5-Aminolevulinic acid hydrochloride (Synonyms: 5-氨基乙酰丙酸鹽酸鹽; 5-ALA hydrochloride; δ-Aminolevulinic acid hydrochloride; 5-Amino-4-oxopentanoic acid hydrochloride)
5-Aminolevulinic acid hydrochloride (5-ALA hydrochloride) 是體內(nèi)血紅素生物合成的中間體，為四吡咯的前體。
生物活性
5-Aminolevulinic acid hydrochloride (5-ALA hydrochloride) is an intermediate in heme biosynthesis in the body and the universal precursor of tetrapyrroles.
IC50 & Target
Human Endogenous Metabolite
體外研究(In Vitro)
5-Aminolevulinic acid hydrochloride (ALA) is a non-fluorescent prodrug that leads to intracellular accumulation of fluorescent porphyrins in malignant gliomas-a finding that is under investigation for intraoperative identification and resection of these tumours. Median follow-up was 35.4 months (95% CI 1.0-56.7). Contrast-enhancing tumour was resected completely in 90 (65%) of 139 patients assigned 5-aminolevulinic acid compared with 47 (36%) of 131 assigned white light (difference between groups 29% [95% CI 17-40], p<0.0001). Patients allocated 5-aminolevulinic acid had higher 6-month progression free survival than did those allocated white light (41.0% [32.8-49.2] vs 21.1% [14.0-28.2]; difference between groups 19.9% [9.1-30.7], p=0.0003, Z test) [1]. 5-ALA alone proved to be insufficient in attaining gross total resection without the danger of incurring postoperative neurological deterioration. Furthermore, in the case of functional grade III gliomas, iMRI in combination with functional neuronavigation was significantly superior to the 5-ALA resection technique[2] .
分子量：167.59
性狀：Solid
Formula：C5H10ClNO3
CAS 號：5451-09-2
中文名稱：5-氨基乙酰丙酸鹽酸鹽
運輸條件：Room temperature in continental US; may vary elsewhere.
儲存方式
4°C, sealed storage, away from moisture
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
溶解性數(shù)據(jù)
DMSO : 100 mg/mL (596.69 mM; Need ultrasonic)
H2O : 16.67 mg/mL (99.47 mM; ultrasonic and warming and heat to 60°C)
| 濃度溶劑體積質(zhì)量 | 1 mg | 5 mg | 10 mg |
|---|
| 1 mM | 5.9669 mL | 29.8347 mL | 59.6694 mL |
| 5 mM | 1.1934 mL | 5.9669 mL | 11.9339 mL |
| 10 mM | 0.5967 mL | 2.9835 mL | 5.9669 mL |
請根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲備液；一旦配成溶液，請分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
儲備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C 儲存時，請在 6 個月內(nèi)使用，-20°C 儲存時，請在 1 個月內(nèi)使用。
以下溶解方案都請先按照 In Vitro 方式配制澄清的儲備液，再依次添加助溶劑：
——為保證實驗結(jié)果的可靠性，澄清的儲備液可以根據(jù)儲存條件，適當保存；體內(nèi)實驗的工作液，建議您現(xiàn)用現(xiàn)配，當天使用； 以下溶劑前顯示的百
分比是指該溶劑在您配制終溶液中的體積占比；如在配制過程中出現(xiàn)沉淀、析出現(xiàn)象，可以通過加熱和/或超聲的方式助溶
- 1.
請依序添加每種溶劑： PBS
Solubility: 100 mg/mL (596.69 mM); Clear solution; Need ultrasonic
- 2.
請依序添加每種溶劑： 10% DMSO 40% PEG300 5% Tween-80 45% saline
Solubility: ≥ 2.08 mg/mL (12.41 mM); Clear solution
- 3.
請依序添加每種溶劑： 10% DMSO 90% (20% SBE-β-CD in saline)
Solubility: ≥ 2.08 mg/mL (12.41 mM); Clear solution
- 4.
請依序添加每種溶劑： 10% DMSO 90% corn oil
Solubility: ≥ 2.08 mg/mL (12.41 mM); Clear solution
參考文獻
[1]. Stummer, W., et al., Fluorescence-guided surgery with 5-aminolevulinic acid for resection of malignant glioma: a randomised controlled multicentre phase III trial. Lancet Oncol, 2006. 7(5): p. 392-401. [Content Brief]
[2]. Eyupoglu, I.Y., et al., Improving the extent of malignant glioma resection by dual intraoperative visualization approach. PLoS One, 2012. 7(9): p. e44885. [Content Brief]
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