scholarly journals Inhibition of Histone Deacetylase Activity Promotes Invasion of Human Cancer Cells through Activation of Urokinase Plasminogen Activator

2007 ◽  
Vol 282 (49) ◽  
pp. 35594-35603 ◽  
Author(s):  
Sai Murali Krishna Pulukuri ◽  
Bharathi Gorantla ◽  
Jasti S. Rao
Keyword(s):  
Gene Expression ◽  
Cancer Cells ◽  
Plasminogen Activator ◽  
Histone Deacetylase ◽  
Cancer Cell ◽  
Cell Invasion ◽  
Human Cancer ◽  
Hdac Inhibitors ◽  
Cancer Cell Invasion ◽  
Human Cancer Cells

Histone acetylation plays an important role in chromatin remodeling and gene expression. The molecular mechanisms involved in differential regulation of urokinase plasminogen activator (uPA) gene expression are not fully understood. In this study, we investigated whether histone deacetylation was involved in repression of uPA expression in human cancer cells. Induction of uPA expression by histone deacetylase (HDAC) inhibitors trichostatin A (TSA), sodium butyrate, and scriptaid was observed in all three different types of human cancer cells examined. Chromatin immunoprecipitation assays showed that the induction of uPA expression by TSA was accompanied by a remarkable increase of acetylation of histones H3 and H4, which are associated with the uPA promoter region in human cancer cells. These results were further substantiated by the findings of a restriction enzyme accessibility assay and TSA-stimulated uPA promoter activity through the inhibition of HDAC activity. In vitro Matrigel invasion assays showed that induction of uPA expression by HDAC inhibitors in human cancer cells resulted in a significant increase of cancer cell invasion. Furthermore, HDAC1 knockdown by small interference RNA stimulated uPA expression and cancer cell invasion. In conclusion, this study demonstrates the important role of histone modifications in regulating uPA gene expression and raises a possibility that the use of HDAC inhibitors in patients as cancer therapy may paradoxically establish metastasis through up-regulation or reactivation of uPA.

scholarly journals GATA6 Promotes Colon Cancer Cell Invasion by Regulating Urokinase Plasminogen Activator Gene Expression

Neoplasia ◽  
2010 ◽  
Vol 12 (11) ◽  
pp. 856-IN1 ◽  
Author(s):  
Narasimhaswamy S Belaguli ◽  
Muhammad Aftab ◽  
Mohammed Rigi ◽  
Mao Zhang ◽  
Daniel Albo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Colon Cancer ◽  
Plasminogen Activator ◽  
Cancer Cell ◽  
Cell Invasion ◽  
Urokinase Plasminogen Activator ◽  
Colon Cancer Cell ◽  
Cancer Cell Invasion

Histone deacetylase inhibitor prodrugs in nanoparticle vector enhanced gene expression in human cancer cells

2009 ◽  
Vol 44 (11) ◽  
pp. 4603-4610 ◽  
Author(s):  
Yuta Ishii ◽  
Yoshiyuki Hattori ◽  
Toshiharu Yamada ◽  
Shinichi Uesato ◽  
Yoshie Maitani ◽  
...  
Keyword(s):  
Gene Expression ◽  
Cancer Cells ◽  
Histone Deacetylase ◽  
Histone Deacetylase Inhibitor ◽  
Human Cancer ◽  
Human Cancer Cells ◽  
Deacetylase Inhibitor

scholarly journals The Potential of 9,10-Anthraquinone in Inhibiting Human Cancer Cells Growth

2021 ◽  
Vol 15 (1) ◽  
pp. 19
Author(s):  
Irmanida Batubara ◽  
Arif Rakhman Hakim ◽  
Silmi Mariya ◽  
Suminar Setiati Achmadi ◽  
Valentina Sokoastri Valentina Sokoastri ◽  
...  
Keyword(s):  
Gene Expression ◽  
Cell Growth ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Hela Cells ◽  
Human Cancer ◽  
Cancer Cell Growth ◽  
Human Cancer Cells ◽  
Hct 116 ◽  
Mcf 7

