PMID- 34551608 OWN - NLM STAT- MEDLINE DCOM- 20220208 LR - 20240405 IS - 1559-7016 (Electronic) IS - 0271-678X (Print) IS - 0271-678X (Linking) VI - 42 IP - 1 DP - 2022 Jan TI - A review of bioeffects induced by focused ultrasound combined with microbubbles on the neurovascular unit. PG - 3-26 LID - 10.1177/0271678X211046129 [doi] AB - Focused ultrasound combined with circulating microbubbles (FUS+MB) can transiently enhance blood-brain barrier (BBB) permeability at targeted brain locations. Its great promise in improving drug delivery to the brain is reflected by a rapidly growing number of clinical trials using FUS+MB to treat various brain diseases. As the clinical applications of FUS+MB continue to expand, it is critical to have a better understanding of the molecular and cellular effects induced by FUS+MB to enhance the efficacy of current treatment and enable the discovery of new therapeutic strategies. Existing studies primarily focus on FUS+MB-induced effects on brain endothelial cells, the major cellular component of BBB. However, bioeffects induced by FUS+MB expand beyond the BBB to cells surrounding blood vessels, including astrocytes, microglia, and neurons. Together these cell types comprise the neurovascular unit (NVU). In this review, we examine cell-type-specific bioeffects of FUS+MB on different NVU components, including enhanced permeability in endothelial cells, activation of astrocytes and microglia, as well as increased intraneuron protein metabolism and neuronal activity. Finally, we discuss knowledge gaps that must be addressed to further advance clinical applications of FUS+MB. FAU - Chen, Si AU - Chen S AD - Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO, USA. FAU - Nazeri, Arash AU - Nazeri A AD - Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO, USA. FAU - Baek, Hongchae AU - Baek H AD - Imaging Institute and Neurological Institute, 2569Cleveland Clinic, Cleveland Clinic, Cleveland, OH, USA. FAU - Ye, Dezhuang AU - Ye D AD - Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO, USA. FAU - Yang, Yaoheng AU - Yang Y AD - Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO, USA. FAU - Yuan, Jinyun AU - Yuan J AD - Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO, USA. FAU - Rubin, Joshua B AU - Rubin JB AD - Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO, USA. AD - Department of Neuroscience, Washington University School of Medicine, Saint Louis, MO, USA. FAU - Chen, Hong AU - Chen H AD - Department of Biomedical Engineering, Washington University in St. Louis, Saint Louis, MO, USA. AD - Department of Radiation Oncology, Washington University School of Medicine, Saint Louis, MO, USA. LA - eng GR - R01 EB027223/EB/NIBIB NIH HHS/United States GR - R01 EB030102/EB/NIBIB NIH HHS/United States GR - R01 MH116981/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20210922 PL - United States TA - J Cereb Blood Flow Metab JT - Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism JID - 8112566 SB - IM MH - Blood-Brain Barrier/*metabolism MH - *Drug Delivery Systems MH - Endothelial Cells/metabolism MH - Humans MH - Microbubbles/*therapeutic use PMC - PMC8721781 OTO - NOTNLM OT - Focused ultrasound OT - blood-brain barrier OT - cellular effects OT - molecular effects OT - neurovascular unit COIS- Declaration of conflicting interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2021/09/24 06:00 MHDA- 2022/02/09 06:00 PMCR- 2022/09/22 CRDT- 2021/09/23 05:31 PHST- 2021/09/24 06:00 [pubmed] PHST- 2022/02/09 06:00 [medline] PHST- 2021/09/23 05:31 [entrez] PHST- 2022/09/22 00:00 [pmc-release] AID - 10.1177_0271678X211046129 [pii] AID - 10.1177/0271678X211046129 [doi] PST - ppublish SO - J Cereb Blood Flow Metab. 2022 Jan;42(1):3-26. doi: 10.1177/0271678X211046129. Epub 2021 Sep 22.