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Gareev I, Beylerli O, Ilyasova T, Ahmad A, Shi H, Chekhonin V. Therapeutic application of adipose-derived stromal vascular fraction in myocardial infarction. iScience 2024; 27:109791. [PMID: 38736548 PMCID: PMC11088339 DOI: 10.1016/j.isci.2024.109791] [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] [Indexed: 05/14/2024] Open
Abstract
The insufficiency of natural regeneration processes in higher organisms, including humans, underlies myocardial infarction (MI), which is one of the main causes of disability and mortality in the population of developed countries. The solution to this problem lies in the field of revealing the mechanisms of regeneration and creating on this basis new technologies for stimulating endogenous regenerative processes or replacing lost parts of tissues and organs with transplanted cells. Of great interest is the use of the so-called stromal vascular fraction (SVF), derived from autologous adipose tissue. It is known that the main functions of SVF are angiogenetic, antiapoptotic, antifibrotic, immune regulation, anti-inflammatory, and trophic. This study presents data on the possibility of using SVF, targeted regulation of its properties and reparative potential, as well as the results of research studies on its use for the restoration of damaged ischemic tissue after MI.
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Affiliation(s)
- Ilgiz Gareev
- Bashkir State Medical University, Ufa 450008, Russian Federation
| | - Ozal Beylerli
- Bashkir State Medical University, Ufa 450008, Russian Federation
| | - Tatiana Ilyasova
- Bashkir State Medical University, Ufa 450008, Russian Federation
| | - Aamir Ahmad
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Huaizhang Shi
- Department of Neurosurgery, The First Affiliated Hospital of Harbin Medical University, Harbin 1500, China
| | - Vladimir Chekhonin
- Pirogov Russian National Research Medical University of the Ministry of Healthcare of Russian Federation, Moscow, Russian Federation
- Serbsky Federal Medical Research Centre of Psychiatry and Narcology of the Ministry of Healthcare of Russian Federation, Moscow, Russian Federation
- The National Medical Research Center for Endocrinology, Moscow, Russian Federation
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Kim DJ, Hahn HM, Youn YN, Lee JS, Lee IJ, Lim SH. Adipose Derived Stromal Vascular Fraction and Mesenchymal Stem Cells Improve Angiogenesis in a Rat Hindlimb Ischaemia Model. Eur J Vasc Endovasc Surg 2024; 67:828-837. [PMID: 37995961 DOI: 10.1016/j.ejvs.2023.11.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 10/30/2023] [Accepted: 11/18/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVE This study aimed to investigate the effect of human adipose tissue derived stromal vascular fraction (AD-SVF) and mesenchymal stem cells (AD-MSCs) on blood flow recovery and neovascularisation in a rat hindlimb ischaemia model. METHODS SVF was isolated using an automated centrifugal system, and AD-MSCs were obtained from adherent cultures of SVF cells. Rats were divided into four groups of six rats each: non-ischaemia (Group 1); saline treated ischaemia (Group 2); SVF treated ischaemia (Group 3); and AD-MSC treated ischaemia (Group 4). Unilateral hindlimb ischaemia was induced in Sprague-Dawley rats via femoral artery ligation. Saline, SVF, or AD-MSCs were injected intramuscularly into the adductor muscle intra-operatively. Cell viability was calculated as the percentage of live cells relative to total cell number. Blood flow improvement, muscle fibre injury, and angiogenic properties were validated using thermal imaging and histological assessment. RESULTS The viabilities of SVF and AD-MSCs were 83.3% and 96.7%, respectively. Group 1 exhibited no significant temperature difference between hindlimbs, indicating a lack of blood flow changes. The temperature gradient gradually decreased in SVF and AD-MSC treated rats compared with saline treated rats. In addition, only normal muscle fibres with peripherally located nuclei were observed in Group 1. Groups 3 and 4 exhibited significantly fewer centrally located nuclei, indicating less muscle damage compared with Group 2. Regarding angiogenic properties, CD31 staining of endothelial cells showed similar patterns among all groups, whereas expression of vascular endothelial growth factor, as a crucial angiogenesis factor, was enhanced in the SVF and AD-MSC treated groups. CONCLUSION SVF and AD-MSCs improved blood flow and neovascularisation in a rat hindlimb ischaemia model, suggesting their potential ability to promote angiogenesis. Further extensive research is warranted to explore their potential applications in the treatment of severe lower extremity arterial disease.
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Affiliation(s)
- Do Jung Kim
- Department of Thoracic and Cardiovascular Surgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea; Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyung Min Hahn
- Department of Plastic and Reconstructive Surgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea
| | - Young-Nam Youn
- Department of Thoracic and Cardiovascular Surgery, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Jun Suk Lee
- Department of Plastic and Reconstructive Surgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea
| | - Il Jae Lee
- Department of Plastic and Reconstructive Surgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea
| | - Sang-Hyun Lim
- Department of Thoracic and Cardiovascular Surgery, Ajou University Hospital, Ajou University School of Medicine, Suwon, South Korea.
