c-MET (IC50 = 0.13 nM)

体外活性：INCB28060 表现出皮摩尔酶效，并且对 c-MET 具有高度特异性，其选择性比一大组人类激酶高 10,000 倍以上。 INCB28060 抑制癌细胞中的人 c-MET 磷酸化和 c-MET 介导的信号传导。 INCB28060 抑制 c-MET 依赖性细胞增殖和存活，并防止锚定非依赖性癌细胞生长和细胞迁移。激酶测定：测定缓冲液含有 50 mM Tris-HCl、10 mM MgCl2、100 mM NaCl、0.1 mg/ml BSA、5mM DTT，pH 7.8。对于 HTS，将溶解在 DMSO 中的 0.8 μL 5 mM INCB28060 点在 384 孔板上。 DMSO 滴定表明溶剂的最大耐受浓度为 4%。为了测量 IC50，INCB28060 板通过 3 倍和 11 点连续稀释来制备。将 0.8 μL INCB28060 的 DMSO 溶液从 INCB28060 板转移至测定板。 DMSO 的终浓度为 2%。在测定缓冲液中制备 8 nM 非磷酸化 c-Met 或 0.5 nM 磷酸化 c-Met 溶液。将溶解在 DMSO 中的肽底物生物素-EQEDEPEGDYFEWLE-酰胺的 1 mM 储备液在含有 400 μM ATP（未磷酸化 c-Met）或 160 uM ATP（磷酸化 c-Met）的测定缓冲液中稀释至 1 μM。将 20 μL 体积的酶溶液（或酶空白的测定缓冲液）添加到每个板的相应孔中，然后添加 20 μL/孔的底物溶液以启动反应。将板避光并在 25°C 下孵育 90 分钟。通过添加 20 μL 含有 45 mM EDTA、50 mM Tris-HCl、50 mM NaCl、0.4 mg/ml BSA、200 nM SA-APC 和 3 nM EUPy20 的溶液来终止反应。将板在室温下孵育 15-30 分钟，并在 Perkin Elmer Fusion α-FP 仪器上测量 HTRF（均质时间分辨荧光）。使用的 HTRF 程序设置如下：初级激励滤波器 330/30，初级窗口：200 uSec，初级延迟：50 uSec，闪烁次数：15，良好读取时间：2000。 细胞测定：H441 细胞接种在 RPMI- 1640培养基含有10% FBS并生长至完全融合。通过使用 P200 移液器吸头刮擦细胞来引入间隙。然后用 50 ng/mL 重组人 HGF 刺激细胞，以在存在不同浓度的 INCB28060 的情况下诱导细胞跨间隙迁移。过夜孵育后，拍摄代表性照片并进行细胞迁移抑制的半定性评估。

INCB28060在c-MET依赖的小鼠肿瘤模型中显示出很强的抗肿瘤活性[1]
为了评估INCB28060的体内活性，我们使用了S114细胞衍生的小鼠肿瘤模型。由于S114细胞同时表达人c-MET和HGF，因此这些细胞的肿瘤生长依赖于c-MET信号。为了确定控制c-MET磷酸化所需的INCB28060的最小剂量，我们对小鼠口服增加剂量的INCB28060，并在30分钟后测量肿瘤中的磷酸化c-MET水平。如图4A所示，0.03 mg/kg INCB28060是测试的最低剂量，可抑制约50%的c-MET磷酸化。剂量递增以剂量依赖的方式影响磷酸化c-MET，单次剂量为0.3mg/kg或更高可导致90%以上的抑制。为了进一步表征INCB28060随时间的影响，选择了3mg/kg的单次剂量。在7小时的测量时间点内，磷酸化c-MET的抑制率超过90%（图4B），这与同一时间段内磷酸化-c-MET的化合物暴露量超过蛋白质调整IC90（约71 nmol/L）是一致的（图4B）。因此，INCB28060的活性是剂量依赖性的，并且由于体内同一时间段的有效药物暴露水平而随时间持续。用MKN-45人癌症细胞衍生的小鼠肿瘤模型观察到类似的结果，该模型由c-MET激活驱动，作为c-MET扩增的结果（数据未显示）。

