组织型转谷氨酰胺酶在慢性肾脏疾病的表达及意义
The Expression and Significance of Tissue Transglutaminase in Human Chronic Kidney Disease
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摘要: 目的研究可溶性组织型转谷氨酰胺酶(tTG)在狼疮性肾炎(LN)、增生硬化性肾炎(PSGN)、过敏性紫癜性肾炎、IgA肾病患者肾组织的表达,探讨其临床意义.方法 37例慢性肾脏疾病患者肾活检标本根据疾病分为狼疮性肾病组(LN组,n=15),增生硬化组(PSGN组,n=7),IgA肾病组(IgA组,n=9),过敏性紫癜性肾炎组(n=6),同时设正常对照组(n=5).采用非生物素免疫组化两步法对肾活检组织可溶性tTG的表达水平进行检测,并结合临床资料及肾脏病理评分进行分析.结果各疾病组肾小球和肾小管间质可溶性tTG表达显著高于正常对照组(P<0.05).各疾病组肾小球、肾小管tTG的表达均差异无统计学意义(P>0.05).狼疮肾病Ⅳ型的肾小球和肾小管的表达面积都显著高于Ⅱ型组(P<0.05).LN组肾小球可溶性tTG表达面积与系膜增生的轻重程度呈正相关.LN组肾小球可溶性tTG表达面积与血清补体C3、C4呈负相关性.结论可溶性tTG在慢性肾脏疾病患者肾组织的表达与患者的原发肾脏疾病的病因无关.随着LN患者病变程度加重,可溶性tTG表达增高.tTG在慢性肾脏疾病患者的疾病进展中有重要作用,可作为靶向治疗的分子靶点.Abstract: Objective To investigate the expression of tissue Transglutaminase(tTG)in renal tissue of patients with chronic renal diseases,so as to analyze the clinical significance of tTG.Methods Biopsy samples from 37 patients with chronic renal disease were divided into four groups according to their primary disease,including LN group(n=15),PSGN group(n=7),IgA N group(n=9)and Nephritis of anaphylactoid puerperal group(n=6).Meanwhile,control group was established with 5 normal renal tissues.Expression of tTG in renal...
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Key words:
- Tissue Transglutaminase /
- Chronic kidney disease /
- Immunohistochemisty
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