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Follicle-stimulating hormone (FSH) is the main regulator of spermatogenesis and plays a key role in the development and function of the reproductive system. To assess the effects of different FSH preparations in combination with testosterone on porcine pre-pubertal Sertoli cells, we performed Real Time PCR analysis of AMH, inhibin B and FSH-r, Western blotting analysis of AKT-posphoAKT, ERK1/2-posphoERK1/2, ELISA assay for AMH and inhibin B and a high-throughput proteomic analysis.We observed that all three preparations induced a reduction of AMH in terms of mRNA and secreted protein and, an increase of inhibin B in terms of mRNA in all the formulations while, only α-follitropin induced an increase of inhibin B secreted in the culture medium. Proteomic analysis permitted us to identify 46 secreted proteins.Of those, the SPARC protein was down-regulated after the treatment with testosterone associated with α-follitropin, β-follitropin and urofollitropin (vs group stimulated with T alone). 11 proteins were up-regulated by the different FSH preparations. In detail, Hemoglobin subunit beta, TPA and TPI have been observed to be up-regulated by stimulation with testosterone in addition with α-follitropin or with β-follitropin and or with urofollitropin. All preparations induced an increase in the secreted inhibin beta A chain, but in the medium after stimulation with urofollitropin we observed an higher increase in the levels of this protein. β-follitropin, associated with testosterone, specifically induces an up-regulation of 8 specific secreted proteins.Our study, showing that the three FSH preparations were associated with different effects, could offer the opportunity to shed light inside applications to personalized reproductive medicine.

SAT-035 In Vitro Effect of Different Follicle-Stimulating Hormone Preparations on Sertoli Cells