|Title||Virus-mediated delivery of antibody targeting TAR DNA-binding protein-43 mitigates associated neuropathology.|
|Publication Type||Journal Article|
|Year of Publication||2019|
|Authors||Pozzi, Silvia, Sai Sampath Thammisetty, Philippe Codron, Reza Rahimian, Karine Valérie Plourde, Geneviève Soucy, Christine Bareil, Daniel Phaneuf, Jasna Kriz, Claude Gravel, and Jean-Pierre Julien|
|Journal||J Clin Invest|
|Date Published||2019 Feb 25|
The cytoplasmic aggregation of TAR DNA-binding protein-43 (TDP-43) is a hallmark of degenerating neurons in amyotrophic lateral sclerosis (ALS) and subsets of frontotemporal dementia (FTD). In order to reduce TDP-43 pathology, we generated single-chain (scFv) antibodies against the RNA recognition motif 1 (RRM1) of TDP-43, which is involved in abnormal protein self-aggregation and interaction with p65 NF-κB. Virus-mediated delivery into the nervous system of a scFv antibody, named VH7Vk9, reduced microgliosis in a mouse model of acute neuroinflammation and mitigated cognitive impairment, motor defects, TDP-43 proteinopathy, and neuroinflammation in transgenic mice expressing ALS-linked TDP-43 mutations. These results suggest that antibodies targeting the RRM1 domain of TDP-43 might provide new therapeutic avenues for the treatment of ALS and FTD.
|Alternate Journal||J. Clin. Invest.|