1
|
Ogah O, Iyawe E, Okwunze K, Nwamadiegesi C, Obiekwe F, Fabowale M, Okeke M, Orimolade O, Olalusi O, Aje A, Adebiyi A. LEFT VENTRICULAR NONCOMPACTION CARDIOMYOPATHY: A SCOPING REVIEW. Ann Ib Postgrad Med 2023; 21:8-16. [PMID: 38298349 PMCID: PMC10811705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/30/2023] [Indexed: 02/02/2024] Open
Abstract
Introduction There has been an upsurge in the reporting of cases of Left Ventricular Noncompaction (LVNC) cardiomyopathy in medical literature in the last 35 years due to advances in medical imaging.The condition was first described in 1926 and the first reported case by echocardiography was in 1984. The American Heart Association considers LVNC a primary cardiomyopathy of genetic origin, while the European Society of Cardiology and the World Health Organization grouped it as an unclassified cardiomyopathy. Its variability in terms of genetic profile, phenotypic expression, clinical presentation, and histopathological findings makes it somewhat a variant of other cardiomyopathies. Case presentation Patients with LVNC cardiomyopathy may not have any symptoms or may present with ventricular arrhythmias, heart failure, thromboembolism, or sudden death. LVNC cardiomyopathy diagnosis is typically made by echocardiography, although there are higher resolution cardiac imaging techniques. Management will depend on the patient's clinical presentation. Due to its genetic association, there is a need to screen living relatives once the diagnosis is made in an individual. Conclusion The aim of this paper is to review current knowledge on this condition.
Collapse
Affiliation(s)
- O.S. Ogah
- Department of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - E.P. Iyawe
- Alexander Brown Hall, College of Medicine, University of Ibadan, Nigeria
| | - K.F. Okwunze
- Alexander Brown Hall, College of Medicine, University of Ibadan, Nigeria
| | - C.A. Nwamadiegesi
- Alexander Brown Hall, College of Medicine, University of Ibadan, Nigeria
| | - F.E. Obiekwe
- Alexander Brown Hall, College of Medicine, University of Ibadan, Nigeria
| | - M.O. Fabowale
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - M. Okeke
- Alexander Brown Hall, College of Medicine, University of Ibadan, Nigeria
| | - O.A. Orimolade
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - O.V. Olalusi
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - A. Aje
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| | - A. Adebiyi
- Department of Medicine, University of Ibadan, Ibadan, Nigeria
- Department of Medicine, University College Hospital, Ibadan, Nigeria
| |
Collapse
|
2
|
Semenzato M, Zambello L, Fumarola S, Motta E, Piroli L, Scorrano L, Bean C. A Novel Benchtop Device for Efficient and Simple Purification of Cytokines, Growth Factors and Stem Cells from Adipose Tissue. Biomedicines 2023; 11:biomedicines11041006. [PMID: 37189624 DOI: 10.3390/biomedicines11041006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 05/17/2023] Open
Abstract
Lipoaspirates represent a source of adult stem cells, cytokines, and growth factors of adipocyte origin with immunomodulation and regenerative medicine potential. However, rapid and simple protocols for their purification using self-contained devices that can be deployed at the points of care are lacking. Here, we characterize and benchmark a straightforward mechanical dissociation procedure to collect mesenchymal stem cells (MSCs) and soluble fractions from lipoaspirates. IStemRewind, a benchtop self-contained cell purification device, allowed a one-procedure purification of cells and soluble material from lipoaspirates with minimal manipulation. The recovered cellular fraction contained CD73+, CD90+, CD105+, CD10+ and CD13+ MSCs. These markers were comparably expressed on MSCs isolated using IstemRewind or classic enzymatic dissociation procedures, apart from CD73+ MSCs, which were even more abundant in IStemRewind isolates. IstemRewind-purified MSCs retained viability and differentiation into adipocytes and osteocytes, even after a freezing-thawing cycle. Levels of IL4, IL10, bFGF and VEGF were higher compared to the pro-inflammatory cytokines TNFα, IL1β and IL6 in the IStemRewind-isolated liquid fraction. In sum, IStemRewind can be useful for straightforward, rapid, and efficient isolation of MSCs and immunomodulatory soluble factors from lipoaspirates, opening the possibility to directly isolate and employ them at the point-of-care.
