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Antonella Sferra, Fabiana Fattori, Teresa Rizza, Elsabetta Flex, Emanuele Bellacchio, Alessandro Bruselles, Stefania Petrini, Serena Cecchetti, Massimo Teson, Fabrizia Restaldi, Andrea Ciolfi, Filippo M Santorelli, Ginevra Zanni, Sabina Barresi, Claudia Castiglioni, Marco Tartaglia, Enrico Bertini
Microtubules participate in fundamental cellular processes, including chromosomal segregation and cell division, migration, and intracellular trafficking. Their proper function is required for correct central nervous system development and operative preservation, and mutations in genes coding tubulins, the constituting units of microtubules, underlie a family of neurodevelopmental and neurodegenerative diseases, collectively known as "tubulinopathies", characterized by a wide range of neuronal defects resulting from defective proliferation, migration, and function...
March 14, 2018: Human Molecular Genetics
Min Young Kim, Ji Sook Kim, Seung Han Son, Chang Su Lim, Hea Young Eum, Dae Hyun Ha, Mi Ae Park, Eun Jung Baek, Buom-Yong Ryu, Ho Chul Kang, Vladimir N Uversky, Chul Geun Kim
During hematopoiesis, red blood cells originate from the hematopoietic stem cell reservoir. Although the regulation of erythropoiesis and globin expression has been intensively investigated, the underlining mechanisms are not fully understood, including the interplay between transcription factors and epigenetic factors. Here, we uncover that the Mbd2-free NuRD chromatin remodeling complex potentiates erythroid differentiation of proerythroblasts via managing functions of the CP2c complexes. We found that both Mbd2 and Mbd3 expression is downregulated during differentiation of MEL cells in vitro and in normal erythropoiesis in mouse bone marrow, and Mbd2 downregulation is crucial for erythropoiesis...
March 14, 2018: Nucleic Acids Research
Peng Liu, Teng-Fei Zhou, Bao-An Qiu, Ying-Xiang Yang, Yong-Jian Zhu, Yang An, Wen-Chao Zhao, Yin-Tao Wu, Peng-Fei Ma, Jing-Bo Li, Nian-Xin Xia
Cholangiocarcinoma (CCA) is one of the most common hepatic and biliary malignancies, accounting for about 3% of all gastrointestinal tumors. GATA5 is a transcription factor capable of suppressing the development of various human cancer types. Transcriptional inactivation and CpG island (CGI) methylation of GATA3 and GATA5, two members of the GATA family of transcription factors, have been observed in some human cancers. But whether high-density CGI methylation of GATA5 is associated with the clinical course of CCA patients has not been clarified...
March 13, 2018: Translational Oncology
Xiang Jiao, Wen Liu, Hovsep Mahdessian, Patrick Bryant, Jenny Ringdahl, Maria Timofeeva, Susan M Farrington, Malcolm Dunlop, Annika Lindblom
Genome-wide association studies (GWAS) have identified dozens of common genetic variants associated with risk of colorectal cancer (CRC). However, the majority of CRC heritability remains unclear. In order to discover low-frequency, high-risk CRC susceptibility variants in Swedish population, we genotyped 1 515 CRC patients enriched for familial cases, and 12 108 controls. Case/control association analysis suggested eight novel variants associated with CRC risk (OR 2.0-17.6, p-value < 2.0E-07), comprised of seven coding variants in genes RAB11FIP5, POTEA, COL27A1, MUC5B, PSMA8, MYH7B, and PABPC1L as well as one variant downstream of NEU1 gene...
2018: PloS One
Pu Liu, Chao Zhang, Jin-Qi Ma, Li-Yuan Zhang, Bo Yang, Xin-Yu Tang, Ling Huang, Xin-Tong Zhou, Kun Lu, Jia-Na Li
Cytokinin oxidase/dehydrogenases (CKXs) play a critical role in the irreversible degradation of cytokinins, thereby regulating plant growth and development. Brassica napus is one of the most widely cultivated oilseed crops worldwide. With the completion of whole-genome sequencing of B. napus , genome-wide identification and expression analysis of the BnCKX gene family has become technically feasible. In this study, we identified 23 BnCKX genes and analyzed their phylogenetic relationships, gene structures, conserved motifs, protein subcellular localizations, and other properties...
