Read by QxMD icon Read


Eliza Tsitoura, Athol U Wells, Kostantinos Karagiannis, Ismini Lasithiotaki, Eirini Vasarmidi, Eleni Bibaki, Chara Koutoulaki, Hiroe Sato, Demetrios A Spandidos, Nikolaos M Siafakas, George Sourvinos, Katerina M Antoniou
MicroRNA signatures of BAL cells and alveolar macrophages are currently lacking in IPF. Here we sought to investigate the expression of fibrosis-related microRNAs in the cellular component of the BAL in IPF. We thus focused on microRNAs previously associated with fibrosis (miR-29a, miR-29b, miR-29c, let-7d, and miR-21) and rapid IPF progression (miR-185, miR-210, miR-302c-3p miR-376c and miR-423-5p). Among the tested microRNAs miR-29a and miR-185 were found significantly downregulated in IPF while miR-302c-3p and miR-376c were not expressed by BAL cells...
October 18, 2016: Oncotarget
M Seifi-Najmi, M Hajivalili, R Safaralizadeh, S Sadreddini, S Esmaeili, R Razavi, M Ahmadi, H Mikaeili, B Baradaran, K Shams-Asenjan, M Yousefi
High-mobility group AT-hook2 (HMGA2), involved in epithelial mesenchymal transition (EMT) process, has a pivotal role in lung cancer metastasis. Lung cancer therapy with HMGA2 suppressing small interfering RNA (siRNA) has been introduced recently while doxorubicin (DOX) has been used as a frequent cancer chemotherapy agent. Both reagents have been faced with obstacles in clinic which make them ineffective. NanoParticles (NPs) provided a platform for efficient co delivery of the anticancer drugs. The aim of this study was production and in vitro characterization of different pharmacological groups (siRNA, DOX or siRNA-DOX) of carboxymethyl dextran thrimethyl chitosan nanoparticles (CMDTMChiNPs) on cytotoxicity, gene expression, apoptosis and migration of metastatic lung cancer cell line (A-549)...
September 30, 2016: Cellular and Molecular Biology
David Agustriawan, Chien-Hung Huang, Jim Jinn-Chyuan Sheu, Shan-Chih Lee, Jeffrey J P Tsai, Nilubon Kurubanjerdjit, Ka-Lok Ng
Epigenetic regulation has been linked to the initiation and progression of cancer. Aberrant expression of microRNAs (miRNAs) is one such mechanism that can activate or silence oncogenes (OCGs) and tumor suppressor genes (TSGs) in cells. A growing number of studies suggest that miRNA expression can be regulated by methylation modification, thus triggering cancer development. However, there is no comprehensive in silico study concerning miRNA regulation by direct DNA methylation in cancer. Ovarian serous cystadenocarcinoma (OSC) was therefore chosen as a tumor model for the present work...
October 1, 2016: Computational Biology and Chemistry
Kathrin Günther, Ronja Foraita, Juliane Friemel, Frauke Günther, Jörn Bullerdiek, Rolf Nimzyk, Dominique Nadine Markowski, Thomas Behrens, Wolfgang Ahrens
BACKGROUND: The transcription factor high-mobility AT-hook 2 (HMGA2) is involved in stem cell renewal and is expressed in many tumor tissues. Head and neck squamous cell carcinomas (HNSCC) comprise tumors of the upper aerodigestive tract and are characterized by high recurrence rates that represent a challenge to patient management. The study addresses the potential of HMGA2 as a molecular biomarker for HNSCC patient survival. METHODS: Patients with HNSCC of the larynx, pharynx, tonsils, or oral cavity were recruited in a hospital-based case-control study (n=202)...
