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Kim M, Yeo M, Lee K, Park MJ, Han G, Lee C, Park J, Jung B. Extraction and Characterization of Human Adipose Tissue-Derived Collagen: Toward Xeno-Free Tissue Engineering. Tissue Eng Regen Med 2024; 21:97-109. [PMID: 38079100 PMCID: PMC10764687 DOI: 10.1007/s13770-023-00612-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 01/04/2024] Open
Abstract
BACKGROUND Collagen is a key component of connective tissue and has been frequently used in the fabrication of medical devices for tissue regeneration. Human-originated collagen is particularly appealing due to its low immune response as an allograft biomaterial compared to xenografts and its ability to accelerate the regeneration process. Ethically and economically, adipose tissues available from liposuction clinics are a good resource to obtain human collagen. However, studies are still scarce on the extraction and characterization of human collagen, which originates from adipose tissue. The aim of this study is to establish a novel and simple method to extract collagen from human adipose tissue, characterize the collagen, and compare it with commercial-grade porcine collagen for tissue engineering applications. METHODS We developed a method to extract the collagen from human adipose tissue under quasi-Good Manufacturing Practice (GMP) conditions, including freezing the tissue, blood removal, and ethanol-based purification. Various techniques, including protein quantification, decellularization assessment, SDS-PAGE, FTIR, and CD spectroscopy analysis, were used for characterization. Amino acid composition was compared with commercial collagen. Biocompatibility and cell proliferation tests were performed, and in vitro tests using collagen sponge scaffolds were conducted with statistical analysis. RESULTS Our results showed that this human adipose-derived collagen was equivalent in quality to commercially available porcine collagen. In vitro testing demonstrated high cell attachment and the promotion of cell proliferation. CONCLUSION In conclusion, we developed a simple and novel method to extract and characterize collagen and extracellular matrix from human adipose tissue, offering a potential alternative to animal-derived collagen for xeno-free tissue engineering applications.
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Affiliation(s)
- Minseong Kim
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea.
- Medical Device Development Center, KBIO HEALTH OSONG Medical Innovation Foundation, 123, Osongsaengmyeong-ro, Cheongju-si, 28160, Republic of Korea.
| | - MyungGu Yeo
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - KyoungHo Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Min-Jeong Park
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Gyeongyeop Han
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Chansong Lee
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Jihyo Park
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea
| | - Bongsu Jung
- Medical Device Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, 80, Chembok-ro, Dong-gu, Daegu, 41061, Republic of Korea.
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Heidari F, Saadatmand M, Simorgh S. Directly coaxial bioprinting of 3D vascularized tissue using novel bioink based on decellularized human amniotic membrane. Int J Biol Macromol 2023; 253:127041. [PMID: 37742904 DOI: 10.1016/j.ijbiomac.2023.127041] [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: 07/20/2023] [Revised: 09/05/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Despite several progressions in the biofabrication of large-scale engineered tissues, direct biopri nting of perfusable three-dimensional (3D) vasculature remained unaddressed. Developing a feasible method to generate cell-laden thick tissue with an effective vasculature network to deliver oxygen and nutrient is crucial for preventing the formation of necrotic spots and tissue death. In this study, we developed a novel technique to directly bioprint 3D cell-laden prevascularized construct. We developed a novel bioink by mixing decellularized human amniotic membrane (dHAM) and alginate (Alg) in various ratios. The bioink with encapsulated human vein endothelial cells (HUVECs) and a crosslinker, CaCl2, were extruded via sheath and core nozzle respectively to directly bioprint a perfusable 3D vasculature construct. The various concentration of bioink was assessed from several aspects like biocompatibility, porosity, swelling, degradation, and mechanical characteristics, and accordingly, optimized concentration was selected (Alg 4 %w/v - dHAM 0.6 %w/v). Then, the crosslinked bioink without microchannel and the 3D bioprinted construct with various microchannel distances (0, 1.5 mm, 3 mm) were compared. The 3D bioprinted construct with a 1.5 mm microchannels distance demonstrated superiority owing to its 492 ± 18.8 % cell viability within 14 days, excellent tubulogenesis, remarkable expression of VEGFR-2 which play a crucial role in endothelial cell proliferation, migration, and more importantly angiogenesis, and neovascularization. This perfusable bioprinted construct also possess appropriate mechanical stability (32.35 ± 5 kPa Young's modulus) for soft tissue. Taking these advantages into the account, our new bioprinting method possesses a prominent potential for the fabrication of large-scale prevascularized tissue to serve for regenerative medicine applications like implantation, drug-screening platform, and the study of mutation disease.
