The ins and outs of antigen uptake in B cells

AN McShane, D Malinova - Frontiers in immunology, 2022 - frontiersin.org
A review of our current knowledge of B cell antigen uptake mechanisms, the relevance of
these processes to pathology, and outstanding questions in the field. Specific antigens …

[HTML][HTML] MYH9: A key protein involved in tumor progression and virus-related diseases

Q Liu, C Cheng, J Huang, W Yan, Y Wen, Z Liu… - Biomedicine & …, 2024 - Elsevier
The myosin heavy chain 9 (MYH9) gene encodes the heavy chain of non-muscle myosin IIA
(NMIIA), which belongs to the myosin II subfamily of actin-based molecular motors. Previous …

A B-cell actomyosin arc network couples integrin co-stimulation to mechanical force-dependent immune synapse formation

JC Wang, YI Yim, X Wu, V Jaumouille, A Cameron… - Elife, 2022 - elifesciences.org
B-cell activation and immune synapse (IS) formation with membrane-bound antigens are
actin-dependent processes that scale positively with the strength of antigen-induced signals …

Arp2/3 complex-driven spatial patterning of the BCR enhances immune synapse formation, BCR signaling and B cell activation

M Bolger-Munro, K Choi, JM Scurll, L Abraham… - Elife, 2019 - elifesciences.org
When B cells encounter antigens on the surface of an antigen-presenting cell (APC), B cell
receptors (BCRs) are gathered into microclusters that recruit signaling enzymes. These …

Actomyosin-driven force patterning controls endocytosis at the immune synapse

A Kumari, J Pineau, PJ Sáez, M Maurin… - Nature …, 2019 - nature.com
An important channel of cell-to-cell communication is direct contact. The immune synapse is
a paradigmatic example of such type of interaction: it forms upon engagement of antigen …

Extracellular matrix rigidity modulates physical properties of subcapsular sinus macrophage-B cell immune synapses

M Iliopoulou, AT Bajur, HCW McArthur, M Gabai… - Biophysical …, 2024 - cell.com
Subcapsular sinus macrophages (SSMs) play a key role in immune defense by forming
immunological barriers that control the transport of antigens from lymph into lymph node …

Myosin II synergizes with F-actin to promote DNGR-1-dependent cross-presentation of dead cell-associated antigens

O Schulz, P Hanč, JP Böttcher, R Hoogeboom… - Cell reports, 2018 - cell.com
Conventional type 1 DCs (cDC1s) excel at cross-presentation of dead cell-associated
antigens partly because they express DNGR-1, a receptor that recognizes exposed actin …

B cells extract antigens at Arp2/3-generated actin foci interspersed with linear filaments

SI Roper, L Wasim, D Malinova, M Way, S Cox, P Tolar - Elife, 2019 - elifesciences.org
Antibody production depends on B cell internalization and presentation of antigens to helper
T cells. To acquire antigens displayed by antigen-presenting cells, B cells form immune …

Chemokines and other mediators in the development and functional organization of lymph nodes

N Eckert, M Permanyer, K Yu, K Werth… - Immunological …, 2019 - Wiley Online Library
Secondary lymphoid organs like lymph nodes (LN s) are the main inductive sites for
adaptive immune responses. Lymphocytes are constantly entering LN s, scanning the …

Molecular tug of war reveals adaptive potential of an immune cell repertoire

H Jiang, S Wang - Physical Review X, 2023 - APS
The adaptive immune system constantly remodels its lymphocyte repertoire for better
protection against future pathogens. Its ability to improve antigen recognition on the fly relies …