Analysis of K-ras gene mutation status in 314 Chinese patients with gastric cancer / 国际检验医学杂志

ABSTRACT

Objective To analyze the mutation status of K‐ras gene in the patients with gastric cancer to provide the guidance for the personalized therapy of gastric cancer .Methods The nested and Cold‐PCR were adopted to analyze the K‐ras gene mutation status in 314 cases of gastric cancer .Results In 314 cases of gastric cancer ,the total mutation rate of K‐ras gene was 7 .32% .The mutation rate was 0% in 19 plasma samples and 7 .80% in 295 tissue samples .The types of mutation included G12D ,G13D ,G12V , the mutation rate of K‐ras gene had no statistically significant difference between the two kinds of different samples (P=0 .206 1);the mutation rate was 6 .79% in 221 male patients ,the types of mutation included G12D ,G13D ,the mutation frequency is 8 .60% in 221 female patients ,the types of mutation include G12D ,G13D ,G12V ,the mutation rate of K‐ras gene had no statistically signifi‐cant difference between different genders (P=0 .573 1);the mutation rate was 6 .67% in 45 youth patients ,the types of mutation included G12D ,G13D ,the mutation rate was 7 .87% in 127 middle age patients ,the types of mutation included G12D ,G13D ,G12V , the mutation rate was 7 .04% in 142 old age patients ,the types of mutation included G12D ,G13D ,there was no statistically signifi‐cant difference among different age patients (P=0 .995 3) .Conclusion The mutation rate of K‐ras gene is 7 .32% in 314 cases of gastric cancer ,the main mutation types include G12D and G13D ,and the mutation rate of K‐ras gene has no significant difference a‐mong different samples ,between different sexes and among different ages .