Bergenin protects against osteoarthritis by inhibiting STAT3, NF-κB and Jun pathways and suppressing

Zhiwei Zhang1,2,3, Bo Li1,2,3, Shuqin Wu4

  • 1Department of Orthopedic Hospital, The 1st Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 17, Yongwaizheng Street, Nanchang, 330006, Jiangxi, China.

Scientific Reports
|August 31, 2024
PubMed

Insights

Bergenin (Ber) effectively treats osteoarthritis (OA) by reducing cartilage damage and inflammation. This study validates Ber

Area of Science:

  • Pharmacology
  • Biochemistry
  • Immunology

Background:

  • Osteoarthritis (OA) is a degenerative joint disease marked by cartilage breakdown.
  • Bergenin (Ber), a polyphenol, exhibits anti-inflammatory and antioxidant properties.
  • Ber's therapeutic potential for OA warrants investigation.

Purpose of the Study:

  • To evaluate Bergenin's efficacy in treating osteoarthritis.
  • To elucidate the underlying molecular mechanisms of Bergenin's action on OA through network pharmacology and experimental validation.

Main Methods:

  • Network pharmacology was employed to predict potential targets and pathways.
  • In vitro experiments assessed Bergenin's effects on chondrocytes and osteoclastogenesis.
  • In vivo studies utilized a DMM-induced mouse model of osteoarthritis.

Main Results:

  • Bergenin inhibited IL-1β-induced chondrocyte apoptosis and extracellular matrix degradation via STAT3, NF-κB, and Jun signaling pathways.
  • Bergenin suppressed osteoclast differentiation and osteoclast marker gene expression.
  • Bergenin treatment alleviated OA progression in a mouse model.

Conclusions:

  • Bergenin demonstrates significant protective effects against osteoarthritis progression.
  • Bergenin acts by modulating key inflammatory and signaling pathways involved in OA pathogenesis.
  • Bergenin shows promise as a potential therapeutic agent for osteoarthritis treatment.

Related Concept Videos

The JAK-STAT Signaling Pathway01:20

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as  SH2...
8.7K
NF-κB-dependent Signaling Pathway02:26

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
7.4K
TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.3K
T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
963
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
2.8K
Inflammatory Response01:28

Inflammatory Response

An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
1.9K