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Affiliation(s)
- Faranak Heidari
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.
| | - Maryam Saadatmand
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.
| | - Sara Simorgh
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Zhai X, Tao X, Wu Y, Jin K, Tan H, Zhou T, Chen Y. Injectable and Self-Adaptive Gel Scaffold Based on Heparin Microspheres for Adipogenesis of Human Adipose-Derived Stem Cells. Biomacromolecules 2023; 24:4663-4671. [PMID: 37722066 DOI: 10.1021/acs.biomac.3c00348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
An injectable and self-adaptive heparin microsphere-based cell scaffold was developed to achieve adipose regeneration. Simultaneously, the cell scaffold exhibited a dynamic architecture, self-regulated glucose levels, sustained insulin delivery, and steady viscoelastic properties for adipogenesis. The dynamic cell scaffold is cross-linked by the boronate-diol interaction among heparin-based microspheres, which have boronate and maltose groups. Because of the boronate-maltose ester bonds, the gelatinous complex would be partially dismantled and readily display glucose-sensitive performance by free glucose via competitive displacement. The dynamic cross-linking heparin microsphere scaffold can deliver the lipogenic drug insulin to enhance lipid filling, which has an impact on fat tissue enhancement. A 4-week in vitro cell culture demonstrated that the dynamic heparin microsphere-based cell scaffold, through loading with insulin, showed significantly higher efficiency in promoting ASC differentiation compared with traditional 3D culture methods. In vivo histological results further demonstrated that there was a significant increase in adipose in the proposed cell scaffold, which proved to be statistically significant compared with traditional biomaterials. Notable stain expression of the FABP4 and PPAR-γ genes was also observed in the dynamic cell scaffold containing insulin, which was more similar to natural fat.
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Affiliation(s)
- Xinyue Zhai
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xinwei Tao
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yuqian Wu
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Kesun Jin
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Huaping Tan
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Tianle Zhou
- School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yong Chen
- Department of Orthopaedics, Jinling Hospital, Nanjing 210002, China
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Tamayo-Angorrilla M, López de Andrés J, Jiménez G, Marchal JA. The biomimetic extracellular matrix: a therapeutic tool for breast cancer research. Transl Res 2022; 247:117-136. [PMID: 34844003 DOI: 10.1016/j.trsl.2021.11.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/17/2021] [Accepted: 11/21/2021] [Indexed: 12/14/2022]
Abstract
A deeper knowledge of the functional versatility and dynamic nature of the ECM has improved the understanding of cancer biology. Translational Significance: This work provides an in-depth view of the importance of the ECM to develop more mimetic breast cancer models, which aim to recreate the components and architecture of tumor microenvironment. Special focus is placed on decellularized matrices derived from tissue and cell culture, both in procurement and applications, as they have achieved great success in cancer research and pharmaceutical sector. The extracellular matrix (ECM) is increasingly recognized as a master regulator of cell behavior and response to breast cancer (BC) treatment. During BC progression, the mammary gland ECM is remodeled and altered in the composition and organization. Accumulated evidence suggests that changes in the composition and mechanics of ECM, orchestrated by tumor-stromal interactions along with ECM remodeling enzymes, are actively involved in BC progression and metastasis. Understanding how specific ECM components modulate the tumorigenic process has led to an increased interest in the development of biomaterial-based biomimetic ECM models to recapitulate key tumor characteristics. The decellularized ECMs (dECMs) have emerged as a promising in vitro 3D tumor model, whose recent advances in the processing and application could become the biomaterial by excellence for BC research and the pharmaceutical industry. This review offers a detailed view of the contribution of ECM in BC progression, and highlights the application of dECM-based biomaterials as promising personalized tumor models that more accurately mimic the tumorigenic mechanisms of BC and the response to treatment. This will allow the design of targeted therapeutic approaches adapted to the specific characteristics of each tumor that will have a great impact on the precision medicine applied to BC patients.
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Affiliation(s)
- Marta Tamayo-Angorrilla
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain
| | - Julia López de Andrés
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria, ibs.GRANADA, University Hospitals of Granada- University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain
| | - Gema Jiménez
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria, ibs.GRANADA, University Hospitals of Granada- University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain.
| | - Juan Antonio Marchal
- Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Instituto de Investigación Biosanitaria, ibs.GRANADA, University Hospitals of Granada- University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain.
