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Jana Jakubikova, Danka Cholujova, Teru Hideshima, Paulina Gronesova, Andrea Soltysova, Takeshi Harada, Jungnam Joo, Sun-Young Kong, Raphael E Szalat, Paul G Richardson, Nikhil C Munshi, David M Dorfman, Kenneth C Anderson
Specific niches within the tumor bone marrow (BM) microenvironment afford a sanctuary for multiple myeloma (MM) clones due to stromal cell-tumor cell interactions, which confer survival advantage and drug resistance. Defining the sequelae of tumor cell interactions within the MM niches on an individualized basis may provide the rationale for personalized therapies. To mimic the MM niche, we here describe a new 3D co-culture ex-vivo model in which primary MM patient BM cells are co-cultured with mesenchymal stem cells (MSC) in a hydrogel 3D system...
October 13, 2016: Oncotarget
Fang-Fei Wei, Nadja E A Drummen, Lutgarde Thijs, Lotte Jacobs, Marjolein Herfs, Cynthia Van't Hoofd, Cees Vermeer, Jan A Staessen
Vitamin-K-dependent carboxylation of matrix Gla protein (MGP) protects the macrocirculation against calcification. We recently reported in a multiethnic population study that the estimated glomerular filtration rate, a microvascular trait, decreased and the risk of chronic kidney disease increased with higher circulating levels of inactive dephospho-uncarboxylated MGP, a marker of vitamin K deficiency. These findings highlighted the possibility that vitamin K might have a beneficial effect on the renal microcirculation...
September 2016: Pulse (Basel, Switzerland)
Noha A Osman, Nevine El-Abd, Mohamed Nasrallah
Vitamin K is necessary for the carboxylation of clotting factors and matrix Gla protein (MGP). Vitamin K epoxide reductase (VKOR) is the enzyme responsible for recirculation of Vitamin K increasing its tissue availability. Polymorphisms of VKOR may alter the function of MGP, thereby influencing vascular calcification. We conducted this study to investigate the relationship of VKORC1 gene single nucleotide polymorphisms (SNP's) to vascular calcification and clinically overt cardiovascular disease in chronic kidney disease (CKD) patients on hemodialysis (HD)...
September 2016: Saudi Journal of Kidney Diseases and Transplantation
Xi Yang, Kailiu Wu, Siyi Li, Longwei Hu, Jing Han, Dongwang Zhu, Xuerui Tian, Wei Liu, Zhen Tian, Laiping Zhong, Ming Yan, Chenping Zhang, Zhiyuan Zhang
The purpose of this study is to identify candidate genes that could predict prognosis of early-stage tongue squamous cell carcinoma (TSCC) and its occult cervical lymphatic metastasis by large-scale gene expression profiling. Tumor tissue and matched normal mucosa samples were collected from patients with TSCC and analyzed with Affymetrix HTA2.0 high-density oligonucleotide array. Differentially expressed genes in TSCC with cervical lymph node metastasis (CLNM) were further analyzed with Gene Ontology and Kyoto Encyclopedia of Genes and Genomes for their functions and related pathways...
October 4, 2016: Oncotarget
Helena Faust, Erika Eldenhed Alwan, Alexander Roslin, Johan Wennerberg, Ola Forslund
Incidence of Human Papillomavirus (HPV) positive head and neck squamous cell carcinoma (HNSCC) is rising in several countries. Intriguingly, large variations of HPV16 viral load and different proportions of the physical viral status among HNSCC have been reported. We analysed fresh biopsies of 275 HNSCC patients from the South Swedish Health Care Region for HPV types with MGP-PCR and Luminex. Seventy-eight HPV16-positive HNSCC cases were further investigated for viral DNA load and physical status using quantitative PCR for HPV E2-, E7- genes...
September 21, 2016: Journal of General Virology
Magdalena Rohde, Elisabeth Sievers, Andreas Janzer, Dominica Willmann, Angela Egert, Hubert Schorle, Roland Schüle, Jutta Kirfel
Cell migration is a central process in the development and maintenance of multicellular organisms. Tissue formation during embryonic development, wound healing, immune responses and invasive tumors all require the orchestrated movement of cells to specific locations. Histone demethylase proteins alter transcription by regulating the chromatin state at specific gene loci. FBXL10 is a conserved and ubiquitously expressed member of the JmjC domain-containing histone demethylase family and is implicated in the demethylation of H3K4me3 and H3K36me2 and thereby removing active chromatin marks...
September 16, 2016: Experimental Cell Research
Pradyot Prakash, Shashikant C U Patne, Ashish Kumar Singh, Mohan Kumar, Mukti Nath Mishra, Anil Kumar Gulati
AIMS: To devise nested multiplex polymerase chain reaction (NMPCR) protocol for detection of mucosal human papilloma viruses (HPVs) and typing of HPV-16 and -18 in formalin-fixed, paraffin-embedded (FFPE) tissues of carcinoma cervix (CaCx). SETTINGS AND DESIGN: Cross-sectional observational study. MATERIALS AND METHODS: NMPCR was done for simultaneous detection of HPV, targeting 134 bp L1 capsid gene employing GP+/mGP+ primers and typing of genotypes-16 and -18, targeting E6/E7 gene from 34 FFPE tissue blocks of CaCx and cervical intraepithelial neoplasia (CIN)...
