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https://www.readbyqxmd.com/read/28323865/the-microrna-302b-inhibited-insulin-like-growth-factor-binding-protein-2-signaling-pathway-induces-glioma-cell-apoptosis-by-targeting-nuclear-factor-ia
#1
Chin-Cheng Lee, Peng-Hsu Chen, Kuo-Hao Ho, Chwen-Ming Shih, Chia-Hsiung Cheng, Cheng-Wei Lin, Kur-Ta Cheng, Ann-Jeng Liu, Ku-Chung Chen
MicroRNAs are small noncoding RNAs that post-transcriptionally control the expression of genes involved in glioblastoma multiforme (GBM) development. Although miR-302b functions as a tumor suppressor, its role in GBM is still unclear. Therefore, this study comprehensively explored the roles of miR-302b-mediated gene networks in GBM cell death. We found that miR-302b levels were significantly higher in primary astrocytes than in GBM cell lines. miR-302b overexpression dose dependently reduced U87-MG cell viability and induced apoptosis through caspase-3 activation and poly(ADP ribose) polymerase degradation...
2017: PloS One
https://www.readbyqxmd.com/read/28318770/expression-of-cathepsin-s-in-bcg-converts-it-into-a-pro-apoptotic-and-highly-immunogenic-strain
#2
Alice Lau, Vijender Singh, Hafid Soualhine, Zakaria Hmama
BACKGROUND: BCG vaccine, introduced almost 100years ago, is the only option to prevent TB disease. It effectively protects newborns from meningeal TB but fails to prevent adult pulmonary TB. TB kills 1.3million people annually in areas where BCG vaccination is widely practiced. Thus, more effective TB vaccines are urgently needed. Others and we have shown that BCG mimics features of virulent M. tuberculosis, in particular attenuation of essential macrophage functions such as phagosome maturation and antigen presentation...
March 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28318643/cxcl10-alters-the-tumour-immune-microenvironment-and-disease-progression-in-a-syngeneic-murine-model-of-high-grade-serous-ovarian-cancer
#3
Katrina K Au, Nichole Peterson, Peter Truesdell, Gillian Reid-Schachter, Kasra Khalaj, Runhan Ren, Julie-Ann Francis, Charles H Graham, Andrew W Craig, Madhuri Koti
OBJECTIVE: We recently established that high STAT1 expression and associated T helper type I tumour immune microenvironment (TME) are prognostic and chemotherapy response predictive biomarkers in high-grade serous ovarian cancer (HGSC). STAT1 induced chemokine CXCL10 is key to the recruitment of lymphocytes in the TME and is significantly highly expressed in the tumours from patients with longer survival. In the current study we therefore aimed to elucidate the role CXCL10 in disease progression and tumour immune transcriptomic alterations using the ID8 syngeneic murine model of HGSC...
March 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28316092/elevation-of-gprc5a-expression-in-colorectal-cancer-promotes-tumor-progression-through-vnn-1-induced-oxidative-stress
#4
Long Zhang, Liang Li, Ganglong Gao, Gaigai Wei, Yansen Zheng, Chunmei Wang, Na Gao, Yongliang Zhao, Jiong Deng, Huaqing Chen, Jialiang Sun, Dali Li, Xueli Zhang, Mingyao Liu
The clearance of oxidative stress compounds is critical for the protection of the organism from malignancy, but how this key physiological process is regulated is not fully understood. Here we found that the expression of GPRC5A, a well-characterized tumor suppressor in lung cancer, was elevated in colorectal cancer tissues in patients. In both cancer cell lines and a colitis-associated cancer model in mice, we found that GPRC5A deficiency reduced cell proliferation and increased cell apoptosis as well as inhibited tumorigenesis in vivo...
