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https://www.readbyqxmd.com/read/28346728/nubpl-a-novel-metastasis-related-gene-promotes-colorectal-carcinoma-cell-motility-by-inducing-emt
#1
Yuhui Wang, Nan Wu, Donglin Sun, Haiming Sun, Dandan Tong, Duo Liu, Bo Pang, Su Li, Jia Wei, Jialin Dai, Yang Liu, Jing Bai, Jingshu Geng, Songbin Fu, Yan Jin
NUBPL is an assembly factor for human mitochondrial complex I, which is the biggest member of mitochondrial respiratory chain. However, the relationship between NUBPL and carcinoma progression remains unknown. In this study, NUBPL was characterized for its role in colorectal cancer (CRC) and the underlying molecular mechanisms. Data (n=197) from Oncomine database revealed that mRNA levels of NUBPL were remarkably overexpressed in CRC tissues compared with normal tissues. In addition, immunohistochemical analysis of 75 pairs of CRC and nontumorous tissues demonstrated that expression level of NUBPL was significantly higher in CRC tissues, and its expression level was positively associated with lymph node metastasis (P=0...
March 27, 2017: Cancer Science
https://www.readbyqxmd.com/read/28342898/temperature-induces-significant-changes-in-both-glycolytic-reserve-and-mitochondrial-spare-respiratory-capacity-in-colorectal-cancer-cell-lines
#2
Mihail I Mitov, Jennifer W Harris, Michael C Alstott, Yekaterina Y Zaytseva, B Mark Evers, D Allan Butterfield
Thermotherapy, as a method of treating cancer, has recently attracted considerable attention from basic and clinical investigators. A number of studies and clinical trials have shown that thermotherapy can be successfully used as a therapeutic approach for various cancers. However, the effects of temperature on cancer bioenergetics have not been studied in detail with a real time, in a microplate, label-free detection approach. This study investigate how changes in temperature affect the bioenergetics characteristics (mitochondrial function and glycolysis) of three colorectal cancer (CRC) cell lines utilizing the Seahorse XF96 technology...
March 22, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28333654/cytokine-changes-in-gastric-and-colonic-epithelial-cell-in-response-to-planta-ovata-extract
#3
Javed Yakoob, Wasim Jafri, Malik Hassan Mehmood, Zaigham Abbas, Kanwal Tariq
Background Psyllium (Planta ovata, Ispaghul) seed and husk are used for treatment of altered bowel habit, i. e. constipation and diarrhea. We studied the effect of Ispaghul extract on secretion of interleukin-1 beta (IL-1β) by AGS (ATCC CRL 1739) and SW480 (ATCC CCL-227) epithelial cell lines and determined whether Ispaghul extract has an effect on IL-1β secretion by Helicobacter pylori (H. pylori)-stimulated AGS cell and Escherichia coli K-12 (E. coli K-12)-stimulated SW480 cells in vitro. Methods The AGS cells and SW480 cells were pretreated with Ispaghul extract in concentrations, i...
March 22, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28323210/the-protective-activity-of-mesothelial-cells-against-peritoneal-growth-of-gastrointestinal-tumors-the-role-of-soluble-icam-1
#4
Justyna Mikuła-Pietrasik, Paweł Uruski, Małgorzata Kucińska, Andrzej Tykarski, Krzysztof Książek
In this project we examined how the presence of human peritoneal mesothelial cells (HPMCs) modifies (supports or inhibits) colorectal and pancreatic cancer cell progression in mice peritoneal cavity. Experiments were performed using primary, omentum-derived HPMCs, commercially available colorectal (SW-480) and pancreatic (PSN-1) cancer cells, and immunocompromised SCID mice. Tumor growth within the peritoneal cavity was monitored using bioluminescence. Adhesion of the cancer cells to HPMCs was examined using a fluorescence-based method, while the incidence of apoptosis was quantified using flow cytometry...
March 18, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28322462/stat1-inhibits-mir-181a-expression-to-suppress-colorectal-cancer-cell-proliferation-through-pten-akt
#5
Xingwen Zhang, Xiang Li, Fengbo Tan, Nanhui Yu, Haiping Pei
Signal transducers and activators of transcription 1 (STAT1) exhibits tumor-suppressor properties by inhibiting oncogenic pathways and promoting tumor immunosurveillance. MicroRNAs, a group of non-coding endogenous ones, may regulate gene expression and plays specific roles in tumorigenesis. Recently, miR-181a has been reported to be associated with poor prognosis of colorectal cancer (CRC). Using human colorectal cancer cell lines, we demonstrated that STAT1 suppresses both LoVo and SW480 cell growth by down-regulating miR-181a...
