Sunday
2:00 pm - 9:00 pm
Arrival and Check-in
6:00 pm - 7:00 pm
Dinner
7:30 pm - 7:40 pm
Introductory Comments by GRC Staff / Welcome and Introduction from the Chairs
7:40 pm - 9:30 pm
Keynote Session: The Pathway From the Lab to the Clinic
Discussion Leader: Diane Merry (Thomas Jefferson University, United States)
7:40 pm - 7:50 pm
Introduction by Discussion Leader
7:50 pm - 8:25 pm
Sarah Tabrizi (University College London, United Kingdom)
"Potential Disease-Modifying Therapies for Huntington's Disease: Lessons Learned and Future Opportunities"
8:25 pm - 8:35 pm
Discussion
8:35 pm - 9:10 pm
Kenneth (Kurt) Fischbeck (National Institute of Neurological Disorders and Stroke, National Institutes of Health, United States)
"Developing Treatment for Spinal and Bulbar Muscular Atrophy"
9:10 pm - 9:20 pm
Discussion
9:20 pm - 9:30 pm
General Discussion
Monday
7:30 am - 8:30 am
Breakfast
9:00 am - 12:30 pm
Repeat Expansions: Discovery, Diagnosis and Dynamics
Discussion Leader: Christopher Pearson (The Hospital for Sick Children, Canada)
9:00 am - 9:05 am
Introduction by Discussion Leader
9:05 am - 9:25 am
Melissa Gymrek (University of California San Diego, United States)
"Genome-Wide Analysis Identifies Population-Specific Triplet Repeat Expansions"
9:25 am - 9:35 am
Discussion
9:35 am - 9:55 am
Paul Lockhart (Murdoch Children's Research Institute, Australia)
"Advances in Repeat Expansion Disorders: New Tools for Gene Discovery and Diagnostics"
9:55 am - 10:05 am
Discussion
10:05 am - 10:25 am
Marc Ciosi (University of Glasgow, United Kingdom)
"Sequence Structure and Somatic Mosaicism of the HTT Repeat and Other CAG/CTG Repeat Expansion Loci"
10:25 am - 10:35 am
Discussion
10:35 am - 11:00 am
Coffee Break
11:00 am - 11:10 am
Lien Nguyen (University of Florida, United States)
"Isolation and Detection of a Novel Repeat Expansion for Alzheimer’s Disease"
11:10 am - 11:15 am
Discussion
11:15 am - 11:25 am
Yaping Joyce Liao (Stanford University, United States)
"Autosomal Dominant Optic Disc Drusen as a CAG Repeat Disorder"
11:25 am - 11:30 am
Discussion
11:30 am - 11:40 am
Ben Weisburd (Broad Institute, United States)
"CAG Repeat Expansion in EP400 is a Candidate Causal Variant for Cerebellar Ataxia in a European Family"
11:40 am - 11:45 am
Discussion
11:45 am - 11:55 am
Arianna Tucci (Queen Mary University London, United Kingdom)
"HTT Repeat Instability in Family Trios in the 100,000 Genomes Project"
11:55 am - 12:00 pm
Discussion
12:00 pm - 12:10 pm
Galen Wright (University of Manitoba, Canada)
"Genomic Characterization of Huntington Disease Genetic Modifiers Informs Drug Target Tractability"
12:10 pm - 12:15 pm
Discussion
12:15 pm - 12:30 pm
General Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
3:00 pm - 4:00 pm
The GRC Power Hour™
The GRC Power Hour™ is designed to address diversity and inclusion in the scientific workplace by providing a safe environment for informal and meaningful conversations amongst colleagues of all career stages. The program supports the professional growth of all members of our communities, including ethnicity, race and/or gender identity by providing an open forum for discussion and mentoring.
