Natural killer cells: history and current status
Natural killer cells are a major component of the immune system, which play important roles in host defense against cancer and microbial infections. Natural killer cells are distinct from T or B lymphocytes, with a characteristic morphology of large granular cells, and can be readily identified by characteristic cell surface molecules. (more…)
The body's innate resistance to many pathogens is provided by enzymes and other proteins in the blood and tissue fluids. These ...
Innate immunity depends on both resident and recruited leukocytes. The macrophage without doubt plays an import- ant role in the de ...
Some of the immediate sequelae of injury are uncomfortably familiar: Soon after an injury occurs, the affected site and its sur ...
Regulatory T cells Treg (picture above) is the existence of suppressor cells, which limit ongoing immune responses and prevent ...
Contact of pathogens with the innate immune system will most frequently occur at epithelia, and the biology of the airway epitheliu ...
Bacteria cause allergic disease because of toxicity, invasiveness, immunopathology, or lends of these three mechanisms. Thus much of the interaction between a given bacterial species and the cellular immune response can be predicted by considering the immunological mechanisms available in relation to the mechanism of pathogenicity, and the structure of the bacterium. For a toxigenic bacterium, neutralizing antigen & antibody may be all that is needed. Otherwise destruction of the organism itself may be required. (more…)
One especially favored target for immune recognition is bacterial lipopolysaccharide (LPS). This macromolecule is found only in ...
Exotoxins are noxious proteins secreted by many bacteria. These toxins are often heat-labile and thus can be heat-inactivated f ...
Innate immune responses are seen in a very broad range of tissues. Indeed, the Toll-like receptors (TLRs, one of the most important ...
An especially elaborate and important type of innate antimicrobial enzymes defense is provided by a group of serum proteins tha ...
Once it is tethered onto the venule wall, the neutrophil or other leukocyte comes into contact with a wide variety of inflammatory ...
Immune system is your body’s defense mechanism to protect from infectious organism and other living object invaded your body. The body reacts through several cellular immune response, and immune system attacks those foreign objects which may cause disease. Immune system consisted of network cells, skins, tissue and organs which work closely to protect body. How immune system works?
Immune system is so important for us to survive since we are surrounded by virus, fungus, parasite and bacteria which always trying to break into our body. (more…)
Antibodies which are also known as immunoglobulin are found in our blood and other bodily fluids. Antibodies are used as a mechan ...
B cells The main function of B cells is to produce antibodies. Antibodies are complex molecules produced by the immune syste ...
Allergens are the trigger for human body allergic reaction. It is one of human immunological process to react for invader subst ...
Serodiagnosis of bacterial diseases is of value only in specific circumstances. IgG antibody is long-lived, and its presence, a ...
The Case For a Healthy Immune System The immune system is made up of a complex network of cells and organs that protect the ...
Recently, UK Department of Health has circulated advice aimed at reducing the development of peanut allergy. The advice, based on an expert-committee report, is that pregnant women “may wish” to avoid eating peanuts or foods containing peanut products if they or the father or siblings of the unborn child are atopic. The same advice is given for the lactation period.
Are your children having peanut allergies? If yes, and you are new to this things, you are advised to look for some guidance. ...
A paradigm of immune development underlies allergy development and progression in early childhood. Briefly, the immune system o ...
A better detection, the least restrictive health food allergies choices, specific measures of allergy prevention, and teaching ...
Asthma and allergic diseases are common in both children and adults. Their development depends on an interaction between asthma ...
A cross-sectional, descriptive, questionnaire-based survey was conducted in schools in Toulouse, France, to determine the preva ...