TTF-1 and PAX5 are frequently expressed in combined Merkel cell carcinoma

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11140%2F16%3A10324176" target="_blank" >RIV/00216208:11140/16:10324176 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1097/DAD.0000000000000464" target="_blank" >http://dx.doi.org/10.1097/DAD.0000000000000464</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1097/DAD.0000000000000464" target="_blank" >10.1097/DAD.0000000000000464</a>

Jazyk výsledku

angličtina

Název v původním jazyce

TTF-1 and PAX5 are frequently expressed in combined Merkel cell carcinoma

Popis výsledku v původním jazyce

Thyroid transcription factor-1 (TTF-1) is a marker of vtumors of pulmonary and thyroid origin, and its expression practically excludes diagnosis of Merkel cell carcinoma (MCC). However, TTF-1 expression in combined MCC was recently reported. PAX5 is a marker of B-cell origin that is also expressed in most classical MCC cases; however, its expression was not described in combined MCC. The authors decided to evaluate the expression of both these markers in a group of 5 combined MCCs (2 with invasive squamous cell carcinoma, 2 with squamous cell carcinoma in situ, and 1 with basal cell carcinoma). Expression of TTF-1 was found in 4 of 5 cases; in 3 cases, the marker was shown in the MCC component (weakly in 2 cases and strongly in 1 case), whereas the non-MCC component presented TTF-1 expression in 2 cases. A weak-to-moderate immunoreactivity for PAX5 was identified in all cases of the MCC component but in none of the non- MCC component. The results show that the expression of TTF-1 is a frequent finding in combined MCC and can be present in the neuroendocrine component, which differs from the conventional MCC. In contrast, PAX5 expression pattern is similar to that of the classical MCC.

Název v anglickém jazyce

TTF-1 and PAX5 are frequently expressed in combined Merkel cell carcinoma

Popis výsledku anglicky

Thyroid transcription factor-1 (TTF-1) is a marker of vtumors of pulmonary and thyroid origin, and its expression practically excludes diagnosis of Merkel cell carcinoma (MCC). However, TTF-1 expression in combined MCC was recently reported. PAX5 is a marker of B-cell origin that is also expressed in most classical MCC cases; however, its expression was not described in combined MCC. The authors decided to evaluate the expression of both these markers in a group of 5 combined MCCs (2 with invasive squamous cell carcinoma, 2 with squamous cell carcinoma in situ, and 1 with basal cell carcinoma). Expression of TTF-1 was found in 4 of 5 cases; in 3 cases, the marker was shown in the MCC component (weakly in 2 cases and strongly in 1 case), whereas the non-MCC component presented TTF-1 expression in 2 cases. A weak-to-moderate immunoreactivity for PAX5 was identified in all cases of the MCC component but in none of the non- MCC component. The results show that the expression of TTF-1 is a frequent finding in combined MCC and can be present in the neuroendocrine component, which differs from the conventional MCC. In contrast, PAX5 expression pattern is similar to that of the classical MCC.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FP - Ostatní lékařské obory

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

American Journal of Dermatopathology

ISSN

0193-1091

e-ISSN

—

Svazek periodika

38

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

513-516

Kód UT WoS článku

000378157800010

EID výsledku v databázi Scopus

2-s2.0-84975471969