1.山东中医药大学中医学院 济南 250014
2.山东中医药大学附属医院
3.山东省肿瘤防治研究院
王馨慧,女,在读硕士生
# 姜萍,女,博士,教授,主任医师,主要研究方向:中医药治疗风湿免疫病的理论、临床及实验研究,E-mail:lmdlmd6617@163.com
纸质出版日期:2023-06-30,
网络出版日期:2023-04-26,
收稿日期:2022-12-28,
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王馨慧, 王苏童, 吕穆杰, 等. 黄芪桂枝五物汤调节M1/M2巨噬细胞改善炎症反应的分子机制研究[J]. 北京中医药大学学报, 2023,46(6):801-810.
WANG Xinhui, WANG Sutong, LYU Mujie, et al. Molecular mechanism of
王馨慧, 王苏童, 吕穆杰, 等. 黄芪桂枝五物汤调节M1/M2巨噬细胞改善炎症反应的分子机制研究[J]. 北京中医药大学学报, 2023,46(6):801-810. DOI: 10.3969/j.issn.1006-2157.2023.06.010.
WANG Xinhui, WANG Sutong, LYU Mujie, et al. Molecular mechanism of
目的
2
探讨黄芪桂枝五物汤调节M1/M2巨噬细胞极化的机制。
方法
2
U937细胞经脂多糖诱导为M1巨噬细胞,建立α7烟碱型乙酰胆碱受体(α7nAchR)沉默和激动模型,实验分为对照组、10%含药血清组、siRNA阴性对照(NC)10%含药血清组、siRNA α7nAchR10%含药血清组和α7nAchR激动剂GTS-21组。免疫荧光检测M1、M2型巨噬细胞数量,定量反转录PCR检测M1、M2型巨噬细胞标志基因mRNA表达水平,酶联免疫吸附测定检测M1型巨噬细胞产生的促炎因子和M2型巨噬细胞产生的抗炎因子水平,蛋白质印迹法检测巨噬细胞α7nAchR表达。
结果
2
与对照组相比,10%含药血清组M1型巨噬细胞数量减少(
P
<
0.01),M2型巨噬细胞数量增加(
P
<
0.01);M1型巨噬细胞基因黏附蛋白白细胞整合素(Cd11c)、诱导型一氧化氮合酶(iNOS)表达均降低(
P
<
0.01),M2型巨噬细胞基因精氨酸酶1(Arg1)、甘露糖受体1(CD206)表达均升高(
P
<
0.01);M1型巨噬细胞产生的促炎因子白细胞介素(IL)-1β、IL-6含量减少(
P
<
0.01),M2型巨噬细胞产生的抗炎因子IL-10和转化生长因子-β(TGF-β)含量升高(
P
<
0.01);10%含药血清组、siRNA NC 10%含药血清组、GTS-21组α7nAchR表达均增加(P
<
0.01)。与siRNA α7nAchR 10%含药血清组比较,siRNA NC 10%含药血清组、GTS-21组M1型巨噬细胞数量减少(
P
<
0.01),M2型巨噬细胞数量增加(
P
<
0.01);siRNA NC 10%含药血清组Cd11c、iNOS表达降低(
P
<
0.01),Arg1表达升高(
P
<
0.01);siRNA NC 10%含药血清组IL-1β、IL-6含量减少(
P
<
0.01),IL-10、TGF-β含量升高(
P
<
0.01);siRNA NC 10%含药血清组、GTS-21组α7nAchR表达均增加(
P
<
0.05,
P
<
0.01)。
结论
2
黄芪桂枝五物汤可能通过激动α7nAchR促使M1/M2型巨噬细胞极化,改善炎症反应。
Objective
2
We aimed to investigate the mechanism of
Huangqi Guizhi Wuwu
Decoction in regulating M1/M2 macrophage polarization.
Methods
2
U937 cells induced by lipopolysaccharide into M1 macrophages
established α7 nicotinic acetylcholine receptor (α7nAchR) silencing and agonist model. There were divided into the control group
the 10% medicated serum group
the siRNA NC 10% medicated serum group
the siRNA α7nAchR 10% medicated serum group
and the GTS-21 group acting as an α7nAchR agonist. Immunofluorescence was used to detect the number of M1 and M2 macrophages
quantitative real-time PCR was used to detect the mRNA levels of M1 and M2 macrophage marker genes
pro-inflammatory factors produced by M1 macrophages and anti-inflammatory factors produced by M2 macrophages were measured by ELISA. Western blotting was used to detect the expression levels of α7nAchR in macrophages.
Results
2
Compared with the control group
the number of M1 macrophages decreased (
P
<
0.01) and the number of M2 macrophages increased (
P
<
0.01) in the 10% medicated serum group. The expression of the M1 macrophage genes adhesion protein leukocyte integrin (Cd11c) and inducible nitric oxide synthase (iNOS) was reduced (
P
<
0.01)
while expression of the M2 macrophage genes arginase 1 (Arg1) and mannose receptor 1 (CD206) increased (
P
<
0.01). The levels of the pro-inflammatory factors interleukin-1β (IL-1β) and interleukin-6 (IL-6) produced by M1 macrophages decreased (
P
<
0.01)
and the levels of the anti-inflammatory factors interleukin-10 (IL-10) and transforming growth factor-β (TGF-β) produced by M2 macrophages increased (
P
<
0.01). Furthermore
α7nAchR expression increased in the 10% medicated serum group
the siRNA NC 10% medicated serum group
and the GTS-21 group (
P
<
0.01). Compared with the siRNA α7nAchR 10% medicated serum group
the number of M1 macrophages decreased (
P
<
0.01)
and the number of M2 macrophages increased (
P
<
0.01) in the siRNA NC 10% medicated serum group and GTS-21 group. The expression of Cd11c and iNOS decreased (
P
<
0.01) and the expression of Arg1 increased (
P
<
0.01) in the siRNA NC 10% medicated serum group
and the levels of IL-1β and IL-6 were reduced (
P
<
0.01) in the siRNA NC 10% medicated serum group. The levels of IL-10 and TGF-β increased (
P
<
0.01)
and the expression of α7nAchR increased in the siRNA NC 10% medicated serum group and GTS-21 group (
P
<
0.05
P
<
0.01).
Conclusion
2
Huangqi Guizhi Wuwu
Decoction may improve the inflammatory response by activating α7nAchR to induce M1/M2 macrophage polarization.
α7烟碱型乙酰胆碱受体巨噬细胞极化炎症黄芪桂枝五物汤小鼠
α7nAchRmacrophagespolarizationinflammationHuangqi Guizhi Wuwu Decoctionmice
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