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Lin D, Yan K, Chen L, Chen J, Xu J, Xie Z, Li Z, Lin S, Li J, Chen Z. Hypoxia-induced reprogramming of glucose-dependent metabolic pathways maintains the stemness of human bone marrow-derived endothelial progenitor cells. Sci Rep 2023; 13:8776. [PMID: 37258701 DOI: 10.1038/s41598-023-36007-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 05/27/2023] [Indexed: 06/02/2023] Open
Abstract
The benefits of hypoxia for maintaining the stemness of cultured human bone marrow-derived endothelial progenitor cells (BM EPCs) have previously been demonstrated but the mechanisms responsible remain unclear. Growing evidences suggest that cellular metabolism plays an important role in regulating stem cell fate and self-renewal. Here we aimed to detect the changes of glucose metabolism and to explore its role on maintaining the stemness of BM EPCs under hypoxia. We identified the metabolic status of BM EPCs by using extracellular flux analysis, LC-MS/MS, and 13C tracing HPLC-QE-MS, and found that hypoxia induced glucose metabolic reprogramming, which manifested as increased glycolysis and pentose phosphate pathway (PPP), decreased tricarboxylic acid (TCA) and mitochondrial respiration. We further pharmacologically altered the metabolic status of cells by employing various of inhibitors of key enzymes of glycolysis, PPP, TCA cycle and mitochondria electron transport chain (ETC). We found that inhibiting glycolysis or PPP impaired cell proliferation either under normoxia or hypoxia. On the contrary, inhibiting pyruvate oxidation, TCA or ETC promoted cell proliferation under normoxia mimicking hypoxic conditions. Moreover, promoting pyruvate oxidation reverses the maintenance effect of hypoxia on cell stemness. Taken together, our data suggest that hypoxia induced glucose metabolic reprogramming maintains the stemness of BM EPCs, and artificial manipulation of cell metabolism can be an effective way for regulating the stemness of BM EPCs, thereby improving the efficiency of cell expansion in vitro.
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Affiliation(s)
- Dongni Lin
- The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Department of Neurosurgery, The National Key Clinical Specialty, Zhujiang Hospital, Southern Medical University, 253# Gongye RD, Guangzhou, 510282, China
| | - Kaihao Yan
- The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Department of Neurosurgery, The National Key Clinical Specialty, Zhujiang Hospital, Southern Medical University, 253# Gongye RD, Guangzhou, 510282, China
| | - Lingyun Chen
- Hygiene Detection Center, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, 510515, China
| | - Junxiong Chen
- The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Department of Neurosurgery, The National Key Clinical Specialty, Zhujiang Hospital, Southern Medical University, 253# Gongye RD, Guangzhou, 510282, China
| | - Jianing Xu
- The Second School of Clinical Medicine, Undergraduate Innovation and Entrepreneurship Project, Southern Medical University, 253 Gongye Road, Guangzhou, 510282, China
| | - Zijing Xie
- The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Department of Neurosurgery, The National Key Clinical Specialty, Zhujiang Hospital, Southern Medical University, 253# Gongye RD, Guangzhou, 510282, China
| | - Zhujun Li
- The Second School of Clinical Medicine, Undergraduate Innovation and Entrepreneurship Project, Southern Medical University, 253 Gongye Road, Guangzhou, 510282, China
| | - Shuo Lin
- The Second School of Clinical Medicine, Undergraduate Innovation and Entrepreneurship Project, Southern Medical University, 253 Gongye Road, Guangzhou, 510282, China
| | - Jinghuan Li
- The Second School of Clinical Medicine, Undergraduate Innovation and Entrepreneurship Project, Southern Medical University, 253 Gongye Road, Guangzhou, 510282, China
| | - Zhenzhou Chen
- The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Department of Neurosurgery, The National Key Clinical Specialty, Zhujiang Hospital, Southern Medical University, 253# Gongye RD, Guangzhou, 510282, China.
