[Adriamycin combined with hyperthermia inhibits transplanted B cell lymphoma in nude mice].
OBJECTIVE
To study the effect of adriamycin combined with hyperthermia on tumor formation and growth of human B lymphoma cell line (Raji) in nude mice.


METHODS
Twenty-four BALB/C nude mice were divided into control group (37 degrees celsius;), chemotherapy group (37 degrees celsius;+ADM), hyperthermia group (42 degrees celsius;) and thermochemotherapy group (42 degrees celsius;+ADM), and in each mouse, 5 x 10(6) Raji cells were injected subcutaneously. The time and rate of tumor formation were observed, the tumor diameter was measured every 3 days and the tumor volume calculated to obtain the growth curves of the tumors. Three weeks after tumor formation, all the mice were executed to observe the histopathological changes of the tumor with HE staining.


RESULTS
The time of tumor formation in the control, chemotherapy, hyperthermia and thermochemotherapy groups were 11.2-/+1.7, 20.2-/+2.3, 15.3-/+1.6 and 23.8-/+1.7 days, respectively. Three weeks after tumor formation, the average weight of the tumors were 3.33-/+0.57, 2.26-/+0.28, 2.76-/+0. 26 and 1.73-/+0. 33 g, respectively, and the tumor growth inhibition rate was 48.0% in the thermochemotherapy group.


CONCLUSIONS
Thermochemotherapy can be effective in inhibiting tumor growth and provides an alternative of adjuvant therapy for malignant B cell lymphoma.
Wei
Hong-mei
HM
Department of Oncology, 88 Hospital of PLA, Tai'an 271000, China. whmppx@163.com
Ruan
Yi-min
YM
Zhang
Li-cheng
LC
Peng
Yong
Y
Guo
Kun-yuan
KY
D000818:Animals; D018951:Antigens, CD20 / Q000378:metabolism; D045744:Cell Line, Tumor; D002471:Cell Transformation, Neoplastic; D003131:Combined Modality Therapy; D004317:Doxorubicin / Q000494:pharmacology* / Q000627:therapeutic use; D005260:Female; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects; D006801:Humans; D006979:Hyperthermia, Induced; D017493:Leukocyte Common Antigens / Q000378:metabolism; D016393:Lymphoma, B-Cell / Q000188:drug therapy / Q000235:genetics / Q000473:pathology* / Q000628:therapy; D008297:Male; D051379:Mice; D008819:Mice, Nude; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D023041:Xenograft Model Antitumor Assays
D018951:Antigens, CD20; D019253:Proto-Oncogene Proteins c-bcl-2; D004317:Doxorubicin; D017493:Leukocyte Common Antigens