IL-10 augments antibody production in in Vitro immunized lymphocytes by inducing a Th2-type response and B cell maturation

Qianghua Xu, Yoshinori Katakura, Makiko Yamashita, Shengguo Fang, Takashi Tamura, Shin Ei Matsumoto, Yoshihiro Aiba, Kiichiro Teruya, Kazuhiro Osada, Ryuhei Nishikawa, Sanetaka Shirahata

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

An in vitro immunization (IVI) protocol enables antigen specific antibody production from L-Leucyl-L-Leucine methyl ester (LLME)-treated human peripheral blood lymphocytes (PBL) upon antigen stimulation in the presence of IL-2, IL-4, and muramyl dipeptide. In the course of our studies, we have found that IL-10 added at the antigen sensitization significantly augmented antibody production level from the LLME-treated PBL. In the present study, we tried to demonstrate the role of IL-10 in the augmentation of antibody production in an IVI protocol by clarifying the cytokine expression profiles in CD4+ and CD8 + T cells. The results showed that IL-10 skewed the Th1/Th2 balance to Th2-type responses by suppressing Th1-type cytokine production and augmenting Th2-type cytokine production in CD4+ and CD8+ T cells, as well as in CD19+ B cells. Furthermore, IL-10 augmented the expression of CD38, an antigen marker of plasma cells, on B cells, which clearly indicates that IL-10 promoted differentiation and maturation of B cells in an IVI protocol. These results indicate that IL-10 plays an important role in setting the cellular milieu to produce antibodies in an IVI protocol.

Original languageEnglish
Pages (from-to)2279-2284
Number of pages6
JournalBioscience, Biotechnology and Biochemistry
Volume68
Issue number11
DOIs
Publication statusPublished - Nov 2004

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

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