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van Rhijn-Brouwer FCCC, Gremmels H, den Ouden K, Teraa M, Fledderus JO, Verhaar MC. Human bone marrow mononuclear cells do not improve limb perfusion in the hindlimb ischemia model. Stem Cells Dev 2022; 31:176-180. [PMID: 35152731 PMCID: PMC9057881 DOI: 10.1089/scd.2021.0261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Hendrik Gremmels
- University Medical Center Utrecht, Department of Nephrology & Hypertension, Regenerative Medicine Center Utrecht, Utrecht, Netherlands
| | - Krista den Ouden
- University Medical Center Utrecht, Department of Nephrology & Hypertension, Regenerative Medicine Center Utrecht, Utrecht, Netherlands
| | - Martin Teraa
- University Medical Center Utrecht, Department of Nephrology & Hypertension, Regenerative Medicine Center Utrecht, Utrecht, Netherlands
- University Medical Center Utrecht, Department of Vascular Surgery, Utrecht, Netherlands
| | - Joost Ougust Fledderus
- University Medical Center Utrecht, Department of Nephrology & Hypertension, Regenerative Medicine Center Utrecht, Utrecht, Netherlands
| | - Marianne Christina Verhaar
- University Medical Center Utrecht, Department of Nephrology & Hypertension, Regenerative Medicine Center Utrecht, Utrecht, Netherlands
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Yuko AE, Carvalho Rigaud VO, Kurian J, Lee JH, Kasatkin N, Behanan M, Wang T, Luchesse AM, Mohsin S, Koch WJ, Wang H, Khan M. LIN28a induced metabolic and redox regulation promotes cardiac cell survival in the heart after ischemic injury. Redox Biol 2021; 47:102162. [PMID: 34628272 PMCID: PMC8515487 DOI: 10.1016/j.redox.2021.102162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/04/2021] [Accepted: 10/07/2021] [Indexed: 12/28/2022] Open
Abstract
RATIONALE Cell-based therapeutics have been extensively used for cardiac repair yet underperform due to inability of the donated cells to survive in near anoxia after cardiac injury. Cellular metabolism is linked to maintenance of cardiac stem cell (CSC) renewal, proliferation and survival. Ex vivo expansion alters (CSC) metabolism increasing reliance on oxygen dependent respiration. Whether promoting 'metabolic flexibility' in CSCs augments their ability to survive in near anoxia and repair the heart after injury remains untested. OBJECTIVE Determine the effect of LIN28a induced metabolic flexibility on cardiac tissue derived stem like cell (CTSC) survival and repair after cardiac injury. METHODS AND RESULTS LIN28a expression coincides during heart development but is lost in adult CTSCs. Reintroduction of LIN28a in adult CTSC (CTSC-LIN) increased proliferation, survival, expression of pluripotency genes and reduced senescence compared to control (CTSC-GFP). Metabolomic analysis show glycolytic intermediates upregulated in CTSC-LIN together with increased lactate production, pyruvate kinase activity, glucose uptake, ECAR and expression of glycolytic enzymes compared to CTSC-GFP. Additionally, CTSC-LIN showed significantly reduced ROS generation and increase antioxidant markers. In response to H2O2 induced oxidative stress, CTSC-LIN showed increased survival and expression of glycolytic genes. LIN28a salutary effects on CTSCs were linked to PDK1/let-7 signaling pathway with loss of PDK1 or alteration of let-7 abrogating LIN28a effects. Following transplantation in the heart after myocardial infarction (MI), CTSC-LIN showed 6% survival rate at day 7 after injection compared to control cells together with increased proliferation and significant increase in cardiac structure and function 8 weeks after MI. Finally, CSTC-LIN showed enhanced ability to secrete paracrine factors under hypoxic conditions and ability to promote cardiomyocyte proliferation following ischemic cardiac injury. CONCLUSIONS LIN28a modification promotes metabolic flexibility in CTSCs enhancing proliferation and survival post transplantation including ability to repair the heart after myocardial injury.
