The effect of BCG on in vitro immune reactivity and clinical course in dogs treated surgically for osteosarcoma

Autor: John S. Reif, Isaiah J. Fidler, Robert S. Brodey, Steen Bech-Nielsen, Donald A. Abt
Rok vydání: 1977
Předmět:
Zdroj: European Journal of Cancer (1965). 13:33-41
ISSN: 0014-2964
DOI: 10.1016/0014-2964(77)90227-4
Popis: Cell mediated reactivity (CMR) and serum blocking activity (SBA) were assessed postsurgically in 11 dogs treated surgically for osteosarcoma. Six dogs received Bacillus Calmette-Guerin (BCG) and 5 served as controls. SBA decreased significantly soon after surgery in both groups. Two to three months after surgery SBA was slightly higher in the controls than in the BCG group. However, the postsurgical SBA in BCG recipients rose to about the same level as in the controls at 4–12 months, correlating in time with radiographic appearance of metastasis. This suggested that BCG delayed SBA for several months. The median survival time of the BCG treated dogs was 40 weeks, significantly longer than the 13 week median survival time in the control group. The cumulative life table method for estimation of survival rate failed to show an effect of BCG on survival.
Databáze: OpenAIRE