IRAKs: Key Regulatory Kinases of Innate Immunity

ISSN: 1875-614X (Online)
ISSN: 1871-5230 (Print)

Volume 15, 3 Issues, 2016

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Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Inflammatory and Anti-Allergy Agents

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Claudiu T. Supuran
Neurofarba Department
University of Florence

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IRAKs: Key Regulatory Kinases of Innate Immunity

Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry, 4(1): 13-20.

Author(s): Nobutaka Suzuki, Shinobu Suzuki and Takashi Saito.

Affiliation: Laboratory for Cell Signaling, RIKEN Research Center for Allergy and Immunology, 1-7-22 Suehiro-cho,Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan.


Toll-like receptors (TLRs), interleukin 1 receptor (IL-1R), IL-18 receptor (IL-18R) and plant R are vital to the induction of acute inflammation as well as various adaptive immune responses upon invasion of microorganisms. These receptors share a common cytoplasmic domain called the TIR (TLR / IL-1R / plant R) domain and the signaling cascade involving the TIR domain is conserved from invertebrate to vertebrate. The engagement of TIR domain containing receptors initiates their signaling through several intermediate proteins including serine-threonine kinase IL-1 receptor associated kinases (IRAKs). The IRAK family has four members and the newest member, IRAK-4, is indispensable to the TIR-mediated signaling pathway. The improper regulation of TIR receptor signaling leads to the development of such severe inflammatory diseases as sepsis, asthma, rheumatoid arthritis and even cancer. Therefore, it is very important to determine precisely the implications of TIR signaling in those inflammatory diseases for appropriate medical treatment and drug development. As IRAK-4 is the critical molecule for TIR-mediated signaling, it is a promising therapeutic target for many inflammatory diseases. In this review, we discuss the functions of the IRAK family members with focus on IRAK-4, to seek the possibility of yielding new therapeutic strategies.


irak-1, irak-2, irak-m, irak-4, tir domain, innate immunity.

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Article Details

Volume: 4
Issue Number: 1
First Page: 13
Last Page: 20
Page Count: 8
DOI: 10.2174/1568014053005345

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