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Applications of Stem Cell Therapy and Adipose-Derived Stem Cells for Skin Repair. CURRENT DERMATOLOGY REPORTS 2022. [DOI: 10.1007/s13671-022-00357-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Three-Dimensional Vascularized Lung Cancer-on-a-Chip with Lung Extracellular Matrix Hydrogels for In Vitro Screening. Cancers (Basel) 2021; 13:cancers13163930. [PMID: 34439103 PMCID: PMC8393390 DOI: 10.3390/cancers13163930] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 12/13/2022] Open
Abstract
Recent advances in immunotherapies and molecularly targeted therapies have led to an increased interest in exploring the field of in vitro tumor mimetic platforms. An increasing need to understand the mechanisms of anti-cancer therapies has led to the development of natural tumor tissue-like in vitro platforms capable of simulating the tumor microenvironment. The incorporation of vascular structures into the in vitro platforms could be a crucial factor for functional investigation of most anti-cancer therapies, including immunotherapies, which are closely related to the circulatory system. Decellularized lung extracellular matrix (ldECM), comprised of ECM components and pro-angiogenic factors, can initiate vascularization and is ideal for mimicking the natural microenvironment. In this study, we used a ldECM-based hydrogel to develop a 3D vascularized lung cancer-on-a-chip (VLCC). We specifically encapsulated tri-cellular spheroids made from A549 cells, HUVECs, and human lung fibroblasts, for simulating solid type lung cancer. Additionally, two channels were incorporated in the hydrogel construct to mimic perfusable vessel structures that resemble arterioles or venules. Our study highlights how a more effective dose-dependent action of the anti-cancer drug Doxorubicin was observed using a VLCC over 2D screening. This observation confirmed the potential of the VLCC as a 3D in vitro drug screening tool.
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Pu W, Han Y, Yang M. Human decellularized adipose tissue hydrogels as a culture platform for human adipose-derived stem cell delivery. J Appl Biomater Funct Mater 2021; 19:2280800020988141. [PMID: 33926291 DOI: 10.1177/2280800020988141] [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] [Indexed: 11/16/2022] Open
Abstract
Adipose-derived stem cells (ADSCs) have been widely researched and used as a drug therapy in many fields like disease treatment and tissue engineering. However, ADSCs are susceptible to the surrounding environment. The emergence of acellular extracellular matrix provides a solution, which can serve as biomaterial scaffold as well as original ecological niche for the stem cells. Therefore, we propose the hypothesis that human decellularized adipose tissues (hDAT) are processed into injectable hydrogels and then mixed evenly with ADSCs. So that the ADSCs embedded-hydrogels could directly carry the stem cells to the appropriate sites. The hDAT hydrogel could provide microenvironmental protection for ADSCs. In this study, we successfully made human decellularized adipose tissue hydrogel (hDAT-gel), which was temperature-sensitive, liquid at 4°C and semi-solid at 37°C. When the ADSCs were embedded in hDAT-gel, they survived well and continued to grow well in layers. When the pre-gel containing ADSCs was injected subcutaneously into nude mice, the sample results after 15 min showed gelation occurred in situ. These results suggested that hDAT-gel could provide a culture platform for ADSCs delivery.
