2. Academic Validation
  3. The function of Bazhen decoction in rescuing progeroid cell senescence via facilitating G-quadruplex resolving and telomere elongation

The function of Bazhen decoction in rescuing progeroid cell senescence via facilitating G-quadruplex resolving and telomere elongation

  • J Ethnopharmacol. 2023 Dec 30:117694. doi: 10.1016/j.jep.2023.117694.
Chuanbiao Li 1,  Jun Yang 1,  Lili Chu 2,  Jie Tian 1,  Jinchao Xiao 3,  Yong Huang 3,  Qianqian Wang 1,  Bing Guo 1,  Liming Huang 4,  Ying Hu 5,  Ying Luo 6
Affiliations

Affiliations

  • 1 Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guizhou, China.
  • 2 Department of Pharmacology, School of Basic Medicine, Guizhou Medical University, Guizhou, China.
  • 3 State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guizhou, China.
  • 4 The Second Affiliated Hospital, Guizhou University of Traditional Chinese Medicine, Guizhou, China.
  • 5 Department of Pharmacology, School of Basic Medicine, Guizhou Medical University, Guizhou, China. Electronic address: [email protected].
  • 6 Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guizhou, China. Electronic address: [email protected].
PMID: 38163559 DOI: 10.1016/j.jep.2023.117694
Abstract

Ethnopharmacological relevance: The Bazhen decoction is one of the most extensively used Traditional Chinese medicine (TCM) prescriptions for treatment of aging related diseases. However, due to the complexity of the components, the pharmacological mechanism of Bazhen decoction is still limited.

Aim of the study: In this study, with the aim of helping the clinical precision medicine of TCM, we try out a systematic analysis for dissecting the molecular mechanism of complicated TCM prescription: Bazhen decoction. We identify the pharmacological mechanism of Bazhen decoction in telomere elongation as revealed by systematic analysis.

Materials and methods: By RNA sequencing and transcriptome analysis of Bazhen decoction treated wild type cells, we reveal the transcriptome profile induced by Bazhen decoction. We utilized the cells derived from Werner syndrome (WS) mice, which is known to be dysfunctional in telomere elongation due to the deficiency of DNA helicase Wrn. By Western blot, qPCR, Immunofluorescence, flow cytometry, telomere FISH, and SA-β-Gal staining, we verify the transcriptome data and confirm the pharmacological function of Bazhen decoction and its drug containing serum in telomere elongation and reversing progeroid cell senescence.

Results: We reveal that Bazhen decoction may systematically regulate multiple Anti-aging pathways, including stem cell regulation, protein homeostasis, cardiovascular function, neuronal function, anti-inflammation, anti-DNA damage induced stress, DNA helicase activity and telomere lengthening. We find that Bazhen decoction and its drug containing serum could up-regulate multiple DNA helicases and telomere regulating proteins. The increased DNA helicases promote the resolving of G-quadruplex (G4) structures, and facilitate DNA replication and telomere elongation. These improvements also endow the cellular resistance to DNA damages induced by replication stress, and rescue the WS caused cellular senescence.

Conclusions: Together these data suggest that Bazhen decoction up-regulate the expression of DNA helicases, thus facilitate G4 resolving and telomere maintenance, which rescue the progeroid cellular senescence and contribute to its Anti-aging properties. Our data reveal a new molecular mechanism of Bazhen decoction in Anti-aging related diseases via elongating telomere, this may shed LIGHT in the application of Bazhen decoction in multiple degenerative diseases caused by telomere erosion.

Keywords

Bazhen decoction; DNA helicase; G-quadruplex; Telomere; Transcriptome.

Figures
Products