نتایج جستجو برای: seb

تعداد نتایج: 936  

ژورنال: :مجله طب نظامی 0
عباسعلی ایمانی فولادی imani fooladi a. a. department of microbiology, faculty of medicine, and research center of molecular biology, baqiyatallah(a.s.) ‎university of medical sciences‎دانشگاه علوم پزشکی بقیه ا... (عج) – دانشکده پزشکی- گروه میکروبیولوژی و مرکز تحقیقات بیولوژی مولکولی مرتضی ستاری sattari m. دانشگاه تربیت مدرس – دانشکده پزشکی - گروه باکتری شناسیسازمان اصلی تایید شده: دانشگاه علوم پزشکی بقیه الله (baqiyatallah university of medical sciences) زهیر محمدحسن mohammad hassan z. دانشگاه تربیت مدرس – دانشکده پزشکی – ‏گروه ایمنی شناسیسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) تقی عزیزی azizi t. ‎‏ دانشگاه علوم پزشکی بقیه ا... (عج) – دانشکده پزشکی- گروه پاتولوژی و مرکز تحقیقات بهداشت نظامی ‏سازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) مهدی مهدوی mahdavi m. دانشگاه تربیت مدرس – دانشکده پزشکی - گروه باکتری شناسیسازمان اصلی تایید شده: دانشگاه علوم پزشکی بقیه الله (baqiyatallah university of medical sciences) نیما خرم آبادی khoramabadi n. دانشگاه تربیت مدرس – دانشکده پزشکی - گروه باکتری شناسیسازمان اصلی تایید شده: دانشگاه تربیت مدرس (tarbiat modares university) سیدهمایون صدرایی‏

مقدمه. انتروتوکسینهای استافیلوکوکی ( seb ) در شرایط آزمایشگاهی ( in vitro ) باعث فعال سازی سلولهای t از طریق ژن vβ می شود. خصوصاً انتروتوکسین تیپ b استافیلوکوکوس اورئوس vβ8 سلولهای t را فعال می کند. مواد و روشها. در این تحقیق میزان تحریک و فعال سازی سلولهای t توسط seb در شرایط in vitro مورد بررسی قرار گرفت. به منظور دستیابی به دوز مطلوب توکسین جهت فعال سازی سلولهای t ، ابتدا سلولهای t از گره لمف...

Background & Aim: Bacterial superantigens, stimulate polyclonal T cells irrespective of their antigen specificity, resulting in a massive release of cytokines from T cells and monocytes, and suggest that that they could be candidates of new antitumor agents. Recent attempts have been done to specifically target superantigens towards tumors. Here, we evaluate TGFαL3-SEB fusion protein as a new a...

2018
Pei-Feng Liu Yanhan Wang Robert G Ulrich Christopher W Simmons Jean S VanderGheynst Richard L Gallo Chun-Ming Huang

Transgene introgression is a major concern associated with transgenic plant-based vaccines. Agroinfiltration can be used to selectively transform nonreproductive organs and avoid introgression. Here, we introduce a new vaccine modality in which Staphylococcal enterotoxin B (SEB) genes are agroinfiltrated into radishes (Raphanw sativus L.), resulting in transient expression and accumulation of S...

2016
Fanghua Tian Kaiyan Cao Yin Zhang Yuyang Zeng Rui Zhang Tieyan Chang Chao Zhou Minwei Xu Xiaoping Song Sen Yang

A spontaneous exchange bias (SEB) discovered by Wang et al. [Phys. Rev. Lett. 106 (2011) 077203.] after zero-field cooling (ZFC) has attracted recent attention due to its interesting physics. In this letter, we report a giant SEB tuned by Sb-doping in Ni50Mn38Ga12-xSbx Heusler alloys. Such an SEB was switched on below the blocking temperature of approximately 50 K. The maximum exchange bias HE ...

Journal: :jundishapur journal of microbiology 0
mehrdad gholamzad department of immunology, school of medical sciences, tarbiat modares university, tehran, ir iran mohammad reza khatami biotechnology research center, science and technology institute, tehran, ir iran soheil ghassemi department of pilot nanobiotechnology, pasteur institute of iran, tehran, ir iran ziba vaise malekshahi department of medical biotechnology, school of advanced medical sciences and technologies, tehran university of medical sciences, tehran, ir iran mohammad barat shooshtari biotechnology research center, science and technology institute, tehran, ir iran; biotechnology research center, science and technology institute, tehran, ir iran. tel: +98-9123146970

results in total, 80 food samples suspected of seb contamination were assessed using the two methods. fifty-four samples were contaminated based on the pcr technique and twenty-six of those were confirmed using the strip assay. conclusions the sensitivity of the sandwich method was approximately 10 ng/ml and that of the competitive method was approximately 250 ng/ml. in the lfd, a highly specif...

Journal: :Infection and immunity 1993
A G Bean R A Freiberg S Andrade S Menon A Zlotnik

We investigated the ability of interleukin 10 (IL-10) to protect mice against lethal shock induced by staphylococcal enterotoxin B (SEB). Treatment of mice with IL-10 prevented the death of mice injected with SEB in a dose-dependent manner. IL-10-mediated protection was apparent when administered either prior to or concurrent with SEB but was less effective when administered following SEB injec...

2010
Qiang Tong Ke Liu Xiao-Ming Lu Xiao-Gang Shu Guo-Bin Wang

Antibody-targeted superantigen has been developed into a new strategy to treat many malignant tumors. In this study, for specific targeting to gastric cancer cell, superantigen SEB (Staphylococcal Enterotoxin B) was genetically fused to the single-chain variable fragment of gastric carcinoma-associated antibody MG7(MG7-scFv) that recognizes the MG7 antigen frequently expressed in gastric cancer...

2018
Bhairab Mondal Shylaja Ramlal Padma S. Lavu Bhavanashri N Joseph Kingston

A simple, sensitive and selective colorimetric biosensor for the detection of Staphylococcal enterotoxin B (SEB) was developed using SEB-binding aptamer (SEB2) as recognition element and unmodified gold nanoparticles (AuNPs) as colorimetric probes. The assay is based on color change from red to purple due to conformational change of aptamer in the presence of SEB, and the phenomenon of salt-ind...

Journal: :The Journal of Experimental Medicine 1990
Y Kawabe A Ochi

The cellular basis of the in vitro and in vivo T cell responses to Staphylococcus enterotoxin B (SEB) has been investigated. The proliferation and cytotoxicity of V beta 8.1,2+,CD4+ and CD8+ T cells were observed in in vitro response to SEB. In primary cytotoxicity assays, CD4+ T cells from control spleens were more active than their CD8+ counterparts, however, in cells derived from SEB-primed ...

1990
Atsuo Ochi

The cellular basis of the in vitro and in vivo T cell responses to Staphylococcus enterotoxin B (SEB) has been investigated . The proliferation and cytotoxicity of V#8.1,2+,CD4+ and CD8+ T cells were observed in in vitro response to SEB. In primary cytotoxicity assays, CD4+ T cells from control spleens were more active than their CD8+ counterparts, however, in cells derived from SEB-primed mice...

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