betway必威登陆网址 (betway.com )学报››2022,Vol. 43››Issue (10): 721-727.DOI:10.3969/j.issn.2097-0005.2022.10.001
• 基础研究 •下一篇
刘国强1(), 王丽梅2, 马贵英1, 刘霞2, 丁冬3(
), 丁一1
收稿日期:
2022-04-24出版日期:
2022-10-25发布日期:
2022-11-19通讯作者:
丁冬作者简介:
刘国强,硕士,主治医师,研究方向:骨关节病的基础和临床,E-mail:616359898@qq.com。基金资助:
Guoqiang LIU1(), Limei WANG2, Guiying MA1, Xia LIU2, Dong DING3(
), Yi DING1
Received:
2022-04-24Online:
2022-10-25Published:
2022-11-19Contact:
Dong DING摘要:
目的观察唑来膦酸(zoledronic acid, ZOL)对小鼠膝骨关节炎(osteoarthritis, OA)的影响并探讨其可能的作用机制。方法将45只雄性C57BL/6J小鼠随机分为sham + 生理盐水(normal saline, NS)组、OA + NS组和OA + ZOL组,每组15只。采用内侧半月板失稳术建立小鼠膝OA模型。术后各组小鼠腹腔注射100 μg/kg的ZOL或等量的NS,每周2次,连续4周。术后4、8周,micro-CT检测软骨下骨结构,甲苯胺蓝和HE染色评估软骨退变程度。术后第2,4,6,8周,Elisa检测血清骨转换标志物。术后第4周,TRAP染色计数软骨下骨中的破骨细胞,免疫组化和Western blot检测Wnt5a、RANKL、IκBα、NF-κB的蛋白表达水平。结果OA + NS组在术后4周的骨体积分数(bone volume fraction, BV/TV)低于sham + NS组和OA + ZOL组,术后第8周, BV/TV高于sham + NS组和OA + ZOL组,差异均具有统计学意义(P< 0.001);术后第4周和第8周的改良Mankin评分均高于sham + NS组和OA + ZOL组,差异均具有统计学意义(P< 0.001);术后4周Oc.S/BS高于sham + NS组和OA + ZOL组,差异具有统计学意义(P< 0.001),Wnt5a通路相关的蛋白水平高于sham + NS组和OA + ZOL组,差异具有统计学意义(P< 0.001)。结论ZOL可抑制Wnt5a/NF-κB介导的软骨下异常骨吸收,减轻小鼠膝OA的退变程度,延缓OA进展。
刘国强, 王丽梅, 马贵英, 刘霞, 丁冬, 丁一. 唑来膦酸对小鼠膝骨关节炎的影响及机制[J]. betway必威登陆网址 (betway.com )学报, 2022, 43(10): 721-727.
Guoqiang LIU, Limei WANG, Guiying MA, Xia LIU, Dong DING, Yi DING. Zoledronic acid in the alleviation of osteoarthritis in mice by inhibiting Wnt5a/NF-κB mediated abnormal bone resorption in Subchondral bone[J]. Journal of Shandong First Medical Unversity & Shandong Academy of Medical Sciences, 2022, 43(10): 721-727.
