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Schnabl, Bernd ; Czech, Barbara ; Valletta, Daniela ; Weiss, Thomas S. ; Kirovski, Georgi ; Hellerbrand, Claus

Increased expression of zinc finger protein 267 in non-alcoholic fatty liver disease.

Schnabl, Bernd, Czech, Barbara, Valletta, Daniela, Weiss, Thomas S., Kirovski, Georgi und Hellerbrand, Claus (2011) Increased expression of zinc finger protein 267 in non-alcoholic fatty liver disease. International journal of clinical and experimental pathology 4 (7), S. 661-6.

Veröffentlichungsdatum dieses Volltextes: 11 Apr 2012 09:03
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.23752


Zusammenfassung

Hepatocellular lipid accumulation is a hallmark of non-alcoholicfatty liver disease (NAFLD), which encompasses a spectrum ranging from simple steatosis to non-alcoholic steatohepatitis (NASH) and ultimately cirrhosis. Zinc finger protein 267 (ZNF267) belongs to the family of Kruppel-like transcription factors, which regulate diverse biological processes that include development, proliferation, ...

Hepatocellular lipid accumulation is a hallmark of non-alcoholicfatty liver disease (NAFLD), which encompasses a spectrum ranging from simple steatosis to non-alcoholic steatohepatitis (NASH) and ultimately cirrhosis. Zinc finger protein 267 (ZNF267) belongs to the family of Kruppel-like transcription factors, which regulate diverse biological processes that include development, proliferation, and differentiation. We have previously demonstrated that ZNF267 expression is up-regulated in liver cirrhosis and is further increased in hepatocellular carcinoma (HCC). Here, we analyzed the expression of ZNF267 in tissue specimens of NAFLD patients and found a significant up-regulation compared to normal liver tissue. Noteworthy, ZNF267 mRNA was already significantly increased in steatotic liver tissue without inflammation. In line with this, incubation of primary human hepatocytes with palmitic acid induced a dose-dependent lipid accumulation and corresponding dose-dependent ZNF267 induction in vitro. Furthermore, hepatocellular lipid accumulation induced formation of reactive oxygen species (ROS), and also chemically induced ROS formation increased ZNF267 mRNA expression. In summary with previous findings, which revealed ZNF267 as pro-fibrogenic and pro-cancerogenic factor in chronic liver disease, the present study further suggests ZNF267 as promising therapeutic target particularly for NAFLD patients. In addition, it further indicates that hepatic steatosis per se has pathophysiological relevance and should not be considered as benign.



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftInternational journal of clinical and experimental pathology
Band:4
Nummer des Zeitschriftenheftes oder des Kapitels:7
Seitenbereich:S. 661-6
Datum22 September 2011
InstitutionenMedizin > Lehrstuhl für Innere Medizin I
Identifikationsnummer
WertTyp
22076166PubMed-ID
Klassifikation
NotationArt
Cells, CulturedMESH
Fatty Liver/metabolismMESH
Hepatocytes/metabolismMESH
HumansMESH
Lipid MetabolismMESH
Liver/metabolismMESH
Palmitic Acid/metabolismMESH
RNA, Messenger/metabolismMESH
Reactive Oxygen Species/metabolismMESH
Repressor Proteins/metabolismMESH
Up-RegulationMESH
Dewey-Dezimal-Klassifikation600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-237523
Dokumenten-ID23752

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