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Yuan Y, Zhang X, Zhan Y, Tang S, Deng P, Wang Z, Li J. Adipose-derived stromal/stem cells are verified to be potential seed candidates for bio-root regeneration in three-dimensional culture. Stem Cell Res Ther 2022; 13:234. [PMID: 35659736 PMCID: PMC9166419 DOI: 10.1186/s13287-022-02907-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/29/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Bio-root regeneration is a promising treatment for tooth loss. It has been reported that dental-derived stem cells are effective seed cells for bio-root construction, but further applications are limited by their few sources. Human adipose tissues have a wide range of sources and numerous studies have confirmed the ability of adipose-derived stromal/stem cells (ASCs) in regenerative medicine. In the current study, the odontogenic capacities of ASCs were compared with dental-derived stem cells including dental follicle cells (DFCs), and stem cells from human exfoliated deciduous teeth (SHEDs). METHODS The biological characteristics of ASCs, DFCs, and SHEDs were explored in vitro. Two-dimensional (2D) and three-dimensional (3D) cultures were compared in vitro. Odontogenic characteristics of porcine-treated dentin matrix (pTDM) induced cells under a 3D microenvironment in vitro were compared. The complexes (cell/pTDM) were transplanted subcutaneously into nude mice to verify regenerative potential. RNA sequencing (RNA-seq) was used to explore molecular mechanisms of different seed cells in bio-root regeneration. RESULTS 3D culture was more efficient in constructing bio-root complexes. ASCs exhibited good biological characteristics similar to dental-derived stem cells in vitro. Besides, pTDM induced ASCs presented odontogenic ability similar to dental-derived stem cells. Furthermore, 3D cultured ASCs/pTDM complex promoted regeneration of dentin-like, pulp-like, and periodontal fiber-like tissues in vivo. Analysis indicated that PI3K-Akt, VEGF signaling pathways may play key roles in the process of inducing ASCs odontogenic differentiation by pTDM. CONCLUSIONS ASCs are potential seed cells for pTDM-induced bio-root regeneration, providing a basis for further research and application.
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Affiliation(s)
- Yu Yuan
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China
| | - Xiaonan Zhang
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China
| | - Yuzhen Zhan
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China
| | - Song Tang
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China
| | - Pingmeng Deng
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China
| | - Zhenxiang Wang
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China
| | - Jie Li
- College of Stomatology, Chongqing Medical University, 426# Songshibei Road, Yubei District, Chongqing, 401147, People's Republic of China.
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, People's Republic of China.
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, People's Republic of China.
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He C, Dai M, Zhou X, Long J, Tian W, Yu M. Comparison of two cell-free therapeutics derived from adipose tissue: small extracellular vesicles versus conditioned medium. Stem Cell Res Ther 2022; 13:86. [PMID: 35241142 PMCID: PMC8895642 DOI: 10.1186/s13287-022-02757-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/26/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Cell-free therapy has been inspired as a promising approach to overcome the limitations of traditional stem cell therapy. However, the therapeutic effect between extracellular vesicles and conditioned medium with the same source had not been compared. Our previous studies have shown that both the conditioned medium of adipose tissue (adipose tissue extract, ATE) and its further purification product small extracellular vesicles (sEV-AT) contributed to adipose tissue regeneration. In this study, we aimed to compare the ATE and sEV-AT in composition, inductivity on cells and de novo adipose regenerative potential. METHODS The characteristics of sEV-AT and ATE were compared through protein and particle yield, particle size distribution and composition. The inductivity of sEV-AT and ATE on cells were compared through co-culture of sEV-AT or ATE with ASC, HUVEC and RAW264.7 in vitro. The capacity of promoting de novo adipogenesis was compared by implanting the silicone tube containing sEV-AT or ATE subcutaneously in vivo. RESULTS More particles and concentrated particle size distribution were detected in sEV-AT. In turn, more soluble factors and multiple peaks in particle size distribution were detected in ATE. In 1662 common proteins of sEV-AT and ATE, there were 984 (59.2%) proteins enriched twice more in sEV-AT than in ATE. With the prerequisite of equivalent protein concentration, sEV-AT outperformed ATE in promoting proliferation, migration and regeneration potential of cells those contributing adipose tissue regeneration in vitro. Furthermore, sEV-AT expedited the de novo adipose tissue regeneration and angiogenesis at the early stage than ATE in vivo, but sEV-AT and ATE group formed similar neoadipose tissue and new vessels at week 12. CONCLUSIONS Our results provided a direct comparison between EV and conditioned medium as cell-free therapeutic strategy. Both sEV and ATE had specific biological signature to facilitate tissue repair. Considering the convenience of extraction and acceptable effect, ATE represented a feasible product of cell-free therapy, providing another option for different situations in clinical application. Furthermore, the complex contents of both sEV-AT and ATE should be studied comprehensively to avoid possible negative effects and to ensure sufficient safety for clinical applications.