October 14, 2016: Cancer Epidemiology, Biomarkers & Prevention
Xiaocan Hou, Wencui Wan, Jing Wang, Mingzhe Li, Yiwen Wang, Yaobing Yao, Lihong Feng, Lijun Jing, Hong Lu, Yanjie Jia, Tao Peng
This study aimed to investigate the effects of exosomes derived from BM-MSCs transduced with let-7a on B16f10 cells and BM-MSCs. BM-MSCs were transduced with let-7a and the exosomes of them were isolated for further culture of B16f10 cells and BM-MSCs. The migration of B16f10 cells were detected by transwell, proliferation of B16f10 cells and BM-MSCs was examined by MTT method, HMGA2 expression was measured by western blot. In addition, the let-7a secreted level in exosomes and IGF level were measured by RT-PCR and ELISA respectively...
2016: American Journal of Translational Research
Honghai Xia, Jun Cao, Qing Li, Yang Lv, Weidong Jia, Weihua Ren, Qingyu Cheng, Xiaoyuan Song, Geliang Xu
The recent identification of "Side Population" (SP) cells in a number of unrelated human cancers has renewed interests in the hypothesis of cancer stem cells. Here we isolated SP cells from HepG2 cells and 18 of the 21 fresh hepatocellular carcinoma (HCC) tissue samples. These SP cells have higher abilities of forming spheroids, invasion and migration. Tumors could generate only from SP, not non-SP (NSP), cells in a low dose of subcutaneous injection to the NOD/SCID mice (5 × 10(2) cells/mouse). The mRNA microarray analysis of the SP vs...
October 11, 2016: Scientific Reports
Bingjian Lu, Haiyan Shi, Xiaofei Zhang
Uterine myxoid leiomyosarcoma (MLMS) is a rare tumor that requires modified diagnostic criteria compared with conventional leiomyosarcoma. We analyzed the clinicopathological and immunohistochemical features of 10 MLMS cases from a single institution. 9/10 MLMS showed an invasive border and 2/10 had vascular invasion. Seven cases exhibited low-grade nuclear features, low mitotic counts (median: 2/10HPFs) and no tumor cell necrosis. They were all at FIGO stage I. Two recurred at the vaginal vault at 38 and 61 months, respectively...
October 4, 2016: Human Pathology
(no author information available yet)
The GMR editorial staff was alerted about some manuscripts that were found to be substantially equal. The Publisher and Editor decided to retract these articles in accordance with the recommendations of the Committee on Publication Ethics (COPE). After a thorough investigation, we have strong reason to believe that the peer review process was failure and, after review and contacting the authors, the editors of Genetics and Molecular Research decided to retract these articles. The authors and their institutions were advised of this serious breach of ethics...
September 30, 2016: Genetics and Molecular Research: GMR
Ya Wang, Ying Le, Jun-Yu Xue, Zong-Ji Zheng, Yao-Ming Xue
TGF-β1-induced epithelial to mesenchymal transition (EMT) process of tubular epithelial cells plays a leading role in the occurrence and progression of renal fibrosis as seen in diabetic nephropathy (DN). High mobility group AT-hook 2 (HMGA2) is considered to be involved in TGF-β1-mediated EMT via multifactorial mechanisms. Specific microRNAs (miRNAs) are closely associated with EMT, and here we focused on let-7d miRNA as a regulator of HMGA2. This study aims to investigate the effects of HMGA2 on EMT process induced by TGF-β1 using small interfering RNA (siRNA) technique in vitro, and further explore the potential role of let-7d miRNA during renal fibrosis in DN...
October 28, 2016: Biochemical and Biophysical Research Communications
Feng Yan Yu, Yun Tu, Ying Deng, Cancan Guo, Jue Ning, Yuzhen Zhu, Xiaohua Lv, Hua Ye
This study aimed to understand the exact function and potential mechanism of miR-4500 in colorectal cancer (CRC). In this study, the expression of miR-4500 was decreased in both CRC cells and tissues, and downregulated miR-4500 indicated advanced tumor stage and poor survival. By bisulfite sequencing analysis, we found that the CpG island in the promoter region of miR-4500 was hypermethylated in CRC cells and tissues compared with normal control cells and non-tumor tissues, respectively. Functionally, gain- and loss-of-function analyses indicated the tumor suppressor role of miR-4500: it suppressed cell proliferation, cell cycle progression, migration, and invasion...
