The Journal of Experimental Medicine, Vol 140, 1421-1426,
Copyright © 1974 by The Rockefeller University Press
RESTORATION OF IMMUNE COMPETENCE IN TOLERANT MICE BY PARABIOSIS TO NORMAL MICE
Susan Zolla 1 and
David Naor 1
1 From the Immunology Research Laboratory, Veterans Administration Hospital, New York 10010, the Department of Pathology, New York University Medical School, New York 10016, and the Department of Immunology, Hadassah Medical School, Hebrew University, Jerusalem, Israel
These studies demonstrate that mice tolerant to human gamma globulin (HGG) regain their ability to make antibody to HGG after parabiosis to normal mice. This can be demonstrated by enumeration of PFC in the spleens of both the normal and tolerant partners. Hemagglutinin titers of normal-tolerant parabionts, however, are exceptionally low; serum antibody appears to be neutralized by circulating HGG present originally in the serum of the tolerant partner. These data support the hypothesis that tolerance to HGG in mice is a "defective" state due to the absence of cells capable of responding to this antigen.
Submitted on August 28, 1974