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Poly(ADP-ribosylation) and apoptosis
1Istituto di Genetica Biochimica ed Evoluzionistica del C.N.R., Pavia, Italy.
Abstract:
Poly(ADP-ribosylation) is a post-translational modification playing a relevant role in DNA damage recovery, DNA replication and viral integration. Several reports also suggest a modulation of this process during cell death by apoptosis. The aim of this review is to discuss the possible involvement of poly(ADP-ribosylation) during apoptosis, by dealing with general considerations on apoptosis, and further examining the correlation between NAD consumption and cell death, the regulation of poly(ADP-ribose) metabolism in apoptotic cells, the effect of poly(ADP-ribose) polymerase inhibition on cell death occurrence and the use of enzyme cleavage as a marker of apoptosis. Finally, the future prospects of the research in this area will be addressed.
Insights
Poly(ADP-ribosylation), a key DNA repair process, is modulated during apoptosis (programmed cell death). This review explores its role in cell death, NAD+ consumption, and potential as an apoptosis marker.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Poly(ADP-ribosylation) is a crucial post-translational modification involved in DNA repair, replication, and viral integration.
- Emerging evidence suggests poly(ADP-ribosylation) plays a role in regulating apoptosis, or programmed cell death.
Purpose of the Study:
- To review the involvement of poly(ADP-ribosylation) in apoptosis.
- To examine the correlation between NAD+ consumption and cell death.
- To discuss the regulation of poly(ADP-ribose) metabolism during apoptosis.
Main Methods:
- Literature review of studies on poly(ADP-ribosylation) and apoptosis.
- Analysis of NAD+ consumption in apoptotic cells.
- Examination of poly(ADP-ribose) polymerase inhibitor effects on cell death.
- Review of enzyme cleavage as an apoptosis marker.
Main Results:
- Poly(ADP-ribosylation) dynamics are altered during apoptosis.
- NAD+ depletion is linked to cell death pathways.
- Poly(ADP-ribose) polymerase inhibition can influence apoptosis occurrence.
- Enzyme cleavage related to poly(ADP-ribosylation) may serve as an apoptosis biomarker.
Conclusions:
- Poly(ADP-ribosylation) is intricately linked to the apoptotic process.
- Further research is needed to fully elucidate the role and therapeutic potential of poly(ADP-ribosylation) in apoptosis.