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Affiliation(s)
| | | | | | - Ji H Lee
- Center for Metabolic Disease Research (CMDR), USA
| | | | | | - Tao Wang
- Cardiovascular Research Institute (CVRC), USA
| | | | - Sadia Mohsin
- Cardiovascular Research Institute (CVRC), USA; Department of Pharmacology, LKSOM, Temple University, LKSOM, Temple University, USA
| | - Walter J Koch
- Center for Translational Medicine (CTM), LKSOM, Temple University, USA
| | - Hong Wang
- Center for Metabolic Disease Research (CMDR), USA
| | - Mohsin Khan
- Center for Metabolic Disease Research (CMDR), USA; Department of Physiology, LKSOM, Temple University, USA.
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Kurian J, Bohl V, Behanan M, Mohsin S, Khan M. Transcriptional Profiling of Cardiac Cells Links Age-Dependent Changes in Acetyl-CoA Signaling to Chromatin Modifications. Int J Mol Sci 2021; 22:ijms22136987. [PMID: 34209657 PMCID: PMC8268808 DOI: 10.3390/ijms22136987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 12/21/2022] Open
Abstract
Metabolism has emerged as a regulator of core stem cell properties such as proliferation, survival, self-renewal, and multilineage potential. Metabolites serve as secondary messengers, fine-tuning signaling pathways in response to microenvironment alterations. Studies show a role for central metabolite acetyl-CoA in the regulation of chromatin state through changes in histone acetylation. Nevertheless, metabolic regulators of chromatin remodeling in cardiac cells in response to increasing biological age remains unknown. Previously, we identified novel cardiac-derived stem-like cells (CTSCs) that exhibit increased functional properties in the neonatal heart (nCTSC). These cells are linked to a unique metabolism which is altered with CTSC aging (aCTSC). Here, we present an in-depth, RNA-sequencing-based (RNA-Seq) bioinformatic with cluster analysis that details a distinct epigenome present in nCTSCs but not in aCTSCs. Gene Ontology (GO) and pathway enrichment reveal biological processes, including metabolism, gene regulation enriched in nCTSCs, and STRING analysis that identifies a network of genes related to acetyl-CoA that can potentially influence chromatin remodeling. Additional validation by Western blot and qRT-PCR shows increased acetyl-CoA signaling and histone acetylation in nCTSCs compared to aCTSCs. In conclusion, our data reveal that the link between metabolism and histone acetylation in cardiac cells is altered with the aging of the cardiac tissue.
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Affiliation(s)
- Justin Kurian
- Center for Metabolic Disease Research (CMDR), LKSOM, Temple University, Philadelphia, PA 19140, USA; (J.K.); (V.B.); (M.B.)
| | - Veronica Bohl
- Center for Metabolic Disease Research (CMDR), LKSOM, Temple University, Philadelphia, PA 19140, USA; (J.K.); (V.B.); (M.B.)
| | - Michael Behanan
- Center for Metabolic Disease Research (CMDR), LKSOM, Temple University, Philadelphia, PA 19140, USA; (J.K.); (V.B.); (M.B.)
| | - Sadia Mohsin
- Cardiovascular Research Center (CVRC), LKSOM, Temple University, Philadelphia, PA 19140, USA;
| | - Mohsin Khan
- Center for Metabolic Disease Research (CMDR), LKSOM, Temple University, Philadelphia, PA 19140, USA; (J.K.); (V.B.); (M.B.)