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Affiliation(s)
- Wenwen Pu
- Department of Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yan Han
- Department of Plastic and Reconstructive Surgery, the First Medical Center, Chinese PLA (People's Liberation Army) General Hospital, Beijing, China
| | - Mingyong Yang
- Department of Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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8
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Jiang X, Lai XR, Lu JQ, Tang LZ, Zhang JR, Liu HW. Decellularized adipose tissue: A key factor in promoting fat regeneration by recruiting and inducing mesenchymal stem cells. Biochem Biophys Res Commun 2021; 541:63-69. [PMID: 33477034 DOI: 10.1016/j.bbrc.2020.12.108] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 12/21/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Decellularized adipose tissue (DAT) has attracted much attention due to its wide range of sources and adipose regeneration capacity. However, the lipogenic efficiency of DAT is still controversial due to its unclear mechanism. To this point, it is crucial to clarify the mechanism of DAT in promoting adipose regeneration Objective: This study aims to explore the mechanism of DAT promoting adipose regeneration and survival mechanism of DAT transplantation in vivo. METHODS DAT preparation by repeated freeze-thaw, enzymatic digestion, and isopropanol degreasing. Histology, DAPI, immunohistochemistry, immunofluorescence and scanning electron microscopy confirmed the efficacy and reproducibility of these approaches. BM-MSCs, ADSCs and UCMSCs were cocultured with DAT for 14 days and then stained with oil red O. Adipogenic genes of three MSCs were detected by RT-PCR. DAT and adipose tissue were transplanted subcutaneously into the back of nude mice to observe medium and long-term morphological changes, vascularization, and lipid-forming efficiency. Mass spectrometry (MS)-based proteomic to analyze the adipogenic protein contents of DAT and adipose tissue. RESULTS The DAT without any cellular components but with an abundance of collagen; neither DNA nor lipids were detected. Seeding experiments with MSCs indicated that the DAT provided an inductive microenvironment for adipogenesis, supporting the expression of the master regulators PPARγ. Within four months after transplantation, HE morphology of DAT was identical to adipose cells. Immunofluorescence markers CD31 and perilipin were increased in DAT, while the retention rate gradually decreased over time, eventually accounting for 33.7% of the original volume. MS-based proteomic analyses identified 1013 types of proteins in adipose tissue and 29 proteins in the DAT. Analyses of GO and KEGG databases suggested that DAT contained a variety of proteins involved in fat metabolism. CONCLUSIONS DAT can interact with different types of MSCs and ultimately achieve adipose regeneration. The presence of multiple adipogenic proteins in DAT make it play a vital role in adipose regeneration. DAT is expected to be an ideal bio-derived scaffold for adipose tissue engineering.
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Affiliation(s)
- Xiao Jiang
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, 510630, PR China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong Province, 510630, PR China.
| | - Xin-Rui Lai
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, 510630, PR China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong Province, 510630, PR China.
| | - Jin-Qiang Lu
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, 510630, PR China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong Province, 510630, PR China.
| | - Ling-Zhi Tang
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, 510630, PR China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong Province, 510630, PR China.
| | - Jin-Rong Zhang
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, 510630, PR China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong Province, 510630, PR China.
| | - Hong-Wei Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, 510630, PR China; Innovative Technology Research Institute of Tissue Repair and Regeneration, Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, Guangdong Province, 510630, PR China.
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Pu W, Ren J, Chen Y, Shu J, Cui L, Han Y, Xi J, Pei X, Yue W, Han Y. Injectable human decellularized adipose tissue hydrogel containing stem cells enhances wound healing in mouse. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125268] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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10
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Sharath SS, Ramu J, Nair SV, Iyer S, Mony U, Rangasamy J. Human Adipose Tissue Derivatives as a Potent Native Biomaterial for Tissue Regenerative Therapies. Tissue Eng Regen Med 2020; 17:123-140. [PMID: 31953618 PMCID: PMC7105544 DOI: 10.1007/s13770-019-00230-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/07/2019] [Accepted: 11/15/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Human adipose tissue is a great source of translatable biomaterials owing to its ease of availability and simple processing. Reusing discardable adipose tissue for tissue regeneration helps in mimicking the exact native microenvironment of tissue. Over the past 10 years, extraction, processing, tuning and fabrication of adipose tissue have grabbed the attention owing to their native therapeutic and regenerative potential. The present work gives the overview of next generation biomaterials derived from human adipose tissue and their development with clinical relevance. METHODS Around 300 articles have been reviewed to widen the knowledge on the isolation, characterization techniques and medical applications of human adipose tissue and its derivatives from bench to bedside. The prospective applications of adipose tissue derivatives like autologous fat graft, stromal vascular fraction, stem cells, preadipocyte, adipokines and extracellular matrix, their behavioural mechanism, rational property of providing native bioenvironment, circumventing their translational abilities, recent advances in featuring them clinically have been reviewed extensively to reveal the dormant side of human adipose tissue. RESULTS Basic understanding about the molecular and structural aspect of human adipose tissue is necessary to employ it constructively. This review has nailed the productive usage of human adipose tissue, in a stepwise manner from exploring the methods of extracting derivatives, concerns during processing and its formulations to turning them into functional biomaterials. Their performance as functional biomaterials for skin regeneration, wound healing, soft tissue defects, stem cell and other regenerative therapies under in vitro and in vivo conditions emphasizes the translational efficiency of adipose tissue derivatives. CONCLUSION In the recent years, research interest has inclination towards constructive tissue engineering and regenerative therapies. Unravelling the maximum utilization of human adipose tissue derivatives paves a way for improving existing tissue regeneration and cellular based therapies and other biomedical applications.
