Immunity- Immune System and Immunization

Immunity- Immune System and Immunization

The Immunity Phenomenon Mechanism of Immunity As much as immunity curtails to the 430 B.C, significantly improved immunity phenomenal were made in the 18th century starting with Edward Jenner in 1798 after he noticed that milkmaids that had contracted the mild-disease of cowpox, were immune to smallpox (a fatally deadly disease). He practically inoculated cowpox … Read more

Hematopoiesis and Cells of the Immune system

Cells of the Immune system

What are the cells of the Immune system? The immune system is made up of different immune organs and tissues located all over the body. The immune organs are categorized based on their functions and there are two main categorize, which include: Primary lymphoid organs provide a development and maturation site for lymphocytes, and Secondary … Read more

Active and Passive Immunity- Definition, Types, Differences

Active and Passive Immunity- Definition, Types, Differences

Immunity Definition Immunity can be defined as the ability of a multicellular organism’s body to protect themselves from foreign agents and infectious agents, by being able to destroy them to prevent further body infections. Immunity to infectious microorganisms can be achieved by active or passive immunization. In each case, immunity can be acquired either by … Read more

Antibodies- Definition, Structure, Types, Forms, Functions

Antibodies- Definition, Structure, Types, Forms, Functions

Introduction and History for Antibodies These are protein molecules naturally produced or synthesized by the B-lymphocytes. They are also known as Immunoglobulins. The use of the term antibody defines an Immunoglobulin molecule that has specificity for an epitope of the molecules that make up antigens. Produced and secreted by plasma cells, antibodies are soluble molecules … Read more

Antigens- Definition, Properties, Types & Antigen Recognition

Antigens- Definition, Properties, Types & Antigen Recognition

Antigens Definition An antigen is a substance or an element that has the ability to induce an immune response. Antigens are foreign substances and they are known to provoke the immune system to produce proteins known as antibodies, which act upon these antigens to eliminate them from the host. Antigens are foreign, which means that … Read more

MHC Molecules, Antigen Processing and Presentation

MHC Class I and II Pathways

Major Histocompatibility Complex (MHC) molecules characteristics The Major Histocompatibility complex is a genetic locus that encodes the glycoprotein molecules (transplantation antigens) which are responsible for tissue rejection of grafts between genetically unidentical individuals. It is also the molecule that binds the peptide antigens processed by Antigen-presenting Cells and presents them to T-cells, hence they are … Read more

Monoclonal Antibodies- Definition, Types, Production, Applications

Production of monoclonal antibodies

What are Monoclonal antibodies? The body naturally produces antibodies, which are elements of the immune system produced by B-lymphocytes, that bind to foreign proteins in the body known as antigens, which the aim of eliminating them. They naturally circulate in the body searching for foreign bodies (antigens) and ones they attach to the antigen, they … Read more