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Jing Xiong, Wenqu Zhao, Yun Lin, Lihong Yao, Guohua Huang, Changhui Yu, Hangming Dong, Guanhua Xiao, Haijin Zhao, Shaoxi Cai
BACKGROUND: We have previously demonstrated that the receptor for advanced glycation end products (RAGE)/β-catenin axis plays a vital role in regulating airway inflammation and airway remodeling in a toluene diisocyanate (TDI)-induced murine asthma model. However, the exact mechanism of β-catenin activation remains unclear. Given that phosphorylation of the low-density lipoprotein receptor-related protein 6 (Lrp6) is a key step in mediating β-catenin stabilization in canonical wnt/β-catenin signaling, we explored the possible relationship between RAGE and Lrp6 in regulating β-catenin stabilization in TDI-induced asthma...
April 12, 2018: International Immunopharmacology
Magdalena C Wojciechowski, Daisy Y Shu, Frank J Lovicu
PURPOSE: This study aims to highlight some of the genes that are differentially regulated by ERK1/2-signaling in TGFβ-induced EMT in lens, and their potential contribution to this pathological process. MATERIALS AND METHODS: Rat lens epithelial explants were cultured with or without TGFβ over a 3-day-culture period to induce EMT, in the presence or absence of UO126 (ERK1/2-signaling inhibitor), both prior to TGFβ-treatment, or 24 or 48 hours after TGFβ-treatment...
April 13, 2018: Current Eye Research
Baozhu Zhang, Zhao Zhang, Lei Li, Yan-Ru Qin, Haibo Liu, Chen Jiang, Ting-Ting Zeng, Meng-Qing Li, Dan Xie, Yan Li, Xin-Yuan Guan, Ying-Hui Zhu
Beta-transducin repeat containing E3 ubiquitin protein ligase (BTRC) is crucial for the degradation of IκBα. Our previous transcriptome sequencing analysis revealed that tetraspanin 15 (TSPAN15) was significantly upregulated in clinical oesophageal squamous cell carcinoma (OSCC) tissues. Here, we show that high TSPAN15 expression in OSCC tissues is significantly associated with lymph node and distant metastasis, advanced clinical stage, and poor prognosis. Elevated TSPAN15 expression is, in part, caused by the reduction of miR-339-5p...
April 12, 2018: Nature Communications
Jing Xu, Junyao Yang, Agata Nyga, Mazdak Ehteramyan, Ana Moraga, Yuanhao Wu, Lingfang Zeng, Martin M Knight, Julia C Shelton
Histological assessments of synovial tissues from patients with failed CoCr alloy hip prostheses demonstrate extensive infiltration and accumulation of macrophages, often loaded with large quantities of particulate debris. The resulting adverse reaction to metal debris (ARMD) frequently leads to early joint revision. Inflammatory response starts with the recruitment of immune cells and requires the egress of macrophages from the inflamed site for resolution of the reaction. Metal ions (Co2+ and Cr3+ ) have been shown to stimulate the migration of T lymphocytes but their effects on macrophages motility are still poorly understood...
April 9, 2018: Acta Biomaterialia
Yanyan Wang, Yilin Wang, Zhenyu Zhang
BACKGROUND: Obesity has been linked to several types of cancers including ovarian cancer. Retinol binding protein 4 (RBP4) is an adipokine that drives the development of hyperinsulinemia and type II diabetes in obesity patients and animals. Previously, we have identified RBP4 as a serum marker for ovarian cancer. Here we further explored the consequence of RBP4 upregulation in ovarian cancer cells and its molecular mechanism. RESULTS: Our results show that RBP4 is overexpressed in ovarian cancer cells to the same extent as in adipose tissues...
April 11, 2018: Journal of Ovarian Research
Zhihua Gong, Junying Chen, Jia-Nan Cheng, Chengdu Sun, Qingzhu Jia, Xinwei Diao, Bo Zhu
BACKGROUND: The benefits of immune checkpoint inhibitors for first-line treatment in patients with lung adenocarcinoma harboring EGFR mutations are unclear. The effects of ICIs depend on the tumor microenvironment (TME). Differences in TME properties between mutant and wild-type EGFR have not been fully characterized. PATIENTS AND METHODS: We collected 105 surgically resected (50 EGFR mutated and 55 EGFR wild-type), treatment-naïve lung adenocarcinoma tissues with clinical data to investigate the landscape and compartmentalization of tumor-infiltrating immune cells with respect to EGFR status by immunohistochemistry...
March 17, 2018: Clinical Lung Cancer
Rui Yang, Li Han, Xiantie Zeng
The roles of matrix metalloproteinase (MMP)9 in the control of pressure ulcers (PU) after hip fracture as well as how the rs1056629 in MMP9 3'UTR compromises the interaction between MMP9 and miR‑491 were explored. Online miRNA database ( was utilized to explore gene polymorphism in MMP9 3'UTR that might break the interaction between MMP9 and miRNA. Luciferase assay was utilized to confirm the miRNA targeted MMP9. Real‑time PCR, western blot analysis and immunohistochemistry were carried out to understand the roles of MMP9 in PU as well as how rs1056629 in MMP9 3'UTR compromises the interaction between MMP9 and miR‑491...
