Spontaneous inactivating p53 mutations and the 'selfish cell'
2011

How to Become Immortal: Let MEFs Count the Ways

Commentary

Author Information

Author(s): Sorscher Steven M., Hill Aubrey E., Belizaire Roger, Sorscher Eric J.

Hypothesis

Cells seek to survive in a Darwinian sense, leading to tumorigenesis through spontaneous p53 mutations.

Conclusion

Spontaneous mutations in p53 that allow cell survival may contribute to tumorigenesis, supporting the 'Selfish Cell Theory'.

Supporting Evidence

  • Murine embryo fibroblasts undergo p53 mutations and immortalizations in culture.
  • Spontaneous mutations in p53 are frequently seen in human cancers.
  • The 'Selfish Cell Theory' suggests that cells evolve to survive, even at the cost of tumorigenesis.

Takeaway

Some cells can change in a way that helps them live longer, which can also lead to cancer.

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