Activating PIK3CA mutations in adipose-derived stem cells drive mutant-like phenotypes of wild-type cells in macrodactyly.
Zhang X., Yin Y., Wang Z., Jiang Y., Yu A., Dai X.
Laboratory Study, published in Cell Death Dis (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
- Laboratory Study
- Journal
- Cell Death Dis (2025)
- Country
- England
- Reported sample size
- —
- Source database
- PubMed
- PMID
- 40595500
- PMCID
- PMC12217521
- DOI
- 10.1038/s41419-025-07795-7
- Citations
- 1
Abstract (original English)
Macrodactyly is a congenital overgrowth disorder characterized by pathological adipose proliferation due to PIK3CA mutations in adipose-derived stem cells (ADSCs). Due to the somatic mosaicism, the affected tissues comprise a mixture of mutant and wild-type cells. However, how PIK3CA mutated ADSCs influence adjacent wild-type cells in macrodactyly remains poorly understood. In this study, we utilized coculture systems to investigate the effects of macrodactylous adipose-derived stem cells (Mac-ADSCs) on normal ADSCs, fibroblasts (FBs), and vascular endothelial cells (VECs). Our study demonstrated that activating PIK3CA mutations in Mac-ADSCs promotes the proliferation, migration, invasion, adipogenesis, and angiogenesis of wild-type ADSCs, FBs and VECs. Furthermore, using RNA sequencing and cytokine arrays, we revealed that these effects are primarily mediated by various secreted paracrine cytokines. These findings demonstrated that activating PIK3CA mutation alters the paracrine characteristics of Mac-ADSCs and reshapes the microenvironment of macrodactyly, driving adjacent wild-type cells to exhibit mutant-like phenotypes. Targeting PIK3CA with BYL-719 could influence the progression of macrodactyly by inhibiting the paracrine signaling of Mac-ADSCs.
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.
How we grade evidenceBrowse all related research
Filter the research library by this study's title keywords, author, or publication year.