Einwächter, H.* ; Heiseke, A.* ; Schlitzer, A.* ; Gasteiger, G.* ; Adler, H. ; Voehringer, D.* ; Manz, M.G.* ; Ruzsics, Z.* ; Dölken, L.* ; Koszinowski, U.H.* ; Sparwasser, T.* ; Reindl, W.* ; Jordan, S.*
The innate immune response to infection induces erythropoietin-dependent replenishment of the dendritic cell compartment.
Front. Immunol. 11:1627 (2020)
Dendritic cells (DC) play a key role in the adaptive immune response due to their ability to present antigens and stimulate naive T cells. Many bacteria and viruses can efficiently target DC, resulting in impairment of their immunostimulatory function or elimination. Hence, the DC compartment requires replenishment following infection to ensure continued operational readiness of the adaptive immune system. Here, we investigated the molecular and cellular mechanisms of inflammation-induced DC generation. We found that infection with viral and bacterial pathogens as well as Toll-like receptor 9 (TLR9) ligation with CpG-oligodeoxynucleotide (CpG-ODN) expanded an erythropoietin (EPO)-dependent TER119(+)CD11a(+)cell population in the spleen that had the capacity to differentiate into TER119(+)CD11c(high)and TER119(-)CD11c(high)cells bothin vitroandin vivo. TER119(+)CD11c(high)cells contributed to the conventional DC pool in the spleen and specifically increased in lymph nodes draining the site of local inflammation. Our results reveal a so far undescribed inflammatory EPO-dependent pathway of DC differentiation and establish a mechanistic link between innate immune recognition of potential immunosuppressive pathogens and the maintenance of the DC pool during and after infection.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publication type
Article: Journal article
Document type
Scientific Article
Thesis type
Editors
Keywords
Infection ; Inflammation ; Erythropoietin ; Dendritic Cell ; Extramedullary Hematopoiesis ; Ter119 ; Toll-like Receptor; High-dimensional Analysis; T-cells; Extramedullary Erythropoiesis; Bone-marrow; Cytomegalovirus; Hematopoiesis; Identification; Macrophages; Homeostasis; Recognizes
Keywords plus
Language
english
Publication Year
2020
Prepublished in Year
HGF-reported in Year
2020
ISSN (print) / ISBN
1664-3224
e-ISSN
1664-3224
ISBN
Book Volume Title
Conference Title
Conference Date
Conference Location
Proceedings Title
Quellenangaben
Volume: 11,
Issue: ,
Pages: ,
Article Number: 1627
Supplement: ,
Series
Publisher
Frontiers
Publishing Place
Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland
Day of Oral Examination
0000-00-00
Advisor
Referee
Examiner
Topic
University
University place
Faculty
Publication date
0000-00-00
Application date
0000-00-00
Patent owner
Further owners
Application country
Patent priority
Reviewing status
Peer reviewed
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Lung Research
PSP Element(s)
G-503100-005
Grants
Copyright
Erfassungsdatum
2020-09-15