March 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28321792/synthesis-and-cytotoxicity-evaluation-of-tropinone-derivatives
#6
Xiu-Juan Yin, Chang-An Geng, Xing-Long Chen, Chang-Li Sun, Tong-Hua Yang, Tian-Ze Li, Jun Zhou, Xue-Mei Zhang, Ji-Jun Chen
Sixteen tropinone derivatives were prepared, and their antitumor activities against five human cancer cells (HL-60, A-549, SMMC-7721, MCF-7 and SW480) were evaluated with MTS [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxy methoxyphenyl)-2-(4-sulfopheny)-2H-tetrazolium] assay. Most of the derivatives exhibited better activities compared with tropinone at the concentration of 40 μM. Particularly, derivative 6 showed significant activities with IC50 values of 3.39, 13.59, 6.65, 13.09 and 12.38 μM respectively against HL-60, A-549, SMMC-7721, MCF-7 and SW480 cells, which suggested more potent activities than that of cis-dichlorodiamineplatinum (DDP)...
March 20, 2017: Natural Products and Bioprospecting
https://www.readbyqxmd.com/read/28320975/cytotoxic-steroids-from-the-vietnamese-soft-coral-sinularia-leptoclados
#7
Ninh Thi Ngoc, Tran Thi Hong Hanh, Nguyen Van Thanh, Do Thi Thao, Nguyen Xuan Cuong, Nguyen Hoai Nam, Do Cong Thung, Phan Van Kiem, Chau Van Minh
Fifteen steroids, including two new compounds, leptosteroid (1) and 5,6β-epoxygorgosterol (2), were isolated and structurally elucidated from the Vietnamese soft coral Sinularia leptoclados. Their cytotoxic effect against a panel of eight human cancer cell lines was evaluated using sulforhodamine B (SRB) method. Significant cytotoxicity against hepatoma cancer (HepG2, IC50 = 21.13±0.70 µM) and colon adenocarcinoma (SW480, IC50 = 28.65±1.53 µM) cell lines were observed for 1 and against acute leukemia (HL-60, IC50 = 20...
March 18, 2017: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28320104/sulfatase-2-promotes-the-growth-and-metastasis-of-colorectal-cancer-by-activating-akt-and-erk1-2-pathways
#8
Youmao Tao, Tao Han, Tao Zhang, Caixia Sun
The molecular mechanisms underlying the growth and metastasis of colorectal cancer (CRC) remain largely unknown. Sulfatase-2 (SULF2) was found to play critical roles in human cancers. Recent study reported that SULF1/2 overexpression resulted in increased viability and proliferation, and augmented cell migration in CRC cells. However, the expression of SULF2 and its underlying molecular mechanisms in CRC remain unknown. In this study, we found that the expressions of SULF2 in CRC tissues and cell lines were significantly increased compared to control groups...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28315202/validation-of-bevacizumab-therapy-effect-on-colon-cancer-subtypes-by-using-whole-body-imaging-in-mice
#9
Ivan Vuletic, Kedi Zhou, Hui Li, Huichen Bai, Xiangxi Meng, Sihao Zhu, Yichen Ding, Jun Li, Hongfang Sun, Qiushi Ren
PURPOSE: Preclinical imaging offers a useful tool for monitoring cancer biological behavior and therapy in vivo without the necessity of animal surgery. The following paper describes our examination of tumor progress and anti-angiogenic therapy with Bevacizumab on colon cancer subtypes (SW480 and SW620) by using different non-invasive real-time in vivo imaging techniques. PROCEDURES: Color Doppler ultrasound imaging (CDUI) was used to observe the formation of new blood vessels; a homemade fluorescence reflectance imaging (FRI) apparatus was mainly used to test the difference in VEGFR2 expression between the tumor subtypes...
March 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28314989/inhibition-of-got1-sensitizes-colorectal-cancer-cells-to-5-fluorouracil
#10
Chengyu Hong, Jian Zheng, Xiaoling Li
PURPOSE: Almost all colorectal cancer (CRC) cell lines are known to overexpress aspartate aminotransferase (GOT1), which potentially regulates the intracellular levels of reactive oxygen species (ROS) via the production of NADPH, and supports tumor growth. In our study, the role of GOT1 in the anticancer efficacy of 5-fluorouracil (5-FU) was examined. METHODS: HCT116, SW480, and HT-29 cells were transfected with lentiviral vectors expressing short hairpin RNA (shRNA) against GOT1...
