Altered Glucose Metabolism in Cancer Metastasis and Drug Resistance

dc.contributor.advisorZhang, Weihua
dc.contributor.committeeMemberWarner, Margaret
dc.contributor.committeeMemberKhurana, Seema
dc.contributor.committeeMemberLev, Dina Chelouche
dc.contributor.committeeMemberGan, Boyi
dc.creatorChen, Jinyu 1985-
dc.date.accessioned2015-08-24T23:48:56Z
dc.date.available2015-08-24T23:48:56Z
dc.date.createdAugust 2013
dc.date.issued2013-08
dc.date.updated2015-08-24T23:48:56Z
dc.description.abstractGlucose, one of the most important energy sources for living organisms, is first broken down through glycolysis then either undergoes oxidative phosphorylation in the mitochondrion or fermentation in the cytosol. Abnormal glucose metabolism was first discovered by Dr. Otto Warburg, i.e. cancer cells carry out irreversible fermentation of glucose in the presence of oxygen, which is also termed aerobic glycolysis. My studies focus on understanding altered glucose metabolism in cancer metastasis and drug resistance. We found that breast cancer brain metastasized cells developed enhanced oxidation of certain amino acids and gluconeogenic activity for survival and proliferation when glucose level is limited. We also found that drug-resistant colon cancer cells exhibited up-regulated aerobic glycolysis to meet the need of a higher amount of intracellular ATP to cope with chemotherapeutic stress. These results suggest alterations in glucose metabolism play critical roles in the development of cancer brain metastasis and drug resistance. The molecular mechanisms identified by this study may serve as potential therapeutic targets for cancer treatment.
dc.description.departmentBiology and Biochemistry, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10657/1045
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectGlucose metabolism
dc.subjectCancer
dc.subjectBreast cancer
dc.subjectBrain metastasis
dc.subjectDrug resistance
dc.subjectATP
dc.subject.lcshCell biology
dc.titleAltered Glucose Metabolism in Cancer Metastasis and Drug Resistance
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCollege of Natural Sciences and Mathematics
thesis.degree.departmentBiology and Biochemistry, Department of
thesis.degree.disciplineBiology
thesis.degree.grantorUniversity of Houston
thesis.degree.levelDoctoral
thesis.degree.majorCell and Molecular Biology
thesis.degree.nameDoctor of Philosophy

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