PMID- 29720605 OWN - NLM STAT- MEDLINE DCOM- 20191015 LR - 20231112 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 8 IP - 1 DP - 2018 May 2 TI - EAAC1 gene deletion reduces adult hippocampal neurogenesis after transient cerebral ischemia. PG - 6903 LID - 10.1038/s41598-018-25191-4 [doi] LID - 6903 AB - Several studies have demonstrated that excitatory amino acid carrier-1 (EAAC1) gene deletion exacerbates hippocampal and cortical neuronal death after ischemia. However, presently there are no studies investigating the role of EAAC1 in hippocampal neurogenesis. In this study, we tested the hypothesis that reduced cysteine transport into neurons by EAAC1 knockout negatively affects adult hippocampal neurogenesis under physiological or pathological states. This study used young mice (aged 3-5 months) and aged mice (aged 11-15 months) of either the wild-type (WT) or EAAC1 (-/-) genotype. Ischemia was induced through the occlusion of bilateral common carotid arteries for 30 minutes. Histological analysis was performed at 7 or 30 days after ischemia. We found that both young and aged mice with loss of the EAAC1 displayed unaltered cell proliferation and neuronal differentiation, as compared to age-matched WT mice under ischemia-free conditions. However, neurons generated from EAAC1 (-/-) mice showed poor survival outcomes in both young and aged mice. In addition, deletion of EAAC1 reduced the overall level of neurogenesis, including cell proliferation, differentiation, and survival after ischemia. The present study demonstrates that EAAC1 is important for the survival of newly generated neurons in the adult brain under physiological and pathological conditions. Therefore, this study suggests that EAAC1 plays an essential role in modulating hippocampal neurogenesis. FAU - Choi, Bo Young AU - Choi BY AD - Department of Physiology, Hallym University, College of Medicine, Chuncheon, 24252, South Korea. FAU - Won, Seok Joon AU - Won SJ AD - Department of Neurology, University of California San Francisco and Veterans Affairs Medical Center, San Francisco, CA, 94121, USA. FAU - Kim, Jin Hee AU - Kim JH AD - Department of Physiology, Hallym University, College of Medicine, Chuncheon, 24252, South Korea. FAU - Sohn, Min AU - Sohn M AD - Department of Nursing, Inha University, Incheon, 22212, South Korea. FAU - Song, Hong Ki AU - Song HK AD - Department of Neurology, Hallym University, College of Medicine, Chuncheon, 24252, South Korea. FAU - Chung, Tae Nyoung AU - Chung TN AD - Department of Emergency Medicine, CHA University School of Medicine, Seongnam, 13496, South Korea. FAU - Kim, Tae Yul AU - Kim TY AD - Department of Physiology, Hallym University, College of Medicine, Chuncheon, 24252, South Korea. FAU - Suh, Sang Won AU - Suh SW AUID- ORCID: 0000-0002-7492-579X AD - Department of Physiology, Hallym University, College of Medicine, Chuncheon, 24252, South Korea. swsuh@hallym.ac.kr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180502 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Excitatory Amino Acid Transporter 3) RN - 0 (Slc1a1 protein, mouse) SB - IM MH - Animals MH - Cell Count MH - Cell Differentiation/genetics MH - Cell Survival/genetics MH - Disease Models, Animal MH - Excitatory Amino Acid Transporter 3/*genetics MH - *Gene Deletion MH - Hippocampus/*blood supply/*metabolism/physiopathology MH - Immunohistochemistry MH - Ischemic Attack, Transient/*genetics/*metabolism/physiopathology MH - Male MH - Mice MH - Models, Biological MH - Neural Stem Cells/cytology/metabolism MH - Neurogenesis/*genetics MH - Neurons/cytology/metabolism MH - Oxidative Stress PMC - PMC5932005 COIS- The authors declare no competing interests. EDAT- 2018/05/04 06:00 MHDA- 2019/10/16 06:00 PMCR- 2018/05/02 CRDT- 2018/05/04 06:00 PHST- 2017/09/21 00:00 [received] PHST- 2018/04/17 00:00 [accepted] PHST- 2018/05/04 06:00 [entrez] PHST- 2018/05/04 06:00 [pubmed] PHST- 2019/10/16 06:00 [medline] PHST- 2018/05/02 00:00 [pmc-release] AID - 10.1038/s41598-018-25191-4 [pii] AID - 25191 [pii] AID - 10.1038/s41598-018-25191-4 [doi] PST - epublish SO - Sci Rep. 2018 May 2;8(1):6903. doi: 10.1038/s41598-018-25191-4.