A novel mast cell growth factor (MCGF-3) produced by marrow-adherent cells that synergizes with interleukin 3 and interleukin 4
- PMID: 2379544
A novel mast cell growth factor (MCGF-3) produced by marrow-adherent cells that synergizes with interleukin 3 and interleukin 4
Abstract
A clonal marrow-adherent stromal cell line, +/+-1 LDA11, was derived and found to produce hemopoietic stimulatory activity for an interleukin 3 (IL-3)-dependent mast cell line, NFS/N1. This factor-dependent mast cell line displayed restricted growth factor responsiveness to only IL-3, interleukin 4 (IL-4), and the stromal cell-produced factor. The factor produced by stromal cells was distinguished from IL-3 and IL-4 and was characterized biochemically. This factor appears to be a novel mast cell growth factor (MCGF-3) capable of synergizing with IL-3 and IL-4. It may have broader reactivity in hemopoiesis than simply IL-3-dependent mast cells, and it may prove relevant to stromal cell-mediated hemopoiesis.
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