- Department of Physiology, LKSOM, Temple University, Philadelphia, PA 19140, USA
- Correspondence: ; Tel.: +1-215-707-1921
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Stem Cell Metabolism: Powering Cell-Based Therapeutics. Cells 2020; 9:cells9112490. [PMID: 33207756 PMCID: PMC7696341 DOI: 10.3390/cells9112490] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/11/2020] [Accepted: 11/12/2020] [Indexed: 02/06/2023] Open
Abstract
Cell-based therapeutics for cardiac repair have been extensively used during the last decade. Preclinical studies have demonstrated the effectiveness of adoptively transferred stem cells for enhancement of cardiac function. Nevertheless, several cell-based clinical trials have provided largely underwhelming outcomes. A major limitation is the lack of survival in the harsh cardiac milieu as only less than 1% donated cells survive. Recent efforts have focused on enhancing cell-based therapeutics and understanding the biology of stem cells and their response to environmental changes. Stem cell metabolism has recently emerged as a critical determinant of cellular processes and is uniquely adapted to support proliferation, stemness, and commitment. Metabolic signaling pathways are remarkably sensitive to different environmental signals with a profound effect on cell survival after adoptive transfer. Stem cells mainly generate energy through glycolysis while maintaining low oxidative phosphorylation (OxPhos), providing metabolites for biosynthesis of macromolecules. During commitment, there is a shift in cellular metabolism, which alters cell function. Reprogramming stem cell metabolism may represent an attractive strategy to enhance stem cell therapy for cardiac repair. This review summarizes the current literature on how metabolism drives stem cell function and how this knowledge can be applied to improve cell-based therapeutics for cardiac repair.
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Kurian J, Yuko AE, Kasatkin N, Rigaud VOC, Busch K, Harlamova D, Wagner M, Recchia FA, Wang H, Mohsin S, Houser SR, Khan M. Uncoupling protein 2-mediated metabolic adaptations define cardiac cell function in the heart during transition from young to old age. Stem Cells Transl Med 2020; 10:144-156. [PMID: 32964621 PMCID: PMC7780806 DOI: 10.1002/sctm.20-0123] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/20/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022] Open
Abstract
Cellular replacement in the heart is restricted to postnatal stages with the adult heart largely postmitotic. Studies show that loss of regenerative properties in cardiac cells seems to coincide with alterations in metabolism during postnatal development and maturation. Nevertheless, whether changes in cellular metabolism are linked to functional alternations in cardiac cells is not well studied. We report here a novel role for uncoupling protein 2 (UCP2) in regulation of functional properties in cardiac tissue derived stem‐like cells (CTSCs). CTSC were isolated from C57BL/6 mice aged 2 days (nCTSC), 2 month (CTSC), and 2 years old (aCTSC), subjected to bulk‐RNA sequencing that identifies unique transcriptome significantly different between CTSC populations from young and old heart. Moreover, results show that UCP2 is highly expressed in CTSCs from the neonatal heart and is linked to maintenance of glycolysis, proliferation, and survival. With age, UCP2 is reduced shifting energy metabolism to oxidative phosphorylation inversely affecting cellular proliferation and survival in aged CTSCs. Loss of UCP2 in neonatal CTSCs reduces extracellular acidification rate and glycolysis together with reduced cellular proliferation and survival. Mechanistically, UCP2 silencing is linked to significant alteration of mitochondrial genes together with cell cycle and survival signaling pathways as identified by RNA‐sequencing and STRING bioinformatic analysis. Hence, our study shows UCP2‐mediated metabolic profile regulates functional properties of cardiac cells during transition from neonatal to aging cardiac states.
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Affiliation(s)
- Justin Kurian
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Antonia E Yuko
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Nicole Kasatkin
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Vagner O C Rigaud
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Kelsey Busch
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Daria Harlamova
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Marcus Wagner
- Cardiovascular Research Institute (CVRC), Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Fabio A Recchia
- Cardiovascular Research Institute (CVRC), Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA.,Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy.,Fondazione Toscana Gabriele Monasterio, Pisa, Italy
| | - Hong Wang
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Sadia Mohsin
- Cardiovascular Research Institute (CVRC), Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Steven R Houser
- Cardiovascular Research Institute (CVRC), Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA.,Department of Physiology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
| | - Mohsin Khan
- Center for Metabolic Disease Research, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA.,Department of Physiology, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania, USA
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