Journals / Journal of Contemporary Medicine / 2022 / Cilt: 12 - Sayı: 1

Clinicopathologic features and KRAS mutation incidence of gastric carcinomas

Mide Kanserlerinin Klinikopatolojik Özellikleri ve KRAS-mutasyon İnsidansı

Pages
1–5
Publication Date
2022-01-15
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Although KRAS mutation in GAC alone is not a prognostic or predictive marker, subtype-specific analysis may provide data that may affect the diagnosis, management and treatment of the disease

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: This study aims to determine the frequency of KRAS mutations in patients with gastric adenocarcinoma (GAC) in Hatay province, and to determine the relationship of this mutation with some pathological and clinical parameters and to guide the diagnosis and treatment planning of patients.
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Key Findings & Data:Real-Time Polymerase Chain Reaction (RT-PCR) system was used to identify mutations of codons 12 and 13 (exon 2) of the RAS gene.
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Conclusion & Impact:Although KRAS mutation in GAC alone is not a prognostic or predictive marker, subtype-specific analysis may provide data that may affect the diagnosis, management and treatment of the disease
🔬Design:Research Article
📍Scope:2010 Verileri
⚙️Variables:KRAS · mide kanseri · G12D

Abstract

Objectives: This study aims to determine the frequency of KRAS mutations in patients with gastric adenocarcinoma (GAC) in Hatay province, and to determine the relationship of this mutation with some pathological and clinical parameters and to guide the diagnosis and treatment planning of patients. Methods: Formalin-fixed, paraffin-embedded, and histologically confirmed samples were used in the assessment of KRAS mutation. Sections were taken from the archive tissue samples of each case. Real-Time Polymerase Chain Reaction (RT-PCR) system was used to identify mutations of codons 12 and 13 (exon 2) of the RAS gene. Mutations of GLY12ALA (G12A), GLY12ASP (G12D), GLY12ARG (G12R), GLY12CYS (G12C), GLY12SER (G12S), GLY12VAL (G12V), GLY13ASP (G13D) were performed. Results: The mutation rate of KRAS was 2% and only one substitution, G12D, was detected. In this case, the tumor was located in the small curvature. Since the number of cases with mutations was low, statistical comparison could not be made between KRAS mutation and clinicopathological factors. A significant difference was found between tumor differentiation and WHO-2010 typing and primary tumor stage. Conclusions: We found the incidence of KRAS mutation to be 2%. We also estimate that the G12D mutation may be associated with GAC site and surgical margin. Although KRAS mutation in GAC alone is not a prognostic or predictive marker, subtype-specific analysis may provide data that may affect the diagnosis, management and treatment of the disease

Özet

Amaç: Bu çalışmanın amacı, Hatay ilinde mide adenokarsinomlu (GAC) hastalarda KRAS mutasyonlarının sıklığını, bu mutasyonun bazı patolojik ve klinik parametrelerle ilişkisini belirlemek, hastaların tanı ve tedavi planlamasına rehberlik etmektir. Gereç ve Yöntem: KRAS mutasyonunun değerlendirilmesinde formalinle fikse, parafine gömülmüş ve histolojik olarak tanıları doğrulanmış örnekler kullanıldı. Her vakanın arşiv doku örneklerinden kesitler alındı. RAS geninin 12 ve 13 kodonlarının (ekson 2) mutasyonlarını belirlemek için Gerçek Zamanlı Polimeraz Zincir Reaksiyonu (RT-PCR) sistemi kullanıldı. GLY12ALA (G12A), GLY12ASP (G12D), GLY12ARG (G12R), GLY12CYS (G12C), GLY12SER (G12S), GLY12VAL (G12V), GLY13ASP (G13D) mutasyonları çalışıldı. Bulgular: KRAS mutasyon oranı %2 idi ve sadece G12D tespit edildi. Bu olguda, tümör küçük kurvatur yerleşimliydi. Mutasyonlu olgu sayısı az olduğundan KRAS mutasyonu ile klinikopatolojik faktörler arasında istatistiksel karşılaştırma yapılamadı. Tümör diferansiyasyonu ile WHO-2010 tiplemesi ve primer tümör evresi arasında anlamlı bir fark bulundu. Sonuç: KRAS mutasyonu insidansını %2 olarak bulduk. GAC'deki KRAS mutasyonu tek başına prognostik veya prediktif bir belirteç olmasa da, alt tipe özgü analiz, hastalığın tanısını, yönetimini ve tedavisini etkileyebilecek veriler sağlayabilir.

