Marek's Disease Virus–Induced Immunosuppression: Array Analysis of Chicken Immune Response Gene Expression Profiling

2010 ◽  
Vol 23 (3) ◽  
pp. 309-319 ◽  
Author(s):  
Mohammad Heidari ◽  
Aimie J. Sarson ◽  
Marianne Huebner ◽  
Shayan Sharif ◽  
Dmitry Kireev ◽  
...  
2002 ◽  
Vol 76 (3) ◽  
pp. 1062-1070 ◽  
Author(s):  
Aouatef Djeraba ◽  
Eugène Musset ◽  
John W. Lowenthal ◽  
David B. Boyle ◽  
Anne-Marie Chaussé ◽  
...  

ABSTRACT Marek’s disease virus (MDV) is a herpesvirus that induces T lymphomas in chickens. The aim of this study was to assess the role of the macrophage activator chicken myelomonocytic growth factor (cMGF) in controlling MDV infection. B13/B13 chickens, which are highly susceptible to MD, were either treated with cMGF delivered via a live fowlpox virus (fp/cMGF) or treated with the parent vector (fp/M3) or were left as untreated controls. Seven days later, when challenged with the very virulent RB-1B strain of MDV, the spleens of chickens treated with fp/cMGF showed increased expression of the inducible nitric oxide synthase (iNOS) gene compared to those of control chickens and fp/M3-treated chickens. Increased iNOS gene expression was also accompanied by greater induction of gamma interferon and macrophage inflammatory protein (K203) gene expression, both possible activators of iNOS. fp/cMGF treatment also increased the number of monocytes and systemic NO production in contrast to fp/M3 treatment. Even though cMGF treatment was unable to prevent death for the chickens, it did prolong their survival time, and viremia and tumor incidence were greatly reduced. In addition, cMGF treatment improved the partial protection induced by vaccination with HVT (herpesvirus isolated from turkeys) against RB-1B, preventing 100% mortality (versus 66% with vaccination alone) and greatly reducing tumor development. Treatment with fp/M3 did not have such effects. These results suggest that cMGF may play multiple roles in protection against MD. First, it may enhance the innate immune response by increasing the number and activity of monocytes and macrophages, resulting in increased NO production. Second, it may enhance the acquired immune response, indicated by its ability to enhance vaccine efficacy.


Blood ◽  
2008 ◽  
Vol 111 (9) ◽  
pp. 4764-4770 ◽  
Author(s):  
Richard J. Byers ◽  
Ebrahim Sakhinia ◽  
Preethi Joseph ◽  
Caroline Glennie ◽  
Judith A. Hoyland ◽  
...  

Abstract Microarray gene expression profiling studies have demonstrated immune response gene signatures that appear predictive of outcome in follicular lymphoma (FL). However, measurement of these marker genes in routine practice remains difficult. We have therefore investigated the immune response in FL using real-time polymerase chain reaction (PCR) to measure expression levels of 35 candidate Indicator genes, selected from microarray studies, to polyA cDNAs prepared from 60 archived human frozen lymph nodes, in parallel with immunohistochemical analysis for CD3, CD4, CD7, CD8, CD10, CD20, CD21, and CD68. High levels of CCR1, a marker of monocyte activation, were associated with a shorter survival interval, and high levels of CD3 with better survival, while immunohistochemistry demonstrated association of high numbers of CD68+ macrophages with a shorter survival interval and of high numbers of CD7+ T cells with a longer survival interval. The results confirm the role of the host immune response in outcome in FL and identify CCR1 as a prognostic indicator and marker of an immune switch between macrophages and a T cell–dominant response. They demonstrate the utility of polyA DNA and real-time PCR for measurement of gene signatures and the applicability of using this type of “molecular block” in clinical practice.


2014 ◽  
Vol 185 ◽  
pp. 10-22 ◽  
Author(s):  
András Balogh ◽  
Judit Bátor ◽  
Lajos Markó ◽  
Mária Németh ◽  
Marianna Pap ◽  
...  

2006 ◽  
Vol 12 (7-8) ◽  
pp. 185-195 ◽  
Author(s):  
Kevin McLoughlin ◽  
Ken Turteltaub ◽  
Danute Bankaitis-Davis ◽  
Richard Gerren ◽  
Lisa Siconolfi ◽  
...  

2007 ◽  
Vol 85 (11) ◽  
pp. 1091-1098 ◽  
Author(s):  
M. Altamirano-Dimas ◽  
J. B. Hudson ◽  
D. Cochrane ◽  
C. Nelson ◽  
J. T. Arnason

Echinacea extracts have traditionally been used in the treatment of many infectious and other diseases (such as rhinovirus colds), and research has revealed the presence of various bioactivities in these extracts, particularly those connected with immune responses. We examined the effects of Echinacea by using gene expression analysis in a line of human bronchial epithelial cells, with or without rhinovirus infection. More than 13 000 human genes were evaluated. From these analyses we focused primarily on immune response genes and found that both Echinacea extracts, one predominantly rich in polysaccharides and the other rich in alkylamides and caffeic acid derivatives, stimulated the expression of numerous genes. These included a number of cytokines and chemokines, although the pattern of stimulation was different. In addition, Echinacea extracts tended to neutralize the effects of the rhinovirus. When the immune response gene pathways were analyzed with the Ingenuity Pathway program, it became apparent that many of them were interconnected through a major node, the transcription factor C/EBPβ (CAAT/enhancer-binding protein β) and its related C/EBP proteins. This suggests that Echinacea can bring about important biological responses in cells by virtue of interactions between components of the extract and a small number of intracellular factors involved in multiple signaling pathways.


2003 ◽  
Vol 23 (4) ◽  
pp. 620-625 ◽  
Author(s):  
Michael Hilker ◽  
Tina Längin ◽  
Ulrich Hake ◽  
Franz-Xaver Schmid ◽  
Wlodzimierz Kuroczynski ◽  
...  

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