4.5 Article

TRANSMIGRATION OF BETA AMYLOID SPECIFIC HEAVY CHAIN ANTIBODY FRAGMENTS ACROSS THE IN VITRO BLOOD-BRAIN BARRIER

期刊

NEUROSCIENCE
卷 190, 期 -, 页码 37-42

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.neuroscience.2011.05.076

关键词

blood-brain barrier; Alzheimer's disease; amyloid beta; antibody; imaging; cerebral amyloid angiopathy

资金

  1. IOP Genomics Senter [IGE05005]
  2. Center of Medical Systems Biology (CMSB2), Center for Translational Molecular Medicine (CTMM)
  3. Netherlands Consortium for Systems Biology (NCSB)
  4. Netherlands Genomics Initiative/Netherlands Organization for Scientific Research (NGI/NWO)

向作者/读者索取更多资源

Previously selected amyloid beta recognizing heavy chain antibody fragments (VHH) affinity binders derived from the Came lid heavy chain antibody repertoire were tested for their propensity to cross the blood-brain barrier (BBB) using an established in vitro BBB co-culture system. Of all tested VHH, ni3A showed highest transmigration efficiency which is, in part, facilitated by a three amino acid substitutions in its N-terminal domain. Additional studies indicated that the mechanism of transcellular passage of ni3A is by active transport. As VHH ni3A combines the ability to recognize amyloid beta and to cross the BBB, it has potential as a tool for non-invasive in vivo imaging and as efficient local drug targeting moiety in patients suffering from cerebral amyloidosis such as Alzheimer's disease (AD) and cerebral amyloid angiopathy (CAA). (C) 2011 IBRO. Published by Elsevier Ltd. All rights reserved.

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