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https://www.readbyqxmd.com/read/29452418/phf20-collaborates-with-parp1-to-promote-stemness-and-aggressiveness-of-neuroblastoma-cells-through-activation-of-sox2-and-oct4
#1
Wenyong Long, Wei Zhao, Bo Ning, Jing Huang, Junjun Chu, Linfeng Li, Qianquan Ma, Changsheng Xing, Helen Y Wang, Qing Liu, Rong-Fu Wang
The differentiation status of neuroblastoma (NB) strongly correlates with its clinical outcomes; however, the molecular mechanisms driving maintenance of stemness and differentiation remain poorly understood. Here, we show that plant homeodomain finger-containing protein 20 (PHF20) functions as a critical epigenetic regulator in sustaining stem cell-like phenotype of NB by using CRISPR/Cas9-based targeted knockout (KO) for high-throughput screening of gene function in NB cell differentiation. Expression of PHF20 in NB was significantly associated with high aggressiveness of the tumor and poor outcomes for NB patients...
February 14, 2018: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29452297/lumbar-intraspinal-spindle-cell-rhabdomyosarcoma-as-a-rare-cause-of-spinal-stenosis-a-case-report
#2
Donel A Sequea, Maria E Reese
Rhabdomyosarcoma (RMS) represents the most common sarcoma in childhood, yet is extremely rare in adults with only a handful of cases reported. Here we present a case of intraspinal spindle cell RMS in an adult who presented as a typical case of spinal stenosis. To our knowledge, this is the first reported case of lumbar intraspinal spindle cell RMS in an adult patient. Furthermore, RMS phenotypically presents more aggressively in adults compared to children.
February 13, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29452231/the-association-of-22-y-chromosome-short-tandem-repeat-loci-with-initiative-aggressive-behavior
#3
Chun Yang, Huajie Ba, Wei Zhang, Shuyou Zhang, Hanqing Zhao, Haiying Yu, Zhiqin Gao, Binbin Wang
Aggressive behavior represents an important public concern and a clinical challenge to behaviorists and psychiatrists. Aggression in humans is known to have an important genetic basis, so to investigate the association of Y chromosome short tandem repeat (Y-STR) loci with initiative-aggressive behavior, we compared allelic and haplotypic distributions of 22 Y-STRs in a group of Chinese males convicted of premeditated extremely violent crimes (n = 271) with a normal control group (n = 492). Allelic distributions of DYS533 and DYS437 loci differed significantly between the two groups (P < 0...
February 13, 2018: Gene
https://www.readbyqxmd.com/read/29451591/impact-of-aggressive-periodontitis-and-chronic-periodontitis-on-oral-health-related-quality-of-life
#4
Alexandre Hugo Llanos, Carlos Guillermo Benítez Silva, Karina Tamie Ichimura, Estela Sanches Rebeis, Marcela Giudicissi, Marcelo Munhóes Romano, Luciana Saraiva
The purpose of this cross-sectional study was to investigate the effect of different forms of periodontal diseases on Oral Health-Related Quality of Life (OHRQoL). Fifty-two patients with Aggressive Periodontitis (AP) or Chronic Periodontitis (CP) were included: nine patients with Localized Aggressive Periodontitis (LAP), thirty-three patients with Generalized Aggressive Periodontitis (GAP) and ten patients with Generalized Chronic Periodontitis (GCP). Oral Health Impact Profile questionnaires (OHIP-14) were distributed after a clinical examination that measured the following periodontal parameters: tooth loss, bleeding on probing (BoP), probing depth (PD), gingival recession (REC) and clinical attachment level (CAL)...
2018: Brazilian Oral Research
https://www.readbyqxmd.com/read/29451143/familial-nonmedullary-thyroid-carcinoma-a-retrospective-analysis-of-117-families
#5
Ya-Bing Zhang, Xiao-Xin Wang, Xi-Wei Zhang, Zheng-Jiang Li, Jie Liu, Zhen-Gang Xu, Ping-Zhang Tang
Background: The first and most important step in characterizing familial nonmedullary thyroid carcinoma (NMTC) is to distinguish the true familial patients, which is the prerequisite for all accurate analyses. This study aimed to investigate whether patients from families with ≥3 first-degree relatives affected with NMTC have different characteristics than patients from families with only two affected members, and to compare these patients with those with sporadic disease. Methods: We analyzed the clinicopathological features and prognosis of 209 familial and 1120 sporadic cases of NMTC...
