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Chromosome translocation

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https://www.readbyqxmd.com/read/28106826/colorectal-carcinoma-a-general-overview-and-future-perspectives-in-colorectal-cancer
#1
REVIEW
Inés Mármol, Cristina Sánchez-de-Diego, Alberto Pradilla Dieste, Elena Cerrada, María Jesús Rodriguez Yoldi
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer-related death. Most cases of CRC are detected in Western countries, with its incidence increasing year by year. The probability of suffering from colorectal cancer is about 4%-5% and the risk for developing CRC is associated with personal features or habits such as age, chronic disease history and lifestyle. In this context, the gut microbiota has a relevant role, and dysbiosis situations can induce colonic carcinogenesis through a chronic inflammation mechanism...
January 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28105201/comparison-of-microrna-expression-profiles-in-k562-cells-derived-microvesicles-and-parental-cells-and-analysis-of-their-roles-in-leukemia
#2
Xiaomei Chen, Wei Xiong, Huiyu Li
Microvesicles (MVs) are 30-1,000-nm extracellular vesicles that are released from a multitude of cell types and perform diverse cellular functions, including intercellular communication, antigen presentation, and transfer of proteins, messenger RNA and microRNA (also known as miR). MicroRNAs have been demonstrated to be aberrantly expressed in leukemia, and the overall microRNA expression profile may differentiate normal blood cells vs. leukemia cells. MVs containing microRNAs may enable intercellular cross-talk in vivo...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105149/t-14-18-q32-q21-in-chronic-lymphocytic-leukemia-patients-report-of-two-cases-and-a-literature-review
#3
Weifeng Chen, Yi Miao, Rong Wang, Yujie Wu, Hairong Qiu, Wei Xu, Jianyong Li, Lei Fan, Xin Xu
The chromosomal abnormality t(14;18)(q32;q21) is most commonly associated with germinal center-derived B-cell lymphomas, particularly follicular lymphoma (FL). Generally, it is considered a hallmark of FL. The t(14;18)(q32;q21) translocation is rare in chronic lymphocytic leukemia (CLL) and its prognostic significance remains unclear. In the present study, two cases of CLL with t(14;18)(q32;q21) were diagnosed using conventional cytogenetic analysis and fluorescence in situ hybridization. Both patients presented with leukemia and the morphological features and immunophenotypes were typical of CLL...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28102624/partial-monosomy-of-10p-and-duplication-of-another-chromosome-in-two-patients
#4
Sayaka Ohta, Tsuyoshi Isojima, Yoko Mizuno, Motohiro Kato, Masakazu Mimaki, Masafumi Seki, Yusuke Sato, Seishi Ogawa, Junko Takita, Sachiko Kitanaka, Akira Oka
Partial monosomy of 10p is a rare chromosomal abnormality. Common features are hypoparathyroidism, deafness, renal anomalies, distinctive facies, and mental retardation, with phenotypic variability. We report two patients with chromosomal abnormalities identified on single-nucleotide polymorphism (SNP) array analysis. Although patient 1 had common features of monosomy10p, G-banding indicated a normal karyotype. SNP array and fluorescence in situ hybridization (FISH), however, indicated unbalanced translocation of a 10p terminal deletion of 11...
January 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28101221/a-complex-translocation-3-17-15-in-acute-promyelocytic-leukemia-confirmed-by-fluorescence-in-situ-hybridization
#5
Yanming Wang, Junjie Ma, Xinguang Liu, Riming Liu, Lingling Xu, Li Wang, Jiannong Cen, Xiaoxia Chu
Acute promyelocytic leukemia (APL) is typified by t(15;17)(q22;q21), generating the promyelocytic leukemia (PML) gene at 15q22 with the retinoic acid α-receptor (RARA) gene at 17q21. The PML-RARA fusion gene is believed to play a vital role in leukemogenesis. A sizeable minority of patients with complex variants of APL have been reported. The present study reports the case of a 33-year-old male with APL carrying a potential complex translocation. The initial symptom was bleeding gums. Chromosomal analysis of the bone marrow cells revealed an atypical 17q aberration...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28099679/clinical-outcomes-for-couples-containing-a-reciprocal-chromosome-translocation-carrier-without-preimplantation-genetic-diagnosis
#6
Biao Yin, Yuanchang Zhu, Tonghua Wu, Shuqiu Shen, Yong Zeng, Desheng Liang
OBJECTIVE: To evaluate the pregnancy outcomes of couples containing a carrier of a reciprocal chromosome translocation (RCT) after assisted reproductive technology without preimplantation genetic diagnosis. METHODS: A retrospective study was performed using data for couples with an RCT carrier and control couples with a normal karyotype (1:4 ratio) who underwent assisted reproductive technology cycles at a Chinese fertility center in 2010-2011. The embryos were fertilized via in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI)...
