Home CONTACT Acta Virologica 2015 Acta Virologica Vol.59, No.4, p.418-422, 2015

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Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

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Acta Virologica Vol.59, No.4, p.418-422, 2015

Title: Cells transformed by murine herpesvirus 68 (MHV-68) release compounds with transforming and transformed phenotype suppressing activity resembling growth factors
Author: M. ŠUPOLÍKOVÁ , A. VOJS STAŇOVÁ , M. KÚDELOVÁ , J. MARÁK , V. ZELNÍK , F. GOLAIS

Abstract: In this study, we investigated the medium of three cell lines transformed with murine herpesvirus 68 (MHV-68) in vitro and in vivo, 68/HDF, 68/NIH3T3, and S11E, for the presence of compounds resembling growth factors of some herpesviruses which have displayed transforming and transformed phenotype suppressing activity in normal and tumor cells. When any of spent medium was added to cell culture we observed the onset of transformed phenotype in baby hamster kidney cells (BHK-21) cells and transformed phenotype suppressing activity in tumor human epithelial cells (HeLa). In media tested, we have identified the presence of putative growth factor related to MHV-68 (MHGF-68). Its bivalent properties have been blocked entirely by antisera against MHV-68 and two monoclonal antibodies against glycoprotein B (gB) of MHV-68 suggesting viral origin of MHGF-68. The results of initial efforts to separate MHGF-68 on FPLC Sephadex G15 column in the absence of salts revealed the loss of its transforming activity but transformed phenotype suppressing activity retained. On the other hand, the use of methanol-water mobile phase on RP-HPLC C18 column allowed separation of MHGF-68 to two compounds. Both separated fractions, had only the transforming activity to normal cells. Further experiments exploring the nature and the structure of hitherto unknown MHGF-68 are now in the progress to characterize its molecular and biological properties.

Keywords: murine herpesvirus; MHV-68 transformed cell line; putative growth factor MHGF-68; separation techniques
Published online: 06-Dec-2015
Year: 2015, Volume: 59, Issue: 4 Page From: 418, Page To: 422
doi:10.4149/av_2015_04_418


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