نتایج جستجو برای: protective antigen

تعداد نتایج: 307620  

Ebrahim Azimi, Jalal Babaie, M. Reza Sadaie, Mahboobe Berizi, Majid Golkar, Reyhaneh Mohabati, Robab Homayoun, Samira Amiri,

BBackground: We have previously reported that immunization with GRA 2 antigen of Toxoplasma gondii induces protective immunity in CBA /J (H2k) and BALB/c mice (H2d). We aimed to examine whether immunization of a distinct strain of rodent with recombinant dense granule antigens (GRA2) combined with monophosphorryl lipid A (MPL) adjuvant elicits protective immune response against T. gondii. Metho...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Davide Serruto Tiziana Spadafina Laura Ciucchi Lisa A Lewis Sanjay Ram Marta Tontini Laura Santini Alessia Biolchi Kate L Seib Marzia M Giuliani John J Donnelly Francesco Berti Silvana Savino Maria Scarselli Paolo Costantino J Simon Kroll Clíona O'Dwyer Jiazhou Qiu Andrew G Plaut Richard Moxon Rino Rappuoli Mariagrazia Pizza Beatrice Aricò

GNA2132 is a Neisseria meningitidis antigen of unknown function, discovered by reverse vaccinology, which has been shown to induce bactericidal antibodies in animal models. Here we show that this antigen induces protective immunity in humans and it is recognized by sera of patients after meningococcal disease. The protein binds heparin in vitro through an Arg-rich region and this property corre...

Journal: :Vaccine 2014
Shousun C Szu Keith P Klugman Steven Hunt

BACKGROUND The capsular polysaccharide of Salmonella enterica serovar Typhi, Vi antigen, is an essential virulence factor and a protective antigen. Similar to other polysaccharide vaccines, the protective action of Vi, both to the polysaccharide alone or when presented as a conjugate, is mediated by serum IgG Vi antibodies. The evaluation of Vi capsular polysaccharide based vaccines to prevent ...

2014

W0 WO 01/21656 A2 W0 WO 01/82788 A2 3/2001 11/2001 Puziss et al (Journal of Bacteriology, v01. 85, 1963, p. 230-236).* Ramirez et al (Abstract of SIM Meeting, Nov. 1, 2001).* Skolnick et a1. (Trends in Biotechnology 18: 34-39, 2000).* Boslego et al (Vaccines and lmmunotherapy, 1991, Chapter 17).* Ellis (Vaccines, W.B. Saunders Company, Chapter 29, 1988, pp. 568-574).* Ahuja et al., “Rapid puri?...

2014
Georgina N. Montagna Macarena Beigier-Bompadre Martina Becker Richard A. Kroczek Stefan H. E. Kaufmann Kai Matuschewski

Protective immunity against preerythrocytic malaria parasite infection is difficult to achieve. Intracellular Plasmodium parasites likely minimize antigen presentation by surface-expressed major histocompatibility complex class I (MHC-I) molecules on infected cells, yet they actively remodel their host cells by export of parasite factors. Whether exported liver-stage proteins constitute better ...

Journal: :Viruses 2023

Conventional serum antibody titer, which expresses level, does not provide antigen binding avidity of the variable region antibody, is essential for defense response to infection. Here, we quantified anti-SARS-CoV-2 receptor-binding domain (RBD) by competitive binding-inhibition activity (IC50) between SARS-CoV-2 S1 immobilized on DCP microarray and various RBD doses added expressed as 1/IC50 n...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1988
J M Burns T M Daly A B Vaidya C A Long

The 230-kDa merozoite antigen of the murine malarial parasite Plasmodium yoelii provides a potential model system for the development of a protective erythrocytic stage vaccine. To characterize this antigen at the molecular level, isolated P. yoelii 17XL DNA was used to construct a genomic library in the expression vector lambda gt11. A monoclonal antibody, mAb 302, which passively protected mi...

Journal: :The Journal of Experimental Medicine 1952
Rebecca C. Lancefield Gertrude E. Perlmann

A group A, type 28 protein antigen, resistant to tryptic digestion and previously considered to be a type-specific substance, was purified and its chemical and immunological properties studied. This protein lacks the characteristic properties of a type-specific M antigen since it is apparently unrelated to virulence and does not induce the formation of protective antibodies although precipitins...

Journal: :Clinical and vaccine immunology : CVI 2015
Xiangyang Chi Jianmin Li Weicen Liu Xiaolin Wang Kexin Yin Ju Liu Xiaodong Zai Liangliang Li Xiaohong Song Jun Zhang Xiaopeng Zhang Ying Yin Ling Fu Junjie Xu Changming Yu Wei Chen

The anthrax protective antigen (PA) is the central component of the three-part anthrax toxin, and it is the primary immunogenic component in the approved AVA anthrax vaccine and the "next-generation" recombinant PA (rPA) anthrax vaccines. Animal models have indicated that PA-specific antibodies (AB) are sufficient to protect against infection with Bacillus anthracis. In this study, we investiga...

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