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Affiliation(s)
- Chuan He
- State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, China.,Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Minjia Dai
- State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, China.,Department of Stomatology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiaojie Zhou
- State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, China.,Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie Long
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - Weidong Tian
- State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, China.,Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mei Yu
- State Key Laboratory of Oral Disease and National Clinical Research Center for Oral Diseases and National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, China. .,Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, China.
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Nie JY, Zhu YZ, Wang JW, Hu X, Wang ZH, Wu S, Yi YY. Preparing Adipogenic Hydrogel with Neo-Mechanical Isolated Adipose-Derived Extracellular Vesicles for Adipose Tissue Engineering. Plast Reconstr Surg 2021; 148:212e-222e. [PMID: 34153018 DOI: 10.1097/prs.0000000000008186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Subcutaneous transplantation of decellularized adipose tissue was capable of recellularization during soft tissue repair. However, further improvements are required to promote angiogenesis and adipogenesis. Here, the authors proposed a neo-mechanical protocol to isolate adipose tissue-derived extracellular vesicles (ATEVs) through lipoaspirate as a mediator for both angiogenesis and adipogenesis, and prepared ATEV-rich decellularized adipose tissue hydrogel for adipose tissue engineering. METHODS Adipose liquid extract and lipid-devoid adipose tissue were extracted through homogenization and repeated freeze and thaw cycles. ATEVs were isolated from adipose liquid extract by ultracentrifugation. Decellularized adipose tissue hydrogel was prepared by optimized decellularization of lipid-devoid adipose tissue. The optimum dose of ATEVs for angiogenesis and adipogenesis was estimated by co-culturing with vascular endothelial cells and 3T3-L1 cells, then mixed with the hydrogel. ATEV-enriched hydrogel was injected subcutaneously into the back of severe combined immunodeficiency mice, and then subjected to supplementary injection of ATEVs on postoperative day 14. ATEV-free decellularized adipose tissue hydrogel was injected as control. The newly formed tissue samples were harvested at postoperative weeks 2, 4, and 8 and subjected to volume measurement, hematoxylin and eosin staining, and immunofluorescence (CD31 and perilipin) staining. RESULTS The optimum dose of ATEVs for promoting angiogenesis and adipogenesis was 50 μg/ml. The newly formed tissue mediated by ATEV-enriched hydrogel had increased volume well as improved angiogenesis and adipogenesis at postoperative week 4 and 8. CONCLUSION ATEV-enriched adipogenic hydrogel promotes enhanced angiogenesis and adipogenesis and could serve as a promising biomaterial for adipose tissue engineering.
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Affiliation(s)
- Jia-Ying Nie
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
| | - Yuan-Zheng Zhu
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
| | - Jiang-Wen Wang
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
| | - Xuan Hu
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
| | - Zhao-Hui Wang
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
| | - Shu Wu
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
| | - Yang-Yan Yi
- From the Department of Plastic Surgery, The Second Affiliated Hospital of Nanchang University
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Zhang Y, Yu M, Dong J, Wu Y, Tian W. Identification of Novel Adipokines through Proteomic Profiling of Small Extracellular Vesicles Derived from Adipose Tissue. J Proteome Res 2020; 19:3130-3142. [PMID: 32597661 DOI: 10.1021/acs.jproteome.0c00131] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Adipose tissue is regarded as a true endocrine organ that releases adipokines to regulate distant targets. Besides the well-studied secretory adipokines, the adipokines carried by small extracellular vesicles derived from adipose tissue (sEV-AT) have not been completely characterized yet. In this study, we conducted a complementary protein profiling on sEV-AT with label-free quantitative proteomic analysis (project accession: PXD013270). A total of 2607 sEV-AT proteins were identified, among which 328 proteins had been annotated as adipokines. Three undefined adipokine candidates (NPM3, STEAP3, and DAD1) were selected for further validation. These three proteins were expressed in both white and brown adipose tissues and upregulated during adipogenic differentiation in both 3T3-L1 cells and adipose-derived stromal/stem cells (ASCs). Expressions of NPM3 and DAD1 in sEV-AT were significantly decreased in obese subjects compared with lean controls, while obesity could not alter the expression of STEAP3. Our profiling study of the sEV-AT proteins expanded the list of adipokines and highlighted the pivotal role of adipokines specifically carried by sEVs in the regulation of multiple biological processes within adipose tissue.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory of Oral Disease, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Mei Yu
