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International Journal of Molecular Medicine

So-Jin Shin, Jinyoung Kim, Seungmee Lee, Jongwoo Baek, Jin Eui Lee, Chiheum Cho, Eunyoung Ha
Uterine leiomyoma is a benign tumor that grows within the muscle tissue of the uterus. Ulipristal acetate (UPA) is a pre‑operative drug used to reduce the size of leiomyoma. The aim of the present study was to examine the in vitro mechanistic details of action of UPA on uterine leiomyomas. Primary cultures of leiomyoma cells were isolated from patient myomectomy specimens and incubated in the presence or absence of UPA at various concentrations. The proliferation, cell viability and doubling time properties of the treated cells were analyzed...
July 17, 2018: International Journal of Molecular Medicine
Yu-Wei Ge, Zhi-Qing Liu, Zhen-Yu Sun, De-Gang Yu, Kai Feng, Zhen-An Zhu, Yuan-Qing Mao
The present study investigated the role of bidirectional ephrin‑B2/erythropoietin‑producing human hepatocellular receptor 4 (ephB4) signaling in the regulation of wear particle‑mediated osteoclastogenesis in vitro. Mouse bone marrow macrophages (BMMs) were induced into osteoclasts by receptor activator of nuclear factor‑κB ligand (RANKL, 50 ng/ml). EphB4‑Fc, an osteoblast membrane surface receptor (4 µg/ml), was used to stimulate the ephrin‑B2 ligand of osteoclasts in the presence and absence of titanium (Ti)...
July 17, 2018: International Journal of Molecular Medicine
Li Fan, Chunxian Huang, Jing Li, Tian Gao, Zhongqiu Lin, Tingting Yao
Cervical cancer is one of the most common types of female malignant tumor. It is well established that radiotherapy (RT) is the first‑line treatment of cervical cancer; however, radioresistance is a substantial obstacle to cervical cancer RT. At present, the mechanism underlying radioresistance remains unclear. Emerging evidence has demonstrated that long non‑coding RNAs (lncRNAs) function as crucial regulators of diverse cancers. Aerobic glycolysis, which is a common phenomenon in cancer cells, is associated with various biological functions, including radioresistance...
July 13, 2018: International Journal of Molecular Medicine
Yajun Chang, Wei Huang, Qian Sun, Suli Li, Zhongkai Yan, Qiumin Wang, Xiumin Liu
In the present study, the role and mechanism of microRNA‑634 (miRNA‑634) in the adjustment of nerve inflammation and apoptosis in cerebral infarction were investigated. In a cerebral infarction rat model, the expression of miRNA‑634 was increased, compared with that in the normal control group. The upregulated expression of miRNA‑634 in an in vitro model of cerebral infarction increased cell apoptosis and the protein expression of capsase‑3/B‑cell lymphoma 2‑associated X protein (Bax) via inactivation of the phosphoinositide 3‑kinase (PI3K)/Akt pathway...
July 13, 2018: International Journal of Molecular Medicine
Ji-Hyun Go, Jun-Dong Wei, Jae-In Park, Kyung-Seop Ahn, Jae-Hong Kim
Wogonin, a naturally occurring bioactive monoflavonoid isolated from Scutellariae radix (roots of Scutellariae baicalensis Georgi), has known anticancer effects. However, the molecular signaling mechanism by which wogonin inhibits invasiveness in breast cancer cells remains unclear. In the present study, it was observed that wogonin exerted an inhibitory effect on the lipopolysaccharide (LPS)‑enhanced invasiveness of MDA‑MB‑231 cells. In addition, wogonin inhibited the synthesis of interleukin‑8 (IL‑8) and matrix metallopeptidase‑9 (MMP‑9), which are critical for promoting invasiveness in MDA‑MB‑231 cells...
July 12, 2018: International Journal of Molecular Medicine
Weiping Huang, Ke Li, Aijun Liu, Zeyu Yang, Chenxia Hu, Dongfeng Chen, Hongqi Wang
The elucidation of the underlying molecular mechanism of H2O2‑induced adipocyte differentiation in mesenchymal stem cells (MSCs) is important for the development of treatments for metabolic diseases. The aim of the present study was to identify microRNA (miR)‑330‑5p, which targets retinoid X receptor γ (RXRγ) and to determine the function of H2O2‑induced adipogenic differentiation of MSCs. During differentiation of MSCs into adipocytes induced by H2O2, miR‑330‑5p expression was decreased with a concomitant increase in RXRγ expression...
July 12, 2018: International Journal of Molecular Medicine
Philippe Irigaray, Daniela Caccamo, Dominique Belpomme
A total of 32 electrohypersensitivity (EHS) self‑reporting patients were serially included in the present prospective study for oxidative stress and antioxidative stress response assessment. All thiobarbituric acid‑reactive substances (TBARs) were measured in the plasma, particularly malondialdehyde (MDA) for lipid peroxidation; additional measurements included total thiol group molecules, reduced glutathione (GSH), oxidized glutathione (GSSG) for oxidative stress assessment and nitrotyrosine, a marker of peroxynitrite‑induced oxidative/nitrosative stress...
