Pituitary adenylate cyclase-activating peptide (PACAP) and its receptors in Mus musculus testis

Gen Comp Endocrinol. 2020 Jan 15:286:113297. doi: 10.1016/j.ygcen.2019.113297. Epub 2019 Oct 8.

Abstract

To enlighten the involvement of PACAP/receptors system in the control of mammal testis, we investigated the expression of PACAP and the localization of PACAP and its receptors PAC1, VPAC1, and VPAC2 in the testis of Mus musculus. By molecular and immunohistochemical investigations, we highlighted that PACAP and its receptors are widely represented in germ cells of Mus testis, particularly in spermatocytes I, spermatids, and spermatozoa, strongly suggesting their involvement in spermatogenesis process. Moreover, for the first time in the adult mouse testis we highlighted that PACAP is present within Leydig cells, as PACAP receptors, confirming its involvement in the control of steroidogenesis in mouse.

Keywords: Male gametogenesis control; Mus musculus; PACAP receptors; Pituitary adenylate cyclase-activating peptide (PACAP).

MeSH terms

  • Animals
  • Male
  • Mice
  • Pituitary Adenylate Cyclase-Activating Polypeptide / metabolism*
  • Testis / metabolism*

Substances

  • Pituitary Adenylate Cyclase-Activating Polypeptide