multiple sclerosis is an autoimmune disease of the central nervous system which is accompanied by demyelinating the neurons. the imbalance between the t cell effectors and t cell regulators is thought to have a role in the pathogenesis of the disease. melatonin is a hormone that is secreted by pineal gland which has an important role in circadian rhythm and immune-modulatory effects. melatonin ...

The human immune system mobilizes a broad repertoire of innate and adaptive responses to protect against the universe of pathogens it encounters. Central to these protective responses are its mechanisms to distinguish self from nonself. This overview describes the major mechanisms used by the immune system to respond to invading microbes and identifies settings in which disturbed immune functio...

Animals need a well-functioning immune system to protect themselves against pathogens. The immune system, however, is costly and resource trade-offs with other demands exist. For migratory animals several (not mutually exclusive) hypotheses exist. First, migrants reduce immune function to be able to allocate resources to migration. Second, migrants boost immune function to cope with more and/or...

We investigate the evolution of viral strategies to counteract immunological attack. These strategies can be divided into two classes: those that impair the immune response inside or at the surface of a virus-infected cell and those that impair the immune response outside an infected cell. The former strategies confer a "selfish" individual selective advantage for intra-host competition among v...

Development of "immune-based targeted therapy" in oncology has limited experience with signal pathway modulation. However, as we have become better versed in understanding immune function related to anticancer response, "hints" of specific targets associated with sensitivity and resistance have been identified with targeted immune therapy. This brief review summarizes the relationship of severa...

The innate immune system provides defence against parasites and pathogens. This defence comes at a cost, suggesting that immune function should exhibit plasticity in response to variation in environmental threats. Density-dependent prophylaxis (DDP) has been demonstrated mostly in phase-polyphenic insects, where larval group size determines levels of immune function in either adults or later la...

the immunopathology of sarcoidosis remains elusive despite years of research into this multiorgan disease.however, recent studies have provided new insights into the genetics and immune components involved in the clinical manifestation of the disease. granulomatous inflammation is due to the host immune response to a persistent poorly degradable unknown antigen.mycobacterium tuberculosis (mtb) ...