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Identification of Mediators of T-cell Receptor Signaling via the Screening of Chemical Inhibitor Libraries
Published on: January 22, 2019
Phosphoinositide 3-kinase inhibitors in lymphoma
1Department of Medicine, Section of Hematology/Oncology, University of Chicago, Chicago, Illinois, USA.
Purpose Of Review:
The phosphoinositide 3-kinase (PI3K) pathway, with downstream targets including Akt and mammalian target of rapamycin, has been implicated in numerous human cancers, including hematologic malignancies and lymphomas. The development and refinement of PI3K inhibitors directed toward this pathway show promising clinical efficacy. This review will discuss the emerging body of clinical data in lymphoid malignancies and present future directions for research utilizing these inhibitors.
Recent Findings:
The PI3Kδ inhibitor, idelalisib, has been most widely studied in lymphoma, and has shown promising results both as a single agent and in combination with other therapies. IPI-145, a dual inhibitor of PI3Kδ and PI3Kγ, has also shown efficacy and several clinical trials are underway. Other PI3K inhibitors are in active development, with several entering early phase clinical trials.
Summary:
The PI3K pathway appears to be important in lymphoma and targeting this pathway shows promising clinical efficacy.
Insights
Targeting the phosphoinositide 3-kinase (PI3K) pathway with novel inhibitors shows promise for treating lymphomas. Clinical data indicate significant efficacy for PI3K inhibitors in lymphoid malignancies, paving the way for future research.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- The phosphoinositide 3-kinase (PI3K) pathway, including Akt and mTOR, is frequently dysregulated in various human cancers.
- Hematologic malignancies, particularly lymphomas, are known to be influenced by aberrant PI3K pathway signaling.
Purpose of the Study:
- To review current clinical data on PI3K inhibitors in lymphoid malignancies.
- To discuss the efficacy and future directions of PI3K-targeted therapies in lymphoma treatment.
Main Methods:
- Review of emerging clinical trial data and published literature on PI3K inhibitors in lymphoma.
- Analysis of the therapeutic potential of specific PI3K inhibitors, including idelalisib and IPI-145.
Main Results:
- The PI3Kδ inhibitor, idelalisib, has demonstrated efficacy as a monotherapy and in combination regimens for lymphoma.
- IPI-145, a dual PI3Kδ/γ inhibitor, has shown positive results, with ongoing clinical trials.
- Several other PI3K inhibitors are in various stages of clinical development.
Conclusions:
- The PI3K pathway is a critical target in the pathogenesis of lymphoma.
- Targeting the PI3K pathway with specific inhibitors offers a promising therapeutic strategy for lymphoid malignancies.
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