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کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Asian Pacific Journal of Cancer Prevention
- نوع مقاله: Journal Article
- کلمات کلیدی: Colon cancer,High frequency,KRAS codon 146 mutation,FBXW7 mutation,Thai patients
- چکیده:
- چکیده انگلیسی: Background: KRAS, NRAS, and BRAF gene mutations are the most clinically relevant and frequently reported in
colorectal cancer (CRC). Although data on these genes are frequently reported in several counties, data specific to these
genes among Thai population are scarce. The aim of this study was to investigate and identify molecular alterations
associated with colon cancer in Thai population, and to determine the impact of these genetic aberrations on clinical
outcome. Methods: DNA from 108 archived formalin-fixed, paraffin-embedded (FFPE) tissue samples that histologically
confirmed adenocarcinoma of stage II-III colon cancer between 2010 and 2012 at Siriraj Hospital (Bangkok, Thailand)
were extracted. Gene mutational analysis was performed by next-generation sequencing (NGS) using an Oncomine
Solid Tumor DNA kit (Thermo Fisher Scientific, Inc., Waltham, MA, USA). Results: A total of 22 somatic gene
mutations were detected. The mutation frequency observed in KRAS, NRAS, BRAF, PIK3CA, and FBXW7 mutations
was 47.2%, 1.9%, 1.9%, 12%, and 14.8%, respectively. KRAS mutation codon 12, 13, 59, 61, 117, and 146 mutations
were identified in 29.6%, 8.3%, 1.8%, 0.9%, 0.0%, and 8.3%, respectively. KRAS Exon 4 had better DFS compared
with Exon 2 and 3. Conclusions: This study is the first to comprehensively report hotspot mutations using NGS in Thai
colon cancer patients. The most commonly identified gene mutation frequencies among Thai patients (KRAS, NRAS,
BRAF, TP53, and PIK3CA) were similar to the gene mutation frequencies reported in Western population, except for
subgroup of KRAS codon 146 and FBXW7 mutations that had a slightly higher frequency.- انتشار مقاله: 21-10-1397
- نویسندگان: Krittiya Korphaisarn,Ananya Pongpaibul,Ekkapong Roothumnong,Khontawan Pongsuktavorn,Lucksamon Thamlikitkul,Tauangtham Anekpuritanang,Naravat Poungvarin,Wanna Thongnoppakhun,Manop Pithukpakorn
- مشاهده
- جایگاه : پژوهشی
- مجله: Asian Pacific Journal of Cancer Prevention
- نوع مقاله: Journal Article
- کلمات کلیدی: Adjuvant,head and neck cancer,Chemoradiation,non-squamous carcinoma,salivary gland tumor
- چکیده:
- چکیده انگلیسی: Background: Non-squamous cell carcinoma of the head and neck (HNnSCCA) is a rare tumor. Surgery is the
standard treatment for resectable non-metastatic patients. Post-operative radiation (RT) is indicated for high-risk patients.
No data from the randomized controlled trial utilizing post-operative concurrent chemoradiation (CCRT) is available.
This study was aimed to determine the benefit of post-operative CCRT in the patients with resectable non-metastatic
HNnSCCA. Methods: We retrospectively reviewed data of 139 patients with HNnSCCA (excluding nasopharyngeal,
neuroendocrine, and skin cancers) who underwent surgery and post-operative radiation (RT) at Siriraj Hospital from
2009–2015. Results: Ninety-nine of the 139 patients had RT alone and 40 had CCRT. More patients receiving CCRT
had ≥ one high-risk feature (80% CCRT vs. 57.6% RT; p=0.018). Five-year disease-free survival (DFS) and overall
survival (OS) did not differ between the groups (58.6% CCRT vs. 68.2% RT; p=0.35 and 81.7% CCRT vs. 81.0% RT;
p=0.35, respectively). Interestingly, post-operative CCRT was independently associated with significantly superior
DFS (hazard ratio, HR 0.29; 95% confidence interval, CI 0.10 to 0.86; p=0.02) and OS (HR 0.08; 95% CI 0.01 to 0.43;
p=0.003) according to multivariable analyses. Conclusion: Post-operative CCRT was associated with better survival in
high-risk patients with resectable non-metastatic HNnSCCA comparing with post-operative RT alone. Post-operative
CCRT might be considered as a treatment option for these patients.- انتشار مقاله: 17-06-1397
- نویسندگان: Lucksamon Thamlikitkul,Janjira Petsuksiri,Suthinee Ithimakin
- مشاهده