J 2023

HER2 status as a potential predictive biomarker for ovarian clear cell carcinoma

BARTU KENDALL, Michaela; Kristyna NEMEJCOVA; Romana MICHALKOVA; Ivana STRUZINSKA; Nikola HAJKOVA et al.

Základní údaje

Originální název

HER2 status as a potential predictive biomarker for ovarian clear cell carcinoma

Autoři

BARTU KENDALL, Michaela; Kristyna NEMEJCOVA; Romana MICHALKOVA; Ivana STRUZINSKA; Nikola HAJKOVA; Jan HOJNY; Eva KRKAVCOVA; Jan LACO; Radoslav MATEJ; Jana DROZENOVA; Gabor MEHES; Pavel FABIAN; Jitka HAUSNEROVÁ; Marian SVAJDLER; Petr SKAPA; David CIBULA; Tomas ZIMA a Pavel DUNDR

Vydání

Virchows Archiv, New York, Springer, 2023, 0945-6317

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30109 Pathology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.400

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/23:00132982

Organizační jednotka

Lékařská fakulta

EID Scopus

Klíčová slova anglicky

HER2; Ovarian clear cell carcinoma; Immunohistochemistry; Gynecopathology; Ovarian cancer

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 12. 1. 2024 13:43, Mgr. Tereza Miškechová

Anotace

V originále

Ovarian clear cell carcinoma (OCCC) is a subtype of ovarian carcinoma characterized by unique biological features and highly malignant characteristics including low chemosensitivity. Therefore, new therapeutic targets are needed. These could include the downstream pathways of receptor tyrosine kinases, especially the human epidermal growth factor receptor 2 (HER2). Our main objective was to characterize the HER2 status using immunohistochemistry (IHC) and FISH on 118 OCCCs, also considering the novel paradigm of HER2-zero and HER2-low status. Other aims included determination of the association between HER2 status and survival, HER2 gene DNA and RNA NGS analysis, HER2 gene expression analysis, and correlation between IHC and gene expression in HER2-zero and HER2-low cases. Cases with HER2 overexpression/amplification accounted for 5.1% (6/118), with additional 3% harbouring HER2 gene mutation. The remaining 112 (94.9%) cases were HER2-negative. Of these, 75% were classified as HER2-zero and 25% as HER2-low. This percentage of HER2 aberrations is significant concerning their possible therapeutic influence. Cases from the HER2-zero group showed significantly better survival. Although this relationship lost statistical significance in multivariate analysis, the results have potential therapeutic significance. HER2 gene expression analysis showed a significant correlation with HER2 IHC status in the entire cohort (HER2-positive vs. HER2-negative), while in the cohort of only HER2-negative cases, the results did not reach statistical significance, suggesting that gene expression analysis would not be suitable to confirm the subdivision into HER2-low and HER2-zero. Our results also emphasize the need for standardized HER2 testing in OCCC to determine the best predictor of clinical response.

Návaznosti

90233, velká výzkumná infrastruktura
Název: BBMRI.cz IV