Abstract
The HER2 messenger RNA (mRNA) was the most abundant among the erb type-1 tyrosine kinase receptors mRNA in human testis and was statistically significantly decreased in impaired spermatogenesis. Testicular HER2 was tyrosine phosphorylated and strongly expressed in spermatogonia, early spermatocytes, elongating/elongated spermatids, Sertoli cells, Leydig cells, and peritubular cells, suggesting that activated HER2 participates in mitosis and meiotic entry of germ cells, spermiogenesis, and steroidogenesis via mediating the epidermal growth factor-growth factor signaling.
Copyright © 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adult
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Aged
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Azoospermia / genetics
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Azoospermia / metabolism*
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Azoospermia / pathology
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Azoospermia / physiopathology
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Biopsy
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Blotting, Western
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Humans
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Immunohistochemistry
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Leydig Cells / chemistry
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Male
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Middle Aged
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Phosphorylation
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RNA, Messenger / analysis
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Receptor, ErbB-2 / analysis*
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Receptor, ErbB-2 / genetics
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Republic of Korea
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Reverse Transcriptase Polymerase Chain Reaction
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Sertoli Cells / chemistry
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Spermatids / chemistry
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Spermatocytes / chemistry
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Spermatogenesis
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Spermatogonia / chemistry
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Testis / chemistry*
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Testis / pathology
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Testis / physiopathology
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Tyrosine
Substances
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RNA, Messenger
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Tyrosine
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ERBB2 protein, human
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Receptor, ErbB-2