PMID- 26825574 OWN - NLM STAT- MEDLINE DCOM- 20170221 LR - 20181113 IS - 1573-6830 (Electronic) IS - 0272-4340 (Linking) VI - 36 IP - 8 DP - 2016 Nov TI - Low-Dose Homocystine Enhances Proliferation and Migration of Bv2 Microglia Cells. PG - 1279-1289 AB - Homocysteine (Hcy) is a non-essential amino acid that is derived from the breakdown of dietary methionine. Hyperhomocysteinemia (HHcy) is an independent risk factor for a variety of chronic diseases, especially neurodegenerative conditions. To better understand the role of HHcy in the pathogenesis of neurodegenerative disorders, we investigated the effect of Hcy on the proliferation and activation of microglia Bv2 cells. Cells were treated with six different Hcy concentrations: 0, 50, 100, 300, 500, and 1000 microM for different time periods (8, 12, 16, 24, and 48 h). The morphology of Bv2 cells was observed, and cell activity and proliferation were detected. Cell migration and secretion of pro-inflammatory cytokines were detected by the scratch wound assay, the transwell assay, and ELISA, respectively. The effect of Hcy on Bv2 proliferation occurred earlier (<24 h, especially 16 h) after treatment with concentrations between 100 and 300 muM, and there was no cytotoxicity to Bv2 cells. Meanwhile, functional assays suggested that Hcy not only promoted Bv2 secretion of the pro-inflammatory cytokines IL-1beta, TNF-alpha, and IL-6, but also enhanced Bv2 migration and invasion, with 100 muM being the most effective concentration. In summary, Bv2 proliferation and activation can be promoted by short-term treatment with low-dose Hcy. FAU - Wan, Lishu AU - Wan L AD - Department of Neurology, The First Hospital of Dandong, Baoshan Street No. 76, Yuanbao District, Dandong city, 118000, Liaoning Province, China. wanlishu_dandong@163.com. FAU - Sun, Yingjie AU - Sun Y AD - Department of Medicine, The Central Hospital of Dandong, Dandong, China. FAU - Zhang, Fan AU - Zhang F AD - Clinical Medicine Laboratory, The Medical College of Eastern Liaoning University, Dandong, China. FAU - Ren, Yan AU - Ren Y AD - Department of Neurology, The First Hospital of China Medical University, Shenyang, China. LA - eng PT - Journal Article DEP - 20160129 PL - United States TA - Cell Mol Neurobiol JT - Cellular and molecular neurobiology JID - 8200709 RN - 0 (Cytokines) RN - 462-10-2 (Homocystine) SB - IM MH - Apoptosis/drug effects MH - Cell Line MH - Cell Movement/drug effects MH - Cell Proliferation/drug effects MH - Cytokines/metabolism MH - Dose-Response Relationship, Drug MH - Homocystine/*pharmacology MH - Microglia/*drug effects/physiology MH - Neurodegenerative Diseases/etiology/metabolism OTO - NOTNLM OT - Activation OT - Bv2 cells OT - Homocysteine OT - Proliferation EDAT- 2016/01/31 06:00 MHDA- 2017/02/22 06:00 CRDT- 2016/01/31 06:00 PHST- 2015/09/28 00:00 [received] PHST- 2015/12/23 00:00 [accepted] PHST- 2016/01/31 06:00 [pubmed] PHST- 2017/02/22 06:00 [medline] PHST- 2016/01/31 06:00 [entrez] AID - 10.1007/s10571-015-0325-0 [pii] AID - 10.1007/s10571-015-0325-0 [doi] PST - ppublish SO - Cell Mol Neurobiol. 2016 Nov;36(8):1279-1289. doi: 10.1007/s10571-015-0325-0. Epub 2016 Jan 29.