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INCB28060在c-MET依赖性小鼠肿瘤模型中显示出很强的抗肿瘤活性，即使口服0.03 mg/kg INCB28060也会引起约50%的c-MET磷酸化抑制。在荷瘤小鼠中观察到肿瘤生长的剂量依赖性抑制。

测定缓冲液的成分如下：pH 7.8、50 mM Tris-HCl、10 mM MgCl₂、100 mM NaCl、0.1 mg/ml BSA 和 5 mM DTT。在 HTS 的 384 孔板上点样的是溶解在 DMSO 中的 0.8 μL 5 mM INCB28060。根据DMSO滴定，4%的溶剂浓度是可以耐受的最高浓度。 INCB28060 板通过三个和十一个点的连续稀释来制备，以测量 IC50。从 INCB28060 板中转移 0.8 μL INCB28060 的 DMSO 溶液。 DMSO 的终浓度为 2%。在测定缓冲液中，制备 0.5 nM 磷酸化 c-Met 或 8 nM 非磷酸化 c-Met 溶液。在含有 400 μM ATP（未磷酸化 c-Met）或 160 uM ATP（磷酸化 c-Met）的测定缓冲液中，将溶解在 DMSO 中的肽底物生物素-EQEDEPEGDYFEWLE-酰胺的 1 mM 储备液稀释至 1 μM。要开始反应，向每个板的相应孔中添加 20 μL 体积的酶溶液（或酶空白的测定缓冲液）后，每孔添加 20 μL 底物溶液。将板在 25°C 避光条件下孵育 90 分钟。为了终止反应，引入 20 μL 包含 45 mM EDTA、50 mM Tris-HCl、50 mM NaCl、0.4 mg/ml BSA、200 nM SA-APC 和 3 nM EUPy20 的混合物。将板在室温下孵育 15-30 分钟后，Perkin Elmer Fusion α-FP 仪器测量均质时间分辨荧光 (HTRF)。使用以下 HTRF 程序设置：330/30 主激励滤波器，主窗口 200 uSec，主延迟 50 uSec，总共 15 次闪烁。读板时间：2000

在含有 10% FBS 的 RPMI-1640 培养基中，接种 H441 细胞并生长至完全汇合。使用 P200 移液器吸头刮擦细胞以形成间隙。接下来，在存在不同浓度的 INCB28060 的情况下，用 50 ng/mL 重组人 HGF 刺激细胞以诱导跨越间隙的迁移。经过过夜的孵育期后，对细胞迁移的抑制进行半定性评估并拍摄代表性照片。

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细胞活力测定[1]
针对单个细胞系预先确定了存活率测定中使用的最佳细胞密度。为了测定化合物的效力，将细胞以适当的密度接种到96孔微孔板中，培养基中含有1%至2%的FBS，并补充了INCB28060的系列稀释液，最终体积为每孔100μL。孵育72小时后，向每个孔中加入24μL CellTiter 96 AQueous One溶液，并在37°C的孵化器中孵育2小时。使用微孔板读数器在490nm下在线性范围内测量光密度，在650nm下进行波长校正。使用GraphPad Prism软件计算IC50值。

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软琼脂集落形成试验[1]
在不同浓度的50 ng/mL重组人HGF和INCB28060存在或不存在的情况下，在6孔板中以足够的密度制备U-87MG或H441细胞，该板与0.5 mL顶层琼脂混合，顶层琼脂在适当的培养基中含有0.3%琼脂糖，并补充有1%或10%FBS。将细胞均匀地放置在1mL在培养基中含有0.6%琼脂糖的固化基层琼脂上。将培养板在37°C的湿度为5%CO2的培养箱中培养。每周用含有适当浓度人HGF和INCB28060的顶层琼脂给细胞喂食一次。2至3周后拍摄代表性照片时，评估菌落的数量和大小。

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细胞迁移试验[1]
将H441细胞接种在含有10%FBS的RPMI-1640培养基中，并生长至完全融合。通过用P200移液管尖端刮擦细胞来引入间隙。然后，在不同浓度的INCB28060存在下，用50 ng/mL重组人HGF刺激细胞，诱导其穿过间隙迁移。孵育过夜后，拍摄代表性照片，并对细胞迁移的抑制进行半定性评估。