November 15, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28098396/the-effects-of-chronic-cobalt-and-chromium-exposure-after-metal-on-metal-hip-resurfacing-an-epigenome-wide-association-pilot-study
#7
Julia Steinberg, Karan M Shah, Alison Gartland, Eleftheria Zeggini, J Mark Wilkinson
Metal-on-metal (MOM) hip resurfacing has recently been a popular prosthesis choice for the treatment of symptomatic arthritis, but results in the release of cobalt and chromium ions into the circulation that can be associated with adverse clinical effects. The mechanism underlying these effects remains unclear. While chromosomal aneuploidy and translocations are associated with this exposure, the presence of subtle structural epigenetic modifications in patients with MOM joint-replacements remains unexplored...
January 18, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28092312/synchronous-presentation-of-renal-cell-carcinoma-and-hodgkin-lymphoma-in-an-adolescent
#8
Mohamed Y Elsaid, Kara G Gill, Ankush Gosain, Peter F Nichol, Charles M Leys, Darya Buehler, Catherine P Leith, Neha J Patel
BACKGROUND: Coincidence of renal cell carcinoma (RCC) and hematologic malignancies has been reported in adults but not in children. OBSERVATION: We report a case of a 16-year-old girl in whom RCC was incidentally discovered on the computed tomography scan that was performed to stage her underlying Hodgkin lymphoma. Analysis of constitutional cytogenetics for common genetic aberrations that predispose to RCC did not reveal any mutations or genetic variations. However, cytogenetics on the RCC tumor demonstrated a rare reciprocal translocation between chromosomes 6 and 11, t(6;11)(p21;q12)...
January 13, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28087269/mitochondrial-roles-of-the-psychiatric-disease-risk-factor-disc1
#9
REVIEW
R Norkett, S Modi, J T Kittler
Ion transport during neuronal signalling utilizes the majority of the brain's energy supply. Mitochondria are key sites for energy provision through ATP synthesis and play other important roles including calcium buffering. Thus, tightly regulated distribution and function of these organelles throughout the intricate architecture of the neuron is essential for normal synaptic communication. Therefore, delineating mechanisms coordinating mitochondrial transport and function is essential for understanding nervous system physiology and pathology...
January 10, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28081459/targeted-delivery-of-in-situ-pcr-amplified-sleeping-beauty-transposon-genes-to-cancer-cells-with-lipid-based-nanoparticle-like-protocells
#10
Kun Ma, Duo Fu, Dongli Yu, Changhao Cui, Li Wang, Zhaoming Guo, Chuanbin Mao
A Sleeping Beauty (SB) transposon system is made of a transposon plasmid (containing gene encoding a desired functional or therapeutic protein) and a transposase plasmid (encoding an enzyme capable of cutting and pasting the gene into the host cell genome). It is a kind of natural, nonviral gene delivery vehicle, which can achieve efficient genomic insertion, providing long-term transgenic expression. However, before the SB transposon system could play a role in promoting gene expression, it has to be delivered efficiently first across cell membrane and then into cell nuclei...
January 2, 2017: Biomaterials
https://www.readbyqxmd.com/read/28075445/a-clinical-and-molecular-analysis-of-a-patient-with-emanuel-syndrome
#11
Jin-Wen Luo, Huan Yang, Zhi-Ping Tan, Ming Tu, Hong Luo, Yi-Feng Yang, Li Xie
Emanuel syndrome (ES) is the most frequent type of recurrent non‑Robertsonian translocation that is characterized by numerous anomalies. Over 100 patients with ES have been described in the literature. The phenotype of this syndrome varies but often consists of facial dysmorphism, microcephaly, severe intellectual disability, developmental retardation, congenital heart disease and genital anomalies. The present study describes a 2‑year‑old boy with multiple malformations, including facial dysmorphism, severe intellectual disability, growth retardation, congenital heart disease, cleft lip and palate, genital malformation (micropenis), amblyopia, thymic dysplasia and hearing impairment...
