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Menon V, Slavinsky M, Hermine O, Ghaffari S. Mitochondrial regulation of erythropoiesis in homeostasis and disease. Br J Haematol 2024; 205:429-439. [PMID: 38946206 DOI: 10.1111/bjh.19600] [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: 03/12/2024] [Accepted: 06/06/2024] [Indexed: 07/02/2024]
Abstract
Erythroid cells undergo a highly complex maturation process, resulting in dynamic changes that generate red blood cells (RBCs) highly rich in haemoglobin. The end stages of the erythroid cell maturation process primarily include chromatin condensation and nuclear polarization, followed by nuclear expulsion called enucleation and clearance of mitochondria and other organelles to finally generate mature RBCs. While healthy RBCs are devoid of mitochondria, recent evidence suggests that mitochondria are actively implicated in the processes of erythroid cell maturation, erythroblast enucleation and RBC production. However, the extent of mitochondrial participation that occurs during these ultimate steps is not completely understood. This is specifically important since abnormal RBC retention of mitochondria or mitochondrial DNA contributes to the pathophysiology of sickle cell and other disorders. Here we review some of the key findings so far that elucidate the importance of this process in various aspects of erythroid maturation and RBC production under homeostasis and disease conditions.
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Affiliation(s)
- Vijay Menon
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Mary Slavinsky
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Olivier Hermine
- Department Hematology, Hôpital Necker, Assistance Publique Hôpitaux de Paris, University Paris Descartes, Paris, France
- INSERM U1163 and CNRS 8254, Imagine Institute, Université Sorbonne Paris Cité, Paris, France
| | - Saghi Ghaffari
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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2
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Bi S, Jiang X, Ji Q, Wang Z, Ren J, Wang S, Yu Y, Wang R, Liu Z, Liu J, Hu J, Sun G, Wu Z, Diao Z, Li J, Sun L, Izpisua Belmonte JC, Zhang W, Liu GH, Qu J. The sirtuin-associated human senescence program converges on the activation of placenta-specific gene PAPPA. Dev Cell 2024; 59:991-1009.e12. [PMID: 38484732 DOI: 10.1016/j.devcel.2024.02.008] [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: 03/12/2023] [Revised: 09/15/2023] [Accepted: 02/20/2024] [Indexed: 04/25/2024]
Abstract
Sirtuins are pro-longevity genes with chromatin modulation potential, but how these properties are connected is not well understood. Here, we generated a panel of isogeneic human stem cell lines with SIRT1-SIRT7 knockouts and found that any sirtuin deficiency leads to accelerated cellular senescence. Through large-scale epigenomic analyses, we show how sirtuin deficiency alters genome organization and that genomic regions sensitive to sirtuin deficiency are preferentially enriched in active enhancers, thereby promoting interactions within topologically associated domains and the formation of de novo enhancer-promoter loops. In all sirtuin-deficient human stem cell lines, we found that chromatin contacts are rewired to promote aberrant activation of the placenta-specific gene PAPPA, which controls the pro-senescence effects associated with sirtuin deficiency and serves as a potential aging biomarker. Based on our survey of the 3D chromatin architecture, we established connections between sirtuins and potential target genes, thereby informing the development of strategies for aging interventions.
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Affiliation(s)
- Shijia Bi
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyu Jiang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qianzhao Ji
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zehua Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Ren
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of RNA Science and Engineering, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China
| | - Si Wang
- Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; The Fifth People's Hospital of Chongqing, Chongqing 400062, China
| | - Yang Yu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Ruoqi Wang
- University of Chinese Academy of Sciences, Beijing 100049, China; National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zunpeng Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junhang Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianli Hu
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqiang Sun
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zeming Wu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Zhiqing Diao
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jingyi Li
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Liang Sun
- NHC Beijing Institute of Geriatrics, NHC Key Laboratory of Geriatrics, Institute of Geriatric Medicine of Chinese Academy of Medical Sciences, National Center of Gerontology/Beijing Hospital, Beijing 100730, China; Department of Clinical Laboratory, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | | | - Weiqi Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Aging Biomarker Consortium, Beijing 100101, China.
| | - Guang-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China; Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Aging Biomarker Consortium, Beijing 100101, China.
| | - Jing Qu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China; Aging Biomarker Consortium, Beijing 100101, China.
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3
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Cheng B, Fu X. The Role of Stem Cell on Wound Healing After Revascularization-Healing Following Revascularization-Unlocking Skin Potential. INT J LOW EXTR WOUND 2024; 23:63-69. [PMID: 37899578 DOI: 10.1177/15347346231210709] [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] [Indexed: 10/31/2023]
Abstract
Wound healing is a complex and dynamic process involving a series of cellular and molecular events. Revascularization, the restoration of blood flow to ischemic or damaged tissue, is a key step in wound healing. Adequate vascularization has been recognized as a necessary factor for successful tissue regeneration. In the later stage of revascularization and tissue remodeling in wound healing, stem cells regulate other repair cells and matrix formation by influencing the maturation of blood vessels. The reductive oxidation (REDOX) state may be a key mechanism through stem/progenitor cells to influence endothelial cells to mature blood vessels and improve the quality of healing. Mitochondria may play an important role in this process.
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Affiliation(s)
- Biao Cheng
- Department of Burns and Plastic Surgery, General Hospital of Southern Theater Command of PLA, Guangzhou, China
| | - Xiaobing Fu
- Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department, PLA General Hospital and PLA Medical College; Beijing Key Research Laboratory of Skin Injury, Repair and Regeneration; Research Unit of Trauma Care, Tissue Repair and Regeneration, Chinese Academy of Medical Sciences, Beijing, P. R. China
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4
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Han J, Duan S, Li Y, Xin C. Time-series analysis of hematopoietic stem cells. Medicine (Baltimore) 2024; 103:e36509. [PMID: 38394540 PMCID: PMC11309688 DOI: 10.1097/md.0000000000036509] [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: 05/20/2023] [Accepted: 11/16/2023] [Indexed: 02/25/2024] Open
Abstract
This study aimed to investigate the molecular mechanisms underlying the aging of hematopoietic stem cells (HSCs). Gene expression profile GSE32719 was downloaded from the Gene Expression Omnibus database, including 14 young, 5 middle, and 8 old HSCs. Differential expression analysis, short time-series expression miner analysis, and weighted co-expression network analysis were conducted to screen for hub genes whose expression changed over time during HSC aging. Subsequently, functional enrichment and multiple regulatory network analyses of the hub genes were performed. A total of 124 intersecting time-dependent differentially expressed and module genes were obtained, which were considered hub genes whose expression changed over time during HSC aging. Hub genes were significantly enriched in pathways such as the Hippo and AMP-activated protein kinase (AMPK) signaling pathways. Moreover, AP-1 Transcription Factor Subunit (FOS) and sirtuin 1 (SIRT1) had higher degrees in the protein-protein interaction network, were regulated by more transcription factors (TFs), such as Sp1 transcription factor (SP1) and BRCA1 DNA repair-associated (BRCA1), in the TF-mRNA-miRNA network, were associated with more diseases in the disease-gene network, and could be targeted by more drugs in the drug-gene network. Furthermore, SIRT1 was targeted by miR-9-5p in the TF-mRNA-miRNA network. Hub genes such as FOS and SIRT1 and key pathways such as the Hippo and AMPK signaling pathways may play crucial roles in HSC aging. Moreover, FOS and SIRT1 were regulated by SP1 and BRCA1, respectively, during HSC aging. Furthermore, miR-9-5p may modulate HSC aging by targeting SIRT1. Thus, FOS and SIRT1 may be potential therapeutic targets for age-related hematopoietic dysfunction.
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Affiliation(s)
- Jingjing Han
- Clinical Medical College of Jining Medical University, Jining Medical University, Jining, China
- Jining NO.1 People’s Hospital, Jining, China
| | - Shuangshuang Duan
- Clinical Medical College of Jining Medical University, Jining Medical University, Jining, China
- Jining NO.1 People’s Hospital, Jining, China
| | - Ya Li
- Jining NO.1 People’s Hospital, Jining, China
| | - Chunlei Xin
- Jining NO.1 People’s Hospital, Jining, China
- Yingjisha County People’s Hospital, Xinjiang, China
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5
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Nakashima R, Hosoda R, Tatekoshi Y, Iwahara N, Saga Y, Kuno A. Transcriptional dysregulation of autophagy in the muscle of a mouse model of Duchenne muscular dystrophy. Sci Rep 2024; 14:1365. [PMID: 38228650 DOI: 10.1038/s41598-024-51746-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024] Open
Abstract
It has been reported that autophagic activity is disturbed in the skeletal muscles of dystrophin-deficient mdx mice and patients with Duchenne muscular dystrophy (DMD). Transcriptional regulations of autophagy by FoxO transcription factors (FoxOs) and transcription factor EB (TFEB) play critical roles in adaptation to cellular stress conditions. Here, we investigated whether autophagic activity is dysregulated at the transcription level in dystrophin-deficient muscles. Expression levels of autophagy-related genes were globally decreased in tibialis anterior and soleus muscles of mdx mice compared with those of wild-type mice. DNA microarray data from the NCBI database also showed that genes related to autophagy were globally downregulated in muscles from patients with DMD. These downregulated genes are known as targets of FoxOs and TFEB. Immunostaining showed that nuclear localization of FoxO1 and FoxO3a was decreased in mdx mice. Western blot analyses demonstrated increases in phosphorylation levels of FoxO1 and FoxO3a in mdx mice. Nuclear localization of TFEB was also reduced in mdx mice, which was associated with elevated phosphorylation levels of TFEB. Collectively, the results suggest that autophagy is disturbed in dystrophin-deficient muscles via transcriptional downregulation due to phosphorylation-mediated suppression of FoxOs and TFEB.
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Affiliation(s)
- Ryuta Nakashima
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Ryusuke Hosoda
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Yuki Tatekoshi
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Naotoshi Iwahara
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
- Department of Neurology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yukika Saga
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan
| | - Atsushi Kuno
- Department of Pharmacology, Sapporo Medical University School of Medicine, South-1, West-17, Chuo-ku, Sapporo, 060-8556, Japan.
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6
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Zhang C, Meng Y, Han J. Emerging roles of mitochondrial functions and epigenetic changes in the modulation of stem cell fate. Cell Mol Life Sci 2024; 81:26. [PMID: 38212548 PMCID: PMC11072137 DOI: 10.1007/s00018-023-05070-6] [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: 11/01/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 01/13/2024]
Abstract
Mitochondria serve as essential organelles that play a key role in regulating stem cell fate. Mitochondrial dysfunction and stem cell exhaustion are two of the nine distinct hallmarks of aging. Emerging research suggests that epigenetic modification of mitochondria-encoded genes and the regulation of epigenetics by mitochondrial metabolites have an impact on stem cell aging or differentiation. Here, we review how key mitochondrial metabolites and behaviors regulate stem cell fate through an epigenetic approach. Gaining insight into how mitochondria regulate stem cell fate will help us manufacture and preserve clinical-grade stem cells under strict quality control standards, contributing to the development of aging-associated organ dysfunction and disease.
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Affiliation(s)
- Chensong Zhang
- State Key Laboratory of Biotherapy and Cancer Center, Frontiers Science Center for Disease-Related Molecular Network, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yang Meng
- State Key Laboratory of Biotherapy and Cancer Center, Frontiers Science Center for Disease-Related Molecular Network, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Junhong Han
- State Key Laboratory of Biotherapy and Cancer Center, Frontiers Science Center for Disease-Related Molecular Network, and National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, 610041, China.
