AIM To investigate the anti-fibrotic effects of the traditional oriental herbal medicine Daikenchuto(DKT) associated with transient receptor potential ankyrin 1(TRPA1) channels in intestinal myofibroblasts. METHODS In...AIM To investigate the anti-fibrotic effects of the traditional oriental herbal medicine Daikenchuto(DKT) associated with transient receptor potential ankyrin 1(TRPA1) channels in intestinal myofibroblasts. METHODS Inflammatory and fibrotic changes were detected in a2,4,6-trinitrobenzenesulfonic acid(TNBS) chronic colitis model of wild-type and TRPA1-knockout(TRPA1-KO) mice via pathological staining and immunoblotting analysis.Ca^(2+) imaging experiments examined the effects of DKT and its components/ingredients on intestinal myofibroblast(In Myo Fib) cell TRPA1 channel function.Profibrotic factors and transforming growth factor (TGF) -β1-associated signaling were tested in an In Myo Fib cell line by q PCR and immunoblotting experiments.Samples from non-stenotic and stenotic regions of the intestines of patients with Crohn’s disease (CD) were used for pathological analysis. RESULTS Chronic treatment with TNBS caused more severe inflammation and fibrotic changes in TRPA1-KO than in wild-type mice.A one-week enema administration of DKT reduced fibrotic lesions in wild-type but not in TRPA1-KO mice.The active ingredients of DKT,i.e.,hydroxyα-sanshool and 6-shogaol,induced Ca^(2+) influxes in In Myo Fib,and this was antagonized by co-treatment with a selective TRPA1 channel blocker,HC-030031.DKT counteracted TGF-β1-induced expression of TypeⅠcollagen andα-smooth muscle actin (α-SMA) ,which were accompanied by a reduction in the phosphorylation of Smad-2 and p38-mitogen-activated protein kinase (p38-MAPK) and the expression of myocardin.Importantly,24-h incubation with a DKT active component Japanese Pepper increased the m RNA and protein expression levels of TRPA1 in In Myo Fibs,which in turn negatively regulated collagen synthesis.In the stenotic regions of the intestines of CD patients,TRPA1 expression was significantly enhanced.CONCLUSION The effects of DKT on the expression and activation of the TRPA1 channel could be advantageous for suppressing intestinal fibrosis,and benefit inflammatory bowel disease treatment.展开更多
Background: Transient receptor potential ankyrin (TRPA) 1 is known as a peripheral initiator of acute inflammation and hyperalgesia. However, its role in the facilitation of innate immune responses followed by resolut...Background: Transient receptor potential ankyrin (TRPA) 1 is known as a peripheral initiator of acute inflammation and hyperalgesia. However, its role in the facilitation of innate immune responses followed by resolution of the inflammation triggered by a surgical incision has not been fully investigated. Therefore, we evaluated the mechanism by which TRPA1 regulates the inflammatory responses mainly facilitated by neutrophils and macrophages in the early course of wound repair after an incision. Methods: Plantar incision was performed in wild-type and TRPA1-/- mice. The infiltration of polymorphonuclear neutrophils, macrophage phenotype, and induction of inflammatory mediators were assessed for 7 days postoperatively. Results: TRPA1-/-?mice exhibited decreased infiltration of polymorphonuclear neutrophilscompared with wild-type mice on day 1. Consistently, the influx of F4/80+ iNOS+ proinflammatory M1 macrophages to incised sites was markedly decreased on day 2. Similarly, F4/80+ CD206+M2 macrophages, which regulate the resolution of inflammation and promote wound healing in the later phase of acute inflammation, were significantly decreased in TRPA1-/- compared with those in wild-type mice on day 7. In addition, the induction of heme oxygenase-1, which promotes wound healing by switching phenotype of macrophages, was decreased in the early phase of acute inflammation, whereas the expression of proinflammatory mediators such as tumor necrosis factor and cyclooxygenase-2, and 15-lipoxygenase, which are involved in the resolution of inflammation was increased in the late phase in TRPA1-/- mice. Conclusions: Early innate immune responses including neutrophil infiltration and macrophage polarization at incised sites were inhibited in TRPA1-/- mice, associated with increased pro-inflammatory mediators in later phase. Peripheral TRPA1 may facilitate the acute inflammatory process, leading to the promotion of macrophage-mediated resolution of inflammation and wound repair after a surgical incision.展开更多
OBJECTIVE:To investigate the efficacy of Zhenxin Anshen formula(镇心安神方,ZXAS)on atopic dermatitis(AD)by transient receptor potential vanilloid 1(TRPV1)and transient receptor potential ankyrin 1(TRPA1)signalling pat...OBJECTIVE:To investigate the efficacy of Zhenxin Anshen formula(镇心安神方,ZXAS)on atopic dermatitis(AD)by transient receptor potential vanilloid 1(TRPV1)and transient receptor potential ankyrin 1(TRPA1)signalling pathway in mice and in vitro.METHODS:AD-like lesions were induced by 1-chloro-2,4-dinitrobenzene(DNCB)to the shaved dorsal skin of BALB/c mice.BALB/c mice were divided into five groups:normal control,model control,cetirizine,low-,medium-,and high-dose of ZXAS.After ZXAS in-tervention,the skin lesions and blood samples were collected for hematoxylin and eosin-stained and measuring the concentrations of inflammatory cytokines.Immunoglobulin E(IgE),interleukin(IL)-4,IL-5,IL-13,and thymic stromal lymphopoietin(TSLP)were de-tected by Enzyme-linked immunosorbent assay(ELISA).The spinal cords were collected for measuring the expression of gastrin-releasing peptide receptor(GRPR),TRPV1,and TRPA1 by using immunohistochemistry,western blotting,and quantitative real-time polymerase chain reaction(qR T-PCR)analyses.In addition,3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide(MTT)assay,flow cytometry,ELISA,and Western blotting were conducted for analysis of primary dorsal root ganglia(DRG)neurons in vitro.RESULTS:ZXAS treatment improved DNCB-induced AD-like lesions through reducing dermatitis score,number of scratching and epidermal thickness,accompanied by the de-creased IgE and Th2 inflammatory cytokines.ZXAS also supressed the mRNA and protein expression of GRPR,TRPV1,and TRPA1 in the spinal cord.The medicated sera of ZXAS decreased capsaicin-induced Ca^(2+)influx and downregulated the expression of TRPV1,TRPA1,and phospholipase C in DRG neurons.CONCLUSIONS:The therapeutic effect of ZXAS on AD may be related to the regulation of TRPV1 and TRPA1 and inhibition of Ca^(2+)signals in neurons.展开更多
