AIM： To investigate the relationship between mucin 6 （MUC6） VNTR length and Hpylori infection. METHODS： Blood samples were collected from patients visiting the Can Tho General Hospital for upper gastrointestinal e...AIM： To investigate the relationship between mucin 6 （MUC6） VNTR length and Hpylori infection. METHODS： Blood samples were collected from patients visiting the Can Tho General Hospital for upper gastrointestinal endoscopy. DNA was isolated from whole blood, the repeated section was cut out using a restriction enzyme （Pvu 11） and the length of the allele fragments was determined by Southern blotting. Hpylori infection was diagnosed by ^14C urea breath test. For analysis, MUC6 allele fragment length was dichotomized as being either long （〉 13.5 kbp） or short （≤ 13.5 kbp） and patients were classified according to genotype [long- long （LL）, long-short （LS）, short-short （SS）]. RESULTS： 160 patients were studied （mean age 43 years, 36% were males, 58% H pylori positive）. MUC6 PvuⅡ-restricted allele fragment lengths ranged from 7 to 19 kbp. Of the patients with the LL, LS, SS MUC6 genotype, 43% （24/56）, 57% （25/58） and 76% （11/46） were infected with Hpylori, respectively （P = 0.003）. CONCLUSION： Short MUC6 alleles are associated with H pylori infection.展开更多
AIM： To assess histochemical expression of KL-6 and its clinicopathological significance in carcinoma of the ampulla of Vater. METHODS： Ampullary carcinoma tissues were collected from 38 patients who underwent pancr...AIM： To assess histochemical expression of KL-6 and its clinicopathological significance in carcinoma of the ampulla of Vater. METHODS： Ampullary carcinoma tissues were collected from 38 patients who underwent pancreatoduodenectomy or local resection. Tissues were subjected to immunohistochemical analysis using KL-6 antibody. RESULTS： Positive staining of ampullary carcinoma cells was observed in 26 （68.4%） cases. Staining was not found in the surrounding non-cancer regions of the ampullary tissues. Remarkable KL-6 expression was observed in invasive carcinoma cells in pancreatic and duodenal tissues and in metastatic carcinoma cells in lymph nodes. Positive KL-6 expression was related to lymph node metastasis （P = 0.020）, pancreatic invasion （P = 0.016）, duodenal invasion （P = 0.034）, and advanced stage of TNM clinical classification （P = 0.010）. Survival analysis showed that positive expression of KL-6 was related to a poorer prognosis （P = 0.029）. CONCLUSION： The aberrant expression of KL-6 mucin is significantly related to unfavorable behaviors of cardnoma of the ampulla of Vater.展开更多
