1
|
Diedrich AM, Daneshgar A, Tang P, Klein O, Mohr A, Onwuegbuchulam OA, von Rueden S, Menck K, Bleckmann A, Juratli MA, Becker F, Sauer IM, Hillebrandt KH, Pascher A, Struecker B. Proteomic analysis of decellularized mice liver and kidney extracellular matrices. J Biol Eng 2024; 18:17. [PMID: 38389090 PMCID: PMC10885605 DOI: 10.1186/s13036-024-00413-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 02/07/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND The extracellular matrix (ECM) is a three-dimensional network of proteins that encases and supports cells within a tissue and promotes physiological and pathological cellular differentiation and functionality. Understanding the complex composition of the ECM is essential to decrypt physiological processes as well as pathogenesis. In this context, the method of decellularization is a useful technique to eliminate cellular components from tissues while preserving the majority of the structural and functional integrity of the ECM. RESULTS In this study, we employed a bottom-up proteomic approach to elucidate the intricate network of proteins in the decellularized extracellular matrices of murine liver and kidney tissues. This approach involved the use of a novel, perfusion-based decellularization protocol to generate acellular whole organ scaffolds. Proteomic analysis of decellularized mice liver and kidney ECM scaffolds revealed tissue-specific differences in matrisome composition, while we found a predominantly stable composition of the core matrisome, consisting of collagens, glycoproteins, and proteoglycans. Liver matrisome analysis revealed unique proteins such as collagen type VI alpha-6, fibrillin-2 or biglycan. In the kidney, specific ECM-regulators such as cathepsin z were detected. CONCLUSION The identification of distinct proteomic signatures provides insights into how different matrisome compositions might influence the biological properties of distinct tissues. This experimental workflow will help to further elucidate the proteomic landscape of decellularized extracellular matrix scaffolds of mice in order to decipher complex cell-matrix interactions and their contribution to a tissue-specific microenvironment.
Collapse
Affiliation(s)
- Anna-Maria Diedrich
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
| | - Assal Daneshgar
- Department of Surgery, Charité Mitte | Campus Virchow-Klinikum, Charité -Universitaetsmedizin Berlin, Campus, 13353, Berlin, Germany
- Berlin Institute of Health at Charité - Universitaetsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, Charitéplatz 1, 10117, Berlin, Germany
| | - Peter Tang
- Department of Surgery, Charité Mitte | Campus Virchow-Klinikum, Charité -Universitaetsmedizin Berlin, Campus, 13353, Berlin, Germany
| | - Oliver Klein
- Berlin Institute of Health at Charité - Universitaetsmedizin Berlin, Core Facility Imaging Mass Spectrometry, 13353, Berlin, Germany
| | - Annika Mohr
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
| | - Olachi A Onwuegbuchulam
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
| | - Sabine von Rueden
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
| | - Kerstin Menck
- Department of Medicine A for Hematology, Oncology, Hemostaseology and Pneumology, University Hospital Muenster, 48149, Muenster, Germany
- West German Cancer Center, University Hospital Muenster, 48149, Muenster, Germany
| | - Annalen Bleckmann
- Department of Medicine A for Hematology, Oncology, Hemostaseology and Pneumology, University Hospital Muenster, 48149, Muenster, Germany
- West German Cancer Center, University Hospital Muenster, 48149, Muenster, Germany
| | - Mazen A Juratli
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
- West German Cancer Center, University Hospital Muenster, 48149, Muenster, Germany
| | - Felix Becker
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
- West German Cancer Center, University Hospital Muenster, 48149, Muenster, Germany
| | - Igor M Sauer
- Department of Surgery, Charité Mitte | Campus Virchow-Klinikum, Charité -Universitaetsmedizin Berlin, Campus, 13353, Berlin, Germany
| | - Karl H Hillebrandt
- Department of Surgery, Charité Mitte | Campus Virchow-Klinikum, Charité -Universitaetsmedizin Berlin, Campus, 13353, Berlin, Germany
- Berlin Institute of Health at Charité - Universitaetsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, Charitéplatz 1, 10117, Berlin, Germany
| | - Andreas Pascher
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany
- West German Cancer Center, University Hospital Muenster, 48149, Muenster, Germany
| | - Benjamin Struecker
- Department of General, Visceral, and Transplant Surgery, University Hospital Muenster, 48149, Muenster, Germany.
