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Liu X, Xue H, Wirdefeldt K, Song H, Smedby K, Fang F, Liu Q. Clonal hematopoiesis of indeterminate potential and risk of neurodegenerative diseases. J Intern Med 2024. [PMID: 39073225 DOI: 10.1111/joim.20001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
BACKGROUND Little is known regarding the association between clonal hematopoiesis of indeterminate potential (CHIP) and risk of neurodegenerative diseases. OBJECTIVE To estimate the risk of neurodegenerative diseases among individuals with CHIP. METHODS We conducted a community-based cohort study based on UK Biobank and used Cox regression to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the risk of any neurodegenerative disease, subtypes of neurodegenerative diseases (including primary neurodegenerative diseases, vascular neurodegenerative diseases, and other neurodegenerative diseases), and specific diagnoses of neurodegenerative diseases (i.e., amyotrophic lateral sclerosis [ALS], Alzheimer's disease [AD], and Parkinson's disease [PD]) associated with CHIP. RESULTS We identified 14,440 individuals with CHIP and 450,907 individuals without CHIP. Individuals with CHIP had an increased risk of any neurodegenerative disease (HR 1.10, 95% CI: 1.01-1.19). We also observed a statistically significantly increased risk for vascular neurodegenerative diseases (HR 1.31, 95% CI 1.05-1.63) and ALS (HR 1.50, 95% CI 1.05-2.15). An increased risk was also noted for other neurodegenerative diseases (HR 1.13, 95% CI 0.97-1.32), although not statistically significant. Null association was noted for primary neurodegenerative diseases (HR 1.06, 95% CI 0.96-1.17), AD (HR 1.04, 95% CI 0.88-1.23), and PD (HR 1.02, 95% CI 0.86-1.21). The risk increase in any neurodegenerative disease was mainly observed for DNMT3A-mutant CHIP, ASXL1-mutant CHIP, or SRSF2-mutant CHIP. CONCLUSION Individuals with CHIP were at an increased risk of neurodegenerative diseases, primarily vascular neurodegenerative diseases and ALS, but potentially also other neurodegenerative diseases. These findings suggest potential shared mechanisms between CHIP and neurodegenerative diseases.
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Affiliation(s)
- Xinyuan Liu
- Center for Intelligent Medicine Research, Greater Bay Area Institute of Precision Medicine (Guangzhou), State Key Laboratory of Genetic Engineering, Center for Evolutionary Biology, School of Life Sciences, Fudan University, Guangzhou, China
| | - Huiwen Xue
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Karin Wirdefeldt
- Department of Medical Epidemiology and Biostatistics and Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Huan Song
- West China Biomedical Big Data Center, West China Hospital, Sichuan University, Chengdu, China
| | - Karin Smedby
- Division of Clinical Epidemiology, Department of Medicine Solna, Karolinska Institutet, Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Fang Fang
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Qianwei Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
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Ye L, Tian C, Li Y, Pan H, Hu J, Shu L, Pan X. Hematopoietic aging: Cellular, molecular, and related mechanisms. Chin Med J (Engl) 2024; 137:1303-1312. [PMID: 37898877 PMCID: PMC11191024 DOI: 10.1097/cm9.0000000000002871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Indexed: 10/30/2023] Open
Abstract
ABSTRACT Aging is accompanied by significant inhibition of hematopoietic and immune system function and disruption of bone marrow structure. Aging-related alterations in the inflammatory response, immunity, and stem cell niches are at the root of hematopoietic aging. Understanding the molecular mechanisms underlying hematopoietic and bone marrow aging can aid the clinical treatment of aging-related diseases. In particular, it is unknown how the niche reprograms hematopoietic stem cells (HSCs) in an age-dependent manner to maintain normal hematopoiesis in elderly individuals. Recently, specific inhibitors and blood exchange methods have been shown to reshape the hematopoietic niche and reverse hematopoietic aging. Here, we present the latest scientific discoveries related to hematopoietic aging and hematopoietic system rejuvenation, discuss the relationships between hematopoietic niche aging and HSC aging, and describe related studies on stem cell-mediated regulation of hematopoietic aging, aiming to provide new ideas for further study.
