Association of the ubiquitin specific peptidase 9X -linked and Afadin expression patterns with sexual maturation in boar testis.
JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2021;
63:977-983. [PMID:
34796341 PMCID:
PMC8564299 DOI:
10.5187/jast.2021.e86]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/18/2021] [Accepted: 06/30/2021] [Indexed: 11/20/2022]
Abstract
Closely correlated expression patterns between ubiquitin specific peptidase
9X-linked (USP9X) and adherens junction formation factor (Afadin) in mouse
testis development suggests that Usp9x regulates the deubiquitination of Af-6
(also known as Afadin, AFDN), and subsequently, the cell adhesion dynamics
during gametogenesis. However, this relationship has not yet been tested in
other domestic animals. The study was examined the temporal and spatial
expression patterns of porcine USP9X and AFDN from the pre-pubertal to adult
stages using real time-PCR and immunohistochemistry. Furthermore, we detected
the transcripts of USP9X and AFDN in the testis of 1-, 6- and 12-months old
boar, respectively. USP9X and AFDN were found to have similar expressions
patterns, with basal expression after 1 month followed by a significant
up-regulation from 6 months (puberty) onwards. In addition, neither the AFDN or
USP9X proteins were detected in spermatogenic cells but they were expressed in
the leydig cells and sertoli cells. USP9X was detected around the basal lamina
during pre-puberty, and predominantly expressed in the leydig cells at puberty.
Finally, in adult testis, USP9X was increased at the sertoli cell-cell interface
and the sertoli cell-spermatid interface. In summary, closely correlated
expression patterns between USP9X and AFDN in boar testis supports the previous
findings in mice. Furthermore, the junction connections between the sertoli
cells may be regulated by the ubiquitination process mediated via USP9X.
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