Proliferation of sertoli cells in fetal and postnatal rats: A quantitative autoradiographic study

After injection of [3H]-1,25(OH)2-vitamin D3 (soltriol), nuclear labeling is found in Sertoli cells of testes, being highest at the stage of spermiosis, in epithelium of efferent ductules and caput epididymidis and in connective tissue cells of epididymis, in lamina propria and muscular sheath of deferent duct, and in epithelium and muscular sheath of dorsal and ventral prostate of the mouse. This labeling pattern is characteristic for [3H]-soltriol and differs from that for [3H]-dihydrotestosterone and [3H]-estradiol, although with overlap. The nuclear labeling with [3H]-soltriol suggests an action of the hormone on certain processes during spermatogenesis, on sperm maturation, on epididymal fluid resorption, and on secretion and transport of spermatozoa.

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AUTORADIOGRAPHIC STUDY OF LYSINE AND ARGININE INCORPORATION STIMULATED BY FOLLICLE-STIMULATING HORMONE IN THE MOUSE TESTIS IN VIVO

Journal of Endocrinology ◽

10.1677/joe.0.0840043 ◽

1980 ◽

Vol 84 (1) ◽

pp. 43-48 ◽

Cited By ~ 1

Author(s):

A. G. DAVIES ◽

N. R. LAWRENCE

Keyword(s):

Sertoli Cells ◽

Follicle Stimulating Hormone ◽

Autoradiographic Study ◽

Mouse Testis ◽

Paraffin Wax ◽

Germinal Cell ◽

Adult Mice ◽

Silver Grains ◽

Stimulating Hormone

Hypophysectomized adult mice were given injections of highly purified FSH 12 h before killing, and of tritiated lysine or arginine 2 h before killing. Autoradiographs were prepared from paraffin wax sections of testes. Treatment with FSH increased the density of silver grains over the nuclei of the Sertoli cells and of all types of germinal cell except the early spermatids. The stimulatory effect of FSH on incorporation of both lysine and arginine was most marked in the nuclei of preleptotene primary spermatocytes. The ratio of arginine to lysine incorporation was greater in spermatids undergoing nuclear elongation than in other types of cell.

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Freeze-etch observations on the tight junctions of sertoli cells grown in organ culture with FSH

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010008256x ◽

1978 ◽

Vol 36 (2) ◽

pp. 340-341

Author(s):

Rita Meyer ◽

Zoltan Posalaky ◽

Dennis Mcginley

Keyword(s):

Organ Culture ◽

Tight Junctions ◽

Sertoli Cell ◽

Germ Cells ◽

Sertoli Cells ◽

Barrier Function ◽

Cell Junction ◽

Intramembranous Particles ◽

Junctional Complexes ◽

Oriented Parallel

The Sertoli cell tight junctional complexes have been shown to be the most important structural counterpart of the physiological blood-testis barrier. In freeze etch replicas they consist of extensive rows of intramembranous particles which are not only oriented parallel to one another, but to the myoid layer as well. Thus the occluding complex has both an internal and an overall orientation. However, this overall orientation to the myoid layer does not seem to be necessary to its barrier function. The 20 day old rat has extensive parallel tight junctions which are not oriented with respect to the myoid layer, and yet they are inpenetrable by lanthanum. The mechanism(s) for the control of Sertoli cell junction development and orientation has not been established, although such factors as the presence or absence of germ cells, and/or hormones, especially FSH have been implicated.

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Annulate lamellae in the Sertoli cells of guinea pig testis after unilateral torsion of the spermatic cord

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100111094 ◽

1984 ◽

Vol 42 ◽

pp. 196-197

Author(s):

J. Chakraborty ◽

A. P. Sinha Hikim ◽

J. S. Jhunjhunwala

Keyword(s):

Sertoli Cells ◽

Guinea Pigs ◽

Spermatic Cord ◽

Present Report ◽

Cell Types ◽

Annulate Lamellae ◽

Spermatogenic Cells ◽

Electron Microscopic ◽

Structural Details ◽

First Time

Although the presence of annulate lamellae was noted in many cell types, including the rat spermatogenic cells, this structure was never reported in the Sertoli cells of any rodent species. The present report is based on a part of our project on the effect of torsion of the spermatic cord to the contralateral testis. This paper describes for the first time, the fine structural details of the annulate lamellae in the Sertoli cells of damaged testis from guinea pigs.One side of the spermatic cord of each of six Hartly strain adult guinea pigs was surgically twisted (540°) under pentobarbital anesthesia (1). Four months after induction of torsion, animals were sacrificed, testes were excised and processed for the light and electron microscopic investigations. In the damaged testis, the majority of seminiferous tubule contained a layer of Sertoli cells with occasional spermatogonia (Fig. 1). Nuclei of these Sertoli cells were highly pleomorphic and contained small chromatinic clumps adjacent to the inner aspect of the nuclear envelope (Fig. 2).

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