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Pal P, Medina A, Chowdhury S, Cates CA, Bollavarapu R, Person JM, McIntyre B, Speed JS, Janorkar AV. Influence of the Tissue Collection Procedure on the Adipogenic Differentiation of Human Stem Cells: Ischemic versus Well-Vascularized Adipose Tissue. Biomedicines 2024; 12:997. [PMID: 38790959 PMCID: PMC11117639 DOI: 10.3390/biomedicines12050997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/26/2024] Open
Abstract
Clinical and basic science applications using adipose-derived stem cells (ADSCs) are gaining popularity. The current adipose tissue harvesting procedures introduce nonphysiological conditions, which may affect the overall performance of the isolated ADSCs. In this study, we elucidate the differences between ADSCs isolated from adipose tissues harvested within the first 5 min of the initial surgical incision (well-vascularized, nonpremedicated condition) versus those isolated from adipose tissues subjected to medications and deprived of blood supply during elective free flap procedures (ischemic condition). ADSCs isolated from well-vascularized and ischemic tissues positively immunostained for several standard stem cell markers. Interestingly, the percent change in the CD36 expression for ADSCs isolated from ischemic versus well-vascularized tissue was significantly lower in males than females (p < 0.05). Upon differentiation and maturation to adipocytes, spheroids formed using ADSCs isolated from ischemic adipose tissue had lower triglyceride content compared to those formed using ADSCs isolated from the well-vascularized tissue (p < 0.05). These results indicate that ADSCs isolated from ischemic tissue either fail to uptake fatty acids or fail to efficiently convert those fatty acids into triglycerides. Therefore, more robust ADSCs suitable to establish in vitro adipose tissue models can be obtained by harvesting well-vascularized and nonpremedicated adipose tissues.
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Affiliation(s)
- Pallabi Pal
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Abelardo Medina
- Division of Plastic Surgery, Department of Surgery, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Sheetal Chowdhury
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Courtney A. Cates
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Ratna Bollavarapu
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Jon M. Person
- Cancer Institute, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Benjamin McIntyre
- Division of Plastic Surgery, Department of Surgery, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Joshua S. Speed
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
| | - Amol V. Janorkar
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, 2500 N State Street, Jackson, MS 39216, USA
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Gandolfi S, Pileyre B, Drouot L, Dubus I, Auquit-Auckbur I, Martinet J. Stromal vascular fraction in the treatment of myositis. Cell Death Discov 2023; 9:346. [PMID: 37726262 PMCID: PMC10509179 DOI: 10.1038/s41420-023-01605-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 08/01/2023] [Accepted: 08/14/2023] [Indexed: 09/21/2023] Open
Abstract
Muscle regeneration is a physiological process that converts satellite cells into mature myotubes under the influence of an inflammatory environment progressively replaced by an anti-inflammatory environment, with precise crosstalk between immune and muscular cells. If the succession of these phases is disturbed, the immune system can sometimes become auto-reactive, leading to chronic muscular inflammatory diseases, such as myositis. The triggers of these autoimmune myopathies remain mostly unknown, but the main mechanisms of pathogenesis are partially understood. They involve chronic inflammation, which could be associated with an auto-reactive immune response, and gradually with a decrease in the regenerative capacities of the muscle, leading to its degeneration, fibrosis and vascular architecture deterioration. Immunosuppressive treatments can block the first part of the process, but sometimes muscle remains weakened, or even still deteriorates, due to the exhaustion of its capacities. For patients refractory to immunosuppressive therapies, mesenchymal stem cells have shown interesting effects but their use is limited by their availability. Stromal vascular fraction, which can easily be extracted from adipose tissue, has shown good tolerance and possible therapeutic benefits in several degenerative and autoimmune diseases. However, despite the increasing use of stromal vascular fraction, the therapeutically active components within this heterogeneous cellular product are ill-defined and the mechanisms by which this therapy might be active remain insufficiently understood. We review herein the current knowledge on the mechanisms of action of stromal vascular fraction and hypothesise on how it could potentially respond to some of the unmet treatment needs of refractory myositis.
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Affiliation(s)
- S Gandolfi
- Univ Rouen Normandie, INSERM U1234, FOCIS Center of Excellence PAn'THER, F-76000, Rouen, France
- Toulouse University Hospital, Department of Plastic and Reconstructive Surgery, F-31000, Toulouse, France
| | - B Pileyre
- Univ Rouen Normandie, INSERM U1234, FOCIS Center of Excellence PAn'THER, F-76000, Rouen, France.
- Centre Henri Becquerel, Department of Pharmacy, F-76000, Rouen, France.
