AIM: To evaluate the influence of preoperative FOLFOX chemotherapy on CCL20/CCR6 expression in liver metastases of stage IV colorectal cancer (CRC) patients.(/7 = 53) and in patients who did not receive FOLFOX ch...AIM: To evaluate the influence of preoperative FOLFOX chemotherapy on CCL20/CCR6 expression in liver metastases of stage IV colorectal cancer (CRC) patients.(/7 = 53) and in patients who did not receive FOLFOX chemotherapy prior to liver surgery (n = 29). RESULTS: Of the 53 patients who received FOLFOX, time to liver surgery was n〈 1 mo in 14 patients, 〈 1 year in 22 patients and 〉 1 year in 17 patients, respectively. In addition, we investigated the proliferation rate of CRC cells in liver metastases in the different patient groups. Both CCL20 and CCR6 mRNA and protein ex- pression levels were significantly increased in patients who received preoperative FOLFOX chemotherapy ~〈 12 mo before liver surgery (P 〈 0.001) in comparison to patients who did not undergo FOLFOX treatment. Further, proliferation of CRLM cells as measured by Ki-67 was increased in patients who underwent FOLFOX treat- ment. CCL20 and CCR6 expression levels were significantly increased in CRLM patients who had undergone preoperative FOLFOX chemotherapy. CONCLUSION: This chemokine/receptor up-regulation could lead to increased proliferation/migration through an autocrine mechanism which might be used by surviving metastatic cells to escape cell death caused by FOLFOX.展开更多
AIM: To investigate whether, or how, DA-9601, which is a new gastroprotective agent, inhibits TNF-α-induced inflammatory signals in gastric epithelial AGS cells. METHODS: Cell viability was determined by MTT assay. I...AIM: To investigate whether, or how, DA-9601, which is a new gastroprotective agent, inhibits TNF-α-induced inflammatory signals in gastric epithelial AGS cells. METHODS: Cell viability was determined by MTT assay. IL-8 and CCL20 promoter activities were determined by a luciferease reporter gene assay. NF-κB-dependent transcriptional activity was determined by I-κBαdegradation, NF-κB p65 nuclear translocation and a luciferase activity assay. IL-8 and CCL20 gene expression and protein secretion were determined by RT-PCR and an enzymelinked immunosorbent assay (ELISA). Total and phos-phorylated forms of mitogen-activated protein kinases (MAPKs) were determined by Western blot. RESULTS: Treatment of AGS cells with DA-9601 reduced TNF-α-induced IL-8 and CCL20 promoter activities, as well as their gene expression and protein release. TNF-αalso induced NF-κB-dependent transcriptional activity in AGS cells. In contrast, in cells treated with DA-9601, TNF-α-induced NF-κB activity was significantly blocked. Although all three MAP kinase family members were phosphorylated in response to TNF-α, a selective inhibitor of p38 kinase SB203580 only could inhibit both NF-κB-dependent transcriptional activity and IL-8 and CCL20 production, suggesting a potential link between p38 kinase and NF-κB-dependent pathways in AGS cells. Interestingly, DA-9601 also selectively inhibited p38 kinase phosphorylation induced by TNF-α. CONCLUSION: DA-9601 blocked TNF-α-mediated inflammatory signals by potentially modulating the p38 kinase pathway and/or a signal leading to NF-κBdependent pathways in gastric epithelial cells.展开更多
