Results 51 to 60 of about 109,700 (295)

The Fab region of IgG impairs the internalization pathway of FcRn upon Fc engagement

Nature Communications, 2022
Disrupting the association between the Immunoglobulin G constant fragment (Fc) and the neonatal Fc receptor (FcRn) by engineered antibodies is a promising strategy to reduce autoantibody levels in autoimmune diseases.
Maximilian Brinkhaus, Erwin Pannecoucke, Elvera J. van der Kooi, Arthur E. H. Bentlage, Ninotska I. L. Derksen, Julie Andries, Bianca Balbino, Magdalena Sips, Peter Ulrichts, Peter Verheesen, Hans de Haard, Theo Rispens, Savvas N. Savvides, Gestur Vidarsson   +13 more
doaj   +1 more source

Fc receptor engagement of HIV-1 Env-specific antibodies in mothers and infants predicts reduced vertical transmission

Frontiers in Immunology, 2022
IntroductionInfants acquire maternal antibodies by Fc receptor transcytosis across the placenta during pregnancy. Fc receptors are expressed on immune cells and are important for activation of effector cell functions.MethodsIn this study, we evaluated Fc
Brittani M. Barrows, Brittani M. Barrows, Brittani M. Barrows, Shelly J. Krebs, Shelly J. Krebs, Ningbo Jian, Ningbo Jian, Michelle Zemil, Michelle Zemil, Bonnie M. Slike, Bonnie M. Slike, Vincent Dussupt, Vincent Dussupt, Ursula Tran, Ursula Tran, Letzibeth Mendez-Rivera, Letzibeth Mendez-Rivera, David Chang, David Chang, Anne Marie O’Sullivan, Anne Marie O’Sullivan, Brendan Mann, Brendan Mann, Eric Sanders-Buell, Eric Sanders-Buell, Zhanna Shubin, Zhanna Shubin, Matt Creegan, Matt Creegan, Dominic Paquin-Proulx, Dominic Paquin-Proulx, Philip Ehrenberg, Philip Ehrenberg, Agnes Laurence-Chenine, Agnes Laurence-Chenine, Kriengkrai Srithanaviboonchai, Rasmi Thomas, Michael A. Eller, Michael A. Eller, Guido Ferrari, Merlin Robb, Merlin Robb, Venigalla Rao, Sodsai Tovanabutra, Sodsai Tovanabutra, Victoria R. Polonis, Lindsay Wieczorek, Lindsay Wieczorek   +47 more
doaj   +1 more source

Neonatal Fc receptor is a functional receptor for human astrovirus

bioRxiv, 2022
SummaryHuman astrovirus (HAstV) is a global cause of gastroenteritis in infants, the elderly, and immunocompromised people. However, its infection mechanism is not fully understood, with its functional receptor not yet discovered. Here, we identify neonatal Fc receptor (FcRn) as a functional receptor for HAstV (mamastrovirus 1) using genome-wide CRISPR-
K. Haga, Reiko Takai-Todaka, Akiko Kato, A. Nakanishi, Kazuhiko Katayama   +4 more
semanticscholar   +2 more sources

In vivo pharmacokinetic enhancement of monomeric Fc and monovalent bispecific designs through structural guidance

Communications Biology, 2021
Lu Shan et al. present a structure-guided approach to engineer a monovalent form of the fragment crystallizable (Fc) region of an IgG4 antibody to adapt multiple versions of half-life extension modifications and bispecific targeting.
Lu Shan, Nydia Van Dyk, Nantaporn Haskins, Kimberly M. Cook, Kim L. Rosenthal, Ronit Mazor, Sonia Dragulin-Otto, Yu Jiang, Herren Wu, William F. Dall’Acqua, Martin J. Borrok, Melissa M. Damschroder, Vaheh Oganesyan   +12 more
doaj   +1 more source