March 28, 2018: Oncology Reports
Ai-Lei Wang, Yong Li, Qun Zhao, Li-Qiao Fan
Formononetin (Form), a phytoestrogen extracted from the roots of Astragalus membranaceus, is one of the fundamental herbs used in traditional Chinese medicine because of its protective effects against certain malignant tumors. However, its role in colon carcinoma cells and the underlying molecular mechanisms have not been completely elucidated. The present study aimed to demonstrate that Form significantly inhibited the proliferation and invasion of the colon carcinoma cell lines SW1116 and HCT116. Mechanistic studies have suggested that Form suppresses colon carcinoma cell growth by downregulating cell cycle‑associated protein (cyclin D1) expression and arresting the cell cycle at the G0‑G1 checkpoint...
April 5, 2018: Molecular Medicine Reports
Huijiang Zhou, Jiangfeng Xu, Shuai Wang, Jinfeng Peng
Cantharidin (CAN), a potent inhibitor of serine/threonine‑protein phosphatase 2A (PP2A), is widely used in clinical practice, particularly in the treatment of advanced cancer due to its specific action on these types of cancer. In the present study, the inhibitory effect of CAN was examined in two cholangiocarcinoma cell lines (QBC939 and Hucc‑t1). Following treatment with CAN, cell viability was effectively reduced in QBC939 and Hucc‑t1 cells and normal human intrahepatic biliary epithelial cells. However, a slight increase in reactive oxygen species levels in QBC939 cells treated with CAN was observed post‑treatment...
April 5, 2018: Molecular Medicine Reports
Nagaraja Haleagrahara, Kelly Hodgson, Socorro Miranda-Hernandez, Samuel Hughes, Anupama Bangra Kulur, Ketheesan Natkunum
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation of synovial tissues in joints, leading to progressive destruction of cartilage and joints. The disease-modifying anti-rheumatic drugs currently in use have side-effects. Thus, there is an urgent need for safe anti-inflammatory therapies for RA. This study aimed to evaluate the therapeutic effect of the flavonoid quercetin on arthritis in mice immunized with type II collagen (CII). An arthritis model was established in C57/BL6 mice by intradermal administration of chicken CII mixed with Freund's complete adjuvant...
April 3, 2018: Inflammopharmacology
Zhongchuan Wang, Rujia Li, Yongshan He, Shiyong Huang
Background: Secreted frizzled-related protein 1 (SFRP1) is a member of the SFRPs family that modulates the Wnt signal transduction pathway. Recent studies have showed down-regulation of SFRP1 expression in colorectal cancer (CRC). We aimed to evaluate the effect of SFRP1 on the proliferation, migration, invasion and apoptosis of CRC cells in vitro. Materials and methods: We used real-time fluorescence quantification (RT-PCR) and Western blotting to detect SFRP1 expression in CRC, pericarcinomatous tissues and CRC cell lines...
2018: Cancer Cell International
Qianqian Wang, Haiou Xu, Xiaofeng Zhao
BACKGROUND Like other human cancers, the malignancy of cervical cancer is also characterized by abilities of proliferation, migration, and invasion. Protein kinase C-zeta (PKCζ) has been highly correlated with several human cancers. Baicalin was proven to regulate PKC. This study aimed to investigate the anti-cancer effect and involved molecular mechanisms of baicalin on human cervical cancer. MATERIAL AND METHODS Baicalin at various concentrations was used to treat 2 human cervical cancer cell lines HeLa and SiHa...
April 3, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Nobutaka Ogasawara, Tamami Kudo, Masaki Sato, Yasushi Kawasaki, Sei Yonezawa, Satoru Takahashi, Yohei Miyagi, Yasuhiro Natori, Akinori Sugiyama
CRIM1 is a membrane protein that has been reported to be related to cell proliferation. CRIM1 is expressed in renal carcinoma cells, but its involvement in proliferation and malignant transformation remains unclear. We analyzed whether alterations in the characteristics of cancer cells are observed following knockdown of CRIM1. Decreased expression of CRIM1 did not affect proliferation or anchorage-independent growth. The results of wound healing and invasion assays showed that reduced expression of CRIM1 increased cells' migratory and invasive abilities...
2018: Biological & Pharmaceutical Bulletin
Milad Hashemzehi, Reihane Behnam-Rassouli, Seyed Mahdi Hassanian, Maryam Moradi-Binabaj, Reyhaneh Moradi-Marjaneh, Farzad Rahmani, Hamid Fiuji, Mahdi Jamili, Mahdi Mirahmadi, Nadia Boromand, Mehran Piran, Mohieddin Jafari, Amirhossein Sahebkar, Amir Avan, Majid Khazaei
Here we explored the antitumor-activity of novel-formulated-form of curcumin (phytosomal-encapsulated-curcumin) or in combination with 5-FU in breast cancer. The antiproliferative activity was assessed in 2D and 3-dimensional cell-culture-model. The migratory-behaviors of the cells were determined by migration assay. The expression levels of CyclinD1,GSK3a/b, P-AMPK, MMP9, and E-cadherin were studied by qRT-PCR and/or Western blotting. The anti-inflammatory of nano-curcumin was assessed, while antioxidant activity was evaluated by malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), and total thiols (T-SH)...
