P3, N=56, Recruiting, Rezolute | Not yet recruiting --> Recruiting

P3, N=56, Not yet recruiting, Rezolute

High-dose diazoxide, everolimus, dexamethasone, glucagon, pasireotide, or enteral feeding did not produce a response. No adverse effects have been observed. In summary, the anti-insulin receptor monoclonal antibody RZ358 effectively controlled hypoglycemia refractory to multiple other therapies, allowing restoration of normoglycemia and enabling additional successful cancer therapy.

Meningioma cell growth is critically dependent on autocrine miR-483/IGF-2 stimulation and the IGF-2 pathway provides a feasible meningioma treatment target.

In addition, the combined treatment of ACLY inhibitor ETC-1002 and IGF1R inhibitor Linsitinib dramatically suppressed HOXA13-mediated CRC metastasis. In conclusion, HOXA13 is a prognostic biomarker in CRC patients. Targeting the IGF1-HOXA13-IGF1R positive feedback loop may provide a potential therapeutic strategy for the treatment of HOXA13-driven CRC metastasis.

This data suggest that IGF2 is a potential biological marker for breast cancer disparities and that targeting receptors of IGF2 with drugs such as BMS-754807 could provide additional treatment options in combination with current therapies, thus reducing TNBC progression and ultimately improving patient outcomes. [Funded by NIH U54 143931 Cancer Center Partnership and CBCRP]

Furthermore, pharmacological inhibition of AKT phosphorylation, using MK2206, inhibited the SOX2-mediated spheroid formation of bladder cancer cells...Lastly, pharmacological inhibition of IGF1R, using linsitinib, also inhibited the SOX2-mediated spheroid formation of bladder cancer cells under low-serum stress. Our findings indicate the SOX2-IGF2 signaling affects the aggressiveness of bladder cancer cell growth. This signaling could be a promising biomarker and therapeutic target for bladder cancer intervention.

Taken together, our results are indicative that BMS mainly acts through off-target effects exerted on other protein kinases. Given that BMS exhibits a potent antiproliferative effect, we believe that this compound could be useful for the treatment of different types of tumors independently of their IGF-1R activation status.

In addition, FLNA knockdown potentiated antiproliferative effects of IGF1R/IR inhibitor Linsitinib and IGF1R inhibitor NVP-ADW742 in H295R. Finally, Western blot showed lower FLNA expression in ACCs (n = 10) than in ACAs (n = 10) and an inverse correlation of FLNA/IGF1R ratio with ERK phosphorylation in ACCs only. In conclusion, we demonstrated that low FLNA levels enhance both IGF2 proliferative effects and IGF1R/IR inhibitors efficacy in ACC cells, suggesting FLNA as a new factor influencing tumor clinical behavior and the response to the therapy with IGF1R/IR-targeted drugs.

Pharmacological inhibition of glycolysis and insulin growth factor (IGF) signaling reduce proliferation and tumorigenesis preferentially in KMT2D-deficient cells. We conclude that KMT2D loss promotes tumorigenesis by facilitating an increased use of the glycolysis pathway for enhanced biomass needs via enhancer reprogramming, thus presenting an opportunity for therapeutic intervention through glycolysis or IGF pathway inhibitors.

The IGF1/IGF1R inhibitor, linsitinib, preferentially targeted YTHDF2-expressing cells, inhibiting GSC viability without affecting NSCs and impairing in vivo glioblastoma growth. Thus, YTHDF2 links RNA epitranscriptomic modifications and GSC growth, laying the foundation for the YTHDF2-MYC-IGFBP3 axis as a specific and novel therapeutic target in glioblastoma.

This suggests that intra-pancreatic insulin normally combated pharmacologic effects of PGG and EGCG. In conclusion, intra-pancreatic insulin nourishes pancreatic cancer cells and helps the cells resist IR/IGF1R antagonism.

Additionally, analysis of the GDSC database revealed that KIRC patients with BPP1 mutation are more prone to responding to Linsitinib. Our investigation identified the main pathways and relevant genes related to the BAP1 mutation in KIRC, which can contribute to the development of targeted treatment strategies for enhanced prognostic predictions of KIRC.

Furthermore, we will confirm the effect of IGF1R inhibition on cell proliferation, invasion, migration in both MTAP wild-type and knockout cells using a selective inhibitor of IGF-1R, linsitinib...Impact: These studies will contribute to a better understanding of how metabolic enzymes participate in the regulation of post-translational modifications and cancer progression as well as immunosuppression, allowing for the development of novel targeted therapies and potential therapeutic strategies to enhance cancer immune therapy efficacy for RCC. Funding Mechanism: Idea Development Award - Early Career Investigator

Combination treatment of BMS-754807 (IGF1R/IR) with NVP-AEW541 (IGF1R inhibitor) reduced proliferation of human MDA-MB-231, BT549, HCC1937 and murine 4T1 TNBC cells in vitro (P<0.001). Use of immunotherapy is a promising management option for a subset of TNBC patients, and combination treatments using IGF1R antagonists with immune checkpoint inhibitor may constitute a new treatment strategy to combat this deadly disease. &lsqb;Funding by NCI U54 CA1433930; California Breast Cancer Research Program; UCLA Jonsson

Linsitinib, an oral small-molecule inhibitor of IGF-1R, could inhibit IGF-1-induced ENO2 deacetylation by HDAC3 and the PI3K/AKT/mTOR pathway...Our results reveal a novel mechanism by which acetylation negatively regulates ENO2 activity in the metastasis of PDAC by modulating glycolysis. Blockade of IGF-1-induced ENO2 deacetylation represents a promising strategy to prevent the development of PDAC.

Furthermore, we tested palbociclib in combination with insulin-like growth factor 1/insulin receptor inhibitor linsitinib showing an additive effect. In conclusion, we demonstrate that RNA profiling is useful to discover potential drug targets and that CDK4/6 inhibitors are promising candidates for treatment of selected patients with ACC.

Furthermore, we will confirm the effect of IGF1R inhibition on cell proliferation, invasion, migration in both MTAP wild-type and knockout cells using a selective inhibitor of IGF-1R, linsitinib...In addition, our study will link metabolism and signal pathways to the regulation of PD-L1 expression and immunosuppression. Impact: These studies will contribute to a better understanding of how metabolic enzymes participate in the regulation of post-translational modifications and cancer progression as well as immunosuppression, allowing for the development of novel targeted therapies and potential therapeutic strategies to enhance cancer immune therapy efficacy for RCC.

At the biological level, we found that the IGF-1/IGF-1R-FAK-YAP network cascade triggers the growth potential of TNBC cells, as evaluated in different experimental systems. Overall, our results suggest that the IGF-1/IGF-1R/FAK/YAP axis may contribute to the progression of the aggressive TNBC subtype.

To anticipate possible resistance to ERK inhibitors (ERKi), we used SCH772984 (SCH) as a model ERKi to characterize resistance mechanisms in two BRAF V600E melanoma cell lines. The ERKi-resistant cells were also resistant to vemurafenib (VMF), trametinib (TMT), and combined treatment with either VMF and SCH or TMT and SCH...Inhibition of IGF1R with linsitinib blocked Erk5 activation in SCH-resistant cells and decreased their growth in 3D spheroid growth assays as well as in NOD scid gamma (NSG) mice...In addition, we found that the decreased Erk1/2 activation in SCH-resistant cells involved reduced expression and function of TGF-alpha. These data reveal an escape signaling route that melanoma cells use to bypass Erk1/2 blockade during targeted melanoma treatment and offer several possible targets whose disruption may circumvent resistance.