1. Cell Cycle/DNA Damage
    Metabolic Enzyme/Protease
  2. Microtubule/Tubulin
    Reactive Oxygen Species
  3. Lexibulin

Lexibulin (Synonyms: CYT-997)

目录号: HY-10498 纯度: 98.08%

Lexibulin (CYT-997) 是微管蛋白聚集强效抑制剂,对多种癌细胞的 IC50 值为 10-100n M,体外体内具有高效的细胞毒性和血管增生阻断作用。Lexibulin 可诱导细胞凋亡 (apoptosis),并诱导 GC 细胞中的线粒体 ROS 生成。

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Lexibulin Chemical Structure

Lexibulin Chemical Structure

CAS No. : 917111-44-5

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥1045
5 mg ¥950
10 mg ¥1700
50 mg ¥6100
100 mg   询价  
200 mg   询价  

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Lexibulin (CYT-997) is a potent and orally active tubulin polymerisation inhibitor with IC50s of 10-100 nM in cancer cell lines; with potent cytotoxic and vascular disrupting activity in vitro and in vivo[1][2]. Lexibulin induces cell apoptosis and induces mitochondrial ROS generation in GC cells[3].

IC50 & Target

IC50 value: 10-100 nM(cell assay)[1]

(In Vitro)

Lexibulin (CYT-997) prevents the in vitro polymerization of tubulin with an IC50 of ~3 μmol/L (compared with the half-maximal inhibitory concentration of 2 μmol/L for colchicine under identical conditions) as determined using the conventional turbidimetric assay for tubulin polymerization. Lexibulin is also capable of reversibly disrupting the microtubule network in cells, visualized using fluorescence microscopy. Thus, treatment of A549 cells with Lexibulin (1 μM) lead to the rapid reorganization of microtubules, including the destruction of the existing microtubule network and accumulation of tubulin in plaques within the cytoplasm of some cells. After 24 hours, major alterations in cell morphology are evident, including loss of adhesion and cell rounding. The effect of 1 hour of treatment with Lexibulin is reversible and cells rapidly recovered their normal microtubule architecture. Taken together, the data indicates that Lexibulin belongs to the class of anticancer agents that disrupt, rather than stabilize, tubulin-containing structures. Although vehicle-treated cells show 15% and 19% in G2-M phase at 15 and 24 hours (respectively), cells treated with Lexibulin (1 μM) had 38% and 43% of cells in G2-M at the same time points. Furthermore, at 24 hours post-Lexibulin treatment, only 66% of total cells are in the G1, S, and G2-M phases, which suggests that cells blocked at the G2-M boundary do not exit back to G1, as in the normal cell cycle, but most likely are driven towards apoptosis and cell death[1]. Consistent with the disruption of cellular tubulin, Lexibulin potently inhibits proliferation, induces cell cycle arrest and most importantly apoptosis of both human myeloma cell lines (HMCLs) and primary MM cells[2].

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

(In Vivo)

iIn a xenograft model using the human prostate cancer cell line PC3, oral dosing of Lexibulin (CYT-997) is initiated 13 days after cell implantation by which time palpable tumors were evident. A dose-dependent inhibition of tumor growth was apparent with Lexibulin (CYT-997), which at the highest dose was equivalent to parenterally administered paclitaxel. A single dose of Lexibulin (CYT-997) (7.5 mg/kg i.p.) clearly decreased blood flow in liver metastases, and a significant reduction in blood flow was present 6 hours postdose[1]. Lexibulin (CYT-997) treatment (15 mg/kg/day) significantly prolongs the survival in a murine model of aggressive systemic myelomatosis[2].

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

Clinical Trial





Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
In Vitro: 

DMSO : ≥ 100 mg/mL (230.13 mM)

* "≥" means soluble, but saturation unknown.

浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.3013 mL 11.5067 mL 23.0134 mL
5 mM 0.4603 mL 2.3013 mL 4.6027 mL
10 mM 0.2301 mL 1.1507 mL 2.3013 mL

储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

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

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (5.75 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.75 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液
  • 2.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (5.75 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.75 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 MCE 网站选购。
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