An extensive immunohistochemical analysis of 290 ovarian adult granulosa cell tumors with 29 markers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064173%3A_____%2F24%3A43927256" target="_blank" >RIV/00064173:_____/24:43927256 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216224:14110/24:00136362 RIV/00209805:_____/24:00079902 RIV/00216208:11110/24:10481490 RIV/00216208:11120/24:43927256 a 7 dalších

Výsledek na webu

<a href="https://doi.org/10.1007/s00428-024-03854-0" target="_blank" >https://doi.org/10.1007/s00428-024-03854-0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00428-024-03854-0" target="_blank" >10.1007/s00428-024-03854-0</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An extensive immunohistochemical analysis of 290 ovarian adult granulosa cell tumors with 29 markers

Popis výsledku v původním jazyce

The current knowledge about the immunohistochemical features of adult granulosa cell tumor (AGCT) is mostly limited to the &quot;traditional&quot; immunohistochemical markers of sex cord differentiation, such as inhibin, calretinin, FOXL2, SF1, and CD99. Knowledge about the immunohistochemical markers possibly used for predictive purpose is limited. In our study, we focused on the immunohistochemical examination of 290 cases of AGCT classified based on strict diagnostic criteria, including molecular testing. The antibodies used included 12 of the &quot;diagnostic&quot; antibodies already examined in previous studies, 10 antibodies whose expression has not yet been examined in AGCT, and 7 antibodies with possible predictive significance, including the expression of HER2, PD-L1, CTLA4, and 4 mismatch repair (MMR) proteins. The results of our study showed expression of FOXL2, SF1, CD99, inhibin A, calretinin, ER, PR, AR, CKAE1/3, and CAIX in 98%, 100%, 90%, 78%, 45%, 41%, 94%, 82%, 26%, and 9% of AGCT, respectively. GATA3, SATB2, napsin A, MUC4, TTF1, and CD44 were all negative. PTEN showed a loss of expression in 71% of cases and DPC4 in 4% of cases. The aberrant staining pattern (overexpression) of p53 was found in 1% (3/268) of cases, 2 primary tumors, and 1 recurrent case. Concerning the predictive markers, the results of our study showed that AGCT is microsatellite stable, do not express PD-L1, and are HER2 negative. The CTLA4 expression was found in almost 70% of AGCT tumor cells.

Název v anglickém jazyce

An extensive immunohistochemical analysis of 290 ovarian adult granulosa cell tumors with 29 markers

Popis výsledku anglicky

The current knowledge about the immunohistochemical features of adult granulosa cell tumor (AGCT) is mostly limited to the &quot;traditional&quot; immunohistochemical markers of sex cord differentiation, such as inhibin, calretinin, FOXL2, SF1, and CD99. Knowledge about the immunohistochemical markers possibly used for predictive purpose is limited. In our study, we focused on the immunohistochemical examination of 290 cases of AGCT classified based on strict diagnostic criteria, including molecular testing. The antibodies used included 12 of the &quot;diagnostic&quot; antibodies already examined in previous studies, 10 antibodies whose expression has not yet been examined in AGCT, and 7 antibodies with possible predictive significance, including the expression of HER2, PD-L1, CTLA4, and 4 mismatch repair (MMR) proteins. The results of our study showed expression of FOXL2, SF1, CD99, inhibin A, calretinin, ER, PR, AR, CKAE1/3, and CAIX in 98%, 100%, 90%, 78%, 45%, 41%, 94%, 82%, 26%, and 9% of AGCT, respectively. GATA3, SATB2, napsin A, MUC4, TTF1, and CD44 were all negative. PTEN showed a loss of expression in 71% of cases and DPC4 in 4% of cases. The aberrant staining pattern (overexpression) of p53 was found in 1% (3/268) of cases, 2 primary tumors, and 1 recurrent case. Concerning the predictive markers, the results of our study showed that AGCT is microsatellite stable, do not express PD-L1, and are HER2 negative. The CTLA4 expression was found in almost 70% of AGCT tumor cells.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30109 - Pathology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Virchows Archiv

ISSN

0945-6317

e-ISSN

1432-2307

Svazek periodika

485

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

427-437

Kód UT WoS článku

001251527400001

EID výsledku v databázi Scopus

2-s2.0-85196549137