[Reaction of peripheral blood leukocytes to wound processes during phytohemagglutinin therapy in rabbits with different hypersensitivity of delayed type].

Altogether 165 rabbits were distributed into strongly and poorly reacting groups in terms of delayed type hypersensitivity (DTH) to phytohemagglutinin (PHA). It was established that leukocyte response to wound process correlated with the intensity of DTH. The strongly reacting animals manifested of DTH. The strongly reacting animals manifested an adequate response (leukocytosis, neutrophilosis, nomocytosis, lymphocytosis, a decrease in myeloperoxidase and enhancement of phagocytic activity of neutrophils), while the poorly responding animals an in adequate one (passivity of the leukocytic parameters with the exception of monocytosis). Application of the liniment containing PHA (3.3 micrograms per g base, Difco, USA) does not change the response in the strongly reacting animals and essentially corrects all the leukocytic parameters in the poorly reacting animals with the exception of phagocytic activity of neutrophils. From the leukocytic response pattern a conclusion is made about multiple defect of the leukocytic system under poor DTH to PHA and about the leading role of monocytes in correcting the defect by PHA.