Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells

The LGI1 gene was suggested to function as tumor suppressor for its ability to reduce malignant features of glioblastoma cells. In support to this proposal were the findings that overexpression of LGI1 in neuroblastoma cells inhibited proliferation and induced apoptosis. In this study we performed s...

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Main Authors: Nadia Gabellini, Valentina Masola
Format: Article
Language:English
Published: Wiley 2009-01-01
Series:International Journal of Cell Biology
Online Access:http://dx.doi.org/10.1155/2009/417197
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author Nadia Gabellini
Valentina Masola
author_facet Nadia Gabellini
Valentina Masola
author_sort Nadia Gabellini
collection DOAJ
description The LGI1 gene was suggested to function as tumor suppressor for its ability to reduce malignant features of glioblastoma cells. In support to this proposal were the findings that overexpression of LGI1 in neuroblastoma cells inhibited proliferation and induced apoptosis. In this study we performed stable LGI1 expression in HeLa cells to examine whether the noxious effect of LGI1 might be extended to cancer cells of diverse origin. HeLa cell clones stably expressing LGI1 exhibited a significant impairment of proliferation and a consistent increase of cell death when compared with control cells lacking expression of LGI1. Expression of LGI1 increased the activity of apoptosis effectors caspase-3/7; furthermore it downregulated the antiapoptotic BCL2 gene and upregulated the proapoptotic BAX gene expression, suggesting that the cause of HeLa cells death might be an increased susceptibility to apoptosis induced by LGI1. The results suggested that LGI1 is capable to restrain growth and survival of adenocarcinoma cells such as HeLa.
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spelling doaj-art-8998b1d276d8406d8a9f19e3b2bbdf132025-02-03T05:44:55ZengWileyInternational Journal of Cell Biology1687-88761687-88842009-01-01200910.1155/2009/417197417197Expression of LGI1 Impairs Proliferation and Survival of HeLa CellsNadia Gabellini0Valentina Masola1Department of Biological Chemistry, University of Padova, 35121 Padova, ItalyDepartment of Biological Chemistry, University of Padova, 35121 Padova, ItalyThe LGI1 gene was suggested to function as tumor suppressor for its ability to reduce malignant features of glioblastoma cells. In support to this proposal were the findings that overexpression of LGI1 in neuroblastoma cells inhibited proliferation and induced apoptosis. In this study we performed stable LGI1 expression in HeLa cells to examine whether the noxious effect of LGI1 might be extended to cancer cells of diverse origin. HeLa cell clones stably expressing LGI1 exhibited a significant impairment of proliferation and a consistent increase of cell death when compared with control cells lacking expression of LGI1. Expression of LGI1 increased the activity of apoptosis effectors caspase-3/7; furthermore it downregulated the antiapoptotic BCL2 gene and upregulated the proapoptotic BAX gene expression, suggesting that the cause of HeLa cells death might be an increased susceptibility to apoptosis induced by LGI1. The results suggested that LGI1 is capable to restrain growth and survival of adenocarcinoma cells such as HeLa.http://dx.doi.org/10.1155/2009/417197
spellingShingle Nadia Gabellini
Valentina Masola
Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells
International Journal of Cell Biology
title Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells
title_full Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells
title_fullStr Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells
title_full_unstemmed Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells
title_short Expression of LGI1 Impairs Proliferation and Survival of HeLa Cells
title_sort expression of lgi1 impairs proliferation and survival of hela cells
url http://dx.doi.org/10.1155/2009/417197
work_keys_str_mv AT nadiagabellini expressionoflgi1impairsproliferationandsurvivalofhelacells
AT valentinamasola expressionoflgi1impairsproliferationandsurvivalofhelacells