Relationship between Mutations of KRAS，NRAS and BRAF Genes and Colorectal Liver Metastases

Haimei GOU; Li FANG; Xiaowu ZHONG

doi:10.12259/j.issn.2095-610X.S20230106

Volume 44 Issue 1

Jan. 2023

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Haimei GOU, Li FANG, Xiaowu ZHONG. Relationship between Mutations of KRAS，NRAS and BRAF Genes and Colorectal Liver Metastases[J]. Journal of Kunming Medical University, 2023, 44(1): 19-24. doi: 10.12259/j.issn.2095-610X.S20230106

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Haimei GOU, Li FANG, Xiaowu ZHONG. Relationship between Mutations of KRAS，NRAS and BRAF Genes and Colorectal Liver Metastases[J]. Journal of Kunming Medical University, 2023, 44(1): 19-24. doi: 10.12259/j.issn.2095-610X.S20230106

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Relationship between Mutations of KRAS，NRAS and BRAF Genes and Colorectal Liver Metastases

doi: 10.12259/j.issn.2095-610X.S20230106

Haimei GOU^{1, 2},
Li FANG^{1, 2},
Xiaowu ZHONG^{1, 2, 3
,
,}

1.
Dept. of Clinical Laboratory，The Affiliated Hospital of North Sichuan Medical College，Nanchong Sichuan 637000
2.
Dept. of Laboratory Medicine
3.
Translational Medicine Research Center，North Sichuan Medical College，Nanchong Sichuan 637007，China

Received Date: 2022-10-26
Available Online: 2022-12-24
Publish Date: 2023-01-18

Abstract

Abstract

Objective To investigate the relationship between KRAS, NRAS and BRAF gene mutations and liver metastasis in colorectal cancer. Methods A total of 246 colorectal cancer tissue specimens were collected from the Affiliated Hospital of North Sichuan Medical College from January 2019 to October 2021. KRAS, BRAF and PIK3CA mutations analysis were performed with ARMS method and fluorescence PCR technology. Clinical data were collected and the relationship between KRAS, NRAS and BRAF gene mutations and liver metastasis were analyzed. Results The mutation rates of KRAS, NRAS and BRAF were 45.93% （113/246）, 6.10% （15/246） and 4.87% （12/246） in 246 colorectal cancer cases, respectively. NRAS gene mutation was associated with synchronous colorectal liver metastasis. The frequency of liver metastasis was higher in the NRAS mutation group at the time of colorectal cancer diagnosis （P = 0.005）, but there was no significant difference in the frequency of liver metastasis within 1a between the NRAS mutant group and the wild group as the disease progresses （P = 0.155）. Multivariate Logistic regression analysis showed that NRAS mutation was an independent risk factor for synchronous colorectal cancer liver metastasis （OR = 9.974, P = 0.008）. KRAS and BRAF mutations had no significant correlation with liver metastasis （P > 0.05）. Conclusion Colorectal cancer patients with NRAS gene mutation are prone to liver metastasis in the early stage. NRAS gene mutation detection not only plays an important role in targeted therapy, but also in the early evaluation of liver metastasis.
- Colorectal cancer,
- Liver metastasis,
- KRAS,
- NRAS,
- BRAF

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References(18)

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