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Updated: Mar 20, 2026

Assessing Specificity of Anticancer Drugs In Vitro
Published on: March 23, 2016
AKT in cancer: new molecular insights and advances in drug development
Prabhjot S Mundi1,2, Jasgit Sachdev3, Carolyn McCourt4
1Division of Medical Oncology, College of Physicians and Surgeons, Columbia University Medical Center, New York, NY, USA.
Abstract:
The phosphatidylinositol-3 kinase (PI3K)-AKT pathway is one of the most commonly dysregulated pathways in all of cancer, with somatic mutations, copy number alterations, aberrant epigenetic regulation and increased expression in a number of cancers. The carefully maintained homeostatic balance of cell division and growth on one hand, and programmed cell death on the other, is universally disturbed in tumorigenesis, and downstream effectors of the PI3K-AKT pathway play an important role in this disturbance. With a wide array of downstream effectors involved in cell survival and proliferation, the well-characterized direct interactions of AKT make it a highly attractive yet elusive target for cancer therapy. Here, we review the salient features of this pathway, evidence of its role in promoting tumorigenesis and recent progress in the development of therapeutic agents that target AKT.
Insights
The phosphatidylinositol-3 kinase (PI3K)-AKT pathway is frequently altered in cancer, disrupting cell division and growth. Targeting AKT, a key player in this pathway, shows promise for novel cancer therapies.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- The phosphatidylinositol-3 kinase (PI3K)-AKT pathway is a critical regulator of cell survival, growth, and metabolism.
- This pathway is frequently dysregulated in various human cancers through genetic mutations, copy number alterations, and epigenetic changes.
- Dysregulation of the PI3K-AKT pathway disrupts the balance between cell proliferation and programmed cell death, contributing to tumorigenesis.
Purpose of the Study:
- To review the key features of the PI3K-AKT pathway.
- To summarize the evidence linking PI3K-AKT pathway dysregulation to cancer development.
- To discuss recent advancements in developing therapeutic agents targeting AKT for cancer treatment.
Main Methods:
- Literature review of the PI3K-AKT pathway.
- Analysis of evidence for the pathway's role in tumorigenesis.
- Survey of current therapeutic strategies targeting AKT.
Main Results:
- The PI3K-AKT pathway is a central regulator of cell homeostasis.
- Aberrant PI3K-AKT signaling is a hallmark of many cancers.
- AKT's downstream effectors are crucial for cancer cell survival and proliferation.
- Targeting AKT presents a promising therapeutic avenue.
Conclusions:
- The PI3K-AKT pathway is a significant driver of cancer.
- AKT is an attractive, albeit challenging, therapeutic target.
- Ongoing research focuses on developing effective AKT-targeting agents for cancer therapy.
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