July 12, 2018: International Journal of Molecular Medicine
Dongbin Park, Chul Jun Goh, Hyein Kim, Ji Seok Lee, Yoonsoo Hahn
Ubiquitylation of lysine residues in proteins serves a pivotal role in the efficient removal of misfolded or unused proteins and in the control of various regulatory pathways by monitoring protein activity that may lead to protein degradation. The loss of ubiquitylated lysines may affect the ubiquitin‑mediated regulatory network and result in the emergence of novel phenotypes. The present study analyzed mouse ubiquitylation data and orthologous proteins from 62 mammals to identify 193 conserved ubiquitylation sites from 169 proteins that were lost in the Euarchonta lineage leading to humans...
July 12, 2018: International Journal of Molecular Medicine
Jungik Park, Grace Choi, Mi-Jin Yim, Jeong Min Lee, Jong Su Yoo, Won Sun Park, Seong Kook Park, Saegwang Park, Su-Kil Seo, Tae-Geum Kim, Dae-Sung Lee, Il-Whan Choi
Phlorotannins (PTNs), a group of phenolic compounds from seaweeds, have diverse bioactivities. However, there has been no report on their antifibrotic effects during nasal polyp (NP) formation. In the present study, the effect of PTNs on transforming growth factor (TGF)‑β1‑induced profibrotic responses in nasal polyp‑derived fibroblasts (NPDFs) were determined and the relevant signaling pathways were investigated. The expression levels of collagen type‑1 (Col‑1) and fibronectin in NP tissues were measured by western blot analysis and immunohistochemistry...
July 12, 2018: International Journal of Molecular Medicine
Li-Ping Han, Bei Sun, Chun-Jun Li, Yun Xie, Li-Ming Chen
Toll‑like receptor 4 (TLR4)‑mediated immune and inflammatory signaling serves a pivotal role in the pathogenesis of nonalcoholic fatty liver disease (NAFLD). Our previous study demonstrated that celastrol treatment was able to improve hepatic steatosis and inhibit the TLR4 signaling cascade pathway in type 2 diabetic rats. The present study aimed to investigate the effects of celastrol on triglyceride accumulation and inflammation in steatotic HepG2 cells, and the possible mechanisms responsible for the regulation of cellular responses following TLR4 gene knockdown by small interfering RNA (siRNA) in vitro...
July 12, 2018: International Journal of Molecular Medicine
Jianping Zhang, Genjian Zheng, Lan Zhou, Pengcheng Li, Man Yun, Qi Shi, Tingli Wang, Xiaotong Wu
The activation of Notch signalling induces epithelial‑mesenchymal transition (EMT), but this signalling pathway and its association with EMT in the context of cell motility in oral squamous cell carcinoma (OSCC) remains unclear. The present study aimed to investigate the role of the Notch signalling pathway and EMT in the metastatic potential of OSCC using 2 cell lines, Tca8113 and CAL27. The data demonstrated that zinc finger domain SNAI1 (Snail) knockdown by small interfering RNA decreased the expression of vimentin and increased the expression of epithelial cadherin (E‑cadherin)...
July 12, 2018: International Journal of Molecular Medicine
Shihua Zhou, Ziqian Min, Kang Sun, Sijie Qu, Jinrun Zhou, Hongyan Duan, Huawei Liu, Xiaowen Liu, Zhijun Gong, Dan Li
Aerobic glycolysis is one of the characteristics of tumor metabolism and contributes to the development of tumors. Studies have identified that microRNA (miRNA/miR) serves an important role in glucose metabolism of tumors. miR‑199a‑3p is a member of the miR‑199a family that controls the outcomes of cell survival and death processes, and previous studies have indicated that the expression of miR‑199a‑3p is low and may be an inhibitor in several cancer types, including testicular tumors. The present study discussed the role and underlying mechanism of miR‑199a‑3p in aerobic glycolysis of Ntera‑2 cells and identified its downstream factors...
July 12, 2018: International Journal of Molecular Medicine
Hao Wu, Yupan Shang, Jiayue Yu, Xiaoli Zeng, Jinhua Lin, Mei Tu, Lek Hang Cheang, Jiaqing Zhang
Numerous studies have demonstrated the presence of resident nucleus pulposus stem/progenitor cells (NPSCs) in the tissue of the intervertebral disc (IVD). However, the cellular identity of NPSCs during IVD degeneration and ageing are poorly defined at present, despite significant progress in the understanding of NPSC biology. In the present study, NPSCs were isolated from human degenerated IVD and were characterized by flow cytometry, gene expression assays and proliferation and multipotency analysis. The results of the present study demonstrated that NPSCs isolated from human degenerated IVD may be divided into two groups according to the expression of mesenchymal stem cell (MSC) surface markers: The high expression of MSC surface markers group (H‑NPSCs) was highly positive for CD29, CD44, CD73, CD90 and CD105 at rates >95%, and the low expression of MSC markers surface markers group (L‑NPSCs), with the expression of CD29 and CD105 exhibiting individual variability, however, all at rates <95%...
