crypt neurons |
cryptokines |
DRYLAIV motif |
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term describing the actions of growth factors or cytokines or hormones in which a cell produces a factor that acts within a closed space. This may be a special case of a localized paracrine or juxtacrine activity between to fixed cell types or between a fixed cell type and a migratory cell (Funder, 1990).
Examples of cryptocrine activity are that of Sertoli cells producing factors acting on spermatids within seminiferous tubules, or factors that act on lymphocytes within the thymus. Some latent cytokines (for example, latent TGF-beta (L-TGF
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