March 16, 2018: Genes
Guirong Tang, Qiong Li, Shenghui Xing, Ningning Li, Zheng Tang, Liangliang Yu, Junhui Yan, Xuan Li, Li Luo
Agrobacterium tumefaciens infects and causes crown galls in dicot plants by transferring T-DNA from the Ti plasmid to the host plant via a type IV secretion system (T4SS). This process requires appropriate environmental conditions, certain plant secretions and bacterial regulators. In our previous work, a member of the LysR family of transcriptional regulators (LsrB) in Sinorhizobium meliloti was found to modulate its symbiotic interactions with the host plant alfalfa. However, the function of its homologue in A...
March 16, 2018: Molecular Plant-microbe Interactions: MPMI
Fırat Kurt, Ertugrul Filiz
Iron (Fe) is an essential element for plant life. Its deficiency impedes growth and development and excessive iron can cause the toxic effect via the Fenton reaction. Thus, plants have developed various mechanisms to acquire, distribute and utilize Fe for the maintenance of their iron homeostasis at cellular and systemic levels. A basic helix-loop-helix (bHLH) transcription factor family plays essential roles in many regulatory and development processes in plants. In this study, we aimed to understand the roles of bHLH38, bHLH39, bHLH100 and bHLH101 genes for Fe homeostasis in Arabidopsis, tomato, rice, soybean and maize species by using bioinformatics approaches...
March 15, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
Larissa Dettmar, Nancy Ahmed, Matthias Kotzsch, Sandra Diersch, Rudolf Napieralski, Dalila Darmoul, Manfred Schmitt, Wilko Weichert, Marion Kiechle, Julia Dorn, Viktor Magdolen
PURPOSE: Gene expression of a variety of the 15 members of the KLK serine protease family is dysregulated in ovarian cancer. We aimed at determining the clinical relevance of KLK13 and KLK14 mRNA expression in tumor tissues of a homogeneous patient cohort afflicted with advanced high-grade serous ovarian cancer (FIGO stage III/IV). METHODS: mRNA expression levels of KLK13 and KLK14 were assessed by quantitative PCR in tumor tissue of 91 patients and related with clinical factors and patients' outcome...
March 15, 2018: Journal of Cancer Research and Clinical Oncology
Minjing Zou, Ali S Alzahrani, Ali Al-Odaib, Mohammad A Alqahtani, Omer Babiker, Roua A Al-Rijjal, Huda A BinEssa, Walaa E Kattan, Anwar F Al-Enezi, Ali Al Qarni, Manar S A Al-Faham, Essa Y Baitei, Afaf Alsagheir, Brian F Meyer, Yufei Shi
Context: Congenital hypothyroidism (CH) is the most common neonatal endocrine disorder, affecting one in 3000-4000 newborns. Since the introduction of a newborn screening program in 1988, more than 300 cases have been identified. The underlying genetic defects have not been systematically studied. Objective: To identify mutation spectrum of CH-causing genes. Methods: Fifty-five patients from 47 families were studied by next-generation-exome sequencing...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Hidejiro Torigoe, Hiromasa Yamamoto, Masakiyo Sakaguchi, Chen Youyi, Kei Namba, Hiroki Sato, Kazuhiko Shien, Junichi Soh, Ken Suzawa, Shuta Tomida, Kazunori Tsukuda, Shinichiro Miyoshi, Shinichi Toyooka
Epidermal growth factor receptor (EGFR) is a member of the ErbB (HER) family that is known to play important roles in the pathogenesis of various human cancers. Mutations of the EGFR gene are commonly found as oncogenic driver mutations, and have been targeted for treatment in non-small cell lung cancer (NSCLC). Leucine-rich repeat and immunoglobulin-like domain protein-1 (LRIG1) is a cell-surface protein that is known as a negative regulator of the ErbB (HER) family. In this study, we first confirmed that the expression levels of LRIG1 were much lower in NSCLC than in non-malignant cells or tissues...
