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- W136121639 abstract "Colon cancer stem cells (CSCs) are implicated in colorectal cancer carcinogenesis, metastasis, and therapeutic resistance. The identification of these cells could help to develop novel therapeutic strategies. Doublecortin-like kinase 1 (DCLK1) has been viewed as a marker for gastrointestinal stem cells that fuel the self-renewal process, however others view them as a marker of Tuft cells or as an enteroendocrine subtype. The purpose of this study was to use a colon cancer cell line to identify and characterize the stem-like characteristics of the DCLK1+ cell population.To enrich stem-like cells, HCT116 cells (derived from colon adenocarcinomas) were cultured using serum-free media to form spheres under both normal oxygen and hypoxia condition. DCLK1 transcript expression in the adherent parental cells and spheroids was quantified using quantitative real time reverse transcription- polymerase chain reaction [(q)RT-PCR]. DCLK1 protein expression was determined using flow cytometry. Self-renewal capability from adherent parental cells and spheroids was determined using extreme limiting dilution analysis (ELDA).Under both normal oxygen and hypoxia condition, the adherent parental cells were composed of cells that express low levels of DCLK1. However, spheroids exhibited an increased frequency of cells expressing DCLK1 on both mRNA and protein levels. Cells derived from spheroids also possess stronger self-renewal capability.The higher fraction of DCLK1+ cells exhibited by spheroids and hypoxia reflects the stem-like characteristics of these cells. DCLK1 may represent an ideal marker to study and develop effective strategies to overcome chemo-resistance and relapse of colon cancer." @default.
- W136121639 created "2016-06-24" @default.
- W136121639 creator A5034606017 @default.
- W136121639 creator A5035522380 @default.
- W136121639 date "2013-04-01" @default.
- W136121639 modified "2023-09-23" @default.
- W136121639 title "Doublecortin-like kinase 1 exhibits cancer stem cell-like characteristics in a human colon cancer cell line." @default.
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- W136121639 doi "https://doi.org/10.3978/j.issn.1000-9604.2013.03.02" @default.
- W136121639 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3626979" @default.
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- W136121639 hasPublicationYear "2013" @default.
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