PMID- 22853554 OWN - NLM STAT- MEDLINE DCOM- 20130625 LR - 20161125 IS - 1607-8438 (Electronic) IS - 0300-8207 (Linking) VI - 54 IP - 1 DP - 2013 TI - Effect of ulinastatin on the expression of iNOS, MMP-2, and MMP-3 in degenerated nucleus pulposus cells of rabbits. PG - 29-33 LID - 10.3109/03008207.2012.716882 [doi] AB - We examined the effects of ulinastatin on the expression of inducible nitric oxide synthase (iNOS), matrix metalloproteinase-2 (MMP-2), and matrix metalloproteinase-3 (MMP-3) in degenerated nucleus pulposus (NP) cells of rabbits induced by interleukin (IL)-1beta in vitro. An in vitro NP cell culture model was set up with enzyme digestion. NP cells from adult white rabbits were divided into six groups: the normal control group, the ulinastatin control group (320 U/mL ulinastatin), the induced group (10 ng/mL IL-1beta), and three inhibition groups (IL-1beta followed by 160, 320, or 640 U/mL ulinastatin). After a 2-day culture, the NP cells were collected for immunohistochemical staining for MMP-2 and MMP-3 and spectrophotometric analysis of the amount of iNOS. Immunohistochemical staining showed that the expression of MMP-2 and MMP-3 proteins in NP cells decreased in the inhibition groups compared with the induced group, which was in inverse proportion to the ulinastatin concentration. Spectrophotometric results showed that, compared with the induced group, the iNOS content in each inhibition group decreased, most significantly in the 320 U/mL group. Ulinastatin effectively inhibited the increased expression of MMP-2, MMP-3, and iNOS in degenerated NP cells induced by IL-1beta in vitro. It suggests that ulinastatin may potentially be useful for clinical therapy of intervertebral disc degeneration. FAU - Hua, Guo AU - Hua G AD - Department of Spine Surgery, Red Cross Hospital Affiliated of Xi'an Jiaotong University, Xi'an, PR China. FAU - Haiping, Zhang AU - Haiping Z FAU - Baorong, He AU - Baorong H FAU - Dingjun, Hao AU - Dingjun H LA - eng PT - Journal Article DEP - 20120904 PL - England TA - Connect Tissue Res JT - Connective tissue research JID - 0365263 RN - 0 (Glycoproteins) RN - 0 (Matrix Metalloproteinase Inhibitors) RN - 0 (Trypsin Inhibitors) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) RN - EC 3.4.24.24 (Matrix Metalloproteinase 2) RN - OR3S9IF86U (urinastatin) SB - IM MH - Animals MH - Cells, Cultured MH - Disease Models, Animal MH - Glycoproteins/*pharmacology MH - Immunohistochemistry MH - Intervertebral Disc Degeneration/*drug therapy/enzymology/pathology MH - Matrix Metalloproteinase 2/*metabolism MH - Matrix Metalloproteinase 3/*metabolism MH - Matrix Metalloproteinase Inhibitors/pharmacology MH - Nitric Oxide Synthase Type II/antagonists & inhibitors/*metabolism MH - Rabbits MH - Spectrophotometry MH - Trypsin Inhibitors/*pharmacology EDAT- 2012/08/03 06:00 MHDA- 2013/06/26 06:00 CRDT- 2012/08/03 06:00 PHST- 2012/08/03 06:00 [entrez] PHST- 2012/08/03 06:00 [pubmed] PHST- 2013/06/26 06:00 [medline] AID - 10.3109/03008207.2012.716882 [doi] PST - ppublish SO - Connect Tissue Res. 2013;54(1):29-33. doi: 10.3109/03008207.2012.716882. Epub 2012 Sep 4.