Your browser doesn't support javascript.
loading
Methylsulfonylmethane Serves as a Donor of Methyl Groups for Methylation of DNA in Human Liver HepaRG Cells.
Clement, Kirsten; McGill, Mitchell R; Miousse, Isabelle R; Young, Sean G; Melnyk, Stepan; Koturbash, Igor.
Afiliación
  • Clement K; Department of Environmental Health Sciences, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
  • McGill MR; Center for Dietary Supplements Research, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
  • Miousse IR; Department of Environmental Health Sciences, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
  • Young SG; Center for Dietary Supplements Research, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
  • Melnyk S; Department of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
  • Koturbash I; Department of Biochemistry and Molecular Biology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
J Diet Suppl ; 20(6): 950-962, 2023.
Article en En | MEDLINE | ID: mdl-36469606
Methylsulfonylmethane (MSM), a natural organosulfur compound, is a popular dietary supplement sold both as a single product and as a constituent of multi-ingredient products. It has been postulated that MSM may serve as a donor for methyl groups for various cellular processes; however, studies have yet to demonstrate this. Therefore, the goal of this study was to determine whether or not MSM, supplemented to fully differentiated human HepaRG cells at physiologically-relevant concentrations, can serve as a donor for methyl groups for DNA methylation. For this purpose, methyl groups in the MSM molecule were labeled with deuterium (deuterated) and incorporation of the labeled 5-methylcytosine into the HepaRG cell DNA was evaluated using liquid chromatography/mass spectrometry (LC-MS/MS). We report that MSM supplementation resulted in significant incorporation of deuterated product into DNA in a time- and dose-dependent fashion. These changes were not associated with increased 5-methylcytosine content, did not result in changes of DNA methylation or re-distribution of DNA methylation patterns between the retrotransposons LINE-1 and HERV18, and were not associated with cytotoxicity. In conclusion, short-term supplementation with MSM in vitro demonstrates that MSM can serve as a donor of methyl groups for methylation of DNA, but does not affect the levels of DNA methylation globally and does not lead to redistribution of the DNA methylation patterns within the most abundant repetitive elements. Future studies will be needed to validate these findings in vivo and to investigate whether or not MSM can restore normal DNA methylation patterns within the hypomethylated phenotype.
Asunto(s)
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: 5-Metilcitosina / Espectrometría de Masas en Tándem Límite: Humans Idioma: En Revista: J Diet Suppl Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: 5-Metilcitosina / Espectrometría de Masas en Tándem Límite: Humans Idioma: En Revista: J Diet Suppl Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido