PMID- 28715454 OWN - NLM STAT- MEDLINE DCOM- 20170927 LR - 20181113 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 12 IP - 7 DP - 2017 TI - Reduction of Cav1.3 channels in dorsal hippocampus impairs the development of dentate gyrus newborn neurons and hippocampal-dependent memory tasks. PG - e0181138 LID - 10.1371/journal.pone.0181138 [doi] LID - e0181138 AB - Cav1.3 has been suggested to mediate hippocampal neurogenesis of adult mice and contribute to hippocampal-dependent learning and memory processes. However, the mechanism of Cav1.3 contribution in these processes is unclear. Here, roles of Cav1.3 of mouse dorsal hippocampus during newborn cell development were examined. We find that knock-out (KO) of Cav1.3 resulted in the reduction of survival of newborn neurons at 28 days old after mitosis. The retroviral eGFP expression showed that both dendritic complexity and the number and length of mossy fiber bouton (MFB) filopodia of newborn neurons at >/= 14 days old were significantly reduced in KO mice. Both contextual fear conditioning (CFC) and object-location recognition tasks were impaired in recent (1 day) memory test while passive avoidance task was impaired only in remote (>/= 20 days) memory in KO mice. Results using adeno-associated virus (AAV)-mediated Cav1.3 knock-down (KD) or retrovirus-mediated KD in dorsal hippocampal DG area showed that the recent memory of CFC was impaired in both KD mice but the remote memory was impaired only in AAV KD mice, suggesting that Cav1.3 of mature neurons play important roles in both recent and remote CFC memory while Cav1.3 in newborn neurons is selectively involved in the recent CFC memory process. Meanwhile, AAV KD of Cav1.3 in ventral hippocampal area has no effect on the recent CFC memory. In conclusion, the results suggest that Cav1.3 in newborn neurons of dorsal hippocampus is involved in the survival of newborn neurons while mediating developments of dendritic and axonal processes of newborn cells and plays a role in the memory process differentially depending on the stage of maturation and the type of learning task. FAU - Kim, Su-Hyun AU - Kim SH AD - Center for Neuroscience, Korea Institute of Science and Technology, Seoul, Korea. AD - Neuroscience Program, Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, Korea. FAU - Park, Ye-Ryoung AU - Park YR AD - Center for Neuroscience, Korea Institute of Science and Technology, Seoul, Korea. AD - Neuroscience Program, Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, Korea. FAU - Lee, Boyoung AU - Lee B AD - Center for Cognition and Sociality, Institute for Basic Science, Daejeon, Korea. FAU - Choi, Byungil AU - Choi B AD - Department of Anatomy and Division of Brain Korea 21 Biomedical Science, College of Medicine, Korea University, Seoul, Korea. FAU - Kim, Hyun AU - Kim H AD - Department of Anatomy and Division of Brain Korea 21 Biomedical Science, College of Medicine, Korea University, Seoul, Korea. FAU - Kim, Chong-Hyun AU - Kim CH AUID- ORCID: 0000-0002-0968-4176 AD - Center for Neuroscience, Korea Institute of Science and Technology, Seoul, Korea. AD - Neuroscience Program, Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology, Seoul, Korea. LA - eng PT - Journal Article DEP - 20170717 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Cacna1d protein, mouse) RN - 0 (Calcium Channels, L-Type) RN - 0 (RNA, Small Interfering) SB - IM MH - Animals MH - Behavior, Animal MH - Calcium Channels, L-Type/chemistry/genetics/*metabolism MH - Dendrites/physiology MH - Dentate Gyrus/growth & development/*metabolism/pathology MH - Dependovirus/genetics MH - Fear MH - Genetic Vectors/metabolism MH - Hippocampus/*metabolism/pathology MH - Male MH - Memory/physiology MH - Memory, Long-Term MH - Mice MH - Mice, Inbred C57BL MH - Mice, Knockout MH - Microscopy, Confocal MH - Neurons/*metabolism MH - Pseudopodia/physiology MH - RNA Interference MH - RNA, Small Interfering/metabolism MH - Retroviridae/genetics PMC - PMC5513490 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2017/07/18 06:00 MHDA- 2017/09/28 06:00 PMCR- 2017/07/17 CRDT- 2017/07/18 06:00 PHST- 2017/03/18 00:00 [received] PHST- 2017/06/27 00:00 [accepted] PHST- 2017/07/18 06:00 [entrez] PHST- 2017/07/18 06:00 [pubmed] PHST- 2017/09/28 06:00 [medline] PHST- 2017/07/17 00:00 [pmc-release] AID - PONE-D-17-10715 [pii] AID - 10.1371/journal.pone.0181138 [doi] PST - epublish SO - PLoS One. 2017 Jul 17;12(7):e0181138. doi: 10.1371/journal.pone.0181138. eCollection 2017.