AIM: To study the effect of seminal plasma on Chemokine(C-C motif) ligand 20(CCL20) production by epithelial cells and its relationship with lactoferrin.METHODS: HEC-1A cells, a cell line derived from a monostratified...AIM: To study the effect of seminal plasma on Chemokine(C-C motif) ligand 20(CCL20) production by epithelial cells and its relationship with lactoferrin.METHODS: HEC-1A cells, a cell line derived from a monostratified endocervical epithelium, were incubated with samples of seminal plasma(diluted 1:10 in culture medium) recovered from human immunodeficiency virus(HIV) seronegative(HIV-) or HIV seropositive(HIV+) subjects. Recombinant human interleukin 1 beta(IL-1β) was used as positive control, and culture medium only as negative control. The measurement of CCL20 production in the supernatants of HEC-1A cells and of lactoferrin in seminal plasma was determined by enzyme-linked immunosorbent assay techniques. A fractionation of seminal plasma proteins was performed by ion exchange chromatography on a pool of seminal plasma specimens from HIV- subjects. Each fraction was tested for its ability to stimulate the production of CCL20 by HEC-1A cells and for its lactoferrin concentration. The HIV viral load in seminal plasma samples from HIV+ patients was measured using the HIV-Monitor kit(Roche Diagnostic Systems, Branchburg, NJ, United States).RESULTS: The positive control IL-1β was responsible for an increase of 11.36 ± 3.36 times in the production of CCL20. Stimulation of HEC-1A cells was performed in 34 seminal plasma samples(22 from HIV+ subjects and 12 from HIV- subjects). The mean production of CCL20 by HEC-1A in presence of seminal plasma from HIV- and HIV+ subjects was respectively 5.38 ± 0.91 and 7.57 ± 3.26 times higher than that obtained with the untreated cells(P < 0.05 between the two groups). Using the same 34 specimens of seminal plasma, no correlation was observed between the concentration of total proteins in seminal plasma and their ability to stimulate the secretion of CCL20 by HEC-1 cells. In contrast, the ability to produce CCL20 by HEC-1A cells correlated to the concentration of lactoferrin in the seminal plasma samples(r coefficient = 0.56; CI: 0.26-0.76; P < 0.001). After fractionation by ion exchange chromatography, the seminal plasma fractions exhibiting the highest concentrations of lactoferrin were responsible for the greatest stimulation of CCL20 production by HEC-1A cells(r coefficient = 0.89; CI: 0.78-0.95; P <0.0001). CONCLUSION: Lactoferrin present in seminal plasma correlated with an increased production of CCL20 by HEC-1A cells and therefore could facilitate HIV entry through the genital mucosa.展开更多
