T cells in multiple sclerosis and experimental autoimmune encephalomyelitis Tập 162 Số 1 - Trang 1-11 - 2010
Jean M. Fletcher, Stephen J. Lalor, Cheryl Sweeney, Niall Tubridy, Kingston H. G. Mills
SummaryMultiple sclerosis (MS) is a demyelinating inflammatory disorder of the
central nervous system (CNS), which involves autoimmune responses to myelin
antigens. Studies in experimental autoimmune encephalomyelitis (EAE), an animal
model for MS, have provided convincing evidence that T cells specific for
self-antigens mediate pathology in these diseases. Until recently, T helper type
1 (Th1) ce... hiện toàn bộ
The role of T helper 17 (Th17) and regulatory T cells (Treg) in human organ transplantation and autoimmune disease Tập 148 Số 1 - Trang 32-46 - 2007
Behdad Afzali, Giulia Lombardi, Robert I. Lechler, Graham M. Lord
SummaryUncommitted (naive) murine CD4+ T helper cells (Thp) can be induced to
differentiate towards T helper 1 (Th1), Th2, Th17 and regulatory (Treg)
phenotypes according to the local cytokine milieu. This can be demonstrated most
readily both in vitro and in vivo in murine CD4+ T cells. The presence of
interleukin (IL)-12 [signalling through signal transduction and activator of
transcription (STA... hiện toàn bộ
Analysis of islet inflammation in human type 1 diabetes Tập 155 Số 2 - Trang 173-181 - 2009
Abby O’Connell, Sarah J. Richardson, Adrian J. Bone, Alan K. Foulis, Noel G. Morgan
Summary The immunopathology of type 1 diabetes (T1D) has proved difficult to
study in man because of the limited availability of appropriate samples, but we
now report a detailed study charting the evolution of insulitis in human T1D.
Pancreas samples removed post-mortem from 29 patients (mean age 11·7 years) with
recent-onset T1D were analysed by immunohistochemistry. The cell types
constituting ... hiện toàn bộ
Interferon-γ does not break, but promotes the immunosuppressive capacity of adult human mesenchymal stem cells Tập 149 Số 2 - Trang 353-363 - 2007
Jennifer Ryan, Frank Barry, Mary Murphy, Bernard P. Mahon
SummaryThe ability of mesenchymal stem cells (MSC) to suppress
alloresponsiveness is poorly understood. Herein, an allogeneic mixed lymphocyte
response was used as a model to investigate the mechanisms of MSC-mediated
immunomodulation. Human MSC are demonstrated to express the immunosuppressive
cytokines hepatocyte growth factor (HGF), interleukin (IL)-10 and transforming
growth factor (TGF)-β1 at... hiện toàn bộ
Tumour necrosis factor (TNF) gene polymorphism influences TNF-α production in lipopolysaccharide (LPS)-stimulated whole blood cell culture in healthy humans Tập 113 Số 3 - Trang 401-406 - 2001
Édouard Louis, Denis Franchimont, Anthony Piron, Y. Gevaert, Nicole Schaaf‐Lafontaine, Sandrine Roland, P Mahieu, Michel Malaise, Donat De Groote, Renaud Louis, Jacques Bélaïche
SUMMARYTNF-α is involved in infectious and immuno-inflammatory diseases.
Different individuals may have different capacities for TNF-α production. This
might determine a predisposition to develop some complications or phenotypes of
these diseases. The aims of our study were to assess the inter-individual
variability of TNF-α production and to correlate this variability to a single
base pair polymo... hiện toàn bộ
A marked difference in pathogenesis and immune response induced by differentMycobacterium tuberculosisgenotypes Tập 133 Số 1 - Trang 30-37 - 2003
Beatriz López, D Aguilar, Héctor Orozco, Marion Burger, Clara Espitia, Viviana Ritacco, L Barrera, Kristin Kremer, Rogelio Hernández‐Pando, Kris Huygen, Dick van Soolingen
SUMMARYIn the last decade, an unprecedented genetic diversity has been disclosed
among Mycobacterium tuberculosis strains found worldwide. However,
well-conserved genotypes seem to prevail in areas with high incidence of
tuberculosis. As this may be related to selective advantages, such as advanced
mechanisms to circumvent [M. bovis Bacille Calmette–Guerin (BCG)-induced] host
defence mechanisms, w... hiện toàn bộ
Quantitative analysis of peripheral blood Th0, Th1, Th2 and the Th1:Th2 cell ratio during normal human pregnancy and preeclampsia Tập 117 Số 3 - Trang 550-555 - 2001
Shigeru Saito, Masatoshi Sakai, Yasushi Sasaki, Kyoko Tanebe, Hiroshi Tsuda, T Michimata
SUMMARYWe calculated the percentage of Th1, Th2, Th0 cells and the Th1:Th2 cell
ratio of peripheral blood from normal pregnant subjects and preeclampsia
patients using flow cytometry which can analyse both the surface marker, CD4,
and intracellular cytokines, interleukin (IL)-4 and interferon (IFN)-γ. In
normal pregnancy, the percentage of Th1 cells was significantly lower in the
third trimester, ... hiện toàn bộ
Immunopathogenic mechanisms in psoriasis Tập 135 Số 1 - Trang 1-8 - 2003
Jóhann E. Guðjónsson, Andrew Johnston, Hekla Sigmundsdóttir, H Valdimarsson
SUMMARYPsoriasis is a common autoimmune skin disease characterized by T
cell-mediated hyperproliferation of keratinocytes. The disease has a strong but
complex genetic background with a concordance of approximately 60% in
monozygotic twins, and recent linkage and high resolution association studies
indicate that HLA-Cw*0602 is itself a major susceptibility allele for psoriasis.
Patients carrying t... hiện toàn bộ
The number of human peripheral blood CD4+ CD25high regulatory T cells increases with age Tập 140 Số 3 - Trang 540-546 - 2005
Randal K. Gregg, Christopher M. Smith, Fiona Clark, Debbie Dunnion, Naeem Khan, Ronjon Chakraverty, Laxman Nayak, Paul Moss
SummaryAgeing is associated with evidence of immune deficiency and
dysregulation. Key changes in the immune system with ageing include a
progressive reduction in naive T cell output associated with thymic involution
and peripheral expansion of oligoclonal memory T cells. These features are
associated with evidence of impaired immune responsiveness both in vitro and in
vivo, termed immune senescenc... hiện toàn bộ