PIK3CG and Myocardial fibrosis: Examination of circRNA ceRNA networks in myocardial fibrosis further elucidates that differentially expressed circRNAs modulate CFs proliferation and differentiation by regulating pathways such as PI3K/AKT and TGF-β, underscoring their essential role in the progression of cardiac fibrosis (Gu et al., 2020).