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Cui Z, Tan Q. Bcl-2 modified adipose-derived stem cells improve the retention of fat graft. Adipocyte 2022; 11:501-509. [PMID: 35975944 PMCID: PMC9387309 DOI: 10.1080/21623945.2022.2107195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In cell-assisted lipotransfer, adipose-derived stem cells play a crucial role in enhancing fat graft retention. In vitro, human adipose-derived stem cells were modified with Bcl-2 gene. In vivo, aspirated fat was mixed with the Bcl-2-modified adipose-derived stem cells and then transplanted subcutaneously into nude mice. The retention of fat graft was evaluated. The surviving Bcl-2-modified adipose-derived stem cells were tracked after transplantation. Capillary density was quantified after transplantation. Transplantation with Bcl-2-modified adipose-derived stem cells enhanced fat graft retention by 49% and 114% at 6 weeks compared with the Fat + vector-modified adipose-derived stem cell group and Fat-only group, respectively. Transplants from the Fat + Bcl-2-modified adipose-derived stem cell group had significantly more intact adipocytes and lower levels of fat necrosis and fibrosis at 6 weeks. The survival of Bcl-2-modified adipose-derived stem cells increased by 33% at 3 weeks and 54% at 6 weeks, respectively, compared with vector-modified adipose-derived stem cells. The capillary density was 24% higher in Fat + Bcl-2-modified adipose-derived stem cell group than in Fat + vector-modified adipose-derived stem cell group or 60% higher than in Fat-only group at 3 weeks.
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Affiliation(s)
- Ziwei Cui
- Department of Aesthetic Surgery, the Daqing Oilfield General Hospital, Daqing, Heilongjiang, China.,Department of Burns and Plastic Surgery, The Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qian Tan
- Department of Burns and Plastic Surgery, The Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Burns and Plastic Surgery, Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu, China
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Small extracellular vesicles of hypoxic endothelial cells regulate the therapeutic potential of adipose-derived mesenchymal stem cells via miR-486-5p/PTEN in a limb ischemia model. J Nanobiotechnology 2022; 20:422. [PMID: 36153544 PMCID: PMC9509557 DOI: 10.1186/s12951-022-01632-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022] Open
Abstract
Background Patients with critical limb ischemia (CLI) are at great risk of major amputation and cardiovascular events. Adipose-derived mesenchymal stem cell (ADSC) therapy is a promising therapeutic strategy for CLI, but the poor engraftment and insufficient angiogenic ability of ADSCs limit their regenerative potential. Herein, we explored the potential of human umbilical vein endothelial cells (HUVECs)-derived small extracellular vesicles (sEVs) for enhancing the therapeutic efficacy of ADSCs in CLI. Results sEVs derived from hypoxic HUVECs enhanced the resistance of ADSCs to reactive oxygen species (ROS) and further improved the proangiogenic ability of ADSCs in vitro. We found that the hypoxic environment altered the composition of sEVs from HUVECs and that hypoxia increased the level of miR-486-5p in sEVs. Compared to normoxic sEVs (nsEVs), hypoxic sEVs (hsEVs) of HUVECs significantly downregulated the phosphatase and tensin homolog (PTEN) via direct targeting of miR-486-5p, therefore activating the AKT/MTOR/HIF-1α pathway and influencing the survival and pro-angiogenesis ability of ADSCs. In a hindlimb ischemia model, we discovered that hsEVs-primed ADSCs exhibited superior cell engraftment, and resulted in better angiogenesis and tissue repair. Conclusion hsEVs could be used as a therapeutic booster to improve the curative potential of ADSCs in a limb ischemia model. This finding offers new insight for CLI treatment. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01632-1.
