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Zhang J, Sjøberg KA, Gong S, Wang T, Li F, Kuo A, Durot S, Majcher A, Ardicoglu R, Desgeorges T, Mann CG, Soro Arnáiz I, Fitzgerald G, Gilardoni P, Abel ED, Kon S, Olivares-Villagómez D, Zamboni N, Wolfrum C, Hornemann T, Morscher R, Tisch N, Ghesquière B, Kopf M, Richter EA, De Bock K. Endothelial metabolic control of insulin sensitivity through resident macrophages. Cell Metab 2024:S1550-4131(24)00335-8. [PMID: 39270655 DOI: 10.1016/j.cmet.2024.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 07/30/2024] [Accepted: 08/15/2024] [Indexed: 09/15/2024]
Abstract
Endothelial cells (ECs) not only form passive blood conduits but actively contribute to nutrient transport and organ homeostasis. The role of ECs in glucose homeostasis is, however, poorly understood. Here, we show that, in skeletal muscle, endothelial glucose transporter 1 (Glut1/Slc2a1) controls glucose uptake via vascular metabolic control of muscle-resident macrophages without affecting transendothelial glucose transport. Lowering endothelial Glut1 via genetic depletion (Glut1ΔEC) or upon a short-term high-fat diet increased angiocrine osteopontin (OPN/Spp1) secretion. This promoted resident muscle macrophage activation and proliferation, which impaired muscle insulin sensitivity. Consequently, co-deleting Spp1 from ECs prevented macrophage accumulation and improved insulin sensitivity in Glut1ΔEC mice. Mechanistically, Glut1-dependent endothelial glucose metabolic rewiring increased OPN in a serine metabolism-dependent fashion. Our data illustrate how the glycolytic endothelium creates a microenvironment that controls resident muscle macrophage phenotype and function and directly links resident muscle macrophages to the maintenance of muscle glucose homeostasis.
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Affiliation(s)
- Jing Zhang
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Kim Anker Sjøberg
- August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Songlin Gong
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Tongtong Wang
- Laboratory of Translational Nutritional Biology, Department Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zürich, 8603 Zürich, Switzerland
| | - Fengqi Li
- Institute of Molecular Health Sciences, ETH Zürich, Zürich, Switzerland; Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China; Key Laboratory of Immune Response and Immunotherapy, Hefei, China
| | - Andrew Kuo
- Vascular Biology Program, Boston Children's Hospital, Department of Surgery, Harvard Medical School, Boston, MA, USA
| | - Stephan Durot
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | - Adam Majcher
- Center for Integrative Human Physiology, University of Zürich, Zürich, Switzerland; Institute for Clinical Chemistry, University Hospital, Zürich, Switzerland
| | - Raphaela Ardicoglu
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland; Laboratory of Molecular and Behavioral Neuroscience, Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Thibaut Desgeorges
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Charlotte Greta Mann
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Ines Soro Arnáiz
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Gillian Fitzgerald
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Paola Gilardoni
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - E Dale Abel
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Shigeyuki Kon
- Department of Molecular Immunology, Faculty of Pharmaceutical Sciences, Fukuyama University, Fukuyama, Japan
| | - Danyvid Olivares-Villagómez
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Nicola Zamboni
- Institute of Molecular Systems Biology, ETH Zürich, Zürich, Switzerland
| | - Christian Wolfrum
- Laboratory of Translational Nutritional Biology, Department Health Sciences and Technology, Swiss Federal Institute of Technology (ETH) Zürich, 8603 Zürich, Switzerland
| | - Thorsten Hornemann
- Center for Integrative Human Physiology, University of Zürich, Zürich, Switzerland; Institute for Clinical Chemistry, University Hospital, Zürich, Switzerland
| | - Raphael Morscher
- Pediatric Cancer Metabolism Laboratory, Children`s Research Center, University of Zürich, 8032 Zürich, Switzerland
| | - Nathalie Tisch
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland
| | - Bart Ghesquière
- Metabolomics Core Facility Leuven, Center for Cancer Biology, VIB, Leuven, Belgium; Laboratory of Applied Mass Spectrometry, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Manfred Kopf
- Institute of Molecular Health Sciences, ETH Zürich, Zürich, Switzerland
| | - Erik A Richter
- August Krogh Section for Molecular Physiology, Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Copenhagen, Denmark
| | - Katrien De Bock
- Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland.
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Liu Z. Gene expression profile of human placental villous pericytes in the first trimester - An analysis by single-cell RNA sequencing. Reprod Biol 2024; 24:100919. [PMID: 38941941 DOI: 10.1016/j.repbio.2024.100919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/14/2024] [Accepted: 06/17/2024] [Indexed: 06/30/2024]
Abstract
Mesenchymal cells within theplacental villi play a crucial role in shaping the morphology of branching structures and driving the development of blood vessels. However, the markers and functions of placental villous pericytes (PVPs) as distinct subgroups of placental villous mesenchymal cells, remain unclear. Therefore, in this study, the markers and functions of PVPs were investigated. Single-cell sequencing data from the first-trimester placental villi was obtained and the Seurat tool was used to identify PVP markers. Gene Ontology (GO) analysis of specific genes was performed using the DAVID database. The Cellchat tool was employed to investigate the interaction signals between the PVPs and other cells. Expression of the PVP markers was confirmed using immunofluorescence. Presence of extracellular vesicles in the placental villous mesenchyme and PVPs was examined by transmission electron microscopy. Our findings revealed that renin (REN) and amphiregulin (AREG)-positive fibroblasts in the placental villi specifically expressed several classic pericyte markers. In the first trimester, certain conserved functions of pericytes were observed and they displayed tissue-specific functions such as in the integrin-mediated signaling pathway and extracellular exosomes. Moreover, the placental villous mesenchyme was found to be rich in extracellular vesicles. AREG is specifically transcribed in the first trimester PVPs, however, its protein was located in syncytiotrophoblasts. These insights contribute to a comprehensive understanding of early placental development and offer new therapeutic targets for placenta-derived pregnancy complications.
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Affiliation(s)
- Zhao Liu
- Department of Medical Genetics, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China.
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3
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Fazio A, Neri I, Koufi FD, Marvi MV, Galvani A, Evangelisti C, McCubrey JA, Cocco L, Manzoli L, Ratti S. Signaling Role of Pericytes in Vascular Health and Tissue Homeostasis. Int J Mol Sci 2024; 25:6592. [PMID: 38928298 PMCID: PMC11203602 DOI: 10.3390/ijms25126592] [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: 04/30/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
Pericytes are multipotent cells embedded within the vascular system, primarily surrounding capillaries and microvessels where they closely interact with endothelial cells. These cells are known for their intriguing properties due to their heterogeneity in tissue distribution, origin, and multifunctional capabilities. Specifically, pericytes are essential in regulating blood flow, promoting angiogenesis, and supporting tissue homeostasis and regeneration. These multifaceted roles draw on pericytes' remarkable ability to respond to biochemical cues, interact with neighboring cells, and adapt to changing environmental conditions. This review aims to summarize existing knowledge on pericytes, emphasizing their versatility and involvement in vascular integrity and tissue health. In particular, a comprehensive view of the major signaling pathways, such as PDGFβ/ PDGFRβ, TGF-β, FOXO and VEGF, along with their downstream targets, which coordinate the behavior of pericytes in preserving vascular integrity and promoting tissue regeneration, will be discussed. In this light, a deeper understanding of the complex signaling networks defining the phenotype of pericytes in healthy tissues is crucial for the development of targeted therapies in vascular and degenerative diseases.
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Affiliation(s)
- Antonietta Fazio
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - Irene Neri
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - Foteini-Dionysia Koufi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - Maria Vittoria Marvi
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - Andrea Galvani
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
- Department of Biomolecular Sciences, University of Urbino “Carlo Bo”, 61029 Urbino, Italy
| | - Camilla Evangelisti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - James A. McCubrey
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC 27834, USA;
| | - Lucio Cocco
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - Lucia Manzoli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
| | - Stefano Ratti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (A.F.); (I.N.); (F.-D.K.); (M.V.M.); (A.G.); (C.E.); (L.C.); (L.M.)
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Pilny E, Czapla J, Drzyzga A, Smolarczyk R, Matuszczak S, Jarosz-Biej M, Krakowczyk Ł, Cichoń T. The comparison of adipose-derived stromal cells (ADSCs) delivery method in a murine model of hindlimb ischemia. Stem Cell Res Ther 2024; 15:27. [PMID: 38303049 PMCID: PMC10836003 DOI: 10.1186/s13287-024-03634-2] [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: 10/03/2022] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
BACKGROUND Adipose-derived stromal cells (ADSCs) demonstrate ability to promote tissue healing and down-regulate excessive inflammation. ADSCs have been used to treat critical limb ischemia in preclinical and clinical trials, but still, there is little known about their optimal delivery strategy. To date, no direct analysis of different methods of ADSCs delivery has been performed in the hindlimb ischemia model. Therefore, in this study we focused on the therapeutic efficacy of different ADSCs delivery methods in a murine model of hindlimb ischemia. METHODS For the hADSCs isolation, we used the subcutaneous adipose tissue collected during the surgery. The murine hindlimb ischemia was used as a model. The unilateral femoral artery ligation was performed on 10-12-week-old male C57BL/6. ADSCs were delivered directly into ischemic muscle, into the contralateral muscle or intravenously. 7 and 14 days after the surgery, the gastrocnemius and quadriceps muscles were collected for the immunohistochemical analysis. The results were analyzed with relevant tests using the Statistica software. RESULTS Our research revealed that muscle regeneration, angiogenesis, arteriogenesis and macrophage infiltration in murine model of hindlimb ischemia differ depending on ADSCs delivery method. We have demonstrated that intramuscular method (directly into ischemic limb) of ADSCs delivery is more efficient in functional recovery after critical limb ischemia than intravenous or contralateral route. CONCLUSIONS We have noticed that injection of ADSCs directly into ischemic limb is the optimal delivery strategy because it increases: (1) muscle fiber regeneration, (2) the number of capillaries and (3) the influx of macrophages F4/80+/CD206+.
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Affiliation(s)
- Ewelina Pilny
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Justyna Czapla
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Alina Drzyzga
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Ryszard Smolarczyk
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Sybilla Matuszczak
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Magdalena Jarosz-Biej
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Łukasz Krakowczyk
- Department of Oncologic and Reconstructive Surgery, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland
| | - Tomasz Cichoń
- Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie National Research Institute of Oncology, Gliwice Branch, Wybrzeże Armii Krajowej Street 15, 44-102, Gliwice, Poland.
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Jiang H, Liu B, Lin J, Xue T, Han Y, Lu C, Zhou S, Gu Y, Xu F, Shen Y, Xu L, Sun H. MuSCs and IPCs: roles in skeletal muscle homeostasis, aging and injury. Cell Mol Life Sci 2024; 81:67. [PMID: 38289345 PMCID: PMC10828015 DOI: 10.1007/s00018-023-05096-w] [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: 10/04/2023] [Revised: 12/01/2023] [Accepted: 12/17/2023] [Indexed: 02/01/2024]
Abstract
Skeletal muscle is a highly specialized tissue composed of myofibres that performs crucial functions in movement and metabolism. In response to external stimuli and injuries, a range of stem/progenitor cells, with muscle stem cells or satellite cells (MuSCs) being the predominant cell type, are rapidly activated to repair and regenerate skeletal muscle within weeks. Under normal conditions, MuSCs remain in a quiescent state, but become proliferative and differentiate into new myofibres in response to injury. In addition to MuSCs, some interstitial progenitor cells (IPCs) such as fibro-adipogenic progenitors (FAPs), pericytes, interstitial stem cells expressing PW1 and negative for Pax7 (PICs), muscle side population cells (SPCs), CD133-positive cells and Twist2-positive cells have been identified as playing direct or indirect roles in regenerating muscle tissue. Here, we highlight the heterogeneity, molecular markers, and functional properties of these interstitial progenitor cells, and explore the role of muscle stem/progenitor cells in skeletal muscle homeostasis, aging, and muscle-related diseases. This review provides critical insights for future stem cell therapies aimed at treating muscle-related diseases.
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Affiliation(s)
- Haiyan Jiang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
- Department of Emergency Medicine, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Boya Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Junfei Lin
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Tong Xue
- Department of Paediatrics, Medical School of Nantong University, Nantong University, Nantong, 226001, People's Republic of China
| | - Yimin Han
- Department of Paediatrics, Medical School of Nantong University, Nantong University, Nantong, 226001, People's Republic of China
| | - Chunfeng Lu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People's Hospital of Nantong City, Nantong, 226001, Jiangsu, People's Republic of China
| | - Songlin Zhou
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yun Gu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China
| | - Feng Xu
- Department of Endocrinology, Affiliated Hospital 2 of Nantong University and First People's Hospital of Nantong City, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yuntian Shen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
| | - Lingchi Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
| | - Hualin Sun
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu, People's Republic of China.
