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International Journal of Molecular Medicine

Xusheng Yuan, Junjun Chen, Min Dai
Paeonol (2'-hydroxy-4'-methoxyacetophenone) is an active component isolated from the root of Paeonia Suffruticosa Andrews. We previously found that paeonol inhibited vascular cell adhesion molecule-1 (VCAM‑1) expression, and thus may be useful for the prevention and treatment of rabbit atherosclerosis (AS); however, the underlying mechanisms are not yet well known. Recently, microRNAs (miRNAs or miRs) have been reported to play an important role in the pathogenesis of AS. In the present study, we examined the effects of paeonol on miRNA-126 (miR‑126) expression, and its ability to inhibit monocyte adhesion to oxidized low-density lipoprotein (ox-LDL)-injured vascular endothelial cells (VECs)...
October 17, 2016: International Journal of Molecular Medicine
Li Qi, Zhong Lu, Yong-Hong Sun, Hai-Tao Song, Wei-Kang Xu
Prostate carcinoma is a devastating disease which is characterized by insidious early symptoms, rapid progression and a poor prognosis. Tripartite motif-containing protein 16 (TRIM16) was identified as an estrogen- and antiestrogen-regulated gene in epithelial cells stably expressing estrogen receptors. The protein encoded by this gene contains two B-box domains and a coiled-coiled region that are characteristic of the B-box zinc finger protein family. Proteins belonging to this family have been reported to be involved in a variety of biological processes including cell growth, differentiation and pathogenesis...
October 17, 2016: International Journal of Molecular Medicine
Dominika Labochka, Barbara Moszczuk, Wojciech Kukwa, Cezary Szczylik, Anna M Czarnecka
Renal cell carcinoma (RCC) comprises 2‑3% of all malignant tumors in adults. Many studies have established the key roles of smoking, hypertension and other components of metabolic syndrome in the occurrence of RCC. Diabetes mellitus (DM), one of the main consequences of metabolic syndrome, appears much more often in patients with RCC. The prognosis for patients suffering from both diabetes and RCC is worse than for those with kidney cancer only. Diabetes is linked to higher rate of recurrence and a greater number of distant metastases...
October 17, 2016: International Journal of Molecular Medicine
Bjorn Baselet, Charlotte Rombouts, Abderrafi Mohammed Benotmane, Sarah Baatout, An Aerts
Traditionally, non-cancer diseases are not considered as health risks following exposure to low doses of ionizing radiation. Indeed, non-cancer diseases are classified as deterministic tissue reactions, which are characterized by a threshold dose. It is judged that below an absorbed dose of 100 mGy, no clinically relevant tissue damage occurs, forming the basis for the current radiation protection system concerning non-cancer effects. Recent epidemiological findings point, however, to an excess risk of non-cancer diseases following exposure to lower doses of ionizing radiation than was previously thought...
October 17, 2016: International Journal of Molecular Medicine
Yu Zhou, Yang Liu, Chao Hu, Yugang Jiang
MicroRNAs (miRNAs or miRs), a class of non-coding RNAs 18-25 nucleotides in length, act as key regulators in the development and malignant progression of various human cancers by modulating the expression of their target genes. Recently, miR‑16 has been demonstrated to be play a role in glioma. However, the regulatory mechanisms of miR‑16 in glioma growth and metastasis remain largely unclear. In the present study, qRT-PCR revealed that miR‑16 was significantly downregulated in 23 glioma tissue specimens compared to 7 normal brain tissue specimens...
October 17, 2016: International Journal of Molecular Medicine
Akbar Ahmad, Domokos Gerö, Gabor Olah, Csaba Szabo
Hydrogen sulfide (H2S) has been proposed to exert pro- as well as anti-inflammatory effects in various models of critical illness. In this study, we compared bacterial lipopolysaccharide (LPS)‑induced changes in inflammatory mediator production, indices of multiple organ injury and survival in wild‑type (WT) mice and in mice with reduced expression of one of the three H2S‑producing enzymes, cystathionine-γ-lyase (CSE), cystathionine-β-synthase (CBS) or 3-mercaptopyruvate sulfurtransferase (3MST)...
October 14, 2016: International Journal of Molecular Medicine
Ying Li, Bo Shi, Liping Huang, Xin Wang, Xiaona Yu, Baosheng Guo, Weidong Ren
Hypoxia-inducible factor-1α (HIF-1α) has been implicated in the pathogenesis of hypoxic pulmonary hypertension (PH). However, the potential clinical value of HIF-1α as a therapeutic target in the treatment of PH has not yet been evaluated. In this study, an animal model of hypoxia-induced PH was established by exposing adult rats to 10% O2 for 3 weeks, and the effects of the lentivirus-mediated delivery of HIF-1α short hairpin RNA (shRNA) by intratracheal instillation prior to exposure to hypoxia on the manifestations of hypoxia-induced PH were assessed...
