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@ARTICLE{Rommel:181976,
author = {M. G. E. Rommel and L. Walz and F. Fotopoulou$^*$ and S.
Kohlscheen and F. Schenk and C. Miskey and L. Botezatu and
Y. Krebs and I. M. Voelker and K. Wittwer and T.
Holland-Letz$^*$ and Z. Ivics and V. von Messling and M. A.
G. Essers$^*$ and M. D. Milsom$^*$ and C. K. Pfaller and U.
Modlich},
title = {{I}nfluenza {A} virus infection instructs hematopoiesis to
megakaryocyte-lineage output.},
journal = {Cell reports},
volume = {41},
number = {1},
issn = {2211-1247},
address = {[New York, NY]},
publisher = {Elsevier},
reportid = {DKFZ-2022-02338},
pages = {111447},
year = {2022},
abstract = {Respiratory tract infections are among the deadliest
communicable diseases worldwide. Severe cases of viral lung
infections are often associated with a cytokine storm and
alternating platelet numbers. We report that hematopoietic
stem and progenitor cells (HSPCs) sense a non-systemic
influenza A virus (IAV) infection via inflammatory
cytokines. Irrespective of antiviral treatment or
vaccination, at a certain threshold of IAV titer in the
lung, CD41-positive hematopoietic stem cells (HSCs) enter
the cell cycle while endothelial protein C receptor-positive
CD41-negative HSCs remain quiescent. Active CD41-positive
HSCs represent the source of megakaryocytes, while their
multi-lineage reconstitution potential is reduced. This
emergency megakaryopoiesis is thrombopoietin independent and
attenuated in IAV-infected interleukin-1 receptor-deficient
mice. Newly produced platelets during IAV infection are
immature and hyper-reactive. After viral clearance, HSC
quiescence is re-established. Our study reveals that
non-systemic viral respiratory infection has an acute impact
on HSCs via inflammatory cytokines to counteract IAV-induced
thrombocytopenia.},
keywords = {CP: Immunology (Other) / CP: Microbiology (Other) /
cytokines (Other) / emergency megakaryopoiesis (Other) /
hematopoietic stem cell activation (Other) / inflammation
(Other) / influenza (Other) / platelet activation (Other) /
respiratory virus infection (Other) / vaccination (Other)},
cin = {A012 / C060 / A011},
ddc = {610},
cid = {I:(DE-He78)A012-20160331 / I:(DE-He78)C060-20160331 /
I:(DE-He78)A011-20160331},
pnm = {311 - Zellbiologie und Tumorbiologie (POF4-311)},
pid = {G:(DE-HGF)POF4-311},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:36198277},
doi = {10.1016/j.celrep.2022.111447},
url = {https://inrepo02.dkfz.de/record/181976},
}