Oip5os1, also known as 1700020I14Rik, OIP5-AS1, and Cyrano, is a long non-coding RNA (lncRNA) [4]. It is broadly expressed across multiple tissues, with significant enrichment in the nervous system, skeletal muscle, and striated muscles [4]. It has regulatory functions in normal cellular processes such as cell proliferation and survival [4].

In male mice with diabetes, deletion of Oip5os1 leads to left atrial dysfunction, myopathy, anesthesia intolerance, and premature death. This is associated with a reduction in the metabolic regulator ERRalpha and a trend for a reduction in Serca2a in the atria of knockout (KO) mice compared to wild-type (WT) mice [1]. In chronic unpredictable mild stress-induced mice, Oip5os1 is involved in the circ_0008405/miR-25-3p/Gata2 network, and geniposide can regulate this network to alleviate depression-like behaviors [2]. In pre-eclampsia (PE), PFOS exposure downregulates Oip5os1, and through the Oip5os1/miR-155/Rnd3 axis, it impairs trophoblast proliferation and migration [3].

In conclusion, Oip5os1 plays important roles in normal cellular processes and is involved in various disease conditions such as diabetes-related atrial dysfunction, depression-like behaviors, and PE. The KO mouse models in these studies have been crucial in revealing the functions of Oip5os1 in these specific biological processes and disease states, providing insights into potential therapeutic targets. [1-3].