[THERAPEUTIC POTENTIAL OF ALPHA-INTERFERON PREPARATIONS DUR- ING SOCIALLY-SIGNIFICANT HUMAN DISEASES OF VIRAL ETIOLOGY].

Interferons (IFN) belong to key cytokines of innate and adaptive immune response and play an important role in anti-viral and anti-tumor protection. At the same time, they possess a pro- nounced immune-modulating, anti-proliferative and anti-fibrotic effect. A general comparative characteristic of human IFN type I (α/ß), IFN type II (γ) and IFN type III (λ) and nosological directionality of contemporary drugs created on their base is examined in the review. Epidemiologic parameters for main socially-significant human diseases of viral etiology are presented: influenza and other ARVIs, herpes infection, chronic viral hepatitis B, C and D. Main attention is given to analysis of effectiveness of therapeutic application of preparations based on IFNα during the in- dicated infections, a specter of main IFNα induced side effects is listed. Recent achievements on the path of creation of principally new drugs based on IFN, that have lower toxicity and higher clinical effectiveness, as well as perspectives of application of preparations based on recombinant IFN for therapy of potentially, dangerous diseases are examined.

[A PERSPECTIVE CULTURAL MODEL FOR CONTROL OF BIOLOGICAL ACTIVITY OF HUMAN INTERFERONS].

AIM: Study species specificity of human lymphocyte interferon alpha in vitro in cell cultures of swine origin for expansion of cell line spectrum for interferon titration and control of newly created interferons and interferon-like preparations in vivo in mini-pig model. MATERIALS AND METHODS: Cell cultures of various species origin were used: Vero (monkey kidney), MDBK (bull kidney), HEK 293T (human embryo kidney), PK-15 (swine kidney), SPEV(swine embryo kidney), PTP (swine testicles), MDCK (canine kidney), RK-13 (rabbit kidney). Human lymphocyte interferon alpha (hINF-alpha) from Biomed company (1000 IU/ml), established in MDBK cells, was tested. Vesicular stomatitis virus (Indiana strain) was used. Human plasma was obtained from heparin-treated venous blood in the process of human peripheral blood lymphocyte isolation in medium for lymphocyte separation (Ficoll with a density of 1.077 g/cm3). RESULTS: Vesicular stomatitis virus, adapted to Vero cells, was established to have the least active reproduction in Vero and MDBK and reproduces more actively in cell of swine origin by 0.25 - 0.75 lg TCD50. At the same time, virus, adapted to cells of swine origin, reproduces more actively by 2 - 3 lg TCD50 in both cells of swine origin and Vero and MDBK. CONCLUSION: A possibility of titration of hINF-alpha in cells of swine origin was shown for both 100 doses of the indicator virus and low virus doses (5 and 10). This allows to determine low titers of hINF-alpha in blood plasma as one of the important indicators of interferon status--sera hINF-alpha.

[Characterization of antirubella vaccine in an epidemiological trial]. / Kharakteristika vaktsiny protiv krasnukhi v épidemiologicheskom opyte.

The work was aimed at the evaluation of the antigenic activity and reactogenicity of antirubella vaccine, manufactured by the Serum Institute of India, on the basis of the active observation of 373 children. Vaccinal reactions were registered in 8.8% of the vaccinees. Seroconversion after the injection of the vaccine was 100%. The results of the epidemiological trial demonstrated that the Indian antirubella vaccine was faintly reactogenic and had high antigenic activity.