HYPERTHERMIA AND IMMUNOTHERAPY AS A NEW COMBINED THERAPY OF TUMOUR DISEASE
Main researcher
: TARADI, MILAN (49133) Assistants
ANDREIS, IGOR (496)
KOZJEK, LIDIJA (123743)
Type of research: basic Duration from: 04/30/91. to 12/31/95. Papers on project (total): 9
Papers on project quoted in Current Contents: 4
Institution name: Medicinski fakultet, Zagreb (108) Department/Institute: Department of Physiology Address: Šalata 3, POB 978 City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (0)1 45 66 921
Summary: The effect of immunostimulation and hyperthermia on
experimental tumour growth was studied. The combined thermoimunotherapy
strongly inhibit tumour growth and the incidence of spontaneous
metastasis. The described study suggest that this therapy could be used as
an potent anticamcer treatment modality. We have studied the effect of a
streptococcal preparation, OK-432 (Picibanil), given alone or in
combination with hyperthermia on murine tumour and normal tissue. OK-432
after local administration enhanced the termal response of murine tumor
and normal tissue. This enhancement was greater for the tumour than for
the normal tissue, resulting in a favourable differential effect between
normal and malignant tissue (the average therapeutic gain was 1,33
+-0,19). Further studies were conducted to disclose the mehanism of OK-432
induced thermal enhancement. Although OK-432 showed a slight direct
cytotoxic activity against tumour cells in vitro, the in vivo antitumour
effect of combined OK-432 and hyperthermia treatmens was greater than the
effect expected from in vitro cytotoxicity, indicating the involvement od
the host-mediated mechanisms.
Research goals: The purpos of this project was to examine the
effects of hyperthermia and immunotherapia on tumour growth. The results
suggests that combined thermoimmunotherapy could be a potentant anticancer
tretment. The streptococal agent, OK-432 (Picibanil) can be employ for
immunotherapy and thermotherapz of patient with malignant tumours.
COOPERATION - INSTITUTIONS
Name of institution
: Department of Radiation Medicine,
University of Kentucky, Lexington, KY, USA Type of institution: Economical/Production City: 40536-0084 - Lexington, Kentucky, USA Other information about the project.