1
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Cheng JH, Cai WX, Xiang XH, Zhou MY, Sun X, Ye H, Li R. Platelet-to-lymphocyte ratios as a haematological marker of synovitis in rheumatoid arthritis with normal acute phase reactant level. Ann Med 2024; 56:2346546. [PMID: 38847883 PMCID: PMC11164179 DOI: 10.1080/07853890.2024.2346546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/27/2024] [Indexed: 06/12/2024] Open
Abstract
BACKGROUND Although normal acute phase reactants (APRs) play an important role in assessing disease activity of rheumatoid arthritis (RA), some studies pointed out the discordance between disease activity and APR level. Neutrophil-to-lymphocyte ratios (NLRs), platelet-to-lymphocyte ratios (PLRs) and lymphocyte-to-monocyte ratios (LMRs) have been reported to be sensitive measures of inflammatory reaction. This study aims to explore the value of these haematological makers in assessment of APR-negative RA patients. METHODS Out of a cohort of 418 consecutive patients with RA, we enrolled 135 patients with normal APR for this study. We performed ultrasound assessments to evaluate synovitis and bone erosion in the affected joints. Synovitis was evaluated by ultrasound grey scale (GS) and power Doppler (PD) with semi-quantitative scoring (0-3). Demographic, clinical and laboratory data were collected from the patients. Disease Activity Score-28 joints (DAS28), NLR, MLR and PLR were calculated. RESULTS In RA patients with normal APR, PLR exhibited a positive correlation with ultrasound-detected synovitis and bone erosion, whereas NLR, MLR showed no significant correlation with ultrasonography parameters. The area under the ROC curve (AUC) for identifying synovitis with a GS grade ≥2 based on a PLR cutoff value of ≥159.6 was 0.7868 (sensitivity: 80.95%, specificity: 74.24%). For synovitis with a PD grade ≥2, the AUC was 0.7690, using a PLR cutoff value of ≥166.1 (sensitivity: 68.0%, specificity: 83.87%). CONCLUSIONS Our findings suggested that PLR might be a reliable and cost-effective marker for identifying moderate-to-severe synovitis in RA patients with normal APR.
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Affiliation(s)
- Jia-Hui Cheng
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China
| | - Wen-Xin Cai
- Department of Rheumatology and Immunology, Beijing Hospital, Beijing, China
| | - Xiao-Hong Xiang
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China
| | - Meng-yan Zhou
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China
| | - Xing Sun
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China
| | - Hua Ye
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China
| | - Ru Li
- Department of Rheumatology and Immunology, Peking University People’s Hospital, Beijing, China
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2
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Poscablo DM, Worthington AK, Smith-Berdan S, Rommel MGE, Manso BA, Adili R, Mok L, Reggiardo RE, Cool T, Mogharrab R, Myers J, Dahmen S, Medina P, Beaudin AE, Boyer SW, Holinstat M, Jonsson VD, Forsberg EC. An age-progressive platelet differentiation path from hematopoietic stem cells causes exacerbated thrombosis. Cell 2024; 187:3090-3107.e21. [PMID: 38749423 DOI: 10.1016/j.cell.2024.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 02/05/2024] [Accepted: 04/16/2024] [Indexed: 06/09/2024]
Abstract
Platelet dysregulation is drastically increased with advanced age and contributes to making cardiovascular disorders the leading cause of death of elderly humans. Here, we reveal a direct differentiation pathway from hematopoietic stem cells into platelets that is progressively propagated upon aging. Remarkably, the aging-enriched platelet path is decoupled from all other hematopoietic lineages, including erythropoiesis, and operates as an additional layer in parallel with canonical platelet production. This results in two molecularly and functionally distinct populations of megakaryocyte progenitors. The age-induced megakaryocyte progenitors have a profoundly enhanced capacity to engraft, expand, restore, and reconstitute platelets in situ and upon transplantation and produce an additional platelet population in old mice. The two pools of co-existing platelets cause age-related thrombocytosis and dramatically increased thrombosis in vivo. Strikingly, aging-enriched platelets are functionally hyper-reactive compared with the canonical platelet populations. These findings reveal stem cell-based aging as a mechanism for platelet dysregulation and age-induced thrombosis.
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Affiliation(s)
- Donna M Poscablo
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Atesh K Worthington
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Stephanie Smith-Berdan
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Marcel G E Rommel
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Bryce A Manso
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Reheman Adili
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lydia Mok
- Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Roman E Reggiardo
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Taylor Cool
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Raana Mogharrab
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Jenna Myers
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Steven Dahmen
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Paloma Medina
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Anna E Beaudin
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Scott W Boyer
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Michael Holinstat
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Vanessa D Jonsson
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Applied Mathematics, Genomics Institute, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - E Camilla Forsberg
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
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3
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Ross JB, Myers LM, Noh JJ, Collins MM, Carmody AB, Messer RJ, Dhuey E, Hasenkrug KJ, Weissman IL. Depleting myeloid-biased haematopoietic stem cells rejuvenates aged immunity. Nature 2024; 628:162-170. [PMID: 38538791 DOI: 10.1038/s41586-024-07238-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/26/2024] [Indexed: 04/01/2024]
Abstract
Ageing of the immune system is characterized by decreased lymphopoiesis and adaptive immunity, and increased inflammation and myeloid pathologies1,2. Age-related changes in populations of self-renewing haematopoietic stem cells (HSCs) are thought to underlie these phenomena3. During youth, HSCs with balanced output of lymphoid and myeloid cells (bal-HSCs) predominate over HSCs with myeloid-biased output (my-HSCs), thereby promoting the lymphopoiesis required for initiating adaptive immune responses, while limiting the production of myeloid cells, which can be pro-inflammatory4. Ageing is associated with increased proportions of my-HSCs, resulting in decreased lymphopoiesis and increased myelopoiesis3,5,6. Transfer of bal-HSCs results in abundant lymphoid and myeloid cells, a stable phenotype that is retained after secondary transfer; my-HSCs also retain their patterns of production after secondary transfer5. The origin and potential interconversion of these two subsets is still unclear. If they are separate subsets postnatally, it might be possible to reverse the ageing phenotype by eliminating my-HSCs in aged mice. Here we demonstrate that antibody-mediated depletion of my-HSCs in aged mice restores characteristic features of a more youthful immune system, including increasing common lymphocyte progenitors, naive T cells and B cells, while decreasing age-related markers of immune decline. Depletion of my-HSCs in aged mice improves primary and secondary adaptive immune responses to viral infection. These findings may have relevance to the understanding and intervention of diseases exacerbated or caused by dominance of the haematopoietic system by my-HSCs.
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Affiliation(s)
- Jason B Ross
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Lara M Myers
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Joseph J Noh
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Madison M Collins
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
- Department of Biological and Physical Sciences, Montana State University Billings, Billings, MT, USA
| | - Aaron B Carmody
- Research Technologies Branch, Rocky Mountain Laboratories, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Ronald J Messer
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Erica Dhuey
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Kim J Hasenkrug
- Laboratory of Persistent Viral Diseases, Rocky Mountain Laboratories, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA.
| | - Irving L Weissman
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA.
- Ludwig Center for Cancer Stem Cell Research and Medicine, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.
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4
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Chagraoui J, Girard S, Mallinger L, Mayotte N, Tellechea MF, Sauvageau G. KBTBD4-mediated reduction of MYC is critical for hematopoietic stem cell expansion upon UM171 treatment. Blood 2024; 143:882-894. [PMID: 38207291 DOI: 10.1182/blood.2023021342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/13/2024] Open
Abstract
ABSTRACT Ex vivo expansion of hematopoietic stem cells (HSCs) is gaining importance for cell and gene therapy, and requires a shift from dormancy state to activation and cycling. However, abnormal or excessive HSC activation results in reduced self-renewal ability and increased propensity for myeloid-biased differentiation. We now report that activation of the E3 ligase complex CRL3KBTBD4 by UM171 not only induces epigenetic changes through CoREST1 degradation but also controls chromatin-bound master regulator of cell cycle entry and proliferative metabolism (MYC) levels to prevent excessive activation and maintain lympho-myeloid potential of expanded populations. Furthermore, reconstitution activity and multipotency of UM171-treated HSCs are specifically compromised when MYC levels are experimentally increased despite degradation of CoREST1.
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Affiliation(s)
- Jalila Chagraoui
- Molecular Genetics of Stem Cells Laboratory, Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Simon Girard
- Molecular Genetics of Stem Cells Laboratory, Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Laure Mallinger
- Molecular Genetics of Stem Cells Laboratory, Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Nadine Mayotte
- Molecular Genetics of Stem Cells Laboratory, Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Maria Florencia Tellechea
- Molecular Genetics of Stem Cells Laboratory, Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Guy Sauvageau
- Molecular Genetics of Stem Cells Laboratory, Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
- Division of Hematology, Maisonneuve-Rosemont Hospital, Montreal, QC, Canada
- Department of Medicine, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
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5
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Fitzgerald H, Bonin JL, Khan S, Eid M, Sadhu S, Rahtes A, Lipscomb M, Biswas N, Decker C, Nabage M, Ramos RB, Duarte GA, Marinello M, Chen A, Aydin HB, Mena HA, Gilliard K, Spite M, DiPersio CM, Adam AP, MacNamara KC, Fredman G. Resolvin D2-G-Protein Coupled Receptor 18 Enhances Bone Marrow Function and Limits Steatosis and Hepatic Collagen Accumulation in Aging. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:1953-1968. [PMID: 37717941 PMCID: PMC10699127 DOI: 10.1016/j.ajpath.2023.08.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 07/20/2023] [Accepted: 08/08/2023] [Indexed: 09/19/2023]
Abstract
Aging is associated with nonresolving inflammation and tissue dysfunction. Resolvin D2 (RvD2) is a proresolving ligand that acts through the G-protein-coupled receptor called GPR18. Unbiased RNA sequencing revealed increased Gpr18 expression in macrophages from old mice, and in livers from elderly humans, which was associated with increased steatosis and fibrosis in middle-aged (MA) and old mice. MA mice that lacked GPR18 on myeloid cells had exacerbated steatosis and hepatic fibrosis, which was associated with a decline in Mac2+ macrophages. Treatment of MA mice with RvD2 reduced steatosis and decreased hepatic fibrosis, correlating with increased Mac2+ macrophages, increased monocyte-derived macrophages, and elevated numbers of monocytes in the liver, blood, and bone marrow. RvD2 acted directly on the bone marrow to increase monocyte-macrophage progenitors. A transplantation assay further demonstrated that bone marrow from old mice facilitated hepatic collagen accumulation in young mice. Transient RvD2 treatment to mice transplanted with bone marrow from old mice prevented hepatic collagen accumulation. Together, this study demonstrates that RvD2-GPR18 signaling controls steatosis and fibrosis and provides a mechanistic-based therapy for promoting liver repair in aging.
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Affiliation(s)
- Hannah Fitzgerald
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Jesse L Bonin
- The Department of Immunology and Microbial Disease, Albany Medical College, Albany, New York
| | - Sayeed Khan
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Maya Eid
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Sudeshna Sadhu
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Allison Rahtes
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Masharh Lipscomb
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Nirupam Biswas
- The Department of Immunology and Microbial Disease, Albany Medical College, Albany, New York
| | - Christa Decker
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Melisande Nabage
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Ramon Bossardi Ramos
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Giesse Albeche Duarte
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Michael Marinello
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Anne Chen
- Department of Pathology, Albany Medical College, Albany, New York
| | | | - Hebe Agustina Mena
- Department of Anesthesiology, Perioperative and Pain Medicine, Center for Experimental Therapeutics and Reperfusion Injury, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kurrim Gilliard
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Matthew Spite
- Department of Anesthesiology, Perioperative and Pain Medicine, Center for Experimental Therapeutics and Reperfusion Injury, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - C Michael DiPersio
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York; Department of Surgery, Albany Medical College, Albany, New York
| | - Alejandro P Adam
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Katherine C MacNamara
- The Department of Immunology and Microbial Disease, Albany Medical College, Albany, New York.
| | - Gabrielle Fredman
- The Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York.
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6
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Pappert M, Khosla S, Doolittle M. Influences of Aged Bone Marrow Macrophages on Skeletal Health and Senescence. Curr Osteoporos Rep 2023; 21:771-778. [PMID: 37688671 PMCID: PMC10724341 DOI: 10.1007/s11914-023-00820-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/25/2023] [Indexed: 09/11/2023]
Abstract
PURPOSE OF REVIEW The purpose of this review is to discuss the role of macrophages in the regulation of skeletal health with age, particularly in regard to both established and unexplored mechanisms in driving inflammation and senescence. RECENT FINDINGS A multitude of research has uncovered mechanisms of intrinsic aging in macrophages, detrimental factors released by these immune cells, and crosstalk from senescent mesenchymal cell types, which altogether drive age-related bone loss. Furthermore, bone marrow macrophages were recently proposed to be responsible for the megakaryocytic shift during aging and overall maintenance of the hematopoietic niche. Studies on extra-skeletal macrophages have shed light on possible conserved mechanisms within bone and highlight the importance of these cells in systemic aging. Macrophages are a critically important cell type in maintaining skeletal homeostasis with age. New discoveries in this area are of utmost importance in fully understanding the pathogenesis of osteoporosis in aged individuals.
