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BRAF mutation in colorectal carcinomas with signet ring cell component     
Yazarlar
 Serap YALÇIN AZARKAN Serap YALÇIN AZARKAN
Ahi Evran Üniversitesi, Türkiye
Önder Öngürü
Türkiye
Özet
Objective: Signet ring cell carcinoma is a rare subtype of colorectal carcinoma (CRC) with an associated BRAFV600E mutation. We investigated frequencies of BRAF mutation in 28 CRCs containing variable signet ring cell component and their relation with clinicopathologic parameters.
Methods: According to the presence of signet ring cell component, tumors were categorized into groups as follows: 0%-9%, 10%-24%, 25%-49%, and >50%. Genomic DNA was isolated and analyzed for BRAF V600E gene mutation by polymerase chain reaction-restriction fragment length polymorphism. Eleven of 28 cases (39.3%) showed BRAFV600E mutation, which was also confirmed by Sanger sequencing. To elucidate the importance of existence of signet ring cell component at the molecular level, we separated cases into two groups with cut-off levels of 10% and 50%, which pertain to percentages of signet ring cells.
Results: Seven of 19 cases (36.8%) under the threshold of 50% and four of nine cases (44.4%) over this threshold value demonstrated BRAF mutation. Three of 7 cases (42.8%) featuring <10% signet ring cell component and eight out of 21 cases (38.1%) showing >10% were BRAF mutated.
Conclusions: BRAF mutation must be closely associated with the presence of malignant signet ring cells regardless of their percentages.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı CANCER BIOLOGY & MEDICINE
Dergi ISSN 2095-3941
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 08-2017
Cilt No 14
Sayı 3
Sayfalar 287 / 292
Doi Numarası 10.20892/j.issn.2095-3941.2017.0053
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
WoS 10
Google Scholar 14
BRAF mutation in colorectal carcinomas with signet ring cell component

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