scholarly journals PSY-1, a Taxus chinensis var. mairei Extract, Inhibits Cancer Cell Metastasis by Interfering with MMPs

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Zao-qian Zheng ◽  
Ying-Ying Fu ◽  
Bo-Heng Li ◽  
Mei-Ling Zhang ◽  
Xiu-Li Yang ◽  
...  
Keyword(s):  
Cancer Cell ◽  
Cancer Metastasis ◽  
Cancer Cell Line ◽  
Water Soluble ◽  
Migration And Invasion ◽  
Common Disease ◽  
Taxus Chinensis ◽  
Cancer Treatments ◽  
Melanoma Cancer ◽  
Cell Metastasis

Cancer is the most common disease worldwide, with death often occurring as a result of metastasis. Thus, interfering with metastasis has been regarded as a promising strategy to improve the current cancer treatments. However, exploration and development of novel anti-metastatic agents remains a major challenge. Recent evidence indicated that a polysaccharide isolated from Taxus yunnanensis suppressed tumor cells proliferation. With the objective of seeking bioactive extracts, we had previously isolated, purified and characterized a complex, water-soluble polysaccharides, PSY-1, from the leaves of Taxus chinensis var. mairei, and identified its anti-neoplastic effects. In this study, we focused on the effects of PSY-1 on cancer metastasis and its mechanism(s). The results illustrated that PSY-1 effectively suppressed the migration and invasion ability of the melanoma cancer cell line B16-F10, caused down-regulation of MMP-2 and MMP-9, and that the NF-κB pathway was involved in the anti-metastatic effects imposed by PSY-1.

scholarly journals Caffeic Acid Phenethyl Ester Inhibits Oral Cancer Cell Metastasis by Regulating Matrix Metalloproteinase-2 and the Mitogen-Activated Protein Kinase Pathway

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Chih-Yu Peng ◽  
Hui-Wen Yang ◽  
Yin-Hung Chu ◽  
Yu-Chao Chang ◽  
Ming-Ju Hsieh ◽  
...  
Keyword(s):  
Oral Cancer ◽  
Matrix Metalloproteinase ◽  
Caffeic Acid ◽  
Cancer Cell ◽  
Cancer Metastasis ◽  
Caffeic Acid Phenethyl Ester ◽  
Matrix Metalloproteinase 2 ◽  
Migration And Invasion ◽  
Oral Cancer Cell ◽  
Cell Metastasis

Caffeic acid phenethyl ester (CAPE), an active component extracted from honeybee hives, exhibits anti-inflammatory and anticancer activities. However, the molecular mechanism by which CAPE affects oral cancer cell metastasis has yet to be elucidated. In this study, we investigated the potential mechanisms underlying the effects of CAPE on the invasive ability of SCC-9 oral cancer cells. Results showed that CAPE attenuated SCC-9 cell migration and invasion at noncytotoxic concentrations (0 μM to 40 μM). Western blot and gelatin zymography analysis findings further indicated that CAPE downregulated matrix metalloproteinase-2 (MMP-2) protein expression and inhibited its enzymatic activity. CAPE exerted its inhibitory effects on MMP-2 expression and activity by upregulating tissue inhibitor of metalloproteinase-2 (TIMP-2) and potently decreased migration by reducing focal adhesion kinase (FAK) phosphorylation and the activation of its downstream signaling molecules p38/MAPK and JNK. These data indicate that CAPE could potentially be used as a chemoagent to prevent oral cancer metastasis.

scholarly journals Erianthridin suppresses non-small-cell lung cancer cell metastasis through inhibition of Akt/mTOR/p70S6K signaling pathway

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Sutthaorn Pothongsrisit ◽  
Kuntarat Arunrungvichian ◽  
Yoshihiro Hayakawa ◽  
Boonchoo Sritularak ◽  
Supachoke Mangmool ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Cell Migration ◽  
Protein Kinase ◽  
Small Cell Lung Cancer ◽  
Cancer Metastasis ◽  
Small Cell ◽  
Migration And Invasion ◽  
Lung Cancer Cell ◽  
Small Cell Lung ◽  
Cell Metastasis

AbstractCancer metastasis is a major cause of the high mortality rate in lung cancer patients. The cytoskeletal rearrangement and degradation of extracellular matrix are required to facilitate cell migration and invasion and the suppression of these behaviors is an intriguing approach to minimize cancer metastasis. Even though Erianthridin (ETD), a phenolic compound isolated from the Thai orchid Dendrobium formosum exhibits various biological activities, the molecular mechanism of ETD for anti-cancer activity is unclear. In this study, we found that noncytotoxic concentrations of ETD (≤ 50 μM) were able to significantly inhibit cell migration and invasion via disruption of actin stress fibers and lamellipodia formation. The expression of matrix metalloproteinase-2 (MMP-2) and MMP-9 was markedly downregulated in a dose-dependent manner after ETD treatment. Mechanistic studies revealed that protein kinase B (Akt) and its downstream effectors mammalian target of rapamycin (mTOR) and p70 S6 kinase (p70S6K) were strongly attenuated. An in silico study further demonstrated that ETD binds to the protein kinase domain of Akt with both hydrogen bonding and van der Waals interactions. In addition, an in vivo tail vein injection metastasis study demonstrated a significant effect of ETD on the suppression of lung cancer cell metastasis. This study provides preclinical information regarding ETD, which exhibits promising antimetastatic activity against non-small-cell lung cancer through Akt/mTOR/p70S6K-induced actin reorganization and MMPs expression.