Collapse
Affiliation(s)
- Martina Semenzato
- Department of Biology, University of Padova, Via U.Bassi 58/B, 35121 Padova, Italy
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
| | - Ludovica Zambello
- Department of Biology, University of Padova, Via U.Bassi 58/B, 35121 Padova, Italy
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
| | - Stefania Fumarola
- InScientiaFides Foundation, Strada di Paderna, 2, 47895 San Marino, San Marino
| | | | - Luana Piroli
- InScientiaFides Foundation, Strada di Paderna, 2, 47895 San Marino, San Marino
| | - Luca Scorrano
- Department of Biology, University of Padova, Via U.Bassi 58/B, 35121 Padova, Italy
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
| | - Camilla Bean
- Veneto Institute of Molecular Medicine, 35129 Padova, Italy
- Department of Medicine, University of Udine, Piazzale Kolbe 4, 33100 Udine, Italy
| |
Collapse
|
3
|
Dradjat RS, Sananta P, Rosandi RD, Siahaan LD. Osteocalcin biomarker level evaluation on fracture healing with bone defect after stromal vascular fraction application in murine model. Ann Med Surg (Lond) 2021; 71:103020. [PMID: 34840768 PMCID: PMC8606847 DOI: 10.1016/j.amsu.2021.103020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 11/15/2022] Open
Abstract
Introduction Bone defect (3 mm in murine model) is a condition when the bone tissue cannot undergo a natural healing process caused by severe trauma, tumor, or irradiation. A bone defect is a challenge even for experienced Orthopaedic surgeons. Stromal vascular fraction (SVF) is a heterogeneous cell population derived from adipose tissue that results from minimal manipulation of the adipose tissue itself. Several studies have elucidated the effect of either SVF on bone defect healing. However, to the author's knowledge, there is no study evaluating the effect of SVF application on fracture healing, which was measured with osteocalcin biomarker. This study aims to evaluate the effect of SVF application on bone defect healing measured with osteocalcin as a biomarker of bone healing. Materials and methods This was an animal study involving twelve Wistar strain Rattus norvegivus. They were divided into three groups: negative group (normal rats), positive group (rats with bone defect and treated without SVF application), and SVF group (rats with bone defect and treated with SVF application). After 30 days, the rats were sacrificed, the osteocalcin biomarkers were evaluated. This biomarker was quantified using ELISA. Results Osteocalcin biomarker expressions were higher in the group treated with SVF application than those without using SVF. All comparisons of the SVF group and positive control group showed significant differences (p < 0.05). Conclusion SVF application could aid the healing process in a murine model with bone defect, marked by increased osteocalcin levels. A study evaluating the effect of SVF application on fracture healing, measured with osteocalcin biomarker. Osteocalcin is useful in the evaluation of bone turnover and the clinical setting of bone loss. SVF could aid the healing process in a murine model with bone defect. A bone defect is a challenge even for experienced Orthopaedic surgeons.
Collapse
Affiliation(s)
- Respati S Dradjat
- Teaching Staff of Orthopaedic and Traumatology Department, Faculty of Medicine Universitas Brawijaya, RSUD Dr. Saiful Anwar, Malang, Indonesia
| | - Panji Sananta
- Teaching Staff of Orthopaedic and Traumatology Department, Faculty of Medicine Universitas Brawijaya, RSUD Dr. Saiful Anwar, Malang, Indonesia
| | - Rizqi Daniar Rosandi
- Resident of Orthopaedic and Traumatology Department, Faculty of Medicine Universitas Brawijaya, RSUD Dr. Saiful Anwar, Malang, Indonesia
| | - Lasa Dhakka Siahaan
- Research Assistant Orthopaedic and Traumatology Department, Faculty of Medicine Universitas Brawijaya, RSUD Dr. Saiful Anwar, Malang, Indonesia
| |
Collapse
|
4
|
Dradjat RS, Sananta P, Rosandi RD, Siahaan LD. Effect of Stromal Vascular Fraction on Fracture Healing with Bone Defects by Examination of Bone Morphogenetic Protein-2 Biomarkers in Murine Model. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.7385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Fractures and segmental bone defects are a significant cause of morbidity and a source of a high economic burden in healthcare. A severe bone defect (3 mm in murine model) is a devastating condition, which the bone cannot heal naturally despite surgical stabilization and usually requires further surgical intervention. The stromal vascular fraction (SVF) contains a heterogeneous collection of cells and several components, primarily: MSCs, HSCs, Treg cells, pericytic cells, AST cells, extracellular matrix, and complex microvascular beds (fibroblasts, white blood cells, dendritic cells, and intra-adventitial smooth muscular-like cells). Bone morphogenetic protein (BMP) is widely known for their important role in bone formation during mammalian development and confers a multifunctional role in the body, which has potential for therapeutic use. Studies have shown that BMPs play a role in the healing of large size bone defects.
AIM: In this study, researchers aim to determine the effect of administering SVF from adipose tissue on the healing process of bone defects assessed based on the level biomarker of BMP-2.
MATERIALS AND METHODS: This was an animal study involving 12 Wistar strain Rattus norvegivus. They were divided into three groups: Negative group (normal rats), positive group (rats with bone defect without SVF application), and SVF group (rats with bone defect with SVF application). After 30 days, the rats were sacrificed; the biomarkers that were evaluated are BMP-2. This biomarker was quantified using ELISA.
RESULTS: BMP-2 biomarker expressions were higher in the SVF application group than in the group without SVF. All comparisons of the SVF group and positive control group showed significant differences (p = 0.026).
CONCLUSION: SVF application could aid the healing process in a murine model with bone defect marked by the increased level of BMP-2 as a bone formation marker.
Collapse
|
5
|
Santoso ARB, Mustamsir E, Luqman Fadli M, Yuarno Phatama K, Wijaya AEP, Dhakka Siahaan L, Sugiarto A. The Effects of Stromal Vascular Fraction Administration in Stimulating Graft Healing Process after Anterior Cruciate Ligament Reconstruction Surgery in Rattus norvegicus. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.7229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Introduction: Ligament injuries commonly occur in the knee region, and the anterior cruciate ligament (ACL) being the most usually injured. Currently, autograft or allograft is the most common material used for ACL reconstruction surgery. The result of the ACL reconstruction depends on the healing process of the graft or ligamentization between graft and bone tunnel. This study aims to evaluate the effect of Stromal Vascular Fraction (SVF) intratunnel injection to stimulates graft healing following ACL reconstruction surgery, as measured by histology examination.
Method: This study was an experimental laboratory study with a post-test-only control group design using male Rattus novergicus. A random sampling procedure was used to choose the sample, which was then divided into two groups. The two groups consist of the control group that only had ACL reconstruction surgery and the treatment group that had reconstruction surgery with SVF administration.
