» Articles » PMID: 36902068

Phloroglucinol Inhibits Oxidative-Stress-Induced Cytotoxicity in C2C12 Murine Myoblasts Through Nrf-2-Mediated Activation of HO-1

Abstract

Phloroglucinol is a class of polyphenolic compounds containing aromatic phenyl rings and is known to have various pharmacological activities. Recently, we reported that this compound isolated from , a brown alga belonging to the family , has potent antioxidant activity in human dermal keratinocytes. In this study, we evaluated whether phloroglucinol could protect against hydrogen peroxide (HO)-induced oxidative damage in murine-derived C2C12 myoblasts. Our results revealed that phloroglucinol suppressed HO-induced cytotoxicity and DNA damage while blocking the production of reactive oxygen species. We also found that phloroglucinol protected cells from the induction of apoptosis associated with mitochondrial impairment caused by HO treatment. Furthermore, phloroglucinol enhanced the phosphorylation of nuclear factor-erythroid-2 related factor 2 (Nrf2) as well as the expression and activity of heme oxygenase-1 (HO-1). However, such anti-apoptotic and cytoprotective effects of phloroglucinol were greatly abolished by the HO-1 inhibitor, suggesting that phloroglucinol could increase the Nrf2-mediated activity of HO-1 to protect C2C12 myoblasts from oxidative stress. Taken together, our results indicate that phloroglucinol has a strong antioxidant activity as an Nrf2 activator and may have therapeutic benefits for oxidative-stress-mediated muscle disease.

Citing Articles

The Ocean's Pharmacy: Health Discoveries in Marine Algae.

Silva M, Avni D, Varela J, Barreira L Molecules. 2024; 29(8).

PMID: 38675719 PMC: 11055030. DOI: 10.3390/molecules29081900.


Bilirubin Concentration in Follicular Fluid Is Increased in Infertile Females, Correlates with Decreased Antioxidant Levels and Increased Nitric Oxide Metabolites, and Negatively Affects Outcome Measures of In Vitro Fertilization.

Mangione R, Pallisco R, Bilotta G, Marroni F, Di Pietro V, Capoccia E Int J Mol Sci. 2023; 24(13).

PMID: 37445884 PMC: 10342083. DOI: 10.3390/ijms241310707.


Oxidative Stress and Skeletal Muscle Function.

Duranti G Int J Mol Sci. 2023; 24(12).

PMID: 37373372 PMC: 10299531. DOI: 10.3390/ijms241210227.

References
1.
Choi Y . Activation of the Nrf2/HO-1 signaling pathway contributes to the protective effects of platycodin D against oxidative stress-induced DNA damage and apoptosis in C2C12 myoblasts. Gen Physiol Biophys. 2020; 39(6):519-530. DOI: 10.4149/gpb_2020030. View

2.
Taghizadeh S, Panahi A, Esmaeilzadeh Kashi M, Kretschmer N, Asili J, Emami S . Structural Diversity of Complex Phloroglucinol Derivatives from Eucalyptus Species. Chem Biodivers. 2022; 19(6):e202200025. DOI: 10.1002/cbdv.202200025. View

3.
Tiwari S, Dewry R, Srivastava R, Nath S, Mohanty T . Targeted antioxidant delivery modulates mitochondrial functions, ameliorates oxidative stress and preserve sperm quality during cryopreservation. Theriogenology. 2021; 179:22-31. DOI: 10.1016/j.theriogenology.2021.11.013. View

4.
Shaw P, Chattopadhyay A . Nrf2-ARE signaling in cellular protection: Mechanism of action and the regulatory mechanisms. J Cell Physiol. 2019; 235(4):3119-3130. DOI: 10.1002/jcp.29219. View

5.
Jackson M, McArdle A . Age-related changes in skeletal muscle reactive oxygen species generation and adaptive responses to reactive oxygen species. J Physiol. 2011; 589(Pt 9):2139-45. PMC: 3098693. DOI: 10.1113/jphysiol.2011.206623. View