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https://www.readbyqxmd.com/read/29774127/paf1-complex-interactions-with-setdb1-mediate-promoter-h3k9-methylation-and-transcriptional-repression-of-hoxa9-and-meis1-in-acute-myeloid-leukemia
#1
James Ropa, Nirmalya Saha, Zhiling Chen, Justin Serio, Wei Chen, Dattatreya Mellacheruvu, Lili Zhao, Venkatesha Basrur, Alexey I Nesvizhskii, Andrew G Muntean
The Polymerase Associated Factor 1 complex (PAF1c) is an epigenetic co-modifying complex that directly contacts RNA polymerase II (RNAPII) and several epigenetic regulating proteins. Mutations, overexpression and loss of expression of subunits of the PAF1c are observed in various forms of cancer suggesting proper regulation is needed for cellular development. However, the biochemical interactions with the PAF1c that allow dynamic gene regulation are unclear. We and others have shown that the PAF1c makes a direct interaction with MLL fusion proteins, which are potent oncogenic drivers of acute myeloid leukemia (AML)...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773604/transcriptional-activities-of-dux4-fusions-in-b-cell-acute-lymphoblastic-leukemia
#2
Yosuke Tanaka, Masahito Kawazu, Takahiko Yasuda, Miki Tamura, Fumihiko Hayakawa, Shinya Kojima, Toshihide Ueno, Hitoshi Kiyoi, Tomoki Naoe, Hiroyuki Mano
No abstract text is available yet for this article.
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29773426/stem-cell-transcription-factor-sox2-in-synovial-sarcoma-and-other-soft-tissue-tumors
#3
Heba Zayed, Iver Petersen
BACKGROUND: SOX2 has gained considerable interest as a pluripotency inducing gene. Co-transfection of SOX2 together with NANOG, KLF4 and c-MYC into adult fibroblasts was able to generate pluripotent stem cells. SOX2 has been reported to be expressed in synovial sarcoma, a tumor being characterized by the SS18-SSX gene fusion forming part of the SWI/SNF chromatin remodeling complex that affects histone methylation. The role of SOX2 in this tumor type as well as other soft tissue tumor entities however is still poorly characterized...
May 4, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29773172/seleno-l-methionine-and-l-ascorbic-acid-differentiate-the-biological-activity-of-doxorubicin-and-its-metal-complexes-as-a-new-anticancer-drugs-candidate
#4
Marzena Matejczyk, Grzegorz Świderski, Renata Świsłocka, Stanisław Józef Rosochacki, Włodzimierz Lewandowski
The most important problems of anti-cancer therapy include the toxicity of the drugs applied to healthy cells and the multi-drug cells resistance to chemotherapeutics. One of the most commonly used anticancer drugs is doxorubicin (DOX) used to treat certain leukemias and non-Hodgkin's lymphomas, as well as bladder, breast, stomach, lung, ovarian, thyroid, multiple myeloma and other cancers. Preliminary studies showed that metal complex with DOX improve its cytostatic activity with changes in their molecular structure and distribution of electrons, resulting in a substantial change of its biological activity (including antitumor activity)...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29769567/genomic-alterations-of-ground-glass-nodular-lung-adenocarcinoma
#5
Hyun Lee, Je-Gun Joung, Hyun-Tae Shin, Duk-Hwan Kim, Yujin Kim, Hojoong Kim, O Jung Kwon, Young Mog Shim, Ho Yun Lee, Kyung Soo Lee, Yoon-La Choi, Woong-Yang Park, D Neil Hayes, Sang-Won Um
In-depth molecular pathogenesis of ground-glass nodular lung adenocarcinoma has not been well understood. The objectives of this study were to identify genomic alterations in ground-glass nodular lung adenocarcinomas and to investigate whether viral transcripts were detected in these tumors. Nine patients with pure (n = 4) and part-solid (n = 5) ground-glass nodular adenocarcinomas were included. Six were females with a median age of 58 years. We performed targeted exon sequencing and RNA sequencing...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29766758/anti-inflammatory-peptide-attenuates-edema-and-promotes-bmp-2-induced-bone-formation-in-spine-fusion
#6
Juliane D Glaeser, Khosrowdad Salehi, Linda Kanim, Dmitriy Sheyn, Zachary NaPier, Phillip Behrens, Leslie Garcia, Jason M Cuéllar, Hyun W Bae
Recombinant human bone morphogenic protein-2 (BMP-2) loaded absorbable collagen sponges (ACS) have been successfully used to enhance bone formation and to induce spinal fusion in humans. However, side effects, such as soft-tissue edema and inflammation, have been reported. NEMO binding domain peptide (NBD) inhibits activation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), a central regulator of immune response. In this study, we investigated NBD's potential to reduce BMP-2-induced soft-tissue inflammation without affecting BMP-2-mediated spinal fusion in rat...
