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TitelTherapeutic potential of placental growth factor (PlGF) inhibition in scar formation after glaucoma filtration surgery
DoelWe checked the hypothesis that placental growth factor (PlGF) may be a target for improvement of the outcome of glaucoma filtration surgery (GFS).
MethodesThe effect of the anti-murine PlGF-antibody (5D11D4) was investigated in a mouse model of GFS. Immediately after surgery 5D11D4 (5.2µg) or 1C8, an irrelevant mouse IgG antibody (4.8 µl), was injected in the anterior chamber (n=10 eyes for both groups). An anti-murine VEGF-R2 antibody (DC101) was used as a positive control (6.2 µg; n=10). Mice were killed on post-operative day 8. Treatment outcome was studied by clinical investigation of the bleb and by immunohistological stainings. All antibodies were kindly provided by ThromboGenics NV.
ResultatenTreatment using the anti-PlGF antibody significantly improved surgical outcome by increasing bleb survival and bleb area with 29% compared to negative control (1C8). Postoperative inflammation and angiogenesis was reduced during the first days after surgery and collagen deposition was decreased at later stages. A single administration of anti-VEGF-R2 also significantly improved bleb area with 7% as compared to 1C8, but had no effect on bleb survival. Inhibition of VEGF-R2 only reduced angiogenesis and collagen deposition, but did not influence inflammation.
ConclusieTargeting PlGF with an inhibitory monoclonal antibody is efficacious in improving GFS outcome, possibly even more effectively than inhibition of VEGF-R2, due to its additional effect on inflammation. These results render PlGF an appealing target for ocular wound healing and point to the potential therapeutic benefits of PlGF-inhibition.
Auteur 1
NaamVAN BERGEN
InitialenT
InstituutKUL
StadLeuven
Auteur 2
NaamJonckx
InitialenB
InstituutThromboGenics
StadHeverlee
Auteur 3
NaamHollanders
InitialenK
InstituutKUL
StadLeuven
Auteur 4
NaamSijnave
InitialenD
InstituutKUL
StadLeuven
Auteur 5
NaamVan de Velde
InitialenS
InstituutKUL
StadLeuven
Auteur 6
NaamVandewalle
InitialenE
InstituutKUL
StadLeuven
Auteur 7
NaamMoons
InitialenL
InstituutKUL
StadLeuven
Auteur 8
NaamStassen
InitialenJM
InstituutThromboGenics
StadHeverlee
Auteur 9
NaamStalmans
InitialenI
InstituutKUL
StadLeuven
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