| | - L Drouot
- Univ Rouen Normandie, INSERM U1234, FOCIS Center of Excellence PAn'THER, F-76000, Rouen, France
| | - I Dubus
- Univ Rouen Normandie, INSERM U1234, FOCIS Center of Excellence PAn'THER, F-76000, Rouen, France
| | - I Auquit-Auckbur
- Univ Rouen Normandie, INSERM U1234, FOCIS Center of Excellence PAn'THER, CHU Rouen, Department of Plastic, Reconstructive and Hand Surgery, F-76000, Rouen, France
| | - J Martinet
- Univ Rouen Normandie, INSERM U1234, FOCIS Center of Excellence PAn'THER, CHU Rouen, Department of Immunology and Biotherapy, F-76000, Rouen, France
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Dhumale P, Nielsen JV, Hansen ACS, Burton M, Beck HC, Jørgensen MG, Toyserkani NM, Haahr MK, Hansen ST, Lund L, Thomassen M, Sørensen JA, Andersen DC, Jensen CH, Sheikh SP. CD31 defines a subpopulation of human adipose-derived regenerative cells with potent angiogenic effects. Sci Rep 2023; 13:14401. [PMID: 37658225 PMCID: PMC10474028 DOI: 10.1038/s41598-023-41535-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/28/2023] [Indexed: 09/03/2023] Open
Abstract
Cellular heterogeneity represents a major challenge for regenerative treatment using freshly isolated Adipose Derived Regenerative Cells (ADRCs). Emerging data suggest superior efficacy of ADRCs as compared to the ex vivo expanded and more homogeneous ADRCs (= ASCs) for indications involving (micro)vascular deficiency, however, it remains unknown which ADRC cell subtypes account for the improvement. Surprisingly, we found regarding erectile dysfunction (ED) that the number of injected CD31+ ADRCs correlated positively with erectile function 12 months after one bolus of autologous ADRCs. Comprehensive in vitro and ex vivo analyses confirmed superior pro-angiogenic and paracrine effects of human CD31+ enriched ADRCs compared to the corresponding CD31- and parent ADRCs. When CD31+, CD31- and ADRCs were co-cultured in aortic ring- and corpus cavernous tube formation assays, the CD31+ ADRCs induced significantly higher tube development. This effect was corroborated using conditioned medium (CM), while quantitative mass spectrometric analysis suggested that this is likely explained by secretory pro-angiogenic proteins including DKK3, ANGPT2, ANAX2 and VIM, all enriched in CD31+ ADRC CM. Single-cell RNA sequencing showed that transcripts of the upregulated and secreted proteins were present in 9 endothelial ADRC subsets including endothelial progenitor cells in the heterogenous non-cultured ADRCs. Our data suggest that the vascular benefit of using ADRCs in regenerative medicine is dictated by CD31+ ADRCs.
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Affiliation(s)
- Pratibha Dhumale
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Jakob Vennike Nielsen
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | | | - Mark Burton
- Department of Clinical Genetics, OUH, Odense, Denmark
| | - Hans Christian Beck
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Mads Gustaf Jørgensen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Research Unit for Plastic Surgery, Department of Clinical Research, SDU, Odense, Denmark
| | - Navid Mohamadpour Toyserkani
- Department of Plastic Surgery, OUH, Odense, Denmark
- Research Unit for Plastic Surgery, Department of Clinical Research, SDU, Odense, Denmark
| | | | - Sabrina Toft Hansen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Urology, OUH, Odense, Denmark
| | - Lars Lund
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Urology, OUH, Odense, Denmark
| | - Mads Thomassen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Genetics, OUH, Odense, Denmark
| | - Jens Ahm Sørensen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Plastic Surgery, OUH, Odense, Denmark
- Research Unit for Plastic Surgery, Department of Clinical Research, SDU, Odense, Denmark
| | - Ditte Caroline Andersen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Charlotte Harken Jensen
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark
| | - Søren Paludan Sheikh
- Department of Clinical Research, University of Southern Denmark (SDU), Odense, Denmark.
- Department of Clinical Biochemistry, Odense University Hospital (OUH), Odense, Denmark.
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Cheng HY, Anggelia MR, Lin CH, Wei FC. Toward transplantation tolerance with adipose tissue-derived therapeutics. Front Immunol 2023; 14:1111813. [PMID: 37187733 PMCID: PMC10175575 DOI: 10.3389/fimmu.2023.1111813] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/07/2023] [Indexed: 05/17/2023] Open
Abstract
Solid organ and composite tissue allotransplanation have been widely applied to treat end-stage organ failure and massive tissue defects, respectively. Currently there are a lot of research endeavors focusing on induction of transplantation tolerance, to relieve the burden derived from long-term immunosuppressant uptake. The mesenchymal stromal cells (MSCs) have been demonstrated with potent immunomodulatory capacities and applied as promising cellular therapeutics to promote allograft survival and induce tolerance. As a rich source of adult MSCs, adipose tissue provides additional advantages of easy accessibility and good safety profile. In recent years, the stromal vascular fraction (SVF) isolated from adipose tissues following enzymatic or mechanical processing without in vitro culture and expansion has demonstrated immunomodulatory and proangiogenic properties. Furthermore, the secretome of AD-MSCs has been utilized in transplantation field as a potential "cell-free" therapeutics. This article reviews recent studies that employ these adipose-derived therapeutics, including AD-MSCs, SVF, and secretome, in various aspects of organ and tissue allotransplantation. Most reports validate their efficacies in prolonging allograft survival. Specifically, the SVF and secretome have performed well for graft preservation and pretreatment, potentially through their proangiogenic and antioxidative capacities. In contrast, AD-MSCs were suitable for peri-transplantation immunosuppression. The proper combination of AD-MSCs, lymphodepletion and conventional immunosuppressants could consistently induce donor-specific tolerance to vascularized composite allotransplants (VCA). For each type of transplantation, optimizing the choice of therapeutics, timing, dose, and frequency of administration may be required. Future progress in the application of adipose-derived therapeutics to induce transplantation tolerance will be further benefited by continued research into their mechanisms of action and the development of standardized protocols for isolation methodologies, cell culture, and efficacy evaluation.