Organizers: Ghazaleh Sadri-Vakili (Massachusetts General Hospital, United States) and Michelle Gray (University of Alabama at Birmingham, United States)
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Modifiers of Repeat Instability and Cellular Toxicity
Discussion Leader: X. William Yang (University of California, Los Angeles, United States)
7:30 pm - 7:35 pm
Introduction by Discussion Leader
7:35 pm - 7:55 pm
Anna Pluciennik (Thomas Jefferson University, United States)
"Crosstalk Between DNA Repair Systems in CAG Repeat Expansion"
7:55 pm - 8:05 pm
Discussion
8:05 pm - 8:25 pm
Vincent Dion (UK Dementia Research Insitute at Cardiff University, United Kingdom)
"Cas9 Nickase-Induced Contraction of Expanded CAG/CTG Repeats"
8:25 pm - 8:35 pm
Discussion
8:35 pm - 8:45 pm
Terence Gall-Duncan (Hospital for Sick Children, Canada)
"Antagonistic Roles of Canonical and Alternative RPA in Tandem CAG Repeat Diseases"
8:45 pm - 8:50 pm
Discussion
8:50 pm - 9:00 pm
Ihn Sik Seong (Harvard Medical School/MGH, United States)
"Ribonucleoside-Diphosphate Reductase Subunit M2 B (RRM2B) as a Genetic Modifier in Huntington’s Disease"
9:00 pm - 9:05 pm
Discussion
9:05 pm - 9:15 pm
Biswarathan Ramani (University of California San Francisco, United States)
"CRISPR-Based Screens to Define Endogenous Molecular Chaperones that Modify Polyglutamine Protein Aggregation in Different Cellular Compartments"
9:15 pm - 9:20 pm
Discussion
9:20 pm - 9:30 pm
General Discussion
Tuesday
7:30 am - 8:30 am
Breakfast
8:30 am - 9:00 am
Group Photo
9:00 am - 12:30 pm
Cell Type Specific Vulnerabilities to Circuit Dysfunction
Discussion Leader: Harry Orr (University of Minnesota, United States)
9:00 am - 9:05 am
Introduction by Discussion Leader
9:05 am - 9:25 am
Steve McCarroll (Harvard Medical School; Broad Institute, United States)
"Somatic CAG-Repeat Expansion and Resulting Biological Changes in Human Brain Cells"
9:25 am - 9:35 am
Discussion
9:35 am - 9:55 am
Brent Fitzwalter (MIT, United States)
"Single-Cell Dissection of the Human Striatum and Cerebellum Reveals Intrinsic Vulnerabilities of GABAergic Projection Neurons in CAG Triplet Repeat Disorders"
9:55 am - 10:05 am
Discussion
10:05 am - 10:15 am
Kert Matlik (The Rockefeller University, United States)
"Cell Type Specific CAG Repeat Expansions and Toxicity of Mutant Huntingtin in Human Striatum"
10:15 am - 10:20 am
Discussion
10:20 am - 10:45 am
Coffee Break
10:45 am - 11:05 am
Janghoo Lim (Yale University, United States)
"Elucidating Cellular Interplay and Molecular Mechanisms in SCA1 Neurodegeneration"
11:05 am - 11:15 am
Discussion
11:15 am - 11:25 am
Hayley McLoughlin (University of Michigan, United States)
"Deficits in Oligodendrocyte Differentiation Found Early in SCA3 Disease Pathogenesis"
11:25 am - 11:30 am
Discussion
11:30 am - 11:40 am
Bianca Brenha (Case Western Reserve University, United States)
"Study of SBMA Mutant AR in Isogenic Human Induced Pluripotent Stem Cell-Derived Motor Neurons and Skeletal Muscle"
11:40 am - 11:45 am
Discussion
11:45 am - 11:55 am
Ashley Robbins (Children's Hospital of Philadelphia, United States)
"Highly Multiplexed Single Nuclei RNA-seq of zQ175 Mouse Model Identifies Region-Specific Signatures of HD Disease Progression"
11:55 am - 12:00 pm
Discussion
12:00 pm - 12:10 pm
Roy Maimon (UCSD, United States)
""Cajal's Challenge Accepted: Generating New Neurons in the Adult Healthy and Diseased Brain"."