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Affiliation(s)
- Moritz Pappert
- Division of Endocrinology, Diabetes and Metabolism, Mayo Clinic, Rochester, MN, USA
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA
- Department of Medicine, Paracelsus Medical University, Salzburg, Austria
| | - Sundeep Khosla
- Division of Endocrinology, Diabetes and Metabolism, Mayo Clinic, Rochester, MN, USA
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA
| | - Madison Doolittle
- Division of Endocrinology, Diabetes and Metabolism, Mayo Clinic, Rochester, MN, USA.
- Robert and Arlene Kogod Center On Aging, Mayo Clinic, Rochester, MN, USA.
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7
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Hong T, Li J, Guo L, Cavalier M, Wang T, Dou Y, DeLaFuente A, Fang S, Guzman A, Wohlan K, Kapadia C, Rosas C, Yang Y, Yin CC, Li S, You MJ, Cheng X, Goodell MA, Zhou Y, Huang Y. TET2 modulates spatial relocalization of heterochromatin in aged hematopoietic stem and progenitor cells. NATURE AGING 2023; 3:1387-1400. [PMID: 37884767 PMCID: PMC11209854 DOI: 10.1038/s43587-023-00505-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 09/21/2023] [Indexed: 10/28/2023]
Abstract
DNA methylation deregulation at partially methylated domains (PMDs) represents an epigenetic signature of aging and cancer, yet the underlying molecular basis and resulting biological consequences remain unresolved. We report herein a mechanistic link between disrupted DNA methylation at PMDs and the spatial relocalization of H3K9me3-marked heterochromatin in aged hematopoietic stem and progenitor cells (HSPCs) or those with impaired DNA methylation. We uncover that TET2 modulates the spatial redistribution of H3K9me3-marked heterochromatin to mediate the upregulation of endogenous retroviruses (ERVs) and interferon-stimulated genes (ISGs), hence contributing to functional decline of aged HSPCs. TET2-deficient HSPCs retain perinuclear distribution of heterochromatin and exhibit age-related clonal expansion. Reverse transcriptase inhibitors suppress ERVs and ISGs expression, thereby restoring age-related defects in aged HSPCs. Collectively, our findings deepen the understanding of the functional interplay between DNA methylation and histone modifications, which is vital for maintaining heterochromatin function and safeguarding genome stability in stem cells.
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Affiliation(s)
- Tingting Hong
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Jia Li
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA.
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
| | - Lei Guo
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Maryn Cavalier
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Tianlu Wang
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Yaling Dou
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Aaron DeLaFuente
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Shaohai Fang
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Anna Guzman
- Department of Molecular Cell Biology, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
| | - Katherina Wohlan
- Department of Molecular Cell Biology, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
| | - Chiraag Kapadia
- Department of Molecular Cell Biology, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
| | - Carina Rosas
- Department of Molecular Cell Biology, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
| | - Yaling Yang
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - C Cameron Yin
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Shaoying Li
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M James You
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xiaodong Cheng
- Department of Epigenetics and Molecular Carcinogenesis, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Margaret A Goodell
- Department of Molecular Cell Biology, Baylor College of Medicine, Houston, TX, USA
- Stem Cells and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, USA
| | - Yubin Zhou
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA.
- Department of Translational Medical Sciences, School of Medicine, Texas A&M University, Houston, TX, USA.
| | - Yun Huang
- Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA.
- Department of Translational Medical Sciences, School of Medicine, Texas A&M University, Houston, TX, USA.
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8
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Rundberg Nilsson AJ, Xian H, Shalapour S, Cammenga J, Karin M. IRF1 regulates self-renewal and stress responsiveness to support hematopoietic stem cell maintenance. SCIENCE ADVANCES 2023; 9:eadg5391. [PMID: 37889967 PMCID: PMC10610924 DOI: 10.1126/sciadv.adg5391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023]
Abstract
Hematopoietic stem cells (HSCs) are tightly controlled to maintain a balance between blood cell production and self-renewal. While inflammation-related signaling is a critical regulator of HSC activity, the underlying mechanisms and the precise functions of specific factors under steady-state and stress conditions remain incompletely understood. We investigated the role of interferon regulatory factor 1 (IRF1), a transcription factor that is affected by multiple inflammatory stimuli, in HSC regulation. Our findings demonstrate that the loss of IRF1 from mouse HSCs significantly impairs self-renewal, increases stress-induced proliferation, and confers resistance to apoptosis. In addition, given the frequent abnormal expression of IRF1 in leukemia, we explored the potential of IRF1 expression level as a stratification marker for human acute myeloid leukemia. We show that IRF1-based stratification identifies distinct cancer-related signatures in patient subgroups. These findings establish IRF1 as a pivotal HSC controller and provide previously unknown insights into HSC regulation, with potential implications to IRF1 functions in the context of leukemia.
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Affiliation(s)
- Alexandra J. S. Rundberg Nilsson
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California San Diego, La Jolla, CA, USA
- Division of Molecular Medicine and Gene Therapy, Institution for Laboratory Medicine, Medical Faculty, Lund University, Lund, Sweden
- Lund Stem Cell Center, Medical Faculty, Lund University, Lund, Sweden
| | - Hongxu Xian
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Shabnam Shalapour
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jörg Cammenga
- Division of Molecular Medicine and Gene Therapy, Institution for Laboratory Medicine, Medical Faculty, Lund University, Lund, Sweden
- Lund Stem Cell Center, Medical Faculty, Lund University, Lund, Sweden
| | - Michael Karin
- Laboratory of Gene Regulation and Signal Transduction, Department of Pharmacology, School of Medicine, University of California San Diego, La Jolla, CA, USA
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9
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Valeriani E, Bartimoccia S, Pignatelli P, Pastori D. Aging and Antithrombotic Treatment. Antioxid Redox Signal 2023. [PMID: 37742116 DOI: 10.1089/ars.2023.0373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/25/2023]
Abstract
Significance: Several aging-related pathophysiological mechanisms have been described to contribute to increased thrombotic risk in the elderly, including oxidative stress, endothelial dysfunction, and platelet and coagulation cascade activation. Antithrombotic treatment in the elderly should be individualized. Recent Advances: Recent studies have clarified some pathophysiological mechanisms of enhanced oxidative stress and thrombotic alterations in older adults. In the last decade, randomized trials have evaluated different antithrombotic strategies to reduce the risk of cardiovascular events in these patients. Critical Issues: The proportion of elderly patients included in clinical trials is generally low, thus not reflecting the daily clinical practice. There is no consensus on the most appropriate antithrombotic treatment in the elderly, also considering that bleeding risk management may be challenging in this high-risk subgroup of patients. Routine antiplatelet treatment is not a valid strategy for the primary prevention of cardiovascular events given the associated high risk of bleeding. In elderly patients with acute coronary syndrome, low-dose prasugrel or clopidogrel, shorter dual antiplatelet therapy, and no pretreatment before stent placement should be considered. Advanced age should not be the only reason for the underuse of oral anticoagulation in patients with atrial fibrillation, with direct oral anticoagulants preferred over warfarin for stroke prevention. Instead, a case-by-case clinical evaluation is warranted based on patient's bleeding risk also. Future Directions: There is a need for a structured tailored approach to manage thrombotic risk in elderly patients. The choice of the most appropriate antithrombotic treatment should balance efficacy and safety to reduce the risk of bleeding.
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Affiliation(s)
- Emanuele Valeriani
- Department of General Surgery, Surgical Specialties and Organ Transplantation "Paride Stefanini", Sapienza University of Rome, Rome, Italy
- Infectious Disease Department, Umberto I Hospital of Rome, Rome, Italy
| | - Simona Bartimoccia
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Pasquale Pignatelli
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
| | - Daniele Pastori
- Department of Clinical Internal, Anesthesiological and Cardiovascular Sciences, Sapienza University of Rome, Rome, Italy
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10
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Liao W, Liu C, Yang K, Chen J, Wu Y, Zhang S, Yu K, Wang L, Ran L, Chen M, Chen F, Xu Y, Wang S, Wang F, Zhang Q, Zhao J, Ye L, Du C, Wang J. Aged hematopoietic stem cells entrap regulatory T cells to create a prosurvival microenvironment. Cell Mol Immunol 2023; 20:1216-1231. [PMID: 37644165 PMCID: PMC10541885 DOI: 10.1038/s41423-023-01072-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 07/02/2023] [Accepted: 07/19/2023] [Indexed: 08/31/2023] Open
Abstract
Although DNA mutation drives stem cell aging, how mutation-accumulated stem cells obtain clonal advantage during aging remains poorly understood. Here, using a mouse model of irradiation-induced premature aging and middle-aged mice, we show that DNA mutation accumulation in hematopoietic stem cells (HSCs) during aging upregulates their surface expression of major histocompatibility complex class II (MHCII). MHCII upregulation increases the chance for recognition by bone marrow (BM)-resident regulatory T cells (Tregs), resulting in their clonal expansion and accumulation in the HSC niche. On the basis of the establishment of connexin 43 (Cx43)-mediated gap junctions, BM Tregs transfer cyclic adenosine monophosphate (cAMP) to aged HSCs to diminish apoptotic priming and promote their survival via activation of protein kinase A (PKA) signaling. Importantly, targeting the HSC-Treg interaction or depleting Tregs effectively prevents the premature/physiological aging of HSCs. These findings show that aged HSCs use an active self-protective mechanism by entrapping local Tregs to construct a prosurvival niche and obtain a clonal advantage.
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Affiliation(s)
- Weinian Liao
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Chaonan Liu
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Ke Yang
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, China
| | - Jun Chen
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Yiding Wu
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Shuzhen Zhang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Kuan Yu
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Lisha Wang
- Institute of Immunology, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Li Ran
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, China
| | - Mo Chen
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Fang Chen
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Yang Xu
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Song Wang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Fengchao Wang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China
| | - Qian Zhang
- National Key Laboratory of Medical Immunology, Institute of Immunology, Naval Medical University, 200433, Shanghai, China
| | - Jinghong Zhao
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), 400037, Chongqing, China
| | - Lilin Ye
- Institute of Immunology, Army Medical University (Third Military Medical University), 400038, Chongqing, China.
| | - Changhong Du
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China.
| | - Junping Wang
- State Key Laboratory of Trauma, Burns, and Combined Injury, Institute of Combined Injury, Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Army Medical University (Third Military Medical University), 400038, Chongqing, China.
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11
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Karnik SJ, Nazzal MK, Kacena MA, Bruzzaniti A. Megakaryocyte Secreted Factors Regulate Bone Marrow Niche Cells During Skeletal Homeostasis, Aging, and Disease. Calcif Tissue Int 2023; 113:83-95. [PMID: 37243755 PMCID: PMC11179715 DOI: 10.1007/s00223-023-01095-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/01/2023] [Indexed: 05/29/2023]
Abstract
The bone marrow microenvironment contains a diverse array of cell types under extensive regulatory control and provides for a novel and complex mechanism for bone regulation. Megakaryocytes (MKs) are one such cell type that potentially acts as a master regulator of the bone marrow microenvironment due to its effects on hematopoiesis, osteoblastogenesis, and osteoclastogenesis. While several of these processes are induced/inhibited through MK secreted factors, others are primarily regulated by direct cell-cell contact. Notably, the regulatory effects that MKs exert on these different cell populations has been found to change with aging and disease states. Overall, MKs are a critical component of the bone marrow that should be considered when examining regulation of the skeletal microenvironment. An increased understanding of the role of MKs in these physiological processes may provide insight into novel therapies that can be used to target specific pathways important in hematopoietic and skeletal disorders.
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Affiliation(s)
- Sonali J Karnik
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Murad K Nazzal
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA.
| | - Angela Bruzzaniti
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, USA.
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12
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Li X, Li C, Zhang W, Wang Y, Qian P, Huang H. Inflammation and aging: signaling pathways and intervention therapies. Signal Transduct Target Ther 2023; 8:239. [PMID: 37291105 PMCID: PMC10248351 DOI: 10.1038/s41392-023-01502-8] [Citation(s) in RCA: 104] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 04/26/2023] [Accepted: 05/15/2023] [Indexed: 06/10/2023] Open
Abstract
Aging is characterized by systemic chronic inflammation, which is accompanied by cellular senescence, immunosenescence, organ dysfunction, and age-related diseases. Given the multidimensional complexity of aging, there is an urgent need for a systematic organization of inflammaging through dimensionality reduction. Factors secreted by senescent cells, known as the senescence-associated secretory phenotype (SASP), promote chronic inflammation and can induce senescence in normal cells. At the same time, chronic inflammation accelerates the senescence of immune cells, resulting in weakened immune function and an inability to clear senescent cells and inflammatory factors, which creates a vicious cycle of inflammation and senescence. Persistently elevated inflammation levels in organs such as the bone marrow, liver, and lungs cannot be eliminated in time, leading to organ damage and aging-related diseases. Therefore, inflammation has been recognized as an endogenous factor in aging, and the elimination of inflammation could be a potential strategy for anti-aging. Here we discuss inflammaging at the molecular, cellular, organ, and disease levels, and review current aging models, the implications of cutting-edge single cell technologies, as well as anti-aging strategies. Since preventing and alleviating aging-related diseases and improving the overall quality of life are the ultimate goals of aging research, our review highlights the critical features and potential mechanisms of inflammation and aging, along with the latest developments and future directions in aging research, providing a theoretical foundation for novel and practical anti-aging strategies.