May 16, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29766244/copy-number-of-arsr-reporter-plasmid-determines-its-arsenite-response-and-metal-specificity
#7
Yun Fang, Chunjie Zhu, Xingjuan Chen, Yan Wang, Meiying Xu, Guoping Sun, Jun Guo, Jinnon Yoo, Cuijuan Tie, Xin Jiang, Xianqiang Li
The key component in bacteria-based biosensors is a transcriptional reporter employed to monitor induction or repression of a reporter gene corresponding to environmental change. In this study, we made a series of reporters in order to achieve highly sensitive detection of arsenite. From these reporters, two biosensors were developed by transformation of Escherichia coli DH5α with pLHPars9 and pLLPars9, consisting of either a high or low copy number plasmid, along with common elements of ArsR-luciferase fusion and addition of two binding sequences, one each from E...
May 16, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29765503/oleuropein-aglycone-protects-against-mao-a-induced-autophagy-impairment-and-cardiomyocyte-death-through-activation-of-tfeb
#8
Caterina Miceli, Yohan Santin, Nicola Manzella, Raffaele Coppini, Andrea Berti, Massimo Stefani, Angelo Parini, Jeanne Mialet-Perez, Chiara Nediani
Age-associated diseases such as neurodegenerative and cardiovascular disorders are characterized by increased oxidative stress associated with autophagy dysfunction. Oleuropein aglycone (OA), the main polyphenol found in olive oil, was recently characterized as an autophagy inducer and a promising agent against neurodegeneration. It is presently unknown whether OA can have beneficial effects in a model of cardiac stress characterized by autophagy dysfunction. Here, we explored the effects of OA in cardiomyocytes with overexpression of monoamine oxidase-A (MAO-A)...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29764408/congenital-rhabdomyosarcoma-a-different-clinical-presentation-in-two-cases
#9
Ida Russo, Virginia Di Paolo, Carmelo Gurnari, Angela Mastronuzzi, Francesca Del Bufalo, Pier Luigi Di Paolo, Angela Di Giannatale, Renata Boldrini, Giuseppe Maria Milano
BACKGROUND: Rhabdomyosarcoma (RMS), one of the most common soft tissue sarcomas of childhood, is very rare in the neonatal period (0.4-2% of cases). In order to gain a deeper understanding of this disease at such age, patient and tumor features, as well as treatment modality and outcome need to be reported. CASE PRESENTATION: We describe two cases with congenital RMS treated at Bambino Gesù Children's Hospital between 2000 and 2016. They represent only 2.24% of all RMS patients diagnosed during that period in our Institution; this data is in agreement with the incidence reported in the literature...