March 17, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28302358/elevated-ammonium-reduces-the-negative-effect-of-heat-stress-on-the-stony-coral-pocillopora-damicornis
#5
Zhi Zhou, Guoqing Zhang, Guangmei Chen, Xingzhen Ni, Liping Guo, Xiaopeng Yu, Chunlin Xiao, Yanlai Xu, Xiaowei Shi, Bo Huang
Climate change and environmental pollution have been threatening the survival of corals. In the present study, whole transcriptomes of the coral Pocillopora damicornis were sequenced under high temperature and elevated ammonium. After reads mapping and abundance estimation, differentially expressed genes were obtained in the Control/Heat, Control/Heat_NH4 and Heat/Heat_NH4 comparisons. Five overrepresented GO terms centering the tumor necrosis factor signaling pathway were noted for significantly upregulated genes in the Control/Heat and Control/Heat_NH4 comparisons...
March 13, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28297718/dnd1-maintains-germline-stem-cells-via-recruitment-of-the-ccr4-not-complex-to-target-mrnas
#6
Masashi Yamaji, Miki Jishage, Cindy Meyer, Hemant Suryawanshi, Evan Der, Misaki Yamaji, Aitor Garzia, Pavel Morozov, Sudhir Manickavel, Hannah L McFarland, Robert G Roeder, Markus Hafner, Thomas Tuschl
The vertebrate-conserved RNA-binding protein DND1 is required for the survival of primordial germ cells (PGCs), as well as the suppression of germ cell tumours in mice. Here we show that in mice DND1 binds a UU(A/U) trinucleotide motif predominantly in the 3' untranslated regions of mRNA, and destabilizes target mRNAs through direct recruitment of the CCR4-NOT deadenylase complex. Transcriptomic analysis reveals that the extent of suppression is dependent on the number of DND1-binding sites. This DND1-dependent mRNA destabilization is required for the survival of mouse PGCs and spermatogonial stem cells by suppressing apoptosis...
March 15, 2017: Nature
https://www.readbyqxmd.com/read/28292546/novel-insights-into-host-responses-and-reproductive-pathophysiology-of-porcine-reproductive-and-respiratory-syndrome-caused-by-prrsv-2
#7
REVIEW
John C S Harding, Andrea Ladinig, Predrag Novakovic, Susan E Detmer, Jamie M Wilkinson, Tianfu Yang, Joan K Lunney, Graham S Plastow
A large challenge experiment using North American porcine reproductive and respiratory virus (PRRSV-2) provided new insights into the pathophysiology of reproductive PRRS. Deep phenotyping of dams and fetuses identified maternal and fetal predictors of PRRS severity and resilience. PRRSV infection resulted in dramatic decreases in all leukocyte subsets by 2days post inoculation. Apoptosis in the interface region was positively related to endometrial vasculitis, viral load in endometrium and fetal thymus, and odds of meconium staining...
March 2, 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28286052/a-systems-biology-approach-to-overcome-trail-resistance-in-cancer-treatment
#8
REVIEW
Kumar Selvarajoo
Over the last decade, our research team has investigated the dynamic responses and global properties of living cells using systems biology approaches. More specifically, we have developed computational models and statistical techniques to interpret instructive cell signaling and high-throughput transcriptome-wide behaviors of immune, cancer, and embryonic development cells. Here, I will focus on our recent works in overcoming cancer resistance. TRAIL (tumor necrosis factor related apoptosis-inducing ligand), a proinflammatory cytokine, has shown promising success in controlling cancer threat due to its ability to induce apoptosis in cancers specifically, while having limited effect on normal cells...
March 9, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28283675/amyotrophic-lateral-sclerosis-gene-deregulation-in-the-anterior-horn-of-the-spinal-cord-and-frontal-cortex-area-8-implications-in-frontotemporal-lobar-degeneration
#9
Pol Andrés-Benito, Jesús Moreno, Ester Aso, Mónica Povedano, Isidro Ferrer
Transcriptome arrays identifies 747 genes differentially expressed in the anterior horn of the spinal cord and 2,300 genes differentially expressed in frontal cortex area 8 in a single group of typical sALS cases without frontotemporal dementia compared with age-matched controls. Main up-regulated clusters in the anterior horn are related to inflammation and apoptosis; down-regulated clusters are linked to axoneme structures and protein synthesis. In contrast, up-regulated gene clusters in frontal cortex area 8 involve neurotransmission, synaptic proteins and vesicle trafficking, whereas main down-regulated genes cluster into oligodendrocyte function and myelin-related proteins...
