Up-regulation of Plasma Hexosylceramide (d18: 1/18: 1) Contributes to Genotype 2 Virus Replication in Chronic Hepatitis C: A 20-Year Cohort Study.

Medicine (Baltimore)

From the Artificial Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing, China (J-YZ, ML, FR, J-YZ, D-DB, YC, Z-PD, S-JZ); State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medica Sciences & Peking Union Medical College, Beijing, China (FQ, J-LZ); and Institute of Infectious Diseases, Department of Infectious Diseases, the First Hospital of Lanzhou University, Lanzhou, China (J-FL).

Published: June 2016

The aim of the present study was to explore the relationship between plasma sphingolipids and hepatitis C virus (HCV) replication in chronic hepatitis C (CHC) patients.A cohort of 120 treatment-naïve CHC patients was included. Liver biopsies and the Scheuer scoring system were used to assess hepatic inflammatory activity. Blood biochemical indicators, HCV-RNA load, and immunological markers were also measured. Forty-four plasma sphingolipids were identified and quantified using high-performance liquid chromatography-tandem mass spectrometry.The hexosylceramide (HexCer) (d18:1/18:1) level was significantly different between patients with a low HCV load (<10 IU/mL) and a high HCV load (≥10 IU/mL), and it was positively correlated with the HCV-RNA load (r = 0.337, P = 0.001) in CHC patients. Additionally, the plasma HexCer (d18:1/18:1) level (odds ratio 1.302, 95% confidence interval 1.129-1.502) was an independent factor for a high HCV-RNA load. For patients with hepatic inflammation grade ≤2 or HCV genotype 2, HexCer (d18:1/18:1) was independently related to a high HCV-RNA load.Plasma HexCer (d18:1/18:1) might be involved in the high viral replication level in chronic HCV infection, especially for CHC patients with genotype 2.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4907656PMC
http://dx.doi.org/10.1097/MD.0000000000003773DOI Listing

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