评分指标 | 分值 |
---|---|
软骨结构 | |
正常 | 0 |
表面不规则 | 1 |
血管翳的形成和表面不规整 | 2 |
裂隙进入过渡层 | 3 |
裂隙进入辐射层 | 4 |
裂隙进入钙化层 | 5 |
结构完全破坏 | 6 |
软骨细胞 | |
正常 | 0 |
弥漫性细胞增加 | 1 |
局部细胞增加 | 2 |
细胞数目明显减少 | 3 |
软骨基质 | |
正常 | 0 |
轻微减少 | 1 |
中毒减少 | 2 |
重度减少 | 3 |
未着色 | 4 |
潮线完整性 | |
完整 | 0 |
被破坏 | 1 |
表1改良Mankin评分
评分指标 | 分值 |
---|---|
软骨结构 | |
正常 | 0 |
表面不规则 | 1 |
血管翳的形成和表面不规整 | 2 |
裂隙进入过渡层 | 3 |
裂隙进入辐射层 | 4 |
裂隙进入钙化层 | 5 |
结构完全破坏 | 6 |
软骨细胞 | |
正常 | 0 |
弥漫性细胞增加 | 1 |
局部细胞增加 | 2 |
细胞数目明显减少 | 3 |
软骨基质 | |
正常 | 0 |
轻微减少 | 1 |
中毒减少 | 2 |
重度减少 | 3 |
未着色 | 4 |
潮线完整性 | |
完整 | 0 |
被破坏 | 1 |
组别 | BV/TV (%) | Tb.Th (μm) | Tb.N (1/mm) | Tb.Sp (μm) | CD (1/mm3) |
---|---|---|---|---|---|
sham + NS | 54.49 ± 2.63 | 103.60 ± 4.57 | 5.54 ± 0.28 | 172.30 ± 5.69 | 177.60 ± 7.60 |
OA + NS | 44.28 ± 2.81a | 79.41 ± 5.48a | 4.17 ± 0.39a | 227.60 ± 8.82a | 119.70 ± 5.98a |
OA + ZOL | 54.95 ± 2.94b | 102.20 ± 4.35b | 5.35 ± 0.26b | 179.80 ± 6.84b | 174.60 ± 6.26b |
F | 23.24 | 39.69 | 28.25 | 86.07 | 120.1 |
P | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
表2术后4周时软骨下骨micro-CT检测结果
组别 | BV/TV (%) | Tb.Th (μm) | Tb.N (1/mm) | Tb.Sp (μm) | CD (1/mm3) |
---|---|---|---|---|---|
sham + NS | 54.49 ± 2.63 | 103.60 ± 4.57 | 5.54 ± 0.28 | 172.30 ± 5.69 | 177.60 ± 7.60 |
OA + NS | 44.28 ± 2.81a | 79.41 ± 5.48a | 4.17 ± 0.39a | 227.60 ± 8.82a | 119.70 ± 5.98a |
OA + ZOL | 54.95 ± 2.94b | 102.20 ± 4.35b | 5.35 ± 0.26b | 179.80 ± 6.84b | 174.60 ± 6.26b |
F | 23.24 | 39.69 | 28.25 | 86.07 | 120.1 |
P | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
组别 | BV/TV (%) | Tb.Th (μm) | Tb.N (1/mm) | Tb.Sp (μm) | CD (1/mm3) |
---|---|---|---|---|---|
sham + NS | 53.60 ± 2.34 | 104.70 ± 5.12 | 5.48 ± 0.16 | 177.50 ± 6.30 | 179.60 ± 6.26 |
OA + NS | 67.83 ± 2.76a | 142.70 ± 7.53a | 3.10 ± 0.32a | 160.40 ± 7.42a | 93.54 ± 5.04a |
OA + ZOL | 56.52 ± 2.7b | 117.50 ± 5.50ab | 4.34 ± 0.23ab | 209.30 ± 6.75ab | 135.40 ± 4.28ab |
F | 41.46 | 49.66 | 116.1 | 65.76 | 335.2 |
P | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
表3术后8周时软骨下骨micro-CT检测结果
组别 | BV/TV (%) | Tb.Th (μm) | Tb.N (1/mm) | Tb.Sp (μm) | CD (1/mm3) |
---|---|---|---|---|---|
sham + NS | 53.60 ± 2.34 | 104.70 ± 5.12 | 5.48 ± 0.16 | 177.50 ± 6.30 | 179.60 ± 6.26 |
OA + NS | 67.83 ± 2.76a | 142.70 ± 7.53a | 3.10 ± 0.32a | 160.40 ± 7.42a | 93.54 ± 5.04a |
