Interferon signaling promotes tolerance to chromosomal instability during metastatic evolution in renal cancer

Luigi Perelli1, Federica Carbone2,3, Li Zhang2

  • 1Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. LPerelli@mdanderson.org.

Nature Cancer
|June 26, 2023
PubMed

Insights

Understanding cancer metastasis is key. This study reveals how genetic changes, like 9p21 disruption and interferon pathway alterations, drive kidney cancer spread and how interferon signaling limits aggressive tumor evolution.

Area of Science:

  • Oncology
  • Genetics
  • Cancer Biology

Background:

  • Metastatic dissemination is a critical determinant of aggressive cancers.
  • Understanding the molecular drivers of metastatic progression is essential for developing effective therapies.

Purpose of the Study:

  • To investigate the genetic alterations driving metastatic renal tumors.
  • To elucidate the role of interferon signaling in constraining aneuploid clone propagation during cancer evolution.

Main Methods:

  • In vivo CRISPR-Cas9 genome editing to generate somatic mosaic genetically engineered models.
  • Cross-species analysis of copy number variations.
  • In vitro and in vivo genomic engineering with loss-of-function studies.
  • Development of a model for partial trisomy of chromosome 21q.

Main Results:

  • Disruption of the 9p21 locus drives systemic disease through rapid acquisition of complex karyotypes.
  • Recurrent copy number variations, including 21q loss and interferon pathway dysregulation, are major drivers of metastatic potential.
  • Interferon receptor gene cluster exhibits a dosage-dependent effect in managing chromosomal instability during metastatic progression.

Conclusions:

  • Interferon signaling plays a crucial role in constraining the propagation of aneuploid clones in cancer evolution.
  • This work provides critical knowledge on the drivers of renal cell carcinoma progression.
  • Identified key molecular routes and genetic alterations contributing to metastatic dissemination in kidney cancer.

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