Type I hypersensitivity reaction: mechanism and clinical manifestation
Type I hypersensitivity reaction: mechanism and clinical manifestation Type-I hypersensitivity reaction is an immediate type of reaction mediated by IgE. It is also known as […]
Immunology
Hypersensitivity and Types of Hypersensitivity reaction
Hypersensitivity and Types of Hypersensitivity reaction Hypersensitivity: When immune system works properly, it helps in elimination or removal of antigens from host body by means […]
Major histocompatibility complex (MHC): structure, types and functions
Major histocompatibility complex (MHC): structure, types and functions Major histocompatibility complex (MHC) is the cluster of gene arranged within a long continuous stretch of DNA […]
Antibody: Structure, classes and functions
Antibody: Structure, classes and functions Structure of antibody Antibodies are the globular protein belonging to immunoglobulin (Ig) family. Antibody molecules have a common structure […]
Cytokines: properties and receptors
Cytokines: properties and receptors Cytokines are low molecular weight (30KDa) regulatory protein or glycoprotein secreted by White blood cells and various other cells in body […]
Anatomical and Physico-chemical barriers of immune system
Anatomical and Physico-chemical barriers of immune system Anatomical barriers Skin and mucus membrane are the examples of anatomical barriers that provides immunity. Skin and mucus […]
Phagocytosis or Phagocytic barrier of immune system
Phagocytosis or Phagocytic barrier of immune system Phagocytosis is an important defense mechanism of host to provide immunity. Most of the bacteria that enter into […]
Immunity and its types: Innate and Acquired immunity
Immunity and its types: Innate and Acquired immunity Immunity is derived from Latin word “immunis” which means free from burden. In this case burden refers […]
Cells of immune system: Lymphocytes, phagocytic cell, granulocytes and dendritic cells
Cells of immune system: Lymphocytes, phagocytic cell, granulocytes and dendritic cells WBCs are the principle cells of immune system formed hematopoietic stem cell by the […]
Natural killer (NK) cell
Natural killer (NK) cell Natural Killer (NK) cells are large granular lymphocytes (LGL) present in small proportion in spleen and peripheral blood. Unlike T-cell and […]