Abstract:
:Autoimmune regulator's (AIRE) best characterized role is in the generation immunological tolerance, but it is also involved in many other processes such as spermatogenesis. Loss-of-function mutations in AIRE cause a disease called autoimmune polyendocrinopathy, candidiasis and ectodermal dystrophy (APECED; also called autoimmune polyendocrinopathy syndrome type 1, APS-1) that is dominated by various autoimmune manifestations, mainly endocrinopathies. Both patients with APECED and Aire(-/-) mice suffer from varying levels of infertility, but it is not clear if it is a result of an autoimmune tissue damage or more of a developmental defect. In this study, we wanted to resolve whether or not the reduced fertility of Aire(-/-) mice is dependent on the adaptive immune system and therefore a manifestation of autoimmunity in these mice. We generated lymphopenic mice without Aire expression that were devoid of the autoimmune manifestations previously reported in immunocompetent Aire(-/-) mice. These Aire(-/-) Rag1(-/-) mice regained full fertility. This confirms that the development of infertility in Aire(-/-) mice requires a functional adaptive immune system. We also show that only the male Aire(-/-) mice are subfertile, whereas Aire(-/-) females produce litters normally. Moreover, the male subfertility can be adoptively transferred with lymphocytes from Aire(-/-) donor mice to previously fertile lymphopenic Aire(-/-) recipients. Our data show that subfertility in Aire(-/-) mice is dependent on a functional adaptive immune system thus confirming its autoimmune aetiology.
journal_name
Scand J Immunoljournal_title
Scandinavian journal of immunologyauthors
Kekäläinen E,Pöntynen N,Meri S,Arstila TP,Jarva Hdoi
10.1111/sji.12280subject
Has Abstractpub_date
2015-05-01 00:00:00pages
298-304issue
5eissn
0300-9475issn
1365-3083journal_volume
81pub_type
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