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Shimizu S, Iba T, Naito H, Rahmawati FN, Konishi H, Jia W, Muramatsu F, Takakura N. Aging impairs the ability of vascular endothelial stem cells to generate endothelial cells in mice. Angiogenesis 2023; 26:567-580. [PMID: 37563497 PMCID: PMC10542733 DOI: 10.1007/s10456-023-09891-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/21/2023] [Indexed: 08/12/2023]
Abstract
Tissue-resident vascular endothelial stem cells (VESCs), marked by expression of CD157, possess long-term repopulating potential and contribute to vascular regeneration and homeostasis in mice. Stem cell exhaustion is regarded as one of the hallmarks of aging and is being extensively studied in several types of tissue-resident stem cells; however, how aging affects VESCs has not been clarified yet. In the present study, we isolated VESCs from young and aged mice to compare their potential to differentiate into endothelial cells in vitro and in vivo. Here, we report that the number of liver endothelial cells (ECs) including VESCs was lower in aged (27-28 month-old) than young (2-3 month-old) mice. In vitro culture of primary VESCs revealed that the potential to generate ECs is impaired in aged VESCs isolated from liver and lung relative to young VESCs. Orthotopic transplantation of VESCs showed that aged VESCs and their progeny expand less efficiently than their young counterparts when transplanted into aged mice, but they are equally functional in young recipients. Gene expression analysis indicated that inflammatory signaling was more activated in aged ECs including VESCs. Using single-cell RNA sequencing data from the Tabula Muris Consortium, we show that T cells and monocyte/macrophage lineage cells including Kupffer cells are enriched in the aged liver. These immune cells produce IL-1β and several chemokines, suggesting the possible involvement of age-associated inflammation in the functional decline of VESCs with age.
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Affiliation(s)
- Shota Shimizu
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
- Department of Anatomy, Keio University School of Medicine, Tokyo, Japan
| | - Tomohiro Iba
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
- Department of Physiology, Kanazawa University School of Medicine, Ishikawa, Japan
| | - Hisamichi Naito
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
- Department of Physiology, Kanazawa University School of Medicine, Ishikawa, Japan
| | - Fitriana Nur Rahmawati
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Hirotaka Konishi
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Weizhen Jia
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Fumitaka Muramatsu
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Nobuyuki Takakura
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka, 565-0871, Japan.
- World Premier Institute Immunology Frontier Research Center, Osaka University, Osaka, Japan.
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka, Japan.
- Center for Infectious Disease Education and Research, Osaka University, Osaka, Japan.
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Hong W, Wang B, Zhu Y, Wu J, Qiu L, Ling S, Zhou Z, Dai Y, Zhong Z, Zheng Y. Female germline stem cells: aging and anti-aging. J Ovarian Res 2022; 15:79. [PMID: 35787298 PMCID: PMC9251950 DOI: 10.1186/s13048-022-01011-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/17/2022] [Indexed: 01/17/2023] Open
Abstract
The delay of ovarian aging and the fertility preservation of cancer patients are the eternal themes in the field of reproductive medicine. Acting as the pacemaker of female physiological aging, ovary is also considered as the principle player of cancer, cardiovascular diseases, cerebrovascular diseases, neurodegenerative diseases and etc. However, its aging mechanism and preventive measures are still unclear. Some researchers attempt to activate endogenous ovarian female germline stem cells (FGSCs) to restore ovarian function, as the most promising approach. FGSCs are stem cells in the adult ovaries that can be infinitely self-renewing and have the potential of committed differention. This review aims to elucidate FGSCs aging mechanism from multiple perspectives such as niches, immune disorder, chronic inflammation and oxidative stress. Therefore, the rebuilding nichs of FGSCs, regulation of immune dysfunction, anti-inflammation and oxidative stress remission are expected to restore or replenish FGSCs, ultimately to delay ovarian aging.
