Curcuminoids—Cellular Uptake by Human Primary Colon Cancer Cells As Quantitated by a Sensitive Hplc Assay and Its Relation with the Inhibition of Proliferation and Apoptosis

2007 ◽  
Vol 55 (20) ◽  
pp. 8213-8222 ◽  
Author(s):  
Yi-Chiang Hsu ◽  
Hsiao-Ching Weng ◽  
ShiuRu Lin ◽  
Yie W. Chien
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Cellular Uptake ◽  
Hplc Assay ◽  
Colon Cancer Cells ◽  
Inhibition Of Proliferation ◽  
Proliferation And Apoptosis ◽  
Primary Colon Cancer ◽  
Primary Colon

Xanthohumol reduces inflammation and cell metabolism in HT29 primary colon cancer cells

2021 ◽  
pp. 1-9
Author(s):  
Margalida Torrens-Mas ◽  
Marina Alorda-Clara ◽  
Maria Martínez-Vigara ◽  
Pilar Roca ◽  
Jorge Sastre-Serra ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Cell Metabolism ◽  
Colon Cancer Cells ◽  
Primary Colon Cancer ◽  
Primary Colon

Abstract 252: Molecular characterization of cancer stem cells isolated from primary colon cancer cells.

2013 ◽  
Author(s):  
Martin Lange ◽  
Dirk Schumacher ◽  
Thomas Hauling ◽  
Christian Regenbrecht ◽  
Oliver Politz ◽  
...  
Keyword(s):  
Stem Cells ◽  
Colon Cancer ◽  
Cancer Stem Cells ◽  
Cancer Cells ◽  
Molecular Characterization ◽  
Colon Cancer Cells ◽  
Primary Colon Cancer ◽  
Primary Colon

scholarly journals Identification of histone methyltransferase NSD2 as an important oncogenic gene in colorectal cancer

2021 ◽  
Vol 12 (11) ◽  
Author(s):  
Li-hao Zhao ◽  
Quan Li ◽  
Zhi-Jun Huang ◽  
Mi-Xue Sun ◽  
Jing-jing Lu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Colon Cancer ◽  
Cell Proliferation ◽  
Cancer Cells ◽  
Histone Methyltransferase ◽  
Migration And Invasion ◽  
Colon Cancer Cells ◽  
Akt Activation ◽  
Primary Colon Cancer ◽  
Primary Colon

AbstractColorectal cancer (CRC) is the second common cause of cancer-related human mortalities. Dysregulation of histone 3 (H3) methylation could lead to transcriptional activation of multiple oncogenes, which is closely associated with CRC tumorigenesis and progression. Nuclear receptor-binding SET Domain protein 2 (NSD2) is a key histone methyltransferase catalyzing histone H3 lysine 36 dimethylation (H3K36me2). Its expression, the potential functions, and molecular mechanisms in CRC are studied here. Gene Expression Profiling Interactive Analysis (GEPIA) bioinformatics results showed that the NSD2 mRNA expression is elevated in both colon cancers and rectal cancers. Furthermore, NSD2 mRNA and protein expression levels in local colon cancer tissues are significantly higher than those in matched surrounding normal tissues. In primary human colon cancer cells and established CRC cell lines, shRNA-induced silencing or CRISPR/Cas9-induced knockout of NSD2 inhibited cell viability, proliferation, cell cycle progression, migration, and invasion. Furthermore, NSD2 shRNA or knockout induced mitochondrial depolarization, DNA damage, and apoptosis in the primary and established CRC cells. Contrarily, ectopic NSD2 overexpression in primary colon cancer cells further enhanced cell proliferation, migration, and invasion. H3K36me2, expressions of multiple oncogenes (ADAM9, EGFR, Sox2, Bcl-2, SYK, and MET) and Akt activation were significantly decreased after NSD2 silencing or knockout in primary colon cancer cells. Their levels were however increased after ectopic NSD2 overexpression. A catalytic inactive NSD2 (Y1179A) also inhibited H3K36me2, multiple oncogenes expression, and Akt activation, as well as cell proliferation and migration in primary colon cancer cells. In vivo, intratumoral injection of adeno-associated virus (AAV)-packed NSD2 shRNA largely inhibited primary colon cancer cell xenograft growth in nude mice. Together, NSD2 exerted oncogenic functions in CRC and could be a promising therapeutic target.

