Analysis of serum Haptoglobin using glycoproteomics and lectin immunoassay in liver diseases in Hepatitis B virus infection.

Authors:
S Bhatia
S Bhatia
Indian Veterinary Research Institute
India
A Shukla
A Shukla
King George's Medical University
India

Clin Chim Acta 2019 Apr 20;495:309-317. Epub 2019 Apr 20.

Transfusion Transmitted Diseases Department, National Institute of Immunohaematology (ICMR), 13th Floor, New Multi-storeyed Bldg, KEM Hospital Campus, Parel, Mumbai 400 012, Maharashtra, India. Electronic address:

Background: Hepatocellular carcinoma (HCC) due to Hepatitis B viral (HBV) infection is a major cause in Asia-Pacific countries. Its early detection is of paramount importance using a marker having both sensitivity and specificity. The present study promises diagnostic and prognostic markers by the identification of site-specific glycoforms on Haptoglobin (Hp) using LC-MS/MS and lectin ELISA in liver diseased conditions in HBV infection.

Methods: Three groups of patients: chronic, liver cirrhosis and HCC with HBV infection along with controls were enrolled. Hp was purified using affinity column chromatography and, peptide sequence, N-glycosylation site, glycan composition and glycoforms were identified using mass spectrometry. Quantitative lectin ELISA was used to measure levels of fucosylation on Hp in liver diseases due to HBV.

Results: Hp levels were significantly lower in HCC when compared with Non-HCC cases (p < .05). Fucosylated glycoforms were significantly increased at site Asn184, Asn207 and Asn211 in liver diseased stages versus controls. A significant association was observed between the Fuc-Hp/Hp Elisa index and, advanced liver disease stages and controls using lectin Elisa (p < .001).

Conclusion: Quantitation of fucosylation levels on Hp protein using Lectin ELISA may be useful glycobiomarker either alone or in combination (AFP + DCP + FucHp; AUC = 0.94) in HBV HCC diagnosis in clinical practice.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cca.2019.04.072DOI Listing
April 2019
1 Read

Publication Analysis

Top Keywords

hbv infection
8
lectin elisa
8
liver diseases
8
chronic liver
4
liver cirrhosis
4
patients chronic
4
groups patients
4
three groups
4
cirrhosis hcc
4
promises diagnostic
4
enrolled purified
4
controls enrolled
4
infection controls
4
hcc hbv
4
infectionmethods three
4
hbv infectionmethods
4
glycoforms haptoglobin
4
haptoglobin lc-ms/ms
4
site-specific glycoforms
4
identification site-specific
4

Similar Publications