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细胞凋亡测定[1]
将细胞接种在96孔板中，在含有0.5%FBS的培养基中生长过夜。然后用不同浓度的INCB28060处理细胞24小时。根据制造商的说明，使用基于DNA片段的细胞死亡检测ELISAplus试剂盒测量细胞凋亡。为了测量PARP切割，细胞在10cm培养皿中生长，并如上所述用INCB28060进行类似处理。然后制备蛋白质提取物，并使用兔抗切割PARP（Asp214）抗体进行蛋白质印迹分析。

Eight-week-old female Balb/c nu/nu mice (Charles River) are inoculated subcutaneously with 4 × 10⁶ tumor cells (S114 model) or with 5 × 10⁶ tumor cells (U-87MG glioblastoma model).
3, 10, 30 mg/kg
INCB28060 is orally dosed, twice each day.

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Efficacy studies[1]
Tumor-bearing mice were dosed orally, twice each day with 1, 3, 10, or 30 mg/kg of free base INCB28060 reconstituted in 5% DMAC in 0.5% methylcellulose for up to 2 weeks. Body weights were monitored throughout the study as a gross measure of toxicity/morbidity. Tumor growth inhibition, expressed in percent, was calculated using the formula: (1 − [(volume (treated)/volume (vehicle)]) × 100. Pharmacodynamic analysis[1]
For pharmacodynamic analysis, S114 tumor–bearing mice were monitored for tumor growth and then randomized into groups of 3 with average tumor sizes of approximately 300 to 500 mm3. For time course studies, mice were given a single oral dose of 3 mg/kg INCB28060 reconstituted in 5% DMAC in 0.5% methylcellulose and tumors were harvested at the indicated time points. For dose escalation studies, mice were given a single oral dose of INCB28060 at 0.03, 0.1, 0.3, 1, 3, or 10 mg/kg reconstituted in 5% DMAC in 0.5% methylcellulose and tumors were harvested 30 minutes after dosing. All tumors were processed for the determination of phospho-c-Met levels using the Human Phospho-HGFR/c-Met kit. The plasma concentration of INCB28060 was determined by LC/MS/MS analysis following retro-orbital or cardiac puncture blood collection.

Absorption
The oral bioavailability of capmatinib is estimated to be >70%. Following oral administration, maximum plasma concentrations are achieved within 1 to 2 hours (Tmax). Co-administration with a high-fat meal increased capmatinib AUC by 46% with no change in Cmax (as compared to fasted conditions), and co-administration with a low-fat meal had no clinically meaningful effects on exposure.

Route of Elimination
Following oral administration of radiolabeled capmatinib, approximately 78% of the radioactivity is recovered in feces, of which ~42% is unchanged parent drug, and 22% is recovered in the urine, of which a negligible amount remains unchanged parent drug.

Volume of Distribution
The apparent volume of distribution at steady-state is 164 L.

Clearance
The mean apparent clearance of capmatinib at steady-state is 24 L/h.

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Metabolism / Metabolites
Capmatinib undergoes metabolism primarily via CYP3A4 and aldehyde oxidase. Specific biotransformation pathways and metabolic products have yet to be elucidated.

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Biological Half-Life
The elimination half-life is 6.5 hours.

Hepatotoxicity
In the prelicensure clinical trials of capmatinib in patients with solid tumors harboring MET mutations, liver test abnormalities were frequent although usually self-limited and mild. Some degree of ALT elevations arose in 39% of capmatinib treated patients and were above 5 times the upper limit of normal (ULN) in 7%. In these trials that enrolled 373 patients, capmatinib was discontinued early due to increased AST or ALT in only 1% of patients. The liver test abnormalities had a median onset of 2 months after initiation of therapy. While serum aminotransferase elevations were occasionally quite high (5 to 20 times upper limit of normal), there were no accompanying elevations in serum bilirubin and no patient developed clinically apparent liver injury with jaundice. The product label for capmatinib recommends monitoring for routine liver tests before, at 2 week intervals during the first 3 months of therapy, and monthly thereafter as clinically indicated.
Likelihood score: E* (unproven but suspected rare cause of clinically apparent liver injury).

