Aquaporin 4-specific T cells in neuromyelitis optica exhibit a Th17 bias and recognize Clostridium ABC transporter.
Aquaporin 4-specific T cells in neuromyelitis optica exhibit a Th17 bias and recognize Clostridium ABC transporter.
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DOI:
10.1002/ana.23651
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发表时间:
2012-07
影响因子:
11.2
通讯作者:
Zamvil, Scott S.
中科院分区:
文献类型:
--
作者:
Varrin-Doyer, Michel;Spencer, Collin M.;Schulze-Topphoff, Ulf;Nelson, Patricia A.;Stroud, Robert M.;Cree, Bruce A. C.;Zamvil, Scott S.
Aquaporin 4 (AQP4)-specific autoantibodies in neuromyelitis optica (NMO) are immunoglobulin (Ig)G1, a T cell-dependent Ig subclass, indicating that AQP4-specific T cells participate in NMO pathogenesis. Our goal was to identify and characterize AQP4-specific T cells in NMO patients and healthy controls (HC). Peripheral blood T cells from NMO patients and HC were examined for recognition of AQP4 and production of proinflammatory cytokines. Monocytes were evaluated for production of T cell-polarizing cytokines and expression of costimulatory molecules. T cells from NMO patients and HC proliferated to intact AQP4 or AQP4 peptides (p11–30, p21–40, p61–80, p131–150, p156–170, p211–230, and p261–280). T cells from NMO patients demonstrated greater proliferation to AQP4 than those from HC, and responded most vigorously to p61–80, a naturally processed immunodominant determinant of intact AQP4. T cells were CD4+, and corresponding to association of NMO with human leukocyte antigen (HLA)-DRB1*0301 and DRB3, AQP4 p61–80-specific T cells were HLA-DR restricted. The T-cell epitope within AQP4 p61–80 was mapped to 63–76, which contains 10 residues with 90% homology to a sequence within Clostridium perfringens adenosine triphosphate-binding cassette (ABC) transporter permease. T cells from NMO patients proliferated to this homologous bacterial sequence, and cross-reactivity between it and self-AQP4 was observed, supporting molecular mimicry. In NMO, AQP4 p61–80-specific T cells exhibited Th17 polarization, and furthermore, monocytes produced more interleukin 6, a Th17-polarizing cytokine, and expressed elevated CD40 and CD80 costimulatory molecules, suggesting innate immunologic dysfunction. AQP4-specific T-cell responses are amplified in NMO, exhibit a Th17 bias, and display cross-reactivity to a protein of an indigenous intestinal bacterium, providing new perspectives for investigating NMO pathogenesis. ANN NEUROL 2012;
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影响因子:
11.2
作者:
Bennett, Jeffrey L.;Lam, Chiwah;Kalluri, Sudhakar Reddy;Saikali, Philippe;Bautista, Katherine;Dupree, Cecily;Glogowska, Magdalena;Case, David;Antel, Jack P.;Owens, Gregory P.;Gilden, Don;Nessler, Stefan;Stadelmann, Christine;Hemmer, Bernhard
通讯作者:
Hemmer, Bernhard
影响因子:
30.5
作者:
Acosta-Rodriguez, Eva V.;Napolitani, Giorgio;Sallusto, Federica
通讯作者:
Sallusto, Federica
影响因子:
16.8
作者:
Axtell RC;Raman C;Steinman L
通讯作者:
Steinman L
DOI:
10.1126/science.1198469
发表时间:
2011-01-21
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Atarashi K;Tanoue T;Shima T;Imaoka A;Kuwahara T;Momose Y;Cheng G;Yamasaki S;Saito T;Ohba Y;Taniguchi T;Takeda K;Hori S;Ivanov II;Umesaki Y;Itoh K;Honda K
通讯作者:
Honda K
影响因子:
--
作者:
Jacob, Anu;Weinshenker, Brian G.;Cree, Bruce A. C.
通讯作者:
Cree, Bruce A. C.