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Organization and dynamics of actin and myosin during cytokinesis in mammalian epithelial cells
Cytokinesis separation of cell division biological process actin polymer structure myosin
2014/12/11
Cytokinesis, the process of physically separating cells for division, requires the precise orchestration of numerous physical, mechanical, chemical and biological processes. For these processes to fun...
以胞质分裂阻滞法研究女性年龄与体细胞中21号染色体分离异常的关系Detection the Relation Between Chromosome 21 Missegregationand Age in Cytokinesis-blocked Female Lymphocytesby in situ Hybridization
细胞松弛素B 21号染色体 染色体不分离 年龄效应
2008/1/30
摘要21三体是人类最常见的先天性疾病，约95%患儿的超数21号染色体来源于母亲，且随母龄增加患儿出生率也随之增加。本文首次运用胞质分裂阻滞法(CB法)对不同年龄女性体细胞进行荧光原位杂交，对其21号染色体的分离情况进行分析。结果表明，随年龄的增加，女性体细胞中21号染色体不分离也随之增加，但21号染色体丢失无年龄效应, 且21号染色体不分离频率远高于其丢失。该结果表明，女性体细胞中21号染色体不分...