目的探讨结直肠癌(colorectal cancer,CRC)组织ras反应元件结合蛋白1(ras-responsive element binding protein 1,RREB1),ankyrin重复结构域1(ankyrin repeat domain 1,ANKRD1)的表达及与临床病理特征和预后不良的关系。方法选取2013年1...目的探讨结直肠癌(colorectal cancer,CRC)组织ras反应元件结合蛋白1(ras-responsive element binding protein 1,RREB1),ankyrin重复结构域1(ankyrin repeat domain 1,ANKRD1)的表达及与临床病理特征和预后不良的关系。方法选取2013年1月~2016年12月复旦大学附属中山医院厦门医院收治的105例CRC患者,应用免疫组织化学SP法检测CRC患者癌组织和癌旁组织RREB1和ANKRD1蛋白表达,分析RREB1和ANKRD1蛋白表达与患者临床病理特征的关系,患者均随访5年,比较不同RREB1和ANKRD1表达患者的预后情况,并分析CRC患者预后不良的影响因素。采用Spearman相关系数分析RREB1与ANKRD1表达的相关性。结果CRC癌组织RREB1蛋白阳性率(59.05%)显著高于癌旁组织(27.61%),差异有统计学意义(χ^(2)=21.120,P=0.000)。CRC癌组织ANKRD1蛋白阳性率(31.43%)显著低于癌旁组织(60.95%),差异有统计学意义(χ^(2)=18.410,P=0.000)。TNM分期Ⅲ期、淋巴结转移N1~N2患者RREB1蛋白阳性率高于TNM分期Ⅰ~Ⅱ期、淋巴结转移N0患者,差异有统计学意义(χ^(2)=4.263,8.199,均P<0.05)。TNM分期Ⅲ期、淋巴结转移N1~N2患者ANKRD1蛋白阳性率低于TNM分期Ⅰ~Ⅱ期、淋巴结转移N0患者,差异有统计学意义(χ^(2)=5.515,7.411,均P<0.05)。RREB1高表达组5年生存率(54.84%)低于RREB1低表达组(74.42%),差异有统计学意义(χ^(2)=5.459,P=0.020);ANKRD1高表达组的5年生存率(78.79%)高于ANKRD1低表达组(55.56%),差异有统计学意义(χ^(2)=5.130,P=0.024)。RREB1高表达(HR=2.437,95%CI:1.113~4.684)、ANKRD1低表达(HR=0.573,95%CI:0.185~1.952)、TNM分期Ⅲ期(HR=2.202,95%CI:1.357~4.215)和淋巴结转移N1~N2(HR=1.247,95%CI:1.532~4.368)是CRC患者预后不良的危险因素(均P<0.05)。Spearman秩相关分析结果,CRC癌组织中RREB1与ANKRD1表达呈负相关(r=-0.389,P=0.036)。结论CRC癌组织中RREB1表达升高,而ANKRD1表达降低,二者共同参与CRC的发生发展,有望成为评估CRC患者预后的组织肿瘤标志物。展开更多
基金MEXT,KAKENHI,No.15K08978,No.22790677 and No.25860571a MEXT-Supported Program supporting research activities of female researchers+1 种基金the Clinical Research Foundationthe Central Research Institute of Fukuoka University,No.151045 and No.147104
文摘AIM To investigate the anti-fibrotic effects of the traditional oriental herbal medicine Daikenchuto(DKT) associated with transient receptor potential ankyrin 1(TRPA1) channels in intestinal myofibroblasts. METHODS Inflammatory and fibrotic changes were detected in a2,4,6-trinitrobenzenesulfonic acid(TNBS) chronic colitis model of wild-type and TRPA1-knockout(TRPA1-KO) mice via pathological staining and immunoblotting analysis.Ca^(2+) imaging experiments examined the effects of DKT and its components/ingredients on intestinal myofibroblast(In Myo Fib) cell TRPA1 channel function.Profibrotic factors and transforming growth factor (TGF) -β1-associated signaling were tested in an In Myo Fib cell line by q PCR and immunoblotting experiments.Samples from non-stenotic and stenotic regions of the intestines of patients with Crohn’s disease (CD) were used for pathological analysis. RESULTS Chronic treatment with TNBS caused more severe inflammation and fibrotic changes in TRPA1-KO than in wild-type mice.A one-week enema administration of DKT reduced fibrotic lesions in wild-type but not in TRPA1-KO mice.The active ingredients of DKT,i.e.,hydroxyα-sanshool and 6-shogaol,induced Ca^(2+) influxes in In Myo Fib,and this was antagonized by co-treatment with a selective TRPA1 channel blocker,HC-030031.DKT counteracted TGF-β1-induced expression of TypeⅠcollagen andα-smooth muscle actin (α-SMA) ,which were accompanied by a reduction in the phosphorylation of Smad-2 and p38-mitogen-activated protein kinase (p38-MAPK) and the expression of myocardin.Importantly,24-h incubation with a DKT active component Japanese Pepper increased the m RNA and protein expression levels of TRPA1 in In Myo Fibs,which in turn negatively regulated collagen synthesis.In the stenotic regions of the intestines of CD patients,TRPA1 expression was significantly enhanced.CONCLUSION The effects of DKT on the expression and activation of the TRPA1 channel could be advantageous for suppressing intestinal fibrosis,and benefit inflammatory bowel disease treatment.
