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Sci STKE. 2000 Nov 14;2000(58):pe1.

NF-kappa B defects in humans: the NEMO/incontinentia pigmenti connection.

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  • 1Unité de Biologie Moléculaire de l'Expression Génique, Institut Pasteur, Paris, France.


The components of the nuclear factor-kappaB (NF-kappaB) family of transcription factors are critical for regulating the response to immune challenges. Recently, a role for NF-kappaB in skin biology has been revealed. Within the cascade of proteins whose activities impinge upon the activation of NF-kappaB, the NEMO (NF-kappaB essential modulator)/IKKgamma protein is required for the activation of the IkappaB kinases, which in turn, promote the degradation of IkappaB proteins, leading to the derepression of NF-kappaB activity. Courtois and Israël discuss the role of NEMO/IKKgamma in normal physiological activation of NF-kappaB and the consequences of defective NF-kappaB activation, as an effect of NEMO/IKKgamma mutations, which can lead to incontinentia pigmenti, a disease marked by alopecia, tooth eruption, skin lesions, and changes in skin pigmentation.

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