Abstract Title:

Allicin attenuates calcium oxalate crystal deposition in the rat kidney by regulating gap junction function.

Abstract Source:

J Cell Physiol. 2019 Jun ;234(6):9640-9651. Epub 2018 Oct 30. PMID: 30378099

Abstract Author(s):

Yongchang Lai, Xiongfa Liang, Fangling Zhong, Weizhou Wu, Tao Zeng, Jian Huang, Xiaolu Duan, Shujue Li, Guohua Zeng, Wenqi Wu

Article Affiliation:

Yongchang Lai


Renal calculus is a global common urological disease that is closely related to crystal adhesion and renal tubular epithelial cell impairment. Gap junctions (GJs) and their components (connexins and Cxs) are involved in various pathophysiology processes, but their roles in renal calculi progression are not well defined. Our previous RNA microarray analysis suggests that GJs are one of the key predicted pathways involved in the renal calcium oxalate (CaOx) crystal rat model. In the current study, we found that the Cx43 and Cx32 expression and the GJ function decreased significantly after stimulation with CaOx or sodium oxalate (NaOx) in NRK-52E, MDCK, and HK-2 cells, and Cx43 expression also decreased in renal tissues in renal CaOx crystal model rats. Inhibition of Cx43 in NRK-52E cells by small interference RNA significantly increased the CD44 and androgen receptor expression, and the adhesion between CaOx crystals and cells, which were consistent with the function of GJ inhibitors. On the other hand, after GJ function and Cx43 expression were increased by allicin, diallyl disulfide, or diallyl trisulfide, the impairment of NRK-52E cells by NaOx or other GJ inhibitors and the adhesion between CaOx crystals and renal cells decreased significantly. Furthermore, allicin also increased Cx43 expression and inhibited crystal deposition in rat kidneys. Taken together, our results provide a basis that GJs and Cx43 may participate in renal CaOx stone progression and that allicin, together with its analogues, could be potential drugs for renal calculus precaution.

Study Type : Animal Study
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