- State Key Laboratory of Oral Disease, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Jia Dong
- State Key Laboratory of Oral Disease, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yue Wu
- State Key Laboratory of Oral Disease, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, Xiangya School of Stomatology, Central South University, Changsha 410083, China
| | - Weidong Tian
- State Key Laboratory of Oral Disease, Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Zhong YC, Wang SC, Han YH, Wen Y. Recent Advance in Source, Property, Differentiation, and Applications of Infrapatellar Fat Pad Adipose-Derived Stem Cells. Stem Cells Int 2020; 2020:2560174. [PMID: 32215015 PMCID: PMC7081037 DOI: 10.1155/2020/2560174] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/12/2020] [Accepted: 02/20/2020] [Indexed: 12/18/2022] Open
Abstract
Infrapatellar fat pad (IPFP) can be easily obtained during knee surgery, which avoids the damage to patients for obtaining IPFP. Infrapatellar fat pad adipose-derived stem cells (IPFP-ASCs) are also called infrapatellar fat pad mesenchymal stem cells (IPFP-MSCs) because the morphology of IPFP-ASCs is similar to that of bone marrow mesenchymal stem cells (BM-MSCs). IPFP-ASCs are attracting more and more attention due to their characteristics suitable to regenerative medicine such as strong proliferation and differentiation, anti-inflammation, antiaging, secreting cytokines, multipotential capacity, and 3D culture. IPFP-ASCs can repair articular cartilage and relieve the pain caused by osteoarthritis, so most of IPFP-related review articles focus on osteoarthritis. This article reviews the anatomy and function of IPFP, as well as the discovery, amplification, multipotential capacity, and application of IPFP-ASCs in order to explain why IPFP-ASC is a superior stem cell source in regenerative medicine.
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Affiliation(s)
- Yu-chen Zhong
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
- Class 4, Phase 102, China Medical University, Shenyang 110122, China
| | - Shi-chun Wang
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
- Class 4, Phase 102, China Medical University, Shenyang 110122, China
| | - Yin-he Han
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
| | - Yu Wen
- Department of Histology and Embryology, College of Basic Medical Sciences, China Medical University, Shenyang 110122, China
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Yu Q, Wang D, Wen X, Tang X, Qi D, He J, Zhao Y, Deng W, Zhu T. Adipose-derived exosomes protect the pulmonary endothelial barrier in ventilator-induced lung injury by inhibiting the TRPV4/Ca 2+ signaling pathway. Am J Physiol Lung Cell Mol Physiol 2020; 318:L723-L741. [PMID: 32073873 PMCID: PMC7191475 DOI: 10.1152/ajplung.00255.2019] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Mechanical ventilation (MV) is the main supportive treatment of acute respiratory distress syndrome (ARDS), but it may lead to ventilator-induced lung injury (VILI). Large epidemiological studies have found that obesity was associated with lower mortality in mechanically ventilated patients with acute lung injury, which is known as “obesity paradox.” However, the effects of obesity on VILI are unknown. In the present study, wild-type mice were fed a high-fat diet (HFD) and ventilated with high tidal volume to investigate the effects of obesity on VILI in vivo, and pulmonary microvascular endothelial cells (PMVECs) were subjected to 18% cyclic stretching (CS) to further investigate its underlying mechanism in vitro. We found that HFD protects mice from VILI by alleviating the pulmonary endothelial barrier injury and inflammatory responses in mice. Adipose-derived exosomes can regulate distant tissues as novel adipokines, providing a new mechanism for cell-cell interactions. We extracted three adipose-derived exosomes, including HFD mouse serum exosome (S-Exo), adipose tissue exosome (AT-Exo), and adipose-derived stem cell exosome (ADSC-Exo), and further explored their effects on MV or 18% CS-induced VILI in vivo and in vitro. Administration of three exosomes protected against VILI by suppressing pulmonary endothelial barrier hyperpermeability, repairing the expression of adherens junctions, and alleviating inflammatory response in vivo and in vitro, accompanied by transient receptor potential vanilloid 4 (TRPV4)/Ca2+ pathway inhibition. Collectively, these data indicated that HFD-induced obesity plays a protective role in VILI by alleviating the pulmonary endothelial barrier injury and inflammatory response via adipose-derived exosomes, at least partially, through inhibiting the TRPV4/Ca2+ pathway.
