Document Type

Article

Publication Date

March 2017

Publication Title

JCI Insight

Volume

2

Issue Number

6

DOI

10.1172/jci.insight.90233

ISSN

2379-3708

Disciplines

Biology | Microbiology | Neuroscience and Neurobiology

Abstract

Antibody-secreting cells are generated in regional lymphoid tissues and traffic as plasmablasts (PBs) via lymph and blood to target sites for local immunity. We used multiparameter flow cytometry to define PB trafficking programs (TPs, combinations of adhesion molecules and chemoattractant receptors) and their imprinting in patients in response to localized infection or immune insults. TPs enriched after infection or autoimmune inflammation of mucosae correlate with sites of immune response or symptoms, with different TPs imprinted during small intestinal, colon, throat, and upper respiratory immune challenge. PBs induced after intramuscular or intradermal influenza vaccination, including flu-specific antibody–secreting cells, display TPs characterized by the lack of mucosal homing receptors. PBs of healthy donors display diverse mucosa-associated TPs, consistent with homeostatic immune activity. Identification of TP signatures of PBs may facilitate noninvasive monitoring of organ-specific immune responses.

Comments

This article originally appeared in JCI Insight, volume 2, issue 6, 2017, and published by the American Society for Clinical Investigation (ASCI). Permission to share the article on here was granted by the publisher. The article can also be found online at this link.

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