PMID- 28698933 OWN - NLM STAT- MEDLINE DCOM- 20171101 LR - 20181201 IS - 1420-9071 (Electronic) IS - 1420-682X (Print) IS - 1420-682X (Linking) VI - 74 IP - 23 DP - 2017 Dec TI - Distinct effects on the dendritic arbor occur by microbead versus bath administration of brain-derived neurotrophic factor. PG - 4369-4385 LID - 10.1007/s00018-017-2589-7 [doi] AB - Proper communication among neurons depends on an appropriately formed dendritic arbor, and thus, aberrant changes to the arbor are implicated in many pathologies, ranging from cognitive disorders to neurodegenerative diseases. Due to the importance of dendritic shape to neuronal network function, the morphology of dendrites is tightly controlled and is influenced by both intrinsic and extrinsic factors. In this work, we examine how brain-derived neurotrophic factor (BDNF), one of the most well-studied extrinsic regulators of dendritic branching, affects the arbor when it is applied locally via microbeads to cultures of hippocampal neurons. We found that local application of BDNF increases both proximal and distal branching in a time-dependent manner and that local BDNF application attenuates pruning of dendrites that occurs with neuronal maturation. Additionally, we examined whether cytosolic PSD-95 interactor (cypin), an intrinsic regulator of dendritic branching, plays a role in these changes and found strong evidence for the involvement of cypin in BDNF-promoted increases in dendrites after 24 but not 48 h of application. This current study extends our previous work in which we found that bath application of BDNF for 72 h, but not shorter times, increases proximal dendrite branching and that this increase occurs through transcriptional regulation of cypin. Moreover, this current work illustrates how dendritic branching is regulated differently by the same growth factor depending on its spatial localization, suggesting a novel pathway for modulation of dendritic branching locally. FAU - O'Neill, Kate M AU - O'Neill KM AD - Department of Cell Biology & Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA. AD - Graduate Program in Biomedical Engineering Rutgers University, Piscataway, NJ, USA. FAU - Kwon, Munjin AU - Kwon M AD - Department of Cell Biology & Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA. FAU - Donohue, Katherine E AU - Donohue KE AD - Department of Cell Biology & Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA. FAU - Firestein, Bonnie L AU - Firestein BL AUID- ORCID: 0000-0002-1679-3565 AD - Department of Cell Biology & Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ, 08854, USA. firestein@biology.rutgers.edu. AD - Biomedical Engineering Graduate Faculty Rutgers University, Piscataway, NJ, USA. firestein@biology.rutgers.edu. LA - eng GR - T32 GM008339/GM/NIGMS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20170711 PL - Switzerland TA - Cell Mol Life Sci JT - Cellular and molecular life sciences : CMLS JID - 9705402 RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Disks Large Homolog 4 Protein) RN - 0 (Dlg4 protein, rat) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Membrane Proteins) RN - 0 (RNA, Small Interfering) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Brain-Derived Neurotrophic Factor/*pharmacology MH - Dendrites/*drug effects/metabolism/ultrastructure MH - Disks Large Homolog 4 Protein MH - Embryo, Mammalian MH - Genes, Reporter MH - Green Fluorescent Proteins/genetics/metabolism MH - Hippocampus/*drug effects/metabolism/ultrastructure MH - Intracellular Signaling Peptides and Proteins/antagonists & inhibitors/*genetics/metabolism MH - Membrane Proteins/antagonists & inhibitors/*genetics/metabolism MH - Microspheres MH - Neuronal Plasticity/*drug effects/genetics MH - Primary Cell Culture MH - RNA, Small Interfering/genetics/metabolism MH - Rats MH - Time Factors MH - Transcription, Genetic MH - Transfection PMC - PMC5819737 MID - NIHMS892285 OTO - NOTNLM OT - BDNF OT - Cytosolic PSD-95 interactor (cypin) OT - Dendrite arborization OT - Hippocampal neurons OT - Local stimulation OT - Sholl analysis COIS- Conflict of Interest: The authors declare that they have no conflicts of interest. EDAT- 2017/07/13 06:00 MHDA- 2017/11/02 06:00 PMCR- 2018/12/01 CRDT- 2017/07/13 06:00 PHST- 2017/02/02 00:00 [received] PHST- 2017/07/06 00:00 [accepted] PHST- 2017/06/15 00:00 [revised] PHST- 2017/07/13 06:00 [pubmed] PHST- 2017/11/02 06:00 [medline] PHST- 2017/07/13 06:00 [entrez] PHST- 2018/12/01 00:00 [pmc-release] AID - 10.1007/s00018-017-2589-7 [pii] AID - 10.1007/s00018-017-2589-7 [doi] PST - ppublish SO - Cell Mol Life Sci. 2017 Dec;74(23):4369-4385. doi: 10.1007/s00018-017-2589-7. Epub 2017 Jul 11.