Kinase suppressor of Ras 2 is involved in regulation of cell proliferation and is up-regulated in human invasive ductal carcinomas of breast
Aim: To study the expression of Kinase Suppressor of Ras 2 (KSR2) in human breast tumors and its effect on proliferation of breast epithelial cells. We reported previously that KSR2 was up-regulated in immortalized human breast epithelial cells. Methods: Proteomics technologies, systems biology tool...
Збережено в:
Дата: | 2010 |
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Автори: | , |
Формат: | Стаття |
Мова: | English |
Опубліковано: |
Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України
2010
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Назва видання: | Experimental Oncology |
Теми: | |
Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/138608 |
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Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
Цитувати: | Kinase suppressor of Ras 2 is involved in regulation of cell proliferation and is up-regulated in human invasive ductal carcinomas of breast / M. Jia, S. Souchelnytskyi // Experimental Oncology. — 2010. — Т. 32, № 3. — С. 209-212. — Бібліогр.: 12 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of UkraineРезюме: | Aim: To study the expression of Kinase Suppressor of Ras 2 (KSR2) in human breast tumors and its effect on proliferation of breast epithelial cells. We reported previously that KSR2 was up-regulated in immortalized human breast epithelial cells. Methods: Proteomics technologies, systems biology tool for a KSR2 network analysis, immunoblotting, siRNA technology, overexpression of KSR2, cell proliferation assays and immunohistochemistry of tissue microarray of human breast tumors and normal breast tissue were used. Results: In conditionally immortalized primary epithelial cells KSR2 expression was shown to be up-regulated. The involvement of KSR2 in regulation of cell proliferation was predicted by a KSR2-centered network analysis. We observed that KSR2 down-regulation with specific siRNA inhibited cell proliferation. By immunohistochemistry of tissue microarray it was demon strated that KSR2 expression was enhanced in human invasive breast carcinomas. Conclusion: Our findings propose KSR2 as a new marker of immortalization, which has an impact on cell proliferation. |
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