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Affiliation(s)
- Xia Li
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou, 311121, China
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, 310058, China
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou, 310058, China
| | - Chentao Li
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou, 311121, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Haining, China
| | - Wanying Zhang
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Haining, China
| | - Yanan Wang
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Zhejiang University, Haining, China
| | - Pengxu Qian
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou, 311121, China.
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, 310058, China.
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou, 310058, China.
- Center for Stem Cell and Regenerative Medicine and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - He Huang
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
- Liangzhu Laboratory, Zhejiang University Medical Center, 1369 West Wenyi Road, Hangzhou, 311121, China.
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, 310058, China.
- Zhejiang Province Engineering Laboratory for Stem Cell and Immunity Therapy, Hangzhou, 310058, China.
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13
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Yang F, Nourse C, Helgason GV, Kirschner K. Unraveling Heterogeneity in the Aging Hematopoietic Stem Cell Compartment: An Insight From Single-cell Approaches. Hemasphere 2023; 7:e895. [PMID: 37304939 PMCID: PMC10256339 DOI: 10.1097/hs9.0000000000000895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/18/2023] [Indexed: 06/13/2023] Open
Abstract
Specific cell types and, therefore, organs respond differently during aging. This is also true for the hematopoietic system, where it has been demonstrated that hematopoietic stem cells alter a variety of features, such as their metabolism, and accumulate DNA damage, which can lead to clonal outgrowth over time. In addition, profound changes in the bone marrow microenvironment upon aging lead to senescence in certain cell types such as mesenchymal stem cells and result in increased inflammation. This heterogeneity makes it difficult to pinpoint the molecular drivers of organismal aging gained from bulk approaches, such as RNA sequencing. A better understanding of the heterogeneity underlying the aging process in the hematopoietic compartment is, therefore, needed. With the advances of single-cell technologies in recent years, it is now possible to address fundamental questions of aging. In this review, we discuss how single-cell approaches can and indeed are already being used to understand changes observed during aging in the hematopoietic compartment. We will touch on established and novel methods for flow cytometric detection, single-cell culture approaches, and single-cell omics.
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Affiliation(s)
- Fei Yang
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
| | - Craig Nourse
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
| | - G. Vignir Helgason
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
| | - Kristina Kirschner
- School of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom
- Cancer Research UK Beatson Institute, Glasgow, United Kingdom
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14
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Zeng X, Li X, Li X, Wei C, Shi C, Hu K, Kong D, Luo Q, Xu Y, Shan W, Zhang M, Shi J, Feng J, Han Y, Huang H, Qian P. Fecal microbiota transplantation from young mice rejuvenates aged hematopoietic stem cells by suppressing inflammation. Blood 2023; 141:1691-1707. [PMID: 36638348 PMCID: PMC10646769 DOI: 10.1182/blood.2022017514] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 12/05/2022] [Accepted: 01/03/2023] [Indexed: 01/15/2023] Open
Abstract
Hematopoietic stem cell (HSC) aging is accompanied by hematopoietic reconstitution dysfunction, including loss of regenerative and engraftment ability, myeloid differentiation bias, and elevated risks of hematopoietic malignancies. Gut microbiota, a key regulator of host health and immunity, has recently been reported to affect hematopoiesis. However, there is currently limited empirical evidence explaining the direct impact of gut microbiome on aging hematopoiesis. In this study, we performed fecal microbiota transplantation (FMT) from young mice to aged mice and observed a significant increment in lymphoid differentiation and decrease in myeloid differentiation in aged recipient mice. Furthermore, FMT from young mice rejuvenated aged HSCs with enhanced short-term and long-term hematopoietic repopulation capacity. Mechanistically, single-cell RNA sequencing deciphered that FMT from young mice mitigated inflammatory signals, upregulated the FoxO signaling pathway, and promoted lymphoid differentiation of HSCs during aging. Finally, integrated microbiome and metabolome analyses uncovered that FMT reshaped gut microbiota composition and metabolite landscape, and Lachnospiraceae and tryptophan-associated metabolites promoted the recovery of hematopoiesis and rejuvenated aged HSCs. Together, our study highlights the paramount importance of the gut microbiota in HSC aging and provides insights into therapeutic strategies for aging-related hematologic disorders.
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Affiliation(s)
- Xiangjun Zeng
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Xiaoqing Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Xia Li
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Cong Wei
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Ce Shi
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Kejia Hu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Delin Kong
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Qian Luo
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Yulin Xu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Wei Shan
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Meng Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Jimin Shi
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Jingjing Feng
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Yingli Han
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Pengxu Qian
- Bone Marrow Transplantation Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, China
- Institute of Hematology, Zhejiang University, Hangzhou, China
- Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
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15
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Shevyrev D, Tereshchenko V, Berezina TN, Rybtsov S. Hematopoietic Stem Cells and the Immune System in Development and Aging. Int J Mol Sci 2023; 24:ijms24065862. [PMID: 36982935 PMCID: PMC10056303 DOI: 10.3390/ijms24065862] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/13/2023] [Accepted: 03/16/2023] [Indexed: 03/30/2023] Open
Abstract
Hematopoietic stem cells (HSCs) support haematopoiesis throughout life and give rise to the whole variety of cells of the immune system. Developing in the early embryo, passing through the precursor stage, and maturing into the first HSCs, they undergo a fairly large number of divisions while maintaining a high regenerative potential due to high repair activity. This potential is greatly reduced in adult HSCs. They go into a state of dormancy and anaerobic metabolism to maintain their stemness throughout life. However, with age, changes occur in the pool of HSCs that negatively affect haematopoiesis and the effectiveness of immunity. Niche aging and accumulation of mutations with age reduces the ability of HSCs to self-renew and changes their differentiation potential. This is accompanied by a decrease in clonal diversity and a disturbance of lymphopoiesis (decrease in the formation of naive T- and B-cells) and the predominance of myeloid haematopoiesis. Aging also affects mature cells, regardless of HSC, therefore, phagocytic activity and the intensity of the oxidative burst decrease, and the efficiency of processing and presentation of antigens by myeloid cells is impaired. Aging cells of innate and adaptive immunity produce factors that form a chronic inflammatory background. All these processes have a serious negative impact on the protective properties of the immune system, increasing inflammation, the risk of developing autoimmune, oncological, and cardiovascular diseases with age. Understanding the mechanisms of reducing the regenerative potential in a comparative analysis of embryonic and aging HSCs, the features of inflammatory aging will allow us to get closer to deciphering the programs for the development, aging, regeneration and rejuvenation of HSCs and the immune system.
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Affiliation(s)
- Daniil Shevyrev
- Centre for Cell Technology and Immunology, Sirius University of Science and Technology, Sirius, 354340 Sochi, Russia
| | - Valeriy Tereshchenko
- Centre for Cell Technology and Immunology, Sirius University of Science and Technology, Sirius, 354340 Sochi, Russia
| | - Tatiana N Berezina
- Department of Scientific Basis of Extreme Psychology, Moscow State University of Psychology and Education, 127051 Moscow, Russia
| | - Stanislav Rybtsov
- Centre for Cell Technology and Immunology, Sirius University of Science and Technology, Sirius, 354340 Sochi, Russia
- Centre for Regenerative Medicine, University of Edinburgh, Edinburgh EH8 9YL, UK
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16
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Rundberg Nilsson A, Xian H, Shalapour S, Cammenga J, Karin M. IRF1 regulates self-renewal and stress-responsiveness to support hematopoietic stem cell maintenance. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.24.525321. [PMID: 36747722 PMCID: PMC9900858 DOI: 10.1101/2023.01.24.525321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Inflammatory mediators induce emergency myelopoiesis and cycling of adult hematopoietic stem cells (HSCs) through incompletely understood mechanisms. To suppress the unwanted effects of inflammation and preserve its beneficial outcomes, the mechanisms by which inflammation affects hematopoiesis need to be fully elucidated. Rather than focusing on specific inflammatory stimuli, we here investigated the role of transcription factor Interferon (IFN) regulatory factor 1 (IRF1), which receives input from several inflammatory signaling pathways. We identify IRF1 as a master HSC regulator. IRF1 loss impairs HSC self-renewal, increases stress-induced cell cycle activation, and confers apoptosis resistance. Transcriptomic analysis revealed an aged, inflammatory signature devoid of IFN signaling with reduced megakaryocytic/erythroid priming and antigen presentation in IRF1-deficient HSCs. Finally, we conducted IRF1-based AML patient stratification to identify groups with distinct proliferative, survival and differentiation features, overlapping with our murine HSC results. Our findings position IRF1 as a pivotal regulator of HSC preservation and stress-induced responses.
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Affiliation(s)
- Alexandra Rundberg Nilsson
- Department of Pharmacology, Laboratory of Gene Regulation and
Signal Transduction, University of California San Diego (UCSD), United States
- Medical Faculty, Division of Molecular Medicine and Gene Therapy,
Institution for Laboratory Medicine, Lund University, Sweden
- Medical Faculty, Lund Stem Cell Center, Lund University,
Sweden
- Lead contact
| | - Hongxu Xian
- Department of Pharmacology, Laboratory of Gene Regulation and
Signal Transduction, University of California San Diego (UCSD), United States
| | - Shabnam Shalapour
- Department of Pharmacology, Laboratory of Gene Regulation and
Signal Transduction, University of California San Diego (UCSD), United States
- Department of Cancer Biology, The University of Texas MD Anderson
Cancer Center, United States
| | - Jörg Cammenga
- Medical Faculty, Division of Molecular Medicine and Gene Therapy,
Institution for Laboratory Medicine, Lund University, Sweden
- Medical Faculty, Lund Stem Cell Center, Lund University,
Sweden
| | - Michael Karin
- Department of Pharmacology, Laboratory of Gene Regulation and
Signal Transduction, University of California San Diego (UCSD), United States
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17
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Fitzgerald H, Bonin JL, Sadhu S, Lipscomb M, Biswas N, Decker C, Nabage M, Bossardi R, Marinello M, Mena AH, Gilliard K, Spite M, Adam A, MacNamara KC, Fredman G. The Resolvin D2-GPR18 Axis Enhances Bone Marrow Function and Limits Hepatic Fibrosis in Aging. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.05.522881. [PMID: 36711905 PMCID: PMC9881918 DOI: 10.1101/2023.01.05.522881] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Aging is associated with non-resolving inflammation and tissue dysfunction. Resolvin D2 (RvD2) is a pro-resolving ligand that acts through the G-protein coupled receptor (GPCR) called GRP18. Using an unbiased screen, we report increased Gpr18 expression in macrophages from old mice and in livers from elderly humans that is associated with increased steatosis and fibrosis in middle-aged (MA) and old mice. MA mice that lack GPR18 on myeloid cells had exacerbated steatosis and hepatic fibrosis, which was associated with a decline in Mac2+ macrophages. Treatment of MA mice with RvD2 reduced steatosis and decreased hepatic fibrosis, correlating with increased Mac2+ macrophages, monocyte-derived macrophages and elevated numbers of monocytes in the liver, blood, and bone marrow. RvD2 acted directly upon the bone marrow to increase monocyte-macrophage progenitors. Using a transplantation assay we further demonstrated that bone marrow from old mice facilitated hepatic collagen accumulation in young mice, and transient RvD2 treatment to mice transplanted with bone marrow from old mice prevented hepatic collagen accumulation. Together, our study demonstrates that RvD2-GPR18 signaling controls steatosis and fibrosis and provides a mechanistic-based therapy for promoting liver repair in aging.
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18
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Zhang Y, Xie X, Huang Y, Liu M, Li Q, Luo J, He Y, Yin X, Ma S, Cao W, Chen S, Peng J, Guo J, Zhou W, Luo H, Dong F, Cheng H, Hao S, Hu L, Zhu P, Cheng T. Temporal molecular program of human hematopoietic stem and progenitor cells after birth. Dev Cell 2022; 57:2745-2760.e6. [PMID: 36493772 DOI: 10.1016/j.devcel.2022.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 05/29/2022] [Accepted: 11/16/2022] [Indexed: 12/13/2022]
Abstract
Hematopoietic stem and progenitor cells (HSPCs) give rise to the blood system and maintain hematopoiesis throughout the human lifespan. Here, we report a transcriptional census of human bone-marrow-derived HSPCs from the neonate, infant, child, adult, and aging stages, showing two subpopulations of multipotent progenitors separated by CD52 expression. From birth to the adult stage, stem and multipotent progenitors shared similar transcriptional alterations, and erythroid potential was enhanced after the infant stage. By integrating transcriptome, chromatin accessibility, and functional data, we further showed that aging hematopoietic stem cells (HSCs) exhibited a bias toward megakaryocytic differentiation. Finally, in comparison with the HSCs from the cord blood, neonate bone-marrow-derived HSCs were more quiescent and had higher long-term regeneration capability and durable self-renewal. Taken together, this work provides an integral transcriptome landscape of HSPCs and identifies their dynamics in post-natal steady-state hemopoiesis, thereby helping explore hematopoiesis in development and diseases.