OA + ZOL | 56.52 ± 2.7b | 117.50 ± 5.50ab | 4.34 ± 0.23ab | 209.30 ± 6.75ab | 135.40 ± 4.28ab |
F | 41.46 | 49.66 | 116.1 | 65.76 | 335.2 |
P | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 |
组别 | 第4周 | 第8周 |
---|---|---|
sham + NS | 0.55 ± 0.06 | 0.56 ± 0.11 |
OA + NS | 3.37 ± 0.24a | 7.71 ± 0.76a |
OA + ZOL | 1.25 ± 0.16ab | 3.12 ± 0.57ab |
F | 378.8 | 212.6 |
P | < 0.001 | < 0.001 |
表4膝关节的改良Mankin评分检测结果
组别 | 第4周 | 第8周 |
---|---|---|
sham + NS | 0.55 ± 0.06 | 0.56 ± 0.11 |
OA + NS | 3.37 ± 0.24a | 7.71 ± 0.76a |
OA + ZOL | 1.25 ± 0.16ab | 3.12 ± 0.57ab |
F | 378.8 | 212.6 |
P | < 0.001 | < 0.001 |
组别 | 第4周 | 第8周 |
---|---|---|
sham + NS | 40.64 ± 2.36 | 42.87 ± 2.15 |
OA + NS | 50.22 ± 2.39a | 92.79 ± 5.05a |
OA + ZOL | 42.66 ± 2.58b | 70.39 ± 4.63ab |
F | 21.33 | 182.2 |
P | < 0.001 | < 0.001 |
表5膝关节的CC/TAC检测结果
组别 | 第4周 | 第8周 |
---|---|---|
sham + NS | 40.64 ± 2.36 | 42.87 ± 2.15 |
OA + NS | 50.22 ± 2.39a | 92.79 ± 5.05a |
OA + ZOL | 42.66 ± 2.58b | 70.39 ± 4.63ab |
F | 21.33 | 182.2 |
P | < 0.001 | < 0.001 |
组别 | Oc.S/BS |
---|---|
sham + NS | 3.25 ± 0.37 |
OA + NS | 33.43 ± 2.40a |
OA + ZOL | 10.16 ± 2.02ab |
F | 375.9 |
P | < 0.001 |
表6破骨细胞的TRAP染色结果(%)
组别 | Oc.S/BS |
---|---|
sham + NS | 3.25 ± 0.37 |
OA + NS | 33.43 ± 2.40a |
OA + ZOL | 10.16 ± 2.02ab |
F | 375.9 |
P | < 0.001 |
组别 | Wnt5a | NF-κB |
---|---|---|
sham + NS | 17.21 ± 1.68 | 11.49 ± 1.45 |
OA + NS | 62.28 ± 3.16a | 77.37 ± 3.90a |
OA + ZOL | 26.27 ± 1.75ab | 30.39 ± 3.39ab |
F | 537.9 | 598.4 |
P | < 0.001 | < 0.001 |
表7Wnt5a、NF-κB的免疫组化染色结果(%)
组别 | Wnt5a | NF-κB |
---|---|---|
sham + NS | 17.21 ± 1.68 | 11.49 ± 1.45 |
OA + NS | 62.28 ± 3.16a | 77.37 ± 3.90a |
OA + ZOL | 26.27 ± 1.75ab | 30.39 ± 3.39ab |
F | 537.9 | 598.4 |
P | < 0.001 | < 0.001 |
组别 | RANKL |
---|---|
sham + NS | 7.27 ± 0.98 |
OA + NS | 80.29 ± 4.14a |
OA + ZOL | 25.25 ± 3.00ab |
F | 801 |
P | ≤ 0.001 |
表8RANKL的免疫荧光染色结果(%)
组别 | RANKL |
---|---|
sham + NS | 7.27 ± 0.98 |
OA + NS | 80.29 ± 4.14a |
OA + ZOL | 25.25 ± 3.00ab |
F | 801 |
P | ≤ 0.001 |
图6Western blot检测ZOL对破骨细胞形成相关蛋白表达的影响DMM术后4周软骨下骨中Wnt5a、RANKL、NF-κB、IκBα(A)的Western blot检测及其定量分析(B)。与sham + NS组比较,*P ≤ 0.05,**P ≤ 0.01,***P ≤ 0.001,与OA + NS组比较,#P ≤ 0.05,##P ≤ 0.01,###P ≤ 0.001
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