эффективное лечение рака

The direction of action of fiber Е6 (супрессорное or трансактивирующее) is defined{determined} by character, position and number of sites of linkage транскрипционных factors in promotors. The promotor р97 (ВПЧ type 16) can play a role in maintenance of a latent condition of a virus infection. With онкобелком Е6 ВПЧ types 16 and 18 7 cellular fibers cooperate at least, now from them 3 cellular fibers are identified: р53, Е6-АР, Е6-ВР. The gene р53 is associated both with the control of cellular growth, and with неопластической transformation; делеции or mutations in some cases transform р53 in active онкоген. Not all malignant tumours have mutations р53, the alternative mechanism инактивации р53 however is proved by linkage with онкобелком Е6 ВПЧ types 16 and 18, that results in loss of the control for пролиферацией cells{cages}. Cellular fiber Е6-АР (Е6 associated protein) in a complex with онкобелком Е6 participates in degradation р53, and also, probably, shortens the period полужизни and reduces a level р53 in ВПЧ-иммортализованных cells{cages}. Fiber Е6-ВР (E6-binding protein) cooperates with gene Е6 ВПЧ of types 16 and 18, that in result results in inhibition of process of a differentiation of cells{cages} and, probably, creates conditions for репликации virus ДНК. Подробнее...

For the first time serious assumptions of a possible{probable} role of viruses of papillomas in development РШМ have been stated in the middle of 70th years. It is necessary to emphasize, that definition of concept " a virus as этиологический the factor of development of a tumour " is based on a combination of the following criteria: 1) regular detection in tumoral cells{cages} virus ДНК (both in integrated, and in эписомальной to the form); 2) клонированные virus genes in cellular systems in vitro should induce malignant transformation of cells{cages}, including cells{cages} of the person; 3) regular экспрессия virus genes in tumoral cells{cages}; 4) existence in the nature of the similar viruses, capable to induce formation{education} of tumours at эксперементальных animals; 5) the epidemiological data confirming communication{connection} between tumoral process and presence of a virus genetic material in tumoral cells{cages}. The technique of molecular cloning has allowed to create a physical card{map} of viruses with the help эндонуклеаз, to define{determine} a site and sequence of the proteins coded by a virus [13,19.] has been shown, that in cells{cages} РШМ by a gene of a virus is actively transcribed, and crucial importance for development РШМ has персистенция virus генома [23]. The cellular lines received from a tumoral fabric шейки of a uterus, allow to carry out{spend} the comparative analysis of lines and tumours on персистенцию virus ДНК, function and экспрессию genes ДНК of a virus of a papilloma of person (ВПЧ). In fabrics эпителиальных дисплазий and карцином шейки a uterus during tumoral transformation regulation of a transcription virus онкогенов is broken, that is shown by quantitative distinctions in экспрессии early genes Е6 and Е7, playing the basic role in an induction of malignant growth of cells{cages} [22]. Подробнее...