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Bertheuil N, Chaput B, Ménard C, Varin A, Laloze J, Watier E, Tarte K. Adipose mesenchymal stromal cells: Definition, immunomodulatory properties, mechanical isolation and interest for plastic surgery. ANN CHIR PLAST ESTH 2019; 64:1-10. [DOI: 10.1016/j.anplas.2018.07.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 07/13/2018] [Indexed: 12/14/2022]
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52
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Najar M, Ouhaddi Y, Bouhtit F, Melki R, Afif H, Boukhatem N, Merimi M, Fahmi H. Empowering the immune fate of bone marrow mesenchymal stromal cells: gene and protein changes. Inflamm Res 2018; 68:167-176. [PMID: 30426152 DOI: 10.1007/s00011-018-1198-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 10/23/2018] [Accepted: 11/07/2018] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVE AND DESIGN Bone marrow mesenchymal stromal cells (BM-MSCs) are referred as a promising immunotherapeutic cell product. New approaches using empowered MSCs should be developed as for the treatment or prevention of different immunological diseases. Such preconditioning by new licensing stimuli will empower the immune fate of BM-MSCs and, therefore, promote a better and more efficient biological. Here, our main goal was to establish the immunological profile of BM-MSCs following inflammatory priming and in particular their capacity to adjust their immune-related proteome and transcriptome. MATERIAL AND METHODS To run this study, we have used BM-MSC cell cultures, a pro-inflammatory cytokine cocktail priming, flow cytometry analysis, qPCR and ELISA techniques. RESULTS Different expression levels of several immunological mediators such as COX-1, COX-2, LIF, HGF, Gal-1, HO-1, IL-11, IL-8, IL-6 and TGF-β were constitutively observed in BM-MSCs. Inflammation priming substantially but differentially modulated the gene and protein expression profiles of these mediators. Thus, expressions of COX-2, LIF, HGF, IL-11, IL-8 and IL-6 were highly increased/induced and those of COX-1, Gal-1, and TGF-β were reduced. CONCLUSIONS Collectively, we demonstrated that BM-MSCs are endowed with a specific and modular regulatory machinery which is potentially involved in immunomodulation. Moreover, BM-MSCs are highly sensitive to inflammation and respond to such signal by properly adjusting their gene and protein expression of regulatory factors. Using such preconditioning may empower the immune fate of MSCs and, therefore, enhance their value for cell-based immunotherapy.
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Affiliation(s)
- Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada.
| | - Yassine Ouhaddi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada
| | - Fatima Bouhtit
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Rahma Melki
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Hassan Afif
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada
| | - Noureddine Boukhatem
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco
| | - Makram Merimi
- Laboratory of Physiology, Ethnopharmacology and Genetics, Faculty of Sciences, University Mohammed Premier, Oujda, Morocco.,Laboratory of Experimental Hematology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Department of Medicine, University of Montreal, 900 Saint-Denis, R11.424, Montreal, QC, H2X 0A9, Canada.
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53
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Nahar S, Nakashima Y, Miyagi-Shiohira C, Kinjo T, Kobayashi N, Saitoh I, Watanabe M, Noguchi H, Fujita J. A Comparison of Proteins Expressed between Human and Mouse Adipose-Derived Mesenchymal Stem Cells by a Proteome Analysis through Liquid Chromatography with Tandem Mass Spectrometry. Int J Mol Sci 2018; 19:E3497. [PMID: 30404232 PMCID: PMC6274862 DOI: 10.3390/ijms19113497] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/27/2018] [Accepted: 11/04/2018] [Indexed: 12/20/2022] Open
Abstract
Adipose-derived mesenchymal stem cells (ADSCs) have become a common cell source for cell transplantation therapy. Clinical studies have used ADSCs to develop treatments for tissue fibrosis, such as liver cirrhosis and pulmonary fibroma. The need to examine and compare basic research data using clinical research data derived from mice and humans is expected to increase in the future. Here, to better characterize the cells, the protein components expressed by human ADSCs used for treatment, and mouse ADSCs used for research, were comprehensively analyzed by liquid chromatography with tandem mass spectrometry. We found that 92% (401 type proteins) of the proteins expressed by ADSCs in humans and mice were consistent. When classified by the protein functions in a gene ontology analysis, the items that differed by >5% between human and mouse ADSCs were "biological adhesion, locomotion" in biological processes, "plasma membrane" in cellular components, and "antioxidant activity, molecular transducer activity" in molecular functions. Most of the listed proteins were sensitive to cell isolation processes. These results show that the proteins expressed by human and murine ADSCs showed a high degree of correlation.
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Affiliation(s)
- Saifun Nahar
- Department of Infectious, Respiratory and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | - Yoshiki Nakashima
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | - Chika Miyagi-Shiohira
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | - Takao Kinjo
- Department of Basic Laboratory Sciences, School of Health Sciences in the Faculty of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | | | - Issei Saitoh
- Division of Pediatric Dentistry, Graduate School of Medical and Dental Science, Niigata University, Niigata 951-8514, Japan.
| | - Masami Watanabe
- Department of Urology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Hirofumi Noguchi
- Department of Regenerative Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
| | - Jiro Fujita
- Department of Infectious, Respiratory and Digestive Medicine, Graduate School of Medicine, University of the Ryukyus, Okinawa 903-0215, Japan.
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54
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Blackshear CP, Borrelli MR, Shen EZ, Ransom RC, Chung NN, Vistnes SM, Irizarry D, Nazerali R, Momeni A, Longaker MT, Wan DC. Utilizing Confocal Microscopy to Characterize Human and Mouse Adipose Tissue. Tissue Eng Part C Methods 2018; 24:566-577. [PMID: 30215305 DOI: 10.1089/ten.tec.2018.0154] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Significant advances in our understanding of human obesity, endocrinology, and metabolism have been made possible by murine comparative models, in which anatomically analogous fat depots are utilized; however, current research has questioned how truly analogous these depots are. In this study, we assess the validity of the analogy from the perspective of cellular architecture. Whole tissue mounting, confocal microscopy, and image reconstruction software were used to characterize the three-dimensional structure of the inguinal fat pad in mice, gluteofemoral fat in humans, and subcutaneous adipose tissue of the human abdominal wall. Abdominal and gluteofemoral adipose tissue specimens from 12 human patients and bilateral inguinal fat pads from 12 mice were stained for adipocytes, blood vessels, and a putative marker for adipose-derived multipotent progenitor cells, cluster of differentiation 34 (CD34). Samples were whole-mounted and imaged with laser scanning confocal microscopy. Expectedly, human adipocytes were larger and demonstrated greater size heterogeneity. Mouse fat displayed significantly higher vascular density compared with human fat when normalized to adipocyte count. There was no significant difference in the concentration of CD34-positive (CD34+) stromal cells from either species. However, the mean distance between CD34+ stromal cells and blood vessels was significantly greater in human fat. Finally, mouse inguinal fat contained larger numbers of brown adipocytes than did human gluteofemoral or human abdominal fat. Overall, the basic architecture of human adipose tissue differs significantly from that of mice. Insofar as human gluteofemoral fat differs from human abdominal adipose tissue, it was closer to mouse inguinal fat, being its comparative developmental analog. These differences likely confer variance in functional properties between the two sources and thus must be considered when designing murine models of human disease.
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Affiliation(s)
- Charles P Blackshear
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Mimi R Borrelli
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Ethan Z Shen
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - R Chase Ransom
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Natalie N Chung
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Stephanie M Vistnes
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Dre Irizarry
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Rahim Nazerali
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Arash Momeni
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
| | - Michael T Longaker
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California.,2 Institute for Stem Cell Research and Regenerative Medicine, Stanford University School of Medicine , Stanford, California
| | - Derrick C Wan
- 1 Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Plastic and Reconstructive Surgery Division, Stanford University School of Medicine , Stanford, California
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55
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Sadie-Van Gijsen H. Adipocyte biology: It is time to upgrade to a new model. J Cell Physiol 2018; 234:2399-2425. [PMID: 30192004 DOI: 10.1002/jcp.27266] [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] [Received: 12/13/2017] [Accepted: 07/25/2018] [Indexed: 12/15/2022]
Abstract
Globally, the obesity pandemic is profoundly affecting quality of life and economic productivity, but efforts to address this, especially on a pharmacological level, have generally proven unsuccessful to date, serving as a stark demonstration that our understanding of adipocyte biology and pathophysiology is incomplete. To deliver better insight into adipocyte function and obesity, we need improved adipocyte models with a high degree of fidelity in representing the in vivo state and with a diverse range of experimental applications. Adipocyte cell lines, especially 3T3-L1 cells, have been used extensively over many years, but these are limited in terms of relevance and versatility. In this review, I propose that primary adipose-derived stromal/stem cells (ASCs) present a superior model with which to study adipocyte biology ex vivo. In particular, ASCs afford us the opportunity to study adipocytes from different, functionally distinct, adipose depots and to investigate, by means of in vivo/ex vivo studies, the effects of many different physiological and pathophysiological factors, such as age, body weight, hormonal status, diet and nutraceuticals, as well as disease and pharmacological treatments, on the biology of adipocytes and their precursors. This study will give an overview of the characteristics of ASCs and published studies utilizing ASCs, to highlight the areas where our knowledge is lacking. More comprehensive studies in primary ASCs will contribute to an improved understanding of adipose tissue, in healthy and dysfunctional states, which will enhance our efforts to more successfully manage and treat obesity.
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Affiliation(s)
- Hanél Sadie-Van Gijsen
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa.,Division of Medical Physiology, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Parow, South Africa
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56
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Waldner M, Zhang W, James IB, Allbright K, Havis E, Bliley JM, Almadori A, Schweizer R, Plock JA, Washington KM, Gorantla VS, Solari MG, Marra KG, Rubin JP. Characteristics and Immunomodulating Functions of Adipose-Derived and Bone Marrow-Derived Mesenchymal Stem Cells Across Defined Human Leukocyte Antigen Barriers. Front Immunol 2018; 9:1642. [PMID: 30087676 PMCID: PMC6066508 DOI: 10.3389/fimmu.2018.01642] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 07/04/2018] [Indexed: 12/29/2022] Open
Abstract
Background Vascularized composite allotransplantation opens new possibilities in reconstructive transplantation such as hand or face transplants. Lifelong immunosuppression and its side-effects are the main drawbacks of this procedure. Mesenchymal stem cells (MSCs) have clinically useful immunomodulatory effects and may be able to reduce the burden of chronic immunosuppression. Herein, we assess and compare characteristics and immunomodulatory capacities of bone marrow- and adipose tissue-derived MSCs isolated from the same human individual across defined human leukocyte antigen (HLA) barriers. Materials and methods Samples of omental (o.) adipose tissue, subcutaneous (s.c.) adipose tissue, and bone marrow aspirate from 10 human organ donors were retrieved and MSCs isolated. Cells were characterized by flow cytometry and differentiated in three lineages: adipogenic, osteogenic, and chondrogenic. In mixed lymphocyte reactions, the ability of adipose-derived mesenchymal stem cells (ASCs) and bone marrow-derived mesenchymal stem cells (BMSCs) to suppress the immune response was assessed and compared within individual donors. HLA mismatched or mitogen stimulations were analyzed in co-culture with different MSC concentrations. Supernatants were analyzed for cytokine contents. Results All cell types, s.c.ASC, o.ASC, and BMSC demonstrated individual differentiation potential and cell surface markers. Immunomodulating effects were dependent on dose and cell passage. Proliferation of responder cells was most effectively suppressed by s.c.ASCs and combination with BMSC resulted in highly efficient immunomodulation. Immunomodulation was not cell contact-dependent and cells demonstrated a specific cytokine secretion. Conclusion When human ASCs and BMSCs are isolated from the same individual, both show effective immunomodulation across defined HLA barriers in vitro. We demonstrate a synergistic effect when cells from the same biologic system were combined. This cell contact-independent function underlines the potential of clinical systemic application of MSCs.