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Effects During Pregnancy and Lactation
◉ Summary of Use during Lactation
No information is available on the clinical use of capmatinib during breastfeeding. Because capmatinib is 96% bound to plasma proteins, the amount in milk is likely to be low. The manufacturer recommends that breastfeeding be discontinued during capmatinib therapy and for 1 week after the last dose.

◉ Effects in Breastfed Infants
Relevant published information was not found as of the revision date.

◉ Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date. Plasma protein binding is approximately 96% and is independent of drug serum concentration.

[1]. Clin Cancer Res . 2011 Nov 15;17(22):7127-38.

[2]. BMC Res Notes . 2019 Mar 11;12(1):125.

Capmatinib is a small molecule kinase inhibitor targeted against c-Met (a.k.a. hepatocyte growth factor receptor [HGFR]), a receptor tyrosine kinase that, in healthy humans, activates signaling cascades involved in organ regeneration and tissue repair. Aberrant c-Met activation - via mutations, amplification, and/or overexpression - is known to occur in many types of cancer, and leads to overactivation of multiple downstream signaling pathways such as STAT3, PI3K/ATK, and RAS/MAPK. Mutations in MET have been detected in non-small cell lung cancer (NSCLC), and the prevalence of MET amplification in epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI)-naive patients with NSCLC has been reported to be 1.4% - 21%. This co-occurrence has made c-Met a desirable target in the treatment of NSCLC. Manufactured by Novartis and marketed under the brand name Tabrecta, capmatinib was granted accelerated approval by the FDA on May 6, 2020, for the treatment of NSCLC in patients whose tumors have a mutation that leads to mesenchymal-epithelial transition (MET) exon 14 skipping. The presence of the mutation must be confirmed by an FDA-approved test, such as the FoundationOne CDx assay (manufactured by Foundation Medicine, Inc.), which was approved by the FDA on the same day. As this indication was granted under an accelerated approval, its continued approval is contingent upon verification of capmatinib's benefit in confirmatory trials. Capmatinib was approved by Health Canada on June 8, 2022.

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Capmatinib is a Kinase Inhibitor. The mechanism of action of capmatinib is as a Mesenchymal Epithelial Transition Inhibitor, and Cytochrome P450 1A2 Inhibitor, and P-Glycoprotein Inhibitor, and Breast Cancer Resistance Protein Inhibitor, and Multidrug and Toxin Extrusion Transporter 1 Inhibitor, and Multidrug and Toxin Extrusion Transporter 2 K Inhibitor.
Capmatinib is an orally available, small molecule inhibitor of the mesenchymal-epithelial transition (MET) factor tyrosine kinase receptor that is used is selected patients with non-small cell lung cancer (NSCLC). Serum aminotransferase elevations are common during therapy with capmatinib, but it has not been linked to instances of clinically apparent liver injury with jaundice.

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Drug Indication
In the US, capmatinib is indicated for the treatment of adult patients with metastatic non-small cell lung cancer (NSCLC) whose tumors have a mutation that leads to mesenchymal-epithelial transition (MET) exon 14 skipping as detected by an FDA-approved test. Capmatinib is approved to treat adults with locally advanced unresectable or metastatic non-small cell lung cancer (NSCLC) with MET exon 14 skipping alterations in Canada.

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Tabrecta as monotherapy is indicated for the treatment of adult patients with advanced non small cell lung cancer (NSCLC) harbouring alterations leading to mesenchymal epithelial transition factor gene exon 14 (METex14) skipping, who require systemic therapy following prior treatment with immunotherapy and/or platinum based chemotherapy.

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Pharmacodynamics
Capmatinib inhibits the overactivity of c-Met, a receptor tyrosine kinase encoded by the _MET_ proto-oncogene. Mutations in _MET_ are involved in the proliferation of many cancers, including non-small cell lung cancer (NSCLC). Capmatinib may cause photosensitivity reactions in patients following ultraviolet (UV) exposure - patients undergoing therapy with capmatinib should be advised to use sunscreen and protective clothing to limit exposure to UV radiation. Instances of interstitial lung disease/pneumonitis, which can be fatal, occurred in patients being treated with capmatinib. Patients presenting with signs or symptoms of lung disease (e.g. cough, dyspnea, fever) should have capmatinib immediately withheld, and capmatinib should be permanently discontinued if no other feasible causes of the lung-related symptoms are identified.

