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Chen Y, Liu H, Wang C, Chen W, Li L, Wu J, Wang G, Ling GS, Fu R. The histone demethylase JMJD1C regulates CPS1 expression and promotes the proliferation of paroxysmal nocturnal haemoglobinuria clones through cell metabolic reprogramming. Br J Haematol 2024. [PMID: 38650379 DOI: 10.1111/bjh.19477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 04/03/2024] [Accepted: 04/07/2024] [Indexed: 04/25/2024]
Abstract
Paroxysmal nocturnal haemoglobinuria (PNH) is a disorder resulting from erythrocyte membrane deficiencies caused by PIG-A gene mutations. While current treatments alleviate symptoms, they fail to address the underlying cause of the disease-the pathogenic PNH clones. In this study, we found that the expression of carbamoyl phosphate synthetase 1 (CPS1) was downregulated in PNH clones, and the level of CPS1 was negatively correlated with the proportion of PNH clones. Using PIG-A knockout K562 (K562 KO) cells, we demonstrated that CPS1 knockdown increased cell proliferation and altered cell metabolism, suggesting that CPS1 participates in PNH clonal proliferation through metabolic reprogramming. Furthermore, we observed an increase in the expression levels of the histone demethylase JMJD1C in PNH clones, and JMJD1C expression was negatively correlated with CPS1 expression. Knocking down JMJD1C in K562 KO cells upregulated CPS1 and H3K36me3 expression, decreased cell proliferation and increased cell apoptosis. Chromatin immunoprecipitation analysis further demonstrated that H3K36me3 regulated CPS1 expression. Finally, we demonstrated that histone demethylase inhibitor JIB-04 can suppressed K562 KO cell proliferation and reduced the proportion of PNH clones in PNH mice. In conclusion, aberrant regulation of the JMJD1C-H3K36me3-CPS1 axis contributes to PNH clonal proliferation. Targeting JMJD1C with a specific inhibitor unveils a potential strategy for treating PNH patients.
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Affiliation(s)
- Yingying Chen
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
- LKS Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Hui Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Chaomeng Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Weixin Chen
- LKS Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
| | - Liyan Li
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Junshu Wu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Guanrou Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Guang Sheng Ling
- LKS Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Hong Kong, China
- Department of Medicine, LKS Faculty of Medicine, School of Clinical Medicine, The University of Hong Kong, Hong Kong, China
| | - Rong Fu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
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Chen Y, Meng X, Wang Y, Liu C, Fu R. Several implications for the pathogenesis and treatment of thrombosis in PNH patients according to multiomics analysis. J Transl Med 2024; 22:129. [PMID: 38308287 PMCID: PMC10837891 DOI: 10.1186/s12967-024-04936-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/04/2024] Open
Affiliation(s)
- Yingying Chen
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Tianjin, 300052, People's Republic of China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Xiaorui Meng
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Tianjin, 300052, People's Republic of China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Yinxing Wang
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Tianjin, 300052, People's Republic of China
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China
| | - Chunyan Liu
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Tianjin, 300052, People's Republic of China.
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China.
| | - Rong Fu
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Tianjin, 300052, People's Republic of China.
- Tianjin Key Laboratory of Bone Marrow Failure and Malignant Hemopoietic Clone Control, Tianjin, China.
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