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Affiliation(s)
- Li Ye
- The Stem Cells and Immune Cells Biomedical Techniques Integrated Engineering Laboratory of State and Regions, Cell Therapy Technology Transfer Medical Key Laboratory of Yunnan Province, Kunming Key Laboratory of Stem Cell and Regenerative Medicine, Basic Medical Laboratory, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, Yunnan 650032, China
- Department of Immunology of School of Basic Medicine of Guizhou Medical University, National and Local Joint Engineering Laboratory of Cell Engineering Biomedical Technology, Key Laboratory of Regenerative Medicine of Guizhou Province, State Key Laboratory of Efficacy and Utilization of Medicinal Plants Co-constructed by Province and Ministry, Key Laboratory of Translational Research of Adult Stem Cell of Chinese Academy of Medical Sciences, Guiyang, Guizhou 550025, China
| | - Chuan Tian
- The Stem Cells and Immune Cells Biomedical Techniques Integrated Engineering Laboratory of State and Regions, Cell Therapy Technology Transfer Medical Key Laboratory of Yunnan Province, Kunming Key Laboratory of Stem Cell and Regenerative Medicine, Basic Medical Laboratory, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, Yunnan 650032, China
| | - Ye Li
- The Stem Cells and Immune Cells Biomedical Techniques Integrated Engineering Laboratory of State and Regions, Cell Therapy Technology Transfer Medical Key Laboratory of Yunnan Province, Kunming Key Laboratory of Stem Cell and Regenerative Medicine, Basic Medical Laboratory, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, Yunnan 650032, China
- Department of Immunology of School of Basic Medicine of Guizhou Medical University, National and Local Joint Engineering Laboratory of Cell Engineering Biomedical Technology, Key Laboratory of Regenerative Medicine of Guizhou Province, State Key Laboratory of Efficacy and Utilization of Medicinal Plants Co-constructed by Province and Ministry, Key Laboratory of Translational Research of Adult Stem Cell of Chinese Academy of Medical Sciences, Guiyang, Guizhou 550025, China
| | - Hang Pan
- The Stem Cells and Immune Cells Biomedical Techniques Integrated Engineering Laboratory of State and Regions, Cell Therapy Technology Transfer Medical Key Laboratory of Yunnan Province, Kunming Key Laboratory of Stem Cell and Regenerative Medicine, Basic Medical Laboratory, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, Yunnan 650032, China
- Department of Immunology of School of Basic Medicine of Guizhou Medical University, National and Local Joint Engineering Laboratory of Cell Engineering Biomedical Technology, Key Laboratory of Regenerative Medicine of Guizhou Province, State Key Laboratory of Efficacy and Utilization of Medicinal Plants Co-constructed by Province and Ministry, Key Laboratory of Translational Research of Adult Stem Cell of Chinese Academy of Medical Sciences, Guiyang, Guizhou 550025, China
| | - Jinxiu Hu
- The Stem Cells and Immune Cells Biomedical Techniques Integrated Engineering Laboratory of State and Regions, Cell Therapy Technology Transfer Medical Key Laboratory of Yunnan Province, Kunming Key Laboratory of Stem Cell and Regenerative Medicine, Basic Medical Laboratory, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, Yunnan 650032, China
| | - Liping Shu
- Department of Immunology of School of Basic Medicine of Guizhou Medical University, National and Local Joint Engineering Laboratory of Cell Engineering Biomedical Technology, Key Laboratory of Regenerative Medicine of Guizhou Province, State Key Laboratory of Efficacy and Utilization of Medicinal Plants Co-constructed by Province and Ministry, Key Laboratory of Translational Research of Adult Stem Cell of Chinese Academy of Medical Sciences, Guiyang, Guizhou 550025, China
| | - Xinghua Pan
- The Stem Cells and Immune Cells Biomedical Techniques Integrated Engineering Laboratory of State and Regions, Cell Therapy Technology Transfer Medical Key Laboratory of Yunnan Province, Kunming Key Laboratory of Stem Cell and Regenerative Medicine, Basic Medical Laboratory, 920th Hospital of Joint Logistics Support Force, PLA, Kunming, Yunnan 650032, China
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Lee MW, Koh JS, Kang S, Ryu H, Song IC, Lee HJ, Yun HJ, Kim SY, Kim SS, Jo DY. Abdominal aortic calcification in patients newly diagnosed with essential thrombocythemia. Blood Res 2023; 58:173-180. [PMID: 37853439 PMCID: PMC10758625 DOI: 10.5045/br.2023.2023125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/04/2023] [Accepted: 09/27/2023] [Indexed: 10/20/2023] Open
Abstract
Background Although atherosclerosis is likely to be involved in the development of arterial thrombotic events in patients with essential thrombocythemia (ET), abdominal aortic calcification (AAC) has rarely been investigated. We evaluated the prevalence and clinical relevance of AAC at the time of ET diagnosis. Methods This retrospective study included patients newly diagnosed with ET who underwent abdominal computed tomography (CT) at the time of diagnosis between January 2002 and December 2021 at Chungnam National University Hospital, Daejeon, Korea. CT images were reviewed and an aortic calcification score was assigned. Results Of the 94 patients (median age, 62 yr; range, 18‒90 yr), AAC was detected in 62 (66.0%). AAC was most commonly mild (33.0%), followed by moderate (22.7%) and severe (5.3%). Old age [odds ratio (OR), 34.37; 95% confidence interval (CI), 12.32‒95.91; P<0.001] was an independent risk factor for AAC. The patients with AAC had a higher WBC count (11.8±4.7 vs. 9.7±2.9×109/L, P=0.017), higher neutrophil-to-lymphocyte ratio (4.3±2.7 vs. 3.1±1.5, P=0.039), and higher JAK2V617F positivity (81.5% vs. 58.8%, P=0.020) compared to those without AAC. AAC was an independent risk factor for arterial thrombotic vascular events that occurred before or at diagnosis of ET (OR, 4.12; 95% CI, 1.11‒15.85; P=0.034). Conclusion AAC is common in patients with ET and is associated with arterial thrombotic events.
