1
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Nelson TA, Tommasini S, Fretz JA. Deletion of the transcription factor EBF1 in perivascular stroma disrupts skeletal homeostasis and precipitates premature aging of the marrow microenvironment. Bone 2024:117198. [PMID: 39002837 DOI: 10.1016/j.bone.2024.117198] [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] [Received: 02/13/2024] [Revised: 06/26/2024] [Accepted: 07/07/2024] [Indexed: 07/15/2024]
Abstract
Early B cell factor 1 (EBF1) is a transcription factor expressed by multiple lineages of stromal cells within the bone marrow. While cultures of Ebf1-deficient cells have been demonstrated to have impaired differentiation into either the osteoblast or adipogenic lineage in vitro by several groups, in vivo there has been a nominal consequence of the loss of EBF1 on skeletal development. In this study we used Prx-cre driven deletion of Ebf1 to eliminate EBF1 from the entire mesenchymal lineage of the skeleton and resolve this discrepancy. We report here that EBF1 is expressed primarily in the Mesenchymal Stem and Progenitor Cell (MSPC)-Adipo, MSPC-Osteo, and the Early Mesenchymal Progenitors, and that loss of EBF1 has a plethora of consequences to maintenance of the skeleton throughout adulthood. Stroma from the Prx-cre;Ebf1fl/fl bones had impaired osteogenic differentiation, an age-dependent loss of CFU-F, and elevated senescence accompanying Ebf1-deletion. New bone formation was reduced after 3 months, and resulted in a quiescent bone environment with fewer osteoblasts and an accompanied reduction in osteoclast-mediated remodeling. Consequently, bones were less ductile at a younger age, and deletion of EBF1 dramatically impaired fracture repair. Disruption of EBF1 in perivascular populations also rearranged the vascular network within these bones and disrupted cytokine signaling from key hematopoietic niches resulting in anemia, reductions in B cells, and myeloid skewing of marrow hematopoietic lineages. Mechanistically we observed disrupted BMP signaling within Ebf1-deficient progenitors with reduced SMAD1-phosphorylation, and elevated secretion of the soluble BMP-inhibitor Gremlin from the MSPC-Adipo cells. Ebf1-deficient progenitors also exhibited posttranslational suppression of glucocorticoid receptor expression. Together, these results suggest that EBF1 signaling is required for mesenchymal progenitor mobilization to maintain the adult skeleton, and that the primary action of EBF1 in the early mesenchymal lineage is to promote proliferation, and differentiation of these perivascular cells to sustain a healthy tissue.
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Affiliation(s)
- Tracy A Nelson
- Yale School of Medicine, Department of Orthopaedics and Rehabilitation, New Haven, CT 06510, United States of America
| | - Stephen Tommasini
- Yale School of Medicine, Department of Orthopaedics and Rehabilitation, New Haven, CT 06510, United States of America
| | - Jackie A Fretz
- Yale School of Medicine, Department of Orthopaedics and Rehabilitation, New Haven, CT 06510, United States of America.
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2
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Müller L, Di Benedetto S. Inflammaging, immunosenescence, and cardiovascular aging: insights into long COVID implications. Front Cardiovasc Med 2024; 11:1384996. [PMID: 38988667 PMCID: PMC11233824 DOI: 10.3389/fcvm.2024.1384996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 06/14/2024] [Indexed: 07/12/2024] Open
Abstract
Aging leads to physiological changes, including inflammaging-a chronic low-grade inflammatory state with significant implications for various physiological systems, particularly for cardiovascular health. Concurrently, immunosenescence-the age-related decline in immune function, exacerbates vulnerabilities to cardiovascular pathologies in older individuals. Examining the dynamic connections between immunosenescence, inflammation, and cardiovascular aging, this mini-review aims to disentangle some of these interactions for a better understanding of their complex interplay. In the context of cardiovascular aging, the chronic inflammatory state associated with inflammaging compromises vascular integrity and function, contributing to atherosclerosis, endothelial dysfunction, arterial stiffening, and hypertension. The aging immune system's decline amplifies oxidative stress, fostering an environment conducive to atherosclerotic plaque formation. Noteworthy inflammatory markers, such as the high-sensitivity C-reactive protein, interleukin-6, interleukin-1β, interleukin-18, and tumor necrosis factor-alpha emerge as key players in cardiovascular aging, triggering inflammatory signaling pathways and intensifying inflammaging and immunosenescence. In this review we aim to explore the molecular and cellular mechanisms underlying inflammaging and immunosenescence, shedding light on their nuanced contributions to cardiovascular diseases. Furthermore, we explore the reciprocal relationship between immunosenescence and inflammaging, revealing a self-reinforcing cycle that intensifies cardiovascular risks. This understanding opens avenues for potential therapeutic targets to break this cycle and mitigate cardiovascular dysfunction in aging individuals. Furthermore, we address the implications of Long COVID, introducing an additional layer of complexity to the relationship between aging, immunosenescence, inflammaging, and cardiovascular health. Our review aims to stimulate continued exploration and advance our understanding within the realm of aging and cardiovascular health.
