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Real-Time Polymerase Chain Reaction-Based Detection and Quantification of Hepatitis B Virus DNA

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Emerging Serological Biomarkers for Autoimmune Hepatitis.

Kazumichi Abe¹, Jun Wada¹, Hiromasa Ohira¹

¹Department of Gastroenterology, Fukushima Medical University School of Medicine, Fukushima City 960-1295, Japan.

Journal of Clinical Medicine

|July 15, 2026

Summary

New autoantibodies, including anti-DOK2 and anti-MRPS27, show promise for diagnosing autoimmune hepatitis (AIH). Combined testing improves sensitivity for AIH detection, aiding clinical triage but not standalone confirmation.

Keywords:

autoantibody autoimmune hepatitis docking protein 2 human protein microarray mitochondrial ribosomal protein S27

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Anti-Nuclear Antibody Screening Using HEp-2 Cells

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Published on: June 23, 2014

Area of Science:

Immunology
Hepatology
Biomarker Discovery

Background:

Autoimmune hepatitis (AIH) lacks specific diagnostic biomarkers, especially in acute or seronegative cases.
High-throughput autoantibody profiling enables discovery of novel AIH-associated autoantigens.

Purpose of the Study:

To review emerging autoantibodies identified via proteome-wide screening for AIH diagnosis.
To evaluate the diagnostic potential of novel autoantibodies, particularly anti-DOK2 and anti-MRPS27.

Main Methods:

Proteome-wide screening approaches including human protein microarrays and phage immunoprecipitation sequencing.
Systematic discovery and validation of novel AIH-associated autoantibodies.

Main Results:

Emerging autoantibodies, specifically anti-docking protein 2 (DOK2) and anti-mitochondrial ribosomal protein S27 (MRPS27), demonstrate promising diagnostic performance.
Combined assessment of these autoantibodies significantly enhances diagnostic sensitivity for AIH.
While improving screening and triage, the reduced specificity limits their use as a standalone confirmatory test.

Conclusions:

Proteome-wide autoantibody discovery refines diagnostic strategies for AIH.
Integration of serological biomarkers with molecular pathology advances understanding of AIH pathogenesis.
Novel autoantibodies offer potential for improved AIH detection and patient management.