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Promotes the Proliferation of Spermatogonial Stem Cells by Activating ERK Signaling

Overview
Journal Stem Cells Int
Publisher Wiley
Specialty Cell Biology
Date 2021 Feb 19
PMID 33603791
Citations 5
Authors
Affiliations
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Abstract

The future fertility of males with cancer may be irreversibly compromised by chemotherapy and/or radiotherapy. Spermatogonial stem cell transplantation is believed to be a way to restore fertility in men. However, the survival efficiency of transplanted cells is still low. Eukaryotic translation initiation factor 2 subunit 3 and structural gene Y-linked () located on the Y chromosome of male animals is a coding gene of eIF2 which mainly functions in translation initiation. Recently, the emerging role of in spermatogenesis has been emphasized in several studies. However, the underlying mechanism is still unclear. In addition, how functions in large animals remains largely unknown. In this study, we obtained the CDS sequence of the gene from the testis of dairy goats and found that this gene was highly expressed in the testis and was evolutionarily conserved among different species. Interestingly, overexpression of promoted the proliferation of spermatogonial stem cells of dairy goats by activating the ERK signaling pathway. In animal experiments, overexpressing promoted transplanted goat spermatogonial stem cells and produced more colonies after microinjection into the seminiferous tubules of infertile mice. In conclusion, our study highlights an undiscovered role of in dairy goat reproduction. This finding may provide an important basis for future works regarding male spermatogenic cell restoration and represent a major advance toward surrogate sires becoming a tool for disseminating and regenerating germplasm in all mammals.

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