文摘Background: Transient receptor potential ankyrin (TRPA) 1 is known as a peripheral initiator of acute inflammation and hyperalgesia. However, its role in the facilitation of innate immune responses followed by resolution of the inflammation triggered by a surgical incision has not been fully investigated. Therefore, we evaluated the mechanism by which TRPA1 regulates the inflammatory responses mainly facilitated by neutrophils and macrophages in the early course of wound repair after an incision. Methods: Plantar incision was performed in wild-type and TRPA1-/- mice. The infiltration of polymorphonuclear neutrophils, macrophage phenotype, and induction of inflammatory mediators were assessed for 7 days postoperatively. Results: TRPA1-/-?mice exhibited decreased infiltration of polymorphonuclear neutrophilscompared with wild-type mice on day 1. Consistently, the influx of F4/80+ iNOS+ proinflammatory M1 macrophages to incised sites was markedly decreased on day 2. Similarly, F4/80+ CD206+M2 macrophages, which regulate the resolution of inflammation and promote wound healing in the later phase of acute inflammation, were significantly decreased in TRPA1-/- compared with those in wild-type mice on day 7. In addition, the induction of heme oxygenase-1, which promotes wound healing by switching phenotype of macrophages, was decreased in the early phase of acute inflammation, whereas the expression of proinflammatory mediators such as tumor necrosis factor and cyclooxygenase-2, and 15-lipoxygenase, which are involved in the resolution of inflammation was increased in the late phase in TRPA1-/- mice. Conclusions: Early innate immune responses including neutrophil infiltration and macrophage polarization at incised sites were inhibited in TRPA1-/- mice, associated with increased pro-inflammatory mediators in later phase. Peripheral TRPA1 may facilitate the acute inflammatory process, leading to the promotion of macrophage-mediated resolution of inflammation and wound repair after a surgical incision.
基金the National Natural Science Foundation of China:Study on the Mechanism of Zhenxin Anshen Formula Regulating GRPR/MrgprA3/TRPs Signaling Pathway for Atop-ic Dermatitis based on the Theory of All Kinds of Diseases with PainItching+7 种基金and Sores are Exclusively Related to the HeartNo.81704087the Regulation of Zhenxin Anshen Formula on Neuroimmune Function in Atopic Dermatitis from STIM1-ORAI1 Mediated Store Oper-ated Calcium EntryNo.82274537Scientific and Technological Innovation Project of China Academy of Chinese Medical Sciences:Based on PAR2/TRPV1 Pathway to Regulate Nerve-Epidermal Pruritus Information Transmission to Explore the Mechanism of Longmu Decoction on“Stress-Type Atopic Dermatitis”MiceNo.CI2021A02315Belt and Road Initiative Cooperation Project of Traditional Chinese Medicine of the Chinese Academy of Traditional Chinese Medicine:Evaluation of the Effect of Chinese Medicine on Allergic Diseases and Material Basis ResearchNo.GH201910。
