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CRISPR-mediated MECOM depletion retards tumor growth by reducing cancer stem cell properties in lung squamous cell

Yuanyuan Ma1, Bin Kang2, Shaolei Li1

  • 1Department of Thoracic Surgery II, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital and Institute, Beijing 100142, China.

Molecular Therapy : the Journal of the American Society of Gene Therapy
|June 23, 2022
PubMed

Insights

Researchers identified MECOM as a therapeutic target for lung squamous cell carcinoma (LUSC). CRISPR-mediated MECOM depletion using targeted adenovirus effectively inhibited LUSC tumor growth, offering a novel treatment strategy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Gene Therapy

Background:

  • Targeted therapy for lung squamous cell carcinoma (LUSC) is challenging due to limited therapeutic targets.
  • Identifying novel molecular targets is crucial for developing effective LUSC treatments.

Purpose of the Study:

  • To identify and validate MECOM as a therapeutic target for LUSC.
  • To develop a targeted gene therapy approach for LUSC using CRISPR-mediated MECOM depletion.

Main Methods:

  • Screening of 38 amplified genes in LUSC tumors and patient-derived xenografts (PDXs) using CRISPR technology.
  • Assessing the role of MECOM in LUSC cell lines, including cancer stem cell (CSC) properties.
  • Developing and testing an adenovirus-mediated delivery system for CRISPR-Cas9 targeting of MECOM in LUSC models.

Main Results:

  • MECOM was identified as a frequently amplified gene in LUSC, with high expression correlating with poor prognosis.
  • MECOM manipulation affected cancer stem cell (CSC) properties in LUSC cell lines.
  • Targeted delivery of CRISPR-mediated MECOM depletion via engineered adenovirus specifically inhibited LUSC tumor growth in vivo.

Conclusions:

  • MECOM is a promising therapeutic target for lung squamous cell carcinoma.
  • Adenovirus-mediated CRISPR delivery targeting MECOM offers a potential novel and specific therapeutic strategy for LUSC.
Keywords:
CRISPRMECOMcancer stem cellslung squamous cell carcinoma

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