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Изучение ÑÑ‚Ð²Ð¾Ð»Ð¾Ð²Ñ‹Ñ ÐºÐ»ÐµÑ‚Ð¾Ðº ÑÐ½Ð´Ð¾Ð¼ÐµÑ‚Ñ€Ð¸Ñ (СКÐ) ÑвлÑетÑÑ Ð¿Ð¾Ñ‚ÐµÐ½Ñ†Ð¸Ð°Ð»ÑŒÐ½Ð¾ важной задачей Ð´Ð»Ñ Ð²Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð¸Ñ Ð² практичеÑкое применение. Целью работы ÑвлÑлоÑÑŒ идентифицирование оÑÐ½Ð¾Ð²Ð½Ñ‹Ñ Ñ‚Ð¸Ð¿Ð¾Ð² Ð¸Ð¾Ð½Ð½Ñ‹Ñ ÐºÐ°Ð½Ð°Ð»Ð¾Ð², ÑкÑпреÑÑÐ¸Ñ€ÑƒÑŽÑ‰Ð¸Ñ ÑÑ Ð² СКÐ. С помощью метода патч-кламп были идентифицированы кальций-активируемые калиевые каналы ÑемейÑтв SK и BK Ñ Ñ€Ð°Ð·Ð»Ð¸Ñ‡Ð½Ð¾Ð¹ чувÑтвительноÑтью к уровню внутриклеточного кальциÑ. Ðа уровне Ð¾Ð´Ð¸Ð½Ð¾Ñ‡Ð½Ñ‹Ñ Ñ‚Ð¾ÐºÐ¾Ð² показан кальций и потенциал-завиÑимоÑть каналов BK. Методом ОТ-ПЦРобнаружена ÑкÑпреÑÑÐ¸Ñ Ð³ÐµÐ½Ð° канало-формирующей Ñубъединицы ВК канала, а также подтверждено приÑутÑтвие ВК каналов в клеточной мембране Ñ Ð¿Ð¾Ð¼Ð¾Ñ‰ÑŒÑŽ иммунофлюореÑцентного окрашиваниÑ.
Human mesenchymal endometrial stem cells (hMESCs) have several advantages over other adult stem cells isolated from different sources. For the potential use of hMESC in stem cell-based therapy, it is very important to characterize hMESCs on different levels. To date, the ionic mechanisms underlying physiological processes in hMESCs are unknown. Using the patch-clamp technique, several types of native potassium channels in hMESCs were identified on single current level. Moreover, the presence of two distinct types (SK and BK) of calcium-activated potassium channels was demonstrated. BK channels were activated in response to the increase of membrane potential (depolarization) and by the change in intracellular calcium concentration. It was shown that SK channels have higher calcium sensitivity comparing to BK. BK channel expression was confirmed by immunofluorescent staining and RT-PCR.
ÑÑволовÑе клеÑки, ÑегенеÑаÑÐ¸Ð²Ð½Ð°Ñ Ð¼ÐµÐ´Ð¸Ñина, калиевÑе каналÑ, stem cells, regenerative medicine, ÐлеÑка (биол), potassium channel
ÑÑволовÑе клеÑки, ÑегенеÑаÑÐ¸Ð²Ð½Ð°Ñ Ð¼ÐµÐ´Ð¸Ñина, калиевÑе каналÑ, stem cells, regenerative medicine, ÐлеÑка (биол), potassium channel
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