SAMN48129522
External Id
DKFZ
INSDC center name
2025-04-24T00:00:00Z
INSDC first public
2025-05-05T15:15:21.963Z
INSDC last update
SRS24944346
INSDC secondary accession
live
INSDC status
Human
NCBI submission model
Human.1.0
NCBI submission package
SRS24944346
SRA accession
18-55
age
DKFZ/D400
biomaterial_provider
B-cells
cell_type
2024-01-15
collection_date
Infection with the Epstein-Barr virus (EBV) is a major risk factor for the development of cancer and autoimmune disorders. The virus enters the body in the pharynx, but EBV causes disease in distant organs, including the gut and the brain. Here we show, using in vitro culture and mouse infection models, that EBV-infected B cells display features of homing cells. Infected B cells undergo migration induced by paracrine CCL4 release and CCR1 activation, while CCR1 deficiency inhibits migration and, unexpectedly, proliferation of infected B cells. Furthermore, migrating EBV-infected B cells pursue CCL4-dependent diapedesis, induce ICAM-1 on endothelial cells, and disrupt the integrity of endothelial barriers. Both the migration and diapedesis are regulated by FAK, with FAK inhibition blocking growth and survival of EBV-transformed B cells, as well as their spreading to spleen and brain in an animal model in vivo. Moreover, IL-10 secreted by EBV-infected B cells attract and facilitate diapedesis of EBV-negative CD52highCD11c+ B cells, which have reported autoimmune properties. Our results thus serve mechanistic insight on EBV-induced B cell dysregulation, and also hint curbing migration as an potential target for reducing the pathogenicity of EBV-infected B cells.
description
Germany
geo_loc_name
healthy
health_state
BC1move
isolate
Homo sapiens
http://purl.obolibrary.org/obo/NCBITaxon_9606
organism
not determined
sex
B-cells
tissue
Human sample from the B-cells subpopulation move
title