FcRN receptor antagonists in the management of myasthenia gravis

Frontiers in Neurology, 2023
Myasthenia gravis (MG) is an autoimmune disorder characterized by autoantibodies specifically directed against proteins located within the postsynaptic membrane of the neuromuscular junction.
Vinaya Bhandari, Vera Bril
doaj   +1 more source

B-1 Cell Heterogeneity and the Regulation of Natural and Antigen-Induced IgM Production. [PDF]

, 2016
A small subset of B cells, termed B-1 cells, with developmental origins, phenotypes, and functions that are distinct from those of conventional B cells exist in mice. It contributes the vast majority of spontaneously produced "natural" IgM.
Alugupalli, Alugupalli, Ansel, Avrech, Barber, Baumgarth, Baumgarth, Baumgarth, Baumgarth, Ben-Hur, Berland, Boes, Boes, Briles, Cazac, Chace, Chen, Choi, Choi, Cole, Colombo, Cosenza, Cunningham, Dexter, Duber, Ehrenstein, Elvington, Flajnik, Forster, Fung, Gil-Cruz, Godin, Gordon, Ha, Haas, Hardy, Hardy, Hayakawa, Hayakawa, Holodick, Holodick, Holodick, Hooijkaas, Kantor, Kantor, Kawahara, Kearney, Kin, Kobayashi, Kretschmer, Kroese, Kroese, Lalor, Lalor, Lalor, Mercolino, Montecino-Rodriguez, Montecino-Rodriguez, Moon, Morris, Murakami, Nguyen, Nisitani, Ohdan, Okabe, Ouchida, Patel, Perdiguero, Rahyab, Reynolds, Sigal, Stoermann, Tominaga, Tornberg, van der Pol, Vas, Vaux, Waffarn, Wardemann, Watanabe, Yang, Yang, Yoshida, Yoshimoto, Yuan, Zhou   +85 more
core   +4 more sources

Electron tomography of late stages of FcRn-mediated antibody transcytosis in neonatal rat small intestine [PDF]

, 2012
The neonatal Fc receptor (FcRn) transports maternal immunoglobulin (IgG) across epithelia to confer passive immunity to mammalian young. In newborn rodents, FcRn transcytoses IgG from ingested milk across the intestinal epithelium for release into the ...
Bjorkman, Pamela J., Huey-Tubman, Kathryn E., Ladinsky, Mark S.   +2 more
core   +2 more sources

Structure of FcRY, an avian immunoglobulin receptor related to mammalian mannose receptors, and its complex with IgY [PDF]

, 2011
Fc receptors transport maternal antibodies across epithelial cell barriers to passively immunize newborns. FcRY, the functional counterpart of mammalian FcRn (a major histocompatibility complex homolog), transfers IgY across the avian yolk sac, and ...
BENNETT, Bottcher, Burmeister, Dube, East, Kowalczyk, Leach, Linden, Llorca, Martin, Mayer, Mertens, P. J. Bjorkman, Rivera-Calzada, Roopenian, Simister, Simister, Taylor, Tressler, Vaughn, Western, Woof, Y. He   +22 more
core   +3 more sources

The immune response to malaria in utero. [PDF]

, 2020
Malaria causes tremendous early childhood morbidity and mortality, providing an urgent impetus for the development of a vaccine that is effective in neonates.
Feeney, Margaret E
core   +1 more source

Neonatal Fc Receptor Mediates Internalization of Fc in Transfected Human Endothelial Cells [PDF]

Molecular Biology of the Cell, 2008
The neonatal Fc receptor, FcRn mediates an endocytic salvage pathway that prevents degradation of IgG, thus contributing to the homeostasis of circulating IgG. Based on the low affinity of IgG for FcRn at neutral pH, internalization of IgG by endothelial cells is generally believed to occur via fluid-phase endocytosis.
Nancy A, Goebl, Clifford M, Babbey, Amita, Datta-Mannan, Derrick R, Witcher, Victor J, Wroblewski, Kenneth W, Dunn   +5 more
openaire   +2 more sources