- West German Cancer Center, University Hospital Muenster, 48149, Muenster, Germany.
| |
Collapse
|
2
|
Sinha D, Nagy-Mehesz A, Simionescu D, Mayer JE, Vyavahare N. Pentagalloyl glucose-stabilized decellularized bovine jugular vein valved conduits as pulmonary conduit replacement. Acta Biomater 2023; 170:97-110. [PMID: 37619898 PMCID: PMC10592392 DOI: 10.1016/j.actbio.2023.08.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/17/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
Congenital heart diseases (CHD) are one of the most frequently diagnosed congenital disorders, affecting approximately 40,000 live births annually in the United States. Out of the new patients diagnosed with CHD yearly, an estimated 2,500 patients require a substitute, non-native conduit artery to replace structures congenitally absent or hypoplastic. Devices used for conduit replacement encounter limitations exhibiting varying degrees of stiffness, calcification, susceptibility to infection, thrombosis, and a lack of implant growth capacity. Here, we report the functionality of pentagalloyl glucose (PGG) stabilized decellularized valved bovine jugular vein conduit (PGG-DBJVC). The PGG-DBJVC tissues demonstrated mechanical properties comparable to native and glutaraldehyde fixed tissues, while exhibiting resistance to both collagenase and elastase enzymatic degradation. Subcutaneous implantation of tissues established their biocompatibility and resistance to calcification, while implantation in sheep in the pulmonary position demonstrated adequate implant functionality, and repopulation of host cells, without excessive inflammation. In conclusion, this PGG-DBJVC device could be a favorable replacement option for pediatric patients, reducing the need for reoperations required with current devices. STATEMENT OF SIGNIFICANCE: Congenital Heart Disease (CHD) is a common congenital disorder affecting many newborns in the United States each year. The use of substitute conduit arteries is necessary for some patients with CHD who have missing or underdeveloped structures. Current conduit replacement devices have limitations, including stiffness, susceptibility to infection and thrombosis, and lack of implant growth capacity. Pentagalloyl glucose-stabilized bovine jugular vein valved tissue (PGG-DBJVC) offers a promising solution as it is resistant to calcification, and biocompatible. When implanted in rats and as pulmonary conduit replacement in sheep, the PGG-DBJVC demonstrated cellular infiltration without excessive inflammation, which could lead to remodeling and integration with host tissue and eliminate the need for replacement as the child grows.
Collapse
Affiliation(s)
- Dipasha Sinha
- Department of Bioengineering, College of Engineering, Computing and Applied Sciences, Clemson University, Clemson, South Carolina 29634, USA
| | - Agnes Nagy-Mehesz
- Department of Bioengineering, College of Engineering, Computing and Applied Sciences, Clemson University, Clemson, South Carolina 29634, USA
| | - Dan Simionescu
- Department of Bioengineering, College of Engineering, Computing and Applied Sciences, Clemson University, Clemson, South Carolina 29634, USA
| | - John E Mayer
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, Massachusetts; Department of Surgery, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Naren Vyavahare
- Department of Bioengineering, College of Engineering, Computing and Applied Sciences, Clemson University, Clemson, South Carolina 29634, USA.
| |
Collapse
|
3
|
Mungenast L, Nieminen R, Gaiser C, Faia-Torres AB, Rühe J, Suter-Dick L. Electrospun decellularized extracellular matrix scaffolds promote the regeneration of injured neurons. Biomater Biosyst 2023; 11:100081. [PMID: 37427248 PMCID: PMC10329103 DOI: 10.1016/j.bbiosy.2023.100081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/23/2023] [Accepted: 06/17/2023] [Indexed: 07/11/2023] Open
Abstract
Traumatic injury to the spinal cord (SCI) causes the transection of neurons, formation of a lesion cavity, and remodeling of the microenvironment by excessive extracellular matrix (ECM) deposition and scar formation leading to a regeneration-prohibiting environment. Electrospun fiber scaffolds have been shown to simulate the ECM and increase neural alignment and neurite outgrowth contributing to a growth-permissive matrix. In this work, electrospun ECM-like fibers providing biochemical and topological cues are implemented into a scaffold to represent an oriented biomaterial suitable for the alignment and migration of neural cells in order to improve spinal cord regeneration. The successfully decellularized spinal cord ECM (dECM), with no visible cell nuclei and dsDNA content < 50 ng/mg tissue, showed preserved ECM components, such as glycosaminoglycans and collagens. Serving as the biomaterial for 3D printer-assisted electrospinning, highly aligned and randomly distributed dECM fiber scaffolds (< 1 µm fiber diameter) were fabricated. The scaffolds were cytocompatible and supported the viability of a human neural cell line (SH-SY5Y) for 14 days. Cells were selectively differentiated into neurons, as confirmed by immunolabeling of specific cell markers (ChAT, Tubulin ß), and followed the orientation given by the dECM scaffolds. After generating a lesion site on the cell-scaffold model, cell migration was observed and compared to reference poly-ε-caprolactone fiber scaffolds. The aligned dECM fiber scaffold promoted the fastest and most efficient lesion closure, indicating superior cell guiding capabilities of dECM-based scaffolds. The strategy of combining decellularized tissues with controlled deposition of fibers to optimize biochemical and topographical cues opens the way for clinically relevant central nervous system scaffolding solutions.