July 12, 2018: International Journal of Molecular Medicine
Miao Chai, Liju Su, Xiaolei Hao, Meng Zhang, Lihui Zheng, Jiabing Bi, Xiao Han, Bohai Yu
The present study aimed to identify the molecular basis of the arthrogryposis‑renal dysfunction‑cholestasis (ARC) syndrome, which is caused by mutations in the vacuolar protein sorting 33 homolog B (VPS33B) gene. The microarray dataset GSE83192, which contained six liver tissue samples from VPS33B knockout mice and four liver tissue samples from control mice, was downloaded from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) were screened by the Limma package in R software...
July 12, 2018: International Journal of Molecular Medicine
Wenzheng Xia, Lei Zhuang, Meng Hou
Stem cell transplantation is a promising clinical strategy for curing ischemic cardiomyopathy. However, its efficacy is impaired by low cell survival following transplantation, partly caused by insufficient resistance of the transplanted stem cells to severe oxidative stress at the injury site. In the current study, it was demonstrated that the small‑molecule macrophage migration inhibitory factor (MIF) enhanced the defense of bone marrow‑derived mesenchymal stem cells (MSCs) against hypoxia/serum deprivation (SD)‑induced apoptosis in vitro...
July 12, 2018: International Journal of Molecular Medicine
Li Huang, Yanhong Yang, Fei Yang, Shaomin Liu, Ziqin Zhu, Zili Lei, Jiao Guo
EpCAM (epithelial cell adhesion molecule) is a type I transmembrane glycoprotein, which was originally identified as a tumor‑associated antigen due to its high expression level in rapidly growing epithelial tumors. Germ line mutations of the human EpCAM gene have been indicated as the cause of congenital tufting enteropathy. Previous studies based on cell models have revealed that EpCAM contributes to various biological processes including cell adhesion, signaling, migration and proliferation. Due to the previous lack of genetic animal models, the in vivo functions of EpCAM remain largely unknown...
July 11, 2018: International Journal of Molecular Medicine
Ruqing Liang, Meng Wang, Guizhi Zheng, Hua Zhu, Yaqin Zhi, Zongwen Sun
The present study aimed to develop a pathway‑based prognosis prediction model for glioblastoma (GBM). Univariate and multivariate Cox regression analysis were used to identify prognosis‑related genes and clinical factors using mRNA‑seq data of GBM samples from The Cancer Genome Atlas (TCGA) database. The expression matrix of prognosis‑related genes was transformed into pathway deregulation score (PDS) based on the Gene Set Enrichment Analysis (GSEA) repository using Pathifier software. With PDS scores as input, L1‑penalized estimation‑based Cox‑proportional hazards (PH) model was used to identify prognostic pathways...
July 11, 2018: International Journal of Molecular Medicine
Hongguang Chen, Yajiao Hu, Keliang Xie, Yajun Chen, Huixing Wang, Yingxue Bian, Yanyan Wang, Aili Dong, Yonghao Yu
Primary damage or dysfunction of the nervous system may cause or initiate neuropathic pain. However, it has been difficult to establish an effective treatment for neuropathic pain, as the mechanisms responsible for its pathology remain largely unknown. Autophagy is closely associated with the pathological process of neurodegenerative diseases, neuropathic injury and cancer, among others. The aim of the present study was to examine the changes in the autophagy‑lysosomal pathway and discuss the effects of autophagy on allodynia, hyperalgesia and astrocyte activation in neuropathic pain...
July 6, 2018: International Journal of Molecular Medicine
Valeria Righi, Caterina Constantinou, Meenu Kesarwani, Laurence G Rahme, A Aria Tzika
In the present study, high-resolution magic-angle spinning (HRMAS) nuclear magnetic resonance (NMR) spectroscopy was applied to live Pseudomonas aeruginosa (PA) bacterial cells to determine the metabolome of this opportunistic Gram-negative human pathogen, and in particular, its response to the volatile aromatic low molecular weight signaling molecule, 2-aminoacetophenone (2-AA). Multi-dimensional HRMAS NMR is a promising method which may be used to determine the in vivo metabolome of live intact bacterial cells; 2-AA is produced by PA and triggers the emergence of phenotypes that promote chronic infection phenotypes in in vitro and in vivo (animal) models...
July 6, 2018: International Journal of Molecular Medicine
Penglai Wang, Shaoyue Zhu, Changyong Yuan, Lei Wang, Jianguang Xu, Zongxiang Liu
Effects of shear stress on endotheliaxl differentiation of stem cells from human exfoliated deciduous teeth (SHEDs) were investigated. SHEDs were treated with shear stress, then reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to analyse the mRNA expression of arterial markers and western blot analysis was performed to analyse protein expression of angiogenic markers. Additionally, in vitro matrigel angiogenesis assay was performed to evaluate vascular-like structure formation...
July 6, 2018: International Journal of Molecular Medicine
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