Center for Gastrointestinal Cancers Annual Lectureship: "Colorectal Cancer Disparities: Understanding Biological & Environmental Interactions"
June 01, 2021Yale Cancer Center Grand Rounds | June 1, 2021
Marcia Cruz-Correa, MD, PhD, AGAF, FASGE
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- 00:00Young presentation that I have
- 00:02lined up here right back to
- 00:05the share screen and let's see.
- 00:07I guess this is the one share.
- 00:11Let's see here we go and
- 00:14then we connected this.
- 00:15There we go. Excellent
- 00:18Doctor Chris Korea.
- 00:19So nice to see you so we I did I did
- 00:24your lovely intro before but and we
- 00:27have actually I will just say verbally
- 00:29but we have a plaque to give you.
- 00:31You are actually officially our
- 00:34inaugural annual speaker for
- 00:36our new Center for GI cancers,
- 00:39so we're happy to invite you and.
- 00:42Really excited to hear you today so.
- 00:45And we appreciate everyone who
- 00:48waited and I think Doctor Cruz
- 00:50Correa will probably need to end.
- 00:52Maybe like 5 minutes before
- 00:55the hour or 10:10.
- 00:57I mean, if you, I'll let you figure that out.
- 00:58We'd love to have time for questions,
- 01:00but if not, we understand.
- 01:01Alright.
- 01:02Yeah, wonderful and well, I'll do.
- 01:04You know, the last part I can skip.
- 01:06And yes, I'll stop more or less when
- 01:08I see that the time it's it's there.
- 01:10So we have about 2025 minutes.
- 01:11OK, well, so good afternoon to everyone
- 01:14and and thank you very much for.
- 01:16Dealing with the with life right?
- 01:19I mean we plan many things in our lives
- 01:21and there are things that you learned.
- 01:23I think the older that we get that
- 01:25there are things that you can control.
- 01:26That there are things that you cannot control
- 01:28so later and I'll tell you what happened.
- 01:29But you know, the good news is that
- 01:31we're here and I'm delighted and
- 01:33honored to be part of this presentation.
- 01:35So briefly, address some of the concepts
- 01:38that our group have been working on
- 01:40for the last years over a decade.
- 01:42At this point,
- 01:43and we have been focusing on Latinos and.
- 01:47Family communities,
- 01:47and specifically in GI cancers,
- 01:49and I'm going to, you know,
- 01:51narrowed the topic to colorectal
- 01:53cancer as one of the areas that
- 01:56we have been no witness of,
- 01:58the disparities that we have seen across
- 02:00the different ethnic and racial groups.
- 02:03So the talk has three main areas and
- 02:05I will briefly discuss some of the
- 02:08epidemiological data that we have.
- 02:10Then I'm going to talk about some of
- 02:12the environmental factors and then
- 02:14the molecular aspects and then putting
- 02:15that together trying to understand,
- 02:17you know.
- 02:18How much do we know of the reasons
- 02:21behind these academic that we're
- 02:24seeing across different groups,
- 02:26including the Hispanics?
- 02:27So this chart comes from the
- 02:30national databases where you can
- 02:33see that by the year 2050, right?
- 02:35You can see where the places where you're
- 02:38going to have larger groups of Hispanics,
- 02:40and you know colorectal cancer.
- 02:42It's one of those answers that
- 02:44continue to increase this.
- 02:45Find the available at screening
- 02:48methods that we have.
- 02:50And when you look at,
- 02:51you know the world right in the in
- 02:54the US we see that many Hispanic U.S.
- 02:58citizens have this high burden of this.
- 03:01So is the second most common
- 03:03cause of cancer among US Latinos.
- 03:05You can see the number there,
- 03:07the third most common cause
- 03:09of cancer worldwide.
- 03:11And then the fourth most common
- 03:14cause of cancer related death.
- 03:16So clearly this is a disease
- 03:18that continues to.
- 03:20You know to to take the life of
- 03:22so many people every single year.
- 03:24And here I described right where we
- 03:26go from the public to the cancer and
- 03:28this takes close to 10 to 15 years for
- 03:31people without having to re cancer.
- 03:33And when you put this into perspective right?
- 03:36And this is,
- 03:37I'm thinking about Latinos in America.
- 03:39You see that depending where you are,
- 03:42the burden of colorectal cancer
- 03:44changes dramatically.
- 03:45So if you look at,
- 03:46you know I put some arrows in order
- 03:48why at him? Tina and Puerto Rico.
- 03:50You can see the differences in
- 03:52incidence and mortality both
- 03:53for male and and female,
- 03:55and you know places like autowire,
- 03:57jentina, and Puerto Rico.
- 03:58We have things in common.
- 04:00Not only do we speak the same language,
- 04:01but with different accents, right?
- 04:03For those of people that know the
- 04:06different Hispanic communities.
- 04:08But we also eat a lot of meat, right?
- 04:10So that that's one of those factors
- 04:12that might come into play or might
- 04:14be contributing at this point and
- 04:16then looking at the data from the US.
- 04:18This is actually age adjusted.
- 04:20Incidence rates are in
- 04:22colorectal cancer in the US.
- 04:24Looking at the different races and
- 04:26Hispanic communities so you can see that
- 04:29the bias burden for both male and female,
- 04:31it's in the black community.
- 04:33However,
- 04:33when you look at what American Hispanics,
- 04:35it's very closed to when you
- 04:37combine all the races and is.
- 04:39I'm close to.
