Abstract
Mitochondrial dysfunction represents a pivotal aspect of the pathogenesis and progression of diabetic kidney disease (DKD). Central to the orchestration of mitochondrial biogenesis is the peroxisome proliferator-activated receptor γ coactivator 1-α (PGC1-α), a master regulator with a profound impact on mitochondrial function. In the context of DKD, PGC1-α exhibits significant downregulation within intrinsic renal cells, precipitating a cascade of deleterious events. This includes a reduction in mitochondrial biogenesis, heightened levels of mitochondrial oxidative stress, perturbed mitochondrial dynamics, and dysregulated mitophagy. Concurrently, structural and functional abnormalities within the mitochondrial network ensue. In stark contrast, the sustained expression of PGC1-α emerges as a beacon of hope in maintaining mitochondrial homeostasis within intrinsic renal cells, ultimately demonstrating an impressive renoprotective potential in animal models afflicted with DKD. This comprehensive review aims to delve into the recent advancements in our understanding of the renoprotective properties wielded by PGC1-α. Specifically, it elucidates the potential molecular mechanisms underlying PGC1-α’s protective effects within renal tubular epithelial cells, podocytes, glomerular endothelial cells, and mesangial cells in the context of DKD. By shedding light on these intricate mechanisms, we aspire to provide valuable insights that may pave the way for innovative therapeutic interventions in the management of DKD.
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All data generated or analyzed during this study are included in this published article.
Abbreviations
- DKD:
-
Diabetic kidney disease
- ATP:
-
Adenosine triphosphate
- ROS:
-
Reactive oxygen species
- PGC1-α:
-
Peroxisome proliferator-activated receptor γ coactivator 1-α
- PPARGC1A:
-
Peroxisome proliferator-activated receptor gamma coactivator 1 alpha
- NRF:
-
Nuclear respiratory factor
- MC:
-
Mitochondrial respiratory chain complex
- ERR:
-
Estrogen-related receptor
- MFN1:
-
Mitofusin-1
- TFAM:
-
Mitochondrial transcriptional factor A
- mtDNA:
-
Mitochondrial DNA
- STZ:
-
Streptozotocin
- SOD:
-
Superoxide dismutase
- DRP1:
-
Dynamic-related protein 1
- BAX:
-
BCL2-associated X
- TLR4:
-
Toll-like receptor 4
- LXRs/ABCA1:
-
Liver X receptors/ATP-binding cassette subfamily A member 1
- NEFA:
-
Non-esterified fatty acid
- SIRT:
-
Sirtuin
- 8-OHdG:
-
8-Hydroxydeoxyguanosine
- PGRN:
-
Progranulin
- hEC-SOD:
-
Human extracellular superoxide dismutase
- PRR:
-
(Pro)renin receptor
- CHOP:
-
C/EBP homologous protein
- GCS:
-
γ-Glutamylcysteine synthase
- NQO1:
-
NAD(P)H dehydrogenase quinone 1
- HO1:
-
Heme oxygenase-1
- GSH:
-
Glutathione
- GSH-Px:
-
Glutathione peroxidase
- NOX:
-
NADPH oxidase
- CPT1:
-
Carnitine palmitoyltransferase 1
- MCAD:
-
Medium-chain acyl-CoA dehydrogenase
- PDK4:
-
Pyruvate dehydrogenase kinase 4
- TRG:
-
Triglyceride
- CHOL:
-
Cholesterol
- OPA1:
-
Optic atrophy 1
- TUG1:
-
Taurine-upregulated gene 1
- DPP-4:
-
Dipeptidyl peptidase-4
- KEAP1:
-
Kelch-like epichlorohydrin-associated protein 1
- GLP-1:
-
Glucagon-like peptide-1
- Ang II:
-
Angiotensin II
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Acknowledgements
We gratefully acknowledge Ruobing Wang for providing intellectual support and helpful discussions.
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This research was supported by grants from the National Natural Science Foundation of China (No. 82100747, No. 82170737, No. 81970599, No. 82370707); the Guangdong Provincial Key Laboratory of Nephrology (No. 2020B1212060028); the NHC Key Laboratory of Clinical Nephrology (Sun Yat-sen University).
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The study was conceptualized by SY, BL, and WC. Literature investigation and draft of the manuscript were performed by SY, MZ, and BL. WC and SCWT contributed to the revision of the manuscript.
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Ye, S., Zhang, M., Tang, S.C.W. et al. PGC1-α in diabetic kidney disease: unraveling renoprotection and molecular mechanisms. Mol Biol Rep 51, 304 (2024). https://doi.org/10.1007/s11033-024-09232-y
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DOI: https://doi.org/10.1007/s11033-024-09232-y