February 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29450944/nrf2-addiction-in-cancer-cells
#6
REVIEW
Hiroshi Kitamura, Hozumi Motohashi
The KEAP1-NRF2 system is a pivotal defense mechanism against oxidative and electrophilic stress. While transient NRF2 activation in response to stress is beneficial for health, persistent NRF2 activation in cancer cells has deleterious effects on cancer-bearing hosts by conferring therapeutic resistance and aggressive tumorigenic activity on cancer cells. Because NRF2 increases the anti-oxidant and detoxification capability of cancer cells, persistently high levels of NRF2 activity enhance therapeutic resistance of the cancer cells...
February 16, 2018: Cancer Science
https://www.readbyqxmd.com/read/29450912/association-of-clinicopathological-features-of-melanoma-with-total-naevus-count-and-a-history-of-dysplastic-naevi-a-cross-sectional-retrospective-study-within-an-academic-centre
#7
S Y Tan, L C Strazzulla, X Li, J J Park, S J Lee, C C Kim
BACKGROUND: High naevus count (HNC) (≥ 50 naevi) and presence of dysplastic naevi (DN) are risk factors for malignant melanoma (MM); however, MMs also occur in patients with low naevus count (LNC) (< 50 naevi) and in patients without DN. Little is known about differences between MMs in these groups. AIM: To characterize the clinicopathological differences between MMs in patients with HNC and those in patients with LNC, with or without biopsy-proven DN. METHODS: This was a cross-sectional retrospective chart review of 281 patients with MM seen between April 2013 and March 2014 at an academic pigmented lesion clinic (Boston, MA, USA)...
February 16, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29450800/the-endogenous-subcellular-localisations-of-the-long-chain-fatty-acid-activating-enzymes-acsl3-and-acsl4-in-sarcoma-and-breast-cancer-cells
#8
Yassmeen Radif, Haarith Ndiaye, Vasiliki Kalantzi, Ruth Jacobs, Andrew Hall, Shane Minogue, Mark G Waugh
Fatty acid uptake and metabolism are often dysregulated in cancer cells. Fatty acid activation is a critical step that allows these biomolecules to enter cellular metabolic pathways such as mitochondrial β-oxidation for ATP generation or the lipogenic routes that generate bioactive lipids such as the inositol phospholipids. Fatty acid activation by the addition of coenzyme A is catalysed by a family of enzymes called the acyl CoA synthetase ligases (ACSL). Furthermore, enhanced expression of particular ACSL isoforms, such as ACSL4, is a feature of some more aggressive cancers and may contribute to the oncogenic phenotype...
February 15, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29450702/establishment-and-characterization-of-the-ncc-ss1-c1-synovial-sarcoma-cell-line
#9
Fusako Kito, Rieko Oyama, Yoko Takai, Marimu Sakumoto, Kumiko Shiozawa, Zhiwei Qiao, Takenori Uehara, Akihiko Yoshida, Akira Kawai, Tadashi Kondo
Synovial sarcoma is an aggressive mesenchymal malignancy characterized by unique gene fusions. Tissue culture cells are essential tools for further understanding tumorigenesis and anti-cancer drug development; however, only a limited number of well-characterized synovial sarcoma cell lines exist. Thus, the objective of this study was to establish a patient-derived synovial sarcoma cell line. We established a synovial sarcoma cell line from tumor tissue isolated from a 72-year-old female patient. Prepared cells were analyzed for the presence of gene fusions by fluorescence in situ hybridization, RT-PCR, and karyotyping...
February 15, 2018: Human Cell
https://www.readbyqxmd.com/read/29450575/osteoblastomatosis-an-unusual-diagnosis-and-treatment
#10
Elena Quílez-Caballero, José Martel-Villagran, Ángel Luis Bueno-Horcajadas, Laura López-Brasal, María Jesús Díaz-Candamio
Osteoblastomatosis (OBLT), also referred to as multifocal osteoblastoma (OB), is an unusual and recently described entity consisting of multifocal tumors histologically consistent with osteoblastoma and osteoid osteoma (OO) but radiologically mimicking a vascular bone lesion. OBLT treatment is based on aggressive procedures, such as amputation, en bloc resection, and chemotherapy. Only one previously reported case was successfully treated following a multimodal approach consisting of curettage, cryotherapy, intravenous bisphosphonates, and radiofrequency ablation...
