NK lymphocytes (CD56) in the blood

, medical expert
Last reviewed: 19.11.2021

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Normally, the number of CD56-lymphocytes in the blood in adults is 9-19%.

CD56-lymphocytes are cell-effectors of cellular immunity, responsible for antiviral, antitumor and transplantation immunity (see above CD16-lymphocytes). Reducing the number of CD56-lymphocytes leads to the development of cancer and weighting of the course of viral infections.

Diseases and conditions leading to changes in the number of CD56-lymphocytes in the blood

Increase in the

Decrease in the indicator

Activation of antigraft implantation immunity:

  • crisis of rejection of donor
  • organs in recipients;
  • amplification of antibody-dependent
  • cell-mediated
  • cytotoxicity

Oncological diseases

Secondary immunodeficiency states.

HIV infection

Congenital defects of the immune system

Severe viral infections

Heavy burns, injuries, stress

Treatment with cytostatics, immunosuppressants, glucocorticosteroids

Ionizing radiation

trusted-source[1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12]

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