Inhibition of new vessel growth in mouse model of laser-induced choroidal neovascularization by adiponectin peptide II.

Inhibition of new vessel growth in mouse model of laser-induced choroidal neovascularization by adiponectin peptide II.
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DOI:
10.1016/j.cellbi.2009.04.013
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发表时间:
2009-07
影响因子:
3.9
通讯作者:
Bora, Puran S.
Bora, Puran S.
中科院分区:
生物学4区
文献类型:
--
作者:
Lyzogubov, Valeriy V.;Tytarenko, Ruslana G.;Thotakura, Sushma;Viswanathan, Tito;Bora, Nalini S.;Bora, Puran S.

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在脉络膜新生血管(CNV)和湿性老年性黄斑变性(AMD)小鼠模型上观察了脂联素(APN)多肽II对新生血管生长的影响。在实验的第1-7天或第5-14天分别给小鼠注射APN多肽II、对照多肽或PBS。用共聚焦显微镜、免疫组织化学和RT-PCR方法研究APN、AdipoR1、增殖细胞核抗原和血管内皮生长因子的定位。APN肽II使FITC-葡聚糖灌流血管的相对面积减少4倍,增殖细胞核抗原表达减少3倍,HUVEC和Mavec细胞增殖细胞核抗原染色的细胞数分别减少38%和46%。我们的结论是,APN肽II在体内和体外通过抑制内皮细胞的增殖来抑制第7天和第14天的CNV大小。APN多肽II可能具有抑制CNV或湿性AMD的治疗潜力。
We have investigated the effect of adiponectin (APN) peptide II on new vessel growth in mouse model of choroidal neovascularization (CNV) or wet type age-related macular degeneration (AMD). Mice were injected intraperitoneally with APN peptide II, control peptide, or PBS on day 1–7 or day 5–14. APN, AdipoR1, PCNA, and VEGF localization was investigated using confocal microscopy, immunohistochemistry, and RT-PCR. APN peptide II decreased the relative area of FITC-dextran perfused vessels by 4-fold, PCNA expression by 3-fold, and the number of PCNA stained HUVEC and MAVEC cells by 38 and 46%, respectively. We concluded that APN peptide II inhibits CNV size on days 7 and 14 by inhibiting the proliferation of endothelial cells in vivo and in vitro. APN peptide II may have therapeutic potential to inhibit CNV or wet AMD.
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