scholarly journals The CEA−/lo colorectal cancer cell population harbors cancer stem cells and metastatic cells

Oncotarget ◽  
2016 ◽  
Vol 7 (49) ◽  
pp. 80700-80715 ◽  
Author(s):  
Chang Yan ◽  
Yibing Hu ◽  
Bo Zhang ◽  
Lei Mu ◽  
Kaiyu Huang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Stem Cells ◽  
Cancer Stem Cells ◽  
Cancer Cell ◽  
Cell Population ◽  
Colorectal Cancer Cell ◽  
Metastatic Cells ◽  
Cancer Cell Population

scholarly journals Establishment of Highly Tumorigenic Human Colorectal Cancer Cell Line (CR4) with Properties of Putative Cancer Stem Cells

PLoS ONE ◽  
2014 ◽  
Vol 9 (6) ◽  
pp. e99091 ◽  
Author(s):  
Rebecca A. Rowehl ◽  
Stephanie Burke ◽  
Agnieszka B. Bialkowska ◽  
Donald W. Pettet ◽  
Leahana Rowehl ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Stem Cells ◽  
Cancer Stem Cells ◽  
Cell Line ◽  
Cancer Cell ◽  
Cancer Cell Line ◽  
Colorectal Cancer Cell ◽  
Colorectal Cancer Cell Line ◽  
Human Colorectal Cancer ◽  
Human Colorectal Cancer Cell

scholarly journals Mathematical Modeling Reveals the Factors Involved in the Phenomena of Cancer Stem Cells Stabilization

2018 ◽  
Author(s):  
N. Bessonov ◽  
G. Pinna ◽  
A. Minarsky ◽  
A. Harel-Bellan ◽  
N. Morozova
Keyword(s):  
Mathematical Model ◽  
Stem Cells ◽  
Population Dynamics ◽  
Cancer Stem Cells ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Cell Population ◽  
Cell Population Dynamics ◽  
Cancer Cell Population ◽  
Population Stabilization

AbstractCancer Stem Cells (CSC), a subset of cancer cells resembling normal stem cells with self-renewal and asymmetric division capabilities, are present at various but low proportions in many tumors and are thought to be responsible for tumor relapses following conventional cancer therapies. In vitro, most intriguingly, when isolated, CSCs return to their original proportion level as shown by various investigators. This phenomenon still remains to be explained.We suggest a mathematical model of cancer cell population dynamics, based on the main parameters of cell population dynamics, including the proliferation rates, the rates of cell death and the frequency of symmetric and asymmetric cell divisions both in CSCs and in non-CSCs. This model should help elucidating some important factors underlying the dynamics of the two populations, first of all, the phenomena of cancer stem cell population stabilization.Author SummaryCancer Stem Cells (CSC) present a subset of cancer cells which is thought to be responsible for tumor growth. That is why CSC are also named “tumor initiation cells”. Additionally, it was shown that CSC are resistant to chemo- and radio-therapies which suggests that these cells can be responsible for tumor relapses after these treatments. Experimental data in cancer cell lines have shown the intriguing phenomena of CSC population stability, which means that isolated CSC population rapidly stabilizes at its characteristic level (the relative proportion of CSC in a whole cancer population). We suggest a mathematical model of cancer cell population dynamics, based on experimentally measured dynamics of CSC population stabilization and including main parameters of cell population growth.We have computationally predicted probability of different scenarios of cancer cell behavior for each experimental case with measurable growth parameters. Moreover, we provide an analytical tool for elucidating important biochemical factors responsible for a particular dynamics of CSC population.The results may have important implications in therapeutic, because the destroying of a set of factors underlying CSC stability may help to avoid tumor relapses.

Colorectal cancer stem cells: Characterization and functional analysis

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 4124-4124
Author(s):  
T. Yeung ◽  
J. Wilding ◽  
W. Bodmer
Keyword(s):  
Colorectal Cancer ◽  
Stem Cells ◽  
Stem Cell ◽  
Cancer Stem Cells ◽  
Cancer Cells ◽  
Cell Lines ◽  
Cancer Cell ◽  
Tumour Growth ◽  
Colorectal Cancer Cell Lines ◽  
Colorectal Cancer Stem Cells

