Differentiation of the rat myelomonocytic leukemia cell line c-WRT-7 by in vitro culture with the rat bone marrow preadipocyte cell line REC A16.

Abstract:

:Differentiation of the rat myelomonocytic leukemia cell line (c-WRT-7) was investigated, by co-culture with a rat embryonic bone marrow preadipose cell line (REC A16). Co-cultivation with REC A16, or with conditioned medium from REC A16 cultures (REC-CM), induced differentiation of c-WRT-7 cells to macrophages. A soluble factor(s) produced by REC A16 appeared to be responsible for the differentiation of c-WRT-7. Because REC-CM was associated with colony-stimulating activity on murine marrow progenitors, c-WRT-7 cells were cultured with various colony-stimulating factors (CSF) and it was found that macrophage CSF (M-CSF) significantly induced differentiation of c-WRT-7. We further demonstrated that both the colony-stimulating and differentiation-inducing activities of REC-CM were significantly blocked by anti-M-CSF antiserum. These results suggest that the differentiation of c-WRT-7 is due to M-CSF produced by REC A16. Co-culture of these two cell lines should provide a useful model to study the mechanisms of interaction between leukemia cells and marrow stroma.

authors

Tanaka T,Okamura S,Yasumoto S,Takeichi N,Kobayashi H,Niho Y

doi

10.1007/BF01208841

subject

Has Abstract

pub_date

1993-01-01 00:00:00

pages

335-41

issue

6

eissn

0171-5216

issn

1432-1335

journal_volume

119

pub_type

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