2022
Lactate-dependent chaperone-mediated autophagy induces oscillatory HIF-1α activity promoting proliferation of hypoxic cells
Kshitiz, Afzal J, Suhail Y, Chang H, Hubbi M, Hamidzadeh A, Goyal R, Liu Y, Sun P, Nicoli S, Dang C, Levchenko A. Lactate-dependent chaperone-mediated autophagy induces oscillatory HIF-1α activity promoting proliferation of hypoxic cells. Cell Systems 2022, 13: 1048-1064.e7. PMID: 36462504, PMCID: PMC10012408, DOI: 10.1016/j.cels.2022.11.003.Peer-Reviewed Original ResearchConceptsHIF-1α activityActivation of genesChaperone-mediated autophagyCancer cellsCell divisionIndividual cancer cellsRegulated processPatient-derived cancer cellsSubset of cellsMolecular mechanismsFluorescent reportersSingle-cell responsesCancer cell linesCell linesGenesHypoxic tumor cellsHIF-1αHypoxic conditionsCellsBroad suppressionAggressive growthTumor cellsHypoxic cellsOscillatory activityExtracellular lactate
2005
Intercellular transfer of P-glycoprotein mediates acquired multidrug resistance in tumor cells
Levchenko A, Mehta B, Niu X, Kang G, Villafania L, Way D, Polycarpe D, Sadelain M, Larson S. Intercellular transfer of P-glycoprotein mediates acquired multidrug resistance in tumor cells. Proceedings Of The National Academy Of Sciences Of The United States Of America 2005, 102: 1933-1938. PMID: 15671173, PMCID: PMC545583, DOI: 10.1073/pnas.0401851102.Peer-Reviewed Original ResearchConceptsFunctional P-gpP-gpTumor cellsMultidrug resistanceP-gp-mediated resistanceP-gp-negative cellsToxic drug concentrationsP-gp-positive cellsIntercellular transferResistant tumor cellsDifferent tumor cell typesTumor cell typesTumor massTumor stromaP-gp transferTumor typesP-glycoproteinStromal elementsDrug resistanceDrug concentrationsTumor samplesBiologic propertiesCancer therapyCell typesCells