PMID- 29523880 OWN - NLM STAT- MEDLINE DCOM- 20181011 LR - 20181011 IS - 1476-5462 (Electronic) IS - 0969-7128 (Linking) VI - 25 IP - 2 DP - 2018 Apr TI - Widespread transduction of astrocytes and neurons in the mouse central nervous system after systemic delivery of a self-complementary AAV-PHP.B vector. PG - 83-92 LID - 10.1038/s41434-018-0005-z [doi] AB - Until recently, adeno-associated virus 9 (AAV9) was considered the AAV serotype most effective in crossing the blood-brain barrier (BBB) and transducing cells of the central nervous system (CNS), following systemic injection. However, a newly engineered capsid, AAV-PHP.B, is reported to cross the BBB at even higher efficiency. We investigated how much we could boost CNS transgene expression by using AAV-PHP.B carrying a self-complementary (sc) genome. To allow comparison, 6 weeks old C57BL/6 mice received intravenous injections of scAAV2/9-GFP or scAAV2/PHP.B-GFP at equivalent doses. Three weeks postinjection, transgene expression was assessed in brain and spinal cord. We consistently observed more widespread CNS transduction and higher levels of transgene expression when using the scAAV2/PHP.B-GFP vector. In particular, we observed an unprecedented level of astrocyte transduction in the cortex, when using a ubiquitous CBA promoter. In comparison, neuronal transduction was much lower than previously reported. However, strong neuronal expression (including spinal motor neurons) was observed when the human synapsin promoter was used. These findings constitute the first reported use of an AAV-PHP.B capsid, encapsulating a scAAV genome, for gene transfer in adult mice. Our results underscore the potential of this AAV construct as a platform for safer and more efficacious gene therapy vectors for the CNS. FAU - Rincon, Melvin Y AU - Rincon MY AD - VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium. AD - KU Leuven, Department of Neuroscience, Leuven, Belgium. FAU - de Vin, Filip AU - de Vin F AD - VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium. AD - KU Leuven, Department of Neuroscience, Leuven, Belgium. FAU - Duque, Sandra I AU - Duque SI AD - VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium. AD - KU Leuven, Department of Neuroscience, Leuven, Belgium. FAU - Fripont, Shelly AU - Fripont S AD - VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium. AD - KU Leuven, Department of Neuroscience, Leuven, Belgium. FAU - Castaldo, Stephanie A AU - Castaldo SA AD - VIB-KU Leuven Center for Cancer Biology, Leuven, Belgium. AD - KU Leuven, Department of Oncology, Leuven, Belgium. FAU - Bouhuijzen-Wenger, Jessica AU - Bouhuijzen-Wenger J AD - VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium. AD - KU Leuven, Department of Neuroscience, Leuven, Belgium. FAU - Holt, Matthew G AU - Holt MG AD - VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium. Matthew.Holt@kuleuven.vib.be. AD - KU Leuven, Department of Neuroscience, Leuven, Belgium. Matthew.Holt@kuleuven.vib.be. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180309 PL - England TA - Gene Ther JT - Gene therapy JID - 9421525 RN - 0 (Synapsins) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Astrocytes/*metabolism MH - Brain/cytology/*metabolism MH - Dependovirus/*genetics MH - Female MH - Genetic Vectors/*administration & dosage MH - Green Fluorescent Proteins/genetics/metabolism MH - Humans MH - Mice, Inbred C57BL MH - Neurons/*metabolism MH - Promoter Regions, Genetic MH - Synapsins/genetics MH - *Transduction, Genetic MH - Transgenes EDAT- 2018/03/11 06:00 MHDA- 2018/10/12 06:00 CRDT- 2018/03/11 06:00 PHST- 2017/06/28 00:00 [received] PHST- 2018/01/30 00:00 [accepted] PHST- 2018/01/23 00:00 [revised] PHST- 2018/03/11 06:00 [pubmed] PHST- 2018/10/12 06:00 [medline] PHST- 2018/03/11 06:00 [entrez] AID - 10.1038/s41434-018-0005-z [pii] AID - 10.1038/s41434-018-0005-z [doi] PST - ppublish SO - Gene Ther. 2018 Apr;25(2):83-92. doi: 10.1038/s41434-018-0005-z. Epub 2018 Mar 9.