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Interleukin-10: actions and therapeutic potential

M Goldman1, T Velu, M Pretolani

  • 1Department of Immunology, Hôpital Erasme, and Laboratory of Experimental Immunology, Université Libre de Bruxelles, Bruxelles, Belgium.

Biodrugs : Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
|January 1, 1997
PubMed

Interleukin-10 (IL-10) is a potent anti-inflammatory and immunosuppressive cytokine secreted by several cell types. Most anti-inflammatory effects of IL-10 are caused by its ability to deactivate macrophages and monocytes, whereas its immunosuppressive properties are due to functional inhibition of both antigen-presenting cells and T cells. On the other hand, IL-10 also exerts immunostimulatory effects, especially on B cells, CD8+ cytotoxic T cells and natural killer cells. In vivo administration of recombinant IL-10 (rIL-10) efficiently prevents experimental septic shock induced by endotoxin, staphylococcal superantigen or cecal ligation and puncture, as well as experimental autoimmune diseases mediated by T helper type 1 (T(H)1) cells and other inflammatory disorders. rIL-10 exerts paradoxical effects in cancer models, where it promotes tumour rejection, probably due to its stimulatory properties on cytotoxic cells. On the other hand, rIL-10 increases the severity of experimental infections caused by fungi or bacteria, and enhances systemic autoimmune features in mice with spontaneous lupus syndrome. Although the therapeutic potential of rIL-10 in human diseases seems promising, the multiple facets of rIL-10 in experimental immunopathology indicate that the success of clinical trials with rIL-10 will depend both on the appropriate selection of the patient populations to be treated and on the early detection of possible adverse effects.

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