Serological, functional, and immunochemical characterization of a monoclonal antibody (MoAb Q2/70) to human Ia-like antigens

  • V. Quaranta
  • , F. Indiveri
  • , M. C. Glassy
  • , A. Ng
  • , C. Russo
  • , G. A. Molinaro
  • , M. A. Pellegrino
  • , S. Ferrone

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Serological and immunochemical studies showed that monoclonal antibody Q2/70 (MoAb Q2/70), produced by the hybridoma technique, is specific for human Ia-like antigens. This antibody recognizes an antigenic determinant which is different from those defining the serologic polymorphism of Ia-like antigens, and is expressed on subsets of human Ia-like molecules and on lymphoid cells from other species. MoAb Q2/70 inhibits unidirectional MLRs between allogenic human lymphocytes, but not between murine and human lymphocytes. In ADCC assays, MoAb Q2/70 mediates lysis of cultured human B lymphoid cells RPMI 4098, effected by murine splenocytes. The antibody is suitable to isolate immunologically functional B lymphocytes from human peripheral blood.

Original languageEnglish
Pages (from-to)211-223
Number of pages13
JournalHuman Immunology
Volume1
Issue number3
DOIs
StatePublished - 1980
Externally publishedYes

Keywords

  • ADCC
  • AET-ShE
  • Ab-E
  • E
  • Fab-E
  • MLRs
  • MoAb
  • OxE
  • PBL
  • Protein A from Staphylococcus aureus
  • SACI
  • SDS-PAGE
  • ShE
  • SpA
  • SpA-E
  • Staphylococcus aureus Covan I strain
  • antibody-dependent cellular cytotoxicity
  • erythrocytes
  • human peripheral blood lymphocytes
  • mixed lymphocyze reactions
  • monoclonal antibodies
  • ox erythrocytes
  • sheep erythrocutes chemically coated with Protein A from Staphylococcus aureus
  • sheep erythrocytes
  • sheep erythrocytes chemically coated with purified rabbit anti-mouse Ig antibodies
  • sheep erythrocytes treated with 2-aminoethylisothiouronium bromide
  • sheep erythrocytesm chemically coated with purified rabbit anti-mouse Fab antibodies
  • sodium dodecyl sulphate-polyacrylamide gel electrophoresis
  • β -microglubulin
  • β -μ

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