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Affiliation(s)
- Siva Sankari Sharath
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, 682041, India
| | - Janarthanan Ramu
- Department of Plastic and Reconstructive Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, 682041, India
| | - Shantikumar Vasudevan Nair
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, 682041, India
| | - Subramaniya Iyer
- Department of Plastic and Reconstructive Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, 682041, India
| | - Ullas Mony
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, 682041, India.
| | - Jayakumar Rangasamy
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, 682041, India.
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Mahoney CM, Imbarlina C, Yates CC, Marra KG. Current Therapeutic Strategies for Adipose Tissue Defects/Repair Using Engineered Biomaterials and Biomolecule Formulations. Front Pharmacol 2018; 9:507. [PMID: 29867506 PMCID: PMC5966552 DOI: 10.3389/fphar.2018.00507] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 04/27/2018] [Indexed: 01/01/2023] Open
Abstract
Tissue engineered scaffolds for adipose restoration/repair has significantly evolved in recent years. Patients requiring soft tissue reconstruction, caused by defects or pathology, require biomaterials that will restore void volume with new functional tissue. The gold standard of autologous fat grafting (AFG) is not a reliable option. This review focuses on the latest therapeutic strategies for the treatment of adipose tissue defects using biomolecule formulations and delivery, and specifically engineered biomaterials. Additionally, the clinical need for reliable off-the-shelf therapies, animal models, and challenges facing current technologies are discussed.
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Affiliation(s)
- Christopher M Mahoney
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Cayla Imbarlina
- Department of Biology, Carlow University, Pittsburgh, PA, United States
| | - Cecelia C Yates
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Health Promotion and Development, School of Nursing, University of Pittsburgh, Pittsburgh, PA, United States.,McGowan Institute for Regenerative Medicine, Pittsburgh, PA, United States
| | - Kacey G Marra
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.,McGowan Institute for Regenerative Medicine, Pittsburgh, PA, United States.,Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
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12
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Türkkan S, Atila D, Akdağ A, Tezcaner A. Fabrication of functionalized citrus pectin/silk fibroin scaffolds for skin tissue engineering. J Biomed Mater Res B Appl Biomater 2018; 106:2625-2635. [DOI: 10.1002/jbm.b.34079] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 11/24/2017] [Accepted: 01/08/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Sibel Türkkan
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
| | - Deniz Atila
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
| | - Akın Akdağ
- Department of Chemistry; Middle East Technical University; Ankara Turkey
| | - Ayşen Tezcaner
- Department of Biomedical Engineering; Middle East Technical University; Ankara Turkey
- Department of Engineering Sciences; Middle East Technical University; Ankara Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
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A novel micro-to-macro structural approach for mechanical characterization of adipose tissue extracellular matrix. J Mech Behav Biomed Mater 2017; 77:140-147. [PMID: 28910711 DOI: 10.1016/j.jmbbm.2017.09.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/26/2017] [Accepted: 09/03/2017] [Indexed: 01/23/2023]
Abstract
Mechanical characterization of adipose tissue micro-components is important for various biomedical applications such as tissue engineering and predicting adipose tissue response to forces involved in relevant medical intervention procedures (e.g. breast needle biopsy). For this characterization, we introduce a novel structural method for micromechanical modeling of the adipose tissue. The micromechanical model was developed using fluid-structure interaction (FSI) formulation. We utilized this model within an inverse problem framework to estimate the hyperelastic parameters of adipose tissue extracellular matrix (ECM). Using this framework, the ECM hyperelastic parameters were changed in the FSI model systematically using an optimization algorithm such that the mechanical response obtained from the FSI model matches the corresponding experimental response reported in previous studies. To account for adipocyte size variation, the hyperelastic parameters were determined for different adipocyte sizes in the FSI model. Results obtained in this investigation indicate that at various strains under quasi-static conditions, the stiffness of adipose tissue ECM is ~ (2-3) times higher than that of the adipose tissue. The results also indicate a very good fit between the FSI model responses and their experimental counterparts. This indicates the reliability of the proposed FSI model in capturing major elements of the adipose tissue micromechanics. As such, it is potentially useful in applications such as tissue engineering, estimating tissue deformation pertaining to medical intervention and cataloging the mechanical properties of adipose tissue under health and pathological conditions. It can also be utilized as a forward model for developing inversion algorithms designed to determine pathological adipose microstructural alterations.