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Affiliation(s)
- Ludmila Müller
- Center for Lifespan Psychology, Max Planck Institute for Human Development, Berlin, Germany
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3
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Frost OG, Ramkilawan P, Rebbaa A, Stolzing A. A systematic review of lifespan studies in rodents using stem cell transplantations. Ageing Res Rev 2024; 97:102295. [PMID: 38588866 DOI: 10.1016/j.arr.2024.102295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024]
Abstract
Organismal aging involves the progressive decline in organ function and increased susceptibility to age-associated diseases. Regardless of its origin, cellular aging is consequently reflected at the level of organ and associated systems dysfunction. Aging of stem cell populations within the body and their decreased ability to self-renew, differentiate, and regenerate damaged tissues, is a key contributor to organismal decline. Based on this, supplementing young stem cells may delay tissue aging, improve frailty and extend health and lifespan. This review investigates studies in rodents using stem cell transplantation from either mice or human donors. The aim is to consolidate available information on the efficacy of stem cell therapies in rodent models and provide insights to guide further research efforts. Out of the 21 studies included in this review, the methodology varied significantly including the lifespan measurement. To enable comparison the median lifespan was calculated using WebPlotDigitizer 4.6 if not provided by the literature. A total of 18 out of 21 studies evidenced significant lifespan extension post stem cell transplant, with 7 studies demonstrating benefits in reduced frailty and other aging complications.
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Affiliation(s)
- Oliver G Frost
- Centre for Biological Engineering, School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, UK; SENS Research Foundation, Mountain View, CA 94041, USA
| | | | | | - Alexandra Stolzing
- Centre for Biological Engineering, School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, UK.
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4
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Chiappetta S, Bottino V. Obesity-associated cancer prevention. THE LANCET. HEALTHY LONGEVITY 2023; 4:e520-e521. [PMID: 37716361 DOI: 10.1016/s2666-7568(23)00176-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 09/18/2023] Open
Affiliation(s)
- Sonja Chiappetta
- Bariatric and Metabolic Surgery Unit, Department of General Surgery, Ospedale Evangelico Betania, Naples 80147, Italy.
| | - Vincenzo Bottino
- Department of General Surgery, Ospedale Evangelico Betania, Naples, Italy
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5
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Shang D, Li Z, Tan X, Liu H, Tu Z. Inhibitory effects and molecular mechanisms of ginsenoside Rg1 on the senescence of hematopoietic stem cells. Fundam Clin Pharmacol 2022; 37:509-517. [PMID: 36582074 DOI: 10.1111/fcp.12863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/09/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022]
Abstract
Hematopoietic stem cells (HSCs) produce all blood cell lineages and maintain life-long hematopoiesis. However, the self-renewal ability and differentiation capacity of HSCs reduces with age. The senescence of HSCs can lead to the imbalance of hematopoietic homeostasis and immune disorder and induce a variety of age-related diseases. Recent studies have shown that therapeutic interventions targeting the senescence of HSCs may prevent disease progression. Ginsenoside Rg1 (Rg1), extracted from roots or stems of ginseng, has beneficial antiaging activities. It has been reported that Rg1 can inhibit the senescence of HSCs. Here, we reviewed recent advances of Rg1 in inhibiting the senescence of HSCs and discussed related molecular mechanisms. Bioinformatics and network databases have been widely applied to drug discoveries. Here, we predicted potential antiaging targets of Rg1 explored by bioinformatic methods, which may help discover new targets of Rg1 and provide novel strategies for delaying the aging process of HSCs.
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Affiliation(s)
- Dongsheng Shang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zhihuan Li
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiaoli Tan
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hanqing Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zhigang Tu
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
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6
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Grigoryan A, Pospiech J, Krämer S, Lipka D, Liehr T, Geiger H, Kimura H, Mulaw MA, Florian MC. Attrition of X Chromosome Inactivation in Aged Hematopoietic Stem Cells. Stem Cell Reports 2021; 16:708-716. [PMID: 33798450 PMCID: PMC8072063 DOI: 10.1016/j.stemcr.2021.03.007] [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: 06/25/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 01/03/2023] Open
Abstract
During X chromosome inactivation (XCI), the inactive X chromosome (Xi) is recruited to the nuclear lamina at the nuclear periphery. Beside X chromosome reactivation resulting in a highly penetrant aging-like hematopoietic malignancy, little is known about XCI in aged hematopoietic stem cells (HSCs). Here, we demonstrate that LaminA/C defines a distinct repressive nuclear compartment for XCI in young HSCs, and its reduction in aged HSCs correlates with an impairment in the overall control of XCI. Integrated omics analyses reveal higher variation in gene expression, global hypomethylation, and significantly increased chromatin accessibility on the X chromosome (Chr X) in aged HSCs. In summary, our data support the role of LaminA/C in the establishment of a special repressive compartment for XCI in HSCs, which is impaired upon aging.