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Affiliation(s)
- Matthias Waldner
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Zurich, Switzerland
| | - Wensheng Zhang
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Isaac B James
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kassandra Allbright
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Emmanuelle Havis
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jacqueline M Bliley
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Aurora Almadori
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Riccardo Schweizer
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Zurich, Switzerland
| | - Jan A Plock
- Division of Plastic Surgery and Hand Surgery, University Hospital Zurich, Zurich, Zurich, Switzerland
| | - Kia M Washington
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Vijay S Gorantla
- Wake Forest Institute for Regenerative Medicine, Wake Forest University, Winston-Salem, NC, United States
| | - Mario G Solari
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kacey G Marra
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - J Peter Rubin
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
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57
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Dessels C, Durandt C, Pepper MS. Comparison of human platelet lysate alternatives using expired and freshly isolated platelet concentrates for adipose-derived stromal cell expansion. Platelets 2018; 30:356-367. [PMID: 29553865 DOI: 10.1080/09537104.2018.1445840] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Pooled human platelet lysate (pHPL) has been used to expand adipose-derived stromal cells (ASCs) and can be formulated using fresh or expired buffy coats (BCs) which are then resuspended in either plasma or an additive solution. Not much is known about the effects that expired products and additive solutions have on ASC expansion, and the need for quality control and release criteria has been expressed. This pilot study compared proliferation, cell size, morphology and immunophenotype of ASCs expanded in the different pHPL alternatives versus foetal bovine serum (FBS). Quality control criteria were assessed prior to and during the manufacture of the pHPL alternatives. ASCs were then expanded in 1%, 2.5%, 5% or 10% of the different pHPL alternatives or in 10% FBS. Cell size, morphology, cell number and immunophenotype were measured using microscopy and flow cytometry. The majority of the pHPL alternatives were within the recommended ranges for the quality control criteria. ASCs expanded in the pHPL alternatives were smaller in size, displayed a tighter spindle-shaped morphology, increased cell growth and had a similar immunophenotype (with the exception of CD34 and CD36) when compared to ASCs expanded in FBS. Here we report on the effects that expired BC products and additive solutions have on ASC expansion. When taken together, our findings indicate that all of the pHPL alternatives can be considered to be suitable replacements for FBS for ASC expansion, and that expired BC products can be used as an alternative to fresh BC products.
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Affiliation(s)
- Carla Dessels
- a Institute for Cellular and Molecular Medicine, Department of Immunology, SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences , University of Pretoria , Pretoria , South Africa
| | - Chrisna Durandt
- a Institute for Cellular and Molecular Medicine, Department of Immunology, SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences , University of Pretoria , Pretoria , South Africa
| | - Michael S Pepper
- a Institute for Cellular and Molecular Medicine, Department of Immunology, SAMRC Extramural Unit for Stem Cell Research and Therapy, Faculty of Health Sciences , University of Pretoria , Pretoria , South Africa
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58
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Oliva-Olivera W, Coín-Aragüez L, Lhamyani S, Salas J, Gentile AM, Romero-Zerbo SY, Zayed H, Valderrama J, Tinahones FJ, El Bekay R. Differences in the neovascular potential of thymus versus subcutaneous adipose-derived stem cells from patients with myocardial ischaemia. J Tissue Eng Regen Med 2018; 12:e1772-e1784. [PMID: 29024495 DOI: 10.1002/term.2585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 07/19/2017] [Accepted: 10/03/2017] [Indexed: 12/13/2022]
Abstract
Adipose tissue-derived multipotent mesenchymal cells (ASCs) participate in the information of blood vessels under hypoxic conditions. It is probable that the susceptibility of ASCs to the influence of age and ageing-associated pathologies compromises their therapeutic effectiveness depending on the adipose tissue depot. Our aim was to examine the neovascular potential under hypoxic conditions of ASCs-derived from thymic (thymASCs) and subcutaneous (subASCs) adipose tissue from 39 subjects with and without type 2 diabetes mellitus (T2DM) and of different ages who were undergoing coronary bypass surgery. We confirmed a significant decrease in the percentage of CD34+ CD31- CD45- subASCs in the cell yield of subASCs and in the survival of cultured endothelial cells in the medium conditioned by the hypox-subASCs with increasing patient age, which was not observed in thymASCs. Whereas the length of the tubules generated by hypox-subASCs tended to correlate negatively with patient age, tubule formation capacity of the hypoxic thymASCs increased significantly. Compared with subASCs, thymASCs from subjects over age 65 and without T2DM showed higher cell yield, tubule formation capacity, vascular endothelial growth factor secretion levels, and ability to promote endothelial cell survival in their conditioned medium. Deterioration in subASCs neovascular potential relative to thymASCs derived from these subjects was accompanied by higher expression levels of NOX4 mRNA and fibrotic proteins. Our results indicate that thymASCs from patients over age 65 and without T2DM have a higher angiogenic potential than those from the other patient groups, suggesting they may be a good candidate for angiogenic therapy in subjects undergoing coronary bypass surgery.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Clinical Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Malaga, Spain.,CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Clinical Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Malaga, Spain.,CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain
| | | | - Julián Salas
- Cardiovascular Surgery Department, Carlos Haya University Hospital, Malaga, Spain
| | | | - Silvana-Yanina Romero-Zerbo
- Unidad de Gestión Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Malaga, Spain.,Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Malaga, Spain
| | - Hatem Zayed
- Biomedical Sciences Program, Health Sciences Department, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Jf Valderrama
- Cardiovascular Surgery Department, Carlos Haya University Hospital, Malaga, Spain
| | - Francisco José Tinahones
- Department of Clinical Endocrinology and Nutrition, Institute of Biomedical Research of Málaga (IBIMA), Clinical Hospital of Málaga (Virgen de la Victoria), University of Málaga (UMA), Malaga, Spain.,CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain
| | - Rajaa El Bekay
- CIBER-The Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Malaga, Spain.,Unidad de Gestión Clínica Intercentros de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga/Universidad de Málaga, Malaga, Spain
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59
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Investigating the mincing method for isolation of adipose-derived stem cells from pregnant women fat. Cytotechnology 2017; 70:55-66. [PMID: 29234944 DOI: 10.1007/s10616-017-0162-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 11/09/2017] [Indexed: 01/16/2023] Open
Abstract
The success of stem cell application in regenerative medicine, usually require a stable source of stem or progenitor cells. Fat tissue represents a good source of stem cells because it is rich in stem cells and there are fewer ethical issues related to the use of such stem cells, unlike embryonic stem cells. Therefore, there has been increased interest in adipose-derived stem cells (ADSCs) for tissue engineering applications. Here, we aim to provide an easy processing method for isolating adult stem cells from human adipose tissue harvested from the subcutaneous fat of the abdominal wall during gynecologic surgery. We used a homogenizer to mince fat and compared the results with those obtained from the traditional cut method involving a sterile scalpel and forceps. Our results showed that our method provides another stable and quality source of stem cells that could be used in cases with a large quantity of fat. Furthermore, we found that pregnancy adipose-derived stem cells (P-ADSCs) could be maintained in vitro for extended periods with a stable population doubling and low senescence levels. P-ADSCs could also differentiate in vitro into adipogenic, osteogenic, chondrogenic, and insulin-producing cells in the presence of lineage-specific induction factors. In conclusion, like human lipoaspirates, adipose tissues obtained from pregnant women contain multipotent cells with better proliferation and showed great promise for use in both stem cell banking studies as well as in stem cell therapy.
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60
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Adult Stem Cells of Orofacial Origin: Current Knowledge and Limitation and Future Trend in Regenerative Medicine. Tissue Eng Regen Med 2017; 14:719-733. [PMID: 30603522 DOI: 10.1007/s13770-017-0078-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/19/2017] [Accepted: 08/04/2017] [Indexed: 12/21/2022] Open
Abstract
Stem cell research is one of the most rapidly expanding field of medicine which provides significant opportunities for therapeutic and regenerative applications. Different types of stem cells have been isolated investigating their accessibility, control of the differentiation pathway and additional immunomodulatory properties. Bulk of the literature focus has been on the study and potential applications of adult stem cells (ASC) because of their low immunogenicity and reduced ethical considerations. This review paper summarizes the basic available literature on different types of ASC with special focus on stem cells from dental and orofacial origin. ASC have been isolated from different sources, however, isolation of ASC from orofacial tissues has provided a novel promising alternative. These cells offer a great potential in the future of therapeutic and regenerative medicine because of their remarkable availability at low cost while allowing minimally invasive isolation procedures. Furthermore, their immunomodulatory and anti-inflammatory potential is of particular interest. However, there are conflicting reports in the literature regarding their particular biology and full clinical potentials. Sound knowledge and higher control over proliferation and differentiation mechanisms are prerequisites for clinical applications of these cells. Therefore, further standardized basic and translational studies are required to increase the reproducibility and reduce the controversies of studies, which in turn facilitate comparison of related literature and enhance further development in the field.
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61
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Konstantinow A, Arnold A, Djabali K, Kempf W, Gutermuth J, Fischer T, Biedermann T. Therapy of ulcus cruris of venous and mixed venous arterial origin with autologous, adult, native progenitor cells from subcutaneous adipose tissue: a prospective clinical pilot study. J Eur Acad Dermatol Venereol 2017; 31:2104-2118. [PMID: 28750144 DOI: 10.1111/jdv.14489] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/11/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND The stromal vascular fraction (SVF) of adipose tissue consists of cellular subpopulations with distinct regenerative potential. OBJECTIVE To investigate the regenerative capacities of autologous SVF cells in the treatment of chronic leg ulcers of venous (VLU) and arterial-venous (AVLU) origin. METHODS Multimorbid ulcer patients received a singular topical treatment with 9-15 × 106 SVF cells, separated from abdominal lipoaspirates by digestion with collagenase and neutral protease and applied immediately after isolation. The primary endpoints were the change in wound size 12 weeks after treatment and evaluation of adverse events. Secondary endpoints included the time to complete wound epithelialization and change in pain levels. Postoperative wound treatment modalities and treatment of comorbidities were not intensified compared with pre-operative management. Follow-up period was at least 6 months. RESULTS Sixteen elderly ulcer patients (seven with VLU, nine with AVLU) were treated as described. All VLU patients (median ulcer size: 48.25 cm2 ) and four of nine AVLU patients showed complete epithelialization of the ulcers within 71-174 days. In three patients with large ulcerations on both legs, ulcerations on the non-treated, contralateral leg also epithelialized. Patients reported a considerable rapid decrease in pain intensity by 2.5 points on average on a visual scale from 1 to 5 within the first 2 weeks after treatment. The patients were followed up for 9-44 months (median: 30 months). No severe side-effects were observed. CONCLUSIONS The use of SVF cells presents an effective, minimally invasive option for the treatment of VLU and AVLU even in multimorbid patients. In patients with larger predominantly ischaemic AVLU and comorbidities, one-time application of the used amounts of SVF cells was not sufficient in the majority of cases.
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Affiliation(s)
- A Konstantinow
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | - A Arnold
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | - K Djabali
- School of Medicine, Epigenetic of Aging, Technical University Munich, Garching, Germany
| | - W Kempf
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | - J Gutermuth
- Universitair Ziekenhuis Brussel, Brussels, Belgium
| | - T Fischer
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
| | - T Biedermann
- Department of Dermatology and Allergology, Technical University Munich, Munich, Germany
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Najar M, Lagneaux L. Foreskin as a source of immunotherapeutic mesenchymal stromal cells. Immunotherapy 2017; 9:207-217. [PMID: 28128711 DOI: 10.2217/imt-2016-0093] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) have well-characterized properties and thus represent an attractive cell population for use in several therapeutic applications. Due to the limitations and inconveniences associated with classical sources of MSCs, the identification and characterization of alternative sources are required for safe and efficient cell therapy. The skin tissue is currently referred to as a reservoir of cells with therapeutically relevant functions. Historically considered biological waste, foreskin (FSK) is increasingly used to provide immunotherapeutic MSCs for medicinal products. This review discusses for the first time the nature and profile of MSCs within the foreskin tissue and, in particular, their immunobiology. A better immunological characterization and understanding of foreskin-derived cells will be critical for improving MSC-based cellular strategies for immunotherapeutic applications.
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Affiliation(s)
- Mehdi Najar
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Bâtiment de Transfusion (Level +1), Route de Lennik n° 808, 1070 Brussels, Belgium
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles (ULB), Campus Erasme, Bâtiment de Transfusion (Level +1), Route de Lennik n° 808, 1070 Brussels, Belgium
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Bora P, Majumdar AS. Adipose tissue-derived stromal vascular fraction in regenerative medicine: a brief review on biology and translation. Stem Cell Res Ther 2017; 8:145. [PMID: 28619097 PMCID: PMC5472998 DOI: 10.1186/s13287-017-0598-y] [Citation(s) in RCA: 307] [Impact Index Per Article: 43.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Adipose/fat tissue provides an abundant source of stromal vascular fraction (SVF) cells for immediate administration and can also give rise to a substantial number of cultured, multipotent adipose-derived stromal cells (ADSCs). Recently, both SVF and ADSCs have gained wide-ranging translational significance in regenerative medicine. Initially used for cosmetic breast enhancement, this mode of treatment has found use in many diseases involving immune disorders, tissue degeneration, and ischaemic conditions. In this review, we try to address several important aspects of this field, outlining the biology, technology, translation, and challenges related to SVF- and ADSC-based therapies. Starting from the basics of SVF and ADSC isolation, we touch upon recently developed technologies, addressing elements of novel methods and devices under development for point-of-care isolation of SVF. Characterisation of SVF cells and ADSCs is also an evolving area and we look into unusual expression of CD34 antigen as an interesting marker for such purposes. Based on reports involving different cells of the SVF, we draw a potential mode of action, focussing on angiogenesis since it involves multiple cells, unlike immunomodulation which is governed predominantly by ADSCs. We have looked into the latest research, experimental therapies, and clinical trials which are utilising SVF/ADSCs in conditions such as multiple sclerosis, Crohn’s disease, peripheral neuropathy, osteoarthritis, diabetic foot ulcer, and so forth. However, problems have arisen with regards to the lack of proper regulatory guidelines for such therapies and, since the introduction of US Food and Drug Administration draft guidelines and the Reliable and Effective Growth for Regenerative Health Options that Improve Wellness (REGROW) Act, the debate became more public with regards to safe and efficacious use of these cells.