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Affiliation(s)
- Yawen Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China; Department of Hematology, Jiangsu Province Hospital, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210000, China
| | - Xiaowei Xie
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Yaojing Huang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Mengyao Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Qiaochuan Li
- Department of Hematology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Jianming Luo
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory, Nanning 530021, China
| | - Yunyan He
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Guangxi Key Laboratory, Nanning 530021, China
| | - Xiuxiu Yin
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Shihui Ma
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Wenbin Cao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Shulian Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Jun Peng
- Department of Hematology, Qilu Hospital, Shandong University, Jinan 250012, China
| | - Jiaojiao Guo
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Wen Zhou
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha 410078, China
| | - Hongbo Luo
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Fang Dong
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Hui Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Sha Hao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Linping Hu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China.
| | - Ping Zhu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China.
| | - Tao Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China; Center for Stem Cell Medicine, Chinese Academy of Medical Sciences, Tianjin, China; Department of Stem Cell & Regenerative Medicine, Peking Union Medical College, Tianjin, China.
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19
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Testa U, Castelli G, Pelosi E. Clonal Hematopoiesis: Role in Hematologic and Non-Hematologic Malignancies. Mediterr J Hematol Infect Dis 2022; 14:e2022069. [PMID: 36119457 PMCID: PMC9448266 DOI: 10.4084/mjhid.2022.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 08/18/2022] [Indexed: 02/08/2023] Open
Abstract
Hematopoietic stem cells (HSCs) ensure the coordinated and balanced production of all hematopoietic cell types throughout life. Aging is associated with a gradual decline of the self-renewal and regenerative potential of HSCs and with the development of clonal hematopoiesis. Clonal hematopoiesis of indeterminate potential (CHIP) defines the clonal expansion of genetically variant hematopoietic cells bearing one or more gene mutations and/or structural variants (such as copy number alterations). CHIP increases exponentially with age and is associated with cancers, including hematologic neoplasia, cardiovascular and other diseases. The presence of CHIP consistently increases the risk of hematologic malignancy, particularly in individuals who have CHIP in association with peripheral blood cytopenia.
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Affiliation(s)
- Ugo Testa
- Department of Oncology, Istituto Superiore di Sanità, Rome, Italy
| | - Germana Castelli
- Department of Oncology, Istituto Superiore di Sanità, Rome, Italy
| | - Elvira Pelosi
- Department of Oncology, Istituto Superiore di Sanità, Rome, Italy
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20
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Patterson AM, Vemula S, Plett PA, Sampson CH, Chua HL, Fisher A, Wu T, Sellamuthu R, Feng H, Katz BP, DesRosiers CM, Pelus LM, Cox GN, MacVittie TJ, Orschell CM. Age and Sex Divergence in Hematopoietic Radiosensitivity in Aged Mouse Models of the Hematopoietic Acute Radiation Syndrome. Radiat Res 2022; 198:221-242. [PMID: 35834823 PMCID: PMC9512046 DOI: 10.1667/rade-22-00071.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/11/2022] [Indexed: 11/03/2022]
Abstract
The hematopoietic system is highly sensitive to stress from both aging and radiation exposure, and the hematopoietic acute radiation syndrome (H-ARS) should be modeled in the geriatric context separately from young for development of age-appropriate medical countermeasures (MCMs). Here we developed aging murine H-ARS models, defining radiation dose response relationships (DRRs) in 12-month-old middle-aged and 24-month-old geriatric male and female C57BL/6J mice, and characterized diverse factors affecting geriatric MCM testing. Groups of approximately 20 mice were exposed to ∼10 different doses of radiation to establish radiation DRRs for estimation of the LD50/30. Radioresistance increased with age and diverged dramatically between sexes. The LD50/30 in young adult mice averaged 853 cGy and was similar between sexes, but increased in middle age to 1,005 cGy in males and 920 cGy in females, with further sex divergence in geriatric mice to 1,008 cGy in males but 842 cGy in females. Correspondingly, neutrophils, platelets, and functional hematopoietic progenitor cells were all increased with age and rebounded faster after irradiation. These effects were higher in aged males, and neutrophil dysfunction was observed in aged females. Upstream of blood production, hematopoietic stem cell (HSC) markers associated with age and myeloid bias (CD61 and CD150) were higher in geriatric males vs. females, and sex-divergent gene signatures were found in HSCs relating to cholesterol metabolism, interferon signaling, and GIMAP family members. Fluid intake per gram body weight decreased with age in males, and decreased after irradiation in all mice. Geriatric mice of substrain C57BL/6JN sourced from the National Institute on Aging were significantly more radiosensitive than C57BL/6J mice from Jackson Labs aged at our institution, indicating mouse source and substrain should be considered in geriatric radiation studies. This work highlights the importance of sex, vendor, and other considerations in studies relating to hematopoiesis and aging, identifies novel sex-specific functional and molecular changes in aging hematopoietic cells at steady state and after irradiation, and presents well-characterized aging mouse models poised for MCM efficacy testing for treatment of acute radiation effects in the elderly.
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Affiliation(s)
- Andrea M. Patterson
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Sasidhar Vemula
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - P. Artur Plett
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Carol H. Sampson
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Hui Lin Chua
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Alexa Fisher
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Tong Wu
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Rajendran Sellamuthu
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Hailin Feng
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
| | - Barry P. Katz
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana
| | - Colleen M. DesRosiers
- Department of Radiation Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Louis M. Pelus
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
- Department of Microbiology & Immunology, Indiana University School of Medicine, Indianapolis, Indiana
| | | | | | - Christie M. Orschell
- Department of Medicine Indiana University School of Medicine Indianapolis, Indiana
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21
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Lázničková P, Bendíčková K, Kepák T, Frič J. Immunosenescence in Childhood Cancer Survivors and in Elderly: A Comparison and Implication for Risk Stratification. FRONTIERS IN AGING 2022; 2:708788. [PMID: 35822014 PMCID: PMC9261368 DOI: 10.3389/fragi.2021.708788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/05/2021] [Indexed: 12/14/2022]
Abstract
The population of childhood cancer survivors (CCS) has grown rapidly in recent decades. Although cured of their original malignancy, these individuals are at increased risk of serious late effects, including age-associated complications. An impaired immune system has been linked to the emergence of these conditions in the elderly and CCS, likely due to senescent immune cell phenotypes accompanied by low-grade inflammation, which in the elderly is known as "inflammaging." Whether these observations in the elderly and CCS are underpinned by similar mechanisms is unclear. If so, existing knowledge on immunosenescent phenotypes and inflammaging might potentially serve to benefit CCS. We summarize recent findings on the immune changes in CCS and the elderly, and highlight the similarities and identify areas for future research. Improving our understanding of the underlying mechanisms and immunosenescent markers of accelerated immune aging might help us to identify individuals at increased risk of serious health complications.
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Affiliation(s)
- Petra Lázničková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Kamila Bendíčková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Tomáš Kepák
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Pediatric Oncology, University Hospital Brno, Brno, Czech Republic
| | - Jan Frič
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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22
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Liu H, Zhang X, Zhao Z, Zhu H, Li D, Yang Y, Zhao W, Zhang F, Wang Y, Zhu L, Ding Z, Li X. CNST is Characteristic of Leukemia Stem Cells and is Associated With Poor Prognosis in AML. Front Pharmacol 2022; 13:888243. [PMID: 35662693 PMCID: PMC9157791 DOI: 10.3389/fphar.2022.888243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 03/28/2022] [Indexed: 11/30/2022] Open
Abstract
Consortin (CNST) is a protein located on the trans-Golgi network that can target transmembrane proteins to the plasma membrane. Although CNST was discovered more than 10 years ago, there are still not enough studies on its function. During our search for possible new acute myeloid leukemia (AML) markers, we found that CNST was overexpressed in almost all patients with AML. By analyzing profiling data from public databases, we found that CNST expression inversely correlated with overall survival among AML patients. There was a great variation in CNST expression among different subtypes of AML, and the expression was the highest in the t(8,21) subtype, which was probably due to the direct regulation of CNST transcription by RUNX1-RUNX1T1. In addition, we analyzed the expression of CNST in different cells of the hematopoietic system. We found that CNST was associated with the low differentiation degrees of hematopoietic cells and had the highest expression level in leukemia stem cells (LSCs). Finally, we analyzed the CNST-related gene network and found that the genes negatively correlated with CNST are involved in various immune-related pathways, which indicates that CNST is likely related to immune evasion, LSC niche retention, and assembly of stress granules. In conclusion, our study suggests that CNST has the potential to be a diagnostic and prognostic biomarker for AML.
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Affiliation(s)
- Haoyu Liu
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Xu Zhang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Ziyan Zhao
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Hongying Zhu
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Danyang Li
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China.,Rehabilitation Center, Qilu Hospital, Cheelo College of Medicine, Shandong University, Jinan, China
| | - Yang Yang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China.,School of Pharmacy, Binzhou Medical University, Yantai, China
| | - Wenbo Zhao
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Fei Zhang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Yuefeng Wang
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Lina Zhu
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
| | - Zewen Ding
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Xiangzhi Li
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Advanced Medical Research Institute, Shandong University, Qingdao, China
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23
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Cellular and Molecular Mechanisms Involved in Hematopoietic Stem Cell Aging as a Clinical Prospect. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2713483. [PMID: 35401928 PMCID: PMC8993567 DOI: 10.1155/2022/2713483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/28/2022] [Accepted: 03/22/2022] [Indexed: 11/17/2022]
Abstract
There is a hot topic in stem cell research to investigate the process of hematopoietic stem cell (HSC) aging characterized by decreased self-renewal ability, myeloid-biased differentiation, impaired homing, and other abnormalities related to hematopoietic repair function. It is of crucial importance that HSCs preserve self-renewal and differentiation ability to maintain hematopoiesis under homeostatic states over time. Although HSC numbers increase with age in both mice and humans, this cannot compensate for functional defects of aged HSCs. The underlying mechanisms regarding HSC aging have been studied from various perspectives, but the exact molecular events remain unclear. Several cell-intrinsic and cell-extrinsic factors contribute to HSC aging including DNA damage responses, reactive oxygen species (ROS), altered epigenetic profiling, polarity, metabolic alterations, impaired autophagy, Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway, nuclear factor- (NF-) κB pathway, mTOR pathway, transforming growth factor-beta (TGF-β) pathway, and wingless-related integration site (Wnt) pathway. To determine how deficient HSCs develop during aging, we provide an overview of different hallmarks, age-related signaling pathways, and epigenetic modifications in young and aged HSCs. Knowing how such changes occur and progress will help researchers to develop medications and promote the quality of life for the elderly and possibly alleviate age-associated hematopoietic disorders. The present review is aimed at discussing the latest advancements of HSC aging and the role of HSC-intrinsic factors and related events of a bone marrow niche during HSC aging.
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24
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Aging and Clonal Behavior of Hematopoietic Stem Cells. Int J Mol Sci 2022; 23:ijms23041948. [PMID: 35216063 PMCID: PMC8878540 DOI: 10.3390/ijms23041948] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 12/19/2022] Open
Abstract
Hematopoietic stem cells (HSCs) are the only cell population that possesses both a self-renewing capacity and multipotency, and can give rise to all lineages of blood cells throughout an organism’s life. However, the self-renewal capacity of HSCs is not infinite, and cumulative evidence suggests that HSCs alter their function and become less active during organismal aging, leading ultimately to the disruption of hematopoietic homeostasis, such as anemia, perturbed immunity and increased propensity to hematological malignancies. Thus, understanding how HSCs alter their function during aging is a matter of critical importance to prevent or overcome these age-related changes in the blood system. Recent advances in clonal analysis have revealed the functional heterogeneity of murine HSC pools that is established upon development and skewed toward the clonal expansion of functionally poised HSCs during aging. In humans, next-generation sequencing has revealed age-related clonal hematopoiesis that originates from HSC subsets with acquired somatic mutations, and has highlighted it as a significant risk factor for hematological malignancies and cardiovascular diseases. In this review, we summarize the current fate-mapping strategies that are used to track and visualize HSC clonal behavior during development or after stress. We then review the age-related changes in HSCs that can be inherited by daughter cells and act as a cellular memory to form functionally distinct clones. Altogether, we link aging of the hematopoietic system to HSC clonal evolution and discuss how HSC clones with myeloid skewing and low regenerative potential can be expanded during aging.
