What question did this study set out to answer?

This research aims to explore the biological characteristics of circulating tumor cells (CTCs) and identify methods for establishing CTC cell lines.

Cell Lines of Circulating Tumor Cells: What Is Known and What Needs to Be Resolved

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Review discusses circulating tumor cell characteristics and methods for long-term culture, highlighting necessary advancements.

This research aims to explore the biological characteristics of circulating tumor cells (CTCs) and identify methods for establishing CTC cell lines.
Reviewed 39 circulating tumor cell lines reported by 2021.
Analyzed short-term culture approaches and strategies for long-term culture establishment.
Evaluated negative selection, hypoxic conditions, and three-dimensional culture techniques for culturing CTCs.
Only a limited number of CTC cell lines have been established to date, with ongoing challenges in long-term culture.
Preferred conditions for culturing CTCs include management of hypoxic environments and three-dimensional setups.
A reliable method for establishing CTC cell lines has not yet been developed, indicating further research is needed.

Shimada et al. (2022) studied this question.

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