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Ref Type | Journal Article | ||||||||||||
PMID | (24423321) | ||||||||||||
Authors | Antonelli A, Bocci G, Fallahi P, La Motta C, Ferrari SM, Mancusi C, Fioravanti A, Di Desidero T, Sartini S, Corti A, Piaggi S, Materazzi G, Spinelli C, Fontanini G, Danesi R, Da Settimo F, Miccoli P | ||||||||||||
Title | CLM3, a multitarget tyrosine kinase inhibitor with antiangiogenic properties, is active against primary anaplastic thyroid cancer in vitro and in vivo. | ||||||||||||
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Abstract Text | We have studied the antitumor activity of a pyrazolo[3,4-d]pyrimidine compound (CLM3) proposed for a multiple signal transduction inhibition [including the RET tyrosine kinase, epidermal growth factor receptor, and vascular endothelial growth factor (VEGF) receptor and with antiangiogenic activity] in primary anaplastic thyroid cancer (ATC) cells, in the human cell line 8305C (undifferentiated thyroid cancer), and in an ATC-cell line (AF).CLM3 was tested in primary ATC cells at the concentrations of 5, 10, 30, and 50 μM; in 8305C cells, in AF cells, at 1, 5, 10, 30, 50, or 100 μM; and in AF cells in CD nu/nu mice.CLM3 significantly inhibited the proliferation of 8305C and AF cells, also inducing apoptosis. A significant reduction of proliferation with CLM3 in ATC cells (P < .01, ANOVA) was shown. CLM3 increased the percentage of apoptotic ATC cells dose dependently (P < .001, ANOVA) and inhibited migration (P < .01) and invasion (P < .001). The AF cell line was injected sc in CD nu/nu mice, and tumor masses became detectable 15 days later. CLM3 (50 mg/kg per die) significantly inhibited tumor growth (starting 16 d after the beginning of treatment). CLM3 significantly decreased the VEGF-A expression and microvessel density in AF tumor tissues. Furthermore, CLM3 inhibited epidermal growth factor receptor, AKT, and ERK1/2 phosphorylation and down-regulated cyclin D1 in 8305C and AF cells.The antitumor and antiangiogenic activity of a pyrazolo[3,4-d]pyrimidine compound (CLM3) is very promising in anaplastic thyroid cancer, opening the way to a future clinical evaluation. |
Molecular Profile | Treatment Approach |
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Gene Name | Source | Synonyms | Protein Domains | Gene Description | Gene Role |
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Drug Name | Trade Name | Synonyms | Drug Classes | Drug Description |
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CLM3 | EGFR Inhibitor (Pan) 62 RET Inhibitor 53 VEGFR2 Inhibitor 37 | CLM3 is an small molecule multi-kinase inhibitor with activity against several kinases including Ret, Vegfr2, and Egfr, which potentially leads to decreased tumor cell growth (PMID: 21459081, PMID: 24423321, PMID: 32055496). |
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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BRAF V600E | thyroid cancer | sensitive | CLM3 | Preclinical | Actionable | In a preclinical study, CLM3 inhibited growth, Egfr signaling, and CCND1 expression in thyroid cancer cells harboring BRAF V600E in culture (PMID: 24423321). | 24423321 |
BRAF wild-type | thyroid cancer | sensitive | CLM3 | Preclinical | Actionable | In a preclinical study, CLM3 inhibited growth, Egfr signaling, and CCND1 expression, in BRAF wild-type thyroid cancer cells in culture (PMID: 24423321). | 24423321 |