Immunity Group 5: B-cells, macrophages, dendritic cells

B-cells fight bacteria and viruses by making Y-shaped proteins called antibodies, which are specific to each pathogen and are able to lock onto the surface of an invading cell and mark it for destruction by other immune cells.

Macrophages

Located in connective tissue

Functions:

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Amplify the immune response but do not have memory of the encountered antigen

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Messenger between inflammatory response
and immune response

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Dendritic Cells

White Blood Cell found in skin, one mucosa, and in blood

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Two main types:
Plasma cell: Produces specific antibodies
B-memory cell: Retains the memory of previously encountered antigen and will clone itself in the presence of antigen

Langerhans cell disease has specialized dendritic cells

The main functions of B cells are:

to make antibodies against antigens,

to perform the role of antigen-presenting cells (APCs),

to develop into memory B cells after activation by antigen interaction.

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Messenger between innate immunity and acquired immunity

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