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Alvino VV, Mohammed KAK, Gu Y, Madeddu P. Approaches for the isolation and long-term expansion of pericytes from human and animal tissues. Front Cardiovasc Med 2023; 9:1095141. [PMID: 36704463 PMCID: PMC9873410 DOI: 10.3389/fcvm.2022.1095141] [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: 11/10/2022] [Accepted: 12/22/2022] [Indexed: 01/11/2023] Open
Abstract
Pericytes surround capillaries in every organ of the human body. They are also present around the vasa vasorum, the small blood vessels that supply the walls of larger arteries and veins. The clinical interest in pericytes is rapidly growing, with the recognition of their crucial roles in controlling vascular function and possible therapeutic applications in regenerative medicine. Nonetheless, discrepancies in methods used to define, isolate, and expand pericytes are common and may affect reproducibility. Separating pure pericyte preparations from the continuum of perivascular mesenchymal cells is challenging. Moreover, variations in functional behavior and antigenic phenotype in response to environmental stimuli make it difficult to formulate an unequivocal definition of bona fide pericytes. Very few attempts were made to develop pericytes as a clinical-grade product. Therefore, this review is devoted to appraising current methodologies' pros and cons and proposing standardization and harmonization improvements. We highlight the importance of developing upgraded protocols to create therapeutic pericyte products according to the regulatory guidelines for clinical manufacturing. Finally, we describe how integrating RNA-seq techniques with single-cell spatial analysis, and functional assays may help realize the full potential of pericytes in health, disease, and tissue repair.
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Affiliation(s)
| | - Khaled Abdelsattar Kassem Mohammed
- Bristol Heart Institute, University of Bristol, Bristol, United Kingdom
- Department of Cardiothoracic Surgery, Faculty of Medicine, Assiut University, Asyut, Egypt
| | - Yue Gu
- Bristol Heart Institute, University of Bristol, Bristol, United Kingdom
| | - Paolo Madeddu
- Bristol Heart Institute, University of Bristol, Bristol, United Kingdom
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Koike H, Manabe I, Oishi Y. Mechanisms of cooperative cell-cell interactions in skeletal muscle regeneration. Inflamm Regen 2022; 42:48. [DOI: 10.1186/s41232-022-00234-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/08/2022] [Indexed: 11/17/2022] Open
Abstract
AbstractSkeletal muscles have an extraordinary capacity to regenerate themselves when injured. Skeletal muscle stem cells, called satellite cells, play a central role in muscle regeneration via three major steps: activation, proliferation, and differentiation. These steps are affected by multiple types of cells, such as immune cells, fibro-adipogenic progenitor cells, and vascular endothelial cells. The widespread use of single-cell sequencing technologies has enabled the identification of novel cell subpopulations associated with muscle regeneration and their regulatory mechanisms. This review summarizes the dynamism of the cellular community that controls and promotes muscle regeneration, with a particular focus on skeletal muscle stem cells.
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Bohner M, Maazouz Y, Ginebra MP, Habibovic P, Schoenecker JG, Seeherman H, van den Beucken JJ, Witte F. Sustained local ionic homeostatic imbalance caused by calcification modulates inflammation to trigger heterotopic ossification. Acta Biomater 2022; 145:1-24. [PMID: 35398267 DOI: 10.1016/j.actbio.2022.03.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 12/15/2022]
Abstract
Heterotopic ossification (HO) is a condition triggered by an injury leading to the formation of mature lamellar bone in extraskeletal soft tissues. Despite being a frequent complication of orthopedic and trauma surgery, brain and spinal injury, the etiology of HO is poorly understood. The aim of this study is to evaluate the hypothesis that a sustained local ionic homeostatic imbalance (SLIHI) created by mineral formation during tissue calcification modulates inflammation to trigger HO. This evaluation also considers the role SLIHI could play for the design of cell-free, drug-free osteoinductive bone graft substitutes. The evaluation contains five main sections. The first section defines relevant concepts in the context of HO and provides a summary of proposed causes of HO. The second section starts with a detailed analysis of the occurrence and involvement of calcification in HO. It is followed by an explanation of the causes of calcification and its consequences. This allows to speculate on the potential chemical modulators of inflammation and triggers of HO. The end of this second section is devoted to in vitro mineralization tests used to predict the ectopic potential of materials. The third section reviews the biological cascade of events occurring during pathological and material-induced HO, and attempts to propose a quantitative timeline of HO formation. The fourth section looks at potential ways to control HO formation, either acting on SLIHI or on inflammation. Chemical, physical, and drug-based approaches are considered. Finally, the evaluation finishes with a critical assessment of the definition of osteoinduction. STATEMENT OF SIGNIFICANCE: The ability to regenerate bone in a spatially controlled and reproducible manner is an essential prerequisite for the treatment of large bone defects. As such, understanding the mechanism leading to heterotopic ossification (HO), a condition triggered by an injury leading to the formation of mature lamellar bone in extraskeletal soft tissues, would be very useful. Unfortunately, the mechanism(s) behind HO is(are) poorly understood. The present study reviews the literature on HO and based on it, proposes that HO can be caused by a combination of inflammation and calcification. This mechanism helps to better understand current strategies to prevent and treat HO. It also shows new opportunities to improve the treatment of bone defects in orthopedic and dental procedures.
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Kim KM, An HJ, Kim SH, Kim J, Sim C, Lee J, Park SH, Lee HI, Jang I, Lee S. Therapeutic Effect of Pericytes for Diabetic Wound Healing. Front Cardiovasc Med 2022; 9:868600. [PMID: 35647064 PMCID: PMC9135971 DOI: 10.3389/fcvm.2022.868600] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/12/2022] [Indexed: 12/28/2022] Open
Abstract
Objective Numerous attempts have been made to devise treatments for ischemic foot ulcer (IFU), which is one of the most severe and fatal consequences of diabetes mellitus (DM). Pericytes, which are perivascular multipotent cells, are of interest as a treatment option for IFU because they play a critical role in forming and repairing various tissues. In this study, we want to clarify the angiogenic potential of pericytes in DM-induced wounds. Methods We evaluated pericyte stimulation capability for tube formation, angiogenesis, and wound healing (cell migration) in human umbilical vein endothelial cells (HUVECs) with in-vivo and in-vitro models of high glucose conditions. Results When HUVECs were co-cultured with pericytes, their tube-forming capacity and cell migration were enhanced. Our diabetic mouse model showed that pericytes promote wound healing via increased vascularization. Conclusion The findings of this study indicate that pericytes may enhance wound healing in high glucose conditions, consequently making pericyte transplantation suitable for treating IFUs.
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Affiliation(s)
- Kyeong Mi Kim
- Department of Laboratory Medicine, CHA Ilsan Medical Center, CHA University School of Medicine, Goyang-si, South Korea
| | - Hyun-Ju An
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, South Korea
| | - Sang-Hoon Kim
- Department of Cardiology, CHA Bundang Medical Center, CHA University School of Medicine, Gyeonggi-do, South Korea
| | - JuHee Kim
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, South Korea
| | - Changgon Sim
- CHA Graduate School of Medicine, Gyeonggi-do, South Korea
| | - Jaemin Lee
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, South Korea
| | - Sin Hyung Park
- Department of Orthopaedic Surgery, Bucheon Hospital, Soonchunhyang University School of Medicine, Gyeonggi-do, South Korea
| | - Hyun Il Lee
- Department of Orthopedic Surgery, Ilsan Paik Hospital, Inje University, Gyeonggi-do, South Korea
| | - Inseok Jang
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, South Korea
| | - Soonchul Lee
- Department of Orthopaedic Surgery, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam-si, South Korea
- *Correspondence: Soonchul Lee
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10
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Bernardes SS, Pinto MCX, Amorim JH, Azevedo VADC, Resende RR, Mintz A, Birbrair A. Glioma Pericytes Promote Angiogenesis by Producing Periostin. Cell Mol Neurobiol 2022; 42:557-564. [PMID: 33010018 PMCID: PMC8018985 DOI: 10.1007/s10571-020-00975-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 09/27/2020] [Indexed: 12/14/2022]
Abstract
Glioma is the prevalent aggressive primary brain tumor, with a very poor prognosis. The absence of advanced understanding of the roles played by the cells within the glioma microenvironment limits the development of effective drugs. A recent study indicates that periostin expressed by pericytes is crucial for glioma angiogenesis. Here, we describe succinctly the results and implications of this discovery in what we know about pericytes within the glioma microenvironment. The emerging knowledge from this work will benefit the development of therapies for gliomas.
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Affiliation(s)
- Sara Santos Bernardes
- Tissue Microenvironment Laboratory, Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mauro Cunha Xavier Pinto
- Laboratory of Neuropharmacology and Neurochemistry, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Jaime Henrique Amorim
- Center of Biological Sciences and Health, Federal University of West Bahia, Barreiras, BA, Brazil
| | - Vasco Ariston de Carvalho Azevedo
- Cellular and Molecular Genetics Laboratory, Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rodrigo Ribeiro Resende
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Tissue Microenvironment Laboratory, Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
- Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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11
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Gomes NA, do Valle IB, Gleber-Netto FO, Silva TA, Oliveira HMDC, de Oliveira RF, Ferreira LDAQ, Castilho LS, Reis PHRG, Prazeres PHDM, Menezes GB, de Magalhães CS, Mesquita RA, Marques MM, Birbrair A, Diniz IMA. Nestin and NG2 transgenes reveal two populations of perivascular cells stimulated by photobiomodulation. J Cell Physiol 2022; 237:2198-2210. [PMID: 35040139 DOI: 10.1002/jcp.30680] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 12/14/2021] [Accepted: 01/04/2022] [Indexed: 12/20/2022]
Abstract
Pericytes and glial cells are known to collaborate in dental pulp tissue repair. Cell-based therapies that stimulate these stromal components may be of therapeutic relevance for partially vital dental pulp conditions. This study aimed to examine the early effect of photobiomodulation (PBM) in pericytes from experimentally injured pulp tissue. To accomplish this, we used the Nestin-GFP/NG2-DsRed mice, which could allow the identification of distinct pericyte phenotypes. We discovered the presence of two pericytes subsets within the dental pulp, the Nestin + NG2+ (type-2) and Nestin- NG2+ (type-1). Upon injury, PBM treatment led to a significant increase in Nestin+ cells and pericytes. This boost was mainly conferred by the more committed pericyte subset (NestinNG2+ ). PBM also stimulated terminal blood vessels sprouting adjacent to the injury site while maintaining signs of pulp vitality. In vitro, PBM induced VEGF upregulation, improved dental pulp cells proliferation and migration, and favored their mineralization potential. Herein, different subsets of perivascular cells were unveiled in the pulp tissue. PBM enhanced not only NG2+ cells but nestin-expressing progenitors in the injured dental pulp.
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Affiliation(s)
- Natália A Gomes
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isabella B do Valle
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Frederico O Gleber-Netto
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Tarcília A Silva
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Rafaela F de Oliveira
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza de Almeida Q Ferreira
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Lia S Castilho
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Paulo H R G Reis
- Ohlab, Associação Mineira de Reabilitação, Belo Horizonte, Brazil
| | - Pedro H D M Prazeres
- Departament of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gustavo B Menezes
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cláudia S de Magalhães
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo A Mesquita
- Department of Head & Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Márcia M Marques
- Postgraduation Program in Dentistry, Ibirapuera University, São Paulo, Brazil
| | - Alexander Birbrair
- Departament of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ivana M A Diniz
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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12
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Ritso M, Tung LW, Rossi FMV. Emerging skeletal muscle stromal cell diversity: Functional divergence in fibro/adipogenic progenitor and mural cell populations. Exp Cell Res 2022; 410:112947. [PMID: 34822813 DOI: 10.1016/j.yexcr.2021.112947] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 11/15/2021] [Accepted: 11/21/2021] [Indexed: 12/27/2022]
Abstract
While the majority of healthy skeletal muscle consists of multinucleated syncytial repetitive contractile myofibers, repaired by skeletal muscle stem cells when damaged, the maintenance of muscle function also requires a range of tissue-resident stromal populations. In fact, the careful orchestration of damage response processes upon muscle injury relies heavily on stromal cell contribution for effective repair. The two main types of muscle-resident stromal cells are fibro/adipogenic progenitors and mural cells. The latter is comprised of pericytes and vascular smooth muscle cells. Recent publications identifying common markers for stromal cell populations have allowed investigating population dynamics throughout the regenerative process at a higher resolution. Mounting evidence now suggests that subpopulations with distinct roles may exist among stromal cells. In various degenerative muscle wasting conditions, critical cross-talk and spatial signalling amongst various cell populations become dysregulated. This can result in the failure to curb pathological fibro/adipogenic progenitor proliferation and propensity for laying down excessive extracellular matrix, which in turn leads to fibrotic infiltration, reduced contractile units and gradual decline in muscle function. Restoration of physiologically appropriate stromal cell function is therefore just as crucial for therapeutic targeting as the homeostatic maintenance of muscle function.
