С.С. Шушанов1, Т.А. Кравцова1, Ю.Б. Черных2
1 ФГБУ «Российский онкологический научный центр им. Н.Н. Блохина» РАМН, Москва, Российская Федерация
2 ГБУЗ МО «Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского», Москва, Российская Федерация
РЕФЕРАТ
В настоящей работе проведено исследование выживаемости линий клеток множественной миеломы (ММ) человека RPMI1640, RPMI8226 и IM9 в зависимости от степени их дифференцировки в среде без сыворотки и/или при воздействии экзогенного инсулиноподобного фактора роста 1-го типа (IGF-1). Установлено, что наиболее чувствительны к сывороточным факторам роста клетки IM9 с иммунофенотипом CD138+, CD38–, CD45+, CD56–, CD19+ и наименее чувствительны клетки RPMI1640 и RPMI8226, имеющие иммунофенотип CD138+, CD38+, CD45–, CD56+/–, CD19–. Исследование генов показало, что в клетках IM9 уровень экспрессии мРНК IGF-1R и IR-A значительно ниже, чем в клетках RPMI1640 и RPMI8226. Кроме того, установлено, что экзогенный IGF-1 может по-разному влиять на выживаемость и рост клеток ММ. Изолированное воздействие IGF-1 не влияет на жизнеспособность миеломных клеток, а в сочетании с факторами роста — усиливает.
Ключевые слова: множественная миелома (ММ), инсулиноподобный фактор роста 1-го типа (IGF-1), выживаемость клеток, экспрессия мРНК.
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