October 14, 2016: International Journal of Molecular Medicine
Guangyong Chen, Yangdong Han, Wang He, Feng Liang
In the present study, we evaluated the protective effects of amentoflavone (AMF) against high-fat (HF) diet-induced metabolic dysfunction and focused on the influence of AMF on adipogenic differentiation during 3T3-L1 adipocyte differentiation. For this purpose, male Wistar rats were fed a HF diet or a HF diet with AMF (10 or 50 mg/kg). We found that AMF protected against HF diet-induced metabolic dysfunction in a dose-dependent manner, as evidenced by a decrease in the fasting blood glucose levels, fasting insulin levels and the homeostatic model assessment-insulin resistance index (HOMA‑IR), as well as by a decrease in the glucose level, as shown by the intraperitoneal glucose tolerance test and intraperitoneal insulin tolerance test...
October 14, 2016: International Journal of Molecular Medicine
Hongbo Hu, Baohui Yang, Yumin Li, Subin Zhang, Zheng Li
P2X purinoceptor 7 (P2X7) receptor (P2X7R) is known to play a significant role in inflammation and pain-causing diseases, including osteoarthritis (OA). However, the mechanisms of action of P2X7R and its role in OA remain unclear. The articular cartilage is the crucial region in which pathological changes occur in OA, involving the dysregulation of degradation and maintenance mechanisms. In this study, we aimed to reveal the molecular mechanisms of action of P2X7R in articular cartilage in OA-induced pain and inflammation by using AZD9056, an antagonist of P2X7R...
October 13, 2016: International Journal of Molecular Medicine
Ying Li Gu, Guan Qun Gao, Ning Ma, Lin Lin Ye, Li Wei Zhang, Xu Gao, Zhuo Bo Zhang
The aim of the present study was to investigate whether ciliary neurotrophic factor (CNTF) plays its neuroprotective role following hypoxic injury through the activation of signal transducer and activator of transcription 3 (STAT3) signaling. Firstly, to determine whether CNTF exerts its effects via STAT3 following hypoxic injury, cultured neurons from the cerebral cortex of mice were prepared and a neuronal model of hypoxia was then established. The neurons exposed to hypoxia were then pre-treated with CNTF and transfected with small interference RNA (siRNA) targeting STAT3 (STAT3 siRNA) using polybrene, or with STAT3Tyr705 mutant or STAT3Ser727 mutant using an electroporation system...
October 13, 2016: International Journal of Molecular Medicine
Di Che, Ti Zhou, Yuqing Lan, Jinye Xie, Haijun Gong, Chaoyang Li, Juan Feng, Honghai Hong, Weiwei Qi, Caiqi Ma, Qiyuan Wu, Xia Yang, Guoquan Gao
It has been reported that epithelial-mesenchymal transition (EMT) mediates multiple physiological and pathological processes. However, the occurrence and the pathogenic role of high glucose-induced EMT in retinal pigment epithelial cells (RPE cells) is unknown. The aim of this study was to examine the effects of high glucose on EMT in RPE cells. Cultured RPE cells were exposed to 25 mM D-glucose. A vector encoding the Snail gene and siRNA targeting Snail (Snail siRNA) were transfected into the cells to induce the overexpression or silencing of Snail, respectively...
October 6, 2016: International Journal of Molecular Medicine
Estelle R Simo-Cheyou, George Vardatsikos, Ashok K Srivastava
We have previously demonstrated that the non-receptor protein tyrosine kinase (NR-PTK) c-Src is an upstream regulator of endothelin-1 (ET-1) and angiotensin II-induced activation of protein kinase B (PKB) signaling in vascular smooth muscle cells (VSMCs). We have also demonstrated that ET-1 potently induces the expression of the early growth response protein-1 (Egr-1), a zinc finger transcription factor that is overexpressed in models of vascular diseases, such as atherosclerosis. However, the involvement of c-Src in ET-1‑induced Egr-1 expression has not yet been investigated and its role in mitogen-activated protein kinase (MAPK) signaling remains controversial...
October 6, 2016: International Journal of Molecular Medicine
Theodoros Eleftheriadis, Georgios Pissas, Maria Sounidaki, Konstantina Tsogka, Nikolaos Antoniadis, Georgia Antoniadi, Vassilios Liakopoulos, Ioannis Stefanidis
Indoleamine 2,3-dioxygenase (IDO) is expressed in antigen-presenting cells and by degrading L-tryptophan along the kynurenine pathway suppresses CD4+ T-cell proliferation, induces apoptosis and promotes differentiation towards a regulatory as opposed to an effector phenotype. Recent findings revealed that the above effects may be mediated through alterations in T-cell metabolism. In this study, the effect of IDO on fatty acid β-oxidation in CD4+ T-cells was evaluated in human mixed lymphocyte reactions (MLRs) using the IDO inhibitor, 1-DL-methyl-tryptophan...
