目的:建立Pristane诱导的BALB/c小鼠系统性红斑狼疮(SLE)模型。方法:雌性BALB/c小鼠随机分成2组,模型组单次腹腔注射0.5 ml Pristane,对照组注射等量的0.9%氯化钠注射液,注射前及注射后每月ELISA法检测血清抗dsDNA抗体和抗Sm/RNP抗体含...目的:建立Pristane诱导的BALB/c小鼠系统性红斑狼疮(SLE)模型。方法:雌性BALB/c小鼠随机分成2组,模型组单次腹腔注射0.5 ml Pristane,对照组注射等量的0.9%氯化钠注射液,注射前及注射后每月ELISA法检测血清抗dsDNA抗体和抗Sm/RNP抗体含量,Albustix试纸法检测尿蛋白含量,每月定期观察小鼠症状和体征。6个月后处死全部小鼠后解剖,肉眼观察腹腔脏器组织病变,并取病变组织及肾脏做病理学检查,观察其组织病理变化(HE染色法)及肾脏免疫复合物(IC)沉积情况(直接荧光染色法)。结果:模型组小鼠造模2个月后,血清抗Sm/RNP抗体和抗dsDNA抗体开始出现,并逐月增高,与同期对照组小鼠比较,3～6个月时血清抗Sm/RNP抗体和4～6个月时血清抗dsDNA抗体均明显增高(P<0.01),且血清抗Sm/RNP抗体的增高较抗dsDNA抗体更为显著;尿蛋白(≥+)于造模后3个月时开始出现,6个月时显著高于对照组小鼠(P<0.01);3个月时模型组小鼠开始出现关节病变,6个月时其阳性率达55%,明显高于对照组小鼠(P=0.004)。6个月后处死动物,解剖发现模型组大多数小鼠腹腔可见多少不等的脂肪肉芽肿结节;肾脏病理检查>50%的模型组小鼠出现不同程度肾小球肾炎病变伴毛细血管壁大量IC沉积。对照组除1只小鼠在造模6个月时出现轻度蛋白尿(+)外,未见其他病变。结论:Pristane能成功诱发BALB/c小鼠SLE,且建立的SLE模型稳定可靠。展开更多
OBJECTIVE To investigate the effects of salvianolic acid A(SAA)in systemic lupus erythematosus(SLE)induced by pristane in BALB/c mice,this study was performed.METHODS Lupus mice were established by confirming elevated...OBJECTIVE To investigate the effects of salvianolic acid A(SAA)in systemic lupus erythematosus(SLE)induced by pristane in BALB/c mice,this study was performed.METHODS Lupus mice were established by confirming elevated levels of autoantibodies and IL-6 after intraperitoneal injection of pristane.Micewere then treated with daily oral doses of SAA for 5months in parallel with mice treated with prednisone and aspirin as positive controls.The levels of autoantibodies were monitored at monthly intervals and nephritic symptoms observed by hematoxylin and eosin(H&E)and periodic acid-Schiff(PAS)staining.Western blot analysis of renal tissue was also employed.RESULTS SAA treatment caused a significant reduction in the levels of anti-Sm autoantibodies and reduced renal histopathological changes and pathological effects.SAA treatment also significantly inhibited the phosphorylation of IKK,IκB and NFκB in renal tissues of lupus mice.CONCLUSION The results suggest that SAA alleviates renal injury in pristane-induced SLE in BALB/c mice through inhibition of phosphorylation of IKK,IκB and NFκB.展开更多
Background:Systemic lupus erythematosus(SLE)is an autoimmune disease characterized by immune-mediated inflammation affecting multiple organs and systems.The aim of this study was to establish and validate a pristanein...Background:Systemic lupus erythematosus(SLE)is an autoimmune disease characterized by immune-mediated inflammation affecting multiple organs and systems.The aim of this study was to establish and validate a pristaneinduced SLE model in C57BL/6J mice and analyze immune cell alterations.Methods:Six-week-old female C57BL/6J mice were randomly assigned to two groups(n=6 per group).The pristane group received a single 0.5 mL intraperitoneal injection of pristane,whereas the control group received a single intraperitoneal injection of 0.5 mL saline.Urine samples were collected before injection and at 2,4,and 6 months after injection to monitor urinary protein levels.Six months postinjection,the mice were euthanized,and serum,kidney,and spleen tissues were collected.Serum antinuclear antibody(ANA),double-stranded DNA(dsDNA),and inflammatory cytokine levels(interleukin[IL]-1β,IL-6,tumor necrosis factor-α)were quantified by enzyme-linked immunosorbent assay.Histological alterations in kidney tissues were assessed using hematoxylin and eosin,periodic acid-Schiff,Masson,and silver staining,in addition to direct immunofluorescence for immunoglobulin G and complement component 3.Flow cytometry was used to assess immune cell alterations in the spleen.Results:Following the intraperitoneal injection of pristane,the mice exhibited a gradual increase in spleen size,body weight,and urinary protein levels.Serum levels of ANA,dsDNA,and inflammatory cytokines were elevated to varying degrees(p<0.05).Histological analysis of the kidney sections revealed characteristic nephritic alterations,including glomerular swelling and lymphocyte infiltration.In the spleen,T cell numbers decreased,whereas the proportion of myeloid cells significantly increased,particularly monocytes,neutrophils,and macrophages(p<0.05).Conclusion:Pristane successfully induced a SLE model in C57BL/6J mice,characterized by nephritic injury and significant alterations in immune cell populations.展开更多