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Affiliation(s)
- Pablo Bora
- Stempeutics Research Private Limited, Akshay Tech Park, # 72&73, 2nd Floor, EPIP Zone, Phase 1, Whitefield, Bangalore, 560066, India.,Present Address: Department of Molecular Biology & Genetics, Faculty of Science, Jihočeská univerzita v Českých Budějovicích (University of South Bohemia), Branišovská 31, 37005, České Budějovice, Czech Republic
| | - Anish S Majumdar
- Stempeutics Research Private Limited, Akshay Tech Park, # 72&73, 2nd Floor, EPIP Zone, Phase 1, Whitefield, Bangalore, 560066, India.
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van Dongen JA, Tuin AJ, Spiekman M, Jansma J, van der Lei B, Harmsen MC. Comparison of intraoperative procedures for isolation of clinical grade stromal vascular fraction for regenerative purposes: a systematic review. J Tissue Eng Regen Med 2017; 12:e261-e274. [PMID: 28084666 DOI: 10.1002/term.2407] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 11/11/2016] [Accepted: 01/09/2017] [Indexed: 12/16/2022]
Abstract
Intraoperative application of the stromal vascular fraction (SVF) of adipose tissue requires a fast and efficient isolation procedure of adipose tissue. This review was performed to systematically assess and compare procedures currently used for the intraoperative isolation of cellular SVF (cSVF) and tissue SVF (tSVF) that still contain the extracellular matrix. Pubmed, EMBASE and the Cochrane central register of controlled trials databases were searched for studies that compare procedures for intraoperative isolation of SVF (searched 28 September 2016). Outcomes of interest were cell yield, viability of cells, composition of SVF, duration, cost and procedure characteristics. Procedures were subdivided into procedures resulting in a cSVF or tSVF. Thirteen out of 3038 studies, evaluating 18 intraoperative isolation procedures, were considered eligible. In general, cSVF and tSVF intraoperative isolation procedures had similar cell yield, cell viability and SVF composition compared to a nonintraoperative (i.e. culture laboratory-based collagenase protocol) control group within the same studies. The majority of intraoperative isolation procedures are less time consuming than nonintraoperative control groups, however. Intraoperative isolation procedures are less time-consuming than nonintraoperative control groups with similar cell yield, viability of cells and composition of SVF, and therefore more suitable for use in the clinic. Nevertheless, none of the intraoperative isolation procedures could be designated as the preferred procedure to isolate SVF. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Joris A van Dongen
- Department of Pathology & Medical Biology, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands.,Department of Plastic Surgery, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands
| | - A Jorien Tuin
- Department of Oral & Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Maroesjka Spiekman
- Department of Pathology & Medical Biology, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands
| | - Johan Jansma
- Department of Oral & Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Berend van der Lei
- Department of Plastic Surgery, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands.,Bergman Clinics, locations Heerenveen, Zwolle and Groningen, the Netherlands
| | - Martin C Harmsen
- Department of Pathology & Medical Biology, University of Groningen and University Medical Center Groningen, Groningen, the Netherlands
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Abstract
BACKGROUND Although chemical antiseptics are the most basic measure to control wound infection and frequently come into contact with subcutaneous adipose tissue, no studies have evaluated their toxicity on adipose tissue and its cell fractions. In the present study, the effects of five different antiseptics on adipose-derived stem cells were evaluated. METHODS Human adipose-derived stem cells were harvested from healthy donors. Adipose-derived stem cell viability was measured after treatment with different concentrations of antiseptics over 5 days. Furthermore, the effect on the proliferation, adipogenic differentiation, and apoptosis/necrosis of adipose-derived stem cells was analyzed. Finally, the mRNA expression of the stem cell markers CD29, CD34, CD73, CD90, and CD105 was detected. RESULTS Octenisept and Betaisodona significantly reduced cell proliferation and differentiation and led to considerable adipose-derived stem cell necrosis. Octenisept decreased stem cell viability at the lowest concentrations tested, and all stem cell markers were down-regulated by Octeniseptr and Betaisodona. Lavasept and Prontosan both led to reduced stem cell viability, proliferation, and differentiation, and increased apoptosis/necrosis, although the effects were less pronounced compared with Octenisept and Betaisodona. Adipose-derived stem cells survived treatment with mafenide acetate even at high concentrations, and mafenide acetate showed minimal negative effects on their proliferation, adipogenic differentiation, cell death, and stem cell marker expression. CONCLUSIONS Mafenide acetate may be regarded as a feasible antiseptic for the treatment of wounds with exposed adipose tissue because of its low adipose-derived stem cell toxicity. Lavasept and Prontosan are possible alternatives to mafenide acetate. Octenisept and Betaisodona, by contrast, may be used only in highly diluted solutions. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, V.
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A Novel Method of Human Adipose-Derived Stem Cell Isolation with Resultant Increased Cell Yield. Plast Reconstr Surg 2017; 138:983e-996e. [PMID: 27537222 DOI: 10.1097/prs.0000000000002790] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The authors have developed a novel protocol for isolating adipose-derived stem cells from human lipoaspirate. In this study, they compare their new method to a previously published standard protocol. METHODS Human adipose-derived stem cell isolation was performed using two methods to compare cell yield, cell viability, cell proliferation, and regenerative potential. The new and conventional isolation methods differ in two key areas: the collagenase digestion buffer constituents and the use of an orbital shaker. The osteogenic and adipogenic potential of adipose-derived stem cells isolated using both protocols was assessed in vitro, and gene expression analysis was performed. To assess the ability of the isolated cells to generate bone in vivo, the authors created critical-size calvarial defects in mice, which were treated with adipose-derived stem cells loaded onto hydroxyapatite-coated poly(lactic-co-glycolic acid) scaffolds. To test the ability of the isolated cells to enhance adipogenesis, the cells were added to lipoaspirate and placed beneath the scalp of immunocompromised mice. Fat graft volume retention was subsequently assessed by serial computed tomographic volumetric scanning. RESULTS The new method resulted in a 10-fold increased yield of adipose-derived stem cells compared with the conventional method. Cells harvested using the new method demonstrated significantly increased cell viability and proliferation in vitro (p < 0.05). New method cells also demonstrated significantly enhanced osteogenic and adipogenic differentiation capacity in vitro (p < 0.05) in comparison with the conventional method cells. Both cell groups demonstrated equivalent osteogenic and adipogenic regenerative potential in mice. CONCLUSIONS The authors have developed a protocol that maximizes the yield of adipose-derived stem cells derived from lipoaspirate. The new method cells have increased osteogenic and adipogenic potential in vitro and are not inferior to conventional method cells in terms of their ability to generate bone and fat in vivo. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, V.
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67
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Walecka I, Gil-Kulik P, Krzyżanowski A, Czop M, Galkowski D, Karwat J, Chomik P, Świstowska M, Kwaśniewska A, Bogucka-Kocka A, Kocki J. Phenotypic Characterization of Adherent Cells Population CD34+ CD90+ CD105+ Derived from Wharton's Jelly. Med Sci Monit 2017; 23:1886-1895. [PMID: 28422936 PMCID: PMC5405783 DOI: 10.12659/msm.902186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Mesenchymal stromal cells, MSCs, show expression of specific antigens on their surface. The aim of the study is to assess the phenotype of stem cells like isolated from the umbilical cord with respect to the presence of surface antigens CD34, CD90, and CD105 and differences in the expression of surface antigens in cells isolated from freshly sampled material in comparison with the phenotype of cells from in vitro culture. Material/Methods Stem cells collected from the umbilical cord from healthy patients and then cultured in vitro. To assess the phenotype of stem cells, cytometric analysis was carried out. To assess the phenotype of cells we used fluorescently labelled monoclonal antibodies: APC Mouse anti-human CD34, PC5 Mouse anti-human CD90 and PE Mouse anti-human CD105. Results In the case of cells from the umbilical cord and then cultured in vitro for the period of 10–14 days CD34 expression is lower (69,5%) in comparison with the group of cells not cultured. Not cultured cells were demonstrated 37% of cells co-expression of antigens CD34 and CD105, over 21% of CD34/CD90 cells and over 24% of CD105/CD90. Cultured cells group was showed higher percentage of CD90, CD105, CD34/CD105, CD34/CD90, CD105/CD90 in comparison with not cultured cells. Conclusions Our reults suggested that adherent cells population from umbilical cord, demonstrate CD34 expression In vivo. Moreover, the phenotype of MSCs, mainly in the context of CD34 expression, may vary depending on the place of collection of cells and the length of growing the cell culture.
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Affiliation(s)
- Irena Walecka
- Department of Clinical Dermatology, Central Clinical Hospital of the Ministry of the Interior and Administration in Warsaw, Warsaw, Poland
| | - Paulina Gil-Kulik
- Department of Clinical Genetics, Medical University in Lublin, Lublin, Poland
| | - Arkadiusz Krzyżanowski
- Department of Obstetrics and Pathology of Pregnancy, Medical University in Lublin, Lublin, Poland
| | - Marcin Czop
- Department of Clinical Genetics, Medical University in Lublin, Lublin, Poland
| | | | - Jolanta Karwat
- Department of Clinical Genetics, Medical University in Lublin, Lublin, Poland
| | - Piotr Chomik
- Department of Clinical Genetics, Medical University in Lublin, Lublin, Poland
| | | | - Anna Kwaśniewska
- Department of Obstetrics and Pathology of Pregnancy, Medical University in Lublin, Lublin, Poland
| | - Anna Bogucka-Kocka
- Chair and Department of Biology and Genetics, Medical University in Lublin, Lublin, Poland
| | - Janusz Kocki
- Department of Clinical Genetics, Medical University in Lublin, Lublin, Poland
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Kim BS, Tilstam PV, Springenberg-Jung K, Boecker AH, Schmitz C, Heinrichs D, Hwang SS, Stromps JP, Ganse B, Kopp R, Knobe M, Bernhagen J, Pallua N, Bucala R. Characterization of adipose tissue macrophages and adipose-derived stem cells in critical wounds. PeerJ 2017; 5:e2824. [PMID: 28070458 PMCID: PMC5217526 DOI: 10.7717/peerj.2824] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 11/22/2016] [Indexed: 01/14/2023] Open
Abstract
Background Subcutaneous adipose tissue is a rich source of adipose tissue macrophages and adipose-derived stem cells which both play a key role in wound repair. While macrophages can be divided into the classically-activated M1 and the alternatively-activated M2 phenotype, ASCs are characterized by the expression of specific stem cell markers. Methods In the present study, we have investigated the expression of common macrophage polarization and stem cell markers in acutely inflamed adipose tissue. Subcutaneous adipose tissue adjacent to acutely inflamed wounds of 20 patients and 20 healthy subjects were harvested and underwent qPCR and flow cytometry analysis. Results Expression levels of the M1-specific markers CD80, iNOS, and IL-1b were significantly elevated in inflammatory adipose tissue when compared to healthy adipose tissue, whereas the M2-specific markers CD163 and TGF-β were decreased. By flow cytometry, a significant shift of adipose tissue macrophage populations towards the M1 phenotype was confirmed. Furthermore, a decrease in the mesenchymal stem cell markers CD29, CD34, and CD105 was observed whereas CD73 and CD90 remained unchanged. Discussion This is the first report describing the predominance of M1 adipose tissue macrophages and the reduction of stem cell marker expression in acutely inflamed, non-healing wounds.
