AIM： To investigate the function of monocytes in Crohn＇s disease （CD） patients and to correlate this with disease- associated nucleotide-binding oligomerization domain-2 （NOD2） gene variants. METHODS： Monocytes...AIM： To investigate the function of monocytes in Crohn＇s disease （CD） patients and to correlate this with disease- associated nucleotide-binding oligomerization domain-2 （NOD2） gene variants. METHODS： Monocytes from 47 consecutively referred CD patients and 9 healthy blood donors were cultured with interleukin （IL）-4 and granulocyte-macrophage colony-stimulating factor （GM-CSF）, and stimulated with lipopolysaccharide （LPS） or muramyldipeptide （MDP）, the putative ligand of NOD2. RESULTS： We found that monocytes from CD patients differentiated in vitro to mature dendritic cells （DCs）, as determined by immunophenotype and morphology. IVOD2 genotype was assessed in all subjects, and we observed high CD86 expression on immature and LPS-stimulated DCs in IVOD2 mutated CD patients, as compared with wtlVOD2 CD patients and controls. By contrast, CD86 expression levels of DCs induced to maturity with MDP derived from IVOD2-mutated subjects were comparable to those of normal subjects. The amount of IL-12p70 in patient-cell cultures was larger than in controls aEer LPS treatment, but not aEer treatment with MDR CONCLUSION： Our results suggest that DCs obtained from patients with mutations in the IVOD2 gene display an activated phenotype characterized by high CD86 expression, but have a diminished response to MDP when compared to the terminal differentiation phase. We speculate that the altered differentiation of monocytes might lead to an imbalance between inflammation and the killing ability of monocytes, and may be relevant to the pathogenesis of CD.展开更多
目的探究Eps15同源结构域蛋白2(Eps15 homology domain-containing protein 2,EHD2)在结肠癌细胞中的作用及其分子机制。方法在SW620细胞系中构建过表达EHD2的细胞模型,检测EMT相关标志分子物的变化,研究过表达EHD2对细胞株的生物学行...目的探究Eps15同源结构域蛋白2(Eps15 homology domain-containing protein 2,EHD2)在结肠癌细胞中的作用及其分子机制。方法在SW620细胞系中构建过表达EHD2的细胞模型,检测EMT相关标志分子物的变化,研究过表达EHD2对细胞株的生物学行为包括转移、侵袭、增殖及凋亡的影响。最后运用异种移植肿瘤模型验证过表达EHD2对裸鼠体内结肠癌的发生及发展的影响。结果过表达EHD2会抑制结肠癌细胞的增殖、迁移、侵袭及促进凋亡;在裸鼠体内,过表达EHD2可以抑制裸鼠皮下肿瘤的生长;且EHD2与EMT相关标志物的表达呈正相关,推测EHD2通过抑制EMT途径抑制结肠癌的进展。结论EHD2可能作为抑癌基因通过EMT进程抑制结肠癌的侵袭和转移。展开更多
目的 分析X-pert联合核苷酸结合寡聚化结构域蛋白2(NOD2)、自噬相关蛋白16样蛋白1(ATG16L1)在活动性肺结核患者疾病转归评估中的应用价值。方法 前瞻性选取2023年4月至2024年4月池州市人民医院收治的110例活动性肺结核患者为研究对象。...目的 分析X-pert联合核苷酸结合寡聚化结构域蛋白2(NOD2)、自噬相关蛋白16样蛋白1(ATG16L1)在活动性肺结核患者疾病转归评估中的应用价值。方法 前瞻性选取2023年4月至2024年4月池州市人民医院收治的110例活动性肺结核患者为研究对象。所有患者均行抗结核治疗、疾病转归评估,将转归患者60例作为转归组,未转归患者50例作为未转归组。收集两组患者的临床资料(年龄、体重指数、性别、吸烟史、贫血、累及肺野数、肺部空洞病变、利福平耐药)。治疗前行X-pert、NOD2、ATG16L1检测,比较两组X-pert阳性率及NOD2、ATG16L1表达水平。采用多因素Logistics回归分析分析活动性肺结核患者疾病转归的影响因素,采用受试者操作特征(ROC)曲线分析X-pert、NOD2、ATG16L1对活动性肺结核患者疾病转归的预测价值。结果 两组体重指数、吸烟史、贫血、累及肺野数、利福平耐药比较,差异均无统计学意义(P>0.05);与转归组相比,未转归组患者年龄较大[(56.15±19.34)vs.(63.18±12.84)岁],男性(71.67 vs. 90.00)%、肺部空洞病变(11.67 vs. 32.00)%比例较高,差异均有统计学意义(P<0.05)。与转归组相比,未转归组患者X-pert阳性率(75.00 vs. 90.00)%、NOD2[(164.31±15.55)vs.(199.29±24.63)ng/L]、ATG16L1[(8.95±1.1.74)vs.(12.15±2.26)ng/L]表达水平均较高,差异均有统计学意义(P<0.05)。多因素Logistics回归分析结果显示,年龄、性别、肺部空洞病变、X-pert、NOD2、ATG16L1为活动性肺结核患者疾病转归的危险因素(P<0.05)。与X-pert、NOD2、ATG16L1单项诊断相比,X-pert、NOD2、ATG16L1联合检测对活动性肺结核患者疾病转归的预测价值较高(P<0.05)。结论 疾病未转归活动性肺结核患者X-pert阳性率、NOD2、ATG16L1表达水平均高于转归患者,X-pert、NOD2、ATG16L1为活动性肺结核患者疾病转归的危险因素,X-pert联合NOD2、ATG16L1对活动性肺结核患者疾病转归的预测价值较高,为活动性肺结核患者疾病转归评估提供了有效依据。展开更多