Response of Primary Colon Cancer Cells in Hybrid Spheroids to 5-Fluorouracil

1993 ◽  
Vol 11 (3) ◽  
pp. 291-298 ◽  
Author(s):  
Bozidar Djordjevic ◽  
Christopher S. Lange ◽  
Ronald R. Allison ◽  
Marvin Rotman
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Colon Cancer Cells ◽  
Primary Colon Cancer ◽  
Primary Colon

scholarly journals Activation of Akt and MAPK pathways enhances the tumorigenicity of CD133+ primary colon cancer cells

2010 ◽  
Vol 31 (8) ◽  
pp. 1376-1380 ◽  
Author(s):  
Y. K. Wang ◽  
Y. L. Zhu ◽  
F. M. Qiu ◽  
T. Zhang ◽  
Z. G. Chen ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Colon Cancer Cells ◽  
Mapk Pathways ◽  
Primary Colon Cancer ◽  
Primary Colon

Colon cancer cells maintain low levels of pyruvate to avoid cell death caused by inhibition of HDAC1/HDAC3

2008 ◽  
Vol 417 (1) ◽  
pp. 379-389 ◽  
Author(s):  
Muthusamy Thangaraju ◽  
Kristina N. Carswell ◽  
Puttur D. Prasad ◽  
Vadivel Ganapathy
Keyword(s):  
Colon Cancer ◽  
Cell Death ◽  
Cancer Cells ◽  
Human Colon ◽  
Colon Cancer Cells ◽  
Human Colon Cancer ◽  
Gene Coding ◽  
Primary Colon Cancer ◽  
Primary Colon ◽  
Low Levels

Human colon cancer cells and primary colon cancer silence the gene coding for LDH (lactate dehydrogenase)-B and up-regulate the gene coding for LDH-A, resulting in effective conversion of pyruvate into lactate. This is associated with markedly reduced levels of pyruvate in cancer cells compared with non-malignant cells. The silencing of LDH-B in cancer cells occurs via DNA methylation, with involvement of the DNMTs (DNA methyltransferases) DNMT1 and DNMT3b. Colon cancer is also associated with the expression of pyruvate kinase M2, a splice variant with low catalytic activity. We have shown recently that pyruvate is an inhibitor of HDACs (histone deacetylases). Here we show that pyruvate is a specific inhibitor of HDAC1 and HDAC3. Lactate has no effect on any of the HDACs examined. Colon cancer cells exhibit increased HDAC activity compared with non-malignant cells. HDAC1 and HDAC3 are up-regulated in colon cancer cells and in primary colon cancer, and siRNA (small interfering RNA)-mediated silencing of HDAC1 and HDAC3 in colon cancer cells induces apoptosis. Colon cancer cells silence SLC5A8, the gene coding for a Na+-coupled pyruvate transporter. Heterologous expression of SLC5A8 in the human colon cancer cell line SW480 leads to inhibition of HDAC activity when cultured in the presence of pyruvate. This process is associated with an increase in intracellular levels of pyruvate, increase in the acetylation status of histone H4, and enhanced cell death. These studies show that cancer cells effectively maintain low levels of pyruvate to prevent inhibition of HDAC1/HDAC3 and thereby to evade cell death.

scholarly journals Inhibition of Interleukin-6-Induced Matrix Metalloproteinase-2 Expression and Invasive Ability of Lemon Peel Polyphenol Extract in Human Primary Colon Cancer Cells