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Affiliation(s)
- Ani Grigoryan
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081 Ulm, Germany
| | - Johannes Pospiech
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081 Ulm, Germany
| | - Stephen Krämer
- Section Translational Cancer Epigenomics, Division of Translational Medical Oncology, German Cancer Research Center (DKFZ) & National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany; Bioinformatics and Omics Data Analysis, German Cancer Research Center (DKFZ), Heidelberg, Germany; Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany; Biomedical Informatics, Data Mining and Data Analytics, Faculty of Applied Computer Science and Medical Faculty, University of Augsburg, Augsburg, Germany
| | - Daniel Lipka
- Section Translational Cancer Epigenomics, Division of Translational Medical Oncology, German Cancer Research Center (DKFZ) & National Center for Tumor Diseases (NCT) Heidelberg, Heidelberg, Germany
| | - Thomas Liehr
- Jena University Hospital, Friedrich Schiller University, Institute of Human Genetics, Am Klinikum 1, 07747 Jena, Germany
| | - Hartmut Geiger
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081 Ulm, Germany
| | - Hiroshi Kimura
- Cell Biology Center, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Medhanie A Mulaw
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081 Ulm, Germany; Department of Internal Medicine I, University Hospital Ulm, Ulm, Germany.
| | - Maria Carolina Florian
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Albert-Einstein-Allee 11c, 89081 Ulm, Germany; Stem Cell Aging Group, Regenerative Medicine Program, Bellvitge Institute for Biomedical Research (IDIBELL) and Program for advancing the Clinical Translation of Regenerative Medicine of Catalonia, P-CMR[C], Av. Gran Via 199-203, 08908, L'Hospitalet de Llobregat, Barcelona, Spain; Center for Networked Biomedical Research on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.
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7
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Shinde P, Kuhikar R, Kulkarni R, Khan N, Limaye L, Kale V. Curcumin restores the engraftment capacity of aged hematopoietic stem cells and also reduces PD-1 expression on cytotoxic T cells. J Tissue Eng Regen Med 2021; 15:388-400. [PMID: 33590722 DOI: 10.1002/term.3180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/03/2021] [Indexed: 01/13/2023]
Abstract
Aging affects the functionality of hematopoietic stem cells (HSCs), and therefore, aged individuals are not preferred as donors in HSC transplantation. Such elimination leads to the restriction of donor cohort. Several efforts are being done to rejuvenate aged HSCs. Here, we show that treatment of aged mice with curcumin rejuvenates their HSCs by restoring the expression of autophagy-inducing messenger RNAs in them, and improves their engraftment capacity. Importantly, we show that curcumin is effective in rejuvenation of HSCs when administered via both, intraperitoneal as well as oral routes. Aging also affects the immune system. While elderly individuals are not immuno-deficient, they do not respond optimally to immunizations, and hence, a strategy needs to be developed to make them immunologically responsive. Programmed cell death 1 (PD-1), one of the inhibitory coreceptors, plays an important role in the regulation of autoimmunity, infectious immunity, and cancer immunity. Its expression on T cells is indicative of their exhaustion. Here, we show that curcumin reduces the frequency of PD1+ cytotoxic T cells in the spleens of aged mice. Curcumin has a proven safety profile, and hence, can be used to treat aged donors to boost the functionality of their HSCs and also to improve the immunological profile of aged individuals. These data could have implications in various other regenerative medicine protocols as well.
