Lonafarnib(Synonyms: Sch66336)

上海金畔生物科技有限公司为生命科学和医药研发人员提供生物活性分子抑制剂、激动剂、特异性抑制剂、化合物库、重组蛋白,专注于信号通路和疾病研究领域。

Lonafarnib (Synonyms: Sch66336) 纯度: 98.67%

Lonafarnib (Sch66336) 是一种有效的,具有口服活性的法尼基蛋白转移酶 (FPTase) 抑制剂,作用于 H-ras,K-ras 和 N-ras,IC50 分别为 1.9 nM,5.2 nM 和 2.8 nM。Lonafarnib 具有抗肝炎三角洲病毒 (HDV) 的活性。

Lonafarnib(Synonyms: Sch66336)

Lonafarnib Chemical Structure

CAS No. : 193275-84-2

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生物活性

Lonafarnib (Sch66336) is a potent and orally active farnesyl transferase (FTase) inhibitor. Lonafarnib inhibits the activities of H-ras, K-ras and N-ras with IC50 values of 1.9 nM, 5.2 nM and 2.8 nM, respectively. Lonafarnib also has anti-hepatitis delta virus (HDV) activities.

IC50 & Target

IC50: 1.9 nM (H-ras), 5.2 nM (K-ras), 2.8 nM (N-ras)[1]

体外研究
(In Vitro)

Lonafarnib (Sch66336) potently inhibits Ha-Ras processing in whole cells and blocks the trans formed growth properties of fibroblasts and human tumor cell lines expressing activated Ki-Ras proteins[1]. All treatment groups containing Lonafarnib (10 µM) show a significantly higher level of unfarnesylated H-Ras (116-137%) compared to control treatment[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.

体内研究
(In Vivo)

In mouse, rat, and monkey systems, Lonafarnib (Sch66336) has excellent oral bioavailability and pharmacokinetic properties. In the nude mouse, Lonafarnib demonstrates potent oral activity in a wide array of human tumor xenograft models including tumors of colon, lung, pancreas, prostate, and urinary bladder origin[1]. Lonafarnib alone (80 mg/kg by oral gavage, once daily) has limited ability to inhibit orthotopic U87 tumors compared to vehicle treated control animals (T/C of 0.67). The combination of XRT/Tem (2.5Gy/day for 2 days; 5 mg/kg by oral gavage 90 min prior to XRT) is designed to produce modest tumor growth inhibition in vivo(T/C of 0.42). Concurrent Lonafarnib/XRT/Tem (Lonafarnib 80 mg/kg by oral gavage, once daily, XRT 2.5Gy/day for 2 days, and Tem 5 mg/kg by oral gavage 90 min prior to XRT) provides the strongest growth reduction (T/C of 0.02) and is significantly more effective than XRT/Tem (p<0.04), with the majority of animals demonstrating a decrease in tumor volume (p<0.05) after two weeks and persisting after 4 weeks (p<0.05)[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.

Clinical Trial

分子量

638.82

Formula

C27H31Br2ClN4O2

CAS 号

193275-84-2

中文名称

洛那法尼

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 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 50 mg/mL (78.27 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.5654 mL 7.8269 mL 15.6539 mL
5 mM 0.3131 mL 1.5654 mL 3.1308 mL
10 mM 0.1565 mL 0.7827 mL 1.5654 mL

*

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, 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
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

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

    Solubility: ≥ 2.5 mg/mL (3.91 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (3.91 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% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (3.91 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (3.91 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 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

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

    Solubility: ≥ 2.5 mg/mL (3.91 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (3.91 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 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Liu M, et al. Antitumor activity of SCH 66336, an orally bioavailable tricyclic inhibitor of farnesyl protein transferase, in human tumor xenograft models and wap-ras transgenic mice. Cancer Res. 1998 Nov 1;58(21):4947-56.

    [2]. Chaponis D, et al. Lonafarnib (SCH66336) improves the activity of temozolomide and radiation for orthotopic malignant gliomas. J Neurooncol. 2011 Aug;104(1):179-89.

    [3]. Koh C,et al. Oral prenylation inhibition with lonafarnib in chronic hepatitis D infection: a proof-of-concept randomised, double-blind, placebo-controlled phase 2A trial. Lancet Infect Dis. 2015 Oct;15(10):1167-1174.

Kinase Assay
[1]

FPTactivity is determined by measuring the transfer of [3H]farnesyl from [3H]farnesyl PPi to trichloroacetic acid-precipitable Ha-Ras-CVLS. GGPT-1 activity is similarly determined using [3H]geranylgeranyl diphosphate and Ha-Ras-CVLL as substrates[1].

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.

Cell Assay
[2]

CellTiter96 Aqueous Assay kit is used. Assays are performed with 5000 cells/well in a 96-well tissue culture plate. Plates are irradiated 24 h after drug exposure and assayed 96 h after XRT, with fresh drug treatments applied each day. For quantification, dye is added directly to each well, plates are washed as per the manufactures recommendation and cell viability determined by optical density. Significance is analyzed using the Student’s T-test. 12-well plates are seeded with 100,000 cells/well. Drug treatments are initiated 24 h after plating, and media is replaced every 24 h for a total of 96 h of drug exposure. Plates are irradiated after 24 h of drug exposure. Cells from triplicate sets of treatments are trypsonized and counted 48 h after irradation using a Z1 series coulter counter, and compared to cell numbers from wells counted on Day 1 (the day drug treatment is initiated). Proliferation after drug treatments are normalized to the control wells and expressed as % of the control treatment. Significance is analyzed using the Student’s T-test[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.

Animal Administration
[2]

Mice[2]
Lonafarnib is given once daily at 80mg/kg with twice weekly weightings to ensure accurate dosing. Temozolomide (Tem) is given by gavage at 5 mg/kg 90 min prior to XRT. For irradiation, anesthetized mice are placed in a lead shielding apparatus which limited radiation exposure to the head only. Treatment (2.5Gy/day for two days) is delivered using a Gammacell 40 irradiator delivering 100 rads/min. For in vivo combination experiments, suboptimal doses of XRT/Tem are selected to permit identification of synergistic effects of Lonafarnib.

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
  • [1]. Liu M, et al. Antitumor activity of SCH 66336, an orally bioavailable tricyclic inhibitor of farnesyl protein transferase, in human tumor xenograft models and wap-ras transgenic mice. Cancer Res. 1998 Nov 1;58(21):4947-56.

    [2]. Chaponis D, et al. Lonafarnib (SCH66336) improves the activity of temozolomide and radiation for orthotopic malignant gliomas. J Neurooncol. 2011 Aug;104(1):179-89.

    [3]. Koh C,et al. Oral prenylation inhibition with lonafarnib in chronic hepatitis D infection: a proof-of-concept randomised, double-blind, placebo-controlled phase 2A trial. Lancet Infect Dis. 2015 Oct;15(10):1167-1174.

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