PMID- 24503862 OWN - NLM STAT- MEDLINE DCOM- 20141228 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 9 IP - 2 DP - 2014 TI - A monoclonal antibody TrkB receptor agonist as a potential therapeutic for Huntington's disease. PG - e87923 LID - 10.1371/journal.pone.0087923 [doi] LID - e87923 AB - Huntington's disease (HD) is a devastating, genetic neurodegenerative disease caused by a tri-nucleotide expansion in exon 1 of the huntingtin gene. HD is clinically characterized by chorea, emotional and psychiatric disturbances and cognitive deficits with later symptoms including rigidity and dementia. Pathologically, the cortico-striatal pathway is severely dysfunctional as reflected by striatal and cortical atrophy in late-stage disease. Brain-derived neurotrophic factor (BDNF) is a neuroprotective, secreted protein that binds with high affinity to the extracellular domain of the tropomyosin-receptor kinase B (TrkB) receptor promoting neuronal cell survival by activating the receptor and down-stream signaling proteins. Reduced cortical BDNF production and transport to the striatum have been implicated in HD pathogenesis; the ability to enhance TrkB signaling using a BDNF mimetic might be beneficial in disease progression, so we explored this as a therapeutic strategy for HD. Using recombinant and native assay formats, we report here the evaluation of TrkB antibodies and a panel of reported small molecule TrkB agonists, and identify the best candidate, from those tested, for in vivo proof of concept studies in transgenic HD models. FAU - Todd, Daniel AU - Todd D AD - BioFocus, Saffron Walden, United Kingdom. FAU - Gowers, Ian AU - Gowers I AD - BioFocus, Saffron Walden, United Kingdom. FAU - Dowler, Simon J AU - Dowler SJ AD - BioFocus, Saffron Walden, United Kingdom. FAU - Wall, Michael D AU - Wall MD AD - BioFocus, Saffron Walden, United Kingdom. FAU - McAllister, George AU - McAllister G AD - BioFocus, Saffron Walden, United Kingdom. FAU - Fischer, David F AU - Fischer DF AD - BioFocus, Leiden, Netherlands. FAU - Dijkstra, Sipke AU - Dijkstra S AD - Galapagos, Leiden, Netherlands. FAU - Fratantoni, Silvina A AU - Fratantoni SA AD - Galapagos, Leiden, Netherlands. FAU - van de Bospoort, Rhea AU - van de Bospoort R AD - Galapagos, Leiden, Netherlands. FAU - Veenman-Koepke, Jessica AU - Veenman-Koepke J AD - Galapagos, Leiden, Netherlands. FAU - Flynn, Geraldine AU - Flynn G AD - Galapagos, Leiden, Netherlands. FAU - Arjomand, Jamshid AU - Arjomand J AD - CHDI Management/CHDI Foundation, Princeton, New Jersey, United States of America ; CHDI Management/CHDI Foundation, Los Angeles, California, United States of America. FAU - Dominguez, Celia AU - Dominguez C AD - CHDI Management/CHDI Foundation, Princeton, New Jersey, United States of America ; CHDI Management/CHDI Foundation, Los Angeles, California, United States of America. FAU - Munoz-Sanjuan, Ignacio AU - Munoz-Sanjuan I AD - CHDI Management/CHDI Foundation, Princeton, New Jersey, United States of America ; CHDI Management/CHDI Foundation, Los Angeles, California, United States of America. FAU - Wityak, John AU - Wityak J AD - CHDI Management/CHDI Foundation, Princeton, New Jersey, United States of America ; CHDI Management/CHDI Foundation, Los Angeles, California, United States of America. FAU - Bard, Jonathan A AU - Bard JA AD - CHDI Management/CHDI Foundation, Princeton, New Jersey, United States of America ; CHDI Management/CHDI Foundation, Los Angeles, California, United States of America. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140204 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Antibodies, Monoclonal) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Neuroprotective Agents) RN - EC 2.7.10.1 (Receptor, trkB) SB - IM MH - Animals MH - Antibodies, Monoclonal/chemistry/*pharmacology MH - Brain-Derived Neurotrophic Factor/metabolism MH - Cell Death/drug effects MH - Cell Line MH - Cells, Cultured MH - Corpus Striatum/cytology/drug effects MH - Disease Models, Animal MH - Drug Evaluation, Preclinical MH - Humans MH - Huntington Disease/drug therapy/*metabolism MH - Mice, Transgenic MH - Neurons/drug effects/metabolism MH - Neuroprotective Agents/chemistry/pharmacology MH - Rats MH - Receptor, trkB/*agonists/*metabolism MH - Signal Transduction/drug effects PMC - PMC3913682 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2014/02/08 06:00 MHDA- 2014/12/30 06:00 PMCR- 2014/02/04 CRDT- 2014/02/08 06:00 PHST- 2013/11/18 00:00 [received] PHST- 2013/12/20 00:00 [accepted] PHST- 2014/02/08 06:00 [entrez] PHST- 2014/02/08 06:00 [pubmed] PHST- 2014/12/30 06:00 [medline] PHST- 2014/02/04 00:00 [pmc-release] AID - PONE-D-13-48531 [pii] AID - 10.1371/journal.pone.0087923 [doi] PST - epublish SO - PLoS One. 2014 Feb 4;9(2):e87923. doi: 10.1371/journal.pone.0087923. eCollection 2014.