Sökning: "T cell suppression"

Visar resultat 1 - 5 av 140 avhandlingar innehållade orden T cell suppression.

1. 1. Role of Inducible Nitric Oxide Synthase and Melatonin in Regulation of β-cell Sensitivity to Cytokines

   Författare :Annika K. Andersson; Stellan Sandler; Nils Welsh; Décio L. Eizirik; Nils Billestrup; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell biology; β-cell; Cyclooxygenase; Cytokine; Diabetes; IFN-γ; IL-1β; iNOS; Insulin; Melatonin; Nitric oxide; Pancreatic islets; Phospholipase D; Prostaglandin E2; Streptozotocin; Cellbiologi; Cell biology; Cellbiologi;

   Sammanfattning : The mechanisms of β-cell destruction leading to type 1 diabetes are complex and not yet fully understood, but infiltration of the islets of Langerhans by autoreactive immune cells is believed to be important. Activated macrophages and T-cells may then secrete cytokines and free radicals, which could selectively damage the β-cells. LÄS MER

3. 2. A Study of Eosinophils – From the Human Thymus to Eosinophilic Esophagitis

   Författare :Sofie Albinsson; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Eosinophil; Eosinophilic esophagitis; Galectin-10; Human; Patient-reported outcome; T cell; Thymocyte; Thymus;

   Sammanfattning : Eosinophils are cells of the innate immune system. They primarily reside within tissues and are most numerous in the gastrointestinal tract but are absent from the healthy esophagus. During the inflammatory disease eosinophilic esophagitis, eosinophils infiltrate the esophagus but their function is unknown. LÄS MER

4. 3. Recognition requirements and regulatory events directing T cell responses

   Författare :Martin Gullberg; Eva-Lotta Larsson; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; T cell growth factor production; Lyt-2-positive T suppressor cell; Lyt-2-positive cytotoxic T lymphocytes; activation requirements of T lymphocytes; blocking of T cell functions;

   Sammanfattning : The present study has considered cellular and molecular requirements in T cell responses. The central role of T cell growth factors (TCGF) in T cell responses prompted us to study the regulatory events directing TCGF production in lectin stimulated cultures. LÄS MER

5. 4. T cell Tolerance - Cellular and molecular features of immune regulation

   Författare :Susanna Grundström; Immunologi; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; transplantation; Immunologi; serologi; serology; Immunology; JAK STAT.; NFkB; suppression; IL-2; superantigen; T cells; tolerance;

   Sammanfattning : The immune system has evolved regulatory mechanisms in order to balance the effects of deleterious immune responses. Such immunological tolerance may be specifically acquired by lymphocytes, although different cells of the immune system participate in the induction and maintenance of tolerance. LÄS MER

7. 5. B cell repertoire development in normal physiology and autoimmune disease

   Författare :Åsa Andersson; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; B cell repertoire; connectivity; natural antibodies; non-obese diabetic NOD ; Ig therapy; Vh7183 gene family;

   Sammanfattning : The B cell repertoire in the neonatal immune system (IS) is characterised by reactivity towards self-components, including other immunoglobulin (Ig) V-regions. These properties have been suggested to be a requirement for the development of a normal immune system. LÄS MER