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Updated: Aug 29, 2026

Flow Cytometric Analysis of Apoptotic Biomarkers in Actinomycin D-Treated SiHa Cervical Cancer Cells
Published on: August 26, 2021
MTS-conjugated-antiactive caspase 3 antibodies inhibit actinomycin D-induced apoptosis
Abstract:
Caspase 3 is critically involved in the pathway of apoptosis. We have conjugated a MTS-transport-peptide to monoclonal and polyclonal anti-caspase-3 antibodies to suppress Actinomycin D-induced apoptosis in human lymphoma T cells. The advantage of using trans-membrane antibodies compared to conventional apoptosis inhibitors is their specific target recognition in the living cell and their lower toxicity compared to conventional apoptosis inhibitors. We could show that a MTS-transport-peptide modified monoclonal anti-caspase-3 antibody reduces Actinomycin D induced apoptosis, as shown by DNA ladder electrophoresis and cell death ELISA. These results indicate that antibodies have a therapeutic potential to inhibit apoptosis in a variety of diseases.
Insights
Researchers developed a novel antibody therapy to inhibit apoptosis, a key process in cell death. This targeted approach shows promise for treating diseases involving unwanted cell death.
Area of Science:
- Cell Biology
- Immunology
- Pharmacology
Background:
- Caspase 3 is a critical enzyme in the apoptosis pathway.
- Apoptosis plays a role in various diseases, making its inhibition a therapeutic target.
- Conventional apoptosis inhibitors can have limitations in specificity and toxicity.
Purpose of the Study:
- To develop and evaluate a novel therapeutic strategy for suppressing apoptosis.
- To investigate the efficacy of MTS-transport-peptide conjugated anti-caspase-3 antibodies in inhibiting apoptosis.
- To assess the potential of trans-membrane antibodies as targeted apoptosis inhibitors.
Main Methods:
- Conjugation of MTS-transport-peptide to monoclonal and polyclonal anti-caspase-3 antibodies.
- Treatment of human lymphoma T cells with modified antibodies and Actinomycin D.
- Assessment of apoptosis using DNA ladder electrophoresis and cell death ELISA.
Main Results:
- MTS-transport-peptide modified monoclonal anti-caspase-3 antibody significantly reduced Actinomycin D-induced apoptosis.
- The trans-membrane antibody approach demonstrated specific target recognition within living cells.
- The novel antibody therapy exhibited lower toxicity compared to conventional apoptosis inhibitors.
Conclusions:
- Antibodies conjugated with MTS-transport-peptide are effective in suppressing caspase-3-mediated apoptosis.
- Trans-membrane antibodies offer a targeted and potentially less toxic alternative for apoptosis inhibition.
- This antibody-based strategy holds therapeutic potential for diseases characterized by excessive apoptosis.
Related Concept Videos
Caspases
The Intrinsic Apoptotic Pathway

