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https://www.readbyqxmd.com/read/28938637/the-loss-of-function-of-dna-methyltransferase-1-by-sirna-impairs-the-growth-of-non-small-cell-lung-cancer-with-alleviated-side-effects-via-reactivation-of-rassf1a-and-apc-in-vitro-and-vivo
#1
Qi Lai, Yin-Hui Xu, Qiang Chen, Liang Tang, An-Gui Li, Li-Fei Zhang, Chun-Fang Zhang, Jian-Fei Song, Zhen-Zong Du
Hypermethylation of tumor suppressor genes (TSGs) promoters by DNA methyltransferase (DNMT) can be observed in almost all cancers which represent a hallmark of carcinogenesis, including lung cancer. DNMT inhibitors (e.g.5-Aza-CR/CdR) reactivate TSGs to exert anti-cancer activity and have been applied into the clinical. However, it is cytotoxic even at low concentrations, which might be not directly related to DNA methylation. We here investigated an alternative strategy in the lung cancer therapy and aimed to estimate and compare its efficiency and side effects of knockdown of DNMT1 in vitro and in vivo...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28937627/polyyne-enriched-extract-from-oplopanax-elatus-significantly-ameliorates-the-progression-of-colon-carcinogenesis-in-apc-min-mice
#2
Xin Qiao, Wei Sun, Chongzhi Wang, Li Zhang, Ping Li, Xiaodong Wen, Jie Yang, Chunsu Yuan
Colorectal cancer (CRC) is the third most common cancer in the world. Oplopanax elatus is widely used in traditional medicine. However, little is known about its pharmacological effects and bioactive compounds. We evaluated the effects of the polyyne-enriched extract from O. elatus (PEO) on the progression of colon carcinogenesis in Apc(Min/+) mice. In addition, these effects were also investigated in HCT116 and SW480 cells. After PEO oral administration (0.2% diet) for 12 weeks, PEO significantly improved body weight changes and reduced the tumor burden and tumor multiplicity compared with the untreated mice...
September 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28936523/mesoporous-zno-nanocapsules-for-the-induction-of-enhanced-antigen-specific-immunological-responses
#3
Sumbul Afroz, Himadri Medhi, Somedutta Maity, Gillipsie Minhas, Srikanth Battu, Jeevan Giddaluru, Koushi Kumar, Pradip Paik, Nooruddin Khan
The application of nanotechnology in vaccinology has fuelled rapid advancement towards the design and development of nanovaccines. Nanoparticles have been found to enhance vaccine efficacy through the spatiotemporal orchestration of antigen delivery to secondary lymphoid organs and antigen-presentation by Antigen Presenting Cells (APCs) synchronized with stimulation of innate and adaptive immune responses. Metal based nanoparticles (MNPs) have been extensively engineered for the generation of nanovaccines owing to their intrinsic adjuvant-like properties and immunomodulatory functions...
September 22, 2017: Nanoscale
https://www.readbyqxmd.com/read/28935674/expression-of-concern-suppression-of-intestinal-tumorigenesis-in-apc-mutant-mice-upon-musashi-1-deletion-andy-r-wolfe-amanda-ernlund-william-mcguinness-carl-lehmann-kaitlyn-carl-nicole-balmaceda-kristi-l-neufeld-j-cell-sci-doi-10-1242-jcs-197574
#4
https://www.readbyqxmd.com/read/28935642/diabetic-kidney-disease-as-easy-as-apc
#5
James D McFadyen, Mark E Cooper
No abstract text is available yet for this article.
September 21, 2017: Blood
https://www.readbyqxmd.com/read/28935014/-impact-of-lung-cancer-deaths-on-life-expectancy-and-years-of-potential-life-lost-from-1981-to-2015-in-kunshan-jiangsu-province-china
#6
Wenbin Hu, Ting Zhang, Wei Qin, Jianguo Shi, Lan Tong, Hequan Qiu, Jie Zhou, Yixu Jin, Xiaoming Luo, Yueping Shen
BACKGROUND: Previous reports have shown that lung cancer incidence and mortality were increasing both in male and female; however, the temporal trends in lung cancer eliminated life expectancy and potential years of life lost (PYLL) are very rare. Thus, we examine the temporal trends in lung cancer eliminated life expectancy and PYLL in Kunshan city, Jiangsu province, 1981-2015. METHODS: Data were collected from vital registry of Kunshan city. Lung cancer eliminated life expectancy and the PYLL were calculated by sex...