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7
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Marzoog BA. Endothelial Dysfunction under the Scope of Arterial Hypertension, Coronary Heart Disease, and Diabetes Mellitus using the Angioscan. Cardiovasc Hematol Agents Med Chem 2024; 22:181-186. [PMID: 37921186 DOI: 10.2174/0118715257246589231018053646] [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: 03/07/2023] [Revised: 08/26/2023] [Accepted: 09/09/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Cardiovascular disease and diabetes mellitus are among the leading causes of mortality. OBJECTIVES Our study evaluated endothelial function in patients with arterial hypertension, coronary heart disease, and diabetes mellitus. AIMS This study aimed to assess the degree of endothelial dysfunction in individuals with cardiovascular risk factors older than 55 years of age. MATERIALS AND METHODS A total of 112 patients were subdivided into three groups according to the existing disease; the first group consisted of 50 patients diagnosed with arterial hypertension (AH), the second group consisted of 30 patients with ischemic heart disease (IHD), and the third group included 20 patients with type 2 diabetes mellitus (DM). The control group included 12 practically healthy volunteers, comparable in age and sex. Exclusion criteria were age under 55 years, severe concomitant diseases in the acute phase or acute infectious diseases, and oncopathology. Considered factors of cardiovascular risk include dyslipidemia, elevated fasting blood glucose, hypertension, obesity, cigarette smoking, and heredity for CVD. Moreover, tests were conducted with the help of the device 'AngioScan-01' (LLC "AngioScan Electronics"). Endothelium-dependent vasodilation (EDV), the index of stiffness of the vascular wall (SI), and the atherogenic index (log (TG/HDL - C )) were evaluated. The analysis of the data obtained was carried out using the IBM SPSS Statistic program. RESULTS In the control group, the atherogenic index was in the range of 3.34 (the normal is up to 3.5). The highest atherogenic index, 4.01, was observed in the DM group (differences with the control group are statistically significant). In the AH and IHD groups, the atherogenic index was 3.57 and 3.65, respectively. In the control group, the level of glycemia was 4.45 mmol/l. The highest level of fasting glucose was reported in the DM group, i.e., 6.7 mmol/l (differences with the control group were statistically significant). In the first and second groups, the fasting glucose level was 5.07 mmol/l and 5.08 mmol/l, respectively. In the control group, the mean EDV score was 2,056 ± 0.757 mm, and the lowest EDV in the DM group was 1.365 ± 0.413, but in the AH and IHD groups, it was also significantly reduced by 1.404 ± 0.440 and 1.377 ± 0.390, respectively. The stiffness index in the control group was 6.725 ± 0.776 m/s. In the DM group, this parameter was 8.258 ± 0.656 m/s; in the AH and IHD groups, it was 7.398 ± 1.330 m/s and 7.486 ± 0.816 m/s, respectively. CONCLUSION In conclusion, the study of endothelial function using non-invasive angioscan reflects the influence of risk factors on the vascular wall. The most severe endothelial dysfunction is expressed in patients with diabetes. The results of endothelium-dependent vasodilation and the vascular wall stiffness index (SI) correspond to the scale of evaluation of the 10-year CVD mortality risk (SCORE). These results indicate a deterioration in the vascular ability to vasodilate in patients in response to mechanical deformation of the endothelium and the effect of NO on smooth muscle vascular cells.
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Affiliation(s)
- Basheer Abdullah Marzoog
- World-Class Research Center, Digital Biodesign and Personalized Healthcare, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991, Moscow, Russia
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8
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Yan B, Yuan Q, Guryanova OA. Epigenetic Mechanisms in Hematologic Aging and Premalignant Conditions. EPIGENOMES 2023; 7:32. [PMID: 38131904 PMCID: PMC10743085 DOI: 10.3390/epigenomes7040032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/29/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
Hematopoietic stem cells (HSCs) are essential for maintaining overall health by continuously generating blood cells throughout an individual's lifespan. However, as individuals age, the hematopoietic system undergoes significant functional decline, rendering them more susceptible to age-related diseases. Growing research evidence has highlighted the critical role of epigenetic regulation in this age-associated decline. This review aims to provide an overview of the diverse epigenetic mechanisms involved in the regulation of normal HSCs during the aging process and their implications in aging-related diseases. Understanding the intricate interplay of epigenetic mechanisms that contribute to aging-related changes in the hematopoietic system holds great potential for the development of innovative strategies to delay the aging process. In fact, interventions targeting epigenetic modifications have shown promising outcomes in alleviating aging-related phenotypes and extending lifespan in various animal models. Small molecule-based therapies and reprogramming strategies enabling epigenetic rejuvenation have emerged as effective approaches for ameliorating or even reversing aging-related conditions. By acquiring a deeper understanding of these epigenetic mechanisms, it is anticipated that interventions can be devised to prevent or mitigate the rates of hematologic aging and associated diseases later in life. Ultimately, these advancements have the potential to improve overall health and enhance the quality of life in aging individuals.
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Affiliation(s)
- Bowen Yan
- Department of Pharmacology and Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA;
| | | | - Olga A. Guryanova
- Department of Pharmacology and Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA;
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9
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Karimnia N, Harris J, Heazlewood SY, Cao B, Nilsson SK. Metabolic regulation of aged hematopoietic stem cells: key players and mechanisms. Exp Hematol 2023; 128:2-9. [PMID: 37778498 DOI: 10.1016/j.exphem.2023.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/03/2023]
Affiliation(s)
- Nazanin Karimnia
- Biomedical Manufacturing, Commonwealth Scientific and Industrial Research Organisation, Clayton, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, Australia
| | - James Harris
- Biomedical Manufacturing, Commonwealth Scientific and Industrial Research Organisation, Clayton, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, Australia; School of Clinical Sciences, Monash Health, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Australia
| | - Shen Y Heazlewood
- Biomedical Manufacturing, Commonwealth Scientific and Industrial Research Organisation, Clayton, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, Australia
| | - Benjamin Cao
- Biomedical Manufacturing, Commonwealth Scientific and Industrial Research Organisation, Clayton, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, Australia.
| | - Susan K Nilsson
- Biomedical Manufacturing, Commonwealth Scientific and Industrial Research Organisation, Clayton, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, Australia.
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10
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Kasbekar M, Mitchell CA, Proven MA, Passegué E. Hematopoietic stem cells through the ages: A lifetime of adaptation to organismal demands. Cell Stem Cell 2023; 30:1403-1420. [PMID: 37865087 PMCID: PMC10842631 DOI: 10.1016/j.stem.2023.09.013] [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: 08/05/2023] [Revised: 09/20/2023] [Accepted: 09/28/2023] [Indexed: 10/23/2023]
Abstract
Hematopoietic stem cells (HSCs), which govern the production of all blood lineages, transition through a series of functional states characterized by expansion during fetal development, functional quiescence in adulthood, and decline upon aging. We describe central features of HSC regulation during ontogeny to contextualize how adaptive responses over the life of the organism ultimately form the basis for HSC functional degradation with age. We particularly focus on the role of cell cycle regulation, inflammatory response pathways, epigenetic changes, and metabolic regulation. We then explore how the knowledge of age-related changes in HSC regulation can inform strategies for the rejuvenation of old HSCs.
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Affiliation(s)
- Monica Kasbekar
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University, New York, NY 10032, USA; Division of Hematology and Medical Oncology, Department of Medicine, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Carl A Mitchell
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University, New York, NY 10032, USA
| | - Melissa A Proven
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University, New York, NY 10032, USA
| | - Emmanuelle Passegué
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University, New York, NY 10032, USA.
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11
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Wallace L, Obeng EA. Noncoding rules of survival: epigenetic regulation of normal and malignant hematopoiesis. Front Mol Biosci 2023; 10:1273046. [PMID: 38028538 PMCID: PMC10644717 DOI: 10.3389/fmolb.2023.1273046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 10/05/2023] [Indexed: 12/01/2023] Open
Abstract
Hematopoiesis is an essential process for organismal development and homeostasis. Epigenetic regulation of gene expression is critical for stem cell self-renewal and differentiation in normal hematopoiesis. Increasing evidence shows that disrupting the balance between self-renewal and cell fate decisions can give rise to hematological diseases such as bone marrow failure and leukemia. Consequently, next-generation sequencing studies have identified various aberrations in histone modifications, DNA methylation, RNA splicing, and RNA modifications in hematologic diseases. Favorable outcomes after targeting epigenetic regulators during disease states have further emphasized their importance in hematological malignancy. However, these targeted therapies are only effective in some patients, suggesting that further research is needed to decipher the complexity of epigenetic regulation during hematopoiesis. In this review, an update on the impact of the epigenome on normal hematopoiesis, disease initiation and progression, and current therapeutic advancements will be discussed.
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Affiliation(s)
| | - Esther A. Obeng
- Department of Oncology, St Jude Children’s Research Hospital, Memphis, TN, United States
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Statsenko Y, Kuznetsov NV, Morozova D, Liaonchyk K, Simiyu GL, Smetanina D, Kashapov A, Meribout S, Gorkom KNV, Hamoudi R, Ismail F, Ansari SA, Emerald BS, Ljubisavljevic M. Reappraisal of the Concept of Accelerated Aging in Neurodegeneration and Beyond. Cells 2023; 12:2451. [PMID: 37887295 PMCID: PMC10605227 DOI: 10.3390/cells12202451] [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: 08/04/2023] [Revised: 09/01/2023] [Accepted: 09/06/2023] [Indexed: 10/28/2023] Open
Abstract
BACKGROUND Genetic and epigenetic changes, oxidative stress and inflammation influence the rate of aging, which diseases, lifestyle and environmental factors can further accelerate. In accelerated aging (AA), the biological age exceeds the chronological age. OBJECTIVE The objective of this study is to reappraise the AA concept critically, considering its weaknesses and limitations. METHODS We reviewed more than 300 recent articles dealing with the physiology of brain aging and neurodegeneration pathophysiology. RESULTS (1) Application of the AA concept to individual organs outside the brain is challenging as organs of different systems age at different rates. (2) There is a need to consider the deceleration of aging due to the potential use of the individual structure-functional reserves. The latter can be restored by pharmacological and/or cognitive therapy, environment, etc. (3) The AA concept lacks both standardised terminology and methodology. (4) Changes in specific molecular biomarkers (MBM) reflect aging-related processes; however, numerous MBM candidates should be validated to consolidate the AA theory. (5) The exact nature of many potential causal factors, biological outcomes and interactions between the former and the latter remain largely unclear. CONCLUSIONS Although AA is commonly recognised as a perspective theory, it still suffers from a number of gaps and limitations that assume the necessity for an updated AA concept.
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Affiliation(s)
- Yauhen Statsenko
- Department of Radiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (Y.S.); (G.L.S.); (D.S.); (A.K.); (S.M.); (K.N.-V.G.)
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
- Big Data Analytic Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Nik V. Kuznetsov
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
| | - Daria Morozova
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
| | - Katsiaryna Liaonchyk
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
| | - Gillian Lylian Simiyu
- Department of Radiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (Y.S.); (G.L.S.); (D.S.); (A.K.); (S.M.); (K.N.-V.G.)
| | - Darya Smetanina
- Department of Radiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (Y.S.); (G.L.S.); (D.S.); (A.K.); (S.M.); (K.N.-V.G.)
| | - Aidar Kashapov
- Department of Radiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (Y.S.); (G.L.S.); (D.S.); (A.K.); (S.M.); (K.N.-V.G.)
| | - Sarah Meribout
- Department of Radiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (Y.S.); (G.L.S.); (D.S.); (A.K.); (S.M.); (K.N.-V.G.)
| | - Klaus Neidl-Van Gorkom
- Department of Radiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (Y.S.); (G.L.S.); (D.S.); (A.K.); (S.M.); (K.N.-V.G.)
| | - Rifat Hamoudi
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
- Division of Surgery and Interventional Science, University College London, London NW3 2PS, UK
| | - Fatima Ismail
- Department of Pediatrics, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
| | - Suraiya Anjum Ansari
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
- Department of Biochemistry and Molecular Biology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Bright Starling Emerald
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
- Department of Anatomy, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Milos Ljubisavljevic
- ASPIRE Precision Medicine Research Institute Abu Dhabi, United Arab Emirates University, Al Ain 27272, United Arab Emirates; (D.M.); (K.L.); (R.H.); (S.A.A.); (B.S.E.); (M.L.)
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Xu Y, Chiang YH, Ho PC, Vannini N. Mitochondria Dictate Function and Fate of HSCs and T Cells. Cancer Immunol Res 2023; 11:1303-1313. [PMID: 37789763 DOI: 10.1158/2326-6066.cir-22-0685] [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: 08/27/2022] [Revised: 01/23/2023] [Accepted: 08/16/2023] [Indexed: 10/05/2023]
Abstract
Hematopoietic stem cells (HSC) and T cells are intimately related, lineage-dependent cell populations that are extensively used as therapeutic products for the treatment of hematologic malignancies and certain types of solid tumors. These cellular therapies can be life-saving treatments; however, their efficacies are often limited by factors influencing their activity and cellular properties. Among these factors is mitochondrial metabolism, which influences the function and fate commitment of both HSCs and T cells. Mitochondria, besides being the "cellular powerhouse," provide metabolic intermediates that are used as substrates for epigenetic modifications and chromatin remodeling, thus, driving cell fate decisions during differentiation. Moreover, mitochondrial fitness and mitochondrial quality control mechanisms are closely related to cellular function, and impairment of these mitochondrial properties associates with cellular dysfunction due to factors such as T-cell exhaustion and aging. Here, we give an overview of the role of mitochondria in shaping the behavior of these lineage-related cell populations. Moreover, we discuss the potential of novel mitochondria-targeting strategies for enhancing HSC- and T cell-based cancer immunotherapies and highlight how design and application of such approaches requires consideration of the metabolic similarities and differences between HSCs and T cells. See related article on p. 1302.
