AIM:To evaluate the relationship between gene polymorphism(BclI,ER22/23EK,N363S)and the occurrence,progression and sensitivity to glucocorticoid of lacrimal gland benign lymphoepithelial lesion(LGBLEL).METHODS:Clinica...AIM:To evaluate the relationship between gene polymorphism(BclI,ER22/23EK,N363S)and the occurrence,progression and sensitivity to glucocorticoid of lacrimal gland benign lymphoepithelial lesion(LGBLEL).METHODS:Clinical peripheral blood samples of 52 LGBLEL patients and 10 normal volunteers were collected for DNA extraction and polymerase chain reaction sequencing to analyze single nucleotide polymorphism(SNP)genotypes.The lacrimal tissues of LGBLEL were surgically removed and made into paraffin sections for subsequent hematoxylin-eosin(HE)and Masson staining analysis.The duration of disease and hormone use of LGBLEL patients from diagnosis to surgery were also analyzed.The Meta-analysis follows PRISMA guidelines to conducted a systematic review of human studies investigating the relationship between the NR3C1 BclI polymorphism and glucocorticoids(GCs)sensitivity.RESULTS:There was no association between ER22/23EK or N363S and the occurrence of LGBLEL or GCs sensitivity(P>0.05);BclI GC genotype was closely related to GCs resistance(P=0.03)as is the minor allele C(P=0.0017).The HE staining and Masson staining showed that the GC genotype of BclI remarkably slowed down the disease progression and reduced fibrosis(P<0.05),especially for GCs-dependent patients(P<0.0001).Meta-analysis showed that BclI was not significantly associated with GCs responsiveness.CONCLUSION:The LGBLEL patients who carry the NR3C1 BclI allele C may be more sensitive to GCs and associated with lower fibrosis and slower disease progression.The results may guide the clinical treatment strategy for the LGBLEL patients.展开更多
目的:分析激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)囊性变组织的骨修复机制,并观察活血通络胶囊含药血清对肥大软骨细胞成骨分化的影响。方法:(1)SONFH囊性变组织的骨修复机制分析。纳入6例采用全...目的:分析激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)囊性变组织的骨修复机制,并观察活血通络胶囊含药血清对肥大软骨细胞成骨分化的影响。方法:(1)SONFH囊性变组织的骨修复机制分析。纳入6例采用全髋关节置换术治疗的SONFH患者,术后收集坏死股骨头6个,其中3个股骨头用于囊性变组织的单细胞转录组测序,采用生物信息学方法分析囊性变组织中的细胞分类、软骨细胞的细胞亚群、肥大软骨细胞参与的生物过程;另外3个股骨头用于囊性变组织的病理学检查,分别采用苏木素-伊红染色、阿利新蓝染色、番红O-固绿染色观察囊性变组织中软骨细胞、肥大软骨细胞的分布与特征,采用免疫组织化学染色观察囊性变组织中肥大软骨细胞标志蛋白Ⅹ型胶原α1(collagen typeⅩα1,Col10α1)、基质金属蛋白酶(matrix metalloproteinase,MMP)13和成骨分化相关蛋白Runt相关转录因子2(Runt-related transcription factor 2,RUNX2)、骨桥蛋白(osteopontin,OPN)的表达情况。(2)活血通络胶囊含药血清对肥大软骨细胞成骨分化影响的分析。采用活血通络胶囊(活血通络胶囊粉末溶于蒸馏水)给大鼠灌胃,制备活血通络胶囊含药血清。取小鼠膝关节软骨,消化分离后进行培养。将小鼠软骨细胞接种于含有不同浓度的活血通络胶囊含药血清的完全培养基中,筛选活血通络胶囊含药血清的最佳干预浓度。取处于对数生长期的第1代小鼠软骨细胞,行肥大软骨细胞诱导成功后,分为成骨诱导组、5%含药血清干预组和对照组,成骨诱导组更换成骨诱导培养基培养,5%含药血清干预组更换含5%活血通络胶囊含药血清的成骨诱导培养基培养,对照组继续采用肥大诱导培养基培养;培养7 d后,分别采用碱性磷酸酶(alkaline phosphatase,ALP)染色和茜素红染色,观察细胞形态特征,分别采用实时定量PCR和蛋白质印迹法检测Ⅰ型胶原蛋白α1(collagenⅠα1,Col1α1)、ALP、RUNX2、OPN的mRNA相对表达量和ALP、RUNX2、OPN的蛋白相对表达量。结果:(1)SONFH囊性变组织单细胞转录组测序分析结果。