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Tian-Ze Ma, Zhe Piao, Sheng-Yu Jin, Yong-Geun Kwak
The exact cause instigating multiple myeloma (MM) has not been fully elucidated, and the disease has a median survival of 6 months without any treatment. To identify potential biomarkers of MM, serum proteins reflecting alteration in their proteomes were analyzed in 6 patients with MM compared with 6 healthy controls using two-dimensional electrophoresis (2-DE) and matrix-assisted laser desorption/ionization time-of flight mass spectrometry. The most notable differentially expressed proteins were validated by immunoblotting and changes in mRNA expression were evaluated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR)...
January 2019: Experimental and Therapeutic Medicine
Nathalie Kreins, Rachel Buffin, Diane Michel-Molnar, Veronique Chambon, Pierre Pradat, Jean-Charles Picaud
Background: Fortification of human milk (HM) increases its osmolality, which is associated with an increased risk of necrotizing enterocolitis. The impact of new fortifiers on osmolality is not well-known, nor are the kinetics regarding the increase in osmolality. Aim: To determine the optimum fortifier composition for HM fortification by measuring the osmolality of fortified HM made with three powder multicomponent fortifiers (MCFs) and a protein fortifier (PF). Methods: The osmolality of HM was assessed at 2 (H2) and 24 (H24) h after fortification to compare the effects of MCF (MCF1-3) and PF used in quantities that ensured that infants' nutrient needs would be met (MCF: 4 g/100 ml HM; PF: 0...
2018: Frontiers in Pediatrics
Michael Thomaschewski, Kristoffer Riecken, Ludmilla Unrau, Tassilo Volz, Kerstin Cornils, Harald Ittrich, Denise Heim, Henning Wege, Ercan Akgün, Marc Lütgehetmann, Jan Dieckhoff, Michael Köpke, Maura Dandri, Daniel Benten, Boris Fehse
We recently introduced red-green-blue (RGB) marking for clonal cell tracking based on individual color-coding. Here, we applied RGB marking to study clonal development of liver tumors. Immortalized, non-tumorigenic human fetal hepatocytes expressing the human telomerase reverse transcriptase (FH-hTERT) were RGB-marked by simultaneous transduction with lentiviral vectors encoding mCherry, Venus, and Cerulean. Multi-color fluorescence microscopy was used to analyze growth characteristics of RGB-marked FH-hTERT in vitro and in vivo after transplantation into livers of immunodeficient mice with endogenous liver damage (uPA/SCID)...
December 29, 2017: Oncotarget
Nora Knoblich, Friederike Gundel, Christof Brückmann, Julia Becker-Sadzio, Christian Frischholz, Vanessa Nieratschker
Borderline personality disorder (BPD) is a severe and complex mental disease associated with high suicidal tendencies and hospitalization rates. Accumulating evidence suggests that epigenetic mechanisms are implicated in the etiology of BPD. A recent epigenome-wide study identified several novel genes which are epigenetically dysregulated in BPD. Those genes include APBA3 and MCF2. Psychotherapy such as Dialectical Behavior Therapy (DBT), an established treatment for BPD, provides an excellent setting to investigate environmental influences on epigenetic mechanisms in order to identify biomarkers for disease status and therapy success...
February 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
Milene Zezzi do Valle Gomes, Anders E C Palmqvist
Formaldehyde dehydrogenase (FaldDH) is used as a catalyst to reduce formate to formaldehyde in a cascade reaction to convert CO2 to methanol. This enzyme, however, has low activity and is sensitive to substrate/product concentration and pH. To improve the performance of FaldDH, it can be immobilized through physical adsorption in siliceous mesostructured cellular foams (MCF), which physical properties are suitable for the immobilization of large molecules as FaldDH (molecular size of 8.6 × 8.6 × 19 nm)...
March 1, 2018: Colloids and Surfaces. B, Biointerfaces
Daniela Gerovska, Marcos J Araúzo-Bravo
STUDY HYPOTHESIS: Does primordial germ cell (PGC) activation start before mouse embryo implantation, and does the possible regulation of the DNA (cytosine-5-)-methyltransferase 3-like (Dnmt3l) by transcription factor AP-2, gamma (TCFAP2C) have a role in this activation and in the primitive endoderm (PE)-epiblast (EPI) lineage specification? STUDY FINDING: A burst of expression of PGC markers, such as Dppa3/Stella, Ifitm2/Fragilis, Fkbp6 and Prdm4, is observed from embryonic day (E) 3...
March 2016: Molecular Human Reproduction
Bashar Ibrahim
Correct DNA segregation is a fundamental process that ensures the precise and reliable inheritance of genomic information for the propagation of cell life. Eukaryotic cells have evolved a conserved surveillance control mechanism for DNA segregation named the Spindle Assembly Checkpoint (SAC).The SAC ensures that the sister chromatids of the duplicated genome are not separated and distributed to the spindle poles before all chromosomes have been properly linked to the microtubules of the mitotic spindle. Biochemically, the SAC delays cell cycle progression by preventing activation of the anaphase-promoting complex (APC/C) or cyclosome whose activation by Cdc20 is required for sister-chromatid separation; this marks the transition into anaphase...