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Affiliation(s)
- Yingxi Xu
- Department of Fundamental Oncology, University of Lausanne, Lausanne, Switzerland
- Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland
| | - Yi-Hsuan Chiang
- Department of Fundamental Oncology, University of Lausanne, Lausanne, Switzerland
- Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland
| | - Ping-Chih Ho
- Department of Fundamental Oncology, University of Lausanne, Lausanne, Switzerland
- Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland
| | - Nicola Vannini
- Department of Fundamental Oncology, University of Lausanne, Lausanne, Switzerland
- Ludwig Institute for Cancer Research, University of Lausanne, Epalinges, Switzerland
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14
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Fajardo-Orduña GR, Ledesma-Martínez E, Aguiñiga-Sanchez I, Weiss-Steider B, Santiago-Osorio E. Role of SIRT1 in Chemoresistant Leukemia. Int J Mol Sci 2023; 24:14470. [PMID: 37833921 PMCID: PMC10573076 DOI: 10.3390/ijms241914470] [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: 08/15/2023] [Revised: 09/21/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Leukemias of the AML, CML, and CLL types are the most common blood cancers worldwide, making them a major global public health problem. Furthermore, less than 24% of patients treated with conventional chemotherapy (low-risk patients) and 10-15% of patients ineligible for conventional chemotherapy (high-risk patients) survive five years. The low levels of survival are mainly due to toxicity and resistance to chemotherapy or other medication, the latter leading to relapse of the disease, which is the main obstacle to the treatment of leukemia. Drug resistance may include different molecular mechanisms, among which epigenetic regulators are involved. Silent information regulator 2 homolog 1 (SIRT1) is an epigenetic factor belonging to the sirtuin (SIRT) family known to regulate aspects of chromatin biology, genome stability, and metabolism, both in homeostasis processes and in different diseases, including cancer. The regulatory functions of SIRT1 in different biological processes and molecular pathways are dependent on the type and stage of the neoplasia; thus, it may act as both an oncogenic and tumor suppressor factor and may also participate in drug resistance. In this review, we explore the role of SIRT1 in drug-resistant leukemia and its potential as a therapeutic target.
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Affiliation(s)
- Guadalupe Rosario Fajardo-Orduña
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.R.F.-O.)
| | - Edgar Ledesma-Martínez
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.R.F.-O.)
| | - Itzen Aguiñiga-Sanchez
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.R.F.-O.)
- Department of Biomedical Sciences, School of Medicine, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City 56410, Mexico
| | - Benny Weiss-Steider
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.R.F.-O.)
| | - Edelmiro Santiago-Osorio
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.R.F.-O.)
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15
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Hieber C, Grabbe S, Bros M. Counteracting Immunosenescence-Which Therapeutic Strategies Are Promising? Biomolecules 2023; 13:1085. [PMID: 37509121 PMCID: PMC10377144 DOI: 10.3390/biom13071085] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
Aging attenuates the overall responsiveness of the immune system to eradicate pathogens. The increased production of pro-inflammatory cytokines by innate immune cells under basal conditions, termed inflammaging, contributes to impaired innate immune responsiveness towards pathogen-mediated stimulation and limits antigen-presenting activity. Adaptive immune responses are attenuated as well due to lowered numbers of naïve lymphocytes and their impaired responsiveness towards antigen-specific stimulation. Additionally, the numbers of immunoregulatory cell types, comprising regulatory T cells and myeloid-derived suppressor cells, that inhibit the activity of innate and adaptive immune cells are elevated. This review aims to summarize our knowledge on the cellular and molecular causes of immunosenescence while also taking into account senescence effects that constitute immune evasion mechanisms in the case of chronic viral infections and cancer. For tumor therapy numerous nanoformulated drugs have been developed to overcome poor solubility of compounds and to enable cell-directed delivery in order to restore immune functions, e.g., by addressing dysregulated signaling pathways. Further, nanovaccines which efficiently address antigen-presenting cells to mount sustained anti-tumor immune responses have been clinically evaluated. Further, senolytics that selectively deplete senescent cells are being tested in a number of clinical trials. Here we discuss the potential use of such drugs to improve anti-aging therapy.
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Affiliation(s)
- Christoph Hieber
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Institute of Molecular Biology (IMB), Ackermannweg 4, 55128 Mainz, Germany
| | - Stephan Grabbe
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
- Institute of Molecular Biology (IMB), Ackermannweg 4, 55128 Mainz, Germany
| | - Matthias Bros
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University Mainz, Langenbeckstraße 1, 55131 Mainz, Germany
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Papa L, Martin TC, Djedaini M, Zangui M, Ozbek U, Parsons R, Hoffman R, Schaniel C. Ex vivo reprogramming of human hematopoietic stem cells is accompanied by increased transcripts of genes regulating metabolic integrity. Exp Hematol 2023:S0301-472X(23)00157-1. [PMID: 37001723 DOI: 10.1016/j.exphem.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 03/31/2023]
Abstract
The regenerative potential of human hematopoietic stem cells (HSCs) is functionally defined by their ability to provide life-long blood cell production and to repopulate myeloablated allogeneic transplant recipients. The expansion of HSC numbers is dependent not only on HSC divisions but also on a coordinated adaptation of HSCs to metabolic stress. These variables are especially critical during the ex vivo culture of HSCs with cytokine combinations, which frequently results in HSC exhaustion. We have previously reported that human CD34+ hematopoietic stem and progenitor cells (HSPCs) can be efficiently reprogrammed ex vivo and that the number of phenotypic HSCs with long-term repopulation capacity is expanded in the presence of a combination of cytokines and an epigenetic modifier. Here, we present evidence that ex vivo HSC reprogramming and maintenance is accompanied by increased transcripts of genes regulating metabolic integrity, including SIRT1 and SIRT3.
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17
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Wang H, Han Y, Qian P. Emerging Roles of Epigenetic Regulators in Maintaining Hematopoietic Stem Cell Homeostasis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1442:29-44. [PMID: 38228957 DOI: 10.1007/978-981-99-7471-9_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Hematopoietic stem cells (HSCs) are adult stem cells with the ability of self-renewal and multilineage differentiation into functional blood cells, thus playing important roles in the homeostasis of hematopoiesis and the immune response. Continuous self-renewal of HSCs offers fresh supplies for the HSC pool, which differentiate into all kinds of mature blood cells, supporting the normal functioning of the entire blood system. Nevertheless, dysregulation of the homeostasis of hematopoiesis is often the cause of many blood diseases. Excessive self-renewal of HSCs leads to hematopoietic malignancies (e.g., leukemia), while deficiency in HSC regeneration results in pancytopenia (e.g., anemia). The regulation of hematopoietic homeostasis is finely tuned, and the rapid development of high-throughput sequencing technologies has greatly boosted research in this field. In this chapter, we will summarize the recent understanding of epigenetic regulators including DNA methylation, histone modification, chromosome remodeling, noncoding RNAs, and RNA modification that are involved in hematopoietic homeostasis, which provides fundamental basis for the development of therapeutic strategies against hematopoietic diseases.
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Affiliation(s)
- Hui Wang
- Center for Stem Cell and Regenerative Medicine and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University, Hangzhou, China
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Yingli Han
- Center for Stem Cell and Regenerative Medicine and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Liangzhu Laboratory, Zhejiang University, Hangzhou, China
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China
| | - Pengxu Qian
- Center for Stem Cell and Regenerative Medicine and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Liangzhu Laboratory, Zhejiang University, Hangzhou, China.
- Institute of Hematology, Zhejiang University & Zhejiang Engineering Laboratory for Stem Cell and Immunotherapy, Hangzhou, China.
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18
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Sirtuins and chemokines as markers of replicative and induced senescence of human endotheliocytes. ACTA BIOMEDICA SCIENTIFICA 2022. [DOI: 10.29413/abs.2022-7.5-2.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background. One of the factors of the pathogenesis of atherosclerosis and other cardiovascular diseases is induced endothelial senescence. In this regard, the urgent task of molecular biology and medicine is the search for molecules that affect the process of vascular endotheliocytes senescence.The aim. To assess the expression of Sirt-1,3,6 and chemokines IL-4, CXCL11 in the replicative and induced senescence of human endotheliocytes.Materials and methods. The study was conducted on the primary culture of isolated human umbilical vein endothelial cells (HUVECs). HUVECs were cultured under conditions of replicative (natural) and lipopolysaccharide induced senescence.Results. The synthesis of Sirt-1,3,6, IL-4 and CXCL11 was evaluated using western blot analysis. We revealed a decrease in Sirt-1,3,6 synthesis by 1.6–1.8 times (р < 0.05) in the conditions of HUVEC replicative senescence. Induced senescence of endotheliocytes is characterized by a more pronounced decrease (1.7–3.4 times; р < 0.05) in the Sirt-1,3,6 synthesis. CXCL11 synthesis increases by 1.4 times (р < 0.05) in replicative and by 3.4 times (р < 0.05) in induced HUVEC senescence. IL-4 synthesis increases by 4.7 times in conditions of induced HUVEC senescence and doesn’t have changes in replicative senescence of endotheliocytes.Conclusion. These data obtained indicate that sirtuins and chemokines play an important role in the development of endothelial dysfunction observed in natural and induced senescence.
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Vong P, Ouled-Haddou H, Garçon L. Histone Deacetylases Function in the Control of Early Hematopoiesis and Erythropoiesis. Int J Mol Sci 2022; 23:9790. [PMID: 36077192 PMCID: PMC9456231 DOI: 10.3390/ijms23179790] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Numerous studies have highlighted the role of post-translational modifications in the regulation of cell proliferation, differentiation and death. Among these modifications, acetylation modifies the physicochemical properties of proteins and modulates their activity, stability, localization and affinity for partner proteins. Through the deacetylation of a wide variety of functional and structural, nuclear and cytoplasmic proteins, histone deacetylases (HDACs) modulate important cellular processes, including hematopoiesis, during which different HDACs, by controlling gene expression or by regulating non-histone protein functions, act sequentially to provide a fine regulation of the differentiation process both in early hematopoietic stem cells and in more mature progenitors. Considering that HDAC inhibitors represent promising targets in cancer treatment, it is necessary to decipher the role of HDACs during hematopoiesis which could be impacted by these therapies. This review will highlight the main mechanisms by which HDACs control the hematopoietic stem cell fate, particularly in the erythroid lineage.
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Affiliation(s)
- Pascal Vong
- Université Picardie Jules Verne, HEMATIM UR4666, 80000 Amiens, France
| | | | - Loïc Garçon
- Université Picardie Jules Verne, HEMATIM UR4666, 80000 Amiens, France
- Service d’Hématologie Biologique, Centre Hospitalier Universitaire, CEDEX 1, 80054 Amiens, France
- Laboratoire de Génétique Constitutionnelle, Centre Hospitalier Universitaire, CEDEX 1, 80054 Amiens, France
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Therapeutic Effect of Melatonin in Premature Ovarian Insufficiency: Hippo Pathway Is Involved. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3425877. [PMID: 36017238 PMCID: PMC9398856 DOI: 10.1155/2022/3425877] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/20/2022] [Accepted: 08/01/2022] [Indexed: 11/23/2022]
Abstract
Objective Premature ovarian insufficiency (POI) is a female reproductive disorder of unknown etiology with no definite pathogenesis. Melatonin (MT) is an endogenous hormone synthesized mainly by pineal cells and has strong endogenous effects in regulating ovarian function. To systematically explore the pharmacological mechanism of MT on POI therapy, a literature review approach was conducted at the signaling pathways level. Methods Relevant literatures were searched and downloaded from databases, including PubMed and China National Knowledge Infrastructure, using the keywords “premature ovarian insufficiency,” “Hippo signaling pathways,” and “melatonin.” The search criteria were from 2010 to 2022. Text mining was also performed. Results MT is involved in the regulation of Hippo signaling pathway in a variety of modes and has been correlated with ovarian function. Conclusions The purpose of this review is to summarize the research progress of Hippo signaling pathways and significance of MT in POI, the potential crosstalk between MT and Hippo signaling pathways, and the prospective therapy.
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Fujino T, Asada S, Goyama S, Kitamura T. Mechanisms involved in hematopoietic stem cell aging. Cell Mol Life Sci 2022; 79:473. [PMID: 35941268 PMCID: PMC11072869 DOI: 10.1007/s00018-022-04356-5] [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: 01/28/2022] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 11/03/2022]
Abstract
Hematopoietic stem cells (HSCs) undergo progressive functional decline over time due to both internal and external stressors, leading to aging of the hematopoietic system. A comprehensive understanding of the molecular mechanisms underlying HSC aging will be valuable in developing novel therapies for HSC rejuvenation and to prevent the onset of several age-associated diseases and hematological malignancies. This review considers the general causes of HSC aging that range from cell-intrinsic factors to cell-extrinsic factors. In particular, epigenetics and inflammation have been implicated in the linkage of HSC aging, clonality, and oncogenesis. The challenges in clarifying mechanisms of HSC aging have accelerated the development of therapeutic interventions to rejuvenate HSCs, the major goal of aging research; these details are also discussed in this review.