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25
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Louka AM, Sagris D, Ntaios G. Ιmmunity, Vascular Aging, and Stroke. Curr Med Chem 2022; 29:5510-5521. [PMID: 34979888 DOI: 10.2174/0929867329666220103101700] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 11/22/2022]
Abstract
Stroke is one of the most devastating manifestations of cardiovascular disease. Growing age, arterial hypertension, and atherosclerosis are identified as independent risk factors for stroke, primarily due to structural and functional alterations in the cerebrovascular tree. Recent data from in vitro and clinical studies have suggested that the immune system influences atherosclerosis, promoting vascular stiffness and vascular aging and contributing to ischemic stroke, intracranial haemorrhage and microbleeds, white matter disease, and cognitive decline. Furthermore, aging is related to a chronic low-grade inflammatory state, in which macrophage, neutrophils, natural killer (NK cells), and B and T lymphocytes act as major effectors of the immune-mediated cell responses. Moreover, oxidative stress and vascular inflammation are correlated with endothelial dysfunction, vascular aging, blood-brain barrier disruption, lacunar lesions, and neurodegenerative disorders. This review discusses the pathophysiological roles of fundamental cellular and molecular mechanisms of aging, including the complex interplay between them and innate immunity, as well as vascular dysfunction, arterial stiffness, atherosclerosis, atherothrombosis, systemic inflammation, and blood-brain barrier dysfunction.
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Affiliation(s)
- Anna-Maria Louka
- Department of Internal Medicine, School of Health Sciences, Faculty of Medicine, University of Thessaly, Larissa Greece
| | - Dimitrios Sagris
- Department of Internal Medicine, School of Health Sciences, Faculty of Medicine, University of Thessaly, Larissa Greece
| | - George Ntaios
- Department of Internal Medicine, School of Health Sciences, Faculty of Medicine, University of Thessaly, Larissa Greece
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26
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Serre-Miranda C, Roque S, Barreira-Silva P, Nobrega C, Vieira N, Costa P, Palha JA, Correia-Neves M. Age-related sexual dimorphism on the longitudinal progression of blood immune cells in BALB/cByJ mice. J Gerontol A Biol Sci Med Sci 2021; 77:883-891. [PMID: 34741509 PMCID: PMC9071472 DOI: 10.1093/gerona/glab330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Indexed: 11/29/2022] Open
Abstract
The study of immune system aging is of relevance, considering its myriad of interactions and role in protecting and maintaining body homeostasis. While mouse models have been extensively used to study immune system aging, little is known on how the main immune populations progress over time and what is the impact of sex. To contribute to filling this gap, male and female BALB/cByJ mice were longitudinally evaluated, from 3 to 18 months old, for the main blood populations, assessed by flow cytometry. Using linear mixed-effect models, we observed that the percentages of neutrophils, monocytes, eosinophils, and total natural killer (NK) cells increase with aging, while those of B cells, T cells (including CD4+ and CD8+ subsets), and Ly6C+ NK cells decrease. Males present higher percentages of neutrophils and classical monocytes Ly6Chigh over time, while females present higher percentages of total T cells, both CD4+ and CD8+, eosinophils, and NK cells. Males and females display similar percentages of B cells, even though with opposite accelerated progressions over time. This study revealed that mouse models recapitulate what is observed in humans during aging: an overall proportional decrease in the adaptive and an increase in the innate immune cells. Additionally, it uncovers an age-related sexual dimorphism in the proportion of immune cells in circulation, further strengthening the need to explore the impact of sex when addressing immune system aging using mouse models.
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Affiliation(s)
- Cláudia Serre-Miranda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Susana Roque
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Palmira Barreira-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Claudia Nobrega
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Neide Vieira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Patrício Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Almeida Palha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Margarida Correia-Neves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
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27
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IL-1 Mediates Microbiome-Induced Inflamm-Ageing of Hematopoietic Stem Cells in Mice. Blood 2021; 139:44-58. [PMID: 34525198 DOI: 10.1182/blood.2021011570] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/30/2021] [Indexed: 11/20/2022] Open
Abstract
Ageing is associated with impaired hematopoietic and immune function. This is caused in part by decreased hematopoietic stem cell (HSC) population fitness and an increased myeloid differentiation bias. The reasons for this aging-associated HSC impairment are incompletely understood. We here demonstrate that aged specific pathogen free (SPF) wild-type mice in contrast to young SPF mice produce more IL-1a/b in steady-state bone marrow (BM), with most of IL-1a/b being derived from myeloid BM cells. Further, blood of steady-state aged SPF wild-type mice contains higher levels of microbe associated molecular patterns (MAMPs), specifically TLR4 and TLR8 ligands. Also, BM myeloid cells from aged mice produce more IL-1b in vitro, and aged mice show higher and more durable IL-1a/b responses upon LPS stimulation in vivo. To test if HSC ageing is driven via IL-1a/b, we evaluated HSCs from IL-1 receptor 1 (IL-1R1) knock-out mice. Indeed, aged HSCs from IL-1R1 knock-out mice show significantly mitigated ageing-associated inflammatory signatures. Moreover, HSCs from aged IL-1R1KO and also from germ-free mice maintain unbiased lympho-myeloid hematopoietic differentiation upon transplantation, thus resembling this functionality of young HSCs. Importantly, in vivo antibiotic suppression of microbiota or pharmacologic blockade of IL-1 signaling in aged wild-type mice was similarly sufficient to reverse myeloid biased output of their HSC populations. Collectively, our data defines the microbiome-IL-1/IL-1R1 axis as a key, self-sustaining, but also therapeutically partially reversible driver of HSC inflamm-ageing.
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Belyavsky A, Petinati N, Drize N. Hematopoiesis during Ontogenesis, Adult Life, and Aging. Int J Mol Sci 2021; 22:ijms22179231. [PMID: 34502137 PMCID: PMC8430730 DOI: 10.3390/ijms22179231] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/13/2021] [Accepted: 08/24/2021] [Indexed: 12/17/2022] Open
Abstract
In the bone marrow of vertebrates, two types of stem cells coexist-hematopoietic stem cells (HSCs) and mesenchymal stem cells (MSCs). Hematopoiesis only occurs when these two stem cell types and their descendants interact. The descendants of HSCs supply the body with all the mature blood cells, while MSCs give rise to stromal cells that form a niche for HSCs and regulate the process of hematopoiesis. The studies of hematopoiesis were initially based on morphological observations, later extended by the use of physiological methods, and were subsequently augmented by massive application of sophisticated molecular techniques. The combination of these methods produced a wealth of new data on the organization and functional features of hematopoiesis in the ontogenesis of mammals and humans. This review summarizes the current views on hematopoiesis in mice and humans, discusses the development of blood elements and hematopoiesis in the embryo, and describes how the hematopoietic system works in the adult organism and how it changes during aging.
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Affiliation(s)
- Alexander Belyavsky
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia;
| | | | - Nina Drize
- National Research Center for Hematology, 125167 Moscow, Russia;
- Correspondence:
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Marrow failure and aging: The role of "Inflammaging". Best Pract Res Clin Haematol 2021; 34:101283. [PMID: 34404535 DOI: 10.1016/j.beha.2021.101283] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 07/02/2021] [Indexed: 02/07/2023]
Abstract
Despite aging and the enormous cellular output required of the marrow every day of the lifespan, most aged patients do not suffer significant marrow failure or cytopenias, an attestation to the proliferative capacity of this system. However, as marrow and its hematopoietic stem cells age, a reduction in ability to maintain homeostasis after stress or with exposure to prolonged chronic inflammation, so-called "inflammaging," may contribute to cytopenias, inadequate immune responses, and dysplasia/leukemia. In some instances, these changes may be intrinsic to the stem cell but in others, there may be extrinsic environmental influences. In this review, the role of aging as it relates to stem cell changes, immune function, and anemia are reviewed.
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Desterke C, Bennaceur-Griscelli A, Turhan AG. EGR1 dysregulation defines an inflammatory and leukemic program in cell trajectory of human-aged hematopoietic stem cells (HSC). Stem Cell Res Ther 2021; 12:419. [PMID: 34294125 PMCID: PMC8296523 DOI: 10.1186/s13287-021-02498-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 07/08/2021] [Indexed: 12/24/2022] Open
Abstract
Background During aging, hematopoietic stem cells (HSC) lose progressively both their self-renewal and differentiation potential. The precise molecular mechanisms of this phenomenon are not well established. To uncover the molecular events underlying this event, we have performed a bioinformatics analysis of 650 single-cell transcriptomes. Methods Single-cell transcriptome analyses of expression heterogeneity, cell cycle, and cell trajectory in human cell compartment enriched in hematopoietic stem cell compartment were investigated in the bone marrow according to the age of the donors. Identification of aging-related nodules was identified by weighted correlation network analysis in this primitive compartment. Results The analysis of single-cell transcriptomes allowed to uncover a major upregulation of EGR1 in human-aged lineage−CD34+CD38− cells which present cell cycle dysregulation with reduction of G2/M phase according to less expression of CCND2 during S phase. EGR1 upregulation in aging hematopoietic stem cells was found to be independent of cell cycle phases and gender. EGR1 expression trajectory in aged HSC highlighted a signature enriched in hematopoietic and immune disorders with the best induction of AP-1 complex and quiescence regulators such as EGR1, BTG2, JUNB, and NR41A. Sonic Hedgehog-related TMEM107 transmembrane molecule followed also EGR1 cell trajectory. EGR1-dependent gene weighted network analysis in human HSC-associated IER2 target protein-specific regulators of PP2A activity, IL1B, TNFSF10 ligands, and CD69, SELP membrane molecules in old HSC module with immune and leukemogenic signature. In contrast, for young HSC which were found with different cell cycle phase progression, its specific module highlighted upregulation of HIF1A hypoxic factor, PDE4B immune marker, DRAK2 (STK17B) T cell apoptosis regulator, and MYADM myeloid-associated marker. Conclusion EGR1 was found to be connected to the aging of human HSC and highlighted a specific cell trajectory contributing to the dysregulation of an inflammatory and leukemia-related transcriptional program in aged human HSCs. EGR1 and its program were found to be connected to the aging of human HSC with dissociation of quiescence property and cell cycle phase progression in this primitive hematopoietic compartment. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02498-0.
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Affiliation(s)
| | - Annelise Bennaceur-Griscelli
- INSERM UA9, University Paris-Saclay, 94800, Villejuif, France.,ESTeam Paris Sud, INGESTEM National IPSC Infrastructure, University Paris-Saclay, 94800, Villejuif, France.,Division of Hematology, APHP-Paris Saclay University Hospitals, Le Kremlin Bicêtre 94275, 94800, Villejuif, France.,Faculty of Medicine, University Paris Saclay, 94275, Le Kremlin Bicêtre, France
| | - Ali G Turhan
- INSERM UA9, University Paris-Saclay, 94800, Villejuif, France. .,ESTeam Paris Sud, INGESTEM National IPSC Infrastructure, University Paris-Saclay, 94800, Villejuif, France. .,Division of Hematology, APHP-Paris Saclay University Hospitals, Le Kremlin Bicêtre 94275, 94800, Villejuif, France. .,Faculty of Medicine, University Paris Saclay, 94275, Le Kremlin Bicêtre, France.
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Yang D, de Haan G. Inflammation and Aging of Hematopoietic Stem Cells in Their Niche. Cells 2021; 10:1849. [PMID: 34440618 PMCID: PMC8391820 DOI: 10.3390/cells10081849] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 12/30/2022] Open
Abstract
Hematopoietic stem cells (HSCs) sustain the lifelong production of all blood cell lineages. The functioning of aged HSCs is impaired, including a declined repopulation capacity and myeloid and platelet-restricted differentiation. Both cell-intrinsic and microenvironmental extrinsic factors contribute to HSC aging. Recent studies highlight the emerging role of inflammation in contributing to HSC aging. In this review, we summarize the recent finding of age-associated changes of HSCs and the bone marrow niche in which they lodge, and discuss how inflammation may drive HSC aging.
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Affiliation(s)
- Daozheng Yang
- European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen, University of Groningen, 9713 AV Groningen, The Netherlands;
| | - Gerald de Haan
- European Research Institute for the Biology of Ageing (ERIBA), University Medical Center Groningen, University of Groningen, 9713 AV Groningen, The Netherlands;
- Sanquin Research, Landsteiner Laboratory, Amsterdam UMC, 1006 AD Amsterdam, The Netherlands
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Meza-León B, Gratzinger D, Aguilar-Navarro AG, Juárez-Aguilar FG, Rebel VI, Torlakovic E, Purton LE, Dorantes-Acosta EM, Escobar-Sánchez A, Dick JE, Flores-Figueroa E. Human, mouse, and dog bone marrow show similar mesenchymal stromal cells within a distinctive microenvironment. Exp Hematol 2021; 100:41-51. [PMID: 34228982 DOI: 10.1016/j.exphem.2021.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/22/2021] [Accepted: 06/26/2021] [Indexed: 12/22/2022]
Abstract
Bone marrow stromal cells (BMSCs) are a key part of the hematopoietic niche. Mouse and human BMSCs are recognized by different markers (LepR and NGFR/CD271, respectively). However, there has not been a detailed in situ comparison of both populations within the hematopoietic microenvironment. Moreover, dog BMSCs have not been characterized in situ by any of those markers. We conducted a systematic histopathological comparison of mouse, human, and dog BMSCs within their bone marrow architecture and microenvironment. Human and dog CD271+ BMSCs had a morphology, frequency, and distribution within trabecular bone marrow similar to those of mouse LepR+ BMSCs. However, mouse bone marrow had higher cellularity and megakaryocyte content. In conclusion, highly comparable bone marrow mesenchymal stromal cell distribution among the three species establishes the validity of using mouse and dog as a surrogate experimental model of hematopoietic stem cell-BMSC interactions. However, the distinct differences in adipocyte and megakaryocyte microenvironment content of mouse bone marrow and how they might influence hematopoietic stem cell interactions as compared with humans require further study.