May 2015: Omics: a Journal of Integrative Biology
Karen V Ambrose, Albrecht M Koppenhöfer, Faith C Belanger
Horizontal gene transfer is recognized as an important factor in genome evolution, particularly when the newly acquired gene confers a new capability to the recipient species. We identified a gene similar to the makes caterpillars floppy (mcf1 and mcf2) insect toxin genes in Photorhabdus, bacterial symbionts of nematodes, in the genomes of the Epichloë fungi, which are intercellular symbionts of grasses. Infection by Epichloë spp. often confers insect resistance to the grass hosts, largely due to the production of fungal alkaloids...
2014: Scientific Reports
Stefanie Teschler, Marek Bartkuhn, Natascha Künzel, Christian Schmidt, Steffen Kiehl, Gerhard Dammann, Reinhard Dammann
Borderline personality disorder (BPD) is a complex psychiatric disease with an increased impact in the last years. While the diagnosis and therapy are well established, little is known on the pathogenesis of borderline personality disorder. Previously, a significant increase in DNA methylation of relevant neuropsychiatric genes in BPD patients has been reported. In our study we performed genome wide methylation analysis and revealed specific CpG sites that exhibited increased methylation in 24 female BPD patients compared to 11 female healthy controls...
2013: PloS One
Takashi Hayashi, Tomoyuki Yoshida, Moonjin Ra, Ryo Taguchi, Masayoshi Mishina
Interleukin-1 receptor accessory protein-like 1 (IL1RAPL1) is associated with X-linked mental retardation and autism spectrum disorder. We found that IL1RAPL1 regulates synapse formation of cortical neurons. To investigate how IL1RAPL1 controls synapse formation, we here screened IL1RAPL1-interacting proteins by affinity chromatography and mass spectroscopy. IL1RAPL1 interacted with Mcf2-like (Mcf2l), a Rho guanine nucleotide exchange factor, through the cytoplasmic Toll/IL-1 receptor domain. Knockdown of endogenous Mcf2l and treatment with an inhibitor of Rho-associated protein kinase (ROCK), the downstream kinase of RhoA, suppressed IL1RAPL1-induced excitatory synapse formation of cortical neurons...
2013: PloS One
Aldo Di Luccia, Gianluca Picariello, Giuseppina Cacace, Andrea Scaloni, Michele Faccia, Vitantonio Liuzzi, Giovanna Alviti, Salvatore Spagna Musso
The myofibrillar fraction of raw ham muscles and dry-cured hams with different ripening times was extracted in denaturing and reducing conditions and subjected to two-dimensional gel electrophoresis. The two-dimensional maps gave overall pictures of the already noted progressive disappearance of actin, tropomyosin and myosin light chains during ripening. In addition, two fragments from Myosin Heavy Chain proteolysis, marked as myosin chain fragments MCF1 and MCF2, were identified by immunodetection and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS)...
March 2005: Meat Science
A Piton, J Gauthier, F F Hamdan, R G Lafrenière, Y Yang, E Henrion, S Laurent, A Noreau, P Thibodeau, L Karemera, D Spiegelman, F Kuku, J Duguay, L Destroismaisons, P Jolivet, M Côté, K Lachapelle, O Diallo, A Raymond, C Marineau, N Champagne, L Xiong, C Gaspar, J-B Rivière, J Tarabeux, P Cossette, M-O Krebs, J L Rapoport, A Addington, L E Delisi, L Mottron, R Joober, E Fombonne, P Drapeau, G A Rouleau
Autism spectrum disorder (ASD) and schizophrenia (SCZ) are two common neurodevelopmental syndromes that result from the combined effects of environmental and genetic factors. We set out to test the hypothesis that rare variants in many different genes, including de novo variants, could predispose to these conditions in a fraction of cases. In addition, for both disorders, males are either more significantly or more severely affected than females, which may be explained in part by X-linked genetic factors. Therefore, we directly sequenced 111 X-linked synaptic genes in individuals with ASD (n = 142; 122 males and 20 females) or SCZ (n = 143; 95 males and 48 females)...
August 2011: Molecular Psychiatry
Qingmei Zheng, Yuhua Shi, Zongli Yang, Xinghua Xu, Laicheng Wang, Fuzhong Xue, Harvest F Gu, Zi-Jiang Chen
OBJECTIVE: The aim of the study was to determine the association between three single nucleotide polymorphism (SNP) variants (rs35368790, rs35069869 and rs684846) of the MCF2 cell line-derived transforming sequence-like 2 (MCF2L2) gene and polycystic ovary syndrome (PCOS) in PCOS family trios. METHODS: Genotyping was done by TaqMan assay that incorporates minor groove-binding probe technology for allelic discrimination. One hundred and fifty-two unrelated PCOS probands and their biological parents were recruited...
