What are T cells?

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Researchers have recently devised a novel approach to reduce T cell fatigue even in cancers that are resistant to clinically approved immunotherapies.

About T cells:

  • T cell is a type of white blood cell.
  • It is also called T lymphocyte and thymocyte.
  • T cells are part of the immune system and develop from stem cells in the bone marrow.
  • They help protect the body from infection and may help fight cancer.
  • There are two main types:
    • Cytotoxic T-cells: Destroy infected cells.
    • Helper T-cells: Send signals that direct other immune cells to fight infection.
  • Rather than generically attack any antigens, T cells circulate until they encounter their specific antigen.
  • T-cells have many identical T-cell receptors that cover their surfaces and can only bind to one shape of antigen.
  • When a T-cell receptor fits with its viral antigen on an infected cell, the Killer T-cell releases cytotoxins to kill that cell.


Q1) What are stem cells?

Stem cells are special human cells that are able to develop into many different cell types. This can range from muscle cells to brain cells. In some cases, they can also fix damaged tissues.

Source: New method To Help Overcome Resistance Treatment In Cancer Found