BACKGROUND Forkhead box P3(FOXP3)is a specific marker for immunosuppressive regulatory T(T-reg)cells.T-regs and an immunosuppressive enzyme,indoleamine 2,3-dioxygenase(IDO),are associated with advanced disease in canc...BACKGROUND Forkhead box P3(FOXP3)is a specific marker for immunosuppressive regulatory T(T-reg)cells.T-regs and an immunosuppressive enzyme,indoleamine 2,3-dioxygenase(IDO),are associated with advanced disease in cancer.AIM To evaluate the co-expression of FOXP3 and IDO in triple negative breast cancer(TNBC)with respect to hormone-positive breast cancer patients from Pakistan.METHODS Immunohistochemistry was performed to analyze the expression of FOXP3,IDO,estrogen receptor,progesterone receptor,and human epidermal growth factor receptor on tissues of breast cancer patients(n=100):Hormone-positive breast cancer(n=51)and TNBC(n=49).A total of 100 patients were characterized as FOXP3 negative vs positive and further categorized based on low,medium,and high IDO expression score.Univariate and multivariate logistic regression models were used.RESULTS Out of 100 breast tumors,25%expressed FOXP3 positive T-regs.A significant coexpression of FOXP3 and IDO was observed among patients with TNBC(P=0.01)compared to those with hormone-positive breast cancer.Two variables were identified as significant independent risk factors for FOXP3 positive:IDO expression high(adjusted odds ratio(AOR)5.90;95%confidence interval(CI):1.22-28.64;P=0.03)and TNBC(AOR 2.80;95%CI:0.96-7.95;P=0.05).CONCLUSION Our data showed that FOXP3 positive cells might be associated with high expression of IDO in TNBC patients.FOXP3 and IDO co-expression may also suggest its involvement in disease,and evaluation of FOXP3 and IDO expression in TNBC patients may offer a new therapeutic option.展开更多
调节性T细胞(regulatory T cell,Treg)是一群胸腺来源的具有免疫抑制功能的T淋巴细胞,其与自身免疫疾病的发生、外周免疫耐受以及抗感染免疫、肿瘤免疫、移植免疫、变态反应等许多病理性免疫过程有着极其重要的关系。天然型调节性T细胞(...调节性T细胞(regulatory T cell,Treg)是一群胸腺来源的具有免疫抑制功能的T淋巴细胞,其与自身免疫疾病的发生、外周免疫耐受以及抗感染免疫、肿瘤免疫、移植免疫、变态反应等许多病理性免疫过程有着极其重要的关系。天然型调节性T细胞(natural Treg,n Treg)或称胸腺调节性T细胞(thymus regulatory T cell,t Treg)是调节性T细胞群中很重要的一个亚群。本文将对这一主要亚群及其分化、发育、增殖等过程和相关调控机制进行综述。展开更多
OBjECTIVE:To observe the relationship between reduced pulmonary function and regulatory T cells(Tregs)and helper T cells(Th)1/Th2 drift in a rat model of adjuvant arthritis(AA),and to study the impact of Xinfeng capsu...OBjECTIVE:To observe the relationship between reduced pulmonary function and regulatory T cells(Tregs)and helper T cells(Th)1/Th2 drift in a rat model of adjuvant arthritis(AA),and to study the impact of Xinfeng capsule(XFC)on pulmonary function and investigate the mechanism of action.METHODS:Forty rats were randomly divided into normal control group(NC),model control group(MC),Tripterygium glycosides tablet group(TPT),and XFC group,with 10 in each.Except for the NCgroup,AA was induced in all rats by intracutaneous injection of 0.1 mL Freund's complete adjuvant in the right paw.On the 19th day after modeling,the NC and MC groups were given physiological saline(0.9%),while the TPT and XFC groups were given TPT(10 mg/kg)and XFC(2.4 g/kg),once daily,respectively.Thirty days after administration,changes in paw swelling,arthritis index(AI),pulmonary function,levels of serumγ-interferon(IFN-γ)and interleukin(IL)-4,Tregs in peripheral blood,and IFN-γ,IL-4,Forkhead box transcription factor 3(FoxP3)in lung tissue were observed by enzyme-linked immunosorbent assay,flow cytometry,polymerase chain reaction,and western blot.RESULTS:Compared with the NC group,paw swelling,AI,IFN-γ,and Th1/Th2 were increased,and pulmonary function parameters,IL-4,FoxP3 were decreased significantly in the MC group(P<0.05 or P<0.01).Pulmonary function parameters,Treg,IL-4,FoxP3(and mRNA)were higher,and paw swelling,AI,and IFN-γ(and mRNA)were lower in the XFC group than those in the MC group.The XFC group was also much better than theTPT group in improving pulmonary function,FoxP3 mRNA,IFN-γ,IL-4,Th1/Th2,and IL-10(P<0.05 or P<0.01).CONCLUSION:Xinfeng capsule can improve pulmonary function by regulating the levels of Tregs,inhibiting the activation of Th1 to Th2 cells,inducing drift,maintaining cell immune suppression,correcting the imbalance of Th1/Th2,and reducing inflammatory mediators.展开更多