May 15, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29760775/a-downstream-box-fusion-allows-stable-accumulation-of-a-bacterial-cellulase-in-chlamydomonas-reinhardtii-chloroplasts
#10
Lubna V Richter, Huijun Yang, Mohammad Yazdani, Maureen R Hanson, Beth A Ahner
Background: We investigated strategies to improve foreign protein accumulation in the chloroplasts of the model algae Chlamydomonas reinhardtii and tested the outcome in both standard culture conditions as well as one pertinent to algal biofuel production. The downstream box (DB) of the TetC or NPTII genes, the first 15 codons following the start codon, was N -terminally fused to the coding region of cel6A , an endoglucanase from Thermobifida fusca . We also employed a chimeric regulatory element, consisting of the 16S rRNA promoter and the atpA 5'UTR, previously reported to enhance protein expression, to regulate the expression of the TetC- cel6A gene...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29760553/a-favorable-outcome-of-advanced-dermatofibrosarcoma-protuberans-under-treatment-with-sunitinib-after-imatinib-failure
#11
Wei Xiao, Yi Que, Ruiqing Peng, Ya Ding, Jingjing Zhao, Xizhi Wen, Desheng Weng, Xiaoshi Zhang, Yuanxiang Guan, Xing Zhang
While traditional cytotoxic agents play a limited role in advanced dermatofibrosarcoma protuberans (DFSP), the treatment of sunitinib for patients with advanced DFSP after imatinib failure is not well defined. The objective of this case report was to analyze the relationship between molecular mechanisms and clinical outcomes of sunitinib treatment in patients with advanced DFSP after imatinib failure. In this case report, a 37-year-old man suffered from advanced DFSP progression after surgical operation, microwave ablation, and chemotherapy...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29758548/stromal-cell-derived-factor-sdf-1-alpha-overexpression-promotes-bone-regeneration-by-osteogenesis-and-angiogenesis-in-osteonecrosis-of-the-femoral-head
#12
Fan Yang, Feng Xue, Junjie Guan, Zeng Zhang, Jimin Yin, Qingling Kang
BACKGROUND/AIMS: Osteonecrosis of the femoral head (ONFH) is a devastating orthopedic disease. Previous studies suggested that stromal-cell-derived factor (SDF)-1 was involved in osteogenesis and angiogenesis. However, whether SDF-1 potentiates the angiogenesis and osteogenesis of bone marrow-derived stromal stem cells (BMSCs) in ONFH is not clear. METHODS: BMSCs were transfected with green fluorescent protein (GFP) or the fusion gene encoding GFP and SDF-1α, and transgenic efficacy was monitored by immunofluorescence...
May 7, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29757967/epigenetics-of-subcellular-structure-functioning-in-the-origin-of-risk-or-resilience-to-comorbidity-of-neuropsychiatric-and-cardiometabolic-disorders
#13
REVIEW
Carlos Manuel Zapata-Martín Del Campo, Martín Martínez-Rosas, Verónica Guarner-Lans
Mechanisms controlling mitochondrial function, protein folding in the endoplasmic reticulum (ER) and nuclear processes such as telomere length and DNA repair may be subject to epigenetic cues that relate the genomic expression and environmental exposures in early stages of life. They may also be involved in the comorbid appearance of cardiometabolic (CMD) and neuropsychiatric disorders (NPD) during adulthood. Mitochondrial function and protein folding in the endoplasmic reticulum are associated with oxidative stress and elevated intracellular calcium levels and may also underlie the vulnerability for comorbid CMD and NPD...
May 14, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29754229/designed-transcriptional-regulation-in-mammalian-cells-based-on-tale-and-crispr-dcas9
#14
Tina Lebar, Roman Jerala
Transcriptional regulation lies at the center of many cellular processes and is the result of cellular response to different external and internal signals. Control of transcription of selected genes enables an unprecedented access to shape the cellular response. While orthogonal transcription factors from bacteria, yeast, plants, or other cells have been used to introduce new cellular logic into mammalian cells, the discovery of designable modular DNA binding domains, such as Transcription Activator-Like Effectors (TALEs) and the CRISPR system, enable targeting of almost any selected DNA sequence...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29751751/primary-synovial-sarcoma-of-the-kidney-a-case-report-of-complete-pathological-response-at-a-lebanese-tertiary-care-center
#15
Alissar El Chediak, Deborah Mukherji, Sally Temraz, Samer Nassif, Sara Sinno, Rami Mahfouz, Ali Shamseddine
BACKGROUND: Primary synovial sarcoma of the kidney is a rare type of soft tissue sarcoma. Its presenting features can resemble those of other renal tumors; rendering its early diagnosis, a dilemma. Several cases of renal synovial sarcoma have been reported in the literature with varying treatment options and outcomes. This article describes a rare case of primary renal synovial sarcoma and reviews all cases in the literature. CASE PRESENTATION: A 26-year-old male presented with flank pain and hematuria...
May 11, 2018: BMC Urology
https://www.readbyqxmd.com/read/29751400/2-3-7-8-tetrachlorodibenzo-p-dioxin-induces-alterations-in-myogenic-differentiation-of-c2c12-cells
#16
Heidi Q Xie, Yingjie Xia, Tuan Xu, Yangsheng Chen, Hualing Fu, Yunping Li, Yali Luo, Li Xu, Karl W K Tsim, Bin Zhao
Dioxin-induced toxicities that affect the development of the motor system have been proposed since many years. However, cellular evidence and the molecular basis for the effects are limited. In this study, a cultured mouse myoblast cell line, C2C12, was utilized to examine the effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on myogenic differentiation and expression of acetylcholinesterase (AChE), a neuromuscular transmission-related gene. The results showed that TCDD exposure at 10-10  M repressed the myotube formation of C2C12 cells by disturbing the fusion process and suppressing the expression of myosin heavy chain, a myobute structural protein, and not by induction of cytotoxicity...
