
Welcome to the Mackenzie Lab
The Mackenzie Lab is a pediatric neuromuscular research group at the University of Rochester dedicated to understanding and treating rare genetic diseases of the nervous system and muscle. Our work spans three core programs: myotonic dystrophy type 1 (DM1), where we study repeat-length-dependent epigenetic changes and their relationship to disease severity, test novel therapeutics, and explore CNS phenotypes in a novel mouse model of the disease (collaboration with the Thornton lab); Duchenne muscular dystrophy (DMD), including gene therapy approaches and ACE-tRNA suppression strategies (collaboration with the Lueck lab); and TANGO2 deficiency disorder, where we combine data from model organisms with that from human patients to identify novel diagnostic biomarkers and improve outcomes.
A unifying thread across our programs is improving the lives of individuals with genetic muscle disorders. Our lab combines our basic science work with direct clinical care in pediatric neuromuscular medicine, allowing us to bidirectionally move findings between the bench and the clinic.
We are grateful to all of the patients, families, and collaborators who make this research possible.
Attention Graduate Students, Undergraduate Students, & Postdocs
We are looking for highly motivated individuals who are interested in conducting research on TANGO2 deficiency disorder, Duchenne muscular dystrophy, or myotonic dystrophy type 1. Please contact Dr. Mackenzie directly for information on available positions.

Samuel J. Mackenzie, M.D., Ph.D.
Principal Investigator
Publications
View All Publications- Cross-species evaluation of TANGO2 homologs, including HRG-9 and HRG-10 in Caenorhabditis elegans, challenges a proposed role in heme trafficking.; eLife; Vol 14. 2026 Jan 08.
- SEZ6L2 Loss Disrupts Motor Coordination, Cognitive Function, and Synaptic Connectivity.; bioRxiv : the preprint server for biology. 2026 Jan 01.
- Heart Transplantation and Ventricular Assist Device in Duchenne Muscular Dystrophy: A New Era.; Pediatric transplantation; Vol 30(1), pp. e70253. 2026 Jan.
- TANGO2 deficiency disorder in a 61-year-old male with episodic weakness, rhabdomyolysis, myotonia, and a novel missense variant.; Molecular genetics and metabolism reports; Vol 44, pp. 101241. 2025 Jul 04.
Contact Us
Mackenzie Lab
601 Elmwood Ave
Rochester, NY 14642