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AMG-176 (Synonyms: AMG-176)

Catalog No.GC19452

AMG-176 (AMG-176) is a potent, selective and orally active MCL-1 inhibitor, with a Ki of 0.13 nM.

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AMG-176 Chemical Structure

Cas No.: 1883727-34-1

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Sample solution is provided at 25 µL, 10mM.

Description Protocol Chemical Properties Product Documents Related Products

AMG-176 (Tapotoclax) is a potent, selective and orally active MCL-1 inhibitor, with a Ki of 0.13 nM. AMG-176 is a potent antagonist of Mcl-1; in cell free system the Ki value is <1 nM. In whole cells, the drug was tested in different leukemias, lymphoma, and multiple myeloma cell lines[1]. AMG-176 incubations resulted in time- and dose-dependent CLL cell death. At 100 and 300 nmol/L, there was 30% and 45% cell death at 24 hours. These concentrations did not result in significant cell death in normal hematopoietic cells. Presence of stroma did not affect AMG-176-induced CLL cell death[4].AMG-176 induced cell death was inversely correlated with endogenous McL-1 levels[5].

AMG-176 has a weak ability to induce apoptosis in C002M melanoma cell line, but a strong ability to induce apoptosis in C057M melanoma cell line. AMG-176 has a synergistic effect with I-BET151 in these two melanoma cell lines[2]. AMG-176 completely neutralized the survival effect of the IDO1/Kyn/AHR pathway in CLL cells[6].

AMG-176 Is Efficacious in Multiple Myeloma. In vivo, Dose-dependent activation of the intrinsic apoptosis pathway in OPM-2 xenografts, as measured by activated BAK, cleaved caspase-3, and cleaved PARP, was detected as early as 2 hours after oral administration of AMG 176, with sustained cleaved PARP and activated BAK detectable through 12 hours and cleaved caspase-3 through 24 hours. Immunohistochemistry analysis revealed a similar dose-dependent increase in cleaved caspase-3[3].

[1]:Garner TP, Lopez A, et,al. Progress in targeting the BCL-2 family of proteins. Curr Opin Chem Biol. 2017 Aug;39:133-142. doi: 10.1016/j.cbpa.2017.06.014. Epub 2017 Aug 17. PMID: 28735187; PMCID: PMC5667545.
[2]: Tseng HY, Dreyer J, et,al.Co-targeting bromodomain and extra-terminal proteins and MCL1 induces synergistic cell death in melanoma. Int J Cancer. 2020 Oct 15;147(8):2176-2189. doi: 10.1002/ijc.33000. Epub 2020 Apr 24. PMID: 32249419.
[3]: Caenepeel S, Brown SP,et,al. AMG 176, a Selective MCL1 Inhibitor, Is Effective in Hematologic Cancer Models Alone and in Combination with Established Therapies. Cancer Discov. 2018 Dec;8(12):1582-1597. doi: 10.1158/2159-8290.CD-18-0387. Epub 2018 Sep 25. Erratum in: Cancer Discov. 2019 Jul;9(7):980. PMID: 30254093.
[4]:Yi X, Sarkar A, et,al. AMG-176, an Mcl-1 Antagonist, Shows Preclinical Efficacy in Chronic Lymphocytic Leukemia. Clin Cancer Res. 2020 Jul 15;26(14):3856-3867. doi: 10.1158/1078-0432.CCR-19-1397. Epub 2020 Jan 14. PMID: 31937611; PMCID: PMC7358119.
[5]: Yi X, Jain N, et,al. Targeting Mcl-1 by AMG-176 During Ibrutinib and Venetoclax Therapy in Chronic Lymphocytic Leukemia. Front Oncol. 2022 Feb 22;12:833714. doi: 10.3389/fonc.2022.833714. PMID: 35273915; PMCID: PMC8901605.
[6]: Atene CG, Fiorcari S, et,al. Indoleamine 2, 3-Dioxygenase 1 Mediates Survival Signals in Chronic Lymphocytic Leukemia via Kynurenine/Aryl Hydrocarbon Receptor-Mediated MCL1 Modulation. Front Immunol. 2022 Mar 18;13:832263. doi: 10.3389/fimmu.2022.832263. PMID: 35371054; PMCID: PMC8971515.


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