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Lamin B receptor upregulation in metastatic melanoma causes nuclear envelope fragility in confined migration during cancer invasion - PubMed

2 days ago
  • #metastasis
  • #melanoma
  • #nuclear envelope
  • Metastatic melanoma cells exhibit increased nuclear envelope (NE) fragility during confined migration, leading to NE rupture and DNA damage.
  • Lamin B receptor (LBR) upregulation is linked to melanoma progression and NE fragility, promoting nuclear deformability and instability.
  • LBR's sterol reductase activity is essential for NE fragility, contributing to nuclear membrane blebs and rupture.
  • Higher LBR levels correlate with increased metastatic invasion, NE fragility, and reduced patient survival in melanoma.
  • The study suggests LBR-driven nuclear instability as a mechanism for genetic heterogeneity in aggressive melanomas.