The p53 molecule and its prognostic role in squamous cell carcinomas of the head and neck
Identifieur interne : 000F83 ( Istex/Checkpoint ); précédent : 000F82; suivant : 000F84The p53 molecule and its prognostic role in squamous cell carcinomas of the head and neck
Auteurs : Karin Nylander [Suède] ; Erik Dabelsteen [Danemark] ; Peter A. Hall [Royaume-Uni]Source :
- Journal of Oral Pathology & Medicine [ 0904-2512 ] ; 2000-10.
Abstract
Abstract: Despite intense research, the 5‐year survival rate for patients with squamous cell carcinoma of the head and neck (SCCHN) is still low. Several different factors have been studied in the search for one or more factors that give important prognostic information at the time of diagnosis. Many recent studies have focused on the TP53 tumour suppressor gene, analysing its gene status and protein status. When looking at p53 protein expression, using immunohistochemistry, no correlation to patient outcome has been seen for the whole group of SCCHN. However, a significant association between p53 expression and poor patient outcome was found when looking only at patients with laryngeal squamous cell carcinomas. Also, in oral premalignant lesions, expression of p53‐positive cells in the suprabasal layers of the epithelium has been seen as an indication of impending malignant development. Concerning the prognostic significance of mutations in the TP53 gene, results differ. But when restricting analysis to tumours with mutations causing an obvious change in protein, TP53 mutation was found to be a strong and independent variable for prognosticating survival. This review article gives an up‐to‐date overview of the p53 molecule and evaluates its possible prognostic role in SCCHN. Today it is clear that the p53 pathway is very important in SCCHN biology and potentially in its treatment. The function and importance of a few other cell cycle proteins connected to p53 are also discussed.
Url:
DOI: 10.1034/j.1600-0714.2000.290901.x
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">The p53 molecule and its prognostic role in squamous cell carcinomas of the head and neck</title><author><name sortKey="Nylander, Karin" sort="Nylander, Karin" uniqKey="Nylander K" first="Karin" last="Nylander">Karin Nylander</name></author><author><name sortKey="Dabelsteen, Erik" sort="Dabelsteen, Erik" uniqKey="Dabelsteen E" first="Erik" last="Dabelsteen">Erik Dabelsteen</name></author><author><name sortKey="Hall, Peter A" sort="Hall, Peter A" uniqKey="Hall P" first="Peter A." last="Hall">Peter A. 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Hall</name><affiliation wicri:level="2"><country>Royaume-Uni</country><placeName><region type="country">Écosse</region></placeName><wicri:cityArea>Department of Molecular and Cellular Pathology, University of Dundee, Ninewells Hospital, Dundee</wicri:cityArea></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Oral Pathology & Medicine</title><title level="j" type="alt">JOURNAL ORAL PATHOLOGY MEDICINE</title><idno type="ISSN">0904-2512</idno><idno type="eISSN">1600-0714</idno><imprint><biblScope unit="vol">29</biblScope><biblScope unit="issue">9</biblScope><biblScope unit="page" from="413">413</biblScope><biblScope unit="page" to="425">425</biblScope><biblScope unit="page-count">13</biblScope><publisher>Munksgaard International Publishers</publisher><pubPlace>Copenhagen</pubPlace><date type="published" when="2000-10">2000-10</date></imprint><idno type="ISSN">0904-2512</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0904-2512</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: Despite intense research, the 5‐year survival rate for patients with squamous cell carcinoma of the head and neck (SCCHN) is still low. Several different factors have been studied in the search for one or more factors that give important prognostic information at the time of diagnosis. Many recent studies have focused on the TP53 tumour suppressor gene, analysing its gene status and protein status. When looking at p53 protein expression, using immunohistochemistry, no correlation to patient outcome has been seen for the whole group of SCCHN. However, a significant association between p53 expression and poor patient outcome was found when looking only at patients with laryngeal squamous cell carcinomas. Also, in oral premalignant lesions, expression of p53‐positive cells in the suprabasal layers of the epithelium has been seen as an indication of impending malignant development. Concerning the prognostic significance of mutations in the TP53 gene, results differ. But when restricting analysis to tumours with mutations causing an obvious change in protein, TP53 mutation was found to be a strong and independent variable for prognosticating survival. This review article gives an up‐to‐date overview of the p53 molecule and evaluates its possible prognostic role in SCCHN. Today it is clear that the p53 pathway is very important in SCCHN biology and potentially in its treatment. The function and importance of a few other cell cycle proteins connected to p53 are also discussed.</div></front></TEI><affiliations><list><country><li>Danemark</li><li>Royaume-Uni</li><li>Suède</li></country><region><li>Hovedstaden</li><li>Écosse</li></region><settlement><li>Copenhague</li></settlement></list><tree><country name="Suède"><noRegion><name sortKey="Nylander, Karin" sort="Nylander, Karin" uniqKey="Nylander K" first="Karin" last="Nylander">Karin Nylander</name></noRegion></country><country name="Danemark"><region name="Hovedstaden"><name sortKey="Dabelsteen, Erik" sort="Dabelsteen, Erik" uniqKey="Dabelsteen E" first="Erik" last="Dabelsteen">Erik Dabelsteen</name></region></country><country name="Royaume-Uni"><region name="Écosse"><name sortKey="Hall, Peter A" sort="Hall, Peter A" uniqKey="Hall P" first="Peter A." last="Hall">Peter A. Hall</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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