The purpose of this study was to investigate the effects of salvianolic acid A (SAA) in systemic lupus erythematosus (SLE) induced by pristane in BALB/c mice. Lupus mice were established by confirming elevated levels ...The purpose of this study was to investigate the effects of salvianolic acid A (SAA) in systemic lupus erythematosus (SLE) induced by pristane in BALB/c mice. Lupus mice were established by confirming elevated levels of autoantibodies and IL-6 after intraperitoneal injection of pristane. Mice were then treated with daily oral doses of SAA for 5 months in parallel with mice treated with prednisone and aspirin as positive controls. The levels of autoantibodies were monitored at monthly intervals and nephritic symptoms observed by hematoxylin and eosin(H&E) and periodic acid-Schiff (PAS) staining. Western blot analysis of renal tissue was also employed. SAA treatment caused a significant reduction in the levels of anti-Sm autoantibodies and reduced renal histopathological changes and pathological effects. SAA treatment also significantly inhibited the phosphorylation of IKK, I kappa B and NF kappa B in renal tissues of lupus mice. In conclusion, the results suggest that SAA alleviates renal injury in pristane-induced SLE in BALB/c mice through inhibition of phosphorylation of IKK, I kappa B and NF kappa B. (C) 2017 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V.展开更多
文摘目的:建立Pristane诱导的BALB/c小鼠系统性红斑狼疮(SLE)模型。方法:雌性BALB/c小鼠随机分成2组,模型组单次腹腔注射0.5 ml Pristane,对照组注射等量的0.9%氯化钠注射液,注射前及注射后每月ELISA法检测血清抗dsDNA抗体和抗Sm/RNP抗体含量,Albustix试纸法检测尿蛋白含量,每月定期观察小鼠症状和体征。6个月后处死全部小鼠后解剖,肉眼观察腹腔脏器组织病变,并取病变组织及肾脏做病理学检查,观察其组织病理变化(HE染色法)及肾脏免疫复合物(IC)沉积情况(直接荧光染色法)。结果:模型组小鼠造模2个月后,血清抗Sm/RNP抗体和抗dsDNA抗体开始出现,并逐月增高,与同期对照组小鼠比较,3～6个月时血清抗Sm/RNP抗体和4～6个月时血清抗dsDNA抗体均明显增高(P<0.01),且血清抗Sm/RNP抗体的增高较抗dsDNA抗体更为显著;尿蛋白(≥+)于造模后3个月时开始出现,6个月时显著高于对照组小鼠(P<0.01);3个月时模型组小鼠开始出现关节病变,6个月时其阳性率达55%,明显高于对照组小鼠(P=0.004)。6个月后处死动物,解剖发现模型组大多数小鼠腹腔可见多少不等的脂肪肉芽肿结节;肾脏病理检查>50%的模型组小鼠出现不同程度肾小球肾炎病变伴毛细血管壁大量IC沉积。对照组除1只小鼠在造模6个月时出现轻度蛋白尿(+)外,未见其他病变。结论:Pristane能成功诱发BALB/c小鼠SLE,且建立的SLE模型稳定可靠。
基金The project supported by National Natural Science Foundation of China(81573645,81673422)
文摘OBJECTIVE To investigate the effects of salvianolic acid A(SAA)in systemic lupus erythematosus(SLE)induced by pristane in BALB/c mice,this study was performed.METHODS Lupus mice were established by confirming elevated levels of autoantibodies and IL-6 after intraperitoneal injection of pristane.Micewere then treated with daily oral doses of SAA for 5months in parallel with mice treated with prednisone and aspirin as positive controls.The levels of autoantibodies were monitored at monthly intervals and nephritic symptoms observed by hematoxylin and eosin(H&E)and periodic acid-Schiff(PAS)staining.Western blot analysis of renal tissue was also employed.RESULTS SAA treatment caused a significant reduction in the levels of anti-Sm autoantibodies and reduced renal histopathological changes and pathological effects.SAA treatment also significantly inhibited the phosphorylation of IKK,IκB and NFκB in renal tissues of lupus mice.CONCLUSION The results suggest that SAA alleviates renal injury in pristane-induced SLE in BALB/c mice through inhibition of phosphorylation of IKK,IκB and NFκB.
