PMID- 28939435 OWN - NLM STAT- MEDLINE DCOM- 20180326 LR - 20180920 IS - 0925-4439 (Print) IS - 0925-4439 (Linking) VI - 1864 IP - 1 DP - 2018 Jan TI - Characterization of subventricular zone-derived progenitor cells from mild and late symptomatic YAC128 mouse model of Huntington's disease. PG - 34-44 LID - S0925-4439(17)30324-1 [pii] LID - 10.1016/j.bbadis.2017.09.009 [doi] AB - Huntington's disease (HD) is caused by an expansion of CAG repeats in the HTT gene, leading to expression of mutant huntingtin (mHTT) and selective striatal neuronal loss, frequently associated with mitochondrial dysfunction and decreased support of brain-derived neurotrophic factor (BDNF). New neurons derived from the subventricular zone (SVZ) are apparently not able to rescue HD pathological features. Thus, we analyzed proliferation, migration and differentiation of adult SVZ-derived neural stem/progenitor cells (NSPC) from mild (6month-old (mo)) and late (10mo) symptomatic HD YAC128 mice expressing full-length (FL)-mHTT versus age-matched wild-type (WT) mice. SVZ cells derived from 6mo YAC128 mice exhibited higher migratory capacity and a higher number of MAP2+ and synaptophysin+cells, compared to WT cells; MAP2 labeling was enhanced after exposure to BDNF. However, BDNF-evoked neuronal differentiation was not observed in 10mo YAC128 SVZ-derived cells. Interestingly, 6mo YAC128 SVZ-derived cells showed increased intracellular Ca(2+) levels in response to KCl, which was potentiated by BDNF, evidencing the presence of differentiated neurons. In contrast, KCl depolarization-induced intracellular Ca(2+) increase in 10mo YAC128 SVZ-derived cells was shown to be increased only in BDNF-treated YAC128 SVZ-derived cells, suggestive of decreased differentiation capacity. In addition, BDNF-untreated NSPC from 10mo YAC128 mice exhibited lower mitochondrial membrane potential and increased mitochondrial Ca(2+) accumulation, in relation with NSPC from 6mo YAC128 mice. Data evidence age-dependent reduced migration and decreased acquisition of a neuronal phenotype, accompanied by decreased mitochondrial membrane potential in SVZ-derived cells from YAC128 mice through HD symptomatic phases. CI - Copyright (c) 2017 Elsevier B.V. All rights reserved. FAU - Silva, Ana C AU - Silva AC AD - CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal. FAU - Ferreira, Ildete L AU - Ferreira IL AD - CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Portugal. FAU - Hayden, Michael R AU - Hayden MR AD - Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, University of British Columbia, Vancouver, BC V5Z 4H4, Canada. FAU - Ferreiro, Elisabete AU - Ferreiro E AD - CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Portugal. FAU - Rego, A Cristina AU - Rego AC AD - CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal; FMUC-Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal. Electronic address: acrego@cnc.uc.pt. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170920 PL - Netherlands TA - Biochim Biophys Acta Mol Basis Dis JT - Biochimica et biophysica acta. Molecular basis of disease JID - 101731730 RN - 0 (Htt protein, mouse) RN - 0 (Huntingtin Protein) SB - IM MH - Animals MH - Cells, Cultured MH - Disease Models, Animal MH - Disease Progression MH - Female MH - Huntingtin Protein/genetics MH - Huntington Disease/genetics/*pathology MH - Lateral Ventricles/*pathology MH - Male MH - Mice MH - Mice, Transgenic MH - Neural Stem Cells/*pathology MH - Severity of Illness Index OTO - NOTNLM OT - BDNF OT - Calcium handling OT - Mitochondrial membrane potential OT - Mutant huntingtin OT - Neurospheres OT - Subventricular zone OT - YAC128 mice EDAT- 2017/09/25 06:00 MHDA- 2018/03/27 06:00 CRDT- 2017/09/24 06:00 PHST- 2017/02/06 00:00 [received] PHST- 2017/09/02 00:00 [revised] PHST- 2017/09/12 00:00 [accepted] PHST- 2017/09/25 06:00 [pubmed] PHST- 2018/03/27 06:00 [medline] PHST- 2017/09/24 06:00 [entrez] AID - S0925-4439(17)30324-1 [pii] AID - 10.1016/j.bbadis.2017.09.009 [doi] PST - ppublish SO - Biochim Biophys Acta Mol Basis Dis. 2018 Jan;1864(1):34-44. doi: 10.1016/j.bbadis.2017.09.009. Epub 2017 Sep 20.