Title : Interleukin-1 alpha mediates phorbol ester-induced inflammation and epidermal hyperplasia.

Pub. Date : 1994 Oct

PMID : 7926375






6 Functional Relationships(s)
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1 It has been shown in a previous study that TPA induces the expression of the highly inflammatory cytokine, interleukin (IL) -1 alpha, in the epidermis of SENCAR mice. Tetradecanoylphorbol Acetate interleukin 1 alpha Mus musculus
2 The goal of this study was to investigate the role of IL-1 alpha in several TPA-induced responses in skin. Tetradecanoylphorbol Acetate interleukin 1 alpha Mus musculus
3 Topical application of TPA (1 microgram) enhanced the production of immunoreactive IL-1 alpha protein, primarily associated with the suprabasal keratinocytes. Tetradecanoylphorbol Acetate interleukin 1 alpha Mus musculus
4 TPA produced fourfold increases in vascular permeability as measured by Evans blue dye leakage; this effect was prevented by intradermal injection of anti-IL-1 alpha antibody (25-75 micrograms). Tetradecanoylphorbol Acetate interleukin 1 alpha Mus musculus
5 Furthermore, injected anti-IL-1 alpha antibody significantly reduced (P < 0.001) TPA-induced inflammatory cell infiltration and epidermal hyperplasia. Tetradecanoylphorbol Acetate interleukin 1 alpha Mus musculus
6 This study suggests that IL-1 alpha directly or indirectly mediates the inflammatory and hyperplastic responses elicited by topical treatment with TPA. Tetradecanoylphorbol Acetate interleukin 1 alpha Mus musculus