March 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28302086/extracellular-hsp90-and-tgf%C3%AE-regulate-adhesion-migration-and-anchorage-independent-growth-in-a-paired-colon-cancer-cell-line-model
#11
Jo-Anne de la Mare, Tamarin Jurgens, Adrienne L Edkins
BACKGROUND: Tumour metastasis remains the major cause of death in cancer patients and, to date, the mechanism and signalling pathways governing this process are not completely understood. The TGF-β pathway is the most commonly mutated pathway in cancer, however its role in cancer progression is controversial as it can function as both a promoter and a suppressor of metastasis. Although previous studies have suggested a role for the molecular chaperone Hsp90 in regulating the TGF-β pathway, the level at which this occurs as well as the consequences in terms of colon cancer metastasis are unknown...
March 16, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28300658/effect-of-particle-size-on-the-biodistribution-toxicity-and-efficacy-of-drug-loaded-polymeric-nanoparticles-in-chemoradiotherapy
#12
Joseph M Caster, Stephanie K Yu, Artish N Patel, Nicole J Newman, Zachary J Lee, Samuel B Warner, Kyle T Wagner, Kyle C Roche, Xi Tian, Yuanzeng Min, Andrew Z Wang
Nanoparticle (NP) therapeutics can improve the therapeutic index of chemoradiotherapy (CRT). However, the effect of NP physical properties, such particle size, on CRT is unknown. To address this, we examined the effects of NP size on biodistribution, efficacy and toxicity in CRT. PEG-PLGA NPs (50, 100, 150nm mean diameters) encapsulating wotrmannin (wtmn) or KU50019 were formulated. These NP formulations were potent radiosensitizers in vitro in HT29, SW480, and lovo rectal cancer lines. In vivo, the smallest particles avoided hepatic and splenic accumulation while more homogeneously penetrating tumor xenografts than larger particles...
March 11, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28293146/rs35301225-polymorphism-in-mir-34a-promotes-development-of-human-colon-cancer-by-deregulation-of-3-utr-in-e2f1-in-chinese-population
#13
Haiqiang Jiang, Fengyuan Ge, Beina Hu, Lamei Wu, Huijian Yang, Huiyun Wang
BACKGROUND: Previous reports have revealed that down-regulation of miR-34a expression can promote colorectal cancer (CRC) cell growth by targeting cell cycle-related transcriptional factor E2F1. To date, the function of the single nucleotide polymorphism (SNP) located in the mature region of miR-34a has not been investigated. METHODS: We performed a case-control study including 685 CRC patients and 618 cancer-free controls. Genotyping, real-time PCR assay, cell transfection, and the dual luciferase reporter assay were used in our study...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28280361/microrna-194-modulates-epithelial-mesenchymal-transition-in-human-colorectal-cancer-metastasis
#14
Hong-Ke Cai, Xi Chen, Yun-Hao Tang, Yong-Chuan Deng
MicroRNAs (miRNAs), as key regulators of gene expression, are closely related to tumor occurrence and progression. MiR-194 has been proved as a tumor regulatory factor in various cancers; however, the biological function and mechanism of action in colorectal cancer (CRC) have not been well explored. In the present study, we found that miR-194 expression is upregulated in CRC clinical specimens, while overexpression of miR-194 promotes cell migration and invasion in CRC cell lines. Besides, miR-194 significantly influenced the epithelial-mesenchymal transition (EMT) markers by downregulating E-cadherin expression (P<0...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28278686/two-new-lignans-from-saururus-chinensis
#15
Cuibai Li, Ningxin Li, Jiarui Yue, Qishi Song, Qingfei Fan
Two new lignans, (Z)-14-bis(3',4'-dimethoxyphenyl)-2,3-dimethylbut-2-ene-1,4-dione (1), threo-2-methyl-3-oxo-1-(3',4',5'-trimethoxyphenyl)butyl-3″,4″-dimethoxybenzoate (2), together with 15 known derivatives (3-17) were isolated from Saururus chinensis. Their structures were determined on the basis of spectral data, including 1D and 2D NMR experiments and HREIMS spectra. The antitumour activity was screened by MTT assay, compounds 1, 2, 3, 5, 9-11 and 13-15 showed no cytotoxic activity against HL-60, SMMC-7721, A549, MCF-7 and SW480 cell lines...