Result: This study used Advanced Ligament Maturity Index (LMI) score and showed a significant improvement of graft healing in the treatment group compared to the control group. The measurement is based on the cellular, collagen, and vascular aspect testing with P < 0,05 for each subscore.
Conclusion: SVF intratunnel injection stimulates graft healing after ACL reconstruction surgery and causes a significant increase in cellular, collagen, and vascular aspects in the graft.
Collapse
|
6
|
Stromal-vascular fraction of adipose tissue as an alternative source of cellular material for regenerative medicine. UKRAINIAN BIOCHEMICAL JOURNAL 2021. [DOI: 10.15407/ubj93.01.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Adipose tissue is the most convenient source of cellular material for regenerative medicine as it can be obtained in significant quantities via cosmetic liposuction, lipoaspiration of subcutaneous fat or by excision of fat deposits. Adipose tissue consists of adipocytes and cells, which are the part of the stromal-vascular fraction (SVF). Different cell populations can be isolated from SVF, among which the population of adipose tissue stem cells (adipose-derived stem cells, ADSC) is especially important for regenerative medicine. SVF can be obtained relatively easily from adipose tissue (adipose tissue is an alternative to bone marrow in terms of being a source of stem cells) and used to treat various pathologies. Recent studies show that SVF not only has a therapeutic effect similar to that of ADSC, but in some cases is even more effective. The article provides the analysis of the main methods of SVF obtainment, characteristics of SVF cellular composition, its potential for use in clinical medicine and its main advantages over other sources of cellular material, including ADSC cultured in vitro, for regenerative medicine. Keywords: adipocytes, adipose-derived stem cells, regenerative medicine, stromal-vascular fraction
Collapse
|
7
|
Karina K, Rosliana I, Rosadi I, Schwartz R, Sobariah S, Afini I, Widyastuti T, Remelia M, Wahyuningsih KA, Pawitan JA. Safety of Technique and Procedure of Stromal Vascular Fraction Therapy: From Liposuction to Cell Administration. SCIENTIFICA 2020; 2020:2863624. [PMID: 32695550 PMCID: PMC7362293 DOI: 10.1155/2020/2863624] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/24/2020] [Accepted: 06/12/2020] [Indexed: 05/12/2023]
Abstract
BACKGROUND Stromal vascular fraction (SVF) therapy has been performed over the past six years to treat 421 patients by our group in five clinical centers. Autologous SVF, which is a substance containing stem cells, was isolated from lipoaspirate, mixed with platelet-rich plasma (PRP), and administered to patients with degenerative diseases, autoimmune diseases, trauma, aging, and other diseases with unknown etiology. This study aimed to determine the safety of SVF and PRP that were given through infusion, spinal, and intra-articular injection. METHODS The lipoaspirate was treated with a tissue-dissociating enzyme, and then, through centrifugation, SVF was isolated. In addition, blood was drawn from each patient, and PRP was isolated. Autologous PRP and SVF were administered to all subjects by intravenous (IV) injection. A minority group within the population received an additional spinal or intra-articular injection. The type of intervention was determined by each disease evaluation. The cell doses and adverse events for each patient were documented and analyzed. RESULTS Cell dose that was considered to be safe was less than 10 billion SVF cells in 250 cc of normal saline, for IV injection, and less than 1 billion SVF, for intra-articular and spinal injection. Adverse events were not severe and were treated successfully. Any observed adverse events were identified as a result of spinal or intra-articular injections and were not related to SVF or PRP. CONCLUSIONS Our results showed that administration of high dose of SVF until 10 billion cells in a majority of 421 patients through infusion, spinal, and intra-articular injection was feasible without causing major adverse events and should be further investigated in well-designed phase I-II clinical trial to address the safety and efficacy of therapy.
Collapse
Affiliation(s)
- Karina Karina
- Klinik Hayandra, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
| | - Iis Rosliana
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
| | - Imam Rosadi
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
| | - Rachel Schwartz
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
- Boston Children's Hospital, 300 Longwood Ave, Boston, MA, USA
| | - Siti Sobariah
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
| | - Irsyah Afini
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
| | - Tias Widyastuti
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
| | - Melinda Remelia
- Department of Basic Biomedicine, Faculty of Medicine, Universitas Kristen Indonesia, Jakarta, Indonesia
| | - Komang Ardi Wahyuningsih
- Klinik Hayandra, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
- HayandraLab, Yayasan Hayandra Peduli, Jl. Kramat VI No. 11, Jakarta Pusat, Indonesia
- Department of Histology, Universitas Katolik Indonesia Atma Jaya, Jakarta, Indonesia
| | - Jeanne A. Pawitan
- Department of Histology, Faculty of Medicine, Universitas Indonesia, Jl. Salemba 6, Jakarta Pusat, Indonesia
- Stem Cell Medical Technology Integrated Service Unit, Dr. Cipto Mangunkusumo General Hospital/Faculty of Medicine, Universitas Indonesia, Jl. Diponegoro 71, Jakarta 10430, Indonesia
- Stem Cell and Tissue Engineering Research Center, Indonesia Medical Education and Research Institute (IMERI), Faculty of Medicine, Universitas Indonesia, Jl. Salemba 6, Jakarta 10430, Indonesia
| |
Collapse
|
8
|
Cryopreservation of Stromal Vascular Fraction Cells Reduces Their Counts but Not Their Stem Cell Potency. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2019; 7:e2321. [PMID: 31942351 PMCID: PMC6952153 DOI: 10.1097/gox.0000000000002321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 11/25/2022]
Abstract
