IMMUNOCYTOCHEMICAL LOCALIZATION OF CYCLIN PROLIFERATING CELL NUCLEAR ANTIGEN (PCNA) IN FERTILIZED-EGGS OF MICE

被引:2
作者
BARAN, V
VESELA, J
REHAK, P
KOPPEL, J
机构
[1] Slovak Academy of Sciences, Institute of Animal Physiology, Kosice
来源
REPRODUCTION NUTRITION DEVELOPMENT | 1992年 / 32卷 / 03期
关键词
CYCLIN; PCNA; DNA SYNTHESIS; IMMUNOCYTOCHEMISTRY; FERTILIZED MOUSE EGG;
D O I
10.1051/rnd:19920303
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
Immunolocalization of cyclin/PCNA (proliferating cell nuclear antigen) was performed with monoclonal antibody using immunogold methods on ultrathin cryosections of fertilized mouse eggs. Immunolabeling in pronuclei was checked 20, 22, 24 and 26 h after HCG injection. A relation between onset of pronuclei migration (early S-phase) and appearance of colloidal particle clusters was found. Afterwards, (mid S-phase) the increase of labelling and the localization of cyclin/PCNA were found throughout the pronuclei, except in the nucleolar bodies. Lower labelling appeared at the time of close reciprocal pronuclei contact (late S-phase). It is concluded that bulk and distribution of cyclin/PCNA in pronuclei is closely related to the progression of first interphase after fertilization.
引用
收藏
页码:241 / 248
页数:8
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