scholarly journals Hepatic Carcinoma—Associated Fibroblasts Promote an Adaptative Response in Colorectal Cancer Cells That Inhibit Proliferation and Apoptosis: Nonresistant Cells Die by Nonapoptotic Cell Death

Neoplasia ◽  
2011 ◽  
Vol 13 (10) ◽  
pp. 931-946 ◽  
Author(s):  
Mireia Berdiel-Acer ◽  
Monika E. Bohem ◽  
Adriana López-Doriga ◽  
August Vidal ◽  
Ramon Salazar ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Death ◽  
Cancer Cells ◽  
Hepatic Carcinoma ◽  
Proliferation And Apoptosis ◽  
Colorectal Cancer Cells ◽  
Nonapoptotic Cell Death ◽  
Carcinoma Associated Fibroblasts

scholarly journals Assessment of TRPV4 Channel and Its Role in Colorectal Cancer Cells

2019 ◽  
Vol 12 (2) ◽  
pp. 629-638
Author(s):  
N. N. Bahari ◽  
S. Y. N. Jamaludin ◽  
A. H. Jahidin ◽  
M. N. Zahary ◽  
A. B. Mohd Hilmi
Keyword(s):  
Colorectal Cancer ◽  
Cell Cycle ◽  
Cell Death ◽  
Cancer Cells ◽  
Human Colorectal Cancer ◽  
Expression Levels ◽  
Pharmacological Modulation ◽  
Colorectal Cancer Cells ◽  
Ht 29

The transient receptor potential vanilloid member 4 (TRPV4) is a non-selective calcium (Ca2+)-permeable channel which is widely expressed in different types of tissues including the lungs, liver, kidneys and salivary gland. TRPV4 has been shown to serve as a cellular sensor where it is involved in processes such as osmoregulation, cell volume regulation and thermoregulation. Emerging evidence suggests that TRPV4 also plays important roles in several aspects of cancer progression. Despite the reported roles of TRPV4 in several forms of cancers, the role of TRPV4 in human colorectal cancer remains largely unexplored. In the present study, we sought to establish the potential role of TRPV4 in colorectal cancer by assessing TRPV4 expression levels and investigating whether TRPV4 pharmacological modulation may alter cell proliferation, cell cycle and cell death in colorectal cancer cells. Quantitative real-time PCR analysis revealed that TRPV4 mRNA levels were significantly lower in HT-29 cells than normal colon CCD-18Co cells. However, TRPV4 mRNA was absent in HCT-116 cells. Pharmacological activation of TRPV4 with GSK1016790A significantly enhanced the proliferation of HT-29 cells while TRPV4 inhibition using RN 1734 decreased their proliferation. Increased proliferation in GSK1016790A-treated HT-29 cells was attenuated by co-treatment with RN 1734. Pharmacological modulation of TRPV4 had no effect on the cell cycle progression but promoted cell death in HT-29 cells. Taken together, these findings suggest differential TRPV4 expression levels in human colorectal cancer cells and that pharmacological modulation of TRPV4 produces distinct effects on the proliferation and induces cell death in HT-29 cells.

scholarly journals p53 Enhances Artemisia annua L. Polyphenols-Induced Cell Death Through Upregulation of p53-Dependent Targets and Cleavage of PARP1 and Lamin A/C in HCT116 Colorectal Cancer Cells

2020 ◽  
Vol 21 (23) ◽  
pp. 9315
Author(s):  
Eun Joo Jung ◽  
Won Sup Lee ◽  
Anjugam Paramanantham ◽  
Hye Jung Kim ◽  
Sung Chul Shin ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Death ◽  
Cancer Cells ◽  
Artemisia Annua ◽  
Flow Cytometric Analysis ◽  
Lamin A ◽  
Artemisia Annua L ◽  
Anticancer Effects ◽  
Colorectal Cancer Cells ◽  
Hct116 Cells

Plant-derived natural polyphenols exhibit anticancer activity without showing any noticeable toxicities to normal cells. The aim of this study was to investigate the role of p53 on the anticancer effect of polyphenols isolated from Korean Artemisia annua L. (pKAL) in HCT116 human colorectal cancer cells. We confirmed that pKAL induced reactive oxygen species (ROS) production, propidium iodide (PI) uptake, nuclear structure change, and acidic vesicles in a p53-independent manner in p53-null HCT116 cells through fluorescence microscopy analysis of DCF/PI-, DAPI-, and AO-stained cells. The pKAL-induced anticancer effects were found to be significantly higher in p53-wild HCT116 cells than in p53-null by hematoxylin staining, CCK-8 assay, Western blot, and flow cytometric analysis of annexin V/PI-stained cells. In addition, expression of ectopic p53 in p53-null cells was upregulated by pKAL in both the nucleus and cytoplasm, increasing pKAL-induced cell death. Moreover, Western bot analysis revealed that pKAL-induced cell death was associated with upregulation of p53-dependent targets such as p21, Bax and DR5 and cleavage of PARP1 and lamin A/C in p53-wild HCT116 cells, but not in p53-null. Taken together, these results indicate that p53 plays an important role in enhancing the anticancer effects of pKAL by upregulating p53 downstream targets and inducing intracellular cell death processes.

