QIAN Kai,ZHENG Xuexia,LI Haihong,et al.Inhibitory Effect of Gancao Fuzitang on Bone Destruction in Collagen-induced Arthritis Mice by Regulating NF-κB Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(23):1-9.
QIAN Kai,ZHENG Xuexia,LI Haihong,et al.Inhibitory Effect of Gancao Fuzitang on Bone Destruction in Collagen-induced Arthritis Mice by Regulating NF-κB Signaling Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(23):1-9. DOI: 10.13422/j.cnki.syfjx.20221605.
Inhibitory Effect of Gancao Fuzitang on Bone Destruction in Collagen-induced Arthritis Mice by Regulating NF-κB Signaling Pathway
To explore the mechanism of Gancao Fuzitang (GCFZ)in inhibiting the bone destruction of collagen-induced arthritis (CIA) model in mice.
Method
2
Thirty male DBa/1J mice were randomly divided into normal group, CIA group, low-dose GCFZ group (GCFZ-L, 2.4 g·kg
-1
), high-dose GCFZ group (GCFZ-H, 4.8 g·kg
-1
), and methotrexate group (MTX, 1 mg·kg
-1
), with six mice in each group. The CIA model was induced by secondary immunization method. The arthritis index of mice in each group was observed and recorded, and the histopathological changes in ankle joint were observed by hematoxylin-eosin (HE) staining. The damage to ankle cartilage was detected by safranin O-fast green staining. Micro-CT scanning was used to detect the bone destruction of ankle joint, and the expression of nuclear factor-
κ
B p65 (NF-
κ
B p65), p-NF-
κ
B p65, inhibitory-
κ
B kinase
α
/
β
(IKK
α
/
β
), and p-IKK
α
/
β
was observed by immunohistochemical staining.
Result
2
Compared with the normal group, the CIA group showed manifest joint swelling and increased arthritis index score (
P
<
0.01). Compared with the CIA group, the groups with drug intervention could inhibit joint swelling and reduce arthritis index score (
P
<
0.05,
P
<
0.01). As revealed by HE staining and safranine O-green staining, compared with the CIA group, the groups with drug intervention could inhibit synovial invasion and reduce the destruction of articular cartilage. Micro-CT scanning analysis showed that compared with the CIA group, the GCFZ-H group and the MTX group showed reduced bone destruction scores (
P
<
0.01). The immunohistochemical results showed that compared with the normal group, the CIA group showed increased optical density values of NF-
κ
B p65, p-NF-
κ
B p65, IKK
α
/
β
, and p-IKK
α
/
β
(
P
<
0.01). Compared with the CIA group, the GCFZ-H group and the MTX group showed reduced optical density values of NF-
κ
B p65, p-NF-
κ
B p65, IKK
α
/
β
, and p-IKK
α
/
β
(
P
<
0.05,
P
<
0.01). In the GCFZ-L group, only the NF-
κ
B p65 optical density value decreased(
P
<
0.01).
Conclusion
2
GCFZ may inhibit bone destruction in CIA mice by regulating the NF-
κ
B signaling pathway.
关键词
Keywords
references
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