2025
Correlation between p53 immunoexpression and TP53 mutation status in extrapulmonary small cell neuroendocrine carcinomas and its association with patient survival
PAVLICKOVA, Klara; Jan HOJNY; Petr WALDAUF; Pavel DUNDR; Nikola HAJKOVA et al.Základní údaje
Originální název
Correlation between p53 immunoexpression and TP53 mutation status in extrapulmonary small cell neuroendocrine carcinomas and its association with patient survival
Autoři
PAVLICKOVA, Klara; Jan HOJNY; Petr WALDAUF; Pavel DUNDR; Nikola HAJKOVA; Marian SVAJDLER; Pavel FABIAN; Iva ZAMBO; Miroslava FLIDROVA; Jan LACO; Helena HORNYCHOVA; Patricie DELONGOVA; Jozef SKARDA; Jan HRUDKA a Radoslav MATEJ
Vydání
Virchows Archiv, New York, Springer, 2025, 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: 3.100 v roce 2024
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/25:00140584
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Extrapulmonary small cell neuroendocrine carcinoma; TP53 molecular analysis; p53 immunohistochemical analysis; Next generation sequencing
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 21. 1. 2026 13:36, Mgr. Tereza Miškechová
Anotace
V originále
Extrapulmonary small cell neuroendocrine carcinoma (EP-SCNC) is a rare malignancy with a poor prognosis. Despite its morphological similarity to lung small cell carcinomas, its oncogenesis remains uncertain. One hundred and seventy-one EP-SCNC were enrolled in a multicenter study, and all tissue samples underwent an immunohistochemical p53 analysis. One hundred twenty-five samples were molecularly analyzed using next-generation sequencing (NGS), comprising DNA and RNA analysis. p53 normal/wild type expression was detected in 68 cases (39.8%), whereas aberrant expression was detected in 103 cases (60.2%). Molecular TP53 alteration was detected in 92 out of 125 tumors (73.6%). The TP53 mutation was shown to be prognostic and associated with shorter overall survival (p = 0.041). The multivariate analysis of p53 and TP53 mutational status found that it impacted overall survival relative to distinct sites of tumor locations (p = 0.004 and p = 0.001, respectively). Age did not influenced survival in the multivariate analysis of p53 and TP53 (p = 0.002; p < 0.001 resp.). Among tumors with paired immunohistochemical and molecular results, 108 exhibited concordance between the immunohistochemical and molecular analysis, whereas 17 were discordant. Accordingly, p53 aberrant expression was tightly associated with a TP53 mutation (p < 0.001). In discordant cases, molecular analysis revealed no alteration in three tumors with p53 overexpression. In contrast, in 14 tumors with wild-type p53 expression, TP53 genetic alteration was detected. Possible causes of discordance are discussed in this manuscript. Furthermore, the incidence of aberrant p53 expression / TP53 molecular alteration was noticeably lower in EP-SCNC than in small-cell lung carcinomas. Therefore, in EP-SCNC, other driver mutations should be sought since personalized therapy can improve patient prognosis.
Návaznosti
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