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Affiliation(s)
- Hui-Yun Cheng
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- *Correspondence: Hui-Yun Cheng,
| | - Madonna Rica Anggelia
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Cheng-Hung Lin
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Fu-Chan Wei
- Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- School of Medicine, Chang Gung University, Taoyuan, Taiwan
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Dong G, Wu H, Hu J, Teng L. Stromal Vascular Fraction Promotes Viability of Co-grafted Axial Skin Flaps in Rats Model. Aesthetic Plast Surg 2022; 46:1950-1963. [PMID: 35794244 DOI: 10.1007/s00266-022-02812-y] [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: 11/25/2021] [Accepted: 01/27/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Stromal vascular fraction (SVF) has been proved in promoting the vascularization of fascial flap through cell differentiation and paracrine effect and can be autologous transplanted without culture after isolation in vitro. We intend to establish a novel co-grafted flap model of rats to investigate the efficacy and mechanism of SVF on flaps and skinsin facilitating angiogenesis and immune regulation. METHOD 60 female Sprague Dawley rats were divided into the SVF group and the control group. A pedicled fascial flap combined with a free skin model was established, and 4×106 CM-DIl labeled SVF cells were transplanted into the fascia flap; the rats were executed on days 1, 2, 3, 7, 10 postoperatively (n = 6). Flow cytometry was carried out to determine the cell proportion and surface marker of SVFs. The therapeutic effects of SVF were evaluated via Doppler blood perfusion imager, flap survival rates, histology, immunohistochemistry and immunofluorescence. The bioinformatic mechanism analysis was achieved by high-throughput RNAseq of mRNA and LncRNA. RESULT Flow cytometry confirmed SVF contains heterogeneous cellular composition, especially hematopoietic cells. Doppler blood perfusion imager showed SVF significantly improved flap survival with higher blood perfusion and survival rates. Immunohistochemistry of CD31 displayed higher level of angiogenesis in SVF-treated group, and CM-DIL-labeled SVF cells could survive and participate in revascularization, and RNA sequencing results revealed SVF promoted wound healing by facilitating intercellular adhesion, cell migration and positive immune response. CONCLUSION SVF could reduce skin flap necrosis and activated neovascularization in rats by facilitating intercellular adhesion, cell migration and regulate positive immune response. LEVEL OF EVIDENCE N/A This journal requires that authors assign a level of evidence to each submission to which Evidence-Based Medicine rankings are applicable. This excludes Review Articles, Book Reviews, and manuscripts that concern Basic Science, Animal Studies, Cadaver Studies, and Experimental Studies. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Affiliation(s)
- Guoxuan Dong
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Badachu Road, Shijingshan District, No. 33, Beijing, 100144, China
| | - Huanhuan Wu
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Badachu Road, Shijingshan District, No. 33, Beijing, 100144, China.
| | - JunLong Hu
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Badachu Road, Shijingshan District, No. 33, Beijing, 100144, China
| | - Li Teng
- Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Badachu Road, Shijingshan District, No. 33, Beijing, 100144, China.
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Zhang HZ, Chae DS, Kim SW. ASC and SVF Cells Synergistically Induce Neovascularization in Ischemic Hindlimb Following Cotransplantation. Int J Mol Sci 2021; 23:ijms23010185. [PMID: 35008610 PMCID: PMC8745515 DOI: 10.3390/ijms23010185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/21/2021] [Accepted: 12/22/2021] [Indexed: 01/29/2023] Open
Abstract
Previously, we reported the angio-vasculogenic properties of human stromal vascular fraction (SVF) and adipose tissue-derived mesenchymal stem cells (ASCs). In this study, we investigated whether the combination of ASCs and SVF cells exhibited synergistic angiogenic properties. We conducted quantitative (q)RT-PCR, Matrigel plug, tube formation assays, and in vivo therapeutic assays using an ischemic hind limb mouse model. Immunohistochemical analysis was also conducted. qRT-PCR results revealed that FGF-2 was highly upregulated in ASCs compared with SVF, while PDGF-b and VEGF-A were highly upregulated in SVF. Conditioned medium from mixed cultures of ASCs and SVF (A+S) cells showed higher Matrigel tube formation and endothelial cell proliferation in vitro. A+S cell transplantation into ischemic mouse hind limbs strongly prevented limb loss and augmented blood perfusion compared with SVF cell transplantation. Transplanted A+S cells also showed high capillary density, cell proliferation, angiogenic cytokines, and anti-apoptotic potential in vivo compared with transplanted SVF. Our data indicate that A+S cell transplantation results in synergistic angiogenic therapeutic effects. Accordingly, A+S cell injection could be an alternative therapeutic strategy for treating ischemic diseases.
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Affiliation(s)
- Hong Zhe Zhang
- Department of Cardiology, College of Medicine, Dong-A University, Busan 49201, Korea;
| | - Dong-Sik Chae
- Department of Orthopedic Surgery, International St. Mary’s Hospital, College of Medicine, Catholic Kwandong University, Incheon 22711, Korea
- Correspondence: (D.-S.C.); (S.-W.K.); Tel.: +82-32-290-3150 (D.-S.C.); +82-32-290-2616 (S.-W.K.); Fax: +82-32-290-3879 (D.-S.C.); +82-32-290-2620 (S.-W.K.)
| | - Sung-Whan Kim
- Department of Medicine, College of Medicine, Catholic Kwandong University, Gangneung 25601, Korea
- Correspondence: (D.-S.C.); (S.-W.K.); Tel.: +82-32-290-3150 (D.-S.C.); +82-32-290-2616 (S.-W.K.); Fax: +82-32-290-3879 (D.-S.C.); +82-32-290-2620 (S.-W.K.)
