[Effect of intratracheal gamma-globulin administration on the mitotic activity and proliferative pool of lymphoid cells of the respiratory tract].

After injection of gamma-globulin into respiratory tracts of rats a proliferative pool of lymphoid cells in the lungs increases and remains unchanged in the spleen. The increase in the proliferative pool was accompanied by a decrease in a mitotic cycle in the S-period. Immunization was followed by intensification of division processes in a group of medium lymphocytes and processes of blast cells differentiation.