Abstract
The effects of 105K glycoprotein (105Kgp), purified from sera of MDCC-MSB1-41C (MSB1-41C)-transplanted chickens, on the tumor cell growth were examined. The tumor growth in the 105Kgp-injected and cell-transplanted chickens was significantly accelerated in comparison with that of cell-transplanted control chickens. The enhancement of the in vitro cell growth of MSB1-41C, on the other hand, was stimulated by the addition of 105Kgp. These facts suggest that the 105Kgp may act as a enhancing factor for the tumor cell growth.