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Reply: Quality and Quantity-Cultured Human Mononuclear Cells Improve Human Fat Graft Vascularization and Survival in an In Vivo Murine Experimental Model. Plast Reconstr Surg 2021; 148:1059e-1060e. [PMID: 34662326 DOI: 10.1097/prs.0000000000008545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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A randomized, controlled clinical trial of autologous stromal vascular fraction cells transplantation to promote mechanical stretch-induced skin regeneration. Stem Cell Res Ther 2021; 12:243. [PMID: 33858504 PMCID: PMC8048343 DOI: 10.1186/s13287-021-02318-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 03/30/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The regeneration response of the skin to mechanical stretching in vivo has been explored in reconstructive surgery to repair large-scale deformities. The ability of the skin to regenerate limits the reconstructive outcome. Here, we propose an approach in which autologous stromal vascular fraction (SVF) cells and mechanical stretching are combined to overcome this limitation and promote skin regeneration. METHODS This randomized, blinded, placebo-controlled clinical trial screened 22 participants undergoing tissue expansion with exhausted regeneration. Twenty eligible participants received intradermal injections of the SVF or placebo treatments. Follow-ups were conducted at 4, 8, and 12 weeks to assess efficacy and at 2 years to assess safety. The primary endpoint was the expanded skin thickness at 12 weeks. The secondary endpoints included skin thickness at 4 and 8 weeks, the expansion index (EI), and the skin texture score at 12 weeks. RESULTS The skin thickness of the SVF group was significantly higher than that of the control group at both 8 weeks (mean difference 0.78 [95% CI - 1.43 to - 0.11]; p = 0.018) and 12 weeks (0.65 [95% CI - 1.30 to - 0.01]; p = 0.046). In the SVF group, the increase in skin thickness was significant at 4 weeks (0.49 [95% CI - 0.80 to - 0.06]; p = 0.010) to 8 weeks (0.45 [95% CI - 0.92 to 0.02]; p = 0.026) and maintained after 12 weeks, whereas that in the control group was reduced after 8 weeks (0.42 [95% CI - 0.07 to 0.91]; p = 0.037). The SVF group showed greater EI increases than the control group (0.50 [95% CI - 0.00 to 0.99]; p = 0.047). The skin texture scores in the SVF group were greater than those in the control group at 12 weeks. Histologically, SVF-treated expanded skin showed more proliferating cells and blood vessels, and the extracellular matrix volume increased. No severe adverse events occurred. CONCLUSIONS Transplantation of SVF cells can expedite the potency of mechanical stretch-induced skin regeneration and provide clinical reconstruction with plentiful tissue. TRIAL REGISTRATION This trial was registered with the Chinese Clinical Trial Registry, ChiCTR2000039317 (registered 23 October 2020-retrospectively registered).
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Carstens MH, Quintana FJ, Calderwood ST, Sevilla JP, Ríos AB, Rivera CM, Calero DW, Zelaya ML, Garcia N, Bertram KA, Rigdon J, Dos-Anjos S, Correa D. Treatment of chronic diabetic foot ulcers with adipose-derived stromal vascular fraction cell injections: Safety and evidence of efficacy at 1 year. Stem Cells Transl Med 2021; 10:1138-1147. [PMID: 33826245 PMCID: PMC8284780 DOI: 10.1002/sctm.20-0497] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/09/2021] [Accepted: 03/04/2021] [Indexed: 12/31/2022] Open
Abstract
Diabetes affects multiple systems in complex manners. Diabetic foot ulcers (DFUs) are a result of diabetes‐induced microarterial vessel disease and peripheral neuropathy. The presence of arteriosclerosis‐induced macroarterial disease can further complicate DFU pathophysiology. Recent studies suggest that mesenchymal stromal cell therapies can enhance tissue regeneration. This phase I study was designed to determine the safety and explore the efficacy of local injections of autologous adipose‐derived stromal vascular fraction (SVF) cells to treat nonhealing DFUs greater than 3 cm in diameter. Sixty‐three patients with type 2 diabetes with chronic DFU—all amputation candidates—were treated with 30 × 106 SVF cells injected in the ulcer bed and periphery and along the pedal arteries. Patients were seen at 6 and 12 months to evaluate ulcer closure. Doppler ultrasounds were performed in a subset of subjects to determine vascular structural parameters. No intervention‐related serious adverse events were reported. At 6 months, 51 subjects had 100% DFU closure, and 8 subjects had ≥75% closure. Three subjects had early amputations, and one subject died. At 12 months, 50 subjects had 100% DFU healing and 4 subjects had ≥85% healing. Five subjects died between the 6‐ and 12‐month follow‐up visits. No deaths were intervention related. Doppler studies in 11 subjects revealed increases in peak systolic velocity and pulsatility index in 33 of 33 arteries, consistent with enhanced distal arterial runoff. These results indicate that SVF can be safely used to treat chronic DFU, with evidence of efficacy (wound healing) and mechanisms of action that include vascular repair and/or angiogenesis.