September 29, 2016: Cancer Biology & Therapy
Jie Yang, Zegao Zhang, Wen Guo, Yuhua Ma, Raila Muhammed Emin, Karima Abudubari, Glmira Hayrat, Hasiyet Wali, Xiaoli Qi, Chunhua Liu, Miaomiao Ma, Pulat Nurbek
The goal of this study was to explore the correlation between single nucleotide polymorphisms (SNPs)and susceptibility to cervical cancer (CC) in a population from Xinjiang Uygur. Participating were 247 patients with CC and 285 healthy women. Fourteen SNPs in nine miRNA genes were selected. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated using unconditional logistic regression analysis. Multivariate logistic regression analysis was used to assess the correlation of SNPs with CC. The minor allele "C" of rs300574 in SPRY1 was associated with an increased risk of CC based on analysis of the allele, codominant, recessive and log-additive models, but an opposite result was found with the over-dominant model...
September 23, 2016: Oncotarget
Xingyu Zhou, Mingsen Li, Huaxing Huang, Keren Chen, Zhuning Yuan, Ying Zhang, Yaping Nie, Hu Chen, Xumeng Zhang, Luxi Chen, Yaosheng Chen, Delin Mo
Although the mechanism underlying modulation of transcription factors in myogenesis has been well elucidated, the function of the transcription cofactors involved in this process remains poorly understood. Here, we identified HMGB2 as an essential nuclear transcriptional co-regulator in myogenesis. HMGB2 was highly expressed in undifferentiated myoblasts and regenerating muscle. Knockdown of HMGB2 inhibited myoblast proliferation and stimulated its differentiation. HMGB2 depletion down-regulated Myf5 and Cyclin A2 on the protein but not mRNA level...
September 26, 2016: Journal of Cell Science
Inga Grünewald, Marcel Trautmann, Alina Busch, Larissa Bauer, Sebastian Huss, Petra Schweinshaupt, Claudia Vollbrecht, Margarete Odenthal, Alexander Quaas, Reinhard Büttner, Moritz F Meyer, Dirk Beutner, Karl-Bernd Hüttenbrink, Eva Wardelmann, Markus Stenner, Wolfgang Hartmann
Salivary duct carcinoma (SDC) is an aggressive adenocarcinoma of the salivary glands associated with poor clinical outcome. SDCs are known to carry TP53 mutations in about 50%, however, only little is known about alternative pathogenic mechanisms within the p53 regulatory network. Particularly, data on alterations of the oncogenes MDM2 and CDK4 located in the chromosomal region 12q13-15 are limited in SDC, while genomic rearrangements of the adjacent HMGA2 gene locus are well documented in subsets of SDCs. We here analyzed the mutational status of the TP53 gene, genomic amplification of MDM2, CDK4 and HMGA2 rearrangement/amplification as well as protein expression of TP53 (p53), MDM2 and CDK4 in 51 de novo and ex pleomorphic adenoma SDCs...
September 20, 2016: Oncotarget
Qiongyan Zou, Haijun Wu, Fenfen Fu, Wenjun Yi, Lei Pei, Meirong Zhou
Raf-1 kinase inhibitor protein (RKIP) is a tumor and metastasis suppressor in cancer cells. MicroRNAs (miRNAs) have been suggested to play a vital role in tumor initiation and progression by negatively regulating oncogenes and tumor suppressors. Quite recently, studies have identified some miRNAs operating to promote or suppress tumor invasion or metastasis via regulating metastasis-related genes, providing potential therapeutic targets on anti-metastasis strategy. In this study, we found the expression of RKIP and miR-185 in breast cancer tissues was significantly lower than that of in normal breast tissues...