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Affiliation(s)
- Prajakta Shinde
- Department of Stem Cell Biology, National Centre for Cell Science, Pune, 411007, India
| | - Rutuja Kuhikar
- Department of Stem Cell Biology, National Centre for Cell Science, Pune, 411007, India
| | - Rohan Kulkarni
- Department of Stem Cell Biology, National Centre for Cell Science, Pune, 411007, India
| | - Nikhat Khan
- Department of Stem Cell Biology, National Centre for Cell Science, Pune, 411007, India
| | - Lalita Limaye
- Department of Stem Cell Biology, National Centre for Cell Science, Pune, 411007, India
| | - Vaijayanti Kale
- Department of Stem Cell Biology, National Centre for Cell Science, Pune, 411007, India
- Symbiosis Centre for Stem Cell Research, Symbiosis School of Biological Sciences, Symbiosis International University, Pune, 412115, India
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8
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Wu TY, Kung CC, Kao TY, Sun WH. Innovative Mind-Body Intervention Day Easy Exercise Increases Peripheral Blood CD34 + Cells in Adults. Cell Transplant 2020; 29:963689720952352. [PMID: 32841054 PMCID: PMC7784511 DOI: 10.1177/0963689720952352] [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] [Indexed: 11/17/2022] Open
Abstract
Mind-body interventions (MBIs) have many health benefits, such as reducing stress, modulating blood pressure, and improving sleep and life quality. The long-term practice of Tai chi, an MBI, also increases the number of CD34+ cells, which are surface markers of hematopoietic stem cells, so prolonged Tai chi practice may have antiaging effects. We developed the day easy exercise (DEE), an innovative MBI, that is easy to learn and requires only a small exercise area and a short practice time. The aim of this study was to explore whether DEE, like Tai chi, has antiaging effects after short-term practice. Total 44 individuals (25 to 62 years old) with or without 3-month DEE practice were divided into young- and middle-aged groups (≤30 and >30 years old) and peripheral blood was collected at 0, 1, 2, and 3 months for analysis of CD34+ cells. The number of CD34+ cells in peripheral blood remained unchanged in control young- and middle-aged groups. After DEE, the number of CD34+ cells in peripheral blood was increased over time in both young- and middle-aged groups. For young-aged adults, the cell number was markedly increased by threefold at 3 months after DEE, and for middle-aged adults, the increase was significant from the first month. DEE practice indeed increased the number of CD34+ cells in peripheral blood and the increase was more significant for older people in a shorter time. This is the first study to provide evidence that the DEE may have antiaging effects and could be beneficial for older people.
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Affiliation(s)
- Ting-Yi Wu
- Department of Life Sciences, National Central University, Zhongli, Taoyuan City
| | - Chia-Chi Kung
- Department of Life Sciences, National Central University, Zhongli, Taoyuan City.,Department of Anesthesiology, Fu Jen Catholic University Hospital, New Taipei
| | - Ting-Yu Kao
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu
| | - Wei-Hsin Sun
- Department of Life Sciences, National Central University, Zhongli, Taoyuan City.,Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei
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9
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Szade K, Zukowska M, Szade A, Nowak W, Skulimowska I, Ciesla M, Bukowska‐Strakova K, Gulati GS, Kachamakova‐Trojanowska N, Kusienicka A, Einwallner E, Kijowski J, Czauderna S, Esterbauer H, Benes V, L Weissman I, Dulak J, Jozkowicz A. Heme oxygenase-1 deficiency triggers exhaustion of hematopoietic stem cells. EMBO Rep 2020; 21:e47895. [PMID: 31885181 PMCID: PMC7001511 DOI: 10.15252/embr.201947895] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 11/14/2019] [Accepted: 11/22/2019] [Indexed: 01/01/2023] Open
Abstract
While intrinsic changes in aging hematopoietic stem cells (HSCs) are well characterized, it remains unclear how extrinsic factors affect HSC aging. Here, we demonstrate that cells in the niche-endothelial cells (ECs) and CXCL12-abundant reticular cells (CARs)-highly express the heme-degrading enzyme, heme oxygenase 1 (HO-1), but then decrease its expression with age. HO-1-deficient animals (HO-1-/- ) have altered numbers of ECs and CARs that produce less hematopoietic factors. HSCs co-cultured in vitro with HO-1-/- mesenchymal stromal cells expand, but have altered kinetic of growth and differentiation of derived colonies. HSCs from young HO-1-/- animals have reduced quiescence and regenerative potential. Young HO-1-/- HSCs exhibit features of premature exhaustion on the transcriptional and functional level. HO-1+/+ HSCs transplanted into HO-1-/- recipients exhaust their regenerative potential early and do not reconstitute secondary recipients. In turn, transplantation of HO-1-/- HSCs to the HO-1+/+ recipients recovers the regenerative potential of HO-1-/- HSCs and reverses their transcriptional alterations. Thus, HSC-extrinsic activity of HO-1 prevents HSCs from premature exhaustion and may restore the function of aged HSCs.
