Notch receptors in human choroid plexus tumors

Autor: Rudi Beschorner, Waidelich J, Trautmann K, Psaras T, Schittenhelm J
Rok vydání: 2013
Předmět:
Zdroj: DIGITUM. Depósito Digital Institucional de la Universidad de Murcia
instname
Europe PubMed Central
ISSN: 1699-5848
Popis: Notch signaling plays a role in development and formation of the normal choroid plexus (nCP), and in formation of various tumors in humans. Activation of Notch3 has been reported to promote tumor growth in invasive gliomas and to initiate formation of choroid plexus tumors (CPT) in mice. We investigated the expression of all currently known Notch receptors (Notch 1-4) in 55 samples of nCP and 88 CPT, including 61 choroid plexus papillomas (CPP), 22 atypical CPP and 5 choroid plexus carcinomas by immunohistochemistry. Notch expression was semiquantitatively evaluated separately for membranous/cytoplasmic and for nuclear staining. In addition, we examined Her2 expression (EGFR2, Her2/neu, ErbB2, CD340) because of its functional link to Notch signaling. All samples were negative for Notch3. Membranous/cytoplasmic expression of Notch1 (p
Databáze: OpenAIRE