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Mechanism of Action
Aberrant activation of c-Met has been documented in many cancers, including non-small cell lung cancer (NSCLC). Mutations that result in the skipping of _MET_ exon 14 lead to the formation of a mutant c-Met with a missing regulatory domain - these mutant proteins have a reduced ability to negatively regulate, leading to a pathological increase in their downstream activity. Capmatinib inhibits the phosphorylation of both wild-type and mutant variants of c-Met triggered by the binding of its endogenous ligand, hepatocyte growth factor - in doing so, it prevents c-Met-mediated phosphorylation of downstream signaling proteins, as well as the proliferation and survival of c-Met-dependent tumor cells.

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Purpose: The c-MET receptor tyrosine kinase plays important roles in the formation, progression, and dissemination of human cancer and presents an attractive therapeutic target. This study describes the preclinical characterization of INCB28060, a novel inhibitor of c-MET kinase.
Experimental design: Studies were conducted using a series of in vitro and in vivo biochemical and biological experiments.
Results: INCB28060 exhibits picomolar enzymatic potency and is highly specific for c-MET with more than 10,000-fold selectivity over a large panel of human kinases. This inhibitor potently blocks c-MET phosphorylation and activation of its key downstream effectors in c-MET-dependent tumor cell lines. As a result, INCB28060 potently inhibits c-MET-dependent tumor cell proliferation and migration and effectively induces apoptosis in vitro. Oral dosing of INCB28060 results in time- and dose-dependent inhibition of c-MET phosphorylation and tumor growth in c-MET-driven mouse tumor models, and the inhibitor is well tolerated at doses that achieve complete tumor inhibition. In a further exploration of potential interactions between c-MET and other signaling pathways, we found that activated c-MET positively regulates the activity of epidermal growth factor receptors (EGFR) and HER-3, as well as expression of their ligands. These effects are reversed with INCB28060 treatment. Finally, we confirmed that circulating hepatocyte growth factor levels are significantly elevated in patients with various cancers.
Conclusions: Activated c-MET has pleiotropic effects on multiple cancer-promoting signaling pathways and may play a critical role in driving tumor cell growth and survival. INCB28060 is a potent and selective c-MET kinase inhibitor that may have therapeutic potential in cancer treatment.[1]

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Objective: Gastric cancer is more open related to genetic predisposition. In our RNA sequencing study on gastric cancer patients, Runt-related transcription factor-3 (RUNX3) expression was significantly down-regulated in gastric cancer. We showed that decreased levels of RUNX3 are significantly associated with c-MET (r = - 0.4216, P = 0.0130). In addition, c-MET expression is a candidate for targeted therapy in gastric cancer. Therefore, in the present study, the anti-cancer effects of the c-MET inhibitor on gastric cancer cells from positive or negative for c-MET amplification were evaluated.
Results: INC280 treatment inhibits growth of a c-MET-amplified MKN45 (RUNX3-positive) and SNU620 (RUNX3-negative) diffuse type cells. Then, INC280 showed the highest inhibition and apoptotic rates with the lowest IC50s in MKN45 cells but not in c-MET-reduced MKN28 (intestinal type) cells. We also showed that INC280 inhibits the WNT signaling pathway and SNAIL expression in MKN45 cells. The data indicate that INC280 could be used as therapeutic agents for the prevention or treatment of diffuse gastric cancer positive for c-MET amplification.[2]

C23H19CL2FN6O

485.34

484.098

C, 66.98; H, 4.15; F, 4.61; N, 20.38; O, 3.88

1197376-85-4

Capmatinib;1029712-80-8;Capmatinib dihydrochloride hydrate;1865733-40-9;Capmatinib hydrochloride;1029714-89-3; 1197376-85-4 (2HCl); 1197376-90-1 (besylate); 1450883-33-6 (fumarate)

44513225

Solid

85.1Ų

3

6

4

33

637

0

Cl.Cl.FC1=C(C(NC)=O)C=CC(=C1)C1C=NC2=NC=C(CC3C=CC4C(=CC=CN=4)C=3)N2N=1

ZTNPHABKLIJXTL-UHFFFAOYSA-N

InChI=1S/C23H17FN6O.2ClH/c1-25-22(31)18-6-5-16(11-19(18)24)21-13-28-23-27-12-17(30(23)29-21)10-14-4-7-20-15(9-14)3-2-8-26-20;;/h2-9,11-13H,10H2,1H3,(H,25,31);2*1H

