Activation of B lymphocytes by locally concentrated concanavalin A

Authors:
  • JAJ. Andersson
    J. Andersson
  • GEG. M. Edelman
    G. M. Edelman
  • OSO. Sjöberg
    O. Sjöberg

Abstract
B lymphocytes are not stimulated by soluble concanavalin A (Con A). However, Con A cross‐linked at the bottom of tissue culture petri dishes could activate DNA synthesis in B cells. Addition of free Con A to such cultures inhibited the proliferative response to insoluble Con A. T lymphocytes were not activated by locally concentrated Con A, although they responded to soluble Con A. In the presence of both soluble and cross‐linked Con A there was a shift in the dose response curve to soluble Con A, the magnitude of which varied with the concentration of cross‐linked Con A.

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