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Affiliation(s)
- Wenli Hong
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China.,Shenzhen University Health Science Center, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Baofeng Wang
- ARTcenter, Shenzhen Hengsheng Hospital, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Yasha Zhu
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Jun'e Wu
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Li Qiu
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Shuyi Ling
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Ziqiong Zhou
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Yuqing Dai
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China
| | - Zhisheng Zhong
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China.
| | - Yuehui Zheng
- Reproductive Health Department, Shenzhen Traditional Chinese Medicine Hospital, the Fourth Clinical Medical College of Guangzhou University of Traditional Chinese Medicine, Shenzhen, Guangdong, 518000, People's Republic of China.
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Abstract
In the last few decades, stem cell-based therapies have gained attention worldwide for various diseases and disorders. Adult stem cells, particularly mesenchymal stem cells (MSCs), are preferred due to their significant regenerative potential in cellular therapies and are currently involved in hundreds of clinical trials. Although MSCs have high self-renewal as well as differentiation potential, such abilities are compromised with “advanced age” and “disease status” of the donor. Similarly, cell-based therapies require high cell number for clinical applications that often require in vitro expansion of cells. It is pertinent to note that aged individuals are the main segment of population for stem cell-based therapies, however; autologous use of stem cells for such patients (aged and diseased) does not seem to give optimal results due to their compromised potential. In vitro expansion to obtain large numbers of cells also negatively affects the regenerative potential of MSCs. It is therefore essential to improve the regenerative potential of stem cells compromised due to “in vitro expansion”, “donor age” and “donor disease status” for their successful autologous use. The current review has been organized to address the age and disease depleted function of resident adult stem cells, and the strategies to improve their potential. To combat the problem of decline in the regenerative potential of cells, this review focuses on the strategies that manipulate the cell environment such as hypoxia, heat shock, caloric restriction and preconditioning with different factors.
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Affiliation(s)
- Mahmood S Choudhery
- Department of Biomedical Sciences, King Edward Medical University, Lahore 54000, Punjab, Pakistan
- Department of Genetics and Molecular Biology, University of Health Sciences, Lahore 54600, Punjab, Pakistan
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Takamatsu K, Tanaka J, Katada R, Azuma K, Takakura I, Aota K, Kamatani T, Shirota T, Inoue S, Mishima K. Aging-associated stem/progenitor cell dysfunction in the salivary glands of mice. Exp Cell Res 2021; 409:112889. [PMID: 34678306 DOI: 10.1016/j.yexcr.2021.112889] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/15/2021] [Accepted: 10/18/2021] [Indexed: 11/25/2022]
Abstract
Although stem cell aging leads to a decline in tissue homeostasis and regenerative capacity, it remains unclear whether salivary gland stem cell function changes during this process. However, the salivary glands are gradually replaced by connective tissue during aging. Here, we show a decline in the stem cell ability of CD133-positive stem/progenitor cells in the salivary glands of aged mice. The CD133-positive cells were isolated from young, adult, and aged mice. The number of CD133-positive cells was significantly decreased in aged mice. They also showed a lower sphere formation capacity compared to young and adult mice. RNA sequencing revealed that CD133-positive cells in aged mice exhibited lower gene expression of several aging-related genes, including FoxO3a, than those in young and adult mice. Salivary gland cells infected with a recombinant lentivirus encoding the FoxO3a gene showed a reduction in oxidative stress induced by hydrogen peroxide compared with those infected with a control virus. Thus, FoxO3a may inhibit stem cell aging via oxidative stress.
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Affiliation(s)
- Koki Takamatsu
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Junichi Tanaka
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan
| | - Ryogo Katada
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan; Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan
| | - Kotaro Azuma
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Ikuko Takakura
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan; Department of Dentistry, Jikei University School of Medicine, Tokyo, Japan
| | - Keiko Aota
- Department of Oral Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Takaaki Kamatani
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan
| | - Tatsuo Shirota
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Showa University, Tokyo, Japan
| | - Satoshi Inoue
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan; Division of Gene Regulation and Signal Transduction, Research Center of Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, School of Dentistry, Showa University, Tokyo, Japan.