Collapse
Affiliation(s)
- Lena Mungenast
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Ronya Nieminen
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Carine Gaiser
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Ana Bela Faia-Torres
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
| | - Jürgen Rühe
- Department of Microsystems Engineering, IMTEK, University of Freiburg, Freiburg 79110, Germany
| | - Laura Suter-Dick
- Institute for Chemistry and Bioanalytics, University of Applied Sciences FHNW, Hofackerstrasse 30, Muttenz 4132, Switzerland
- SCAHT: Swiss Centre for Applied Human Toxicology, Missionsstrasse 64, Basel 4055, Switzerland
| |
Collapse
|
4
|
Bahrami N, Bordbar S, Hasanzadeh E, Goodarzi A, Ai A, Mohamadnia A. The effect of decellularized cartilage matrix scaffolds combined with endometrial stem cell-derived osteocytes on osteochondral tissue engineering in rats. In Vitro Cell Dev Biol Anim 2022. [PMID: 35727496 DOI: 10.1007/s11626-022-00692-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 05/02/2022] [Indexed: 11/05/2022]
Abstract
Since decellularized tissues may offer the instructive niche for cell differentiation and function, their use as cell culture scaffolds is a promising approach for regenerative medicine. To repair osteochondral tissues, developing a scaffold with biomimetic structural, compositional, and functional characteristics is vital. As a result of their heterogeneous structure, decellularized articular cartilage matrix from allogeneic and xenogeneic sources are considered appropriate scaffolds for cartilage regeneration. We developed a scaffold for osteochondral tissue engineering by decellularizing sheep knee cartilage using a chemical technique. DNA content measurements and histological examinations revealed that this protocol completely removed cells from decellularized cartilage. Furthermore, SEM, MTS assay, and H&E staining revealed that human endometrial stem cells could readily adhere to the decellularized cartilage, and the scaffold was biocompatible for their proliferation. Besides, we discovered that decellularized scaffolds could promote EnSC osteogenic differentiation by increasing bone-specific gene expression. Further, it was found that decellularized scaffolds were inductive for chondrogenic differentiation of stem cells, evidenced by an up-regulation in the expression of the cartilage-specific gene. Also, in vivo study showed the high affinity of acellularized scaffolds for cell adhesion and proliferation led to an improved regeneration of articular lesions in rats after 4 weeks. Finally, a perfect scaffold with high fidelity is provided by the developed decellularized cartilage scaffold for the functional reconstruction of osteochondral tissues; these types of scaffolds are helpful in studying how the tissue microenvironment supports osteocytes and chondrocytes differentiation, growth, and function to have a good osteochondral repair effect.