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Affiliation(s)
- Morten Ritso
- School of Biomedical Engineering, 2222 Health Sciences Mall, The University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Lin Wei Tung
- School of Biomedical Engineering, 2222 Health Sciences Mall, The University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada
| | - Fabio M V Rossi
- School of Biomedical Engineering, 2222 Health Sciences Mall, The University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada.
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13
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Yuan K, Agarwal S, Chakraborty A, Condon DF, Patel H, Zhang S, Huang F, Mello SA, Kirk OI, Vasquez R, de Jesus Perez VA. Lung Pericytes in Pulmonary Vascular Physiology and Pathophysiology. Compr Physiol 2021; 11:2227-2247. [PMID: 34190345 PMCID: PMC10507675 DOI: 10.1002/cphy.c200027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pericytes are mesenchymal-derived mural cells localized within the basement membrane of pulmonary and systemic capillaries. Besides structural support, pericytes control vascular tone, produce extracellular matrix components, and cytokines responsible for promoting vascular homeostasis and angiogenesis. However, pericytes can also contribute to vascular pathology through the production of pro-inflammatory and pro-fibrotic cytokines, differentiation into myofibroblast-like cells, destruction of the extracellular matrix, and dissociation from the vessel wall. In the lung, pericytes are responsible for maintaining the integrity of the alveolar-capillary membrane and coordinating vascular repair in response to injury. Loss of pericyte communication with alveolar capillaries and a switch to a pro-inflammatory/pro-fibrotic phenotype are common features of lung disorders associated with vascular remodeling, inflammation, and fibrosis. In this article, we will address how to differentiate pericytes from other cells, discuss the molecular mechanisms that regulate the interactions of pericytes and endothelial cells in the pulmonary circulation, and the experimental tools currently used to study pericyte biology both in vivo and in vitro. We will also discuss evidence that links pericytes to the pathogenesis of clinically relevant lung disorders such as pulmonary hypertension, idiopathic lung fibrosis, sepsis, and SARS-COVID. Future studies dissecting the complex interactions of pericytes with other pulmonary cell populations will likely reveal critical insights into the origin of pulmonary diseases and offer opportunities to develop novel therapeutics to treat patients afflicted with these devastating disorders. © 2021 American Physiological Society. Compr Physiol 11:2227-2247, 2021.
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Affiliation(s)
- Ke Yuan
- Division of Respiratory Diseases Research, Department of Pediatrics, Boston Children’s Hospital, Boston, Massachusetts, USA
| | - Stuti Agarwal
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - Ananya Chakraborty
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - David F. Condon
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - Hiral Patel
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - Serena Zhang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - Flora Huang
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - Salvador A. Mello
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | | | - Rocio Vasquez
- University of Central Florida, Orlando, Florida, USA
| | - Vinicio A. de Jesus Perez
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Stanford University, Stanford, California, USA
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14
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Coimbra-Campos LMC, Silva WN, Baltazar LM, Costa PAC, Prazeres PHDM, Picoli CC, Costa AC, Rocha BGS, Santos GSP, Oliveira FMS, Pinto MCX, Amorim JH, Azevedo VAC, Souza DG, Russo RC, Resende RR, Mintz A, Birbrair A. Circulating Nestin-GFP + Cells Participate in the Pathogenesis of Paracoccidioides brasiliensis in the Lungs. Stem Cell Rev Rep 2021; 17:1874-1888. [PMID: 34003465 DOI: 10.1007/s12015-021-10181-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/06/2021] [Indexed: 02/06/2023]
Abstract
Multiple infectious diseases lead to impaired lung function. Revealing the cellular mechanisms involved in this impairment is crucial for the understanding of how the lungs shift from a physiologic to a pathologic state in each specific condition. In this context, we explored the pathogenesis of Paracoccidioidomycosis, which affects pulmonary functioning. The presence of cells expressing Nestin-GFP has been reported in different tissues, and their roles as tissue-specific progenitors have been stablished in particular organs. Here, we explored how Nestin-GFP+ cells are affected after lung infection by Paracoccidioides brasiliensis, a model of lung granulomatous inflammation with fibrotic outcome. We used Nestin-GFP transgenic mice, parabiosis surgery, confocal microscopy and flow cytometry to investigate the participation of Nestin-GFP+ cells in Paracoccidioides brasiliensis pathogenesis. We revealed that these cells increase in the lungs post-Paracoccidioides brasiliensis infection, accumulating around granulomas. This increase was due mainly to Nestin-GPF+ cells derived from the blood circulation, not associated to blood vessels, that co-express markers suggestive of hematopoietic cells (Sca-1, CD45 and CXCR4). Therefore, our findings suggest that circulating Nestin-GFP+ cells participate in the Paracoccidioides brasiliensis pathogenesis in the lungs.
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Affiliation(s)
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ludmila M Baltazar
- Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Pedro A C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Pedro H D M Prazeres
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Caroline C Picoli
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Alinne C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Beatriz G S Rocha
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Gabryella S P Santos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Fabrício M S Oliveira
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mauro C X Pinto
- Laboratory of Neuropharmacology and Neurochemistry, Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Jaime H Amorim
- Center of Biological Sciences and Health, Federal University of West Bahia, Barreiras, BA, Brazil
| | - Vasco A C Azevedo
- Cellular and Molecular Genetics Laboratory, Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Danielle G Souza
- Department of Microbiology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Remo C Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rodrigo R Resende
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
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15
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Theret M, Rossi FMV, Contreras O. Evolving Roles of Muscle-Resident Fibro-Adipogenic Progenitors in Health, Regeneration, Neuromuscular Disorders, and Aging. Front Physiol 2021; 12:673404. [PMID: 33959042 PMCID: PMC8093402 DOI: 10.3389/fphys.2021.673404] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 03/19/2021] [Indexed: 02/06/2023] Open
Abstract
Normal skeletal muscle functions are affected following trauma, chronic diseases, inherited neuromuscular disorders, aging, and cachexia, hampering the daily activities and quality of life of the affected patients. The maladaptive accumulation of fibrous intramuscular connective tissue and fat are hallmarks of multiple pathologies where chronic damage and inflammation are not resolved, leading to progressive muscle replacement and tissue degeneration. Muscle-resident fibro-adipogenic progenitors are adaptable stromal cells with multilineage potential. They are required for muscle homeostasis, neuromuscular integrity, and tissue regeneration. Fibro-adipogenic progenitors actively regulate and shape the extracellular matrix and exert immunomodulatory functions via cross-talk with multiple other residents and non-resident muscle cells. Remarkably, cumulative evidence shows that a significant proportion of activated fibroblasts, adipocytes, and bone-cartilage cells, found after muscle trauma and disease, descend from these enigmatic interstitial progenitors. Despite the profound impact of muscle disease on human health, the fibrous, fatty, and ectopic bone tissues' origins are poorly understood. Here, we review the current knowledge of fibro-adipogenic progenitor function on muscle homeostatic integrity, regeneration, repair, and aging. We also discuss how scar-forming pathologies and disorders lead to dysregulations in their behavior and plasticity and how these stromal cells can control the onset and severity of muscle loss in disease. We finally explore the rationale of improving muscle regeneration by understanding and modulating fibro-adipogenic progenitors' fate and behavior.
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Affiliation(s)
- Marine Theret
- Biomedical Research Centre, Department of Medical Genetics, School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada
| | - Fabio M. V. Rossi
- Biomedical Research Centre, Department of Medical Genetics, School of Biomedical Engineering, The University of British Columbia, Vancouver, BC, Canada
| | - Osvaldo Contreras
- Departamento de Biología Celular y Molecular, Center for Aging and Regeneration (CARE-ChileUC), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- St. Vincent’s Clinical School, Faculty of Medicine, UNSW Sydney, Kensington, NSW, Australia
- Developmental and Stem Cell Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, NSW, Australia
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16
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Starosta A, Konieczny P. Therapeutic aspects of cell signaling and communication in Duchenne muscular dystrophy. Cell Mol Life Sci 2021; 78:4867-4891. [PMID: 33825942 PMCID: PMC8233280 DOI: 10.1007/s00018-021-03821-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 02/26/2021] [Accepted: 03/23/2021] [Indexed: 12/11/2022]
Abstract
Duchenne muscular dystrophy (DMD) is a devastating chromosome X-linked disease that manifests predominantly in progressive skeletal muscle wasting and dysfunctions in the heart and diaphragm. Approximately 1/5000 boys and 1/50,000,000 girls suffer from DMD, and to date, the disease is incurable and leads to premature death. This phenotypic severity is due to mutations in the DMD gene, which result in the absence of functional dystrophin protein. Initially, dystrophin was thought to be a force transducer; however, it is now considered an essential component of the dystrophin-associated protein complex (DAPC), viewed as a multicomponent mechanical scaffold and a signal transduction hub. Modulating signal pathway activation or gene expression through epigenetic modifications has emerged at the forefront of therapeutic approaches as either an adjunct or stand-alone strategy. In this review, we propose a broader perspective by considering DMD to be a disease that affects myofibers and muscle stem (satellite) cells, as well as a disorder in which abrogated communication between different cell types occurs. We believe that by taking this systemic view, we can achieve safe and holistic treatments that can restore correct signal transmission and gene expression in diseased DMD tissues.
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Affiliation(s)
- Alicja Starosta
- Faculty of Biology, Institute of Human Biology and Evolution, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland
| | - Patryk Konieczny
- Faculty of Biology, Institute of Human Biology and Evolution, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 6, 61-614, Poznań, Poland.
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17
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Barrett P, Quick TJ, Mudera V, Player DJ. Generating intrafusal skeletal muscle fibres in vitro: Current state of the art and future challenges. J Tissue Eng 2020; 11:2041731420985205. [PMID: 34956586 PMCID: PMC8693220 DOI: 10.1177/2041731420985205] [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] [Received: 08/18/2020] [Accepted: 12/12/2020] [Indexed: 01/18/2023] Open
Abstract
Intrafusal fibres are a specialised cell population in skeletal muscle, found within the muscle spindle. These fibres have a mechano-sensory capacity, forming part of the monosynaptic stretch-reflex arc, a key component responsible for proprioceptive function. Impairment of proprioception and associated dysfunction of the muscle spindle is linked with many neuromuscular diseases. Research to-date has largely been undertaken in vivo or using ex vivo preparations. These studies have provided a foundation for our understanding of muscle spindle physiology, however, the cellular and molecular mechanisms which underpin physiological changes are yet to be fully elucidated. Therefrom, the use of in vitro models has been proposed, whereby intrafusal fibres can be generated de novo. Although there has been progress, it is predominantly a developing and evolving area of research. This narrative review presents the current state of art in this area and proposes the direction of future work, with the aim of providing novel pre-clinical and clinical applications.
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Affiliation(s)
- Philip Barrett
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK
| | - Tom J Quick
- Peripheral Nerve Injury Research Unit, Royal National Orthopaedic Hospital, Stanmore, UK
- UCL Centre for Nerve Engineering, University College London, London, UK
| | - Vivek Mudera
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK
| | - Darren J Player
- Centre for 3D Models of Health and Disease, Division of Surgery and Interventional Science, Faculty of Medical Sciences, University College London, London, UK
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18
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Lee LL, Khakoo AY, Chintalgattu V. Cardiac pericytes function as key vasoactive cells to regulate homeostasis and disease. FEBS Open Bio 2020; 11:207-225. [PMID: 33135334 PMCID: PMC7780101 DOI: 10.1002/2211-5463.13021] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/24/2020] [Accepted: 10/30/2020] [Indexed: 01/13/2023] Open
Abstract
Pericytes (PCs)—mural cells that envelop endothelial cells (ECs) of microvessels—regulate tissue‐specific vasculature development as well as maturation and maintenance of endothelial barrier integrity. However, little is known about their tissue‐specific function in the heart. Specifically, the mechanism by which cardiac PCs constrict coronary capillaries remains undetermined. To gain insights into the function of cardiac PCs at the cellular level, we isolated NG2+ PDGFRβ+ CD146+ CD34− CD31− CD45− PCs for detailed characterization. Functionally, we provide evidence that these PCs increased transepithelial electrical resistance and decreased endothelial permeability. We show for the first time that this population of PCs express contractile proteins, are stimulated by adrenergic signaling, and demonstrate stereotypical contraction and relaxation. Furthermore, we also studied for the first time, the PCs in in vitro models of disease. PCs in hypoxia activated the hypoxia‐inducible factor 1 alpha pathway, increased secretion of angiogenic factors, and caused cellular apoptosis. Supraphysiological levels of low‐density lipoprotein decreased PC proliferation and induced lipid droplet accumulation. Elevated glucose levels triggered a proinflammatory response. Taken together, our study characterizes cardiac PCs under in vitro disease conditions and supports the hypothesis that cardiac PCs are key vasoactive cells that can regulate blood flow in the heart.
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Affiliation(s)
- Linda L Lee
- Department of Cardiometabolic Disorders, Amgen Research and Discovery, Amgen Inc., South San Francisco, CA, USA
| | - Aarif Y Khakoo
- Department of Drug Development, Calico Labs, South San Francisco, CA, USA
| | - Vishnu Chintalgattu
- Department of Cardiometabolic Disorders, Amgen Research and Discovery, Amgen Inc., South San Francisco, CA, USA
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19
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Picoli CC, Costa AC, Rocha BGS, Silva WN, Santos GSP, Prazeres PHDM, Costa PAC, Oropeza A, da Silva RA, Azevedo VAC, Resende RR, Cunha TM, Mintz A, Birbrair A. Sensory nerves in the spotlight of the stem cell niche. Stem Cells Transl Med 2020; 10:346-356. [PMID: 33112056 PMCID: PMC7900586 DOI: 10.1002/sctm.20-0284] [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: 06/28/2020] [Revised: 08/27/2020] [Accepted: 09/26/2020] [Indexed: 12/16/2022] Open
Abstract
Niches are specialized tissue microenvironments that control stem cells functioning. The bone marrow mesenchymal stem cell niche defines a location within the marrow in which mesenchymal stem cells are retained and produce new cells throughout life. Deciphering the signaling mechanisms by which the niche regulates stem cell fate will facilitate the use of these cells for therapy. Recent studies, by using state-of-the-art methodologies, including sophisticated in vivo inducible genetic techniques, such as lineage-tracing Cre/loxP mediated systems, in combination with pharmacological inhibition, provide evidence that sensory neuron is an important component of the bone marrow mesenchymal stem cell niche. Strikingly, knockout of a specific receptor in sensory neurons blocked stem cell function in the bone marrow. The knowledge arising from these discoveries will be crucial for stem cell manipulation in the future. Here, we review recent progress in our understanding of sensory nerves biology in the stem cell niche.
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Affiliation(s)
- Caroline C Picoli
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Alinne C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Beatriz G S Rocha
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gabryella S P Santos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Pedro H D M Prazeres
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Pedro A C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Anderson Oropeza
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo A da Silva
- Department of Dentistry, University of Taubaté, Taubaté, São Paulo, Brazil
| | - Vasco A C Azevedo
- Cellular and Molecular Genetics Laboratory, Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Rodrigo R Resende
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Thiago M Cunha
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, New York, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Department of Radiology, Columbia University Medical Center, New York, New York, USA
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20
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Faulkner A, Tamiato A, Cathery W, Rampin A, Caravaggi CM, Jover E, Allen S, Mellor H, Hauton D, Heather LC, Spinetti G, Madeddu P. Dimethyl-2-oxoglutarate improves redox balance and mitochondrial function in muscle pericytes of individuals with diabetes mellitus. Diabetologia 2020; 63:2205-2217. [PMID: 32728894 PMCID: PMC7476972 DOI: 10.1007/s00125-020-05230-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 05/22/2020] [Indexed: 12/28/2022]
Abstract
AIMS/HYPOTHESIS Treatment of vascular complications of diabetes remains inadequate. We reported that muscle pericytes (MPs) from limb muscles of vascular patients with diabetes mellitus display elevated levels of oxidative stress causing a dysfunctional phenotype. Here, we investigated whether treatment with dimethyl-2-oxoglutarate (DM-2OG), a tricarboxylic acid cycle metabolite with antioxidant properties, can restore a healthy metabolic and functional phenotype. METHODS MPs were isolated from limb muscles of diabetes patients with vascular disease (D-MPs) and from non-diabetic control participants (ND-MPs). Metabolic status was assessed in untreated and DM-2OG-treated (1 mmol/l) cells using an extracellular flux analyser and anion-exchange chromatography-mass spectrometry (IC-MS/MS). Redox status was measured using commercial kits and IC-MS/MS, with antioxidant and metabolic enzyme expression assessed by quantitative RT-PCR and western blotting. Myogenic differentiation and proliferation and pericyte-endothelial interaction were assessed as functional readouts. RESULTS D-MPs showed mitochondrial dysfunction, suppressed glycolytic activity and reduced reactive oxygen species-buffering capacity, but no suppression of antioxidant systems when compared with ND-MP controls. DM-2OG supplementation improved redox balance and mitochondrial function, without affecting glycolysis or antioxidant systems. Nonetheless, this was not enough for treated D-MPs to regain the level of proliferation and myogenic differentiation of ND-MPs. Interestingly, DM-2OG exerted a positive effect on pericyte-endothelial cell interaction in the co-culture angiogenesis assay, independent of the diabetic status. CONCLUSIONS/INTERPRETATION These novel findings support the concept of using DM-2OG supplementation to improve pericyte redox balance and mitochondrial function, while concurrently allowing for enhanced pericyte-endothelial crosstalk. Such effects may help to prevent or slow down vasculopathy in skeletal muscles of people with diabetes. Graphical abstract.
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Affiliation(s)
- Ashton Faulkner
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK.
- School of Biochemistry, University of Bristol, University Walk, Bristol, BS8 1TD, UK.
| | - Anita Tamiato
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - William Cathery
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | | | | | - Eva Jover
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - Steve Allen
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Harry Mellor
- School of Biochemistry, University of Bristol, University Walk, Bristol, BS8 1TD, UK
| | - David Hauton
- Department of Chemistry, University of Oxford, Oxford, UK
| | - Lisa C Heather
- Department of Physiology, Anatomy & Genetics, University of Oxford, Oxford, UK
| | | | - Paolo Madeddu
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK.
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21
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Nakagomi T, Tanaka Y, Nakagomi N, Matsuyama T, Yoshimura S. How Long Are Reperfusion Therapies Beneficial for Patients after Stroke Onset? Lessons from Lethal Ischemia Following Early Reperfusion in a Mouse Model of Stroke. Int J Mol Sci 2020; 21:ijms21176360. [PMID: 32887241 PMCID: PMC7504064 DOI: 10.3390/ijms21176360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 12/19/2022] Open
Abstract
Ischemic stroke caused by cerebral artery occlusion induces neurological deficits because of cell damage or death in the central nervous system. Given the recent therapeutic advances in reperfusion therapies, some patients can now recover from an ischemic stroke with no sequelae. Currently, reperfusion therapies focus on rescuing neural lineage cells that survive in spite of decreases in cerebral blood flow. However, vascular lineage cells are known to be more resistant to ischemia/hypoxia than neural lineage cells. This indicates that ischemic areas of the brain experience neural cell death but without vascular cell death. Emerging evidence suggests that if a vascular cell-mediated healing system is present within ischemic areas following reperfusion, the therapeutic time window can be extended for patients with stroke. In this review, we present our comments on this subject based upon recent findings from lethal ischemia following reperfusion in a mouse model of stroke.
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Affiliation(s)
- Takayuki Nakagomi
- Institute for Advanced Medical Sciences, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
- Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
- Correspondence: ; Tel.: +81-798-45-6821; Fax: +81-798-45-6823
| | - Yasue Tanaka
- Department of Neurosurgery, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
| | - Nami Nakagomi
- Department of Surgical Pathology, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
| | - Tomohiro Matsuyama
- Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
| | - Shinichi Yoshimura
- Institute for Advanced Medical Sciences, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
- Department of Neurosurgery, Hyogo College of Medicine, 1-1 Mukogawacho, Nishinomiya 663-8501, Japan;
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22
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Mierzejewski B, Grabowska I, Jackowski D, Irhashava A, Michalska Z, Stremińska W, Jańczyk-Ilach K, Ciemerych MA, Brzoska E. Mouse CD146+ muscle interstitial progenitor cells differ from satellite cells and present myogenic potential. Stem Cell Res Ther 2020; 11:341. [PMID: 32762770 PMCID: PMC7409690 DOI: 10.1186/s13287-020-01827-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 06/24/2020] [Accepted: 07/13/2020] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The skeletal muscle regeneration relays on the satellite cells which are stem cells located between basal lamina and plasmalemma of muscle fiber. In the injured muscles, the satellite cells become activated, start to proliferate, and then differentiate into myoblasts, which fuse to form myotubes and finally myofibers. The satellite cells play the crucial role in the regeneration; however, other cells present in the muscle could also support this process. In the present study, we focused on one population of such cells, i.e., muscle interstitial progenitor cells. METHODS We used the CD146 marker to identify the population of mouse muscle interstitial cells. We analyzed the expression of selected markers, as well as clonogenic, myogenic, adipogenic, and chondrogenic potential in vitro. Simultaneously, we analyzed satellite cell-derived myoblasts and bone marrow-derived mesenchymal stem/stromal cells that allowed us to pinpoint the differences between these cell populations. Moreover, we isolated CD146+ cells and performed heterotopic transplantations to follow their in vivo differentiation. RESULTS Mouse muscle CD146+ interstitial progenitor cells expressed nestin and NG2 but not PAX7. These cells presented clonogenic and myogenic potential both in vitro and in vivo. CD146+ cells fused also with myoblasts in co-cultures in vitro. However, they were not able to differentiate to chondro- or adipocytes in vitro. Moreover, CD146+ cells followed myogenic differentiation in vivo after heterotopic transplantation. CONCLUSION Mouse CD146+ cells represent the population of mouse muscle interstitial progenitors that differ from satellite cell-derived myoblasts and have clonogenic and myogenic properties.
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Affiliation(s)
- Bartosz Mierzejewski
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Iwona Grabowska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Daniel Jackowski
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Aliksandra Irhashava
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Zuzanna Michalska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Władysława Stremińska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Katarzyna Jańczyk-Ilach
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Maria Anna Ciemerych
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland
| | - Edyta Brzoska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1 St, 02-096, Warszawa, Poland.
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23
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Shahidi B, Gibbons MC, Esparza M, Zlomislic V, Allen RT, Garfin SR, Ward SR. Cell populations and muscle fiber morphology associated with acute and chronic muscle degeneration in lumbar spine pathology. JOR Spine 2020; 3:e1087. [PMID: 32613162 PMCID: PMC7323470 DOI: 10.1002/jsp2.1087] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/17/2020] [Accepted: 03/24/2020] [Indexed: 12/31/2022] Open
Abstract
Many chronic musculoskeletal conditions are associated with loss of muscle volume and quality, resulting in functional decline. While atrophy has long been implicated as the mechanism of muscle loss in these conditions, recent evidence has emerged demonstrating a degenerative phenotype of muscle loss consisting of disrupted muscle fiber membranes, infiltration of cells into muscle fibers, and as previously describer, possible replacement of muscle fibers by adipose tissue. Here, we use human lumbar spine pathology as a model system to provide a more comprehensive analysis of the morphological features of this mode of muscle loss between early and late stages of disease, including an analysis of the cell populations found in paraspinal muscle biopsies from humans with acute vs chronic lumbar spine pathology. Using longitudinal sections, we show that degeneration of muscle fibers is localized within a fiber (ie, focal), and is characterized by discontinuous or ragged membrane disruption, cellular infiltration, and apparently vacant space containing limited numbers of nuclei and hyper-contractile cell debris. Samples from patients with acute and chronic pathology demonstrate similar magnitudes of muscle degeneration, however, larger proportions of PDGFRβ-positive progenitor cells and leukocytes were observed in the acute group, with no differences in myogenic cells, macrophages, or T-cells. By better understanding the cell population behaviors over the course of disease, therapies can be optimized to address the appropriate targets and timing of administration to minimize the functional consequences of muscle degeneration in lumbar spine pathology.
