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Updated: Jun 21, 2026
09:15
Monitoring Protein-RNA Interaction Dynamics In Vivo at High Temporal Resolution Using χCRAC
Published on: May 9, 2020
Protective effect of creatine against RNA damage
Carmela Fimognari1, Piero Sestili, Monia Lenzi
1Dipartimento di Farmacologia, Alma Mater Studiorum Università di Bologna, Bologna, Italy. carmela.fimognari@unibo.it
Mutation Research
|July 28, 2009
Summary
RNA damage is understudied but linked to diseases. Creatine protects RNA from some chemical damage, like from hydrogen peroxide and doxorubicin, possibly by scavenging free radicals.
Area of Science:
- Biochemistry
- Molecular Biology
- Toxicology
Background:
- DNA damage is well-studied and linked to diseases, but RNA damage's role in cell physiology and disease is less understood.
- RNA integrity loss is observed in atherosclerosis and neurodegenerative diseases, suggesting its importance in disease pathogenesis.
- Xenobiotic exposure can potentially cause RNA damage, necessitating investigation into protective mechanisms.
Purpose of the Study:
- To investigate the relationship between xenobiotic exposure and RNA damage.
- To evaluate the protective potential of creatine against various RNA-damaging chemicals.
- To elucidate the mechanism underlying creatine's protective activity against RNA damage.
Main Methods:
- Exposure of total RNA to various chemicals including ethyl methanesulfonate (EMS), hydrogen peroxide (H2O2), doxorubicin, spermine NONOate, and S-nitroso-N-acetylpenicillamine (SNAP).
- Assessment of RNA damage following exposure to these chemicals.
- Evaluation of creatine's protective effects using pre- and co-treatment protocols to understand its mechanism of action.
Main Results:
- Total RNA was found susceptible to chemical attack by doxorubicin, H2O2, spermine, and SNAP.
- Creatine significantly reduced RNA damage induced by H2O2 and doxorubicin.
- Creatine did not protect RNA from damage caused by the nitric oxide donors spermine and SNAP.
Conclusions:
- RNA is vulnerable to damage from certain xenobiotics.
- Creatine exhibits protective effects against specific RNA-damaging agents, notably H2O2 and doxorubicin.
- Creatine's protective mechanism may involve free radical scavenging and energy metabolism support (phosphocreatine/ATP).
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