title: Polydeoxyribonucleotides (PDRNs) From Skin to Musculoskeletal Tissue Regeneration via Adenosine A2AReceptor Involvement.
abstract: Polydeoxyribonucleotides (PDRNs) are low molecular weight DNA molecules of natural origin that stimulate cell migration and growth, extracellular matrix (ECM) protein production, and reduce inflammation. Most preclinical and clinical studies on tissue regeneration with PDRNs focused on skin, and only few are about musculoskeletal tissues. Starting from an overview on skin regeneration studies, through the analysis of in vitro, in vivo, and clinical studies (1990-2016), the present review aimed at defining the effects of PDRN and their mechanisms of action in the regeneration of musculoskeletal tissues. This would also help future researches in this area. A total of 29 studies were found by PubMed and www.webofknowledge.com searches: 20 were on skin (six in vitro, six in vivo, one vitro/vivo, seven clinical studies), while the other nine regarded bone (one in vitro, two in vivo, one clinical studies), cartilage (one in vitro, one vitro/vivo, two clinical studies), or tendon (one clinical study) tissues regeneration. PDRNs improved cell growth, tissue repair, ECM proteins, physical activity, and reduced pain and inflammation, through the activation of adenosine A2Areceptor. PDRNs are currently used for bone, cartilage, and tendon diseases, with a great variability regarding the PDRN dosage to be used in clinical practice, while the dosage for skin regeneration is well established. PDRNs are usually administered from a minimum of three to a maximum of five times and they act trough the activation of A2Areceptor. Further studies are advisable to confirm the effectiveness of PDRNs and to standardize the PDRN dose. J. Cell. Physiol. 232: 2299-2307, 2017. © 2016 Wiley Periodicals, Inc.
authors: Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Via Di Barbiano, Bologna, Italy.
authors: Francesca
authors: F
authors: Veronesi
authors: Conservative Orthopedic Surgery and Innovative Techniques Ward, Rizzoli Orthopedic Institute, Bologna, Italy.
authors: Dante
authors: D
authors: Dallari
authors: Conservative Orthopedic Surgery and Innovative Techniques Ward, Rizzoli Orthopedic Institute, Bologna, Italy.
authors: Giacomo
authors: G
authors: Sabbioni
authors: Conservative Orthopedic Surgery and Innovative Techniques Ward, Rizzoli Orthopedic Institute, Bologna, Italy.
authors: Chiara
authors: C
authors: Carubbi
authors: Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Via Di Barbiano, Bologna, Italy.
authors: Lucia
authors: L
authors: Martini
authors: Laboratory of Preclinical and Surgical Studies, Rizzoli Orthopedic Institute, Via Di Barbiano, Bologna, Italy.
authors: Milena
authors: M
authors: Fini
mesh_terms: D000818:Animals; D016723:Bone Remodeling; D002465:Cell Movement; D049109:Cell Proliferation; D005109:Extracellular Matrix / Q000378:metabolism; D006801:Humans; D009141:Musculoskeletal System / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology; D011089:Polydeoxyribonucleotides / Q000378:metabolism*; D043683:Receptors, Adenosine A2 / Q000378:metabolism*; D012038:Regeneration; D015398:Signal Transduction; D012867:Skin / Q000378:metabolism* / Q000473:pathology / Q000503:physiopathology; D014945:Wound Healing
chemical_list: D011089:Polydeoxyribonucleotides; D043683:Receptors, Adenosine A2