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https://www.readbyqxmd.com/read/28673822/discovery-of-novel-long-non-coding-rnas-induced-by-subgroup-j-avian-leukosis-virus-infection-in-chicken
#1
Lingling Qiu, Zhiteng Li, Guobin Chang, Yulin Bi, Xiangping Liu, Lu Xu, Yang Zhang, Wenming Zhao, Qi Xu, Guohong Chen
Avian leukosis virus subgroup J (ALV-J) is an avian oncogenic retrovirus that has led to severe economic losses in the poultry industry in China in recent decades. Here, using high throughput transcriptome sequencing of HD11 and CEF cells infected with ALV-J, a set of 4804 novel long non-coding transcripts and numerous differentially expressed long non-coding RNAs (lncRNAs) were identified. We also found that they share relatively shorter transcripts and fewer exon numbers compared to mRNA. Correlation analysis suggested that many lncRNAs may activate gene expression in an enhancer-like manner other than through transcriptional regulation...
June 30, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28637471/enhanced-humoural-and-cellular-immune-responses-to-influenza-h7n9-antigen-ha1-2-fused-with-flagellin-in-chickens
#2
Li Song, Dan Xiong, Maozhi Hu, Xilong Kang, Zhiming Pan, Xinan Jiao
BACKGROUND: Sudden increases in the number of human A (H7N9) cases reported during December and January have been observed in previous years. Most reported infection cases are due to prior exposure to live poultry or potentially contaminated environments. Low pathogenicity of influenza A (H7N9) virus in avian species complicates timely discovery of infected birds. Therefore, there is a pressing need to develop safe and effective anti-H7N9 vaccines for poultry to reduce the risk of human infection and prevent the emergence of novel mutated strains...
June 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28505246/effects-of-long-term-exogenous-testosterone-administration-on-ovarian-morphology-determined-by-transvaginal-3d-ultrasound-in-female-to-male-transsexuals
#3
Mirte R Caanen, Nienke E Schouten, Esther A M Kuijper, Joukje van Rijswijk, Marleen H van den Berg, Eline van Dulmen-den Broeder, Annelies Overbeek, Flora E van Leeuwen, Mick van Trotsenburg, Cornelis B Lambalk
STUDY QUESTION: Does long-term exogenous testosterone administration result in polycystic ovarian morphology (PCOM), determined by (3D) transvaginal ultrasound (TVU) in female-to-male transsexuals (FtMs). SUMMARY ANSWER: Long-term exogenous testosterone administration in FtMs does not result in PCOM determined by (3D) TVU. WHAT IS KNOWN ALREADY: The role of androgens in the pathophysiology of polycystic ovary syndrome (PCOS) is still unclear...
May 13, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28470089/contribution-of-the-csga-and-bcsa-genes-to-salmonella-enterica-serovar-pullorum-biofilm-formation-and-virulence
#4
Muhanad El Hag, Zheng Feng, Yangyang Su, Xiao Wang, Afrah Yassin, Sujuan Chen, Daxin Peng, Xiufan Liu
Salmonella biofilm formation is important to environmental stress resistance and virulence. However, the roles of the csgA and bcsA genes, which affect curli protein and cellulose production, respectively, in Salmonella enterica serovar Pullorum, are unknown. Here we constructed deletions in the csgA and bcsA genes in S. enterica serovar Pullorum strain S6702 and evaluated several aspects of biofilm formation and virulence. ΔcsgA showed decreased production of curli fimbriae, while ΔbcsA had reduced cellulose production...
June 5, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28418763/long-term-follow-up-of-contemporary-treatment-in-early-stage-hodgkin-lymphoma-updated-analyses-of-the-german-hodgkin-study-group-hd7-hd8-hd10-and-hd11-trials
#5
Stephanie Sasse, Paul J Bröckelmann, Helen Goergen, Annette Plütschow, Horst Müller, Stefanie Kreissl, Carolin Buerkle, Sven Borchmann, Michael Fuchs, Peter Borchmann, Volker Diehl, Andreas Engert
Purpose Combined-modality treatment is widely considered the standard of care in early-stage Hodgkin lymphoma (HL), and treatment intensity has been reduced over the last years. Long-term follow-up is important to judge both efficacy and safety of the different therapies used. Patients and Methods We analyzed updated follow-up data on 4,276 patients treated within the German Hodgkin Study Group trials HD7 and HD10 for early-stage favorable HL and HD8 and HD11 for early-stage unfavorable HL between 1993 and 2003...