April 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29748621/proteomic-profiling-identifies-key-coactivators-utilized-by-mutant-er%C3%AE-proteins-as-potential-new-therapeutic-targets
#17
Leah A Gates, Guowei Gu, Yue Chen, Aarti D Rohira, Jonathan T Lei, Ross A Hamilton, Yang Yu, David M Lonard, Jin Wang, Shu-Ping Wang, David G Edwards, Philip F Lavere, Jiangyong Shao, Ping Yi, Antrix Jain, Sung Yun Jung, Anna Malovannaya, Shunqiang Li, Jieya Shao, Robert G Roeder, Matthew J Ellis, Jun Qin, Suzanne A W Fuqua, Bert W O'Malley, Charles E Foulds
Approximately 75% of breast cancers are estrogen receptor alpha (ERα)-positive and are treatable with endocrine therapies, but often patients develop lethal resistant disease. Frequent mutations (10-40%) in the ligand-binding domain (LBD) codons in the gene encoding ERα (ESR1) have been identified, resulting in ligand-independent, constitutively active receptors. In addition, ESR1 chromosomal translocations can occur, resulting in fusion proteins that lack the LBD and are entirely unresponsive to all endocrine treatments...
May 11, 2018: Oncogene
https://www.readbyqxmd.com/read/29745555/-establishment-and-identification-of-human-cervical-cancer-cell-line-c33a-stably-expressing-human-papillomavirus-type-58-e6e7-fusion-gene
#18
Chaoying Jia, Weihong Ma, He Wang
The study was performed to construct a human cervical cancer cell line C33A which can stably express HPV58E6E7 fusion gene. Firstly, C33A cells were transfected with the recombinant lentivirus LV-HPV58E6E7 which contained HPV58E6E7 fusion gene, and the stably transfected cells (LV-HPV58E6E7/C33A) were screened out by flow cytometry. MTT was used to observe the growth of LV-HPV58E6E7/C33A cells and flow cytometry was carried out to detect the cell cycle. LV-HPV58E6E7/C33A cells were inoculated into the left armpits of nude mice...
August 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29743725/ufd1-contributes-to-myc-mediated-leukemia-aggressiveness-through-suppression-of-the-proapoptotic-unfolded-protein-response
#19
L N Huiting, Y Samaha, G L Zhang, J E Roderick, B Li, N M Anderson, Y W Wang, L Wang, Fjf Laroche, J W Choi, C T Liu, M A Kelliher, H Feng
Despite the pivotal role of MYC in tumorigenesis, the mechanisms by which it promotes cancer aggressiveness remain incompletely understood. Here, we show that MYC transcriptionally upregulates the ubiquitin fusion degradation 1 (UFD1) gene in T-cell acute lymphoblastic leukemia (T-ALL). Allelic loss of ufd1 in zebrafish induces tumor cell apoptosis and impairs MYC-driven T-ALL progression but does not affect general health. As the E2 component of an endoplasmic reticulum (ER)-associated degradation (ERAD) complex, UFD1 facilitates the elimination of misfolded/unfolded proteins from the ER...
April 25, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29743405/-recurrent-spi1-fusions-in-pediatric-t-cell-acute-lymphoblastic-leukemia-novel-mutations-with-poor-prognosis
#20
Masafumi Seki, Junko Takita
The outcome of treatment-refractory and/or relapsed pediatric T-cell acute lymphoblastic leukemia (T-ALL) is extremely poor, and the genetic basis of these cases remains poorly understood. Here, we report comprehensive profiling of 121 cases of pediatric T-ALL using RNA sequencing and/or targeted capture sequencing through which we identified new recurrent gene fusions involving SPI1 (STMN1-SPI1 and TCF7-SPI1). Cases positive for fusions involving SPI1 (encoding PU.1), which accounted for 3.9% (7/181) of the total examined pediatric T-ALL cases, had uniformly poor overall survival...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
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