January 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28072833/accurate-breakpoint-mapping-in-apparently-balanced-translocation-families-with-discordant-phenotypes-using-whole-genome-mate-pair-sequencing
#12
Constantia Aristidou, Costas Koufaris, Athina Theodosiou, Mads Bak, Mana M Mehrjouy, Farkhondeh Behjati, George Tanteles, Violetta Christophidou-Anastasiadou, Niels Tommerup, Carolina Sismani
Familial apparently balanced translocations (ABTs) segregating with discordant phenotypes are extremely challenging for interpretation and counseling due to the scarcity of publications and lack of routine techniques for quick investigation. Recently, next generation sequencing has emerged as an efficacious methodology for precise detection of translocation breakpoints. However, studies so far have mainly focused on de novo translocations. The present study focuses specifically on familial cases in order to shed some light to this diagnostic dilemma...
2017: PloS One
https://www.readbyqxmd.com/read/28065413/therapeutic-targeting-of-mll-degradation-pathways-in-mll-rearranged-leukemia
#13
Kaiwei Liang, Andrew G Volk, Jeffrey S Haug, Stacy A Marshall, Ashley R Woodfin, Elizabeth T Bartom, Joshua M Gilmore, Laurence Florens, Michael P Washburn, Kelly D Sullivan, Joaquin M Espinosa, Joseph Cannova, Jiwang Zhang, Edwin R Smith, John D Crispino, Ali Shilatifard
Chromosomal translocations of the mixed-lineage leukemia (MLL) gene with various partner genes result in aggressive leukemia with dismal outcomes. Despite similar expression at the mRNA level from the wild-type and chimeric MLL alleles, the chimeric protein is more stable. We report that UBE2O functions in regulating the stability of wild-type MLL in response to interleukin-1 signaling. Targeting wild-type MLL degradation impedes MLL leukemia cell proliferation, and it downregulates a specific group of target genes of the MLL chimeras and their oncogenic cofactor, the super elongation complex...
January 12, 2017: Cell
https://www.readbyqxmd.com/read/28064470/genome-wide-association-study-discovered-genetic-variation-and-candidate-genes-of-fibre-quality-traits-in-gossypium-hirsutum-l
#14
Zhengwen Sun, Xingfen Wang, Zhengwen Liu, Qishen Gu, Yan Zhang, Zhikun Li, Huifeng Ke, Jun Yang, Jinhua Wu, Liqiang Wu, Guiyin Zhang, Caiying Zhang, Zhiying Ma
Genetic improvement of fibre quality is one of the main breeding goals for the upland cotton, Gossypium hirsutum, but there are difficulties with precise selection of traits. Therefore, it is important to improve the understanding of the genetic basis of phenotypic variation. In this study, we conducted phenotyping and genetic variation analyses of 719 diverse accessions of upland cotton based on multiple environment tests and a recently developed Cotton 63K Illumina Infinium SNP array and performed a genome-wide association study (GWAS) of fibre quality traits...
January 8, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28064333/neurological-expression-of-an-inherited-translocation-of-chromosomal-1-and-7
#15
Nabil A AlMajhad, Amal M AlHashem, Inesse A Bouhjar, Brahim M Tabarki
An unbalanced translocation of chromosome 1 and 7 (t[1;7]) associated with neurological phenotype and brain malformation has rarely been reported. This clinical report describes 3 siblings with brain malformations and a 13.5 Mb duplication of 1q42.3q44, and a 7.6 Mb duplication of 7q36.1q36.3 detected by array comparative genomic hybridization. This unbalanced t(1;7) was found to be inherited from a balanced translocation from the mother. All the patients presented with hypotonia, microcephaly, developmental delay, seizures, abnormal corpus callosum and abnormal cerebellum...
