PPARγ acetylation governs mammary adenocarcinoma tumor growth via acetylated residues that determine DNA sequence-specific binding.
Tian L., Jiao X., Wang C., Li D., Ertel A., Achinger-Kawecka J.
Animal Study, published in Oncogene (2025) — summary generated from the PubMed abstract.
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
- Level A · Stronger Clinical Evidence
- Level B · Emerging clinical evidence with positive signals
- Level C · Early human research exploring benefits
- Level D · Scientific groundwork from lab and animal studies
- Emerging · Emerging topic under active research
This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.
- Study type
- Animal Study
- Journal
- Oncogene (2025)
- Country
- England
- Reported sample size
- —
- Source database
- PubMed
- PMID
- 40715464
- DOI
- 10.1038/s41388-025-03492-z
Abstract (original English)
Peroxisome proliferator-activated receptor γ (PPARγ), which is expressed in a variety of malignancies, governs biological functions through transcriptional programs. Defining the molecular mechanisms governing the selection of canonical versus non-canonical PPARγ binding sequences may provide the opportunity to design regulators with distinct functions and side effects. Acetylation at K268/293 in mouse Pparγ2 participates in the regulation of adipose tissue differentiation, and the conserved lysine residues (K154/155) in mouse Pparγ1 governs lipogenesis in breast cancer cells. Herein, the PPARγ1 acetylated residues K154/155 were shown to be essential for oncogenic ErbB2 driven breast cancer growth and mammary tumor stem cell expansion in vivo. The induction of transcriptional modules governing growth factor signaling, lipogenesis, cellular apoptosis, and stem cell expansion were dependent upon K154/155. The acetylation status of the K154/155 residues determined the selection of genome-wide DNA binding sites, altering the selection from canonical to non-canonical (C/EBP) DNA sequence-specific binding. The gene signature reflecting the acetylation-dependent genomic occupancy in lipogenesis provided predictive value in survival outcomes of ErbB2 + breast cancer. The Pparγ1 acetylation site is critical for ErbB2-induced breast cancer tumor growth and may represent a relevant target
What this study does not prove
- • This study does not prove SVF is an approved treatment or a replacement for standard care.
- • This is preclinical work; animal or laboratory results cannot be applied to humans.
Evidence level
Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.
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