12:10 pm - 12:15 pm
Discussion
12:15 pm - 12:30 pm
General Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Altered RNA and Protein Metabolism
Discussion Leader: Laura Ranum (University of Florida College of Medicine, United States)
7:30 pm - 7:35 pm
Introduction by Discussion Leader
7:35 pm - 7:55 pm
Gillian Bates (University College London, United Kingdom)
"The Incomplete Splicing of the Huntingtin Transcript"
7:55 pm - 8:05 pm
Discussion
8:05 pm - 8:25 pm
Eric Wang (University of Florida, United States)
"Repeat Expansions Instigate Supply Chain Issues in the Nucleus and Cytoplasm"
8:25 pm - 8:35 pm
Discussion
8:35 pm - 8:45 pm
Eric Reits (University of Amsterdam, The Netherlands)
"The Role of Ubiquitin in Mutant PolyQ Protein Degradation"
8:45 pm - 8:50 pm
Discussion
8:50 pm - 9:00 pm
Monica Banez Coronel (University of Florida, United States)
"Toxic Sense and Antisense RAN Proteins Accumulate in the CAG:CTG Polyglutamine Spinocerebellar Ataxias"
9:00 pm - 9:05 pm
Discussion
9:05 pm - 9:15 pm
Hannah Shorrock (University at Albany, United States)
"Widespread Alternative Splicing is a Presymptomatic Transcriptomic Hallmark of CAG Expansion Spinocerebellar Ataxias"
9:15 pm - 9:20 pm
Discussion
9:20 pm - 9:30 pm
General Discussion
Wednesday
7:30 am - 8:30 am
Breakfast
9:00 am - 12:30 pm
Normal Protein Function and New Mechanisms of Dysfunction in Disease
Discussion Leader: Erich Wanker (Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Germany)
9:00 am - 9:05 am
Introduction by Discussion Leader
9:05 am - 9:25 am
Sandrine Humbert (Grenoble Institute of Neurosciences (INSERM U1216), Université Grenoble Alpes, France)
"Huntington Disease: From Abnormal Brain Development to Late Onset"
9:25 am - 9:35 am
Discussion
9:35 am - 9:55 am
Patrícia Maciel (University of Minho, Portugal)
"Ataxin-3: A Deubiquitylase and its Links to Neurodegeneration"
9:55 am - 10:05 am
Discussion
10:05 am - 10:15 am
Ji-Joon Song (Korea Advanced Institute of Science and Technology, South Korea)
"Cryo-ET structure of Huntingtin Actin-Filament Complex"
10:15 am - 10:20 am
Discussion
10:20 am - 10:45 am
Coffee Break
10:45 am - 11:05 am
Albert La Spada (UC Irvine, United States)
"Delineating Novel Pathways of PolyQ Neurodegeneration in Cerebellar Ataxias: Lessons From SCA7"
11:05 am - 11:15 am
Discussion
11:15 am - 11:35 am
Baskar Bakthavachalu (Indian Institute of Technology Mandi, India)
"Structured and Disordered Domains Antagonize to Balance Neuronal Ribonucleoprotein Granule Dynamics"
11:35 am - 11:40 am
Discussion
11:40 am - 11:50 am
Carlo Rinaldi (University of Oxford, United Kingdom)
"Unravelling the Mechanisms of Transcriptional Dysregulation in Spinal and Bulbar Muscular Atrophy"
11:50 am - 11:55 am
Discussion
11:55 am - 12:05 pm
Vikram Shakkottai (UT Southwestern Medical Center, United States)
"Engagement of the Unfolded Protein Response Prevents Calcium Dyshomeostasis and Explains Late Disease Onset in Spinocerebellar Ataxia Type 6"
12:05 pm - 12:10 pm
Discussion
12:10 pm - 12:20 pm
Charlene Smith (University of California, Irvine, United States)
"PIAS1 as a Potential Therapeutic Target for HD: Ultrastructure and Function"
12:20 pm - 12:25 pm
Discussion
12:25 pm - 12:30 pm
General Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Beyond CAG: Other Repeats and Intersecting Mechanisms
Discussion Leader: Henry Paulson (University of Michigan, United States)
7:30 pm - 7:35 pm
Introduction by Discussion Leader
7:35 pm - 7:55 pm
Henry Houlden (University College London (UCL), United Kingdom)
"Insights Into RFC1 CANVAS Spectrum Disorder"
7:55 pm - 8:05 pm
Discussion
8:05 pm - 8:25 pm
Alice Davidson (University College London (UCL), United Kingdom)
"TCF4 Triplet Repeat-Mediated Fuchs Endothelial Corneal Dystrophy: Molecular Insights into a Common Cause of Age-Related Visual Impairment"
8:25 pm - 8:35 pm
Discussion
8:35 pm - 8:55 pm
Nicolas Charlet (IGBMC, France)