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7076
Author(s):  
Valentina Pagliara ◽  
Marina De Rosa ◽  
Paola Di Donato ◽  
Rosarita Nasso ◽  
Antonio D’Errico ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cell Migration ◽  
Cancer Cells ◽  
Interleukin 6 ◽  
Colon Cancer Cells ◽  
Expression Levels ◽  
Stat3 Phosphorylation ◽  
Anti Cancer ◽  
Primary Colon Cancer ◽  
Primary Colon

Among matrix metalloproteinases (MMPs), MMP-9/2 are key enzymes involved in the proteolysis of extracellular matrices in the inflammatory process and in cancer. Since MMP-9/2 expression levels, activity, and secretion is up-regulated during inflammation in response to pro-inflammatory cytokines, such as interleukin-6 (IL-6), many efforts have been devoted to identifying factors that could inhibit the IL-6-induced MMP-9/2 expression. Up to now, several reports indicated that polyphenols from fruits and vegetables are among the major components of health promotion for their antioxidant properties and also for their anti-inflammatory and anti-cancer agents. Among plant derived polyphenols, lemon (Citrus limon) peel extract (LPE) shows anti-cancer properties in various cancer types. In our previous work, we demonstrated that LPE can reduce IL-6-induced migration/invasiveness and MMP-9/2 up-regulation in some gastric cancer cell lines. This study aims to exploit the anti-cancer properties of LPE using an in vitro system model of inflammation, consisting of IL-6-exposed human primary colon cancer cells. We first analyzed the effect of LPE on IL-6-induced cell migration and invasiveness by wound healing and Boyden chamber assay, respectively. The MMP-2 mRNA expression levels and gelatinolytic activity in the cell culture media were determined by q-PCR analysis and gelatin zymography, respectively, and finally, the effects of LPE on IL-6-induced JAK2/STAT3 signaling pathways have been investigated by Western blotting analysis. Our results show that LPE is able to inhibit the IL-6-dependent cell migration and invasiveness associated with the up-regulation of MMP-2 expression levels and that these effects are correlated to the STAT3 phosphorylation in human primary T88 and T93 colon cancer cells.

scholarly journals Mechanism of Pterostilbene-Induced Cell Death in HT-29 Colon Cancer Cells

Molecules ◽  
2022 ◽  
Vol 27 (2) ◽  
pp. 369
Author(s):  
Joanna Wawszczyk ◽  
Katarzyna Jesse ◽  
Sławomir Smolik ◽  
Małgorzata Kapral
Keyword(s):  
Colon Cancer ◽  
Cell Death ◽  
Cell Growth ◽  
Cancer Cells ◽  
Biological Activities ◽  
Therapeutic Option ◽  
Colon Cancer Cells ◽  
Human Colon Cancer ◽  
Inhibition Of Proliferation ◽  
Ht 29

Pterostilbene is a dietary phytochemical that has been found to possess several biological activities, such as antioxidant and anti-inflammatory. Recent studies have shown that it exhibits the hallmark characteristics of an anticancer agent. The aim of the study was to investigate the anticancer activity of pterostilbene against HT-29 human colon cancer cells, focusing on its influence on cell growth, differentiation, and the ability of this stilbene to induce cell death. To clarify the mechanism of pterostilbene activity against colon cancer cells, changes in the expression of several genes and proteins that are directly related to cell proliferation, signal transduction pathways, apoptosis, and autophagy were also evaluated. Cell growth and proliferation of cells exposed to pterostilbene (5–100 µM) were determined by SRB and BRDU assays. Flow cytometric analyses were used for cell cycle progression. Further molecular investigations were performed using quantitative real-time RT-PCR. The expression of the signaling proteins studied was determined by the ELISA method. The results revealed that pterostilbene inhibited proliferation and induced the death of HT-29 colon cancer cells. Pterostilbene, depending on concentration, caused inhibition of proliferation, G1 cell arrest, and/or triggered apoptosis in HT-29 cells. These effects were mediated by the down-regulation of the STAT3 and AKT kinase pathways. It may be concluded that pterostilbene could be considered as a potential therapeutic option in the treatment of colon cancer in the future.

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