Key result
A network comprised of miR-15b and miR-29a is involved in VEGFA pathway regulation in thymus adipose tissue from elderly subjects with ischemic cardiomyopathy.
Why the study?
Thymus adipose tissue exhibits enhanced angiogenic properties in the elderly, and identifying its microRNA regulatory network could inform angiogenic therapies for ischemic tissues after coronary surgery.
Hypothesis-generating for VEGFA regulation in ischemic cardiomyopathy; leaves open clinical relevance pending validation.
Adult human thymus degenerates into adipose tissue (TAT). In contrast to subcutaneous adipose tissue (SAT), TAT has been reported to exhibit enhanced angiogenic properties in elderly people. We have previously shown that vascular endothelial growth factor A (VEGFA) is the most abundant angiogenic growth factor in TAT of patients with ischemic cardiomyopathy (IC), and that VEGFA levels are increased in elderly (>70 years) compared with middle-aged patients. This makes TAT a promising candidate for angiogenic therapies and the regeneration of ischemic tissues following coronary surgery. MicroRNAs (miRNAs) have emerged as attractive therapeutic targets, especially those that regulate angiogenic processes. The study's purpose is to determine the miRNA network associated with both VEGFA pathway regulation and enrichment of age-linked angiogenesis in the TAT.
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Gentile et al. (2023) studied Ischemic cardiomyopathy. miR-15b and miR-29a network was evaluated on VEGFA pathway regulation and enrichment of age-linked angiogenesis in thymus adipose tissue. A network comprised of miR-15b and miR-29a is involved in VEGFA pathway regulation in thymus adipose tissue from elderly subjects with ischemic cardiomyopathy.
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