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Biotech / Medical : Millennium Pharmaceuticals, Inc. (MLNM)
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From: Icebrg3/12/2007 12:33:21 PM
   of 3044
 
Use of systemic proteasome inhibition as an immune-modulating agent in disease.

Endocr Metab Immune Disord Drug Targets. 2007 Mar;7(1):29-34.

Mattingly LH, Gault RA, Murphy WJ.

Department of Microbiology & Immunology, University of Nevada School of Medicine, Mail Stop 320, Reno, NV 89557, USA. wmurphy@unr.edu.

Bortezomib is the first proteasome inhibitor to be used clinically for the treatment of multiple myeloma and has been suggested as a possible treatment for a wide variety of hematologic and solid malignancies. Recent data suggests that potent immunomodulatory effects can also occur with systemic proteasome inhibition. This has been recently shown to occur in a graft-versus host disease model following bone marrow transplantation in mice. The suggested direct immunological effects of bortezomib treatment to include a decrease in anti-apoptotic protein levels, an increase in expression of TNF-family receptors (specifically Apo2L/TRAIL), induction of apoptosis, and inhibition of the transcription factor NF-kappaB. The NF-kappaB pathway has been associated with the regulation of numerous immune and inflammatory response mediators. In this review, we will present recent information concerning the potential therapeutic implications of bortezomib for a range of immune disorders. These findings would suggest that bortezomib treatment may be of clinical significance to suppress solid organ transplant rejection, autoreactive T cell responses, pro-inflammatory cytokine production, and consequently disease progression and pathology in autoimmunity.
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