mc3r

RO27-3225 TFA is a potent and selective agonist of melanocortin 4 receptor (MC4R; EC50: 1 nM and 8 nM for MC4R and MC1R) with neuroprotective and anti-inflammatory effects. RO27-3225 TFA shows ~30-fold selectivity for MC4R over MC3R.

Setmelanotide (BIM-22493) 是黑皮质素 4 受体 (MC4R) 的选择性激动剂(人和大鼠 MC4R，EC50 分别为 0.27 nM 和 0.28 nM)。

Nonapeptide-1 (Melanostatine-5) acetate salt，一种多肽类激素，是 MC1R 选择性拮抗剂 (Ki: 40 nM)。 Nonapeptide-1 acetate salt 是一种竞争性的α-MSH 拮抗剂，可有效抑制黑素细胞中 α-MSH 诱导的细胞内 cAMP 和黑素体扩散 (IC50分别为 2.5 nM 和 11 nM)。 Nonapeptide-1 acetate salt 抑制黑色素合成，可用于研究皮肤色素沉着和肾上腺类固醇生成的调节、皮肤癌。

Nonapeptide-1 (Melanostatine™ 5) 可以抑制黑色素的合成，这使得它对治疗某些皮肤病很感兴趣。

Dersimelagon (MT-7117) 是一种具有口服活性的选择性黑皮质素 1 受体(MC1R) 激动剂，对人 (h)、食蟹猴 (cm)、小鼠 (m) 和大鼠 (r) MC1R 的 EC50 值分别为 8.16、3.91、1.14 和 0.251 nM。Dersimelagon 对 hMC1R 和 hMC4R 表现出良好的亲和力，Ki 值分别为 2.26 和 32.9 nM。Dersimelagon 可用于皮肤色素沉着的研究[1]。

PG 106 acetate 是一种有效的特异性人黑皮质素 3 (hMC3) 受体拮抗剂，IC50 为 210 nM。 PG 106 acetate 对 hMC5 受体和 hMC4 受体没有活性，hMC4 受体的 EC50 为 9900 nM。

Setmelanotide Acetate(920014-72-8 free base) (RM-493 Acetate) 是黑皮质素 4 受体 (MC4R) 的选择性激动剂（人和大鼠 MC4R，EC50 分别为 0.27 nM 和 0.28 nM）。

SHU 9119 is an effective human melanocortin 3 and 4 receptors (MC3 4R) antagonist and a partial MC5R agonist (IC50: 0.23, 0.06, and 0.09 nM for human MC3R, MC4R and MC5R, respectively).

SHU 9119 acetate 是众所周知的人黑皮质素 3 和 4 (hMC3R, hMC4R) 受体拮抗剂和部分 hMC5R 激动剂。人 MC3R、MC4R 和 MC5R 的 IC50 值分别为 0.23、0.06 和 0.09 nM。

Bremelanotide is a synthetic peptide analog of alpha-MSH and is an agonist at melanocortin receptors including the MC3R and MC4R.

α-Melanocyte-stimulating hormone (α-MSH) is a 13-amino acid peptide hormone produced by post-translational processing of proopiomelanocortin (POMC) in the pituitary gland, as well as in keratinocytes, astrocytes, monocytes, and gastrointestinal cells.1It is an agonist of melanocortin receptor 3 (MC3R) and MC4R that induces cAMP production in Hepa cells expressing the human receptors (EC50s = 0.16 and 56 nM, respectively).2α-MSH (100 pM) reducesS. aureuscolony formation andC. albicansgerm tube formationin vitro.3It inhibits endotoxin-, ceramide-, TNF-α-, or okadaic acid-induced activation of NF-κB in U937 cells.1α-MSH reduces IL-6- or TNF-α-induced ear edema in mice.4It also prevents the development of adjuvant-induced arthritis in rats and increases survival in a mouse model of septic shock. Increased plasma levels of α-MSH are positively correlated with delayed disease progression and reduced death in patients with HIV.1 1.Catania, A., Airaghi, L., Colombo, G., et al.α-melanocyte-stimulating hormone in normal human physiology and disease statesTrends Endocrinol. Metab.11(8)304-308(2000) 2.Miwa, H., Gantz, I., Konda, Y., et al.Structural determinants of the melanocortin peptides required for activation of melanocortin-3 and melanocortin-4 receptorsJ. Pharmacol. Exp. Ther.273(1)367-372(1995) 3.Cutuli, M., Cristiani, S., Lipton, J.M., et al.Antimicrobial effects of a-MSH peptidesJ. Leukoc. Biol.67(2)233-239(2000) 4.Lipton, J.M., Ceriani, G., Macaluso, A., et al.Antiiinflammatory effect of the neuropeptide a-MSH in acute, chronic, and systemic inflammationAnn. N.Y. Acad. Sci.25(741)137-148(1994)

Melanotan II acetate is an agonist of melanocortin receptor 1 (MC1R), MC3R, MC4R, and MC5R. It has been shown to improve recovery of sciatic nerve function after mechanical injury and increase cisplatin-induced decreases in sensory nerve conduction velocity. Melanotan II acetate increases oxygen consumption and protein levels of uncoupling protein 1 (UCP1) in brown adipose tissue homogenates and decreases food intake, body weight, and serum levels of leptin, glucose, insulin, and cholesterol.

Bremelanotide Acetate (PT-141 Acetate) 是 α-MSH 的合成肽类似物，是黑素皮质素受体 MC3R 和 MC4R 的激动剂，有用于性功能障碍的研究潜力。

Melanocortin (MC) 3-MSH (Melanocyte-Stimulating Hormone) is believed to signal through the MC 3 receptor. It induces a sustained increase in intracellular free calcium levels ([Ca2+]i) in a subpopulation of pituitary cells. Most of the cells responding to