共获得30224个细胞的单细胞转录组测序结果;细胞分类结果显示,囊性变组织中有8种细胞,包括T细胞、内皮细胞、成纤维细胞、软骨细胞、巨噬细胞、单核细胞、破骨细胞和肥大细胞;软骨细胞亚群分析共鉴定出5类亚群细胞,包括稳态软骨细胞、成纤维软骨细胞、炎症软骨细胞、肥大软骨细胞、前体肥大软骨细胞;差异基因富集分析结果显示,肥大软骨细胞主要参与细胞迁移正向调节、细胞分化、细胞外基质形成、骨化、细胞迁移和成骨细胞分化等生物过程。(2)SONFH囊性变组织的病理学检查结果。囊性变组织的边缘可见软骨细胞、肥大软骨细胞,且部分软骨组织呈现向骨小梁过渡的形态;Col10α1、MMP13、RUNX2、OPN在囊性变组织的边缘高表达。(3)活血通络胶囊含药血清干预肥大软骨细胞成骨分化的分析结果。经筛选,5%为活血通络胶囊含药血清的最佳干预浓度。ALP染色和茜素红染色结果显示,对照组无明显钙化结节,成骨诱导组有明显钙化结节,5%含药血清干预组钙化结节较成骨诱导组进一步增多;成骨诱导组细胞ALP、RUNX2、OPN、Col1α1的mRNA相对表达量和ALP、RUNX2、OPN的蛋白相对表达量均高于对照组(P=0.000,P=0.000,P=0.001,P=0.000;P=0.000,P=0.000,P=0.001),5%含药血清干预组细胞ALP、RUNX2、OPN、Col1α1的mRNA相对表达量和ALP、RUNX2、OPN的蛋白相对表达量均高于成骨诱导组(P=0.000,P=0.000,P=0.002,P=0.001;P=0.000,P=0.000,P=0.001)。结论:SONFH囊性变组织中存在肥大软骨细胞向成骨细胞分化的修复机制,而活血通络胶囊含药血清能够促进体外培养的肥大软骨细胞向成骨细胞分化。展开更多
Background：Benign lymphoepithelial lesion （BLEL） is characterized by symmetric bilateral swelling of the lacrimal and salivary glands and considered a subtype of immunoglobulin G4 （IgG4）-related sclerosing diseas...Background：Benign lymphoepithelial lesion （BLEL） is characterized by symmetric bilateral swelling of the lacrimal and salivary glands and considered a subtype of immunoglobulin G4 （IgG4）-related sclerosing disease,the etiology and pathogenesis of which has not been determined.The purpose of the present study was to analyze the clinical features of BLEL in the lacrimal gland and the relationship between the serum level of IgG4 and BLEL.Methods：Twenty consecutive patients with BLEL diagnosed in Department of Ophthalmology at Beijing Tongren Hospital,Capital Medical University between January 2012 and December 2013 were observed.The clinical features,imaging findings,laboratory tests,treatments and follow-up status of these 20 consecutive patients were analyzed.Results：In all 20 patients,the ratio of male to female was 1：4,the ages ranged from 28 to 57 years,the ratio of unilateral to bilateral eyes involvement was 1：4,and painless uncongested symmetrical swelling of the upper eyelid was the main clinical manifestation.Orbital magnetic resonance imaging （MRI） showed that all patients involved lacrimal gland,which were obviously enlarged with equal signals in T1W images and T2W images and obvious enhancement on contrast MRI.Extraocular muscles were involved in 5 patients,salivary gland in 8 patients,and frontal nerve in 3 patients.Serum IgG4 concentration was elevated in 18 patients.The treatment strategy mainly included surgery and steroid administration.Three patients were lost to follow-up,17 patients reached complete response,and no recurrence was observed.Conclusions：Eyelid swelling is the typical symptom of BLEL.Most of the patients involved bilateral lacrimal glands.High serum IgG4 level and abundant IgG4-positive plasma cell infiltration are the important features,which can be found in most of BLEL patients.Surgery combined with glucocorticoids is an efficient treatment strategy.展开更多
基金Supported by Natural Science Foundation of Beijing(No.7222025)Beijing Hospitals Authority’Ascent Plan(No.DFL20190201)Natural Science Foundation of Beijing Projects(No.81602408).
