Interleukin 24 (IL-24) is a protein that in humans is encoded by the IL24gene.
IL-24 is a cytokine belonging to the IL-10 family of cytokines that signals through two heterodimeric receptors: IL-20R1/IL-20R2 and IL-22R1/IL-20R2. This interleukin is also known as melanoma differentiation-associated 7 (mda-7) due to its discovery as a tumour suppressing protein. IL-24 appears to control in cell survival and proliferation by inducing rapid activation of particular transcription factors called STAT1 and STAT3. This cytokine is predominantly released by activated monocytes, macrophages and T helper 2 (Th2) cells and acts on non-haematopoietic tissues such as skin, lung and reproductive tissues. IL-24 performs important roles in wound healing, arthritis, psoriasis and cancer. Several studies have shown that cell death occurs in cancer cells/cell lines following exposure to IL-24. The gene for IL-24 is located on chromosome 1 in humans.
↑Poindexter NJ, Walch ET, Chada S, Grimm EA (September 2005). "Cytokine induction of interleukin-24 in human peripheral blood mononuclear cells". J. Leukoc. Biol. 78 (3): 745–52. doi:10.1189/jlb.0205116. PMID16000394.
↑Kragstrup, TW; Otkjaer, K; Holm, C; Jørgensen, A; Hokland, M; Iversen, L; Deleuran, B (January 2008). "The expression of IL-20 and IL-24 and their shared receptors are increased in rheumatoid arthritis and spondyloarthropathy". Cytokine. 41 (1): 16–23. doi:10.1016/j.cyto.2007.10.004. PMID18061474.
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↑Fisher PB, Gopalkrishnan RV, Chada S, Ramesh R, Grimm EA, Rosenfeld MR, Curiel DT, Dent P (2003). "mda-7/IL-24, a novel cancer selective apoptosis inducing cytokine gene: from the laboratory into the clinic". Cancer Biol. Ther. 2 (4 Suppl 1): S23–37. PMID14508078.
↑Sauane M, Lebedeva IV, Su ZZ, Choo HT, Randolph A, Valerie K, Dent P, Gopalkrishnan RV, Fisher PB (May 2004). "Melanoma differentiation associated gene-7/interleukin-24 promotes tumor cell-specific apoptosis through both secretory and nonsecretory pathways". Cancer Res. 64 (9): 2988–93. doi:10.1158/0008-5472.CAN-04-0200. PMID15126330.