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@ARTICLE{Sorrentino:180022,
author = {A. Sorrentino$^*$ and A. N. Menevse and T. Michels$^*$ and
V. Volpin$^*$ and F. C. Durst and J. Sax and M. Xydia and A.
Hussein and S. Stamova and S. Spoerl and N. Heuschneider and
J. Muehlbauer and K. M. Jeltsch and A. Rathinasamy and M.
Werner-Klein and M. Breinig$^*$ and D. Mikietyn and C.
Kohler and I. Poschke$^*$ and S. Purr$^*$ and O. Reidell and
C. Martins Freire and R. Offringa$^*$ and C. Gebhard and R.
Spang and M. Rehli and M. Boutros$^*$ and C. Schmidl and N.
Khandelwal$^*$ and P. Beckhove$^*$},
title = {{S}alt-inducible kinase 3 protects tumor cells from
cytotoxic {T}-cell attack by promoting {TNF}-induced
{NF}-κ{B} activation.},
journal = {Journal for ImmunoTherapy of Cancer},
volume = {10},
number = {5},
issn = {2051-1426},
address = {London},
publisher = {BioMed Central},
reportid = {DKFZ-2022-01039},
pages = {e004258},
year = {2022},
note = {#EA:D015#},
abstract = {Cancer immunotherapeutic strategies showed unprecedented
results in the clinic. However, many patients do not respond
to immuno-oncological treatments due to the occurrence of a
plethora of immunological obstacles, including tumor
intrinsic mechanisms of resistance to cytotoxic T-cell (TC)
attack. Thus, a deeper understanding of these mechanisms is
needed to develop successful immunotherapies.To identify
novel genes that protect tumor cells from effective
TC-mediated cytotoxicity, we performed a genetic screening
in pancreatic cancer cells challenged with
tumor-infiltrating lymphocytes and antigen-specific TCs.The
screening revealed 108 potential genes that protected tumor
cells from TC attack. Among them, salt-inducible kinase 3
(SIK3) was one of the strongest hits identified in the
screening. Both genetic and pharmacological inhibitions of
SIK3 in tumor cells dramatically increased TC-mediated
cytotoxicity in several in vitro coculture models, using
different sources of tumor and TCs. Consistently, adoptive
TC transfer of TILs led to tumor growth inhibition of
SIK3-depleted cancer cells in vivo. Mechanistic analysis
revealed that SIK3 rendered tumor cells susceptible to tumor
necrosis factor (TNF) secreted by tumor-activated TCs. SIK3
promoted nuclear factor kappa B (NF-κB) nuclear
translocation and inhibited caspase-8 and caspase-9 after
TNF stimulation. Chromatin accessibility and transcriptome
analyses showed that SIK3 knockdown profoundly impaired the
expression of prosurvival genes under the TNF-NF-κB axis.
TNF stimulation led to SIK3-dependent phosphorylation of the
NF-κB upstream regulators inhibitory-κB kinase and
NF-kappa-B inhibitor alpha on the one side, and to
inhibition of histone deacetylase 4 on the other side, thus
sustaining NF-κB activation and nuclear stabilization. A
SIK3-dependent gene signature of TNF-mediated NF-κB
activation was found in a majority of pancreatic cancers
where it correlated with increased cytotoxic TC activity and
poor prognosis.Our data reveal an abundant molecular
mechanism that protects tumor cells from cytotoxic TC attack
and demonstrate that pharmacological inhibition of this
pathway is feasible.},
keywords = {CD8-positive T-lymphocytes (Other) / cytokines (Other) /
immunomodulation (Other) / immunotherapy (Other) / tumor
escape (Other)},
cin = {D015 / F190 / D200 / D170 / HD01},
ddc = {610},
cid = {I:(DE-He78)D015-20160331 / I:(DE-He78)F190-20160331 /
I:(DE-He78)D200-20160331 / I:(DE-He78)D170-20160331 /
I:(DE-He78)HD01-20160331},
pnm = {314 - Immunologie und Krebs (POF4-314)},
pid = {G:(DE-HGF)POF4-314},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:35606086},
doi = {10.1136/jitc-2021-004258},
url = {https://inrepo02.dkfz.de/record/180022},
}