Adipose-derived stem cells are derived from the nonfat component of adipose tissue termed the stromal vascular fraction (SVF). The use of freshly isolated autologous SVF cells as an alternative to adult stem cells is becoming more common. Repeated SVF administration for improved clinical outcomes is complicated by the need for repeated liposuction. This can be overcome by cryopreservation of SVF cells. The current study aimed to assess whether SVF cells retain their stem cell potency during cryopreservation. Methods SVF cells isolated from lipoaspirates (donor age: 46.1 ± 11.7 y; body mass index: 29.3 ± 4.8 kg/m2) were analyzed either immediately after isolation or following cryopreservation at -196°C. Analyses included assessment of nucleated cell counts by methylene blue staining, colony-forming unit fibroblast counts, surface marker expression using a flow cytometric panel (CD45, CD34, CD31, CD73, CD29, and CD105), expansion in culture, and differentiation to fat and bone. Results While cryopreservation reduced the number of viable SVF cells, stem cell potency was preserved, as demonstrated by no significant difference in the proliferation, surface marker expression in culture, bone and fat differentiation capacity, and the number of colony-forming unit fibroblasts in culture, in cryopreserved versus fresh SVF cells. Importantly, reduced cell counts of cryopreserved cells were due, mainly, to a reduction in hematopoietic CD45+ cells, which was accompanied by increased proportions of CD45-CD34+CD31- stem cell progenitor cells compared to fresh SVF cells. Conclusions Cryopreservation of SVF cells did not affect their in vitro stem cell potency and may therefore enable repeated SVF cell administrations, without the need for repeated liposuction.
Collapse
|
9
|
Born S, Dörfel MJ, Hartjen P, Haschemi Yekani SA, Luecke J, Meutsch JK, Westphal JK, Birkelbach M, Köhnke R, Smeets R, Krueger M. A short-term plastic adherence incubation of the stromal vascular fraction leads to a predictable GMP-compliant cell-product. ACTA ACUST UNITED AC 2019; 9:161-172. [PMID: 31508331 PMCID: PMC6726751 DOI: 10.15171/bi.2019.20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/14/2022]
Abstract
![]()
Introduction:Mesenchymal stromal/stem cells (MSCs) derived from fat tissue are an encouraging tool for regenerative medicine. They share properties similar to the bone marrow-derived MSCs, but the amount of MSCs per gram of fat tissue is 500x higher. The fat tissue can easily be digested by collagenase, releasing a heterogeneous cell fraction called stromal vascular fraction (SVF) which contains a variable amount of stromal/stem cells. In Europe, cell products like the SVF derived from fat tissue are considered advanced therapy medicinal product (ATMPs). As a consequence, the manufacturing process has to be approved via GMP-compliant process validation. The problem of the process validation for SVF is the heterogeneity of this fraction.
Methods: Here, we modified existing purification strategies by adding an additional plastic adherence incubation of maximal 20 hours after SVF isolation. The resulting cell fraction was characterized and compared to SVF as well as cultivated adipose-derived stromal/stem cells (ASCs) with respect to viability and cell yield, the expression of surface markers, differentiation potential and cytokine expression.
Results: Short-term incubation significantly reduced the heterogeneity of the resulting cell fraction compared to SVF. The cells were able to differentiate into adipocytes, chondrocytes, and osteoblasts. More importantly, they expressed trophic proteins which have been previously associated with the beneficial effects of MSCs. Furthermore, GMP compliance of the production process described herein was acknowledged by the national regulatory agencies (DE_BB_01_GMP_2017_1018).
Conclusion: Addition of a short purification-step after the SVF isolation is a cheap and fast strategy to isolate a homogeneous uncultivated GMP-compliant cell fraction of ASCs.
Collapse
Affiliation(s)
| | | | - Philip Hartjen
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | | | | | | | | | - Moritz Birkelbach
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Robert Köhnke
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Division, Regenerative Orofacial Medicine, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | | |
Collapse
|
10
|
Parsons AM, Ciombor DM, Liu PY, Darling EM. Regenerative Potential and Inflammation-Induced Secretion Profile of Human Adipose-Derived Stromal Vascular Cells Are Influenced by Donor Variability and Prior Breast Cancer Diagnosis. Stem Cell Rev Rep 2018; 14:546-557. [PMID: 29663271 DOI: 10.1007/s12015-018-9813-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Adipose tissue contains a heterogeneous population of stromal vascular fraction (SVF) cells that work synergistically with resident cell types to enhance tissue healing. Ease of access and processing paired with therapeutic promise make SVF cells an attractive option for autologous applications in regenerative medicine. However, inherent variability in SVF cell therapeutic potential from one patient to another hinders prognosis determination for any one person. This study investigated the regenerative properties and inflammation responses of thirteen, medically diverse human donors. Using non-expanded primary lipoaspirate samples, SVF cells were assessed for robustness of several parameters integral to tissue regeneration, including yield, viability, self-renewal capacity, proliferation, differentiation potential, and immunomodulatory cytokine secretion. Each parameter was selected either for its role in regenerative potential, defined here as the ability to heal tissues through stem cell repopulation and subsequent multipotent differentiation, or for its potential role in wound healing through trophic immunomodulatory activity. These data were then analyzed for consistent and predictable patterns between and across measurements, while also investigating the influence of the donors' relevant medical histories, particularly if the donor was in remission following breast cancer treatment. Analyses identified positive correlations among the expression of three cytokines: interleukin (IL)-6, IL-8, and monocyte chemoattractant protein (MCP)-1. The expression of these cytokines also positively related to self-renewal capacity. These results are potentially relevant for establishing expectations in both preclinical experiments and targeted clinical treatment strategies that use stem cells from patients with diverse medical histories.