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Affiliation(s)
- Qian Yu
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Daoxin Wang
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoting Wen
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xumao Tang
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Di Qi
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing He
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yan Zhao
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wang Deng
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tao Zhu
- Department of Respiratory Medicine, Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Haylett WL, Ferris WF. Adipocyte-progenitor cell communication that influences adipogenesis. Cell Mol Life Sci 2020; 77:115-128. [PMID: 31352534 PMCID: PMC11104918 DOI: 10.1007/s00018-019-03256-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/05/2019] [Accepted: 07/24/2019] [Indexed: 12/12/2022]
Abstract
Adipose tissue is located in discrete depots that are differentially associated with elevated risk of metabolic complications, with fat accretion in visceral depots being most detrimental to metabolic health. Currently, the regulation of specific adipose depot expansion, by adipocyte hypertrophy and hyperplasia and consequently fat distribution, is not well understood. However, a growing body of evidence from in vitro investigations indicates that mature adipocytes secrete factors that modulate the proliferation and differentiation of progenitor, adipose-derived stem cells (ADSCs). It is therefore plausible that endocrine communication between adipocytes and ADSCs located in different depots influences fat distribution, and may therefore contribute to the adverse health outcomes associated with visceral adiposity. This review will explore the available evidence of paracrine and endocrine crosstalk between mature adipocytes and ADSCs that affects adipogenesis, as a better understanding of the regulatory roles of the extracellular signalling mechanisms within- and between adipose depots may profoundly change the way we view adipose tissue growth in obesity and related comorbidities.
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Affiliation(s)
- William Lloyd Haylett
- Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - William Frank Ferris
- Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
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Zhang Y, Yu M, Zhao X, Dai M, Chen C, Tian W. Optimizing adipose tissue extract isolation with stirred suspension culture. Connect Tissue Res 2019; 60:178-188. [PMID: 29852798 DOI: 10.1080/03008207.2018.1483357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Adherent culture which is used to collect adipose tissue extract (ATE) previously brings the problem of inhomogeneity and non-repeatability. Here we aim to extract ATE with stirred suspension culture to speed up the extraction process, stabilize the yield, and improve consistent potency metrics of ATE. MATERIALS AND METHODS ATE was collected with adherent culture (ATE-A) and stirred suspension culture (ATE-S) separately. Protein yield and composition were detected by SDS-PAGE, while cytokines in ATE were determined with ELISA. The adipogenic and angiogenic potential of ATE were compared by western blot and qPCR. In addition, haematoxylin and eosin staining and lactate dehydrogenase (LDH) activity assays were used to analyze the cell viability of adipose tissue cultured with different methods. RESULTS The yield of ATE-S was consistent while ATE-A varied notably. Characterization of the protein composition and exosome-like vesicles (ELVs) indicated no significant difference between ATE-S and ATE-A. The concentrations of cytokines (VEGF, bFGF, and IL-6) showed no significant difference, while IGF in ATE-S was higher than that in ATE-A. ATE-S showed upregulated adipogenic and angiogenic potential compared to ATE-A. Morever, stirred suspension culture decreased the LDH activity of ATE while increased the number of viable adipocytes and reduced adipose tissue necrosis. CONCLUSION Compared with adherent culture, stirred suspension culture is a reliable, time- and labor-saving method to collect ATE, which might be used to improve the downstream applications of ATE.
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Affiliation(s)
- Yan Zhang
- a State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology , Sichuan University , Chengdu , China
| | - Mei Yu
- a State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology , Sichuan University , Chengdu , China
| | - Xueyong Zhao
- a State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology , Sichuan University , Chengdu , China
| | - Minjia Dai
- a State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology , Sichuan University , Chengdu , China
| | - Chang Chen
- a State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology , Sichuan University , Chengdu , China
| | - Weidong Tian
- a State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine & Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology , Sichuan University , Chengdu , China
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López JF, Sarkanen JR, Huttala O, Kaartinen IS, Kuokkanen HO, Ylikomi T. Adipose tissue extract shows potential for wound healing: in vitro proliferation and migration of cell types contributing to wound healing in the presence of adipose tissue preparation and platelet rich plasma. Cytotechnology 2018; 70:1193-1204. [PMID: 29511946 DOI: 10.1007/s10616-018-0211-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 02/19/2018] [Indexed: 12/28/2022] Open
Abstract
Growth factors are the key elements in wound healing signaling for cell migration, differentiation and proliferation. Platelet-rich plasma (PRP), one of the most studied sources of growth factors, has demonstrated to promote wound healing in vitro and in vivo. Adipose tissue is an alternative source of growth factors. Through a simple lipoaspirate method, adipose derived growth factor-rich preparation (adipose tissue extract; ATE) can be obtained. The authors set out to compare the effects of these two growth factor sources in cell proliferation and migration (scratch) assays of keratinocyte, fibroblast, endothelial and adipose derived stem cells. Growth factors involved in wound healing were measured: keratinocyte growth factor, epidermal growth factor, insulin-like growth factor, interleukin 6, platelet-derived growth factor beta, tumor necrosis factor alfa, transforming growth factor beta and vascular endothelial growth factor. PRP showed higher growth factor concentrations, except for keratinocyte growth factor, that was present in adipose tissue in greater quantities. This was reflected in vitro, where ATE significantly induced proliferation of keratinocytes at day 6 (p < 0.001), compared to plasma and control. Similarly, ATE-treated fibroblast and adipose stem cell cultures showed accelerated migration in scratch assays. Moreover, both sources showed accelerated keratinocyte migration. Adipose tissue preparation has an inductive effect in wound healing by proliferation and migration of cells involved in wound closure. Adipose tissue preparation appears to offer the distinct advantage of containing the adequate quantities of growth factors that induce cell activation, proliferation and migration, particularly in the early phase of wound healing.
