kaposi???s sarcoma-associated herpesvirus infection modulates the proliferation of glioma stem-like cells
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Abstract
Glioblastoma multiforme is the most lethal malignant brain tumor. Despite many intensive studies, the prognosis of glioblastoma multiforme is currently very poor, with a median overall survival duration of 14 months and 2-year survival rates of less than 10%. Although viral infections have been emphasized as potential cofactors, their influences on pathways that support glioblastoma progression are not known. Some previous studies indicated that human Kaposi's sarcoma-associated herpesvirus (KSHV) was detected in healthy brains, and its microRNA was also detected in glioblastoma patients' plasma. However, a direct link between KSHV infection and glioblastoma is currently not known. In this study, we infected glioblastoma cells and glioma stem-like cells (GSCs) with KSHV to establish an in vitro cell model for KSHV-infected glioblastoma cells and glioma stem-like cells in order to identify virologic outcomes that overlap with markers of aggressive disease. Latently KSHV-infected glioblastoma cells and GSCs were successfully established. Additionally, using these cell models, we found that KSHV infection modulates the proliferation of glioma stem-like cells.
Glioblastoma multiforme is the most lethal malignant brain tumor. Despite many intensive studies, the prognosis of glioblastoma multiforme is currently very poor, with a median overall survival duration of 14 months and 2-year survival rates of less than 10%. Although viral infections have been emphasized as potential cofactors, their influences on pathways that support glioblastoma progression are not known. Some previous studies indicated that human Kaposi's sarcoma-associated herpesvirus (KSHV) was detected in healthy brains, and its microRNA was also detected in glioblastoma patients' plasma. However, a direct link between KSHV infection and glioblastoma is currently not known. In this study, we infected glioblastoma cells and glioma stem-like cells (GSCs) with KSHV to establish an in vitro cell model for KSHV-infected glioblastoma cells and glioma stem-like cells in order to identify virologic outcomes that overlap with markers of aggressive disease. Latently KSHV-infected glioblastoma cells and GSCs were successfully established. Additionally, using these cell models, we found that KSHV infection modulates the proliferation of glioma stem-like cells.
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Explanation:
A sarcoma is a malignant tumor, a type of cancer that arises from transformed cells of mesenchymal (connective tissue) origin. Connective tissue is a broad term that includes bone, cartilage, fat, vascular, or hematopoietic tissues, and sarcomas can arise in any of these types of tissues.
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