Collapse
Affiliation(s)
- Adrienne M Parsons
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, 175 Meeting Street, Box G-B397, Providence, RI, 02912, USA
| | - Deborah M Ciombor
- Department of Plastic and Reconstructive Surgery, Brown University, Providence, RI, USA
- Center for Biomedical Engineering, Brown University, Providence, RI, USA
| | - Paul Y Liu
- Department of Plastic and Reconstructive Surgery, Brown University, Providence, RI, USA
| | - Eric M Darling
- Department of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, 175 Meeting Street, Box G-B397, Providence, RI, 02912, USA.
- Center for Biomedical Engineering, Brown University, Providence, RI, USA.
- School of Engineering, Brown University, Providence, RI, USA.
- Department of Orthopaedics, Brown University, Providence, RI, USA.
| |
Collapse
|
11
|
Chernoff G, Bryan N, Park AM. Mesothelial Stem Cells and Stromal Vascular Fraction. Facial Plast Surg Clin North Am 2018; 26:487-501. [DOI: 10.1016/j.fsc.2018.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
12
|
Kim DY, Hong HR, Choi EW, Yoon SW, Jang YJ. Efficacy and Safety of Autologous Stromal Vascular Fraction in the Treatment of Empty Nose Syndrome. Clin Exp Otorhinolaryngol 2018; 11:281-287. [PMID: 29764011 PMCID: PMC6222192 DOI: 10.21053/ceo.2017.01634] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 03/29/2018] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Regenerative treatment using stem cells may serve as treatment option for empty nose syndrome (ENS), which is caused by the lack of turbinate tissue and deranged nervous system in the nasal cavity. We aimed to assess the efficacy and safety of the autologous stromal vascular fraction (SVF) in the treatment of ENS. METHODS In this prospective observational clinical study, we enrolled 10 ENS patients who volunteered to undergo treatment of ENS through the injection of autologous SVF. Data, including demographic data, pre- and postoperative Sino-Nasal Outcome Test-25 (SNOT-25) scores, overall patient satisfaction, and postoperative complications, were prospectively collected. Nasal secretion was assessed using the polyurethane foam absorption method, and the levels of biological markers were analyzed in both ENS group and control group using enzyme-linked immunosorbent assay. The SVF extracted from abdominal fat was diluted and injected into both inferior turbinates. RESULTS Among the 10 initial patients, one was excluded from the study. Subjective satisfaction was rated as "much improved" in two and "no change" in seven. Among the improved patients, the mean preinjection SNOT-25 score was 55.0 and the score at 6 months after injection was 19.5. However, the average SNOT-25 score of nine participants at 6 months after injection (mean±standard deviation, 62.4±35.8) did not differ significantly from the baseline SNOT25 score (70.1±24.7, P>0.05, respectively). Among the various inflammatory markers assessed, the levels of interleukin (IL)-1β, IL-8, and calcitonin gene-related peptide were significantly higher in ENS patients. Compared with preinjection secretion level, the nasal secretions from SVF-treated patients showed decreased expressions of IL-1β and IL-8 after injection. CONCLUSION Although SVF treatment appears to decrease the inflammatory cytokine levels in the nasal mucosa, a single SVF injection was not effective in terms of symptom improvement and patient satisfaction. Further trials are needed to identify a more practical and useful regenerative treatment modality for patients with ENS.
Collapse
Affiliation(s)
- Do-Youn Kim
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hye Ran Hong
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | | | | | - Yong Ju Jang
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| |
Collapse
|
13
|
Kim SW, Choi JW, Lee CY, Lee J, Shin S, Lim S, Lee S, Kim IK, Lee HB, Hwang KC. Effects of donor age on human adipose-derived adherent stromal cells under oxidative stress conditions. J Int Med Res 2017; 46:951-964. [PMID: 28984178 PMCID: PMC5972239 DOI: 10.1177/0300060517731684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objective Adipose-derived stromal vascular fractions (SVFs) are heterogeneous complex populations of cells with therapeutic efficacy for tissue generation and vascular stabilization. SVFs have cardiomyogenic potential, and many researchers have examined the possibility of SVF transplantation for heart disease. In cell-based therapies, donor age affects the regenerative capability, cell yield, and differentiation potential of adult tissues; however, opposing or controversial results have been found in humans. We examined whether SVF transplantation into impaired heart tissue shows differential effects according to donor age. Methods We investigated differences in protein expression in human umbilical vein endothelial cells (HUVECs) co-cultured with adipose-derived adherent stromal cells (ADASs) from donors of different ages [>40-year-olds (40s group) and >60-year-olds (60s group)] under oxidative stress conditions. Results Although co-culturing HUVECs with ADASs ameliorated inflammation due to increased oxidative stress conditions, few differences were observed between the ADASs from the 40s and 60s groups. Moreover, the Database for Annotation, Visualization, and Integrated Discovery classification tool revealed differentially expressed genes in the Kyoto Encyclopedia of Genes and Genomes pathway associated with cytokine–cytokine receptor interaction in response to ADASs. Conclusion Protein expression profiles were unchanged in HUVECs induced by isolated ADASs from donors of different ages under oxidative stress conditions.