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Affiliation(s)
- Jenny F López
- Cell Biology, Faculty of Medicine and Life Sciences, University of Tampere, PL100, 33014, Tampere, Finland. .,Department of Plastic Surgery, Unit of Musculoskeletal Diseases, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland.
| | - Jertta-Riina Sarkanen
- Cell Biology, Faculty of Medicine and Life Sciences, University of Tampere, PL100, 33014, Tampere, Finland.,Science Center, Pirkanmaa Hospital District, Tampere, Finland
| | - Outi Huttala
- FICAM, Finnish Center for Alternative Methods, Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Ilkka S Kaartinen
- Department of Plastic Surgery, Unit of Musculoskeletal Diseases, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland.,Science Center, Pirkanmaa Hospital District, Tampere, Finland
| | - Hannu O Kuokkanen
- Department of Plastic Surgery, Unit of Musculoskeletal Diseases, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland.,Science Center, Pirkanmaa Hospital District, Tampere, Finland
| | - Timo Ylikomi
- Cell Biology, Faculty of Medicine and Life Sciences, University of Tampere, PL100, 33014, Tampere, Finland.,Science Center, Pirkanmaa Hospital District, Tampere, Finland
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10
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Li J, Li H, Tian W. Isolation of Murine Adipose-Derived Stromal/Stem Cells Using an Explant Culture Method. Methods Mol Biol 2018; 1773:167-171. [PMID: 29687389 DOI: 10.1007/978-1-4939-7799-4_14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Adipose tissue provides valuable cell source for tissue engineering, regenerative medicine, and adipose tissue biology studies. The most widely used adipose-derived stromal/stem cells (ASCs) isolation protocol involves enzymatic digestion with collagenase. However, the yield of the method is poor even impossible to collect enough stromal vascular fraction (SVF) for expansion when the sample size is small, for instance only new born mice is available for cell culture. Here, we describe an efficient protocol for the isolation and expansion of ASCs using explant culture.
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Affiliation(s)
- Jie Li
- Center for Stem Cell Research and Regenerative Medicine, Tulane University School of Medicine, New Orleans, LA, USA
- LaCell LLC, New Orleans, LA, USA
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Li
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weidong Tian
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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11
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Wound Healing Effect of Conditioned Media Obtained From Adipose Tissue on Human Skin Cells: A Comparative in Vitro Study. Ann Plast Surg 2017; 77:156-63. [PMID: 25275476 DOI: 10.1097/sap.0000000000000358] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Split-thickness skin grafting is the gold standard to cover extensive acute and chronic wounds with a well-vascularized wound bed. Although some headway has been made in developing biological agents to speed up healing, there is still no treatment that sufficiently replaces skin grafts to date. The use of secretory factors of adipose tissue may be a feasible approach to developing topical wound applications for faster wound healing. METHODS In this study, the effect of conditioned media (CMs) of human adipose-derived stem cells (ASCs), adipocytes, or adipose tissue on human skin cells was evaluated for viability, proliferation, and migration in vitro. Differentiation potential of stem cells treated with CM was monitored by AdipoRed staining and qualitative real-time polymerase chain reaction. Angiogenic potential of human endothelial cells treated with CM was tested via sprouting assay. RESULTS The CM of adipose tissue significantly enhanced ASC proliferation (P < 0.01). Treatment with CM showed no inductive effect on ASC differentiation into adipocytes but, at the same time, significantly induced cell sprouting of endothelial cells (P < 0.001). We show for the first time that CM of adipose tissue is a potent inducer of proliferation of ASCs and angiogenesis, with comparable effects with those of stem cell-enriched CM. CONCLUSIONS We suggest the use of the secretome of adipose tissue to produce CM for topical application on wounds, rather than working with adipose tissue or including the difficult process of enriching the patients' stem cells in vitro.
