Dr. Butchbach's research interests focus on the understanding the molecular mechanisms that cause motor neurons in the spinal cord to degenerate. As their research requires the development and use of multiple systems to model motor neurons, they use multiple approaches and techniques—including those based on biochemistry, genetics, cell biology, neuroanatomy, pharmacology, behavior and mathematical biology—in their investigations. These approaches aim to provide a comprehensive understanding of how different disease-associated gene mutations affect motor neuron function. This information is then used to develop and test novel therapeutic strategies to help prevent motor neuron degeneration. Their focus is on early-onset, genetic motor neuron diseases such as spinal muscular atrophy (SMA), distal hereditary motor neuropathies (HMNs), Charcot-Marie-Tooth peripheral neuropathies and certain forms of amyotrophic lateral sclerosis (ALS). This approach can also be applied to other neurodegenerative diseases as well as to acquired neuronal injury, which would likely yield new collaborative initiatives with other research programs focusing on biochemistry, neuroscience, molecular genetics and pharmacology.
Prior and current work on motor neuron diseases (MNDs) use a reductionist approach wherein a single gene was associated with a specific MND. Previous research on MNDs has focused on a single disorder, like SMA, which has led to therapeutic options for this rare disease. Unfortunately, therapies specific to SMA have not been effective against other pediatric-onset MNDs. An alternative to a reductionist approach which focuses on a single motor neuron disease, their approach uses a network-based strategy that characterizes a cluster of interacting genes/proteins which are linked to a specific function or phenotype—in this case, motor unit function. Loss of or alteration in one component within this network (for example, loss of SMN1 in SMA), the behavior of the entire network is altered thereby affecting motor function. Identification of a therapeutic agent could potentially activate one of the undamaged components within this network could partially compensate for the diminished function. This network-based approach provides novel insights into the biology of motor neurons and how they are affected in pediatric-onset MNDs as well as expanding the therapeutic repertoire for many of these disorders.
Matthew E.R. Butchbach, PhD
Visiting Assistant Professor, Biochemistry, Department of Biological and Chemical Sciences, Chemistry
Visiting Assistant Professor, Biochemistry, Department of Biological and Chemical Sciences, Chemistry
Research & Clinical Interests
Education
PhD - Ohio State University, Columbus, Ohio - 2003
MS - Ohio State University, Columbus, Ohio - 2000
Publications
- Spinal muscular atrophy among US Hutterites: Phenotype variability in the setting of conserved ancestral haplotype and 4 SMN2 copies
- The effect of coadministration of D156844 and AR42 (REC-2282) on the survival and motor phenotype of mice with spinal muscular atrophy
- Evaluation of the orally bioavailable 4-phenylbutyrate-tethered trichostatin A analogue AR42 in models of spinal muscular atrophy
- Biological networks and complexity in early-onset motor neuron diseases
- Effects of Inhibitors of SLC9A-Type Sodium-Proton Exchangers on Survival Motor Neuron 2 (SMN2) mRNA Splicing and ExpressionS