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Affiliation(s)
- Takeshi Fujino
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan
| | - Shuhei Asada
- The Institute of Laboratory Animals, Tokyo Women's Medical University, Tokyo, 1628666, Japan
| | - Susumu Goyama
- Division of Molecular Oncology Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo, 1088639, Japan
| | - Toshio Kitamura
- Division of Cellular Therapy, The Institute of Medical Science, The University of Tokyo, Tokyo, 108-8639, Japan.
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Fichtel P, von Bonin M, Kuhnert R, Möbus K, Bornhäuser M, Wobus M. Mesenchymal Stromal Cell-Derived Extracellular Vesicles Modulate Hematopoietic Stem and Progenitor Cell Viability and the Expression of Cell Cycle Regulators in an Age-dependent Manner. Front Bioeng Biotechnol 2022; 10:892661. [PMID: 35721867 PMCID: PMC9198480 DOI: 10.3389/fbioe.2022.892661] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 05/18/2022] [Indexed: 11/13/2022] Open
Abstract
Aging of the hematopoietic system is characterized by an expansion of hematopoietic stem and progenitor cells (HSPCs) with reduced capacity for engraftment, self-renewal, and lymphoid differentiation, resulting in myeloid-biased hematopoiesis. This process is mediated by both HSPC intrinsic and extrinsic factors, e.g., the stromal environment. A relevant cellular component of the bone marrow (BM) microenvironment are mesenchymal stromal cells (MSCs) which regulate fate and differentiation of HSPCs. The bi-directional communication with HSPCs is mediated either by direct cell-cell contacts or by extracellular vesicles (EVs) which carry bioactive substances such as small RNA, DNA, lipids and proteins. So far, the impact of MSC-derived EVs on human hematopoietic aging is poorly investigated. BM MSCs were isolated from young (n = 3, median age: 22 years) and aged (n = 3, median age: 70 years) donors and the EVs were isolated after culturing the confluent cell layer in serum-free medium for 48 h. CD34+ HSPCs were purified from peripheral blood of healthy donors (n = 3, median age: 65 years) by magnetic sorting. Nanoparticle tracking analysis (NTA), transmission electron microscopy (TEM) and western blot detection of EV markers CD63, CD81 and Flotillin-1 revealed no significant differences between young and aged MSC-EVs. Interestingly, young MSCs secreted a significantly higher miRNA concentration than aged cells. However, the amount of distinct miRNAs such as miR-29a and miR-34a was significantly higher in aged MSC-EVs. HSPCs incubated with young EVs showed a significant increase in cell number and a higher viability. The expression of the tumor suppressors PTEN, a known target of mir-29a, and CDKN2A was increased in HSPCs incubated with young EVs. The clonogenic assay demonstrated a decreased colony number of CFU-GM after treatment with young EVs and an increased number of BFU-E/CFU-E after incubation with aged MSC-EVs. Xenogenic transplantation experiments showed no significant differences concerning the engraftment of lymphoid or myeloid cell compartments, but the overall human chimerism 8–16 weeks after transplantation was higher after EV treatment. In conclusion, our data suggest that HSPC characteristics such as cell cycle activity and clonogenicity can be modulated by MSC-derived EVs. Further studies have to elucidate the potential therapeutic relevance of our findings.
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Affiliation(s)
- Pascal Fichtel
- Department of Medicine I, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Malte von Bonin
- Department of Medicine I, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Robert Kuhnert
- Department of Medicine I, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Kristin Möbus
- Department of Medicine I, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Martin Bornhäuser
- Department of Medicine I, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
- Center for Regenerative Therapies, Technische Universität, Dresden, Germany
| | - Manja Wobus
- Department of Medicine I, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
- Center for Regenerative Therapies, Technische Universität, Dresden, Germany
- *Correspondence: Manja Wobus,
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Wang Z, Zhang C, Warden CD, Liu Z, Yuan YC, Guo C, Wang C, Wang J, Wu X, Ermel R, Vonderfecht SL, Wang X, Brown C, Forman S, Yang Y, James You M, Chen W. Loss of SIRT1 inhibits hematopoietic stem cell aging and age-dependent mixed phenotype acute leukemia. Commun Biol 2022; 5:396. [PMID: 35484199 PMCID: PMC9051098 DOI: 10.1038/s42003-022-03340-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 04/05/2022] [Indexed: 01/07/2023] Open
Abstract
Aging of hematopoietic stem cells (HSCs) is linked to various blood disorders and malignancies. SIRT1 has been implicated in healthy aging, but its role in HSC aging is poorly understood. Surprisingly, we found that Sirt1 knockout improved the maintenance of quiescence of aging HSCs and their functionality as well as mouse survival in serial bone marrow transplantation (BMT) recipients. The majority of secondary and tertiary BMT recipients of aging wild type donor cells developed B/myeloid mixed phenotype acute leukemia (MPAL), which was markedly inhibited by Sirt1 knockout. SIRT1 inhibition also reduced the growth and survival of human B/myeloid MPAL cells. Sirt1 knockout suppressed global gene activation in old HSCs, prominently the genes regulating protein synthesis and oxidative metabolism, which may involve multiple downstream transcriptional factors. Our results demonstrate an unexpected role of SIRT1 in promoting HSC aging and age-dependent MPAL and suggest SIRT1 may be a new therapeutic target for modulating functions of aging HSCs and treatment of MPAL.
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Affiliation(s)
- Zhiqiang Wang
- grid.410425.60000 0004 0421 8357Department of Cancer Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA ,grid.410425.60000 0004 0421 8357Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010 USA
| | - Chunxiao Zhang
- grid.410425.60000 0004 0421 8357Department of Cancer Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Charles David Warden
- grid.410425.60000 0004 0421 8357Integrative Genomics Core, Department of Molecular and Cellular Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Zheng Liu
- grid.410425.60000 0004 0421 8357Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Yate-Ching Yuan
- grid.410425.60000 0004 0421 8357Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Chao Guo
- grid.410425.60000 0004 0421 8357Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Charles Wang
- grid.410425.60000 0004 0421 8357Department of Molecular Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA ,grid.43582.380000 0000 9852 649XPresent Address: Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92350 USA
| | - Jinhui Wang
- grid.410425.60000 0004 0421 8357Integrative Genomics Core, Department of Molecular and Cellular Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Xiwei Wu
- grid.410425.60000 0004 0421 8357Integrative Genomics Core, Department of Molecular and Cellular Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | - Richard Ermel
- grid.410425.60000 0004 0421 8357Center for Comparative Medicine, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
| | | | - Xiuli Wang
- grid.410425.60000 0004 0421 8357Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010 USA
| | - Christine Brown
- grid.410425.60000 0004 0421 8357Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010 USA
| | - Stephen Forman
- grid.410425.60000 0004 0421 8357Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA 91010 USA
| | - Yaling Yang
- grid.240145.60000 0001 2291 4776Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - M. James You
- grid.240145.60000 0001 2291 4776Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030 USA
| | - WenYong Chen
- grid.410425.60000 0004 0421 8357Department of Cancer Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010 USA
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24
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Ren J, Wang X, Dong C, Wang G, Zhang W, Cai C, Qian M, Yang D, Ling B, Ning K, Mao Z, Liu B, Wang T, Xiong L, Wang W, Liang A, Gao Z, Xu J. Sirt1 protects subventricular zone derived neural stem cells from DNA double strand breaks and contributes to olfactory function maintenance in aging mice. Stem Cells 2022; 40:493-507. [PMID: 35349711 DOI: 10.1093/stmcls/sxac008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 12/09/2021] [Indexed: 11/12/2022]
Abstract
Abstract
DNA damage is assumed to accumulate in stem cells over time and their ability to withstand this damage and maintain tissue homeostasis is a key determinant of aging. Nonetheless, relatively few studies have investigated whether DNA damage does indeed accumulate in stem cells and whether this contributes to stem cell aging and functional decline. Here, we found that, compared with young mice, DNA double strand breaks (DSBs) are reduced in subventricular zone (SVZ)-derived neural stem cells (NSCs) of aged mice, which was achieved partly through the adaptive upregulation of Sirt1 expression and non-homologous end joining (NHEJ)-mediated DNA repair. Sirt1 deficiency abolished this effect, leading to stem cell exhaustion, olfactory memory decline, and accelerated aging. The reduced DSBs and the upregulation of Sirt1 expression in SVZ-derived NSCs with age may represent a compensatory mechanism that evolved to protect stem cells from excessive DNA damage, as well as mitigate memory loss and other stresses during aging.
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Affiliation(s)
- Jie Ren
- East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Xianli Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Chuanming Dong
- Department of Anatomy, Nantong University, Nantong, People's Republic of China
| | - Guangming Wang
- Department of Hematology, Tongji Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
- Postdoctoral Station of Clinical Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Wenjun Zhang
- Department of Hematology, Tongji Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Chunhui Cai
- Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Minxian Qian
- Medical Research Center, Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, People's Republic of China
| | - Danjing Yang
- East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Bin Ling
- Department of Intensive Care Unit, Affiliated Hospital of Yunnan University (The Second People's Hospital of Yunnan Province), Kunming, People's Republic of China
| | - Ke Ning
- Department of Neuroscience, Sheffield Institute for Translational Neuroscience, University of Sheffield, Sheffield, UK
| | - Zhiyong Mao
- School of Life Science and Technology, Tongji University, Shanghai, People's Republic of China
| | - Baohua Liu
- Medical Research Center, Department of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, People's Republic of China
| | - Tinghua Wang
- Animal Center of Zoology, Institute of Neuroscience, Kunming Medical University, Kunming, People's Republic of China
| | - Liuliu Xiong
- Animal Center of Zoology, Institute of Neuroscience, Kunming Medical University, Kunming, People's Republic of China
| | - Wenyuan Wang
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai, People's Republic of China
- Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Aibin Liang
- Department of Hematology, Tongji Hospital of Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Zhengliang Gao
- Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, People's Republic of China
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong), School of Medicine, Shanghai University, Nantong, People's Republic of China
| | - Jun Xu
- East Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
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25
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Sun Y, Lin X, Liu B, Zhang Y, Li W, Zhang S, He F, Tian H, Zhu X, Liu X, Wu J, Cai J, Li M. Loss of ATF4 leads to functional aging-like attrition of adult hematopoietic stem cells. SCIENCE ADVANCES 2021; 7:eabj6877. [PMID: 34936448 PMCID: PMC8694622 DOI: 10.1126/sciadv.abj6877] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Aging of hematopoietic stem cells (HSCs) directly contributes to dysfunction of hematopoietic and immune systems due to aging-associated alterations in HSC features. How the function of adult HSCs is regulated during aging so that relevant pathologic abnormalities may occur, however, remains incompletely understood. Here, we report that ATF4 deficiency provokes severe HSC defects with multifaceted aging-like phenotype via cell-autonomous mechanisms. ATF4 deletion caused expansion of phenotypical HSCs with functional attrition, characterized by defective repopulating and self-renewal capacities and myeloid bias. Moreover, the ATF4−/− HSC defects were associated with elevated mitochondrial ROS production by targeting HIF1α. In addition, loss of ATF4 significantly delayed leukemogenesis in the MLL-AF9–induced leukemia model. Mechanistically, ATF4 deficiency impaired HSC function with aging-like phenotype and alleviated leukemogenesis by regulating HIF1α and p16Ink4a. Together, our findings suggest a possibility of developing new strategies for the prevention and management of HSC aging and related pathological conditions.
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Affiliation(s)
- Yan Sun
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
- Corresponding author. (M.L.); (Y.S.); (J.C.)
| | - Xiaolin Lin
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bangdong Liu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Yaxuan Zhang
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wei Li
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Sheng Zhang
- Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Falian He
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Han Tian
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Xun Zhu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Ximeng Liu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Jueheng Wu
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Junchao Cai
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
- Corresponding author. (M.L.); (Y.S.); (J.C.)
| | - Mengfeng Li
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510080, China
- Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
- Corresponding author. (M.L.); (Y.S.); (J.C.)
