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Complement Receptors and Their Role in Leukocyte Recruitment and Phagocytosis

open access: yesFrontiers in Cell and Developmental Biology, 2021
The complement system is deeply embedded in our physiology and immunity. Complement activation generates a multitude of molecules that converge simultaneously on the opsonization of a target for phagocytosis and activation of the immune system via ...
Sofie Vandendriessche   +3 more
doaj   +2 more sources

New insights for C5a and C5a receptors in sepsis [PDF]

open access: yesFrontiers in Immunology, 2012
The complement system plays a central role in inflammation and immunity. Among the complement activation products, C5a is one of the most potent inflammatory peptides with a broad spectrum of functions.
Hongwei eGao, Chunguang eYan
doaj   +4 more sources

Structural Immunology of Complement Receptors 3 and 4

open access: yesFrontiers in Immunology, 2018
Complement receptors (CR) 3 and 4 belong to the family of beta-2 (CD18) integrins. CR3 and CR4 are often co-expressed in the myeloid subsets of leukocytes, but they are also found in NK cells and activated T and B lymphocytes.
Thomas Vorup-Jensen   +2 more
doaj   +2 more sources

Structural biology of complement receptors

open access: yesFrontiers in Immunology, 2023
The complement system plays crucial roles in a wide breadth of immune and inflammatory processes and is frequently cited as an etiological or aggravating factor in many human diseases, from asthma to cancer.
Jorge Santos-López   +4 more
doaj   +3 more sources

The Complement Receptors C3aR and C5aR Are a New Class of Immune Checkpoint Receptor in Cancer Immunotherapy

open access: yesFrontiers in Immunology, 2019
Cancer immunotherapy has made remarkable clinical advances in recent years. Antibodies targeting the immune checkpoint receptors PD-1 and CTLA-4 and adoptive cell therapy (ACT) based on ex vivo expanded peripheral CTLs, tumor infiltrating lymphocytes ...
Yu Wang, Hui Zhang, You-Wen He
doaj   +2 more sources

Intracellular C3 regulates the immune response to infection via NF-κB signaling [PDF]

open access: yesCellular and Molecular Life Sciences
Complement factor C3 is one of the most abundant proteins in the bloodstream and a central part of the complement system. Upon activation, C3 facilitates bacterial recognition and clearance in the extracellular environment.
Katarzyna Kuska   +8 more
doaj   +2 more sources

Role of the complement system in the tumor microenvironment

open access: yesCancer 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   +4 more
doaj   +2 more sources

Biomimetic carbon nanopolymers ANM-NPs act on mannose receptors and complement receptors to promote tumor antigen presentation [PDF]

open access: yesJournal for ImmunoTherapy of Cancer
Background Enhancing immunogenicity and antigen-presentation efficiency is critical for tumor vaccine development. While yeast-surface glycoprotein side chains can improve antigen presentation, their ability to deliver tumor antigens remains limited ...
Lei Zhang   +11 more
doaj   +2 more sources

Complement Evasion Strategies of Viruses: An Overview

open access: yesFrontiers in Microbiology, 2017
Being a major first line of immune defense, the complement system keeps a constant vigil against viruses. Its ability to recognize large panoply of viruses and virus-infected cells, and trigger the effector pathways, results in neutralization of viruses ...
Palak Agrawal   +4 more
doaj   +2 more sources

An Immunoregulatory Role for Complement Receptors in Murine Models of Breast Cancer

open access: yesAntibodies, 2021
The complement system has demonstrated roles in regulating tumor growth, although these may differ between tumor types. The current study used two murine breast cancer models (EMT6 and 4T1) to investigate whether pharmacological targeting of receptors ...
Fazrena Nadia Md Akhir   +11 more
doaj   +1 more source

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