Objective:To explore the regulatory mechanism of ginsenoside Rh1 on breast cancer cell extravasation based on CCL20-CCR6.Methods:In 2021,a total of 34 patients with breast cancer were treated in Baoding First Central ...Objective:To explore the regulatory mechanism of ginsenoside Rh1 on breast cancer cell extravasation based on CCL20-CCR6.Methods:In 2021,a total of 34 patients with breast cancer were treated in Baoding First Central Hospital.During hospitalization,pathological examinations were performed,and all the patients were diagnosed with invasive ductal carcinoma.Out of the 34 cases,16 cases were found to have CCR6 expression in breast cancer tissues,in which they were recorded as the CCR6 expression group,whereas 18 cases did not have CCR6 expression;these cases were recorded as the CCR6 non-expression group.During the same period,21 normal patients were selected as the control group.The peripheral blood CCL20 level and the expression of CCR6 on the surface of CD3+T lymphocytes were analyzed.The extracts of cancer cells were collected,purified,and cultured,and the effect of ginsenoside Rh1 on the invasion and metastasis of breast cancer cells was analyzed.Results:The peripheral blood CCL20 level in the CCR6 expression group was significantly higher than that in the CCR6 non-expression group and the control group,in which p<0.05,indicating that the difference was statistically significant;at 12,24,and 48 hours,the cell survival rate of each dose group was significantly higher than that of the blank control group and the dimethyl sulfoxide(DMSO)group(p<0.05).At 48 hours,comparing the low-dose group with the high-dose group,the cell survival rate significantly decreased(p<0.05).Compared with the blank control group and DMSO group,the invasion ability of breast cancer cells could be reduced in both,high-and medium-dose groups,where p<0.05,indicating that the difference was statistically significant.Conclusion:CCL20 may play a role in the pathogenesis of certain breast cancers,and ginsenoside Rh1 can effectively regulate the invasion and migration of breast cancer cells.展开更多
Our previous studies have showed that C-C motif chemokine ligand 20(CCL20)advanced tumor progression and enhanced the chemoresistance of cancer cells by positively regulating breast cancer stem cell(BCSC)self-renewal....Our previous studies have showed that C-C motif chemokine ligand 20(CCL20)advanced tumor progression and enhanced the chemoresistance of cancer cells by positively regulating breast cancer stem cell(BCSC)self-renewal.However,it is unclear whether CCL20 affects breast cancer progression by remodeling the tumor microenvironment(TME).Here,we observed that polymorphonuclear myeloid-derived suppressor cells(PMN-MDSCs)were remarkably enriched in TME of CCL20-overexpressing cancer cell orthotopic allograft tumors.Mechanistically,CCL20 activated the differentiation of granulocyte-monocyte progenitors(GMPs)via its receptor C-C motif chemokine receptor 6(CCR6)leading to the PMN-MDSC expansion.PMN-MDSCs from CCL20-overexpressing cell orthotopic allograft tumors(CCL20-modulated PMN-MDSCs)secreted amounts of C-X-C motif chemokine ligand 2(CXCL2)and increased ALDH+BCSCs via activating CXCR2/NOTCH1/HEY1 signaling pathway.Furthermore,C-X-C motif chemokine receptor 2(CXCR2)antagonist SB225002 enhanced the docetaxel(DTX)effects on tumor growth by decreasing BCSCs in CCL20high-expressing tumors.These findings elucidated how CCL20 modulated the TME to promote cancer development,indicating a new therapeutic strategy by interfering with the interaction between PMN-MDSCs and BCSCs in breast cancer,especially in CCL20high-expressing breast cancer.展开更多