- 04:42I Landers, or are Native Americans, right?
- 04:46So you can see how.
- 04:48Even within the Hispanic communities,
- 04:50there are differences depending
- 04:51where the Hispanic is coming from,
- 04:54so it's not the same thing as when
- 04:56you look at Hispanics that are are
- 04:58from Mexico versus those that are
- 05:00from the Caribbean and you can
- 05:02hypothesize many of the reasons
- 05:03why we're seeing those differences.
- 05:05So this article was is,
- 05:07or over 10 years old.
- 05:08But I still look at this because
- 05:10it was mesmerized actually met
- 05:12Doctor Pinheiro in a presentation.
- 05:14And basically you know when
- 05:16they were looking at,
- 05:17he was evaluating the incidents.
- 05:19Rate for cancer and he looked at
- 05:22different groups and he looked at the
- 05:24incidence rate of cancer in their
- 05:26native community and then when they
- 05:28move to the US and this is data from Florida.
- 05:31So you can see that you know Mexicans
- 05:34and Mexico had a lower incidence rate
- 05:36as compared to Mexicans that move to the US.
- 05:39The same thing happened for Puerto Rican's.
- 05:41You can see how they you know
- 05:43when they are native Puerto
- 05:45Ricans living in Puerto Rico.
- 05:47The incidence is slower but
- 05:48when they move to the US this.
- 05:50Number goes up the same thing for
- 05:52Givens and look at how very close to
- 05:55their incidents for incidence rate for
- 05:57those that are native from Florida,
- 06:00so you know it's impossible to
- 06:02have this huge change based on the
- 06:05on the genetic changes, right?
- 06:07So so of course,
- 06:08environment is what really comes
- 06:10over and over into place.
- 06:12So I started working with several
- 06:15groups from the US including an
- 06:18Doctor Mariana Stern from University
- 06:21of Southern California.
- 06:22Anne Marie Anna published this article.
- 06:25A few years ago where she look
- 06:27at the disparities in colorectal
- 06:28cancer incidence among Latinos.
- 06:30But California is a melting pot.
- 06:32Don't know, right?
- 06:33So we have Latinas from South America,
- 06:35Central America and of course
- 06:37also from the Caribbean.
- 06:38So she was able to identify that 17% of
- 06:42all Latinas from California presented
- 06:44with colorectal cancer before the age of 50.
- 06:47So early on set colorectal cancer
- 06:49and this was published before the
- 06:51recent guidelines,
- 06:52right where?
- 06:53Now we start performing colorectal cancer
- 06:55screening at the age of 45 according
- 06:58to the US Preventive Services Task Force.
- 07:00So this is before,
- 07:01you know,
- 07:02five years before that happened
- 07:04and you know she had a good
- 07:06representation from Puerto Rican's
- 07:07and also Mexican Americans.
- 07:09And then of course the other you
- 07:12know worrisome factor was at
- 07:1449% of Latinos presented with
- 07:16colorectal cancer and advanced age.
- 07:18So not only younger,
- 07:19but also an advanced age.
- 07:21And this is data from our group.
- 07:23When they presented with early
- 07:25onset colorectal cancer,
- 07:27this survival is is less.
- 07:29So now let's let's chip gears
- 07:30and talk a little bit about.
- 07:32You know some of the environmental factors
- 07:34that we and others have been evaluating so.
- 07:37Things like tobacco are fabulous
- 07:39diet right which sometimes can
- 07:41not be as good as it could.
- 07:43It could be obesity, which is, you know,
- 07:46a common risk factor for many diseases,
- 07:48including cancer and of course is
- 07:50sedentary lifestyle an you know.
- 07:52Looking at the different aspects
- 07:54right a few years ago in 2015 The
- 07:58Who for the first time you know
- 08:01classified red and processed meat as
- 08:04part of the carcinogenic risk factor.
- 08:07So specifically.
- 08:08Processed red meat was classified
- 08:11as a carcinogenic class one,
- 08:13and to put everyone into context,
- 08:15this is the same category where you have H.
- 08:16Pylori where you have asbestos where we
- 08:20have other other factors like tobacco,
- 08:23so they're all carcinogens.
- 08:25Class one,
- 08:26but the risk associated to exposure of
- 08:29this particular environmental factor.
- 08:32It's much less that that you know
- 08:34that observed in other risk factors
- 08:36such as asbestos, for instance.
- 08:39Nonetheless,
- 08:39you know this started as supported
- 08:42on the role between the exposure
- 08:44of these carcinogens because they,
- 08:46you know we know now know that there
- 08:48are changes that occur at the level of
- 08:51the DNA where you get a heterocyclic
- 08:53amines and you know changes that
- 08:55increase carcinogenesis at the level
- 08:57of the colon and in the colony sites.
- 09:00So few years later there were also articles
- 09:03that started to put together the role
- 09:06of the diet with the role of the microbiome,
- 09:09right?
- 09:09And we've seen.
- 09:11This on our group have also evaluated
- 09:13the potential link between the
- 09:16MICROBIUM and the cancer risk,
- 09:18so this article was one of the few first
- 09:22rather articles that started to look at
- 09:25the role of the microbiome and cancer,
- 09:28and this beautiful paper by the group
- 09:31at Pittsburgh presented data looking
- 09:34at the different they phylogenic
- 09:36differences in the gut microbiome
- 09:39between Africans from Africa.
- 09:41That's on the left panel and
- 09:43Africans from North America.
- 09:44So you know the classic African U.S.
