Open Access

KRAS mutations and their associations with clinicopathological features and survival in Vietnamese non‑polyp colon cancer patients

  • Authors:
    • Hoang Minh Cuong
    • Vu Hong Thang
    • Bui-Thi Thu Huong
    • Nguyen Thuan Loi
    • Nguyen Minh Duc
  • View Affiliations

  • Published online on: June 30, 2023     https://doi.org/10.3892/mco.2023.2659
  • Article Number: 63
  • Copyright: © Minh Cuong et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

The aim of the present study was to determine Kirsten Ras sarcoma virus (KRAS) mutations and the associations of KRAS mutations with clinicopathological features and treatment outcomes in Vietnamese non‑polyp colon cancer (NPCC) patients. The data in the present study covered 194 patients with non‑polyp colon cancers at stages II or III, according to the 8th edition of the American Joint Committee on Cancer staging system, in northern Vietnam from January 2016 to August 2020. All patients underwent radical surgery and adjuvant therapy with FOLFOX4 or XELOX. Subsequently, the recruited patients were followed‑up with scheduled hospital exams for diagnosing recurrence. Genomic DNA samples were prepared from dissected tumors and specific sequences of the KRAS gene were amplified by polymerase chain reactions (PCR). The mutations at codons 12, 13, 59, 60, 61, 117 and 146 of the gene were determined. Possible associations of the KRAS mutations with clinicopathological properties and the survival of patients were analysed. The KRAS mutation rate was 47.9% in Vietnamese patients with NPCC, of those, mutations in exon 2 accounted for 91.4% of all detected mutations. The mutated‑KRAS patients exhibited a significantly higher rate of anemia. Moreover, the KRAS mutation rate was higher in females (57.1%) than in males (39.8%). The KRAS mutation rate was also higher in patients with right colon cancers. Furthermore, KRAS mutations were an independent prognosis for poor disease‑free survival (DFS) and overall survival (OS) in stage II patients. Among left‑sided colon patients, mutated KRAS was a significant predictive factor for poor DFS but not for OS. The present study revealed a very high mutation rate of KRAS in Vietnamese patients with NPCC. The data of the present study indicated that the mutation status was associated with female patients and right‑sided tumors. The KRAS mutations were a negative factor for the survival of patients with stage II NPCC and patients with left‑sided colon cancer.
View Figures
View References

Related Articles

Journal Cover

August-2023
Volume 19 Issue 2

Print ISSN: 2049-9450
Online ISSN:2049-9469

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Minh Cuong H, Hong Thang V, Thu Huong B, Thuan Loi N and Minh Duc N: <em>KRAS</em> mutations and their associations with clinicopathological features and survival in Vietnamese non‑polyp colon cancer patients. Mol Clin Oncol 19: 63, 2023
APA
Minh Cuong, H., Hong Thang, V., Thu Huong, B., Thuan Loi, N., & Minh Duc, N. (2023). <em>KRAS</em> mutations and their associations with clinicopathological features and survival in Vietnamese non‑polyp colon cancer patients. Molecular and Clinical Oncology, 19, 63. https://doi.org/10.3892/mco.2023.2659
MLA
Minh Cuong, H., Hong Thang, V., Thu Huong, B., Thuan Loi, N., Minh Duc, N."<em>KRAS</em> mutations and their associations with clinicopathological features and survival in Vietnamese non‑polyp colon cancer patients". Molecular and Clinical Oncology 19.2 (2023): 63.
Chicago
Minh Cuong, H., Hong Thang, V., Thu Huong, B., Thuan Loi, N., Minh Duc, N."<em>KRAS</em> mutations and their associations with clinicopathological features and survival in Vietnamese non‑polyp colon cancer patients". Molecular and Clinical Oncology 19, no. 2 (2023): 63. https://doi.org/10.3892/mco.2023.2659