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Lei Z, Wu H, Xiong Y, Wei D, Wang X, Luoreng Z, Cai X, Ma Y. ncRNAs regulate bovine adipose tissue deposition. Mol Cell Biochem 2021; 476:2837-2845. [PMID: 33730298 DOI: 10.1007/s11010-021-04132-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/06/2021] [Indexed: 12/13/2022]
Abstract
Lipid metabolism, which encompasses synthesis and degradation of lipids, is critical for a wide range of cellular functions, including structural and morphological properties of organelles, energy storage, signalling, and the stability and function of membrane proteins. Adipose tissue is a dynamic tissue type that performs a lot of significant physiological functions, including secretion, and is involved in maintaining homeostasis and in regulatory roles of other tissues based on paracrine or endocrine. More recently, several classes of non-coding RNAs (ncRNAs), such as long non-coding RNA (lncRNA), microRNA (miRNA) and circular RNA (circRNA), have been discovered in adipocytes, and they act as critical regulators of gene expression in adipogenesis and regulate adipogenesis through multiple pathways. In the present paper, we discussed several classes of non-coding RNAs and summarized the latest research on the regulatory role of ncRNAs in bovine adipogenesis. We gave examples for known modes of action to look forward to providing reference information future scientific research in cattle breeding.
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Affiliation(s)
- Zhaoxiong Lei
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Huiguang Wu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Yan Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Southwest Minzu University, Chengdu, China
| | - Dawei Wei
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Xingping Wang
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Zhuoma Luoreng
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Xiaoyan Cai
- School of Agriculture, Ningxia University, YinChuan, China.,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China
| | - Yun Ma
- School of Agriculture, Ningxia University, YinChuan, China. .,Key Laboratory of Ruminant Molecular and Cellular Breeding, Ningxia University, Ningxia Hui Autonomous Region, YinChuan, China. .,College of Life Science, Xinyang Normal University, Xinyang, China.
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Dissanayaka WL, Han Y, Zhang L, Zou T, Zhang C. Bcl-2 Overexpression and Hypoxia Synergistically Enhance Angiogenic Properties of Dental Pulp Stem Cells. Int J Mol Sci 2020; 21:ijms21176159. [PMID: 32859045 PMCID: PMC7503706 DOI: 10.3390/ijms21176159] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/24/2020] [Accepted: 08/24/2020] [Indexed: 12/14/2022] Open
Abstract
Post-implantation cell survival and angio-/vasculogenesis are critical for the success of cell-based regenerative strategies. The current study aimed to overexpress B-cell lymphoma 2 (Bcl-2) gene in dental pulp stem cells (DPSCs) and examine the anti-apoptotic and angio-/vasculogenic effects both in-vitro and in-vivo. DPSCs were transduced with Bcl-2-green fluorescent protein (GFP) lentiviral particles and examined for cell proliferation and apoptosis. The cells were cultured under normoxic or hypoxic (0.5 mM CoCl2) conditions and examined for the expression of angiogenic factors and effects on endothelial cell proliferation, migration and vessel morphogenesis. Cells with or without hypoxic preconditioning were used in in-vivo Matrigel plug assay to study the post-implantation cell survival and angio-/vasculogenesis. Bcl-2-overexpressing-DPSCs showed significantly lower apoptosis than that of null-GFP-DPSCs under serum-free conditions. Under hypoxia, Bcl-2-overexpressing-DPSCs expressed significantly higher levels of vascular endothelial growth factor compared to that under normoxia and null-GFP-DPSCs. Consequently, Bcl-2-overexpressing-DPSCs significantly enhanced endothelial cell proliferation, migration and vascular tube formation on Matrigel. Immunohistological assessment of in-vivo transplanted Matrigel plugs showed significantly higher cell survival and vasculature in hypoxic preconditioned Bcl-2-overexpressing-DPSC group compared to null-GFP-DPSC group. In conclusion, Bcl-2 overexpression and hypoxic-preconditioning could be synergistically used to enhance post-implantation cell survival and angio-/vasculogenic properties of DPSCs.
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Affiliation(s)
- Waruna L. Dissanayaka
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong; (Y.H.); (L.Z.)
- Correspondence: (W.L.D.); (C.Z.); Tel.: +85-228-590-379 (W.L.D.); +85-228-590-371 (C.Z.)
| | - Yuanyuan Han
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong; (Y.H.); (L.Z.)
| | - Lili Zhang
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong; (Y.H.); (L.Z.)
| | - Ting Zou
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong;
| | - Chengfei Zhang
- Restorative Dental Sciences, Faculty of Dentistry, The University of Hong Kong, Hong Kong;
- Correspondence: (W.L.D.); (C.Z.); Tel.: +85-228-590-379 (W.L.D.); +85-228-590-371 (C.Z.)