- 09:48citizens so you can see that even
- 09:51if we don't know that much about,
- 09:53you know these statistics, right?
- 09:55You can see that the colors right of
- 09:58these beautiful figures were different,
- 10:00right?
- 10:00So the Africans from Africa have it?
- 10:03How distinct microbiota as compared
- 10:06to the North American Africans?
- 10:09Right there African Americans rather.
- 10:11So and then you know when you look
- 10:14further down and he did and you look
- 10:16at you know what type of metabol I'm
- 10:19a metabolomics was present in the God
- 10:22from people that were in Africa and
- 10:25those North American African Americans.
- 10:28Not only was where the bacteria
- 10:30different but also the mandible.
- 10:32You know the type of metabolomics
- 10:34that that were present.
- 10:36So for instance he looked.
- 10:37He looked at short chain fatty
- 10:39acids and he looked also in bile
- 10:41acid and you can see that.
- 10:42Africans had a higher good short
- 10:45chain fatty acids versus the African
- 10:48Americans had more carcinogenic bile
- 10:51acid and you can see how the different
- 10:54compounds that he look at where
- 10:57higher Lee were present at a higher
- 11:00prevalence among individuals that had
- 11:03the microbiome was a distinct microbium.
- 11:05So we started looking.
- 11:07You know,
- 11:08of course, motivated by this group of
- 11:12investigators at Pittsburgh and some others.
- 11:14We started to evaluate not only the
- 11:17bacteria nor the microbiome composition,
- 11:19but also the jeans that are
- 11:22present because depending on the
- 11:24Organism that it's in the bowel,
- 11:26the jeans that are produced and the
- 11:28answer the proteins that are produced
- 11:29by the jeans and the specific genes
- 11:31that we can find that are bacterial
- 11:33genes may also modify the risk of having
- 11:36inflammation and the risk of cancer.
- 11:39So we started looking at this particular
- 11:41group of genes which are bacterial.
- 11:44Jeans specifically PKS,
- 11:47CTD and jealous,
- 11:50and eyes Ian such toxic necrosis factor
- 11:54necrotizing factor rather an USB,
- 11:56and you can see here is summary of what is
- 11:59the role of this particular bacterial genes,
- 12:02and our hypothesis was that in patients
- 12:05that have colorectal cancer had had
- 12:07colorectal cancer or those with polyps.
- 12:10We may see a difference not only
- 12:11in the bacterial composition,
- 12:13but also in the bacterial genes.
- 12:16And we set ourselves to do
- 12:18a series of experiments,
- 12:19and we published recently an you
- 12:22know from this group of of bacterial
- 12:24genes we were able to start to
- 12:27see some differences right?
- 12:29So I can show you here the USP was we saw,
- 12:33you know a small signal.
- 12:35We are repeating this sample and
- 12:38adding additional bacterial genes
- 12:40to try to understand whether or
- 12:42not you know is it bacterial.
- 12:45You know the the microbiome per say.
- 12:47Or it is are those bacterial genes,
- 12:49the ones that are really increasing the risk?
- 12:52So there's a lot more that
- 12:54is happening in this arena.
- 12:56But you know,
- 12:57I'm a physician scientist and you know
- 12:59you always have to think about you.
- 13:01Know if we can modify certain things
- 13:03like you know what we eat and if we're
- 13:06able to show that a particular dysbiosis
- 13:09in your God is associated with you.
- 13:12Know with the inflammation
- 13:13and changes in the genome,
- 13:16then you know we'll work on that.
- 13:17But there are things that are like low,
- 13:19you know,
- 13:20low hanging fruits and you know access to
- 13:22healthcare which we all know that it has.
- 13:24If it's you know,
- 13:26huge impact in this part is that
- 13:28we have been observing,
- 13:29including disparities,
- 13:30that we see in colorectal cancer.
- 13:33I said it help collaborating with them
- 13:37several investigators at the University
- 13:39of Puerto Rico that were focusing
- 13:41on delays in access to healthcare.
- 13:43So basically there are three main
- 13:45belays that that could occur that could.
- 13:47Interfere with the outcome of a patient,
- 13:51so you have what's called primary delay.
- 13:53Secondary Lillian tertiary deley so
- 13:55primary deley is from this the time
- 13:58that the patient has a symptom to
- 14:00the first contact with the primary
- 14:03care physician.
- 14:04Secondary dilay is from the first
- 14:06contact with that primary care
- 14:08physician to a confirmed diagnosis
- 14:10and then the third chair is.
- 14:12Delay is the time from their confirm
- 14:15diagnosis to the start of treatment
- 14:17an disparities in any of these
- 14:19areas right between one group of
- 14:21patients and another group of patients,
- 14:23or or across segments of the population
- 14:26like rural versus urban or people
- 14:29you know with Medicaid versus those
- 14:31that are on commercial insurance.
- 14:34Will result in differences in outcomes,
- 14:36and in fact that was the hypothesis
- 14:39ANAN we we examined my patients with
- 14:42colorectal cancer and this was published
- 14:44a few years ago where we saw in this
- 14:47graph we were looking at relative
- 14:49survival 1/3 and five years of colorectal
- 14:52cancer among Hispanics from Puerto Rico.
- 14:55An in orange you can see in the
- 14:57top line you can see the relative
- 15:00survival among individuals that were
- 15:02on a private insurance an.
