PuSH - Publikationsserver des Helmholtz Zentrums München

O'Connor, T.* ; Frei, N.* ; Sponarova, J.* ; Schwarz, P.* ; Heikenwälder, M.* ; Aguzzi, A.*

Lymphotoxin, but not TNF, is required for prion invasion of lymph nodes.

PLoS Pathog. 8:e1002867 (2012)
DOI PMC
Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
Neuroinvasion and subsequent destruction of the central nervous system by prions are typically preceded by a colonization phase in lymphoid organs. An important compartment harboring prions in lymphoid tissue is the follicular dendritic cell (FDC), which requires both tumor necrosis factor receptor 1 (TNFR1) and lymphotoxin β receptor (LTβR) signaling for maintenance. However, prions are still detected in TNFR1⁻/⁻ lymph nodes despite the absence of mature FDCs. Here we show that TNFR1-independent prion accumulation in lymph nodes depends on LTβR signaling. Loss of LTβR signaling, but not of TNFR1, was concurrent with the dedifferentiation of high endothelial venules (HEVs) required for lymphocyte entry into lymph nodes. Using luminescent conjugated polymers for histochemical PrP(Sc) detection, we identified PrP(Sc) deposits associated with HEVs in TNFR1⁻/⁻ lymph nodes. Hence, prions may enter lymph nodes by HEVs and accumulate or replicate in the absence of mature FDCs.
Impact Factor
Scopus SNIP
Scopus
Cited By
Altmetric
0.000
1.841
13
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Sprache englisch
Veröffentlichungsjahr 2012
HGF-Berichtsjahr 0
ISSN (print) / ISBN 1553-7366
e-ISSN 1553-7374
Zeitschrift PLoS Pathogens
Quellenangaben Band: 8, Heft: 8, Seiten: , Artikelnummer: e1002867 Supplement: ,
Verlag Public Library of Science (PLoS)
Begutachtungsstatus Peer reviewed
PubMed ID 22912582
Erfassungsdatum 2013-04-12