Роль гиперметилирования генов в патогенезе билатеральных опухолей молочной железы
Диссертация
Особый интерес для молекулярно-генетических исследований представляет билатеральный рак молочной железы (БРМЖ), так как при этой форме заболевания две опухоли развиваются в пределах одного организма на фоне идентичных эндогенных и экзогенных воздействий. Кроме того, БРМЖ является самой частой формой первично-множественных опухолей у человека. Эпигенетические нарушения при БРМЖ практически… Читать ещё >
Содержание
- Список используемых сокращений и терминов
- Глава 1. Обзор литературы
- 1. 1. Метилирование ДНК в норме и в опухолях
- 1. 1. 1. Распределение метилированных и неметилированных оснований в геноме
- 1. 1. 2. ДНК-метилтрансферазы
- 1. 1. 3. Механизмы репрессии транскрипции
- 1. 1. 4. Основные функции метилирования в норме
- 1. 1. 5. Нарушения метилирования в опухолях
- 1. 2. Нарушения метилирования при раке молочной железы
- 1. 2. 1. Метилирование ЕБЮ при РМЖ
- 1. 2. 2. Метилирование ВКСА1 при РМЖ
- 1. 2. 3. Метилирование <ХЖ)2 при РМЖ
- 1. 2. 4. Метилирование ЯАЯЬ2 при РМЖ
- 1. 3. Билатеральный рак молочной железы
- 1. 3. 1. Эпидемиологические и клинические характеристики БРМЖ
- 1. 3. 2. Изучение конкордантности/дискордантности молекулярных нарушений при БРМЖ
- 1. 1. Метилирование ДНК в норме и в опухолях
- 2. 1. Исследуемые группы
- 2. 2. Выделение ДНК
- 2. 3. Выбор генов для исследования
- 2. 4. Анализ метилирования ДНК
- 2. 4. 1. Бисульфитная обработка ДНК
- 2. 4. 2. Пиросеквенирование
- 2. 5. Определение экспрессии мРНК ЕБШ
- 2. 5. 1. Выделение РНК
- 2. 5. 2. ПЦР в режиме реального времени
- 2. 6. Статистический анализ данных
- 3. 1. Общая оценка метилирования генов Е8Я1, ВЯСА1, ССЫЭ2, КАЯЬ в исследуемых группах
- 3. 2. Анализ корреляций между метилированием и возрастом
- 3. 3. Анализ конкордантности/дискордантности внутри билатеральных пар опухолей
- 3. 4. Анализ корреляций между метилированием ЕБЮ и внутриопухолевой экспрессией рецепторов эстрогенов
- 3. 5. Анализ корреляций между метилированием генов ЕБЮ, ВЯСА1,
- 3. 6. Анализ ассоциаций между метилированием и клинико-биологическими характеристиками опухолей молочной железы
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