Scl gene construction, expression and effect on hemangioma

文献类型： 外文期刊

第一作者： Yin, H. X.

作者： Yin, H. X.;Zhang, Z. H.;Shen, J. C.;Zhang, A. L.;Yi, X. P.;Liu, Z. W.;Yang, S. S.;Fu, X.;Zhang, T. Y.;Luo, J. X.;Zhang, T. Y.;Luo, J. X.;Fu, C. Y.;Zhou, B.

作者机构：

关键词： Hemangioma;Angiogenesis inhibitor;Scl;Treatment;Pichia pastoris

期刊名称：MOLECULAR BIOLOGY REPORTS （ 影响因子：2.316； 五年影响因子：2.357 ）

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收录情况： SCI

摘要： Hemangioma is a tumor that causes vascular endothelial cell hyperplasia, which commonly occur in newborns. Angiogenesis inhibitor targets the processes of angiogenesis, including the proliferation of vascular endothelial cells. A DNA sequence named Scl was designed, recombined into Pichia Pastoris, expressed by fermenting the engineered strain in a bioreactor, and purified the recombinant Scl by SP-sepharose fast flow. Scl can inhibit CAM angiogenesis. Only 1 μg of Scl significantly suppressed the growth of CAM blood vessel, similar to that of 25 μg of angiostatin. Scl showed a strong cytotoxicity on hemangioma cell (ATCC CRL No. 2587). After the drug acted for 24 h, the OD 570 measured value of the PBS control group averaged 1.873, whereas that of the Sc1 drug group was 0.692 (P < 0.01). Using the DeadEndTM Fluorometric TUNEL System, the detection results showed that 92 % of hemangioma cell apoptosis was observed in the Scl protein group, but only 1.3 % in the PBS control group (P < 0.01). After2 weeks of treatment with the hemangioma model (cock’s wattle) of the PBS group, 151 blood vessels with 100 views (40×) were obtained, whereas 250 in the PBS group (P < 0.01). During the two-week medication, the hemangioma model of the PBS group increased by 1.18 cm, whereas only 0.58 cm in the Scl drug group (P < 0.01).

分类号： Q7

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