LUAN Hui-jie,HE Lian-hua,HE Juan,et al.Effect of Asiaticoside on Expression of Th17/Treg Cells in DBA/1 Mice with Collagen-Induced Arthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(04):76-83.
LUAN Hui-jie,HE Lian-hua,HE Juan,et al.Effect of Asiaticoside on Expression of Th17/Treg Cells in DBA/1 Mice with Collagen-Induced Arthritis[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(04):76-83. DOI: 10.13422/j.cnki.syfjx.20220437.
Effect of Asiaticoside on Expression of Th17/Treg Cells in DBA/1 Mice with Collagen-Induced Arthritis
To observe the effect of asiaticoside (AC) on the expression of T helper 17 (Th17) cells and regulatory T (Treg) cells in DBA/1 mice with collagen-induced arthritis (CIA).
Method
2
Male SPF DBA/1 mice were randomized into six groups according to body weight: control group, CIA group, methotrexate group (MTX group,
ip
, 0.5 mg·kg
-1
), and AC low-, medium-, and high-dose groups (
ig
, 5, 15, 45 mg·kg
-1
, respectively). Modeling was performed in rats other than the control group. To be specific, they were immunized with bovine type Ⅱ collagen and complete Freund's adjuvant on the first day and with bovine type Ⅱ collagen and incomplete Freund's adjuvant on the 21
st
day. Administration began on the day of the second immunization, once a day for 28 days. On the 49
th
day, related tissues were collected. Then, hematoxylin-eosin (HE) staining was performed to observe the pathological changes of the joints. Immunohistochemical method was used to detect the expression of interleukin-17 (IL-17) and forkhead box protein-3 (FoxP3), the markers of Th17 and Treg cells, respectively, immunofluorescence double staining the expression of IL-17 and FoxP3 in CD4
+
T cells of mouse joint tissue, and flow cytometry the proportions of Th17 and Treg cells in mouse lymph nodes.
Result
2
Compared with the control group, CIA group demonstrated joint disorder, damage of articular cartilage and bone, severe bone erosion (
P
<
0.01), increase in stained CD4 and IL-17 and the integral absorbance (
IA
) (
P
<
0.01), decrease in stained FoxP3 and the
IA
(
P
<
0.01), rise of Th17/Treg ratio (
P
<
0.01), elevation of Th17 expression in mouse lymph nodes (
P
<
0.01), and reduction in Treg expression (
P
<
0.01). Compared with CIA group, MTX group and three AC groups showed normal joints, alleviated bone erosion and damage, intact and smooth joint surface, and decrease in stained IL-17 and
IA
(
P
<
0.05,
P
<
0.01), and MTX group and AC medium-dose and high-dose groups registered decrease in stained CD4 and
IA
(
P
<
0.01) and reduction in Th17/Treg ratio (
P
<
0.05,
P
<
0.01). Moreover, AC medium-dose and high-dose groups showed rise in stained FoxP3 and
IA
(
P
<
0.05,
P
<
0.01). In the lymph nodes of mice, decrease in expression of Th17 cells (
P
<
0.05,
P
<
0.01) and the increase in expression of Treg cells (
P
<
0.05,
P
<
0.01) were observed in all the three AC group.
Conclusion
2
AC can regulate Th17/Treg balance by inhibiting the expression of Th17 cells and promoting the expression of Treg cells in CIA mice.
关键词
Keywords
references
SMOLEN J S , ALETAHA D , BARTON A , et al . Rheumatoid arthritis [J]. Nat Rev Dis Primers , 2018 , 4 : 18001 .
VAN DER WOUDE D , VAN DER HELM-VAN MIL A . Update on the epidemiology,risk factors,and disease outcomes of rheumatoid arthritis [J]. Best Pract Res Clin Rheumatol , 2018 , 32 ( 2 ): 174 - 187 .
LI Z G . A new look at rheumatology in China-opportunities and challenges [J]. Nat Rev Rheumatol , 2015 , 11 ( 5 ): 313 - 317 .
GIZINSKI A M , FOX D A . T cell subsets and their role in the pathogenesis of rheumatic disease [J]. Curr Opin Rheumatol , 2014 , 26 ( 2 ): 204 - 210 .
TESMER L A , LUNDY S K , SARKAR S , et al . Th17 cells in human disease [J]. Immunol Rev , 2008 , 223 : 87 - 113 .
WU S , ZHOU Y , LIU S , et al . Regulatory effect of nicotine on the differentiation of Th1,Th2 and Th17 lymphocyte subsets in patients with rheumatoid arthritis [J]. Eur J Pharmacol , 2018 , 831 : 38 - 45 .
BOISSIER M C , ASSIER E , FALGARONE G , et al . Shifting the imbalance from Th1/Th2 to Th17/Treg:the changing rheumatoid arthritis paradigm [J]. Joint Bone Spine , 2008 , 75 ( 4 ): 373 - 375 .
LINA C , CONGHUA W , NAN L , et al . Combined treatment of etanercept and MTX reverses Th1/Th2,Th17/Treg imbalance in patients with rheumatoid arthritis [J]. J Clin Immunol , 2011 , 31 ( 4 ): 596 - 605 .
LI N , WANG J C , LIANG T H , et al . Pathologic finding of increased expression of interleukin-17 in the synovial tissue of rheumatoid arthritis patients [J]. Int J Clin Exp Pathol , 2013 , 6 ( 7 ): 1375 - 1379 .
LAVOCAT F , OSTA B , MIOSSEC P . Increased sensitivity of rheumatoid synoviocytes to Schnurri-3 expression in TNF- α and IL-17A induced osteoblastic differentiation [J]. Bone , 2016 , 87 : 89 - 96 .
YANG C L , OR T C , HO M H , et al . Scientific basis of botanical medicine as alternative remedies for rheumatoid arthritis [J]. Clin Rev Allergy Immunol , 2013 , 44 ( 3 ): 284 - 300 .
SHARMA S , GUPTA R , THAKUR S C . Attenuation of collagen induced arthritis by Centella asiatica methanol fraction via modulation of cytokines and oxidative stress [J]. Biomed Environ Sci , 2014 , 27 ( 12 ): 926 - 938 .
WANG X , CAI X , WANG W , et al . Effect of asiaticoside on endothelial cells in hypoxia‑induced pulmonary hypertension [J]. Mol Med Rep , 2018 , 17 ( 2 ): 2893 - 2900 .
ZHANG Z , LI X , LI D , et al . Asiaticoside ameliorates β -amyloid-induced learning and memory deficits in rats by inhibiting mitochondrial apoptosis and reducing inflammatory factors [J]. Exp Ther Med , 2017 , 13 ( 2 ): 413 - 420 .
ZAISS M M , AXMANN R , ZWERINA J , et al . Treg cells suppress osteoclast formation:a new link between the immune system and bone [J]. Arthritis Rheum , 2007 , 56 ( 12 ): 4104 - 4112 .
SCHINNERLING K , AGUILLÓN J C , CATALÁN D , et al . The role of interleukin-6 signalling and its therapeutic blockage in skewing the T cell balance in rheumatoid arthritis [J]. Clin Exp Immunol , 2017 , 189 ( 1 ): 12 - 20 .
BETTELLI E , CARRIER Y , GAO W , et al . Reciprocal developmental pathways for the generation of pathogenic effector TH17 and regulatory T cells [J]. Nature , 2006 , 441 ( 7090 ): 235 - 238 .
ZHOU G , SUN X , QIN Q , et al . Loss of Smad7 promotes inflammation in rheumatoid arthritis [J]. Front Immunol , 2018 , 9 : 2537 .