Gastric Cancer Prognosis Linked to Molecular Target

Strategic Insights -

Researchers in Suita, Japan have identified a molecular target associated with the progression of gastric cancer, a tumor suppressor gene called FBXW7. This gene is transcriptionally controlled by p53 and plays a crucial role in cell cycle regulation. The study found that low expression levels of FBXW7 in primary gastric cancer contributed to malignant potential, such as lymph node metastasis, tumor size, and poor prognosis.

Key Takeaways:

  • The study examined FBXW7 mRNA expression in 100 cases of gastric cancer and found that low expression levels contributed to malignant potential.
  • Low FBXW7 expression levels were associated with lymph node metastasis, tumor size, and poor prognosis.
  • The study revealed a significant relationship between p53 mutation and FBXW7 expression, with 29 cases with the p53 mutation exhibiting lower expression levels of FBXW7.
  • Gastric cancer patients with low FBXW7 expression levels and p53 mutation had a distinctly poor prognosis compared to other subgroups.
  • The researchers concluded that disruption of both p53 and FBXW7 contributes to poor prognosis in gastric cancer cases.

Statistics:

  • 100 cases of gastric cancer were examined in the study.
  • 52 cases of gastric cancer without the p53 mutation were compared to 29 cases with the mutation.
  • Low FBXW7 expression levels were associated with lymph node metastasis (P = 0.0012), tumor size (P = 0.0003), and poor prognosis (P = 0.018).
  • Gastric cancer patients with low FBXW7 expression levels and p53 mutation had a distinctly poor prognosis (P = 0.0033).

Sources:

  • Yokobori, T., et al. (2009). p53-Altered FBXW7 Expression Determines Poor Prognosis in Gastric Cancer Cases. Cancer Research, 69(9), 3788-3794.
  • Cancer Weekly. (2009). Gastric Cancer Prognosis Linked to Molecular Target. NewsRx.com.