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@ARTICLE{Liepelt:817934,
author = {Liepelt, Anke and Naarmann-de Vries, Isabel S and Simons,
Nadine and Eichelbaum, Katrin and Föhr, Sophia and Archer,
Stuart K and Castello, Alfredo and Usadel, Björn and
Krijgsveld, Jeroen and Preiss, Thomas and Marx, Gernot and
Hentze, Matthias W and Ostareck, Dirk H and
Ostareck-Lederer, Antje},
title = {{I}dentification of {RNA}-binding {P}roteins in
{M}acrophages by {I}nteractome {C}apture.},
journal = {Molecular $\&$ cellular proteomics},
volume = {15},
number = {8},
issn = {1535-9484},
address = {Bethesda, Md.},
publisher = {The American Society for Biochemistry and Molecular
Biology},
reportid = {FZJ-2016-04526},
pages = {2699 - 2714},
year = {2016},
abstract = {Pathogen components, such as lipopolysaccharides of
Gram-negative bacteria that activate Toll-like receptor 4,
induce mitogen activated protein kinases and NFκB through
different downstream pathways to stimulate pro- and
anti-inflammatory cytokine expression. Importantly,
post-transcriptional control of the expression of Toll-like
receptor 4 downstream signaling molecules contributes to the
tight regulation of inflammatory cytokine synthesis in
macrophages. Emerging evidence highlights the role of
RNA-binding proteins (RBPs) in the post-transcriptional
control of the innate immune response. To systematically
identify macrophage RBPs and their response to LPS
stimulation, we employed RNA interactome capture in
LPS-induced and untreated murine RAW 264.7 macrophages. This
combines RBP-crosslinking to RNA, cell lysis, oligo(dT)
capture of polyadenylated RNAs and mass spectrometry
analysis of associated proteins. Our data revealed 402
proteins of the macrophage RNA interactome including 91
previously not annotated as RBPs. A comparison with
published RNA interactomes classified 32 RBPs uniquely
identified in RAW 264.7 macrophages. Of these, 19 proteins
are linked to biochemical activities not directly related to
RNA. From this group, we validated the HSP90 cochaperone P23
that was demonstrated to exhibit cytosolic prostaglandin E2
synthase 3 (PTGES3) activity, and the hematopoietic
cell-specific LYN substrate 1 (HCLS1 or HS1), a
hematopoietic cell-specific adapter molecule, as novel
macrophage RBPs. Our study expands the mammalian RBP
repertoire, and identifies macrophage RBPs that respond to
LPS. These RBPs are prime candidates for the
post-transcriptional regulation and execution of LPS-induced
signaling pathways and the innate immune response.
Macrophage RBP data have been deposited to ProteomeXchange
with identifier PXD002890.},
cin = {IBG-2},
ddc = {540},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {582 - Plant Science (POF3-582)},
pid = {G:(DE-HGF)POF3-582},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:27281784},
UT = {WOS:000380809100012},
doi = {10.1074/mcp.M115.056564},
url = {https://juser.fz-juelich.de/record/817934},
}