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Affiliation(s)
- Bahar Shahidi
- Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Michael C. Gibbons
- Department of BioengineeringUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Mary Esparza
- Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Vinko Zlomislic
- Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Richard Todd Allen
- Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Steven R. Garfin
- Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoCaliforniaUSA
| | - Samuel R. Ward
- Department of Orthopaedic SurgeryUniversity of California San DiegoSan DiegoCaliforniaUSA
- Department of BioengineeringUniversity of California San DiegoSan DiegoCaliforniaUSA
- Department of RadiologyUniversity of California San DiegoSan DiegoCaliforniaUSA
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24
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Yianni V, Sharpe PT. Epigenetic mechanisms driving lineage commitment in mesenchymal stem cells. Bone 2020; 134:115309. [PMID: 32145460 DOI: 10.1016/j.bone.2020.115309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 12/15/2022]
Abstract
The increasing application of approaches that allow tracing of individual cells over time, together with transcriptomic and epigenomic analyses is changing the way resident stromal stem cells (mesenchymal stem cells) are viewed. Rather than being a defined, homogeneous cell population as described following in vitro expansion, in vivo, these cells are highly programmed according to their resident tissue location. This programming is evidenced by different epigenetic landscapes and gene transcription signatures in cells before any in vitro expansion. This has potentially profound implications for the heterotypic use of these cells in therapeutic tissue engineering applications.
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Affiliation(s)
- Val Yianni
- Centre for Craniofacial & Regenerative Biology, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, United Kingdom of Great Britain and Northern Ireland
| | - Paul T Sharpe
- Centre for Craniofacial & Regenerative Biology, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, United Kingdom of Great Britain and Northern Ireland.
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25
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Nwadozi E, Rudnicki M, Haas TL. Metabolic Coordination of Pericyte Phenotypes: Therapeutic Implications. Front Cell Dev Biol 2020; 8:77. [PMID: 32117997 PMCID: PMC7033550 DOI: 10.3389/fcell.2020.00077] [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: 11/25/2019] [Accepted: 01/29/2020] [Indexed: 12/15/2022] Open
Abstract
Pericytes are mural vascular cells found predominantly on the abluminal wall of capillaries, where they contribute to the maintenance of capillary structural integrity and vascular permeability. Generally quiescent cells in the adult, pericyte activation and proliferation occur during both physiological and pathological vascular and tissue remodeling. A considerable body of research indicates that pericytes possess attributes of a multipotent adult stem cell, as they are capable of self-renewal as well as commitment and differentiation into multiple lineages. However, pericytes also display phenotypic heterogeneity and recent studies indicate that lineage potential differs between pericyte subpopulations. While numerous microenvironmental cues and cell signaling pathways are known to regulate pericyte functions, the roles that metabolic pathways play in pericyte quiescence, self-renewal or differentiation have been given limited consideration to date. This review will summarize existing data regarding pericyte metabolism and will discuss the coupling of signal pathways to shifts in metabolic pathway preferences that ultimately regulate pericyte quiescence, self-renewal and trans-differentiation. The association between dysregulated metabolic processes and development of pericyte pathologies will be highlighted. Despite ongoing debate regarding pericyte classification and their functional capacity for trans-differentiation in vivo, pericytes are increasingly exploited as a cell therapy tool to promote tissue healing and regeneration. Ultimately, the efficacy of therapeutic approaches hinges on the capacity to effectively control/optimize the fate of the implanted pericytes. Thus, we will identify knowledge gaps that need to be addressed to more effectively harness the opportunity for therapeutic manipulation of pericytes to control pathological outcomes in tissue remodeling.
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Affiliation(s)
| | | | - Tara L. Haas
- School of Kinesiology and Health Science, Angiogenesis Research Group and Muscle Health Research Centre, York University, Toronto, ON, Canada
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26
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Mierzejewski B, Archacka K, Grabowska I, Florkowska A, Ciemerych MA, Brzoska E. Human and mouse skeletal muscle stem and progenitor cells in health and disease. Semin Cell Dev Biol 2020; 104:93-104. [PMID: 32005567 DOI: 10.1016/j.semcdb.2020.01.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 12/25/2022]
Abstract
The proper functioning of tissues and organs depends on their ability to self-renew and repair. Some of the tissues, like epithelia, renew almost constantly while in the others this process is induced by injury or diseases. The stem or progenitor cells responsible for tissue homeostasis have been identified in many organs. Some of them, such as hematopoietic or intestinal epithelium stem cells, are multipotent and can differentiate into various cell types. Others are unipotent. The skeletal muscle tissue does not self-renew spontaneously, however, it presents unique ability to regenerate in response to the injury or disease. Its repair almost exclusively relies on unipotent satellite cells. However, multiple lines of evidence document that some progenitor cells present in the muscle can be supportive for skeletal muscle regeneration. Here, we summarize the current knowledge on the complicated landscape of stem and progenitor cells that exist in skeletal muscle and support its regeneration. We compare the cells from two model organisms, i.e., mouse and human, documenting their similarities and differences and indicating methods to test their ability to undergo myogenic differentiation.
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Affiliation(s)
- Bartosz Mierzejewski
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1St, 02-096 Warsaw, Poland
| | - Karolina Archacka
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1St, 02-096 Warsaw, Poland
| | - Iwona Grabowska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1St, 02-096 Warsaw, Poland
| | - Anita Florkowska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1St, 02-096 Warsaw, Poland
| | - Maria Anna Ciemerych
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1St, 02-096 Warsaw, Poland
| | - Edyta Brzoska
- Department of Cytology, Faculty of Biology, University of Warsaw, Miecznikowa 1St, 02-096 Warsaw, Poland.
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27
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Abstract
Components of the tumor microenvironment (TME) are known to play an essential role during malignant progression, but often in a context-dependent manner. In bone and soft tissue sarcomas, disease-regulatory activities in the TME remain largely uncharacterized. This chapter introduces the cellular, structural, and chemical composition of the sarcoma TME from a pathobiological and therapeutic perspective.Sarcomas are malignant tumors with diverse features when it comes to primary tumor appearance, metastatic potential, and response to treatment. Many of the classic subtypes are mainly composed of malignant cells and are therefore assumed to be committed to autocrine signaling. Some of the tumors are infiltrated by immune cells and contain necrotic areas or excessive amounts of extracellular matrix (ECM) that regulates tissue stiffness and interstitial fluid pressure. Vascular invasion and blood vessel characteristics can in some instances be considered in the prognostic setting.Further insights into the disease-regulatory activities of the sarcoma TME will provide essential knowledge on how to develop successful combination treatments targeting not only malignant cells, but also their routes of nutrition and ability to shield themselves toward existing therapy.
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28
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Andreotti JP, Silva WN, Costa AC, Picoli CC, Bitencourt FCO, Coimbra-Campos LMC, Resende RR, Magno LAV, Romano-Silva MA, Mintz A, Birbrair A. Neural stem cell niche heterogeneity. Semin Cell Dev Biol 2019; 95:42-53. [PMID: 30639325 PMCID: PMC6710163 DOI: 10.1016/j.semcdb.2019.01.005] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/02/2018] [Accepted: 01/08/2019] [Indexed: 12/15/2022]
Abstract
In mammals, new neurons can be generated from neural stem cells in specific regions of the adult brain. Neural stem cells are characterized by their abilities to differentiate into all neural lineages and to self-renew. The specific microenvironments regulating neural stem cells, commonly referred to as neurogenic niches, comprise multiple cell populations whose precise contributions are under active current exploration. Understanding the cross-talk between neural stem cells and their niche components is essential for the development of therapies against neurological disorders in which neural stem cells function is altered. In this review, we describe and discuss recent studies that identified novel components in the neural stem cell niche. These discoveries bring new concepts to the field. Here, we evaluate these recent advances that change our understanding of the neural stem cell niche heterogeneity and its influence on neural stem cell function.
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Affiliation(s)
- Julia P Andreotti
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Alinne C Costa
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Caroline C Picoli
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Flávia C O Bitencourt
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Rodrigo R Resende
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiz A V Magno
- Department of Mental Health, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Marco A Romano-Silva
- Department of Mental Health, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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29
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Leonel C, Sena IFG, Silva WN, Prazeres PHDM, Fernandes GR, Mancha Agresti P, Martins Drumond M, Mintz A, Azevedo VAC, Birbrair A. Staphylococcus epidermidis role in the skin microenvironment. J Cell Mol Med 2019; 23:5949-5955. [PMID: 31278859 PMCID: PMC6714221 DOI: 10.1111/jcmm.14415] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/12/2019] [Accepted: 04/30/2019] [Indexed: 02/06/2023] Open
Abstract
Wound healing is a complex dynamic physiological process in response to cutaneous destructive stimuli that aims to restore the cutaneous' barrier role. Deciphering the underlying mechanistic details that contribute to wound healing will create novel therapeutic strategies for skin repair. Recently, by using state-of-the-art technologies, it was revealed that the cutaneous microbiota interact with skin immune cells. Strikingly, commensal Staphylococcus epidermidis-induced CD8+ T cells induce re-epithelization of the skin after injury, accelerating wound closure. From a drug development perspective, the microbiota may provide new therapeutic candidate molecules to accelerate skin healing. Here, we summarize and evaluate recent advances in the understanding of the microbiota in the skin microenvironment.
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Affiliation(s)
- Caroline Leonel
- Departamento de PatologiaUniversidade Federal de Minas GeraisBelo HorizonteBrasil
| | - Isadora F. G. Sena
- Departamento de PatologiaUniversidade Federal de Minas GeraisBelo HorizonteBrasil
| | - Walison N. Silva
- Departamento de PatologiaUniversidade Federal de Minas GeraisBelo HorizonteBrasil
| | | | | | - Pamela Mancha Agresti
- Departamento de Biologia GeralUniversidade Federal de Minas GeraisBelo HorizonteBrasil
| | | | - Akiva Mintz
- Department of RadiologyColumbia University Medical CenterNew YorkNew York
| | - Vasco A. C. Azevedo
- Departamento de Biologia GeralUniversidade Federal de Minas GeraisBelo HorizonteBrasil
| | - Alexander Birbrair
- Departamento de PatologiaUniversidade Federal de Minas GeraisBelo HorizonteBrasil
- Department of RadiologyColumbia University Medical CenterNew YorkNew York
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30
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Yoshida Y, Kabara M, Kano K, Horiuchi K, Hayasaka T, Tomita Y, Takehara N, Minoshima A, Aonuma T, Maruyama K, Nakagawa N, Azuma N, Hasebe N, Kawabe JI. Capillary-resident EphA7 + pericytes are multipotent cells with anti-ischemic effects through capillary formation. Stem Cells Transl Med 2019; 9:120-130. [PMID: 31471947 PMCID: PMC6954719 DOI: 10.1002/sctm.19-0148] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/19/2019] [Indexed: 12/14/2022] Open
Abstract
The presence of pericytes (PCs) with multipotency and broad distribution along capillary suggests that microvasculature plays a role not only as a duct for blood fluid transport but also as a stem cell niche that contributes to tissue maintenance and regeneration. The lack of an appropriate marker for multipotent PCs still limits our understanding of their pathophysiological roles. We identified the novel marker EphA7 to detect multipotent PCs using microarray analysis of an immortalized PC library. PCs were isolated from microvessels of mouse subcutaneous adipose tissues, then EphA7+ PCs called capillary stem cells (CapSCs) were separated from EphA7− control PCs (ctPCs) using fluorescence‐activated cell sorting system. CapSCs had highly multipotency that enabled them to differentiate into mesenchymal and neuronal lineages compared with ctPCs. CapSCs also differentiated into endothelial cells and PCs to form capillary‐like structures by themselves. Transplantation of CapSCs into ischemic tissues significantly improved blood flow recovery in hind limb ischemia mouse model due to vascular formation compared with that of ctPCs and adipose stromal cells. These data demonstrate that EphA7 identifies a subpopulation of multipotent PCs that have high angiogenesis and regenerative potency and are an attractive target for regenerative therapies.
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Affiliation(s)
- Yuri Yoshida
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Department of Vascular Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Maki Kabara
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan
| | - Kohei Kano
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Kiwamu Horiuchi
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Taiki Hayasaka
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Yui Tomita
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Department of Radiology, Asahikawa Medical University, Asahikawa, Japan
| | - Naofumi Takehara
- Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Akiho Minoshima
- Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Tatsuya Aonuma
- Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Keisuke Maruyama
- Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Naoki Nakagawa
- Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Nobuyoshi Azuma
- Department of Vascular Surgery, Asahikawa Medical University, Asahikawa, Japan
| | - Naoyuki Hasebe
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan.,Department of Medicine, Division of Cardiovascular, Respiratory and Neurology, Asahikawa Medical University, Asahikawa, Japan
| | - Jun-Ichi Kawabe
- Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, Japan
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31
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Nakagomi T, Takagi T, Beppu M, Yoshimura S, Matsuyama T. Neural regeneration by regionally induced stem cells within post-stroke brains: Novel therapy perspectives for stroke patients. World J Stem Cells 2019; 11:452-463. [PMID: 31523366 PMCID: PMC6716084 DOI: 10.4252/wjsc.v11.i8.452] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 07/04/2019] [Accepted: 07/16/2019] [Indexed: 02/06/2023] Open
Abstract
Ischemic stroke is a critical disease which causes serious neurological functional loss such as paresis. Hope for novel therapies is based on the increasing evidence of the presence of stem cell populations in the central nervous system (CNS) and the development of stem-cell-based therapies for stroke patients. Although mesenchymal stem cells (MSCs) represented initially a promising cell source, only a few transplanted MSCs were present near the injured areas of the CNS. Thus, regional stem cells that are present and/or induced in the CNS may be ideal when considering a treatment following ischemic stroke. In this context, we have recently showed that injury/ischemia-induced neural stem/progenitor cells (iNSPCs) and injury/ischemia-induced multipotent stem cells (iSCs) are present within post-stroke human brains and post-stroke mouse brains. This indicates that iNSPCs/iSCs could be developed for clinical applications treating patients with stroke. The present study introduces the traits of mouse and human iNSPCs, with a focus on the future perspective for CNS regenerative therapies using novel iNSPCs/iSCs.
