Abstract:
:Here, we established CD4(+)αβTh1 clones specific for rat vascular smooth muscle antigen (VSMAg) that induced vasculitis lesions in the lungs of MRL/Mp-Fas(+/+) mice following adoptive transfer. Six different T cell clones, MV1b1 (Vβ1), MV1b4 (Vβ4), MV1b8.3 (Vβ8.3), MV1b61 (Vβ6), MV1b62 (Vβ6), and MV1b63 (Vβ6), were isolated from the MV1 T cell line from the regional lymph nodes of immunized MRL/Mp-Fas(+/+) mice; the three (Vβ6) clones had unique CDR3 amino acid sequences. Following stimulation with VSMAg-pulsed antigen presenting cells, MV1b61 and MV1b62 failed to secrete interferon-γ and tumor necrosis factor-α, although the other four clones secreted high levels of both cytokines. In adoptive transfer experiments, MV1b61 and MV1b62 did not induce organ involvement including pulmonary vasculitis. In contrast, MV1b1, MV1b4, MV1b8.3, and MV1b63 induced perivascular mononuclear cell infiltration in pulmonary small arteries. These clones may provide useful tools for investigating the underlying mechanisms of vasculitis syndromes and for developing therapeutic strategies.
journal_name
Cell Immunoljournal_title
Cellular immunologyauthors
Fujita Y,Fujii T,Shimizu H,Sato T,Nakamura T,Iwao H,Nakajima A,Miki M,Sakai T,Kawanami T,Tanaka M,Masaki Y,Fukushima T,Okazaki T,Umehara H,Mimori Tdoi
10.1016/j.cellimm.2016.03.004subject
Has Abstractpub_date
2016-05-01 00:00:00pages
50-4eissn
0008-8749issn
1090-2163pii
S0008-8749(16)30013-2journal_volume
303pub_type
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