Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo

Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo

To evaluate the anti-tumor activity of murine beta-defensin-2 (mBD-2) expression in vitro and in vivo. Materials and Methods: Based on pcDNA3 vector, constructs containing mBD-2 cDNA coding mature defensin molecule (pcDNA3-mBD2), and Igk-mBD-2 insertion, coding secretory sequence plus mature defensi...

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Datum:2008
Hauptverfasser: Zhuravel, E., Shestakova, T., Glushko, N., Soldatkina, M., Pogrebnoy, P.
Format: Artikel
Sprache:English
Veröffentlicht: Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України 2008
Schriftenreihe:Experimental Oncology
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Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/139913
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Zitieren:Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo / E. Zhuravel, T. Shestakova, N. Glushko, M. Soldatkina, P. Pogrebnoy // Experimental Oncology. — 2008. — Т. 30, № 3. — С. 206–211. — Бібліогр.: 21 назв. — англ.

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spelling irk-123456789-1399132018-06-22T03:03:42Z Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo Zhuravel, E. Shestakova, T. Glushko, N. Soldatkina, M. Pogrebnoy, P. Uncategorized To evaluate the anti-tumor activity of murine beta-defensin-2 (mBD-2) expression in vitro and in vivo. Materials and Methods: Based on pcDNA3 vector, constructs containing mBD-2 cDNA coding mature defensin molecule (pcDNA3-mBD2), and Igk-mBD-2 insertion, coding secretory sequence plus mature defensin molecule (pcDNA3-Igk-mBD-2) were generated. Lewis lung carcinoma (3LL) cells were transfected in vitro with these plasmids and with blank pcDNA3 vector, and the proliferative rate and clonogenic ability of obtained cell lines cultivated in vitro were analyzed using 3H-incorporation technique and colony formation in semi-soft medium, respectively. Expression of mBD-2 mRNA was studied by semiquantative RT-PCR analysis. Also, transfected cells were transplanted to C57B mice, and the patterns of tumor growth in vivo were analyzed by routine techniques. Results: We have found out that in the 3LL cells transfected with pcDNA3-mBD-2 and pcDNA3-Igk-mBD-2, the expression of mBD-2 mRNA is significantly down regulated compared to wild-type cells and 3LL cells transfected with blank vector. The cells with suppressed mBD-2 expression differed from parental cells and cells transfected with blank vector by higher proliferation rate (p < 0.001) and higher clonogenic ability. The 3LL-mBD-2 and 3LL-Igk-mBD-2 cells that are transplanted to C57B mice gave rise to more aggressive tumors that possessed significantly higher growth rate (p < 0.01) than those that arise from wild-type 3LL cells. Conclusion: The obtained results are evidencing on a possible tumor-suppressing role of mBD-2 expression. Цель: настоящая работа посвящена анализу противоопухолевых свойств бета-дефенсина-2 мыши (mBD-2) in vitro and in vivo. Материалы и методы: на основе pcDNA3.1+ вектора были созданы 2 плазмидных конструкта, кодирующих зрелую форму mBD-2, содержащие или несодержащие сигнальную последовательность Igk (pcDNA3mBD-2 и pcDNA3Igk-mBD-2 соответственно). Путем трансфекции клеток 3LL полученными векторами, а также контрольным вектором pcDNA3.1+ были получены клеточные линии (3LL-mBD-2, 3LL-Igk-mBD-2 и 3LL-pcDNA3), для которых были проведены исследования их пролиферативной активности, определенной по уровню включения 3 Н-тимидина в ДНК, и способности к колониеобразованию в среде, содержащей метилцеллюлозу. Экспрессию гена mBD-2 исследовали с помощью полуколичественного ОТ-ПЦР-анализа. Трансфецированные клетки были имплантированы мышам линии C57BL, после чего была проанализирована динамика роста опухоли. Результаты: установлено, что в трансфектных клеточных линиях 3LL-mBD-2 и 3LL-Igk-mBD-2 уровень экспрессии mBD-2 снижен по сравнению с контрольными. Эти клетки характеризовались достоверным повышением уровня пролиферации (р < 0,001) и способности к колониеобразованию. Клетки сублиний 3LLmBD-2 и 3LL-Igk-mBD-2, трансплантированные мышам линии C57BL, вызывали развитие более агрессивных опухолей, обладающих значительно более высокой скоростью роста (p < 0,01), чем таковые, вызванные перевивкой клеток 3LL. Выводы: полученные результаты свидетельствуют о возможной роли mBD-2 как опухолевого супрессора. 