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Get to know the people leading the CirQuest Labs Team!

Lisa K Jennings, PhD

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CEO and Founder

Lisa K Jennings, PhD founded CirQuest Labs in 2008 as an extension of her successful basic and translational research program as a faculty member at the University of Tennessee Health Science Center. An internationally recognized leader in anti-platelet and anticoagulant therapies, she has served on numerous industry scientific and clinical development advisory boards. She has been instrumental in assisting industry in the design and implementation of mechanistic studies and clinical trials in the vascular biology field, including CAD, stroke, PAD, inflammatory and metabolic diseases, hematology, and medical device fields.

Together, we aim to offer the best customized life science services while expanding our capabilities to remain a recognized leader in immunology, oncology, and hematology.

Jayaprakash Kotha, MBBS, PhD

Senior Scientific Officer

Dr. Kotha attended medical school at the Guntur Medical College & Hospital, India and doctoral studies at the University of Tennessee Health Science Center. During his early research, he worked as a clinical virologist at the Christian Medical College & Hospital, Vellore, India. During early days of his research Dr. Kotha worked in molecular epidemiology and immunobiology of retroviruses where he developed valuable serological and molecular diagnostic tools for the diagnostic and prognostic assessment of various types of retroviral diseases. 

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Prior to joining CirQuest, Mark was the founder and CEO of Main Street Clinical Laboratory, Inc. Starting in 2009, Mark’s team grew this company from local startup to a regional player in the Southeast. Mark is a Certified Public Accountant and holds an MBA from Auburn University. He completed his Bachelor of Accountancy from the University of Mississippi.





David K. Jennings, MD

Medical Director

With over 30 years of clinical experience, Dr. David Jennings provides medical supervision and knowledge for clinical projects at CirQuest Labs. Dr. Jennings has been serving the Memphis community and surrounding areas since he received his Medical Doctorate from the University of Tennessee in 1979. While his focus is providing the highest quality health care for his patients, he is also involved in the education of fellow healthcare providers in the Memphis community through his position as Clinical Assistant Professor at the University of Tennessee Health Science Center.

Mark Vines,CPA

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Chief Financial Officer 

Mark Vines is a respected financial executive with a 20-year career covering both small and large pharmaceutical companies as well as clinical laboratory executive experience. As CFO of CirQuest Labs, LLC, Mark oversees all financial functions of the company, including planning and analysis, reporting, treasury, accounting and finance.

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Prior to joining CirQuest, Mark was the founder and CEO of Main Street Clinical Laboratory, Inc. Starting in 2009, Mark’s team grew this company from local startup to a regional player in the Southeast. Mark is a Certified Public Accountant and holds an MBA from Auburn University. He completed his Bachelor of Accountancy from the University of Mississippi.





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Prior to joining CirQuest, Mark was the founder and CEO of Main Street Clinical Laboratory, Inc. Starting in 2009, Mark’s team grew this company from local startup to a regional player in the Southeast. Mark is a Certified Public Accountant and holds an MBA from Auburn University. He completed his Bachelor of Accountancy from the University of Mississippi.





Laura Yacoubian, MBA

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Director of Project Management

Laura Yacoubian is a clinical research professional with 7 years of experience supporting and managing pharmaceutical and medical device clinical studies. As Director of Project Management at CirQuest Labs, LLC, Laura tracks the progress of all ongoing projects and collaborates with project teams to identify opportunities and mitigate risks to project delivery.

​Prior to joining CirQuest, Laura was the Regional Operations Manager for Smith & Nephew, Inc.’s Clinical Operations group. Laura holds an MBA from the University of Memphis. She completed her Bachelor of Arts in Psychology from Hendrix College.

Edward Hord, BSN

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Director of Operations

Mr. Hord holds an undergraduate degree in both biology and nursing. His past experiences have provided him with broad technical and operational knowledge related to the multiple aspects of planning and conducting the different stages of clinical studies including feasibility/pilot, IDE, PMA applications, advisory panel meetings, and post-approval studies. His primary role is to oversee the operations of CirQuest and to facilitate agreements and contracts as well as communication with our industry and institutional clients and collaborators.

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Dr. Jennings was also Director of the UTHSC Vascular Biology Center of Excellence and Professor of Medicine at the University of Tennessee Health Science Center (UTHSC) in Memphis, Tennessee. She had secondary appointments as Professor in the Departments of Molecular Sciences and Surgery as well as in the Joint Program of Biomedical Engineering at UTHSC and the University of Memphis. She was also the Director of the Tennessee-Arkansas-Mississippi (TAM) Clinical Research Consortium. Currently, she is a Clinical Professor in the Department of Internal Medicine at UTHSC. Dr. Jennings was also Director of the UTHSC Vascular Biology Center of Excellence and Professor of Medicine at the University of Tennessee Health Science Center (UTHSC) in Memphis, Tennessee. She had secondary appointments as Professor in the Departments of Molecular Sciences and Surgery as well as in the Joint Program of Biomedical Engineering at UTHSC and the University of Memphis. She was also the Director of the Tennessee-Arkansas-Mississippi (TAM) Clinical Research Consortium. Currently, she is a Clinical Professor in the Department of Internal Medicine at UTHSC. Dr. Jennings attended graduate school at UTHSC completing her doctoral research projects at St. Jude Children’s Research Hospital and the Gladstone Foundation Laboratories in San Francisco, CA. During her training she was instrumental in the isolation and characterization of the platelet GPIIb-IIIa receptor, the key integrin on platelets that mediates platelet thrombus formation. She completed a postdoctoral fellowship at St. Jude Children’s Research Hospital, where she was a Leon Journey Fellow, and was appointed to the faculty of UTHSC in 1985. Dr. Jennings has an established research program in the area of platelet and vascular smooth muscle cell biology, specifically the function of surface membrane receptors and associated signaling pathways. She has internationally- recognized expertise in the development, study and evaluation of antiplatelet agents and anticoagulants, including the design and conduct of the pharmacodynamic assessment of these agents in preclinical/translational studies and clinical trials. Clinical trials with which she has been involved include IMPACT, IMPACT II, PRIDE, ESPRIT, and PROTECT trials of eptifibatide, PYRAMID (YM337), ORATOR, TIMI 15A and B, PICOLO (clopidogrel), TRA-PCI, ATLAS, ROCKET-AF, TRACER, APEX, and UTHSC investigator-initiated studies via the TAM Consortium. Her other research efforts concentrate on vascular injury response and inflammation, particularly signaling pathways associated with neointimal hyperplasia and atherogenesis. In addition, she is a founding member of ARISTE Medical, LLC dedicated to reducing complications of implantable devices. Dr. Jennings is taking these years of experience and expertise in the field into product development services.





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CirQuest Labs
140 Collins Street

Memphis, TN 38112
USA

Phone: 901.866.1700

Fax: 901.866.1702

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