Abstract
1. A KIK factor (III) was isolated from cancerous ascitic fluids and corresponding substances from the non-cancerous in electrophoretic-ally pure or almost pure state.
2. They were investigated regarding anemia-inducing potency and physical and chemical properties.
3. They were found to be glucidamins, and contained galactosamine, , glucosamine, galactose, glucose, mannose, L-fucose, xylose and/or lyxose, sialic acid and many amino acids.
4. The KIK factor in cancerous ascitic fluids differs in rotation and electrophoretic mobility or in rotation, electrophoretic mobility and com-position from the corresponding substances in non-cancerous fluids which are devoid of the anemia-inducing potency.
5. The KIK factor from cancerous ascitic fluids differs from either of the two KIK factors in cancerous gastric juices.
Thanks are due to the Ministry of Education which gave a grant to us through the Grant Committee for Scientific Researches. H. Masamune.