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Affiliation(s)
- Berenice Meza-León
- Unidad de Investigación Médica en Enfermedades Oncológicas. Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, México
| | - Dita Gratzinger
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Alicia G Aguilar-Navarro
- Unidad de Investigación Médica en Enfermedades Oncológicas. Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, México
| | - Fany G Juárez-Aguilar
- Departamento de Patología, Hospital de Especialidades, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, México
| | - Vivienne I Rebel
- Department of Cell Systems & Anatomy, The University of Texas Health Science Center at San Antonio, San Antonio, TX
| | - Emina Torlakovic
- Saskatchewan Health Authority (SHA), Saskatoon, Saskatchewan, Canada; University of Saskatchewan, Saskatchewan, Canada
| | - Louise E Purton
- St. Vincent's Institute of Medical Research, Fitzroy, VIC, Australia; Department of Medicine, University of Melbourne, Parkville, VIC, Australia
| | - Elisa M Dorantes-Acosta
- Biobanco de Investigación en Células Leucémicas, Hospital Infantil de México Federico Gómez, Mexico City, México
| | | | - John E Dick
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada; Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Eugenia Flores-Figueroa
- Unidad de Investigación Médica en Enfermedades Oncológicas. Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico City, México; Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada.
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Caiado F, Pietras EM, Manz MG. Inflammation as a regulator of hematopoietic stem cell function in disease, aging, and clonal selection. J Exp Med 2021; 218:212381. [PMID: 34129016 PMCID: PMC8210622 DOI: 10.1084/jem.20201541] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/19/2021] [Accepted: 05/19/2021] [Indexed: 12/17/2022] Open
Abstract
Inflammation is an evolutionarily selected defense response to infection or tissue damage that involves activation and consumption of immune cells in order to reestablish and maintain organismal integrity. In this process, hematopoietic stem cells (HSCs) are themselves exposed to inflammatory cues and via proliferation and differentiation, replace mature immune cells in a demand-adapted fashion. Here, we review how major sources of systemic inflammation act on and subsequently shape HSC fate and function. We highlight how lifelong inflammatory exposure contributes to HSC inflamm-aging and selection of premalignant HSC clones. Finally, we explore emerging areas of interest and open questions remaining in the field.
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Affiliation(s)
- Francisco Caiado
- Department of Medical Oncology and Hematology, University Hospital Zürich, Zürich, Switzerland.,University of Zürich, Comprehensive Cancer Center Zürich, Zürich, Switzerland
| | - Eric M Pietras
- Division of Hematology, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Markus G Manz
- Department of Medical Oncology and Hematology, University Hospital Zürich, Zürich, Switzerland.,University of Zürich, Comprehensive Cancer Center Zürich, Zürich, Switzerland
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Decline in IGF1 in the bone marrow microenvironment initiates hematopoietic stem cell aging. Cell Stem Cell 2021; 28:1473-1482.e7. [PMID: 33848471 DOI: 10.1016/j.stem.2021.03.017] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/19/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022]
Abstract
Decline in hematopoietic stem cell (HSC) function with age underlies limited health span of our blood and immune systems. In order to preserve health into older age, it is necessary to understand the nature and timing of initiating events that cause HSC aging. By performing a cross-sectional study in mice, we discover that hallmarks of aging in HSCs and hematopoiesis begin to accumulate by middle age and that the bone marrow (BM) microenvironment at middle age induces and is indispensable for hematopoietic aging. Using unbiased approaches, we find that decreased levels of the longevity-associated molecule IGF1 in the local middle-aged BM microenvironment are a factor causing HSC aging. Direct stimulation of middle-aged HSCs with IGF1 rescues molecular and functional hallmarks of aging, including restored mitochondrial activity. Thus, although decline in IGF1 supports longevity, our work indicates that this also compromises HSC function and limits hematopoietic health span.
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Mirazi N, Shahabi Baher I, Izadi Z, Hosseini A. The protective effect of Rubus fruticosus L. on blood composition in cyclophosphamide treated male rats. CLINICAL PHYTOSCIENCE 2021. [DOI: 10.1186/s40816-021-00273-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Some chemotherapy drugs such cyclophosphamide (CP) has destructive effects on hematopoietic cells in the bone marrow tissue. Due to antioxidant and anti-inflammatory features, medicinal herbs have protective effects on the bone marrow tissue. The aim of this experimental study is to examine the protective effects of Rubus fruticosus L. extract (RF) on blood parameters in male rats treated with CP.
Methods
In this experimental study, 35 male Wistar rats (220–250 g) were randomly divided into 5 groups (n = 7): Control (0.5 mL normal saline), CP (15 mg/kg), positive control (RF per se 200 mg/kg), treatment 1 (CP 15 mg/kg + RF 100 mg/kg), and treatment 2 (CP 15 mg/kg + RF 200 mg/kg). All drugs and extracts were given intraperitoneally for 15 consecutive days. At the end of the intervention, all animals were euthanized and their blood samples were collected by cardiac puncture in anti-coagulant tubes for blood parameters evaluation.
Results
The data analysis showed that CP has decreased significantly in RBC, WBC, Platelets number, hemoglobin and hematocrit in rats (p < 0.05). RF could protect hematopoiesis in CP-induced rats (p < 0.05).
Conclusion
The use of RF can protect the blood hematopoietic tissue in bone marrow and prevent CP toxic effects.
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Xie X, Shrimpton J, Doody GM, Conaghan PG, Ponchel F. B-cell capacity for differentiation changes with age. Aging Cell 2021; 20:e13341. [PMID: 33711204 PMCID: PMC8045946 DOI: 10.1111/acel.13341] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/18/2021] [Accepted: 02/21/2021] [Indexed: 01/17/2023] Open
Abstract
Background Age‐related immune deficiencies are thought to be responsible for increased susceptibility to infection in older adults, with alterations in lymphocyte populations becoming more prevalent over time. The loss of humoral immunity in ageing was attributed to the diminished numbers of B cells and the reduced ability to generate immunoglobulin. Aims To compare the intrinsic B‐cell capacity for differentiation into mature plasma cells (PCs), between young and old donors, using in vitro assays, providing either effective T‐cell help or activation via TLR engagement. Methods B cells were isolated from healthy individuals, in younger (30–38 years) and older (60–64 years) donors. An in vitro model system of B‐cell differentiation was used, analysing 5 differentiation markers by flow cytometry, under T‐dependent (TD: CD40/BCR stimulation) or T‐independent (TI: TLR7/BCR activation) conditions. Antibody secretion was measured by ELISA and gene expression using qPCR. Results TI and TD differentiation resulted in effective proliferation of B cells followed by their differentiation into PC. B‐cell‐executed TI differentiation was faster, all differentiation marker and genes being expressed earlier than under TD differentiation (day 6), although generating less viable cells and lower antibody levels (day 13). Age‐related differences in B‐cell capacity for differentiation were minimal in TD differentiation. In contrast, in TI differentiation age significantly affected proliferation, viability, differentiation, antibody secretion and gene expression, older donors being more efficient. Conclusion Altogether, B‐cell differentiation into PC appeared similar between age groups when provided with T‐cell help, in contrast to TI differentiation, where multiple age‐related changes suggest better capacities in older donors. These new findings may help explain the emergence of autoantibodies in ageing.
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Affiliation(s)
- Xuanxiao Xie
- Leeds Institute of Rheumatic and Musculoskeletal Medicine and NIHR Leeds Biomedical Research Centre University of Leeds Leeds UK
| | - Jennifer Shrimpton
- Division of Haematology and Immunology Leeds Institute of Medical Research University of Leeds Leeds UK
| | - Gina M. Doody
- Division of Haematology and Immunology Leeds Institute of Medical Research University of Leeds Leeds UK
| | - Philip G. Conaghan
- Leeds Institute of Rheumatic and Musculoskeletal Medicine and NIHR Leeds Biomedical Research Centre University of Leeds Leeds UK
| | - Frederique Ponchel
- Leeds Institute of Rheumatic and Musculoskeletal Medicine and NIHR Leeds Biomedical Research Centre University of Leeds Leeds UK
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Targońska-Stępniak B, Grzechnik K, Kolarz K, Gągoł D, Majdan M. Systemic Inflammatory Parameters in Patients with Elderly-Onset Rheumatoid Arthritis (EORA) and Young-Onset Rheumatoid Arthritis (YORA)-An Observational Study. J Clin Med 2021; 10:jcm10061204. [PMID: 33799362 PMCID: PMC7999139 DOI: 10.3390/jcm10061204] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/01/2021] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) occurs more often in elderly individuals. Elderly onset RA (EORA) (onset > 60 years) encompasses a specific subset of patients if compared with young onset RA (YORA) (onset at a younger age). There is a need to define reliable, simple markers to properly assess the inflammatory activity of RA. Hematological markers of systemic inflammation (Platelet-To-Lymphocyte (PLR) and Neutrophil-To-Lymphocyte (NLR) ratios) are novel measures of the inflammatory response. The goal of the study was to analyze the course of EORA vs. YORA patients and to assess associations between systemic and clinical disease activity markers, including PLR and NLR, in different subsets of patients. PLR and NLR have not previously been assessed in EORA and YORA. METHODS The study group consisted of 113 consecutive patients (63 EORA and 50 YORA). The following assessments were performed: joint counts, Disease Activity Score (DAS28), complete blood cell counts, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP). RESULTS EORA was characterized by significantly higher disease activity markers (conventional inflammatory and clinical), a lower rate of remission or low disease activity, and less frequent use of biological drugs and glucocorticoids. The NLR and PLR were positively correlated with disease activity markers. The PLR was significantly lower in EORA compared with in YORA. CONCLUSION EORA and YORA patients differed significantly. In EORA, conventional disease activity markers were higher, the PLR was significantly lower.
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Affiliation(s)
- Bożena Targońska-Stępniak
- Department of Rheumatology and Connective Tissue Diseases, Medical University of Lublin, 20-954 Lublin, Poland;
- Correspondence: ; Tel.: +48-817244788
| | - Krzysztof Grzechnik
- Department of Rheumatology and Connective Tissue Diseases, Independent Public Teaching Hospital No 4, 20-954 Lublin, Poland; (K.G.); (K.K.); (D.G.)
| | - Katarzyna Kolarz
- Department of Rheumatology and Connective Tissue Diseases, Independent Public Teaching Hospital No 4, 20-954 Lublin, Poland; (K.G.); (K.K.); (D.G.)
| | - Danuta Gągoł
- Department of Rheumatology and Connective Tissue Diseases, Independent Public Teaching Hospital No 4, 20-954 Lublin, Poland; (K.G.); (K.K.); (D.G.)
| | - Maria Majdan
- Department of Rheumatology and Connective Tissue Diseases, Medical University of Lublin, 20-954 Lublin, Poland;
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Jackson TR, Ling RE, Roy A. The Origin of B-cells: Human Fetal B Cell Development and Implications for the Pathogenesis of Childhood Acute Lymphoblastic Leukemia. Front Immunol 2021; 12:637975. [PMID: 33679795 PMCID: PMC7928347 DOI: 10.3389/fimmu.2021.637975] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 01/28/2021] [Indexed: 12/27/2022] Open
Abstract
Human B-lymphopoiesis is a dynamic life-long process that starts in utero by around six post-conception weeks. A detailed understanding of human fetal B-lymphopoiesis and how it changes in postnatal life is vital for building a complete picture of normal B-lymphoid development through ontogeny, and its relevance in disease. B-cell acute lymphoblastic leukemia (B-ALL) is one of the most common cancers in children, with many of the leukemia-initiating events originating in utero. It is likely that the biology of B-ALL, including leukemia initiation, maintenance and progression depends on the developmental stage and type of B-lymphoid cell in which it originates. This is particularly important for early life leukemias, where specific characteristics of fetal B-cells might be key to determining how the disease behaves, including response to treatment. These cellular, molecular and/or epigenetic features are likely to change with age in a cell intrinsic and/or microenvironment directed manner. Most of our understanding of fetal B-lymphopoiesis has been based on murine data, but many recent studies have focussed on characterizing human fetal B-cell development, including functional and molecular assays at a single cell level. In this mini-review we will give a short overview of the recent advances in the understanding of human fetal B-lymphopoiesis, including its relevance to infant/childhood leukemia, and highlight future questions in the field.
