Molecular regulation of PGC-1α: from protein-protein interactions and post-translational modifications to pharmacological modulation.
Level 5 - mechanism / opinion, no new human data
Narrative review of molecular mechanisms and pharmacology without original human data.
PubMed 42319436 · doi:10.1007/s00109-026-02694-6
What was done
This review synthesized literature on the molecular regulation of peroxisome proliferator-activated receptor gamma coactivator 1α (PGC-1α). It evaluated protein-protein interactions with transcription factors and nuclear receptors (such as PPARs, ERRs, and NRFs), reviewed post-translational modifications (phosphorylation, acetylation, methylation, O-GlcNAcylation, and ubiquitination), and summarized pharmacological strategies using small-molecule modulators (such as the activator ZLN005 and inhibitor SR18292).
What was found
The abstract reports no numerical findings or statistical data. It qualitatively describes that PGC-1α regulates cellular energy pathways—including thermogenesis, gluconeogenesis, and fatty acid oxidation—via dynamic nuclear receptor complexes, and that its stability and activity are controlled by post-translational modifications that present opportunities and structural challenges for small-molecule drug development in metabolic disease and oncology.
Why it matters
It consolidates current understanding of PGC-1α regulatory mechanisms and highlights emerging chemical probes that could facilitate targeted drug discovery for metabolic disorders and cancer.
Limits
This is a narrative review presenting mechanistic and preclinical concepts rather than primary experimental or clinical data. The abstract provides no quantitative effect sizes, comparative efficacy estimates, or human clinical data for the discussed small molecules.
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