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Kjar A, McFarland B, Mecham K, Harward N, Huang Y. Engineering of tissue constructs using coaxial bioprinting. Bioact Mater 2021; 6:460-471. [PMID: 32995673 PMCID: PMC7490764 DOI: 10.1016/j.bioactmat.2020.08.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/12/2020] [Accepted: 08/23/2020] [Indexed: 12/13/2022] Open
Abstract
Bioprinting is a rapidly developing technology for the precise design and manufacture of tissues in various biological systems or organs. Coaxial extrusion bioprinting, an emergent branch, has demonstrated a strong potential to enhance bioprinting's engineering versatility. Coaxial bioprinting assists in the fabrication of complex tissue constructs, by enabling concentric deposition of biomaterials. The fabricated tissue constructs started with simple, tubular vasculature but have been substantially developed to integrate complex cell composition and self-assembly, ECM patterning, controlled release, and multi-material gradient profiles. This review article begins with a brief overview of coaxial printing history, followed by an introduction of crucial engineering components. Afterward, we review the recent progress and untapped potential in each specific organ or biological system, and demonstrate how coaxial bioprinting facilitates the creation of tissue constructs. Ultimately, we conclude that this growing technology will contribute significantly to capabilities in the fields of in vitro modeling, pharmaceutical development, and clinical regenerative medicine.
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Affiliation(s)
- Andrew Kjar
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Bailey McFarland
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Keetch Mecham
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Nathan Harward
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
| | - Yu Huang
- Department of Biological Engineering, Utah State University, Logan, UT, 84322, USA
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Kajbafzadeh AM, Fendereski K, Khorramirouz R, Daryabari SS, Masoomi A, Moosavi S, Ataei M, Arshadi H. In vivo application of decellularized rat colon and evaluation of the engineered scaffolds following 9 months of follow-up. Cell Biol Int 2020; 44:2253-2262. [PMID: 32716102 DOI: 10.1002/cbin.11433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 07/22/2020] [Accepted: 07/25/2020] [Indexed: 12/14/2022]
Abstract
The aim of this study was to investigate the rat small intestine mesentery and colon as natural bio-reactors for rat colon-derived scaffolds. We decellularized eight whole rat colons by a perfusion-based protocol using 0.1% sodium dodecyl sulfate for 24 hr. The provided bio-scaffolds were examined by histological staining, scanning electron microscopy, and collagen and sulfated glycosaminoglycan quantification. Subsequently, we implanted 4 cm segments of the provided bio-scaffolds into two groups of animal models comprising tissue grafting into the mesenteric tissue (n: 10) and end-to-end anastomosis (n: 10) to the colon of host rats. Following 9 months of follow-up, we harvested the grafts and performed histological and immunohistochemical studies as well as real-time PCR evaluation for telomerase activity of the samples. Histological staining, scanning electron microscopy and protein content evaluation of the acellular tissues confirmed the complete removal of the cellular components and preservation of the extracellular matrix. Histopathological assessment of the implanted scaffolds was suggestive of a regenerative process in both groups. Moreover, immunohistochemical analysis of the samples confirmed the presence of smooth muscle cells, endothelial progenitor cells, and neural elements in both groups of grafted scaffolds. Our data confirmed the recellularization of the acellular colon grafts in both groups after 9 months of follow up. Also, the implanted tissues demonstrated different characteristics based on their implantation location. The outcomes of this investigation illustrate the capability of acellular tissues for in vivo application and regeneration.
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Affiliation(s)
- Abdol-Mohammad Kajbafzadeh
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kiarad Fendereski
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Khorramirouz
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Sima Daryabari
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Masoomi
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Moosavi
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahba Ataei
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamid Arshadi
- Pediatric Urology and Regenerative Medicine Research Center, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
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Identifying the Growth Factors for Improving Neointestinal Regeneration in Rats through Transcriptome Analysis Using RNA-Seq Data. BIOMED RESEARCH INTERNATIONAL 2019; 2018:4037865. [PMID: 30643803 PMCID: PMC6311312 DOI: 10.1155/2018/4037865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 09/26/2018] [Accepted: 10/09/2018] [Indexed: 11/17/2022]
Abstract
Using our novel surgical model of simultaneous intestinal adaptation "A" and neointestinal regeneration "N" conditions in individual rats to determine feasibility for research and clinical application, we further utilized next generation RNA sequencing (RNA-Seq) here in normal control tissue and both conditions ("A" and "N") across time to decipher transcriptome changes in neoregeneration and adaptation of intestinal tissue at weeks 1, 4, and 12. We also performed bioinformatics analyses to identify key growth factors for improving intestinal adaptation and neointestinal regeneration. Our analyses indicate several interesting phenomena. First, Gene Ontology and pathway analyses indicate that cell cycle and DNA replication processes are enhanced in week 1 "A"; however, in week 1 "N", many immune-related processes are involved. Second, we found some growth factors upregulated or downregulated especially in week 1 "N" versus "A". Third, based on each condition and time point versus normal control tissue, we found in week 1 "N" BMP2, BMP3, and NTF3 are significantly and specifically downregulated, indicating that the regenerative process may be inhibited in the absence of these growth factors. This study reveals complex growth factor regulation in small neointestinal regeneration and intestinal adaptation and provides potential applications in tissue engineering by introducing key growth factors identified here into the injury site.