Collapse
|
5
|
Atluri K, Chinnathambi S, Mendenhall A, Martin JA, Sander EA, Salem AK. Targeting Cell Contractile Forces: A Novel Minimally Invasive Treatment Strategy for Fibrosis. Ann Biomed Eng 2020; 48:1850-1862. [PMID: 32236751 PMCID: PMC7286797 DOI: 10.1007/s10439-020-02497-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/23/2020] [Indexed: 10/24/2022]
Abstract
Fibrosis is a complication of tendon injury where excessive scar tissue accumulates in and around the injured tissue, leading to painful and restricted joint motion. Unfortunately, fibrosis tends to recur after surgery, creating a need for alternative approaches to disrupt scar tissue. We posited a strategy founded on mechanobiological principles that collagen under tension generated by fibroblasts is resistant to degradation by collagenases. In this study, we tested the hypothesis that blebbistatin, a drug that inhibits cellular contractile forces, would increase the susceptibility of scar tissue to collagenase degradation. Decellularized tendon scaffolds (DTS) were treated with bacterial collagenase with or without external or cell-mediated internal tension. External tension producing strains of 2-4% significantly reduced collagen degradation compared with non-tensioned controls. Internal tension exerted by human fibroblasts seeded on DTS significantly reduced the area of the scaffolds compared to acellular controls and inhibited collagen degradation compared to free-floating DTS. Treatment of cell-seeded DTS with 50 mM blebbistatin restored susceptibility to collagenase degradation, which was significantly greater than in untreated controls (p < 0.01). These findings suggest that therapies combining collagenases with drugs that reduce cell force generation should be considered in cases of tendon fibrosis that do not respond to physiotherapy.
Collapse
|
6
|
Zhang J, Li K, Kong F, Sun C, Zhang D, Yu X, Wang X, Li X, Liu T, Shao G, Guan Y, Zhao S. Induced Intermediate Mesoderm Combined with Decellularized Kidney Scaffolds for Functional Engineering Kidney. Tissue Eng Regen Med 2019; 16:501-512. [PMID: 31624705 DOI: 10.1007/s13770-019-00197-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 04/17/2019] [Accepted: 05/29/2019] [Indexed: 12/15/2022] Open
Abstract
Background Chronic kidney disease is a severe threat to human health with no ideal treatment strategy. Mature mammalian kidneys have a fixed number of nephrons, and regeneration is difficult once they are damaged. For this reason, developing an efficient approach to achieve kidney regeneration is necessary. The technology of the combination of decellularized kidney scaffolds with stem cells has emerged as a new strategy; however, in previous studies, the differentiation of stem cells in decellularized scaffolds was insufficient for functional kidney regeneration, and many problems remain. Methods We used 0.5% sodium dodecyl sulfate (SDS) to produce rat kidney decellularized scaffolds, and induce adipose-derived stem cells (ADSCs) into intermediate mesoderm by adding Wnt agonist CHIR99021 and FGF9 in vitro. The characteristics of decellularized scaffolds and intermediate mesoderm induced from adipose-derived stem cells were identified. The scaffolds were recellularized with ADSCs and intermediate mesoderm cells through the renal artery and ureter. After cocultured for 10 days, cells adhesion and differentiation was evaluated. Results Intermediate mesoderm cells were successfully induced from ADSCs and identified by immunofluorescence and Western blotting assays (OSR1 + , PAX2 +). Immunofluorescence showed that intermediate mesoderm cells differentiated into tubular-like (E-CAD + , GATA3 +) and podocyte-like (WT1 +) cells with higher differentiation efficiency than ADSCs in the decellularized scaffolds. Comparatively, this phenomenon was not observed in induced intermediate mesoderm cells cultured in vitro. Conclusion In this study, we demonstrated that intermediate mesoderm cells could be induced from ADSCs and that they could differentiate well after cocultured with decellularized scaffolds.
