Results 1 to 10 of about 247,050 (333)

Borrelia burgdorferi BBK32 Inhibits the Classical Pathway by Blocking Activation of the C1 Complement Complex. [PDF]

PLoS Pathogens, 2016
Pathogens that traffic in blood, lymphatics, or interstitial fluids must adopt strategies to evade innate immune defenses, notably the complement system.
Brandon L Garcia, Hui Zhi, Beau Wager, Magnus Höök, Jon T Skare   +4 more
doaj   +8 more sources

Transcriptional factor PU.1 regulates decidual C1q expression in early pregnancy in human [PDF]

Frontiers in Immunology, 2015
"Copyright: © 2015 Madhukaran, Kishore, Jamil, Teo, Choolani and Lu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY).
Choolani, M, Jamil, K, Kishore, U, Lu, J, Madhukaran, SP, Teo, BHD   +5 more
core   +11 more sources

Alpha-synuclein activates the classical complement pathway and mediates complement-dependent cell toxicity

Journal of Neuroinflammation, 2021
Background Synucleinopathies are characterized by neurodegeneration and deposition of the presynaptic protein α-synuclein in pathological protein inclusions.
Emil Gregersen, Cristine Betzer, Woojin S. Kim, Gergo Kovacs, Lasse Reimer, Glenda M. Halliday, Steffen Thiel, Poul Henning Jensen   +7 more
doaj   +2 more sources

Novel Evasion Mechanisms of the Classical Complement Pathway [PDF]

The Journal of Immunology, 2016
Abstract Complement is a network of soluble and cell surface-associated proteins that gives rise to a self-amplifying, yet tightly regulated system with fundamental roles in immune surveillance and clearance. Complement becomes activated on the surface of nonself cells by one of three initiating mechanisms known as the classical, lectin,
B. Garcia, S. Zwarthoff, S. Rooijakkers, B. Geisbrecht   +3 more
semanticscholar   +3 more sources

The classical pathway triggers pathogenic complement activation in membranous nephropathy

Nature Communications, 2023
It is generally thought that complement activation in human membranous nephropathy (MN) occurs predominantly via the lectin or alternative pathway. Here, the authors show that the classical pathway is the dominant form of complement activation in MN and ...
Larissa Seifert, Gunther Zahner, Catherine Meyer-Schwesinger, Naemi Hickstein, Silke Dehde, Sonia Wulf, Sarah M. S. Köllner, Renke Lucas, Dominik Kylies, Sarah Froembling, Stephanie Zielinski, Oliver Kretz, Anna Borodovsky, Sergey Biniaminov, Yanyan Wang, Hong Cheng, Friedrich Koch-Nolte, Peter F. Zipfel, Helmut Hopfer, Victor G. Puelles, Ulf Panzer, Tobias B. Huber, Thorsten Wiech, Nicola M. Tomas   +23 more
doaj   +2 more sources

Functional and Structural Characterization of a Potent C1q Inhibitor Targeting the Classical Pathway of the Complement System

Frontiers in Immunology, 2020
The classical pathway of complement is important for protection against pathogens and in maintaining tissue homeostasis, but excessive or aberrant activation is directly linked to numerous pathologies.
Nick S. Laursen, Dennis V. Pedersen, Heidi Gytz, Alessandra Zarantonello, Jens Magnus Bernth Jensen, Annette G. Hansen, Steffen Thiel, Gregers R. Andersen   +7 more
doaj   +2 more sources

Carbamylation of immunoglobulin abrogates activation of the classical complement pathway [PDF]

European Journal of Immunology, 2014
Post‐translational modifications of proteins significantly affect their structure and function. The carbamylation of positively charged lysine residues to form neutral homoitrulline occurs primarily under inflammatory conditions through myeloperoxidase ...
Catalin Koro, Ewa Bielecka, Anders Dahl-Knudsen, J. Enghild, C. Scavenius, J. Brun, Veronika Binder, A. Hellvard, Brith Bergum, R. Jonsson, J. Potempa, A. Blom, P. Mydel   +12 more
semanticscholar   +9 more sources

The lectin pathway of complement activation is a critical component of the innate immune response to pneumococcal infection. [PDF]

PLoS Pathogens, 2012
The complement system plays a key role in host defense against pneumococcal infection. Three different pathways, the classical, alternative and lectin pathways, mediate complement activation.
Youssif M Ali, Nicholas J Lynch, Kashif S Haleem, Teizo Fujita, Yuichi Endo, Soren Hansen, Uffe Holmskov, Kazue Takahashi, Gregory L Stahl, Thomas Dudler, Umakhanth V Girija, Russell Wallis, Aras Kadioglu, Cordula M Stover, Peter W Andrew, Wilhelm J Schwaeble   +15 more
doaj   +6 more sources

Classical Complement Pathway Activation in the Kidneys of Women With Preeclampsia [PDF]

Hypertension, 2015
A growing body of evidence suggests that complement dysregulation plays a role in the pathogenesis of preeclampsia. The kidney is one of the major organs affected in preeclampsia. Because the kidney is highly susceptible to complement activation, we hypothesized that preeclampsia is associated with renal complement activation. We performed a nationwide
J. Chua, C. Kooten, M. Zandbergen, Aletta, Buurma, J. Schutte, J. Bruijn, E. Khankin, Kitty, Bloemenkamp, S. A. Karumanchi, H. Baelde   +11 more
semanticscholar   +6 more sources

Gain-of-Function Mutations R249C and S250C in Complement C2 Protein Increase C3 Deposition in the Presence of C-Reactive Protein [PDF]

Frontiers in Immunology, 2021
The impairment of the alternative complement pathway contributes to rare kidney diseases such as atypical hemolytic uremic syndrome (aHUS) and C3 glomerulopathy (C3G).
Aleksandra Urban, Daria Kowalska, Grzegorz Stasiłojć, Alicja Kuźniewska, Anna Skrobińska, Emilia Arjona, Eugenia Castellote Alonso, María Ángeles Fenollosa Segarra, Ilse Jongerius, Ilse Jongerius, Robbert Spaapen, Simon Satchell, Marcel Thiel, Stanisław Ołdziej, Santiago Rodriguez de Córdoba, Marcin Okrój   +15 more
doaj   +4 more sources