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Autoimmunity. 2014 Aug;47(5):307-19. doi: 10.3109/08916934.2014.900756. Epub 2014 Mar 27.

The deubiquitinase A20 in immunopathology of autoimmune diseases.

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  • 1School of Life Sciences, Jawaharlal Nehru University , New Delhi , India.


Deubiquitination-mediated regulation is important for homeostatic NF-κB activation. Aberrant NF-κB activation associated with various inflammatory and autoimmune disorders is linked with defects in the deubiquitinase A20. A20 is an important anti-inflammatory molecule that is induced by multiple signals and has numerous targets. Polymorphisms within the A20 locus or its altered expression are thought to contribute in development of autoimmune disorders. Further various studies in mice models underscore the biological importance of A20 in prevention of inflammatory conditions. Dysregulated A20 is also been suggested as a link between prolonged inflammation and cancer by preliminary reports. This review summarizes the existing understanding and focuses on the new developments in the field of A20 biology. These developments highlight the importance of A20 in pathophysiology of autoimmune disorders and its scope as therapeutics and a biomarker.


Deubiquitination; NF-κB; dysregulated A20; inflammation; negative regulation

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