Dawn Reyna
Chief Operations Officer

Ms. Dawn Reyna joined TSRL, Inc. in 2007 as Quality Assurance Unit Manager and was named Senior Director of Laboratory Services in 2014. She was promoted to COO in November 2018. Prior to her joining TSRL Inc., Dawn held management positions within quality assurance at Pfizer, a global drug development firm, and MPI Research, an early clinical-stage contract research organization. Dawn brings over 18 years of research and quality assurance expertise to TSRL, Inc., having managed GLP-compliant quality systems in fast, results-driven environments. Dawn is a registered Quality Assurance Professional in Good Laboratory Practices and received her B.S. in Biology from Western Michigan University.

Dawn’s leadership skills and experience are evident by her ability to deliver high-quality results that meet internal and collaborator objectives.

John Domagala, PhD
Senior Scientific Advisor

Dr. John Domagala has worked with TSRL as a consultant and scientific advisor since 2010.  John was trained as a synthetic medicinal chemist and has 45 years of experience in antiinfective drug design, microbiology and drug development.  John spent 30 years and Warner-Lambert/Pfizer working on multiple drug classes and mechanisms.  He became the Senior Director of Infectious diseases with responsibility for over 30 projects form screening to IND submission.  He served on the In-License Team evaluating over 100 drug opportunities at all stages of development leading to the acquisition of several compounds and two companies.  After Pfizer closed its doors in Ann Arbor John became a consultant guiding Universities and Biotech Companies through the process of Antibacterial and Antiviral drug development.  With Pfizer and as a consultant John has served on multiple interdisciplinary teams tasked with taking compounds from Lead to IND, learning the importance of fit for purpose development studies within budget constraints.   John brings this knowledge and experience with leadership capabilities to TSRL.

Shelly Sowers
Chief Financial Officer

Ms. Shelly Sowers is a Certified Public Accountant in the State of Michigan for the last 20 years.  She obtained her undergraduate accounting degree from Michigan State University and an MBA from Wayne State University.  She was with Plante & Moran in Southfield for approx. 8 years doing audit and tax related assignments for privately held companies, primarily in the manufacturing/life sciences sector.  After Plante & Moran, she worked for 8 years as controller and then CFO of Ash Stevens, a contract/development manufacturing organization that worked in small molecule API manufacturing and also research and development contracts with the US government.  She has been through five ERP implementations including Epicor, SAP and Microsoft Dynamics.  Shelly also has experience in human resources with but not limited to employee benefits, 401k and pension plans. 

John Takyi-Williams, PhD

Senior Scientist, Analytical

Dr. John Takyi-Williams joined the TSRL team in January 2024. John received his Ph.D. from Nanyang Technological University, Singapore. John has over 5 years of experience in research and development, particularly in pharmacokinetics and bioanalysis. His work, which has garnered over 100 citations on Google Scholar, involves developing LC-MS analytical methods to support preclinical and clinical studies. John has held esteemed fellowships and awards, including the University of Michigan Postdoctoral Fellowship and the Singapore Government Scholarship Award. John brings innovative research capabilities, profound technical expertise, and a collaborative spirit to TSRL.

Dawn Kuszynski, PhD Research/Project Scientist, In Vivo Laboratory

Dr. Dawn Kuszynski joined the TSRL team in June 2022 after completing her Doctorate of Philosophy, Pharmacology and Toxicology, and Biomedical Toxicology from Michigan State University. Dawn is TSRL’s In Vivo Research and Project Scientist. Dawn has a strong background in cardiovascular and cancer research. Her work has encompassed drug discovery and development of both antiplatelet drugs and chemotherapeutics. During her Ph.D. program, Dawn was awarded an F31 training grant from NHLBI to examine the adverse bleeding effects of the antiplatelet drug, clopidogrel (Plavix®). Her work led to multiple peer-reviewed publications. Dawn brings excellent teamwork, collaboration, leadership, and communication skills to TSRL. In the next few years, Dawn will be training to serve as PI on grants at TSRL.

Emily Oliver

Associate Research/Project Scientist

Ms. Emily Oliver joined TSRL in March 2023. Emily graduated with a Bachelor of Science from the University of Michigan. Emily has distinguished herself academically with an Honors Designation from the University of Michigan, alongside several technical certificates from Washtenaw Community College. Her professional expertise encompasses compliance with SOPs, proficient handling of biological samples in compliance with safety protocols, and execution of molecular diagnostics procedures, such as DNA/RNA extractions and RT-PCR analysis. Emily demonstrates a strong work ethic and organizational skills, contributing significantly to team efficiency and productivity.

Megan DeVries Administrative Assistant

Ms. Megan DeVries joined TSRL, Inc. in January 2022 as an Administrative Assistant. Prior to joining TSRL, Inc., Megan was a marketing intern for a start-up company in Ann Arbor through Eastern Michigan University’s Center for Digital Engagement, Digital Summer Clinic program. Through the program, she developed effective planning, project management, and communication skills that she now deploys efficiently in her daily tasks at TSRL. Megan obtained her Bachelor’s degree from Eastern Michigan University in marketing with a minor in communication.