Inhibition of heme oxygenase 1 expression by small interfering RNA decreases orthotopic tumor growth in livers of mice.
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Inhibition of heme oxygenase 1 expression by small interfering RNA decreases orthotopic tumor growth in livers of mice. / Sass, Gabriele; Leukel, Petra; Schmitz, Volker; Raskopf, Esther; Ocker, Matthias; Neureiter, Daniel; Meissnitzer, Matthias; Tasika, Elena; Tannapfel, Andrea; Tiegs, Gisa.
In: INT J CANCER, Vol. 123, No. 6, 6, 2008, p. 1269-1277.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Inhibition of heme oxygenase 1 expression by small interfering RNA decreases orthotopic tumor growth in livers of mice.
AU - Sass, Gabriele
AU - Leukel, Petra
AU - Schmitz, Volker
AU - Raskopf, Esther
AU - Ocker, Matthias
AU - Neureiter, Daniel
AU - Meissnitzer, Matthias
AU - Tasika, Elena
AU - Tannapfel, Andrea
AU - Tiegs, Gisa
PY - 2008
Y1 - 2008
N2 - Endogenous overexpression of the antiapoptotic protein heme oxygenase 1 (HO-1) has been shown to occur in various cancer diseases and might contribute to cancer progression. We compared the expression levels of HO-1 in human liver to expression levels in hepatocellular carcinoma (HCC), as well as the effect of HO-1 inhibition by small interfering RNA (siRNA) on cellular survival and apoptosis in the mouse hepatoma cell lines Hepa129 and Hepa1-6 and on orthotopic tumor growth in immune-competent C3H/HeN mice. Our results show that HO-1 is frequently overexpressed in human HCC. Downmodulation of HO-1 by siRNA resulted in increased cellular damage and apoptosis, reduced proliferation, reduced growth of orthotopic HCC and reduced angiogenesis. Livers and kidneys of treated animals did not reveal signs of damage by this treatment. In conclusion, a specific knockdown of HO-1 might represent a novel therapeutic approach in HCC therapy.
AB - Endogenous overexpression of the antiapoptotic protein heme oxygenase 1 (HO-1) has been shown to occur in various cancer diseases and might contribute to cancer progression. We compared the expression levels of HO-1 in human liver to expression levels in hepatocellular carcinoma (HCC), as well as the effect of HO-1 inhibition by small interfering RNA (siRNA) on cellular survival and apoptosis in the mouse hepatoma cell lines Hepa129 and Hepa1-6 and on orthotopic tumor growth in immune-competent C3H/HeN mice. Our results show that HO-1 is frequently overexpressed in human HCC. Downmodulation of HO-1 by siRNA resulted in increased cellular damage and apoptosis, reduced proliferation, reduced growth of orthotopic HCC and reduced angiogenesis. Livers and kidneys of treated animals did not reveal signs of damage by this treatment. In conclusion, a specific knockdown of HO-1 might represent a novel therapeutic approach in HCC therapy.
M3 - SCORING: Zeitschriftenaufsatz
VL - 123
SP - 1269
EP - 1277
JO - INT J CANCER
JF - INT J CANCER
SN - 0020-7136
IS - 6
M1 - 6
ER -