- 15:04On the Gray or the second line you
- 15:06can see their relative survival
- 15:08for individuals that diagnosed with
- 15:10colorectal cancer at different,
- 15:12you know time points and you can
- 15:14see that at 1/3 and also five years,
- 15:17this survival associated, you know,
- 15:20seen and observed among people that
- 15:22had the public insurance was lower as
- 15:24compared to the private insurance,
- 15:26and this was adjusted for buy as many
- 15:29factors as we could possibly adjust for.
- 15:32But of course lifetime exposure.
- 15:34Right to die it to the place that you
- 15:36were raised to the community that you leave.
- 15:39We cannot account for that,
- 15:41so you know there might be things
- 15:43that occur much before we're able
- 15:45to classify patients according to
- 15:46the health insurance that we can
- 15:48actually not measure.
- 15:49That is beyond their the.
- 15:53Environmental variables we couldn't.
- 15:55We can't control for,
- 15:57so I want to finalize.
- 15:59You know, I now focus on an area that
- 16:01is extremely important, which is.
- 16:04Can we modify the genes?
- 16:06Can we blame the genes right?
- 16:07And when you think about Hispanics,
- 16:10Hispanics, we are a group of
- 16:12individuals that are a mix race.
- 16:14Hispanics have a mixture on depending
- 16:17where you find the Latinos in
- 16:19the US or or in Latin America.
- 16:21The composition of our genes
- 16:23berries dramatically.
- 16:24So if you go to places like in the Caribbean,
- 16:2720% of our genes are from African ancestry
- 16:30and in fact I did genomic ancestry and
- 16:32I have 14 and you know if you go to.
- 16:35South America there places that
- 16:36most of the genes are Europeans,
- 16:38but there are places where there
- 16:40is a significant percentage of the
- 16:42genes that come from Amerindian,
- 16:44so places like in Central America and
- 16:46and some areas in South America as well.
- 16:49So when the TSJ it started,
- 16:53you know years back now and
- 16:55this was published years ago.
- 16:57Yeah, as part of the Cancer Genome Atlas,
- 16:59one of the questions that we
- 17:01had and we had hoped for,
- 17:03was that when this samples
- 17:04the tumor samples were.
- 17:06We're going to be analyzed that there
- 17:08would be good representation from
- 17:10different racial and ethnic groups,
- 17:12and we all know now that that's not the case.
- 17:15So this is basically for colorectal cancer.
- 17:18There was no data on Hispanics from
- 17:21you know that were included when
- 17:24they evaluated colorectal cancer,
- 17:25but you know, overall we learned that
- 17:2816% of the tumors were hyper mutated and
- 17:31and there was no molecular difference
- 17:33when we look at rectal cancer rectal.
- 17:36You know cancer in direct
- 17:38numbers is cancer in the colon.
- 17:39And of course you know later on papers
- 17:43were published where you know we saw the,
- 17:45you know the differences in the
- 17:48percentage of tumors that came
- 17:50from individuals from minorities.
- 17:52Both racial an Hispanic minority.
- 17:54So of course, you know we need
- 17:56to continue to collect my data.
- 17:58There's a lot of great efforts that
- 18:00I applaud many of the institutions
- 18:02and including the NIH, NCI,
- 18:04and some other, you know,
- 18:06large populations like the.
- 18:08Breaking Cancer Society a CRM,
- 18:10others that have now started
- 18:12funding like that,
- 18:13you know as part of the up the effort to
- 18:15try to understand tumors from minorities,
- 18:18some including the Genie project
- 18:20that I'm sure that you guys are
- 18:23also information are involved with.
- 18:25So this was a publication we've had
- 18:28a few years ago doing a whole genome
- 18:32sequencing for patients with colorectal
- 18:34cancer data from the Puerto Rican
- 18:36Hispanic was included in this server.
- 18:38A fifth of all.
- 18:39Hispanics were from Puerto Rico
- 18:41and you can see that we were able
- 18:43to replicate some of the GI.
- 18:45You know the slaves that were
- 18:47seen in non Hispanic groups,
- 18:49but there were some that were only
- 18:50pressing in or his family community.
- 18:52So again there are some differences
- 18:54that may might be drivers of this is,
- 18:57but there's still a lot to do.
- 19:00We started evaluating this
- 19:02somatic that was German profile.
- 19:04We also started violating this
- 19:07melodic profile of Latinos
- 19:08with colorectal cancer and.
- 19:10This is the first publication we
- 19:12had years back and now I have.
- 19:14We have more recent data and I'm
- 19:16going to share with you and the first
- 19:18thing we notice was that Puerto Rican
- 19:20Hispanic with colorectal cancer.
- 19:22Those tumors were not.
- 19:24No, we're not.
- 19:25You know, we're not similar in several.
- 19:28You know? Key biomolecular markers,
- 19:31like you know, microsatellite instability.
- 19:34Right now it is.
- 19:35We know that MSI is so important because
- 19:39it really defines a phenotype that
- 19:43responds beautifully to certain agents,
- 19:46right?
- 19:46Like immunotherapy.
- 19:47So in our regulation,
- 19:49we started seeing that our patients,
- 19:50you know,
- 19:51had very little microsatellite instability.
- 19:53And when you look at the.
- 19:55CPG Island Middle Asian phenotype was also,
- 19:58you know,
- 19:59lower as compared to non Hispanic
- 20:02whites and also are African American.
- 20:05So are tumors were little bit
- 20:07different so we decided in the last
- 20:10three years we decided to replicate
- 20:12this effort and now with the
- 20:15availability of commercial testing an
- 20:17in several organizations that have
- 20:20this information publicly available,
- 20:22we conducted a an analysis that
- 20:24was just probably not published.