February 15, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29449896/myxofibrosarcoma-primary-cultures-molecular-and-pharmacological-profile
#11
Alessandro De Vita, Federica Recine, Laura Mercatali, Giacomo Miserocchi, Chiara Liverani, Chiara Spadazzi, Roberto Casadei, Alberto Bongiovanni, Federica Pieri, Nada Riva, Dino Amadori, Toni Ibrahim
Background: Myxofibrosarcoma (MFS), formerly considered as a myxoid variant of malignant fibrous histiocytoma, is the most common sarcoma of the extremities in adults and is characterized by a high frequency of local recurrence. The clinical behavior of MFS is unpredictable and the efficacy of chemotherapy is still not well documented. Furthermore, given the relatively recent recognition of MFS as a distinct pathologic entity its cellular and molecular biology has still not been extensively studied in patient-derived preclinical models...
December 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/29449895/dnm3-p65-and-p53-from-exosomes-represent-potential-clinical-diagnosis-markers-for-glioblastoma-multiforme
#12
Jian-Kai Yang, Jian Song, Hao-Ran Huo, Yin-Long Zhao, Guang-Yu Zhang, Zong-Mao Zhao, Guo-Zhu Sun, Bao-Hua Jiao
Background: Glioblastoma multiforme (GBM) is the most aggressive and deadly primary brain cancer that arises from astrocytes and classified as grade IV. Recently, exosomes have been reported as an essential mediator in diverse cancer carcinogenesis and metastasis. However, their role in GBM is still unclear. In this study, we aimed to investigate whether blood exosomes can be potential clinical diagnostic markers for GBM. Methods: We used a xenograft orthotopic mouse model to detect the differentially expressed genes in the brain and blood exosomes of original/recurrent GBM...
December 2017: Therapeutic Advances in Medical Oncology
https://www.readbyqxmd.com/read/29449754/behavioural-and-physiological-responses-of-laying-hens-to-automated-monitoring-equipment
#13
Stephanie Buijs, Francesca Booth, Gemma Richards, Laura McGaughey, Christine J Nicol, Joanne Edgar, John F Tarlton
Automated monitoring of behaviour can offer a wealth of information in circumstances where observing behaviour is difficult or time consuming. However, this often requires attaching monitoring devices to the animal which can alter behaviour, potentially invalidating any data collected. Birds often show increased preening and energy expenditure when wearing devices and, especially in laying hens, there is a risk that individuals wearing devices will attract aggression from conspecifics. We studied the behavioural and physiological response of 20 laying hens to backpacks containing monitoring devices fastened with elastic loops around the wing base...
February 2018: Applied Animal Behaviour Science
https://www.readbyqxmd.com/read/29449731/mixed-malignant-mullerian-tumor-with-neuroendocrine-features-in-an-irradiated-uterus-for-cervical-carcinoma-a-unique-association-a-morphological-immunohistochemisty-and-ultrastructural-study
#14
V G Vellone, B Spina, F Grillo, P Calamaro, F Sarocchi, P Sala, S Ferrero, E Fulcheri
Chemo-radiation represents an effective therapy for carcinoma of the uterine cervix. The endometrium may however receive a consistent dose of mutagenic radiations and patients may have an increased risk of secondary malignancies. Endometrial mixed malignant mullerian tumor (MMMT) is a rare, highly aggressive disease, and neuroendocrine features are even rarer. A 68 years old woman underwent radio-chemotherapy for a squamous cell carcinoma of the cervix. Follow up was uneventful until, eight years after radio-chemotherapy, imaging exams detected a diffuse enlargement of the uterine body...
December 2017: Pathologica
https://www.readbyqxmd.com/read/29449724/angiomyofibroblastoma-of-the-spermatic-cord-a-case-report
#15
L Bouhajja, S A Rammeh, S Sayari, R Zermani, F Farah
Angiomyofibroblastoma (AMF) is a rare benign mesenchymal tumor with tendency to arise in the lower genital tract of middleaged women, predominately in the vulva. A few cases of AMF in males have been reported involving the scrotum, perineum or spermatic cord. We report a new case of AMF arising in the right inguinal region of a 27-year-old man. The tumor was well-circumscribed, myxoid and measured 30 mm in maximum dimension. On microscopic examination, the tumor was composed of spindle cells without atypia and with less than one mitosis figure per 10 high-power fields...