AIM： To assess subcellular localization of KL-6 mucin and its clinicopathological significance in colorectal carcinoma as well as metastatic lymph node and liver tissues. METHODS： Colorectal carcinoma tissues as wel...AIM： To assess subcellular localization of KL-6 mucin and its clinicopathological significance in colorectal carcinoma as well as metastatic lymph node and liver tissues. METHODS： Colorectal carcinoma tissues as well as metastatic lymph node and liver tissues were collected from 82 patients who underwent colorectomy or hepatectomy. Tissues were subjected to immunohistochemical analysis using KL-6 antibody. RESULTS： Of the 82 colorectal carcinoma patients, 6 showed no staining, 29 showed positive staining only in the apical membrane, and 47 showed positive staining in the circumferential membrane and/or cytoplasm. Positive staining was not observed in non-cancerous colorectal epithelial cells surrounding the tumor tissues. The five-year survival rate was significantly lower in cases showing positive staining in the circumferential membrane and/or cytoplasm （63.0%） than those showing positive staining only in the apical membrane （85.7%） and those showing no staining （100%）. Statistical analysis between clinicopathological factors and subcellular localization of KL-6 mucin showed that KL-6 localization in the circumferential membrane and/or cytoplasm was significantly associated with the presence of venous invasion （P = 0.0003）, lymphatic invasion （P 〈 0.0001）, lymph node metastasis （P〈0.0001）, liver metastasis （P = 0.058）, and advanced histological stage （P〈 0.0001）. Positive staining was observed in all metastatic lesions tested as well as in the primary colorectal carcinoma tissues. CONCLUSION： The subcellular staining pattern of KL-6 in colorectal adenocarcinoma may be an important indicator for unfavorable behaviors such as lymph node and liver metastasis, as well as for the prognosis of patients.展开更多
AIM: To determine the pattern of secreted mucin expression in Helicobacter pylori (H. pylori)-related, nonsteroidal anti-inflammatory drug (NSAID)-related and idiopathic gastric ulcers. METHODS: We randomly selected 9...AIM: To determine the pattern of secreted mucin expression in Helicobacter pylori (H. pylori)-related, nonsteroidal anti-inflammatory drug (NSAID)-related and idiopathic gastric ulcers. METHODS: We randomly selected 92 patients with H. pylori-associated (n = 30), NSAID-associated (n = 18), combined H. pylori and NSAID-associated gastric ulcers (n = 24), and patients with idiopathic gastric ulcers (n = 20). Immunohistochemistry for T-cell CD4/CD8, andfor mucin 5AC (MUC5AC) and mucin 6 (MUC6), was performed on sections of the mucosa from the ulcer margin. Inflammation score was assessed according to the Sydney system. RESULTS: MUC5AC was expressed on the surface epithelium (98.9%) and neck glands (98.9%) with minimal expression in the deep glands (6.5%). MUC6 was strongly expressed in the deep glands (97.8%), variable in the neck glands (19.6%) and absent in the surface epithelium (0%). The pattern of mucin expression in idiopathic ulcer margins was not different from the expression in ulcers associated with H. pylori, NSAIDs, or combined H. pylori and NSAIDs. CD4/CD8 ratio was higher in H. pylori-positive patients (P = 0.009). Idiopathic ulcers are associated with hospitalized patients and have higher bleeding and mortality rates. CONCLUSION: Idiopathic ulcers have a unique clinical profile. Gastric mucin expression in idiopathic gastric ulcers is unchanged compared with H. pylori and/or NSAID-associated ulcers.展开更多
