Related Experiment Video
Updated: Jul 5, 2026
The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions
Published on: February 1, 2018
Anti-tumor activity of N-thiolated beta-lactam antibiotics
Di Chen1, Samuel C Falsetti, Michael Frezza
1The Prevention Program, Barbara Ann Karmanos Cancer Institute, Department of Pathology, School of Medicine, Wayne State University, 540.1 HWCRC, 4100 John R Road, Detroit, MI 48201, USA.
Abstract:
An ongoing strategy for cancer treatment is selective induction of apoptosis in cancer over normal cells. N-thiolated beta-lactams were found to induce DNA damage, growth arrest and apoptosis in cultured human cancer cells. However, whether these compounds have a similar effect in vivo has not been studied. We report here that treatment with the beta-lactam L-1 caused a significant inhibition of tumor growth in a breast cancer xenograft mouse model, associated with induction of DNA damage and apoptosis in vivo. These results suggest that the synthetic antibiotic N-thiolated beta-lactams hold great potential to be developed as novel anti-cancer drugs.
Insights
N-thiolated beta-lactams, like L-1, show promise as novel anti-cancer drugs. This study demonstrates their ability to inhibit tumor growth and induce apoptosis in vivo, offering a new strategy for cancer treatment.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Selective induction of apoptosis in cancer cells is a key cancer treatment strategy.
- N-thiolated beta-lactams have demonstrated the ability to induce DNA damage, growth arrest, and apoptosis in human cancer cells in vitro.
- The in vivo efficacy of these compounds remained uninvestigated.
Purpose of the Study:
- To investigate the in vivo anti-cancer effects of N-thiolated beta-lactams.
- To evaluate the potential of beta-lactam L-1 as a novel anti-cancer therapeutic agent.
Main Methods:
- A breast cancer xenograft mouse model was utilized.
- Mice were treated with the beta-lactam L-1.
- Tumor growth inhibition, DNA damage, and apoptosis were assessed in vivo.
Main Results:
- Treatment with beta-lactam L-1 significantly inhibited tumor growth in the breast cancer xenograft model.
- In vivo administration of L-1 induced DNA damage and apoptosis in tumor cells.
- The observed effects were specific to cancer cells, aligning with the goal of selective apoptosis induction.
Conclusions:
- N-thiolated beta-lactams, exemplified by L-1, exhibit significant anti-cancer activity in vivo.
- These compounds demonstrate potential for development into novel therapeutic drugs for cancer treatment.
- The induction of DNA damage and apoptosis in vivo supports their mechanism of action.
