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Correlation of vascular endothelial growth factor and CD105-microvascular density in primary pterygium

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Summary

The relationship between the expression of vascular endothelial growth factor (VEGF) and microvascular density (MVD) marked by CD105 (CD105-MVD), and that between CD105-MVD and the clinicopathological characteristics of primary pterygium were investigated. The streptavidin-biotin complex (SABC) immunohistochemical staining in paraffin-embedded tissues was used to detect the expression of VEGF in 23 cases of primary pterygia and 7 normal conjunctival specimens. The antibody against CD105 was used to display vascular endothelial cells, and MVD was examined by counting the CD105-positive vascular endothelial cells. The correlations of VEGF and CD105-MVD, and those of CD105-MVD and clinicopathological data were analyzed by using SPSS 12.0. The expression of VEGF was significantly increased in epithelia (P=0.000), endothelia and stroma cells (P=0.005) in primary pterygia as compared with normal conjunctivae. The CD105-MVD in pterygia (mean 19.22±6.68) was higher than that in normal conjunctivae (mean 4.00±2.15, P=0.000). MVD in pterygia was significantly associated with the Tan classification (P=0.000) and the VEGF expression level in the stroma (P=0.020), but not with sex (P=0.61), age (P=0.150) or the VEGF expression level in the epithelia (P=0.518). Our results suggest that over-expression of VEGF and high CD105-MVD in primary pterygium may contribute to the progression by increasing angiogenesis and growth of primary pterygium.

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Correspondence to Mingchang Zhang  (张明昌).

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Zhang, J., Zhang, M., Li, X. et al. Correlation of vascular endothelial growth factor and CD105-microvascular density in primary pterygium. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 31, 560–564 (2011). https://doi.org/10.1007/s11596-011-0490-4

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  • DOI: https://doi.org/10.1007/s11596-011-0490-4

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