% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Zhao:257779,
author = {Zhao, Jingyi and DiGiacomo, Vincent and Ferreras-Gutierrez,
Mariola and Dastjerdi, Shiva and Ibanez de Opakua, Alain and
Park, Jong-Chan and Luebbers, Alex and Chen, Qingyan and
Beeler, Aaron and Blanco, Francisco J and Garcia-Marcos,
Mikel},
title = {{S}mall-molecule targeting of {GPCR}-independent
noncanonical {G}-protein signaling in cancer.},
journal = {Proceedings of the National Academy of Sciences of the
United States of America},
volume = {120},
number = {18},
issn = {0027-8424},
address = {Washington, DC},
publisher = {National Acad. of Sciences},
reportid = {DZNE-2023-00494},
pages = {e2213140120},
year = {2023},
abstract = {Activation of heterotrimeric G-proteins (Gαβγ) by
G-protein-coupled receptors (GPCRs) is a quintessential
mechanism of cell signaling widely targeted by clinically
approved drugs. However, it has become evident that
heterotrimeric G-proteins can also be activated via
GPCR-independent mechanisms that remain untapped as
pharmacological targets. GIV/Girdin has emerged as a
prototypical non-GPCR activator of G proteins that promotes
cancer metastasis. Here, we introduce IGGi-11, a
first-in-class small-molecule inhibitor of noncanonical
activation of heterotrimeric G-protein signaling. IGGi-11
binding to G-protein α-subunits (Gαi) specifically
disrupted their engagement with GIV/Girdin, thereby blocking
noncanonical G-protein signaling in tumor cells and
inhibiting proinvasive traits of metastatic cancer cells. In
contrast, IGGi-11 did not interfere with canonical G-protein
signaling mechanisms triggered by GPCRs. By revealing that
small molecules can selectively disable noncanonical
mechanisms of G-protein activation dysregulated in disease,
these findings warrant the exploration of therapeutic
modalities in G-protein signaling that go beyond targeting
GPCRs.},
keywords = {Vesicular Transport Proteins: metabolism / Microfilament
Proteins: metabolism / Signal Transduction / Receptors,
G-Protein-Coupled: metabolism / Heterotrimeric GTP-Binding
Proteins: metabolism / Neoplasms: metabolism / G protein
(Other) / GPCR (Other) / cancer (Other) / drug discovery
(Other) / Vesicular Transport Proteins (NLM Chemicals) /
Microfilament Proteins (NLM Chemicals) / Receptors,
G-Protein-Coupled (NLM Chemicals) / Heterotrimeric
GTP-Binding Proteins (NLM Chemicals)},
cin = {AG Zweckstetter},
ddc = {500},
cid = {I:(DE-2719)1410001},
pnm = {352 - Disease Mechanisms (POF4-352)},
pid = {G:(DE-HGF)POF4-352},
typ = {PUB:(DE-HGF)16},
pmc = {pmc:PMC10160980},
pubmed = {pmid:37098067},
doi = {10.1073/pnas.2213140120},
url = {https://pub.dzne.de/record/257779},
}