目的探讨血清CC趋化因子配体20(CCL20)及白介素-17(IL-17)水平与子痫前期的相关性及其对子痫前期的诊断效能。方法选择2021年1月至2022年12月陕西省人民医院产科收治的150例子痫前期孕妇为子痫前期组,另选取同期90例健康妊娠妇女为对照...目的探讨血清CC趋化因子配体20(CCL20)及白介素-17(IL-17)水平与子痫前期的相关性及其对子痫前期的诊断效能。方法选择2021年1月至2022年12月陕西省人民医院产科收治的150例子痫前期孕妇为子痫前期组,另选取同期90例健康妊娠妇女为对照组。采用酶联免疫吸附法(ELISA)检测血清CCL20及IL-17的表达水平,采用Pearson相关法分析血清CCL20及IL-17与子痫前期患者临床参数的相关性;采用受试者工作特征曲线(ROC)分析血清CCL20及IL-17对子痫前期的诊断价值。结果子痫前期组孕妇血清CCL20及IL-17水平均显著高于对照组(P<0.001)。子痫前期组孕妇血清CCL20及IL-17的表达均与收缩压(分别为r=0.463、r=0.545)、舒张压(分别为r=0.475、r=0.467)及尿蛋白(分别为r=0.302、r=0.342)呈显著正相关(P<0.001),而与终止妊娠孕周(分别为r=-0.281、r=-0.188)、新生儿出生体重(分别为r=-0.299、r=-0.200)及1 min Apgar评分(分别为r=-0.215、r=-0.194)呈显著负相关(P<0.05)。子痫前期组孕妇血清CCL20与IL-17水平呈显著正相关(r=0.615,P<0.001)。血清CCL20及IL-17诊断子痫前期的临界值分别为50.025 pg/ml及48.825 pg/ml,血清CCL20+IL-17联合诊断子痫前期的曲线下面积最大,灵敏度及特异度分别为87.3%及94.4%。结论子痫前期孕妇血清CCL20及IL-17的水平显著高于健康孕妇,且CCL20及IL-17水平与患者的血压、尿蛋白、妊娠结局及新生儿情况均存在显著相关性,两指标联合应用对子痫前期有一定的诊断价值。展开更多
目的观察CC趋化因子配体20(CCL20)在银屑病皮损中的表达及作用。方法采用免疫荧光观察银屑病患者及咪喹莫特诱导银屑病样小鼠皮损中CCL20的表达。采用胶带剥脱诱导小鼠银屑病模型,用银屑病皮损面积和疾病严重程度(psoriasis area and se...目的观察CC趋化因子配体20(CCL20)在银屑病皮损中的表达及作用。方法采用免疫荧光观察银屑病患者及咪喹莫特诱导银屑病样小鼠皮损中CCL20的表达。采用胶带剥脱诱导小鼠银屑病模型,用银屑病皮损面积和疾病严重程度(psoriasis area and severity index,PASI)评分标准,观察CCL20蛋白注射后银屑病样小鼠皮损的变化;显微镜下观察皮损组织形态学变化,测量表皮层垂直厚度。采用咪喹莫特诱导小鼠银屑病模型,用PASI评分标准,观察CCL20单克隆抗体注射对银屑病样小鼠皮损的影响,显微镜下观察皮损组织形态学变化,测量表皮层垂直厚度;免疫组化观察表皮增殖的变化;real-time PCR检测小鼠皮肤组织样本中CCL20的表达。结果银屑病患者及咪喹莫特诱导银屑病样小鼠皮损中CCL20的表达增加;CCL20蛋白复合胶带剥脱组(CCL20组)小鼠银屑病样皮损程度较重,红斑、鳞屑、浸润以及表皮增厚程度高于单纯胶带剥脱模型组;CCL20单克隆抗体组(anti-CCL20组)小鼠银屑病样皮损程度较轻,红斑、鳞屑、浸润、表皮增厚以及表皮细胞增殖程度轻于咪喹莫特模型组,皮肤组织CCL20的表达明显低于模型组。结论 CCL20在银屑病皮损中呈高表达,CCL20蛋白可加重胶带剥脱诱导小鼠银屑病样皮损,CCL20单克隆抗体注射对IMQ诱导的小鼠银屑病样皮损有一定的治疗作用。展开更多
目的研究肝活检组织趋化因子CC亚家族配体20(CCL20)在慢性乙型肝炎肝组织中的表达及其意义。方法以内参照竞争性逆转录聚合酶链反应对处于乙性肝炎病毒(Hepatitis B virus,HBV)不同感染状态的肝细胞以及人肝脏活检组织CCL20mRNA的表达...目的研究肝活检组织趋化因子CC亚家族配体20(CCL20)在慢性乙型肝炎肝组织中的表达及其意义。方法以内参照竞争性逆转录聚合酶链反应对处于乙性肝炎病毒(Hepatitis B virus,HBV)不同感染状态的肝细胞以及人肝脏活检组织CCL20mRNA的表达水平进行定量分析。结果在细胞水平和肝脏组织学两个层面上,HBV不同感染状态可影响CCL20的表达水平,CCL20表达量在不同感染模式下呈现未感染>持续性感染的关系(P<0.05)。结论趋化因子CCL20在乙型肝炎病毒持续性感染中表达下调。展开更多
文摘AIM: To evaluate the influence of preoperative FOLFOX chemotherapy on CCL20/CCR6 expression in liver metastases of stage IV colorectal cancer (CRC) patients.(/7 = 53) and in patients who did not receive FOLFOX chemotherapy prior to liver surgery (n = 29). RESULTS: Of the 53 patients who received FOLFOX, time to liver surgery was n〈 1 mo in 14 patients, 〈 1 year in 22 patients and 〉 1 year in 17 patients, respectively. In addition, we investigated the proliferation rate of CRC cells in liver metastases in the different patient groups. Both CCL20 and CCR6 mRNA and protein ex- pression levels were significantly increased in patients who received preoperative FOLFOX chemotherapy ~〈 12 mo before liver surgery (P 〈 0.001) in comparison to patients who did not undergo FOLFOX treatment. Further, proliferation of CRLM cells as measured by Ki-67 was increased in patients who underwent FOLFOX treat- ment. CCL20 and CCR6 expression levels were significantly increased in CRLM patients who had undergone preoperative FOLFOX chemotherapy. CONCLUSION: This chemokine/receptor up-regulation could lead to increased proliferation/migration through an autocrine mechanism which might be used by surviving metastatic cells to escape cell death caused by FOLFOX.