scholarly journals Sourcing the immune system to induce immunogenic cell death in Kras-colorectal cancer cells

2019 ◽  
Vol 121 (9) ◽  
pp. 768-775
Author(s):  
Mara Cirone ◽  
Lavinia Vittoria Lotti ◽  
Marisa Granato ◽  
Livia Di Renzo ◽  
Ida Biunno ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Death ◽  
Cancer Cells ◽  
Cell Activation ◽  
Cytotoxic T Cells ◽  
Single Agent ◽  
Atp Release ◽  
Immunogenic Cell Death ◽  
Dendritic Cell Activation ◽  
Colorectal Cancer Cells

Abstract Background Current approaches aimed at inducing immunogenic cell death (ICD) to incite an immune response against cancer neoantigens are based on the use of chemotherapeutics and other agents. Results are hampered by issues of efficacy, combinatorial approaches, dosing and toxicity. Here, we adopted a strategy based on the use of an immunomolecule that overcomes pharmachemical limitations. Methods Cytofluorometry, electron microscopy, RT-PCR, western blotting, apotome immunofluorescence, MLR and xenografts. Results We report that an ICD process can be activated without the use of pharmacological compounds. We show that in Kras-mut/TP53-mut colorectal cancer cells the 15 kDa βGBP cytokine, a T cell effector with onco-suppressor properties and a potential role in cancer immunosurveillance, induces key canonical events required for ICD induction. We document ER stress, autophagy that extends from cancer cells to the corresponding xenograft tumours, CRT cell surface shifting, ATP release and evidence of dendritic cell activation, a process required for priming cytotoxic T cells into a specific anticancer immunogenic response. Conclusions Our findings provide experimental evidence for a rationale to explore a strategy based on the use of an immunomolecule that as a single agent couples oncosuppression with the activation of procedures necessary for the induction of long term response to cancer.

scholarly journals A novel cell type-specific role of p38α in the control of autophagy and cell death in colorectal cancer cells

2006 ◽  
Vol 14 (4) ◽  
pp. 693-702 ◽  
Author(s):  
F Comes ◽  
A Matrone ◽  
P Lastella ◽  
B Nico ◽  
F C Susca ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Death ◽  
Cancer Cells ◽  
Specific Role ◽  
Cell Type ◽  
Colorectal Cancer Cells ◽  
Cell Type Specific

miR-203 Regulates Proliferation and Apoptosis of Colorectal Cancer Cells Through Targeting DJ-1

2020 ◽  
Vol 10 (3) ◽  
pp. 365-370
Author(s):  
Qiupeng Du ◽  
Na Du ◽  
Chenchen Zhu ◽  
Qingqing Shang ◽  
Haiyan Mao ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Proliferation ◽  
Cancer Cells ◽  
Cell Apoptosis ◽  
Akt Signaling ◽  
Pten Expression ◽  
Proliferation And Apoptosis ◽  
Colorectal Cancer Cells ◽  
Colorectal Cell ◽  
Sw480 Cells

Objective: To assess whether miR-203 regulates DJ-1 expression, affects colorectal cancer cells through PTEN-PI3K/AKT signaling. Methods: Colorectal cancer (CRC) tissues and adjacent tissues were collected followed by analysis of the level of miR-203, DJ-1 and PTEN. miR-203 and DJ-1 level was measured in HCT116, SW480 and normal colorectal cell NCM460. miR-203 mimic or miR-NC was transfected into HCT116 or SW480 cells followed by measuring the level of miR-203, DJ-1, PTEN, p-AKT as well as cell apoptosis and proliferation. Results: Compared with tumor adjacent tissues, tumor tissues showed significantly lower level of miR-203 and PTEN, and higher level of DJ-1. There is a targeted relationship between miR-203 and DJ-1. Compared with NCM460 cell, HCT116 and SW480 cells displayed significantly lower miR-203 level and higher DJ-1 expression. miR-203 mimic significantly reduced DJ-1 and p-AKT level, increased PTEN expression, cell apoptosis and inhibited cell proliferation. Conclusion: Lower miR-203 and higher DJ-1 level is found in CRC patients. Upregulation of miR-203 inhibits DJ-1 expression, increases PTEN expression, impairs PI3K/AKT signaling, inhibits CRC cell proliferation and promotes apoptosis.

scholarly journals Overaccumulation of p53-mediated autophagy protects against betulinic acid-induced apoptotic cell death in colorectal cancer cells

2017 ◽  
Vol 8 (10) ◽  
pp. e3087-e3087 ◽  
Author(s):  
Sen Wang ◽  
Kexin Wang ◽  
Chundong Zhang ◽  
Wanfeng Zhang ◽  
Qian Xu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Death ◽  
Cancer Cells ◽  
Betulinic Acid ◽  
Apoptotic Cell ◽  
Apoptotic Cell Death ◽  
Colorectal Cancer Cells
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