PAX9 is a member of the PAX-gene family which encodes for nuclear transcription factors. Their common feature is the so-called paired box. Specific mutations of PAX genes are associated with human cancers. In the adult, PAX9-expression is restricted mainly to the prickle cell layer of the squamous epithelium in the esophagus and cervix uteri. In dysplastic lesions, PAX9-expression diminishes with the severity of dysplasia. In invasive carcinoma of the esophagus and the cervix uteri, PAX9- expression is low and inhomogenous. Thus, PAX9 represents a marker for squamous epithelial differentiation. Overexpression or loss of PAX9-expression is not required for invasive tumour growth.
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PAX9 is a member of the PAX-gene family which encodes for nuclear transcription factors. Their common feature is the so-called paired box. Specific mutations of PAX genes are associated with human cancers. In the adult, PAX9-expression is restricted mainly to the prickle cell layer of the squamous epithelium in the esophagus and cervix uteri. In dysplastic lesions, PAX9-expression diminishes with the severity of dysplasia. In invasive carcinoma of the esophagus and the cervix uteri, PAX9- expres...
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