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Activation of Apoptosis by Cytoplasmic Microinjection of Cytochrome c
07:42

Activation of Apoptosis by Cytoplasmic Microinjection of Cytochrome c

Published on: June 29, 2011

[Inducing apoptosis of HeLa cell lines by transfection of c-myc antisense oligonucleotides]

Rong-rong Li1, Dao-Xin Ma, Yu-feng Cheng

  • 1Department of Radiotherapy, Qilu Hospital, Shandong University, Jinan 250012, China.

Sichuan Da Xue Xue Bao. Yi Xue Ban = Journal of Sichuan University. Medical Science Edition
|February 14, 2006
PubMed
Abstract

Insights

Transfecting HeLa cells with c-myc antisense oligonucleotides (ASODN) effectively reduced c-myc expression and induced apoptosis. This approach enhanced tumor cell radiosensitivity, offering a potential new cancer treatment strategy.

Area of Science:

  • Molecular Biology
  • Cancer Research
  • Cell Biology

Context:

  • The c-myc oncogene plays a crucial role in cell proliferation and apoptosis.
  • Antisense oligonucleotides (ASODN) offer a targeted approach to modulate gene expression.
  • Enhancing tumor cell radiosensitivity is a key goal in cancer therapy.

Purpose:

  • To investigate the impact of c-myc ASODN on HeLa cell apoptosis.
  • To evaluate the potential of c-myc ASODN to enhance tumor cell radiosensitivity.

Summary:

  • Transfection with c-myc ASODN significantly reduced c-myc mRNA and protein levels in HeLa cells.
  • Giemsa staining and DNA ladder assays confirmed increased apoptosis in ASODN-transfected cells.
  • The apoptosis rate in cells treated with c-myc ASODN and irradiation was significantly higher than in control groups.

Impact:

  • c-myc ASODN effectively down-regulates c-myc expression.
  • Transfection with c-myc ASODN induces apoptosis and enhances the radiosensitivity of HeLa cells.
  • This study presents a promising method for improving cancer treatment outcomes.

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