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In vitro interactions of murine peritoneal macrophages and sarcoma cells. I. Promotion of tumor cells proliferation by macrophages.

Authors
  • Płytycz, B
  • Pedersen, A
  • Bøgwald, J
  • Seljelid, R
Type
Published Article
Journal
Virchows Archiv. B, Cell pathology including molecular pathology
Publication Date
Jan 01, 1986
Volume
50
Issue
3
Pages
285–292
Identifiers
PMID: 2870579
Source
Medline
License
Unknown

Abstract

An ascites subline (AA) of the murine sarcoma MC1M grows in vivo in the peritoneal cavity but dies in vitro when cultured on glass or collagen. The viability of AA cells in vitro is not influenced in cocultures with fibroblast cell line L929, and is diminished in cocultures supplemented with macrophage culture supernatant or in cocultures with non-adherent peritoneal cells. However, AA cells proliferate in vitro on glass or collagen when cocultured with syngeneic, semisyngeneic, and allogeneic peritoneal macrophages. This was demonstrated by tritiated thymidine incorporation assay, by AA cell number counting, and by measuring AA cell protein content. Proliferation also occurs when AA cells are separated from the macrophage monolayer by millipore filters.

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