ArticleCancers2021
CD44v6 Defines a New Population of Circulating Tumor Cells Not Expressing EpCAM.
Article in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed, 9 citations in OpenAlex.
- Single-cell RNA sequencing of circulating tumour cells in colorectal cancer.Molecular biology reports · 2026Article
- Circulating tumor cell-derived lines exhibit an amoeboid mode of migration.Scientific reports · 2026Article
- Cancer stem cell-driven drug resistance in colorectal carcinoma: molecular aspects and therapeutic potentials.Molecular cancer · 2026Review
- Advances in novel strategies for isolation, characterization, and analysis of CTCs and ctDNA.Therapeutic advances in medical oncology · 2023Review
- CD44v6, STn & O-GD2: promising tumor associated antigens paving the way for new targeted cancer therapies.Frontiers in immunology · 2023Review
- Understanding the versatile roles and applications of EpCAM in cancers: from bench to bedside.Experimental hematology & oncology · 2022Review
- Circulating tumor cell isolation for cancer diagnosis and prognosis.EBioMedicine · 2022Review
- Article
Corrections and comments
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Authors and funding
26 authors at 7 institutions in 3 countries.
Funding
Abstract
Circulating tumor cells (CTCs) are promising diagnostic and prognostic tools for clinical use. In several cancers, including colorectal and breast, the CTC load has been associated with a therapeutic response as well as progression-free and overall survival. However, counting and isolating CTCs remains sub-optimal because they are currently largely identified by epithelial markers such as EpCAM. New, complementary CTC surface markers are therefore urgently needed. We previously demonstrated that a splice variant of CD44, CD44 variable alternative exon 6 (CD44v6), is highly and specifically expressed by CTC cell lines derived from blood samples in colorectal cancer (CRC) patients. Two different approaches-immune detection coupled with magnetic beads and fluorescence-activated cell sorting-were optimized to purify CTCs from patient blood samples based on high expressions of CD44v6. We revealed the potential of the CD44v6 as a complementary marker to EpCAM to detect and purify CTCs in colorectal cancer blood samples. Furthermore, this marker is not restricted to colorectal cancer since CD44v6 is also expressed on CTCs from breast cancer patients. Overall, these results strongly suggest that CD44v6 could be useful to enumerate and purify CTCs from cancers of different origins, paving the way to more efficacious combined markers that encompass CTC heterogeneity.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.