September 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28934013/reconciling-conflicting-models-for-global-control-of-cell-cycle-transcription
#7
Chun-Yi Cho, Francis C Motta, Christina M Kelliher, Anastasia Deckard, Steven B Haase
Models for the control of global cell-cycle transcription have advanced from a CDK-APC/C oscillator, a transcription factor (TF) network, to coupled CDK-APC/C and TF networks. Nonetheless, current models were challenged by a recent study that concluded that the cell-cycle transcriptional program is primarily controlled by a CDK-APC/C oscillator in budding yeast. Here we report an analysis of the transcriptome dynamics in cyclin mutant cells that were not queried in the previous study. We find that B-cyclin oscillation is not essential for control of phase-specific transcription...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28933982/function-and-regulation-mechanism-of-chk1-during-meiotic-maturation-in-porcine-oocytes
#8
Zheng-Wen Nie, Li Chen, Qiu-Shi Jin, Ying-Ying Gao, Tao Wang, Xia Zhang, Yi-Liang Miao
Checkpoint 1 (Chk1), as an important member of DNA replication checkpoint and DNA damage response, has an important role during the G2/M stage of mitosis. In this study, we used porcine oocyte as a model to investigate the function of Chk1 during porcine oocyte maturation. Chk1 was expressed from germinal vesicle (GV) to metaphase II (MII) stages, mainly localized in the cytoplasm at GV stage and moved to the spindle after germinal vesicle breakdown (GVBD). Chk1 depletion not only induced oocytes to be arrested at MI stage with abnormal chromosomes arrangement, but also inhibited the degradation of Cyclin B1 and decreased the expression of Mitotic Arrest Deficient 2-Like 1 (Mad2L1), one of spindle assembly checkpoint (SAC) proteins, and cadherin 1 (Cdh1), one of coactivation for anaphase-promoting complex/cyclosome (APC/C)...
September 21, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28932723/anaphase-promoting-complex-7-is-a-prognostic-factor-in-human-colorectal-cancer
#9
Ik Yong Kim, Hye Yeon Kwon, Kwang Hwa Park, Dae Sung Kim
PURPOSE: The anaphase-promoting complex (APC) is a multiprotein complex with E3 ubiquitin ligase activity and is required for ubiquitination of securin and cyclin-B. Several APC-targeting molecules are reported to be oncogenes. Dysregulation of APC may be associated with tumorigenesis. This study examines the relationship between APC expression and clinicopathological factors and evaluates the possibility of an aberrant APC function in colorectal carcinomas (CRCs). METHODS: To determine whether the loss of APC7 expression is related to tumorigenesis, we used tissue micro-arrays in 114 resected CRCs to scrutinize the expressions of APC7 and Ki-67 immunohistochemistry and to find relations with clinocopathologic parameters...
August 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/28931687/a-dna-vaccine-that-targets-hemagglutinin-to-antigen-presenting-cells-protects-mice-against-h7-influenza
#10
Tor Kristian Andersen, Fan Zhou, Rebecca Cox, Bjarne Bogen, Gunnveig Grødeland
Zoonotic influenza H7 viral infections have a case fatality rate of about 40%. Currently no or limited human to human spread has occurred, but we may be facing a severe pandemic threat if the virus acquires the ability to transmit between humans. Novel vaccines that can be rapidly produced for global distribution are urgently needed, and DNA vaccines may be the only type of vaccine that allows for the speed necessary to quench an emerging pandemic. Here, we have constructed DNA vaccines encoding the hemagglutinin (HA) from influenza A/chicken/Italy/13474/99 (H7N1)...
September 20, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28931595/cell-cycle-transitions-a-common-role-for-stoichiometric-inhibitors
#11
Michael Hopkins, John J Tyson, Béla Novák
The cell division cycle is the process by which eukaryotic cells replicate their chromosomes and partition them to two daughter cells. To maintain the integrity of the genome, proliferating cells must be able to block progression through the division cycle at key transition points (called 'checkpoints'), if there have been problems in the replication of the chromosomes or their biorientation on the mitotic spindle. These checkpoints are governed by protein-interaction networks, composed of phase-specific cell-cycle activators and inhibitors...
