Asset Details
Do you wish to reserve the book?
High level expression of ΔN-p63: a mechanism for the inactivation of p53 in undifferentiated nasopharyngeal carcinoma (NPC)?
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
High level expression of ΔN-p63: a mechanism for the inactivation of p53 in undifferentiated nasopharyngeal carcinoma (NPC)?
Do you wish to request the book?
High level expression of ΔN-p63: a mechanism for the inactivation of p53 in undifferentiated nasopharyngeal carcinoma (NPC)?
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
High level expression of ΔN-p63: a mechanism for the inactivation of p53 in undifferentiated nasopharyngeal carcinoma (NPC)?
2000
Overview
Undifferentiated nasopharyngeal carcinoma (NPC) is an epithelial malignancy that is consistently associated with Epstein-Barr virus (EBV) but which very rarely has p53 gene mutations in primary tumours. Since the tumour suppressor p53 is mutated in most human cancers or the wild type protein is inactivated in a significant number of the remainder, here we have investigated cellular factors that could compromise p53 function in primary NPC. Twenty-five primary tumours were judged to carry only wild type p53 by SSCP analysis of all exons and sequence determination of exons 4–9. Only one tumour was found to express significant levels of hMdm2 and in 24/25 there were no detectable mutations or deletions in exons 1β and 2 of the p14ARF gene. However, immunohistochemistry consistently revealed that all the tumour cells express substantial amounts of the p53-related protein p63. Semi-quantitative RT–PCR analysis of mRNA from tumour biopsies showed that the dominant species expressed was invariably the truncated ΔN-isotype. Since this can block p53-mediated transactivation, it is potentially a dominant-negative isoform. In normal nasopharyngeal epithelium the distribution of p63 was restricted to the proliferating basal and suprabasal layers. We suggest that ΔN-p63 is a good candidate as a suppressor of wild type p53 function in these tumours and also that it may prove to be a valuable diagnostic marker for undifferentiated NPC.
Publisher
Nature Publishing,Nature Publishing Group
