Downloads: 536

Files in This Item:
File Description SizeFormat 
j.jaut.2009.06.001.pdf543.92 kBAdobe PDFView/Open
Title: Vaccination with autoreactive CD4+Th1 clones in lupus-prone MRL/Mp-Faslpr/lpr mice
Authors: Fujii, Takao  KAKEN_id
Okada, Masato
Fujita, Yoshimasa
Sato, Takeshi
Tanaka, Masao  kyouindb  KAKEN_id  orcid (unconfirmed)
Usui, Takashi
Umehara, Hisanori
Mimori, Tsuneyo  kyouindb  KAKEN_id
Author's alias: 藤井, 隆夫
Issue Date: Sep-2009
Publisher: Elsevier
Journal title: Journal of Autoimmunity
Volume: 33
Issue: 2
Start page: 125
End page: 134
Abstract: We studied the efficacy of T cell vaccination with CD4+αβTh1 clones in lupus-prone MRL/Mp-Faslpr/lpr (MRL/lpr) mice. CD4+αβ Th1 clones, dna51 (Vβ8.3) and rnp2 (Vβ14), which stimulated anti-dsDNA or U1 ribonucleoprotein (U1RNP) antibody (Ab) production respectively, were isolated from splenocytes of MRL/lpr mice. Antinuclear Ab kinetics, renal function, renal histology, survival rate, and lymphocyte subpopulations in the spleen were monitored after intravenous adoptive transfer of IL-2-stimulated (s-) or irradiated (i-) clones to 3 week-old female MRL/lpr mice. Anti-idiotypic humoral and T cell responses against the transferred autoreactive Th1 clones were determined in parallel. Compared with PBS-treated MRL/lpr mice, anti-dsDNA Ab titers, and the activity index for lupus nephritis were all decreased in MRL/lpr mice vaccinated with i-dna51 cells, whereas survival rate was not improved. The numbers of CD4+Vβ8.3 T cells in the spleen were also significantly decreased in these mice. Anti-idiotypic Abs recognizing a 12 amino acid sequence of clone dna51 T cell receptor Vβ8.3-complementarity-determining region (CDR) 3 were detected in the MRL/lpr mice that received i-dna51 or s-dna51 cells. These Abs suppressed dna51 cell proliferation, as well as cytotoxicity of CD8+T cells against dna51. The present study suggests that vaccination with CD4+αβTh1 clone, dna51, elicits anti-idiotypic T cell and humoral responses against dna51 in MRL/lpr mice, although the immunoregulatory effects on lupus may be limited.
Rights: c 2009 Elsevier Ltd. All rights reserved.
This is not the published version. Please cite only the published version.
DOI(Published Version): 10.1016/j.jaut.2009.06.001
PubMed ID: 19596182
Appears in Collections:Journal Articles

Show full item record

Export to RefWorks

Export Format: 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.