"Translation of GGC Repeats Located in Genomic Sequences Annotated as “Non-Coding” Into Novel and Toxic PolyGlycine Proteins in Neurodegenerative and Neuromuscular Diseases"
8:55 pm - 9:05 pm
Discussion
9:05 pm - 9:15 pm
Ricardo Mouro Pinto (Massachusetts General Hospital / Harvard Medical School, United States)
"Genetic Modifiers of Somatic CAG and GAA Repeat Expansions in HD and Friedreich Ataxia Mouse Models"
9:15 pm - 9:20 pm
Discussion
9:20 pm - 9:30 pm
General Discussion
Thursday
7:30 am - 8:30 am
Breakfast
8:30 am - 9:00 am
Business Meeting
Nominations for the Next Vice Chair(s); Complete the GRC Evaluation Forms; Discuss Future Dates and Venue; Election of the Next Vice Chair(s)
9:00 am - 12:30 pm
Therapeutics I: Biological Insights and Novel Strategies
Discussion Leader: Leslie Thompson (University of California, Irvine, United States)
9:00 am - 9:05 am
Introduction by Discussion Leader
9:05 am - 9:25 am
Anastasia Khvorova (University of Massachusetts Medical School, United States)
"RNAi-Based Modulation of HTT mRNA Variants and Somatic Repeat Expansion in Huntington’s Disease"
9:25 am - 9:35 am
Discussion
9:35 am - 9:55 am
Nicole Déglon (Lausanne University Hospital (CHUV), Switzerland)
"HTT Inactivation Strategies and Long-Term Effects in Adult Mice"
9:55 am - 10:05 am
Discussion
10:05 am - 10:15 am
Kimberly Kegel-Gleason (Massachusetts General Hospital, United States)
"Mutant Huntingtin Lowering Averts Changes in Lipids Important for Synapse Function and White Matter Maintenance in the LacQ140 Mouse Model"
10:15 am - 10:20 am
Discussion
10:20 am - 10:45 am
Coffee Break
10:45 am - 10:55 am
Marta Prieto Garcia (Universite Grenoble Alpes (UGA), France)
"Restoring Energy Sources in Huntington’s Disease to Rescue Axonal Transport and Slow Down Neurodegeneration"
10:55 am - 11:00 am
Discussion
11:00 am - 11:10 am
Kevin Leandro (Center for Neuroscience and Cell Biology, Portugal)
"Extracellular Vesicles-Mediated Delivery of CRISPR/Cas9 Systems to Treat Machado-Joseph Disease"
11:10 am - 11:15 am
Discussion
11:15 am - 11:25 am
Annalucia Darbey (University College London, United Kingdom)
"A Muscle Targeted Gene Therapy for Spinal & Bulbar Muscular Atrophy"
11:25 am - 11:30 am
Discussion
11:30 am - 11:40 am
Kelly Fagan (University of Pennsylvania, United States)
"Gene Editing Strategies to Treat Spinocerebellar Ataxia Type 1"
11:40 am - 11:45 am
Discussion
11:45 am - 11:55 am
Jaehong Suh (Massachusetts General Hospital / Harvard Medical, United States)
"BACE1 Inhibition as Therapeutic Avenue for Spinocerebellar Ataxia"
11:55 am - 12:00 pm
Discussion
12:00 pm - 12:10 pm
Natallia Kalinava (CHDI Management for CHDI Foundation, United States)
"Optimizing Assays for Accurate Reliable Measurement of NfL and Clinical Validation of the Measurements"
12:10 pm - 12:15 pm
Discussion
12:15 pm - 12:30 pm
General Discussion
12:30 pm - 1:30 pm
Lunch
1:30 pm - 4:00 pm
Free Time
4:00 pm - 6:00 pm
Poster Session
6:00 pm - 7:00 pm
Dinner
7:30 pm - 9:30 pm
Therapeutics II: Drug Development to the Clinic
Discussion Leader: Anne Rosser (Cardiff University, United Kingdom)
7:30 pm - 7:35 pm
Introduction by Discussion Leader
7:35 pm - 7:55 pm
Caroline Benn (LoQus23 Therapeutics, United Kingdom)
"Drugging DNA Damage Repair Proteins for Trinucleotide Repeat Expansion Diseases"
7:55 pm - 8:05 pm
Discussion
8:05 pm - 8:15 pm
Travis Wager (Rgenta Therapeutics, United States)
"A Small Molecule Approach to Treat the Root Cause of Repeat Expansion Disease"
8:15 pm - 8:20 pm
Discussion
8:20 pm - 8:40 pm
Leontien van der Bent (uniQure, The Netherlands)
"AMT-130: An Investigational Gene Therapy for HD - from Preclinical to Phase 1/2 Clinical Trials"
8:40 pm - 8:50 pm
Discussion
8:50 pm - 9:10 pm
David Lynch (Children's Hospital of Philadelphia, United States)
"Omaveloxolone: an Approved Agent for Friedreich Ataxia"
9:10 pm - 9:20 pm
Discussion
9:20 pm - 9:30 pm
General Discussion
Friday
7:30 am - 8:30 am
Breakfast
9:00 am
Departure