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a-MSH, amide

α-黑素细胞刺激激素 (MSH),酰胺
Catalog No.
A1025
促黑素细胞激素
组合的产品项目
规格价格库存 数量
10mM (in 1mL DMSO)
¥ 2,909.00
现货
5mg
¥ 545.00
现货
10mg
¥ 909.00
现货
25mg
¥ 1,272.00
现货

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A

背景

α-MSH,酰胺(C77H109N21O19S1),序列为Ac-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2,分子量为1664.9。促黑素细胞激素,统称为MS或intermedins,是一类由垂体中叶细胞产生的多肽激素。MSH的增加导致人变黑。怀孕期间促黑素增加,伴随着雌激素的增加,引起孕妇色素沉着增多。库欣综合征是由于过量促肾上腺皮质激素(ACTH)导致色素沉着过度,例如腋窝黑棘皮症。大多数患有原发性阿狄森氏症的患者皮肤变黑(色素沉着过度),包括不暴露在太阳的部位,特征是皮肤皱折(例如手中)、乳头及脸颊(颊粘膜)的内部,旧疤痕可能会变暗。这是因为促黑素(MSH)和促肾上腺皮质激素(ACTH)具有相同的前体分子阿黑皮素原(POMC)。

促黑素是黑皮质素的一员,包括促肾上腺皮质激素、α-促黑素细胞激素(α-MSH)、(β-MSH)和(γ-MSH),这几个多肽是由前体肽阿黑皮素原(POMC)裂解的产物。α-MSH是色素沉着中最重要的黑皮质素。

Figure1  Formula of a-MSH, amide

参考文献:

1. Hadley ME (Oct 2005). "Discovery that a melanocortin regulates sexual functions in male and female humans". Peptides 26 (10): 1687–9.

2. MillingtonGW (May 2006). "Proopiomelanocortin (POMC): the cutaneous roles of its melanocortin products and receptors". Clin. Exp. Dermatol. 31 (3): 407–12

3. MillingtonGW (2007). "The role of proopiomelanocortin (POMC) neurones in feeding behaviour". Nutr Metab (Lond) 4: 18.

文献引用

化学属性

Physical AppearanceA solid
StorageStore at -20°C
M.Wt1664.9
Cas No.581-05-5
FormulaC77H109N21O19S1
SynonymsAc-Ser-Tyr-Ser-Met-Glu-His-Phe-Arg-Trp-Gly-Lys-Pro-Val-amide
Solubilityinsoluble in EtOH; ≥10.44 mg/mL in H2O with ultrasonic; ≥166.5 mg/mL in DMSO with gentle warming
SDFDownload SDF
运输条件 蓝冰运输或根据您的需求运输。
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试验操作

Animal experiment:[1]

Animal models

IL-10-deficient mice

Dosage form

50 µg/0.2 ml saline

Injected intraperitoneally

Applications

α-MSH given systemically effectively alleviated acute inflammatory reactions induced by an irritant (picryl chloride 0.5% in acetone) applied to the ear. The relative inhibition (percent of percent change) with α-MSH was virtually the same in both IL-10–deficient and in control animals (approximately 70%). α-MSH modulated all forms of inflammation by acting on peripheral inflammatory cells, glial inflammatory cells, and on central nervous system receptors that activate descending anti-inflammatory neural pathways.

Note

The technical data provided above is for reference only.

References:

1. Lipton JM, Zhao H, Ichiyama T, et al. Mechanisms of antiinflammatory action of alpha-MSH peptides. In vivo and in vitro evidence. Annals of the New York Academy of Sciences, 1999, 885: 173-182.

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