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microRNA 181a-5p Reprogramed Glucose and Lipid Metabolism in NonSmall Cell Lung Cancer

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dc.contributor.advisor임, 상현-
dc.contributor.author김, 정태-
dc.date.accessioned2021-01-06T02:34:24Z-
dc.date.available2021-01-06T02:34:24Z-
dc.date.issued2020-
dc.identifier.urihttp://repository.ajou.ac.kr/handle/201003/19197-
dc.description.abstractmicroRNAs play an important role in cancer metabolisms. miRNA-181a-5p has decreased expression, particularly in non small cell lung cancer tissues and mesenchymal like lung cancer cells. Epithelial-mesenchymal transition mechanisms and cancer metabolism are regulated by the same signaling pathway. Functional analysis was performed to identify the functional role of miRNA-181a-5p in cancer metabolism and to find the target gene. To define the role of miRNA-181a-5p in cancer metabolism, we performed LDH assay, glucose uptake assay, Oil Red O staining, and mitochondrial ATP synthase inhibitor assay. The target gene of miRNA-181a-5p was determined by luciferase reporter assay, qRT-PCR, and western blot analyses. The Functional effect of miRNA-181a-5p on cancer metastasis was measured by migration and invasion assays. Experimental results showed that overexpression of miRNA-181a-5p reduced aerobic glycolysis and adipocytes and decreased cancer cell invasion and migration. Expression of SIRT1 and ACSL4 was reduced by the binding of miRNA-181a-5p to the 3’-UTR. These results suggest that miRNA-181a-5p might participate in the reprogramming of cancer metabolism.-
dc.description.abstractmiRNA는 암 대사에 있어 중요한 역할을 한다. miRNA-181a-5p는 특히 비소세포 폐암조직과 mesenchymal like lung cancer 세포에서 발현이 감소되어있다. Epithelial-mesenchymal transition mechanism과 암 대사는 같은 신호전달체계에 의해 조절된다. 암 대사에 있어서 miRNA-181a-5p의 기능적 역할을 확인하기 위해 기능적 분석을 시행하였으며 표적유전자를 찾았다. 암 대사에 있어서 miRNA-181a-5p의 역할을 정의하기 위해 젖산 탈 수소화 효소분석(LDH assay), 당 흡수 분석(glucose uptake assay), Oil Red O 염색, 미토콘드리아 ATP 합성 억제 분석(mitochondrial ATP synthase inhibitor assay)을 시행하였다. miRNA-181a-5p의 표적유전자를 발광 효소 보고 분석(luciferase reporter assay), qRT-PCR, western blot 분석을 통해 결정하였다. 암 전이에 대한 miRNA-181a-5p의 기능적 효과는 이동(migration)과 침범(invasion)분석으로 측정하였다. 실험 결과 miRNA-181a-5p의 과 발현은 호기성 당 분해와 지방세포를 감소시켰으며 암 세포의 침입과 이동을 감소시켰다. SIRT1과 ACSL4의 발현은 miRNA-181a-5p가 3’-UTR에 결합함으로써 감소하였다. 이 결과는 miRNA-181a-5p가 암 대사의 재조정과정에 참여한다는 것을 의미한다.-
dc.description.tableofcontentsI. Introduction 1
A. Introduction 1
1. The relation between Glucose, Lipid metabolism and Cancer cell 1
2. The role of miRNA in glucose and lipid metabolism 1
3. The role of miRNA in Cancer Cell 2
4. miRNA-181a-5p and Non Small Cell Lung Cancer 2
5. Hypothesis 3
II. Subjects 4
A. Materials and Methods 4
1. Cell culture and growth conditions 4
2. Glucose-uptake assay 4
3. Lactate dehydrogenase assay 4
4. Mitochondrial ATP synthase Inhibition assay 4
5. Measurement of extracellular acidification rate (ECAR) after treatment of miRNA-181a-5p 5
6. Lipid Staining 5
7. Invasion and migration assays 5
8. TaqMan miRNA expression assay 6
9. miRNA mimic and siRNA transfection 6
10. qRT-PCR 6
11. Western blot 6
12. Approach to search the potential target genes of miRNA-181a-5p 7
13. Luciferase reporter assays 7
14. Statistical analyses 7
B. Results 8
1. Function of miRNA-181a-5p in aerobic glycolysis 8
2. miRNA-181a-5p reduces total lipid in lung cancer cell 9
3. miRNA-181a-5p inhibits lung cancer cell migration and invasion in vitro 9
4. SIRT1 and ACSL4 transcriptions are repressed by binding of miRNA-181a-5p to the 10
5. Quantitative analysis of miRNA-181a-5p, SIRT1, and ACSL 4 expression in lung cancer cell lines 10
6. miRNA-181a-5p regulates SIRT1 and ACSL4 expression at mRNA and protein levels 11
C. Discussion 11
III. Conclusion 14
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dc.language.isoen-
dc.titlemicroRNA 181a-5p Reprogramed Glucose and Lipid Metabolism in NonSmall Cell Lung Cancer-
dc.title.alternative비소세포폐암에서 microRNA-181a-5p에 의한 당과 지질 대사의 재조정-
dc.typeThesis-
dc.identifier.urlhttp://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000029522-
dc.subject.keywordmicroRNA-
dc.subject.keywordAerobic glycolysis-
dc.subject.keywordlipid metabolism-
dc.subject.keywordcancer metabolism-
dc.subject.keywordLung cancer-
dc.subject.keyword호기성 당 분해-
dc.subject.keyword지질 대사-
dc.subject.keyword암 대사-
dc.subject.keyword폐암-
dc.description.degreeDoctor-
dc.contributor.department대학원 의학과-
dc.contributor.affiliatedAuthor김, 정태-
dc.date.awarded2020-
dc.type.localTheses-
dc.citation.date2020-
dc.embargo.liftdate9999-12-31-
dc.embargo.terms9999-12-31-
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