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Affiliation(s)
- Bong-Sung Kim
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany.,Department of Medicine, Yale University, New Haven, United States.,Institute of Biochemistry and Molecular Cell Biology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | | | - Katrin Springenberg-Jung
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Arne Hendrick Boecker
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Corinna Schmitz
- Institute of Biochemistry and Molecular Cell Biology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Daniel Heinrichs
- Institute of Biochemistry and Molecular Cell Biology, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Soo Seok Hwang
- Department of Immunology, Yale University, New Haven, United States
| | - Jan Philipp Stromps
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Bergita Ganse
- Department of Orthopedic Trauma Surgery, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Ruedger Kopp
- Department of Intensive Care Medicine, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Matthias Knobe
- Department of Orthopedic Trauma Surgery, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Juergen Bernhagen
- Department of Vascular Biology, Institute for Stroke and Dementia Research, Ludwig-Maximilians-Universität München (LMU), Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Norbert Pallua
- Plastic and Reconstructive Surgery, Hand Surgery-Burn Center, Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Richard Bucala
- Department of Medicine, Yale University, New Haven, United States
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Duscher D, Luan A, Rennert RC, Atashroo D, Maan ZN, Brett EA, Whittam AJ, Ho N, Lin M, Hu MS, Walmsley GG, Wenny R, Schmidt M, Schilling AF, Machens HG, Huemer GM, Wan DC, Longaker MT, Gurtner GC. Suction assisted liposuction does not impair the regenerative potential of adipose derived stem cells. J Transl Med 2016; 14:126. [PMID: 27153799 PMCID: PMC4859988 DOI: 10.1186/s12967-016-0881-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/27/2016] [Indexed: 01/22/2023] Open
Abstract
Background Adipose-derived stem cells (ASCs) have been identified as a population of multipotent cells with promising applications in tissue engineering and regenerative medicine. ASCs are abundant in fat tissue, which can be safely harvested through the minimally invasive procedure of liposuction. However, there exist a variety of different harvesting methods, with unclear impact on ASC regenerative potential. The aim of this study was thus to compare the functionality of ASCs derived from the common technique of suction-assisted lipoaspiration (SAL) versus resection. Methods Human adipose tissue was obtained from paired abdominoplasty and SAL samples from three female donors, and was processed to isolate the stromal vascular fraction. Fluorescence-activated cell sorting was used to determine ASC yield, and cell viability was assayed. Adipogenic and osteogenic differentiation capacity were assessed in vitro using phenotypic staining and quantification of gene expression. Finally, ASCs were applied in an in vivo model of tissue repair to evaluate their regenerative potential. Results SAL specimens provided significantly fewer ASCs when compared to excised fat tissue, however, with equivalent viability. SAL-derived ASCs demonstrated greater expression of the adipogenic markers FABP-4 and LPL, although this did not result in a difference in adipogenic differentiation. There were no differences detected in osteogenic differentiation capacity as measured by alkaline phosphatase, mineralization or osteogenic gene expression. Both SAL- and resection-derived ASCs enhanced significantly cutaneous healing and vascularization in vivo, with no significant difference between the two groups. Conclusion SAL provides viable ASCs with full capacity for multi-lineage differentiation and tissue regeneration, and is an effective method of obtaining ASCs for cell-based therapies.
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Affiliation(s)
- Dominik Duscher
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA. .,Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria. .,Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany.
| | - Anna Luan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Robert C Rennert
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - David Atashroo
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Zeshaan N Maan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Elizabeth A Brett
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Alexander J Whittam
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Natalie Ho
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Michelle Lin
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael S Hu
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Graham G Walmsley
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Raphael Wenny
- Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria
| | - Manfred Schmidt
- Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria
| | - Arndt F Schilling
- Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany
| | - Hans-Günther Machens
- Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany
| | - Georg M Huemer
- Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Geoffrey C Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, Department of Surgery, Stanford University School of Medicine, Stanford, CA, USA.
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Bradshaw A, Wickremsekera A, Tan ST, Peng L, Davis PF, Itinteang T. Cancer Stem Cell Hierarchy in Glioblastoma Multiforme. Front Surg 2016; 3:21. [PMID: 27148537 PMCID: PMC4831983 DOI: 10.3389/fsurg.2016.00021] [Citation(s) in RCA: 148] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 03/29/2016] [Indexed: 12/17/2022] Open
Abstract
Glioblastoma multiforme (GBM), an aggressive tumor that typically exhibits treatment failure with high mortality rates, is associated with the presence of cancer stem cells (CSCs) within the tumor. CSCs possess the ability for perpetual self-renewal and proliferation, producing downstream progenitor cells that drive tumor growth. Studies of many cancer types have identified CSCs using specific markers, but it is still unclear as to where in the stem cell hierarchy these markers fall. This is compounded further by the presence of multiple GBM and glioblastoma cancer stem cell subtypes, making investigation and establishment of a universal treatment difficult. This review examines the current knowledge on the CSC markers SALL4, OCT-4, SOX2, STAT3, NANOG, c-Myc, KLF4, CD133, CD44, nestin, and glial fibrillary acidic protein, specifically focusing on their use and validity in GBM research and how they may be utilized for investigations into GBM's cancer biology.
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Affiliation(s)
- Amy Bradshaw
- Gillies McIndoe Research Institute , Wellington , New Zealand
| | - Agadha Wickremsekera
- Gillies McIndoe Research Institute, Wellington, New Zealand; Department of Neurosurgery, Wellington Regional Hospital, Wellington, New Zealand
| | - Swee T Tan
- Gillies McIndoe Research Institute , Wellington , New Zealand
| | - Lifeng Peng
- Centre for Biodiscovery, School of Biological Sciences, Victoria University of Wellington , Wellington , New Zealand
| | - Paul F Davis
- Gillies McIndoe Research Institute , Wellington , New Zealand
| | - Tinte Itinteang
- Gillies McIndoe Research Institute , Wellington , New Zealand
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71
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Weigand A, Boos AM, Tasbihi K, Beier JP, Dalton PD, Schrauder M, Horch RE, Beckmann MW, Strissel PL, Strick R. Selective isolation and characterization of primary cells from normal breast and tumors reveal plasticity of adipose derived stem cells. Breast Cancer Res 2016; 18:32. [PMID: 26968831 PMCID: PMC4788819 DOI: 10.1186/s13058-016-0688-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 02/19/2016] [Indexed: 02/08/2023] Open
Abstract
Background There is a need to establish more cell lines from breast tumors in contrast to immortalized cell lines from metastatic effusions in order to represent the primary tumor and not principally metastatic biology of breast cancer. This investigation describes the simultaneous isolation, characterization, growth and function of primary mammary epithelial cells (MEC), mesenchymal cells (MES) and adipose derived stem cells (ADSC) from four normal breasts, one inflammatory and one triple-negative ductal breast tumors. Methods A total of 17 cell lines were established and gene expression was analyzed for MEC and MES (n = 42) and ADSC (n = 48) and MUC1, pan-KRT, CD90 and GATA-3 by immunofluorescence. DNA fingerprinting to track cell line identity was performed between original primary tissues and isolates. Functional studies included ADSC differentiation, tumor MES and MEC invasion co-cultured with ADSC-conditioned media (CM) and MES adhesion and growth on 3D-printed scaffolds. Results Comparative analysis showed higher gene expression of EPCAM, CD49f, CDH1 and KRTs for normal MEC lines; MES lines e.g. Vimentin, CD10, ACTA2 and MMP9; and ADSC lines e.g. CD105, CD90, CDH2 and CDH11. Compared to the mean of all four normal breast cell lines, both breast tumor cell lines demonstrated significantly lower ADSC marker gene expression, but higher expression of mesenchymal and invasion gene markers like SNAI1 and MMP2. When compared with four normal ADSC differentiated lineages, both tumor ADSC showed impaired osteogenic and chondrogenic but enhanced adipogenic differentiation and endothelial-like structures, possibly due to high PDGFRB and CD34. Addressing a functional role for overproduction of adipocytes, we initiated 3D-invasion studies including different cell types from the same patient. CM from ADSC differentiating into adipocytes induced tumor MEC 3D-invasion via EMT and amoeboid phenotypes. Normal MES breast cells adhered and proliferated on 3D-printed scaffolds containing 20 fibers, but not on 2.5D-printed scaffolds with single fiber layers, important for tissue engineering. Conclusion Expression analyses confirmed successful simultaneous cell isolations of three different phenotypes from normal and tumor primary breast tissues. Our cell culture studies support that breast-tumor environment differentially regulates tumor ADSC plasticity as well as cell invasion and demonstrates applications for regenerative medicine. Electronic supplementary material The online version of this article (doi:10.1186/s13058-016-0688-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Annika Weigand
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstr. 12, Erlangen, D-91054, Germany.
| | - Anja M Boos
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstr. 12, Erlangen, D-91054, Germany
| | - Kereshmeh Tasbihi
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstr. 12, Erlangen, D-91054, Germany
| | - Justus P Beier
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstr. 12, Erlangen, D-91054, Germany
| | - Paul D Dalton
- Department of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, Würzburg, Germany
| | - Michael Schrauder
- Department of Obstetrics and Gynecology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Raymund E Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Krankenhausstr. 12, Erlangen, D-91054, Germany
| | - Matthias W Beckmann
- Department of Obstetrics and Gynecology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Pamela L Strissel
- Department of Obstetrics and Gynecology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Reiner Strick
- Department of Obstetrics and Gynecology, University Hospital of Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg (FAU), Erlangen, Germany
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Selective Criteria and Markers in Adipose-Derived Stromal Cells Collection Quality and Expansion Potency. Ann Plast Surg 2016; 76 Suppl 1:S101-7. [DOI: 10.1097/sap.0000000000000704] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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73
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Transplantation of Immortalized CD34+ and CD34- Adipose-Derived Stem Cells Improve Cardiac Function and Mitigate Systemic Pro-Inflammatory Responses. PLoS One 2016; 11:e0147853. [PMID: 26840069 PMCID: PMC4740491 DOI: 10.1371/journal.pone.0147853] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 01/08/2016] [Indexed: 01/18/2023] Open
Abstract
Adipose-derived stem cells (ADSCs) have the potential to differentiate into various cell lineages and they are easily obtainable from patients, which makes them a promising candidate for cell therapy. However, a drawback is their limited life span during in vitro culture. Therefore, hTERT-immortalized CD34+ and CD34- mouse ADSC lines (mADSCshTERT) tagged with GFP were established. We evaluated the proliferation capacity, multi-differentiation potential, and secretory profiles of CD34+ and CD34- mADSCshTERTin vitro, as well as their effects on cardiac function and systemic inflammation following transplantation into a rat model of acute myocardial infarction (AMI) to assess whether these cells could be used as a novel cell source for regeneration therapy in the cardiovascular field. CD34+ and CD34- mADSCshTERT demonstrated phenotypic characteristics and multi-differentiation potentials similar to those of primary mADSCs. CD34+ mADSCshTERT exhibited a higher proliferation ability compared to CD34- mADSCshTERT, whereas CD34- mADSCshTERT showed a higher osteogenic differentiation potential compared to CD34+ mADSCshTERT. Primary mADSCs, CD34+, and CD34- mADSCshTERT primarily secreted EGF, TGF-β1, IGF-1, IGF-2, MCP-1, and HGFR. CD34+ mADSCshTERT had higher secretion of VEGF and SDF-1 compared to CD34- mADSCshTERT. IL-6 secretion was severely reduced in both CD34+ and CD34- mADSCshTERT compared to primary mADSCs. Transplantation of CD34+ and CD34- mADSCshTERT significantly improved the left ventricular ejection fraction and reduced infarct size compared to AMI-induced rats after 28 days. At 28 days after transplantation, engraftment of CD34+ and CD34- mADSCshTERT was confirmed by positive Y chromosome staining, and differentiation of CD34+ and CD34- mADSCshTERT into endothelial cells was found in the infarcted myocardium. Significant decreases were observed in circulating IL-6 levels in CD34+ and CD34- mADSCshTERT groups compared to the AMI-induced control group. Transplantation of CD34- mADSCshTERT significantly reduced circulating MCP-1 levels compared to the AMI control and CD34+ mADSCshTERT groups. GFP-tagged CD34+ and CD34- mADSCshTERT are valuable resources for cell differentiation studies in vitro as well as for regeneration therapy in vivo.
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74
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Fotia C, Massa A, Boriani F, Baldini N, Granchi D. Prolonged exposure to hypoxic milieu improves the osteogenic potential of adipose derived stem cells. J Cell Biochem 2016; 116:1442-53. [PMID: 25648991 DOI: 10.1002/jcb.25106] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 01/27/2015] [Indexed: 12/20/2022]
Abstract
Mesenchymal stem cells (MSC) have been widely used in orthopedics for several applications. Conventionally, MSC are maintained under 21% O2 which does not reflect the real O2 tension in vivo. Recently, it was reported that different O2 conditions can give different cellular responses. Here, we investigated whether prolonged exposure to hypoxia affects the osteogenic differentiation of adipose-derived stem cells (ASC). ASC from six individuals were cultured under "low" (2-3%) or "air" (21%) oxygen tensions, either without or with osteogenic stimuli. The effect of the O2 tension was evaluated on cell proliferation, surface antigens, stemness and bone-related genes expression, alkaline phosphatase activity (ALP), mineralization activity, and release of osteogenic growth factors. Without differentiating stimuli, hypoxia favored ASC proliferation, reduced the number of CD184+ and CD34+ cells, and preserved the expression of NANOG and SOX2. The combination of hypoxia and osteogenic medium induced a high proliferation rate, a rapid and more pronounced mineralization activity, a higher expression of genes related to the MSC differentiation, a higher release of mitogenic growth factors (bFGF, PDGF-BB), and the decrease in TGF-β secretion, an inhibitor of the early stage of the osteoblast differentiation. We demonstrated that hypoxia acts dually, favoring ASC proliferation and the maintenance of the stemness in the absence of osteogenic stimuli, but inducing the differentiation in a bone-like microenvironment. In conclusion, prolonged cell culture in hypoxic microenvironment represents a proper method to modulate the stem cell function that may be used in several applications, for example, studies on bone pathophysiology or bone-tissue engineering.
