Publications related to Complement system

Clinically compliant cryopreservation of differentiated retinal pigment epithelial cells

Gioele La Manno, Alex Russell Lederer, Cheng Zhao

Background aims: Age-related macular degeneration (AMD) is the most common cause of blindness in elderly patients within developed countries, affecting more than 190 million worldwide. In AMD, the retinal pigment epithelial (RPE) cell layer progressively d ...

Elsevier Sci Ltd2024

A Baseline Cellular Antiviral State Is Maintained by cGAS and Its Most Frequent Naturally Occurring Variant rs610913

Jacques Fellay, Christian Axel Wandall Thorball, Shuting Xu

Upon recognition of aberrantly located DNA, the innate immune sensor cyclic GMP-AMP synthase (cGAS) activates stimulator of IFN genes (STING)/IFN regulatory factor (IRF)3-driven antiviral responses. In this study, we characterized the ability of a specific ...

American Association of Immunologists ; Oxford University Press2022

Follicular regulatory helper T cells control the response of regulatory B cells to a high-cholesterol diet

Nikolaos Stergiopoulos

Aims B cell functions in the process of atherogenesis have been investigated but several aspects remain to be clarified. ...

OXFORD UNIV PRESS2021

Immune serum-activated human macrophages coordinate with eosinophils to immobilize Ascaris suum larvae

Nicola Harris, Beatrice Volpe, Julia Esser-von Bieren, Tiffany Babette Angélique Bouchery, Kathleen Shah

Helminth infection represents a major health problem causing approximately 5 million disability-adjusted life years worldwide. Concerns that repeated anti-helminthic treatment may lead to drug resistance render it important that vaccines are developed but ...

WILEY2020

Patchy Amphiphilic Dendrimers Bind Adenovirus and Control Its Host Interactions and in Vivo Distribution

Francesco Stellacci, Weina Liu

The surface of proteins is heterogeneous with sophisticated but precise hydrophobic and hydrophilic patches, which is essential for their diverse biological functions. To emulate such distinct surface patterns on macromolecules, we used rigid spherical syn ...

2019

Single-molecule kinetics of pore assembly by the membrane attack complex

Georg Fantner, Adrian Pascal Nievergelt

The membrane attack complex (MAC) is a hetero-oligomeric protein assembly that kills pathogens by perforating their cell envelopes. The MAC is formed by sequential assembly of soluble complement proteins C5b, C6, C7, C8 and C9, but little is known about th ...

Springer2019

A fish intestinal barrier model to assess the interaction with chemicals in vitro

Hannah Inka Schug

The intestinal epithelium acts as vital gate keeper between the fish and its surrounding environment. A single layer of connected epithelial cells forms a selective barrier, which, among other essential functions, is important for nutrient uptake and defen ...

EPFL2019

Optofluidic nanoplasmonic biosensor for label-free live cell analysis in real time

Hatice Altug, Xiaokang Li, Alexander Belushkin, Filiz Yesilköy, Maria Soler Aznar

Cell signaling activities play a critical role in physiological and disease processes. The analysis of the tumor microenvironment or the immune system activation is nowadays providing valuable insights towards disease understanding and novel therapies deve ...

2018

Role of myeloid cells in mediating protection against parasitic helminth larvae

Beatrice Volpe

Helminth infections affect around one fourth of the world population living in the poorest regions of our planet. Helminths mainly cause debilitating chronic effects on health, development and nutritional status of infected people. The development of a vac ...

EPFL2017

Antibody-Mediated Trapping of Helminth Larvae Requires CD11b and Fc gamma Receptor I

Arne Seitz, Romain Guiet, Duncan-Bruce Sutherland, Nicola Harris, Benjamin John Marsland, Beatrice Volpe, Julia Esser-von Bieren, Manuel Kulagin

Infections with intestinal helminths severely impact on human and veterinary health, particularly through the damage that these large parasites inflict when migrating through host tissues. Host immunity often targets the motility of tissue-migrating helmin ...

