PMID- 22961470 OWN - NLM STAT- MEDLINE DCOM- 20130326 LR - 20211021 IS - 1995-8218 (Electronic) IS - 1673-7067 (Print) IS - 1995-8218 (Linking) VI - 28 IP - 5 DP - 2012 Oct TI - Neurotrophic effects of 7,8-dihydroxycoumarin in primary cultured rat cortical neurons. PG - 493-8 LID - 10.1007/s12264-012-1233-7 [doi] AB - OBJECTIVE: Neuronal loss in the central nervous system is central to the occurrence of neurodegenerative diseases. Pharmaceutical companies have devoted much effort to developing new drugs against such diseases, since there are currently no effective drugs for neurodegenerative disease treatment. Promoting the capacity for nerve regeneration is an ideal treatment target. The present study aimed to investigate the neurotrophic effects of 7,8-dihydroxycoumarin (DHC) or daphnetin in primary cultured rat cortical neurons. METHODS: Cortical neurons were identified by microtubule-associated protein 2 (MAP2) immunostaining. Morphological observation was used to measure the average length of neurite outgrowth. MTT and lactate dehydrogenase assays were used to assess neuronal survival. The mRNA expression of MAP2 and brain-derived neurotrophic factor (BDNF) was measured by RT-PCR. RESULTS: MAP2 immunostaining showed that most of the cultured cells were neurons. Compared with the vehicle control group, DHC promoted neurite outgrowth and prolonged neuronal survival time at concentrations ranging from 2 to 8 mumol/L. Expression of both BDNF mRNA and MAP2 mRNA was increased in the groups treated with 2, 4 and 8 mumol/L DHC. CONCLUSION: DHC significantly increases neurite outgrowth and promotes neuronal survival in primary cultured rat cortical neurons. The neurotrophic effects of DHC are probably associated with increased BDNF expression. FAU - Yan, Li AU - Yan L AD - Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, 510632, China. FAU - Zhou, Xiaowen AU - Zhou X FAU - Zhou, Xing AU - Zhou X FAU - Zhang, Zheng AU - Zhang Z FAU - Luo, Huan-Min AU - Luo HM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120518 PL - Singapore TA - Neurosci Bull JT - Neuroscience bulletin JID - 101256850 RN - 0 (Nerve Growth Factors) RN - 0 (Umbelliferones) RN - XC84571RD2 (daphnetin) SB - IM MH - Animals MH - Animals, Newborn MH - Cell Survival/drug effects/physiology MH - Cerebral Cortex/cytology/*drug effects/physiology MH - Dose-Response Relationship, Drug MH - Nerve Growth Factors/chemistry/*pharmacology MH - Nerve Regeneration/*drug effects/physiology MH - Neurons/*drug effects/physiology MH - Primary Cell Culture MH - Rats MH - Rats, Sprague-Dawley MH - Umbelliferones/chemistry/*pharmacology PMC - PMC5560254 EDAT- 2012/09/11 06:00 MHDA- 2013/03/27 06:00 PMCR- 2013/10/01 CRDT- 2012/09/11 06:00 PHST- 2011/10/31 00:00 [received] PHST- 2011/12/21 00:00 [accepted] PHST- 2012/09/11 06:00 [entrez] PHST- 2012/09/11 06:00 [pubmed] PHST- 2013/03/27 06:00 [medline] PHST- 2013/10/01 00:00 [pmc-release] AID - 1233 [pii] AID - 10.1007/s12264-012-1233-7 [doi] PST - ppublish SO - Neurosci Bull. 2012 Oct;28(5):493-8. doi: 10.1007/s12264-012-1233-7. Epub 2012 May 18.