4.7 Article

Dual antisense oligonucleotide targeting miR-21/miR-155 synergize photodynamic therapy to treat triple-negative breast cancer and inhibit metastasis

期刊

BIOMEDICINE & PHARMACOTHERAPY
卷 146, 期 -, 页码 -

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ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.biopha.2021.112564

关键词

miRNA; Photodynamic therapy; ZIF-90; Triple negative breast cancer; Synergistic therapy

资金

  1. Top-notch Academic Programs Project of Jiangsu Higher Education Institutions [PPZY2015B146]
  2. 2018 Innovative Research Team of Jiangsu Province

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This study developed a strategy using nanoparticles to co-deliver antisense oligonucleotides and photosensitizers into tumor cells, effectively inhibiting proliferation and metastasis of triple negative breast cancer cells.
Triple negative breast cancer (TNBC) is a greatly aggressive subtype of breast cancer with high recurrence and mortality rates. Chemotherapy as a primary treatment for cancer is limited due to toxic side effects and drug resistance. Therefore, low toxicity and more effective breast cancer therapeutic approaches are greatly desired. In this study, a strategy which using ZIF-90 nanoparticles co-deliver Ce6-anti-miR-21 and Ce6-anti-miR-155 into the tumor cells was developed. Due to the pH responsive drug release of ZIF-90, antisense oligonucleotides (antimiRNAs) and photosensitizers are able to be efficiently released inside tumor microenvironment. The nano delivery system captures overexpressed oncogenic miRNAs while the photosensitizer Ce6 generates ROS under light irradiation to effectively induce the apoptosis of tumor cell. This combinatorial effect was verified by results showing that the purposed therapic method could effectively inhibit tumor cell proliferation and metastasis. The concept of antisense oligonucleotide combined with photodynamic therapy has great potential in cancer treatment or adjuvant therapy.

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