Immune Responses to Pathogens
Immune responses to pathogens: The function of the immune system is to protect humans from foreign agents and infectious organisms. The immune system consists of two functional mechanisms:
- Innate or non-specific immune system
Adaptive or specific immune system
The innate immune system
The workings of the innate immune system provide a first line of defense against infection. Physical barriers to infection include skin, which prevents pathogen penetration, and bodily fluids like mucus, which collect and clear pathogens.
There are also a number of cellular and biochemical components, including complement proteins, innate leukocytes and phagocytic cells, which used to identify and eliminate pathogens from the body.
The adaptive immune system
The adaptive immune system is triggered when the innate system fails to clear pathogens from the body. It consists of a variety of cells and molecules, among which lymphocytes and antibodies are the key elements. Lymphocytes arise continuously from progenitor cells in the bone marrow. Lymphocytes synthesize cell surface receptors that specifically bind to foreign molecules. These secreted proteins are known as antibodies. The molecule which bind to an antibody is called an antigen. Pathogens bound to antibodies are marked for clearance or destruction. The functions of the adaptive immune system can be grouped into three basic types: B cells, Cytotoxic T cells (TC cells), Helper T cells (Th cells).
Related Conference of Immune Responses to Pathogens
Immune Responses to Pathogens Conference Speakers
- Antimicrobial Resistance and its Consequences
- Cancer Pathogenesis
- Food Pathogenesis
- Host- Pathogen Interaction
- Immune Responses to Pathogens
- Infection Prevention and Control
- Intracellular pathogenesis
- Microbial Pathogenesis
- Molecular Pathology
- Pathogenic Variability in Hosts
- Pathology of Devices
- Renal Pathology
- Zika Virus- Emerging Infectious Diseases