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The Role of Monounsaturated Fatty Acids in Ferroptosis
The Role of Monounsaturated Fatty Acids in Ferroptosis
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104746
- ISBN
- 9798290651033
- DDC
- 572.6
- 서명/저자
- The Role of Monounsaturated Fatty Acids in Ferroptosis
- 발행사항
- [Sl] : Stanford University, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 76 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Dixon, Scott.
- 학위논문주기
- Thesis (Ph.D.)--Stanford University, 2023.
- 초록/해제
- 요약Ferroptosis is an iron-dependent, oxidative form of cell death that is a result of toxic accumulation of polyunsaturated fatty acid phospholipid hydroperoxides (PUFA-PL-OOH). This death can occur upon inhibition of the phospholipid glutathione peroxidase, GPX4. I find here that cancer cell lines are not uniformly reliant on GPX4 for cell survival. A compendium of factors drives GPX4 essentiality including PUFA content within cells but also reliance on de novo MUFA biogenesis. This work reveals novel MUFAs that can inhibit ferroptosis. Protective MUFAs lead to decreased abundance of toxic PUFA-PLs which reduces ferroptotic stress in cancer cells. I also find that ASCL3, which is required for oleic acid to protect from ferroptosis, is required for some but not all MUFAs to protect from ferroptosis. I identify a novel player in MUFA metabolism, MBOAT2, which prevents cells from using MUFAs to prevent ferroptosis. Finally, I discover that oleic acid can become less protective against ferroptosis when FSP1 is inhibited, depending on the cell line context. Overall, these findings suggest there is a complex machinery within cells that metabolizes MUFAs and complicates our view of how ferroptosis pathways interact.
- 일반주제명
- Dihydrofolate reductase
- 일반주제명
- Plasma
- 일반주제명
- Endoplasmic reticulum
- 일반주제명
- Cell death
- 일반주제명
- Cytochrome
- 일반주제명
- Disease
- 일반주제명
- Cancer therapies
- 일반주제명
- Mutation
- 일반주제명
- Mitochondria
- 일반주제명
- Biology
- 일반주제명
- Metabolism
- 일반주제명
- Lipids
- 일반주제명
- Dehydrogenases
- 일반주제명
- Membranes
- 일반주제명
- Oxidation
- 일반주제명
- Ferroptosis
- 일반주제명
- Ischemia
- 일반주제명
- Metabolites
- 일반주제명
- Vitamins
- 일반주제명
- Transcription factors
- 기타저자
- Stanford University.
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■007cr#unu||||||||
■020 ▼a9798290651033
■035 ▼a(MiAaPQ)AAI32149757
■035 ▼a(MiAaPQ)Stanfordyv064kn6328
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a572.6
■1001 ▼aPope, Lauren Elizabeth.
■24510▼aThe Role of Monounsaturated Fatty Acids in Ferroptosis
■260 ▼a[Sl]▼bStanford University▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a76 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Dixon, Scott.
■5021 ▼aThesis (Ph.D.)--Stanford University, 2023.
■520 ▼aFerroptosis is an iron-dependent, oxidative form of cell death that is a result of toxic accumulation of polyunsaturated fatty acid phospholipid hydroperoxides (PUFA-PL-OOH). This death can occur upon inhibition of the phospholipid glutathione peroxidase, GPX4. I find here that cancer cell lines are not uniformly reliant on GPX4 for cell survival. A compendium of factors drives GPX4 essentiality including PUFA content within cells but also reliance on de novo MUFA biogenesis. This work reveals novel MUFAs that can inhibit ferroptosis. Protective MUFAs lead to decreased abundance of toxic PUFA-PLs which reduces ferroptotic stress in cancer cells. I also find that ASCL3, which is required for oleic acid to protect from ferroptosis, is required for some but not all MUFAs to protect from ferroptosis. I identify a novel player in MUFA metabolism, MBOAT2, which prevents cells from using MUFAs to prevent ferroptosis. Finally, I discover that oleic acid can become less protective against ferroptosis when FSP1 is inhibited, depending on the cell line context. Overall, these findings suggest there is a complex machinery within cells that metabolizes MUFAs and complicates our view of how ferroptosis pathways interact.
■590 ▼aSchool code: 0212.
■650 4▼aDihydrofolate reductase
■650 4▼aPlasma
■650 4▼aEndoplasmic reticulum
■650 4▼aCell death
■650 4▼aCytochrome
■650 4▼aDisease
■650 4▼aCancer therapies
■650 4▼aMutation
■650 4▼aMitochondria
■650 4▼aBiology
■650 4▼aMetabolism
■650 4▼aLipids
■650 4▼aDehydrogenases
■650 4▼aMembranes
■650 4▼aOxidation
■650 4▼aFerroptosis
■650 4▼aIschemia
■650 4▼aMetabolites
■650 4▼aVitamins
■650 4▼aTranscription factors
■690 ▼a0306
■71020▼aStanford University.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0212
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358750▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