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26
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Watroba M, Szukiewicz D. Sirtuins at the Service of Healthy Longevity. Front Physiol 2021; 12:724506. [PMID: 34899370 PMCID: PMC8656451 DOI: 10.3389/fphys.2021.724506] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Sirtuins may counteract at least six hallmarks of organismal aging: neurodegeneration, chronic but ineffective inflammatory response, metabolic syndrome, DNA damage, genome instability, and cancer incidence. Moreover, caloric restriction is believed to slow down aging by boosting the activity of some sirtuins through activating adenosine monophosphate-activated protein kinase (AMPK), thus raising the level of intracellular nicotinamide adenine dinucleotide (NAD+) by stimulating NAD+ biosynthesis. Sirtuins and their downstream effectors induce intracellular signaling pathways related to a moderate caloric restriction within cells, mitigating reactive oxygen species (ROS) production, cell senescence phenotype (CSP) induction, and apoptosis as forms of the cellular stress response. Instead, it can promote DNA damage repair and survival of cells with normal, completely functional phenotypes. In this review, we discuss mechanisms of sirtuins action toward cell-conserving phenotype associated with intracellular signaling pathways related to moderate caloric restriction, as well as some tissue-specific functions of sirtuins, especially in the central nervous system, heart muscle, skeletal muscles, liver, kidneys, white adipose tissue, hematopoietic system, and immune system. In this context, we discuss the possibility of new therapeutic approaches.
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Affiliation(s)
- Mateusz Watroba
- Department of Biophysics, Physiology and Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
| | - Dariusz Szukiewicz
- Department of Biophysics, Physiology and Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
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27
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Gámez-García A, Vazquez BN. Nuclear Sirtuins and the Aging of the Immune System. Genes (Basel) 2021; 12:1856. [PMID: 34946805 PMCID: PMC8701065 DOI: 10.3390/genes12121856] [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: 10/06/2021] [Revised: 11/17/2021] [Accepted: 11/18/2021] [Indexed: 12/24/2022] Open
Abstract
The immune system undergoes major changes with age that result in altered immune populations, persistent inflammation, and a reduced ability to mount effective immune responses against pathogens and cancer cells. Aging-associated changes in the immune system are connected to other age-related diseases, suggesting that immune system rejuvenation may provide a feasible route to improving overall health in the elderly. The Sir2 family of proteins, also called sirtuins, have been broadly implicated in genome homeostasis, cellular metabolism, and aging. Sirtuins are key responders to cellular and environmental stress and, in the case of the nuclear sirtuins, they do so by directing responses to chromatin that include gene expression regulation, retrotransposon repression, enhanced DNA damage repair, and faithful chromosome segregation. In the immune system, sirtuins instruct cellular differentiation from hematopoietic precursors and promote leukocyte polarization and activation. In hematopoietic stem cells, sirtuins safeguard quiescence and stemness to prevent cellular exhaustion. Regulation of cytokine production, which, in many cases, requires NF-κB regulation, is the best-characterized mechanism by which sirtuins control innate immune reactivity. In adaptive immunity, sirtuins promote T cell subset differentiation by controlling master regulators, thereby ensuring an optimal balance of helper (Th) T cell-dependent responses. Sirtuins are very important for immune regulation, but the means by which they regulate immunosenescence are not well understood. This review provides an integrative overview of the changes associated with immune system aging and its potential relationship with the roles of nuclear sirtuins in immune cells and overall organismal aging. Given the anti-aging properties of sirtuins, understanding how they contribute to immune responses is of vital importance and may help us develop novel strategies to improve immune performance in the aging organism.
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Affiliation(s)
- Andrés Gámez-García
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Ctra de Can Ruti, Camí de les Escoles s/n, 08916 Badalona, Spain;
| | - Berta N. Vazquez
- Chromatin Biology Laboratory, Josep Carreras Leukaemia Research Institute (IJC), Ctra de Can Ruti, Camí de les Escoles s/n, 08916 Badalona, Spain;
- Unitat de Citologia i d’Histologia, Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona (UAB), Cerdanyola del Valles, 08193 Barcelona, Spain
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28
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Morganti C, Ito K. Mitochondrial Contributions to Hematopoietic Stem Cell Aging. Int J Mol Sci 2021; 22:11117. [PMID: 34681777 PMCID: PMC8537916 DOI: 10.3390/ijms222011117] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 02/07/2023] Open
Abstract
Mitochondrial dysfunction and stem cell exhaustion are two hallmarks of aging. In the hematopoietic system, aging is linked to imbalanced immune response and reduced regenerative capacity in hematopoietic stem cells (HSCs), as well as an increased predisposition to a spectrum of diseases, including myelodysplastic syndrome and acute myeloid leukemia. Myeloid-biased differentiation and loss of polarity are distinct features of aged HSCs, which generally exhibit enhanced mitochondrial oxidative phosphorylation and increased production of reactive oxygen species (ROS), suggesting a direct role for mitochondria in the degenerative process. Here, we provide an overview of current knowledge of the mitochondrial mechanisms that contribute to age-related phenotypes in HSCs. These include mitochondrial ROS production, alteration/activation of mitochondrial metabolism, the quality control pathway of mitochondria, and inflammation. Greater understanding of the key machineries of HSC aging will allow us to identify new therapeutic targets for preventing, delaying, or even reversing aspects of this process.
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Affiliation(s)
- Claudia Morganti
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY 10461, USA;
- Departments of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Keisuke Ito
- Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY 10461, USA;
- Departments of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Department of Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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29
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Mehrpouri M, Pourbagheri-Sigaroodi A, Bashash D. The contributory roles of histone deacetylases (HDACs) in hematopoiesis regulation and possibilities for pharmacologic interventions in hematologic malignancies. Int Immunopharmacol 2021; 100:108114. [PMID: 34492531 DOI: 10.1016/j.intimp.2021.108114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 12/17/2022]
Abstract
Although the definitive role of epigenetic modulations in a wide range of hematologic malignancies, spanning from leukemia to lymphoma and multiple myeloma, has been evidenced, few articles reviewed the task. Given the high accessibility of histone deacetylase (HDACs) to necessary transcription factors involved in hematopoiesis, this review aims to outline physiologic impacts of these enzymes in normal hematopoiesis, and also to outline the original data obtained from international research laboratories on their regulatory role in the differentiation and maturation of different hematopoietic lineages. Questions on how aberrant expression of HDACs contributes to the formation of hematologic malignancies are also responded, because these classes of enzymes have a respectable share in the development, progression, and recurrence of leukemia, lymphoma, and multiple myeloma. The last section provides a special focus on the therapeutic perspectiveof HDACs inhibitors, either as single agents or in a combined-modal strategy, in these neoplasms. In conclusion, optimizing the dose and the design of more patient-tailored inhibitors, while maintaining low toxicity against normal cells, will help improve clinical outcomes of HDAC inhibitors in hematologic malignancies.
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Affiliation(s)
- Mahdieh Mehrpouri
- Department of Laboratory Sciences, School of Allied Medical Sciences, Alborz University of Medical Sciences, Karaj, Iran
| | - Atieh Pourbagheri-Sigaroodi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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30
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Palla G, Pollner P, Börcsök J, Major A, Molnár B, Csabai I. Hierarchy and control of ageing-related methylation networks. PLoS Comput Biol 2021; 17:e1009327. [PMID: 34534207 PMCID: PMC8480875 DOI: 10.1371/journal.pcbi.1009327] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 09/29/2021] [Accepted: 08/05/2021] [Indexed: 11/28/2022] Open
Abstract
DNA methylation provides one of the most widely studied biomarkers of ageing. Since the methylation of CpG dinucleotides function as switches in cellular mechanisms, it is plausible to assume that by proper adjustment of these switches age may be tuned. Though, adjusting hundreds of CpG methylation levels coherently may never be feasible and changing just a few positions may lead to biologically unstable state. A prominent example of methylation-based age estimators is provided by Horvath's clock, based on 353 CpG dinucleotides, showing a high correlation (not necessarily causation) with chronological age across multiple tissue types. On this small subset of CpG dinucleotides we demonstrate how the adjustment of one methylation level leads to a cascade of changes at other sites. Among the studied subset, we locate the most important CpGs (and related genes) that may have a large influence on the rest of the sub-system. According to our analysis, the structure of this network is way more hierarchical compared to what one would expect based on ensembles of uncorrelated connections. Therefore, only a handful of CpGs is enough to modify the system towards a desired state. When propagation of the change over the network is taken into account, the resulting modification in the predicted age can be significantly larger compared to the effect of isolated CpG perturbations. By adjusting the most influential single CpG site and following the propagation of methylation level changes we can reach up to 5.74 years in virtual age reduction, significantly larger than without taking into account of the network control. Extending our approach to the whole methylation network may identify key nodes that have controller role in the ageing process.
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Affiliation(s)
- Gergely Palla
- Health Services Management Training Centre, Semmelweis University, Budapest, Hungary
- MTA-ELTE Statistical and Biological Physics Research Group, Dept. of Biological Physics, Eötvös University, Budapest, Hungary
| | - Péter Pollner
- Health Services Management Training Centre, Semmelweis University, Budapest, Hungary
- MTA-ELTE Statistical and Biological Physics Research Group, Dept. of Biological Physics, Eötvös University, Budapest, Hungary
| | - Judit Börcsök
- Danish Cancer Society Research Center, Copenhagen, Denmark
| | - András Major
- Dept. of Physics of Complex Systems, ELTE Eötvös University, Budapest, Hungary
| | - Béla Molnár
- Molecular Medicine Research Group, Hungarian Academy of Sciences, Budapest, Hungary
| | - István Csabai
- Dept. of Physics of Complex Systems, ELTE Eötvös University, Budapest, Hungary
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31
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Das M, Kale V. Involvement of extracellular vesicles in aging process and their beneficial effects in alleviating aging-associated symptoms. Cell Biol Int 2021; 45:2403-2419. [PMID: 34427351 DOI: 10.1002/cbin.11691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 06/25/2021] [Accepted: 08/14/2021] [Indexed: 12/16/2022]
Abstract
Aging is a gradual and unavoidable physiological phenomenon that manifests in the natural maturation process and continues to progress from infanthood to adulthood. Many elderly people suffer from aging-associated hematological and nonhematological disorders. Recent advances in regenerative medicine have shown new revolutionary paths of treating such diseases using stem cells; however, aging also affects the quality and competence of stem and progenitor cells themselves and ultimately directs their death or apoptosis and senescence, leading to a decline in their regenerative potential. Recent research works show that extracellular vesicles (EVs) isolated from different types of stem cells may provide a safe treatment for aging-associated disorders. The cargo of EVs comprises packets of information in the form of various macromolecules that can modify the fate of the target cells. To harness the true potential of EVs in regenerative medicine, it is necessary to understand how this cargo contributes to the rejuvenation of aged stem and progenitor populations and to identify the aging-associated changes in the macromolecular profile of the EVs themselves. In this review, we endeavor to summarize the current knowledge of the involvement of EVs in the aging process and delineate the role of EVs in the reversal of aging-associated phenotypes. We have also analyzed the involvement of the molecular cargo of EVs in the generation of aging-associated disorders. This knowledge could not only help us in understanding the mechanism of the aging process but could also facilitate the development of new cell-free biologics to treat aging-related disorders in the future.
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Affiliation(s)
- Madhurima Das
- Symbiosis Centre for Stem Cell Research, Symbiosis International (Deemed University), Pune, India
| | - Vaijayanti Kale
- Symbiosis Centre for Stem Cell Research, Symbiosis International (Deemed University), Pune, India
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32
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Pessoa Rodrigues C, Akhtar A. Differential H4K16ac levels ensure a balance between quiescence and activation in hematopoietic stem cells. SCIENCE ADVANCES 2021; 7:eabi5987. [PMID: 34362741 PMCID: PMC8346211 DOI: 10.1126/sciadv.abi5987] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/21/2021] [Indexed: 05/13/2023]
Abstract
Hematopoietic stem cells (HSCs) are able to reconstitute the bone marrow while retaining their self-renewal property. Individual HSCs demonstrate heterogeneity in their repopulating capacities. Here, we found that the levels of the histone acetyltransferase MOF (males absent on the first) and its target modification histone H4 lysine 16 acetylation are heterogeneous among HSCs and influence their proliferation capacities. The increased proliferative capacities of MOF-depleted cells are linked to their expression of CD93. The CD93+ HSC subpopulation simultaneously shows transcriptional features of quiescent HSCs and functional features of active HSCs. CD93+ HSCs were expanded and exhibited an enhanced proliferative advantage in Mof +/- animals reminiscent of a premalignant state. Accordingly, low MOF and high CD93 levels correlate with poor survival and increased proliferation capacity in leukemia. Collectively, our study indicates H4K16ac as an important determinant for HSC heterogeneity, which is linked to the onset of monocytic disorders.
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Affiliation(s)
- Cecilia Pessoa Rodrigues
- Department of Chromatin Regulation, Max Planck Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany
- Faculty of Biology, University of Freiburg, Schaenzlestrasse 1, 79104 Freiburg, Germany
- International Max Planck Research School for Molecular and Cellular Biology (IMPRS-MCB), Freiburg, Germany
| | - Asifa Akhtar
- Department of Chromatin Regulation, Max Planck Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany.