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Affiliation(s)
- Myung-Won Lee
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Jeong Suk Koh
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Sora Kang
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hyewon Ryu
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Ik-Chan Song
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hyo-Jin Lee
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Hwan-Jung Yun
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Seon Young Kim
- Department of Laboratory Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Seong Soo Kim
- Department of Thoracic Radiology, Chungnam National University College of Medicine, Daejeon, Korea
| | - Deog-Yeon Jo
- Division of Hematology/Oncology, Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
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Salybekov AA, Hassanpour M. Unveiling the Genetic Footprint: Exploring Somatic Mutations in Peripheral Arterial Disease Progression. Biomedicines 2023; 11:2288. [PMID: 37626784 PMCID: PMC10452092 DOI: 10.3390/biomedicines11082288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/04/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Peripheral arterial diseases (PADs) are complex cardiovascular conditions influenced by environmental factors and somatic mutations in multiple genes involved in hematopoiesis and inflammation. While traditional risk factors, such as smoking, hypercholesterolemia, and hypertension, have been extensively studied, the role of somatic mutations in PAD progression remains underexplored. The present article intends to provide a comprehensive commentary of the molecular mechanisms, genetic landscape, prognostic significance, and clinical implications of somatic mutations in PADs. The expansion of clonal hematopoiesis of indeterminate potential (CHIP) clones in the circulating blood, named clonal hematopoiesis (CH), leads to the infiltration of these clones into atherosclerotic plaques and the production of inflammatory cytokines, increasing the risk of cardiovascular diseases, including PADs. Furthermore, recent experimental evidence has demonstrated the involvement of somatically mutated TP53 genes with a high variant allele frequency (VAF) in PAD development and prognosis. This review delves into the relationship between CH and PADs, elucidating the prevalence, impact, and underlying mechanisms of this association. This understanding paves the way for novel therapeutic approaches targeting CHIP to promote tissue regeneration and improve outcomes in PAD patients. It emphasizes the need for further research to fully unravel the genetic footprint of the disease and highlights potential clinical implications. The findings presented in this article lay the foundation for personalized medicine approaches and open avenues for the development of targeted therapies based on somatic mutation profiling.
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Circulating Monocyte Subsets and Transcatheter Aortic Valve Replacement. Int J Mol Sci 2022; 23:ijms23105303. [PMID: 35628113 PMCID: PMC9141814 DOI: 10.3390/ijms23105303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/02/2022] [Accepted: 05/07/2022] [Indexed: 11/17/2022] Open
Abstract
Transcatheter aortic valve replacement (TAVR), as an alternative to open heart surgery, has revolutionized the treatment of severe aortic valve stenosis (AVS), the most common valvular disorder in the elderly. AVS is now considered a form of atherosclerosis and, like the latter, partly of inflammatory origin. Patients with high-grade AVS have a highly disturbed blood flow associated with high levels of shear stress. The immediate reopening of the valve during TAVR leads to a sudden restoration of a normal blood flow hemodynamic. Despite its good prognosis for patients, TAVR remains associated with bleeding or thrombotic postprocedural complications, involving mechanisms that are still poorly understood. Many studies report the close link between blood coagulation and inflammation, termed thromboinflammation, including monocytes as a major actor. The TAVR procedure represents a unique opportunity to study the influence of shear stress on human monocytes, key mediators of inflammation and hemostasis processes. The purpose of this study was to conduct a review of the literature to provide a comprehensive overview of the impact of TAVR on monocyte phenotype and subset repartition and the association of these parameters with the clinical outcomes of patients with severe AVS who underwent TAVR.
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Grayson PC, Kaplan MJ. Diseases of blood vessels: Immune system involvement in vasculitis and vasculopathy. Semin Immunopathol 2022; 44:255-258. [PMID: 35503576 PMCID: PMC9063614 DOI: 10.1007/s00281-022-00929-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Peter C Grayson
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health / NIAMS, 10 Center Drive, Building 10, 12N Rm 248B, Bethesda, MD, 20892, USA.
| | - Mariana J Kaplan
- Systemic Autoimmunity Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health / NIAMS, 10 Center Drive, Building 10, 12N Rm 248B, Bethesda, MD, 20892, USA
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