Results 41 to 50 of about 19,086,766 (295)

Factor H Family Proteins in Complement Evasion of Microorganisms

Frontiers in Immunology, 2017
Human-pathogenic microbes possess various means to avoid destruction by our immune system. These include interactions with the host complement system that may facilitate pathogen entry into cells and tissues, expression of molecules that defuse the ...
Mihály Józsi
doaj   +1 more source

Structure-Guided Engineering of a Complement Component C3-Binding Nanobody Improves Specificity and Adds Cofactor Activity

Frontiers in Immunology, 2022
The complement system is a part of the innate immune system, where it labels intruding pathogens as well as dying host cells for clearance. If complement regulation is compromised, the system may contribute to pathogenesis.
Henrik Pedersen, Rasmus Kjeldsen Jensen, Annette Gudmann Hansen, Steen Vang Petersen, Steffen Thiel, Nick Stub Laursen, Nick Stub Laursen, Gregers Rom Andersen   +7 more
doaj   +1 more source

Dynamic control of the complement system by modulated expression of regulatory proteins [PDF]

Laboratory Investigation, 2011
The complement system serves many biological functions, including the eradication of invasive pathogens and the removal of damaged cells and immune-complexes. Uncontrolled complement activation causes injury to host cells, however, so adequate regulation of the system is essential.
Joshua M, Thurman, Brandon, Renner
openaire   +2 more sources

Backbone dynamics of complement control protein (CCP) modules reveals mobility in binding surfaces [PDF]

, 2004
The regulators of complement activation (RCA) are critical to health and disease because their role is to ensure that a complement-mediated immune response to infection is proportionate and targeted.
Krystyna Bromek, Uhrin, D, O'Leary, JM, Xuefeng Wang, Stanislava Uhrinova, Joanne M. O'Leary, Black, GM, Wang, XF, Malgorzata Krych, John P. Atkinson, Uhrinova, S, Dusan Uhrin, Atkinson, JP, Gordon M. Black, Krych, M, Schmitz, C, Paul N. Barlow, Bromek, K, Barlow, PN, Christian Schmitz   +19 more
core   +1 more source

Borrelia recurrentis employs a novel multifunctional surface protein with anti-complement, anti-opsonic and invasive potential to escape innate immunity [PDF]

, 2009
Borrelia recurrentis, the etiologic agent of louse-borne relapsing fever in humans, has evolved strategies, including antigenic variation, to evade immune defence, thereby causing severe diseases with high mortality rates.
Schott, Melanie, Sonja Grosskinsky, Markus M. Simon, Grosskinsky, Sonja, Cutler, Sally J., Schott, M., Simon, M., Kraiczy, P., Zipfel, Peter F., Grosskinsky, S., Peter Kraiczy, Sally J Cutler, Peter F Zipfel, Peter F. Zipfel, Brenner, Christiane, Wallich, R., Kraiczy, Peter, Brenner, C., Christiane Brenner, Simon, Markus M., Markus M Simon, Wallich, Reinhard, Sally J. Cutler, Reinhard Wallich, Cutler, S., Zipfel, P., Melanie Schott   +26 more
core   +2 more sources

Hijacking Complement Regulatory Proteins for Bacterial Immune Evasion

Frontiers in Microbiology, 2016
The human complement system plays an important role in the defense against invading pathogens, inflammation and homeostasis. Invading microbes, such as bacteria, directly activate the complement system resulting in the formation of chemoattractants and ...
Elise Sofie Hovingh, Elise Sofie Hovingh, Bryan van den Broek, Ilse Jongerius, Ilse Jongerius   +4 more
doaj   +1 more source

Lectin pathway proteins of the complement system in normotensive pregnancy and pre‐eclampsia [PDF]

American Journal of Reproductive Immunology, 2019
ProblemThe lectin pathway of the complement system may be involved in the pathogenesis of pre‐eclampsia. We aimed to investigate changes in serum concentrations of a broad range of lectin pathway proteins during normal pregnancy and their association with pre‐eclampsia, placental infarctions and intrauterine growth restriction (IUGR).Method of studyWe ...
Julie Brogaard Larsen, Anita Sylvest Andersen, Christine Lodberg Hvas, Steffen Thiel, Michael Rud Lassen, Anne‐Mette Hvas, Anette Tarp Hansen   +6 more
openaire   +3 more sources

Role of the complement system in the tumor microenvironment

Cancer Cell International, 2019
The complement system has traditionally been considered a component of innate immunity against invading pathogens and “nonself” cells. Recent studies have demonstrated the immunoregulatory functions of complement activation in the tumor microenvironment (
Ronghua Zhang, Qiaofei Liu, Tong Li, Quan Liao, Yupei Zhao   +4 more
doaj   +1 more source

Engineering novel complement activity into a pulmonary surfactant protein [PDF]

, 2010
Complement neutralizes invading pathogens, stimulates inflammatory and adaptive immune responses, and targets non- or altered-self structures for clearance.
Toth, Julia, Wilhelm J. Schwaeble, Christopher Furze, Russell Wallis, Keeble, A. H., Julia Toth, Keeble, Anthony H., Girija, Umakhanth Venkatraman, Wallis, Russell, Mitchell, D. A., Daniel A. Mitchell, Toth, J., Schwaeble, W. J., Schwaeble, Wilhelm J., Anthony H. Keeble, Furze, C., Umakhanth Venkatraman Girija, Furze, Christopher M., Mitchell, Daniel A., Wallis, R., Venkatraman Girija, U.   +20 more
core   +1 more source

Complement proteins in unexpected places: why we should be excited, not concerned! [version 1; peer review: 2 approved]

F1000Research, 2020
The complement system consists of more than 30 plasma as well as cell surface proteins that together constitute a major arm of the immune system. The long-held belief is that most of the complement components are synthesized by hepatocytes in the liver ...
Berhane Ghebrehiwet
doaj   +1 more source