Collapse
Affiliation(s)
- Jianye Zhang
- 1Department of Urology, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Kailin Li
- 2Department of Central Research Lab, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Feng Kong
- 2Department of Central Research Lab, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China.,Key Laboratory for Kidney Regeneration of Shandong Province, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China.,4Shandong University- Karolinska Institutet Collaborative Laboratory for Stem Cell Research, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Chao Sun
- 2Department of Central Research Lab, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Denglu Zhang
- 5The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, 16369 Jingshi Road, Jinan, 250011 Shandong People's Republic of China
| | - Xin Yu
- 1Department of Urology, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Xuesheng Wang
- 1Department of Urology, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Xian Li
- 6The Second Hospital of Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Tongyan Liu
- 6The Second Hospital of Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Guangfeng Shao
- 1Department of Urology, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China
| | - Yong Guan
- 1Department of Urology, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China.,7Shandong Provincial Hospital of Shandong University, 324 Jingwuweiqi Road, Jinan, 250021 Shandong People's Republic of China
| | - Shengtian Zhao
- 1Department of Urology, The Second Hospital, Shandong University, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China.,Key Laboratory for Kidney Regeneration of Shandong Province, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China.,4Shandong University- Karolinska Institutet Collaborative Laboratory for Stem Cell Research, 247 Beiyuan Street, Jinan, 250033 Shandong People's Republic of China.,7Shandong Provincial Hospital of Shandong University, 324 Jingwuweiqi Road, Jinan, 250021 Shandong People's Republic of China
| |
Collapse
|
7
|
Ribeiro D, Kvist AJ, Wittung-Stafshede P, Hicks R, Forslöw A. 3D-Models of Insulin-Producing β-Cells: from Primary Islet Cells to Stem Cell-Derived Islets. Stem Cell Rev Rep 2018; 14:177-88. [PMID: 29181780 DOI: 10.1007/s12015-017-9783-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
There is a need for physiologically relevant assay platforms to provide functionally relevant models of diabetes, to accelerate the discovery of new treatment options and boost developments in drug discovery. In this review, we compare several 3D-strategies that have been used to increase the functional relevance of ex vivo human primary pancreatic islets and developments into the generation of stem cell derived pancreatic beta-cells (β-cells). Special attention will be given to recent approaches combining the use of extracellular matrix (ECM) scaffolds with pancreatic molecular memory, which can be used to improve yield and functionality of in vitro stem cell-derived pancreatic models. The ultimate goal is to develop scalable cell-based platforms for diabetes research and drug screening. This article will critically assess key aspects related to in vitro pancreatic 3D-ECM models and highlight the most promising approaches for future research.
Collapse
|
8
|
Abstract
The decellularized (DC) scaffolds retain three-dimensional structures for the stimulation of cell growth, with components of the extracellular matrix (ECM) relatively conserved between species. The strategy based on decellularized scaffolds provides a new way for organ regeneration, with a number of prominent advances having been reported in the past few years. While their lack of biomechanical strength and excessive degradation limit the clinical applications, therefore it is urgent to modify the DC scaffolds to improve the performance.In this article we describe a simple and robust modification protocol for DC rat kidney scaffolds. To modify, we perfuse DC rat kidneys with glutaraldehyde through the perfusion circulation of the decellularization. After cross-linking, kidney scaffolds are harvested for evaluation of histology, structural stability, and biocompatibility, involving water absorption testing, biomechanical testing, scanning electron microscopy, and several different histological and immunofluorescent analyses.
Collapse
Affiliation(s)
- Yaling Yu
- Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Li Liu
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - Jianse Zhang
- Anatomy Department, Wenzhou Medical University, Wenzhou, 325030, China
| | - Zairong Wei
- Department of Plastic Surgery, Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China.
| | - Jin Mei
- Anatomy Department, Wenzhou Medical University, Wenzhou, 325030, China.
| |
Collapse
|
9
|
Abstract
The extracellular matrix (ECM) retains three-dimensional structures for the stimulation of cell growth, with components of the ECM relatively conserved between species. Interest in the use of decellularized scaffold-based strategies for organ regeneration is increasing rapidly. Decellularized scaffolds derived from animal organs are a promising material for organ engineering, with a number of prominent advances having been reported in the past few years.In this article we describe a simple and robust methodology for generating decellularized rat kidneys. To obtain these scaffolds, we perfuse rat kidneys with detergents through the abdominal aorta. After decellularization, kidney scaffolds are harvested for evaluation of vascular structure and histology. Qualitative evaluation involves vascular corrosion casting, transmission electron microscopy, and several different histological and immunofluorescent methods. SDS residue levels are assessed by ultraviolet-visible spectrophotometer (UV-VIS).
Collapse
Affiliation(s)
- Mei Jin
- Anatomy Department & Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, 1210 Wenzhou University Town, Wenzhou, Zhejiang, 325035, China.
| | - Yu Yaling
- Anatomy Department & Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, 1210 Wenzhou University Town, Wenzhou, Zhejiang, 325035, China
| | - Wang Zhibin
- Anatomy Department & Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, 1210 Wenzhou University Town, Wenzhou, Zhejiang, 325035, China
| | - Zhang Jianse
- Anatomy Department & Institute of Bioscaffold Transplantation and Immunology, Wenzhou Medical University, 1210 Wenzhou University Town, Wenzhou, Zhejiang, 325035, China
| |
Collapse
|