Bacterial infection disrupts established germinal center reactions through monocyte recruitment and impaired metabolic adaptation
(2022) In Immunity 55(3). p.8-458- Abstract
Consecutive exposures to different pathogens are highly prevalent and often alter the host immune response. However, it remains unknown how a secondary bacterial infection affects an ongoing adaptive immune response elicited against primary invading pathogens. We demonstrated that recruitment of Sca-1 + monocytes into lymphoid organs during Salmonella Typhimurium (STm) infection disrupted pre-existing germinal center (GC) reactions. GC responses induced by influenza, plasmodium, or commensals deteriorated following STm infection. GC disruption was independent of the direct bacterial interactions with B cells and instead was induced through recruitment of CCR2-dependent Sca-1 + monocytes into the lymphoid organs. GC collapse was... (More)
Consecutive exposures to different pathogens are highly prevalent and often alter the host immune response. However, it remains unknown how a secondary bacterial infection affects an ongoing adaptive immune response elicited against primary invading pathogens. We demonstrated that recruitment of Sca-1 + monocytes into lymphoid organs during Salmonella Typhimurium (STm) infection disrupted pre-existing germinal center (GC) reactions. GC responses induced by influenza, plasmodium, or commensals deteriorated following STm infection. GC disruption was independent of the direct bacterial interactions with B cells and instead was induced through recruitment of CCR2-dependent Sca-1 + monocytes into the lymphoid organs. GC collapse was associated with impaired cellular respiration and was dependent on TNFα and IFNγ, the latter of which was essential for Sca-1 + monocyte differentiation. Monocyte recruitment and GC disruption also occurred during LPS-supplemented vaccination and Listeria monocytogenes infection. Thus, systemic activation of the innate immune response upon severe bacterial infection is induced at the expense of antibody-mediated immunity.
(Less)
- author
- publishing date
- 2022-03-08
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- B-Lymphocytes, Bacterial Infections, Germinal Center, Humans, Listeriosis, Monocytes
- in
- Immunity
- volume
- 55
- issue
- 3
- pages
- 8 - 458
- publisher
- Cell Press
- external identifiers
-
- scopus:85125657482
- pmid:35182483
- ISSN
- 1074-7613
- DOI
- 10.1016/j.immuni.2022.01.013
- language
- English
- LU publication?
- no
- additional info
- Copyright © 2022 Elsevier Inc. All rights reserved.
- id
- 5ddbd4d6-a0ec-4558-ba1b-5596edc6d3ea
- date added to LUP
- 2023-11-16 12:47:03
- date last changed
- 2024-04-29 18:23:15
@article{5ddbd4d6-a0ec-4558-ba1b-5596edc6d3ea, abstract = {{<p>Consecutive exposures to different pathogens are highly prevalent and often alter the host immune response. However, it remains unknown how a secondary bacterial infection affects an ongoing adaptive immune response elicited against primary invading pathogens. We demonstrated that recruitment of Sca-1 + monocytes into lymphoid organs during Salmonella Typhimurium (STm) infection disrupted pre-existing germinal center (GC) reactions. GC responses induced by influenza, plasmodium, or commensals deteriorated following STm infection. GC disruption was independent of the direct bacterial interactions with B cells and instead was induced through recruitment of CCR2-dependent Sca-1 + monocytes into the lymphoid organs. GC collapse was associated with impaired cellular respiration and was dependent on TNFα and IFNγ, the latter of which was essential for Sca-1 + monocyte differentiation. Monocyte recruitment and GC disruption also occurred during LPS-supplemented vaccination and Listeria monocytogenes infection. Thus, systemic activation of the innate immune response upon severe bacterial infection is induced at the expense of antibody-mediated immunity. </p>}}, author = {{Biram, Adi and Liu, Jingjing and Hezroni, Hadas and Davidzohn, Natalia and Schmiedel, Dominik and Khatib-Massalha, Eman and Haddad, Montaser and Grenov, Amalie and Lebon, Sacha and Salame, Tomer Meir and Dezorella, Nili and Hoffman, Dotan and Abou Karam, Paula and Biton, Moshe and Lapidot, Tsvee and Bemark, Mats and Avraham, Roi and Jung, Steffen and Shulman, Ziv}}, issn = {{1074-7613}}, keywords = {{B-Lymphocytes; Bacterial Infections; Germinal Center; Humans; Listeriosis; Monocytes}}, language = {{eng}}, month = {{03}}, number = {{3}}, pages = {{8--458}}, publisher = {{Cell Press}}, series = {{Immunity}}, title = {{Bacterial infection disrupts established germinal center reactions through monocyte recruitment and impaired metabolic adaptation}}, url = {{http://dx.doi.org/10.1016/j.immuni.2022.01.013}}, doi = {{10.1016/j.immuni.2022.01.013}}, volume = {{55}}, year = {{2022}}, }