2008 Article Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo / E. Zhuravel, T. Shestakova, N. Glushko, M. Soldatkina, P. Pogrebnoy // Experimental Oncology. — 2008. — Т. 30, № 3. — С. 206–211. — Бібліогр.: 21 назв. — англ. 1812-9269 http://dspace.nbuv.gov.ua/handle/123456789/139913 en Experimental Oncology Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Uncategorized
Uncategorized
spellingShingle Uncategorized
Uncategorized
Zhuravel, E.
Shestakova, T.
Glushko, N.
Soldatkina, M.
Pogrebnoy, P.
Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
Experimental Oncology
description To evaluate the anti-tumor activity of murine beta-defensin-2 (mBD-2) expression in vitro and in vivo. Materials and Methods: Based on pcDNA3 vector, constructs containing mBD-2 cDNA coding mature defensin molecule (pcDNA3-mBD2), and Igk-mBD-2 insertion, coding secretory sequence plus mature defensin molecule (pcDNA3-Igk-mBD-2) were generated. Lewis lung carcinoma (3LL) cells were transfected in vitro with these plasmids and with blank pcDNA3 vector, and the proliferative rate and clonogenic ability of obtained cell lines cultivated in vitro were analyzed using 3H-incorporation technique and colony formation in semi-soft medium, respectively. Expression of mBD-2 mRNA was studied by semiquantative RT-PCR analysis. Also, transfected cells were transplanted to C57B mice, and the patterns of tumor growth in vivo were analyzed by routine techniques. Results: We have found out that in the 3LL cells transfected with pcDNA3-mBD-2 and pcDNA3-Igk-mBD-2, the expression of mBD-2 mRNA is significantly down regulated compared to wild-type cells and 3LL cells transfected with blank vector. The cells with suppressed mBD-2 expression differed from parental cells and cells transfected with blank vector by higher proliferation rate (p < 0.001) and higher clonogenic ability. The 3LL-mBD-2 and 3LL-Igk-mBD-2 cells that are transplanted to C57B mice gave rise to more aggressive tumors that possessed significantly higher growth rate (p < 0.01) than those that arise from wild-type 3LL cells. Conclusion: The obtained results are evidencing on a possible tumor-suppressing role of mBD-2 expression.
format Article
author Zhuravel, E.
Shestakova, T.
Glushko, N.
Soldatkina, M.
Pogrebnoy, P.
author_facet Zhuravel, E.
Shestakova, T.
Glushko, N.
Soldatkina, M.
Pogrebnoy, P.
author_sort Zhuravel, E.
title Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
title_short Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
title_full Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
title_fullStr Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
title_full_unstemmed Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
title_sort down-regulation of murine beta-defensin-2 in lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo
publisher Інститут експериментальної патології, онкології і радіобіології ім. Р.Є. Кавецького НАН України
publishDate 2008
topic_facet Uncategorized
url http://dspace.nbuv.gov.ua/handle/123456789/139913
citation_txt Down-regulation of murine beta-defensin-2 in Lewis lung carcinoma cells results in accelerated growth of tumor cells in vitro and in vivo / E. Zhuravel, T. Shestakova, N. Glushko, M. Soldatkina, P. Pogrebnoy // Experimental Oncology. — 2008. — Т. 30, № 3. — С. 206–211. — Бібліогр.: 21 назв. — англ.
series Experimental Oncology
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