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Ding S, Xu Y, Yan X, Lin Y, Tan Q. Effect of Collagen Scaffold With Bcl-2-Modified Adipose-Derived Stem Cells on Diabetic Mice Wound Healing. INT J LOW EXTR WOUND 2019; 19:139-147. [PMID: 31680592 DOI: 10.1177/1534734619880055] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study aimed at evaluating the effects of collagen scaffold with Bcl-2-modified adipose-derived stem cells (ADSCs) on wound repair in streptozotocin-induced diabetic mice. A round full thickness skin defect with a diameter of 7 mm was made in the mice model. The experimental mice were divided into 4 groups (n = 12 each): group A (control group), group B (scaffold group), group C (ADSCs-scaffold group), and group D (Bcl-2-ADSCs-scaffold group). On days 3, 7, 10, and 14 after surgery, characteristics of wound healing was observed, and wound tissues were sampled for histology characteristics via hematoxylin-eosin staining and immunohistochemical staining. Compared with other groups, the wound healing rate was significantly higher in group D a week after operation (P < .05). On the seventh day postoperation, group D exhibited higher blood vessel in the wounds granulation tissue than other groups according to results of hematoxylin-eosin staining and immunohistochemistry. In conclusion, these findings demonstrated that collagen scaffold with Bcl-2 modified ADSCs may effectively improve the wound healing process in diabetic mice.
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Affiliation(s)
- Sheng Ding
- Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China.,Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, China
| | - Ye Xu
- Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Xin Yan
- Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Yue Lin
- Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
| | - Qian Tan
- Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China
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Allogeneic Adipose-Derived Mesenchymal Stem Cell Transplantation Enhances the Expression of Angiogenic Factors in a Mouse Acute Hindlimb Ischemic Model. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1083:1-17. [PMID: 28687961 DOI: 10.1007/5584_2017_63] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Cell migration and molecular mechanisms during healing of damaged vascular or muscle tissues are emerging fields of interest worldwide. The study herein focuses on evaluating the role of allogenic adipose-derived mesenchymal stem cells (ADMSCs) in restoring damaged tissues. Using a hindlimb ischemic mouse model, ADMSC-mediated induction of cell migration and gene expression related to myocyte regeneration and angiogenesis were evaluated. ADMSCs were labeled with GFP (ADMSC-GFP). The proximal end of the femoral blood vessel of mice (over 6 months of age) are ligated at two positions then cut between the two ties. Hindlimb ischemic mice were randomly divided into two groups: Group I (n = 30) which was injected with PBS (100 μL) and Group II (n = 30) which was transplanted with ADMSC-GFP (106 cells/100 μL PBS) at the rectus femoris muscle. The migration of ADMSC-GFP in hindlimb was analyzed by UV-Vis system. The expression of genes related to angiogenesis and muscle tissue repair was quantified by real-time RT-PCR. The results showed that ADMSCs existed in the grafted hindlimb for 7 days. Grafted cells migrated to other damaged areas such as thigh and heel. In both groups the ischemic hindlimb showed an increased expression of several angiogenic genes, including Flt-1, Flk-1, and Ang-2. In particular, the expression of Ang-2 and myogenic-related gene MyoD was significantly increased in the ADMSC-treated group compared to the PBS-treated (control) group; the expression increased at day 28 compared to day 3. The other factors, such as VE-Cadherin, HGF, CD31, Myf5, and TGF-β, were also more highly expressed in the ADMSC-treated group than in the control group. Thus, grafted ADMSCs were able to migrate to other areas in the injured hindlimb, persist for approximately 7 days, and have a significantly positive impact on stimulating expression of myogenic- and angiogenesis-related genes.
