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Cavalli M, Eriksson N, Sundbaum JK, Wallenberg M, Kohnke H, Baecklund E, Hallberg P, Wadelius M. Genome-wide association study of liver enzyme elevation in an extended cohort of rheumatoid arthritis patients starting low-dose methotrexate. Pharmacogenomics 2022; 23:813-820. [PMID: 36070248 DOI: 10.2217/pgs-2022-0074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: A follow-up genome-wide association study (GWAS) in an extended cohort of rheumatoid arthritis (RA) patients starting low-dose methotrexate (MTX) treatment was performed to identify further genetic variants associated with alanine aminotransferase (ALT) elevation. Patients & methods: A GWAS was performed on 346 RA patients. Two outcomes within the first 6 months of MTX treatment were assessed: ALT >1.5-times the upper level of normal (ULN) and maximum level of ALT. Results: SPATA9 (rs72783407) was significantly associated with maximum level of ALT (p = 2.58 × 10-8) and PLCG2 (rs60427389) was tentatively associated with ALT >1.5 × ULN. Conclusion: Associations with SNPs in genes related to male fertility (SPATA9) and inflammatory processes (PLCG2) were identified.
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Affiliation(s)
- Marco Cavalli
- Department of Medical Sciences, Clinical Pharmacogenomics & Science for Life Laboratory, Uppsala University, SE-751 85, Uppsala, Sweden.,Department of Immunology, Genetics & Pathology, & Science for Life Laboratory, Uppsala University, SE-751 22, Uppsala, Sweden
| | - Niclas Eriksson
- Department of Medical Sciences, Clinical Pharmacogenomics & Science for Life Laboratory, Uppsala University, SE-751 85, Uppsala, Sweden.,Uppsala Clinical Research Center, SE-751 85, Uppsala, Sweden
| | - Johanna Karlsson Sundbaum
- Department of Medical Sciences, Rheumatology, Uppsala University, SE-751 85, Uppsala, Sweden.,Department of Health Sciences, Luleå University of Technology, SE-971 87, Luleå, Sweden
| | - Matilda Wallenberg
- Department of Medical Sciences, Clinical Pharmacogenomics & Science for Life Laboratory, Uppsala University, SE-751 85, Uppsala, Sweden.,Svensk Dos AB, Box 2, SE-751 03, Uppsala, Sweden
| | - Hugo Kohnke
- Department of Medical Sciences, Clinical Pharmacogenomics & Science for Life Laboratory, Uppsala University, SE-751 85, Uppsala, Sweden
| | - Eva Baecklund
- Department of Medical Sciences, Rheumatology, Uppsala University, SE-751 85, Uppsala, Sweden
| | - Pär Hallberg
- Department of Medical Sciences, Clinical Pharmacogenomics & Science for Life Laboratory, Uppsala University, SE-751 85, Uppsala, Sweden
| | - Mia Wadelius
- Department of Medical Sciences, Clinical Pharmacogenomics & Science for Life Laboratory, Uppsala University, SE-751 85, Uppsala, Sweden
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