Abstract
Our previous study documented the expression of Mta1 during spermatogenesis. Here, we present evidence for a possible involvement of Mta1 in the regulation of testicular function, possibly by interacting with p53. A notable decrease of Mta1 expression was revealed at postsurgical day 6, consistent with the previously reported upregualtion of p53 in mouse cryptorchidism. Furthermore, in vitro over-expression of Mta1 could remarkably elevate the resistance capability of spermatogenic tumor cells against heat-induced apoptosis with a marked impairment of p53 expression. These findings indicate that Mta1 may operate as a negative modifier of apoptosis by interacting with p53 during gametogenesis.
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