June 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28332637/evaluation-of-the-immunomodulatory-activity-of-the-chicken-nk-lysin-derived-peptide-cnk-2
#6
Woo H Kim, Hyun S Lillehoj, Wongi Min
Chicken NK-lysin (cNK-lysin), the chicken homologue of human granulysin, is a cationic amphiphilic antimicrobial peptide (AMP) that is produced by cytotoxic T cells and natural killer cells. We previously demonstrated that cNK-lysin and cNK-2, a synthetic peptide incorporating the core α-helical region of cNK-lysin, have antimicrobial activity against apicomplexan parasites such as Eimeria spp., via membrane disruption. In addition to the antimicrobial activity of AMPs, the immunomodulatory activity of AMPs mediated by their interactions with host cells is increasingly recognized...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259699/chicken-il-26-regulates-immune-responses-through-the-jak-stat-and-nf-%C3%AE%C2%BAb-signaling-pathways
#7
Anh Duc Truong, Yeojin Hong, Cong Thanh Hoang, Janggeun Lee, Yeong Ho Hong
Chicken interleukin 26 (ChIL-26), a member of the IL-10 family, is expressed in T cells and can induce expression of proinflammatory cytokines. We examined the response of signal transduction pathways to ChIL-26 stimulation in the chicken T (CU91), macrophage (HD11), and fibroblast (OU2) cell lines. ChIL-26 activated JAK2 and TYK2 phosphorylation, as well as activation of STAT1, STAT3, and SHP2 via tyrosine/serine residues. We also showed that ChIL-26 activates the phosphorylation of NF-κB1, TAK1, and MyD88 kinase, which are key regulators of NF-κB signaling pathways...
March 2, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28024872/molecular-and-functional-characterization-of-pigeon-columba-livia-tumor-necrosis-factor-receptor-associated-factor-3
#8
Yingying Zhou, Xilong Kang, Dan Xiong, Shanshan Zhu, Huijuan Zheng, Ying Xu, Yaxin Guo, Zhiming Pan, Xinan Jiao
Tumor necrosis factor receptor-associated factor 3 (TRAF3) plays a key antiviral role by promoting type I interferon production. We cloned the pigeon TRAF3 gene (PiTRAF3) according to its predicted mRNA sequence to investigate its function. The 1704-bp full-length open reading frame encodes a 567-amino acid protein. One Ring finger, two TRAF-type Zinc fingers, one Coiled coil, and one MATH domain were inferred. RT-PCR showed that PiTRAF3 was expressed in all tissues, with relatively weak expression in the heart and liver...
December 23, 2016: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27914220/modulation-of-the-innate-immune-related-genes-expression-in-h9n2-avian-influenza-virus-infected-chicken-macrophage-like-cells-hd11-in-response-to-escherichia-coli-lps-stimulation
#9
Xuefeng Qi, Caihong Liu, Ruiqiao Li, Huizhu Zhang, Xingang Xu, Jingyu Wang
Macrophages play important roles in mediating virus-induced innate immune responses and are thought to be involved in the pathogenesis of bacterial superinfections. The innate immune response initiated by both low pathogenicity AIV and bacterial superinfection in their avian host is not fully understood. We therefore determine the transcripts of innate immune-related genes following avian H9N2 AIV virus infection and E. coli LPS co-stimulation of avian macrophage-like cell line HD11 cells. More pronounced expression of pro-inflammatory cytokines (IL-6 and IL-1β) as well as the inflammatory chemokines (CXCLi1 and CXCLi2) was observed in virus infected plus LPS treated HD11 cells compared to H9N2 virus solely infected control...
April 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/27795362/novel-microrna-involved-in-host-response-to-avian-pathogenic-escherichia-coli-identified-by-deep-sequencing-and-integration-analysis
#10
Xinzheng Jia, Qinghua Nie, Xiquan Zhang, Lisa K Nolan, Susan J Lamont
Avian pathogenic Escherichia coli (APEC) causes one of the most common bacterial diseases of poultry worldwide. Effective control methods are therefore desirable and will be facilitated by a better understanding of the host response to the pathogen. Currently, microRNAs (miRNAs) involved in host resistance to APEC are unknown. Here, we applied RNA sequencing to explore the changed miRNAs and deregulated genes in the spleen of three groups of broilers: nonchallenged (NC), APEC-challenged with mild pathology (CM), and APEC-challenged with severe pathology (CS)...
