Induction of murine liver damage by overexpression of CD40 ligand provides an experimental model to study fulminant hepatic failure
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Induction of murine liver damage by overexpression of CD40 ligand provides an experimental model to study fulminant hepatic failure. / Schmitz, Volker; Dombrowski, Frank; Prieto, Jesús; Qian, Cheng; Diehl, Linda; Knolle, Percy; Sauerbruch, Tilman; Caselmann, Wolfgang H; Spengler, Ulrich; Leifeld, Ludger.
In: HEPATOLOGY, Vol. 44, No. 2, 08.2006, p. 430-9.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - Induction of murine liver damage by overexpression of CD40 ligand provides an experimental model to study fulminant hepatic failure
AU - Schmitz, Volker
AU - Dombrowski, Frank
AU - Prieto, Jesús
AU - Qian, Cheng
AU - Diehl, Linda
AU - Knolle, Percy
AU - Sauerbruch, Tilman
AU - Caselmann, Wolfgang H
AU - Spengler, Ulrich
AU - Leifeld, Ludger
PY - 2006/8
Y1 - 2006/8
N2 - Previously, we demonstrated that intrahepatic upregulation of the immunoactivating molecules CD40 and CD40 ligand (CD40L) are early mechanisms for liver cell damage in human and murine fulminant hepatic failure (FHF). In the present study, we investigated the functional effects of intrahepatic overexpression of CD40L by adenoviral-mediated gene transfer (AdCD40L) in mice. AdCD40L injection induced severe liver cell damage, which was associated with increased alanine aminotransferase (ALT) levels peaking at day 5 after vector administration (AdCD40L, 1,707 +/- 279 U/L; AdLacZ, 213 +/- 25 U/L) and with lethality in half of the mice. Except for mild splenomegaly, no organs other than the liver were involved in inflammatory reactions. CD40-CD40L interaction was mandatory for liver damage, because CD40(-/-) mice were completely protected. Furthermore, CD40L-induced FHF depended on competent lymphocytes, because inflammatory reactions were strongly decreased in SCID and Rag1(-/-) mice. In contrast, neither natural killer T (NKT) cells nor Kupffer cells relevantly influenced histology as shown in NKT cell-deficient CD1d(-/-) mice and by gadolinium depletion of Kupffer cells. Furthermore, immunosuppression by dexamethasone and cyclosporin A was not sufficient to block CD40L damage. In conclusion, we present a model of FHF with strong similarities to human FHF with respect to time course and histological changes. This model suggests involvement of the CD40-CD40L system in FHF and might have important implications for future pathophysiological studies of this condition.
AB - Previously, we demonstrated that intrahepatic upregulation of the immunoactivating molecules CD40 and CD40 ligand (CD40L) are early mechanisms for liver cell damage in human and murine fulminant hepatic failure (FHF). In the present study, we investigated the functional effects of intrahepatic overexpression of CD40L by adenoviral-mediated gene transfer (AdCD40L) in mice. AdCD40L injection induced severe liver cell damage, which was associated with increased alanine aminotransferase (ALT) levels peaking at day 5 after vector administration (AdCD40L, 1,707 +/- 279 U/L; AdLacZ, 213 +/- 25 U/L) and with lethality in half of the mice. Except for mild splenomegaly, no organs other than the liver were involved in inflammatory reactions. CD40-CD40L interaction was mandatory for liver damage, because CD40(-/-) mice were completely protected. Furthermore, CD40L-induced FHF depended on competent lymphocytes, because inflammatory reactions were strongly decreased in SCID and Rag1(-/-) mice. In contrast, neither natural killer T (NKT) cells nor Kupffer cells relevantly influenced histology as shown in NKT cell-deficient CD1d(-/-) mice and by gadolinium depletion of Kupffer cells. Furthermore, immunosuppression by dexamethasone and cyclosporin A was not sufficient to block CD40L damage. In conclusion, we present a model of FHF with strong similarities to human FHF with respect to time course and histological changes. This model suggests involvement of the CD40-CD40L system in FHF and might have important implications for future pathophysiological studies of this condition.
KW - Adenoviridae
KW - Animals
KW - Antigens, CD40
KW - CD40 Ligand
KW - Disease Models, Animal
KW - Disease Progression
KW - Follow-Up Studies
KW - Gene Transfer Techniques
KW - Genetic Vectors
KW - Liver Failure, Acute
KW - Male
KW - Mice
KW - Mice, Inbred BALB C
KW - Mice, SCID
U2 - 10.1002/hep.21274
DO - 10.1002/hep.21274
M3 - SCORING: Journal article
C2 - 16871541
VL - 44
SP - 430
EP - 439
JO - HEPATOLOGY
JF - HEPATOLOGY
SN - 0270-9139
IS - 2
ER -