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Affiliation(s)
- Thomas R Jackson
- Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Rebecca E Ling
- Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
| | - Anindita Roy
- Department of Paediatrics and MRC Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom.,National Institute for Health Research (NIHR) Oxford Biomedical Research Centre, Oxford, United Kingdom
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Pomicter AD, Clair PM, Yan D, Heaton WL, Eiring AM, Anderson MB, Richards SM, Gililland J, O'Hare T, Deininger MW. Femoral Heads from Total Hip Arthroplasty as a Source of Adult Hematopoietic Cells. Acta Haematol 2021; 144:458-464. [PMID: 33412552 DOI: 10.1159/000511953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/28/2020] [Indexed: 12/19/2022]
Abstract
Normal human bone marrow cells are critical for studies of hematopoiesis and as controls to assess toxicity. As cells from commercial vendors are expensive, many laboratories resort to cancer-free bone marrow specimens obtained during staging or to umbilical cord blood cells, which may be abnormal or reflect a much younger age group compared to the disease samples under study. We piloted the use of femoral heads as an alternative and inexpensive source of normal bone marrow. Femoral heads were obtained from 21 successive patients undergoing elective hip arthroplasty. Mononuclear cells (MNCs) were purified with Ficoll, and CD3+, CD14+, and CD34+ cells were purified with antibody-coated microbeads. The median yield of MNCs was 8.95 × 107 (range, 1.62 × 105-2.52 × 108), and the median yield of CD34+ cells was 1.40 × 106 (range, 3.60 × 105-9.90 × 106). Results of downstream applications including qRT-PCR, colony-forming assays, and ex vivo proliferation analysis were of high quality and comparable to those obtained with standard bone marrow aspirates. We conclude that femoral heads currently discarded as medical waste are a cost-efficient source of bone marrow cells for research use.
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Affiliation(s)
- Anthony D Pomicter
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Phillip M Clair
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Dongqing Yan
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - William L Heaton
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Anna M Eiring
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Michael B Anderson
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Stephen M Richards
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Jeremy Gililland
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, Utah, USA
| | - Thomas O'Hare
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
- Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, Utah, USA
| | - Michael W Deininger
- Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA,
- Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, Utah, USA,
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40
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Abstract
PURPOSE OF REVIEW Our understanding of the effects of aging on human hematopoiesis has advanced significantly in recent years, yet the full ramifications of these findings are not fully understood. This review summarizes these findings and discusses their implication as they relate to malignant hematopoiesis. RECENT FINDINGS With human aging there is an impaired immune response, loss of hematopoietic stem cell (HSC) function, increase in clonal hematopoiesis, and higher frequency of myeloid malignancies. Although murine models have implicated abnormalities in DNA damage repair, autophagy, metabolism, and epigenetics, studies in primary human specimens are more limited. The development of age-related clonal hematopoiesis and the risk associated with this is one of the major findings in the field of recent years. This is accompanied by changes in bone marrow stem and progenitor composition, changes in the epigenetic program of stem cells and an inflammatory milieu in the bone marrow. The precise consequences of these changes for the development of age-related malignancies are still unclear. SUMMARY Advances in the field have begun to reveal the mechanisms driving human HSC loss of function with age. It will be critical to delineate between normal and malignant aging in order to better prevent age-associated myeloid malignancies.
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Affiliation(s)
- Emmalee R. Adelman
- Dept of Human Genetics, Miller School of Medicine, University of Miami
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami
| | - Maria E. Figueroa
- Dept of Human Genetics, Miller School of Medicine, University of Miami
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami
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Faria AVS, Andrade SS, Peppelenbosch MP, Ferreira-Halder CV, Fuhler GM. Platelets in aging and cancer-"double-edged sword". Cancer Metastasis Rev 2020; 39:1205-1221. [PMID: 32869161 PMCID: PMC7458881 DOI: 10.1007/s10555-020-09926-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023]
Abstract
Platelets control hemostasis and play a key role in inflammation and immunity. However, platelet function may change during aging, and a role for these versatile cells in many age-related pathological processes is emerging. In addition to a well-known role in cardiovascular disease, platelet activity is now thought to contribute to cancer cell metastasis and tumor-associated venous thromboembolism (VTE) development. Worldwide, the great majority of all patients with cardiovascular disease and some with cancer receive anti-platelet therapy to reduce the risk of thrombosis. However, not only do thrombotic diseases remain a leading cause of morbidity and mortality, cancer, especially metastasis, is still the second cause of death worldwide. Understanding how platelets change during aging and how they may contribute to aging-related diseases such as cancer may contribute to steps taken along the road towards a "healthy aging" strategy. Here, we review the changes that occur in platelets during aging, and investigate how these versatile blood components contribute to cancer progression.
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Affiliation(s)
- Alessandra V S Faria
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center Rotterdam, NL-3000 CA, Rotterdam, The Netherlands
- Department of Biochemistry and Tissue Biology, University of Campinas, UNICAMP, Campinas, SP, 13083-862, Brazil
| | | | - Maikel P Peppelenbosch
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center Rotterdam, NL-3000 CA, Rotterdam, The Netherlands
| | - Carmen V Ferreira-Halder
- Department of Biochemistry and Tissue Biology, University of Campinas, UNICAMP, Campinas, SP, 13083-862, Brazil
| | - Gwenny M Fuhler
- Department of Gastroenterology and Hepatology, Erasmus University Medical Center Rotterdam, NL-3000 CA, Rotterdam, The Netherlands.
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Kurosawa S, Iwama A. Aging and leukemic evolution of hematopoietic stem cells under various stress conditions. Inflamm Regen 2020; 40:29. [PMID: 33292805 PMCID: PMC7643313 DOI: 10.1186/s41232-020-00138-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 08/13/2020] [Indexed: 12/18/2022] Open
Abstract
Hematopoietic stem cells (HSCs) have self-renewal capacity and differentiation potential into all lineages of blood cells throughout the lifetime of an organism. The function of HSCs gradually changes during aging. To date, various stress factors influencing HSC aging have been identified. The increased production of reactive oxygen species and DNA damage responses are causatively attributed to HSC aging. The increased apolarity is a prominent feature of aged HSCs, whereas it is less obvious in young HSCs. The bone marrow (BM) microenvironment niche is a crucial factor for HSC aging. Mesenchymal stem cells show skewed differentiation during aging, which leads to decreased bone formation and increased adipogenesis. The accumulation of adipocytes confers negative effects on hematopoiesis. Loss of sympathetic nerve fibers or adrenoreceptor β3 signaling induces premature HSC and niche aging. Epigenetic regulators such as polycomb group proteins and the sirtuin family of proteins act to prevent premature aging. Targeting these factors, several rejuvenation strategies for aged HSCs have been employed in mice. However, we still do not know whether these strategies can be extrapolated to human HSCs. Aging is frequently accompanied by the development of clonal hematopoiesis, which is called age-related clonal hematopoiesis (ARCH) or clonal hematopoiesis of indeterminate potential (CHIP). Most ARCH/CHIP mutations occur in genes encoding epigenetic regulators including DNMT3A, TET2, and ASXL1, which suggests the relevance of epigenetic drift during the aging process. ARCH/CHIP is a strong risk factor for subsequent hematologic cancer. Notably, it also has an impact on the development of non-malignant disorders such as coronary heart disease. Further studies are warranted to decipher the complete picture of molecular crosstalk that regulates HSC aging.
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Affiliation(s)
- Shuhei Kurosawa
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan
| | - Atsushi Iwama
- Division of Stem Cell and Molecular Medicine, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.
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SanMiguel JM, Young K, Trowbridge JJ. Hand in hand: intrinsic and extrinsic drivers of aging and clonal hematopoiesis. Exp Hematol 2020; 91:1-9. [PMID: 32991978 DOI: 10.1016/j.exphem.2020.09.197] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 12/17/2022]
Abstract
Over the past 25 years, the importance of hematopoietic stem cell (HSC) aging in overall hematopoietic and immune system health span has been appreciated. Much work has been done in model organisms to understand the intrinsic dysregulation that occurs in HSCs during aging, with the goal of identifying modifiable mechanisms that represent the proverbial "fountain of youth." Much more recently, the discovery of somatic mutations that are found to provide a selective advantage to HSCs and accumulate in the hematopoietic system during aging, termed clonal hematopoiesis (CH), inspires revisiting many of these previously defined drivers of HSC aging in the context of these somatic mutations. To truly understand these processes and develop a holistic picture of HSC aging, ongoing and future studies must include investigation of the critical changes that occur in the HSC niche or bone marrow microenvironment with aging, as increasing evidence supports that these HSC-extrinsic alterations provide necessary inflammation, signaling pathway activation or repression, and other selective pressures to favor HSC aging-associated phenotypes and CH. Here, we provide our perspectives based on the past 8 years of our own laboratory's investigations into these mechanisms and chart a path for integrative studies that, in our opinion, will provide an ideal opportunity to discover HSC and hematopoietic health span-extending interventions. This path includes examining when and how aging-associated HSC-intrinsic and HSC-extrinsic changes accumulate over time in different individuals and developing new models to track and test relevant HSC-extrinsic changes, complementary to innovative HSC lineage tracing systems that have recently been developed.
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Tolu SS, Wang K, Yan Z, Zhang S, Roberts K, Crouch AS, Sebastian G, Chaitowitz M, Fornari ED, Schwechter EM, Uehlinger J, Manwani D, Minniti CP, Bouhassira EE. Characterization of Hematopoiesis in Sickle Cell Disease by Prospective Isolation of Stem and Progenitor Cells. Cells 2020; 9:cells9102159. [PMID: 32987729 PMCID: PMC7598721 DOI: 10.3390/cells9102159] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 12/24/2022] Open
Abstract
The consequences of sickle cell disease (SCD) include ongoing hematopoietic stress, hemolysis, vascular damage, and effect of chronic therapies, such as blood transfusions and hydroxyurea, on hematopoietic stem and progenitor cell (HSPC) have been poorly characterized. We have quantified the frequencies of nine HSPC populations by flow cytometry in the peripheral blood of pediatric and adult patients, stratified by treatment and control cohorts. We observed broad differences between SCD patients and healthy controls. SCD is associated with 10 to 20-fold increase in CD34dim cells, a two to five-fold increase in CD34bright cells, a depletion in Megakaryocyte-Erythroid Progenitors, and an increase in hematopoietic stem cells, when compared to controls. SCD is also associated with abnormal expression of CD235a as well as high levels CD49f antigen expression. These findings were present to varying degrees in all patients with SCD, including those on chronic therapy and those who were therapy naive. HU treatment appeared to normalize many of these parameters. Chronic stress erythropoiesis and inflammation incited by SCD and HU therapy have long been suspected of causing premature aging of the hematopoietic system, and potentially increasing the risk of hematological malignancies. An important finding of this study was that the observed concentration of CD34bright cells and of all the HSPCs decreased logarithmically with time of treatment with HU. This correlation was independent of age and specific to HU treatment. Although the number of circulating HSPCs is influenced by many parameters, our findings suggest that HU treatment may decrease premature aging and hematologic malignancy risk compared to the other therapeutic modalities in SCD.
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Affiliation(s)
- Seda S. Tolu
- Department of Medicine, Division of Hematology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (S.S.T.); (A.S.C.); (G.S.); (M.C.); (C.P.M.)
| | - Kai Wang
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (K.W.); (Z.Y.); (S.Z.); (K.R.)
| | - Zi Yan
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (K.W.); (Z.Y.); (S.Z.); (K.R.)
| | - Shouping Zhang
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (K.W.); (Z.Y.); (S.Z.); (K.R.)
| | - Karl Roberts
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (K.W.); (Z.Y.); (S.Z.); (K.R.)
| | - Andrew S. Crouch
- Department of Medicine, Division of Hematology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (S.S.T.); (A.S.C.); (G.S.); (M.C.); (C.P.M.)
| | - Gracy Sebastian
- Department of Medicine, Division of Hematology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (S.S.T.); (A.S.C.); (G.S.); (M.C.); (C.P.M.)
| | - Mark Chaitowitz
- Department of Medicine, Division of Hematology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (S.S.T.); (A.S.C.); (G.S.); (M.C.); (C.P.M.)
| | - Eric D. Fornari
- Department of Orthopedic Surgery, Montefiore Medical Center, Bronx, NY 10461, USA; (E.D.F.); (E.M.S.)
| | - Evan M. Schwechter
- Department of Orthopedic Surgery, Montefiore Medical Center, Bronx, NY 10461, USA; (E.D.F.); (E.M.S.)
| | - Joan Uehlinger
- Department of Pathology, Division of Transfusion Medicine, Montefiore Health System, Bronx, NY 10467, USA;
| | - Deepa Manwani
- Pediatric Hematology/Oncology/Marrow and Blood Cell Transplantation, Montefiore Health System, Bronx, NY 10467, USA;
| | - Caterina P. Minniti
- Department of Medicine, Division of Hematology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (S.S.T.); (A.S.C.); (G.S.); (M.C.); (C.P.M.)
| | - Eric E. Bouhassira
- Department of Medicine, Division of Hematology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (S.S.T.); (A.S.C.); (G.S.); (M.C.); (C.P.M.)
