The Journal of Immunology, Vol 126, Issue 2 393-397, Copyright © 1981 by American Association of Immunologists

ARTICLES

Enhancement of the functional activities of human T cells after their interaction with SRBC

A Silva, M Lopez-Botet, J Alvarez and MO de Landazuri

We have examined the functional consequences of the exposure of human lymphocytes to sheep red blood cells (SRBC). Peripheral blood lymphocytes (PBL) were incubated wih SRBC under optimal conditions for their interaction and, after lysis of the erythrocytes, the unfractionated PBL were examined for several T cell functions. Only after exposure to SRBC, but not after incubation with mouse, ox, chicken, or human erythrocytes, the unfractionated PBL showed an increased reactivity in the following functions: 1) Production of T cell growth factor, after PHA stimulation; 2) mitogenic response to suboptimal doses of PHA and Con A, and 3) response in mixed lymphocyte culture. Other functional activities, such as natural cytotoxicity (NK) and antibody-dependent cellular cytotoxicity (ADCC) were also enhanced by the interaction of PBL with SRBC, but the increases in cytotoxic activities were not consistently detected. Taken together, these results indicate that the interaction of PBL with SRBC has functional consequences in the reactivity of T cells producing an enhancement of several in vitro T cell functions.

This article has been cited by other articles:

				S. Kinet, F. Bernard, C. Mongellaz, M. Perreau, F. D. Goldman, and N. Taylor gp120-mediated induction of the MAPK cascade is dependent on the activation state of CD4+ lymphocytes Blood, September 18, 2002; 100(7): 2546 - 2553. [Abstract] [Full Text] [PDF]