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Affiliation(s)
- Takayuki Nakagomi
- Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
- Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
| | - Toshinori Takagi
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
| | - Mikiya Beppu
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
| | - Shinichi Yoshimura
- Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
| | - Tomohiro Matsuyama
- Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, Nishinomiya, Hyogo 663-8501, Japan
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Macrophages Are Key Regulators of Stem Cells during Skeletal Muscle Regeneration and Diseases. Stem Cells Int 2019; 2019:4761427. [PMID: 31396285 PMCID: PMC6664695 DOI: 10.1155/2019/4761427] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/09/2019] [Indexed: 12/31/2022] Open
Abstract
Muscle regeneration is a closely regulated process that involves a variety of cell types such as satellite cells, myofibers, fibroadipogenic progenitors, endothelial cells, and inflammatory cells. Among these different cell types, macrophages emerged as a central actor coordinating the different cellular interactions and biological processes. Particularly, the transition of macrophages from their proinflammatory to their anti-inflammatory phenotype was shown to regulate inflammation, myogenesis, fibrosis, vascularization, and return to homeostasis. On the other hand, deregulation of macrophage accumulation or polarization in chronic degenerative muscle disorders was shown to impair muscle regeneration. Considering the key roles of macrophages in skeletal muscle, they represent an attractive target for new therapeutic approaches aiming at mitigating various muscle disorders. This review aims at summarizing the novel insights into macrophage heterogeneity, plasticity, and functions in skeletal muscle homeostasis, regeneration, and disease.
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Drouin G, Couture V, Lauzon MA, Balg F, Faucheux N, Grenier G. Muscle injury-induced hypoxia alters the proliferation and differentiation potentials of muscle resident stromal cells. Skelet Muscle 2019; 9:18. [PMID: 31217019 PMCID: PMC6582603 DOI: 10.1186/s13395-019-0202-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 05/27/2019] [Indexed: 02/06/2023] Open
Abstract
Background Trauma-induced heterotopic ossification (HO) is a complication that develops under three conditions: the presence of an osteogenic progenitor cell, an inducing factor, and a permissive environment. We previously showed that a mouse multipotent Sca1+ CD31− Lin− muscle resident stromal cell (mrSC) population is involved in the development of HO in the presence of inducing factors, members of the bone morphogenetic protein family. Interestingly, BMP9 unlike BMP2 causes HO only if the muscle is damaged by injection of cardiotoxin. Because acute trauma often results in blood vessel breakdown, we hypothesized that a hypoxic state in damaged muscles may foster mrSCs activation and proliferation and trigger differentiation toward an osteogenic lineage, thus promoting the development of HO. Methods Three- to - six-month-old male C57Bl/6 mice were used to induce muscle damage by injection of cardiotoxin intramuscularly into the tibialis anterior and gastrocnemius muscles. mrSCs were isolated from damaged (hypoxic state) and contralateral healthy muscles and counted, and their osteoblastic differentiation with or without BMP2 and BMP9 was determined by alkaline phosphatase activity measurement. The proliferation and differentiation of mrSCs isolated from healthy muscles was also studied in normoxic incubator and hypoxic conditions. The effect of hypoxia on BMP synthesis and Smad pathway activation was determined by qPCR and/or Western blot analyses. Differences between normally distributed groups were compared using a Student’s paired t test or an unpaired t test. Results The hypoxic state of a severely damaged muscle increased the proliferation and osteogenic differentiation of mrSCs. mrSCs isolated from damaged muscles also displayed greater sensitivity to osteogenic signals, especially BMP9, than did mrSCs from a healthy muscle. In hypoxic conditions, mrSCs isolated from a control muscle were more proliferative and were more prone to osteogenic differentiation. Interestingly, Smad1/5/8 activation was detected in hypoxic conditions and was still present after 5 days, while Smad1/5/8 phosphorylation could not be detected after 3 h of normoxic incubator condition. BMP9 mRNA transcripts and protein levels were higher in mrSCs cultured in hypoxic conditions. Our results suggest that low-oxygen levels in damaged muscle influence mrSC behavior by facilitating their differentiation into osteoblasts. This effect may be mediated partly through the activation of the Smad pathway and the expression of osteoinductive growth factors such as BMP9 by mrSCs. Conclusion Hypoxia should be considered a key factor in the microenvironment of damaged muscle that triggers HO. Electronic supplementary material The online version of this article (10.1186/s13395-019-0202-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Geneviève Drouin
- Centre de Recherche du CHUS, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada.,Agriculture and Agri-Food Canada, 2000 College Street, Sherbrooke, QC, J1M 0C8, Canada
| | - Vanessa Couture
- Centre de Recherche du CHUS, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada
| | - Marc-Antoine Lauzon
- Laboratory of 3D Cell Culture Systems, Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 Boul Universite, Sherbrooke, QC, J1K 2R1, Canada
| | - Frédéric Balg
- Centre de Recherche du CHUS, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada.,Department of Orthopedic Surgery, Faculty of Medicine, Université de Sherbrooke, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada
| | - Nathalie Faucheux
- Centre de Recherche du CHUS, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada. .,Laboratory of Cell-Biomaterial Biohybrid Systems, Department of Chemical and Biotechnological Engineering, Faculty of Engineering, Université de Sherbrooke, 2500 Boul Universite, Sherbrooke, QC, J1K 2R1, Canada.
| | - Guillaume Grenier
- Centre de Recherche du CHUS, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada.,Department of Orthopedic Surgery, Faculty of Medicine, Université de Sherbrooke, 12e Avenue Nord, Sherbrooke, QC, J1H 5N4, Canada
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Munroe M, Dvoretskiy S, Lopez A, Leong J, Dyle MC, Kong H, Adams CM, Boppart MD. Pericyte transplantation improves skeletal muscle recovery following hindlimb immobilization. FASEB J 2019; 33:7694-7706. [PMID: 31021652 PMCID: PMC6529341 DOI: 10.1096/fj.201802580r] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 03/04/2019] [Indexed: 02/06/2023]
Abstract
Conditions of extended bed rest and limb immobilization can initiate rapid and significant loss of skeletal muscle mass and function. Physical rehabilitation is standard practice following a period of disuse, yet mobility may be severely compromised, and recovery is commonly delayed or incomplete in special populations. Thus, a novel approach toward recovery of muscle mass is highly desired. Pericytes [neuron-glial antigen 2 (NG2)+CD31-CD45- (Lineage- [Lin-]) and CD146+Lin-] demonstrate capacity to facilitate muscle repair, yet the ability to enhance myofiber growth following disuse is unknown. In the current study, 3-4-mo-old mice were unilaterally immobilized for 14 d (IM) or immobilized for 14 d followed by 14 d of remobilization (RE). Flow cytometry and targeted gene expression analyses were completed to assess pericyte quantity and function following IM and RE. In addition, a transplantation study was conducted to assess the impact of pericytes on recovery. Results from targeted analyses suggest minimal impact of disuse on pericyte gene expression, yet NG2+Lin- pericyte quantity is reduced following IM (P < 0.05). Remarkably, pericyte transplantation recovered losses in myofiber cross-sectional area and the capillary-to-fiber ratio following RE, whereas deficits remained with vehicle alone (P = 0.01). These findings provide the first evidence that pericytes effectively rehabilitate skeletal muscle mass following disuse atrophy.-Munroe, M., Dvoretskiy, S., Lopez, A., Leong, J., Dyle, M. C., Kong, H., Adams, C. M., Boppart, M. D. Pericyte transplantation improves skeletal muscle recovery following hindlimb immobilization.
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Affiliation(s)
- Michael Munroe
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Svyatoslav Dvoretskiy
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Amber Lopez
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Jiayu Leong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Michael C. Dyle
- Departments of Internal Medicine and University of Iowa, Iowa City, Iowa, USA
- Department of Molecular Physiology and Biophysics, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois–Urbana-Champaign, Urbana, Illinois, USA
| | - Christopher M. Adams
- Departments of Internal Medicine and University of Iowa, Iowa City, Iowa, USA
- Department of Molecular Physiology and Biophysics, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Marni D. Boppart
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois–Urbana-Champaign, Urbana, Illinois, USA
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35
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Santos GSP, Magno LAV, Romano-Silva MA, Mintz A, Birbrair A. Pericyte Plasticity in the Brain. Neurosci Bull 2019; 35:551-560. [PMID: 30367336 PMCID: PMC6527663 DOI: 10.1007/s12264-018-0296-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 08/06/2018] [Indexed: 12/16/2022] Open
Abstract
Cerebral pericytes are perivascular cells that stabilize blood vessels. Little is known about the plasticity of pericytes in the adult brain in vivo. Recently, using state-of-the-art technologies, including two-photon microscopy in combination with sophisticated Cre/loxP in vivo tracing techniques, a novel role of pericytes was revealed in vascular remodeling in the adult brain. Strikingly, after pericyte ablation, neighboring pericytes expand their processes and prevent vascular dilatation. This new knowledge provides insights into pericyte plasticity in the adult brain.
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Affiliation(s)
- Gabryella S P Santos
- Departamento de Patologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil
| | - Luiz A V Magno
- Department of Mental Health, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
| | - Marco A Romano-Silva
- Department of Mental Health, Federal University of Minas Gerais, Belo Horizonte, MG, 30130-100, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, 10032, USA
| | - Alexander Birbrair
- Departamento de Patologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, 31270-901, Brazil.
- Department of Radiology, Columbia University Medical Center, New York, NY, 10032, USA.
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36
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Azevedo PO, Paiva AE, Santos GSP, Lousado L, Andreotti JP, Sena IFG, Tagliati CA, Mintz A, Birbrair A. Cross-talk between lung cancer and bones results in neutrophils that promote tumor progression. Cancer Metastasis Rev 2019; 37:779-790. [PMID: 30203108 DOI: 10.1007/s10555-018-9759-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Lung cancer is the leading cause of cancer mortality around the world. The lack of detailed understanding of the cellular and molecular mechanisms participating in the lung tumor progression restrains the development of efficient treatments. Recently, by using state-of-the-art technologies, including in vivo sophisticated Cre/loxP technologies in combination with lung tumor models, it was revealed that osteoblasts activate neutrophils that promote tumor growth in the lung. Strikingly, genetic ablation of osteoblasts abolished lung tumor progression via interruption of SiglecFhigh-expressing neutrophils supply to the tumor microenvironment. Interestingly, SiglecFhigh neutrophil signature was associated with worse lung adenocarcinoma patients outcome. This study identifies novel cellular targets for lung cancer treatment. Here, we summarize and evaluate recent advances in our understanding of lung tumor microenvironment.
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Affiliation(s)
- Patrick O Azevedo
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ana E Paiva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Gabryella S P Santos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Luiza Lousado
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Julia P Andreotti
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Isadora F G Sena
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Carlos A Tagliati
- Department of Clinical and Toxicological Analysis, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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Beppu M, Nakagomi T, Takagi T, Nakano-Doi A, Sakuma R, Kuramoto Y, Tatebayashi K, Matsuyama T, Yoshimura S. Isolation and Characterization of Cerebellum-Derived Stem Cells in Poststroke Human Brain. Stem Cells Dev 2019; 28:528-542. [PMID: 30767605 DOI: 10.1089/scd.2018.0232] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
There is compelling evidence that the mature central nervous system (CNS) harbors stem cell populations outside conventional neurogenic regions. We previously demonstrated that brain pericytes (PCs) in both mouse and human exhibit multipotency to differentiate into various neural lineages following cerebral ischemia. PCs are found throughout the CNS, including cerebellum, but it remains unclear whether cerebellar PCs also form ischemia-induced multipotent stem cells (iSCs). In this study, we demonstrate that putative iSCs can be isolated from poststroke human cerebellum (cerebellar iSCs [cl-iSCs]). These cl-iSCs exhibited multipotency and differentiated into electrophysiologically active neurons. Neurogenic potential was also confirmed in single-cell suspensions. DNA microarray analysis revealed highly similar gene expression patterns between PCs and cl-iSCs, suggesting PC origin. Global gene expression comparison with cerebral iSCs revealed general similarity, but cl-iSCs differentially expressed certain cerebellum-specific genes. Thus, putative iSCs are present in poststroke cerebellum and possess region-specific traits, suggesting potential capacity to regenerate functional cerebellar neurons following ischemic stroke.