目的探讨初诊肺结核患者血浆白细胞介素-6(IL-6)、白细胞介素-17(IL-17)、白细胞介素-37(IL-37)及T细胞免疫球蛋白黏蛋白分子-3(TIM-3)水平变化及其临床意义。方法收集2018年1月~2020年10月百色市人民医院收治的活动性肺结核患者57例、...目的探讨初诊肺结核患者血浆白细胞介素-6(IL-6)、白细胞介素-17(IL-17)、白细胞介素-37(IL-37)及T细胞免疫球蛋白黏蛋白分子-3(TIM-3)水平变化及其临床意义。方法收集2018年1月~2020年10月百色市人民医院收治的活动性肺结核患者57例、肺炎患者50例和健康对照40例。57例肺结核患者中菌阳肺结核31例,菌阴肺结核26例。57例肺结核按病情轻重、病程长短及病变范围分为轻症组32例和重症组25例。采用酶联免疫吸附测定(ELISA)法检测各组血浆IL-6,IL-17,IL-37及TIM-3水平,并进行比较。结果肺结核组血浆IL-6(41.37±13.50 pg/ml vs 26.28±9.16pg/ml,3.05±1.08 pg/ml),IL-17(62.50±10.73pg/ml vs 30.47±7.18pg/ml,16.13±5.86pg/ml),IL-37(14.63±4.18pg/ml vs 9.85±2.74pg/ml,4.10±1.02 pg/ml)及TIM-3(18.17±5.16ng/ml vs 11.80±3.52ng/ml,6.24±2.15 ng/ml)水平均明显高于肺炎组和对照组,差异均有统计学意义(t=7.338~13.273,均P<0.001)。菌阳肺结核组血浆IL-6(52.60±15.71pg/ml vs 30.16±8.95 pg/ml),IL-17(72.35±15.20 pg/ml vs 46.52±9.13 pg/ml),IL-37(16.50±6.14 pg/ml vs 12.48±3.17 pg/ml)及TIM-3(21.70±7.93ng/ml vs 15.21±4.92 ng/ml)水平均明显高于菌阴肺结核组,差异具有统计学意义(t=8.472,10.161,6.925,9.106,均P<0.001)。重症组血浆IL-6(56.38±17.26pg/ml vs 25.84±9.27pg/ml),IL-17(79.50±16.38 pg/ml vs 48.20±8.74 pg/ml),IL-37(18.48±6.20 pg/ml vs 10.82±3.26pg/ml)及TIM-3(23.26±8.15ng/ml vs 13.90±4.71ng/ml)水平明显高于轻症组,差异具有统计学意义(t=12.642,14.513,10.205,13.172,均P<0.001)。结论血浆IL-6,IL-17,IL-37及TIM-3水平在肺结核患者中明显升高,对判断肺结核严重程度有一定的价值。展开更多
目的:探讨泼尼松对脂多糖(LPS)诱导的支气管上皮细胞黏蛋白5AC(MUC5AC)、细胞间黏附分子-1(ICAM-1)、白细胞介素-6(IL-6)分泌的影响。方法:体外分离鉴定原代支气管上皮细胞,LPS以1μg/m L剂量诱导细胞炎症反应,泼尼松5、10、20、40、50...目的:探讨泼尼松对脂多糖(LPS)诱导的支气管上皮细胞黏蛋白5AC(MUC5AC)、细胞间黏附分子-1(ICAM-1)、白细胞介素-6(IL-6)分泌的影响。方法:体外分离鉴定原代支气管上皮细胞,LPS以1μg/m L剂量诱导细胞炎症反应,泼尼松5、10、20、40、50、100μmol/L干预治疗,酶联免疫法(ELISA)检测细胞上清液MUC5AC、ICAM-1、IL-6水平变化,采用定量逆转录PCR(RT-PCR)、免疫印迹(Western-blot)检测MUC5AC、ICAM-1、IL-6 m RNA和蛋白表达情况,免疫荧光法检测核因子κB(NF-κB)核定位,Western-blot检测泼尼松干预治疗前后表皮生长因子受体(EGFR)、细胞外调节蛋白激酶1/2(ERK1/2)活化情况。结果:泼尼松以剂量依赖性降低LPS诱导的支气管上皮细胞内MUC5AC、ICAM-1、IL-6 m RNA水平和蛋白水平,抑制NF-κB、EGFR、ERK1/2活化。结论:泼尼松在体外能抑制MUC5AC、ICAM-1、IL-6的产生,其机制可能与抑制NF-κB、EGFR、ERK1/2的激活有关。展开更多
文摘AIM： To investigate the relationship between mucin 6 （MUC6） VNTR length and Hpylori infection. METHODS： Blood samples were collected from patients visiting the Can Tho General Hospital for upper gastrointestinal endoscopy. DNA was isolated from whole blood, the repeated section was cut out using a restriction enzyme （Pvu 11） and the length of the allele fragments was determined by Southern blotting. Hpylori infection was diagnosed by ^14C urea breath test. For analysis, MUC6 allele fragment length was dichotomized as being either long （〉 13.5 kbp） or short （≤ 13.5 kbp） and patients were classified according to genotype [long- long （LL）, long-short （LS）, short-short （SS）]. RESULTS： 160 patients were studied （mean age 43 years, 36% were males, 58% H pylori positive）. MUC6 PvuⅡ-restricted allele fragment lengths ranged from 7 to 19 kbp. Of the patients with the LL, LS, SS MUC6 genotype, 43% （24/56）, 57% （25/58） and 76% （11/46） were infected with Hpylori, respectively （P = 0.003）. CONCLUSION： Short MUC6 alleles are associated with H pylori infection.