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Affiliation(s)
- Krzysztof Szade
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
- Institute for Stem Cell Biology and Regenerative MedicineStanford UniversityStanfordCAUSA
| | - Monika Zukowska
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Agata Szade
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Witold Nowak
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Izabella Skulimowska
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Maciej Ciesla
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Karolina Bukowska‐Strakova
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
- Department of Clinical ImmunologyInstitute of PediatricsJagiellonian University Medical CollegeKrakowPoland
| | - Gunsagar Singh Gulati
- Institute for Stem Cell Biology and Regenerative MedicineStanford UniversityStanfordCAUSA
| | - Neli Kachamakova‐Trojanowska
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
- Malopolska Centre of BiotechnologyJagiellonian UniversityKrakowPoland
| | - Anna Kusienicka
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Elisa Einwallner
- Department of Laboratory MedicineCenter of Translational ResearchMedical University of ViennaViennaAustria
| | - Jacek Kijowski
- Department of TransplantationInstitute of PediatricsJagiellonian University Medical CollegeKrakowPoland
| | - Szymon Czauderna
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
| | - Harald Esterbauer
- Department of Laboratory MedicineCenter of Translational ResearchMedical University of ViennaViennaAustria
| | | | - Irving L Weissman
- Institute for Stem Cell Biology and Regenerative MedicineStanford UniversityStanfordCAUSA
| | - Jozef Dulak
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
- Malopolska Centre of BiotechnologyJagiellonian UniversityKrakowPoland
| | - Alicja Jozkowicz
- Department of Medical BiotechnologyFaculty of Biochemistry, Biophysics and BiotechnologyJagiellonian UniversityKrakowPoland
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10
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Acute Myeloid Leukemia: Aging and Epigenetics. Cancers (Basel) 2019; 12:cancers12010103. [PMID: 31906064 PMCID: PMC7017261 DOI: 10.3390/cancers12010103] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 12/15/2022] Open
Abstract
Acute myeloid leukemia (AML) is an aggressive hematological disorder mainly affecting people of older age. AML initiation is primarily attributed to mutations in crucial cellular regulators such as epigenetic factors, transcription factors, and signaling genes. AML’s aggressiveness and responsiveness to treatment depends on the specific cell type where leukemia first arose. Aged hematopoietic cells are often genetically and/or epigenetically altered and, therefore, present with a completely different cellular context for AML development compared to young cells. In this review, we summarize key aspects of AML development, and we focus, in particular, on the contribution of cellular aging to leukemogenesis and on current treatment options for elderly AML patients. Hematological disorders and leukemia grow exponentially with age. So far, with conventional induction therapy, many elderly patients experience a very poor overall survival rate requiring substantial social and medical costs during the relatively few remaining months of life. The global population’s age is increasing rapidly without an acceptable equal growth in therapeutic management of AML in the elderly; this is in sharp contrast to the increase in successful therapies for leukemia in younger patients. Therefore, a focus on the understanding of the biology of aging in the hematopoietic system, the development of appropriate research models, and new therapeutic approaches are urged.
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11
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Zuo L, Prather ER, Stetskiv M, Garrison DE, Meade JR, Peace TI, Zhou T. Inflammaging and Oxidative Stress in Human Diseases: From Molecular Mechanisms to Novel Treatments. Int J Mol Sci 2019; 20:E4472. [PMID: 31510091 PMCID: PMC6769561 DOI: 10.3390/ijms20184472] [Citation(s) in RCA: 239] [Impact Index Per Article: 47.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/04/2019] [Indexed: 02/06/2023] Open
Abstract
It has been proposed that a chronic state of inflammation correlated with aging known as inflammaging, is implicated in multiple disease states commonly observed in the elderly population. Inflammaging is associated with over-abundance of reactive oxygen species in the cell, which can lead to oxidation and damage of cellular components, increased inflammation, and activation of cell death pathways. This review focuses on inflammaging and its contribution to various age-related diseases such as cardiovascular disease, cancer, neurodegenerative diseases, chronic obstructive pulmonary disease, diabetes, and rheumatoid arthritis. Recently published mechanistic details of the roles of reactive oxygen species in inflammaging and various diseases will also be discussed. Advancements in potential treatments to ameliorate inflammaging, oxidative stress, and consequently, reduce the morbidity of multiple disease states will be explored.
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Affiliation(s)
- Li Zuo
- College of Arts and Sciences, University of Maine Presque Isle Campus, Presque Isle, ME 04769, USA.
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA.
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA.
