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@ARTICLE{Lesina:129041,
author = {M. Lesina and S. M. Wörmann and J. Morton and K. N.
Diakopoulos and O. Korneeva and M. Wimmer and H. Einwächter
and J. Sperveslage and I. E. Demir and T. Kehl$^*$ and D.
Saur and B. Sipos and M. Heikenwälder$^*$ and J. M. Steiner
and T. C. Wang and O. J. Sansom and R. M. Schmid and H.
Algül},
title = {{R}el{A} regulates {CXCL}1/{CXCR}2-dependent
oncogene-induced senescence in murine {K}ras-driven
pancreatic carcinogenesis.},
journal = {The journal of clinical investigation},
volume = {126},
number = {8},
issn = {1558-8238},
address = {Ann Arbor, Mich.},
publisher = {ASCJ},
reportid = {DKFZ-2017-05046},
pages = {2919 - 2932},
year = {2016},
abstract = {Tumor suppression that is mediated by oncogene-induced
senescence (OIS) is considered to function as a safeguard
during development of pancreatic ductal adenocarcinoma
(PDAC). However, the mechanisms that regulate OIS in PDAC
are poorly understood. Here, we have determined that nuclear
RelA reinforces OIS to inhibit carcinogenesis in the Kras
mouse model of PDAC. Inactivation of RelA accelerated
pancreatic lesion formation in Kras mice by abrogating the
senescence-associated secretory phenotype (SASP) gene
transcription signature. Using genetic and pharmacological
tools, we determined that RelA activation promotes OIS via
elevation of the SASP factor CXCL1 (also known as KC), which
activates CXCR2, during pancreatic carcinogenesis. In Kras
mice, pancreas-specific inactivation of CXCR2 prevented OIS
and was correlated with increased tumor proliferation and
decreased survival. Moreover, reductions in CXCR2 levels
were associated with advanced neoplastic lesions in tissue
from human pancreatic specimens. Genetically disabling OIS
in Kras mice caused RelA to promote tumor proliferation,
suggesting a dual role for RelA signaling in pancreatic
carcinogenesis. Taken together, our data suggest a pivotal
role for RelA in regulating OIS in preneoplastic lesions and
implicate the RelA/CXCL1/CXCR2 axis as an essential
mechanism of tumor surveillance in PDAC.},
keywords = {Chemokine CXCL1 (NLM Chemicals) / Cxcl1 protein, mouse (NLM
Chemicals) / RNA, Messenger (NLM Chemicals) / Receptors,
Interleukin-8B (NLM Chemicals) / Rela protein, mouse (NLM
Chemicals) / Transcription Factor RelA (NLM Chemicals) / ras
Proteins (NLM Chemicals)},
cin = {V155 / F180},
ddc = {610},
cid = {I:(DE-He78)V155-20160331 / I:(DE-He78)F180-20160331},
pnm = {316 - Infections and cancer (POF3-316)},
pid = {G:(DE-HGF)POF3-316},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:27454298},
pmc = {pmc:PMC4966329},
doi = {10.1172/JCI86477},
url = {https://inrepo02.dkfz.de/record/129041},
}