July 2016: Journal of Global Infectious Diseases
Najla Aissa-Grouz, Josette Garnier, Gilles Billen
The lower Seine River is severely affected by the release of the treated wastewater from the 12 million inhabitants of the Paris agglomeration. Whereas urban effluents were the major source of phosphorus pollution in the late 1980s, the ban on polyphosphates from detergents in 1991 considerably reduced the phosphorus (P) loading to the Seine River and was followed in 2000 by the implementation of phosphorus treatment in the largest wastewater treatment plant of Paris conurbation (Seine Aval). Phosphorus discharged to the rivers from domestic wastewater was reduced by 80 %, significantly decreasing phytoplankton biomass in the large branches of the Seine River...
September 9, 2016: Environmental Science and Pollution Research International
Cristina Salmerón, Natàlia Riera-Heredia, Joaquim Gutiérrez, Isabel Navarro, Encarnación Capilla
During the last decades, adipogenesis has become an emerging field of study in aquaculture due to the relevance of the adipose tissue in many physiological processes and its connection with the endocrine system. In this sense, recent studies have translated into the establishment of preadipocyte culture models from several fish species, sometimes lacking information on the mRNA levels of adipogenic genes. Thus, the aim of this study was to determine the gene expression profile of gilthead sea bream (Sparus aurata) primary cultured mesenchymal stem cells (MSCs) from different origin (adipose tissue and vertebra bone) during adipogenesis...
2016: Frontiers in Endocrinology
Teresa Borrás
Arterial calcification results in arterial stiffness and higher systolic blood pressure. Arterial calcification is prevented by the high expression of the Matrix-Gla gene (MGP) in the vascular smooth muscle cells (VSMC) of the arteries' tunica media. Originally, MGP, a gene highly expressed in cartilage and VSMC, was found to be one of the top expressed genes in the trabecular meshwork. The creation of an Mgp-lacZ Knock-In mouse and the use of mouse genetics revealed that in the eye, Mgp's abundant expression is localized and restricted to glaucoma-associated tissues from the anterior and posterior segments...
September 1, 2016: Experimental Eye Research
Zhen Chen, Chi Sun Poon
This study explored the suitability of using sewage sludge ash (SSA) and mixed-coloured glass powder (MGP) as construction materials in cement mortars. Positive findings from this study may help promote the recycling of waste SSA and MGP in construction works. The results indicated that the SSA decreased while MGP improved the mortar workability. The SSA exhibited very low pozzolanic activity, but the cement mortar prepared with 20% SSA yielded strength values slightly superior to those of the glass mortars due to its water absorption ability...
August 30, 2016: Environmental Technology
Aarati Nayak, Anita Raikar, Vijaylaxmi Kotrashetti, Ramakant Nayak, Sumedha Shree, Soumya Kambali
BACKGROUND: Apoptosis plays a critical role in the regulation of inflammation and host immune response. It helps in tissue homeostasis and a disturbance in this is often associated with disease. The use of histochemical stains like hematoxylin and eosin (H and E) and methyl green-pyronin (MGP) can provide a simple and cost-effective method for the detection of apoptotic cells. AIM: Study intended to analyze the expression of apoptosis in the gingival epithelium of healthy subjects and in patients with chronic periodontitis, using H and E and MGP...
May 2016: Journal of Indian Society of Periodontology
Wei Wang, Zhiwei Wang, Jun Zhao, Min Wei, Xinghua Zhu, Qi He, Tianlong Ling, Xiaoyan Chen, Ziang Cao, Yixin Zhang, Lei Liu, Minxin Shi
Current prognostic factors fail to accurately determine prognosis for patients with esophageal squamous cell carcinoma (ESCC) after surgery. Here, we constructed a survival prediction model for prognostication in patients with ESCC. Candidate molecular biomarkers were extracted from the Gene Expression Omnibus (GEO), and Cox regression analysis was performed to determine significant prognostic factors. The survival prediction model was constructed based on cluster and discriminant analyses in a training cohort (N=205), and validated in a test cohort (N=207)...
August 18, 2016: Oncotarget
Ju-Ang Kim, Jiwon Lim, Raja Naren, Hui-Suk Yun, Eui Kyun Park
UNLABELLED: Similar to calcium phosphates, magnesium phosphate (MgP) ceramics have been shown to be biocompatible and support favorable conditions for bone cells. Micropores below 25μm (MgP25), between 25 and 53μm (MgP53), or no micropores (MgP0) were introduced into MgP scaffolds using different sizes of an NaCl template. The porosities of MgP25 and MgP53 were found to be higher than that of MgP0 because of their micro-sized pores. Both in vitro and in vivo analysis showed that MgP scaffolds with high porosity promoted rapid biodegradation...