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Paul A, Stührenberg M, Chen S, Rhee D, Lee WK, Odom TW, Heilshorn SC, Enejder A. Micro- and nano-patterned elastin-like polypeptide hydrogels for stem cell culture. SOFT MATTER 2017; 13:5665-5675. [PMID: 28737182 PMCID: PMC5600619 DOI: 10.1039/c7sm00487g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We show that submicron-sized patterns can be imprinted into soft, recombinant-engineered protein hydrogels (here elastin-like proteins, ELP) by transferring wavy patterns from polydimethylsiloxane (PDMS) molds. The high-precision topographical tunability of the relatively stiff PDMS is translated to a bio-responsive, soft material, enabling topographical cell response studies at elastic moduli matching those of tissues. Aligned and unaligned wavy patterns with mold periodicities of 0.24-4.54 μm were imprinted and characterized by coherent anti-Stokes Raman scattering and atomic force microscopy. The pattern was successfully transferred down to 0.37 μm periodicity (width in ELP: 250 ± 50 nm, height: 70 ± 40 nm). The limit was set by inherent protein assemblies (diameter: 124-180 nm) that formed due to lower critical solution temperature behavior of the ELP during molding. The width/height of the ELP ridges depended on the degree of hydration; from complete dehydration to full hydration, ELP ridge width ranged from 79 ± 9% to 150 ± 40% of the mold width. The surface of the ridged ELP featured densely packed protein aggregates that were larger in size than those observed in bulk/flat ELP. Adipose-derived stem cells (ADSCs) oriented along hydrated aligned patterns with periodicities ≥0.60 μm (height ≥170 ± 100 nm), while random orientation was observed for smaller distances/amplitudes, as well as flat and unaligned wavy ELP surfaces. Hence, micro-molding of ELP is a promising approach to create tissue-mimicking, hierarchical architectures composed of tunable micron-sized structures with nano-sized protein aggregates, which opens the way for orthogonal screening of cell responses to topography and cell-adhesion ligands at relevant elastic moduli.
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Affiliation(s)
- A Paul
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 41296, Sweden.
| | - M Stührenberg
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 41296, Sweden.
| | - S Chen
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - D Rhee
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - W-K Lee
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
| | - T W Odom
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA and Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - S C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - A Enejder
- Department of Biology and Biological Engineering, Chalmers University of Technology, Gothenburg 41296, Sweden.
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15
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Mahoney CM, Kelmindi-Doko A, Snowden MJ, Peter Rubin J, Marra KG. Adipose derived delivery vehicle for encapsulated adipogenic factors. Acta Biomater 2017; 58:26-33. [PMID: 28532902 DOI: 10.1016/j.actbio.2017.05.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 05/17/2017] [Accepted: 05/18/2017] [Indexed: 10/19/2022]
Abstract
Hydrogels derived from adipose tissue extracellular matrix (AdECM) have shown potential in the ability to generate new adipose tissue in vivo. To further enhance adipogenesis, a composite adipose derived delivery system (CADDS) containing single- and double-walled dexamethasone encapsulated microspheres (SW and DW Dex MS) has been developed. Previously, our laboratory has published the use of Dex MS as an additive to enhance adipogenesis and angiogenesis in adipose tissue grafts. In the current work, AdECM and CADDS are extensively characterized, in addition to conducting in vitro cell culture analysis. Study results indicate the AdECM used for the CADDS has minimal cellular and lipid content allowing for gelation of its collagen structure under physiological conditions. Adipose-derived stem cell (ASC) culture studies confirmed biocompatibility with the CADDS, and adipogenesis was increased in experimental groups containing the hydrogel scaffold. In vitro studies of AdECM hydrogel containing microspheres demonstrated a controlled release of dexamethasone from SW and DW formulations. The delivery of Dex MS via an injectable hydrogel scaffold combines two biologically responsive components to develop a minimally, invasive, off-the-shelf biomaterial for adipose tissue engineering. STATEMENT OF SIGNIFICANCE Scientists and doctors have yet to develop an off-the-shelf product for patients with soft tissue defects. Recently, the use of adipose derived extracellular matrix (adECM) to generate new adipose tissue in vivo has shown great promise but individually, adECM still has limitations in terms of volume and consistency. The current work introduces a novel composite off-the-shelf construct comprised of an adECM-based hydrogel and dexamethasone encapsulated microspheres (Dex MS). The hydrogel construct serves not only as an injectable protein-rich scaffold but also a delivery system for the Dex MS for non-invasive application to the defect site. The methods and results presented are a progressive step forward in the field of adipose tissue engineering.
