Results 41 to 50 of about 342,290 (286)

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Metabolic Targets for Improvement of Allogeneic Hematopoietic Stem Cell Transplantation and Graft-vs.-Host Disease

Frontiers in Immunology, 2019
Utilization of the adaptive immune system against malignancies, both by immune-based therapies to activate T cells in vivo to attack cancer and by T-cell therapies to transfer effector cytolytic T lymphocytes (CTL) to the cancer patient, represent major ...
Natalia M. Tijaro-Ovalle, Natalia M. Tijaro-Ovalle, Theodoros Karantanos, Theodoros Karantanos, Hong-Tao Wang, Hong-Tao Wang, Vassiliki A. Boussiotis, Vassiliki A. Boussiotis   +7 more
doaj   +1 more source

Engineered red blood cells (activating antigen carriers) drive potent T cell responses and tumor regression in mice

Frontiers in Immunology, 2022
Activation of T cell responses is essential for effective tumor clearance; however, inducing targeted, potent antigen presentation to stimulate T cell responses remains challenging. We generated Activating Antigen Carriers (AACs) by engineering red blood
Katarina Blagovic, Carolyne K. Smith, Amritha Ramakrishnan, Lindsay Moore, David R. Soto, Zachary Thompson, Adam P. Stockmann, Sonia Kruszelnicki, Akshi Thakkar, Jason Murray, Sebastian Torres, Bersabel Wondimagegnhu, Roslyn Yi, Maisam Dadgar, Abdul M. Paracha, Claire Page, Louise Clear, Omer A. Chaudhry, Melissa Myint, Devin T. Bridgen, Jonathan B. Gilbert, Katherine J. Seidl, Armon Sharei, Scott Loughhead, Howard Bernstein, Defne Yarar   +25 more
doaj   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

FEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López, Özge Yilmaz Ardicli, Mübeccel Akdis   +2 more
wiley   +1 more source

Development of a new protocol for 2-day generation of mature dendritic cells from human monocytes

Biological Procedures Online, 2003
We developed a new 2-day protocol for the generation of dendritic cells (DCs) from human monocytes in vitro. First, we demonstrated that 24 hours of culture with GM-CSF and IL-4 are sufficient to generate immature DCs capable of antigen uptake.
Obermaier Bianca, Dauer Marc, Herten Jan, Schad Katharina, Endres Stefan, Eigler Andreas   +5 more
doaj   +1 more source

Antigen Presentation by Vascular Cells [PDF]

Frontiers in Immunology, 2017
Antigen presentation by cells of the vessel wall may initiate rapid and localized memory immune responses in peripheral tissues. Peptide antigens displayed on major histocompatibility complex (MHC) molecules on the surface of endothelial cells (ECs) can be recognized by T cell receptors on circulating effector memory T cells (TEM), triggering both ...
Jordan S. Pober, Jonathan Merola, Rebecca Liu, Thomas D. Manes   +3 more
openaire   +3 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Antigen presentation to B cells [PDF]

F1000 Biology Reports, 2010
B cells are capable of mounting responses to a bewildering range of potentially pathogenic antigens through the production of high-affinity antibodies and the establishment of immunological memory. Thus, regulated B-cell activation is critical for protection against a variety of bacterial and viral infections, as well as cancers.
Harwood, Naomi E, Batista, Facundo D
openaire   +2 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Activation and degranulation of CAR-T cells using engineered antigen-presenting cell surfaces.

PLoS ONE, 2020
Adoptive cell transfer of Chimeric Antigen Receptor (CAR)-T cells showed promising results in patients with B cell malignancies. However, the detailed mechanism of CAR-T cell interaction with the target tumor cells is still not well understood. This work
Qassim Dirar, Teal Russell, Lumei Liu, Sarah Ahn, Gianpietro Dotti, Shyam Aravamudhan, Laura Conforti, Yeoheung Yun   +7 more
doaj   +1 more source