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Affiliation(s)
- Caterina Fotia
- Laboratory for Orthopedic Pathophysiology and Regenerative Medicine, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Annamaria Massa
- Laboratory for Orthopedic Pathophysiology and Regenerative Medicine, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Filippo Boriani
- Laboratory for Orthopedic Pathophysiology and Regenerative Medicine, Rizzoli Orthopedic Institute, Bologna, Italy
| | - Nicola Baldini
- Laboratory for Orthopedic Pathophysiology and Regenerative Medicine, Rizzoli Orthopedic Institute, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Donatella Granchi
- Laboratory for Orthopedic Pathophysiology and Regenerative Medicine, Rizzoli Orthopedic Institute, Bologna, Italy
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75
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Behaviour of telocytes during physiopathological activation. Semin Cell Dev Biol 2016; 55:50-61. [PMID: 26826526 DOI: 10.1016/j.semcdb.2016.01.035] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 01/24/2016] [Indexed: 12/30/2022]
Abstract
We consider CD34+ stromal cells/telocytes (CD34+ SC/TCs) in normal and pathological conditions. These cells are involved in organisation and control of the extracellular matrix, structural support, creation of microenvironments, intercellular communication, neurotransmission, immunomodulation and immunosurveillance, inhibition of apoptosis, and control, regulation and source of other cell types. CD34+ SC/TCs are widely reported in the origin of interstitial cells of Cajal and in regeneration in the heart, skeletal muscle, skin, respiratory tree, liver, urinary system and the eye. In addition, we contribute CD34+ SC/TC hyperplasia associated with several processes, including neurogenous hyperplasia (neuroma of the appendix), hyperplasia of Leydig cells in undescended testes (Cryptorchidism), peripheral areas of inflammatory/repair processes (pericicatricial tissue and transitional zones between diseased segments in Crohn's disease and normal bowel), benign tumours (neurofibromas, Antoni-B zones of neurilemmomas, granular cell tumours, and melanocytic nevi) and in some lesions with myxoid, oedematous and degenerative changes (Reinke's oedema, myxomatous mitral valve degeneration, thyroid-associated ophthalmopathy and basophilic degenerative changes of the collagen in the dermis). We pay particular attention to the role of CD34+ SC/TCs during repair through granulation tissue, including morphologic changes, loss of CD34 expression and gain of αSMA expression with myofibroblast transformation, and interactions with pericytes, endothelial and inflammatory cells. Finally, we consider CD34 or αSMA expression in stromal cells of malignant epithelial tumours, and the role of CD34+ SC/TCs in the origin of carcinoma-associated fibroblasts (CAFs) and myofibroblasts. In conclusion, CD34+ SC/TCs play an important role in the maintenance and modulation of tissue homeostasis and in morphogenesis/renewal/repair.
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76
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Díaz-Flores L, Gutiérrez R, González-Gómez M, Díaz-Flores L, Valladares F, Rancel N, Sáez FJ, Madrid JF. Telocyte Behaviour During Inflammation, Repair and Tumour Stroma Formation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 913:177-191. [PMID: 27796888 DOI: 10.1007/978-981-10-1061-3_12] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this chapter, we outline the role of human CD34+ stromal cells/telocytes (CD34+ SC/TCs) as progenitor cells during repair. The in vivo activation phenomena of CD34+ SC/TCs in this process include increased size; separation from the neighbouring structures (mainly of the vascular walls); association with inflammatory cells, predominantly macrophages; development of the organelles of synthesis (rough endoplasmic reticulum and Golgi apparatus); cell proliferation with presence of mitosis and high proliferative index (transit-amplifying cells); and fibroblastic and myofibroblastic differentiation. A procedure to study these tissue-resident cells, comparison of their behaviour in vivo and in vitro and different behaviour depending on location, time, type of injury (including tumour stroma) and greater or lesser proximity to the injury are also considered.
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Affiliation(s)
- L Díaz-Flores
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain.
| | - R Gutiérrez
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
| | - M González-Gómez
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
| | - L Díaz-Flores
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
| | - F Valladares
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
| | - N Rancel
- Department of Anatomy, Pathology, Histology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
| | - F J Sáez
- Department of Cell Biology and Histology, UFI11/44, School of Medicine and Dentistry, University of the Basque Country, UPV/EHU, Leioa, Spain
| | - J F Madrid
- Department of Cell Biology and Histology, School of Medicine, Regional Campus of International Excellence, "Campus Mare Nostrum" University of Murcia, Murcia, Spain
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77
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Zwezdaryk KJ, Ferris MB, Strong AL, Morris CA, Bunnell BA, Dhurandhar NV, Gimble JM, Sullivan DE. Human cytomegalovirus infection of human adipose-derived stromal/stem cells restricts differentiation along the adipogenic lineage. Adipocyte 2016; 5:53-64. [PMID: 27144097 DOI: 10.1080/21623945.2015.1119957] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 11/03/2015] [Accepted: 11/05/2015] [Indexed: 12/27/2022] Open
Abstract
Human adipose-derived stromal/stem cells (ASCs) display potential to be used in regenerative stem cell therapies and as treatments for inflammatory and autoimmune disorders. Despite promising use of ASCs as therapeutics, little is known about their susceptibility to infectious agents. In this study, we demonstrate that ASCs are highly susceptible to human cytomegalovirus (HCMV) infection and permissive for replication leading to release of infectious virions. Additionally, many basic ASC functions are inhibited during HCMV infection, such as differentiation and immunomodulatory potential. To our knowledge this is the first study examining potential adverse effects of HCMV infection on ASC biology. Our results suggest, that an active HCMV infection during ASC therapy may result in a poor clinical outcome due to interference by the virus.
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78
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Duscher D, Atashroo D, Maan ZN, Luan A, Brett EA, Barrera J, Khong SM, Zielins ER, Whittam AJ, Hu MS, Walmsley GG, Pollhammer MS, Schmidt M, Schilling AF, Machens HG, Huemer GM, Wan DC, Longaker MT, Gurtner GC. Ultrasound-Assisted Liposuction Does Not Compromise the Regenerative Potential of Adipose-Derived Stem Cells. Stem Cells Transl Med 2015; 5:248-57. [PMID: 26702129 PMCID: PMC4729547 DOI: 10.5966/sctm.2015-0064] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 10/28/2015] [Indexed: 01/19/2023] Open
Abstract
The regenerative abilities of adipose-derived mesenchymal stem cells (ASCs) harvested via a third-generation ultrasound-assisted liposuction (UAL) device versus ASCs obtained via standard suction-assisted lipoaspiration were evaluated. ASC yield and viability, and expression of most osteogenic, adipogenic, and key regenerative genes were equivalent between the two methods. Cells harvested via UAL showed comparable abilities to enhance cutaneous regeneration and appear suitable for cell therapy and tissue engineering applications. Human mesenchymal stem cells (MSCs) have recently become a focus of regenerative medicine, both for their multilineage differentiation capacity and their excretion of proregenerative cytokines. Adipose-derived mesenchymal stem cells (ASCs) are of particular interest because of their abundance in fat tissue and the ease of harvest via liposuction. However, little is known about the impact of different liposuction methods on the functionality of ASCs. Here we evaluate the regenerative abilities of ASCs harvested via a third-generation ultrasound-assisted liposuction (UAL) device versus ASCs obtained via standard suction-assisted lipoaspiration (SAL). Lipoaspirates were sorted using fluorescent assisted cell sorting based on an established surface-marker profile (CD34+/CD31−/CD45−), to obtain viable ASCs. Yield and viability were compared and the differentiation capacities of the ASCs were assessed. Finally, the regenerative potential of ASCs was examined using an in vivo model of tissue regeneration. UAL- and SAL-derived samples demonstrated equivalent ASC yield and viability, and UAL ASCs were not impaired in their osteogenic, adipogenic, or chondrogenic differentiation capacity. Equally, quantitative real-time polymerase chain reaction showed comparable expression of most osteogenic, adipogenic, and key regenerative genes between both ASC groups. Cutaneous regeneration and neovascularization were significantly enhanced in mice treated with ASCs obtained by either UAL or SAL compared with controls, but there were no significant differences in healing between cell-therapy groups. We conclude that UAL is a successful method of obtaining fully functional ASCs for regenerative medicine purposes. Cells harvested with this alternative approach to liposuction are suitable for cell therapy and tissue engineering applications. Significance Adipose-derived mesenchymal stem cells (ASCs) are an appealing source of therapeutic progenitor cells because of their multipotency, diverse cytokine profile, and ease of harvest via liposuction. Alternative approaches to classical suction-assisted liposuction are gaining popularity; however, little evidence exists regarding the impact of different liposuction methods on the regenerative functionality of ASCs. Human ASC characteristics and regenerative capacity were assessed when harvested via ultrasound-assisted (UAL) versus standard suction-assisted liposuction. ASCs obtained via UAL were of equal quality when directly compared with the current gold standard harvest method. UAL is an adjunctive source of fully functional mesenchymal stem cells for applications in basic research and clinical therapy.
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Affiliation(s)
- Dominik Duscher
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany
| | - David Atashroo
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Zeshaan N Maan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Anna Luan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Elizabeth A Brett
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Janos Barrera
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Sacha M Khong
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Elizabeth R Zielins
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Alexander J Whittam
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Michael S Hu
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Graham G Walmsley
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Michael S Pollhammer
- Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria
| | - Manfred Schmidt
- Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria
| | - Arndt F Schilling
- Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany
| | - Hans-Günther Machens
- Department of Plastic Surgery and Hand Surgery, Technical University Munich, Munich, Germany
| | - Georg M Huemer
- Section of Plastic, Aesthetic and Reconstructive Surgery, Johannes Kepler University, Linz, Austria
| | - Derrick C Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
| | - Michael T Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA Institute for Stem Cell Biology and Regenerative Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Geoffrey C Gurtner
- Hagey Laboratory for Pediatric Regenerative Medicine, Division of Plastic Surgery, School of Medicine, Stanford University, Stanford, California, USA
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79
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Huang S, Zhao W, Wang Z, Tao K, Liu X, Chang P. Potential drawbacks in cell-assisted lipotransfer: A systematic review of existing reports (Review). Mol Med Rep 2015; 13:1063-9. [PMID: 26677061 PMCID: PMC4732852 DOI: 10.3892/mmr.2015.4682] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 11/17/2015] [Indexed: 12/12/2022] Open
Abstract
Cell-assisted lipotransfer (CAL) has been widely used in various clinical applications, including breast augmentation following mammectomy, soft-tissue reconstruction and wound healing. However, the clinical application of CAL has been restricted due to the transplanted fat tissues being readily liquefied and absorbed. The present review examines 57 previously published studies involving CAL, including fat grafting or fat transfer with human adipose-stem cells in all known databases. Of these 57 articles, seven reported the clinical application of CAL. In the 57 studies, the majority of the fat tissues were obtained from the abdomen via liposuction of the seven clinical studies, four were performed in patients requiring breast augmentation, one in a patient requiring facial augmentation, one in a patient requiring soft tissue augmentation/reconstruction and one in a patient requiring fat in their upper arms. Despite the potential risks, there has been an increased demand for CAL in in cosmetic or aesthetic applications. Thus, criteria and guidelines are necessary for the clinical application of CAL technology.
