1. Cell Cycle/DNA Damage
  2. DNA/RNA Synthesis
  3. CX-5461

CX-5461 是一种有效,口服的 rRNA 合成抑制剂。在 HCT-116,A375 和 MIA PaCa-2 细胞中抑制 RNA 聚合酶 I 驱动的 rRNA 转录,IC50 为 142,113 和 54 nM。

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CX-5461 Chemical Structure

CX-5461 Chemical Structure

CAS No. : 1138549-36-6

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Top Publications Citing Use of Products

MCE 顾客使用本产品发表的 30 篇科研文献

WB

    CX-5461 purchased from MCE. Usage Cited in: Clin Cancer Res. 2017 Nov 1;23(21):6529-6540.  [Abstract]

    Western blot analysis shows activation of the pCHK1(ser317) and pCHK2(T68), downstream substrates of ATM and ATR kinases. TP53 wild type cell lines show a subsequent activation of p21 but drug response is independent of TP53 status.

    CX-5461 purchased from MCE. Usage Cited in: Clin Cancer Res. 2017 Nov 1;23(21):6529-6540.  [Abstract]

    Western blot analysis verifying G2/M phase arrest in 6 cell lines. Treatment with IC50 dosages of CX-5461 shows an increase in expression of pCDC2(tyr15) and Cyclin-B versus untreated controls at 72 hours.

    CX-5461 purchased from MCE. Usage Cited in: Oncotarget. 2017 Oct 29;8(57):96536-96552.  [Abstract]

    Protein levels of HCMV IE (IE1:IE72, IE2:IE86) and pp65 are detected by WB analysis in untreated and pre-treated HCMV infected cells 72hpi.
    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    CX-5461 is a potent and oral rRNA synthesis inhibitor. It inhibits RNA polymerase I-driven transcription of rRNA with IC50s of 142, 113, and 54 nM in HCT-116, A375, and MIA PaCa-2 cells, respectively[1].

    IC50 & Target

    IC50: 54 nM (rRNA synthesis, MIA PaCa-2 cells), 113 nM (rRNA synthesis, A375 cells), 142 nM (rRNA synthesis, HCT-116 cells)[1]

    体外研究
    (In Vitro)

    CX-5461 is a potent and orally bioavailable inhibitor of Pol I-mediated rRNA synthesis, with IC50s of 142 nM in HCT-116, 113 nM in A375, and 54 nM in MIA PaCa-2 cells, and shows little or no effect on Pol II (IC50, ≥25 μM). CX-5461 has modest inhibition on DNA replication and protein translation. CX-5461 also exhibits broad antiproliferative activity against a panel of human cancer cell lines, with a mean EC50 of 147 nM, but has minimal effect on viability of nontransformed human cells, with EC50 values of appr 5000 nM. EC50s of CX-5461 for HCT-116, A375, and MIA PaCa-2 cell lines are 167, 58, and 74 nM, respectively. CX-5461 induces autophagy and senescence in solid tumor cancer cells, rather than apoptosis, through a p53-independent process[1]. Eμ-Myc lymphoma cells from tumor-bearing mice are exquisitely sensitive to CX-5461 with an IC50 of 27.3 nM ± 8.1 nM for Pol I transcription after 1 hr and IC50 of 5.4 nM ± 2.1 nM for cell death after 16 hr. CX-5461 activates p53 via the nucleolar stress response in Eμ-MycLymphoma Cells[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    体内研究
    (In Vivo)

    CX-5461 displays antitumor activity against human solid tumors in murine xenograft models. CX-5461 (50 mg/kg, p.o.) shows significant MIA PaCa-2 growth inhibition with TGI equal to 69% on day 31 and 79% TGI on A375 on day 32[1]. CX-5461 (50 mg/kg, p.o.) inhibits the Eμ-Myc tumor cells with 84% repression in Pol I transcription at 1 hr posttreatment in C57BL/6 mice. CX-5461 also induces a rapid reduction in tumor burden in the lymph nodes and a concomitant reduction of spleen size to within the normal range[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Clinical Trial
    分子量

    513.61

    Formula

    C27H27N7O2S

    CAS 号
    性状

    固体

    颜色

    White to yellow

    运输条件

    Room temperature in continental US; may vary elsewhere.