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Affiliation(s)
- Mikiya Beppu
- 1 Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Takayuki Nakagomi
- 2 Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, Japan.,3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, Nishinomiya, Japan
| | - Toshinori Takagi
- 1 Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Akiko Nakano-Doi
- 2 Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, Japan.,3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, Nishinomiya, Japan
| | - Rika Sakuma
- 2 Institute for Advanced Medical Sciences, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yoji Kuramoto
- 1 Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Kotaro Tatebayashi
- 1 Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Tomohiro Matsuyama
- 3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine, Nishinomiya, Japan
| | - Shinichi Yoshimura
- 1 Department of Neurosurgery, Hyogo College of Medicine, Nishinomiya, Japan
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38
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Pericytes as a Source of Osteogenic Cells in Bone Fracture Healing. Int J Mol Sci 2019; 20:ijms20051079. [PMID: 30832329 PMCID: PMC6429337 DOI: 10.3390/ijms20051079] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/25/2019] [Accepted: 02/25/2019] [Indexed: 12/12/2022] Open
Abstract
Pericytes are mesenchymal cells that surround the endothelial cells of small vessels in various organs. These cells express several markers, such as NG2, CD146, and PDGFRβ, and play an important role in the stabilization and maturation of blood vessels. It was also recently revealed that like mesenchymal stem cells (MSCs), pericytes possess multilineage differentiation capacity, especially myogenic, adipogenic, and fibrogenic differentiation capacities. Although some previous studies have reported that pericytes also have osteogenic potential, the osteogenesis of pericytes can still be further elucidated. In the present study, we established novel methods for isolating and culturing primary murine pericytes. An immortalized pericyte line was also established. Multilineage induction of the pericyte line induced osteogenesis, adipogenesis, and chondrogenesis of the cells in vitro. In addition, pericytes that were injected into the fracture site of a bone fracture mouse model contributed to callus formation. Furthermore, in vivo pericyte-lineage-tracing studies demonstrated that endogenous pericytes also differentiate into osteoblasts and osteocytes and contribute to bone fracture healing as a cellular source of osteogenic cells. Pericytes can be a promising therapeutic candidate for treating bone fractures with a delayed union or nonunion as well as bone diseases causing bone defects.
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39
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Pieri NCG, de Souza AF, Botigelli RC, Machado LS, Ambrosio CE, Dos Santos Martins D, de Andrade AFC, Meirelles FV, Hyttel P, Bressan FF. Stem cells on regenerative and reproductive science in domestic animals. Vet Res Commun 2019; 43:7-16. [PMID: 30656543 DOI: 10.1007/s11259-019-9744-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022]
Abstract
Stem cells are undifferentiated and self-renewable cells that present new possibilities for both regenerative medicine and the understanding of early mammalian development. Adult multipotent stem cells are already widely used worldwide in human and veterinary medicine, and their therapeutic signalling, particularly with respect to immunomodulation, and their trophic properties have been intensively studied. The derivation of embryonic stem cells (ESCs) from domestic species, however, has been challenging, and the poor results do not reflect the successes obtained in mouse and human experiments. More recently, the generation of induced pluripotent stem cells (iPSCs) via the forced expression of specific transcription factors has been demonstrated in domestic species and has introduced new potentials in regenerative medicine and reproductive science based upon the ability of these cells to differentiate into a variety of cells types in vitro. For example, iPSCs have been differentiated into primordial germ-like cells (PGC-like cells, PGCLs) and functional gametes in mice. The possibility of using iPSCs from domestic species for this purpose would contribute significantly to reproductive technologies, offering unprecedented opportunities to restore fertility, to preserve endangered species and to generate transgenic animals for biomedical applications. Therefore, this review aims to provide an updated overview of adult multipotent stem cells and to discuss new possibilities introduced by the generation of iPSCs in domestic animals, highlighting the possibility of generating gametes in vitro via PGCL induction.
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Affiliation(s)
- Naira Caroline Godoy Pieri
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| | - Aline Fernanda de Souza
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Ramon Cesar Botigelli
- Department of Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, Brazil
| | - Lucas Simões Machado
- Department of Surgery, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| | - Carlos Eduardo Ambrosio
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Daniele Dos Santos Martins
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - André Furugen Cesar de Andrade
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, Brazil
| | - Flavio Vieira Meirelles
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, Brazil
| | - Poul Hyttel
- Department of Veterinary and Animal Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Fabiana Fernandes Bressan
- Department of Veterinary Medicine, Faculty of Animal Sciences and Food Engineering, University of São Paulo, Pirassununga, Brazil.
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40
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Salmina AB, Komleva YK, Lopatina OL, Birbrair A. Pericytes in Alzheimer's Disease: Novel Clues to Cerebral Amyloid Angiopathy Pathogenesis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1147:147-166. [PMID: 31147877 DOI: 10.1007/978-3-030-16908-4_7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Pericytes in the central nervous system attract growing attention of neurobiologists because of obvious opportunities to use them as target cells in numerous brain diseases. Functional activity of pericytes includes control of integrity of the endothelial cell layer, regeneration of vascular cells, and regulation of microcirculation. Pericytes are well integrated in the so-called neurovascular unit (NVU) serving as a platform for effective communications of neurons, astrocytes, endothelial cells, and pericytes. Contribution of pericytes to the establishment and maintaining the structural and functional integrity of blood-brain barrier is confirmed in numerous experimental and clinical studies. The review covers current understandings on the role of pericytes in molecular pathogenesis of NVU/BBB dysfunction in Alzheimer's disease with the special focus on the development of cerebral amyloid angiopathy, deregulation of cerebral angiogenesis, and progression of BBB breakdown seen in Alzheimer's type neurodegeneration.
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Affiliation(s)
- Alla B Salmina
- Department of Biochemistry, Medical, Pharmaceutical & Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russia. .,Research Institute of Molecular Medicine & Pathobiochemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russia.
| | - Yulia K Komleva
- Department of Biochemistry, Medical, Pharmaceutical & Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russia.,Research Institute of Molecular Medicine & Pathobiochemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russia
| | - Olga L Lopatina
- Department of Biochemistry, Medical, Pharmaceutical & Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russia.,Research Institute of Molecular Medicine & Pathobiochemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-Yasenetsky, Krasnoyarsk, Russia
| | - Alexander Birbrair
- Department of Radiology, Columbia University Medical Center, New York, NY, USA.,Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
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41
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Sattiraju A, Mintz A. Pericytes in Glioblastomas: Multifaceted Role Within Tumor Microenvironments and Potential for Therapeutic Interventions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1147:65-91. [PMID: 31147872 DOI: 10.1007/978-3-030-16908-4_2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Glioblastoma (GBM) is an aggressive and lethal disease that often results in a poor prognosis. Unlike most solid tumors, GBM is characterized by diffuse infiltrating margins, extensive angiogenesis, hypoxia, necrosis, and clonal heterogeneity. Recurrent disease is an unavoidable consequence for many patients as standard treatment options such as surgery, radiotherapy, and chemotherapy have proven to be insufficient in causing long-term survival benefits. Systemic delivery of promising drugs is hindered due to the blood-brain barrier and non-uniform perfusion within GBM tissue. In recent years, many investigations have highlighted the role of GBM stem cells (GSCs) and their microenvironment in the initiation and maintenance of tumor tissue. Preclinical and early clinical studies to target GSCs and microenvironmental components are currently underway. Of these strategies, immunotherapy using checkpoint inhibitors and redirected cytotoxic T cells have shown promising results in early investigations. But, GBM microenvironment is heterogenous and recent investigations have shown cell populations within this microenvironment to be plastic. These studies underline the importance of identifying the role of and targeting multiple cell populations within the GBM microenvironment which could have a synergistic effect when combined with novel therapies. Pericytes are multipotent perivascular cells that play a vital role within the GBM microenvironment by assisting in tumor initiation, survival, and progression. Due to their role in regulating the blood-brain barrier permeability, promoting angiogenesis, tumor growth, clearing extracellular matrix for infiltrating GBM cells and in helping GBM cells evade immune surveillance, pericytes could be ideal therapeutic targets for stymieing or exploiting their role within the GBM microenvironment. This chapter will introduce hallmarks of GBM and elaborate on the contributions of pericytes to these hallmarks by examining recent findings. In addition, the chapter also highlights the therapeutic value of targeting pericytes, while discussing conventional and novel GBM therapies and obstacles to their efficacy.
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Affiliation(s)
- Anirudh Sattiraju
- Department of Radiology, Columbia University Irving Medical Center, New York, NY, USA
| | - Akiva Mintz
- Department of Radiology, Columbia University Irving Medical Center, New York, NY, USA.
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Abstract
Skeletal muscle regeneration is a highly orchestrated process and involves the activation of many cellular and molecular pathways. Although satellite cells (SCs) are the major cell type responsible for muscle regeneration, pericytes show remarkable myogenic potential and various advantages as cell therapy in muscular disorders. This chapter first introduces the structure, marker expression, origin, and category of pericytes. Next, we discuss their functions in muscular dystrophy and/or muscle injuries, focusing on their myogenic, adipogenic, fibrogenic, chondrogenic, and osteogenic activities. Understanding this knowledge will promote the development of innovative cell therapies for muscle disorders, including muscular dystrophy.
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43
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Guerra DAP, Paiva AE, Sena IFG, Azevedo PO, Silva WN, Mintz A, Birbrair A. Targeting glioblastoma-derived pericytes improves chemotherapeutic outcome. Angiogenesis 2018; 21:667-675. [PMID: 29761249 PMCID: PMC6238207 DOI: 10.1007/s10456-018-9621-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 05/08/2018] [Indexed: 12/12/2022]
Abstract
Glioblastoma is the most common malignant brain cancer in adults, with poor prognosis. The blood-brain barrier limits the arrival of several promising anti-glioblastoma drugs, and restricts the design of efficient therapies. Recently, by using state-of-the-art technologies, including thymidine kinase targeting system in combination with glioblastoma xenograft mouse models, it was revealed that targeting glioblastoma-derived pericytes improves chemotherapy efficiency. Strikingly, ibrutinib treatment enhances chemotherapeutic effectiveness, by targeting pericytes, improving blood-brain barrier permeability, and prolonging survival. This study identifies glioblastoma-derived pericyte as a novel target in the brain tumor microenvironment during carcinogenesis. Here, we summarize and evaluate recent advances in the understanding of pericyte's role in the glioblastoma microenvironment.
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Affiliation(s)
- Daniel A P Guerra
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ana E Paiva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Isadora F G Sena
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Patrick O Azevedo
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
- Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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44
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Silva WN, Leonel C, Prazeres PHDM, Sena IFG, Guerra DAP, Heller D, Diniz IMA, Fortuna V, Mintz A, Birbrair A. Role of Schwann cells in cutaneous wound healing. Wound Repair Regen 2018; 26:392-397. [PMID: 30098299 PMCID: PMC6289698 DOI: 10.1111/wrr.12647] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/01/2018] [Indexed: 12/20/2022]
Abstract
Dermal wound healing is the process of repairing and remodeling skin following injury. Delayed or aberrant cutaneous healing poses a challenge for the health care system. The lack of detailed understanding of cellular and molecular mechanisms involved in this process hampers the development of effective targeted treatments. In a recent study, Parfejevs et al.-using state-of-the-art technologies, including in vivo sophisticated Cre/loxP techniques in combination with a mouse model of excisional cutaneous wounding-reveal that Schwann cells induce adult dermal wound healing. Strikingly, genetic ablation of Schwann cells delays wound contraction and closure, decreases myofibroblast formation, and impairs skin re-epithelization after injury. From a drug development perspective, Schwann cells are a new cellular candidate to be activated to accelerate skin healing. Here, we summarize and evaluate recent advances in the understanding of Schwann cells roles in the skin microenvironment.