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Affiliation(s)
- Sheng Huang
- Department of Plastic and Reconstructive Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110840, P.R. China
| | - Weiliang Zhao
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, P.R. China
| | - Zihua Wang
- Department of Plastic and Reconstructive Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110840, P.R. China
| | - Kai Tao
- Department of Plastic and Reconstructive Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110840, P.R. China
| | - Xiaoyan Liu
- Department of Plastic and Reconstructive Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110840, P.R. China
| | - Peng Chang
- Department of Plastic and Reconstructive Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning 110840, P.R. China
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80
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Oliva-Olivera W, Leiva Gea A, Lhamyani S, Coín-Aragüez L, Alcaide Torres J, Bernal-López MR, García-Luna PP, Morales Conde S, Fernández-Veledo S, El Bekay R, Tinahones FJ. Differences in the Osteogenic Differentiation Capacity of Omental Adipose-Derived Stem Cells in Obese Patients With and Without Metabolic Syndrome. Endocrinology 2015; 156:4492-501. [PMID: 26372179 PMCID: PMC4655209 DOI: 10.1210/en.2015-1413] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Multiple studies have suggested that the reduced differentiation capacity of multipotent adipose tissue-derived mesenchymal stem cells (ASCs) in obese subjects could compromise their use in cell therapy. Our aim was to assess the osteogenic potential of omental ASCs and to examine the status of the isolated CD34(negative)-enriched fraction of omental-derived ASCs from subjects with different metabolic profiles. Omental ASCs from normal-weight subjects and subjects with or without metabolic syndrome were isolated, and the osteogenic potential of omental ASCs was evaluated. Additionally, osteogenic and clonogenic potential, proliferation rate, mRNA expression levels of proteins involved in redox balance, and fibrotic proteins were examined in the CD34(negative)-enriched fraction of omental-derived ASCs. Both the omental ASCs and the CD34(negative)-enriched fraction of omental ASCs from subjects without metabolic syndrome have a greater osteogenic potential than those from subjects with metabolic syndrome. The alkaline phosphatase and osteonectin mRNA were negatively correlated with nicotinamide adenine dinucleotide phosphate oxidase-2 mRNA and the mRNA expression levels of the fibrotic proteins correlated positively with nicotinamide adenine dinucleotide phosphate oxidase-5 mRNA and the homeostasis model assessment. Although the population doubling time was significantly higher in subjects with a body mass index of 25 kg/m(2) or greater, only the CD34(negative)-enriched omental ASC fraction in the subjects with metabolic syndrome had a higher population doubling time than the normal-weight subjects. The osteogenic, clonogenic, fibrotic potential, and proliferation rate observed in vitro suggest that omental ASCs from subjects without metabolic syndrome are more suitable for therapeutic osteogenic applications than those from subjects with metabolic syndrome.
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Affiliation(s)
- Wilfredo Oliva-Olivera
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Antonio Leiva Gea
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Said Lhamyani
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Leticia Coín-Aragüez
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Juan Alcaide Torres
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Maria Rosa Bernal-López
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Pedro Pablo García-Luna
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Salvador Morales Conde
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Sonia Fernández-Veledo
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Rajaa El Bekay
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
| | - Francisco José Tinahones
- Department of Clinical Endocrinology and Nutrition (W.O.-O., S.L., L.C.-A., J.A.T., R.E.B., F.J.T.), Institute of Biomedical Research of Malaga, Hospital Complex of Malaga (Virgen de la Victoria), University of Malaga, and Department of Orthopedic Surgery and Traumatology (A.L.G.), Virgen de la Victoria University Hospital and University of Malaga, and Department of Internal Medicine (M.R.B.-L.), Regional University Hospital of Malaga, Institute of Biomedical Research of Malaga, 29010 Malaga, Spain; Centro de Investigación Biomédica en Red of Obesity Physiopathology and Nutrition (W.O.-O., S.L., L..C.-A., J.A.T., M.R.B.-L., R.E.B., F.J.T.), and Centro de Investigación Biomédica en Red of Diabetes and Associated Metabolic Disorders (S.F.-V.), Institute of Health Salud Carlos III, 28029 Madrid, Spain; Department of Endocrinology and Nutrition (P.P.G.L.) and Unit of Innovation in Minimally Invasive Surgery (S.M.C.), Department of Surgery, Virgen del Rocío University Hospital, 41013 Seville, Spain; and University Hospital of Tarragona Joan XXIII Institut d'Investigació (S.F.-V.), Sanitaria Pere Virgili, Universitat Rovirai Virgili, 43003 Tarragona, Spain
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81
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Abdallah BM, Al-Shammary A, Skagen P, Abu Dawud R, Adjaye J, Aldahmash A, Kassem M. CD34 defines an osteoprogenitor cell population in mouse bone marrow stromal cells. Stem Cell Res 2015; 15:449-458. [DOI: 10.1016/j.scr.2015.09.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 09/08/2015] [Accepted: 09/15/2015] [Indexed: 01/08/2023] Open
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Abstract
We have witnessed a rapid expansion of in vitro characterization and differentiation of adipose-derived stem cells, with increasing translation to both in vivo models and a breadth of clinical specialties. However, an appreciation of the truly heterogeneous nature of this unique stem cell group has identified a need to more accurately delineate subpopulations by any of a host of methods, to include functional properties or surface marker expression. Cells selected for improved proliferative, differentiative, angiogenic or ischemia-resistant properties are but a few attributes that could prove beneficial for targeted treatments or therapies. Optimizing cell culture conditions to permit re-introduction to patients is critical for clinical translation.
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Affiliation(s)
- Kavan S Johal
- Blond McIndoe Laboratories, Institute of Inflammation & Repair, School of Medicine, University of Manchester, M13 9PT, UK
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83
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Roman A, Páll E, Mihu CM, Petruţiu AS, Barbu-Tudoran L, Câmpian RS, Florea A, Georgiu C. Tracing CD34+ Stromal Fibroblasts in Palatal Mucosa and Periodontal Granulation Tissue as a Possible Cell Reservoir for Periodontal Regeneration. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2015; 21:837-848. [PMID: 26040442 DOI: 10.1017/s1431927615000598] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The aim of the present research was to trace CD34+ stromal fibroblastic cells (CD34+ SFCs) in the palatal connective tissue harvested for muco-gingival surgical procedures and in granulation tissues from periodontal pockets using immunohistochemical and transmission electron microscopy. Immunohistochemical analysis targeted the presence of three antigens: CD31, α-smooth muscle actin (α-SMA), and CD34. In the palate, CD31 staining revealed a colored inner ring of the vessels representing the endothelium, α-SMA+ was located in the medial layer of the vasculature, and CD34 was intensely expressed by endothelial cells and artery adventitial cells (considered to be CD34+ SFCs). Granulation tissue showed the same pattern for CD31+ and α-SMA, but a different staining pattern for CD34. Ultrastructural examination of the palatal tissue highlighted perivascular cells with fibroblast-like characteristics and pericytes in close spatial relationship to endothelial cells. The ultrastructural evaluation of granulation tissue sections confirmed the presence of neovasculature and the inflammatory nature of this tissue. The present study traced the presence of CD34+ SFCs and of pericytes in the palatal connective tissue thus highlighting once more its intrinsic regenerative capabilities. The clinical and systemic factors triggering mobilization and influencing the fate of local CD34+SCFs and other progenitors are issues to be further investigated.
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Affiliation(s)
- Alexandra Roman
- 1Department of Periodontology, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Emőke Páll
- 1Department of Periodontology, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Carmen M Mihu
- 3Department of Histology, Faculty of Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,6 L. Pasteur Street,400349 Cluj-Napoca,Romania
| | - Adrian S Petruţiu
- 1Department of Periodontology, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Lucian Barbu-Tudoran
- 4Department of Molecular Biology and Biotechnologies, Faculty of Biology and Geology,Babeş-Bolyai University,5-7 Clinicilor Street,400006 Cluj-Napoca,Romania
| | - Radu S Câmpian
- 5Department of Oral Rehabilitation, Faculty of Dental Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,15 V. Babeş Street,400012 Cluj-Napoca,Romania
| | - Adrian Florea
- 6Department of Cell and Molecular Biology, Faculty of Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,6 L. Pasteur Street,400349 Cluj-Napoca,Romania
| | - Carmen Georgiu
- 7Department of Pathology, Faculty of Medicine,Iuliu Haţieganu University of Medicine and Pharmacy,8 V. Babeş Street,400012 Cluj-Napoca,Romania
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84
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Busser H, Najar M, Raicevic G, Pieters K, Velez Pombo R, Philippart P, Meuleman N, Bron D, Lagneaux L. Isolation and Characterization of Human Mesenchymal Stromal Cell Subpopulations: Comparison of Bone Marrow and Adipose Tissue. Stem Cells Dev 2015; 24:2142-57. [PMID: 26086188 DOI: 10.1089/scd.2015.0172] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Preparations of mesenchymal stromal cells (MSCs) are generally obtained from unfractionated tissue cells, resulting in heterogeneous cell mixtures. Several markers were proposed to enrich these cells, but the majority of these markers are defined for bone marrow (BM). Moreover, the surface markers of freshly isolated MSCs also differ from those of cultured MSCs in addition to a phenotypic variation depending on the MSC source. For tissue engineering applications, it is crucial to start with a well-defined cell population. In this study, we performed immunomagnetic selections with five single surface markers to isolate MSC subpopulations from BM and adipose tissue (AT): CD271, SUSD2, MSCA-1, CD44, and CD34. We determined the phenotype, the clonogenicity, the proliferation, the differentiation capacity, and the immunoregulatory profile of the subpopulations obtained in comparison with unselected cells. We showed that native BM-MSCs can be enriched from the positive fractions of MSCA-1, SUSD2, and CD271 selections. In contrast, we observed that SUSD2 and MSCA-1 were unable to identify MSCs from AT, meaning they are not expressed in situ. Only the CD34(+) selection successfully isolated MSCs from AT. Interestingly, we observed that CD271 selection can define AT cell subsets with particular abilities, but only in lipoaspiration samples and not in abdominoplasty samples. Importantly, we found a population of clear CD34(+) fresh BM-MSCs displaying different properties. A single marker-based selection for MSC enrichment should be more advantageous for cell therapy and would enable the standardization of efficient and safe therapeutic intervention through the use of a well-identified and homogeneous cell population.
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Affiliation(s)
- Hélène Busser
- 1 Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles , Brussels, Belgium
| | - Mehdi Najar
- 1 Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles , Brussels, Belgium
| | - Gordana Raicevic
- 1 Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles , Brussels, Belgium
| | - Karlien Pieters
- 1 Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles , Brussels, Belgium
| | - Rafael Velez Pombo
- 2 Plastic, Aesthetic and Reconstructive Surgery, Iris South Hospitals (HIS) , Joseph Bracops Site, Brussels, Belgium
| | - Pierre Philippart
- 3 Department of Stomatology and Maxillo-Facial Surgery, Iris South Hospitals (HIS) , Joseph Bracops Site, Brussels, Belgium
| | | | - Dominique Bron
- 4 Hematology, Jules Bordet Institute , Brussels, Belgium
| | - Laurence Lagneaux
- 1 Laboratory of Clinical Cell Therapy, Jules Bordet Institute, Université Libre de Bruxelles , Brussels, Belgium
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85
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De Francesco F, Ricci G, D'Andrea F, Nicoletti GF, Ferraro GA. Human Adipose Stem Cells: From Bench to Bedside. TISSUE ENGINEERING PART B-REVIEWS 2015; 21:572-84. [PMID: 25953464 DOI: 10.1089/ten.teb.2014.0608] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Stem cell-based therapies for repair and regeneration of different tissues are becoming more important in the treatment of several diseases. Adult stem cells currently symbolize the most available source of cell progenitors for tissue engineering and repair and can be harvested using minimally invasive procedures. Moreover, mesenchymal stem cells (MSCs), the most widely used stem cells in stem cell-based therapies, are multipotent progenitors, with capability to differentiate into cartilage, bone, connective, muscle, and adipose tissue. So far, bone marrow has been regarded as the main source of MSCs. To date, human adult adipose tissue may be the best suitable alternative source of MSCs. Adipose stem cells (ASCs) can be largely extracted from subcutaneous human adult adipose tissue. A large number of studies show that adipose tissue contains a biologically and clinically interesting heterogeneous cell population called stromal vascular fraction (SVF). The SVF may be employed directly or cultured for selection and expansion of an adherent population, so called adipose-derived stem cells (ASCs). In recent years, literature based on data related to SVF cells and ASCs has augmented considerably: These studies have demonstrated the efficacy and safety of SVF cells and ASCs in vivo in animal models. On the basis of these observations, in several countries, various clinical trials involving SVF cells and ASCs have been permitted. This review aims at summarizing data regarding either ASCs cellular biology or ASCs-based clinical trials and at discussing the possible future clinical translation of ASCs and their potentiality in cell-based tissue engineering.
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Affiliation(s)
- Francesco De Francesco
- 1 Multidisciplinary Department of Medical-Surgical and Dental Specialties, Second University of Naples , Naples, Italy
| | - Giulia Ricci
- 2 Department of Experimental Medicine, Second University of Naples , Naples, Italy
| | - Francesco D'Andrea
- 1 Multidisciplinary Department of Medical-Surgical and Dental Specialties, Second University of Naples , Naples, Italy
| | - Giovanni Francesco Nicoletti
- 1 Multidisciplinary Department of Medical-Surgical and Dental Specialties, Second University of Naples , Naples, Italy
| | - Giuseppe Andrea Ferraro
- 1 Multidisciplinary Department of Medical-Surgical and Dental Specialties, Second University of Naples , Naples, Italy
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86
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Abstract
The vasculature plays an indispensible role in organ development and maintenance of tissue homeostasis, such that disturbances to it impact greatly on developmental and postnatal health. Although cell turnover in healthy blood vessels is low, it increases considerably under pathological conditions. The principle sources for this phenomenon have long been considered to be the recruitment of cells from the peripheral circulation and the re-entry of mature cells in the vessel wall back into cell cycle. However, recent discoveries have also uncovered the presence of a range of multipotent and lineage-restricted progenitor cells in the mural layers of postnatal blood vessels, possessing high proliferative capacity and potential to generate endothelial, smooth muscle, hematopoietic or mesenchymal cell progeny. In particular, the tunica adventitia has emerged as a progenitor-rich compartment with niche-like characteristics that support and regulate vascular wall progenitor cells. Preliminary data indicate the involvement of some of these vascular wall progenitor cells in vascular disease states, adding weight to the notion that the adventitia is integral to vascular wall pathogenesis, and raising potential implications for clinical therapies. This review discusses the current body of evidence for the existence of vascular wall progenitor cell subpopulations from development to adulthood and addresses the gains made and significant challenges that lie ahead in trying to accurately delineate their identities, origins, regulatory pathways, and relevance to normal vascular structure and function, as well as disease.
