Establishment of Human Neuroblastoma Cell-Line (SK-N-SH) as an In Vitro Model of Morphine Addiction  

作　　者：Noor Azuin Suliman Noor Azlina Abu Bakar Mohamad Aris Mohd Moklas Che Norma Mat Taib 

机构地区：[1]Faculty of Medicine and Health Science,Universiti Sultan Zainal Abidin(UniSZA),Kampus Kota,Jalan Sultan Mahmud,Kuala Terengganu20400,Malaysia [2]Department of Biomedical Sciences,Faculty of Medicine and Health Sciences,Universiti Putra Malaysia,43400 UPM Serdang,Selangor,Malaysia

出　　处：《Journal of Pharmacy and Pharmacology》2021年第3期115-121,共7页药剂与药理学（英文版）

摘　　要：Morphine is a schedule II-controlled substance that used to allow the diminution of intra-operative, post-operative orchronic pain. However, its usage is limited due to addiction and overdose liabilities. Morphine was observed to cause tolerance,dependence and withdrawal in human. Justification: to date lack of scientific evidence of morphine addiction was carried out byusing specific single human neuroblastoma cell-line (SK-N-SH). Therefore, this study was performed to establish the morphineaddiction model in this cell line. The cells were exposed to morphine for 24 hrs before treatment with methadone, as ananti-withdrawal drug for subsequence 24 hours. The cytosolic fraction of the cell was used in different objectives including receptoraffinity, withdrawal properties, endocytic machinery, desensitisation or internalisation and cellular adaptation. The result shows thatmorphine and methadone bind to the μ-opioid receptor. The morphine-treated cells were observed to increase the expression ofaddiction markers, have a low rate of the endocytic machinery, cause desensitisation of receptor and reduce cellular adaptation.Those changes by morphine were normalised by the treatment of methadone. As a whole, it is postulated that neuroblastoma cell line,SK-N-SH, can be used as an in-vitro model to demonstrate morphine addiction before animal and human testing.

关 键 词：Morphine addiction receptor affinity withdrawal properties endocytic machinery desensitisation INTERNALISATION cellular adaptation methadone. 

分 类 号：R96[医药卫生—药理学]