| | - Evan R Prather
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Mykola Stetskiv
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Davis E Garrison
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - James R Meade
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Timotheus I Peace
- College of Arts and Sciences, University of Maine Presque Isle Campus, Presque Isle, ME 04769, USA
| | - Tingyang Zhou
- Radiologic Sciences and Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
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12
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Pioli PD, Casero D, Montecino-Rodriguez E, Morrison SL, Dorshkind K. Plasma Cells Are Obligate Effectors of Enhanced Myelopoiesis in Aging Bone Marrow. Immunity 2019; 51:351-366.e6. [PMID: 31303400 DOI: 10.1016/j.immuni.2019.06.006] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 04/10/2019] [Accepted: 06/12/2019] [Indexed: 12/25/2022]
Abstract
Aging results in increased myelopoiesis, which is linked to the increased incidence of myeloid leukemias and production of myeloid-derived suppressor cells. Here, we examined the contribution of plasma cells (PCs) to age-related increases in myelopoiesis, as PCs exhibit immune regulatory function and sequester in bone marrow (BM). PC number was increased in old BM, and they exhibited high expression of genes encoding inflammatory cytokines and pathogen sensors. Antibody-mediated depletion of PCs from old mice reduced the number of myeloid-biased hematopoietic stem cells and mature myeloid cells to levels in young animals, but lymphopoiesis was not rejuvenated, indicating that redundant mechanisms inhibit that process. PCs also regulated the production of inflammatory factors from BM stromal cells, and disruption of the PC-stromal cell circuitry with inhibitors of the cytokines IL-1 and TNF-α attenuated myelopoiesis in old mice. Thus, the age-related increase in myelopoiesis is driven by an inflammatory network orchestrated by PCs.
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Affiliation(s)
- Peter D Pioli
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - David Casero
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | | | - Sherie L Morrison
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - Kenneth Dorshkind
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA.
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13
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Scala S, Aiuti A. In vivo dynamics of human hematopoietic stem cells: novel concepts and future directions. Blood Adv 2019; 3:1916-1924. [PMID: 31239246 PMCID: PMC6595260 DOI: 10.1182/bloodadvances.2019000039] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/14/2019] [Indexed: 02/06/2023] Open
Abstract
Unveiling the mechanisms and the cellular dynamics at the basis of human hematopoietic homeostasis has been a main focus for the scientific community since the discovery of a pool of multipotent hematopoietic stem cells (HSCs) capable of sustaining the hematopoietic output throughout life and after transplantation. Recently, new works shed light on the (1) differentiation paths, (2) size and replication rate of human HSC population at steady state, and (3) role of the distinct subpopulations comprising the hematopoietic stem and progenitor cell reservoir after transplantation. These papers exploited cutting-edge technologies, including vector integration site clonal tracking, spontaneous mutations, and deep transcriptome profiling. Here we discuss the latest updates in human hematopoietic system biology and in vivo dynamics, highlighting novel concepts and common findings deriving from different approaches and the future directions of these studies. Taken together, this information contributed to partially resolving the complexity of the in vivo HSC behavior and has major implications for HSC transplantation and gene therapy as well as for the development of future therapies.
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Affiliation(s)
- Serena Scala
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget) and
| | - Alessandro Aiuti
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget) and
- Pediatric Immunohematology and Stem Cell Programme, IRCCS San Raffaele Scientific Institute, Milan, Italy; and
- Medical School, Università Vita-Salute San Raffaele, Milan, Italy
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14
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Florian MC, Klose M, Sacma M, Jablanovic J, Knudson L, Nattamai KJ, Marka G, Vollmer A, Soller K, Sakk V, Cabezas-Wallscheid N, Zheng Y, Mulaw MA, Glauche I, Geiger H. Aging alters the epigenetic asymmetry of HSC division. PLoS Biol 2018; 16:e2003389. [PMID: 30235201 PMCID: PMC6168157 DOI: 10.1371/journal.pbio.2003389] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 10/02/2018] [Accepted: 08/23/2018] [Indexed: 01/01/2023] Open
Abstract
Hematopoietic stem cells (HSCs) balance self-renewal and differentiation to maintain homeostasis. With aging, the frequency of polar HSCs decreases. Cell polarity in HSCs is controlled by the activity of the small RhoGTPase cell division control protein 42 (Cdc42). Here we demonstrate—using a comprehensive set of paired daughter cell analyses that include single-cell 3D confocal imaging, single-cell transplants, single-cell RNA-seq, and single-cell transposase-accessible chromatin sequencing (ATAC-seq)—that the outcome of HSC divisions is strongly linked to the polarity status before mitosis, which is in turn determined by the level of the activity Cdc42 in stem cells. Aged apolar HSCs undergo preferentially self-renewing symmetric divisions, resulting in daughter stem cells with reduced regenerative capacity and lymphoid potential, while young polar HSCs undergo preferentially asymmetric divisions. Mathematical modeling in combination with experimental data implies a mechanistic role of the asymmetric sorting of Cdc42 in determining the potential of daughter cells via epigenetic mechanisms. Therefore, molecules that control HSC polarity might serve as modulators of the mode of stem cell division regulating the potential of daughter cells. Stem cells are unique cells that can differentiate to produce more stem cells or other types of cells and can divide both symmetrically (to produce daughter cells with the same fate) and asymmetrically (to produce one daughter cell that retains stem cell potential and one that differentiates). The mechanisms that control the outcome of stem cell divisions have been the focus of many studies; however, they remain mainly unknown. Here, we have analyzed these mechanisms in murine hematopoietic stem cells (HSCs) by directly comparing the epigenetic signature, the transcriptome, and the function of the two daughter cells stemming from the first division of either a young or an aged HSC. We observe that, while young HSCs divide mainly asymmetrically, aged HSCs divide primarily symmetrically. We find that the mode of division is tightly linked to stem cell polarity and is regulated by the activity level of the small RhoGTPase cell division control protein 42 (Cdc42). In addition, we show that the potential of daughter cells is further linked to the amount of the epigenetic mark H4K16ac and also to the amount of open chromatin allocated to a daughter cell, but it is not linked to its transcriptome. In summary, our study suggests that HSC polarity linked to Cdc42 activity drives the mode of division, while epigenetic mechanisms determine the functional outcome of the stem cell division.