September 20, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28931462/paradoxical-development-of-polymyositis-like-autoimmunity-through-augmented-expression-of-autoimmune-regulator-aire
#12
Hitoshi Nishijima, Tatsuya Kajimoto, Yoshiki Matsuoka, Yasuhiro Mouri, Junko Morimoto, Minoru Matsumoto, Hiroshi Kawano, Yasuhiko Nishioka, Hisanori Uehara, Keisuke Izumi, Koichi Tsuneyama, Il-Mi Okazaki, Taku Okazaki, Kazuyoshi Hosomichi, Ayako Shiraki, Makoto Shibutani, Kunitoshi Mitsumori, Mitsuru Matsumoto
Autoimmunity is prevented by the function of the autoimmune regulator [AIRE (Aire in mice)], which promotes the expression of a wide variety of tissue-restricted antigens (TRAs) from medullary thymic epithelial cells (mTECs) and from a subset of peripheral antigen-presenting cells (APCs). We examined the effect of additive expression of human AIRE (huAIRE) in a model of autoimmune diabetes in NOD mice. Unexpectedly, we observed that mice expressing augmented AIRE/Aire developed muscle-specific autoimmunity associated with incomplete maturation of mTECs together with impaired expression of Aire-dependent TRAs...
September 17, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28931059/whole-genome-sequencing-of-mutants-with-increased-resistance-against-the-two-peptide-bacteriocin-plantaricin-jk-reveals-a-putative-receptor-and-potential-docking-site
#13
Bie Ekblad, Jon Nissen-Meyer, Tom Kristensen
By whole-genome sequencing of resistant mutants, a putative receptor for plantaricin JK, a two-peptide bacteriocin produced by some Lactobacillus plantarum strains, was identified in Lactobacillus plantarum NCFB 965 and Weissella viridescens NCFB 1655. The receptors of the two species had 66% identical amino acid sequences and belong to the amino acid-polyamine-organocation (APC) transporter protein family. The resistant mutants contained point mutations in the protein-encoding gene resulting in either premature stop codons, leading to truncated versions of the protein, or single amino acid substitutions...
2017: PloS One
https://www.readbyqxmd.com/read/28930697/overexpression-of-muc1-and-genomic-alterations-in-its-network-associate-with-prostate-cancer-progression
#14
Xiaozeng Lin, Yan Gu, Anil Kapoor, Fengxiang Wei, Tariq Aziz, Diane Ojo, Yanzhi Jiang, Michael Bonert, Bobby Shayegan, Huixiang Yang, Khalid Al-Nedawi, Pierre Major, Damu Tang
We investigate the association of MUC1 with castration-resistant prostate cancer (CRPC), bone metastasis, and PC recurrence. MUC1 expression was studied in patient-derived bone metastasis and CRPCs produced by prostate-specific PTEN(-/-) mice and LNCaP xenografts. Elevations in MUC1 expression occur in CRPC. Among nine patients with hormone-naïve bone metastasis, eight express MUC1 in 61% to 100% of PC cells. Utilizing cBioPortal PC genomic data, we organized a training (n=300), testing (n=185), and validation (n=194) cohort...
September 17, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28928485/increased-trem-2-expression-on-the-subsets-of-cd11c-cells-in-the-lungs-and-lymph-nodes-during-allergic-airway-inflammation
#15
Sannette C Hall, Devendra K Agrawal
Dendritic cells (DCs) are professional APCs that traffic to the draining lymph nodes where they present processed antigens to naïve T-cells. The recently discovered triggering receptor expressed on myeloid cells (TREM)-2 has been shown to be expressed on DCs in several disease models, however, its role in asthma is yet to be elucidated. In the present study, we examined the effect of allergen exposure on TREM-2 expression in the airways and on DC subsets in the lung and lymph nodes in murine model of allergic airway inflammation...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28927526/putative-biomarkers-for-cervical-cancer-snvs-methylation-and-expression-profiles
#16
REVIEW
Maria de Fátima Senra Cardoso, Carlos Henrique Madeiros Castelletti, José Luiz de Lima-Filho, Danyelly Bruneska Gondim Martins, José António Couto Teixeira
Cervical cancer is primarily caused by Human papillomavirus (HPV) infection, but other factors such as smoking habits, co-infections and genetic background, can also contribute to its development. Although this cancer is avoidable, it is the fourth most frequent type of cancer in females worldwide and can only be treated with chemotherapy and radical surgery. There is a need for biomarkers that will enable early diagnosis and targeted therapy for this type of cancer. Therefore, a systems biology pipeline was applied in order to identify potential biomarkers for cervical cancer, which show significant reports in three molecular aspects: DNA sequence variants, DNA methylation pattern and alterations in mRNA/protein expression levels...
