Receptor Tyrosine Kinase Pathway and Infiltrating Urothelial Carcinoma

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Tarih

2023

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Begell House Inc

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

Receptor tyrosine kinase pathway is frequently searched for cancer causing mutations in tumors. Emerg-ing targeted therapies are gleam of hope for them. Infiltrating urothelial carcinoma can have many morphological aspects according to their differentiation/variants. To evaluate KRAS, BRAF, and PIK3CA mutations and HER2, EGFR, and p16 expression, we divided urothelial carcinomas into two groups: differentiated/variants (n = 12) and conventional (n = 12). We compared results with clinical, demographic, histopathologic features and survival rates. No statistically sig-nificant results could be obtained in the comparison of histopathologic properties/survival rates with mutation analysis and EGFR, HER2, and p16 status. Differentiated/variants urothelial carcinoma showed higher EGFR expression (P < 0.001). Glandular differentiation was the most frequent type, followed by squamous and sarcomatoid differentiation. We observed the most common mutation at KRAS with a propensity for urothelial carcinoma with glandular differentiation. More than one mutation/high protein expression was seen in some tumors. Targeted therapies for KRAS mutation can be effective at urothelial carcinoma with glandular differentiation. Heterologous expression of relevant proteins and genes can be a cause for targeted treatment obstacle. The determination of the molecular characters of tumors is a guide in creating targeted treatment algorithms and in choosing the patient.

Açıklama

Anahtar Kelimeler

Infiltrating Urothelial Carcinoma; Receptor Tyrosine Kinase Pathway; Signal Transduction; Molecular Pathology, Bladder-Cancer; 3-Kinase Pathway; Expression; Gene; Activation; Mutations; Variants; Pik3ca; Fgfr3; Kras

Kaynak

Journal of Environmental Pathology Toxicology and Oncology

WoS Q Değeri

Q3

Scopus Q Değeri

Q3

Cilt

42

Sayı

1

Künye