ACTH (1-17) TFA
(Synonyms: α1-17-ACTH TFA) 目录号 : GC35244ACTH (1-17) TFA 是促肾上腺皮质激素类似物,是一种有效的人黑皮素受体 (human melanocortin 1 (MC1) receptor) 激动剂,Ki 值为 0.21 nM。
Sample solution is provided at 25 µL, 10mM.
ACTH (1-17) TFA, an adrenocorticotropin analogue, is a potent human melanocortin 1 (MC1) receptor agonist with a Ki of 0.21 nM. Ki: 0.21 nM (human MC1 receptor)[1]
ACTH (1-17) TFA is a potent agonist at the hMC1R. ACTH (1-17) shows high affinity for the hMC1R with a Ki value of 0.21±0.03 nM which is slightly higher than that of 0.13±0.005 nM for alpha-MSH[1]. ACTH (1-17) induces a slight and not significant increase in growth hormone secretion even when micromolar concentrations of the peptide are employed in rat pituitary cultures[2].
Inhibition of DNA labeling is noted when the ACTH (1-17) is administered at 2 hr after the beginning of the daily dark span when nocturnal animals become active. When administered at this circadian stage, the larger dose in particular is associated with an inhibition of DNA labeling lasting for 24 hr. The inhibitory effect is much shorter when the same dose is injected 4 hr earlier[3].
[1]. Tsatmali M et al. ACTH1-17 is a more potent agonist at the human MC1 receptor than alpha-MSH. Cell Mol Biol (Noisy-le-grand). 1999 Nov;45(7):1029-34. [2]. Ceda GP, et al. The effects of ACTH (1-17) on GH secretion in vitro. Horm Metab Res. 1987 Aug;19(8):361-3. [3]. Walker WV, et al. Effect of an adrenocorticotropin analogue, ACTH (1-17), on DNA synthesis in murine metaphyseal bone. Biochem Pharmacol. 1985 Apr 15;34(8):1191-6.
Cell experiment: | Rat pituitary cells are incubated in the presence of varying concentrations of ACTH (1-17) (0.1 nM-1 μM). A significant increase of growth hormone secretion is documented with each concentration[1]. |
Animal experiment: | Mice[3]The effects of ACTH (1-17) on the rate of DNA labeling in the metaphyseal bone of CD2F1 mice are tested on a chronopharmacological dosing schedule. Groups of mice that has been conditioned to a 12-hr light/12-hr dark schedule are injected at one of six different timepoints, 4 hr apart during ,a single 24-hr span with either a low (0.021 I.U/kg) or a high (20 I.U./kg) dose of ACTH (1-17). Control groups receive injections of a placebo at corresponding timepoints. Subgroups of mice are injected with [3H]thymidine ([3H]Tdr) to follow the changes in DNA labeling in the proximal tibial metaphysis at 15 min and 2, 4, 8, 12 and 24 hr after ACTH (1-17) or placebo treatment[3]. |
References: [1]. Tsatmali M et al. ACTH1-17 is a more potent agonist at the human MC1 receptor than alpha-MSH. Cell Mol Biol (Noisy-le-grand). 1999 Nov;45(7):1029-34. |
Cas No. | SDF | ||
别名 | α1-17-ACTH TFA | ||
分子式 | C95H145N29O23S.C2HF3O2 | 分子量 | 2207.43 |
溶解度 | H2O : 100 mg/mL (45.30 mM; Need ultrasonic) | 储存条件 | -20°C, protect from light |
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Shipping Condition | 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。 |
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1 mg | 5 mg | 10 mg | |
1 mM | 0.453 mL | 2.2651 mL | 4.5302 mL |
5 mM | 0.0906 mL | 0.453 mL | 0.906 mL |
10 mM | 0.0453 mL | 0.2265 mL | 0.453 mL |
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给药剂量 | mg/kg | 动物平均体重 | g | 每只动物给药体积 | ul | 动物数量 | 只 | |||
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% DMSO % % Tween 80 % saline | ||||||||||
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1. 首先保证母液是澄清的;
2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
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