Роль актин-связывающего белка кортактина в регуляции эпителиальных натриевых каналов (ENaC)
Диссертация
Илатовская Д. В., Павлов Т. С., Левченко В. В., Негуляев Ю. А., Старущенко А. В. Актин-связывающий белок кортактин регулирует эпителиальные натриевые каналы при участии комплекса Агр2/3. 15-я международная школа-конференция молодых ученых «Биология — наука XXI века», Пущино, Сборник тезисов, с. 129—130, 2011. Активность Е№С, нативно экспрессирующихся в иммортализованных и свежевыделенных клетках… Читать ещё >
Содержание
- ВВЕДЕНИЕ
- 1. 1. Актуальность исследования
- 1. 2. Цели и задачи исследования
- 1. 3. Основные положения, выносимые на защиту
- 1. 4. Научная новизна
- 1. 5. Теоретическое и практическое значение работы
- 1. 6. Апробация работы
- 1. 7. Публикации и личный вклад автора
- 1. 8. Объем и структура диссертации
- 1. 9. Финансовая поддержка
- 2. ОБЗОР ЛИТЕРАТУРЫ
- 2. 1. Транспорт натрия в собирательных трубочках почки
- 2. 1. 1. Общая структура нефрона. Собирательные трубочки почки
- 2. 1. 2. Транспорт натрия в собирательных трубочках почки
- 2. 2. Эпителиальные натриевые каналы: молекулярная организация, биофизические характеристики и физиологическая роль
- 2. 2. 1. Суперсемейство дегенерины/эпителиальные натриевые каналы
- 2. 2. 2. Физиологическая значимость ЕЫаС и болезни, опосредованные патологиями в структуре/регуляции канала
- 2. 2. 3. Молекулярная организация эпителиальных натриевых каналов
- 2. 2. 4. Стехиометрия эпителиальных натриевых каналов
- 2. 2. 5. Биофизические характеристики эпителиальных натриевых каналов: селективность, кинетика, фармакология, взаимодействие с блокирующими агентами
- 2. 3. Некоторые механизмы регуляции эпителиальных натриевых каналов
- 2. 3. 1. Альдостерон-зависимая регуляция эпителиальных натриевых каналов
- 2. 3. 2. Модуляция активности эпителиальных натриевых каналов посредством убиквитинирования и деубиквитинирования
- 2. 3. 3. Роль протеолитического расщепления в регуляции эпителиальных натриевых каналов
- 2. 3. 4. Механочувствительность эпителиальных натриевых каналов
- 2. 4. Регуляция натриевых каналов посредством актинового цитоскелета
- 2. 4. 1. Роль кортикального актина в регуляции натриевых каналов в клетках миелоидной лейкемии К
- 2. 4. 2. Роль актинового цитоскелета в регуляции эпителиальных натриевых каналов
- 2. 5. Актин-связывающий белок кортактин и комплекс Агр2/
- 2. 5. 1. Участие кортактина в регуляции ионных каналов
- 2. 5. 2. Белковый комплекс Агр2/3 и его химические ингибиторы
- 2. 1. Транспорт натрия в собирательных трубочках почки
- 3. 1. Клеточные культуры
- 3. 2. Реагенты и антитела
- 3. 2. 1. Антитела
- 3. 2. 2. Реагенты и плазмиды
- 3. 3. Выделение собирательных трубочек почки крысы
- 3. 4. Электрофизиологические методы
- 3. 4. 1. Метод патч-кламп
- 3. 4. 2. Измерение трансэпителиального потенциала
- 3. 4. 3. Растворы, использованные в электрофизиологических экспериментах
- 3. 5. Молекулярно-биохимические методы
- 3. 5. 1. Измерение цитотоксичности
- 3. 5. 2. Выделение белков
- 3. 5. 3. Коиммунопреципитация
- 3. 5. 4. Выделение белков плазматической мембраны
- 3. 5. 5. Электрофорез и иммуноблотинг
- 3. 5. 6. Иммуногистохимическое окрашивание ткани почки крысы
- 3. 5. 7. Окрашивание актинового цитоскелета
- 3. 6. Работа с бактериями, временная и постоянная трансфекции
- 3. 6. 1. Приготовление компетентных бактериальных клеток
- 3. 6. 2. Трансформация бактерий, выделение и очистка плазмид
- 3. 6. 3. Временная трансфекция монослойной культуры
- 3. 6. 4. Создание постоянных клеточных линий с пониженной экспрессией целевого белка методом лентивирусной трансфекции
- 3. 7. Микроскопия
- 3. 7. 1. Флуоресцентная микроскопия фиксированных препаратов и обработка изображений
- 3. 7. 2. Электронная микроскопия
- 3. 7. 3. Статистические расчеты
- 4. 1. Исследование роли разборки Б-актина в регуляции эпителиальных натриевых каналов
- 4. 1. 1. Влияние разрушения актинового цитоскелета на активность эпителиальных натриевых каналов, экспрессированных в клетках СНО и НЕК293-Т
- 4. 1. 2. Активация эндогенных эпителиальных натриевых каналов в клетках собирательных трубочек почки в ответ на разрушение актиновых микрофилам ентов
- 4. 1. 3. Изучение изменения доли эпителиальных натриевых каналов в мембране при разборке актинового цитоскелета
- 4. 2. Определение влияния актин-связывающего белка кортактина на активность эпителиальных натриевых каналов
- 4. 2. 1. Исследование влияния кортактина на ток, опосредованный эпителиальными натриевыми каналами, в модели трансфицированных клеток
- 4. 2. 2. Экспрессия и локализация кортактина в почке крысы и иммортализованных клеточных линиях собирательных трубочек почки
- 4. 2. 3. Роль кортактина в реабсорбции натрия в клетках собирательных трубочек почки
- 4. 2. 4. Действие кортактина на вероятность открытого состояния эпителиальных натриевых каналов (Р0)
- 4. 2. 5. Кортактин ассоциирован с субъединицами ЕШС
- 4. 3. Изучение механизма кортактин-зависимой регуляции эпителиальных натриевых каналов
- 4. 3. 1. Роль белкового комплекса Агр2/3 в регуляции эпителиальных натриевых каналов кортактином
- 4. 3. 2. Влияние разборки актиновых микрофиламентов и ингибирования комплекса Агр2/3 на ассоциацию между субъединицами эпителиального натриевого канала и кортактином
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