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Affiliation(s)
- Peter J Psaltis
- From the Department of Medicine, University of Adelaide and Heart Health Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia (P.J.P.); Monash Cardiovascular Research Centre, Monash University, Clayton, Victoria, Australia (P.J.P.); and Department of Internal Medicine, University of Kansas School of Medicine (R.D.S.)
| | - Robert D Simari
- From the Department of Medicine, University of Adelaide and Heart Health Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia (P.J.P.); Monash Cardiovascular Research Centre, Monash University, Clayton, Victoria, Australia (P.J.P.); and Department of Internal Medicine, University of Kansas School of Medicine (R.D.S.).
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87
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Apdik H, Doğan A, Demirci S, Aydın S, Şahin F. Dose-dependent Effect of Boric Acid on Myogenic Differentiation of Human Adipose-derived Stem Cells (hADSCs). Biol Trace Elem Res 2015; 165:123-30. [PMID: 25637568 DOI: 10.1007/s12011-015-0253-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/22/2015] [Indexed: 01/19/2023]
Abstract
Boron, a vital micronutrient for plant metabolism, is not fully elucidated for embryonic and adult body development, and tissue regeneration. Although optimized amount of boron supplement has been shown to be essential for normal gestational development in zebrafish and frog and beneficial for bone regeneration in higher animals, effects of boron on myogenesis and myo-regeneration remains to be solved. In the current study, we investigated dose-dependent activity of boric acid on myogenic differentiation of human adipose-derived stem cells (hADSCs) using immunocytochemical, gene, and protein expression analysis. The results revealed that while low- (81.9 μM) and high-dose (819.6 μM) boron treatment increased myogenic gene expression levels such as myosin heavy chain (MYH), MyoD, myogenin, and desmin at day 4 of differentiation, high-dose treatment decreased myogenic-related gene and protein levels at day 21 of differentiation, confirmed by immunocytochemical analysis. The findings of the study present not only an understanding of boron's effect on myogenic differentiation but also an opportunity for the development of scaffolds to be used in skeletal tissue engineering and supplements for embryonic muscle growth. However, fine dose tuning and treatment period arranging are highly warranted as boron treatment over required concentrations and time might result in detrimental outcomes to myogenesis and myo-regeneration.
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Affiliation(s)
- Hüseyin Apdik
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, 34755, Kayışdağı, Istanbul, Turkey
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88
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Iyyanki T, Hubenak J, Liu J, Chang EI, Beahm EK, Zhang Q. Harvesting technique affects adipose-derived stem cell yield. Aesthet Surg J 2015; 35:467-76. [PMID: 25791999 DOI: 10.1093/asj/sju055] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2014] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND The success of an autologous fat graft depends in part on its total stromal vascular fraction (SVF) and adipose-derived stem cells (ASCs). However, variations in the yields of ASCs and SVF cells as a result of different harvesting techniques and donor sites are poorly understood. OBJECTIVE To investigate the effects of adipose tissue harvesting technique and donor site on the yield of ASCs and SVF cells. METHODS Subcutaneous fat tissues from the abdomen, flank, or axilla were harvested from patients of various ages by mechanical liposuction, direct surgical excision, or Coleman's technique with or without centrifugation. Cells were isolated and then analyzed with flow cytometry to determine the yields of total SVF cells and ASCs (CD11b-, CD45-, CD34+, CD90+, D7-FIB+). Differences in ASC and total SVF yields were assessed with one-way analysis of variance. Differentiation experiments were performed to confirm the multilineage potential of cultured SVF cells. RESULTS Compared with Coleman's technique without centrifugation, direct excision yielded significantly more ASCs (P < .001) and total SVF cells (P = .007); liposuction yielded significantly fewer ASCs (P < .001) and total SVF cells (P < .05); and Coleman's technique with centrifugation yielded significantly more total SVF cells (P < .005), but not ASCs. The total number of SVF cells in fat harvested from the abdomen was significantly larger than the number in fat harvested from the flank or axilla (P < .05). Cultured SVF cells differentiated to adipocytes, osteocytes, and chondrocytes. CONCLUSIONS Adipose tissue harvested from the abdomen through direct excision or Coleman's technique with centrifugation was found to yield the most SVF cells and ASCs.
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Affiliation(s)
- Tejaswi Iyyanki
- From the Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Justin Hubenak
- From the Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jun Liu
- From the Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Edward I Chang
- From the Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Elisabeth K Beahm
- From the Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Qixu Zhang
- From the Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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89
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Layer-by-layer assembled cell instructive nanocoatings containing platelet lysate. Biomaterials 2015; 48:56-65. [DOI: 10.1016/j.biomaterials.2015.01.020] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/23/2014] [Accepted: 01/20/2015] [Indexed: 12/31/2022]
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90
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Human dental pulp stem cells (hDPSCs): isolation, enrichment and comparative differentiation of two sub-populations. BMC DEVELOPMENTAL BIOLOGY 2015; 15:14. [PMID: 25879198 PMCID: PMC4377026 DOI: 10.1186/s12861-015-0065-x] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 02/27/2015] [Indexed: 02/07/2023]
Abstract
Background Human dental pulp represents a suitable alternative source of stem cells for the purpose of cell-based therapies in regenerative medicine, because it is relatively easy to obtain it, using low invasive procedures. This study characterized and compared two subpopulations of adult stem cells derived from human dental pulp (hDPSCs). Human DPSCs, formerly immune-selected for STRO-1 and c-Kit, were separated for negativity and positivity to CD34 expression respectively, and evaluated for cell proliferation, stemness maintenance, cell senescence and multipotency. Results The STRO-1+/c-Kit+/CD34+ hDPSCs showed a slower proliferation, gradual loss of stemness, early cell senescence and apoptosis, compared to STRO-1+/c-Kit+/CD34− hDPSCs. Both the subpopulations demonstrated similar abilities to differentiate towards mesoderm lineages, whereas a significant difference was observed after the neurogenic induction, with a greater commitment of STRO-1+/c-Kit+/CD34+ hDPSCs. Moreover, undifferentiated STRO-1+/c-Kit+/CD34− hDPSCs did not show any expression of CD271 and nestin, typical neural markers, while STRO-1+/c-Kit+/CD34+ hDPSCs expressed both. Conclusions These results suggest that STRO-1+/c-Kit+/CD34− hDPSCs and STRO-1+/c-Kit+/CD34+ hDPSCs might represent two distinct stem cell populations, with different properties. These results trigger further analyses to deeply investigate the hypothesis that more than a single stem cell population resides within the dental pulp, to better define the flexibility of application of hDPSCs in regenerative medicine.
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91
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Efimenko AY, Kochegura TN, Akopyan ZA, Parfyonova YV. Autologous Stem Cell Therapy: How Aging and Chronic Diseases Affect Stem and Progenitor Cells. Biores Open Access 2015; 4:26-38. [PMID: 26309780 PMCID: PMC4497652 DOI: 10.1089/biores.2014.0042] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
During recent years different types of adult stem/progenitor cells have been successfully applied for the treatment of many pathologies, including cardiovascular diseases. The regenerative potential of these cells is considered to be due to their high proliferation and differentiation capacities, paracrine activity, and immunologic privilege. However, therapeutic efficacy of the autologous stem/progenitor cells for most clinical applications remains modest, possibly because of the attenuation of their regenerative potential in aged patients with chronic diseases such as cardiovascular diseases and metabolic disorders. In this review we will discuss the risk factors affecting the therapeutic potential of adult stem/progenitor cells as well as the main approaches to mitigating them using the methods of regenerative medicine.
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Affiliation(s)
- Anastasia Yu. Efimenko
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Tatiana N. Kochegura
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Zhanna A. Akopyan
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Yelena V. Parfyonova
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russian Federation
- Laboratory of Angiogenesis, Russian Cardiology Research and Production Complex, Moscow, Russian Federation
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92
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Díaz-Flores L, Gutiérrez R, Lizartza K, Goméz MG, García MDP, Sáez FJ, Díaz-Flores L, Madrid JF. Behavior of in situ human native adipose tissue CD34+ stromal/progenitor cells during different stages of repair. Tissue-resident CD34+ stromal cells as a source of myofibroblasts. Anat Rec (Hoboken) 2014; 298:917-30. [PMID: 25387858 DOI: 10.1002/ar.23086] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 09/12/2014] [Indexed: 12/22/2022]
Abstract
CD34+ adipose stromal cells are scattered in the adipose tissue and found in the CD34+ population of the stromal vascular fraction (SVF). This fraction includes adipose-derived stromal/stem/progenitor cells (ASCs), which have attracted considerable attention and show great promise for the future of regenerative medicine. Studies in this field have been undertaken mainly in vitro. In this work, however, we assessed the characteristics of human adipose tissue-resident CD34+ stromal cells in normal conditions and when activated in vivo during inflammatory/repair processes at different stages of evolution. In normal adipose tissue, these cells showed a characteristic location (peri/paravascular and between adipocytes), a fusiform or stellate morphology, long and moniliform processes, and scarce organelles. During inflammatory/repair stages, native CD34+ stromal cells increased in size, proliferated, developed numerous organelles of synthesis, lost CD34 expression, and differentiated into myofibroblasts (αSMA expression and typical ultrastructure). In double-stained sections, cells expressing both CD34 and αSMA were observed. CD34 expression correlated positively with a high proliferative capacity (Ki-67 expression). Conversely, CD34 expression was lost with successive mitoses and with increased numbers of macrophages in the granulation tissue. CD34+ stromal cell behavior varied depending on proximity to (with myofibroblast differentiation) or remoteness from (with activated plump cells conserving CD34 expression) injury. In conclusion, our observations point to human adipose tissue-resident CD34+ stromal cells as an important source of myofibroblasts during inflammatory/repair processes. Moreover, stromal cell activation may occur with or without αSMA expression (with or without myofibroblast transformation) and with loss or persistence of CD34 expression, respectively.
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Affiliation(s)
- Lucio Díaz-Flores
- Department of Anatomy, Histology, Pathology and Radiology, Faculty of Medicine, University of La Laguna, Tenerife, Spain
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93
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Ahearne M, Lysaght J, Lynch AP. Combined influence of basal media and fibroblast growth factor on the expansion and differentiation capabilities of adipose-derived stem cells. CELL REGENERATION 2014; 3:13. [PMID: 25789158 PMCID: PMC4325938 DOI: 10.1186/2045-9769-3-13] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 11/18/2014] [Indexed: 01/05/2023]
Abstract
BACKGROUND Interest in adipose-derived stem cells (ASCs) has increased in recent years due to their multi-linage differentiation capabilities. While much work has been done to optimize the differentiation media, few studies have focused on examining the influence of different expansion media on cell behavior. In this study, three basal media (low glucose Dulbecco's modified Eagle's medium (DMEM), high glucose DMEM and DMEM-F12) supplemented with or without fibroblast growth factor 2 (FGF) were examined to assess their suitability for expanding ASCs. FINDINGS Flow cytometry, colony-forming unit assays (CFU-Fs) and differentiation assays were utilized to study cell behavior. High glucose media CFU-Fs produced fewest colonies while the addition of FGF increased colony size. By passage 2, the majority of cells were positive for CD44, 45, 73, 90 and 105 and negative for CD14, 31 and 45, indicating a mesenchymal phenotype. A sub-population of CD34 positive cells was present among passage 2 cells; however, by passage 4 the cells were negative for CD34. FGF has a negative effective on passage 4 ASC adipogenesis and high glucose media plus FGF-enhanced osteogenic capacity of passage 4 ASCs. FGF supplemented basal media were most suitable for chondrogenesis. High glucose media plus FGF appeared to be the most beneficial for priming ASCs to induce a keratocyte phenotype. CONCLUSIONS These findings demonstrate the reciprocal effect FGF and basal media have on ASCs. This research has implications for those interested regenerating bone, cartilage, cornea or adipose tissues.