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Affiliation(s)
- Michael H Carstens
- Wake Forest Institute of Regenerative Medicine, Wake Forest University, Winston-Salem, North Carolina, USA.,Department of Surgery, Universidad Nacional de Nicaragua, León, Nicaragua
| | | | - Santos T Calderwood
- Department of Surgery, Universidad Nacional de Nicaragua, Matagalpa, Nicaragua
| | - Juan P Sevilla
- Department of Surgery, Universidad Nacional de Nicaragua, Matagalpa, Nicaragua
| | - Arlen B Ríos
- Department of Surgery, Universidad Nacional de Nicaragua, Matagalpa, Nicaragua
| | - Carlos M Rivera
- Department of Radiology, Universidad Nacional de Nicaragua, Matagalpa, Nicaragua
| | - Dorian W Calero
- Department of Radiology, Universidad Nacional de Nicaragua, León, Nicaragua
| | - María L Zelaya
- Department of Radiology, Universidad Nacional de Nicaragua, León, Nicaragua
| | - Nelson Garcia
- Department of Medicine, Universidad Nacional de Nicaragua, Matagalpa, Nicaragua
| | - Kenneth A Bertram
- Wake Forest Institute of Regenerative Medicine, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Joseph Rigdon
- Department of Biostatistics and Data Science, School of Medicine, Wake Forest University, Winston-Salem, North Carolina, USA
| | | | - Diego Correa
- Diabetes Research Institute and Cellular Transplant Center, UHealth Sports Medicine Institute, Miller School of Medicine, University of Miami, Miami, Florida, USA.,Department of Orthopedics, UHealth Sports Medicine Institute, Miller School of Medicine, University of Miami, Miami, Florida, USA
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12
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Current Status of Angiogenic Cell Therapy and Related Strategies Applied in Critical Limb Ischemia. Int J Mol Sci 2021; 22:ijms22052335. [PMID: 33652743 PMCID: PMC7956816 DOI: 10.3390/ijms22052335] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/20/2021] [Accepted: 02/23/2021] [Indexed: 02/06/2023] Open
Abstract
Critical limb ischemia (CLI) constitutes the most severe form of peripheral arterial disease (PAD), it is characterized by progressive blockade of arterial vessels, commonly correlated to atherosclerosis. Currently, revascularization strategies (bypass grafting, angioplasty) remain the first option for CLI patients, although less than 45% of them are eligible for surgical intervention mainly due to associated comorbidities. Moreover, patients usually require amputation in the short-term. Angiogenic cell therapy has arisen as a promising alternative for these "no-option" patients, with many studies demonstrating the potential of stem cells to enhance revascularization by promoting vessel formation and blood flow recovery in ischemic tissues. Herein, we provide an overview of studies focused on the use of angiogenic cell therapies in CLI in the last years, from approaches testing different cell types in animal/pre-clinical models of CLI, to the clinical trials currently under evaluation. Furthermore, recent alternatives related to stem cell therapies such as the use of secretomes, exosomes, or even microRNA, will be also described.
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13
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Andia I, Maffulli N, Burgos-Alonso N. Stromal vascular fraction technologies and clinical applications. Expert Opin Biol Ther 2019; 19:1289-1305. [PMID: 31544555 DOI: 10.1080/14712598.2019.1671970] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Introduction: The heterogeneous pool of cells found in the stromal vascular fraction of adipose tissue (SVF) and the purified mesenchymal stromal/stem cells (ASCs) isolated from this pool have increasingly been used as therapeutic tools in regenerative medicine.Areas covered: As SVF and ASCs are different, and should be used in different manners according to various clinical and biological indications, we reviewed the current literature, and focused on the clinical use of SVF to appraise the main medical fields for development. Both enzymatic digestion and mechanical disruption have been used to obtain SVF for non-homologous use. The safety and/or benefits of SVF have been examined in 71 clinical studies in various contexts, mainly musculoskeletal conditions, wound healing, urogenital, and cardiovascular and respiratory diseases. The use of SVF as a therapy remains experimental, with few clinical trials.Expert opinion: SVF provides a cellular and molecular microenvironment for regulation of ASC' activities under different clinical conditions. SVF may enhance angiogenesis and neovascularization in wound healing, urogenital and cardiovascular diseases. In joint conditions, therapeutic benefits may rely on paracrine immune-modulatory and anti-inflammatory mechanisms. Novel point of care methods are emerging to refine SVF in ways that meet the regulatory requirements for minimal manipulation.
