Targeting the PI3K/Akt signaling pathway in gastric carcinoma: A reality for personalized medicine?

Shikha Satendra Singh1, Wei Ney Yap1, Frank Arfuso1

  • 1Shikha Satendra Singh, Wei Ney Yap, Shreya Kar, Chao Wang, Wanpei Cai, Gautam Sethi, Alan Prem Kumar, Cancer Science Institute of Singapore, National University of Singapore, Singapore City 117597, Singapore.

Insights

The phosphatidylinositol-3 kinases (PI3K)/Akt/mTOR pathway is frequently activated in gastric cancer. Targeting this pathway with inhibitors and using predictive biomarkers can lead to more personalized and effective gastric cancer therapy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Signaling

Background:

  • The phosphatidylinositol-3 kinases (PI3K)/Akt/mTOR pathway is frequently dysregulated in gastric cancer (GC) due to genetic alterations like PIK3CA mutations or PTEN loss.
  • This dysregulation contributes significantly to gastric oncogenesis, highlighting the need for targeted therapeutic strategies.

Purpose of the Study:

  • To review the common dysregulations of the PI3K/Akt/mTOR pathway in GC.
  • To discuss single and dual pathway inhibitors currently under development for GC treatment.
  • To summarize advancements in predictive biomarkers for personalized therapy.

Main Methods:

  • Literature review of common PI3K/Akt/mTOR pathway dysregulations in GC.
  • Analysis of preclinical and clinical data on PI3K/Akt/mTOR inhibitors for solid tumors, including GC.
  • Summary of recent findings on predictive biomarkers for PI3K/Akt/mTOR targeted therapies.

Main Results:

  • Frequent activation of the PI3K/Akt/mTOR pathway is observed in GC.
  • Various single and dual inhibitors targeting this pathway are in development for GC.
  • Predictive biomarkers are crucial for identifying patients who will benefit from these targeted therapies.

Conclusions:

  • Targeted inhibition of the PI3K/Akt/mTOR pathway holds promise for GC treatment.
  • The development and application of predictive biomarkers are essential for personalized medicine approaches in GC.
  • Combining pathway inhibitors with predictive biomarkers can enhance therapeutic efficacy and specificity in gastric cancer.

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