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Extracellular matrix components and testicular peritubular cells influence the rate and pattern of Sertoli cell migration in vitro.

Abstract：

:We report the patterns of migration of Sertoli cells plated on specific substrata, and the influences of testicular peritubular cells on these processes. Data presented indicate that while peritubular cells readily spread when explanted onto Type I collagen, Sertoli cells do not. A delay of 4 to 6 days occurs after Sertoli cells are plated before they begin to migrate randomly to form plaque-like monolayers on Type I collagen. These processes are dependent upon the synthesis and subsequent deposition of laminin and/or Type IV collagen by Sertoli cells, and are independent of fibronectin. A different behavior occurs when reconstituted mixtures of purified Sertoli cells and pertiubular cells are sparsely plated onto Type I collagen. Peritubular cells rapidly spread to form chains of cells between Sertoli cell aggregates. Sertoli cells then migrate on the surfaces of the peritubular cells, culminating in the formation of cable-like structures between aggregates. Evidence is presented that the Sertoli cell migration to form "cables" under these conditions is dependent upon fibronectin synthesized by peritubular cells, and is independent of the presence of laminin or Type IV collagen. We discuss the possible relevance of these data to the role which precursors of peritubular cells may play in determining the behavior of Sertoli cell precursors in vivo during tubulogenesis, or in the remodelling of the seminiferous tubule which occurs during different stages of the cycle of the seminiferous epithelium in spermatogenesis.

journal_name

Dev Biol

journal_title

Developmental biology

authors

Tung PS,Fritz IB

doi

10.1016/0012-1606(86)90114-4

subject

Has Abstract

pub_date

1986-01-01 00:00:00

pages

119-34

issue

1

eissn

0012-1606

issn

1095-564X

pii

0012-1606(86)90114-4

journal_volume

113

pub_type

杂志文章

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