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Drug Tolerant Cells: An Emerging Target With Unique Transcriptomic Features

Divya Niveditha1, Harshita Sharma1, Anirudha Sahu1

  • 1Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani, Pilani, India.

Cancer Informatics
|October 23, 2019
PubMed

Insights

Drug-tolerant cancer cells survive chemotherapy, potentially leading to resistance and recurrence. Understanding their unique gene expression is key to developing new treatments that target these cells and prevent tumor regrowth.

Area of Science:

  • Oncology
  • Cancer Biology
  • Molecular Medicine

Background:

  • Cancer therapy outcomes are often compromised by acquired drug resistance.
  • A subpopulation of tumor cells can survive intense drug treatment, contributing to long-term resistance.
  • These drug-tolerant cells are crucial for tumor cell survival and eventual resistance acquisition.

Purpose of the Study:

  • To investigate the transcriptomic characteristics of drug-tolerant osteosarcoma cells.
  • To compare the gene expression profiles of minimally dividing tolerant cells with proliferative persisters and resistant cells.
  • To identify potential therapeutic targets within drug-tolerant cells to prevent tumor recurrence.

Main Methods:

  • Analysis of the transcriptome of osteosarcoma cells surviving high-dose cisplatin treatment.
  • Comparative transcriptomic analysis between drug-tolerant cells, proliferative persisters, and derived resistant cells.

Main Results:

  • Identification of a unique transcriptome specific to drug-tolerant osteosarcoma cells.
  • Characterization of the molecular features distinguishing tolerant cells from more proliferative or resistant populations.
  • Demonstration that drug-tolerant cells exhibit minimal proliferation.

Conclusions:

  • Drug-tolerant cells possess distinct transcriptomic profiles that differ from resistant or sensitive cells.
  • Targeting these specific molecular features of tolerant cells offers a promising strategy to impede tumor recurrence.
  • Understanding drug tolerance mechanisms is critical for improving long-term cancer therapy efficacy.
Keywords:
OsteosarcomaRNA sequencingdrug resistancedrug-tolerant persisterepigenetic alteration

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