scholarly journals Pals1 prevents Rac1-dependent colorectal cancer cell metastasis by inhibiting Arf6

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Simona Mareike Lüttgenau ◽  
Christin Emming ◽  
Thomas Wagner ◽  
Julia Harms ◽  
Justine Guske ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Migration ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Scaffolding Protein ◽  
Migration And Invasion ◽  
Tight Junction Formation ◽  
Cell Metastasis ◽  
Colorectal Cancer Cells

AbstractLoss of apical-basal polarity and downregulation of cell-cell contacts is a critical step during the pathogenesis of cancer. Both processes are regulated by the scaffolding protein Pals1, however, it is unclear whether the expression of Pals1 is affected in cancer cells and whether Pals1 is implicated in the pathogenesis of the disease.Using mRNA expression data and immunostainings of cancer specimen, we show that Pals1 is frequently downregulated in colorectal cancer, correlating with poorer survival of patients. We further found that Pals1 prevents cancer cell metastasis by controlling Rac1-dependent cell migration through inhibition of Arf6, which is independent of the canonical binding partners of Pals1. Loss of Pals1 in colorectal cancer cells results in increased Arf6 and Rac1 activity, enhanced cell migration and invasion in vitro and increased metastasis of transplanted tumor cells in mice. Thus, our data reveal a new function of Pals1 as a key inhibitor of cell migration and metastasis of colorectal cancer cells. Notably, this new function is independent of the known role of Pals1 in tight junction formation and apical-basal polarity.

scholarly journals Cytotoxicity of Labruscol, a New Resveratrol Dimer Produced by Grapevine Cell Suspensions, on Human Skin Melanoma Cancer Cell Line HT-144

Molecules ◽  
2017 ◽  
Vol 22 (11) ◽  
pp. 1940 ◽  
Author(s):  
Laetitia Nivelle ◽  
Jane Hubert ◽  
Eric Courot ◽  
Nicolas Borie ◽  
Jean-Hugues Renault ◽  
...  
Keyword(s):  
Cell Line ◽  
Human Skin ◽  
Cancer Cell ◽  
Cancer Cell Line ◽  
Cell Suspensions ◽  
Skin Melanoma ◽  
Melanoma Cancer

scholarly journals METTL3-induced UCK2 m6A hypermethylation promotes melanoma cancer cell metastasis via the WNT/β-catenin pathway

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Hao Wu ◽  
Haochao Xu ◽  
Dongdong Jia ◽  
Tao Li ◽  
Liming Xia
Keyword(s):  
Cancer Cell ◽  
Melanoma Cancer ◽  
Cell Metastasis

scholarly journals 2, 3-Dihydro-3β-methoxy Withaferin-A Lacks Anti-Metastasis Potency: Bioinformatics and Experimental Evidences

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Anupama Chaudhary ◽  
Rajkumar S. Kalra ◽  
Vidhi Malik ◽  
Shashank P. Katiyar ◽  
Durai Sundar ◽  
...  
Keyword(s):  
Cell Migration ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Human Cancer ◽  
Effector Proteins ◽  
Withaferin A ◽  
Migration And Invasion ◽  
Cell Metastasis

AbstractWithaferin-A is a withanolide, predominantly present in Ashwagandha (Withania somnifera). It has been shown to possess anticancer activity in a variety of human cancer cells in vitro and in vivo. Molecular mechanism of such cytotoxicity has not yet been completely understood. Withaferin-A and Withanone were earlier shown to activate p53 tumor suppressor and oxidative stress pathways in cancer cells. 2,3-dihydro-3β-methoxy analogue of Withaferin-A (3βmWi-A) was shown to lack cytotoxicity and well tolerated at higher concentrations. It, on the other hand, protected normal cells against oxidative, chemical and UV stresses through induction of anti-stress and pro-survival signaling. We, in the present study, investigated the effect of Wi-A and 3βmWi-A on cell migration and metastasis signaling. Whereas Wi-A binds to vimentin and heterogeneous nuclear ribonucleoprotein K (hnRNP-K) with high efficacy and downregulates its effector proteins, MMPs and VEGF, involved in cancer cell metastasis, 3βmWi-A was ineffective. Consistently, Wi-A, and not 3βmWi-A, caused reduction in cytoskeleton proteins (Vimentin, N-Cadherin) and active protease (u-PA) that are essential for three key steps of cancer cell metastasis (EMT, increase in cell migration and invasion).

scholarly journals Hexokinase 2 Regulates Ovarian Cancer Cell Migration, Invasion and Stemness via FAK/ERK1/2/MMP9/NANOG/SOX9 Signaling Cascades

