Educational Resource
Regenerative Medicine Glossary
Essential terminology for understanding exosome therapy, tissue products, and regenerative medicine in Florida.
A
AATB
American Association of Tissue Banks. The professional organization that sets standards for tissue banking and provides accreditation to tissue establishments.
Adipose-Derived MSCs (AD-MSCs)
Mesenchymal stem cells harvested from adipose (fat) tissue. These cells are a common source for exosome production due to their abundance and regenerative properties.
Amniotic Membrane
The innermost layer of the placenta that surrounds the fetus during pregnancy. Rich in growth factors and extracellular matrix components, it's used in regenerative medicine for wound healing and tissue repair.
Autologous
Derived from the same individual. Autologous treatments use a patient's own cells or tissues, eliminating the risk of immune rejection but requiring harvesting procedures.
B
Bioactive Cargo
The therapeutic payload carried within exosomes, including proteins, lipids, mRNA, and microRNAs that facilitate cell-to-cell communication and promote regenerative processes.
C
cGMP (Current Good Manufacturing Practice)
FDA regulations ensuring that products are consistently produced and controlled according to quality standards. cGMP compliance is essential for tissue processing facilities.
cGTP (Current Good Tissue Practice)
FDA regulations specific to human cells, tissues, and cellular and tissue-based products (HCT/Ps). These regulations govern methods for preventing contamination and disease transmission.
Chondroprotective
Having the ability to protect cartilage from damage or degeneration. Exosomes with chondroprotective properties may help preserve joint cartilage in conditions like osteoarthritis.
Cytokines
Small signaling proteins released by cells that regulate inflammation, immunity, and cellular behavior. Key cytokines in regenerative medicine include interleukins (IL-10, IL-4) that modulate the healing response.
E
Exosomes
Nanoscale extracellular vesicles (30-150 nanometers) secreted by cells. They carry proteins, lipids, and genetic material that enable cell-to-cell communication and are used therapeutically to deliver regenerative signals to target tissues.
Extracellular Matrix (ECM)
The structural network of proteins and molecules that surrounds and supports cells in tissues. ECM components like collagen and hyaluronic acid play important roles in tissue repair and regeneration.
Extracellular Vesicles (EVs)
Membrane-bound particles released by cells, including exosomes, microvesicles, and apoptotic bodies. EVs play crucial roles in intercellular communication and are being studied for therapeutic applications.
F
FDA Registration
The process by which tissue establishments register with the FDA and list their HCT/P products. Registration is required under 21 CFR Part 1271 and indicates regulatory compliance.
G
Growth Factors
Proteins that stimulate cell growth, proliferation, and differentiation. Key growth factors in regenerative medicine include VEGF, PDGF, TGF-β, IGF-1, and EGF, which promote tissue healing and regeneration.
C
Immunomodulation
The process of modifying the immune response. MSC-derived exosomes exhibit immunomodulatory properties, helping to reduce excessive inflammation and promote a healing environment.
L
Lyophilization
A freeze-drying process that removes water from a product after freezing it. Lyophilized exosome products are stable at room temperature and have extended shelf life compared to fresh or frozen products.
H
HCT/P
Human Cells, Tissues, and Cellular and Tissue-based Products. FDA regulatory category for products containing or derived from human tissues, governed by 21 CFR Part 1271.
Homologous Use
Using an HCT/P for repair, reconstruction, replacement, or supplementation of tissues that perform the same basic function in the recipient as in the donor. A key regulatory criterion under FDA's 361 HCT/P framework.
M
Mesenchymal Stem Cells (MSCs)
Multipotent cells that can differentiate into various cell types including bone, cartilage, and fat cells. MSCs are a primary source for therapeutic exosomes due to their regenerative and immunomodulatory properties.
MicroRNA (miRNA)
Small non-coding RNA molecules that regulate gene expression. Exosomes carry specific miRNAs that can influence cellular behavior in target tissues, contributing to their therapeutic effects.
O
Osteoarthritis (OA)
A degenerative joint disease characterized by breakdown of cartilage, bone changes, and inflammation. OA is one of the primary conditions targeted by regenerative orthopedic treatments including exosome therapy.
P
Paracrine Signaling
A form of cell signaling where a cell produces a signal that affects nearby cells. MSCs primarily exert their regenerative effects through paracrine signaling via exosomes rather than direct differentiation.
Placental Tissue
Tissue from the placenta including amniotic membrane, chorion, umbilical cord, and Wharton's jelly. These tissues are rich sources of regenerative cells and growth factors used in regenerative medicine products.
Platelet-Rich Plasma (PRP)
An autologous blood product containing concentrated platelets and growth factors. PRP is a common regenerative treatment that differs from exosome therapy in that it uses the patient's own blood rather than allogeneic tissue products.
R
Reconstitution
The process of adding liquid (typically sterile saline) to a lyophilized product to restore it to a usable form. Proper reconstitution technique is important for maintaining product quality.
Regenerative Medicine
A branch of medicine focused on repairing, replacing, or regenerating human cells, tissues, or organs to restore normal function. It encompasses cell therapies, tissue engineering, and biological products like exosomes.
T
Tissue Bank
A facility that recovers, processes, stores, and distributes human tissues for transplantation and other therapeutic uses. Tissue banks must be registered with the FDA and may seek AATB accreditation.
W
Wharton's Jelly
The gelatinous connective tissue within the umbilical cord. It's a rich source of MSCs and is used in the production of various regenerative medicine products.