October 15, 2016: Acta Biomaterialia
Radheshyam R Pawar, Prabuddha Gupta, Lalhmunsiama, Hari C Bajaj, Seung-Mok Lee
The separation of fine spent sorbents from treated water after remediation is a major difficulty associated with phosphate wastewater treatment technology. In this study, a novel aluminium-pillared acid activated bentonite powder (Al-ABn) and alginate immobilized aluminium-pillared acid activated bentonite beads (Al-ABn-AB) were synthesized and used for the removal of aqueous phosphate. The phosphate removal behaviour of adsorbents were evaluated by batch experiments as a function of various parameters such as pH, initial concentration, contact time, temperature, adsorbent dose and presence of coexisting ions...
August 11, 2016: Science of the Total Environment
F Wei, N E A Drummen, A E Schutte, L Thijs, L Jacobs, T Petit, W Y Yang, W Smith, Z Y Zhang, Y M Gu, T Kuznetsova, P Verhamme, K Allegaert, R Schutte, E Lerut, P Evenepoel, C Vermeer, J A Staessen
OBJECTIVE: Vitamin K (VK) dependent carboxylation of matrix Gla protein (MGP) protects the macrocirculation against calcification. Whether glomerular filtration (GFR), a renal microvascular trait, is related to circulating desphospho-uncarboxylated MGP (dp-ucMGP) has not been explored before. We therefore investigated our hypothesis in our Flemish Study on Environment, Genes and Health Outcomes (FLEMENGHO) and sought replication in the South African Study Regarding the Influence of Sex, Age and Ethnicity on Insulin Sensitivity and Cardiovascular Function (SAfrEIC)...
September 2016: Journal of Hypertension
Zhenqiang Xu, Congliang Ji, Yan Zhang, Zhe Zhang, Qinghua Nie, Jiguo Xu, Dexiang Zhang, Xiquan Zhang
BACKGROUND: Residual feed intake (RFI) is a powerful indicator for energy utilization efficiency and responds to selection. Low RFI selection enables a reduction in feed intake without affecting growth performance. However, the effective variants or major genes dedicated to phenotypic differences in RFI in quality chickens are unclear. Therefore, a genome-wide association study (GWAS) and RNA sequencing were performed on RFI to identify genetic variants and potential candidate genes associated with energy improvement...
2016: BMC Genomics
Yutaka Torii, Takuma Fujii, Iwao Kukimoto, Miyuki Saito, Takashi Iwata, Hiroshi Takahashi, Ryoko Ichikawa, Satoshi Kawai, Sayaka Otani, Daisuke Aoki
Monitoring the attribution of human papillomavirus (HPV) genotypes to cervical precancerous lesions is essential in assessing the efficacy of HPV vaccines. To resolve the lack of studies comparing the HPV genotyping procedures used to estimate HPV genotype attribution, we performed a retrospective cross-sectional study to determine the appropriate genotyping procedures for evaluating the potential efficacy of HPV vaccines. Three procedures, including two different genotyping methods, Clinichip(®) HPV test (Chip) and modified GP5+/6+ PCR coupled to fluorescent bead sorter detection (MGP), and in exfoliated cervical cells (C-Chip and C-MGP, respectively) or formalin-fixed paraffin-embedded tissues (F-MGP), were compared...
August 8, 2016: Cancer Science
Ya-Li Hu, Jie Zhang, Liu-Chen Fu, Ya Yang
OBJECTIVE: To observe the effect of parathyroid hormone (PTH)(1-34) on the expression of matrix Gla protein (MGP) and Wnt/β-catenin signaling pathway and elucidate the possible molecular mechanism of PTH (1-34) in the prevention and treatment of osteoporosis. METHODS: MG63 cells treated with PTH (1-34) at 10(-9), 10(-8), and 10(-7) mol/L, alone or in combination with Wnt/β-catenin signaling pathway inhibitors DKK-1 (200 ng/ml) were examined for mRNA and protein expressions related with Wnt/β-catenin signaling with real-time PCR and Western blotting...
June 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
Seyed Amir Malekpour, Hamid Pezeshk, Mehdi Sadeghi
MOTIVATION: Association of Copy Number Variation (CNV) with schizophrenia, autism, developmental disabilities and fatal diseases such as cancer is verified. Recent developments in Next Generation Sequencing (NGS) have facilitated the CNV studies. However, many of the current CNV detection tools are not capable of discriminating tandem duplication from non-tandem duplications. RESULTS: In this study, we propose MGP-HMM as a tool which besides detecting genome-wide deletions discriminates tandem duplications from non-tandem duplications...
September 2016: Mathematical Biosciences
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