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12
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Zhang Y, Yu M, Dai M, Chen C, Tang Q, Jing W, Wang H, Tian W. miR-450a-5p within rat adipose tissue exosome-like vesicles promotes adipogenic differentiation by targeting WISP2. J Cell Sci 2017; 130:1158-1168. [PMID: 28167681 DOI: 10.1242/jcs.197764] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/31/2017] [Indexed: 02/05/2023] Open
Abstract
Adipose tissue is an active endocrine organ that can secrete a wide number of factors to regulate adipogenesis via paracrine signals. In addition to soluble proteins in adipose tissue, microRNAs (miRNAs) enriched in extracellular vesicles (EVs), such as exosomes or microvesicles, could modulate intercellular communications. In this study, we demonstrated that exosome-like vesicles derived from adipose tissue (Exo-AT) were internalized by adipose tissue-derived stem cells (ADSCs), and that these, in turn, induced adipogenesis. High-throughput sequencing showed that 45 miRNAs were enriched in Exo-AT, and 31.11% of them were associated with adipogenesis, compared with ADSC-derived exosome-like vesicles (Exo-ADSC). miR-450a-5p, one of the most abundant miRNAs in Exo-AT, was a proadipogenic miRNA. Further study demonstrated that miR-450a-5p promoted adipogenesis through repressing expression of WISP2 by targeting its 3' untranslated region. Additionally, Exo-AT could also downregulate the expression of WISP2, while miR-450a-5p inhibitor reversed this effect. Moreover, inhibition of miR-450a-5p impaired adipogenesis mediated by exosome-like vesicles. In conclusion, Exo-AT mediates adipogenic differentiation through a mechanism involving transfer of miR-450a-5p.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Mei Yu
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China .,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China
| | - Minjia Dai
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chang Chen
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Qi Tang
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Wei Jing
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hang Wang
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Weidong Tian
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu 610041, China .,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Sec., Ren Min Nan Road, Chengdu, Sichuan Province 610041, P.R. China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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13
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Luo L, He Y, Chang Q, Xie G, Zhan W, Wang X, Zhou T, Xing M, Lu F. Polycaprolactone nanofibrous mesh reduces foreign body reaction and induces adipose flap expansion in tissue engineering chamber. Int J Nanomedicine 2016; 11:6471-6483. [PMID: 27980405 PMCID: PMC5147407 DOI: 10.2147/ijn.s114295] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Tissue engineering chamber technique can be used to generate engineered adipose tissue, showing the potential for the reconstruction of soft tissue defects. However, the consequent foreign body reaction induced by the exogenous chamber implantation causes thick capsule formation on the surface of the adipose flap following capsule contracture, which may limit the internal tissue expansion. The nanotopographical property and architecture of nanofibrous scaffold may serve as a promising method for minimizing the foreign body reaction. Accordingly, electrospinning porous polycaprolactone (PCL) nanofibrous mesh, a biocompatible synthetic polymer, was attached to the internal surface of the chamber for the reducing local foreign body reaction. Adipose flap volume, level of inflammation, collagen quantification, capsule thickness, and adipose tissue-specific gene expression in chamber after implantation were evaluated at different time points. The in vivo study revealed that the engineered adipose flaps in the PCL group had a structure similar to that in the controls and normal adipose tissue structure but with a larger flap volume. Interleukin (IL)-1β, IL-6, and transforming growth factor-β expression decreased significantly in the PCL group compared with the control. Moreover, the control group had much more collagen deposition and thicker capsule than that observed in the PCL group. These results indicate that the unique nanotopographical effect of electrospinning PCL nanofiber can reduce foreign body reaction in a tissue engineering chamber, which maybe a promising new method for generating a larger volume of mature, vascularized, and stable adipose tissue.
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Affiliation(s)
- Lin Luo
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Yunfan He
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
- Department of Mechanical Engineering, Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Qiang Chang
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
- Department of Mechanical Engineering, Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Gan Xie
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Weiqing Zhan
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Xuecen Wang
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Tao Zhou
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Malcolm Xing
- Department of Mechanical Engineering, Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba, Canada
- Children’s Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - Feng Lu
- Department of Plastic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
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14
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Dai M, Zhang Y, Yu M, Tian W. Therapeutic applications of conditioned medium from adipose tissue. Cell Prolif 2016; 49:561-7. [PMID: 27487984 PMCID: PMC6496245 DOI: 10.1111/cpr.12281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 06/23/2016] [Indexed: 02/05/2023] Open
Abstract
For the past number of decades, adipose tissue has attracted significant interest due to its complicated composition and versatile functions. Adipose tissue is no longer considered to be just an energy-storing fat pad, but is also a key ring player in interaction networks between various organs and tissues. A wide range of factors released by adipose tissue are responsible for regulation of adipose tissue and other distant target tissues and cells, such as kidneys, skeletal muscle, the cardiovascular system and the immune system, in an auto-/paracrine manner. A mixture of bioactive molecules makes up the conditioned medium of adipose tissue. The beneficial role played by these bioactive molecules in angiogenesis, wound healing, tissue regeneration and immunomodulation has been demonstrated by various studies. Study of this conditioned medium helps deepen our understanding of underlying mechanisms and broadens the potential for therapeutic applications. In this review, we have aimed to improve fundamental understanding of conditioned medium from adipose tissue and to summarize recent efforts to study its therapeutic applications.