基金Supported by grants from the Korea Health 21 R&D Project, Ministry of Health and Welfare, No.01-PJ3-PG6-01GN09-003, and the Korea Food and Drug Administration, No. 05142-620
文摘AIM: To investigate whether, or how, DA-9601, which is a new gastroprotective agent, inhibits TNF-α-induced inflammatory signals in gastric epithelial AGS cells. METHODS: Cell viability was determined by MTT assay. IL-8 and CCL20 promoter activities were determined by a luciferease reporter gene assay. NF-κB-dependent transcriptional activity was determined by I-κBαdegradation, NF-κB p65 nuclear translocation and a luciferase activity assay. IL-8 and CCL20 gene expression and protein secretion were determined by RT-PCR and an enzymelinked immunosorbent assay (ELISA). Total and phos-phorylated forms of mitogen-activated protein kinases (MAPKs) were determined by Western blot. RESULTS: Treatment of AGS cells with DA-9601 reduced TNF-α-induced IL-8 and CCL20 promoter activities, as well as their gene expression and protein release. TNF-αalso induced NF-κB-dependent transcriptional activity in AGS cells. In contrast, in cells treated with DA-9601, TNF-α-induced NF-κB activity was significantly blocked. Although all three MAP kinase family members were phosphorylated in response to TNF-α, a selective inhibitor of p38 kinase SB203580 only could inhibit both NF-κB-dependent transcriptional activity and IL-8 and CCL20 production, suggesting a potential link between p38 kinase and NF-κB-dependent pathways in AGS cells. Interestingly, DA-9601 also selectively inhibited p38 kinase phosphorylation induced by TNF-α. CONCLUSION: DA-9601 blocked TNF-α-mediated inflammatory signals by potentially modulating the p38 kinase pathway and/or a signal leading to NF-κBdependent pathways in gastric epithelial cells.
基金Supported by The Brazilian Federal Agency CAPES(Coordenao de Aperfeioamento de Pessoal de nível Superior)evaluation of graduate education
文摘AIM: To study the effect of seminal plasma on Chemokine(C-C motif) ligand 20(CCL20) production by epithelial cells and its relationship with lactoferrin.METHODS: HEC-1A cells, a cell line derived from a monostratified endocervical epithelium, were incubated with samples of seminal plasma(diluted 1:10 in culture medium) recovered from human immunodeficiency virus(HIV) seronegative(HIV-) or HIV seropositive(HIV+) subjects. Recombinant human interleukin 1 beta(IL-1β) was used as positive control, and culture medium only as negative control. The measurement of CCL20 production in the supernatants of HEC-1A cells and of lactoferrin in seminal plasma was determined by enzyme-linked immunosorbent assay techniques. A fractionation of seminal plasma proteins was performed by ion exchange chromatography on a pool of seminal plasma specimens from HIV- subjects. Each fraction was tested for its ability to stimulate the production of CCL20 by HEC-1A cells and for its lactoferrin concentration. The HIV viral load in seminal plasma samples from HIV+ patients was measured using the HIV-Monitor kit(Roche Diagnostic Systems, Branchburg, NJ, United States).RESULTS: The positive control IL-1β was responsible for an increase of 11.36 ± 3.36 times in the production of CCL20. Stimulation of HEC-1A cells was performed in 34 seminal plasma samples(22 from HIV+ subjects and 12 from HIV- subjects). The mean production of CCL20 by HEC-1A in presence of seminal plasma from HIV- and HIV+ subjects was respectively 5.38 ± 0.91 and 7.57 ± 3.26 times higher than that obtained with the untreated cells(P < 0.05 between the two groups). Using the same 34 specimens of seminal plasma, no correlation was observed between the concentration of total proteins in seminal plasma and their ability to stimulate the secretion of CCL20 by HEC-1 cells. In contrast, the ability to produce CCL20 by HEC-1A cells correlated to the concentration of lactoferrin in the seminal plasma samples(r coefficient = 0.56; CI: 0.26-0.76; P < 0.001). After fractionation by ion exchange chromatography, the seminal plasma fractions exhibiting the highest concentrations of lactoferrin were responsible for the greatest stimulation of CCL20 production by HEC-1A cells(r coefficient = 0.89; CI: 0.78-0.95; P <0.0001). CONCLUSION: Lactoferrin present in seminal plasma correlated with an increased production of CCL20 by HEC-1A cells and therefore could facilitate HIV entry through the genital mucosa.
