THE CONTEXT
The passage describes growth-promoting and regulatory actions of two cytokines.
Transforming growth factor beta
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Transforming growth factor beta (TGF-b) was named for its ability to transform fibroblasts.
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It acts as a growth factor for fibroblasts and promotes wound healing.
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It also down-regulates some immunological and hematological processes.
Leukemia inhibitory factor
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Leukemia inhibitory factor (LIF)* is produced by T cells.
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LIF helps stem cell proliferation and eosinophil chemotaxis.