- 20:26Was just a presented at the
- 20:29ACR annual meeting.
- 20:30Trying to have better understanding a
- 20:33better grasp of those actionable somatic
- 20:35mutations that are key now of what we
- 20:39all calls precision oncology right?
- 20:42When you think about large institutions,
- 20:45not minorities serving institutions,
- 20:47but those that serve other.
- 20:49You know non minority communities
- 20:51access to precision oncology within
- 20:54the framework of patient care.
- 20:56It's routine.
- 20:56However, when you look at,
- 20:58you know smaller centers community.
- 21:01Hospitals or even you know,
- 21:03minorities every institution.
- 21:04If this is something that
- 21:06it's starting to occur,
- 21:07and thanks to the technology that now
- 21:10has become more financially accessible,
- 21:13we're now being able to incorporate this,
- 21:15you know. River care for patients?
- 21:18Then why is this important?
- 21:20Because there are molecularly
- 21:21targeted therapies that we have
- 21:23seen that not only in GI cancer,
- 21:24but you know in non squamous
- 21:27cell lung cancer.
- 21:28And I'm just showing you some of the
- 21:30key articles that actually change the
- 21:32way that we practice medicine nowadays.
- 21:35So like just zoom up for her two
- 21:37positive and you can see right?
- 21:39Of course for the BRAF mutated Melanoma,
- 21:42which now we've seen some other tumors.
- 21:44So it's key because the.
- 21:47Pharmacol from the pharmacogenomics
- 21:50are being studied,
- 21:53but are almost like a secondary.
- 21:55It doesn't start with the pharmacogenomics,
- 21:58it starts with the farmac
- 22:01pharmacodynamics of one group,
- 22:02so this is key.
- 22:04Because if we don't know how prevalent
- 22:06are those biomarkers where we have?
- 22:10Therapies that we can use.
- 22:11Then you know our patients
- 22:13will never benefit.
- 22:14So the first thing that we have to
- 22:16do is to try to understand and we
- 22:18actually were able to do a this.
- 22:20This analysis which I just alluded to
- 22:23and that was burned there is here and
- 22:26we evaluated close to 1929 hundred
- 22:28thirty one individuals and you can
- 22:30see here the distribution of the tumors,
- 22:33and you know,
- 22:34we we look at, you know,
- 22:36the how many most of you know 60% male,
- 22:38I mean female and you can see the.
- 22:40Age distribution for the
- 22:42people that we evaluated.
- 22:43We used commercially available testing
- 22:45and we did it in collaboration with
- 22:47the Precision Oncology Alliance and
- 22:49we look at actionable mutations
- 22:52specifically for colorectal cancer,
- 22:54and you can see you know if you
- 22:56look at your patient population.
- 22:58We saw, you know,
- 23:00find different prevalence of some
- 23:02of the key oncogenes and some
- 23:04of the key markers.
- 23:06So for instance,
- 23:07video one was only present
- 23:08in 1% of our patients MSI.
- 23:11In 2%, which is much less than other groups,
- 23:14you can see how Keras,
- 23:16which entered be rough,
- 23:19was also highly prevalent.
- 23:22So what we did was that we compare
- 23:24our data from patients data that
- 23:27was available for non Hispanic
- 23:29colorectal cancer tumors that
- 23:31were reported as part of the PGA.
- 23:33And here you can see the actionable genes.
- 23:36Queiroz be rough interests or
- 23:39her to Intrax Ann.
- 23:41You can see in green we have the
- 23:44Puerto Rican Hispanics and in
- 23:47blue we have the non Hispanic
- 23:49tumors from the TSJ and for some
- 23:52of the key oncogenes like Keras,
- 23:55ambera you can see that Hispanics
- 23:57from Puerto Rico who are more
- 24:00likely to present with mutations in
- 24:02this particular oncogenes.
- 24:04And that's terrible because then we
- 24:06have less access to some of the you know
- 24:10antibodies against EGFR for instance.
- 24:12This same thing, you know lack of certain
- 24:16biomarkers like PDL one or or Ms one.
- 24:19Among you know, this Hispanic
- 24:22community really also affects right?
- 24:24The availability of therapies to finalize.
- 24:28I want to very briefly show you some of
- 24:32the data that we have been working again
- 24:35with a group of collaborators, actions,
- 24:37collaborators from different places,
- 24:40including them rikidozan.
- 24:42Garner
- 24:45from inside and now he's in New York,
- 24:47so we actually look at African ancestry.
- 24:50Why? Because we know that African
- 24:53Americans have a higher risk
- 24:55of having colorectal cancer.
- 24:57They're having higher mortality as compared
- 24:59to other non African American groups,
- 25:02so we look at on the association
- 25:06between having African ancestry in
- 25:09Puerto Rican Hispanics and certain
- 25:12phenotypes and also molecular markers.
- 25:15In our patients with rectal cancer,
- 25:17so we were able to identify that individuals
- 25:21with African ancestry were more likely
- 25:24to have tumors located in thatis.com.
- 25:26So two times more likely than those
- 25:28Puerto Ricans without African ancestry.
- 25:30We also saw that the differentiation,
- 25:32they weren't the tumor from Puerto
- 25:35Rican's with higher African ancestry had
- 25:37a higher likelihood of having a low to
- 25:40moderate tumor difference differentiation.
- 25:43And you know,
- 25:45this might also contribute to the.