February 6, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28274630/synthesis-and-cytotoxic-activity-of-novel-tetrahydrobenzodifuran-imidazolium-salt-derivatives
#16
Chao-Bo Zhang, Yang Liu, Zheng-Fen Liu, Sheng-Zu Duan, Min-Yan Li, Wen Chen, Yan Li, Hong-Bin Zhang, Xiao-Dong Yang
The synthesis of a series of novel 4-substituted 2,3,6,7-tetrahydrobenzo [1,2-b;4,5-b']difuran-1H-imidazolium salts is presented. The biological properties of the compounds were evaluated in vitro against a panel of human tumor cell lines. Results suggest that the 5,6-dimethyl-benzimidazole or 2-methyl-benzimidazole ring, and substitution of the imidazolyl-3-position with a 2-naphthylmethyl substituent or 2-naphthylacyl substituent, were important to the cytotoxic activity. Notably, 3-(2-Naphthylmethyl)-1-((2,3,6,7-tetrahydrobenzo[1,2-b;4,5-b']difuran-4-yl)methyl)-1H-5,6-dimethyl-benzimidazol-3-ium bromide (42) was found to be the most potent derivative against five human tumor cell lines with IC50 values of 1...
February 24, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28270078/a-preliminary-study-of-the-action-of-virtosomes-from-non-dividing-cells-on-tumour-cell-replication-in-vitro-and-in-vivo
#17
Mariano Garcia-Arranz, Damian Garcia-Olmo, Luz Vega-Clemente, Maurice Stroun
BACKGROUND: A DNA-RNA-lipoprotein complex, termed a virtosome, is released spontaneously from healthy human, other mammalian, avian, amphibian and plant cells in a regulated and energy-dependent manner. Studies on human and mouse lymphocytes, hepatocytes, NIH 3T3 cells and mouse tumour cell lines have shown that virtosomes may be acting as inter-cellular messengers. In particular, virtosomes from non-dividing cells blocked 3H-thymidine incorporation into DNA in tumour cell lines. OBJECTIVE: Study of the effect of virtosomes on tumors &quot;in vivo&quot; and &quot;in vitro&quot; Methods and Results...
February 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28264628/hdac-inhibitors-show-differential-epigenetic-regulation-and-cell-survival-strategies-on-p53-mutant-colon-cancer-cells
#18
Mahalakshmi R, Husayn Ahmed P, Vijayalakshmi Mahadevan
Besides inactivating tumour suppressor activity in cells, mutations in p53 confer significant oncogenic functions and promote metastasis and resistance to anti cancer therapy. A variety of therapies involving genetic and epigenetic signalling events regulate tumorogenesis and progression in such cases. Pharmacological interventions with HDAC inhibitors have shown promise in therapy. This work explores the changes in efficacy of the four HDAC inhibitors SAHA, MS-275, valproic acid and sodium butyrate on a panel of colon cancer cell lines - HCT116 (p53 wt), HCT116 p53-/-, HT29 and SW480 (with mutations in p53)...
March 6, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28260923/decrease-of-mir-622-expression-suppresses-migration-and-invasion-by-targeting-regulation-of-dyrk2-in-colorectal-cancer-cells
#19
Yong Wang, Jie Sun, Xilin Wei, Lan Luan, Xiandong Zeng, Cuifang Wang, Wei Zhao
BACKGROUND: More and more evidence indicates that microRNAs are present and involved in many tumor-related diseases. The function of microRNA-622 (miR-622) in colorectal cancer (CRC) remains controversial. Dual specificity tyrosine phosphorylation-regulated kinase 2 (DYRK2) has been reported as a tumor suppressor gene in different cancers. The detailed regulation mechanism of DYRK2 in CRC remains unclear. METHODS: miR-622 and DYRK2 expression levels were detected at tissue and cellular level respectively by using real time polymerase chain reaction (PCR), Western blot, and immunohistochemical staining...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28260110/inhibitory-effect-of-emodin-on-fatty-acid-synthase-colon-cancer-proliferation-and-apoptosis
#20
Kyung Ha Lee, Myung Sun Lee, Eun Young Cha, Ji Young Sul, Jin Sun Lee, Jin Su Kim, Jun Beom Park, Ji Yeon Kim
Fatty acid synthase (FASN) is a key anabolic enzyme for de novo fatty acid synthesis, which is important in the development of colon carcinoma. The high expression of FASN is considered a promising molecular target for colon cancer therapy. Emodin, a naturally occurring anthraquinone, exhibits an anticancer effect in various types of human cancer, including colon cancer; however, the molecular mechanisms remain to be fully elucidated. Cell viability was evaluated using a Cell Counting Kit‑8 assay. The apoptosis rate of cells was quantified via flow cytometry following Annexin V/propidium iodide staining...
April 2017: Molecular Medicine Reports
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