Abstract
Objective Mitotic spindle and midbody are both microtubule-based temporary structures during cell growth and play essential roles in mitosis.The purpose of this study was to establish a mature and efficient method to extract mitotic spindle and midbody.Methods Through the cell cycle synchronization method,mitotic spindle or midbody was made appear inside cells.Low permeability swelling and glycerol gradient centrifugation principles were then used to extract spindle and midbody.Results By Western Blot and immunofluorescence staining,the extracts were identified as mitotic spindle and midbody.Conclusions The successful extraction of mitotic spindle and midbody from synchronized Hela cells will provide foundation for identifying the proteins located in cell during mitosis,and be of great significance to the study of molecular regulation mechanisms of mitosis and tumorigenesis. Key words: Mitotic spindle; Midbody; Cell cycle synchronization; Mitosis
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