objective(s): tuberculosis is one of the most important infectious diseases with high mortality rates worldwide, especially in developing countries. interleukin17 (il-17) is an important acquired immunity cytokine, which is mainly produced by cd4+th17 cells. it can recruit neutrophils and macrophages to the infected site in the lungs. il-23 is one of the most important inducers of il-17. in the...

In just 10 years from its discovery in 2000, interleukin-23 has quickly moved from being recognized as a pro-inflammatory cytokine to a key player and potential therapeutic target in psoriasis.

The recent advances in the understanding of psoriasis pathogenesis have clarified the pivotal role of interleukin (IL)-23. It is a heterodimeric cytokine consisting of two subunits, the unique p19 and the p40, which are shared with IL-12. The basic role of IL-23 in psoriasis is the activation and maintenance of the T-helper 17 pathway. New research findings indicate that IL-23 is more important...

IL-23 and IL-12 are heterodimeric cytokines which share the p40 subunit, but which have unique second subunits, IL-23p19 and IL-12p35. Since p40 is required for the development of the Th1 type response necessary for resistance to Toxoplasma gondii, studies were performed to assess the role of IL-23 in resistance to this pathogen. Increased levels of IL-23 were detected in mice infected with T. ...

Background: Asthma is the chronic inflammation of airways characterized by eosinophilic infiltration, mucus overproduction, airway hyper-responsiveness and airway remodeling. These changes are induced mostly by cytokines which are produced by T helper (Th) 2 cells. Recently, the role of interleukin-23 (IL-23) in the pathogenesis of adultallergic asthma has been studied. Objective: To explore IL...

IL-23 is a heterodimeric cytokine composed of the IL-12p40 "soluble receptor" subunit and a novel cytokine-like subunit related to IL-12p35, termed p19. Human and mouse IL-23 exhibit some activities similar to IL-12, but differ in their capacities to stimulate particular populations of memory T cells. Like IL-12, IL-23 binds to the IL-12R subunit IL-12Rbeta1. However, it does not use IL-12Rbeta...