Dictionary > Lymphopoiesis

Lymphopoiesis

Definition
noun
The hematopoiesis of lymphocytes
Supplement
Hematopoiesis is the process of forming new blood cellular elements in vertebrates. The process starts at the stem cells becoming committed progenitor cells that eventually develop into fully mature differentiated cells in blood. In humans, the cellular elements of the blood include red blood cells, white blood cells, and thrombocytes. These cells are all derived from the multipotent hematopoietic stem cells (HSCs), which can give rise to different blood cell types. Lymphopoiesis, in particular, is hematopoiesis that leads to the formation of lymphocytes. In this regard, below is the series of stages in lymphocytes:
(1) A hemocytoblast gives rise to common lymphoid progenitor cells (CLP).
(2) The CLP give rise to CFU-lymphocyte (i.e. the colony forming unit that leads to the formation of lymphocytes).
(3) The CFU-lymphocyte gives rise to lymphoblasts.
(4) The lymphoblasts develop into prolymphocytes.
(5) The prolymphocytes develop into lymphocytes.
The lymphocytes may be grouped into two: small and large lymphocytes. The small lymphocytes include B lymphocytes and T lymphocytes. The B lymphocytes are involved in the production of antibodies in the humoral immune response. The T lymphocytes participate in the cell-mediated immune response. The large lymphocytes include the natural killer cells, i.e. cells involved in the innate immune response of vertebrates.
Word origin: lymph + poiesis (“to make”)
Synonym(s):

  • lymphocytopoiesis

See also:

  • lymphocyte
  • hematopoiesis
  • Related form(s):

    • lymphopoietic (adjective, of, pertaining to, or relating to lymphopoiesis)


    You will also like...

    A chart depicting Mendel's Law of Dominance
    Mendel’s Law & Mendelian Genetics

    One of Mendel’s law of inheritance is the “law of dominance”. Read this tutorial to know more about this form of i..

    Birth Control and Contraception
    Birth Control and Contraception

    Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

    Hormone Production
    Hormone Production

    Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..

    Plant Water Regulation
    Plant Water Regulation

    Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

    Thermographic image of face and neck
    Regulation of Organic Metabolism, Growth and Energy Balance

    The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

    Population Regulation in an Ecosystem
    Population Regulation in an Ecosystem

    With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..