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Ref Type | Journal Article | ||||||||||||
PMID | (26046350) | ||||||||||||
Authors | Moccia M, Liu Q, Guida T, Federico G, Brescia A, Zhao Z, Choi HG, Deng X, Tan L, Wang J, Billaud M, Gray NS, Carlomagno F, Santoro M | ||||||||||||
Title | Identification of Novel Small Molecule Inhibitors of Oncogenic RET Kinase. | ||||||||||||
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Abstract Text | Oncogenic mutation of the RET receptor tyrosine kinase is observed in several human malignancies. Here, we describe three novel type II RET tyrosine kinase inhibitors (TKI), ALW-II-41-27, XMD15-44 and HG-6-63-01, that inhibit the cellular activity of oncogenic RET mutants at two digit nanomolar concentration. These three compounds shared a 3-trifluoromethyl-4-methylpiperazinephenyl pharmacophore that stabilizes the 'DFG-out' inactive conformation of RET activation loop. They blocked RET-mediated signaling and proliferation with an IC50 in the nM range in fibroblasts transformed by the RET/C634R and RET/M918T oncogenes. They also inhibited autophosphorylation of several additional oncogenic RET-derived point mutants and chimeric oncogenes. At a concentration of 10 nM, ALW-II-41-27, XMD15-44 and HG-6-63-01 inhibited RET kinase and signaling in human thyroid cancer cell lines carrying oncogenic RET alleles; they also inhibited proliferation of cancer, but not non-tumoral Nthy-ori-3-1, thyroid cells, with an IC50 in the nM range. The three compounds were capable of inhibiting the 'gatekeeper' V804M mutant which confers substantial resistance to established RET inhibitors. In conclusion, we have identified a type II TKI scaffold, shared by ALW-II-41-27, XMD15-44 and HG-6-63-01, that may be used as novel lead for the development of novel agents for the treatment of cancers harboring oncogenic activation of RET. |
Molecular Profile | Treatment Approach |
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Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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Therapy Name | Drugs | Efficacy Evidence | Clinical Trials |
---|---|---|---|
ALW-II-41-27 | ALW-II-41-27 | 4 | 0 |
HG-6-63-01 | HG-6-63-01 | 4 | 0 |
XMD15-44 | XMD15-44 | 4 | 0 |
Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
---|---|---|---|---|
ALW-II-41-27 | RET Inhibitor 53 | ALW-II-41-27 is a small molecule that inhibits EPHA2 and RET, leading to decreased tumor cell proliferation and viability (PMID: 24713656, PMID: 26046350, PMID: 32848131). | ||
HG-6-63-01 | RET Inhibitor 53 | HG-6-63-01 inhibits RET, resulting in decreased downstream signaling and reduced tumor cell proliferation (PMID: 26046350). | ||
XMD15-44 | RET Inhibitor 53 | XMD15-44 inhibits RET, resulting in decreased downstream signaling and reduced tumor cell proliferation (PMID: 26046350). |
Gene | Variant | Impact | Protein Effect | Variant Description | Associated with drug Resistance |
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Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
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RET C634W | medullary thyroid carcinoma | sensitive | HG-6-63-01 | Preclinical | Actionable | In a preclinical study, HG-6-63-01 inhibited RET phosphorylation and downstream signaling and reduced proliferation of medullary thyroid carcinoma cells harboring RET C634W in culture (PMID: 26046350). | 26046350 |
RET C634Y | Advanced Solid Tumor | sensitive | XMD15-44 | Preclinical | Actionable | In a preclinical study, XMD15-44 inhibited RET phosphorylation and downstream signaling and reduced proliferation of transformed cells expressing RET C634Y in culture (PMID: 26046350). | 26046350 |
RET M918T | Advanced Solid Tumor | sensitive | HG-6-63-01 | Preclinical | Actionable | In a preclinical study, HG-6-63-01 inhibited RET phosphorylation and downstream signaling and reduced proliferation of transformed cells expressing RET M918T in culture (PMID: 26046350). | 26046350 |
RET M918T | Advanced Solid Tumor | sensitive | XMD15-44 | Preclinical | Actionable | In a preclinical study, XMD15-44 inhibited RET phosphorylation and downstream signaling and reduced proliferation of transformed cells expressing RET M918T in culture (PMID: 26046350). | 26046350 |
RET M918T | medullary thyroid carcinoma | sensitive | ALW-II-41-27 | Preclinical - Cell culture | Actionable | In a preclinical study, ALW-II-41-27 inhibited RET phosphorylation and downstream signaling and reduced proliferation of medullary thryoid carcinoma cells harboring RET M918T in culture (PMID: 26046350). | 26046350 |
RET M918T | medullary thyroid carcinoma | sensitive | XMD15-44 | Preclinical | Actionable | In a preclinical study, XMD15-44 inhibited RET phosphorylation and downstream signaling and reduced proliferation of medullary thyroid carcinoma cells harboring RET M918T in culture (PMID: 26046350). | 26046350 |
RET C634Y | Advanced Solid Tumor | sensitive | HG-6-63-01 | Preclinical | Actionable | In a preclinical study, HG-6-63-01 inhibited RET phosphorylation and downstream signaling and reduced proliferation of transformed cells expressing RET C634Y in culture (PMID: 26046350). | 26046350 |
RET C634Y | Advanced Solid Tumor | sensitive | ALW-II-41-27 | Preclinical - Cell culture | Actionable | In a preclinical study, ALW-II-41-27 inhibited RET phosphorylation and downstream signaling, reduced proliferation of transformed cells expressing RET C634Y in culture (PMID: 26046350). | 26046350 |
RET M918T | medullary thyroid carcinoma | sensitive | HG-6-63-01 | Preclinical | Actionable | In a preclinical study, HG-6-63-01 inhibited RET phosphorylation and downstream signaling and reduced proliferation of medullary thyroid carcinoma cells harboring RET M918T in culture (PMID: 26046350). | 26046350 |
RET C634W | medullary thyroid carcinoma | sensitive | ALW-II-41-27 | Preclinical - Cell culture | Actionable | In a preclinical study, ALW-II-41-27 inhibited RET phosphorylation and downstream signaling and reduced proliferation of medullary thyroid carcinoma cells harboring RET C634W in culture (PMID: 26046350). | 26046350 |
RET C634W | medullary thyroid carcinoma | sensitive | XMD15-44 | Preclinical | Actionable | In a preclinical study, XMD15-44 inhibited RET phosphorylation and downstream signaling and reduced proliferation of medullary thyroid carcinoma cells harboring RET C634W in culture (PMID: 26046350). | 26046350 |
RET M918T | Advanced Solid Tumor | sensitive | ALW-II-41-27 | Preclinical - Cell culture | Actionable | In a preclinical study, ALW-II-41-27 inhibited RET phosphorylation and downstream signaling, reduced proliferation of transformed cells expressing RET M918T in culture (PMID: 26046350). | 26046350 |