Exogenous thrombospondin stimulates the proliferation of non-thrombospondin-producing cells

Autor: Tetsushi Kinugasa, R Beppu, S Sendo, T Kurohiji, Takayuki Shirakusa, T Hosokawa, Y. Yamashita, G Tuszynski, Tetsuo Shinohara
Rok vydání: 1998
Předmět:
Zdroj: International Journal of Oncology.
ISSN: 1791-2423
1019-6439
DOI: 10.3892/ijo.13.2.355
Popis: The effects of thrombospondin (TSP) on the proliferation of two different human carcinoma cell lines (KIM-1 and CW-2) were investigated. The characterization of these two carcinoma cells by immunohistochemistry using anti-TSP antibody and anti-TSP-receptor antibody showed that the KIM-1 had TSP-receptors and TSP, while the CW-2 had only TSP-receptors. The addition of exogenous TSP (10 or 20 microg/ml) to culture medium stimulated the cell proliferation of CW-2 but not that of KIM-1. The cell count for CW-2 was increased dosage-dependently from 10.3 0.6x104/ml at zero TSP concentration to 12.9 0.6x104/ml at 10 microg/ml TSP concentration and to 14.7 0. 4x104/ml at 20 microg/ml TSP (each p
Databáze: OpenAIRE