Abstract
The onset of spermatogenesis at puberty represents unique challenges to the immune system as neoantigens of meiotic and haploid germ cells (GC) appear long after the formation of systemic self tolerance. The protection of GC from autoimmune attack, the “immune privilege” of the testis, was originally attributed both to the existence of the blood-testis barrier and to a failure of the testicular immune system to respond to antigens. Recent research has shown that the testis is by no means ignorant, and can mount a robust immune deviant response that can protect the gonad from damaging inflammatory responses to pathogens. Moreover, an excessive immune response can lead to inflammatory male factor infertility. The mechanisms controlling immune privilege seem to overlap with those controlling tolerance to transplantation antigens, autoantigens, and cancer cells. They appear to involve cellular processes, androgens, and a delicate balance of immunomodulatory molecules such as cytokines and chemokines.
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Fijak, M., Bhushan, S., Meinhardt, A. (2009). The Immune Privilege of the Testis. In: Krause, W., Naz, R. (eds) Immune Infertility. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01379-9_5
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DOI: https://doi.org/10.1007/978-3-642-01379-9_5
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