- 25:48Observe increased mortality that
- 25:50we observe in our population.
- 25:52So to finalize and there's many more data
- 25:55than we could discuss that may be asking
- 25:58the QA I want to keep everyone in mind.
- 26:01Keep everyone in mind that still the
- 26:03number one tool that we have available
- 26:06for you know the Christmas parties
- 26:08is doing colorectal cancer screening.
- 26:11Having access to die early diagnosis and
- 26:14you know still to this day there still.
- 26:18Differences in the optic of
- 26:21colorectal cancer screening.
- 26:23When you look at the different minorities
- 26:25and racial groups and the same thing
- 26:27we see in Puerto Rican Hispanics and
- 26:29also you can see it in the US Hispanics
- 26:31and because of the burden of disease
- 26:33where we had 10% of our patients with
- 26:36colorectal cancer in Puerto Rico,
- 26:37were part of being diagnosed with
- 26:40colorectal cancer before the age of 50.
- 26:43We move with the Department of Health,
- 26:45and in 2015 we.
- 26:47Put together an administrative order to start
- 26:50screening for colorectal cancer with feet.
- 26:53So we have a national feed program
- 26:56for people without family history to
- 26:58start performing fit testing at age 40,
- 27:01we were able to increase our rates to 65%,
- 27:05which was the highest and that was
- 27:07just before the Big Hurricane and
- 27:09then copied came to Puerto Rico.
- 27:11So now we have where's have started again,
- 27:13you know,
- 27:14to continue to promote screening.
- 27:17So in summary.
- 27:18We've been able to briefly discuss some
- 27:20of the Asian associated disparities,
- 27:23writing incidents and survival for
- 27:25correct cancer among US Hispanics.
- 27:27We have shown differences not only
- 27:30between non Hispanics and Hispanics,
- 27:32but also across the different
- 27:35Hispanic subpopulations.
- 27:36We discuss some of the differences are
- 27:40at the molecular level that include key,
- 27:44actionable biomarkers that are not present
- 27:46or present depending on the biomarker.
- 27:49Among Hispanics compared to non Hispanic
- 27:51and you know how non European ancestry,
- 27:54at least in the Caribbean,
- 27:55Hispanics from Puerto Rico was
- 27:57associated with worse colorectal
- 27:59cancer outcomes and nutrition,
- 28:01which you know when you think
- 28:03about the disease,
- 28:04is front and center might mediate
- 28:08the microbiome dysbiosis and it.
- 28:11You know we might be able to modify some of
- 28:14those risk factors.
- 28:16This is the team that I work with
- 28:18and this was this past March.
- 28:19For the correct awareness dressed in
- 28:22blue and I would like to finalize by
- 28:25thinking about the National Cancer
- 28:28Institute and the NIGMS as well as
- 28:31local fan from Puerto Rico government.
- 28:35For some of the work that you have seen,
- 28:37ankle appears from multiple places
- 28:39including the friend of mine, Doctor,
- 28:41Shabbir Yard and hopefully maybe he's
- 28:44in the call and some other great friends
- 28:48across different centers in the US.
- 28:50For what we do, thank you very much.
- 28:52I think I was trying to make
- 28:54the time 10 minutes. Let's see.
- 28:57This is part of our campaign
- 28:59that we have for.
- 29:00We call it the other cleavage
- 29:03so our people to stop,
- 29:04you know,
- 29:05to think about the colon and do
- 29:07colorectal cancer screening.
- 29:11Can you hear me again?
- 29:13OK, good good good thank you so much.
- 29:17You are efficient and I was trying to.
- 29:20I'm sorry no that's so great.
- 29:23So I am going to Roy.
- 29:26I might let you ask a question first
- 29:28if you're willing while I pull up.
- 29:30Your Cam has a massive thanks.
- 29:32So much for being here.
- 29:33How are you Roy?
- 29:36Let me ask you a question.
- 29:37It's something related so you know
- 29:38I'm working very closely with
- 29:39the Clinical Trials Office here
- 29:40and I notice that our accrual.
- 29:42Of Latin Hispanic patients is really poor,
- 29:45and that's something throughout
- 29:47the United States.
- 29:48Any any tips on how we can improve that?
- 29:50I know it's a general problem. Yeah,
- 29:52it's a general problem there.
- 29:53There's a lot of distrust, right?
- 29:55And and I think still,
- 29:57there's a huge Guinea pig concept,
- 30:00so you know one of the things that
- 30:02we have done, locali, you know.
- 30:03And remember, I'm a Puerto Rican
- 30:05working with Puerto Rican's, right?
- 30:06So so people shouldn't be discriminated or
- 30:09feel discriminated because of the you know,
- 30:10rate, racial and ethnic concordance.
- 30:13But one of the concepts that we
- 30:15have started to use is that I don't
- 30:17like to use the word investigation,
- 30:20which means research,
- 30:21because when you put the word
- 30:24investigation or research,
- 30:25or you know people immediately, they stop so.
- 30:28So the word that we're using now.
- 30:29We used protocols, you know,
- 30:32National Cancer Institute protocol
- 30:34or industry treatment protocols.
- 30:37And then we explained to them what it means.
- 30:40Of course,
- 30:40this is before the FDA approves the drug,
- 30:43so I tell them that.
- 30:44But it's almost like it's at
- 30:46least this is what I see.
- 30:47You know, when you use the word research,
- 30:50most people simply become scared,
- 30:52so you need to have cultural competency
- 30:55an you know as much as we can have,
- 30:58you know someone to speak to
- 31:00them in the remaining language.