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Affiliation(s)
- M. Carolina Florian
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
- * E-mail: (MCF); (HG)
| | - Markus Klose
- Institute for Medical Informatics and Biometry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Mehmet Sacma
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Jelena Jablanovic
- Max Planck Institute (MPI) of Immunobiology and Epigenetics, Freiburg, Germany
| | - Luke Knudson
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Kalpana J. Nattamai
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Gina Marka
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Angelika Vollmer
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Karin Soller
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
| | - Vadim Sakk
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
| | | | - Yi Zheng
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Medhanie A. Mulaw
- Institute of Experimental Cancer Research, Medical Faculty, University of Ulm, Ulm, Germany
| | - Ingmar Glauche
- Institute for Medical Informatics and Biometry, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Hartmut Geiger
- Institute of Molecular Medicine and Stem Cell Aging, University of Ulm, Ulm, Germany
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, United States of America
- * E-mail: (MCF); (HG)
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15
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Rožman P. The potential of non-myeloablative heterochronous autologous hematopoietic stem cell transplantation for extending a healthy life span. GeroScience 2018; 40:221-242. [PMID: 29948868 PMCID: PMC6060192 DOI: 10.1007/s11357-018-0027-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/03/2018] [Indexed: 12/11/2022] Open
Abstract
Aging is a complex multifactorial process, a prominent component being the senescence of the immune system. Consequently, immune-related diseases develop, including atherosclerosis, cancer, and life-threatening infections, which impact on health and longevity. Rejuvenating the aged immune system could mitigate these diseases, thereby contributing to longevity and health. Currently, an appealing option for rejuvenating the immune system is heterochronous autologous hematopoietic stem cell transplantation (haHSCT), where healthy autologous bone marrow/peripheral blood stem cells are collected during the youth of an individual, cryopreserved, and re-infused when he or she has reached an older age. After infusion, young hematopoietic stem cells can reconstitute the compromised immune system and improve immune function. Several studies using animal models have achieved substantial extension of the life span of animals treated with haHSCT. Therefore, haHSCT could be regarded as a potential procedure for preventing age-related immune defects and extending healthy longevity. In this review, the pros, cons, and future feasibility of this approach are discussed.
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Affiliation(s)
- Primož Rožman
- Blood Transfusion Centre of Slovenia, Šlajmerjeva 6, 1000, Ljubljana, Slovenia.
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16
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Adrenergic nerve degeneration in bone marrow drives aging of the hematopoietic stem cell niche. Nat Med 2018; 24:782-791. [PMID: 29736022 PMCID: PMC6095812 DOI: 10.1038/s41591-018-0030-x] [Citation(s) in RCA: 226] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 03/12/2018] [Indexed: 12/22/2022]
Abstract
Aging of hematopoietic stem cells (HSCs) is associated with a decline in their regenerative capacity and multi-lineage differentiation potential, contributing to the development of blood disorders. The bone marrow microenvironment has recently been suggested to influence HSC aging, but the underlying mechanisms remain largely unknown. Here, we show that HSC aging critically depends on bone marrow innervation by the sympathetic nervous system (SNS), as loss of SNS nerves or adrenoreceptor β3 (ADRβ3) signaling in the bone marrow microenvironment of young mice led to premature HSC aging, as evidenced by appearance of HSC phenotypes reminiscent of physiological aging. Strikingly, supplementation of a sympathomimetic acting selectively on ADRβ3 to old mice significantly rejuvenated the in vivo function of aged HSCs, suggesting that the preservation or restitution of bone marrow SNS innervation during aging may hold the potential for new HSC rejuvenation strategies.
