Sourav Pan
Opsonization is a important immune process in which harmful particles like bacteria, viruses, dead cells and damaged cells are coated by special proteins called opsonins. It makes the foreign particle easily recognized by the immune cells. This process helps in quick removal of the pathogen from the body. The major opsonins are antibodies and complement … Read more
Agglutination reaction is an immunological reaction where insoluble or particulate antigen combines with its specific antibody and forms visible clumping. In this reaction, the antigen may be present on RBC, bacteria or artificial carrier like latex beads. The antibodies are known as agglutinins and the antigen present on particle surface is called agglutinogen. The antibody … Read more
Capillary Electrophoresis (CE) is a separation technique. It is used for separation of ions and molecules present in a sample mixture. The separation is done inside a narrow tube called capillary. The capillary is filled with electrolyte buffer solution. In this method high voltage is applied at the two ends of the capillary. Due to … Read more
Fermentation media are nutrient preparations which are used for the growth and metabolic activity of microorganisms. It gives proper environment for bacteria, yeasts and fungi during fermentation. In this medium, microbes convert raw materials into useful products like cell biomass, antibiotics, enzymes, organic acids and pharmaceutical products. Fermentation media may be solid or liquid. In … Read more
Cancer immunotherapy is a type of cancer treatment that uses the body’s own immune system to identify and destroy cancer cells. It does not directly attack the tumour like chemotherapy and radiation therapy. It stimulates or restores the natural cancer fighting capacity of immune system. In this treatment, the immune cells mainly T-cells are activated … Read more
Tumor antigen is a molecule present in cancer cell. It may be present on cell surface or inside the cell. It is recognized by the immune system and helps to identify malignant cell from normal cell. These antigens are important in cancer immunotherapy. They act as target molecule. By this target, immune system can attack … Read more
Humoral immunity is a major part of adaptive immune system. It gives specific and long-lasting defence against extracellular pathogens and their toxic products. It mainly works in blood plasma and other body fluids. It is called humoral immunity because it depends on antibodies present in the fluid part of blood and extracellular body fluids. These … Read more
Immune response is the defense mechanism of body by which the body recognizes and removes harmful foreign particles or pathogens. It is activated when any foreign substances enter into the body by crossing the physical barriers. These foreign substances are called antigens. The antigens may be bacteria, viruses, fungi and parasites. The immune response is … Read more
Anatomical and physiological barriers are the first defence barrier of immune system. These barriers stop the entry of pathogen in the body tissue. It is present on the outer surface and also in different opening part of body. Anatomical barriers are mainly skin, hair, mucous membrane and epithelial lining. Skin is the outer covering of … Read more
Body lines of defense are the protective system of human body. It protect the body from foreign harmful agents like virus, bacteria and fungi. These harmful agents are called pathogens. The body has three main lines of defense. These are first line of defense, second line of defense and third line of defense. They work … Read more
