TY - JOUR
T1 - Angiogenesis is not impaired in connective tissue growth factor (CTGF) knock-out mice
AU - Kuiper, Esther J.
AU - Roestenberg, Peggy
AU - Ehlken, Christoph
AU - Lambert, Vincent
AU - van Treslong-de Groot, Henny Bloys
AU - Lyons, Karen M.
AU - Agostini, Hans-Jürgen T.
AU - Rakic, Jean-Marie
AU - Klaassen, Ingeborg
AU - van Noorden, Cornelis J. F.
AU - Goldschmeding, Roel
AU - Schlingemann, Reinier O.
PY - 2007
Y1 - 2007
N2 - Connective tissue growth factor (CTGF) is a member of the CCN family of growth factors. CTGF is important in scarring, wound healing, and fibrosis. It has also been implicated to play a role in angiogenesis, in addition to vascular endothelial growth factor (VEGF). In the eye, angiogenesis and subsequent fibrosis are the main causes of blindness in conditions such as diabetic retinopathy. We have applied three different models of angiogenesis to homozygous CTGF(-/-) and heterozygous CTGF(+/-) mice to establish involvement of CTGF in neovascularization. CTGF(+/-) mice die around birth. Therefore, embryonic CTGF(-/-), CTGF(-/-), and CTGF(+/+) bone explants were used to study in vitro angiogenesis, and neonatal and mature CTGF(+/-) and CTGF(+/+) mice were used in models of oxygen-induced retinopathy and laser-induced choroidal neovascularization. Angiogenesis in vitro was independent of the CTGF genotype in both the presence and the absence of VEGF. Oxygen-induced vascular pathology in the retina, as determined semi-quantitatively, and laser-induced choroidal neovascularization, as determined quantitatively, were also not affected by the CTGF genotype. Our data show that downregulation of CTGF levels does not affect neovascularization, indicating distinct roles of VEGF and CTGF in angiogenesis and fibrosis in eye conditions
AB - Connective tissue growth factor (CTGF) is a member of the CCN family of growth factors. CTGF is important in scarring, wound healing, and fibrosis. It has also been implicated to play a role in angiogenesis, in addition to vascular endothelial growth factor (VEGF). In the eye, angiogenesis and subsequent fibrosis are the main causes of blindness in conditions such as diabetic retinopathy. We have applied three different models of angiogenesis to homozygous CTGF(-/-) and heterozygous CTGF(+/-) mice to establish involvement of CTGF in neovascularization. CTGF(+/-) mice die around birth. Therefore, embryonic CTGF(-/-), CTGF(-/-), and CTGF(+/+) bone explants were used to study in vitro angiogenesis, and neonatal and mature CTGF(+/-) and CTGF(+/+) mice were used in models of oxygen-induced retinopathy and laser-induced choroidal neovascularization. Angiogenesis in vitro was independent of the CTGF genotype in both the presence and the absence of VEGF. Oxygen-induced vascular pathology in the retina, as determined semi-quantitatively, and laser-induced choroidal neovascularization, as determined quantitatively, were also not affected by the CTGF genotype. Our data show that downregulation of CTGF levels does not affect neovascularization, indicating distinct roles of VEGF and CTGF in angiogenesis and fibrosis in eye conditions
U2 - https://doi.org/10.1369/jhc.7A7258.2007
DO - https://doi.org/10.1369/jhc.7A7258.2007
M3 - Article
C2 - 17625227
SN - 0022-1554
VL - 55
SP - 1139
EP - 1147
JO - Journal of Histochemistry and Cytochemistry
JF - Journal of Histochemistry and Cytochemistry
IS - 11
ER -