January 2017: Infection and Immunity
https://www.readbyqxmd.com/read/27738121/listeria-monocytogenes-infection-of-hd11-chicken-macrophage-like-cells
#11
N A Jarvis, J R Donaldson, C A O'Bryan, S C Ricke, P G Crandall
Listeria monocytogenes can be carried by and infect poultry, although the clinical disease in birds is rare. Escape from macrophage phagocytosis is a key step in pathogenesis for L. monocytogenes Therefore, we investigated the infection of the chicken macrophage-like cell line HD11 with 2 strains of L. monocytogenes EGD-e and Scott A. After infection, L. monocytogenes was quantified by spread plating and HD11 was quantified with trypan blue exclusion stain before enumeration. The standard macrophage killing protocols require washing the cell monolayers 3 times with PBS, which was found to negatively influence HD11 monolayers...
October 12, 2016: Poultry Science
https://www.readbyqxmd.com/read/27736938/heat-stress-and-lipopolysaccharide-stimulation-of-chicken-macrophage-like-cell-line-activates-expression-of-distinct-sets-of-genes
#12
Anna Slawinska, John C Hsieh, Carl J Schmidt, Susan J Lamont
Acute heat stress requires immediate adjustment of the stressed individual to sudden changes of ambient temperatures. Chickens are particularly sensitive to heat stress due to development of insufficient physiological mechanisms to mitigate its effects. One of the symptoms of heat stress is endotoxemia that results from release of the lipopolysaccharide (LPS) from the guts. Heat-related cytotoxicity is mitigated by the innate immune system, which is comprised mostly of phagocytic cells such as monocytes and macrophages...
2016: PloS One
https://www.readbyqxmd.com/read/27735192/influence-of-salmonella-enterica-serovar-pullorum-pathogenicity-island-2-on-type-iii-secretion-system-effector-gene-expression-in-chicken-macrophage-hd11-cells
#13
Junlei Yin, Yun Chen, Xiaolei Xie, Jie Xia, Qiuchun Li, Shizhong Geng, Xinan Jiao
Salmonella pathogenicity island 2 (SPI2) can encode type III secretion system 2 (T3SS2) which plays an important role in systemic disease development through delivering different effector proteins into host cells. Here, the influence of Salmonella Pullorum pathogenicity island 2 on T3SS2 effector gene expression was studied using qRT-PCR in chicken macrophage HD11 cells. Our results showed that all the detected genes (including pseudogenes sifB, sspH2 and steC) can express in HD11 cells of S. Pullorum infection; deletion of SPI2 of S...
April 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/27565525/bioactive-extracts-from-berry-byproducts-on-the-pathogenicity-of-salmonella-typhimurium
#14
Serajus Salaheen, Ekta Jaiswal, Jungsoo Joo, Mengfei Peng, Ryan Ho, Danielle OConnor, Katrina Adlerz, Jose Helim Aranda-Espinoza, Debabrata Biswas
The aim of this study was to evaluate the phenotypic and genotypic properties of Salmonella enterica serovar Typhimurium (ST) in the presence of lethal and sublethal concentrations (SLC2LOG) of blackberry (Rubus fruticosus) and blueberry (Vaccinium corymbosum) pomace extracts. Antimicrobial susceptibility, physicochemical properties, motility, biofilm formation ability, virulence gene expression patterns, and the ability of ST to colonize in chick cecum were evaluated in the presence of these bioactive extracts...
November 21, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27449156/initiation-and-regulation-of-immune-responses-to-immunization-with-whole-inactivated-vaccines-prepared-from-two-genetically-and-antigenically-distinct-lineages-of-egyptian-influenza-a-virus-subtype-h5n1
#15
Ahmed Samy, Mona I El-Enbaawy, Ahmed A El-Sanousi, Soad A Nasef, Hirokazu Hikono, Takehiko Saito
Following the introduction of highly pathogenic avian influenza (HPAI) virus subtype H5N1, the Egyptian government implemented a massive poultry vaccination campaign as the cornerstone of its policies to control the virus. The efficacy of vaccination has been evaluated primarily by measuring titers of antibodies inhibiting the hemagglutinating activity of the viral hemagglutinin (HA). However, other aspects of the host response remain poorly understood. In the present study, in addition to hemagglutination inhibition (HI) titers, cytokine profiles were examined and IFNγ concentrations were measured in vivo after immunization with a whole inactivated virus (WIV) prepared from a classical strain of clade 2...