2-fluoro-N-methyl-4-[7-(quinolin-6-ylmethyl)imidazo[1,2-b][1,2,4]triazin-2-yl]benzamide;dihydrochloride

INCB28060; 2HClINC-280; 2HClCapmatinib; 2HClINCB28060; 2HClINC-280; 2HClNVP; Capmatinib dihydrochloride; 1197376-85-4; Capmatinib (dihydrochloride); Z0V2EW20JR; Benzamide, 2-fluoro-N-methyl-4-[7-(6-quinolinylmethyl)imidazo[1,2-b][1,2,4]triazin-2-yl]-, hydrochloride (1:2); 2-fluoro-N-methyl-4-[7-(quinolin-6-ylmethyl)imidazo[1,2-b][1,2,4]triazin-2-yl]benzamide;dihydrochloride; 2-fluoro-n-methyl-4-(7-(quinolin-6-ylmethyl)imidazo[1,2-b][1,2,4]triazin-2-yl)benzamide dihydrochloride; Capmatinib 2HCl; INC280; 2HClNVP; INC-2802HCl

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

DMSO: > 10 mM

注意: 如下所列的是一些常用的体内动物实验溶解配方，主要用于溶解难溶或不溶于水的产品（水溶度<1 mg/mL）。 建议您先取少量样品进行尝试，如该配方可行，再根据实验需求增加样品量。

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注射用配方1: DMSO : Tween 80： Saline = 10 : 5 : 85 (如： 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)
*生理盐水/Saline的制备：将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中，得到澄清溶液。
注射用配方 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (如： 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline)
注射用配方 3: DMSO : Corn oil = 10 : 90 (如： 100 μL DMSO → 900 μL Corn oil)
示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液，加到 900 μL Corn oil/玉米油中, 混合均匀。

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注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如：100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)]
*20% SBE-β-CD in Saline的制备（4°C，储存1周）：将2g SBE-β-CD (磺丁基-β-环糊精) 溶解于10mL生理盐水中，得到澄清溶液。
注射用配方 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (如： 500 μL 2-Hydroxypropyl-β-cyclodextrin (羟丙基环胡精)→ 500 μL Saline)
注射用配方 6: DMSO : PEG300 : Castor oil : Saline = 5 : 10 : 20 : 65 (如： 50 μL DMSO → 100 μL PEG300 → 200 μL Castor oil → 650 μL Saline)
注射用配方 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (如： 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline)
注射用配方 8: 溶解于Cremophor/Ethanol (50 : 50), 然后用生理盐水稀释。
注射用配方 9: EtOH : Corn oil = 10 : 90 (如： 100 μL EtOH → 900 μL Corn oil)
注射用配方 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (如： 100 μL EtOH → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline)

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口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠)
口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素)
示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中，得到0.5%CMC-Na澄清溶液；然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中，得到悬浮液。

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口服配方 3: 溶解于 PEG400 (聚乙二醇400)
口服配方 4: 悬浮于0.2% Carboxymethyl cellulose (羧甲基纤维素)
口服配方 5: 溶解于0.25% Tween 80 and 0.5% Carboxymethyl cellulose (羧甲基纤维素)
口服配方 6: 做成粉末与食物混合

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注意: 以上为较为常见方法，仅供参考， InvivoChem并未独立验证这些配方的准确性。具体溶剂的选择首先应参照文献已报道溶解方法、配方或剂型，对于某些尚未有文献报道溶解方法的化合物，需通过前期实验来确定（建议先取少量样品进行尝试），包括产品的溶解情况、梯度设置、动物的耐受性等。

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请根据您的实验动物和给药方式选择适当的溶解配方/方案：
1、请先配制澄清的储备液(如：用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液，按从左到右的顺序依次添加助溶剂，澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明，并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀/澄清；向上述体系中加入50 μL Tween-80，混合均匀/澄清；然后继续加入450 μL ddH2O (或 saline)定容至 1 mL；
3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出，可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果，工作液请现配现用！
6、如不确定怎么将母液配置成体内动物实验的工作液，请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。