Abstract
Understanding the mechanisms of the Warburg shift to aerobic glycolysis is critical to defining the metabolic basis of cancer. Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) is an aggressive cancer characterized by biallelic inactivation of the gene encoding the Krebs cycle enzyme fumarate hydratase, an early shift to aerobic glycolysis, and rapid metastasis. We observed impairment of the mitochondrial respiratory chain in tumors from patients with HLRCC. Biochemical and transcriptomic analyses revealed that respiratory chain dysfunction in the tumors was due to loss of expression of mitochondrial DNA (mtDNA)-encoded subunits of respiratory chain complexes, caused by a marked decrease in mtDNA content and increased mtDNA mutations. We demonstrated that accumulation of fumarate in HLRCC tumors inactivated the core factors responsible for replication and proofreading of mtDNA, leading to loss of respiratory chain components, thereby promoting the shift to aerobic glycolysis and disease progression in this prototypic model of glucose-dependent human cancer.
| Original language | English |
|---|---|
| Article number | eabc4436 |
| Journal | Science Signaling |
| Volume | 14 |
| Issue number | 664 |
| DOIs | |
| State | Published - Jan 2021 |
Bibliographical note
Publisher Copyright:Copyright © 2021 The Authors.
Funding
This work was supported by the Intramural Research Programs of NCI-CCR and NICHD. This project was funded in part with federal funds from the Frederick National Laboratory for Cancer Research, NIH, under contract HHSN26120080001E. Sanger sequencing was conducted at the CCR Genomics Core at the NCI, NIH, Bethesda, MD, USA.
| Funders | Funder number |
|---|---|
| NCI-CCR | |
| National Institutes of Health (NIH) | HHSN26120080001E |
| National Institutes of Health (NIH) | |
| National Childhood Cancer Registry – National Cancer Institute | |
| NIH National Institute of Child Health and Human Development National Center for Medical Rehabilitation Research | ZIAHD001602 |
| NIH National Institute of Child Health and Human Development National Center for Medical Rehabilitation Research | |
| Eunice Kennedy Shriver National Institute of Child Health and Human Development | |
| Frederick National Laboratory for Cancer Research |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 3 Good Health and Well-being
ASJC Scopus subject areas
- Biochemistry
- Molecular Biology
- Cell Biology
Fingerprint
Dive into the research topics of 'Mitochondrial DNA alterations underlie an irreversible shift to aerobic glycolysis in fumarate hydratase-deficient renal cancer'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver