CB1/β-Arrestin/CHO
CBP71391
                       
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                | I. Background | |
| CB1 受體(Cannabinoid Receptor Type 1)是內(nèi)源性大麻素系統(tǒng)(ECS)的核心成員, 屬于 G 蛋白偶聯(lián)受體(GPCR)家族,由基因 CNR1 編碼。CB1 廣泛分布于中樞神經(jīng)系統(tǒng) (如基底節(jié)、海馬、小腦)及外周組織(脂肪、肝臟、免疫細(xì)胞)。作為 脂質(zhì)信號樞紐, CB1 通過結(jié)合內(nèi)源性大麻素(如 anandamide、2-AG)或外源性大麻素(如Δ?-THC),調(diào) 控神經(jīng)遞質(zhì)釋放、突觸可塑性、能量代謝及疼痛感知。病理狀態(tài)下,CB1 過度激活與神經(jīng) 精神疾病(焦慮、成癮)、代謝紊亂(肥胖、胰島素抵抗)及慢性疼痛密切相關(guān)。盡管全 球首個 CB1 拮抗劑利莫那班(Rimonabant)因精神副作用退市,新一代偏向性配體(如 CB1 負(fù)向變構(gòu)調(diào)節(jié)劑)和靶向外周 CB1 的藥物正成為代謝病和神經(jīng)退行性疾病的研究熱點(diǎn)。 | |
| II. Description | |
      CB1 β-Arrestin CHO 報告基因藥靶模型很好的模擬了體內(nèi) CB1/β-Arrestin 的信號轉(zhuǎn)導(dǎo)過 程,原理見下圖所示。當(dāng)缺乏配體刺激時,β-Arrestin 不與 CB1 結(jié)合,融合β-Arrestin 的熒 光素酶處于失活構(gòu)象,當(dāng) CB1 遭遇配體刺激時,融合熒光素酶報告基因的β-Arrestin 被招 募,使熒光素酶報告基因處于激活狀態(tài),加入其底物后發(fā)光信號增強(qiáng)。![]() Figure 1. CB1 β-Arrestin CHO 細(xì)胞模型原理圖  | 
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| III. Introduction | |
| Host Cell: | 
				 CHO  | 
		
| Stability: | 20 passages (in-house test, that not means the cell line will be instable beyond the passages we tested.) | 
| Freeze Medium: | 90% FBS+10% DMSO | 
| Culture Medium: | F12k+10%FBS+5ug/ml puromycin+5ug/ml blasticidin | 
| Mycoplasma Status: | Negative | 
| Storage: | Liquid nitrogen immediately upon delivery | 
| Application(s): | Functional assay for CNR1 | 
| Transducer: | β-Arrestin | 
| IV. Description of Host Cell Line | |
| Organism: | Hamster | 
| Tissue: | Ovary | 
| Morphology: | Epithelial | 
| Growth Properties: | Adherent | 
| V. Representative Data | |
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 Figure 2. Recombinant CB1/β-Arrestin/CHO constitutively expressing CB1.  | 
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 Figure 3.Dose response of CP-55940 in CB1 β-Arrestin CHO-K1 Cell Line (C2)  | 
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 Figure 4. Inhibition of CP-55940-induced Beta-Arrestin Recruitment in CB1 Beta-Arrestin CHO-K1 Cells (C2).  | 
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