March 13, 2018: Carcinogenesis
Cécile Vors, Charles Couillard, Marie-Eve Paradis, Iris Gigleux, Johanne Marin, Marie-Claude Vohl, Patrick Couture, Benoît Lamarche
Background: High-fat meals induce postprandial inflammation. Resveratrol is a polyphenol known to prevent comorbidities associated with cardiovascular disease and exerts an anti-inflammatory action. There is also an increasing body of evidence supporting the role of curcumin, a polyphenol from the curcuminoid family, as a modulator of proinflammatory processes. Objective: The objectives of this study were to investigate the following: 1) the bioavailability of resveratrol consumed in combination with curcumin after consumption of a high-fat meal; and 2) the acute combined effects of this combination on the postprandial inflammatory response of subjects with abdominal obesity...
March 1, 2018: Journal of Nutrition
Lei Zhang, Jie Ren, Peidian Shi, Dong Lu, Chengxue Zhao, Yanxin Su, Lilin Zhang, Jinhai Huang
B4GALT5, also known as β-1, 4 galactosyltransferase V, is one of the members of β-1, 4 galactosyltransferase gene (B4GALT) family, which was concerned with embryonic development, tumor generation, other malignant diseases. In this study, we firstly cloned porcine B4GALT (pB4GALT5) from porcine alveolar macrophages, and predicted the structural domain and function of seven porcine β-1, 4 galactosyltransferase (I-VII) based on transcriptome analysis of PRRSV infected cells. Additionally, the upregulated porcine B4GALT5 expression was detected from PRRSV infected porcine alveolar macrophage (PAM) cells...
2018: Frontiers in Cellular and Infection Microbiology
Muhammad Khairi Ahmad, Nur Ainina Abdollah, Nurul Husna Shafie, Narazah Mohd Yusof, Siti Razila Abdul Razak
Mitogen-activated protein kinases (MAPKs) are the main regulators of cellular proliferation, growth, and survival in physiological or pathological conditions. Aberrant MAPK signaling plays a pivotal role in carcinogenesis, which leads to development and progression of human cancer. Dual-specificity phosphatase 6 (DUSP6), a member of the MAPK phosphatase family, interacts with specifically targeted extracellular signal-regulated kinase 1/2 via negative feedback regulation in the MAPK pathway of mammalian cells...
February 2018: Cancer Biology & Medicine
Milad Moloudizargari, Esmaeil Mortaz, Mohammad Hossein Asghari, Ian M Adcock, Frank A Redegeld, Johan Garssen
Omega-3 polyunsaturated fatty acids (PUFAs) have well established anti-cancer properties. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are among this biologically active family of macromolecules for which various anti-cancer effects have been explained. These PUFAs have a high safety profile and can induce apoptosis and inhibit growth of cancer cells both in vitro and in vivo , following a partially selective manner. They also increase the efficacy of chemotherapeutic agents by increasing the sensitivity of different cell lines to specific anti-neoplastic drugs...
February 20, 2018: Oncotarget
Shibao Wang, Yinghui Huang, Xupeng Mu, Tianyang Qi, Sha Qiao, Zhenxia Lu, Hongjun Li
The present study aimed to explore whether culture method had an influence on DNA methylation in colorectal cancer (CRC). In the present study, CRC cells were cultured in two-dimensional (2D), three-dimensional (3D) and mouse orthotopic transplantation (Tis) cultures. Principal component analysis (PCA) was used for global visualization of the three samples. A Venn diagram was applied for intersection and union analysis for different comparisons. The methylation condition of 5'-C-phosphate-G-3' (CpG) location was determined using unsupervised clustering analysis...