March 9, 2017: Aging
https://www.readbyqxmd.com/read/28275007/gene-expression-profiling-of-patient-derived-pancreatic-cancer-xenografts-predicts-sensitivity-to-the-bet-bromodomain-inhibitor-jq1-implications-for-individualized-medicine-efforts
#10
Benjamin Bian, Martin Bigonnet, Odile Gayet, Celine Loncle, Aurélie Maignan, Marine Gilabert, Vincent Moutardier, Stephane Garcia, Olivier Turrini, Jean-Robert Delpero, Marc Giovannini, Philippe Grandval, Mohamed Gasmi, Mehdi Ouaissi, Veronique Secq, Flora Poizat, Rémy Nicolle, Yuna Blum, Laetitia Marisa, Marion Rubis, Jean-Luc Raoul, James E Bradner, Jun Qi, Gwen Lomberk, Raul Urrutia, Andres Saul, Nelson Dusetti, Juan Iovanna
c-MYC controls more than 15% of genes responsible for proliferation, differentiation, and cellular metabolism in pancreatic as well as other cancers making this transcription factor a prime target for treating patients. The transcriptome of 55 patient-derived xenografts show that 30% of them share an exacerbated expression profile of MYC transcriptional targets (MYC-high). This cohort is characterized by a high level of Ki67 staining, a lower differentiation state, and a shorter survival time compared to the MYC-low subgroup...
March 8, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28262799/dietary-restriction-protects-against-diethylnitrosamine-induced-hepatocellular-tumorigenesis-by-restoring-the-disturbed-gene-expression-profile
#11
Ting Duan, Wenjie Sun, Mohan Zhang, Juan Ge, Yansu He, Jun Zhang, Yifan Zheng, Wei Yang, Han-Ming Shen, Jun Yang, Xinqiang Zhu, Peilin Yu
Hepatocellular carcinoma (HCC) is one of the most lethal and prevalent malignancies, worse still, there are very limited therapeutic measures with poor clinical outcomes. Dietary restriction (DR) has been known to inhibit spontaneous and induced tumors in several species, but the mechanisms are little known. In the current study, by using a diethylnitrosamine (DEN)-induced HCC mice model, we found that DR significantly reduced the hepatic tumor number and size, delayed tumor development, suppressed proliferation and promoted apoptosis...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28262727/malignant-extracellular-vesicles-carrying-mmp1-mrna-facilitate-peritoneal-dissemination-in-ovarian-cancer
#12
Akira Yokoi, Yusuke Yoshioka, Yusuke Yamamoto, Mitsuya Ishikawa, Shun-Ichi Ikeda, Tomoyasu Kato, Tohru Kiyono, Fumitaka Takeshita, Hiroaki Kajiyama, Fumitaka Kikkawa, Takahiro Ochiya
Advanced ovarian cancers are highly metastatic due to frequent peritoneal dissemination, resulting in dismal prognosis. Here we report the functions of cancer-derived extracellular vesicles (EVs), which are emerging as important mediators of tumour metastasis. The EVs from highly metastatic cells strongly induce metastatic behaviour in moderately metastatic tumours. Notably, the cancer EVs efficiently induce apoptotic cell death in human mesothelial cells in vitro and in vivo, thus resulting in the destruction of the peritoneal mesothelium barrier...