基金Supported by Grants-in-aid From the Ministry of Education, Science, Sports, and Culture of Japan and a grant for Hi-Tech Research from Tokai University
文摘AIM： To assess histochemical expression of KL-6 and its clinicopathological significance in carcinoma of the ampulla of Vater. METHODS： Ampullary carcinoma tissues were collected from 38 patients who underwent pancreatoduodenectomy or local resection. Tissues were subjected to immunohistochemical analysis using KL-6 antibody. RESULTS： Positive staining of ampullary carcinoma cells was observed in 26 （68.4%） cases. Staining was not found in the surrounding non-cancer regions of the ampullary tissues. Remarkable KL-6 expression was observed in invasive carcinoma cells in pancreatic and duodenal tissues and in metastatic carcinoma cells in lymph nodes. Positive KL-6 expression was related to lymph node metastasis （P = 0.020）, pancreatic invasion （P = 0.016）, duodenal invasion （P = 0.034）, and advanced stage of TNM clinical classification （P = 0.010）. Survival analysis showed that positive expression of KL-6 was related to a poorer prognosis （P = 0.029）. CONCLUSION： The aberrant expression of KL-6 mucin is significantly related to unfavorable behaviors of cardnoma of the ampulla of Vater.
基金Supported by Grants-in-aid from the Ministry of Education,Science,Sports and Culture of Japan and a grant for Hi-Tech Research from Tokai University
文摘AIM： To assess subcellular localization of KL-6 mucin and its clinicopathological significance in colorectal carcinoma as well as metastatic lymph node and liver tissues. METHODS： Colorectal carcinoma tissues as well as metastatic lymph node and liver tissues were collected from 82 patients who underwent colorectomy or hepatectomy. Tissues were subjected to immunohistochemical analysis using KL-6 antibody. RESULTS： Of the 82 colorectal carcinoma patients, 6 showed no staining, 29 showed positive staining only in the apical membrane, and 47 showed positive staining in the circumferential membrane and/or cytoplasm. Positive staining was not observed in non-cancerous colorectal epithelial cells surrounding the tumor tissues. The five-year survival rate was significantly lower in cases showing positive staining in the circumferential membrane and/or cytoplasm （63.0%） than those showing positive staining only in the apical membrane （85.7%） and those showing no staining （100%）. Statistical analysis between clinicopathological factors and subcellular localization of KL-6 mucin showed that KL-6 localization in the circumferential membrane and/or cytoplasm was significantly associated with the presence of venous invasion （P = 0.0003）, lymphatic invasion （P 〈 0.0001）, lymph node metastasis （P〈0.0001）, liver metastasis （P = 0.058）, and advanced histological stage （P〈 0.0001）. Positive staining was observed in all metastatic lesions tested as well as in the primary colorectal carcinoma tissues. CONCLUSION： The subcellular staining pattern of KL-6 in colorectal adenocarcinoma may be an important indicator for unfavorable behaviors such as lymph node and liver metastasis, as well as for the prognosis of patients.
基金Beilinson Hospital Gastroenterology Department Trust Fund
文摘AIM: To determine the pattern of secreted mucin expression in Helicobacter pylori (H. pylori)-related, nonsteroidal anti-inflammatory drug (NSAID)-related and idiopathic gastric ulcers. METHODS: We randomly selected 92 patients with H. pylori-associated (n = 30), NSAID-associated (n = 18), combined H. pylori and NSAID-associated gastric ulcers (n = 24), and patients with idiopathic gastric ulcers (n = 20). Immunohistochemistry for T-cell CD4/CD8, andfor mucin 5AC (MUC5AC) and mucin 6 (MUC6), was performed on sections of the mucosa from the ulcer margin. Inflammation score was assessed according to the Sydney system. RESULTS: MUC5AC was expressed on the surface epithelium (98.9%) and neck glands (98.9%) with minimal expression in the deep glands (6.5%). MUC6 was strongly expressed in the deep glands (97.8%), variable in the neck glands (19.6%) and absent in the surface epithelium (0%). The pattern of mucin expression in idiopathic ulcer margins was not different from the expression in ulcers associated with H. pylori, NSAIDs, or combined H. pylori and NSAIDs. CD4/CD8 ratio was higher in H. pylori-positive patients (P = 0.009). Idiopathic ulcers are associated with hospitalized patients and have higher bleeding and mortality rates. CONCLUSION: Idiopathic ulcers have a unique clinical profile. Gastric mucin expression in idiopathic gastric ulcers is unchanged compared with H. pylori and/or NSAID-associated ulcers.