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Affiliation(s)
- Mark Ahearne
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland ; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland
| | - Joanne Lysaght
- Department of Surgery, Institute of Molecular Medicine, Trinity Centre for Health Sciences, St. James's Hospital, Dublin 8, Ireland
| | - Amy P Lynch
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland ; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland
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García-Contreras M, Vera-Donoso CD, Hernández-Andreu JM, García-Verdugo JM, Oltra E. Therapeutic potential of human adipose-derived stem cells (ADSCs) from cancer patients: a pilot study. PLoS One 2014; 9:e113288. [PMID: 25412325 PMCID: PMC4239050 DOI: 10.1371/journal.pone.0113288] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 10/21/2014] [Indexed: 12/21/2022] Open
Abstract
Mesenchymal stem cells from adipose tissue (ADSCs) are an important source of cells for regenerative medicine. The therapeutic effect of culture-expanded adipose derived stem cells has been shown; however, optimal xeno-free culture conditions remain to be determined. Cancer patients, specifically those undergoing invasive surgery, constitute a subgroup of patients who could benefit from autologous stem cell transplantation. Although regenerative potential of their ADSCs could be affected by the disease and/or treatment, we are not aware of any study that has evaluated the therapeutic potential of ADSCs isolated from cancer patients in reference to that of ADSCs derived from healthy subjects. Here we report that ADSCs isolated from subabdominal adipose tissue of patients with urological neoplasms yielded similar growth kinetics, presented equivalent mesenchymal surface markers and showed similar differentiation potential into distinct mesodermal cell lineages: adipocytes, chondroblasts and osteoblasts than ADSCs isolated from adipose tissue of age-matched non-oncogenic participants, all under xeno-free growth culture conditions. Molecular karyotyping of patient expanded ADSCs genomes showed no disease-related alterations indicating their safety. In addition, vesicles <100 nm identified as exosomes (EXOs) which may be at least partly responsible for the attributed therapeutic paracrine effects of the ADSCs were effectively isolated from ADSCs and showed equivalent miRNA content regardless they were derived from cancer patients or non-oncogenic participants indicating that the repair capabilities of xeno-free expanded ADSCs are not compromised by patient condition and therefore their xeno-free culture expanded ADSCs should be suitable for autologous stem cell transplantation in a clinical setting.
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Affiliation(s)
- Marta García-Contreras
- Facultad de Medicina, Universidad Católica de Valencia “San Vicente Mártir”, Valencia, Spain
| | | | | | - José Manuel García-Verdugo
- Laboratory of Comparative Neurobiology, Instituto Cavanilles de Biodiversidad y Biología Evolutiva, University of Valencia, CIBERNED, Paterna, Valencia, Spain
| | - Elisa Oltra
- Facultad de Medicina, Universidad Católica de Valencia “San Vicente Mártir”, Valencia, Spain
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95
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Characterization of mechanical and regenerative properties of human, adipose stromal cells. Cell Mol Bioeng 2014; 7:585-597. [PMID: 25484990 DOI: 10.1007/s12195-014-0350-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The stromal vascular fraction (SVF) of human adipose tissue is a heterogeneous population, with component cell types that may or may not contribute to its regenerative potential. Recent findings indicate that single-cell mechanical biomarkers are characteristic of cell type and can be used comparably to gene and protein expressions to identify cell populations. In this study, we characterized mechanical properties and differentiation potential of cell types present in the SVF. Fluorescence-activated cell sorting was used to isolate four distinct populations based on surface markers: endothelial cells (EC), adipose-derived stem cells (ASCs), pre-adipocytes, and smooth muscle cells (SMC). Atomic force microscopy was used to mechanically characterize sorted cell populations and unsorted SVF. Differentiation capabilities of sorted and unsorted populations were evaluated by quantifying lipid production and calcified matrix deposition. Cells populating the SVF exhibited a range of mechanical properties, with ECs, ASCs, pre-adipocytes, and unsorted SVF cells being significantly more compliant than SMCs. Lineage-specific metabolite production was most robust in SVF cells, followed by ASCs, with the other cell types showing little or no potential, suggesting the unsorted populations may benefit from a paracrine response that is lacking once the cells are sorted into more uniform cell populations.
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96
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Yi T, Kim WK, Choi JS, Song SY, Han J, Kim JH, Kim WS, Park SG, Lee HJ, Cho YK, Hwang SJ, Song SU, Sung JH. Isolation of adipose-derived stem cells by using a subfractionation culturing method. Expert Opin Biol Ther 2014; 14:1551-60. [DOI: 10.1517/14712598.2014.943661] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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97
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Baer PC. Adipose-derived mesenchymal stromal/stem cells: An update on their phenotype in vivo and in vitro. World J Stem Cells 2014; 6:256-265. [PMID: 25126376 PMCID: PMC4131268 DOI: 10.4252/wjsc.v6.i3.256] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 03/10/2014] [Accepted: 06/16/2014] [Indexed: 02/06/2023] Open
Abstract
Adipose tissue is a rich, ubiquitous and easily accessible source for multipotent stromal/stem cells and has, therefore, several advantages compared to other sources of mesenchymal stromal/stem cells. Several studies have tried to identify the origin of the stromal/stem cell population within adipose tissue in situ. This is a complicated attempt because no marker has currently been described which unambiguously identifies native adipose-derived stromal/stem cells (ASCs). Isolated and cultured ASCs are a non-uniform preparation consisting of several subsets of stem and precursor cells. Cultured ASCs are characterized by their expression of a panel of markers (and the absence of others), whereas their in vitro phenotype is dynamic. Some markers were expressed de novo during culture, the expression of some markers is lost. For a long time, CD34 expression was solely used to characterize haematopoietic stem and progenitor cells, but now it has become evident that it is also a potential marker to identify an ASC subpopulation in situ and after a short culture time. Nevertheless, long-term cultured ASCs do not express CD34, perhaps due to the artificial environment. This review gives an update of the recently published data on the origin and phenotype of ASCs both in vivo and in vitro. In addition, the composition of ASCs (or their subpopulations) seems to vary between different laboratories and preparations. This heterogeneity of ASC preparations may result from different reasons. One of the main problems in comparing results from different laboratories is the lack of a standardized isolation and culture protocol for ASCs. Since many aspects of ASCs, such as the differential potential or the current use in clinical trials, are fully described in other recent reviews, this review further updates the more basic research issues concerning ASCs’ subpopulations, heterogeneity and culture standardization.
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98
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Najar M, Rodrigues RM, Buyl K, Branson S, Vanhaecke T, Lagneaux L, Rogiers V, De Kock J. Proliferative and phenotypical characteristics of human adipose tissue-derived stem cells: comparison of Ficoll gradient centrifugation and red blood cell lysis buffer treatment purification methods. Cytotherapy 2014; 16:1220-8. [PMID: 25065636 DOI: 10.1016/j.jcyt.2014.05.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 05/26/2014] [Accepted: 05/28/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND AIMS Adult human subcutaneous adipose tissue harbors a multipotent stem cell population, the so-called human adipose tissue-derived mesenchymal stromal cells (AT-MSCs). These cells are able to differentiate in vitro into various cell types and possess immunomodulatory features. Yet procedures to obtain AT-MSCs can vary significantly. The two most extensively used AT-MSC purification techniques are (i) density gradient centrifugation using Ficoll and (ii) red blood cell (RBC) lysis buffer treatment of the stromal vascular fraction. In the context of potential clinical cell therapy, the stem cell yield after purification and upon consecutive passages, as well as the purity of the obtained cell population, are of utmost importance. METHODS We investigated the expansion capacity and purity of AT-MSCs purified by both procedures immediately after isolation and upon consecutive passages. We also investigated possible purification-dependent differences in their expression of immune-inhibitory factors and cell adhesion molecules. RESULTS We found that RBC lysis buffer treatment is a more robust and easier method to purify AT-MSCs than density gradient fractionation. However, the resulting AT-MSC-RBC population contains a significantly higher number of CD34(+) cells, particularly during the first passages after plating. From passage 4 onward, no significant differences could be observed between both populations with respect to the immunophenotype, expansion capacity and expression of immune inhibitory factors and cell adhesion molecules. CONCLUSIONS Our data show that RBC lysis buffer treatment may be a good alternative to density fractionation, providing a faster, more robust and easier method to purify AT-MSCs with biologically preserved characteristics.
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Affiliation(s)
- Mehdi Najar
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Robim M Rodrigues
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Brussels, Belgium
| | - Karolien Buyl
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Brussels, Belgium
| | - Steven Branson
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Brussels, Belgium
| | - Tamara Vanhaecke
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Brussels, Belgium
| | - Laurence Lagneaux
- Laboratory of Clinical Cell Therapy, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Vera Rogiers
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Brussels, Belgium
| | - Joery De Kock
- Department of In Vitro Toxicology and Dermato-Cosmetology, Center for Pharmaceutical Research, Vrije Universiteit Brussel, Brussels, Belgium.
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99
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Busser H, De Bruyn C, Urbain F, Najar M, Pieters K, Raicevic G, Meuleman N, Bron D, Lagneaux L. Isolation of adipose-derived stromal cells without enzymatic treatment: expansion, phenotypical, and functional characterization. Stem Cells Dev 2014; 23:2390-400. [PMID: 24805167 DOI: 10.1089/scd.2014.0071] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Stem cell therapy is a potential method for the treatment of numerous diseases. The most frequent cellular source is bone-marrow-derived mesenchymal stromal cells (BM-MSCs). Human adipose-derived stromal cells (ADSCs) share similar properties with BM-MSCs as they support hematopoiesis, modulate ongoing immune responses, and differentiate into cells of mesodermal origin. On the other hand, ADSCs have higher frequency in situ, higher availability, and very few ethical issues compared with BM-MSCs, giving them an advantage over BM-MSCs for clinical use. Most of the methods used to isolate ADSCs contain a collagenase digestion step, but the type of collagenase and time of sample digestion vary among studies and these differences could have an impact on the cell properties and thus in result comparison. To overcome this obstacle, we propose a new method to isolate ADSCs from lipoaspirate without collagenase digestion step. We compared ADSCs obtained with our method versus classical protocol using collagenase digestion. Cells obtained with our method are equivalent but they have a better long-term hematopoietic support than those obtained with classical method. Moreover, our method has an advantage over the classical one as it is easier, safer, faster, less expensive, and more consistent with good manufacturing practices to obtain large number of ADSCs ex vivo.
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Affiliation(s)
- Hélène Busser
- 1 Laboratory of Clinical Cell Therapy, Jules Bordet Institut, Université Libre de Bruxelles, Brussels, Belgium
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100
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Beane OS, Fonseca VC, Darling EM. Adipose-derived stem cells retain their regenerative potential after methotrexate treatment. Exp Cell Res 2014; 327:222-33. [PMID: 24992046 DOI: 10.1016/j.yexcr.2014.06.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 06/05/2014] [Accepted: 06/22/2014] [Indexed: 12/19/2022]
Abstract
In musculoskeletal tissues like bone, chemotherapy can impair progenitor cell differentiation and proliferation, resulting in decreased bone growth and mineralization throughout a patient׳s lifetime. In the current study, we investigated the effects of chemotherapeutics on adipose-derived stem cell (ASC) function to determine whether this cell source could be a candidate for repairing, or even preventing, chemotherapy-induced tissue damage. Dose-dependent proliferation rates of ASCs and normal human fibroblasts (NHFs) were quantified after treatment with cytarabine (CY), etoposide (ETO), methotrexate (MTX), and vincristine (VIN) using a fluorescence-based assay. The influence of MTX on the multipotency of ASCs and freshly isolated stromal vascular fraction (SVF) cells was also evaluated using lineage-specific stains and spectrophotometry. ASC and NHF proliferation were equally inhibited by exposure to CY and ETO; however, when treated with MTX and VIN, ASCs exhibited greater resistance. This was especially apparent for MTX-treated samples, with ASC proliferation showing no inhibition for clinically relevant MTX doses ranging from 0.1 to 50 μM. Additional experiments revealed that the differentiation potential of ASCs was not affected by MTX treatment and that upregulation of dihydrofolate reductase possibly contributed to this response. Moreover, SVF cells, which include ASCs, exhibited similar resistance to MTX impairment, with respect to cellular proliferation, clonogenicity, and differentiation capability. Therefore, we have shown that the regenerative properties of ASCs resist the cytotoxicity of MTX, identifying these cells as a potential key for repairing musculoskeletal damage in patients undergoing chemotherapy.
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Affiliation(s)
- Olivia S Beane
- Center for Biomedical Engineering, Brown University, Providence, RI, USA
| | - Vera C Fonseca
- Department of Molecular Pharmacology, Physiology, & Biotechnology, Brown University, Providence, RI, USA
| | - Eric M Darling
- Center for Biomedical Engineering, Brown University, Providence, RI, USA; Department of Molecular Pharmacology, Physiology, & Biotechnology, Brown University, Providence, RI, USA; Department of Orthopaedics, Brown University, Providence, RI, USA; School of Engineering, Brown University, Providence, RI, USA.
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