Background: 9,10-Anthraquinone (9,10-AQ) is a contaminant on some agricultural products and considered as carcinogenic based on EU Regulation No. 1146/2014. Except for little evidence on experimental rats, there is no strong proof regarding the carcinogenicity in humans. Therefore, it is essential to find a safe dose of this compound since the difference in 9,10-AQ levels will affect cancer cell growth. This research aims to find the 9,10-AQ concentration that does not proliferate the human cancer cells under in vitro study.Methods: In determining the 9,10-AQ concentration that does not proliferate the cancer cells growth, 0.01 to 500 mg/L 9,10-AQ was directly tested on four human cancer cells (colorectal carcinoma HCT 116, colon adenocarcinoma WiDr, breast cancer MCF-7, and cervical cancer HeLa), and the viability of the cells was counted via (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) assay. In the gene expression level, the effects on a selected cancer cell line were determined by qRT-PCR against BAX, BCL-2, PCNA, and P53.Results: The result indicates that 9,10-AQ up to 500 mg/L concentration does not proliferate the cell’s growth but instead inhibits those four cancer cells’ growths. The concentration of 9,10-AQ that inhibits 50% the cancer cells growth (IC50) value was 321.8 mg/L (1.55 mM) against HCT 116 and above 500 mg/L (above 2.40 mM) against WiDr, MCF-7, and HeLa. The 9,10-AQ at 500 mg/L (or 2.40 mM) increases BAX expression and acts as an apoptotic agent on HeLa cells.Conclusions: The investigation has shown that 9,10-AQ up to 500 mg/L concentration does not proliferate the cancer cell growth; instead, it inhibits the HCT 116 and HeLa cells growth. We have preliminary evidence regarding the apoptotic mechanism of 9,10-AQ by increasing BAX gene expression on HeLa cells.

scholarly journals CC Chemokine Ligand 7 Derived from Cancer-Stimulated Macrophages Promotes Ovarian Cancer Cell Invasion

Cancers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 2745
Author(s):  
Miran Jeong ◽  
Yi-Yue Wang ◽  
Ju-Yeon Choi ◽  
Myong-Cheol Lim ◽  
Jung-Hye Choi
Keyword(s):  
Ovarian Cancer ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Cell Invasion ◽  
Ovarian Cancer Cell ◽  
Ovarian Cancer Cells ◽  
Human Ovarian Cancer ◽  
Cancer Cell Invasion ◽  
Cc Chemokine ◽  
Chemokine Ligand

In the tumor microenvironment, macrophages have been suggested to be stimulated by tumor cells, becoming tumor-associated macrophages that promote cancer development and progression. We examined the effect of these macrophages on human ovarian cancer cell invasion and found that conditioned medium of macrophages stimulated by ovarian cancer cells (OC-MQs) significantly increased cell invasion. CC chemokine ligand 7 (CCL7) expression and production were significantly higher in OC-MQs than in the control macrophages. Peritoneal macrophages from patients with ovarian cancer showed higher CCL7 expression levels than those from healthy controls. Inhibition of CCL7 using siRNA and neutralizing antibodies reduced the OC-MQ-CM-induced ovarian cancer cell invasion. CC chemokine receptor 3 (CCR3) was highly expressed in human ovarian cancer cells, and a specific inhibitor of this receptor reduced the OC-MQ-CM-induced invasion. Specific signaling and transcription factors were associated with enhanced CCL7 expression in OC-MQs. CCL7-induced invasion required the expression of matrix metalloproteinase 9 via activation of extracellular signal-related kinase signaling in human ovarian cancer cells. These data suggest that tumor-associated macrophages can affect human ovarian cancer metastasis via the CCL7/CCR3 axis.

scholarly journals Secretoglobin 3A2 eliminates human cancer cells through pyroptosis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Shigetoshi Yokoyama ◽  
Shun Nakayama ◽  
Lei Xu ◽  
Aprile L. Pilon ◽  
Shioko Kimura
Keyword(s):  
Cancer Cells ◽  
Cell Lines ◽  
Cancer Cell ◽  
Human Cancer ◽  
Cancer Cell Lines ◽  
Innate Immune ◽  
Innate Immune Cells ◽  
Lung Cancer Cell ◽  
Small Cell Lung ◽  
Human Cancer Cells

AbstractNon-canonical inflammasome activation that recognizes intracellular lipopolysaccharide (LPS) causes pyroptosis, the inflammatory death of innate immune cells. The role of pyroptosis in innate immune cells is to rapidly eliminate pathogen-infected cells and limit the replication niche in the host body. Whether this rapid cell elimination process of pyroptosis plays a role in elimination of cancer cells is largely unknown. Our earlier study demonstrated that a multi-functional secreted protein, secretoglobin (SCGB) 3A2, chaperones LPS to cytosol, and activates caspase-11 and the non-canonical inflammasome pathway, leading to pyroptosis. Here we show that SCGB3A2 exhibits marked anti-cancer activity against 5 out of 11 of human non-small cell lung cancer cell lines in mouse xenographs, while no effect was observed in 6 of 6 small cell lung cancer cell lines examined. All SCGB3A2-LPS-sensitive cells express syndecan 1 (SDC1), a SCGB3A2 cell surface receptor, and caspase-4 (CASP4), a critical component of the non-canonical inflammasome pathway. Two epithelial-derived colon cancer cell lines expressing SDC1 and CASP4 were also susceptible to SCGB3A2-LPS treatment. TCGA analysis revealed that lung adenocarcinoma patients with higher SCGB3A2 mRNA levels exhibited better survival. These data suggest that SCGB3A2 uses the machinery of pyroptosis for the elimination of human cancer cells via the non-canonical inflammasome pathway, and that SCGB3A2 may serve as a novel therapeutic to treat cancer, perhaps in combination with immuno and/or targeted therapies.

