文献类型: 外文期刊
第一作者: Li, Lin-Feng
作者: Li, Lin-Feng;Bai, Chun-Yu;Gong, Xue-Lian;Guan, Wei-Jun;Ma, Yue-Hui;Li, Lin-Feng
作者机构:
关键词: DUCK;PRIMORDIAL GERM CELL;EMBRYONIC GERM CELL;NEURAL DIFFERENTIATION
期刊名称:JOURNAL OF CELLULAR BIOCHEMISTRY ( 影响因子:4.429; 五年影响因子:4.266 )
ISSN: 0730-2312
年卷期: 2011 年 112 卷 6 期
页码:
收录情况: SCI
摘要: Although the avian primordial germ cells (PGCs) have been used to produce transgenic birds, their characteristics largely remain unknown. The isolation, culture, biological characterization, and directed neural differentiation of duck EG cells were assayed in this study. The Results showed that the EG cells were got by isolating embryonic gonad and surrounding tissue from 7-day-old duck embryo. The PGCs co-cultured with their gonadal somatic cells were well grown. After passaging, the EG cells were incubated in medium with cytokines and Mitomycin C on inactivated duck embryonic fibroblasts (DEFs) feeder layers. After several passages, alkaline phosphatase (ALP) and periodic acid-Schiff (PAS) resulted positive, cellular markers detection positive for SSEA-1, SSEA-4, TRA-1-60, and TRA-1-81. Karyotype analysis showed the EG cells kept diploid condition and the hereditary feature was stable in accordance with varietal characteristics of duck. These cells grew continuously for 11 passages on DEFs. Under induction of medium with BME, RA, and IBMX, the EG cells lost undifferentiated state, large amount of neural cells appeared with the formation of neural cells networks. Special Nissl body was found by toluidine blue stain after induced for 7 days. Immunofluorescence staining results indicated that differentiated EG cells expressed Nestin, NSE, and GFAP positive. The expression of Nestin, NSE, and GFAP mRNA were positive by RT-PCR. The results revealed that RA can obviously promote the directed differentiation of duck EG cells into neural lineage. The duck EG cells will be useful for the production of transgenic birds, for cell replacement therapy and for studies of germ cell differentiation. J. Cell. Biochem. 112: 1514-1523, 2011. (C) 2011 Wiley-Liss, Inc.
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