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33
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UTX maintains the functional integrity of the murine hematopoietic system by globally regulating aging-associated genes. Blood 2021; 137:908-922. [PMID: 33174606 DOI: 10.1182/blood.2019001044] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/18/2020] [Indexed: 02/07/2023] Open
Abstract
Epigenetic regulation is essential for the maintenance of the hematopoietic system, and its deregulation is implicated in hematopoietic disorders. In this study, UTX, a demethylase for lysine 27 on histone H3 (H3K27) and a component of COMPASS-like and SWI/SNF complexes, played an essential role in the hematopoietic system by globally regulating aging-associated genes. Utx-deficient (UtxΔ/Δ) mice exhibited myeloid skewing with dysplasia, extramedullary hematopoiesis, impaired hematopoietic reconstituting ability, and increased susceptibility to leukemia, which are the hallmarks of hematopoietic aging. RNA-sequencing (RNA-seq) analysis revealed that Utx deficiency converted the gene expression profiles of young hematopoietic stem-progenitor cells (HSPCs) to those of aged HSPCs. Utx expression in hematopoietic stem cells declined with age, and UtxΔ/Δ HSPCs exhibited increased expression of an aging-associated marker, accumulation of reactive oxygen species, and impaired repair of DNA double-strand breaks. Pathway and chromatin immunoprecipitation analyses coupled with RNA-seq data indicated that UTX contributed to hematopoietic homeostasis mainly by maintaining the expression of genes downregulated with aging via demethylase-dependent and -independent epigenetic programming. Of note, comparison of pathway changes in UtxΔ/Δ HSPCs, aged muscle stem cells, aged fibroblasts, and aged induced neurons showed substantial overlap, strongly suggesting common aging mechanisms among different tissue stem cells.
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Wang MJ, Chen JJ, Song SH, Su J, Zhao LH, Liu QG, Yang T, Chen Z, Liu C, Fu ZR, Hu YP, Chen F. Inhibition of SIRT1 Limits Self-Renewal and Oncogenesis by Inducing Senescence of Liver Cancer Stem Cells. J Hepatocell Carcinoma 2021; 8:685-699. [PMID: 34235106 PMCID: PMC8254544 DOI: 10.2147/jhc.s296234] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 06/02/2021] [Indexed: 01/07/2023] Open
Abstract
Purpose Cancer stem cells (CSCs) have been considered involving in tumorigenesis, local recurrence, and therapeutic drug resistance of hepatocellular carcinoma (HCC). To investigate novel and effective methods for targeting hepatic CSCs is crucial for a permanent cure of liver cancer. Methods The expression level of SIRT1 was detected in CSCs of HCC tissues and cancer cell lines. Expression of CSC markers, the self-renewal and tumorigenic ability of liver CSCs were analyzed with SIRT1 inhibition. Cellular senescence-related markers were used to detect CSCs senescence after inhibition of SIRT1. Results SIRT1 was highly expressed in CSCs of HCC cell lines and human HCC tissues. In vitro study revealed that decreasing of SIRT1 level significantly downregulated the stemness-associated genes of liver CSCs and reduced the CSC stemness properties. Also, downregulated SIRT1 suppressed liver CSCs proliferation by decreasing their self-renewal abilities. Furthermore, CSCs with decreased SIRT1 expression showed limited tumorigenicity and formed smaller HCC tumor in vivo. And SIRT1 decreased CSCs became more susceptible to chemotherapeutic drugs. Mechanistically, SIRT1 decreased CSCs became senescence through the activation of p53-p21 and p16 pathway. The data further indicated that the tumor formed from SIRT1-knockdown CSCs exhibited higher senescence-associated β-galactosidase (SA-β-Gal) activity but lower proliferative capacity. Conclusion Taken together, these findings pointed that induction of senescence in liver CSCs is an effective tumor suppression method for HCC, and SIRT1 may be served as a promising target for HCC treatment.
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Affiliation(s)
- Min-Jun Wang
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
| | - Jia-Jia Chen
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
| | - Shao-Hua Song
- Department of General Surgery, Liver Transplantation Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Jing Su
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
| | - Ling-Hao Zhao
- National Center for Liver Cancer, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Qing-Gui Liu
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
| | - Tao Yang
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
| | - Zhiwen Chen
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, People's Republic of China
| | - Chang Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, People's Republic of China
| | - Zhi-Ren Fu
- Department of General Surgery, Liver Transplantation Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Yi-Ping Hu
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
| | - Fei Chen
- Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University (Navy Medical University), Shanghai, People's Republic of China
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Inflammation, epigenetics, and metabolism converge to cell senescence and ageing: the regulation and intervention. Signal Transduct Target Ther 2021; 6:245. [PMID: 34176928 PMCID: PMC8236488 DOI: 10.1038/s41392-021-00646-9] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 05/09/2021] [Accepted: 05/13/2021] [Indexed: 02/05/2023] Open
Abstract
Remarkable progress in ageing research has been achieved over the past decades. General perceptions and experimental evidence pinpoint that the decline of physical function often initiates by cell senescence and organ ageing. Epigenetic dynamics and immunometabolic reprogramming link to the alterations of cellular response to intrinsic and extrinsic stimuli, representing current hotspots as they not only (re-)shape the individual cell identity, but also involve in cell fate decision. This review focuses on the present findings and emerging concepts in epigenetic, inflammatory, and metabolic regulations and the consequences of the ageing process. Potential therapeutic interventions targeting cell senescence and regulatory mechanisms, using state-of-the-art techniques are also discussed.
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Sun X, Cao B, Naval-Sanchez M, Pham T, Sun YBY, Williams B, Heazlewood SY, Deshpande N, Li J, Kraus F, Rae J, Nguyen Q, Yari H, Schröder J, Heazlewood CK, Fulton M, Hatwell-Humble J, Das Gupta K, Kapetanovic R, Chen X, Sweet MJ, Parton RG, Ryan MT, Polo JM, Nefzger CM, Nilsson SK. Nicotinamide riboside attenuates age-associated metabolic and functional changes in hematopoietic stem cells. Nat Commun 2021; 12:2665. [PMID: 33976125 PMCID: PMC8113506 DOI: 10.1038/s41467-021-22863-0] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 03/29/2021] [Indexed: 12/13/2022] Open
Abstract
With age, hematopoietic stem cells (HSC) undergo changes in function, including reduced regenerative potential and loss of quiescence, which is accompanied by a significant expansion of the stem cell pool that can lead to haematological disorders. Elevated metabolic activity has been implicated in driving the HSC ageing phenotype. Here we show that nicotinamide riboside (NR), a form of vitamin B3, restores youthful metabolic capacity by modifying mitochondrial function in multiple ways including reduced expression of nuclear encoded metabolic pathway genes, damping of mitochondrial stress and a decrease in mitochondrial mass and network-size. Metabolic restoration is dependent on continuous NR supplementation and accompanied by a shift of the aged transcriptome towards the young HSC state, more youthful bone marrow cellular composition and an improved regenerative capacity in a transplant setting. Consequently, NR administration could support healthy ageing by re-establishing a more youthful hematopoietic system.
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Affiliation(s)
- Xuan Sun
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Benjamin Cao
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Marina Naval-Sanchez
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Tony Pham
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Yu Bo Yang Sun
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia
| | - Brenda Williams
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Shen Y Heazlewood
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Nikita Deshpande
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Jinhua Li
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia
| | - Felix Kraus
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, Australia
| | - James Rae
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Quan Nguyen
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Hamed Yari
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Jan Schröder
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia
| | - Chad K Heazlewood
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Madeline Fulton
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Jessica Hatwell-Humble
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
| | - Kaustav Das Gupta
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
- IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, QLD, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, QLD, Australia
| | - Ronan Kapetanovic
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
- IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, QLD, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, QLD, Australia
| | - Xiaoli Chen
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
| | - Matthew J Sweet
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
- IMB Centre for Inflammation and Disease Research, The University of Queensland, St. Lucia, QLD, Australia
- Australian Infectious Diseases Research Centre, The University of Queensland, St. Lucia, QLD, Australia
| | - Robert G Parton
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia
- Centre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, QLD, Australia
| | - Michael T Ryan
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Melbourne, VIC, Australia
| | - Jose M Polo
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia
| | - Christian M Nefzger
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia.
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
- Monash Biomedicine Discovery Institute, Melbourne, VIC, Australia.
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC, Australia.
| | - Susan K Nilsson
- Biomedical Manufacturing Commonwealth Scientific and Industrial Research Organisation (CSIRO), Melbourne, VIC, Australia.
- Australian Regenerative Medicine Institute, Monash University, Melbourne, VIC, Australia.
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Menon V, Ghaffari S. Erythroid enucleation: a gateway into a "bloody" world. Exp Hematol 2021; 95:13-22. [PMID: 33440185 PMCID: PMC8147720 DOI: 10.1016/j.exphem.2021.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 12/18/2022]
Abstract
Erythropoiesis is an intricate process starting in hematopoietic stem cells and leading to the daily production of 200 billion red blood cells (RBCs). Enucleation is a greatly complex and rate-limiting step during terminal maturation of mammalian RBC production involving expulsion of the nucleus from the orthochromatic erythroblasts, resulting in the formation of reticulocytes. The dynamic enucleation process involves many factors ranging from cytoskeletal proteins to transcription factors to microRNAs. Lack of optimum terminal erythroid maturation and enucleation has been an impediment to optimum RBC production ex vivo. Major efforts in the past two decades have exposed some of the mechanisms that govern the enucleation process. This review focuses in detail on mechanisms implicated in enucleation and discusses the future perspectives of this fascinating process.
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Affiliation(s)
- Vijay Menon
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Saghi Ghaffari
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY; Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY.
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38
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Lasigliè D. Sirtuins and the prevention of immunosenescence. VITAMINS AND HORMONES 2021; 115:221-264. [PMID: 33706950 DOI: 10.1016/bs.vh.2020.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aging of hematopoietic stem cells (HSCs) has been largely described as one underlying cause of senescence of the immune-hematopoietic system (immunosenescence). A set of well-defined hallmarks characterizes aged HSCs contributing to unbalanced hematopoiesis and aging-associated functional alterations of both branches of the immune system. In this chapter, the contribution of sirtuins, a family of conserved NAD+ dependent deacetylases with key roles in metabolism, genome integrity, aging and lifespan, to immunosenescence, will be addressed. In particular, the role of SIRT6 will be deeply analyzed highlighting a multifaceted part of this deacetylase in HSCs aging as well as in the immunosenescence of dendritic cells (DCs). These and other emerging data are currently paving the way for future design and development of rejuvenation means aiming at rescuing age-related changes in immune function in the elderly and combating age-associated hematopoietic diseases.
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Affiliation(s)
- Denise Lasigliè
- Istituto Comprensivo "Franco Marro", Ministero dell'Istruzione Ministero dell'Università e della Ricerca (M.I.U.R), Villar Perosa, TO, Italy.
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Broxmeyer HE, Liu Y, Kapur R, Orschell CM, Aljoufi A, Ropa JP, Trinh T, Burns S, Capitano ML. Fate of Hematopoiesis During Aging. What Do We Really Know, and What are its Implications? Stem Cell Rev Rep 2020; 16:1020-1048. [PMID: 33145673 PMCID: PMC7609374 DOI: 10.1007/s12015-020-10065-y] [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] [Accepted: 10/19/2020] [Indexed: 12/11/2022]
Abstract
There is an ongoing shift in demographics such that older persons will outnumber young persons in the coming years, and with it age-associated tissue attrition and increased diseases and disorders. There has been increased information on the association of the aging process with dysregulation of hematopoietic stem (HSC) and progenitor (HPC) cells, and hematopoiesis. This review provides an extensive up-to date summary on the literature of aged hematopoiesis and HSCs placed in context of potential artifacts of the collection and processing procedure, that may not be totally representative of the status of HSCs in their in vivo bone marrow microenvironment, and what the implications of this are for understanding aged hematopoiesis. This review covers a number of interactive areas, many of which have not been adequately explored. There are still many unknowns and mechanistic insights to be elucidated to better understand effects of aging on the hematopoietic system, efforts that will take multidisciplinary approaches, and that could lead to means to ameliorate at least some of the dysregulation of HSCs and HPCs associated with the aging process. Graphical Abstract.
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Affiliation(s)
- Hal E Broxmeyer
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA.
| | - Yan Liu
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Reuben Kapur
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Christie M Orschell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Arafat Aljoufi
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA
| | - James P Ropa
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA
| | - Thao Trinh
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA
| | - Sarah Burns
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Maegan L Capitano
- Department of Microbiology and Immunology, Indiana University School of Medicine, 950 West Walnut Street, R2-302, Indianapolis, IN, 46202-5181, USA.