- 31:01And if you can do that concordance,
- 31:03it increases your chances
- 31:05you know dramatically.
- 31:08During navigators now, and we're
- 31:09translating all the consent forms.
- 31:11Salute Lee, you know Roy.
- 31:13Even there be a you know.
- 31:15I wish everyone would
- 31:16imagine that they will have.
- 31:18You know, multiple language
- 31:19consent forms they do not sovyet
- 31:22trials which I have, you know,
- 31:24and I I was adamant about the fact
- 31:26that you know they had to have any
- 31:28more than one language because you
- 31:29know we have people that are U.S.
- 31:31citizens that speak another language.
- 31:33So I said we better than you
- 31:35know and it's it's working.
- 31:36So yeah black,
- 31:37I congratulate you.
- 31:39For for doing that
- 31:40where we're trying now,
- 31:41listen before we go on.
- 31:42Cam has a little presentation for you.
- 31:46I mentioned in the beginning that
- 31:49Russia is our our inaugural inaugural
- 31:52recipient of this annual Lectureship Plex,
- 31:56so we will be sending this to you.
- 31:58We wish it were interested,
- 32:00but we're we're really grateful for
- 32:02your presentation and presence today,
- 32:04so thank you so much for joining us. Thank
- 32:07you, thank you very much.
- 32:08It's an honor, and you know.
- 32:18I'm trying to pull all these things together.
- 32:20It's it's, you know,
- 32:21he's really a Humira Chal sometimes.
- 32:24And you know and we need to work as teams,
- 32:26so I'm glad that you are. You know,
- 32:29doing this for thank you. Thank you.
- 32:30Yes, now we would.
- 32:31We would love to do that, you know.
- 32:33And I think that one thing
- 32:35just to highlight for you.
- 32:36And I think for potential
- 32:38future conversations and
- 32:39collaborations are are greater.
- 32:41New Haven community is very diverse
- 32:43and I think we have a lot of
- 32:46you know Hispanic patients and.
- 32:48My patients and I think,
- 32:50as I'm sure you know,
- 32:51this three year work with doctor
- 32:53your were eager to make sure that
- 32:55we're meeting the needs of these
- 32:57patients in our catchment area.
- 32:58And I think I was really,
- 33:01I think I really liked your work on
- 33:03the microbiome versus bacterial genes,
- 33:05and I think really trying
- 33:07to do a deeper dive,
- 33:09both in terms of that but also
- 33:11precision medicine to really meet the
- 33:13needs of a more diverse population.
- 33:15That's correct, that's correct,
- 33:16and you know, it's almost like impossible.
- 33:18You know to try to answer every question,
- 33:21so the way that we have you know our
- 33:23approach has been to really collaborate
- 33:25with teams and you know from basic
- 33:28scientists and you know to physician
- 33:30scientists and even the Community, you
- 33:32know that that work that I show you about.
- 33:34You know access to care.
- 33:35I mean, I, I, I was really amazing.
- 33:38I love the molecules and you
- 33:40know when you talk about jeans,
- 33:41I get very excited but but
- 33:42then I realize that, you know,
- 33:44we have to also tackle the community.
- 33:46The access to health care.
- 33:49It doesn't explain all.
- 33:50OK, because you sweesy populations
- 33:52any this has been published many
- 33:54times over that with the same
- 33:56access to care you see differences
- 33:58right using these disparities.
- 34:00But you know some of the key
- 34:02factors may be mediated to you,
- 34:04know those genes that we inherit,
- 34:06and there was a an article published
- 34:08maybe three months ago by the group that
- 34:10blanket and it was published in Nature.
- 34:12He was about.
- 34:14Lung cancer an ancestry and you
- 34:16know it was beautifully presented
- 34:19that depending on your ancestry,
- 34:21particular genes that were driver for
- 34:24lung cancer were present, so you know.
- 34:26Of course,
- 34:27if you are exposed to more carcinogens right,
- 34:30you will have a higher risk
- 34:31for developing cancer,
- 34:32but it was not explained by the
- 34:35environment was explained by the genes.
- 34:37So this same approach we need to dive deeper.
- 34:40And now you know,
- 34:41identify you know what are
- 34:43those other you know.
- 34:44Genes that might be related to inflammation,
- 34:47you know, stress related and not really.
- 34:49You know, you know Uncle genes,
- 34:52but maybe just stress related right?
- 34:54And you get more of you know like
- 34:56for instance we've been looking into
- 34:58interleukins and whether or not
- 35:00having a particular Geno type in key
- 35:02interleukins that are inflammatory
- 35:04mediated my increase the risk of
- 35:07developing cancer once you you
- 35:09know expose that to two whatever
- 35:12carcinogen and we're doing that.
- 35:14Usina organoid models.
- 35:15It's not my.
- 35:16My work is part of the team,
- 35:18so you know there are many more
- 35:20questions that we could try to attend by
- 35:23really dissecting all the different areas.
- 35:28That's great, I don't see any
- 35:29other questions in the chat,
- 35:31but please post them if you have any,
- 35:33and I'll maybe ask.
- 35:34Ask another one or just a comment
- 35:37you know I did not know that the
- 35:39TGA had really like such little
- 35:42diversity and zero Hispanics,
- 35:44and I think that I'm wondering
- 35:46as you can in your sort of
- 35:48leadership roles in the survey,
- 35:50CR and other organizations.
