Aidan Products aims to provide the world with the highest quality and most effective, nutraceutical supplements available.

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Signature Biologics manufactures and distributes an array of novel, placental-derived regenerative medicine products.

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Riordan Medical Institute specializes in stem cell therapy and regenerative medicine for orthopedic conditions.

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Stem Cell Institute specializes in human umbilical cord-derived mesenchymal stem cell therapy for diseases and conditions ranging from autism to multiple sclerosis.

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Medistem is a research and production laboratory specializing in applied stem cell research using mesenchymal stem cells harvested from human umbilical cord tissue.

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Meet Our Founder

Dr. Neil Riordan, PhD

Neil Riordan, PA, PhD is one of the early pioneers and experts in applied stem cell research. Dr. Riordan founded publicly traded company Medistem Laboratories (later Medistem Inc.) which was acquired by Intrexon in 2013.

He is the founder and chairman of Medistem Panama, Inc., a leading stem cell laboratory and research facility located in the Technology Park of the prestigious City of Knowledge in Panama City, Panama. Medistem Panama (est. 2007) is at the forefront of research on the effects of adult stem cells on the course of several chronic diseases and conditions. The stem cell laboratory at Medistem Panama is fully licensed by the Ministry of Health of Panama.

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Human umbilical cord tissue-derived mesenchymal stem cells (hUCT-MSCs) that were isolated and grown at Medistem Panama to create master cell banks are currently being used in the United States. These cells serve as the starting material for cellular products used in MSC clinical trials for two Duchenne’s muscular dystrophy patients under US FDA’s designation of Investigational New Drug (IND) for single patient compassionate use. (IND 16026 DMD Single Patient) These trials are the first in the United States to use hUCT-MSCs. Translational Biosciences, a fully-owned subsidiary of Medistem Panama is currently conducting a phase I/II clinical trial for rheumatoid arthritis and has published phase I/II clinical results for autism and multiple sclerosis in Stem Cells Translational Medicine and the Journal of Translational Medicine respectively.

Dr. Riordan is founder, chairman and chief science officer of the Stem Cell Institute in Panama, which specializes in the treatment of human diseases and conditions with adult stem cells, primarily human umbilical cord tissue-derived mesenchymal stem cells. Established in 2007, Stem Cell Institute is one of the oldest, most well-known and well-respected stem cell therapy clinics in the world.

He is co-founder and chief science officer of the Riordan Medical Institute (RMI). Located in the Dallas-Fort Worth area city of Southlake, Texas, RMI specializes in the treatment of orthopedic conditions with autologous bone marrow-derived stem cells combined with amniotic tissue products developed by Dr. Riordan.

He is founder of Aidan Products, which provides health care professionals with quality nutraceuticals. Dr. Riordan’s team developed the product Stem-Kine, the only nutritional supplement that is clinically proven to increase the amount of circulating stem cells in the body for an extended period of time. Stem-Kine is currently sold in 35 countries.

Dr. Riordan is founder and CEO of Signature Biologics. Signature Biologics uses innovative techniques to manufacture human placental-derived products to support and improve the natural healing processes of the body. Proven through rigorous scientific and clinical study, it provides best-in-class products to enhance patients’ lives. The U.S. Food and Drug Administration (FDA) has approved an IND Application to proceed with the study of Signature Cord Prime™ in patients with symptomatic osteoarthritis (OA) of the knee with our Principal Investigator. Signature Cord Prime™ is the first hUC [human umbilical cord] product of its kind to receive approval to be studied in osteoarthritis of the knee.

Dr. Riordan has published more than 70 scientific articles in international peer-reviewed journals. In the stem cell arena, his colleagues and he have published more than 20 articles on multiple sclerosis, spinal cord injury, heart failure, rheumatoid arthritis, Duchenne muscular dystrophy, autism, and Charcot-Marie-Tooth syndrome. In 2007, Dr. Riordan’s research team was the first to discover and document the existence of mesenchymal-like stem cells in menstrual blood. For this discovery, his team was honored with the “Medical Article of the Year Award” from Biomed Central. Other notable journals in which Dr. Riordan has published articles include the British Journal of Cancer, Cellular Immunology, Journal of Immunotherapy, and Translational Medicine.

In addition to his scientific journal publications, Dr. Riordan has authored two books about mesenchymal stem cell therapy: Stem Cell Therapy: A Rising Tide: How Stem Cells Are Disrupting Medicine and Transforming Lives and MSC (Mesenchymal Stem Cells): Clinical Evidence Leading Medicine’s Next Frontier. Dr. Riordan has also written two scientific book chapters on the use of non-controversial stem cells from placenta and umbilical cord.

Dr. Riordan is an established inventor. He is the inventor or co-inventor on more than 25 patent families, including 11 issued patents. His team collaborates with a number of universities and institutions, including National Institutes of Health, Indiana University, University of California, San Diego, University of Utah, University of Western Ontario, and University of Nebraska.

He has made a number of novel discoveries in the field of cancer research since the mid-1990s when he collaborated with his father, Dr. Hugh Riordan, on the effects of high-dose intravenous vitamin C on cancer cells and the tumor microenvironment. This pioneering study on vitamin C’s preferential toxicity to cancer cells notably led to a 1997 patent for the treatment of cancer with vitamin C. In 2010, Dr. Riordan was granted an additional patent for a new cellular vaccine for cancer patients.

Neil Riordan, PA, PhD earned his Bachelor of Science at Wichita State University and graduated summa cum laude. He received his Master’s degree at the University of Nebraska Medical Center. Dr. Riordan completed his education by earning a Ph.D. in Health Sciences at Medical University of the Americas.

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