Related Experiment Video
Updated: Jun 20, 2026

Examining BCL-2 Family Function with Large Unilamellar Vesicles
Published on: October 5, 2012
Targeting the Bcl-2
Mehul P Patel1, Aisha Masood, Priya S Patel
1Department of Medicine, Roswell Park Cancer Institute, Buffalo, New York 14263, USA.
Purpose Of Review:
Members of the Bcl-2 family of proteins are critical components in regulating the intrinsic apoptotic pathway. Bcl-2 protein overexpression is associated with drug resistance and poor clinical outcome in cancer patients. Preclinical and clinical evaluations demonstrate that downregulation of Bcl-2 restores the intrinsic apoptotic pathways with antitumor effects. Thus, Bcl-2 is aggressively pursued as a therapeutic target in cancer with several new drugs undergoing clinical investigations. In this manuscript, we will review clinical information on some of the novel compounds specifically designed to target the Bcl-2 gene product(s).
Recent Findings:
Extensive clinical evaluations using a Bcl-2-specific antisense have resulted in an overall disappointing experience. But new small molecule inhibitors of the Bcl-2 hold promise with high target affinity, ease of administration and improved toxicity profile. Early stage clinical trials of these agents are revealing promising results alone as well as in combination with existing anticancer therapeutics. Encouraging results from some of these clinical investigations are summarized in this review.
Summary:
Downregulation of Bcl-2 and restoration of a critical apoptotic pathway in cancer cells remains an important strategy. Novel Bcl-2 inhibitors have started to deliver the therapeutic promise of this target-specific quest.
Insights
Targeting the Bcl-2 (B-cell lymphoma 2) protein is a promising cancer treatment strategy. Novel small molecule inhibitors show potential in restoring apoptosis and improving outcomes, offering new hope for patients.
Area of Science:
- Oncology
- Molecular Biology
- Cancer Therapeutics
Background:
- The Bcl-2 family regulates apoptosis, a critical process in cancer development.
- Bcl-2 overexpression correlates with drug resistance and poor prognosis in cancer patients.
- Targeting Bcl-2 aims to restore apoptosis and enhance anti-cancer effects.
Purpose of the Study:
- To review clinical data on novel compounds targeting Bcl-2.
- To evaluate the therapeutic potential of Bcl-2 inhibitors in cancer treatment.
Main Methods:
- Review of clinical trial data for Bcl-2 targeting agents.
- Analysis of preclinical and clinical evaluations of Bcl-2 downregulation strategies.
Main Results:
- Bcl-2 antisense therapies yielded disappointing clinical results.
- New small molecule Bcl-2 inhibitors demonstrate high target affinity and improved safety.
- Early clinical trials show promising efficacy of Bcl-2 inhibitors, both as monotherapy and in combination treatments.
Conclusions:
- Bcl-2 downregulation remains a key strategy for cancer therapy.
- Novel Bcl-2 inhibitors are beginning to fulfill the therapeutic promise of targeting this pathway.
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
Targeted Cancer Therapies
There are several types of targeted therapies against specific...
The Intrinsic Apoptotic Pathway
Combination Therapies and Personalized Medicine
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
Inhibition of Cdk Activity
Cellular Injury V: Apoptosis and Autophagy