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Mu WC, Ohkubo R, Widjaja A, Chen D. The mitochondrial metabolic checkpoint in stem cell aging and rejuvenation. Mech Ageing Dev 2020; 188:111254. [PMID: 32343979 DOI: 10.1016/j.mad.2020.111254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 04/16/2020] [Accepted: 04/18/2020] [Indexed: 02/08/2023]
Abstract
Stem cell aging contributes to aging-associated tissue degeneration and dysfunction. Recent studies reveal a mitochondrial metabolic checkpoint that regulates stem cell quiescence and maintenance, and dysregulation of the checkpoint leads to functional deterioration of aged stem cells. Here, we present the evidence supporting the mitochondrial metabolic checkpoint regulating stem cell aging and demonstrating the feasibility to target this checkpoint to reverse stem cell aging. We discuss the mechanisms by which mitochondrial stress leads to stem cell deterioration. We speculate the therapeutic potential of targeting the mitochondrial metabolic checkpoint for rejuvenating aged stem cells and improving aging tissue functions.
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Affiliation(s)
- Wei-Chieh Mu
- Program in Metabolic Biology, Nutritional Sciences & Toxicology, University of California, Berkeley, CA 94720, USA
| | - Rika Ohkubo
- Program in Metabolic Biology, Nutritional Sciences & Toxicology, University of California, Berkeley, CA 94720, USA
| | - Andrew Widjaja
- Program in Metabolic Biology, Nutritional Sciences & Toxicology, University of California, Berkeley, CA 94720, USA
| | - Danica Chen
- Program in Metabolic Biology, Nutritional Sciences & Toxicology, University of California, Berkeley, CA 94720, USA.
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6
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Wang MJ, Chen J, Chen F, Liu Q, Sun Y, Yan C, Yang T, Bao Y, Hu YP. Rejuvenating Strategies of Tissue-specific Stem Cells for Healthy Aging. Aging Dis 2019; 10:871-882. [PMID: 31440391 PMCID: PMC6675530 DOI: 10.14336/ad.2018.1119] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 11/19/2018] [Indexed: 12/22/2022] Open
Abstract
Although aging is a physiological process, it has raised interest in the science of aging and rejuvenation because of the increasing burden on the rapidly aging global population. With advanced age, there is a decline in homeostatic maintenance and regenerative responsiveness to the injury of various tissues, thereby contributing to the incidence of age-related diseases. The primary cause of the functional declines that occur along with aging is considered to be the exhaustion of stem cell functions in their corresponding tissues. Age-related changes in the systemic environment, the niche, and stem cells contribute to this loss. Thus, the reversal of stem cell aging at the cellular level might lead to the rejuvenation of the animal at an organismic level and the prevention of aging, which would be critical for developing new therapies for age-related dysfunction and diseases. Here, we will explore the effects of aging on stem cells in different tissues. The focus of this discussion is on pro-youth interventions that target intrinsic stem cell properties, environmental niche component, systemic factors, and senescent cellular clearance, which are promising for developing strategies related to the reversal of aged stem cell function and optimizing tissue repair processes.
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Affiliation(s)
- Min-Jun Wang
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Jiajia Chen
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Fei Chen
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Qinggui Liu
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Yu Sun
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Chen Yan
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Tao Yang
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
| | - Yiwen Bao
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China.,2Department of Diagnostic radiology, University of Hong Kong, Hong Kong 999077, China
| | - Yi-Ping Hu
- 1Department of Cell Biology, Center for Stem Cell and Medicine, Second Military Medical University, Shanghai 200433, China
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7
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Bi S, Wang H, Kuang W. Stem cell rejuvenation and the role of autophagy in age retardation by caloric restriction: An update. Mech Ageing Dev 2018; 175:46-54. [PMID: 30031008 DOI: 10.1016/j.mad.2018.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 07/17/2018] [Accepted: 07/17/2018] [Indexed: 12/14/2022]
Abstract
Stem cells being pluripotent in nature can differentiate into a wide array of specific cells and asymmetrically divide to produce new ones but may undergo aging by themselves. Aging has both quantitative and qualitative effects on stem cells, and could eventually restrain them from replenishing into progenitor cells. Reactive oxygen species (ROS) accumulated in the aging cells could not only block the cell cycle but also affect autophagy by damaging the mitochondria. Autophagy could eliminate redundant production of ROS in aging stem cells and helps to maintain the proliferation capacity by restraining the expression of p16INK4a. Current studies showed that improving autophagy could restore the regenerative ability of aging stem cells. Therefore, it is important for an organism to maintain the appropriate autophagy. Caloric restriction (CR) was shown to retard the stem cell aging by a certain basic level of autophagy, suggesting that CR was an effective way to extend longevity in mammals. However, little is known about the underlying mechanisms. In this review, we tried to explore the molecular mechanisms on how CR induces appropriate autophagy to restore aging stem cell regenerative ability.