March 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/28261198/a-fas-hi-lymphoproliferative-phenotype-reveals-non-apoptotic-fas-signaling-in-htlv-1-associated-neuroinflammation
#13
Soraya Maria Menezes, Fabio E Leal, Tim Dierckx, Ricardo Khouri, Daniele Decanine, Gilvaneia Silva-Santos, Saul V Schnitman, Ramon Kruschewsky, Giovanni López, Carolina Alvarez, Michael Talledo, Eduardo Gotuzzo, Douglas F Nixon, Jurgen Vercauteren, David Brassat, Roland Liblau, Anne Mieke Vandamme, Bernardo Galvão-Castro, Johan Van Weyenbergh
Human T-cell lymphotropic virus (HTLV)-1 was the first human retrovirus to be associated to cancer, namely adult T-cell leukemia (ATL), but its pathogenesis remains enigmatic, since only a minority of infected individuals develops either ATL or the neuroinflammatory disorder HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). A functional FAS -670 polymorphism in an interferon (IFN)-regulated STAT1-binding site has been associated to both ATL and HAM/TSP susceptibility. Fas(hi) T stem cell memory (Tscm) cells have been identified as the hierarchical apex of ATL, but have not been investigated in HAM/TSP...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28259909/prostate-apoptosis-response-4-par4-expression-modulates-wnt-signaling-pathways-in-mcf7-breast-cancer-cells-a-possible-mechanism-underlying-par4-mediated-docetaxel-chemosensitivity
#14
Simone Aparecida de Bessa Garcia, Ana Carolina Pavanelli, Natália Cruz E Melo, Maria Aparecida Nagai
Docetaxel is an effective drug for the treatment of metastatic breast cancer. However, the exact mechanisms and/or markers associated with chemosensitivity or resistance to docetaxel remain unclear. We previously showed that the expression of prostate apoptosis response 4 (PAR4) inhibits the growth of MCF7 breast cancer cells and increases their sensitivity to docetaxel. Using cDNA microarray analysis, we evaluated transcriptome changes in MCF7 cells expressing increased levels of PAR4 and control cells before and after docetaxel treatment...
February 21, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28253290/transcriptomic-features-of-pecten-maximus-oocyte-quality-and-maturation
#15
Marianna Pauletto, Massimo Milan, Arnaud Huvet, Charlotte Corporeau, Marc Suquet, Josep V Planas, Rebeca Moreira, Antonio Figueras, Beatriz Novoa, Tomaso Patarnello, Luca Bargelloni
The king scallop Pecten maximus is a high valuable species of great interest in Europe for both fishery and aquaculture. Notably, there has been an increased investment to produce seed for enhancement programmes of wild scallop populations. However, hatchery production is a relatively new industry and it is still underdeveloped. Major hurdles are spawning control and gamete quality. In the present study, a total of 14 scallops were sampled in the bay of Brest (Brittany, France) to compare transcriptomic profiles of mature oocytes collected by spawning induction or by stripping...
2017: PloS One
https://www.readbyqxmd.com/read/28249569/unity-in-defence-honeybee-workers-exhibit-conserved-molecular-responses-to-diverse-pathogens
#16
Vincent Doublet, Yvonne Poeschl, Andreas Gogol-Döring, Cédric Alaux, Desiderato Annoscia, Christian Aurori, Seth M Barribeau, Oscar C Bedoya-Reina, Mark J F Brown, James C Bull, Michelle L Flenniken, David A Galbraith, Elke Genersch, Sebastian Gisder, Ivo Grosse, Holly L Holt, Dan Hultmark, H Michael G Lattorff, Yves Le Conte, Fabio Manfredini, Dino P McMahon, Robin F A Moritz, Francesco Nazzi, Elina L Niño, Katja Nowick, Ronald P van Rij, Robert J Paxton, Christina M Grozinger
BACKGROUND: Organisms typically face infection by diverse pathogens, and hosts are thought to have developed specific responses to each type of pathogen they encounter. The advent of transcriptomics now makes it possible to test this hypothesis and compare host gene expression responses to multiple pathogens at a genome-wide scale. Here, we performed a meta-analysis of multiple published and new transcriptomes using a newly developed bioinformatics approach that filters genes based on their expression profile across datasets...