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Zhang L, Mack R, Breslin P, Zhang J. Molecular and cellular mechanisms of aging in hematopoietic stem cells and their niches. J Hematol Oncol 2020; 13:157. [PMID: 33228751 PMCID: PMC7686726 DOI: 10.1186/s13045-020-00994-z] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 02/08/2023] Open
Abstract
Aging drives the genetic and epigenetic changes that result in a decline in hematopoietic stem cell (HSC) functioning. Such changes lead to aging-related hematopoietic/immune impairments and hematopoietic disorders. Understanding how such changes are initiated and how they progress will help in the development of medications that could improve the quality life for the elderly and to treat and possibly prevent aging-related hematopoietic diseases. Here, we review the most recent advances in research into HSC aging and discuss the role of HSC-intrinsic events, as well as those that relate to the aging bone marrow niche microenvironment in the overall processes of HSC aging. In addition, we discuss the potential mechanisms by which HSC aging is regulated.
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Affiliation(s)
- Lei Zhang
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA
| | - Ryan Mack
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA
| | - Peter Breslin
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA.,Departments of Molecular/Cellular Physiology and Department of Biology, Loyola University Medical Center and Loyola University Chicago, Chicago, IL, 60660, USA
| | - Jiwang Zhang
- Department of Cancer Biology, Oncology Institute, Cardinal Bernardin Cancer Center, Loyola University Medical Center, Maywood, IL, 60153, USA. .,Department of Pathology, Loyola University Medical Center, Maywood, IL, 60153, USA.
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Rasha F, Mims BM, Castro-Piedras I, Barnes BJ, Grisham MB, Rahman RL, Pruitt K. The Versatility of Sirtuin-1 in Endocrinology and Immunology. Front Cell Dev Biol 2020; 8:589016. [PMID: 33330467 PMCID: PMC7717970 DOI: 10.3389/fcell.2020.589016] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/27/2020] [Indexed: 12/13/2022] Open
Abstract
Sirtuins belong to the class III family of NAD-dependent histone deacetylases (HDAC) and are involved in diverse physiological processes that range from regulation of metabolism and endocrine function to coordination of immunity and cellular responses to stress. Sirtuin-1 (SIRT1) is the most well-studied family member and has been shown to be critically involved in epigenetics, immunology, and endocrinology. The versatile roles of SIRT1 include regulation of energy sensing metabolic homeostasis, deacetylation of histone and non-histone proteins in numerous tissues, neuro-endocrine regulation via stimulation of hypothalamus-pituitary axes, synthesis and maintenance of reproductive hormones via steroidogenesis, maintenance of innate and adaptive immune system via regulation of T- and B-cell maturation, chronic inflammation and autoimmune diseases. Moreover, SIRT1 is an appealing target in various disease contexts due to the promise of pharmacological and/or natural modulators of SIRT1 activity within the context of endocrine and immune-related disease models. In this review we aim to provide a broad overview on the role of SIRT1 particularly within the context of endocrinology and immunology.
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Affiliation(s)
- Fahmida Rasha
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Brianyell McDaniel Mims
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Isabel Castro-Piedras
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | - Betsy J. Barnes
- Laboratory of Autoimmune and Cancer Research, Center for Autoimmune Musculoskeletal and Hematopoietic Disease, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Department of Molecular Medicine and Department of Pediatrics, Zucker School of Medicine at Hofstra-Northwell, Hempstead, NY, United States
| | - Matthew B. Grisham
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
| | | | - Kevin Pruitt
- Department of Immunology and Molecular Microbiology, Texas Tech University Health Sciences Center, Lubbock, TX, United States
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Hussain A, Deleuze V, El Kebriti L, Turali H, Pirot N, Glasson Y, Mathieu D, Pinet V. In Lyl1 -/- mice, adipose stem cell vascular niche impairment leads to premature development of fat tissues. STEM CELLS (DAYTON, OHIO) 2020; 39:78-91. [PMID: 33022858 PMCID: PMC7821250 DOI: 10.1002/stem.3286] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 09/22/2020] [Indexed: 12/11/2022]
Abstract
Lyl1 encodes a hematopoietic‐ and endothelial‐specific bHLH transcription factor. Lyl1‐deficient mice are viable, but they display mild hematopoietic and vascular defects. Specifically, LYL1 is required for the maturation and stabilization of blood vessel endothelial adherens junctions. Here, we report that young adult Lyl1−/− mice exhibit transient overweight associated with general expansion of adipose tissue, without signs of metabolic disorder and unrelated to food intake. The increased fat tissue development in Lyl1−/− mice resulted from earlier differentiation of adipose stem cells (ASCs) into adipocytes through noncell autonomous mechanisms. Specifically, we found that in Lyl1−/− mice, the adipose tissue vascular structures are immature, as indicated by their high permeability, reduced coverage by pericytes, lower recruitment of VE‐cadherin and ZO1 at cell junctions, and more prone to angiogenesis. Together, our data show that in Lyl1−/− mice, the impaired vascular compartment of the adipose niche promotes ASC differentiation, leading to early adipocyte expansion and premature ASC depletion. Our study highlights the major structural role of the adipose tissue vascular niche in coordinating stem cell self‐renewal and differentiation into adipocytes.
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Affiliation(s)
- Abid Hussain
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Virginie Deleuze
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Leila El Kebriti
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Hulya Turali
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Nelly Pirot
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Yaël Glasson
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Danièle Mathieu
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
| | - Valérie Pinet
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Montpellier, France
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Yang Z, Jiang H. A chromatin perspective on metabolic and genotoxic impacts on hematopoietic stem and progenitor cells. Cell Mol Life Sci 2020; 77:4031-4047. [PMID: 32318759 PMCID: PMC7541408 DOI: 10.1007/s00018-020-03522-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/17/2020] [Accepted: 04/06/2020] [Indexed: 02/07/2023]
Abstract
Fate determination in self-renewal and differentiation of hematopoietic stem and progenitor cells (HSCs and HPCs) is ultimately controlled by gene expression, which is profoundly influenced by the global and local chromatin state. Cellular metabolism directly influences the chromatin state through the dynamic regulation of the enzymatic activities that modify DNA and histones, but also generates genotoxic metabolites that can damage DNA and thus pose threat to the genome integrity. On the other hand, mechanisms modulating the chromatin state impact metabolism by regulating the expression and activities of key metabolic enzymes. Moreover, through regulating either DNA damage response directly or expression of genes involved in this process, chromatin modulators play active and crucial roles in guarding the genome integrity, breaching of which results in defective HSPC function. Therefore, HSPC function is regulated by the dynamic and two-way interactions between metabolism and chromatin. Here, we review recent advances that provide a chromatin perspective on the major impacts the metabolic and genotoxic factors can have on HSPC function and fate determination.
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Affiliation(s)
- Zhenhua Yang
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Hao Jiang
- Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA.
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Fang Y, An N, Zhu L, Gu Y, Qian J, Jiang G, Zhao R, Wei W, Xu L, Zhang G, Yao X, Yuan N, Zhang S, Zhao Y, Wang J. Autophagy-Sirt3 axis decelerates hematopoietic aging. Aging Cell 2020; 19:e13232. [PMID: 32951306 PMCID: PMC7576273 DOI: 10.1111/acel.13232] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/05/2020] [Accepted: 07/26/2020] [Indexed: 12/13/2022] Open
Abstract
Autophagy suppresses mitochondrial metabolism to preserve hematopoietic stem cells (HSCs) in mice. However, the mechanism by which autophagy regulates hematopoietic aging, in particular in humans, has largely been unexplored. Here, we demonstrate that reduction of autophagy in both hematopoietic cells and their stem cells is associated with aged hematopoiesis in human population. Mechanistically, autophagy delays hematopoietic aging by activating the downstream expression of Sirt3, a key mitochondrial protein capable of rejuvenating blood. Sirt3 is the most abundant Sirtuin family member in HSC‐enriched population, though it declines as the capacity for autophagy deteriorates with aging. Activation of autophagy upregulates Sirt3 in wild‐type mice, whereas in autophagy‐defective mice, Sirt3 expression is crippled in the entire hematopoietic hierarchy, but forced expression of Sirt3 in HSC‐enriched cells reduces oxidative stress and prevents accelerated hematopoietic aging from autophagy defect. Importantly, the upregulation of Sirt3 by manipulation of autophagy is validated in human HSC‐enriched cells. Thus, our results identify an autophagy‐Sirt3 axis in regulating hematopoietic aging and suggest a possible interventional solution to human blood rejuvenation via activation of the axis.
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Affiliation(s)
- Yixuan Fang
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
- State Key Laboratory of Radiation Medicine and Radioprotection Soochow University School of Medicine Suzhou China
| | - Ni An
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
| | - Lingjiang Zhu
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
| | - Yue Gu
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
| | - Jiawei Qian
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
| | - Gaoyue Jiang
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
| | - Ruijin Zhao
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
| | - Wen Wei
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
| | - Li Xu
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
| | - Gaochuan Zhang
- School of Biology and Basic Medical Sciences Soochow University Suzhou China
| | - Xingyun Yao
- School of Biology and Basic Medical Sciences Soochow University Suzhou China
| | - Na Yuan
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
- State Key Laboratory of Radiation Medicine and Radioprotection Soochow University School of Medicine Suzhou China
| | - Suping Zhang
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
- State Key Laboratory of Radiation Medicine and Radioprotection Soochow University School of Medicine Suzhou China
| | - Yun Zhao
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- State Key Laboratory of Radiation Medicine and Radioprotection Soochow University School of Medicine Suzhou China
| | - Jianrong Wang
- Hematology Center of Cyrus Tang Medical Institute Jiangsu Institute of Hematology Institute of Blood and Marrow Transplantation Collaborative Innovation Center of Hematology National Clinical Research Center for Hematologic Diseases, The First Affiliated Hospital Soochow University School of Medicine Suzhou China
- Department of Hematopoietic Engineering Susky Life SciTech (Suzhou) Co., LTD. Suzhou China
- State Key Laboratory of Radiation Medicine and Radioprotection Soochow University School of Medicine Suzhou China
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Xu C, Wang L, Fozouni P, Evjen G, Chandra V, Jiang J, Lu C, Nicastri M, Bretz C, Winkler JD, Amaravadi R, Garcia BA, Adams PD, Ott M, Tong W, Johansen T, Dou Z, Berger SL. SIRT1 is downregulated by autophagy in senescence and ageing. Nat Cell Biol 2020; 22:1170-1179. [PMID: 32989246 PMCID: PMC7805578 DOI: 10.1038/s41556-020-00579-5] [Citation(s) in RCA: 243] [Impact Index Per Article: 60.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 08/17/2020] [Indexed: 12/01/2022]
Abstract
SIRT1 (Sir2) is an NAD+-dependent deacetylase that plays critical roles in a broad range of biological events, including metabolism, the immune response and ageing1-5. Although there is strong interest in stimulating SIRT1 catalytic activity, the homeostasis of SIRT1 at the protein level is poorly understood. Here we report that macroautophagy (hereafter referred to as autophagy), a catabolic membrane trafficking pathway that degrades cellular components through autophagosomes and lysosomes, mediates the downregulation of mammalian SIRT1 protein during senescence and in vivo ageing. In senescence, nuclear SIRT1 is recognized as an autophagy substrate and is subjected to cytoplasmic autophagosome-lysosome degradation, via the autophagy protein LC3. Importantly, the autophagy-lysosome pathway contributes to the loss of SIRT1 during ageing of several tissues related to the immune and haematopoietic system in mice, including the spleen, thymus, and haematopoietic stem and progenitor cells, as well as in CD8+CD28- T cells from aged human donors. Our study reveals a mechanism in the regulation of the protein homeostasis of SIRT1 and suggests a potential strategy to stabilize SIRT1 to promote productive ageing.
