In this study, we used the previously reported SHP2 allosteric inhibitor IACS-13909 as a lead drug for structural derivation and modification, and synthesized three SHP2 inhibitors...Furthermore, the combination therapy of compound 4b and KRAS inhibitor sotorasib would play a strong synergistic effect against NCI-H358 cells...Molecular docking study predicted that compound 4b bound to the allosteric site of SHP2 and formed H-bond interactions with key residues Thr108, Glu110, Arg111, and Phe113. In summary, this study aims to provide new ideas for the development of SHP2 allosteric inhibitors for the treatment of KRAS mutant non-small cell lung cancer.Communicated by Ramaswamy H. Sarma.
Pharmacologic targeting by SHP2 inhibitors TNO155 or IACS-13909 as well as dual SHP2/JAK2 targeting was evaluated in MPN cell lines and primary MPN patient cells. Our findings suggest a relevant role of SHP2 in MPN given enhanced MAPK pathway suppression and correctiveeffects when SHP2 is targeted in MPN cells, mouse models and primary patient isolates. Further studies will delineate the involvement of SHP2 phosphatase vs. non-phosphatase functions and detail the potential of JAK2/SHP2 inhibition as therapeutic approach in MPN.
over 1 year ago
Clinical
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STAT3 (Signal Transducer And Activator Of Transcription 3) • CALR (Calreticulin) • DUSP6 (Dual specificity phosphatase 6) • GAB1 (GRB2 Associated Binding Protein 1)
Further study showed that PTPN11 interference and specific inhibitors IACS-13909 abrogated the discrepancy of self-renewal ability, proliferation, migration and tumorigenicity capacity between miR-6071 overexpression HCC cells and control cells. Clinical cohort analysis revealed that HCC patients with high miR-6071 expression got more survival benefit from postoperative lenvatinib treatment than patients with low miR-6071 levels. In conclusion, our study demonstrated a regulation mechanism of LCSCs, a target against LSCSs, and a biomarker for postoperative lenvatinib treatment.
over 2 years ago
Journal
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PTPN11 (Protein Tyrosine Phosphatase Non-Receptor Type 11)
In EGFRmut osimertinib-resistant NSCLC models with EGFR-dependent and EGFR-independent resistance mechanisms, IACS-13909, administered as a single agent or in combination with osimertinib, potently suppressed tumor cell proliferation in vitro and caused tumor regression in vivo. Together, our findings provide preclinical evidence for using a SHP2 inhibitor as a therapeutic strategy in acquired EGFR inhibitor-resistant NSCLC.