April 2018: Experimental and Therapeutic Medicine
Ron Stauder, Ralf Welsch, Maurizio Camagna, Wouter Kohlen, Gerd U Balcke, Alain Tissier, Michael H Walter
Strigolactones (SLs) are apocarotenoid phytohormones synthesized from carotenoid precursors. They are produced most abundantly in roots for exudation into the rhizosphere to cope with mineral nutrient starvation through support of root symbionts. Abscisic acid (ABA) is another apocarotenoid phytohormone synthesized in roots, which is involved in responses to abiotic stress. Typically low carotenoid levels in roots raise the issue of precursor supply for the biosynthesis of these two apocarotenoids in this organ...
2018: Frontiers in Plant Science
Hao Zhang, Mengmeng Feng, Yi Feng, Zhaode Bu, Ziyu Li, Shuqin Jia, Jiafu Ji
Gastric cancer is one of the leading causes of cancer-related deaths worldwide. Among which, about 1%-3% of gastric cancer patients were characterized by inherited gastric cancer predisposition syndromes, knowing as hereditary diffuse gastric cancer (HDGC). Studies reported that CDH1 germline mutations are the main cause of HDGC. With the help of rapid development of genetic testing technologies and data analysis tools, more and more researchers focus on seeking candidate susceptibility genes for hereditary cancer syndromes...
February 2018: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
Alina Fedoseienko, Melinde Wijers, Justina C Wolters, Daphne Dekker, Marieke Smit, Nicolette Huijkman, Niels Kloosterhuis, Helene Klug, Aloys Schepers, Ko Willems van Dijk, Johannes H Levels, Daniel D Billadeau, Marten H Hofker, Jan van Deursen, Marit Westerterp, Ezra Burstein, Jan Albert Kuivenhoven, Bart van de Sluis
<u>Rationale:</u> <u>CO</u> pper<u>M</u>etabolism<u>M</u>URR1 Domain-containing (COMMD) proteins are a part of the COMMD-CCDC22-CCDC93 (CCC) complexes facilitating endosomal trafficking of cell surface receptors. Hepatic COMMD1 inactivation decreases CCDC22 and CCDC93 protein levels, impairs the recycling of the low-density lipoprotein receptor (LDLR), and increases plasma LDL cholesterol levels in mice. However, whether any of the other COMMD members function similarly as COMMD1, and whether perturbation in the CCC complex promotes atherogenesis remain unclear...
March 15, 2018: Circulation Research
Gözde Yeşil, Ayşe Aralaşmak, Enes Akyüz, Dilara İçağasıoğlu, Türkan Uygur Şahin, Yavuz Bayram
BACKGROUND: The KCNMA1 gene encodes the α-subunit of the large conductance, voltage and calcium-sensitive potassium channel (BK channels) which plays an important role in neuronal excitability. Heterozygous mutations in KCNMA1 were firstly described in a large family with generalized epilepsy and paroxysmal nonkinesigenic dyskinesia. Recently, homozygous KCNMA1 mutations were reported to cause a phenotype of cerebellar atrophy, developmental delay and seizures. CASE REPORT: Herein; we report a patient with a novel homozygous truncating mutation in KCNMA1 (p...
March 16, 2018: Balkan Medical Journal
Swati Jaiswal, Kishore K Srivastava
Mycobacterium tuberculosis (MTB) is a successful pathogen which increases persistence inside the host macrophage by subverting its defence mechanism. Mycobacteria regulate the pathogenesis and intracellular survival by controlling its interaction with host protein(s). Galectin 3 is a member of the β-galactoside binding gene family which is involved in several biological functions. In the present study we have expressed the mycobacterial protein tyrosine kinase (PtkA) in the cytosol of host macrophages through a eukaryotic promoter vector and found that it down-regulates Galectin 3...
March 12, 2018: Biochemical and Biophysical Research Communications
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