title: Time-dependent matrix metalloproteinases and tissue inhibitor of metalloproteinases expression change in fusarium solani keratitis.
abstract: OBJECTIVE
  To investigate matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinases (TIMPs) expression during the progress of fusarium solani (F.solani) keratitis in a rat model.
  
  
  METHODS
  A rat model of F.solani keratitis was produced using corneal scarification and a hand-made contact lens. MMPs and TIMPs expressiond were explored in this rat model of F.solani keratitis using real-time polymerase chain reaction (PCR) and DIF. GM6001 (400 µmol/mL) was used to treat infected corneas. The keratitis duration, amount and area of corneal neovascularization (CNV) were evaluated.
  
  
  RESULTS
  MMP-3 expression was 66.3 times higher in infected corneas compared to normal corneas. MMP-8, -9, and -13 expressions were significantly upregulated in the mid-period of the infection, with infected-to-normal ratios of 4.03, 39.86, and 5.94, respectively. MMP-2 and -7 expressions increased in the late period, with the infected-to-normal ratios of 5.94 and 16.22, respectively. TIMP-1 expression was upregulated in the early period, and it was 43.17 times higher in infected compared to normal corneas, but TIMP-2, -3, and -4 expressions were mildly downregulated or unchanged. The results of DIF were consistent with the result of real-time PCR. GM6001, a MMPs inhibitor, decreased the duration of F.solani infection and the amount and area of CNV.
  
  
  CONCLUSIONS
  MMPs and TIMPs contributed into the progress of F.solani keratitis.
authors.affiliation: Department of Ophthalmology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Li
authors.affiliation: Department of Ophthalmology, Shanghai Tenth People's Hospital, Tenth People's Hospital of Tongji University, Shanghai 200072, China.
authors.forename: Xin-Rui
authors.initials: XR
authors.lastname: Gao
authors.affiliation: Department of Ophthalmology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China.
authors.forename: Hong-Ping
authors.initials: HP
authors.lastname: Cui
authors.affiliation: Department of Ophthalmology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China.
authors.forename: Li-Li
authors.initials: LL
authors.lastname: Lang
authors.affiliation: Department of Ophthalmology, Changzhou Third People's Hospital, Changzhou 213001, Jiangsu Province, China.
authors.forename: Xiu-Wen
authors.initials: XW
authors.lastname: Xie
authors.affiliation: Department of Ophthalmology, Shanghai Pudong New Area Gongli Hospital, Shanghai 200135, China.
authors.forename: Qun
authors.initials: Q
authors.lastname: Chen
keywords: fungal keratitis; fusarium solani; metalloproteinases; tissue inhibitors of metalloproteinases