Transformed Root Extract of Leonurus sibiricus Induces Apoptosis through Intrinsic and Extrinsic Pathways in Various Grades of Human Glioma Cells

Przemysław Sitarek, Ewa Skała, Monika Toma, Marzena Wielanek, Janusz Szemraj, Tomasz Skorski, Adam J. Białas, Tomasz Sakowicz, Tomasz Kowalczyk, Maciej Radek, Halina Wysokińska, Tomasz Śliwiński

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

This study determines the influence of transformed root (TR) extract of Leonurus sibiricus L. on various grades (I-III) of human glioma cells derived from patients. This plant occurs in southern Asia and Siberia and is widely used as a medicinal plant with various biological activities. Chromatographic profile of TR extract have revealed the presence of various polyphenolic compounds (4-hydroxybenzoic acid, gentisic acid, vanilic acid, 1,3-dicaffeoylquinic acid, α-resorcylic acid). We found TR root extract to have antiproliferative activity on glioma cells after 24 h of treatment. TR root extract induces apoptosis on various grades (I-III) of human glioma cells by the generation of reactive oxygen species (ROS) along with concurrent loss of mitochondrial membrane potential, enhanced S and G2/M phases of the cell cycle, and altered mRNA levels of Bax, Bcl-2, p53, Cas-3, Cas-8 and Cas-9 factors involved in apoptosis. This work for the first time demonstrate that TR extract from L. sibiricus root has the potential to activate apoptosis in grade I-III human glioma cells through the intrinsic and extrinsic pathways.

Original languageEnglish
Pages (from-to)679-687
Number of pages9
JournalPathology and Oncology Research
Volume23
Issue number3
DOIs
StatePublished - Jul 1 2017
Externally publishedYes

Keywords

  • Apoptosis
  • Cell cycle
  • Gene expression
  • Mitochondrial membrane potential
  • Reactive oxygen species
  • Transformed roots of Leonurus sibiricus

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