Anti-peptide antibody production elicited by in vitro immunization of human peripheral blood mononuclear cells

Takashi Tamura, Kosuke Tomimatsu, Yoshinori Katakura, Makiko Yamashita, Shin Ei Matsumoto, Yoshihiro Aiba, Yeon Suk Jung, Yoshiichi Abe, Tsukasa Fujiki, Kiichiro Teruya, Sanetaka Shirahata

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8 Citations (Scopus)


Human monoclonal antibodies have great potential for use in the treatment of various diseases. We have established an in vitro immunization protocol for inducing antigen-specific antibody production from human peripheral blood mononuclear cells (PBMCs). In the in vitro immunization protocol, PBMCs are pretreated with L-leucyl-L-leucine methyl ester (LLME) to remove suppressive cells, and are sensitized and cultured with a soluble antigen in the presence of IL-2, IL-4 and muramyl dipeptide for 8 d, and then an antigen-specific antibody is produced. In this study, we examined the novel possibility of an in vitro immunization protocol, specifically, whether LLME-treated PBMCs can be sensitized with a peptide antigen to produce an anti-peptide antibody. The results indicate that antigen-specific immune responses were elicited by a peptide antigen derived from rice allergen, a cholera toxin B subunit, and TNF-α as a sensitizing antigen in in vitro immunization. These results suggest that the in vitro immunization protocol is applicable in the generation of an anti-peptide antibody against various antigens, including food allergens, foreign antigens, and self-antigens.

Original languageEnglish
Pages (from-to)2871-2875
Number of pages5
JournalBioscience, Biotechnology and Biochemistry
Issue number12
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

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


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