September 23, 2016: International Journal of Molecular Medicine
Ming-Wei Liu, Rong Liu, Hai-Yin Wu, Wei Zhang, Jing Xia, Min-Na Dong, Wen Yu, Qiang Wang, Feng-Mei Xie, Rui Wang, Yun-Qiao Huang, Chuan-Yun Qian
Xuebijing injection (XBJ) has long been used to treat infectious diseases in China. The therapeutic effect of XBJ is probably associated with anti-inflammatory effects. However, the precise mechanisms responsible for the effects of XBJ remain unknown. The present study was conducted in order to evaluate the protective effects of XBJ in a rat model of D-galactosamine (D-Gal)- and lipopolysaccharide (LPS)‑induced acute liver injury. In the present study, the rats were injected with D-Gal and LPS intraperitoneally to induce acute liver injury...
September 23, 2016: International Journal of Molecular Medicine
Yuan Li, Tianyou Luo, Liang Wang, Jing Wu, Shixin Guo
MicroRNAs (miRNAs or miRs), a group of small non-coding RNAs, have been demonstrated to play key roles in various physicological processes and diseases, including diabetes, the most common metabolic disorder. However, the underlying mechanisms remains largely unknown. In this study, we aimed to investigate the role of miR‑19a‑3p in diabetes. The results of RT-qPCR demonstrated that the level of miR‑19a‑3p was significantly decreased in the diabetic patients, and that the decreased miR‑50a-5p level was significantly associated with a high concentration of blood glucose...
September 23, 2016: International Journal of Molecular Medicine
Yichun Kong, Bei Sun, Quanhong Han, Shuang Han, Yuchuan Wang, Ying Chen
Following the publication of this article, it was brought to our attention that five of the Figures contained in this study were published entirely, or in part, in the following publication, on which several of us were co-authors: Han S, Kong YC, Sun B, Han QH, Chen Y and Wang YC: microRNA-218 inhibits oxygen-induced retinal neovascularization via reducing the expression of roundabout 1. Chin Med J (Engl) 129: 709-715, 2016. While we had intended that these papers offered different research perspectives, we were reminded of the fact that, in submitting the article to International Journal of Molecular Medicine, the work described therein was required to be "original research that has not been published previously, and is not under consideration for publication elsewhere, in whole or in part"...
September 23, 2016: International Journal of Molecular Medicine
Young-Chang Cho, Ye Rang Kim, Ba Reum Kim, Tran The Bach, Sayeon Cho
Thunbergia alata (Acanthaceae) has been used traditionally to treat various inflammatory diseases such as fever, cough and diarrhea in East African countries including Uganda and Kenya. However, systemic studies elucidating the anti-inflammatory effects and precise mechanisms of action of T. alata have not been conducted, to the best of our knowledge. To address these concerns, we explored the anti-inflammatory effects of a methanol extract of T. alata (MTA) in macrophages. Non-cytotoxic concentrations of MTA (≤300 µg/ml) inhibited nitric oxide (NO) production in lipopolysaccharide (LPS)‑stimulated RAW 264...
September 21, 2016: International Journal of Molecular Medicine
Xianghuai Zheng, Bo Jia, Xi Lin, Jiusong Han, Xiaoling Qiu, Hongxing Chu, Xiang Sun, Weitao Hu, Jie Pan, Jun Chen, Jianjiang Zhao
The aim of the present study was to identify agents capable of inhibiting the invasion and metastasis of tongue squamous cell carcinoma and thereby improve the outcomes of patients suffering from tongue cancer. FRMD4A antibodies were used to probe 78 paraffin-embedded specimens of tongue squamous cell carcinoma and 15 normal tongue tissues, which served as controls. Immunohistochemical methods were then used for analysis. Clinical pathological parameters were obtained, and the association between FRMD4A expression in the samples and the pathological parameters was analyzed...
September 21, 2016: International Journal of Molecular Medicine
Yu-Dong Xiao, Ramchandra Paudel, Jun Liu, Cong Ma, Zi-Shu Zhang, Shun-Ke Zhou
Magnetic resonance imaging (MRI) contrast agents are categorised according to the following specific features: chemical composition including the presence or absence of metal atoms, route of administration, magnetic properties, effect on the magnetic resonance image, biodistribution and imaging applications. The majority of these agents are either paramagnetic ion complexes or superparamagnetic magnetite particles and contain lanthanide elements such as gadolinium (Gd3+) or transition metal manganese (Mn2+)...
September 21, 2016: International Journal of Molecular Medicine
Jiaqi Liu, Ying Wei, Qingli Luo, Fei Xu, Zhengxiao Zhao, Hongying Zhang, Linwei Lu, Jing Sun, Feng Liu, Xin Du, Mihui Li, Kai Wei, Jingcheng Dong
Baicalin, extracted and purified from the Chinese medicinal plant, Scutellaria baicalensis Georgi (Huang qin in Chinese), exhibits potent anti-inflammatory activity against asthma. However, it remains unknown whether baicalin inhibits the activity of CC chemokine receptor 7 (CCR7) and its ligands, which are crucial for the initiation of airway inflammation. In the present study, we investigated the effects of baicalin on CCR7 and its ligands, CCL19 and CCL21, as well as on the nuclear factor-κB (NF-κB) pathway in a mouse model of asthma...
September 21, 2016: International Journal of Molecular Medicine
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