- 35:52What are some ways that you
- 35:55are going to propose basic and
- 35:58translational researchers?
- 35:59To conduct more diverse research,
- 36:02yeah and and you know,
- 36:03thank God that this has started already,
- 36:06so you know they said,
- 36:07you know when when we were all like you know,
- 36:09looking at the data and you know seeing
- 36:12the the lack of diversity right at the
- 36:15same time a huge effort started on the ACR.
- 36:20Really, you know, promoted the genie,
- 36:22the project Genie right?
- 36:23Which now when you look at the
- 36:26centers that contribute to tumors.
- 36:29Much more diverse centers,
- 36:30and now we have close to
- 36:3310% in certain cancers.
- 36:34We have 1015% representation and
- 36:36then the same thing is happening
- 36:38with the prostate cancer right there.
- 36:40Large cohort of prostate cancer.
- 36:42Men that had our 2000 and it's it's
- 36:45halfway there in the collection
- 36:47and it's really focus on African
- 36:49Americans with prostate cancer.
- 36:51Because I mean,
- 36:52how can we understand and better serve our
- 36:55community of patients if we don't know?
- 36:58You know what is the molecular?
- 36:59Profile for these groups so I will know.
- 37:02I will tell you that the change has
- 37:05been dramatic and you know communities
- 37:07like the ACR and you know and even
- 37:10you know inside NCI because you
- 37:12would say why didn't we think about
- 37:14this right when we put it together?
- 37:15Well, there's something called subliminal.
- 37:18You know bias right?
- 37:19I mean some sometimes subconsciously
- 37:20messed up conscious.
- 37:22Sometimes you don't even think
- 37:23about it because there's nobody on
- 37:25the table to remind you, right?
- 37:27So you know when you look at
- 37:29institutions like you know the.
- 37:30NCI that represents,
- 37:32you know the whole USA America
- 37:35right 350 million,
- 37:36whichever number we are right,
- 37:38we need to have representation and
- 37:39you know when you look at the NCI.
- 37:41For instance,
- 37:42there are two important bodies like
- 37:45they they NCIB right in the baby.
- 37:49I forgot the whole nomenclature
- 37:50is one of the groups that advisory
- 37:53boards with the National Cancer
- 37:55Institute Advisory Board.
- 37:56And then we also have the Board
- 37:58of scientific advisors.
- 37:59So you know,
- 38:00those are the group of individuals
- 38:02that are scientists that represented
- 38:03different segments of our community of sign.
- 38:06That it's important that we start
- 38:08having representation from the top,
- 38:10because if we are not at the table right,
- 38:13you know you know what they idiom says.
- 38:15So I think that that's one of the
- 38:16things that has started to happen,
- 38:18and you know the same thing
- 38:20applies for women.
- 38:20And you know, I always have to,
- 38:22you know, remind people that you
- 38:24know 50% of us are they look like me,
- 38:27but sometimes when you look at the
- 38:29leadership,
- 38:29you only see 10% of us,
- 38:31so you know it's important to
- 38:34promote diversity.
- 38:36Across religion ethnicity,
- 38:37you know gender and you know race
- 38:40and I'm starting with leadership
- 38:42positions and when we are there
- 38:44you know then we make,
- 38:46you know we we make our point.
- 38:47We make sure that we know we're
- 38:49not oblivious to that.
- 38:50So I think you know the short
- 38:52answer is that we're doing better.
- 38:53We're going to have good data in the next few
- 38:55years and that data that I just showed you.
- 38:58I mean, that was commercial data,
- 39:00so we basically took RSR group
- 39:01of patients and you know,
- 39:03in 10 years before that would have been.
- 39:06Impossible for anyone to afford.
- 39:08You know, over $1000 that that
- 39:10cost about $3000 per patient.
- 39:12And you know that we're required
- 39:14a large or one to do it right?
- 39:16But now we can use those
- 39:18commercially available databases,
- 39:19which you know allows an investigator you
- 39:22know to start comparing and pulling data.
- 39:25You know DJ is only one of the databases.
- 39:27We have multiple lines.
- 39:29I mean, there are multiple lines that.
- 39:32Smart people can I get?
- 39:33You know people that you
- 39:34know have good questions,
- 39:36can pull an evaluate,
- 39:38so hopefully soon will have much more.
- 39:41Great, well we are just
- 39:43about at the hour or so.
- 39:45Thank you Doctor Cruz Correa
- 39:47for joining us today.
- 39:49Thank you for tonight.
- 39:50We're excited to continue the
- 39:52conversation with you and other forums.
- 39:54Roy any other words?
- 39:57It's wonderful to have you here
- 40:00and hopefully someday in person and
- 40:02looking forward to working with you,
- 40:04you've given us many things to think
- 40:06about that are really important
- 40:07for our community and for patients.
- 40:08And and thanks so much for your time.
- 40:11Thank
- 40:11you very much. We are really
- 40:13privileged group to be able to,
- 40:14you know, do something that we
- 40:16love and I think that's for me.
- 40:18That's the key and am I see
- 40:20that you guys are also,
- 40:22you know doing the same.
- 40:23So thank you for the invitation
- 40:24royal pleasure to see you again.
- 40:27We will be sending you that plaxo.
- 40:29OK, you're gonna love your office about
- 40:32be delighted to I'm right here so
- 40:35thank you. Thank everyone and
- 40:37goodbye. My friends are there
- 40:38as well. So happy to see
- 40:40you all bye bye thank you.