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. 2023 Jan;30(1):258-269.
doi: 10.1007/s43032-022-00998-9. Epub 2022 Jun 23.

Female Infertility Is Associated with an Altered Expression Profile of Different Members of the Tachykinin Family in Human Granulosa Cells

Víctor Blasco  1   2 , Francisco M Pinto  1 , Ainhoa Fernández-Atucha  3 , Nicolás Prados Dodd  2   4   5 , Manuel Fernández-Sánchez  6   7   8   9 , Luz Candenas  1
Affiliations

Female Infertility Is Associated with an Altered Expression Profile of Different Members of the Tachykinin Family in Human Granulosa Cells

Víctor Blasco et al. Reprod Sci. 2023 Jan.

Abstract

Neurokinin B (NKB) and its cognate receptor, NK3R, play a key role in the regulation of reproduction. NKB belongs to the family of tachykinins, which also includes substance P and neurokinin A, both encoded by the by the gene TAC1, and hemokinin-1, encoded by the TAC4 gene. In addition to NK3R, tachykinin effects are mediated by NK1R and NK2R, encoded by the genes TACR1 and TACR2, respectively. The role of these other tachykinins and receptors in the regulation of women infertility is mainly unknown. We have analyzed the expression profile of TAC1, TAC4, TACR1, and TACR2 in mural granulosa and cumulus cells from women presenting different infertility etiologies, including polycystic ovarian syndrome, advanced maternal age, low ovarian response, and endometriosis. We also studied the expression of MME, the gene encoding neprilysin, the most important enzyme involved in tachykinin degradation. Our data show that TAC1, TAC4, TACR1, TACR2, and MME expression is dysregulated in a different manner depending on the etiology of women infertility. The abnormal expression of these tachykinins and their receptors might be involved in the decreased fertility of these patients, offering a new insight regarding the diagnosis and treatment of women infertility.

Keywords: Advanced maternal age; Endometriosis; Human granulosa cells; Polycystic ovarian syndrome; Tachykinins.

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