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Affiliation(s)
- Minjia Dai
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yan Zhang
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Mei Yu
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China.
| | - Weidong Tian
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China.
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15
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Lopez J, Huttala O, Sarkanen JR, Kaartinen I, Kuokkanen H, Ylikomi T. Cytokine-Rich Adipose Tissue Extract Production from Water-Assisted Lipoaspirate: Methodology for Clinical Use. Biores Open Access 2016; 5:269-78. [PMID: 27679753 PMCID: PMC5035828 DOI: 10.1089/biores.2016.0030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Proper functioning wound healing strategies are sparse. Adequate vascular formation to the injured area, as well as replacement of the volume loss, is fundamental in soft tissue repair. Tissue engineering strategies have been proposed for the treatment of these injury sites. Novel cell-free substance, human adipose tissue extract (ATE), has been previously shown to induce in vitro angiogenesis and adipogenesis and in vivo soft tissue formation. This study reports the translation of ATE preparation from laboratory to the operating room (OR). ATE samples for this study were derived from adipose tissue obtained with the water-jet assisted liposuction technique from 27 healthy patients. The variables studied included incubation time (15, 30, and 45 min), temperature (room temperature vs. 37°C), and filter type to determine the optimal method yielding the most consistent total protein content, as well as consistent and high expression of adipose-derived growth factors and cytokines, including: vascular endothelial growth factor, basic fibroblast growth factor, interleukin-6, adiponectin, leptin, and insulin-like growth factor. Following the optimization, samples were produced in the OR and tested for their sterility. No significant differences were observed when comparing extract incubation time points or incubation temperature. Nonetheless, when studying the different filter types used, a syringe filter with PES membrane with larger filter area showed significantly higher protein concentration (p ≤ 0.018). When studying the different growth factor concentrations, ELISA results showed less variation in cytokine concentrations in the OR samples with the optimized protocol. All of the OR samples were tested sterile. The devised protocol is an easy and reproducible OR-ready method for ATE generation. As an attractive source of growth factors, ATE is a promising alternative in the vast field of tissue engineering. Its clinical applications include volume replacement as a complement to fillers and improvement of the permanence of fat grafts and wound healing, among other bioactive functions.
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Affiliation(s)
- Jenny Lopez
- Department of Cell Biology, School of Medicine, University of Tampere, Tampere, Finland.; Department of Plastic Surgery, Unit of Musculoskeletal Diseases, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland
| | - Outi Huttala
- FICAM, Finnish Centre for Alternative Methods, School of Medicine, University of Tampere , Tampere, Finland
| | - Jertta-Riina Sarkanen
- Department of Cell Biology, School of Medicine, University of Tampere, Tampere, Finland.; Science Center, Pirkanmaa Hospital District, Finland
| | - Ilkka Kaartinen
- Department of Plastic Surgery, Unit of Musculoskeletal Diseases, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland.; Science Center, Pirkanmaa Hospital District, Finland
| | - Hannu Kuokkanen
- Department of Plastic Surgery, Unit of Musculoskeletal Diseases, Tampere University Hospital, Pirkanmaa Hospital District, Tampere, Finland.; Science Center, Pirkanmaa Hospital District, Finland
| | - Timo Ylikomi
- Department of Cell Biology, School of Medicine, University of Tampere, Tampere, Finland.; Science Center, Pirkanmaa Hospital District, Finland
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16
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Generating an Engineered Adipose Tissue Flap Using an External Suspension Device. Plast Reconstr Surg 2016; 138:109-120. [DOI: 10.1097/prs.0000000000002305] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Zhang Y, Yu M, Tian W. Physiological and pathological impact of exosomes of adipose tissue. Cell Prolif 2016; 49:3-13. [PMID: 26776755 DOI: 10.1111/cpr.12233] [Citation(s) in RCA: 88] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/14/2015] [Indexed: 02/05/2023] Open
Abstract
Exosomes are nanovesicles that have emerged as a new intercellular communication system for transporting proteins and RNAs; recent studies have shown that they play a role in many physiological and pathological processes such as immune regulation, cell differentiation, infection and cancer. By transferring proteins, mRNAs and microRNAs, exosomes act as information vehicles that alter the behavior of recipient cells. Compared to direct cell-cell contact or secreted factors, exosomes can affect recipient cells in more efficient ways. In whole adipose tissues, it has been shown that exosomes exist in supernatants of adipocytes and adipose stromal cells (ADSCs). Adipocyte exosomes are linked to lipid metabolism and obesity-related insulin resistance and exosomes secreted by ADSCs are involved in angiogenesis, immunomodulation and tumor development. This review introduces characteristics of exosomes in adipose tissue, summarizes their functions in different physiological and pathological processes and provides the further insight into potential application of exosomes to disease diagnosis and treatment.