January 2017: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
https://www.readbyqxmd.com/read/28063109/mutation-screening-of-ackr3-and-cops8-in-kidney-cancer-cases-from-the-confirm-study
#16
Maryam Mahmoodi, Tu Nguyen-Dumont, Fleur Hammet, Bernard J Pope, Daniel J Park, Melissa C Southey, John M Darlow, Fiona Bruinsma, Ingrid Winship
An apparently balanced t(2;3)(q37.3;q13.2) translocation that appears to segregate with renal cell carcinoma (RCC) has indicated potential areas to search for the elusive genetic basis of clear cell RCC. We applied Hi-Plex targeted sequencing to analyse germline DNA from 479 individuals affected with clear cell RCC for this breakpoint translocation and genetic variants in neighbouring genes on chromosome 2, ACKR3 and COPS8. While only synonymous variants were found in COPS8, one of the missense variants in ACKR3:c...
January 6, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28060365/newly-described-salivary-gland-tumors
#17
Alena Skalova, Michal Michal, Roderick Hw Simpson
This review concentrates on three salivary gland tumors that have been accepted in the recent literature as new neoplastic entities: mammary analog secretory carcinoma (MASC), sclerosing polycystic adenoma (SPA) and cribriform adenocarcinoma of tongue and other minor salivary glands (CAMSGs). MASC is a distinctive low-grade malignant salivary cancer that harbors a characteristic chromosomal translocation, t(12;15) (p13;q25) resulting in an ETV6-NTRK3 fusion. SPA is a rare lesion often mistaken histologically for low-grade salivary carcinoma...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28060322/analysis-of-the-ambient-particulate-matter-induced-chromosomal-aberrations-using-an-in-vitro-system
#18
Isabelle R Miousse, Igor Koturbash, Marie-Cécile Chalbot, Martin Hauer-Jensen, Ilias Kavouras, Rupak Pathak
Exposure to particulate matter (PM) is a major world health concern, which may damage various cellular components, including the nuclear genetic material. To assess the impact of PM on nuclear genetic integrity, structural chromosomal aberrations are scored in the metaphase spreads of mouse RAW264.7 macrophage cells. PM is collected from ambient air with a high volume total suspended particles sampler. The collected material is solubilized and filtered to retain the water-soluble, fine portion. The particles are characterized for chemical composition by nuclear magnetic resonance (NMR) spectroscopy...
December 21, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28032081/philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-8-years-experience-from-a-tertiary-care-center-in-india
#19
Madhav Danthala, Sadashivudu Gundeti, Laxmi Srinivas Maddali, Ashok Pillai, Krishna Chaitanya Puligundla, Raja Praveen Adusumilli
INTRODUCTION: The Philadelphia chromosome (Ph) is the most common cytogenetic abnormality associated with adult acute lymphoblastic leukemia (ALL) occurring in 20% to 40% of patients. It is also detected in 2% to 5% of children with ALL. Historically, patients with Ph-positive ALL carried a dismal prognosis, with poor response to most chemotherapy combinations, short remission durations, and long-term disease-free survival rates of 10% to 20%. The advent of tyrosine kinase inhibitors (TKIs) has revolutionized therapy of Ph-positive ALL...
October 2016: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/28030795/aml-associated-oncofusion-proteins-pml-rara-aml1-eto-and-cbfb-myh11-target-runx-ets-factor-binding-sites-to-modulate-h3ac-levels-and-drive-leukemogenesis
#20
Abhishek A Singh, Amit Mandoli, Koen H M Prange, Marko Laakso, Joost H A Martens
Chromosomal translocations are one of the hallmarks of acute myeloid leukemia (AML), often leading to gene fusions and expression of an oncofusion protein. Over recent years it has become clear that most of the AML associated oncofusion proteins molecularly adopt distinct mechanisms for inducing leukemogenesis. Still these unique molecular properties of the chimeric proteins converge and give rise to a common pathogenic molecular mechanism. In the present study we compared genome-wide DNA binding and transcriptome data associated with AML1-ETO, CBFB-MYH11 and PML-RARA oncofusion protein expression to identify unique and common features...
December 24, 2016: Oncotarget
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