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Affiliation(s)
- Isabel Andia
- Regenerative Medicine Laboratory, BioCruces Bizkaia Health Research Institute, Cruces University Hospital, Barakaldo, Spain
| | - Nicola Maffulli
- Department of Musculoskeletal Disorders, University of Salerno School of Medicine and Dentistry, Salerno, Italy.,Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Natalia Burgos-Alonso
- Preventive Medicine and Public Health Department, University of the Basque Country, Faculty of Medicine and Odontology, UPV/EHU, Leioa, Bizkaia, Spain
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Choi JS, Chae DS, Ryu HA, Kim SW. Transplantation of human adipose tissue derived-SVF enhance liver function through high anti-inflammatory property. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:158526. [PMID: 31520775 DOI: 10.1016/j.bbalip.2019.158526] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 08/31/2019] [Accepted: 09/08/2019] [Indexed: 10/26/2022]
Abstract
Although human adipose tissue-derived stromal vascular fraction (SVF) has been considered a promising source of stem cells, its characteristics relevant to treatment of a damaged liver have not been fully elucidated. In the present study, we sought to characterize the property of human SVF and determine the therapeutic utility of SVF in the liver cirrhosis model. We performed microarray, quantitative (q)-PCR experiments, and in vivo therapeutic assays using a liver cirrhotic mouse model. q-PCR results revealed that hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF)-A, Interleukin (IL)-10 and microRNA (miR)-146 were more highly upregulated in SVF than in human adipose-derived mesenchymal stem cells (ASCs). The SVF culture medium (CM) inhibited the activation of hepatic stellate cells in vitro. Injection of SVF significantly suppressed TAA-induced liver fibrosis and repaired liver function by inhibition of infiltrating inflammatory cells and induction of capillary/hepatocyte regeneration in vivo. Injection of IL-10 siRNA treated SVF cells decreased anti-inflammation and anti-fibrotic effects in TAA-induced mice liver. Our data indicate that SVF show a high anti-inflammatory property for treating fibrotic liver diseases through IL-10 secretion. Therefore, SVF might be a novel therapeutic alternative for the treatment of liver cirrhosis in clinical settings.
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Affiliation(s)
- Ja Sung Choi
- Department of Internal Medicine, Catholic Kwandong University College of Medicine, International St. Mary's Hospital, Incheon, Republic of Korea
| | - Dong-Sik Chae
- Department of Orthopedic Surgery, Catholic Kwandong University College of Medicine, International St. Mary's Hospital, Incheon, Republic of Korea
| | - Hyun Aae Ryu
- Department of Medicine, College of Medicine, Catholic Kwandong University, Gangneung, Republic of Korea
| | - Sung-Whan Kim
- Department of Medicine, College of Medicine, Catholic Kwandong University, Gangneung, Republic of Korea.
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15
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Shanbhag S, Suliman S, Pandis N, Stavropoulos A, Sanz M, Mustafa K. Cell therapy for orofacial bone regeneration: A systematic review and meta-analysis. J Clin Periodontol 2019; 46 Suppl 21:162-182. [DOI: 10.1111/jcpe.13049] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/17/2018] [Accepted: 10/26/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Siddharth Shanbhag
- Department of Clinical Dentistry; Center for Clinical Dental Research; University of Bergen; Bergen Norway
| | - Salwa Suliman
- Department of Clinical Dentistry; Center for Clinical Dental Research; University of Bergen; Bergen Norway
| | - Nikolaos Pandis
- Department of Orthodontics and Dentofacial Orthopedics; University of Bern; Bern Switzerland
| | - Andreas Stavropoulos
- Department of Periodontology; Faculty of Odontology; Malmö University; Malmö Sweden
| | - Mariano Sanz
- Section of Periodontology; Faculty of Odontology; University Complutense of Madrid; Madrid Spain
| | - Kamal Mustafa
- Department of Clinical Dentistry; Center for Clinical Dental Research; University of Bergen; Bergen Norway
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16
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Moon KC, Chung HY, Han SK, Jeong SH, Dhong ES. Possibility of Injecting Adipose-Derived Stromal Vascular Fraction Cells to Accelerate Microcirculation in Ischemic Diabetic Feet: A Pilot Study. Int J Stem Cells 2019; 12:107-113. [PMID: 30836733 PMCID: PMC6457712 DOI: 10.15283/ijsc18101] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/04/2019] [Accepted: 01/14/2019] [Indexed: 12/25/2022] Open
Abstract
Background and Objectives Beneficial effects of human adipose-derived stromal vascular fraction (SVF) cell injection on microcirculation have been recently reported in in vitro and in vivo studies. However, no clinical studies have reported its effect in diabetic patients who commonly experience compromised tissue perfusion, regardless of the status of intravascular blood flow. The present piloting study was designed to clinically examine the possibility of SVF cell injection to accelerate microcirculation, particularly in ischemic diabetic feet. Methods Ten diabetic feet were included to receive subcutaneous injection of SVF cells around wounds. Transcutaneous partial oxygen pressure (TcPO2) and cutaneous microvascular blood flow were measured before and every four weeks after cell injection until the 12th week visit. Results TcPO2 values increased from 31.3±7.4 before injection to 46.4±8.2 mmHg at 12 weeks after SVF injection (1.5-fold, p<0.05). Cutaneous microvascular blood flow levels increased from 34.0±21.1 before injection to 76.1±32.5 perfusion unit at 12 weeks after SVF injection (2.2-fold, p<0.05). There were no adverse events related to SVF cell injection. Conclusions Results of this study demonstrate that adipose-derived SVF cell injection have the possibility to provide beneficial effects on microcirculation in ischemic diabetic feet.