American Association of Immunologists ; Oxford University Press2015

Arranged Sevenfold: Structural Insights into the C-Terminal Oligomerization Domain of Human C4b-Binding Protein

Matteo Dal Peraro, Matteo Thomas Degiacomi

The complement system as a major part of innate immunity is the first line of defense against invading microorganisms. Orchestrated by more than 60 proteins, its major task is to discriminate between host cells and pathogens and to initiate immune response ...

Academic Press Ltd- Elsevier Science Ltd2013

Role and regulation of the melanization reaction in Drosophila immune response

Olivier Binggeli

In arthropods, the melanization reaction consists in the rapid synthesis of melanin at the site of infection and injury. A key enzyme in the melanization process is phenoloxidase (PO), which catalyzes the oxidation of phenols to quinones that subsequently ...

EPFL2013

dRYBP Contributes to the Negative Regulation of the Drosophila Imd Pathway

Bruno Lemaitre

The Drosophila humoral innate immune response fights infection by producing antimicrobial peptides (AMPs) through the microbe-specific activation of the Toll or the Imd signaling pathway. Upon systemic infection, the production of AMPs is both positively a ...

Public Library of Science2013

Dynamic Persistence of Antibiotic-Stressed Mycobacteria

John McKinney, Neeraj Dhar, François Signorino-Gelo, Katrin Esther Schneider

Exposure of an isogenic bacterial population to a cidal antibiotic typically fails to eliminate a small fraction of refractory cells. Historically, fractional killing has been attributed to infrequently dividing or nondividing "persisters." Using microflui ...

American Association for the Advancement of Science2013

Nanoparticles for immunotherapy

Jeffrey Alan Hubbell, Melody Swartz, Sai Reddy

Nanoparticles that activate complement in the absence of biological molecules are described. The nanoparticles are shown to specifically target antigen presenting cells in specifically in lymph nodes, without the use of a biological molecule for targeting. ...

2011

PAR2 absence completely rescues inflammation and ichthyosis caused by altered CAP1/Prss8 expression in mouse skin

Friedrich Beermann, Simona Frateschi, Anne Wilson, Roch-Philippe Charles

Altered serine protease activity is associated with skin disorders in humans and in mice. The serine protease channel-activating protease-1 (CAP1; also termed protease serine S1 family member 8 (Prss8)) is important for epidermal homeostasis and is thus in ...

Nature Research2011

Nanoparticle conjugation and pulmonary delivery enhance the protective efficacy of Ag85B and CpG against tuberculosis

John McKinney, Neeraj Dhar, Jeffrey Alan Hubbell, Eleonora Simeoni, Melody Swartz, Cyntia De Piano, Alexandre de Titta, Marie Ballester, Miriella Carmela Pasquier

Vaccines that drive robust T-cell immunity against Mycobacterium tuberculosis (Mtb) are needed both for prophylactic and therapeutic purposes. We have recently developed a synthetic vaccine delivery platform with Pluronic-stabilized polypropylene sulfide n ...

2011

Engineering Erythrocyte Affinity for Improved Pharmacokinetics and Immune Tolerogenesis

Stephane Kontos

The clinical success of recombinant protein therapeutics in the treatment of disease is a hallmark of modern medical research, yet there remain numerous unaddressed issues regarding their delivery and immunogenicity. Regardless of in vivo efficacy, the bio ...

EPFL2011

Nanoparticles for immunotherapy

Jeffrey Alan Hubbell, Eleonora Simeoni, Melody Swartz, Conlin O'Neil, Sai Reddy

Nanoparticles that activate complement in the absence of biological molecules are described. The nanoparticles are shown to specifically target antigen presenting cells in specifically in lymph nodes, without the use of a biological molecule for targeting. ...

2010

Biophysical Regulation of Lymphatic Vessel Function : Flow as a Mediator of Immune Cell and Fluid Transport

Dimana Miteva

Lymphatic capillaries collect interstitial fluid and dendritic cells from the periphery and deliver them to the lymph nodes for immune surveillance and tolerance maintenance. Upon injury and inflammation, lymphatic drainage can increase rapidly, and thus t ...

EPFL2010