Related Experiment Videos
Apoptosis induced by modified ribonucleosides in human cell culture systems
H Meisel1, S Günther, D Martin
1Bundesanstalt für Milchforschung, Institut für Chemie und Physik, Kiel, Germany. meisel@bafm.de
Abstract:
The in vitro modulation of apoptosis and cell proliferation by modified in comparison with non-modified ribonucleosides was investigated for the first time using peripheral blood lymphocytes, HL-60 cells and Caco-2 cells as human cell culture models. Modulating effects of several ribonucleosides were found in the range of 10(-7)-10(-3) mol/l. The following ribonucleosides induced significant apoptosis of HL-60 cells: adenosine, N6-dimethyladenosine, N6-(2-isopentenyl)-adenosine, N2-dimethylguanosine. A significant apoptotic effect on PBL was found with N6-dimethyladenosine and N6-(2-isopentenyl)-adenosine. N6-Dimethyladenosine, N6-(2-isopentenyl)-adenosine and guanosine had a pronounced inhibitory effect on Caco-2 cell apoptosis. Regarding the known function of ribonucleosides as pathobiochemical marker molecules for cancer, the possibility of a selective apoptotic effect against malignant cells is discussed.
Insights
Modified ribonucleosides can selectively induce apoptosis in cancer cells. This study investigated their effects on human cell models, revealing potential therapeutic applications for cancer treatment.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Ribonucleosides play crucial roles in cellular processes.
- Aberrant cell proliferation and apoptosis are hallmarks of cancer.
- Understanding ribonucleoside function is key to cancer research.
Purpose of the Study:
- To investigate the in vitro modulation of apoptosis and cell proliferation by modified versus non-modified ribonucleosides.
- To explore the potential of ribonucleosides as selective anti-cancer agents.
Main Methods:
- Utilized human cell culture models: peripheral blood lymphocytes (PBL), HL-60 cells (leukemia), and Caco-2 cells (colon adenocarcinoma).
- Assessed the effects of various ribonucleosides at concentrations ranging from 10(-7) to 10(-3) mol/l.
- Quantified modulation of apoptosis and cell proliferation.
Main Results:
- Several ribonucleosides demonstrated modulating effects on apoptosis and proliferation.
- Adenosine, N6-dimethyladenosine, N6-(2-isopentenyl)-adenosine, and N2-dimethylguanosine induced significant apoptosis in HL-60 cells.
- N6-dimethyladenosine and N6-(2-isopentenyl)-adenosine showed significant apoptotic effects on PBL.
- N6-dimethyladenosine, N6-(2-isopentenyl)-adenosine, and guanosine inhibited apoptosis in Caco-2 cells.
Conclusions:
- Modified ribonucleosides exhibit selective apoptotic effects on malignant cell lines.
- These findings suggest potential for developing targeted cancer therapies based on ribonucleoside modulation.
- Ribonucleosides may serve as pathobiochemical markers in cancer, with therapeutic implications.