AXIN1 and atrial fibrillation: While most of these authors highlight that these microRNAs can constitute promising biomarkers to assess AF in patients, there are limited mechanistic insights into the functional role of these microRNAs in AF pathophysiology, as only miR-124-3p has been reported to modulate the Wnt/β-catenin signaling pathway via AXIN1 in CFs [283] (Table 4).