Chromosome condensation outside of mitosis: Mechanisms and new tools

A basic principle of cell physiology is that chromosomes condense during mitosis. However, condensation can be uncoupled from mitotic events under certain circumstances. This phenomenon is known as “premature chromosome condensation (PCC).” PCC provides insights in the mechanisms of chromosome condensation, thus helping clarifying the key molecular events leading to the mitosis. Besides, PCC has proved to be an useful tool for analyzing chromosomes in interphase. For example, using PCC we can visualize genetic damage shortly after the exposure to clastogenic agents. More than 30 years ago, the first report of PCC in interphase cells fused to mitotic cells using Sendai virus was described (virus‐mediated PCC). The method paved the way to a great number of fundamental discoveries in cytogenetics, radiation biology, and related fields, but it has been hampered by technical difficulties. The novel drug‐induced PCC method was introduced about 10 years ago. While fusion‐induced PCC exploits the action of external maturation/mitosis promoting factor (MPF), migrating from the inducer mitotic cell to the interphase recipient, drug‐induced PCC exploits protein phosphatase inhibitors, which can activate endogenous intracellular MPF. This method is much simpler than fusion‐induced PCC, and has already proven useful in different fields. J. Cell. Physiol. 209: 297–304, 2006. © 2006 Wiley‐Liss, Inc.

• Publication year

  2006

• Venue

  Journal of Cellular Physiology

• Publication date

  2006-11-01

• Fields of study

  Biology, Medicine

• Identifiers
  DOI 10.1002/jcp.20720PMID 16810672
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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