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- W2023172313 abstract "Proceedings: AACR 102nd Annual Meeting 2011‐‐ Apr 2‐6, 2011; Orlando, FLPancreatic cancer is a deadly malignancy in need of effective treatments. The most common driving oncogenes in pancreatic cancer – KRAS, p53, SMAD4, CDKN2A and CTNNB1 – historically have been difficult drug targets to modulate pharmacologically. An alternative approach could be to target regulators of tumor-stroma interactions. Pancreatic cancer invasion into neural tissue precedes tumor expansion. This perineural invasion is strongly associated with neural hypertrophy, pain and poor survival, and neurotrophins and their receptors (TRKs) are key suspects in mediating this process. At the same time, infiltrating macrophages are an additional component of the tumor microenvironment that supports tumor growth, invasion and inflammation, and the receptor for CSF-1 (FMS) is a key mediator of the function and survival of these macrophages. Both TRKs and FMS are transmembrane proteins with tyrosine kinase activities that can be inhibited with small molecule agents.We have developed a series of TRK/FMS dual inhibitors to target cancers that exhibit both neural and inflammatory components. These compounds inhibit biochemical TRK and FMS kinases with IC50 80% at doses of 20 mg/kg qd, and without body weight changes, showing that efficacy is not due to nonspecific toxicity. In a mouse Complete Freund's Adjuvant (CFA) model, robust efficacy was demonstrated in readouts of paw edema, thermal hyperalgesia and mechanical allodynia, showing that these compounds reduce swelling and pain. In the TRK-driven SK-N-SH xenograft model, tumor growth reduction of >50% was observed. These compounds also showed anti-tumor efficacy of >40% in an orthotopic Panc-1 (pancreatic cancer) model. Evaluation of compound effects on perineural invasion and inflammation is ongoing.Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 553. doi:10.1158/1538-7445.AM2011-553" @default.
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- W2023172313 date "2011-04-15" @default.
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- W2023172313 title "Abstract 553: Discovery of novel TRK/FMS dual inhibitors as therapeutic candidates for pancreatic cancer" @default.
- W2023172313 doi "https://doi.org/10.1158/1538-7445.am2011-553" @default.
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