Effects of Nitric Oxide on Apoptosis
Author Information
Author(s): Bagci Elife Z., Vodovotz Yoram, Billiar Timothy R., Ermentrout Bard, Bahar Ivet
Primary Institution: University of Pittsburgh
Hypothesis
The study proposes a mathematical model to simulate the effects of nitric oxide (NO) on apoptosis.
Conclusion
The study concludes that the timing and concentration of nitric oxide production significantly influence whether it has a pro-apoptotic or anti-apoptotic effect.
Supporting Evidence
- The model predicts that the balance of pro- and anti-apoptotic effects of nitric oxide is determined by its concentration and timing.
- Transient apoptotic effects can occur under specific conditions, even if the overall effect favors cell survival.
- Different cell types may respond differently to nitric oxide based on their intracellular environments.
Takeaway
Nitric oxide can either help cells live or cause them to die, depending on how much is present and when it's made.
Methodology
The study uses a mathematical model that integrates apoptotic pathways with nitric oxide-related reactions to simulate their effects.
Limitations
The model relies on estimated kinetic parameters and lacks precise intracellular rate constants for reactions.
Digital Object Identifier (DOI)
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