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Intramucosal Inoculation of Squamous Cell Carcinoma Cells in Mice for Tumor Immune Profiling and Treatment Response Assessment
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Apoptosis resistance-related ABCB5 and DNaseX (Apo10) expression in oral carcinogenesis

Martin Grimm1, Marcel Cetindis, Max Lehmann

  • 1Department of Oral and Maxillofacial Surgery.

Acta Odontologica Scandinavica
|September 20, 2014
PubMed
Abstract

Insights

Apoptosis resistance in oral cancer involves ATP-binding cassette (ABC) transporter ABCB5 and DNaseX (Apo10). Their expression increases during oral squamous cell carcinoma (OSCC) development, suggesting potential targets for chemoprevention.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Apoptosis resistance is a key driver in oral squamous cell carcinoma (OSCC) development.
  • Understanding molecular mechanisms of resistance is crucial for effective cancer treatment and prevention.

Purpose of the Study:

  • To investigate the expression of ATP-binding cassette (ABC) transporter ABCB5 and DNaseX (Apo10) in oral carcinogenesis.
  • To evaluate the role of these proteins in the progression from normal oral mucosa to OSCC.

Main Methods:

  • Immunohistochemistry was used to analyze ABCB5 and Apo10 expression.
  • Specimens included normal oral mucosa, oral precursor lesions (hyperplasia, SIN I-III), and OSCC.

Main Results:

  • ABCB5 and Apo10 expression were significantly elevated in OSCC compared to normal tissues.
  • ABCB5 expression decreased in OSCC relative to precursor lesions (SIN I-III).
  • Apo10 expression showed no significant difference between OSCC and SIN I-III.

Conclusions:

  • This study presents novel findings on ABCB5 and Apo10 expression during multi-step OSCC carcinogenesis.
  • Targeting drug resistance in ABCB5+ and Apo10+ cells using natural compounds could enhance apoptosis sensitivity.
  • These findings suggest potential applications in chemoprevention strategies for OSCC.
Keywords:
ATP-binding cassette (ABC) transporterDNaseXapoptosis resistanceearly detection and diagnosisoral squamous cell carcinoma

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