PMID- 15336503 OWN - NLM STAT- MEDLINE DCOM- 20041012 LR - 20061115 IS - 0014-4835 (Print) IS - 0014-4835 (Linking) VI - 79 IP - 3 DP - 2004 Sep TI - Effects of matrix metalloproteinase-3 gene transfer by electroporation in glaucoma filter surgery. PG - 405-10 AB - To develop gene therapy that can be applied to glaucoma-filtering surgery, we studied effects of transfection of matrix metalloproteinase-3 (MMP-3) cDNA into rabbit conjunctiva by electroporation (EP) on changes of intraocular pressure (IOP) and bleb formation after glaucoma filtering surgery. pTracer-CMV2 vector containing MMP-3 cDNA was transfected into rabbit conjunctiva by EP and MMP-3 expression was studied by reverse transcription (RT)-PCR, zymography and western blot analysis. Three days after the EP transfection of MMP-3 cDNA or vector alone into rabbit conjunctiva, trabeculectomy was performed at the place of transfection in the presence or absence of 0.04% mitomycin C (MMC). Then changes in IOPs and bleb formation were compared with each other. Expression of MMP-3 was detected in conjunctiva until 30 days after transfection by EP. Trabeculectomy following MMP-3 transfection caused significantly longer survival of filtering bleb and decreased levels of IOP in comparison with controls (trabeculectomy alone or trabeculectomy following vector transfection), and these levels were almost identical to those of trabeculectomy with MMC. The present study indicates that EP is effective to transfect some genes that promote the filtering bleb formation in glaucoma surgery, such as MMP-3 gene, and this may be potentially applicable to glaucoma-filtering surgery in glaucoma patients. FAU - Mamiya, Kazuhisa AU - Mamiya K AD - Department of Ophthalmology, Hirosaki University School of Medicine, 5 Zaifucho, 036-8562, Japan. ooguro@cc.hirosaki-u.ac.jp FAU - Ohguro, Hiroshi AU - Ohguro H FAU - Ohguro, Ikuyo AU - Ohguro I FAU - Metoki, Tomomi AU - Metoki T FAU - Ishikawa, Fotoshi AU - Ishikawa F FAU - Yamazaki, Hitoshi AU - Yamazaki H FAU - Takano, Yoshiko AU - Takano Y FAU - Ito, Tadashi AU - Ito T FAU - Nakazawa, Mitsuru AU - Nakazawa M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Exp Eye Res JT - Experimental eye research JID - 0370707 RN - 0 (DNA, Circular) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM MH - Animals MH - Blotting, Western/methods MH - Conjunctiva/physiology MH - DNA, Circular/genetics MH - Electrophoresis, Polyacrylamide Gel/methods MH - Electroporation/methods MH - Genetic Vectors/genetics MH - Glaucoma/*surgery MH - Humans MH - Intraocular Pressure/*genetics MH - Matrix Metalloproteinase 3/*genetics MH - Rabbits MH - Trabeculectomy/methods MH - Transfection/*methods EDAT- 2004/09/01 05:00 MHDA- 2004/10/13 09:00 CRDT- 2004/09/01 05:00 PHST- 2004/02/01 00:00 [received] PHST- 2004/06/15 00:00 [accepted] PHST- 2004/09/01 05:00 [pubmed] PHST- 2004/10/13 09:00 [medline] PHST- 2004/09/01 05:00 [entrez] AID - S0014-4835(04)00170-8 [pii] AID - 10.1016/j.exer.2004.06.017 [doi] PST - ppublish SO - Exp Eye Res. 2004 Sep;79(3):405-10. doi: 10.1016/j.exer.2004.06.017.