基金supported by grants from The Medical Science Research Project of Hebei Province(20220282)the Key Laboratory of Molecular Pathology and Early Diagnosis of Tumor in Hebei Province.
文摘Objective:To explore the regulatory mechanism of ginsenoside Rh1 on breast cancer cell extravasation based on CCL20-CCR6.Methods:In 2021,a total of 34 patients with breast cancer were treated in Baoding First Central Hospital.During hospitalization,pathological examinations were performed,and all the patients were diagnosed with invasive ductal carcinoma.Out of the 34 cases,16 cases were found to have CCR6 expression in breast cancer tissues,in which they were recorded as the CCR6 expression group,whereas 18 cases did not have CCR6 expression;these cases were recorded as the CCR6 non-expression group.During the same period,21 normal patients were selected as the control group.The peripheral blood CCL20 level and the expression of CCR6 on the surface of CD3+T lymphocytes were analyzed.The extracts of cancer cells were collected,purified,and cultured,and the effect of ginsenoside Rh1 on the invasion and metastasis of breast cancer cells was analyzed.Results:The peripheral blood CCL20 level in the CCR6 expression group was significantly higher than that in the CCR6 non-expression group and the control group,in which p<0.05,indicating that the difference was statistically significant;at 12,24,and 48 hours,the cell survival rate of each dose group was significantly higher than that of the blank control group and the dimethyl sulfoxide(DMSO)group(p<0.05).At 48 hours,comparing the low-dose group with the high-dose group,the cell survival rate significantly decreased(p<0.05).Compared with the blank control group and DMSO group,the invasion ability of breast cancer cells could be reduced in both,high-and medium-dose groups,where p<0.05,indicating that the difference was statistically significant.Conclusion:CCL20 may play a role in the pathogenesis of certain breast cancers,and ginsenoside Rh1 can effectively regulate the invasion and migration of breast cancer cells.
基金The National Key Research and Development Program of China(2020YFA0112300)National Natural Science Foundation of China(82230103,81930075,82203399,82073267)+4 种基金“Ten Thousand Plan”-National High-Level Talents Special Support Plan(WR-YK5202101)Program for Outstanding Leading Talents in ShanghaiProgram for Outstanding Medical Academic Leader in Shanghai(2019LJ04)Program of Shanghai Academic/Technology Research Leader(20XD1400700)The innovative research team of high-level local university in Shanghai.
文摘Our previous studies have showed that C-C motif chemokine ligand 20(CCL20)advanced tumor progression and enhanced the chemoresistance of cancer cells by positively regulating breast cancer stem cell(BCSC)self-renewal.However,it is unclear whether CCL20 affects breast cancer progression by remodeling the tumor microenvironment(TME).Here,we observed that polymorphonuclear myeloid-derived suppressor cells(PMN-MDSCs)were remarkably enriched in TME of CCL20-overexpressing cancer cell orthotopic allograft tumors.Mechanistically,CCL20 activated the differentiation of granulocyte-monocyte progenitors(GMPs)via its receptor C-C motif chemokine receptor 6(CCR6)leading to the PMN-MDSC expansion.PMN-MDSCs from CCL20-overexpressing cell orthotopic allograft tumors(CCL20-modulated PMN-MDSCs)secreted amounts of C-X-C motif chemokine ligand 2(CXCL2)and increased ALDH+BCSCs via activating CXCR2/NOTCH1/HEY1 signaling pathway.Furthermore,C-X-C motif chemokine receptor 2(CXCR2)antagonist SB225002 enhanced the docetaxel(DTX)effects on tumor growth by decreasing BCSCs in CCL20high-expressing tumors.These findings elucidated how CCL20 modulated the TME to promote cancer development,indicating a new therapeutic strategy by interfering with the interaction between PMN-MDSCs and BCSCs in breast cancer,especially in CCL20high-expressing breast cancer.
