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Two- and Three-Dimensional Live Cell Imaging of DNA Damage Response Proteins
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Scorpins in the DNA Damage Response.

Dario Palmieri1, Anna Tessari2, Vincenzo Coppola3

  • 1Department of Cancer Biology and Genetics, College of Medicine, The Ohio State University and James Comprehensive Cancer Center, Columbus, OH 43210, USA. dario.palmieri@osumc.edu.

International Journal of Molecular Sciences
|June 20, 2018
PubMed
Summary

The DNA Damage Response (DDR) involves proteins like RANBP9 and RANBP10. These Scorpins may play key roles in cancer cell recovery or death after DNA damage, warranting further investigation.

Keywords:
CTLH complexDDRGID complexRANBP10RANBP9RANBPMScorpins

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Area of Science:

  • Cellular Biology
  • Molecular Oncology
  • Genetics

Background:

  • The DNA Damage Response (DDR) is crucial for cell survival and cancer treatment, involving complex signaling pathways.
  • Understanding molecular determinants of cell fate (recovery vs. death) post-DNA damage is critical for effective cancer therapies.
  • SPRY-containing RAN binding Proteins (Scorpins), specifically RANBP9 and RANBP10, are conserved proteins with debated functions.

Purpose of the Study:

  • To review the current understanding of RANBP9 and RANBP10 roles in the DNA Damage Response (DDR).
  • To highlight the potential involvement of Scorpins in genotoxic stress response pathways.
  • To explore RANBP9 and RANBP10 as potential targets or regulators in cancer treatment.

Main Methods:

  • Literature review of studies on RANBP9, RANBP10, and DDR pathways.
  • Analysis of protein similarities and functional implications of Scorpins.
  • Examination of evidence linking Scorpins to genotoxic stress and cell fate.

Main Results:

  • RANBP9 is implicated in cell proliferation, survival, and ATM signaling following DNA damage, with its absence increasing genotoxic sensitivity.
  • RANBP10 shares structural similarities with RANBP9 and shows phosphorylation upon genotoxic stress, suggesting a potential role in DDR.
  • Both Scorpins may act individually or synergistically in cellular responses to DNA damage.

Conclusions:

  • RANBP9 and RANBP10 are potentially significant, yet understudied, components of the DDR.
  • Further research into Scorpins' functions could reveal novel therapeutic strategies for cancer treatment.
  • Elucidating the precise roles of RANBP9 and RANBP10 in DDR is essential for advancing oncology.