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Keywords: leucocytes, a leukocytosis, oncoproteins, a leukosis, a leukemia, the abstract, a leukemoid test, hemoblastoses, oncoviruses, leukoses, physiopathology, pathological physiology, a lymphocyte, a lymphocytosis

Infringements of system of leucocytes. Hemoblastoses. Leukoses. Mechanisms of development

Key concepts

  1. Hemoblastoses (blastos - a germ, a blastemal) - the general name of the tumours which are starting with hemopoietic cells.
  2. the Leukosis (leukos - white) - typical pathological process which pathophysiological basis is the tumoral degeneration myeloid or an adenoid tissue (cells II, III, IV classes).
  3. the Leukemia (leukaemia; leukos - white, haima - a blood) - a leukemia, a sign of the leukosis, showing appearance in a peripheric blood of leukosis cells.
  4. the Leukosis cell (leucotica cellula) - pathologically changed blood cell being a cytologic substratum of a certain kind of a leukosis and described by functional, morphological, biochemical, cytogenetic and immunological features.
  5. Tumoral transformation of a cell- endocellular mechanisms of formation of the tumor cell from normal as a result of molecular changes of a genome (an expression of an oncogene).
  6. the Tumoral progression- extracellular mechanisms of formation of a tumoral tissue in organs of a hemopoiesis on a path of an intensive proliferation of leukosis cells. Progressing growth of a hemopoietic tissue descends as a result of infringement of a neurohumoral regulation of a hemogenesis (distress of regulate function of nervous system, a hormonal unbalance), the immune control.
  7. the Polycythemia true (polycytaemia vera; eritremija - erythraemia, erythros - red, haima - a blood) - the tumoral disease caused by a hyperplasia of an osteal brain (mainly erythrocyte germ), described by a hyperglobulia, a thrombocytosis, augmentation of mass of a circulating blood and amount of a haemoglobin.
  8. the Leukemoid test (a leukemia + eides - similar) - pathological reaction of the organism, showing sharply expressed augmentation of amount of unripe leucocytes (blastemic cells) at a background of rising of the general maintenance of leucocytes in a blood owing to intensifying a leukopoiesis.

Educational elements

I. A general characteristic of infringements of system of leucocytes

  • hemoblastoses
  • leukoses
  • leukemoid tests

II. Classification of leukoses

  1. on a degree of infringement of a differentiation of leukosis (tumoral) cells
    • acute forms
    • chronic forms
  2. on the struck hemopoietic germ
    • a myeloleukemia
    • a lymphoid leukosis
    • a monocytic leukosis
    • eritrolejkoz (eritremija)
    • megakariotsitarnyj a leukosis
  3. on a degree of a leukemia
    • leukemic
    • subleukemic
    • aleukemic
    • leukopenic

III. The causes of development of leukoses

  • the RNA, the DNA keeping oncoviruses
  • physical factors
  • radial energy, ultra-violet beams
  • chemical factors
  • aromatic hydrocarbons, benzene, products of an exchange of Thyrosinum, derivatives of a cholesterin, a tryptophan, steroid Hormonums
  • hereditary factors
  • aberation chromosomes

IV. Pathophysiological mechanisms of development of leukoses

  • mechanisms of tumoral transformation of a cell (endocellular mechanisms)
  • mechanisms of a tumoral progression (extracellular mechanisms)

V. Mechanisms of tumoral transformation of a cell

  • a mutation carcinogenesis
  • an expression of cellular regulate gene X at influence mutagen (physical, chemical) factors
  • superfluous formation of proliferating protein (oncoprotein)
  • epigenomnyj a carcinogenesis
  • influence of RNK-KEEPING viruses on a cell
  • formation of a repetition of a DNA (provirus) under influence revertazy
  • DNA replication
  • formation of the integrated genome
  • superfluous formation of proliferating protein (oncoprotein)
  • linkage by oncoproteins of cellular receptors
  • a disinhibition oncoproteins of an inhibitor of the cellular growth factor
  • deenergizing by oncoproteins of function of a cellular contact inhibition
  • inhibition oncoproteins of chalones
  • a stimulation of cellular division
  • formation of a clone of leukosis cells

VI. Mechanisms of a tumoral progression

  1. infringements of regulate function of a CNS
    • a stress, neurosises, depression
    • a stimulation tsGMF
    • an activation of proliferative processes
  2. hormonal infringements
    • a hyposecretion of corticotropin, glucocorticoids
    • a hypersecretion of Somatotropinum, Aldosteronum, oestrogens, an insulin
  3. infringements of regulate function of immune system
    • a depression of function of natural killers (Tk) and cytotoxic immunoglobulins (IgC)
    • rising of activity T-supressorov and quenching immunoglobulins
  4. a hyperplasia of a leukosis tissue

VII. The pathophysiological characteristic of a leukosis cell

  • functional features
  • tsitohimicheskie features
  • morphological features
  • immunological features
  • cytogenetic features

VIII. Features of a hemopoiesis and cellular structure of a peripheric blood at different kinds of leukoses

  1. a myeloleukemia
    • myeloblasts, promyelocytes, myelocytes, metamyelocytes, relating to stab neutrophile forms of neutrophils, bazofilno-eosinophilic association, a leukemic failure (hiatus leucaemicus)
  2. a lymphoid leukosis
    • lymphoblasts, prolymphocytes, Botkin - Gumprehta cells (a cell of lymphatic cytolysis)
  3. a monocytic leukosis
    • monoblasts, monocytes
  4. eritrolejkoz (eritremija)
    • erythroblasts
  5. megakariotsitarnyj a leukosis
    • megakaryoblasts, megacaryocytes, thrombocytes

IX. The basic infringements in an organism at leukoses, their mechanisms

  • gemicheskaja a hypoxia
  • a thrombocytopenia
  • bleedings, a hemorrhagic set of symptoms
  • development of the metastatic locuses in organs and tissues
  • dystrophic changes in tissues
  • downstroke of an immune responsiveness of an organism
  • cankers of a mucous oral cavity
  • a necrotic angina

X. Principles of diagnostics and therapy of leukoses

  1. diagnostics of leukoses
    • hematological diagnostics
    • tsitohimicheskaja, morphological, immunological, cytogenetic diagnostics
  2. therapy of leukoses
    • radial therapy, a chemotherapy, an immunotherapy

XI. The pathophysiological characteristic of leukemoid tests

  • kinds of leukemoid tests: myeloid, lymphoid, eosinophilic, monocytic
  • the causes of development of leukemoid tests
  • mechanisms of development of leukemoid tests
  • changes of a hemopoiesis and morphological structure of a peripheric blood at leukemoid tests
  • differences of leukemoid tests from leukoses
  • value of leukemoid tests for an organism

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Keywords: leucocytes, a leukocytosis, a leukosis, a leukemia, the abstract, a leukemoid test, oncoviruses, hemoblastoses, leukoses, physiopathology, pathological physiology, a lymphocyte, a lymphocytosis
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