il-22 is a member of il-10 cytokine family which is believed to play an important role in inflammatory responses. il-22 has similarities with il-10 including conserved sequences with il-10. il-22 receptor is also comprised of two chains known as l-22r1 and l-10r2; supporting the speculation that the two cytokines may have similar effects. the aim of this study was to shed some light on the biol...

t regulatory cells play a crucial role in immunological unresponsiveness to self- antigens and in suppressing excessive immune responses deleterious to the host. t regulatory cells are produced in the thymus as a functionally mature subpopulation of t cells. they can be induced from naive t cells in the periphery and express their marker as a forkhead/winged helix transcription factor called fo...

Objective(s): In addition to pro-inflammatory role, dendritic cells (DCs) can also be anti-inflammatory when they acquire tolerogenic phenotype. In this study we tested the role of CD40 and IL-23p19 in antigen presenting function of bone marrow-derived DCs (BMDCs) by comparing BMDCs derived from CD40 knockout (CD40KO-DCs) and IL-23p19 (IL-23p19KO-DCs) knockout mice wit...

Abstract Objective: In vitro cytokine production by peripheral blood mononuclear cells (PBMCs) is an important and reliable measure of immunocompetence. PBMC can be stimulated directly after isolation or frozen for later use. However, cryopreservation may affect cell recovery, viability functionality. This study aims to investigate synthesis in ex-vivo fresh cryopreserved CD4+ CD4- T cells. Met...

background: during antigen capture and processing, mature dendritic cells (dc) express large amounts of peptide-mhc complexes and accessory molecules on their surface. dc are antigen-presenting cells that have an important role in tolerance and autoimmunity. the transforming growth factor-beta1 (tgf-β1) cytokine has a regulatory role on the immune and non-immune cells. the aim of this study is ...

Background: Thermal burn injuries impair the host defence system. Hence, in the present study, we aimed at investigating the changes in the number and phenotype of peripheral blood lymphocyte populations (T, B, and natural killer cells) and their subpopulations in patients with thermal burns and determining the relationships with different sizes of total body surface area (TBSA).    ...