hsa-mir-504: Hsa-mir-504 is a known pre-miRNA that has been experimentally verified and is listed in miRBase V19 [PMC4670854]. It has been found to be expressed at lower levels than miR-1231 in microarray analysis [PMC6132976]. Hsa-mir-504 has been shown to be involved in the regulation of apoptosis through its coordination with hsa-miR-125a and the regulation of BAK1 and BCL2 genes [PMC4363532]. It has also been discovered that hsa-mir-504 is closely related to prostate cancer [PMC8024646]. Additionally, hsa-mir-504 has been found to function as a tumor suppressor in gastric cancer by acting as a sponge for hsa_circ_0005699, which downregulates MCM8 and NCAPD2 expression [PMC7859334]. Hsa-mir-504 is part of a circRNA-miRNA-hub_gene network that includes other miRNAs such as hsa-miR-22, hsa-miR-328, and hsa-miR-1306 [PMC6857072]. It has also been shown that the expression of hsa-mir-504 is regulated by progesterone support in luteal phase [PMC3462109]. Hsa-mir-504 is involved in the regulation of ribosome biogenesis through its interaction with FGF13 1A and TP53 genes, promoting cell survival in models of oncogenic escape [PMC7200637]. Furthermore, it has been used as a probe for miRNA detection along with other miRNAs such as hsa -miR 142 and hsa -miR 335 [PMC4699463].