March 2, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28246982/transcriptomic-analysis-of-male-black-tiger-shrimp-penaeus-monodon-after-polychaete-feeding-to-enhance-testicular-maturation
#17
Rungnapa Leelatanawit, Umaporn Uawisetwathana, Amornpan Klanchui, Jutatip Khudet, Suwanchai Phomklad, Somjai Wongtriphop, Pikul Jiravanichpaisal, Nitsara Karoonuthaisiri
To reveal molecular mechanism of how polychaetes enhanced reproductive maturation in the male black tiger shrimp (Penaeus monodon), transcriptomic profiles of male reproductive organs (testes and vas deferens) between polychaete-fed and commercial pellet-fed male brooders were compared using cDNA microarray. The overall profiles were distinguishingly different between the two feed groups as well as between testes and vas deferens. Additionally, six of 11 differentially expressed gene identified by the microarray (HNRPUL1 and GCP4 in testes, MAT2B, CDC16, and CSN5 in vas deferens, and SLD5 in both organs) were validated by quantitative real-time PCR (qPCR) and found to exhibit significantly higher expression levels in polychaete-fed shrimp than those in commercial pellet-fed shrimp...
February 28, 2017: Marine Biotechnology
https://www.readbyqxmd.com/read/28246447/transcriptomic-comparison-of-primary-bovine-horn-core-carcinoma-culture-and-parental-tissue-at-early-stage
#18
Sharadindu Shil, R S Joshi, C G Joshi, A K Patel, Ravi K Shah, Namrata Patel, Subhash J Jakhesara, Sumana Kundu, Bhaskar Reddy, P G Koringa, D N Rank
AIM: Squamous cell carcinoma or SCC of horn in bovines (bovine horn core carcinoma) frequently observed in Bos indicus affecting almost 1% of cattle population. Freshly isolated primary epithelial cells may be closely related to the malignant epithelial cells of the tumor. Comparison of gene expression in between horn's SCC tissue and its early passage primary culture using next generation sequencing was the aim of this study. MATERIALS AND METHODS: Whole transcriptome sequencing of horn's SCC tissue and its early passage cells using Ion Torrent PGM were done...
January 2017: Veterinary World
https://www.readbyqxmd.com/read/28246384/a-c-myc-regulated-stem-cell-like-signature-in-high-risk-neuroblastoma-a-systematic-discovery-target-neuroblastoma-esc-like-signature
#19
Xinan Holly Yang, Fangming Tang, Jisu Shin, John M Cunningham
c-Myc dysregulation is hypothesized to account for the 'stemness' - self-renewal and pluripotency - shared between embryonic stem cells (ESCs) and adult aggressive tumours. High-risk neuroblastoma (HR-NB) is the most frequent, aggressive, extracranial solid tumour in childhood. Using HR-NB as a platform, we performed a network analysis of transcriptome data and presented a c-Myc subnetwork enriched for genes previously reported as ESC-like cancer signatures. A subsequent drug-gene interaction analysis identified a pharmacogenomic agent that preferentially interacted with this HR-NB-specific, ESC-like signature...
December 2017: Scientific Reports
https://www.readbyqxmd.com/read/28243233/zebra-fish-lacking-adaptive-immunity-acquire-an-antiviral-alert-state-characterized-by-upregulated-gene-expression-of-apoptosis-multigene-families-and-interferon-related-genes
#20
Pablo García-Valtanen, Alicia Martínez-López, Azucena López-Muñoz, Melissa Bello-Perez, Regla M Medina-Gali, María Del Mar Ortega-Villaizán, Monica Varela, Antonio Figueras, Víctoriano Mulero, Beatriz Novoa, Amparo Estepa, Julio Coll
To investigate fish innate immunity, we have conducted organ and cell immune-related transcriptomic as well as immunohistologic analysis in mutant zebra fish (Danio rerio) lacking adaptive immunity (rag1(-/-)) at different developmental stages (egg, larvae, and adult), before and after infection with spring viremia carp virus (SVCV). The results revealed that, compared to immunocompetent zebra fish (rag1(+/+) ), rag1(-/-) acquired increased resistance to SVCV with age, correlating with elevated transcript levels of immune genes in skin/fins and lymphoid organs (head kidney and spleen)...
2017: Frontiers in Immunology
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