Trans-activation of epidermal growth factor receptor gene by the hepatitis B virus X-gene product.
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Trans-activation of epidermal growth factor receptor gene by the hepatitis B virus X-gene product. / Menzo, S; Clementi, M; Alfani, E; Bagnarelli, P; Iacovacci, S; Manzin, A; Dandri-Petersen, Maura; Natoli, G; Levrero, M; Carloni, G.
In: VIROLOGY, Vol. 196, No. 2, 2, 1993, p. 878-882.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Trans-activation of epidermal growth factor receptor gene by the hepatitis B virus X-gene product.
AU - Menzo, S
AU - Clementi, M
AU - Alfani, E
AU - Bagnarelli, P
AU - Iacovacci, S
AU - Manzin, A
AU - Dandri-Petersen, Maura
AU - Natoli, G
AU - Levrero, M
AU - Carloni, G
PY - 1993
Y1 - 1993
N2 - The expression of the cellular gene coding for the epidermal growth factor (EGF) receptor (EGF-R) was assayed in the presence of hepatitis B virus (HBV) gene expression under different experimental conditions in human hepatoma-derived cells. First, transfection experiments of the well-differentiated HepG2 human hepatoma cell line using different expression vectors of the HBV X-region demonstrated that the X-gene product is capable of inducing EGF-R gene overexpression; in addition, by using a stable in vitro expression system for HBV, it was shown that EGF-R gene expression in these cells is greater than in the uninfected parent cells, and that this results in a three-fold increase in 125I-EGF binding. Finally, a CAT-expression assay was performed, indicating that regulatory regions of the EGF-R-gene are target sequences for X-protein trans-activation.
AB - The expression of the cellular gene coding for the epidermal growth factor (EGF) receptor (EGF-R) was assayed in the presence of hepatitis B virus (HBV) gene expression under different experimental conditions in human hepatoma-derived cells. First, transfection experiments of the well-differentiated HepG2 human hepatoma cell line using different expression vectors of the HBV X-region demonstrated that the X-gene product is capable of inducing EGF-R gene overexpression; in addition, by using a stable in vitro expression system for HBV, it was shown that EGF-R gene expression in these cells is greater than in the uninfected parent cells, and that this results in a three-fold increase in 125I-EGF binding. Finally, a CAT-expression assay was performed, indicating that regulatory regions of the EGF-R-gene are target sequences for X-protein trans-activation.
M3 - SCORING: Zeitschriftenaufsatz
VL - 196
SP - 878
EP - 882
JO - VIROLOGY
JF - VIROLOGY
SN - 0042-6822
IS - 2
M1 - 2
ER -