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Form-deprivation myopia induces decreased expression of bone morphogenetic protein-2, 5 in guinea pig sclera

International Journal of Ophthalmology(English edition) 2015年第1期8卷 39-45页

作者： Qing Wang Mei-Lan Xue Gui-Qiu Zhao Mei-Guang Liu Yu-Na Ma Yan Ma Department of Ophthalmology the Affiliated Hospital of Qingdao University Department of Biochemistry and Molecular Biology Medical College Qingdao University

AIM: To identify the presence of various bone morphogenetic proteins(BMPs) and their receptors in normal sclera of human, rat and guinea pigs, and to determine whether their expression changed with form-deprivation myopia(FDM) in guinea pig ***: The expression of BMPs and BMP receptors were detected using reverse transcription polymerase chain reaction(RT-PCR) and immunofluorescence. Two-week-old guinea pigs were monocularly form-deprived with a translucent lens. After fourteen days induction of FDM, total RNA was isolated and subjected to RT-PCR to examine the changes of BMPs and BMP receptors in tissues from the posterior sclera. Western blotting analysis was used to investigate their changes in protein ***: Human sclera expressed m RNAs for BMP-2,-4,-5,-7,-RIA,-RIB and BMP-RII. Conversely, rat sclera only expressed m RNA for BMP-7 and BMP-RIB,while the expression of BMPs and BMP receptors in guinea pigs were similar to that of humans. Human sclera also expresses BMP-2,-4,-5,-7 in protein *** days after the induction of myopia, significant decreased expressions for BMP-2 and BMP-5 in the posterior sclera of FDM-affected eyes(P <0.05 vs internal control eyes).· CONCLUSION: Various BMPs were expressed in human and guinea pig sclera. In the posterior sclera,expressions of BMP-2 and BMP-5 significantly decreased in FDM eyes. This finding indicates that various BMPs as components of the scleral cytokines regulating tissue homeostasis and provide evidence that alterations in the expression of BMP-2 and BMP-5 are associated with sclera remodeling during myopia induction.

关键词： form-deprivationmyopia bonemorphogenetic protein human sclera guinea pig sclera

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