The Sertoli cell -: A hormonal target and "Super" nurse for germ cells that determines testicular size

被引:179
作者
Petersen, Cecilia [1 ]
Soder, Olle [1 ]
机构
[1] Astrid Lindgren Childrens Hosp, Karolinska Inst, Dept Women & Child Hlth, Paediat Endocrinol Unit, Stockholm, Sweden
关键词
Sertoli; testis; testicular dysgenesis syndrome; endocrine; paracrine;
D O I
10.1159/000094142
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The somatic Sertoli cell plays an essential role in embryonic determination of male somatic sex and in spermatogenesis during adult life. One individual Sertoli cell supplies a clone of developing germ cells with nutrients and growth factors and it is well established that the number of Sertoli cells present is closely correlated to both testicular size and sperm output. Sertoli cells continue to proliferate and differentiate until the beginning of puberty, when they cease dividing and start nursing the germ cells. At this point in time, the future capacity of the testis for sperm production has thus been determined. Prior to puberty the Sertoli cells are immature and differ considerably with respect to morphology and biochemical activity from the mature cell. The several investigations that have focused on hormonal and paracrine regulation of the functions of the mature cell are reviewed here, but the mechanisms underlying the maturation and general maintenance of well-functioning Sertoli cells remain obscure. An alarming decline in male reproductive health has been observed in several Western countries during recent decades. Disturbance of Sertoli cell differentiation is thought to be involved in the pathogenesis of both a poor sperm count and testicular cancer. It is speculated that environmental agents that disrupt the estrogenic/androgenic balance in the testis may play a role in this connection. Copyright (c) 2006 S. Karger AG, Basel.
引用
收藏
页码:153 / 161
页数:9
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