نتایج جستجو برای: adaptive immunity

تعداد نتایج: 274580  

Journal: :Immunology and Cell Biology 2021

Programming of gene expression is essential for cellular differentiation and function. This accomplished through a complex system epigenetic regulatory mechanisms that include post-translational modifications to the histones pack order DNA in nucleus. Among these modifications, mono-, di-, tri-methylation histone H3 at lysine 79 (H3K79me) are mediated by methyltransferase known as Disruptor tel...

Journal: :Journal of immunology 2014
Lv-yun Zhu Ai-fu Lin Tong Shao Li Nie Wei-ren Dong Li-xin Xiang Jian-zhong Shao

The long-held paradigm that B cells cannot uptake nonspecific particulate Ags for the initiation of primary adaptive immunity has been challenged by the recent discovery that teleost B cells have potent phagocytic and microbicidal abilities. This discovery provides preliminary clues that primitive B cells might act as initiating APCs in priming adaptive immunity. In this study, zebrafish B cell...

Journal: :novelty in biomedicine 0
mehrzad sadredinamin department of microbiology, school of medicine, shahid beheshti university of medical sciences,p. o. box 1985717443, tehran, iran. faramarz mehrnejad department of life science engineering, faculty of newsciences & technologies, university of tehran,p.o. box 14395-1561, tehran, iran. peyman hosseini department of microbiology, qazvin university of medical sciences,p.o.box: 34185-754 qazvin, iran. farahnoosh doustdar 1- department of microbiology, school of medicine, shahid beheshti university of medical sciences,p. o. box 1985717443, tehran, iran.

antimicrobial peptides (amps) are extensive group of molecules that produced by variety tissues of invertebrate, plants, and animal species which play an important role in their immunity response. amps have different classifications such as; biosynthetic machines, biological sources, biological functions, molecular properties, covalent bonding patterns, three dimensional structures, and molecul...

2013
Laurindo Ferreira da Rocha Junior Andréa Tavares Dantas Ângela Luzia Branco Pinto Duarte Moacyr Jesus Barreto de Melo Rego Ivan da Rocha Pitta Maira Galdino da Rocha Pitta

Adaptive immunity has evolved as a very powerful and highly specialized tool of host defense. Its classical protagonists are lymphocytes of the T- and B-cell lineage. Cytokines and chemokines play a key role as effector mechanisms of the adaptive immunity. Some autoimmune and inflammatory diseases are caused by disturbance of the adaptive immune system. Recent advances in understanding the path...

Journal: :Journal of virology 2015
Haifeng C Xu Jun Huang Vishal Khairnar Vikas Duhan Aleksandra A Pandyra Melanie Grusdat Prashant Shinde David R McIlwain Sathish Kumar Maney Jennifer Gommerman Max Löhning Pamela S Ohashi Tak W Mak Kathrin Pieper Heiko Sic Matthaios Speletas Hermann Eibel Carl F Ware Alexei V Tumanov Andrey A Kruglov Sergei A Nedospasov Dieter Häussinger Mike Recher Karl S Lang Philipp A Lang

UNLABELLED The B cell-activating factor (BAFF) is critical for B cell development and humoral immunity in mice and humans. While the role of BAFF in B cells has been widely described, its role in innate immunity remains unknown. Using BAFF receptor (BAFFR)-deficient mice, we characterized BAFFR-related innate and adaptive immune functions following infection with vesicular stomatitis virus (VSV...

2013
Carina Malmhäll Apostolos Bossios Margareta Sjöstrand Bo Lundbäck Jan Lötvall Madeleine Rådinger

Background We have in an epidemiological study identified a group of individuals with multiple asthma symptoms (MSA) that reflect a more severe and uncontrolled disease. An altered innate immunity and adaptive immunity, and effects of microorganisms may play a role in the development of both CRS and asthma. The innate immune system use Toll-like receptors (TLRs) to recognize microbes and activa...

Journal: :Revista brasileira de reumatologia 2010
Alexandre Wagner Silva de Souza Danilo Mesquita Júnior Júlio Antônio Pereira Araújo Tânia Tieko Takao Catelan Wilson de Melo Cruvinel Luís Eduardo Coelho Andrade Neusa Pereira da Silva

The immune system consists of an intricate network of organs, cells, and molecules responsible for maintaining the body's homeostasis and responding to aggression in general. Innate immunity operates in conjunction with adaptive immunity and is characterized by rapid response to aggression, regardless of previous stimulus, being the organism first line of defense. Its mechanisms include physica...

Journal: :Proceedings. Biological sciences 2005
I M Cattadori B Boag O N Bjørnstad S J Cornell P J Hudson

Insight into the dynamics of parasite-host relationships of higher vertebrates requires an understanding of two important features: the nature of transmission and the development of acquired immunity in the host. A dominant hypothesis proposes that acquired immunity develops with the cumulative exposure to infection, and consequently predicts a negative relationship between peak intensity of in...

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