文摘目的探讨初诊肺结核患者血浆白细胞介素-6(IL-6)、白细胞介素-17(IL-17)、白细胞介素-37(IL-37)及T细胞免疫球蛋白黏蛋白分子-3(TIM-3)水平变化及其临床意义。方法收集2018年1月~2020年10月百色市人民医院收治的活动性肺结核患者57例、肺炎患者50例和健康对照40例。57例肺结核患者中菌阳肺结核31例,菌阴肺结核26例。57例肺结核按病情轻重、病程长短及病变范围分为轻症组32例和重症组25例。采用酶联免疫吸附测定(ELISA)法检测各组血浆IL-6,IL-17,IL-37及TIM-3水平,并进行比较。结果肺结核组血浆IL-6(41.37±13.50 pg/ml vs 26.28±9.16pg/ml,3.05±1.08 pg/ml),IL-17(62.50±10.73pg/ml vs 30.47±7.18pg/ml,16.13±5.86pg/ml),IL-37(14.63±4.18pg/ml vs 9.85±2.74pg/ml,4.10±1.02 pg/ml)及TIM-3(18.17±5.16ng/ml vs 11.80±3.52ng/ml,6.24±2.15 ng/ml)水平均明显高于肺炎组和对照组,差异均有统计学意义(t=7.338~13.273,均P<0.001)。菌阳肺结核组血浆IL-6(52.60±15.71pg/ml vs 30.16±8.95 pg/ml),IL-17(72.35±15.20 pg/ml vs 46.52±9.13 pg/ml),IL-37(16.50±6.14 pg/ml vs 12.48±3.17 pg/ml)及TIM-3(21.70±7.93ng/ml vs 15.21±4.92 ng/ml)水平均明显高于菌阴肺结核组,差异具有统计学意义(t=8.472,10.161,6.925,9.106,均P<0.001)。重症组血浆IL-6(56.38±17.26pg/ml vs 25.84±9.27pg/ml),IL-17(79.50±16.38 pg/ml vs 48.20±8.74 pg/ml),IL-37(18.48±6.20 pg/ml vs 10.82±3.26pg/ml)及TIM-3(23.26±8.15ng/ml vs 13.90±4.71ng/ml)水平明显高于轻症组,差异具有统计学意义(t=12.642,14.513,10.205,13.172,均P<0.001)。结论血浆IL-6,IL-17,IL-37及TIM-3水平在肺结核患者中明显升高,对判断肺结核严重程度有一定的价值。
文摘目的:探讨泼尼松对脂多糖(LPS)诱导的支气管上皮细胞黏蛋白5AC(MUC5AC)、细胞间黏附分子-1(ICAM-1)、白细胞介素-6(IL-6)分泌的影响。方法:体外分离鉴定原代支气管上皮细胞,LPS以1μg/m L剂量诱导细胞炎症反应,泼尼松5、10、20、40、50、100μmol/L干预治疗,酶联免疫法(ELISA)检测细胞上清液MUC5AC、ICAM-1、IL-6水平变化,采用定量逆转录PCR(RT-PCR)、免疫印迹(Western-blot)检测MUC5AC、ICAM-1、IL-6 m RNA和蛋白表达情况,免疫荧光法检测核因子κB(NF-κB)核定位,Western-blot检测泼尼松干预治疗前后表皮生长因子受体(EGFR)、细胞外调节蛋白激酶1/2(ERK1/2)活化情况。结果:泼尼松以剂量依赖性降低LPS诱导的支气管上皮细胞内MUC5AC、ICAM-1、IL-6 m RNA水平和蛋白水平,抑制NF-κB、EGFR、ERK1/2活化。结论:泼尼松在体外能抑制MUC5AC、ICAM-1、IL-6的产生,其机制可能与抑制NF-κB、EGFR、ERK1/2的激活有关。
