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MicroRNA15b regulates apoptosis of cutaneous squamous cell carcinoma SCL-1 cell line: a mechanism study

S-H Zhang1, Z-Y Li, Z-J Liu

  • 1Department of Emergency, the Affiliated Hospital of Hebei, University of Engineering, Handan, Hebei, China. zhiyingliqwe@sina.com.

European Review for Medical and Pharmacological Sciences
|February 7, 2017
PubMed
Abstract

Insights

MicroRNA15b significantly reduces cutaneous squamous cell carcinoma cell viability and promotes apoptosis by down-regulating survivin. This microRNA (miRNA) shows potential as a therapeutic target for this skin cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Dermatology

Background:

  • Cutaneous squamous cell carcinoma (cSCC) is a common malignant skin tumor.
  • MicroRNAs (miRNAs) are key regulators of cell growth and survival.
  • Understanding miRNA roles in cSCC is crucial for developing new therapies.

Purpose of the Study:

  • To investigate the effect of microRNA15b (miR-15b) on the viability and apoptosis of the SCL-1 cSCC cell line.
  • To elucidate the role of survivin in miR-15b-mediated effects on cSCC cells.

Main Methods:

  • Synthesis and transfection of miR-15b and control miRNA into SCL-1 cells.
  • Assessment of cell viability using MTT assays and apoptosis via flow cytometry.
  • Western blot analysis for survivin expression; further functional studies using siRNA and overexpression plasmids.

Main Results:

  • miR-15b transfection significantly decreased SCL-1 cell viability and enhanced apoptosis compared to controls.
  • miR-15b transfection led to decreased survivin protein expression.
  • Inhibition of survivin potentiated miR-15b-induced apoptosis, while survivin overexpression attenuated this effect.

Conclusions:

  • MicroRNA15b reduces cSCC cell viability and promotes apoptosis by down-regulating survivin.
  • miR-15b represents a potential therapeutic target for cutaneous squamous cell carcinoma.

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