Bone marrow inhibition induced by azathioprine in a patient without mutation in the thiopurine S-methyltransferase pathogenic site: A case report

paythelady.612 shared this article with you from Inoreader Bone marrow inhibition induced by azathioprine in a patient without mutation in the thiopurine S-methyltransferase pathogenic site: A case report Μέσω pubmed: "world j clin cases"... World J Clin Cases. 2021 Jun 16;9(17):4230-4237. doi: 10.12998/wjcc.v9.i17.4230. ABSTRACT BACKGROUND: Azathioprine (AZA) and its close analog 6-mercaptopurine are thiopurines widely used in the treatment of patients with cancer, organ transplantation, and autoimmune or inflammatory diseases, including systemic lupus erythematosus. Bone marrow inhibition is a common side effect of AZA, and severe bone marrow inhibition is related to decreased thiopurine S-methyltransferase (TPMT) activity. CASE SUMMARY: We herein report a patient with proliferative lupus nephritis who was using AZA for maintenance therapy, had no common TPMT pathogenic site mutations, and exhibited severe bone marrow inhibition on the 15th day after oral administration. CONCLUSION: This report alerts physicians to the fact that even though the TPMT gene has no common pathogenic site mutation, severe myelosuppression may also o ccur. PMID:34141785 | PMC:PMC8173432 | DOI:10.12998/wjcc.v9.i17.4230 View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.