July 2017: Mutation Research
https://www.readbyqxmd.com/read/28926134/early-genetic-aberrations-in-patients-with-sporadic-colorectal-cancer
#17
Brooke R Druliner, Xiaoyang Ruan, Hugues Sicotte, Daniel O'Brien, Hongfang Liu, Jean-Pierre A Kocher, Lisa Boardman
Chromosome instability (CIN) is widely observed in both sporadic and hereditary colorectal cancer (CRC). Defects in APC and WNT signaling are primarily associated with CIN in hereditary CRC, but the genetic causes for CIN in sporadic CRC remain elusive. Using high-density SNP array and exome data from The Cancer Genome Atlas, we characterized loss of heterozygosity (LOH) and copy number variation (CNV) in the peripheral blood, normal colon and corresponding tumor tissue in 15 CRC patients with proficient mismatch repair (MMR) and 24 CRC patients with deficient MMR...
September 19, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28923278/can-adjunctive-therapies-augment-the-efficacy-of-endovascular-thrombolysis-a-potential-role-for-activated-protein-c
#18
REVIEW
Arun Paul Amar, Abhay P Sagare, Zhen Zhao, Yaoming Wang, Amy R Nelson, John H Griffin, Berislav V Zlokovic
In the management of acute ischemic stroke, vessel recanalization correlates with functional status, mortality, cost, and other outcome measures. Thrombolysis with intravenous tissue plasminogen activator has many limitations that restrict its applicability, but recent advances in the development of mechanical thrombectomy devices as well as improved systems of stroke care have resulted in greater likelihood of vessel revascularization. Nonetheless, there remains substantial discrepancy between rates of recanalization and rates of favorable outcome...
September 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28919998/reciprocal-influence-of-b-cells-and-tumor-macro-and-microenvironments-in-the-apc-min-model-of-colorectal-cancer
#19
Francesca Mion, Stefania Vetrano, Silvia Tonon, Viviana Valeri, Andrea Piontini, Alessia Burocchi, Luciana Petti, Barbara Frossi, Alessandro Gulino, Claudio Tripodo, Mario P Colombo, Carlo E Pucillo
One of the most fascinating aspects of the immune system is its dynamism, meant as the ability to change and readapt according to the organism needs. Following an insult, we assist to the spontaneous organization of different immune cells which cooperate, locally and at distance, to build up an appropriate response. Throughout tumor progression, adaptations within the systemic tumor environment, or macroenvironment, result in the promotion of tumor growth, tumor invasion and metastasis to distal organs, but also to dramatic changes in the activity and composition of the immune system...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28919508/pro-inflammatory-chitosan-poly-%C3%AE-glutamic-acid-nanoparticles-modulate-human-antigen-presenting-cells-phenotype-and-revert-their-pro-invasive-capacity
#20
Flávia Castro, Marta L Pinto, Andreia M Silva, Catarina L Pereira, Graciosa Q Teixeira, Maria Gomez-Lazaro, Susana G Santos, Mário A Barbosa, Raquel M Gonçalves, Maria J Oliveira
Anticancer immune responses depend on efficient presentation of tumor antigens and co-stimulatory signals provided by antigen-presenting cells (APCs). However, it is described that immature dendritic cells (DCs) and macrophages at the tumor site may have an immunosuppressive profile, which limits the activity of effector T cells and supports tumor progression. Therapeutic targeting of these innate immune cells, either aiming at their elimination or re-polarization towards an immunostimulatory profile, has been pointed as an attractive approach to control tumor progression...
September 14, 2017: Acta Biomaterialia
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