文摘BACKGROUND Forkhead box P3(FOXP3)is a specific marker for immunosuppressive regulatory T(T-reg)cells.T-regs and an immunosuppressive enzyme,indoleamine 2,3-dioxygenase(IDO),are associated with advanced disease in cancer.AIM To evaluate the co-expression of FOXP3 and IDO in triple negative breast cancer(TNBC)with respect to hormone-positive breast cancer patients from Pakistan.METHODS Immunohistochemistry was performed to analyze the expression of FOXP3,IDO,estrogen receptor,progesterone receptor,and human epidermal growth factor receptor on tissues of breast cancer patients(n=100):Hormone-positive breast cancer(n=51)and TNBC(n=49).A total of 100 patients were characterized as FOXP3 negative vs positive and further categorized based on low,medium,and high IDO expression score.Univariate and multivariate logistic regression models were used.RESULTS Out of 100 breast tumors,25%expressed FOXP3 positive T-regs.A significant coexpression of FOXP3 and IDO was observed among patients with TNBC(P=0.01)compared to those with hormone-positive breast cancer.Two variables were identified as significant independent risk factors for FOXP3 positive:IDO expression high(adjusted odds ratio(AOR)5.90;95%confidence interval(CI):1.22-28.64;P=0.03)and TNBC(AOR 2.80;95%CI:0.96-7.95;P=0.05).CONCLUSION Our data showed that FOXP3 positive cells might be associated with high expression of IDO in TNBC patients.FOXP3 and IDO co-expression may also suggest its involvement in disease,and evaluation of FOXP3 and IDO expression in TNBC patients may offer a new therapeutic option.
文摘调节性T细胞(regulatory T cell,Treg)是一群胸腺来源的具有免疫抑制功能的T淋巴细胞,其与自身免疫疾病的发生、外周免疫耐受以及抗感染免疫、肿瘤免疫、移植免疫、变态反应等许多病理性免疫过程有着极其重要的关系。天然型调节性T细胞(natural Treg,n Treg)或称胸腺调节性T细胞(thymus regulatory T cell,t Treg)是调节性T细胞群中很重要的一个亚群。本文将对这一主要亚群及其分化、发育、增殖等过程和相关调控机制进行综述。
基金Supported by the National Natural Science Foundation Project(No.81173211)Medical Key Subjects Chinese Paraly-sis Disease in the National School Construction Projects[Tra-ditional Chinese Medicine(2009)No.30]+3 种基金Anhui Science and Technology Office of Scientific Research Program(09020304046)Anhui Provincial Health Department of Tra-ditional Chinese Medicine Research Projects(No.2009-ZY05)Anhui Modern Chinese Medicine Basic and Applied Research and Development Projects Provincial Laboratory(2008 No.150)Anhui Medical and Technological Innovation Team project(No.2010TD005)
文摘OBjECTIVE:To observe the relationship between reduced pulmonary function and regulatory T cells(Tregs)and helper T cells(Th)1/Th2 drift in a rat model of adjuvant arthritis(AA),and to study the impact of Xinfeng capsule(XFC)on pulmonary function and investigate the mechanism of action.METHODS:Forty rats were randomly divided into normal control group(NC),model control group(MC),Tripterygium glycosides tablet group(TPT),and XFC group,with 10 in each.Except for the NCgroup,AA was induced in all rats by intracutaneous injection of 0.1 mL Freund's complete adjuvant in the right paw.On the 19th day after modeling,the NC and MC groups were given physiological saline(0.9%),while the TPT and XFC groups were given TPT(10 mg/kg)and XFC(2.4 g/kg),once daily,respectively.Thirty days after administration,changes in paw swelling,arthritis index(AI),pulmonary function,levels of serumγ-interferon(IFN-γ)and interleukin(IL)-4,Tregs in peripheral blood,and IFN-γ,IL-4,Forkhead box transcription factor 3(FoxP3)in lung tissue were observed by enzyme-linked immunosorbent assay,flow cytometry,polymerase chain reaction,and western blot.RESULTS:Compared with the NC group,paw swelling,AI,IFN-γ,and Th1/Th2 were increased,and pulmonary function parameters,IL-4,FoxP3 were decreased significantly in the MC group(P<0.05 or P<0.01).Pulmonary function parameters,Treg,IL-4,FoxP3(and mRNA)were higher,and paw swelling,AI,and IFN-γ(and mRNA)were lower in the XFC group than those in the MC group.The XFC group was also much better than theTPT group in improving pulmonary function,FoxP3 mRNA,IFN-γ,IL-4,Th1/Th2,and IL-10(P<0.05 or P<0.01).CONCLUSION:Xinfeng capsule can improve pulmonary function by regulating the levels of Tregs,inhibiting the activation of Th1 to Th2 cells,inducing drift,maintaining cell immune suppression,correcting the imbalance of Th1/Th2,and reducing inflammatory mediators.
