A three-dimensional culture system using alginate hydrogel prolongs hatched cattle embryo development in vitro
文献类型: 外文期刊
第一作者: Zhao, Shuan
作者: Zhao, Shuan;Liu, Zhen-Xing;Gao, Hui;Wu, Yi;Fang, Yuan;Wu, Shuai-Shuai;Li, Ming-Jie;Zeng, Shen-Ming;Zhao, Shuan;Liu, Zhen-Xing;Gao, Hui;Wu, Yi;Fang, Yuan;Wu, Shuai-Shuai;Li, Ming-Jie;Zeng, Shen-Ming;Zhao, Shuan;Liu, Zhen-Xing;Gao, Hui;Wu, Yi;Fang, Yuan;Wu, Shuai-Shuai;Li, Ming-Jie;Zeng, Shen-Ming;Bai, Jia-Hua;Liu, Yan;Evans, Alexander
作者机构:
关键词: Alginate;Three-dimensional culture;Embryo Development;Bovine
期刊名称:THERIOGENOLOGY ( 影响因子:2.74; 五年影响因子:2.93 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: No successful method exists to maintain the three-dimensional architecture of hatched embryos in vitro. Alginate, a linear polysaccharide derived from brown algae, has characteristics that make it an ideal material as a three-dimensional (3D) extracellular matrix for in vitro cell, tissue, or embryo culture. In this study, alginate hydrogel was used for IVC of posthatched bovine embryos to observe their development under the 3D system. In vitro-fertilized and parthenogenetically activated posthatched bovine blastocysts were cultured in an alginate encapsulation culture system (AECS), an alginate overlay culture system (AOCS), or control culture system. After 18 days of culture, the survival rate of embryos cultured in AECS was higher than that in the control group (P < 0.05), and the embryos were expanded and elongated in AECS with the maximal length of 1.125 mm. When the AECS shrinking embryos were taken out of the alginate beads on Day 18 and cultured in the normal culture system, 9.09% of them attached to the bottoms of the plastic wells and grew rapidly, with the largest area of an attached embryo being 66.00 mm(2) on Day 32. The embryos cultured in AOCS developed monovesicular or multivesicular morphologies. Total cell number of the embryos cultured in AECS on Day 19 was significantly higher than that of embryos on Day 8. Additionally, AECS and AOCS supported differentiation of the embryonic cells. Binuclear cells were visible in Day-26 adherent embryos, and the messenger RNA expression patterns of Cdx2 and Oct4 in AOCS-cultured embryos were similar to those in vivo embryos, whereas IFNT and ISG15 messenger RNA were still expressed in Day-26 and Day-32 prolong-cultured embryos. In conclusion, AECS and AOCS did support cell proliferation, elongation, and differentiation of hatched bovine embryos during prolonged IVC. The culture system will be useful to further investigate the molecular mechanisms controlling ruminant embryo elongation and implantation. (C) 2015 Elsevier Inc. All rights reserved.
分类号: Q95
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