Genome‐wide analysis of the mouse LIM gene family reveals its roles in regulating pathological cardiac hypertrophy

Abstract

LIM‐domain proteins have been shown to be associated with heart development and diseases. Systematic studies of LIM family members at the genome‐wide level, which are crucial to further understand their functions in cardiac hypertrophy, are currently lacking. Here, 70 LIM genes were identified and characterised in mice. The expression patterns of LIM genes differ greatly during cardiac development and in the case of hypertrophy. Both Crip2 and Xirp2 are differentially expressed in cardiac hypertrophy and during heart failure. In addition, the hypertrophic state of cardiomyocytes is controlled by the relative expression levels of Crip2 and Xirp2. This study provides a foundation for further understanding of the special roles of LIM proteins in mammalian cardiac development and hypertrophy.

Biomarkers of heart failure: advances in omics studies

“…In particular, XIRP2 shows differential expression during cardiac hypertrophy and HF. 85 Regarding the extracellular matrix, the levels of non-collagen proteins periostin and biglycan increase over time. Previous studies have shown that β-adrenergic receptor (β-AR) stimulation is the primary mechanism regulating cardiac output.…”