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Affiliation(s)
- Walison N. Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Caroline Leonel
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Isadora F. G. Sena
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Daniel A. P. Guerra
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Debora Heller
- Experimental Research Center, Albert Einstein Israeli Hospital, São Paulo, SP, Brazil
- School of Dentistry, Cruzeiro do Sul University, São Paulo, SP, Brazil
| | - Ivana M. A. Diniz
- Department of Restorative Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vitor Fortuna
- Health Science Institute, Federal University of Bahia, Salvador, BA, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
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45
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Gomes JP, Coatti GC, Valadares MC, Assoni AF, Pelatti MV, Secco M, Zatz M. Human Adipose-Derived CD146+ Stem Cells Increase Life Span of a Muscular Dystrophy Mouse Model More Efficiently than Mesenchymal Stromal Cells. DNA Cell Biol 2018; 37:798-804. [DOI: 10.1089/dna.2018.4158] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Affiliation(s)
- Juliana P. Gomes
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
| | - Giuliana C. Coatti
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
| | - Marcos C. Valadares
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
| | - Amanda F. Assoni
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
| | - Mayra V. Pelatti
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
| | - Mariane Secco
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
| | - Mayana Zatz
- Human Genome and Stem-Cell Research Center, Institute of Biosciences, University of São Paulo, São Paulo, SP, Brazil
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46
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Sakuma R, Takahashi A, Nakano-Doi A, Sawada R, Kamachi S, Beppu M, Takagi T, Yoshimura S, Matsuyama T, Nakagomi T. Comparative Characterization of Ischemia-Induced Brain Multipotent Stem Cells with Mesenchymal Stem Cells: Similarities and Differences. Stem Cells Dev 2018; 27:1322-1338. [PMID: 29999479 DOI: 10.1089/scd.2018.0075] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are multipotent stem cells localized to the perivascular regions of various organs, including bone marrow (BM). While MSC transplantation represents a promising stem cell-based therapy for ischemic stroke, increasing evidence indicates that exogenously administered MSCs rarely accumulate in the injured central nervous system (CNS). Therefore, compared with MSCs, regionally derived brain multipotent stem cells may be a superior source to elicit regeneration of the CNS following ischemic injury. We previously identified ischemia-induced multipotent stem cells (iSCs) as likely originating from brain pericytes/perivascular cells (PCs) within poststroke regions. However, detailed characteristics of iSCs and their comparison with MSCs remains to be investigated. In the present study, we compared iSCs with BM-derived MSCs, with a focus on the stemness and neuron-generating activity of each cell type. From our results, stem and undifferentiated cell markers, including c-myc and Klf4, were found to be expressed in iSCs and BM-MSCs. In addition, both cell types exhibited the ability to differentiate into mesoderm lineages, including as osteoblasts, adipocytes, and chondrocytes. However, compared with BM-MSCs, high expression of neural stem cell markers, including nestin and Sox2, were found in iSCs. In addition, iSCs, but not BM-MSCs, formed neurosphere-like cell clusters that differentiated into functional neurons. These results demonstrate that iSCs are likely multipotent stem cells with the ability to differentiate into not only mesoderm, but also neural, lineages. Collectively, our novel findings suggest that locally induced iSCs may contribute to CNS repair by producing neuronal cells following ischemic stroke.
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Affiliation(s)
- Rika Sakuma
- 1 Institute for Advanced Medical Sciences , Hyogo College of Medicine, Nishinomiya, Japan
| | - Ai Takahashi
- 1 Institute for Advanced Medical Sciences , Hyogo College of Medicine, Nishinomiya, Japan .,2 Graduate School of Science and Technology, Kwansei Gakuin University , Sanda, Japan
| | - Akiko Nakano-Doi
- 1 Institute for Advanced Medical Sciences , Hyogo College of Medicine, Nishinomiya, Japan .,3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine , Nishinomiya, Japan
| | - Rikako Sawada
- 1 Institute for Advanced Medical Sciences , Hyogo College of Medicine, Nishinomiya, Japan .,2 Graduate School of Science and Technology, Kwansei Gakuin University , Sanda, Japan
| | - Saeko Kamachi
- 3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine , Nishinomiya, Japan
| | - Mikiya Beppu
- 4 Department of Neurosurgery, Hyogo College of Medicine , Nishinomiya, Japan
| | - Toshinori Takagi
- 4 Department of Neurosurgery, Hyogo College of Medicine , Nishinomiya, Japan
| | - Shinichi Yoshimura
- 4 Department of Neurosurgery, Hyogo College of Medicine , Nishinomiya, Japan
| | - Tomohiro Matsuyama
- 3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine , Nishinomiya, Japan
| | - Takayuki Nakagomi
- 1 Institute for Advanced Medical Sciences , Hyogo College of Medicine, Nishinomiya, Japan .,3 Department of Therapeutic Progress in Brain Diseases, Hyogo College of Medicine , Nishinomiya, Japan
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47
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de Alvarenga EC, Silva WN, Vasconcellos R, Paredes-Gamero EJ, Mintz A, Birbrair A. Promyelocytic leukemia protein in mesenchymal stem cells is essential for leukemia progression. Ann Hematol 2018; 97:1749-1755. [PMID: 30069705 DOI: 10.1007/s00277-018-3463-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 07/25/2018] [Indexed: 12/28/2022]
Abstract
The dynamic interactions between leukemic cells and cells resident within the bone marrow microenvironment are vital for leukemia progression. The lack of detailed knowledge about the cellular and molecular mechanisms involved in this cross-talk restricts the design of effective treatments. Guarnerio et al. (2018) by using state-of-the-art techniques, including sophisticated Cre/loxP technologies in combination with leukemia mouse models, reveal that mesenchymal stem cells via promyelocytic leukemia protein (Pml) maintain leukemic cells in the bone marrow niche. Strikingly, genetic deletion of Pml in mesenchymal stem cells raised survival of leukemic mice under chemotherapeutic treatment. The emerging knowledge from this research provides a novel target in the bone marrow niche for therapeutic benefit in leukemia.
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Affiliation(s)
- Erika Costa de Alvarenga
- Department of Natural Sciences, Federal University of São João del Rei, São João Del Rey, MG, Brazil
| | - Walison N Silva
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rebecca Vasconcellos
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Edgar J Paredes-Gamero
- Department of Biochemistry, Federal University of São Paulo, São Paulo, SP, Brazil.,Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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48
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Coatti GC, Frangini M, Valadares MC, Gomes JP, Lima NO, Cavaçana N, Assoni AF, Pelatti MV, Birbrair A, de Lima ACP, Singer JM, Rocha FMM, Da Silva GL, Mantovani MS, Macedo-Souza LI, Ferrari MFR, Zatz M. Pericytes Extend Survival of ALS SOD1 Mice and Induce the Expression of Antioxidant Enzymes in the Murine Model and in IPSCs Derived Neuronal Cells from an ALS Patient. Stem Cell Rev Rep 2018; 13:686-698. [PMID: 28710685 DOI: 10.1007/s12015-017-9752-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Amyotrophic Lateral Sclerosis (ALS) is one of the most common adult-onset motor neuron disease causing a progressive, rapid and irreversible degeneration of motor neurons in the cortex, brain stem and spinal cord. No effective treatment is available and cell therapy clinical trials are currently being tested in ALS affected patients. It is well known that in ALS patients, approximately 50% of pericytes from the spinal cord barrier are lost. In the central nervous system, pericytes act in the formation and maintenance of the blood-brain barrier, a natural defense that slows the progression of symptoms in neurodegenerative diseases. Here we evaluated, for the first time, the therapeutic effect of human pericytes in vivo in SOD1 mice and in vitro in motor neurons and other neuronal cells derived from one ALS patient. Pericytes and mesenchymal stromal cells (MSCs) were derived from the same adipose tissue sample and were administered to SOD1 mice intraperitoneally. The effect of the two treatments was compared. Treatment with pericytes extended significantly animals survival in SOD1 males, but not in females that usually have a milder phenotype with higher survival rates. No significant differences were observed in the survival of mice treated with MSCs. Gene expression analysis in brain and spinal cord of end-stage animals showed that treatment with pericytes can stimulate the host antioxidant system. Additionally, pericytes induced the expression of SOD1 and CAT in motor neurons and other neuronal cells derived from one ALS patient carrying a mutation in FUS. Overall, treatment with pericytes was more effective than treatment with MSCs. Our results encourage further investigations and suggest that pericytes may be a good option for ALS treatment in the future. Graphical Abstract ᅟ.
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Affiliation(s)
- Giuliana Castello Coatti
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Miriam Frangini
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, OH, USA
| | - Marcos C Valadares
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Juliana Plat Gomes
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Natalia O Lima
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Natale Cavaçana
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Amanda F Assoni
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Mayra V Pelatti
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Alexander Birbrair
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Pathology, University Federal of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Julio M Singer
- Department of Statistics, University of Sao Paulo (USP), Sao Paulo, SP, Brazil
| | | | | | | | - Lucia Inês Macedo-Souza
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Merari F R Ferrari
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil
| | - Mayana Zatz
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo (USP), Rua do Matāo 106, São Paulo, SP, CEP 05508-030, Brazil.
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49
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Reckmann AN, Tomczyk CUM, Davidoff MS, Michurina TV, Arnhold S, Müller D, Mietens A, Middendorff R. Nestin in the epididymis is expressed in vascular wall cells and is regulated during postnatal development and in case of testosterone deficiency. PLoS One 2018; 13:e0194585. [PMID: 29874225 PMCID: PMC5991371 DOI: 10.1371/journal.pone.0194585] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 03/06/2018] [Indexed: 12/24/2022] Open
Abstract
Vascular smooth muscle cells (SMCs), distinguished by the expression of the neuronal stem cell marker nestin, may represent stem cell-like progenitor cells in various organs including the testis. We investigated epididymal tissues of adult nestin-GFP mice, rats after Leydig cell depletion via ethane dimethane sulfonate (EDS), rats and mice during postnatal development and human tissues. By use of Clarity, a histochemical method to illustrate a three-dimensional picture, we could demonstrate nestin-GFP positive cells within the vascular network. We localized nestin in the epididymis in proliferating vascular SMCs by colocalization with both smooth muscle actin and PCNA, and it was distinct from CD31-positive endothelial cells. The same nestin localization was found in the human epididymis. However, nestin was not found in SMCs of the epididymal duct. Nestin expression is high during postnatal development of mouse and rat and down-regulated towards adulthood when testosterone levels increase. Nestin increases dramatically in rats after Leydig cell ablation with EDS and subsequently low testosterone levels. Interestingly, during this period, the expression of androgen receptor in the epididymis is low and increases until nestin reaches normal levels of adulthood. Here we show that nestin, a common marker for neuronal stem cells, is also expressed in the vasculature of the epididymis. Our results give new insights into the yet underestimated role of proliferating nestin-expressing vascular SMCs during postnatal development and repair of the epididymis.
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Affiliation(s)
- Ansgar N Reckmann
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Claudia U M Tomczyk
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Michail S Davidoff
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tatyana V Michurina
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States of America
- Center for Developmental Genetics and Department of Anesthesiology, Stony Brook University, Stony Brook, NY, United States of America
- Moscow Institute of Physics and Technology, Moscow, Russia
| | - Stefan Arnhold
- Institute of Veterinary Anatomy, Histology and Embryology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Dieter Müller
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Andrea Mietens
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Ralf Middendorff
- Institute of Anatomy and Cell Biology, Justus-Liebig-University Giessen, Giessen, Germany
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50
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Prazeres PHDM, Turquetti AOM, Azevedo PO, Barreto RSN, Miglino MA, Mintz A, Delbono O, Birbrair A. Perivascular cell αv integrins as a target to treat skeletal muscle fibrosis. Int J Biochem Cell Biol 2018; 99:109-113. [PMID: 29627438 PMCID: PMC6159891 DOI: 10.1016/j.biocel.2018.04.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 02/06/2023]
Abstract
Fibrosis following injury leads to aberrant regeneration and incomplete functional recovery of skeletal muscle, but the lack of detailed knowledge about the cellular and molecular mechanisms involved hampers the design of effective treatments. Using state-of-the-art technologies, Murray et al. (2017) found that perivascular PDGFRβ-expressing cells generate fibrotic cells in the skeletal muscle. Strikingly, genetic deletion of αv integrins from perivascular PDGFRβ-expressing cells significantly inhibited skeletal muscle fibrosis without affecting muscle vascularization or regeneration. In addition, the authors showed that a small molecule inhibitor of αv integrins, CWHM 12, attenuates skeletal muscle fibrosis. From a drug-development perspective, this study identifies a new cellular and molecular target to treat skeletal muscle fibrosis.
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Affiliation(s)
- Pedro H D M Prazeres
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Anaelise O M Turquetti
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| | - Patrick O Azevedo
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Rodrigo S N Barreto
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| | - Maria A Miglino
- Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Osvaldo Delbono
- Department of Internal Medicine-Gerontology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil; Anatomy of Domestic and Wild Animals Program, Department of Surgery, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, SP, Brazil; Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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