title: [Modification of complement components under the effect of cationic proteins from leukocytes from donors and leukemia patients].
abstract: Cation proteins (CP) were isolated from leukocytes by means of ion exchange chromatography. Enzyme immunoassay showed that these cation proteins modified C3 component of complement in vitro. CP obtained from healthy volunteers decreased the content of C3 purified by affinity chromatography and C3 of blood serum; however, content of C3.H2O op C3b-like form and C3a-fragment were not altered. Effect of CP isolated from leukocytes of patients with chronic myeloleukemia and chronic lympholeukemia on C3 component was less distinct as compared with that of healthy volunteers. At the same time, content of C3b-like form was increased the presence of CP from patients with myeloleukemia and of C3a-fragment--in the presence of the proteins from patients with lympholeukemia. Excess of physiologically active C3 fragments, developed under conditions of these diseases, may contribute to a decrease in unspecific body resistance.
authors.forename: L P
authors.initials: LP
authors.lastname: Rybakova
authors.forename: Iu V
authors.initials: IuV
authors.lastname: Tiagotin
authors.forename: S V
authors.initials: SV
authors.lastname: Goncharova
authors.forename: I N
authors.initials: IN
authors.lastname: Kulikova
authors.forename: A V
authors.initials: AV
authors.lastname: Trofimov
mesh_terms: D001798:Blood Proteins / Q000302:isolation & purification / Q000378:metabolism*; D002412:Cations; D002846:Chromatography, Affinity; D003165:Complement System Proteins / Q000378:metabolism*; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000097:blood*; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000097:blood*; D007962:Leukocytes / Q000378:metabolism*
chemical_list: D001798:Blood Proteins; D002412:Cations; D003165:Complement System Proteins
vernacular_title: Modifikatsiia komponentov komplementa pod deĭstviem kationnykh belkov leĭkotsitov donorov i bol'nykh leĭkozami.