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Mahmoud M, Abu-Shahba N, Azmy O, El-Badri N. Impact of Diabetes Mellitus on Human Mesenchymal Stromal Cell Biology and Functionality: Implications for Autologous Transplantation. Stem Cell Rev Rep 2019; 15:194-217. [DOI: 10.1007/s12015-018-9869-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Rong SL, Wang XL, Zhang CY, Song ZH, Cui LH, He XF, Li XJ, Du HJ, Li B. Transplantation of HGF gene-engineered skeletal myoblasts improve infarction recovery in a rat myocardial ischemia model. PLoS One 2017; 12:e0175807. [PMID: 28459804 PMCID: PMC5411067 DOI: 10.1371/journal.pone.0175807] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 03/31/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Skeletal myoblast transplantation seems a promising approach for the repair of myocardial infarction (MI). However, the low engraftment efficacy and impaired angiogenic ability limit the clinical efficiency of the myoblasts. Gene engineering with angiogenic growth factors promotes angiogenesis and enhances engraftment of transplanted skeletal myoblasts, leading to improved infarction recovery in myocardial ischemia. The present study evaluated the therapeutic effects of hepatocyte growth factor (HGF) gene-engineered skeletal myoblasts on tissue regeneration and restoration of heart function in a rat MI model. METHODS AND RESULTS The skeletal myoblasts were isolated, expanded, and transduced with adenovirus carrying the HGF gene (Ad-HGF). Male SD rats underwent ligation of the left anterior descending coronary artery. After 2 weeks, the surviving rats were randomized into four groups and treated with skeletal myoblasts by direct injection into the myocardium. The survival and engraftment of skeletal myoblasts were determined by real-time PCR and in situ hybridization. The cardiac function with hemodynamic index and left ventricular architecture were monitored; The adenovirus-mediated-HGF gene transfection increases the HGF expression and promotes the proliferation of skeletal myoblasts in vitro. Transplantation of HGF-engineered skeletal myoblasts results in reduced infarct size and collagen deposition, increased vessel density, and improved cardiac function in a rat MI model. HGF gene modification also increases the myocardial levels of HGF, VEGF, and Bcl-2 and enhances the survival and engraftment of skeletal myoblasts. CONCLUSIONS HGF engineering improves the regenerative effect of skeletal myoblasts on MI by enhancing their survival and engraftment ability.
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Affiliation(s)
- Shu-Ling Rong
- Department of Cardiology, Heping Hospital and Institute of cardiovascular disease, Changzhi Medical College, Changzhi, China
- Department of Cardiology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Xiao-Lin Wang
- Department of Pediatrics, Heping Hospital and Institute of cardiovascular disease, Changzhi Medical College, Changzhi, China
| | - Cui-Ying Zhang
- Department of Physiology, Changzhi Medical College, Changzhi, China
| | - Zhuo-Hui Song
- Department of Physiology, Changzhi Medical College, Changzhi, China
| | - Lu-Hua Cui
- Department of Cardiology, Heping Hospital and Institute of cardiovascular disease, Changzhi Medical College, Changzhi, China
| | - Xiao-Feng He
- Department of Research, Heping Hospital, Changzhi Medical College, Changzhi, China
| | - Xu-Jiong Li
- Department of Physiology, Changzhi Medical College, Changzhi, China
| | - Hui-Jin Du
- Department of Cardiology, Heping Hospital and Institute of cardiovascular disease, Changzhi Medical College, Changzhi, China
| | - Bao Li
- Department of Cardiology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
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Gao JJ, Shi ZY, Xia JF, Inagaki Y, Tang W. Sorafenib-based combined molecule targeting in treatment of hepatocellular carcinoma. World J Gastroenterol 2015; 21:12059-12070. [PMID: 26576091 PMCID: PMC4641124 DOI: 10.3748/wjg.v21.i42.12059] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/28/2015] [Accepted: 09/14/2015] [Indexed: 02/06/2023] Open
Abstract
Sorafenib is the only and standard systematic chemotherapy drug for treatment of advanced hepatocellular carcinoma (HCC) at the current stage. Although sorafenib showed survival benefits in large randomized phase III studies, its clinical benefits remain modest and most often consist of temporary tumor stabilization, indicating that more effective first-line treatment regimens or second-line salvage therapies are required. The molecular pathogenesis of HCC is very complex, involving hyperactivated signal transduction pathways such as RAS/RAF/MEK/ERK and PI3K/AKT/mTOR and aberrant expression of molecules such as receptor tyrosine kinases and histone deacetylases. Simultaneous or sequential abrogation of these critical pathways or the functions of these key molecules involved in angiogenesis, proliferation, and apoptosis may yield major improvements in the management of HCC. In this review, we summarize the emerging sorafenib-based combined molecule targeting for HCC treatment and analyze the rationales of these combinations.
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