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Ralimetinib dimesylate (Synonyms: LY2228820 dimesylate) 纯度: 99.52%
Ralimetinib dimesylate (LY2228820 dimesylate) 是一种选择性,ATP竞争性的 p38 MAPK α/β 抑制剂,IC50 分别为5.3 和 3.2 nM。
Ralimetinib dimesylate Chemical Structure
CAS No. : 862507-23-1
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10 mM * 1 mL in DMSO | ¥1213 | In-stock | |
5 mg | ¥900 | In-stock | |
10 mg | ¥1600 | In-stock | |
50 mg | ¥5800 | In-stock | |
100 mg | ¥9500 | In-stock | |
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生物活性 |
Ralimetinib dimesylate (LY2228820 dimesylate) is a selective, ATP-competitive inhibitor of p38 MAPK α/β with IC50s of 5.3 and 3.2 nM, respectively. Ralimetinib (LY2228820) selectively inhibits phosphorylation of MK2 (Thr334), with no effect on phosphorylation of p38a MAPK, JNK, ERK1/2, c-Jun, ATF2, or c-Myc. |
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IC50 & Target[3] |
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体外研究 (In Vitro) |
Ralimetinib dimesylate inhibits p38α, as well as the level of phosphoMAPKAPK-2 (pMK2) in RAW 264.7 cells, with IC50 values of 7 nM and 34.3 nM, respectively. Furthermore, Ralimetinib dimesylate inhibits lipopolysaccharide (LPS)-induced TNFα formation in murine peritoneal macrophages, with IC50 of 5.2 nM[1]. In multiple myeloma (MM) cells, including INA6, RPMI-8226, U266, and RPMI-Dox40, Ralimetinib dimesylate (LY2228820) (200 nM-800 nM) significantly blocks p38MAPK signaling, as revealed by its inhibition on phosphorylation of HSP27, a downstream target of p38MAPK, without affecting the expression level of HSP27. Ralimetinib dimesylate (200 nM-400 nM) enhances bortezomib-induced cytotoxicity and apoptosis, but Ralimetinib dimesylate alone doesn’t inhibit the growth of MM.1S cells. Ralimetinib dimesylate (200 nM-800 nM) also inhibits secretion of IL-6 and MIP-1α in long-term BM stromal cells (LT-BMSCs), BM mononuclear cells (BMMNCs), peripheral blood (PB) CD138+, CD138– or PB CD14+ cells. Ralimetinib dimesylate (400 nM-800 nM) also blocks osteoclastogenesis from CD14+ cells[2]. 上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only. |
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体内研究 (In Vivo) |
In LPS-induced mice, Ralimetinib dimesylate effectively inhibits the formation of TNFα with a threshold minimum 50% effective dose (TMED50) less than 1 mg/kg. In a rat model of collagen-inducedarthritis (CIA), Ralimetinib dimesylate displays potent effects on paw swelling, bone erosion, and cartilage destruction, with a threshold minimum 50% effective dose (TMED50)of 1.5 mg/kg[1]. Ralimetinib dimesylate inhibits tumor phospho-MK2 in a dose-dependent manner (TED50=1.95 mg/kg, TED70=11.17 mg/kg) in mice implanted with B16-F10 melanoma. Ralimetinib dimesylate inhibits MK2 phosphorylation: mouse in vivo TED50=1.01 mg/kg (compound exposure approximately 100 nM) and human ex vivo IC50=0.12 μM with either mouse or human PBMC[3]. 上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only. |
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Clinical Trial |
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分子量 |
612.74 |
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Formula |
C26H37FN6O6S2 |
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CAS 号 |
862507-23-1 |
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运输条件 |
Room temperature in continental US; may vary elsewhere. |
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储存方式 |
4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
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溶解性数据 |
In Vitro:
DMSO : 61 mg/mL (99.55 mM; Need ultrasonic and warming) 配制储备液
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请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。 In Vivo:
请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂: ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
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参考文献 |
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Kinase Assay [1] |
Inhibition of p38α is determined using recombinant human p38α in a standard filter binding protocol using ATP[γ-33P] and EGFR 21-mer peptide as substrate. Functional inhibition of TNFα in murine peritoneal macrophages is determined using LPS stimulation in the presence of Ralimetinib. To assess p38α activity in cells more directly, RAW 264.7 cells are treated with Ralimetinib and then stimulated with anisomycin. The level of p38α activity is detected using a phosphoMAPKAPK-2 (pMK2) (Thr 334) antibody which reacts with a residue specifically phosphorylated by p38α. 上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only. |
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Animal Administration [3] |
Murine B16-F10 melanoma cells are cultured in Dulbecco’s Modified Eagle Medium supplemented with l-glutamine, high glucose and 10% FBS (GIBCO 11965-092). C57/bl6 mice are implanted in the rear flank with B16-F10 cells (2×106), and when tumors reach approximately 200 mm3 in size, are dosed orally with Ralimetinib dimesylate in 1% carboxymethylcellulose/0.25% Tween 80. Two hours postdose, tumors are excised, homogenized, and lysed for Western blot analysis. MK2 phosphorylation (p-Thr334), normalized to total glyceraldehyde-3-phosphate dehydrogenase, is quantified by chemiluminescent detection. The 50% or 70% threshold effective dose (TED50 and TED70, respectively) is calculated to approximate effective dose ranges for testing of Ralimetinib dimesylate in xenograft models, that is, where significant target inhibition is observed. The TED50 or TED70 is defined as the dose where a statistically significant effect is achieved, and there is at least 50% or 70% inhibition, respectively, compared with vehicle control. 上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only. |
参考文献 |
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