Abstract:
:Apoptosis of epithelial hepatocytes plays a pivotal role in acute as well as in chronic liver diseases. The cleavage of cytokeratin-18 (CK-18) by caspases is an early event in the apoptotic process. We therefore sought to investigate serum levels of CK-18 and 20S proteasome in patients with liver cirrhosis, primary graft dysfunction (PDF), and acute liver failure (ALF), and in healthy volunteers. Enzyme-linked immunosorbent assay (ELISA) was utilized to measure the concentration of M30, a fragment of CK-18 cleaved at Asp396 (M30 neoantigen), and the concentration of 20S proteasome. Serum levels of the CK-18 neoepitope M30 were significantly increased in ALF, primary graft dysfunction, and liver cirrhosis vs. healthy controls (1,993.6+/-124.7 U/L, 2,238.1+/-235.9 U/L, and 673.6+/-86.5 U/L vs. 66.8+/-29.1 U/L, respectively, P<0.001). Similar results were detected with the evaluation of 20S proteasome (124,014.5+/-13,235.6 ng/mL, 76,993.2+/-15,720.1 ng/mL, and 2,395.9+/-1,098.2 ng/mL vs. 1,074.5+/-259.4 ng/mL, respectively; P<0.001). Detection of CK-18 neoepitope M30 and 20S proteasome may represent a novel marker of tracing apoptotic epithelium, respectively mirroring degenerative liver processes in affected patient population.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Hetz H,Hoetzenecker K,Hacker S,Faybik P,Pollreisz A,Moser B,Roth G,Hoetzenecker W,Lichtenauer M,Klinger M,Krenn CG,Ankersmit HJdoi
10.1002/jcla.20180subject
Has Abstractpub_date
2007-01-01 00:00:00pages
277-81issue
5eissn
0887-8013issn
1098-2825journal_volume
21pub_type
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