September 17, 2016: Archives of Biochemistry and Biophysics
Mana Fukushima, Inga-Marie Schaefer, Christopher D M Fletcher
Myolipoma of soft tissue, which was first described by Meis and Enzinger (1991), is a rare benign neoplasm characterized by the admixture of mature adipocytes and well-differentiated smooth muscle cells. Recently, cytogenetic alteration of the HMGA2 gene has been reported in 2 myolipomas. We present the clinicopathologic features of 34 cases of myolipoma of soft tissue, study immunoreactivity for HMGA2, and review the previous literature. In our series, there were 32 women and 2 men, with age at presentation ranging from 35 to 94 years (median, 55 y)...
September 15, 2016: American Journal of Surgical Pathology
Sahar Esmailzadeh, Behzad Mansoori, Ali Mohammadi, Dariush Shanehbandi, Behzad Baradaran
PURPOSE: Overexpression of HMGA2, known as small non-histone chromosomal protein, is associated with progression of various tumors, including colorectal cancers. The aim of this study was to investigate the effect of a specific HMGA2 siRNA on apoptosis and cell cycle of HCT-116 (colorectal carcinoma) cells. METHODS: The cells were transfected with siRNAs using a transfection reagent. The cytotoxic effects of HMGA2 siRNA on colorectal carcinoma cells were determined using MTT assay...
September 14, 2016: Journal of Gastrointestinal Cancer
Liyan Jin, Jianhua Jin, Wenbin Lu, Juan Yao, Yue Wang
Objective To investigate the expression and significance of miR-33b and high mobility group AT-hook 2 (HMGA2) in esophageal squamous cell carcinoma (ESCC). Methods Real-time quantitative PCR (qRT-PCR) was used to detect the expression levels of miR-33b and HMGA2 mRNA from the ESCC and adjacent tissues. Immunohistochemical SP method was performed to test the protein level of HMGA2. After the miR-33b mimics, inhibitor and controls were separately transfected into TE-1 and Eca-109 cells, the expression levels of miR-33b and HMGA2 in each group were again determined by qRT-PCR and Western blotting...
September 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
Antonio Agostini, Ludmila Gorunova, Bodil Bjerkehagen, Ingvild Lobmaier, Sverre Heim, Ioannis Panagopoulos
Lipomas are common benign soft tissue tumors whose genetic and cytogenetic features are well characterized. The karyotype is usually near- or pseudodiploid with characteristic structural chromosomal aberrations. The most common rearrangements target the high mobility group AT-hook 2 (HMGA2) gene in 12q14.3, with breakpoints occurring within or outside of the gene locus leading to deregulation of HMGA2. The most common fusion partner for HMGA2 in lipoma is lipoma-preferred partner (3q27), but also other genes frequently recombine with HMGA2...
September 2016: Oncology Letters
Sabrina Peter, Haojie Yu, Roland Ivanyi-Nagy, Peter Dröge
HMGA2 is an important chromatin factor that interacts with DNA via three AT-hook domains, thereby regulating chromatin architecture and transcription during embryonic and fetal development. The protein is absent from differentiated somatic cells, but aberrantly re-expressed in most aggressive human neoplasias where it is causally linked to cell transformation and metastasis. DNA-binding also enables HMGA2 to protect cancer cells from DNA-damaging agents. HMGA2 therefore is considered to be a prime drug target for many aggressive malignancies...
September 1, 2016: Nucleic Acids Research
Frederick A Jakobiec, Anna M Stagner, Ralph C Eagle, Sara E Lally, Jeffrey F Krane
A 49-year-old woman with a past history of breast cancer slowly developed painless, lowgrade right proptosis with 20/25 visual acuity and 20/20 in the uninvolved left eye. Imaging studies disclosed an oval to round superotemporal mass in the right lacrimal fossa without bone erosion. Excisional biopsy revealed a pseudoencapsulated, bosselated tumor with a spindled, hypocellular and heavily PAS-positive stroma constituted by abundant basement membrane material and collagen. Scattered lumens and focal cribriform cellular clusters were present in the peripheries of several of the lobules...
August 24, 2016: Survey of Ophthalmology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"