E-viri
Recenzirano
-
da Silva Amancio, Alice Muglia Thomaz, PhD; da Cunha, Isabela Werneck, MD, PhD; Neves, José Ivanildo, MSc; da Silva Quetz, Josiane, PhD; Carraro, Dirce Maria, PhD; Rocha, Rafael Malagoli, PhD; Zequi, Stenio Cássio, MD, PhD; Cubilla, Antonio Leopoldo, MD; da Fonseca, Francisco Paulo, MD, PhD; Lopes, Ademar, MD, PhD; do Perpétuo Socorro Saldanha da Cunha, Maria, MD; Lima, Marcos Venício Alves, MD, PhD; Vassallo, José, MD, PhD; Guimarães, Gustavo Cardoso, MD, PhD; Soares, Fernando Augusto, MD, PhD
Human pathology, 03/2017, Letnik: 61Journal Article
Penile carcinoma (PC) is more frequent in underdeveloped countries, generally is diagnosed at an advanced stage when therapeutic options are restricted, and thus is associated with high morbidity/mortality rates. Recent studies have demonstrated clinical benefits with epidermal growth factor receptor (EGFR)–targeted therapy in PC patients, although there is no test that provides accurate patient selection. The aim of the present study was to evaluate the prognostic value of EGFR gene and protein status in tumor samples from patients with primary penile squamous cell carcinoma (SCC). We assessed the expression of wild-type and two mutant EGFR isoforms (delA746-E750 and mL858R) by immunohistochemistry in 139 samples, of which 49 were also evaluated for EGFR copy number by fluorescence in situ hybridization (FISH). Positive immunohistochemical staining of wild-type and mutant EGFR was evidenced by complete and strong membranous staining. For FISH analysis, cases were considered unaltered, polysomic, or amplified, as determined by signals of the EGFR gene and chromosome 7. An independent cohort of 107 PC samples was evaluated for mutations in EGFR , KRAS , and BRAF . Protein overexpression was noted in nearly half of the cases and was associated with cancer recurrence (P = .004) and perineural invasion (P = .005). Expression of the two mutated EGFR isoforms was not observed. The FISH status was not associated with protein expression. Altered FISH (polysomy and gene amplification) was an independent risk factor for dying of cancer. Only one patient of 107 presented KRAS mutations, and no mutations of EGFR or BRAF were observed.
Avtor
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Vnos na polico
Trajna povezava
- URL:
Faktor vpliva
Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
---|
Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
---|
Vir: Osebne bibliografije
in: SICRIS
To gradivo vam je dostopno v celotnem besedilu. Če kljub temu želite naročiti gradivo, kliknite gumb Nadaljuj.