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Affiliation(s)
- Shanrong Bi
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hanyu Wang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Weihong Kuang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, China.
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Watanabe K, Ikuno Y, Kakeya Y, Kito H, Matsubara A, Kaneda M, Katsuyama Y, Naka-Kaneda H. Functional similarities of microRNAs across different types of tissue stem cells in aging. Inflamm Regen 2018; 38:9. [PMID: 29991971 PMCID: PMC5989452 DOI: 10.1186/s41232-018-0066-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/06/2018] [Indexed: 01/01/2023] Open
Abstract
Restoration of tissue homeostasis by controlling stem cell aging is a promising therapeutic approach for geriatric disorders. The molecular mechanisms underlying age-related dysfunctions of specific types of adult tissue stem cells (TSCs) have been studied, and various microRNAs were recently reported to be involved. However, the central roles of microRNAs in stem cell aging remain unclear. Interest in this area was sparked by murine heterochronic parabiosis experiments, which demonstrated that systemic factors can restore the functions of TSCs. Age-related changes in secretion profiles, termed the senescence-associated secretory phenotype, have attracted attention, and several pro- and anti-aging factors have been identified. On the other hand, many microRNAs are linked with the age-dependent dysregulations of various physiological processes, including “stem cell aging.” This review summarizes microRNAs that appear to play common roles in stem cell aging.
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Affiliation(s)
- Koichiro Watanabe
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Yasuaki Ikuno
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Yumi Kakeya
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Hirotaka Kito
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Aoi Matsubara
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Mizuki Kaneda
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Yu Katsuyama
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Hayato Naka-Kaneda
- Department of Anatomy, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
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Abstract
The effect of aging process on stem cell function is crucial because of their critical role in tissue regeneration and repair. The impact of aging on stem cells needs to be understood clearly for the success of clinical application and obtaining desired therapeutic outcome throughout the novel stem cell based therapies. The existing methods used to monitor and characterize the stem cells have some unwanted effects on the properties of stem cells and these methods also do not provide real-time information about cellular conditions. These challenges enforce the usage of nondestructive, rapid, sensitive, high-quality, label-free, cheep, and innovative chemical monitoring methods. In this context, vibrational spectroscopy provides promising alternative to get new information into the field of stem cell biology for chemical analysis, quantification, and imaging of stem cells. Infrared spectroscopy and imaging coupled with chemometric methods can be used as novel and complimentary methods to obtain new insight into stem cell studies for future therapeutic and regenerative medicine.
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Affiliation(s)
- Ceren Aksoy
- Research Coordination Department, Middle East Technical University, Ankara, Turkey
| | - Feride Severcan
- Department of Biophysics, Altınbaş University School of Medicine, İstanbul, Turkey.
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey.