Cancers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 813 ◽  
Author(s):  
Michelle K. Y. Siu ◽  
Yu-Xin Jiang ◽  
Jing-Jing Wang ◽  
Thomas H. Y. Leung ◽  
Chae Young Han ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Cell Migration ◽  
Cancer Cell ◽  
Cancer Metastasis ◽  
Ovarian Cancer Cell ◽  
Lactate Production ◽  
Metabolic Reprogramming ◽  
Migration And Invasion ◽  
Hexokinase 2 ◽  
Cell Migration And Invasion

Metabolic reprogramming is a common phenomenon in cancers. Thus, glycolytic enzymes could be exploited to selectively target cancer cells in cancer therapy. Hexokinase 2 (HK2) converts glucose to glucose-6-phosphate, the first committed step in glucose metabolism. Here, we demonstrated that HK2 was overexpressed in ovarian cancer and displayed significantly higher expression in ascites and metastatic foci. HK2 expression was significantly associated with advanced stage and high-grade cancers, and was an independent prognostic factor. Functionally, knockdown of HK2 in ovarian cancer cell lines and ascites-derived tumor cells hindered lactate production, cell migration and invasion, and cell stemness properties, along with reduced FAK/ERK1/2 activation and metastasis- and stemness-related genes. 2-DG, a glycolysis inhibitor, retarded cell migration and invasion and reduced stemness properties. Inversely, overexpression of HK2 promoted cell migration and invasion through the FAK/ERK1/2/MMP9 pathway, and enhanced stemness properties via the FAK/ERK1/2/NANOG/SOX9 cascade. HK2 abrogation impeded in vivo tumor growth and dissemination. Notably, ovarian cancer-associated fibroblast-derived IL-6 contributed to its up-regulation. In conclusion, HK2, which is regulated by the tumor microenvironment, controls lactate production and contributes to ovarian cancer metastasis and stemness regulation via FAK/ERK1/2 signaling pathway-mediated MMP9/NANOG/SOX9 expression. HK2 could be a potential prognostic marker and therapeutic target for ovarian cancer.

Abstract LB-510: Longitudinal imaging of melanoma cancer cell metastasis in a preclinical model by bioluminescence, PET/CT, and MRI

2012 ◽  
Author(s):  
Pavan P. Adiseshaiah ◽  
Stephan T. Stern ◽  
Nimit L. Patel ◽  
Lilia V. Ileva ◽  
Joseph D. Kalen ◽  
...  
Keyword(s):  
Cancer Cell ◽  
Preclinical Model ◽  
Melanoma Cancer ◽  
Cell Metastasis ◽  
Pet Ct ◽  
Longitudinal Imaging ◽  
Ct And Mri

scholarly journals Molecular interaction and cellular studies on combination photodynamic therapy with rutoside for melanoma A375 cancer cells: an in vitro study

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Khatereh Khorsandi ◽  
Reza Hosseinzadeh ◽  
Elham Chamani
Keyword(s):  
Reactive Oxygen Species ◽  
Cell Cycle ◽  
Cell Death ◽  
Photodynamic Therapy ◽  
Cancer Cells ◽  
Cancer Cell ◽  
Cancer Cell Line ◽  
Human Melanoma ◽  
Oxygen Species ◽  
Melanoma Cancer

Abstract Background Melanoma as a type of skin cancer, is associated with a high mortality rate. Therefore, early diagnosis and efficient surgical treatment of this disease is very important. Photodynamic therapy (PDT) involves the activation of a photosensitizer by light at specific wavelength that interacts with oxygen and creates singlet oxygen molecules or reactive oxygen species (ROS), which can lead to tumor cell death. Furthermore, one of the main approches in the prevention and treatment of various cancers is plant compounds application. Phenolic compounds are essential class of natural antioxidants, which play crucial biological roles such as anticancer effects. It was previously suggested that flavonoid such as rutoside could acts as pro-oxidant or antioxidant. Hence, in this study, we aimed to investigate the effect of rutoside on the combination therapy with methylene blue (MB) assisted by photodynamic treatment (PDT) using red light source (660 nm; power density: 30 mW/cm2) on A375 human melanoma cancer cells. Methods For this purpose, the A375 human melanoma cancer cell lines were treated by MB-PDT and rutoside. Clonogenic cell survival, MTT assay, and cell death mechanisms were also determined after performing the treatment. Subsequently, after the rutoside treatment and photodynamic therapy (PDT), cell cycle and intracellular reactive oxygen species (ROS) generation were measured. Results The obtained results showed that, MB-PDT and rutoside had better cytotoxic and antiprolifrative effects on A375 melanoma cancer cells compared to each free drug, whereas the cytotoxic effect on HDF human dermal fibroblast cell was not significant. MB-PDT and rutoside combination induced apoptosis and cell cycle arrest in the human melanoma cancer cell line. Intracellular ROS increased in A375 cancer cell line after the treatment with MB-PDT and rutoside. Conclusion The results suggest that, MB-PDT and rutoside could be considered as novel approaches as the combination treatment of melanoma cancer.

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