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Non-peptidic small molecule inhibitors against Bcl-2 for cancer therapy
Asfar S Azmi1, Ramzi M Mohammad
1Department of Pathology, Wayne State University School of Medicine, Detroit Michigan, USA.
Abstract:
A critical regulator of the apoptotic machinery is the Bcl-2 family proteins whose over expression confers a protective effect on malignant cells against death signals of apoptosis. Cancer cells that are resistant to various anti-cancer drugs and treatment regimen are found to over express these Bcl-2 proteins such as Bcl-2, Bcl-X(L), Mcl-1, Bcl-w, and A1/Bfl1. In recent years there has been an exponential growth in the identification as well as synthesis of non-peptidic cell permeable small-molecule inhibitors (SMIs) of protein-protein interaction. The focus of this article is on inhibitors of anti-apoptotic protein Bcl-2. This review summarizes an up to date knowledge of the available SMIs, their mode of action as well as their current status in preclinical as well as clinical development.
Insights
Small-molecule inhibitors targeting anti-apoptotic Bcl-2 proteins offer a promising strategy against drug-resistant cancers. This review details their development and clinical progress.
Area of Science:
- Molecular Biology
- Biochemistry
- Oncology
Background:
- Bcl-2 family proteins are critical regulators of apoptosis and are often overexpressed in cancer cells, conferring resistance to chemotherapy.
- Overexpression of anti-apoptotic proteins like Bcl-2, Bcl-X(L), Mcl-1, Bcl-w, and A1/Bfl1 contributes to malignant cell survival and drug resistance.
Purpose of the Study:
- To review the current landscape of small-molecule inhibitors (SMIs) targeting anti-apoptotic Bcl-2 proteins.
- To summarize the mode of action and developmental status of these inhibitors.
Main Methods:
- Literature review of scientific publications and clinical trial data.
- Analysis of small-molecule inhibitors (SMIs) targeting protein-protein interactions within the Bcl-2 family.
Main Results:
- Significant progress has been made in identifying and synthesizing non-peptidic, cell-permeable SMIs of Bcl-2 proteins.
- These inhibitors demonstrate potential in preclinical and clinical development for overcoming cancer cell resistance.
Conclusions:
- Small-molecule inhibitors targeting anti-apoptotic Bcl-2 proteins represent a promising therapeutic avenue for cancer treatment.
- Further development and clinical evaluation are ongoing for these novel anti-cancer agents.
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