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Nakamura T, Hosoyama T, Murakami J, Samura M, Ueno K, Kurazumi H, Suzuki R, Mikamo A, Hamano K. Age-related increase in Wnt inhibitor causes a senescence-like phenotype in human cardiac stem cells. Biochem Biophys Res Commun 2017; 487:653-659. [PMID: 28435069 DOI: 10.1016/j.bbrc.2017.04.110] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 04/20/2017] [Indexed: 12/12/2022]
Abstract
Aging of cardiac stem/progenitor cells (CSCs) impairs heart regeneration and leads to unsatisfactory outcomes of cell-based therapies. As the precise mechanisms underlying CSC aging remain unclear, the use of therapeutic strategies for elderly patients with heart failure is severely delayed. In this study, we used human cardiosphere-derived cells (CDCs), a subtype of CSC found in the postnatal heart, to identify secreted factor(s) associated with CSC aging. Human CDCs were isolated from heart failure patients of various ages (2-83 years old). Gene expression of key soluble factors was compared between CDCs derived from young and elderly patients. Among these factors, SFRP1, a gene encoding a Wnt antagonist, was significantly up-regulated in CDCs from elderly patients (≥65 years old). sFRP1 levels was increased significantly also in CDCs, whose senescent phenotype was induced by anti-cancer drug treatment. These results suggest the participation of sFRP1 in CSC aging. We show that the administration of recombinant sFRP1 induced cellular senescence in CDCs derived from young patients, as indicated by increased levels of markers such as p16, and a senescence-associated secretory phenotype. In addition, co-administration of recombinant sFRP1 could abrogate the accelerated CDC proliferation induced by Wnt3A. Taken together, our results suggest that canonical Wnt signaling and its antagonist, sFRP1, regulate proliferation of human CSCs. Furthermore, excess sFRP1 in elderly patients causes CSC aging.
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Affiliation(s)
- Tamami Nakamura
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
| | - Tohru Hosoyama
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan; Regenerative Medicine Institute, Yamaguchi University Graduate School of Medicine, Japan.
| | - Junichi Murakami
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
| | - Makoto Samura
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
| | - Koji Ueno
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
| | - Hiroshi Kurazumi
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan; Department of Surgery, Saiseikai Yamaguchi Hospital, Japan
| | - Ryo Suzuki
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
| | - Akihito Mikamo
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
| | - Kimikazu Hamano
- Department Surgery and Clinical Science, Yamaguchi University Graduate School of Medicine, Japan
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11
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Wu RX, Bi CS, Yu Y, Zhang LL, Chen FM. Age-related decline in the matrix contents and functional properties of human periodontal ligament stem cell sheets. Acta Biomater 2015; 22:70-82. [PMID: 25922305 DOI: 10.1016/j.actbio.2015.04.024] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 04/16/2015] [Accepted: 04/19/2015] [Indexed: 02/08/2023]
Abstract
In this study, periodontal ligament (PDL) stem cells (PDLSCs) derived from different-aged donors were used to evaluate the effect of aging on cell sheet formation. The activity of PDLSCs was first determined based on their colony-forming ability, surface markers, proliferative/differentiative potentials, senescence-associated β-galactosidase (SA-βG) staining, and expression of pluripotency-associated transcription factors. The ability of these cells to form sheets, based on their extracellular matrix (ECM) contents and their functional properties necessary for osteogenic differentiation, was evaluated to predict the age-related changes in the regenerative capacity of the cell sheets in their further application. It was found that human PDLSCs could be isolated from the PDL tissue of different-aged subjects. However, the ability of the PDLSCs to proliferate and to undergo osteogenic differentiation and their expression of pluripotency-associated transcription factors displayed age-related decreases. In addition, these cells exhibited an age-related increase in SA-βG expression. Aged cells showed an impaired ability to form functional cell sheets, as determined by morphological observations and Ki-67 immunohistochemistry staining. Based on the production of ECM proteins, such as fibronectin, integrin β1, and collagen type I; alkaline phosphatase (ALP) activity; and the expression of osteogenic genes, such as ALP, Runt-related transcription factor 2, and osteocalcin, cell sheets formed by PDLSCs derived from older donors demonstrated a less potent osteogenic capacity compared to those formed by PDLSCs from younger donors. Our data suggest that the age-associated decline in the matrix contents and osteogenic properties of PDLSC sheets should be taken into account in cell sheet engineering research and clinical periodontal regenerative therapy.
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