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Published on: June 29, 2011

Mechanisms of apoptosis by c-Myc

G C Prendergast1

  • 1The Wistar Institute, Philadelphia, Pennsylvania 19104, USA.

Oncogene
|June 23, 1999
PubMed

Insights

The transcription factor c-Myc, known for regulating cell proliferation, also intrinsically drives apoptosis. Research reveals c-Myc

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Biology

Background:

  • c-Myc is a key regulator of cell proliferation in both normal and neoplastic cells.
  • Recent research highlights c-Myc's intrinsic role in inducing apoptosis, a property with therapeutic potential in malignancy.
  • c-Myc deregulation is common in advanced cancers, necessitating novel therapeutic strategies.

Purpose of the Study:

  • To review the evidence for c-Myc's role in apoptosis across various cellular contexts.
  • To present a modified dual signal model for c-Myc-mediated apoptosis.
  • To explore potential therapeutic opportunities by investigating c-Myc's cell death mechanisms.

Main Methods:

  • Literature review of studies investigating c-Myc and apoptosis.
  • Analysis of c-Myc's known and candidate target genes involved in cell death.
  • Examination of emerging data on c-Myc interactions with apoptosis-related pathways and proteins.

Main Results:

  • c-Myc actively induces apoptosis through intrinsic mechanisms.
  • Connections between c-Myc, CD95/Fas and TNF pathways, p19ARF, and Bin1 in cell death are identified.
  • A modified dual signal model proposes c-Myc coordinates 'death priming' and 'death triggering' with mitogenic signals.

Conclusions:

  • c-Myc plays a significant role in inducing apoptosis, distinct from its proliferative functions.
  • Understanding the mechanisms of c-Myc-induced cell death, particularly the 'death triggering' steps, could yield new cancer therapies.
  • Further investigation into c-Myc's apoptotic pathways is crucial for developing targeted anti-cancer treatments.

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