March 30, 2018: Journal of Cellular Biochemistry
Sandra Dragicevic, Mitja Kosnik, Aleksandra Divac Rankov, Matija Rijavec, Katarina Milosevic, Peter Korosec, Maja Skerbinjek Kavalar, Aleksandra Nikolic
PURPOSE: The maintaining of asthma control is difficult due to high variability in response to therapy among patients. Since matrix metalloproteinase 9 (MMP9) is implicated in inflammation and remodeling of asthmatic airways, it could be associated with adequate response to asthma therapy. The aim of this study was to investigate whether variants in 3' end of the MMP9 gene are associated with clinical phenotype and responsiveness to treatment in children with asthma. METHODS: The study included 127 asthmatic children from Slovenia...
March 29, 2018: Lung
Yuan-Chuan Lin, Yu-Chen Lin, Wei-Wen Kuo, Chia-Yao Shen, Yi-Chang Cheng, Yueh-Min Lin, Ruey-Lin Chang, Vijaya V Padma, Chih-Yang Huang, Chih-Yang Huang
Platycodin D (PD) is the main active saponin isolated from Platycodon grandiflorum (PG) and is reported to exhibit anticancer, anti-angiogenic, anti-inflammation and anti-obesity biological effects. The current study aims to evaluate the therapeutic efficacy of PD in cardiac fibrosis and for hypertrophy in spontaneous hypertension rats (SHRs) and to verify inhibition of the signaling pathway. Significant increases in the cardiac functional indices of left ventricular internal diameter end diastole (LVIDd) and left ventricular internal diameter end systole (LVIDs); the eccentric hypertrophy marker p-MEK5; concentric hypertrophy markers, such as CaMKII[Formula: see text] and calcineurin; and expression levels of NFATc3, p-GATA4 and BNP were observed in spontaneously hypertensive groups...
March 29, 2018: American Journal of Chinese Medicine
J Wu, H Sun, X Yang, X Sun
BACKGROUND: Androgen deprivation therapy (ADT) remains a standard treatment for advanced prostate cancers. However, recent studies revealed that while inhibiting the growth of certain types of prostate cancer cells, ADT promotes invasion. In the current study, we explored the effects of Nur77, an orphan nuclear receptor, on prostate cancer cell invasion following ADT. METHODS: Androgen receptor (AR) and Nur77 protein expression in patient tissues and cell lines were quantified via ELISA and western blot...
March 28, 2018: Clinical & Translational Oncology
Sarah L King, Christoffer K Goth, Ulrich Eckhard, Hiren Jitendra Joshi, Amalie D Haue, Sergey Vakhrushev, Katrine Schjoldager, Christopher M Overall, Hans H Wandall
Proteolytic processing is an irreversible post-translational modification functioning as a ubiquitous regulator of cellular activity. Protease activity is tightly regulated via control of gene expression, enzyme and substrate compartmentalization, zymogen activation, enzyme inactivation, and substrate availability. Emerging evidence suggests that proteolysis can also be regulated by substrate glycosylation and that glycosylation of individual sites on a substrate can decrease, or in rare cases, increase its sensitivity to proteolysis...
March 28, 2018: Journal of Biological Chemistry
Sigal Kfir, Raghavendra Basavaraja, Noa Wigoda, Shifra Ben-Dor, Irit Orr, Rina Meidan
To unveil novel global changes associated with corpus luteum (CL) maturation, we analyzed transcriptome data for the bovine CL on days 4 and 11, representing the developing vs. mature gland. Our analyses revealed 681 differentially expressed genes (363 and 318 on day 4 and 11, respectively), with ≥2 fold change and FDR of <5%. Different gene ontology (GO) categories were represented prominently in transcriptome data at these stages (e.g. days 4: cell cycle, chromosome, DNA metabolic process and replication and on day 11: immune response; lipid metabolic process and complement activation)...
2018: PloS One
Lei Zhang, Changtian Wang, Zhilong Xi, Demin Li, Zhiyun Xu
BACKGROUND The aims of this study were to investigate the effects of mercaptoethanol treatment on the expression of mediators of oxidative stress, inflammation, and extracellular matrix (ECM) degeneration in a mouse aortic dissection (AD) model. MATERIAL AND METHODS Twenty-four 8-month-old C57BL/6J mice were divided into three groups and studied for two weeks: 1) the aortic dissection (AD) Model group (N=8) underwent intraperitoneal injection of angiotensin II (Ang II) (5 ml/kg) three times every 24 h; 2) the mercaptoethanol Treated group (N=8) were given oral mercaptoethanol (2...
March 28, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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