Deficient arsenic methylation and global proteomic reprogramming in human keratinocytes during arsenic-induced skin carcinogenesis - Takeaways - MDSpire

Deficient arsenic methylation and global proteomic reprogramming in human keratinocytes during arsenic-induced skin carcinogenesis

  • By

  • Alexandra N. Nail

  • Mayukh Banerjee

  • Manting Xu

  • Caitlin H. Reynolds

  • Miroslav Stýblo

  • Peter H. Cable

  • Daniel W. Wilkey

  • Michael L. Merchant

  • Ana P. Ferragut Cardoso

  • Shelia D. Thomas

  • J. Christopher States

  • June 27, 2026

  • 0 min

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  • 1

    Chronic exposure to inorganic arsenic affects approximately 220 million people and is linked to non-melanoma skin cancer development.

  • 2

    HaCaT cells exposed to inorganic arsenite for 28 weeks transform into an aggressive cSCC-like phenotype and can form tumors in immunocompromised mice.

  • 3

    Comprehensive longitudinal proteomic profiling is necessary to understand the protein expression changes during iAsIII-induced malignant transformation.

  • 4

    Arsenic methylation status may influence the molecular mechanisms driving keratinocyte malignant transformation, as HaCaT cells do not methylate iAsIII.

  • 5

    The study aims to assess arsenic metabolism across various human keratinocyte lines to identify key metabolites and molecular targets in arsenic-induced cSCC.

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