(±)-10-Hydroxycamptothecin
Based on 1 Customer Validation
(±)-10-Hydroxycamptothecin is an indole alkaloid that inhibits the activity of topoisomerase I and has a broad spectrum of anticancer activity.
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- 純度: 99.57%
- CAS 番号: 64439-81-2
- 分子式: C20H16N2O5
- 分子量:364.35
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保管条件:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Topoisomerase アイソフォーム固有の製品をすべて表示
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生物活性
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Topoisomerase I |
(±)-10-Hydroxycamptothecin (10-OH-camptothecin) is an inhibitor of topo I[1]. (±)-10-Hydroxycamptothecin (10-HCPT, 5-20 nM) markedly inhibits the proliferation of Colo 205 cells in a dose-dependent manner. (±)-10-Hydroxycamptothecin (5-20 nM) arrests Colo 205 cells in the G2 phase of the cell cycle and triggers apoptosis through a caspase-3-dependent pathway[2]. (±)-10-Hydroxycamptothecin (HPT, 0.01-10 μg/mL) causes cell shrinage, nuclear fragmentation and condensed chromosomes and induces apoptosis of human urinary bladder cancer cell line (T24)[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
化学情報
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CAS 番号 64439-81-2
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性状 Solid
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分子量 364.35
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分子式 C20H16N2O5
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Color Light yellow to yellow
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SMILES
O=C1C(O)(CC)C2=C(CO1)C(N3CC4=CC5=CC(O)=CC=C5N=C4C3=C2)=O
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別名
(±)-10-HCPT
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Structure Classification
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Initial Source
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輸送条件
Room temperature in continental US; may vary elsewhere.
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保管条件
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
溶剤 & 溶解度
DMSO : 25 mg/mL (68.62 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
濃度 (開始) × 体積 (開始) = 濃度 (終了) × 体積 (終了)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: 2.5 mg/mL (6.86 mM); Suspended solution; Need ultrasonic
This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 0.5% CMC-Na/saline water
Solubility: 5 mg/mL (13.72 mM); Suspended solution; Need ultrasonic
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
プロトコル
Colo 205 cells (5 × 105) (ATCC: CCL-222) are seeded in 25T flasks overnight and then treated without (control) and with 5, 10, 15 or 20 nM of (±)-10-Hydroxycamptothecin, respectively. After treatment for 24-120 h, cells are harvested by trypsin-EDTA and then centrifuged at 1,500 rpm for 5 min at 4˚C. The cell pellet is resuspended in culture medium containing 0.04% trypan blue and the viable cells are enumerated by a hemocytometer[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
BALB/c-nu mice are housed in a laminar flow room under sterilized conditions with a maintained temperature of 25 ± 2˚C and a controlled 12-h light and 12-h dark cycle. The Colo 205 cells are harvested and resuspended in serum-free RPMI-1640 medium. Cells are adjusted to 1 × 107 cells/mL, and transplanted 0.1 mL subcutaneously to the flank regions of the mice. Each experimental group included six to seven mice bearing tumors. (±)-10-Hydroxycamptothecin is dissolved in propylene glycol and treatment begins when the tumor size reach 3-5 mm. (±)-10-Hydroxycamptothecin is administered via p.o. once per two or four days at doses of 1, 2.5, 5, 7.5 mg/kg (volume of injection: 0.1 mL/20 g of body weight), respectively. The control group receives propylene glycol vehicle once per two days. Tumor size and body weight are monitored twice a week throughout the experiment. The tumor size is measured using a vernier caliper. Tumor volume (V) is calculated according to the formula: V (mm3) = 0.4AB2, where A and B are the longest diameter and the shortest diameter, respectively. At the end of the experiment, all mice are sacrificed by CO2 gas. Tumors, livers, kidneys and lungs are collected, fixed, embedded and stained with hematoxylin and eosin for pathological analysis[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
純度とドキュメンテーション
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取扱説明書 (2659 KB)
参考文献
[1]. Liu SY, et al. Interaction of several nucleoside triphosphate analogues and 10-hydroxycamptothecin with human DNA topoisomerases. Cancer Res. 1989 Mar 15;49(6):1366-70. [Content Brief]
[2]. Ping YH, et al. Anticancer effects of low-dose 10-hydroxycamptothecin in human colon cancer. Oncol Rep. 2006 May;15(5):1273-9. [Content Brief]
[3]. Fan J, et al. Detection of apoptosis exposed to 10-hydroxycamptothecin in T24 human urinary bladder cancer cells. Zhonghua Wai Ke Za Zhi. 1999 Jan;37(1):57-9. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.7446 mL | 13.7231 mL | 27.4461 mL | 68.6153 mL |
| 5 mM | 0.5489 mL | 2.7446 mL | 5.4892 mL | 13.7231 mL | |
| 10 mM | 0.2745 mL | 1.3723 mL | 2.7446 mL | 6.8615 mL | |
| 15 mM | 0.1830 mL | 0.9149 mL | 1.8297 mL | 4.5744 mL | |
| 20 mM | 0.1372 mL | 0.6862 mL | 1.3723 mL | 3.4308 mL | |
| 25 mM | 0.1098 mL | 0.5489 mL | 1.0978 mL | 2.7446 mL | |
| 30 mM | 0.0915 mL | 0.4574 mL | 0.9149 mL | 2.2872 mL | |
| 40 mM | 0.0686 mL | 0.3431 mL | 0.6862 mL | 1.7154 mL | |
| 50 mM | 0.0549 mL | 0.2745 mL | 0.5489 mL | 1.3723 mL | |
| 60 mM | 0.0457 mL | 0.2287 mL | 0.4574 mL | 1.1436 mL |
(±)-10-Hydroxycamptothecin 関連分類
HY-N0275 関連分類
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