| Literature DB >> 8033086 |
H Lahm1, J Wyniger, S Hertig, A Yilmaz, J R Fischer, J C Givel, N Odartchenko.
Abstract
Secretion of several cytokines by colorectal carcinoma cells has been substantiated. These do not include granulocyte-macrophage colony-stimulating factor (GM-CSF) thus far. We show that the supernatant of two human colorectal carcinoma cell lines, LS1034 and SW480, stimulates proliferation of GM-CSF-dependent M07e cells. The activity was constitutively secreted by LS1034 cells and could be induced by serum-free culture conditions in SW480 cells. Addition of a neutralizing anti-GM-CSF antibody completely inhibited this activity. Preabsorption with anti-GM-CSF antibody removed all M07e growth-stimulating activity from LS1034 and SW480 supernatant. Western blot analysis revealed the presence of GM-CSF in LS1034 supernatant. Our results indicate that human colorectal carcinoma cells secrete indeed biologically active GM-CSF.Entities:
Mesh:
Substances:
Year: 1994 PMID: 8033086
Source DB: PubMed Journal: Cancer Res ISSN: 0008-5472 Impact factor: 12.701