4124 Background: Cancer stem cells are defined as cells within a tumour that are able to self-renew and differentiate into all cell lineages within that tumour. With our extensive panel of colorectal cell lines, our aims are: 1) To characterise and isolate cancer stem cells based on stem cell markers, morphological appearances and the ability to form multiple lineages; 2) To understand how cancer stem cells drive tumour growth and progression. Methods: 1) Fluorescent Activated Cell Sorting (FACS); 2) In vitro soft agar clonogenic and Matrigel differentiation assays; 3) In vivo tumourigenic NOD/SCID mice assay; 4) Confocal immunofluorescence imaging. Results: 1) A subpopulation of cells can differentiate into crypt-like megacolonies, retaining the ability to self-renew and differentiate. SW1222 cell line forms heterogeneous colonies when single cells are plated in Matrigel. Megacolonies can both self-renew and form terminally differentiated small colonies, whereas small colonies cannot form megacolonies. Megacolonies develop crypt-like structures and increase their expression of differentiation markers (CDX-1, CK-20) over time. Experiments are currently under way to confirm that cells from megacolonies are able to initiate tumours in NOD/SCID mice. Some cell lines retain the ability to differentiate into both neuroendocrine and epithelial lineages. 2) CD44+CD24+ enriches for the cancer stem cell population. Colorectal cancer cell lines HCT116, HT29, LS180, LS174T and SW1222 express both CD44 and CD24. The CD44+CD24+ subpopulation is the most clonogenic. In SW1222, CD44+CD24+ cells enrich for megacolonies and can reform all four CD44/CD24 subpopulations. 3) Hypoxia reduces differentiation, increases stem-like phenotype and enhances clonogenicity. Hypoxia increases the proportion of undifferentiated colorectal cancer cells when plated on Matrigel and increases clonogenicity. Conclusions: 1) Colorectal cancer cell lines contain subpopulations of cells that have the ability to self-renew, differentiate and drive tumour growth, and may be characterised by their cell surface markers and colony morphology. 2) CD44+CD24+ can be used as markers for colorectal cancer stem cells. 3) Hypoxia increases the stem-like phenotype of cancer cells, reduces differentiation and increases clonogenicity. No significant financial relationships to disclose.

Differentiated cancer cell-originated lactate promotes the self-renewal of cancer stem cells in patient-derived colorectal cancer organoids

2020 ◽  
Vol 493 ◽  
pp. 236-244
Author(s):  
Hui Zhao ◽  
Chang Yan ◽  
Yibing Hu ◽  
Lei Mu ◽  
Shuang Liu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Stem Cells ◽  
Cancer Stem Cells ◽  
Cancer Cell ◽  
The Self ◽  
Self Renewal

CD133/CD166/Ki-67 Triple Immunouorescence Assessment for Putative Cancer Stem Cells in Colon Carcinoma*

2014 ◽  
Vol 23 (2) ◽  
pp. 161-170 ◽  
Author(s):  
Claudiu Margaritescu ◽  
Daniel Pirici ◽  
Irina Cherciu ◽  
Alexandru Barbalan ◽  
Tatiana Cârtâna ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Stem Cells ◽  
Colon Cancer ◽  
Cancer Stem Cells ◽  
Colon Carcinoma ◽  
Sodium Dodecyl ◽  
High Grade Dysplasia ◽  
Early Event ◽  
Low Grade ◽  
High Grade

Background & Aims: Colorectal cancer represents the third most common malignancy and the fourth most common cause of cancer death worldwide. The existence of drug-resistant colon cancer stem cells is thought to be one of the most important reasons behind treatment failure in colon cancer, their existence putatively leading to metastasis and recurrences. The aim of our study was to investigate the immunoexpression patterns of CD133 and CD166 in colon carcinoma, both individually and in combination, assessing their significance as prognostic markers.Methods. A total of 45 retrospective colon adenocarcinoma cases were investigated by enzymatic and multiple fluorescence immunohistochemistry for their CD133 and CD166 expression and colocalization.Results. Both CD133 and CD166 were expressed to different extents in all cancer specimens, with apredominant cytoplasmic pattern for CD133 and a more obvious membranous-like pattern for CD166.Overall, when comparing their reactivity for the tumoral tissue, CD166 expression areas seemed to be smaller than those of CD133. However, there was a direct correlation between CD133 and CD166 expression levels throughout the entire spectrum of lesions, with higher values for dysplastic lesions. Colocalization of CD133/ CD166 was obvious at the level of cells membranes, with higher coeficients in high grade dysplasia, followed by well and moderate differentiated tumours.Conclusions. CD133/CD166 colocalization is an early event occurring in colon tumorigenesis, with thehighest coeficients recorded for patients with high grade dysplasia, followed by well differentiated tumours. Thus, we consider that the coexpression of these two markers could be useful for further prognostic andtherapeutically stratification of patients with colon cancer.Abbreviations: AJCC - American Joint Committee on Cancer; CCD - charge-coupled device camera sensor; CD133 - prominin-1 (PROM1); CD166 - Activated Leukocyte Cell Adhesion Molecule (ALCAM); CRC - colorectal cancer; CSC - cancer stem cells; DAB - 3,3'-diaminobenzidine chromogen; DAPI - 4',6-diamidino- 2-phenylindole; HE - Hematoxylin and eosin staining; HGD - high grade dysplasia; HRP - horseradish peroxidase; LGD - low grade dysplasia; SDS - sodium dodecyl sulfate*Part of this work has been accepted as a poster presentation at the Digestive Disease Week (DDW) meeting, Chicago, IL, USA May 3-6, 2014

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