The role of the PI3K pathway in colorectal cancer

Dionysios Papadatos-Pastos1, Roy Rabbie1, Paul Ross1

  • 1Department of Medical Oncology, Guy's and St. Thomas' NHS Foundation Trust, UK.

Insights

Targeting the phosphatidyl-inositol 3-kinase (PI3K) pathway offers a promising avenue for colorectal cancer (CRC) treatment. Further research into PI3K-targeted therapies is crucial for improving patient outcomes in CRC.

Area of Science:

  • Oncology
  • Molecular Biology
  • Pharmacology

Background:

  • Colorectal cancer (CRC) treatment has advanced with new chemotherapy and targeted therapies.
  • The phosphatidyl-inositol 3-kinase (PI3K) pathway is frequently deregulated in CRC.
  • Identifying druggable targets is key to improving CRC treatment.

Purpose of the Study:

  • To review the role of the PI3K pathway in CRC development and progression.
  • To discuss current and ongoing clinical trials targeting the PI3K pathway in CRC.
  • To suggest optimizations for future research in PI3K-targeted CRC therapies.

Main Methods:

  • Literature review of PI3K's role in CRC.
  • Analysis of data from clinical trials targeting the PI3K pathway.
  • Synthesis of information to guide future research strategies.

Main Results:

  • The PI3K pathway plays a significant role in CRC development and progression.
  • Clinical trials targeting PI3K show potential for CRC treatment.
  • Further research is needed to optimize PI3K-targeted therapies.

Conclusions:

  • Targeting the PI3K pathway is a promising strategy for CRC treatment.
  • Optimizing PI3K-targeted therapies can enhance patient benefits.
  • Continued research is essential for advancing CRC care.

Related Concept Videos

PI3K/mTOR/AKT Signaling Pathway01:22

PI3K/mTOR/AKT Signaling Pathway

The mammalian target of rapamycin  (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1  (mTORC1) and mTOR complex 2  (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast,  mTORC2 consists of a...
6.5K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
5.1K
mTOR Signaling and Cancer Progression03:03

mTOR Signaling and Cancer Progression

1.8K
Interactions Between Signaling Pathways01:19

Interactions Between Signaling Pathways

Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
8.0K
The Ras Gene02:38

The Ras Gene

The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a...
7.6K
The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
14.2K