Functional and molecular analysis of three distinct HLA-DR4 β-chains responsible for the MLR between HLA-Dw4, Dw15, and DKT2

K. Hirayama, Y. Nishimura, K. Tsukamoto, Takehiko Sasazuki

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Differences in structure and function of HLA-class II molecules between HLA-DR4-related HLA-D specificities HLA-Dw4, Dw15, and DKT2 were investigated. Anti-HLA-DR framework monoclonal antibody HU-4 completely inhibited the one-way mixed lymphocyte reaction (MLR) between these specificities. HU-4 precipitated a monomorphic α-chain and a polymorphic β-chain of human class II molecules from each B lymphoblastoid cell line (BLCL) homozygous for these three HLA-D specificities. We established IL 2-dependent T cell lines specific for streptococcal cell wall (SCW) antigen from peripheral blood lymphocytes (PBL) from four DR4-positive donors: an HLA-Dw4/DKT2 heterozygote, an HLA-Dw4/Dw12 heterozygote, an HLA-DKT2/D-blank heterozygote, and an HLA-Dw15/D-blank heterozygote. These T cell lines showed a proliferative response to SCW antigen in the presence of autologous or allogeneic antigen-presenting cells (APC) when T cell donors and APC donors shared at least one of the HLA-C specificities. This cooperation between the T cell line and APC was completely blocked by HU-4. We conclude from these data that the T cells could distinguish three distinct DR4 molecules expressed on APC of HLA-Dw4, Dw15, and DKT2 as restriction molecules at the presentation of SCW antigen.

Original languageEnglish
Pages (from-to)924-933
Number of pages10
JournalJournal of Immunology
Volume137
Issue number3
Publication statusPublished - Jan 1 1986
Externally publishedYes

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HLA-DR4 Antigen
Mixed Lymphocyte Culture Test
HLA-D Antigens
Antigen-Presenting Cells
Heterozygote
T-Lymphocytes
Cell Wall
Cell Line
Viral Tumor Antigens
Antigens
HLA-C Antigens
HLA-DR Antigens
Interleukin-2
Monoclonal Antibodies
HLA-Dw4 antigen
HLA-Dw15
Lymphocytes

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

Cite this

Functional and molecular analysis of three distinct HLA-DR4 β-chains responsible for the MLR between HLA-Dw4, Dw15, and DKT2. / Hirayama, K.; Nishimura, Y.; Tsukamoto, K.; Sasazuki, Takehiko.

In: Journal of Immunology, Vol. 137, No. 3, 01.01.1986, p. 924-933.

Research output: Contribution to journalArticle

Hirayama, K. ; Nishimura, Y. ; Tsukamoto, K. ; Sasazuki, Takehiko. / Functional and molecular analysis of three distinct HLA-DR4 β-chains responsible for the MLR between HLA-Dw4, Dw15, and DKT2. In: Journal of Immunology. 1986 ; Vol. 137, No. 3. pp. 924-933.
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