Collapse
Affiliation(s)
- Sang Woo Kim
- 1 395886 Catholic Kwandong University, International St. Mary's Hospital , Incheon Metropolitan City, Republic of Korea.,2 Institute for Bio-Medical Convergence, 54671 College of Medicine, Catholic Kwandong University , Gangneung-si, Gangwon-do, Republic of Korea
| | - Jung-Won Choi
- 2 Institute for Bio-Medical Convergence, 54671 College of Medicine, Catholic Kwandong University , Gangneung-si, Gangwon-do, Republic of Korea.,3 Department of Health and Environment, College of Engineering, Catholic Kwandong University, Gangneung-si, Gangwon-do, Republic of Korea
| | - Chang Youn Lee
- 4 Department of Integrated Omics for Biomedical Sciences, Graduate School, Yonsei University, Seoul, Republic of Korea
| | - Jiyun Lee
- 5 Brain Korea 21 PLUS Project for Medical Science, 37991 Yonsei University College of Medicine , Seoul, Republic of Korea
| | - Sunhye Shin
- 4 Department of Integrated Omics for Biomedical Sciences, Graduate School, Yonsei University, Seoul, Republic of Korea
| | - Soyeon Lim
- 1 395886 Catholic Kwandong University, International St. Mary's Hospital , Incheon Metropolitan City, Republic of Korea.,2 Institute for Bio-Medical Convergence, 54671 College of Medicine, Catholic Kwandong University , Gangneung-si, Gangwon-do, Republic of Korea
| | - Seahyoung Lee
- 1 395886 Catholic Kwandong University, International St. Mary's Hospital , Incheon Metropolitan City, Republic of Korea.,2 Institute for Bio-Medical Convergence, 54671 College of Medicine, Catholic Kwandong University , Gangneung-si, Gangwon-do, Republic of Korea
| | - Il-Kwon Kim
- 2 Institute for Bio-Medical Convergence, 54671 College of Medicine, Catholic Kwandong University , Gangneung-si, Gangwon-do, Republic of Korea.,6 Cell Therapy Center, 395886 Catholic Kwandong University, International St. Mary's Hospital , Incheon Metropolitan City, Republic of Korea
| | - Hoon-Bum Lee
- 7 Department of Plastic and Reconstructive Surgery, 395886 Catholic Kwandong University, International St. Mary's Hospital , Incheon Metropolitan City, Republic of Korea
| | - Ki-Chul Hwang
- 1 395886 Catholic Kwandong University, International St. Mary's Hospital , Incheon Metropolitan City, Republic of Korea.,2 Institute for Bio-Medical Convergence, 54671 College of Medicine, Catholic Kwandong University , Gangneung-si, Gangwon-do, Republic of Korea
| |
Collapse
|
14
|
Chen YW, Wang JR, Liao X, Li SH, Xiao LL, Cheng B, Xie GH, Song JX, Liu HW. Effect of suction pressures on cell yield and functionality of the adipose-derived stromal vascular fraction. J Plast Reconstr Aesthet Surg 2017; 70:257-266. [DOI: 10.1016/j.bjps.2016.10.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Revised: 10/09/2016] [Accepted: 10/31/2016] [Indexed: 12/29/2022]
|
15
|
Iddins CJ, Cohen SR, Goans RE, Wanat R, Jenkins M, Christensen DM, Dainiak N. Case Report: Industrial X-Ray Injury Treated With Non-Cultured Autologous Adipose-Derived Stromal Vascular Fraction (SVF). HEALTH PHYSICS 2016; 111:112-116. [PMID: 27356054 DOI: 10.1097/hp.0000000000000483] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Local cutaneous injuries induced by ionizing radiation (IR) are difficult to treat. Many have reported local injection of adipose-derived stromal vascular fraction (SVF), often with additional therapies, as an effective treatment of IR-induced injury even after other local therapies have failed. The authors report a case of a locally recurrent, IR-induced wound that was treated with autologous, non-cultured SVF without other concurrent therapy. A nondestructive testing technician was exposed to 130 kVp x rays to his non-dominant right thumb on 5 October 2011. The wound healed 4 mo after initial conservative therapy with oral/topical α-tocopherol, oral pentoxifylline, naproxen sodium, low-dose oral steroids, topical steroids, hyperbaric oxygen therapy (HBOT), oral antihistamines, and topical aloe vera. Remission lasted approximately 17 mo with one minor relapse in July 2012 after minimal trauma and subsequent healing. Aggressive wound breakdown during June 2013 required additional therapy with HBOT. An erythematous, annular papule developed over the following 12 mo (during which time the patient was not undergoing prescribed treatment). Electron paramagnetic resonance (EPR) done more than 2 mo after exposure to IR revealed dose estimates of 14 ± 3 Gy and 19 ± 6 Gy from two centers using different EPR techniques. The patient underwent debridement of the 0.5 cm papular area, followed by SVF injection into and around the wound bed and throughout the thumb without complication. Eleven months post SVF injection, the patient has been essentially asymptomatic with an intact integument. These results raise the possibility of prolonged benefit from SVF therapy without the use of cytokines. Since there is currently no consensus on the use of isolated SVF therapy in chronic, local IR-induced injury, assessment of this approach in an appropriately powered, controlled trial in experimental animals with local radiation injury appears to be indicated.