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16
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Kim JS, Choi JS, Cho YW. Cell-Free Hydrogel System Based on a Tissue-Specific Extracellular Matrix for In Situ Adipose Tissue Regeneration. ACS APPLIED MATERIALS & INTERFACES 2017; 9:8581-8588. [PMID: 28233976 DOI: 10.1021/acsami.6b16783] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Well-designed scaffolds provide appropriate niches that can effectively recruit host cells and induce differentiation of recruited cells into the desired cell types, facilitating in situ tissue regeneration. Here we report a tissue-specific extracellular matrix (ECM) hydrogel composed of adipose-derived soluble ECM (sECM) and methylcellulose (MC) as a cell-free scaffold system for adipose tissue regeneration. The sECM-MC hydrogels showed a thermosensitive sol-gel phase transition and rapidly formed a soft hydrogel with a stiffness of 3.8 kPa at body temperature. An in vivo study showed that the sECM-MC hydrogel facilitated the infiltration of host cell populations, particularly adipose-derived stem cells (ASCs) and adipose tissue macrophages (ATMs) that directly contribute to the adipose tissue regeneration. Moreover, the hydrogel significantly enhanced host-derived adipogenesis and angiogenesis without exogenous cells or bioactive molecules. Our results indicate that the sECM-MC hydrogels provide mechanical and biochemical cues for host-derived adipose regeneration. Overall, the sECM-MC hydrogels are a highly promising cell-free therapeutic approach for in situ adipose tissue regeneration.
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Affiliation(s)
- Jun Sung Kim
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Ji Suk Choi
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Yong Woo Cho
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
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17
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Kim JD, Jung YJ, Woo CH, Choi YC, Choi JS, Cho YW. Thermo-responsive human α-elastin self-assembled nanoparticles for protein delivery. Colloids Surf B Biointerfaces 2017; 149:122-129. [DOI: 10.1016/j.colsurfb.2016.10.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/09/2016] [Accepted: 10/06/2016] [Indexed: 11/17/2022]
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18
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Shafiq M, Kim SH. Biomaterials for host cell recruitment and stem cell fate modulation for tissue regeneration: Focus on neuropeptide substance P. Macromol Res 2016. [DOI: 10.1007/s13233-016-4134-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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Kim EJ, Choi JS, Kim JS, Choi YC, Cho YW. Injectable and Thermosensitive Soluble Extracellular Matrix and Methylcellulose Hydrogels for Stem Cell Delivery in Skin Wounds. Biomacromolecules 2015; 17:4-11. [PMID: 26607961 DOI: 10.1021/acs.biomac.5b01566] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Extracellular matrix (ECM) provides structural support and biochemical cues for tissue development and regeneration. Here we report a thermosensitive hydrogel composed of soluble ECM (sECM) and methylcellulose (MC) for injectable stem cell delivery. The sECM was prepared by denaturing solid ECM extracted from human adipose tissue and then blended with a MC solution. At low temperatures, the sECM-MC solution displayed a viscous solution state in which the loss modulus (G″) was predominant over the storage modulus (G'). With increasing temperature, G' increased dramatically and eventually exceeded G″ around 34 °C, characteristic of the transition from a liquid-like state to an elastic gel-like state. After a single injection of the stem cell-embedded hydrogel in full thickness cutaneous wound, the wound healed rapidly through re-epithelialization and neovascularization with minimum scar formation. The overall results suggest that in-situ-forming sECM-MC hydrogels are a promising injectable vehicle for stem cell delivery and tissue regeneration.
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Affiliation(s)
- Eun Ji Kim
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Ji Suk Choi
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Jun Sung Kim
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Young Chan Choi
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
| | - Yong Woo Cho
- Department of Chemical Engineering, Hanyang University , Ansan, Gyeonggi-do 426-791, Republic of Korea
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