C. Kee et al., Stromelysin gene transfer into cultured human trabecular cells and rat trabecular meshwork in vivo, INV OPHTH V, 42(12), 2001, pp. 2856-2860
PURPOSE. To determine whether stromelysin gene can be introduced into and e
xpressed in the cultured human trabecular cells as well as in the rat eye i
n vivo through means of a recombinant replication-deficient adenovirus.
METHODS. Stromelysin cDNA was obtained by reverse transcription-polymerase
chain reaction with mRNA extracted from the cultured human trabecular cells
after induction with interleukin 1 alpha. Adenovirus vector that contains
stromelysin cDNA was constructed by cotransfection of pJM17 and p DeltaA. C
MV-str into the 293 cells. The expression of stromelysin in the cultured hu
man trabecular cells was assayed by Western blot and zymography. The expres
sion of stromelysin in the trabecular meshwork of the rat eyes was detected
by in situ hybridization and immunohistochemistry.
RESULTS. The constructed adenovirus vector contained Stromelysin cDNA, but
no E1 region. Western blot and zymogram revealed that the stromelysin could
be expressed and that it possessed enzymatic activity in cultured human tr
abecular cells. In situ hybridization and immunostaining of the Stromelysin
showed that the complete form of stromelysin was expressed in the trabecul
ar meshwork, the iris, and the uveoscleral outflow pathway of the rat eye.
CONCLUSIONS. Stromelysin, a functional gene, can be transferred in vivo int
o rat eyes and in vitro into cultured human trabecular cells using a replic
ation-deficient adenovirus vector. This shows the possibility of gene thera
py in glaucoma.