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020 ▼a 9781088384282
035 ▼a (MiAaPQ)AAI22616269
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 247004
0820 ▼a 614
1001 ▼a Zhou, You.
24510 ▼a Secretory IgA Enhances Gut B Cells Priming and Systemic IgG Responses Towards Commensals.
260 ▼a [S.l.]: ▼b Washington University in St. Louis., ▼c 2019.
260 1 ▼a Ann Arbor: ▼b ProQuest Dissertations & Theses, ▼c 2019.
300 ▼a 93 p.
500 ▼a Source: Dissertations Abstracts International, Volume: 81-05, Section: B.
500 ▼a Advisor: Hsieh, Chyi S.
5021 ▼a Thesis (Ph.D.)--Washington University in St. Louis, 2019.
506 ▼a This item must not be sold to any third party vendors.
520 ▼a IgA is the primary antibody response at mucosal surfaces and is reported to inhibit adaptive immune responses against gut bacteria. Here, we utilize an in vitro system to expand and screen IgA memory B cells for their ability to recognize gut bacteria in the context of secretory IgA (sIgA) deficiency in polymeric Ig receptor (Pigr-/-) mice. Contrary to the prevailing hypothesis that IgA provides an immune exclusionary function, we found that mice lacking sIgA showed decreased anti-bacterial IgA specificities as assessed using flow cytometry. IgA B cell responses against certain taxa such as those of order Bacteriodales showed greater dependence on sIgA. Notably, sIgA also facilitated the generation of anti-bacterial IgG B cells, which provided increased resistance to intraperitoneal infection by commensal bacteria. Together, these data suggest that sIgA can facilitate the immune priming of gut commensals to increase anti-bacterial IgA and IgG and enhance immunity.
590 ▼a School code: 0252.
650 4 ▼a Immunology.
650 4 ▼a Biology.
650 4 ▼a Microbiology.
650 4 ▼a Physiology.
650 4 ▼a Health sciences.
690 ▼a 0982
690 ▼a 0306
690 ▼a 0410
690 ▼a 0566
690 ▼a 0719
71020 ▼a Washington University in St. Louis. ▼b Biology & Biomedical Sciences (Immunology).
7730 ▼t Dissertations Abstracts International ▼g 81-05B.
773 ▼t Dissertation Abstract International
790 ▼a 0252
791 ▼a Ph.D.
792 ▼a 2019
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15493371 ▼n KERIS ▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다.
980 ▼a 202002 ▼f 2020
990 ▼a ***1008102
991 ▼a E-BOOK