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Affiliation(s)
- Kyung-Chul Moon
- Department of Plastic Surgery, Korea University Guro Hospital, Seoul, Korea
| | - Ha-Yoon Chung
- Department of Plastic Surgery, Korea University Guro Hospital, Seoul, Korea
| | - Seung-Kyu Han
- Department of Plastic Surgery, Korea University Guro Hospital, Seoul, Korea
| | - Seong-Ho Jeong
- Department of Plastic Surgery, Korea University Guro Hospital, Seoul, Korea
| | - Eun-Sang Dhong
- Department of Plastic Surgery, Korea University Guro Hospital, Seoul, Korea
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17
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Zakhari JS, Zabonick J, Gettler B, Williams SK. Vasculogenic and angiogenic potential of adipose stromal vascular fraction cell populations in vitro. In Vitro Cell Dev Biol Anim 2017; 54:32-40. [PMID: 29197029 PMCID: PMC5760587 DOI: 10.1007/s11626-017-0213-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/17/2017] [Indexed: 01/22/2023]
Abstract
Adipose-derived stromal vascular fraction (SVF) is a heterogeneous cell source that contains endothelial cells, pericytes, smooth muscle cells, stem cells, and other accessory immune and stromal cells. The SVF cell population has been shown to support vasculogenesis in vitro as well vascular maturation in vivo. Matrigel, an extracellular matrix (ECM) mixture has been utilized in vitro to evaluate tube formation of purified endothelial cell systems. We have developed an in vitro system that utilizes freshly isolated SVF and ECM molecules both in pure form (fibrin, laminin, collagen) as well as premixed form (Matrigel) to evaluate endothelial tip cell formation, endothelial stalk elongation, and early stages of branching and inosculation. Freshly isolated SVF rat demonstrate cell aggregation and clustering (presumptive vasculogenesis) on Matrigel ECM within the first 36 h of seeding followed by tip cell formation, stalk cell formation, branching, and inosculation (presumptive angiogenesis) during the subsequent 4 days of culture. Purified ECM molecules (laminin, fibrin, and collagen) promote cell proliferation but do not recapitulate events seen on Matrigel. We have created an in vitro system that provides a functional assay to study the mechanisms of vasculogenesis and angiogenesis in freshly isolated SVF to characterize SVF’s blood vessel forming potential prior to clinical implantation.
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Affiliation(s)
- Joseph S Zakhari
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Jacob Zabonick
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Brian Gettler
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Stuart K Williams
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA.
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Hao X, Li Q, Guo J, Ren X, Feng Y, Shi C, Zhang W. Multifunctional Gene Carriers with Enhanced Specific Penetration and Nucleus Accumulation to Promote Neovascularization of HUVECs in Vivo. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35613-35627. [PMID: 28948764 DOI: 10.1021/acsami.7b11615] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recently, gene therapy has attracted much attention, especially for the treatment of vascular disease. However, it is still challenging to develop the gene carriers with high biocompatibility as well as highly efficient gene delivery to overcome multiple barriers. Herein, a frequently used cell-penetrating peptide PKKKRKV (TAT) was selected as a functional sequence of the gene carrier with distinctive cell-penetrating ability. REDV peptide with selectively targeting function for endothelial cells (ECs) and nuclear localization signals (NLS) were integrated with this TAT peptide to obtain a highly efficient gene delivery system with ECs specificity and nucleus accumulation capacity. Besides, the glycine sequences with different repeat numbers were inserted into the above integrated peptide. These glycine sequences acted as a flexible spacer arm to exert the targeting, cell-penetrating, and nucleus accumulation functions of each functional peptide. Three tandem peptides REDV-Gm-TAT-Gm-NLS (m = 0, 1, and 4) complexed with pZNF580 plasmid to form gene complexes. The results of hemocompatibility and cytocompatibility indicated that these peptides and gene complexes were nontoxic and biocompatible. The internalization efficiency and mechanism of these gene complexes were investigated. The internalization efficiency was improved as the introduction of targeting REDV and glycine sequence, and the REDV-G4-TAT-G4-NLS/pZNF580 (TP-G4/pZNF580) complexes showed the highest cellular uptake among the gene complexes. The TP-G4/pZNF580 complexes also presented significantly higher internalization efficiency (∼1.36 times) in human umbilical vein endothelial cells (HUVECs) than human umbilical artery smooth muscle cells. TP-G4/pZNF580 complexes substantially promoted the expression of pZNF580 by confocal live cell imaging, gene delivery efficiency, and HUVECs migration assay. The in vitro and in vivo revascularization ability of transfected HUVECs was further enhanced obviously. In conclusion, these multifunctional REDV-Gm-TAT-Gm-NLS peptides offer a promising and efficacious delivery option for neovascularization to treat vascular diseases.
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Affiliation(s)
- Xuefang Hao
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
| | - Qian Li
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
| | - Jintang Guo
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering , Tianjin 300350, China
| | - Xiangkui Ren
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering , Tianjin 300350, China
| | - Yakai Feng
- School of Chemical Engineering and Technology, Tianjin University , Yaguan Road 135, Tianjin 300350, China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering , Tianjin 300350, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University , Tianjin 300072, China
| | - Changcan Shi
- School of Ophthalmology & Optometry, Eye Hospital, School of Biomedical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325011, China
- Wenzhou Institute of Biomaterials and Engineering, CNITECH, CAS , Wenzhou, Zhejiang 325011, China
| | - Wencheng Zhang
- Department of Physiology and Pathophysiology, Logistics University of Chinese People's Armed Police Force , Tianjin 300309, China
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