Pharmacological Stimulation of Phagocytosis Enhances Amyloid Plaque Clearance; Evidence from a Transgenic Mouse Model of ATTR Neuropathy

Bibliographic Details
Title: Pharmacological Stimulation of Phagocytosis Enhances Amyloid Plaque Clearance; Evidence from a Transgenic Mouse Model of ATTR Neuropathy
Authors: Eleni Fella, Kleitos Sokratous, Revekka Papacharalambous, Kyriacos Kyriacou, Joy Phillips, Sam Sanderson, Elena Panayiotou, Theodoros Kyriakides
Source: Frontiers in Molecular Neuroscience, Vol 10 (2017)
Publisher Information: Frontiers Media S.A., 2017.
Publication Year: 2017
Collection: LCC:Neurosciences. Biological psychiatry. Neuropsychiatry
Subject Terms: amyloidosis, TTR, C5a receptor, macrophages, amyloid clearance, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
More Details: Hereditary ATTR V30M amyloidosis is a lethal autosomal dominant sensorimotor and autonomic neuropathy caused by deposition of aberrant transthyretin (TTR). Immunohistochemical examination of sural nerve biopsies in patients with amyloidotic neuropathy show co-aggregation of TTR with several proteins; including apolipoprotein E, serum amyloid P and components of the complement cascade. Complement activation and macrophages are increasingly recognized to play a crucial role in amyloidogenesis at the tissue bed level. In the current study we test the effect of two C5a receptor agonists and a C5a receptor antagonist (PMX53) on disease phenotype in ATTR V30M mice. Our results indicate that amyloid deposition was significantly reduced following treatment with the C5a receptor agonists, while treatment with the antagonist resulted in a significant increase of amyloid load. Administration of the C5a receptor agonists triggered increased recruitment of phagocytic cells resulting in clearance of amyloid deposits.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1662-5099
Relation: http://journal.frontiersin.org/article/10.3389/fnmol.2017.00138/full; https://doaj.org/toc/1662-5099
DOI: 10.3389/fnmol.2017.00138
Access URL: https://doaj.org/article/9290f31403a94e17b34a03d819cf7703
Accession Number: edsdoj.9290f31403a94e17b34a03d819cf7703
Database: Directory of Open Access Journals
More Details
ISSN:16625099
DOI:10.3389/fnmol.2017.00138
Published in:Frontiers in Molecular Neuroscience
Language:English