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Current Topics in Medicinal Chemistry


ISSN (Print): 1568-0266
ISSN (Online): 1873-4294

Potential Adverse Effects Associated with Inhibition of p38α/β MAP Kinases

Author(s): Donna M. Dambach

Volume 5, Issue 10, 2005

Page: [929 - 939] Pages: 11

DOI: 10.2174/1568026054985911

Price: $65


Inhibitors of p38 MAP kinases show promise for the treatment of inflammatory and immunological disorders and some cancers. There is a substantial body of experimental evidence across several organ systems suggesting that p38 also mediates developmental, differentiation and proliferation processes. As a consequence of the wide-ranging regulatory role of p38 kinase in diverse cellular processes, the possibility of adverse events resulting from undesired pharmacological activity is a major concern for the p38 inhibitor drug class. Taking into consideration the limitations of experimental modeling systems, together the data may indicate that profound inhibition of p38 has the potential to impact these processes during fetal or neonatal development. The difficulty comes in extrapolating these findings to predict potential adverse effects under conditions of partial inhibition of p38 activity, and in an adult population in which these processes are typically only recapitulated during repair or adaptive responses. As such, the goal of this review of the targets of p38 activity is to bring an awareness of the those organ systems that should be monitored for potential toxicity, as well as to present a potential mechanistic basis for such monitoring or for investigation of adverse effects that may develop with administration of a p38 inhibitor.

Keywords: immunological disorders, pro-inflammatory cytokines, c-jun n-terminal (jnk), genetically-modified cell culture, type I interferon (ifn) receptor, extracellular signal-regulated kinases

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