Collapse
Affiliation(s)
- C J Iddins
- *Radiation Emergency Assistance Center/Training Site, Oak Ridge, TN; †Division of Plastic Surgery,, University of California, San Diego, CA; ‡MJW Corporation, Amherst, NY; §TriHealth, Cincinnati, OH; **Yale University School of Medicine, New Haven, CT
| | | | | | | | | | | | | |
Collapse
|
16
|
Lander EB, Berman MH, See JR. Stromal Vascular Fraction Combined with Shock Wave for the Treatment of Peyronie's Disease. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2016; 4:e631. [PMID: 27257561 PMCID: PMC4874275 DOI: 10.1097/gox.0000000000000622] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 01/13/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND This pilot study was used to evaluate safety and subjective outcomes in a small series of Peyronie's disease patients using a combination of autologous stromal vascular fraction (SVF) and penile shock wave treatments. SVF can be procured and deployed into Peyronie's plaques, enabling the surgeons to procure and mobilize significant numbers of both adult mesenchymal stem cells and antiinflammatory cytokines released from the adipose collagen matrix after collagen digestion. Penile shock wave therapy stimulates targeted tissues and may activate stem cells found in the SVF and promote healing and fibrosis mitigation. METHODS SVF isolated from lipoaspirate was deployed by injection into 11 patients with Peyronie's plaques in combination with a series of shock wave treatments. Subjective outcomes tests performed at baseline and at 6 months included the Erectile Hardness Grading Score and the Peyronie's Disease Questionnaire (Questions 1-6). RESULTS All patients noted subjective improvement in curvature and subjective reduction in plaque size. Seven patients reported improvement in erectile function. Mean Erectile Hardness Grading Score increased from 2.7 to 3.5, and mean Peyronie's Disease Questionnaire scores decreased from 15.0 to 8.7. CONCLUSIONS SVF is known to have scar mitigation, antiinflammatory, immunomodulatory, and regenerative effects, and it has been used for a variety of conditions on an investigational basis. SVF containing mesenchymal stem cells can be procured in a closed surgical system from lipoaspirate in a same-day setting and deployed directly into Peyronie's plaques in combination with penile shock wave therapy resulting in plaque mitigation.
Collapse
Affiliation(s)
| | - Mark H Berman
- California Stem Cell Treatment Center, Rancho Mirage, Calif
| | - Jackie R See
- California Stem Cell Treatment Center, Rancho Mirage, Calif
| |
Collapse
|
17
|
Critical steps in the isolation and expansion of adipose-derived stem cells for translational therapy. Expert Rev Mol Med 2015; 17:e11. [PMID: 26052798 DOI: 10.1017/erm.2015.10] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Since the discovery of adipose-derived stem cells (ASCs), there have been high expectations of their putative clinical use. Recent advances support these expectations, and it is expected that the transition from pre-clinical and clinical studies to implementation as a standard treatment modality is imminent. However ASCs must be isolated and expanded according to good manufacturing practice guidelines and a basic assurance of quality, safety, and medical effectiveness is needed for authorisation by regulatory agencies, such as European Medicines Agency and US Food and Drug Administration. In this review, a collection of studies investigating the influence of different steps of the isolation and expansion protocol on the yield and functionality of ASCs has been presented in an attempt to come up with best recommendations that ensure potential beneficial clinical outcome of using ASCs in any therapeutic setting. If the findings confirm the initial observations of beneficial effects of ASCs, the path is paved for implementing these ASC-based therapies as standard treatment options.
Collapse
|
18
|
Bertheuil N, Chaput B, Ménard C, Varin A, Garrido I, Grolleau J, Sensébé L, Watier E, Tarte K. Les cellules stromales mésenchymateuses du tissu adipeux : historique, isolement, propriétés immunomodulatrices et perspectives cliniques. ANN CHIR PLAST ESTH 2015; 60:94-102. [DOI: 10.1016/j.anplas.2014.09.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 09/25/2014] [Indexed: 12/15/2022]
|
19
|
Abstract
Context: Articular cartilage possesses poor natural healing mechanisms, and a variety of non-cell-based and cell-based treatments aim to promote regeneration of hyaline cartilage. Data Sources: A review of the literature to December 2013 using PubMed with search criteria including the keywords stem cell, cell therapy, cell transplantation, cartilage, chondral, and chondrogenic. Study Selection: Forty-five articles were identified that employed local mesenchymal stem cell (MSC) therapy for joint disorders in humans. Nine comparative studies were identified, consisting of 3 randomized trials, 5 cohort studies, and 1 case-control study. Study Type: Clinical review. Level of Evidence: Level 4. Data Extraction: Studies were assessed for stem cell source, method of implantation, comparison groups, and concurrent surgical techniques. Results: Two studies comparing MSC treatment to autologous chondrocyte implantation found similar efficacy. Three studies reported clinical benefits with intra-articular MSC injection over non-MSC controls for cases undergoing debridement with or without marrow stimulation, although a randomized study found no significant clinical difference at 2-year follow-up but reported better 18-month magnetic resonance imaging and histologic scores in the MSC group. No human studies have compared intra-articular MSC therapy to non-MSC techniques for osteoarthritis in the absence of surgery. Conclusion: Mesenchymal stem cell–based therapies appear safe and effective for joint disorders in large animal preclinical models. Evidence for use in humans, particularly, comparison with more established treatments such as autologous chondrocyte implantation and microfracture, is limited.