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Cite This Article

GÜRSOY, D., SEÇİNTİ, İ. E., DOĞAN, E., TEMİZ, M. (2022). Clinicopathologic features and KRAS mutation incidence of gastric carcinomas. Journal of Contemporary Medicine, Cilt: 12 - Sayı: 1, 1–5. https://ajindex.com/articles/774879

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References (14)

  1. IARC-2019. International Agency for Research on Cancer. http://gco.iarc.fr/today/home. Date of access: September 13, 2019
  2. Ferlay J, Soerjomataram I, Dikshit R, Eser S, Mathers C, Rebelo M, et al. Cancer incidence and mortality worldwide: sources, methods and major patterns in GLOBOCAN 2012. Int J Cancer 2015;136:E359-66
  3. Arnold M, Karim-Kos HE, Coebergh JW, Byrnes G, Antilla A, Ferlay J, et al. Recent trends in incidence of five common cancers in 26 European countries since 1988: analysis of the European Cancer Observatory. Eur. J Cancer 2015;51:1164-87
  4. Ayatollahi H, Tavassoli A, Jafarian AH, Alavi A, Shakeri S, Shams SF, et al. KRAS codon 12 and 13 mutations in gastric cancer in the northeast Iran. Iran J Pathol 2018;13:167-72
  5. Fu XH, Chen ZT, Wang WH, Fan XJ, Huang Y, Wu XB, et al. KRAS G12V mutation is an adverse prognostic factor of Chinese gastric cancer patients. J Cancer 2019;10:821-8
  6. Qu JL, Qu XJ, Zhao MF, Teng YE, Zhang Y, Hou KZ, et al. Gastric cancer exosomes promote tumour cell proliferation through PI3K/Akt and MAPK/ERK activation. Dig Liver Dis 2009;41:875-80
  7. Kelley JR, Duggan JM. Gastric cancer epidemiology and risk factors. J Clin Epidemiol 2003;56:1-9
  8. Schubbert S, Shannon K, Bollag G. Hyperactive Ras in developmental disorders and cancer. Nat Rev Canc 2007;7:295-308
  9. Hewitt LC, Saito Y, Wang T, Matsuda Y, Oosting J, Silva ANS, et al. KRAS status is related to histological phenotype in gastric cancer: results from a large multicentre study. Gastric Cancer 2019;22:1193-203
  10. Kang JY, Park CK, Yeo CD, Lee HY, Rhee CK, Kim SJ, et al. Comparison of PNA clamping and direct sequencing for detecting KRAS mutations in matched tumour tissue, cell block, pleural effusion and serum from patients with malignant pleural effusion. Respirology 2015;20:138-46
  11. Liu Z-M, Liu L-N, Li M, Zhang Q-P, Cheng S-H, Lu S. Mutation detection of KRAS by high-resolution melting analysis in Chinese with gastric cancer. Oncology Reports 2009;22:515-20
  12. Bosman FT, Carneiro F, Hruban RH, Theise ND. WHO Classification ot Tumours of the Digestive System. (4th). IARC Press. (Lyon). 2010
  13. Van Grieken NC, Aoyama T, Chambers PA, Bottomley D, Ward LC, Inam I, et al. KRAS and BRAF mutations are rare and related to DNA mismatch repair deficiency in gastric cancer from the East and the West: results from a large international multicentre study. Br J Cancer 2013;108:1495-501
  14. TCGA. The Cancer Genome Atlas Research Network. Comprehensi