文摘AIM:To evaluate the relationship between gene polymorphism(BclI,ER22/23EK,N363S)and the occurrence,progression and sensitivity to glucocorticoid of lacrimal gland benign lymphoepithelial lesion(LGBLEL).METHODS:Clinical peripheral blood samples of 52 LGBLEL patients and 10 normal volunteers were collected for DNA extraction and polymerase chain reaction sequencing to analyze single nucleotide polymorphism(SNP)genotypes.The lacrimal tissues of LGBLEL were surgically removed and made into paraffin sections for subsequent hematoxylin-eosin(HE)and Masson staining analysis.The duration of disease and hormone use of LGBLEL patients from diagnosis to surgery were also analyzed.The Meta-analysis follows PRISMA guidelines to conducted a systematic review of human studies investigating the relationship between the NR3C1 BclI polymorphism and glucocorticoids(GCs)sensitivity.RESULTS:There was no association between ER22/23EK or N363S and the occurrence of LGBLEL or GCs sensitivity(P>0.05);BclI GC genotype was closely related to GCs resistance(P=0.03)as is the minor allele C(P=0.0017).The HE staining and Masson staining showed that the GC genotype of BclI remarkably slowed down the disease progression and reduced fibrosis(P<0.05),especially for GCs-dependent patients(P<0.0001).Meta-analysis showed that BclI was not significantly associated with GCs responsiveness.CONCLUSION:The LGBLEL patients who carry the NR3C1 BclI allele C may be more sensitive to GCs and associated with lower fibrosis and slower disease progression.The results may guide the clinical treatment strategy for the LGBLEL patients.
基金This study was supported by two grants from National Natural Science Foundation of China
文摘Background：Benign lymphoepithelial lesion （BLEL） is characterized by symmetric bilateral swelling of the lacrimal and salivary glands and considered a subtype of immunoglobulin G4 （IgG4）-related sclerosing disease,the etiology and pathogenesis of which has not been determined.The purpose of the present study was to analyze the clinical features of BLEL in the lacrimal gland and the relationship between the serum level of IgG4 and BLEL.Methods：Twenty consecutive patients with BLEL diagnosed in Department of Ophthalmology at Beijing Tongren Hospital,Capital Medical University between January 2012 and December 2013 were observed.The clinical features,imaging findings,laboratory tests,treatments and follow-up status of these 20 consecutive patients were analyzed.Results：In all 20 patients,the ratio of male to female was 1：4,the ages ranged from 28 to 57 years,the ratio of unilateral to bilateral eyes involvement was 1：4,and painless uncongested symmetrical swelling of the upper eyelid was the main clinical manifestation.Orbital magnetic resonance imaging （MRI） showed that all patients involved lacrimal gland,which were obviously enlarged with equal signals in T1W images and T2W images and obvious enhancement on contrast MRI.Extraocular muscles were involved in 5 patients,salivary gland in 8 patients,and frontal nerve in 3 patients.Serum IgG4 concentration was elevated in 18 patients.The treatment strategy mainly included surgery and steroid administration.Three patients were lost to follow-up,17 patients reached complete response,and no recurrence was observed.Conclusions：Eyelid swelling is the typical symptom of BLEL.Most of the patients involved bilateral lacrimal glands.High serum IgG4 level and abundant IgG4-positive plasma cell infiltration are the important features,which can be found in most of BLEL patients.Surgery combined with glucocorticoids is an efficient treatment strategy.