October 2016: Archives of Virology
https://www.readbyqxmd.com/read/27325479/treatment-of-early-stage-unfavorable-hodgkin-lymphoma-efficacy-and-toxicity-of-4-versus-6-cycles-of-abvd-chemotherapy-with-radiation
#16
Jillian R Gunther, Michelle A Fanale, Jay P Reddy, Mani Akhtari, Grace L Smith, Chelsea C Pinnix, Sarah A Milgrom, Zeinab Abou Yehia, Pamela K Allen, Eleanor M Osborne, Osama Mawlawi, Bouthaina S Dabaja
PURPOSE: The German Hodgkin Study Group HD11 trial validated 4 cycles of doxorubicin, bleomycin, vinblastine, dacarbazine (ABVD) chemotherapy followed by involved field radiation therapy (IFRT) for early unfavorable Hodgkin lymphoma (HL) patients. However, practitioners often recommend 6 cycles followed by RT, especially for bulky disease. We compared patient outcomes after treatment with 4 or 6 cycles of ABVD followed by RT (IFRT and involved site RT [ISRT]). METHODS AND MATERIALS: We identified 128 patients treated for early unfavorable HL (GHSG criteria) between 2000 and 2013...
September 1, 2016: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/27163262/construction-and-characterization-of-a-cigr-deletion-mutant-of-salmonella-enterica-serovar-pullorum
#17
Junlei Yin, Jie Xia, Mingxin Tao, Lijuan Xu, Qiuchun Li, Shizhong Geng, Xinan Jiao
Salmonella enterica serovar Pullorum (S. Pullorum) is the causative agent of pullorum disease (PD) and results in severe economic losses to the poultry industry. As a Salmonella type III secretion system 2 (T3SS2) effector and predicted membrane protein, CigR is encoded by the cigR gene within Salmonella pathogenicity island 3 (SPI3). In order to research the influence of the cigR gene on S. Pullorum, a cigR mutant of S. Pullorum S06004 was constructed by the lambda Red recombination system, and then its characterization was analysed...
October 2016: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/27141235/the-salmonella-pathogenicity-island-13-contributes-to-pathogenesis-in-streptomycin-pre-treated-mice-but-not-in-day-old-chickens
#18
Jacob R Elder, Kim Lam Chiok, Narayan C Paul, Gary Haldorson, Jean Guard, Devendra H Shah
BACKGROUND: Salmonella enterica serovar Enteritidis (S. Enteritidis) is a human and animal pathogen that causes gastroenteritis characterized by inflammatory diarrhea and occasionally an invasive systemic infection. Salmonella pathogenicity islands (SPIs) are horizontally acquired genomic segments known to contribute to Salmonella pathogenesis. The objective of the current study was to determine the contribution of SPI-13 to S. Enteritidis pathogenesis. METHODS: We deleted the entire SPI-13 (∆SPI-13) from the genome of S...
2016: Gut Pathogens
https://www.readbyqxmd.com/read/26848845/immunomodulatory-and-anti-inflammatory-activities-of-chicken-cathelicidin-2-derived-peptides
#19
Albert van Dijk, Mandy van Eldik, Edwin J A Veldhuizen, Hanne L M Tjeerdsma-van Bokhoven, Marcel R de Zoete, Floris J Bikker, Henk P Haagsman
Host Defence Peptides and derived peptides are promising classes of antimicrobial and immunomodulatory lead compounds. For this purpose we examined whether chicken cathelicidin-2 (CATH-2)-derived peptides modulate the function and inflammatory response of avian immune cells. Using a chicken macrophage cell line (HD11) we found that full-length CATH-2 dose-dependently induced transcription of chemokines CXCLi2/IL-8, MCP-3 and CCLi4/RANTES, but not of pro-inflammatory cytokine IL-1β. In addition, CATH-2 efficiently inhibited IL-1β and nitric oxide production by HD11 cells induced by different sources of lipopolysaccharides (LPS)...
2016: PloS One
https://www.readbyqxmd.com/read/26502907/fimbria-encoding-gene-yadc-has-a-pleiotropic-effect-on-several-biological-characteristics-and-plays-a-role-in-avian-pathogenic-escherichia-coli-pathogenicity
#20
Renu Verma, Thaís Cabrera Galvão Rojas, Renato Pariz Maluta, Janaína Luisa Leite, Livia Pilatti Mendes da Silva, Gerson Nakazato, Wanderley Dias da Silveira
The extraintestinal pathogen termed avian pathogenic Escherichia coli (APEC) is known to cause colibacillosis in chickens. The molecular basis of APEC pathogenesis is not fully elucidated yet. In this work, we deleted a component of the Yad gene cluster (yadC) in order to understand the role of Yad in the pathogenicity of the APEC strain SCI-07. In vitro, the transcription level of yadC was upregulated at 41°C and downregulated at 22°C. The yadC expression in vivo was more pronounced in lungs than in spleen, suggesting a role in the early steps of the infection...
January 2016: Infection and Immunity
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