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA; (K.W.); (Z.Y.); (S.Z.); (K.R.)
- Correspondence: ; Tel.: +1-718-430-2000
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Waugh KA, Araya P, Pandey A, Jordan KR, Smith KP, Granrath RE, Khanal S, Butcher ET, Estrada BE, Rachubinski AL, McWilliams JA, Minter R, Dimasi T, Colvin KL, Baturin D, Pham AT, Galbraith MD, Bartsch KW, Yeager ME, Porter CC, Sullivan KD, Hsieh EW, Espinosa JM. Mass Cytometry Reveals Global Immune Remodeling with Multi-lineage Hypersensitivity to Type I Interferon in Down Syndrome. Cell Rep 2020; 29:1893-1908.e4. [PMID: 31722205 DOI: 10.1016/j.celrep.2019.10.038] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 08/28/2019] [Accepted: 10/09/2019] [Indexed: 02/06/2023] Open
Abstract
People with Down syndrome (DS; trisomy 21) display a different disease spectrum relative to the general population, including lower rates of solid malignancies and higher incidence of neurological and autoimmune conditions. However, the mechanisms driving this unique clinical profile await elucidation. We completed a deep mapping of the immune system in adults with DS using mass cytometry to evaluate 100 immune cell types, which revealed global immune dysregulation consistent with chronic inflammation, including key changes in the myeloid and lymphoid cell compartments. Furthermore, measurement of interferon-inducible phosphorylation events revealed widespread hypersensitivity to interferon-α in DS, with cell-type-specific variations in downstream intracellular signaling. Mechanistically, this could be explained by overexpression of the interferon receptors encoded on chromosome 21, as demonstrated by increased IFNAR1 surface expression in all immune lineages tested. These results point to interferon-driven immune dysregulation as a likely contributor to the developmental and clinical hallmarks of DS.
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Affiliation(s)
- Katherine A Waugh
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Paula Araya
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ahwan Pandey
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO 80302, USA
| | - Kimberly R Jordan
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Keith P Smith
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ross E Granrath
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Santosh Khanal
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Eric T Butcher
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Belinda Enriquez Estrada
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Angela L Rachubinski
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Jennifer A McWilliams
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Ross Minter
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Tiana Dimasi
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kelley L Colvin
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Dmitry Baturin
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Andrew T Pham
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Matthew D Galbraith
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Kyle W Bartsch
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Michael E Yeager
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Bioengineering, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Christopher C Porter
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Kelly D Sullivan
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Elena W Hsieh
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Joaquin M Espinosa
- Linda Crnic Institute for Down Syndrome, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; Department of Molecular, Cellular and Developmental Biology, University of Colorado Boulder, Boulder, CO 80302, USA.
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46
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Tyrrell DJ, Goldstein DR. Ageing and atherosclerosis: vascular intrinsic and extrinsic factors and potential role of IL-6. Nat Rev Cardiol 2020; 18:58-68. [PMID: 32918047 PMCID: PMC7484613 DOI: 10.1038/s41569-020-0431-7] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/03/2020] [Indexed: 12/21/2022]
Abstract
The number of old people is rising worldwide, and advancing age is a major risk factor for atherosclerotic cardiovascular disease. However, the mechanisms underlying this phenomenon remain unclear. In this Review, we discuss vascular intrinsic and extrinsic mechanisms of how ageing influences the pathology of atherosclerosis. First, we focus on factors that are extrinsic to the vasculature. We discuss how ageing affects the development of myeloid cells leading to the expansion of certain myeloid cell clones and induces changes in myeloid cell functions that promote atherosclerosis via inflammation, including a potential role for IL-6. Next, we describe vascular intrinsic factors by which ageing promotes atherogenesis - in particular, the effects on mitochondrial function. Studies in mice and humans have shown that ageing leads to a decline in vascular mitochondrial function and impaired mitophagy. In mice, ageing is associated with an elevation in the levels of the inflammatory cytokine IL-6 in the aorta, which participates in a positive feedback loop with the impaired vascular mitochondrial function to accelerate atherogenesis. We speculate that vascular and myeloid cell ageing synergize, via IL-6 signalling, to accelerate atherosclerosis. Finally, we propose future avenues of clinical investigation and potential therapeutic approaches to reduce the burden of atherosclerosis in old people.
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Affiliation(s)
- Daniel J Tyrrell
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.,Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Daniel R Goldstein
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA. .,Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI, USA. .,Institute of Gerontology, University of Michigan, Ann Arbor, MI, USA.
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47
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ARID3a expression in human hematopoietic stem cells is associated with distinct gene patterns in aged individuals. IMMUNITY & AGEING 2020; 17:24. [PMID: 32905435 PMCID: PMC7469297 DOI: 10.1186/s12979-020-00198-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/25/2020] [Indexed: 01/28/2023]
Abstract
Background Immunologic aging leads to immune dysfunction, significantly reducing the quality of life of the elderly. Aged-related defects in early hematopoiesis result in reduced lymphoid cell development, functionally defective mature immune cells, and poor protective responses to vaccines and pathogens. Despite considerable progress understanding the underlying causes of decreased immunity in the elderly, the mechanisms by which these occur are still poorly understood. The DNA-binding protein ARID3a is expressed in a subset of human hematopoietic progenitors. Inhibition of ARID3a in bulk human cord blood CD34+ hematopoietic progenitors led to developmental skewing toward myeloid lineage at the expense of lymphoid lineage cells in vitro. Effects of ARID3a expression in adult-derived hematopoietic stem cells (HSCs) have not been analyzed, nor has ARID3a expression been assessed in relationship to age. We hypothesized that decreases in ARID3a could explain some of the defects observed in aging. Results Our data reveal decreased frequencies of ARID3a-expressing peripheral blood HSCs from aged healthy individuals compared with young donor HSCs. Inhibition of ARID3a in young donor-derived HSCs limits B lineage potential, suggesting a role for ARID3a in B lymphopoiesis in bone marrow-derived HSCs. Increasing ARID3a levels of HSCs from aged donors in vitro alters B lineage development and maturation. Finally, single cell analyses of ARID3a-expressing HSCs from young versus aged donors identify a number of differentially expressed genes in aged ARID3A-expressing cells versus young ARID3A-expressing HSCs, as well as between ARID3A-expressing and non-expressing cells in both young and aged donor HSCs. Conclusions These data suggest that ARID3a-expressing HSCs from aged individuals differ at both molecular and functional levels compared to ARID3a-expressing HSCs from young individuals.
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48
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Singh J, Mohtashami M, Anderson G, Zúñiga-Pflücker JC. Thymic Engraftment by in vitro-Derived Progenitor T Cells in Young and Aged Mice. Front Immunol 2020; 11:1850. [PMID: 32973763 PMCID: PMC7462002 DOI: 10.3389/fimmu.2020.01850] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/09/2020] [Indexed: 12/11/2022] Open
Abstract
T cells play a critical role in mediating antigen-specific and long-term immunity against viral and bacterial pathogens, and their development relies on the highly specialized thymic microenvironment. T cell immunodeficiency can be acquired in the form of inborn errors, or can result from perturbations to the thymus due to aging or irradiation/chemotherapy required for cancer treatment. Hematopoietic stem cell transplant (HSCT) from compatible donors is a cornerstone for the treatment of hematological malignancies and immunodeficiency. Although it can restore a functional immune system, profound impairments exist in recovery of the T cell compartment. T cells remain absent or low in number for many months after HSCT, depending on a variety of factors including the age of the recipient. While younger patients have a shorter refractory period, the prolonged T cell recovery observed in older patients can lead to a higher risk of opportunistic infections and increased predisposition to relapse. Thus, strategies for enhancing T cell recovery in aged individuals are needed to counter thymic damage induced by radiation and chemotherapy toxicities, in addition to naturally occurring age-related thymic involution. Preclinical results have shown that robust and rapid long-term thymic reconstitution can be achieved when progenitor T cells, generated in vitro from HSCs, are co-administered during HSCT. Progenitor T cells appear to rely on lymphostromal crosstalk via receptor activator of NF-κB (RANK) and RANK-ligand (RANKL) interactions, creating chemokine-rich niches within the cortex and medulla that likely favor the recruitment of bone marrow-derived thymus seeding progenitors. Here, we employed preclinical mouse models to demonstrate that in vitro-generated progenitor T cells can effectively engraft involuted aged thymuses, which could potentially improve T cell recovery. The utility of progenitor T cells for aged recipients positions them as a promising cellular therapy for immune recovery and intrathymic repair following irradiation and chemotherapy, even in a post-involution thymus.
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Affiliation(s)
| | | | - Graham Anderson
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Juan Carlos Zúñiga-Pflücker
- Department of Immunology, University of Toronto, Toronto, ON, Canada.,Sunnybrook Research Institute, Toronto, ON, Canada
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49
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Crowell PD, Giafaglione JM, Hashimoto T, Goldstein AS. Distinct cell-types in the prostate share an aging signature suggestive of metabolic reprogramming. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2020; 8:140-151. [PMID: 32929410 PMCID: PMC7486537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Age is a significant risk factor for disease of the prostate. However, the mechanisms by which age increases disease risk have not been well described. We previously reported age-related changes within the inflammatory and luminal compartments of the mouse prostate. Old mouse prostates exhibit an expansion of the population of Trop2+ luminal progenitor cells and a reduction in the frequency and functional capacity of Trop2- luminal cells, indicating that different cell-types have distinct responses to aging. Whether distinct cell-types in the prostate share a common signature of aging has not been established. We transcriptionally profiled four distinct cell-types in young adult and old mouse prostates: stromal, basal, Trop2+ luminal progenitor and Trop2- luminal cells. Motif analysis of genes upregulated in old prostate cell-types pointed to transcriptional regulators of inflammatory and hypoxia-related signaling. Glutathione metabolism and the antioxidant response emerged as a common signature of aging across prostatic lineages. Expression of genes implicated in mouse prostate aging, including the antioxidant response gene Hmox1, correlates with age of diagnosis in primary prostate tumors from the TCGA cohort. These findings reveal a common signature shared by distinct cell-types in the old prostate reflective of age-associated metabolic reprogramming.
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Affiliation(s)
- Preston D Crowell
- Molecular Biology Interdepartmental Program, University of CaliforniaLos Angeles, Los Angeles, CA, USA
| | - Jenna M Giafaglione
- Molecular Biology Interdepartmental Program, University of CaliforniaLos Angeles, Los Angeles, CA, USA
| | - Takao Hashimoto
- Department of Molecular, Cell, and Developmental Biology, University of CaliforniaLos Angeles, Los Angeles, CA, USA
| | - Andrew S Goldstein
- Department of Molecular, Cell, and Developmental Biology, University of CaliforniaLos Angeles, Los Angeles, CA, USA
- Department of Urology, David Geffen School of Medicine, University of CaliforniaLos Angeles, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of CaliforniaLos Angeles, Los Angeles, CA, USA
- Jonsson Comprehensive Cancer Center, University of CaliforniaLos Angeles, Los Angeles, CA, USA
- Molecular Biology Institute, University of CaliforniaLos Angeles, Los Angeles, CA, USA
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50
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Valletta S, Thomas A, Meng Y, Ren X, Drissen R, Sengül H, Di Genua C, Nerlov C. Micro-environmental sensing by bone marrow stroma identifies IL-6 and TGFβ1 as regulators of hematopoietic ageing. Nat Commun 2020; 11:4075. [PMID: 32796847 PMCID: PMC7427787 DOI: 10.1038/s41467-020-17942-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 07/27/2020] [Indexed: 12/22/2022] Open
Abstract
Hematopoietic ageing involves declining erythropoiesis and lymphopoiesis, leading to frequent anaemia and decreased adaptive immunity. How intrinsic changes to the hematopoietic stem cells (HSCs), an altered microenvironment and systemic factors contribute to this process is not fully understood. Here we use bone marrow stromal cells as sensors of age-associated changes to the bone marrow microenvironment, and observe up-regulation of IL-6 and TGFβ signalling-induced gene expression in aged bone marrow stroma. Inhibition of TGFβ signalling leads to reversal of age-associated HSC platelet lineage bias, increased generation of lymphoid progenitors and rebalanced HSC lineage output in transplantation assays. In contrast, decreased erythropoiesis is not an intrinsic property of aged HSCs, but associated with decreased levels and functionality of erythroid progenitor populations, defects ameliorated by TGFβ-receptor and IL-6 inhibition, respectively. These results show that both HSC-intrinsic and -extrinsic mechanisms are involved in age-associated hematopoietic decline, and identify therapeutic targets that promote their reversal.
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Affiliation(s)
- Simona Valletta
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Alexander Thomas
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Yiran Meng
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Xiying Ren
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Roy Drissen
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Hilal Sengül
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Cristina Di Genua
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK
| | - Claus Nerlov
- MRC Molecular Hematology Unit, MRC Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DS, UK.
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