Cellular events that occur across the seminiferous epithelium in the mammalian testis during spermatogenesis are tightly coordinated by biologically active peptides released from laminin chains. Laminin-γ3 domain IV is released at the apical ectoplasmic specialization during spermiation and mediates restructuring of the blood-testis barrier, which facilitates the transit of preleptotene spermat...

BACKGROUND In co-cultures of pachytene spermatocytes with Sertoli cells, beta-NGF regulates the second meiotic division by blocking secondary spermatocytes in metaphase (metaphase II), and thereby lowers round spermatid formation. In vertebrates, mature oocytes are arrested at metaphase II until fertilization, because of the presence of cytostatic factor (CSF) in their cytoplasm. By analogy, we...

Peritubular cells that surround the seminiferous tubules have been shown to produce a paracrine factor, termed P-Mod-S, that has dramatic effects on Sertoli cell function in vitro and is postulated to be important in the control of testicular function. The current study was designed to determine whether P-Mod-S has the ability to regulate Sertoli cell function during pubertal development. Serto...

One of the newest methods to reduce cerebral ischemia damages is cell therapy. The aim of this study is to evaluate the effect of Sertoli cell transplantation on ischemia-induced injuries in animal models of stroke. Rats were divided into four groups: transplant+ischemia, ischemia, sham, and control. Sertoli cells were separated from the other testis of rats and cultured. Unilateral Sertoli cel...

Correspondence to: Dolores D. Mruk and C. Yan Cheng; Email: [email protected] and [email protected] Submitted: 10/01/12; Accepted: 11/01/12 DOI: http://dx.doi.org/10.4161/spmg.22790 In response to the Letter to the Editor from Dr. Shailendra Kapoor with regard to a paper previously published on testin in Spermatogenesis, we wish to clarify some misinformation on this prot...

The functional influence of cell proteoglycan (PG) undersulfation on estradiol synthesis by immature rat Sertoli cell cultures was investigated by using sodium chlorate, an inhibitor of the active sulfate donor for sulfotransferases. The addition of sodium chlorate to 20-day-old rat Sertoli cell cultures abolished [35S]-sulfate incorporation into neosynthesized PG and consequently reduced the r...

The major herbicide used worldwide, Roundup, is a glyphosate-based pesticide with adjuvants. Glyphosate, its active ingredient in plants and its main metabolite (AMPA) are among the first contaminants of surface waters. Roundup is being used increasingly in particular on genetically modified plants grown for food and feed that contain its residues. Here we tested glyphosate and its formulation ...