Level D· Preclinical EvidenceAnimal Study

Circ-Hipk3 in Adipose Derived Stem Cells Exosome Alleviates Myocardial Infarction Induced Myocardial Damage by Regulation miR-138-5p/Sirt1 Axis Mediated Autophagy.

Yang G., Nong D., Tang X., Tan L., Yang P., Ning H.

Animal Study on Cardiovascular Disease, Chronic Inflammation, published in Biochem Genet (2026) — summary generated from the PubMed abstract.

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Study type
Animal Study
Journal
Biochem Genet (2026)
Country
United States
Reported sample size
PMID
40696229
DOI
10.1007/s10528-025-11173-5

Abstract (original English)

Myocardial infarction (MI) is a major health problem and is the leading cause of death worldwide. Accumulation studies confirm that exosomes derived from stem cells have been shown to effectively repair MI injury-induced cardiomyocyte damage. However, the cardioprotective benefits of adipose tissue-derived mesenchymal stem cell (ADSC)-Exos remain unclear. This study aimed to investigate the protective effects of exosomes from ADSC on the hearts of MI-treated mice and to explore the underlying mechanisms. Cellular and molecular mechanisms were investigated using cultured ADSCs. On C57BL/6 J mice, we performed myocardial MI model. HMEC-1 was used to identify the regulatory mechanism. ELISA was used for inflammatory factor expression detection. Luciferase report analysis detection showed the relationship among miR-138-5p, Sirt1 and circ-Hipk3. ADSCs exosome treatment significantly alleviates MI induced myocardial damage by promotion autophagy and inhibits inflammatory response. Circ-Hipk3 play an important role in ADSCs exosome mediated protective effect on MI induced myocardial damage. Luciferase report analysis confirmed that miR-138-5p and SIRT1 were at circ-Hipk3 downstream. Downregulation SIRT1 or upregulation miR-138-5p reversed the regulation effect of circ-Hipk3 on autophagy and inflammatory factor expression. Overexpression circ-Hipk3 increased the protective effect of AD

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 comes from animal or laboratory studies and has not been confirmed in humans.

How we grade evidence
MicroRNAsAnimalsSirtuin 1Myocardial InfarctionExosomesMiceAutophagyMice, Inbred C57BLMesenchymal Stem CellsAdipose Tissue

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