文摘OBJECTIVE:To investigate the efficacy of Zhenxin Anshen formula(镇心安神方,ZXAS)on atopic dermatitis(AD)by transient receptor potential vanilloid 1(TRPV1)and transient receptor potential ankyrin 1(TRPA1)signalling pathway in mice and in vitro.METHODS:AD-like lesions were induced by 1-chloro-2,4-dinitrobenzene(DNCB)to the shaved dorsal skin of BALB/c mice.BALB/c mice were divided into five groups:normal control,model control,cetirizine,low-,medium-,and high-dose of ZXAS.After ZXAS in-tervention,the skin lesions and blood samples were collected for hematoxylin and eosin-stained and measuring the concentrations of inflammatory cytokines.Immunoglobulin E(IgE),interleukin(IL)-4,IL-5,IL-13,and thymic stromal lymphopoietin(TSLP)were de-tected by Enzyme-linked immunosorbent assay(ELISA).The spinal cords were collected for measuring the expression of gastrin-releasing peptide receptor(GRPR),TRPV1,and TRPA1 by using immunohistochemistry,western blotting,and quantitative real-time polymerase chain reaction(qR T-PCR)analyses.In addition,3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide(MTT)assay,flow cytometry,ELISA,and Western blotting were conducted for analysis of primary dorsal root ganglia(DRG)neurons in vitro.RESULTS:ZXAS treatment improved DNCB-induced AD-like lesions through reducing dermatitis score,number of scratching and epidermal thickness,accompanied by the de-creased IgE and Th2 inflammatory cytokines.ZXAS also supressed the mRNA and protein expression of GRPR,TRPV1,and TRPA1 in the spinal cord.The medicated sera of ZXAS decreased capsaicin-induced Ca^(2+)influx and downregulated the expression of TRPV1,TRPA1,and phospholipase C in DRG neurons.CONCLUSIONS:The therapeutic effect of ZXAS on AD may be related to the regulation of TRPV1 and TRPA1 and inhibition of Ca^(2+)signals in neurons.
文摘目的探讨结直肠癌(colorectal cancer,CRC)组织ras反应元件结合蛋白1(ras-responsive element binding protein 1,RREB1),ankyrin重复结构域1(ankyrin repeat domain 1,ANKRD1)的表达及与临床病理特征和预后不良的关系。方法选取2013年1月~2016年12月复旦大学附属中山医院厦门医院收治的105例CRC患者,应用免疫组织化学SP法检测CRC患者癌组织和癌旁组织RREB1和ANKRD1蛋白表达,分析RREB1和ANKRD1蛋白表达与患者临床病理特征的关系,患者均随访5年,比较不同RREB1和ANKRD1表达患者的预后情况,并分析CRC患者预后不良的影响因素。采用Spearman相关系数分析RREB1与ANKRD1表达的相关性。结果CRC癌组织RREB1蛋白阳性率(59.05%)显著高于癌旁组织(27.61%),差异有统计学意义(χ^(2)=21.120,P=0.000)。CRC癌组织ANKRD1蛋白阳性率(31.43%)显著低于癌旁组织(60.95%),差异有统计学意义(χ^(2)=18.410,P=0.000)。TNM分期Ⅲ期、淋巴结转移N1~N2患者RREB1蛋白阳性率高于TNM分期Ⅰ~Ⅱ期、淋巴结转移N0患者,差异有统计学意义(χ^(2)=4.263,8.199,均P<0.05)。TNM分期Ⅲ期、淋巴结转移N1~N2患者ANKRD1蛋白阳性率低于TNM分期Ⅰ~Ⅱ期、淋巴结转移N0患者,差异有统计学意义(χ^(2)=5.515,7.411,均P<0.05)。RREB1高表达组5年生存率(54.84%)低于RREB1低表达组(74.42%),差异有统计学意义(χ^(2)=5.459,P=0.020);ANKRD1高表达组的5年生存率(78.79%)高于ANKRD1低表达组(55.56%),差异有统计学意义(χ^(2)=5.130,P=0.024)。RREB1高表达(HR=2.437,95%CI:1.113~4.684)、ANKRD1低表达(HR=0.573,95%CI:0.185~1.952)、TNM分期Ⅲ期(HR=2.202,95%CI:1.357~4.215)和淋巴结转移N1~N2(HR=1.247,95%CI:1.532~4.368)是CRC患者预后不良的危险因素(均P<0.05)。Spearman秩相关分析结果,CRC癌组织中RREB1与ANKRD1表达呈负相关(r=-0.389,P=0.036)。结论CRC癌组织中RREB1表达升高,而ANKRD1表达降低,二者共同参与CRC的发生发展,有望成为评估CRC患者预后的组织肿瘤标志物。
