PMID- 30205005
OWN - NLM
STAT- Publisher
LR  - 20180911
IS  - 1520-4804 (Electronic)
IS  - 0022-2623 (Linking)
DP  - 2018 Sep 11
TI  - Discovery and Structure-Based Optimization of Benzimidazole-Derived Activators of
      SOS1-Mediated Nucleotide Exchange on RAS.
LID - 10.1021/acs.jmedchem.8b01108 [doi]
AB  - Son of sevenless homologue 1 (SOS1) is a guanine nucleotide exchange factor that 
      catalyzes the exchange of GDP for GTP on RAS. In its active form, GTP-bound RAS
      is responsible for numerous critical cellular processes. Aberrant RAS activity is
      involved in ~30% of all human cancers; hence, SOS1 is an attractive therapeutic
      target for its role in modulating RAS activation. Here, we describe a new series 
      of benzimidazole-derived SOS1 agonists. Using structure-guided design, we
      discovered small molecules that increase nucleotide exchange on RAS in vitro at
      sub-micromolar concentrations, bind to SOS1 with low double digit nanomolar
      affinity, rapidly enhance cellular RAS-GTP levels, and invoke biphasic signaling 
      changes in phosphorylation of ERK 1/2. These compounds represent the most potent 
      series of SOS1 agonists reported to date.
FAU - Hodges, Timothy Robert
AU  - Hodges TR
FAU - Abbott, Jason R
AU  - Abbott JR
FAU - Little, Andrew J
AU  - Little AJ
FAU - Sarkar, Dhruba
AU  - Sarkar D
FAU - Salovich, James M
AU  - Salovich JM
FAU - Howes, Jennifer
AU  - Howes J
FAU - Akan, Denis T
AU  - Akan DT
FAU - Sai, Jiqing
AU  - Sai J
FAU - Arnold, Allison L
AU  - Arnold AL
FAU - Browning, Carrie
AU  - Browning C
FAU - Burns, Michael C
AU  - Burns MC
FAU - Sobolik, Tammy
AU  - Sobolik T
FAU - Sun, Qi
AU  - Sun Q
FAU - Beesetty, Yugandhar
AU  - Beesetty Y
FAU - Coker, Jesse
AU  - Coker J
FAU - Scharn, Dirk
AU  - Scharn D
FAU - Stadtmueller, Heinz
AU  - Stadtmueller H
FAU - Rossanese, Olivia W
AU  - Rossanese OW
FAU - Phan, Jason
AU  - Phan J
FAU - Waterson, Alex G
AU  - Waterson AG
FAU - McConnell, Darryl B
AU  - McConnell DB
FAU - Fesik, Stephen W
AU  - Fesik SW
LA  - eng
PT  - Journal Article
DEP - 20180911
PL  - United States
TA  - J Med Chem
JT  - Journal of medicinal chemistry
JID - 9716531
EDAT- 2018/09/12 06:00
MHDA- 2018/09/12 06:00
CRDT- 2018/09/12 06:00
PHST- 2018/09/12 06:00 [entrez]
PHST- 2018/09/12 06:00 [pubmed]
PHST- 2018/09/12 06:00 [medline]
AID - 10.1021/acs.jmedchem.8b01108 [doi]
PST - aheadofprint
SO  - J Med Chem. 2018 Sep 11. doi: 10.1021/acs.jmedchem.8b01108.