Slc22a7, also known as organic anion transporter 2 (OAT2), is a member of the solute carrier superfamily. It plays a crucial role in the transport of various substances, including organic anions, cyclic nucleotides (such as cGMP), nicotinic acid, and creatinine [3,4,5,6]. It is involved in multiple biological processes and pathways, like lipid metabolism, which is associated with its role in diseases such as diabetic kidney disease [1].

In the study of diabetic kidney disease, through transcriptome sequencing in mice, it was found that the mRNA expression level of Slc22a7 declined in the kidney tissues of DKD mice compared with control mice, suggesting its potential role in lipid metabolism and the PPAR signaling pathway in the context of this disease [1]. Also, in Chinese Holstein cows, polymorphisms in Slc22a7 were detected, and they were significantly associated with milk production traits, indicating its possible role in lipid metabolism-related processes in cows [2].

In conclusion, Slc22a7 is an important transporter gene involved in the transport of various substances and plays a role in lipid-related biological processes. Its dysregulation is associated with diseases like diabetic kidney disease, and its genetic variations are related to milk production traits in cows. Research on Slc22a7 using mouse models has provided insights into its function in disease-related biological processes, contributing to a better understanding of disease mechanisms and potentially new treatment strategies for related diseases.