Results 1 to 10 of about 186,921 (280)

Trichinella spiralis Paramyosin Binds Human Complement C1q and Inhibits Classical Complement Activation. [PDF]

PLoS Neglected Tropical Diseases, 2015
BACKGROUND:Trichinella spiralis expresses paramyosin (Ts-Pmy) as a defense mechanism. Ts-Pmy is a functional protein with binding activity to human complement C8 and C9 and thus plays a role in evading the attack of the host's immune system.
Ran Sun, Xi Zhao, Zixia Wang, Jing Yang, Limei Zhao, Bin Zhan, Xinping Zhu   +6 more
doaj   +5 more sources

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

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   +4 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   +3 more sources

Hypoxic Processes Induce Complement Activation via Classical Pathway in Porcine Neuroretinas [PDF]

Cells, 2021
Considering the fact that many retinal diseases are yet to be cured, the pathomechanisms of these multifactorial diseases need to be investigated in more detail.
Ana M. Mueller-Buehl, Torsten Buehner, Christiane Pfarrer, Leonie Deppe, Laura Peters, Burkhard H. Dick, Stephanie C. Joachim   +6 more
doaj   +4 more sources

An Excretory Protein of Echinococcus multilocularis Inhibits Complement Classical Pathway Activation

Infection and Drug Resistance, 2022
Yiwen Qiu, Shu Shen, Yi Yang, Wentao Wang Department of Liver Surgery and Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, People’s Republic of ChinaCorrespondence: Wentao Wang, Department of Liver Surgery and Liver ...
Qiu Y, Shen S, Yang Y, Wang W
doaj   +4 more sources

Beyond Binding: The Outcomes of Antibody-Dependent Complement Activation in Human Malaria

Frontiers in Immunology, 2021
Antibody immunity against malaria is effective but non-sterile. In addition to antibody-mediated inhibition, neutralisation or opsonisation of malaria parasites, antibody-mediated complement activation is also important in defense against infection ...
Dilini Rathnayake, Elizabeth H. Aitken, Stephen J. Rogerson   +2 more
doaj   +1 more source

Functional Analysis of Two Divergent C4 Isotypes in the Classical and Lectin Pathways of Complement Activation in the Common Carp (Cyprinus carpio)

Journal of Marine Science and Engineering, 2023
In the evolution of the complement system, a major humoral innate immune factor, the existence of multiple isotypes of the complement components is considered as a key strategy to enhance innate immune defense. Complement C4 is also diversified in a wide
Rosli Nehlah, Akira Yamamoto, Takahiro Nagasawa, Tomonori Somamoto, Miki Nakao   +4 more
doaj   +1 more source

Classical pathway complement activation on human endothelial cells [PDF]

Molecular Immunology, 2007
Endothelial cells regulate vascular integrity and express complement binding proteins including gC1qR/p33 (gC1qR), which recognize C1q, a subunit of the first component of the classical complement pathway. Experiments were performed to investigate classical complement pathway activation on resting endothelial cells and endothelial cells exposed to ...
Wei, Yin, Berhane, Ghebrehiwet, Babette, Weksler, Ellinor I, Peerschke   +3 more
openaire   +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   +1 more source

Deficient Classical Complement Pathway Activity in Newborn Sera [PDF]

Pediatric Research, 1983
Summary: The bactericidal activity of 20 maternal-neonatal paired sera was assessed employing a clinical type la, group B streptococcal isolate, strain 515, known to be opsonized by the classical complement pathway in a non-antibody dependent fashion.
M S, Edwards, G J, Buffone, P A, Fuselier, J L, Weeks, C J, Baker   +4 more
openaire   +2 more sources