Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment
Background(Auto)immune mediated and cholestatic liver disease (AILD) includes autoimmune hepatitis (AIH), primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). Especially AIH is characterized by the presence of autoantibodies and elevated serum immunoglobulins. In rheumatoid ar...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-07-01
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| Series: | Frontiers in Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmed.2023.1195747/full |
| _version_ | 1827893969460133888 |
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| author | Michelle D. van den Beukel Anna E. C. Stoelinga Adriaan J. van der Meer Stef van der Meulen Lu Zhang Maarten E. Tushuizen Bart van Hoek Leendert A. Trouw |
| author_facet | Michelle D. van den Beukel Anna E. C. Stoelinga Adriaan J. van der Meer Stef van der Meulen Lu Zhang Maarten E. Tushuizen Bart van Hoek Leendert A. Trouw |
| author_sort | Michelle D. van den Beukel |
| collection | DOAJ |
| description | Background(Auto)immune mediated and cholestatic liver disease (AILD) includes autoimmune hepatitis (AIH), primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). Especially AIH is characterized by the presence of autoantibodies and elevated serum immunoglobulins. In rheumatoid arthritis, autoantibodies against post-translational modifications (PTMs) such as citrullination (Cit) and carbamylation (CarP) are used as diagnostic and prognostic markers, respectively. We studied the presence of six anti-PTM antibodies in patients with the three AILDs and non-AILD.MethodsAntibodies against six PTMs (malondialdehyde–acetaldehyde adducts (MAA), advanced glycation end-products (AGE), CarP, acetylation (AL), Cit, and nitration (NT)) were tested in sera of patients with AILD (n = 106), non-AILD (n = 101) and compared with healthy controls (HC) (n = 100). Levels and positivity were correlated with clinical and biochemical features in a well-defined cohort of untreated AIH patients.ResultsAnti-PTM antibodies were more often detectable in sera from AILD patients compared with HCs (anti-MAA: 67.9% vs. 2.0%, anti-AGE: 36.8% vs. 4.0%, anti-CarP: 47.2% vs. 5.0% and anti-AL: 18.9% vs. 5.0%). In untreated AIH, time to complete biochemical response (CBR) was associated with anti-MAA, anti-AGE, anti-CarP and anti-AL antibodies. Significantly more patients with at least three anti-PTM antibodies attained CBR at 12 months of treatment (13 vs. 3 p = 0.01).ConclusionAnti-PTM antibodies are frequently present in AILD. The presence of anti-MAA, anti-AGE and anti-CarP antibodies correlates with the presence of AIH within this cohort. In AIH, harboring at least three anti-PTM antibody responses is positively associated with CBR. Determination of anti-PTM antibodies in liver disease may have diagnostic and prognostic value. |
| first_indexed | 2024-03-12T22:00:35Z |
| format | Article |
| id | doaj.art-f68be82caede41c9b11f1903711a3db4 |
| institution | Directory Open Access Journal |
| issn | 2296-858X |
| language | English |
| last_indexed | 2024-03-12T22:00:35Z |
| publishDate | 2023-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Medicine |
| spelling | doaj.art-f68be82caede41c9b11f1903711a3db42023-07-25T09:19:12ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2023-07-011010.3389/fmed.2023.11957471195747Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatmentMichelle D. van den Beukel0Anna E. C. Stoelinga1Adriaan J. van der Meer2Stef van der Meulen3Lu Zhang4Maarten E. Tushuizen5Bart van Hoek6Leendert A. Trouw7Department of Immunology, Leiden University Medical Center, Leiden, NetherlandsDepartment of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, NetherlandsDepartment of Gastroenterology and Hepatology, Erasmus Medical Center, Rotterdam, NetherlandsDepartment of Immunology, Leiden University Medical Center, Leiden, NetherlandsDepartment of Immunology, Leiden University Medical Center, Leiden, NetherlandsDepartment of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, NetherlandsDepartment of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, NetherlandsDepartment of Immunology, Leiden University Medical Center, Leiden, NetherlandsBackground(Auto)immune mediated and cholestatic liver disease (AILD) includes autoimmune hepatitis (AIH), primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC). Especially AIH is characterized by the presence of autoantibodies and elevated serum immunoglobulins. In rheumatoid arthritis, autoantibodies against post-translational modifications (PTMs) such as citrullination (Cit) and carbamylation (CarP) are used as diagnostic and prognostic markers, respectively. We studied the presence of six anti-PTM antibodies in patients with the three AILDs and non-AILD.MethodsAntibodies against six PTMs (malondialdehyde–acetaldehyde adducts (MAA), advanced glycation end-products (AGE), CarP, acetylation (AL), Cit, and nitration (NT)) were tested in sera of patients with AILD (n = 106), non-AILD (n = 101) and compared with healthy controls (HC) (n = 100). Levels and positivity were correlated with clinical and biochemical features in a well-defined cohort of untreated AIH patients.ResultsAnti-PTM antibodies were more often detectable in sera from AILD patients compared with HCs (anti-MAA: 67.9% vs. 2.0%, anti-AGE: 36.8% vs. 4.0%, anti-CarP: 47.2% vs. 5.0% and anti-AL: 18.9% vs. 5.0%). In untreated AIH, time to complete biochemical response (CBR) was associated with anti-MAA, anti-AGE, anti-CarP and anti-AL antibodies. Significantly more patients with at least three anti-PTM antibodies attained CBR at 12 months of treatment (13 vs. 3 p = 0.01).ConclusionAnti-PTM antibodies are frequently present in AILD. The presence of anti-MAA, anti-AGE and anti-CarP antibodies correlates with the presence of AIH within this cohort. In AIH, harboring at least three anti-PTM antibody responses is positively associated with CBR. Determination of anti-PTM antibodies in liver disease may have diagnostic and prognostic value.https://www.frontiersin.org/articles/10.3389/fmed.2023.1195747/fullautoantibodiesautoimmune hepatitisautoimmune liver diseasepost-translational modificationsepidemiology |
| spellingShingle | Michelle D. van den Beukel Anna E. C. Stoelinga Adriaan J. van der Meer Stef van der Meulen Lu Zhang Maarten E. Tushuizen Bart van Hoek Leendert A. Trouw Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment Frontiers in Medicine autoantibodies autoimmune hepatitis autoimmune liver disease post-translational modifications epidemiology |
| title | Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment |
| title_full | Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment |
| title_fullStr | Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment |
| title_full_unstemmed | Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment |
| title_short | Antibodies against multiple post-translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment |
| title_sort | antibodies against multiple post translationally modified proteins aid in diagnosis of autoimmune hepatitis and associate with complete biochemical response to treatment |
| topic | autoantibodies autoimmune hepatitis autoimmune liver disease post-translational modifications epidemiology |
| url | https://www.frontiersin.org/articles/10.3389/fmed.2023.1195747/full |
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