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Affiliation(s)
- Caiyue Xu
- Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Lu Wang
- Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Parinaz Fozouni
- Gladstone Institutes, San Francisco, CA, 94158, USA,Department of Medicine, University of California, San Francisco, San Francisco, CA, 94125, USA
| | - Gry Evjen
- Molecular Cancer Research Group, Institute of Medical Biology, University of Tromsø- The Arctic University of Norway, Tromsø 9037, Norway
| | - Vemika Chandra
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, 19104, USA,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jing Jiang
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, 19104, USA,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA,Current address: Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, Jiangsu, 225001, China
| | - Congcong Lu
- Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Michael Nicastri
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Corey Bretz
- Sanford Burnham Prebys Medical Discovery Institute, San Diego, CA, 92037, USA
| | - Jeffrey D. Winkler
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Ravi Amaravadi
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Benjamin A. Garcia
- Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Peter D. Adams
- Sanford Burnham Prebys Medical Discovery Institute, San Diego, CA, 92037, USA
| | - Melanie Ott
- Gladstone Institutes, San Francisco, CA, 94158, USA,Department of Medicine, University of California, San Francisco, San Francisco, CA, 94125, USA
| | - Wei Tong
- Division of Hematology, Children’s Hospital of Philadelphia, Philadelphia, PA, 19104, USA,Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Terje Johansen
- Molecular Cancer Research Group, Institute of Medical Biology, University of Tromsø- The Arctic University of Norway, Tromsø 9037, Norway
| | - Zhixun Dou
- Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA. .,Harvard Stem Cell Institute, Harvard University, Cambridge, MA, USA. .,Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
| | - Shelley L. Berger
- Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA,Department of Biology, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, 19104, USA,Correspondence should be addressed to S.L.B. () or Z.D. ()
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46
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Schüler SC, Gebert N, Ori A. Stem cell aging: The upcoming era of proteins and metabolites. Mech Ageing Dev 2020; 190:111288. [DOI: 10.1016/j.mad.2020.111288] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/04/2020] [Accepted: 06/16/2020] [Indexed: 02/07/2023]
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Zhang ZJ, Wang KP, Mo JG, Xiong L, Wen Y. Photodynamic therapy regulates fate of cancer stem cells through reactive oxygen species. World J Stem Cells 2020; 12:562-584. [PMID: 32843914 PMCID: PMC7415247 DOI: 10.4252/wjsc.v12.i7.562] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/17/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023] Open
Abstract
Photodynamic therapy (PDT) is an effective and promising cancer treatment. PDT directly generates reactive oxygen species (ROS) through photochemical reactions. This oxygen-dependent exogenous ROS has anti-cancer stem cell (CSC) effect. In addition, PDT may also increase ROS production by altering metabolism, endoplasmic reticulum stress, or potential of mitochondrial membrane. It is known that the half-life of ROS in PDT is short, with high reactivity and limited diffusion distance. Therefore, the main targeting position of PDT is often the subcellular localization of photosensitizers, which is helpful for us to explain how PDT affects CSC characteristics, including differentiation, self-renewal, apoptosis, autophagy, and immunogenicity. Broadly speaking, excess ROS will damage the redox system and cause oxidative damage to molecules such as DNA, change mitochondrial permeability, activate unfolded protein response, autophagy, and CSC resting state. Therefore, understanding the molecular mechanism by which ROS affect CSCs is beneficial to improve the efficiency of PDT and prevent tumor recurrence and metastasis. In this article, we review the effects of two types of photochemical reactions on PDT, the metabolic processes, and the biological effects of ROS in different subcellular locations on CSCs.
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Affiliation(s)
- Zi-Jian Zhang
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China
| | - Kun-Peng Wang
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou 318000, Zhejiang Province, China
| | - Jing-Gang Mo
- Department of General Surgery, Taizhou Central Hospital (Taizhou University Hospital), Taizhou 318000, Zhejiang Province, China
| | - Li Xiong
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China
| | - Yu Wen
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China.
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48
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Jang HJ, Yang KE, Oh WK, Lee SI, Hwang IH, Ban KT, Yoo HS, Choi JS, Yeo EJ, Jang IS. Nectandrin B-mediated activation of the AMPK pathway prevents cellular senescence in human diploid fibroblasts by reducing intracellular ROS levels. Aging (Albany NY) 2020; 11:3731-3749. [PMID: 31199782 PMCID: PMC6594796 DOI: 10.18632/aging.102013] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 05/31/2019] [Indexed: 12/13/2022]
Abstract
Nectandrin B (NecB) is a bioactive lignan compound isolated from Myristica fragrans (nutmeg), which functions as an activator of AMP-activated protein kinase (AMPK). Because we recently found that treatment with NecB increased the cell viability of old human diploid fibroblasts (HDFs), the underlying molecular mechanism was investigated. NecB treatment in old HDFs reduced the activity staining of senescence-associated β-galactosidase and the levels of senescence markers, such as the Ser15 phosphorylated p53, caveolin-1, p21waf1, p16ink4a, p27kip1, and cyclin D1. NecB treatment increased that in S phase, indicating a enhancement of cell cycle entry. Interestingly, NecB treatment ameliorated age-dependent activation of AMPK in old HDFs. Moreover, NecB reversed the age-dependent expression and/or activity changes of certain sirtuins (SIRT1-5), and cell survival/death-related proteins. The transcriptional activity of Yin-Yang 1 and the expression of downstream proteins were elevated in NecB-treated old HDFs. In addition, NecB treatment exerted a radical scavenging effect in vitro, reduced cellular ROS levels, and increased antioxidant enzymes in old HDFs. Moreover, NecB-mediated activation of the AMPK pathway reduced intracellular ROS levels. These results suggest that NecB-induced protection against cellular senescence is mediated by ROS-scavenging through activation of AMPK. NecB might be useful in ameliorating age-related diseases and extending human lifespan.
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Affiliation(s)
- Hyun-Jin Jang
- Drug & Disease Target Group, Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea.,Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Kyeong Eun Yang
- Drug & Disease Target Group, Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Won Keun Oh
- Korea Bioactive Natural Material Bank, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Song-I Lee
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea
| | - In-Hu Hwang
- Neuroscience Research Institute, Korea University College of Medicine, Seoul 136-705, Republic of Korea
| | - Kyung-Tae Ban
- East-West Cancer Center, Daejeon University, Daejeon, 302-120, Republic of Korea
| | - Hwa-Seung Yoo
- East-West Cancer Center, Daejeon University, Daejeon, 302-120, Republic of Korea
| | - Jong-Soon Choi
- Drug & Disease Target Group, Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Eui-Ju Yeo
- Department of Health Sciences and Technology, GAIHST, Gachon University, Incheon 21999, Republic of Korea.,Department of Biochemistry, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Ik-Soon Jang
- Drug & Disease Target Group, Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea.,Division of Analytical Science, University of Science and Technology, Daejeon 34113, Republic of Korea
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49
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Zhou Y, Wang YP, He YH, Ding JC. Ginsenoside Rg1 Performs Anti-Aging Functions by Suppressing Mitochondrial Pathway-Mediated Apoptosis and Activating Sirtuin 3 (SIRT3)/Superoxide Dismutase 2 (SOD2) Pathway in Sca-1⁺ HSC/HPC Cells of an Aging Rat Model. Med Sci Monit 2020; 26:e920666. [PMID: 32253370 PMCID: PMC7163334 DOI: 10.12659/msm.920666] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background Aging is characterized by progressive deterioration in metabolic and physiological process. The present research assessed the antagonistic effects and mechanisms of Ginsenoside Rg1 (Rg1) on aging of HSCs/HPCs. Material/Methods Fifty male Sprague-Dawley (SD) rats were treated and divided into the following groups: Control (n=10), Model (n=10, treated with D-galactose, as aging model), Rg1 Control (n=10), Rg1 treatment (n=10), and Rg1 prevention (n=10). An aging rat model was established by subcutaneous injection with D-gal. HSC/HPC cells were stained using SA-β-Gal staining. HSC/HPC cells were examined using flow cytometry assay. CFU-mix assay, with a few modifications, was performed. Cleaved caspase-3, B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax) were examined using qRT-PCR. Sirtuin 3 (SIRT3) and superoxide dismutase 2 (SOD2) expression was determined using Western blot assay and qRT-PCR. Results Rg1 (treatment and prevention group) significantly decreased SA-β-Gal-positive staining in Sca-1+ HSC/HPC cells compared to that of the D-gal model (p<0.05). Rg1 significantly enhanced formation capacity of CFU-Mix compared to the D-gal model (p<0.05) in Sca-1+ HSC/HPC cells. Rg1 significantly reduced G0/G1 phase of Sca-1+ HSC/HPC cells compared to that of the D-gal model (p<0.05). Rg1 significantly decreased cleaved caspase 3 and Bax expression, and increased Bcl-2 expression compared to the D-gal model (p<0.05). Rg1 treatment remarkably upregulated expressions of SIRT3 and SOD2 compared to that of the D-gal model group (p<0.05). Conclusions Rg1 conducted functions of anti-aging in Sca-1+ HSC/HPC cells in the D-gal-induced aging model by inhibiting mitochondrial pathway-mediated apoptosis and activating the SIRT3/SOD2 signaling pathway.
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Affiliation(s)
- Yue Zhou
- Department of Histology and Embryology, Dali University, Key Laboratory of Cell Biology in Yunnan Province, Dali, Yunnan, China (mainland)
| | - Yan-Ping Wang
- Stem Cell and Tissue Engineering Laboratory, Department of Histology and Embryology, Chongqing Medical University, Chongqing, China (mainland)
| | - Ying-Hong He
- Department of Histology and Embryology, Dali University, Key Laboratory of Cell Biology in Yunnan Province, Dali, Yunnan, China (mainland)
| | - Ji-Chao Ding
- Department of Histology and Embryology, Dali University, Key Laboratory of Cell Biology in Yunnan Province, Dali, Yunnan, China (mainland)
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50
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Pesl M, Jelinkova S, Caluori G, Holicka M, Krejci J, Nemec P, Kohutova A, Zampachova V, Dvorak P, Rotrekl V. Cardiovascular progenitor cells and tissue plasticity are reduced in a myocardium affected by Becker muscular dystrophy. Orphanet J Rare Dis 2020; 15:65. [PMID: 32138751 PMCID: PMC7057505 DOI: 10.1186/s13023-019-1257-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/19/2019] [Indexed: 02/06/2023] Open
Abstract
Abstract We describe the association of Becker muscular dystrophy (BMD) derived heart failure with the impairment of tissue homeostasis and remodeling capabilities of the affected heart tissue. We report that BMD heart failure is associated with a significantly decreased number of cardiovascular progenitor cells, reduced cardiac fibroblast migration, and ex vivo survival. Background Becker muscular dystrophy belongs to a class of genetically inherited dystrophin deficiencies. It affects male patients and results in progressive skeletal muscle degeneration and dilated cardiomyopathy leading to heart failure. It is a relatively mild form of dystrophin deficiency, which allows patients to be on a heart transplant list. In this unique situation, the explanted heart is a rare opportunity to study the degenerative process of dystrophin-deficient cardiac tissue. Heart tissue was excised, dissociated, and analyzed. The fractional content of c-kit+/CD45− cardiovascular progenitor cells (CVPCs) and cardiac fibroblast migration were compared to control samples of atrial tissue. Control tissue was obtained from the hearts of healthy organ donor’s during heart transplantation procedures. Results We report significantly decreased CVPCs (c-kit+/CD45−) throughout the heart tissue of a BMD patient, and reduced numbers of phase-bright cells presenting c-kit positivity in the dystrophin-deficient cultured explants. In addition, ex vivo CVPCs survival and cardiac fibroblasts migration were significantly reduced, suggesting reduced homeostatic support and irreversible tissue remodeling. Conclusions Our findings associate genetically derived heart failure in a dystrophin-deficient patient with decreased c-kit+/CD45− CVPCs and their resilience, possibly hinting at a lack of cardioprotective capability and/or reduced homeostatic support. This also correlates with reduced plasticity of the explanted cardiac tissue, related to the process of irreversible remodeling in the BMD patient’s heart.
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Affiliation(s)
- Martin Pesl
- Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 62500, Czech Republic.,International Clinical Research Center, (ICRC), St. Anne's University Hospital, Pekarska 53, Brno, 65691, Czech Republic.,1st Department of Cardiovascular Diseases, St. Anne's University Hospital and Masaryk University, Pekarska 53, Brno, 65691, Czech Republic
| | - Sarka Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 62500, Czech Republic.,International Clinical Research Center, (ICRC), St. Anne's University Hospital, Pekarska 53, Brno, 65691, Czech Republic
| | - Guido Caluori
- International Clinical Research Center, (ICRC), St. Anne's University Hospital, Pekarska 53, Brno, 65691, Czech Republic.,Central European Institute of Technology (CEITEC MU), Nanobiotechnology, Kamenice 5, Brno, 62500, Czech Republic
| | - Maria Holicka
- Department of Cardiology, University Hospital Brno, Jihlavska 20, Brno, 62500, Czech Republic
| | - Jan Krejci
- 1st Department of Cardiovascular Diseases, St. Anne's University Hospital and Masaryk University, Pekarska 53, Brno, 65691, Czech Republic
| | - Petr Nemec
- Center for Cardiovascular Surgery and Transplantation, Pekarska 53, Brno, 65691, Czech Republic
| | - Aneta Kohutova
- Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 62500, Czech Republic.,International Clinical Research Center, (ICRC), St. Anne's University Hospital, Pekarska 53, Brno, 65691, Czech Republic
| | - Vita Zampachova
- 1st Department of Pathology, Faculty of Medicine, Masaryk University and St. Anne's University Hospital in Brno, Pekarska 53, Brno, 65691, Czech Republic
| | - Petr Dvorak
- Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 62500, Czech Republic
| | - Vladimir Rotrekl
- Department of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, 62500, Czech Republic. .,International Clinical Research Center, (ICRC), St. Anne's University Hospital, Pekarska 53, Brno, 65691, Czech Republic.
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