基金supported by grants from the National Natural Science Foundation of China,Grant/Award Numbers:82160595,82373474the Applied Basic Research Project of Yunnan Provincial Science and Technology Department,Kunming Medical University,Grant/Award Numbers:202301AY070001-014,202201AY070001-111+1 种基金the Yunnan Technology Talent and Platform Plan for Academician and Expert Workstation,Grant/Award Number:202305AF150010Innovation Fund Project for Graduate Students of Kunming Medical University,Grant/Award Number:2023B021.
文摘Background:Systemic lupus erythematosus(SLE)is an autoimmune disease characterized by immune-mediated inflammation affecting multiple organs and systems.The aim of this study was to establish and validate a pristaneinduced SLE model in C57BL/6J mice and analyze immune cell alterations.Methods:Six-week-old female C57BL/6J mice were randomly assigned to two groups(n=6 per group).The pristane group received a single 0.5 mL intraperitoneal injection of pristane,whereas the control group received a single intraperitoneal injection of 0.5 mL saline.Urine samples were collected before injection and at 2,4,and 6 months after injection to monitor urinary protein levels.Six months postinjection,the mice were euthanized,and serum,kidney,and spleen tissues were collected.Serum antinuclear antibody(ANA),double-stranded DNA(dsDNA),and inflammatory cytokine levels(interleukin[IL]-1β,IL-6,tumor necrosis factor-α)were quantified by enzyme-linked immunosorbent assay.Histological alterations in kidney tissues were assessed using hematoxylin and eosin,periodic acid-Schiff,Masson,and silver staining,in addition to direct immunofluorescence for immunoglobulin G and complement component 3.Flow cytometry was used to assess immune cell alterations in the spleen.Results:Following the intraperitoneal injection of pristane,the mice exhibited a gradual increase in spleen size,body weight,and urinary protein levels.Serum levels of ANA,dsDNA,and inflammatory cytokines were elevated to varying degrees(p<0.05).Histological analysis of the kidney sections revealed characteristic nephritic alterations,including glomerular swelling and lymphocyte infiltration.In the spleen,T cell numbers decreased,whereas the proportion of myeloid cells significantly increased,particularly monocytes,neutrophils,and macrophages(p<0.05).Conclusion:Pristane successfully induced a SLE model in C57BL/6J mice,characterized by nephritic injury and significant alterations in immune cell populations.
基金supported by the National Natural Science Foundation of China(Nos.81573645 and 81473383)National Scientific&Technological Major Special Project“Significant Creation of New Drugs”(Nos.2013ZX09103001-008,2012ZX09103101-078 and2013ZX09508104)
文摘The purpose of this study was to investigate the effects of salvianolic acid A (SAA) in systemic lupus erythematosus (SLE) induced by pristane in BALB/c mice. Lupus mice were established by confirming elevated levels of autoantibodies and IL-6 after intraperitoneal injection of pristane. Mice were then treated with daily oral doses of SAA for 5 months in parallel with mice treated with prednisone and aspirin as positive controls. The levels of autoantibodies were monitored at monthly intervals and nephritic symptoms observed by hematoxylin and eosin(H&E) and periodic acid-Schiff (PAS) staining. Western blot analysis of renal tissue was also employed. SAA treatment caused a significant reduction in the levels of anti-Sm autoantibodies and reduced renal histopathological changes and pathological effects. SAA treatment also significantly inhibited the phosphorylation of IKK, I kappa B and NF kappa B in renal tissues of lupus mice. In conclusion, the results suggest that SAA alleviates renal injury in pristane-induced SLE in BALB/c mice through inhibition of phosphorylation of IKK, I kappa B and NF kappa B. (C) 2017 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V.
