Question

what are antigen presenting cell?​

Answer 1

Answer:

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Antigen-presenting cells (APCs) are a heterogeneous group of immune cells that mediate the cellular immune response by processing and presenting antigens for recognition by certain lymphocytes such as T cells. Classical APCs include dendritic cells, macrophages, Langerhans cells and B cells.

Answer 2

ANSWER :-

Antigen presenting cells also known as APCs can simply be defined as the cells that engulf antigens and present fragments to the T cells.

EXTRA INFORMATION :-

• There are three types of antigen presenting cells in the human body, namely- Macrophages, Dendritic cells and B-cells.

• Macrophages are usually found in a resting state.

• Dendritic cells are characterised by their long cytoplasmic processes.

• "Steinman" was awarded the Nobel prize in the year 2011 for his discovery of the dendritic cell and it's role in adaptive immunity.

• B-cells are also known as plasma cells.

• Antibodies already produced by the descendants of B-cells.