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Immunosuppressive activity of Phaseolus coccineus and Phaseolus vulgaris extracts in mice.

Authors
  • Calderón, R A
  • Córdoba, F
Type
Published Article
Journal
European journal of immunology
Publication Date
Jul 01, 1976
Volume
6
Issue
7
Pages
522–525
Identifiers
PMID: 1086791
Source
Medline
License
Unknown

Abstract

Lectin mixtures from 10 samples of Phaseolus coccineus and Phaseolus vulgaris beans were used as immunosuppressive agents in the sheep red blood cell (SRBC) antibody response of the mouse. Some bean samples contain lectins capable of inducing several times better suppression of humoral immunity than concanavalin A and phytohemagglutinin tested before in the same immune system. High dilutions of the 10 bean extracts were shown to agglutinate mouse, rabbit and sheep erythrocytes in vitro but the titers and "specificities" did not correlate with the immunosuppressive potency and selectivity displayed by the same extracts in mice. Two immunosuppressive bean extracts, assayed in lymphocyte cultures, were found to stimulate DNA synthesis of murine spleen T cells. This interaction appears to be a necessary step for the reduction of antibody synthesis to SRBC in the whole animal.

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