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17
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Kulkarni R, Bajaj M, Ghode S, Jalnapurkar S, Limaye L, Kale VP. Intercellular Transfer of Microvesicles from Young Mesenchymal Stromal Cells Rejuvenates Aged Murine Hematopoietic Stem Cells. Stem Cells 2017; 36:420-433. [PMID: 29230885 DOI: 10.1002/stem.2756] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 11/02/2017] [Accepted: 11/15/2017] [Indexed: 12/16/2022]
Abstract
Donor age is one of the major concerns in bone marrow transplantation, as the aged hematopoietic stem cells (HSCs) fail to engraft efficiently. Here, using murine system, we show that a brief interaction of aged HSCs with young mesenchymal stromal cells (MSCs) rejuvenates them and restores their functionality via inter-cellular transfer of microvesicles (MVs) containing autophagy-related mRNAs. Importantly, we show that MSCs gain activated AKT signaling as a function of aging. Activated AKT reduces the levels of autophagy-related mRNAs in their MVs, and partitions miR-17 and miR-34a into their exosomes, which upon transfer into HSCs downregulate their autophagy-inducing mRNAs. Our data identify previously unknown mechanisms operative in the niche-mediated aging of HSCs. Inhibition of AKT in aged MSCs increases the levels of autophagy-related mRNAs in their MVs and reduces the levels of miR-17 and miR-34a in their exosomes. Interestingly, transplantation experiments showed that the rejuvenating power of these "rescued" MVs is even better than that of the young MVs. We demonstrate that such ex vivo rejuvenation of aged HSCs could expand donor cohort and improve transplantation efficacy. Stem Cells 2018;36:420-433.
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Affiliation(s)
- Rohan Kulkarni
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra, India
| | - Manmohan Bajaj
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra, India
| | - Suprita Ghode
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra, India
| | - Sapana Jalnapurkar
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra, India
| | - Lalita Limaye
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra, India
| | - Vaijayanti P Kale
- Stem Cell Lab, National Centre for Cell Science, Ganeshkhind, Pune, Maharashtra, India
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18
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Chung SS, Park CY. Aging, hematopoiesis, and the myelodysplastic syndromes. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2017; 2017:73-78. [PMID: 29222239 PMCID: PMC6142578 DOI: 10.1182/asheducation-2017.1.73] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The aging hematopoietic system undergoes numerous changes, including reduced production of red blood cells and lymphocytes as well as a relative increase in the production of myeloid cells. Emerging evidence indicates that many of these changes are due to selection pressures from cell-intrinsic and cell-extrinsic factors that result in clonal shifts in the hematopoietic stem cell (HSC) pool, resulting in predominant HSC clones that exhibit the functional characteristics associated with HSC aging. Given the recent descriptions of clonal hematopoiesis in aged populations, the increased risk of developing hematologic malignancies in individuals with clonal hematopoiesis, and the many similarities in hematopoietic aging and acquired bone marrow failure (BMF) syndromes, such as myelodysplastic syndromes (MDS), this raises significant questions regarding the relationship between aging hematopoiesis and MDS, including the factors that regulate HSC aging, whether clonal hematopoiesis is required for the development of MDS, and even whether BMF is an inevitable consequence of aging. In this article, we will review our current understanding of these processes and the potential intersections among them.
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Affiliation(s)
- Stephen S. Chung
- Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY; and
| | - Christopher Y. Park
- Department of Pathology, New York University School of Medicine, New York, NY
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19
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Aging, hematopoiesis, and the myelodysplastic syndromes. Blood Adv 2017; 1:2572-2578. [PMID: 29296910 DOI: 10.1182/bloodadvances.2017009852] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/11/2017] [Indexed: 01/12/2023] Open
Abstract
The aging hematopoietic system undergoes numerous changes, including reduced production of red blood cells and lymphocytes as well as a relative increase in the production of myeloid cells. Emerging evidence indicates that many of these changes are due to selection pressures from cell-intrinsic and cell-extrinsic factors that result in clonal shifts in the hematopoietic stem cell (HSC) pool, resulting in predominant HSC clones that exhibit the functional characteristics associated with HSC aging. Given the recent descriptions of clonal hematopoiesis in aged populations, the increased risk of developing hematologic malignancies in individuals with clonal hematopoiesis, and the many similarities in hematopoietic aging and acquired bone marrow failure (BMF) syndromes, such as myelodysplastic syndromes (MDS), this raises significant questions regarding the relationship between aging hematopoiesis and MDS, including the factors that regulate HSC aging, whether clonal hematopoiesis is required for the development of MDS, and even whether BMF is an inevitable consequence of aging. In this article, we will review our current understanding of these processes and the potential intersections among them.
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20
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Mawad D, Figtree G, Gentile C. Current Technologies Based on the Knowledge of the Stem Cells Microenvironments. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1041:245-262. [DOI: 10.1007/978-3-319-69194-7_13] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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