2009: Gynecologic and Obstetric Investigation
Esther Eytan, Ilana Braunstein, Dvora Ganoth, Adar Teichner, James C Hittle, Tim J Yen, Avram Hershko
The mitotic checkpoint system ensures the fidelity of chromosome segregation by preventing the completion of mitosis in the presence of any misaligned chromosome. When activated, it blocks the initiation of anaphase by inhibiting the ubiquitin ligase anaphase-promoting complex/cyclosome (APC/C). Little is known about the biochemical mechanisms by which this system inhibits APC/C, except for the existence of a mitotic checkpoint complex (MCC) inhibitor of APC/C composed of the APC/C activator Cdc20 associated with the checkpoint proteins Mad2, BubR1, and Bub3...
July 8, 2008: Proceedings of the National Academy of Sciences of the United States of America
S Mori, M-C Zhang, N Tanda, F Date, M Nose, H Furukawa, M Ono
BACKGROUND: The spontaneous onset of macroscopic arthropathy in the ankle of the particular F1 mice descended from two Fas-deficient strains of mice; a mutant substrain of MRL/Mp.Fas(lpr) (MRL/rpl) and C3H/He.Fas(lpr) (C3H/lpr) was recently observed. AIM: To histopathologically characterise and genetically interpret the unique inheritance mode of disease in this arthropathy model. METHODS: MRL/rpl, C3H/lpr, (MRL/rpl x C3H/lpr; MC) F1, (C3H/lpr x MRL/rpl; CM) F1 and MCF2 mice were bred under specific pathogen-free conditions...
October 2006: Annals of the Rheumatic Diseases
Neil H Segal, Nathalie E Blachere, Jose A Guevara-Patiño, Humilidad F Gallardo, Ho Yin A Shiu, Agnes Viale, Cristina R Antonescu, Jedd D Wolchok, Alan N Houghton
Cancer-testis or germ cell antigens (GCAs) are a category of tumor antigens expressed by male germ cells and by cancers of diverse histological origin, but not usually by normal adult somatic tissue. These antigens include products encoded by the MAGE, BAGE, GAGE, SSX, and LAGE/NY-ESO-1 families that encode antigenic peptides recognized by T lymphocytes. In this study, we exploit oligonucleotide technology to identify genes in melanoma and soft tissue sarcoma (STS) that display a cancer-testis/GCA expression profile...
February 1, 2005: Cancer Immunity
M Andrew Nesbit, Michael R Bowl, Brian Harding, David Schlessinger, Michael P Whyte, Rajesh V Thakker
X-linked hypoparathyroidism (HPT) has been mapped to a 988-kb region on chromosome Xq27 that contains three genes, MCF2/DBL, SOX3, and U7snRNA homologue, and a partial cDNA, AS6. We isolated the full-length AS6 cDNA, determined its genomic organization, and sought for abnormalities in HPT patients. AS6 was identified as the 3' UTR of ATP11C, a novel member of the P-type ATPases, which consists of 31 exons with alternative transcripts. The colocalization of ATP11C with SOX3 and MCF2/DBL on Xq27 mirrors that of ATP11A with SOX1 and MCF2L on 13q34 and ATP11B with SOX2 on 3q26...
December 2004: Genomics
Nicholas R Waterfield, Phillip J Daborn, Andrea J Dowling, Guowei Yang, Michelle Hares, Richard H ffrench-Constant
The Photorhabdus luminescens W14 toxin encoding gene makes caterpillars floppy (mcf) was discovered due to its ability to kill caterpillars when expressed in Escherichia coli. Here we describe a homologue of mcf (renamed as mcf1), termed mcf2, discovered in the same genome. The mcf2 gene predicts another large toxin whose central domain, like Mcf1, also shows limited homology to Clostridium cytotoxin B. However, the N-terminus of Mcf2 shows significant similarity to the type-III secreted effector HrmA from the plant pathogen Pseudomonas syringae and no similarity to the N-terminus of Mcf1...
December 12, 2003: FEMS Microbiology Letters
O Fasano, D Birnbaum, L Edlund, J Fogh, M Wigler
We have developed a sensitive bioassay for transforming genes based on the tumorigenicity of cotransfected NIH3T3 cells in nude mice. The assay differs substantially from the NIH3T3 focus assay. Using it, we have detected the transfer of three transforming genes from the DNA of MCF-7, a human mammary carcinoma cell line. One of these is N-ras, which is amplified in MCF-7 DNA. The other two, which we have called mcf2 and mcf3, do not appear to be related to known oncogenes. We cannot detect their transfer by using the NIH3T3 focus assay...
September 1984: Molecular and Cellular Biology
C Nguyen, M G Mattei, J A Rey, M A Baeteman, J F Mattei, B R Jordan
Seven DNA probes have been mapped within the Xq27-Xq28 region using in situ hybridization, in some cases on chromosomes expressing the fragile site to enhance the resolution. To complement these studies and investigate the relationship between genetic, cytogenetic and physical distance some of these probes were used for large scale mapping using pulsed field gels. Physical linkage was demonstrated between two loci, F9 and MCF2, which are separated by less than 270 kb, and a restriction map extending over 1,300 kb has been generated...
May 1988: American Journal of Medical Genetics
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