    储存方式
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 2 years
    -20°C 1 year
    溶解性数据
    In Vitro: 

    H2O 中的溶解度 : 55.56 mg/mL (108.18 mM; 超声助溶; 酸性条件溶解 (HCL 调节,pH≈2))

    50 mM sodium phosphate (pH 3.5) 中的溶解度 : 10 mg/mL (19.47 mM; 超声助溶)

    DMSO 中的溶解度 : < 1 mg/mL (insoluble or slightly soluble)

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 1.9470 mL 9.7350 mL 19.4700 mL
    5 mM 0.3894 mL 1.9470 mL 3.8940 mL
    查看完整储备液配制表

    * 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
    储备液的保存方式和期限:-80°C, 2 years; -20°C, 1 year。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

    * 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

    • 摩尔计算器

    • 稀释计算器

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    质量
    =
    浓度
    ×
    体积
    ×
    分子量 *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    浓度 (start)

    C1

    ×
    体积 (start)

    V1

    =
    浓度 (final)

    C2

    ×
    体积 (final)

    V2

    动物溶解方案计算器
    请输入动物实验的基本信息:

    给药剂量

    mg/kg

    动物的平均体重

    g

    每只动物的给药体积

    μL

    动物数量

    由于实验过程有损耗,建议您多配一只动物的量
    计算结果
    工作液所需浓度 : mg/mL
    该产品水溶性佳,请具体参考实测 水 / PBS / Saline 中的溶解度数据。
    您所需的储备液浓度超过该产品的实测溶解度,如有需要,请与 MCE 中国技术支持联系。
    纯度 & 产品资料

    纯度: 99.44%

    参考文献
    Cell Assay
    [1]

    Cells are plated on 96-well plates and treated the next day with dose response of CX-5461 for 96 hours. Cell viability is determined using Alamar Blue and CyQUANT assays[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Administration
    [1]

    Mice[1]
    Animal experiments are performed with 5- to 6-week-old female athymic (NCr nu/nu fisol) mice of Balb/c. Mice are inoculated with athymic (NCr nu/nu fisol) mice in 100 μL of cell suspension subcutaneously in the right flank. Tumor measurements are performed by caliper analysis, and tumor volume is calculated using the formula (l×w2)/2, where w=width and l=length in mm of the tumor. established tumors (appr 110-120 mm3) are randomized into vehicle (50 mM NaH2PO4, pH 4.5), NSC 613327, or CX-5461 treatment groups. Tumor growth inhibition (TGI) is determined on the last day of study according to the formula: TGI (%)=[100 − (VfD− ViD)/ (VfV − ViV) × 100], where ViV is the initial mean tumor volume in vehicle-treated group, VfV is the final mean tumor volume in vehicle-treated group, ViD is the initial mean tumor volume in drug-treated group, and VfD is the final mean tumor volume in drug-treated group.

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    参考文献

    完整储备液配制表

    * 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
    储备液的保存方式和期限:-80°C, 2 years; -20°C, 1 year。-80°C储存时,请在2年内使用, -20°C储存时,请在1年内使用。

    可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
    50 mM sodium phosphate (pH 3.5) / H2O 1 mM 1.9470 mL 9.7350 mL 19.4700 mL 48.6751 mL
    5 mM 0.3894 mL 1.9470 mL 3.8940 mL 9.7350 mL
    10 mM 0.1947 mL 0.9735 mL 1.9470 mL 4.8675 mL
    15 mM 0.1298 mL 0.6490 mL 1.2980 mL 3.2450 mL
    H2O 20 mM 0.0974 mL 0.4868 mL 0.9735 mL 2.4338 mL
    25 mM 0.0779 mL 0.3894 mL 0.7788 mL 1.9470 mL
    30 mM 0.0649 mL 0.3245 mL 0.6490 mL 1.6225 mL
    40 mM 0.0487 mL 0.2434 mL 0.4868 mL 1.2169 mL
    50 mM 0.0389 mL 0.1947 mL 0.3894 mL 0.9735 mL
    60 mM 0.0325 mL 0.1623 mL 0.3245 mL 0.8113 mL
    80 mM 0.0243 mL 0.1217 mL 0.2434 mL 0.6084 mL
    100 mM 0.0195 mL 0.0974 mL 0.1947 mL 0.4868 mL

    * 备注:如您选择水作为储备液,请稀释至工作液后,再用 0.22 μm 的滤膜过滤除菌后使用。

    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    产品名称:
    CX-5461
    目录号:
    HY-13323
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