文摘AIM： To investigate the function of monocytes in Crohn＇s disease （CD） patients and to correlate this with disease- associated nucleotide-binding oligomerization domain-2 （NOD2） gene variants. METHODS： Monocytes from 47 consecutively referred CD patients and 9 healthy blood donors were cultured with interleukin （IL）-4 and granulocyte-macrophage colony-stimulating factor （GM-CSF）, and stimulated with lipopolysaccharide （LPS） or muramyldipeptide （MDP）, the putative ligand of NOD2. RESULTS： We found that monocytes from CD patients differentiated in vitro to mature dendritic cells （DCs）, as determined by immunophenotype and morphology. IVOD2 genotype was assessed in all subjects, and we observed high CD86 expression on immature and LPS-stimulated DCs in IVOD2 mutated CD patients, as compared with wtlVOD2 CD patients and controls. By contrast, CD86 expression levels of DCs induced to maturity with MDP derived from IVOD2-mutated subjects were comparable to those of normal subjects. The amount of IL-12p70 in patient-cell cultures was larger than in controls aEer LPS treatment, but not aEer treatment with MDR CONCLUSION： Our results suggest that DCs obtained from patients with mutations in the IVOD2 gene display an activated phenotype characterized by high CD86 expression, but have a diminished response to MDP when compared to the terminal differentiation phase. We speculate that the altered differentiation of monocytes might lead to an imbalance between inflammation and the killing ability of monocytes, and may be relevant to the pathogenesis of CD.
文摘目的探究Eps15同源结构域蛋白2(Eps15 homology domain-containing protein 2,EHD2)在结肠癌细胞中的作用及其分子机制。方法在SW620细胞系中构建过表达EHD2的细胞模型,检测EMT相关标志分子物的变化,研究过表达EHD2对细胞株的生物学行为包括转移、侵袭、增殖及凋亡的影响。最后运用异种移植肿瘤模型验证过表达EHD2对裸鼠体内结肠癌的发生及发展的影响。结果过表达EHD2会抑制结肠癌细胞的增殖、迁移、侵袭及促进凋亡;在裸鼠体内,过表达EHD2可以抑制裸鼠皮下肿瘤的生长;且EHD2与EMT相关标志物的表达呈正相关,推测EHD2通过抑制EMT途径抑制结肠癌的进展。结论EHD2可能作为抑癌基因通过EMT进程抑制结肠癌的侵袭和转移。
文摘目的 分析X-pert联合核苷酸结合寡聚化结构域蛋白2(NOD2)、自噬相关蛋白16样蛋白1(ATG16L1)在活动性肺结核患者疾病转归评估中的应用价值。方法 前瞻性选取2023年4月至2024年4月池州市人民医院收治的110例活动性肺结核患者为研究对象。所有患者均行抗结核治疗、疾病转归评估,将转归患者60例作为转归组,未转归患者50例作为未转归组。收集两组患者的临床资料(年龄、体重指数、性别、吸烟史、贫血、累及肺野数、肺部空洞病变、利福平耐药)。治疗前行X-pert、NOD2、ATG16L1检测,比较两组X-pert阳性率及NOD2、ATG16L1表达水平。采用多因素Logistics回归分析分析活动性肺结核患者疾病转归的影响因素,采用受试者操作特征(ROC)曲线分析X-pert、NOD2、ATG16L1对活动性肺结核患者疾病转归的预测价值。结果 两组体重指数、吸烟史、贫血、累及肺野数、利福平耐药比较,差异均无统计学意义(P>0.05);与转归组相比,未转归组患者年龄较大[(56.15±19.34)vs.(63.18±12.84)岁],男性(71.67 vs. 90.00)%、肺部空洞病变(11.67 vs. 32.00)%比例较高,差异均有统计学意义(P<0.05)。与转归组相比,未转归组患者X-pert阳性率(75.00 vs. 90.00)%、NOD2[(164.31±15.55)vs.(199.29±24.63)ng/L]、ATG16L1[(8.95±1.1.74)vs.(12.15±2.26)ng/L]表达水平均较高,差异均有统计学意义(P<0.05)。多因素Logistics回归分析结果显示,年龄、性别、肺部空洞病变、X-pert、NOD2、ATG16L1为活动性肺结核患者疾病转归的危险因素(P<0.05)。与X-pert、NOD2、ATG16L1单项诊断相比,X-pert、NOD2、ATG16L1联合检测对活动性肺结核患者疾病转归的预测价值较高(P<0.05)。结论 疾病未转归活动性肺结核患者X-pert阳性率、NOD2、ATG16L1表达水平均高于转归患者,X-pert、NOD2、ATG16L1为活动性肺结核患者疾病转归的危险因素,X-pert联合NOD2、ATG16L1对活动性肺结核患者疾病转归的预测价值较高,为活动性肺结核患者疾病转归评估提供了有效依据。