Collapse
Affiliation(s)
| | - Daniel Bates
- Lakeside Sports Medicine Centre, Melbourne, Victoria, Australia
| | - Richard Boyd
- Monash Immunology and Stem Cell Laboratories (MISCL), Monash University, Clayton, Victoria, Australia
| | - David A Connell
- Faculty of Medicine, Nursing & Healthcare, Monash University, Clayton, Victoria, Australia
| |
Collapse
|
20
|
Bright R, Bright M, Bright P, Hayne S, Thomas WD. Migraine and tension-type headache treated with stromal vascular fraction: a case series. J Med Case Rep 2014; 8:237. [PMID: 24981130 PMCID: PMC4088303 DOI: 10.1186/1752-1947-8-237] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 05/12/2014] [Indexed: 12/03/2022] Open
Abstract
Introduction Chronic migraines and tension-type headaches are debilitating diseases affecting 1.4 to 2.2% of the population with both quality of life and economic implications. To date, the pain associated with migraine and tension-type headaches has been controlled with a range of medications, with varying levels of success. In addition, the side-effect profile of these medications, as well as their potential for addiction, has been a cause for concern for both patients and physicians. Case presentations Four women with long histories of migraine or frequent tension-type headache that meet the International Classification of Headache Disorders criteria for Chronic Migraine or Tension-type Headaches were given a systemic treatment(s) of autologous stromal vascular fraction or autologous ‘StroMed’ isolated from lipoaspirate. StroMed is stromal vascular fraction cells prepared by ultrasonic cavitation. Two of the four patients, both of whom are Arab women aged 40 and 36 years, ceased having migraines after 1 month, for a period of 12 to 18 months. The third patient, a Slavic woman aged 43 years, had a significant decrease in the frequency and severity of migraines with only seven migraines over 18 months. The fourth patient, an Asian woman aged 44 years, obtained a temporary decrease for a period of a month and was retreated 18 months later and has been free of migraines to date for 1 month. Pain medication was typically reduced from prescribed opioid analgesia to non-steroidal anti-inflammatory drugs and paracetamol. Conclusions This case series is the first to provide evidence of the efficacy of autologous StroMed and stromal vascular fraction in the treatment of migraine and tension-type headache. The treatment of this disease by stromal vascular fraction adds a new dimension to its clinical applicability and suggests a relatively simple treatment that may help address the symptoms of the disease. Given what is known about the components of the stromal vascular fraction and how they act, the information presented in this case series may also further our knowledge of the etiology and pathophysiology of migraine and tension-type headaches. This treatment is simple, looks to be extremely effective and has been life changing for these patients.
Collapse
Affiliation(s)
- Ralph Bright
- Macquarie Stem Cells, 21b Bathurst St, Liverpool, NSW 2170, Australia.
| | | | | | | | | |
Collapse
|
21
|
Age influence on stromal vascular fraction cell yield obtained from human lipoaspirates. Cytotherapy 2014; 16:1092-7. [PMID: 24726656 DOI: 10.1016/j.jcyt.2014.02.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 02/03/2014] [Accepted: 02/16/2014] [Indexed: 01/31/2023]
Abstract
BACKGROUND AIMS The adipose stromal vascular fraction (SVF) is a heterogeneous population of mononuclear cells that includes approximately 1-10% mesenchymal stromal cells. These SVF cells can be freshly obtained from human lipo-aspirates and represent and ideal candidate for regenerative medicine applications. In the present study, we analyzed the SVF yield as a function of the patient's age. METHODS Adipose tissue samples from 52 informed subjects (all women) were processed by means of an innovative point-of-care technology for SVF isolation (GID platform). After enzymatic dissociation of adipose tissue and SVF pellet resuspension, we measured the concentration of mononucleated cells as well as other cell quality analyses on the cell suspension obtained. We then calculated the cell yield as total nucleated cells per milliliter of dry adipose processed. RESULTS The mean SVF yield obtained was 7.19 × 10(5) ± 2.11 × 10(5) total nucleated cells per milliliter of adipose tissue. Our results show that there is a clear statistically significant decline in SVF cell yield with increasing age. CONCLUSIONS Because all samples were obtained from the same donor area and the isolation technique used was the same in all cases, we conclude that the SVF cell yield in women is affected by patient age. Specific age-related factors should be analyzed in the future to explain these results.
Collapse
|
22
|
Mizer JC, Ichim TE, Alexandrescu DT, Dasanu CA, Ramos F, Turner A, Woods EJ, Bogin V, Murphy MP, Koos D, Patel AN. Exogenous endothelial cells as accelerators of hematopoietic reconstitution. J Transl Med 2012; 10:231. [PMID: 23171397 PMCID: PMC3543295 DOI: 10.1186/1479-5876-10-231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Accepted: 10/04/2012] [Indexed: 01/25/2023] Open
Abstract
Despite the successes of recombinant hematopoietic-stimulatory factors at accelerating bone marrow reconstitution and shortening the neutropenic period post-transplantation, significant challenges remain such as cost, inability to reconstitute thrombocytic lineages, and lack of efficacy in conditions such as aplastic anemia. A possible means of accelerating hematopoietic reconstitution would be administration of cells capable of secreting hematopoietic growth factors. Advantages of this approach would include: a) ability to regulate secretion of cytokines based on biological need; b) long term, localized production of growth factors, alleviating need for systemic administration of factors that possess unintended adverse effects; and c) potential to actively repair the hematopoietic stem cell niche. Here we overview the field of hematopoietic growth factors, discuss previous experiences with mesenchymal stem cells (MSC) in accelerating hematopoiesis, and conclude by putting forth the rationale of utilizing exogenous endothelial cells as a novel cellular therapy for acceleration of hematopoietic recovery.
Collapse
|