MATHEMATICAL MODELLING OF CANCER CELL INVASION OF TISSUE: THE ROLE OF THE UROKINASE PLASMINOGEN ACTIVATION SYSTEM

2005 ◽  
Vol 15 (11) ◽  
pp. 1685-1734 ◽  
Author(s):  
M. A. J. CHAPLAIN ◽  
G. LOLAS
Keyword(s):  
Cancer Cells ◽  
Cancer Cell ◽  
Cell Invasion ◽  
The Body ◽  
Plasminogen Activation ◽  
Cancer Cell Invasion ◽  
Plasminogen Activation System ◽  
Activation System ◽  
Spatio Temporal

The growth of solid tumours proceeds through two distinct phases: the avascular and the vascular phase. It is during the latter stage that the insidious process of cancer invasion of peritumoral tissue can and does take place. Vascular tumours grow rapidly allowing the cancer cells to establish a new colony in distant organs, a process that is known as metastasis. The progression from a single, primary tumour to multiple tumours in distant sites throughout the body is known as the metastatic cascade. This is a multistep process that first involves the over-expression by the cancer cells of proteolytic enzyme activity, such as the urokinase-type plasminogen activator (uPA) and matrix metalloproteinases (MMPs). uPA itself initiates the activation of an enzymatic cascade that primarily involves the activation of plasminogen and subsequently its matrix degrading protein plasmin. Degradation of the matrix then enables the cancer cells to migrate through the tissue and subsequently to spread to secondary sites in the body. In this paper we consider a mathematical model of cancer cell invasion of tissue (extracellular matrix) which focuses on the role of the plasminogen activation system. The model consists of a system of reaction-diffusion-taxis partial differential equations describing the interactions between cancer cells, urokinase plasminogen activator (uPA), uPA inhibitors, plasmin and the host tissue. The focus of the modelling is on the spatio-temporal dynamics of the uPA system and how this influences the migratory properties of the cancer cells through random motility, chemotaxis and haptotaxis. The results obtained from numerical computations carried out on the model equations produce rich, dynamic heterogeneous spatio-temporal solutions and demonstrate the ability of rather simple models to produce complicated dynamics, all of which are associated with tumour heterogeneity and cancer cell progression and invasion.

Tissue resident stem cells produce CCL5 under the influence of cancer cells and thereby promote breast cancer cell invasion

2009 ◽  
Vol 284 (1) ◽  
pp. 80-85 ◽  
Author(s):  
Severin Pinilla ◽  
Eckhard Alt ◽  
F.J. Abdul Khalek ◽  
Constantin Jotzu ◽  
Fabian Muehlberg ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Stem Cells ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Breast Cancer Cell ◽  
Cell Invasion ◽  
Cancer Cell Invasion ◽  
Breast Cancer Cell Invasion ◽  
Resident Stem Cells ◽  
Promote Breast Cancer

scholarly journals Chimeric antigen receptors that trigger phagocytosis

eLife ◽  
2018 ◽  
Vol 7 ◽  
Author(s):  
Meghan A Morrissey ◽  
Adam P Williamson ◽  
Adriana M Steinbach ◽  
Edward W Roberts ◽  
Nadja Kern ◽  
...  
Keyword(s):  
Cancer Cells ◽  
Cancer Cell ◽  
Immune Cell ◽  
Human Cancer ◽  
Antibody Fragment ◽  
Cell Number ◽  
Antigen Receptors ◽  
Chimeric Antigen Receptors ◽  
Cell Therapies ◽  
Human Cancer Cells

Chimeric antigen receptors (CARs) are synthetic receptors that reprogram T cells to kill cancer. The success of CAR-T cell therapies highlights the promise of programmed immunity and suggests that applying CAR strategies to other immune cell lineages may be beneficial. Here, we engineered a family of Chimeric Antigen Receptors for Phagocytosis (CAR-Ps) that direct macrophages to engulf specific targets, including cancer cells. CAR-Ps consist of an extracellular antibody fragment, which can be modified to direct CAR-P activity towards specific antigens. By screening a panel of engulfment receptor intracellular domains, we found that the cytosolic domains from Megf10 and FcRɣ robustly triggered engulfment independently of their native extracellular domain. We show that CAR-Ps drive specific engulfment of antigen-coated synthetic particles and whole human cancer cells. Addition of a tandem PI3K recruitment domain increased cancer cell engulfment. Finally, we show that CAR-P expressing murine macrophages reduce cancer cell number in co-culture by over 40%.

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