[Effect of immunocyte therapy on benzene-induced bone marrow haemopoietic dysfunction].
OBJECTIVE
To explore the effect of treatment with immunocyte therapy on benzene-induced haemopoietic dysfunction.


METHODS
Mono-nuclear cells (MNC) were separated from 40 - 50 ml peripheral blood in patients and mixed with interleukin-2 and granulocyte macrophage colony stimulating factor (GM-CSF) for six day cultivation. The new formed immunocytes were collected and transfused into the patients. Bone marrow aspiration and biopsy were taken before and after therapy for all patients with severe benzene poisoning. Blood samples were stained by flow cytometry for detecting CD(4) and CD(8) positive cells.


RESULTS
Of 20 patients with chronic benzene poisoning, 9 were severe benzene poisoning. All examination including blood count, bone marrow biopsy and T cell subpopulation restored to normal after immunocyte therapy. Laboratory tests (liver and kidney function, and myocardial enzymes) were observed periodically and showed normal during therapy. Follow-up study (the longest time was more than 15 months) showed that bone marrow haemopietic function of all treated patients were in normal range.


CONCLUSIONS
Bone marrow haemopoietic dysfunction caused by benzene poisoning may be closely related to disorder of immune function. Immunocyte therapy may significantly improve bone marrow haemopoietic dysfunction induced by benzene poisoning.
Chen
Jia-yu
JY
The Twelfth People's Hospital of Guangzhou, Guangzhou 510620, China.
Liu
Wei-wei
WW
Huang
Zhen-qian
ZQ
Wang
Xiao-huai
XH
Li
Yang-qiu
YQ
Wu
Jin-ming
JM
Wu
Lu-bo
LB
Yang
De-mao
DM
D000328:Adult; D000741:Anemia, Aplastic / Q000139:chemically induced / Q000276:immunology / Q000628:therapy*; D001554:Benzene / Q000506:poisoning*; D001853:Bone Marrow / Q000276:immunology / Q000473:pathology; D005260:Female; D005434:Flow Cytometry; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000139:chemically induced / Q000276:immunology / Q000628:therapy; D036102:Peripheral Blood Stem Cell Transplantation / Q000379:methods*; D016896:Treatment Outcome
D001554:Benzene