文摘目的探讨血清CC趋化因子配体20(CCL20)及白介素-17(IL-17)水平与子痫前期的相关性及其对子痫前期的诊断效能。方法选择2021年1月至2022年12月陕西省人民医院产科收治的150例子痫前期孕妇为子痫前期组,另选取同期90例健康妊娠妇女为对照组。采用酶联免疫吸附法(ELISA)检测血清CCL20及IL-17的表达水平,采用Pearson相关法分析血清CCL20及IL-17与子痫前期患者临床参数的相关性;采用受试者工作特征曲线(ROC)分析血清CCL20及IL-17对子痫前期的诊断价值。结果子痫前期组孕妇血清CCL20及IL-17水平均显著高于对照组(P<0.001)。子痫前期组孕妇血清CCL20及IL-17的表达均与收缩压(分别为r=0.463、r=0.545)、舒张压(分别为r=0.475、r=0.467)及尿蛋白(分别为r=0.302、r=0.342)呈显著正相关(P<0.001),而与终止妊娠孕周(分别为r=-0.281、r=-0.188)、新生儿出生体重(分别为r=-0.299、r=-0.200)及1 min Apgar评分(分别为r=-0.215、r=-0.194)呈显著负相关(P<0.05)。子痫前期组孕妇血清CCL20与IL-17水平呈显著正相关(r=0.615,P<0.001)。血清CCL20及IL-17诊断子痫前期的临界值分别为50.025 pg/ml及48.825 pg/ml,血清CCL20+IL-17联合诊断子痫前期的曲线下面积最大,灵敏度及特异度分别为87.3%及94.4%。结论子痫前期孕妇血清CCL20及IL-17的水平显著高于健康孕妇,且CCL20及IL-17水平与患者的血压、尿蛋白、妊娠结局及新生儿情况均存在显著相关性,两指标联合应用对子痫前期有一定的诊断价值。
文摘目的观察CC趋化因子配体20(CCL20)在银屑病皮损中的表达及作用。方法采用免疫荧光观察银屑病患者及咪喹莫特诱导银屑病样小鼠皮损中CCL20的表达。采用胶带剥脱诱导小鼠银屑病模型,用银屑病皮损面积和疾病严重程度(psoriasis area and severity index,PASI)评分标准,观察CCL20蛋白注射后银屑病样小鼠皮损的变化;显微镜下观察皮损组织形态学变化,测量表皮层垂直厚度。采用咪喹莫特诱导小鼠银屑病模型,用PASI评分标准,观察CCL20单克隆抗体注射对银屑病样小鼠皮损的影响,显微镜下观察皮损组织形态学变化,测量表皮层垂直厚度;免疫组化观察表皮增殖的变化;real-time PCR检测小鼠皮肤组织样本中CCL20的表达。结果银屑病患者及咪喹莫特诱导银屑病样小鼠皮损中CCL20的表达增加;CCL20蛋白复合胶带剥脱组(CCL20组)小鼠银屑病样皮损程度较重,红斑、鳞屑、浸润以及表皮增厚程度高于单纯胶带剥脱模型组;CCL20单克隆抗体组(anti-CCL20组)小鼠银屑病样皮损程度较轻,红斑、鳞屑、浸润、表皮增厚以及表皮细胞增殖程度轻于咪喹莫特模型组,皮肤组织CCL20的表达明显低于模型组。结论 CCL20在银屑病皮损中呈高表达,CCL20蛋白可加重胶带剥脱诱导小鼠银屑病样皮损,CCL20单克隆抗体注射对IMQ诱导的小鼠银屑病样皮损有一定的治疗作用。
文摘目的研究肝活检组织趋化因子CC亚家族配体20(CCL20)在慢性乙型肝炎肝组织中的表达及其意义。方法以内参照竞争性逆转录聚合酶链反应对处于乙性肝炎病毒(Hepatitis B virus,HBV)不同感染状态的肝细胞以及人肝脏活检组织CCL20mRNA的表达水平进行定量分析。结果在细胞水平和肝脏组织学两个层面上,HBV不同感染状态可影响CCL20的表达水平,CCL20表达量在不同感染模式下呈现未感染>持续性感染的关系(P<0.05)。结论趋化因子CCL20在乙型肝炎病毒持续性感染中表达下调。