December 2017: Pathologica
https://www.readbyqxmd.com/read/29449694/interaction-between-stat3-and-gli1-tgli1-oncogenic-transcription-factors-promotes-the-aggressiveness-of-triple-negative-breast-cancers-and-her2-enriched-breast-cancer
#16
Sherona R Sirkisoon, Richard L Carpenter, Tadas Rimkus, Ashley Anderson, Alexandria Harrison, Allison M Lange, Guangxu Jin, Kounosuke Watabe, Hui-Wen Lo
Signal transducer and activator of transcription 3 (STAT3), glioma oncogene homolog 1 (GLI1), and truncated GLI1 (tGLI1) are oncogenic transcription factors playing important roles in breast cancer. tGLI1 is a gain-of-function GLI1 isoform. Whether STAT3 physically and/or functionally interacts with GLI1/tGLI1 has not been explored. To address this knowledge gap, we analyzed 47 node-positive breast cancer specimens using immunohistochemical staining and found that phosphorylated-STAT3 (Y705), GLI1, and tGLI1 are co-overexpressed in the majority of triple-negative breast carcinomas (64%) and HER2-enriched (68%) breast carcinomas, and in lymph node metastases (65%)...
February 16, 2018: Oncogene
https://www.readbyqxmd.com/read/29449683/adult-t-cell-leukemia-lymphoma-can-be-indistinguishable-from-other-more-common-t-cell-lymphomas-the-university-of-miami-experience-with-a-large-cohort-of-cases
#17
Mahsa Khanlari, Juan Carlos Ramos, Sandra Patricia Sanchez, Jeong Hee Cho-Vega, Alexandra Amador, German Campuzano-Zuluaga, Francisco Vega, Jennifer R Chapman
Adult T-cell leukemia/lymphoma, an aggressive T-cell neoplasm, is causally linked to human T-cell lymphotropic virus type 1 and based on this association has a distinct geographic distribution. In our United States-based practice, whose population is enriched for immigrants from human T-cell lymphotropic virus type 1 endemic areas, we have identified that a subset of adult T-cell leukemia/lymphoma, in the absence of human T-cell lymphotropic virus type 1 identification, are indistinguishable from other more common T-cell neoplasms...
February 15, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29449680/pd-l1-expression-in-inflammatory-myofibroblastic-tumors
#18
Tricia R Cottrell, Anh T Duong, Christopher D Gocke, Haiying Xu, Aleksandra Ogurtsova, Janis M Taube, Deborah A Belchis
Inflammatory myofibroblastic tumor is a rare mesenchymal tumor occurring at many anatomic sites, with a predilection for children and young adults. Often indolent, they can be locally aggressive and can metastasize, resulting in significant morbidity and mortality. Therapeutic options are often limited. The identification of underlying kinase mutations has allowed the use of targeted therapy in a subset of patients. Unfortunately, not all tumors harbor mutations and resistance to tyrosine kinase inhibitor therapy is a potential problem...
February 15, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29449437/dynamic-clonal-progression-in-xenografts-of-acute-lymphoblastic-leukemia-with-intrachromosomal-amplification-of-chromosome-21
#19
Paul B Sinclair, Helen H Blair, Sarra L Ryan, Lars Buechler, Joanna Cheng, Jake Clayton, Rebecca Hanna, Shaun Hollern, Zoe Hawking, Matthew Bashton, Claire J Schwab, Lisa Jones, Lisa J Russell, Helen Marr, Peter Carey, Christina Halsey, Olaf Heidenreich, Anthony V Moorman, Christine J Harrison
Intrachromosomal amplification of chromosome 21 is a heterogeneous chromosomal rearrangement occurring in 2% of childhood precursor B-cell acute lymphoblastic leukemia. There are no cell lines with iAMP21 and these abnormalities are too complex to faithfully engineer in animal models. As a resource for future functional and pre-clinical studies, we have created xenografts from intrachromosomal amplification of chromosome 21 leukemia patient blasts and characterised them by in-vivo and ex-vivo luminescent imaging, FLOW immunophenotyping, and histological and ultrastructural analysis of bone marrow and the central nervous system...
February 15, 2018: Haematologica
https://www.readbyqxmd.com/read/29449347/association-of-tumor-necrosis-factor-%C3%AE-tnf-%C3%AE-gene-promoter-polymorphisms-with-aggressive-and-chronic-periodontitis-in-eastern-indian-population
#20
Poulami Majumder, Keheibamding Thou, Mandar Bhattacharya, Vineet Nair, Sujay Ghosh, Subrata Kumar Dey
Periodontitis is a very common inflammatory oral disease. Tumor necrosis factor α (TNF-α), a cytokine has been involved with the gingival tissue destruction and remodeling occurrence. We aimed at investigation of the association of single nucleotide polymorphisms (SNPs) in TNF-α gene promoter region to the susceptibility of aggressive and chronic periodontitis in eastern Indian population. A total of 397 DNA samples from venous blood have been isolated, among them 40 individuals were aggressive periodontitis patient, 157 were identified chronic periodontitis patients and remaining 200 were healthy individuals...
February 15, 2018: Bioscience Reports
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