Related Experiment Video
Updated: Jul 1, 2026

Exploring the Pharmacological Action and Molecular Mechanism of Salidroside in Inhibiting MCF-7 Cell Proliferation and Migration
Published on: June 9, 2023
Drug discovery approaches targeting the PI3K/Akt pathway in cancer
C Garcia-Echeverria1, W R Sellers
1Oncology Drug Discovery, Novartis Institutes for Biomedical Research, Basel, Switzerland. carlos.garcia-echeverria@novartis.com
Abstract:
The abnormal activation of the phosphatidylinositol 3-kinase (PI3K)/Akt pathway has been validated by epidemiological and experimental studies as an essential step toward the initiation and maintenance of human tumors. Notable in this regard are the prevalent somatic genetic alterations leading to the inactivation of the tumor suppressor gene PTEN and gain-of-function mutations targeting PIK3CA--the gene encoding the catalytic phosphosinositide-3 kinase subunit p110 alpha. A number of the intracellular components of this pathway have been targeted as anticancer drug discovery activities leading to the current panoply of clinical trials of inhibitors of PI3K, Akt and HSP90 in man. This review summarizes current preclinical knowledge of modulators of the PI3K/Akt pathway in which drug discovery and development activities have been advanced focusing on both the relevant clinical stage inhibitors and other disclosed tool compounds targeting PI3K, PDK1, Akt and HSP90.
Insights
The phosphatidylinositol 3-kinase (PI3K)/Akt pathway is crucial in human tumors. This review covers preclinical knowledge of PI3K/Akt pathway modulators, including clinical stage inhibitors and tool compounds.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- The PI3K/Akt pathway is frequently activated in human cancers.
- Genetic alterations like PTEN inactivation and PIK3CA mutations drive pathway activation.
- This pathway is a key target for anticancer drug development.
Purpose of the Study:
- To review preclinical knowledge of PI3K/Akt pathway modulators.
- To focus on drug discovery and development activities.
- To highlight clinical stage inhibitors and tool compounds.
Main Methods:
- Literature review of preclinical studies.
- Analysis of drug discovery and development data.
- Focus on inhibitors targeting PI3K, PDK1, Akt, and HSP90.
Main Results:
- Numerous PI3K/Akt pathway modulators are under investigation.
- Clinical trials are ongoing for inhibitors of PI3K, Akt, and HSP90.
- Preclinical data supports the development of targeted therapies.
Conclusions:
- The PI3K/Akt pathway remains a significant target for cancer therapy.
- Continued research into pathway modulators is essential for advancing cancer treatment.
- Development of specific inhibitors shows promise for clinical application.
Related Concept Videos
PI3K/mTOR/AKT Signaling Pathway
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Inhibition of Cdk Activity
Inhibition of CDK Activity