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Denost Q, Adam JP, Pontallier A, Montembault A, Bareille R, Siadous R, Delmond S, Rullier E, David L, Bordenave L. Colorectal tissue engineering: A comparative study between porcine small intestinal submucosa (SIS) and chitosan hydrogel patches. Surgery 2015; 158:1714-23. [PMID: 26275832 DOI: 10.1016/j.surg.2015.06.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 05/14/2015] [Accepted: 06/03/2015] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Tissue engineering may provide new operative tools for colorectal surgery in elective indications. The aim of this study was to define a suitable bioscaffold for colorectal tissue engineering. METHODS We compared 2 bioscaffolds with in vitro and in vivo experiments: porcine small intestinal submucosa (SIS) versus chitosan hydrogel matrix. We assessed nontoxicity of the scaffold in vitro by using human adipose-derived stem cells (hADSC). In vivo, a 1 × 2-cm colonic wall defect was created in 16 rabbits. Animals were divided randomly into 2 groups according to the graft used, SIS or chitosan hydrogel. Graft area was explanted at 4 and 8 weeks. The end points of in vivo experiments were technical feasibility, behavior of the scaffold, in situ putative inflammatory effect, and the quality of tissue regeneration, in particular smooth muscle layer regeneration. RESULTS In vitro, hADSC attachment and proliferation occurred on both scaffolds without a substantial difference. After proliferation, hADSCs kept their mesenchymal stem cell characteristics. In vivo, one animal died in each group. Eight weeks after implantation, the chitosan scaffold allowed better wound healing compared with the SIS scaffold, with more effective control of inflammatory activity and an integral regeneration of the colonic wall including the smooth muscle cell layer. CONCLUSION The outcomes of in vitro experiments did not differ greatly between the 2 groups. Macroscopic and histologic findings, however, revealed better wound healing of the colonic wall in the chitosan group suggesting that the chitosan hydrogel could serve as a better scaffold for colorectal tissue engineering.
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Affiliation(s)
- Quentin Denost
- Department of Digestive Surgery, CHU de Bordeaux, University of Bordeaux, Bordeaux, France; Bioingénierie tissulaire, University of Bordeaux, Bordeaux, France; INSERM, Bioingenierie tissulaire, U1026, Bordeaux, France; CHU de Bordeaux, CIC 1401, Bordeaux, France.
| | - Jean-Philippe Adam
- Department of Digestive Surgery, CHU de Bordeaux, University of Bordeaux, Bordeaux, France; Bioingénierie tissulaire, University of Bordeaux, Bordeaux, France; INSERM, Bioingenierie tissulaire, U1026, Bordeaux, France
| | - Arnaud Pontallier
- Department of Digestive Surgery, CHU de Bordeaux, University of Bordeaux, Bordeaux, France; Bioingénierie tissulaire, University of Bordeaux, Bordeaux, France; INSERM, Bioingenierie tissulaire, U1026, Bordeaux, France
| | | | - Reine Bareille
- Bioingénierie tissulaire, University of Bordeaux, Bordeaux, France; INSERM, Bioingenierie tissulaire, U1026, Bordeaux, France
| | - Robin Siadous
- Bioingénierie tissulaire, University of Bordeaux, Bordeaux, France; INSERM, Bioingenierie tissulaire, U1026, Bordeaux, France
| | | | - Eric Rullier
- Department of Digestive Surgery, CHU de Bordeaux, University of Bordeaux, Bordeaux, France
| | - Laurent David
- Université de Lyon, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - Laurence Bordenave
- Bioingénierie tissulaire, University of Bordeaux, Bordeaux, France; INSERM, Bioingenierie tissulaire, U1026, Bordeaux, France; CHU de Bordeaux, CIC 1401, Bordeaux, France
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