Characterization as well as quantitation of the active polynucleotide fraction (PDRN) from human placenta, a tissue repair stimulating agent

The polydeoxyribonucleotide (PDRN) fraction is an essence which creates the energetic element in a brand-new solution of the drug Placentex (a tissue repair service promoting agent), gotten from the human placenta through an original proprietary extraction method. From a contrast of the UV, NMR and IR ranges of this fraction (prior to and after nuclease therapy) with that of a comparable requirement (Sigma D1501), it was shown that the active substances in the PDRN fraction mainly consist of a combination of DNA pieces.

Broad antiinflammatory impacts adhering to adenosine A2A receptor excitement have been demonstrated in acute inflammatory diseases, consisting of joint inflammation. Polydeoxyribonucleotide (PDRN) activates the adenosine A2A receptor. This research was carried out to investigate the results of PDRN in collagen‐induced arthritis (CIA) in computer mice.

Arthritis was induced in DBA/1 computer mice by intradermal injection of 100 μl of bovine type II collagen in Freund’s complete adjuvant. Mice were inoculated a second time 21 days later. Control pets received 100 μl of a saline service. Animals with CIA were randomized to get one of the following: lorry (1 ml/kg); PDRN (8 mg/kg intraperitoneally daily); 3,7 dimethyl‐propargylxanthine (DMPX), a particular adenosine A2A receptor villain (0.1 mg/kg intraperitoneally daily); or PDRN plus DMPX. The therapy was launched instantly after the 2nd immunization as well as remained to day 45.


Scientific evaluation of joint inflammation was executed throughout the research study. On day 45, the pets were eliminated and also the intensity of arthritis was assessed histologically. Cartilage expression and also flowing levels of high mobility group box chromosomal healthy protein 1, growth necrosis factor α (TNFα), interleukin‐6 (IL‐6), and also IL‐10 were explored. Inflammatory cytokine production was likewise reviewed in stimulated human chondrocytes treated with PDRN.

PDRN therapy considerably ameliorated professional indications of arthritis, enhanced histologic damage, decreased the cartilage expression and distributing degrees of HMGB‐1, TNFα, and IL‐6, and improved IL‐10 expression. The concomitant management of DMPX and PDRN ablated the PDRN‐induced safety effect in speculative joint inflammation. PDRN likewise lowered cytokine manufacturing from stimulated human chondrocytes.