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Affiliation(s)
- Yan Zhang
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China.,Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Mei Yu
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China
| | - Weidong Tian
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, China.,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, China.,Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, China
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18
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Li J, Li H, Tian Y, Yang Y, Chen G, Guo W, Tian W. Cytoskeletal binding proteins distinguish cultured dental follicle cells and periodontal ligament cells. Exp Cell Res 2015; 345:6-16. [PMID: 26708290 DOI: 10.1016/j.yexcr.2015.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 12/15/2015] [Accepted: 12/18/2015] [Indexed: 02/05/2023]
Abstract
Human dental follicle cells (DFCs) and periodontal ligament cells (PDLCs) derived from the ectomesenchymal tissue, have been shown to exhibit stem/progenitor cell properties and the ability to induce tissue regeneration. Stem cells in dental follicle differentiate into cementoblasts, periodontal ligament fibroblasts and osteoblasts, these cells form cementum, periodontal ligament and alveolar bone, respectively. While stem cells in dental follicle are a precursor to periodontal ligament fibroblasts, the molecular changes that distinguish cultured DFCs from PDLCs are still unknown. In this study, we have compared the immunophenotypic features and cell cycle status of the two cell lines. The results suggest that DFCs and PDLCs displayed similar features related to immunophenotype and cell cycle. Then we employed an isobaric tag for relative and absolute quantitation (iTRAQ) proteomics strategy to reveal the molecular differences between the two cell types. A total of 2138 proteins were identified and 39 of these proteins were consistently differentially expressed between DFCs and PDLCs. Gene ontology analyses revealed that the protein subsets expressed higher in PDLCs were related to actin binding, cytoskeletal protein binding, and structural constituent of muscle. Upon validation by real-time PCR, western blotting, and immunofluorescence staining. Tropomyosin 1 (TPM1) and caldesmon 1 (CALD1) were expressed higher in PDLCs than in DFCs. Our results suggested that PDLCs display enhanced actin cytoskeletal dynamics relative to DFCs while DFCs may exhibit a more robust antioxidant defense ability relative to PDLCs. This study expands our knowledge of the cultured DFCs and PDLCs proteome and provides new insights into possible mechanisms responsible for the different biological features observed in each cell type.
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Affiliation(s)
- Jie Li
- College of Life Science, Sichuan University, Chengdu, China; National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Li
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ye Tian
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yaling Yang
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Guoqing Chen
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weihua Guo
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Pedodontics, West China School of Stomatology, Sichuan University, Chengdu, China.
| | - Weidong Tian
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China.
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19
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Unser AM, Tian Y, Xie Y. Opportunities and challenges in three-dimensional brown adipogenesis of stem cells. Biotechnol Adv 2015; 33:962-79. [PMID: 26231586 DOI: 10.1016/j.biotechadv.2015.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 07/07/2015] [Accepted: 07/23/2015] [Indexed: 12/21/2022]
Abstract
The formation of brown adipose tissue (BAT) via brown adipogenesis has become a notable process due to its ability to expend energy as heat with implications in the treatment of metabolic disorders and obesity. With the advent of complexity within white adipose tissue (WAT) along with inducible brown adipocytes (also known as brite and beige), there has been a surge in deciphering adipocyte biology as well as in vivo adipogenic microenvironments. A therapeutic outcome would benefit from understanding early events in brown adipogenesis, which can be accomplished by studying cellular differentiation. Pluripotent stem cells are an efficient model for differentiation and have been directed towards both white adipogenic and brown adipogenic lineages. The stem cell microenvironment greatly contributes to terminal cell fate and as such, has been mimicked extensively by various polymers including those that can form 3D hydrogel constructs capable of biochemical and/or mechanical modifications and modulations. Using bioengineering approaches towards the creation of 3D cell culture arrangements is more beneficial than traditional 2D culture in that it better recapitulates the native tissue biochemically and biomechanically. In addition, such an approach could potentially protect the tissue formed from necrosis and allow for more efficient implantation. In this review, we highlight the promise of brown adipocytes with a focus on brown adipogenic differentiation of stem cells using bioengineering approaches, along with potential challenges and opportunities that arise when considering the energy expenditure of BAT for prospective therapeutics.
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Affiliation(s)
- Andrea M Unser
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road Albany, NY 12203, USA
| | - Yangzi Tian
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road Albany, NY 12203, USA
| | - Yubing Xie
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road Albany, NY 12203, USA.
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21
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