نتایج جستجو برای: t cell immunodeficiency primary
تعداد نتایج: 2753082 فیلتر نتایج به سال:
co-infection of tuberculosis and leishmaniasis has been reported previously in patients with altered immune response due to primary or secondary immunodeficiency. these intracellular pathogens have a unique interaction in the host immune response and their development depends on impaired cell-mediated immunity. a case of chronic non-healing cutaneous ulcer with chronic fistulating soft-tissue m...
Although there is increasing evidence that individuals already infected with human immunodeficiency virus type 1 (HIV-1) can be infected with a heterologous strain of the virus, the extent of protection against superinfection conferred by the first infection and the biologic consequences of superinfection are not well understood. We explored these questions in the simian immunodeficiency virus ...
The link between autoimmune diseases and primary immunodeficiency syndromes has been increasingly appreciated. Immunologic evaluation of a young man with autoimmune enterocolopathy and unexplained infections revealed evidence of immunodeficiency, including IgG subclass deficiency, impaired Ag-induced lymphocyte proliferation, reduced cytokine production by CD8(+) T lymphocytes, and decreased nu...
EDITOR,-Immunodeficiency has been previously described in patients with ectodermal dysplasial; surprisingly it was not mentioned at all in the recent review article on ectodermal dysplasia in this journal.2 Immunodeficiency is not a constant feature in all patients with ectodermal dysplasia, it is often transient and variable and no consistent T or B cell abnormality has been found.' The exact ...
Primary immunodeficiency disorders are rarely diagnosed in adults but must be considered in the differential diagnosis of combined recurrent infections and autoimmune disease. We describe a patient with CTLA-4 haploinsufficiency and an abnormal regulatory T-cell phenotype. Unusually, infections were more severe than autoimmunity, illustrating therapeutic challenges in disease course.
Combination antiretroviral therapy during primary human immunodeficiency virus-1 infection may enable long-term drug-free virological control in rare individuals. We describe a female who maintained aviremia and a normal CD4(+)/CD8(+) T cell ratio for 10 years after stopping therapy, despite a persistent viral reservoir. Cellular immune responses may have contributed to this outcome.
We demonstrate that human immunodeficiency virus type 1 (HIV-1)-specific CD8(+) cytotoxic T lymphocytes (CTL) suppress HIV-1 replication in primary lymphocytes, monocytes, and dendritic cells individually. Viral inhibition is significantly diminished in lymphocyte-dendritic cell clusters, suggesting that these clusters in vivo could be sites where viral replication is more difficult to control ...
Invasive fungal infections (IFIs) cause high rates of morbidity and mortality in immunocompromised patients. Pattern-recognition receptors present on the surfaces of innate immune cells recognize fungal pathogens and activate the first line of defense against fungal infection. The second line of defense is the adaptive immune system which involves mainly CD4+ T cells, while CD8+ T cells also pl...
We have developed an immunotherapeutic approach with potential application in the treatment of viral and malignant disease. We show that primary CD8' T cells isolated from peripheral blood can be genetically modified by retroviral transduction to express high levels of universal (major histocompatibility complex-unrestricted) chimeric T-cell receptors specific for human immunodeficiency viru...
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