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Elia E, Brownell D, Chabaud S, Bolduc S. Tissue Engineering for Gastrointestinal and Genitourinary Tracts. Int J Mol Sci 2022; 24:ijms24010009. [PMID: 36613452 PMCID: PMC9820091 DOI: 10.3390/ijms24010009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/10/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
The gastrointestinal and genitourinary tracts share several similarities. Primarily, these tissues are composed of hollow structures lined by an epithelium through which materials need to flow with the help of peristalsis brought by muscle contraction. In the case of the gastrointestinal tract, solid or liquid food must circulate to be digested and absorbed and the waste products eliminated. In the case of the urinary tract, the urine produced by the kidneys must flow to the bladder, where it is stored until its elimination from the body. Finally, in the case of the vagina, it must allow the evacuation of blood during menstruation, accommodate the male sexual organ during coitus, and is the natural way to birth a child. The present review describes the anatomy, pathologies, and treatments of such organs, emphasizing tissue engineering strategies.
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Affiliation(s)
- Elissa Elia
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
| | - David Brownell
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Québec, QC G1V 0A6, Canada
- Correspondence: ; Tel.: +1-418-525-4444 (ext. 42282)
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Evaluation of a Serum-Free Medium for Human Epithelial and Stromal Cell Culture. Int J Mol Sci 2022; 23:ijms231710035. [PMID: 36077429 PMCID: PMC9455993 DOI: 10.3390/ijms231710035] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/27/2022] [Accepted: 08/31/2022] [Indexed: 11/17/2022] Open
Abstract
Over the past decade, growing demand from many domains (research, cosmetics, pharmaceutical industries, etc.) has given rise to significant expansion of the number of in vitro cell cultures. Despite the widespread use of fetal bovine serum, many issues remain. Among them, the whole constitution of most serums remains unknown and is subject to significant variations. Furthermore, the presence of potential contamination and xenogeny elements is challenging for clinical applications, while limited production is an obstacle to the growing demand. To circumvent these issues, a Serum-Free Medium (SFM) has been developed to culture dermal and vesical fibroblasts and their corresponding epithelial cells, namely, keratinocytes and urothelial cells. To assess the impact of SFM on these cells, proliferation, clonogenic and metabolic assays have been compared over three passages to conditions associated with the use of a classic Fetal Bovine Serum-Containing Medium (FBSCM). The results showed that the SFM enabled fibroblast and epithelial cell proliferation while maintaining a morphology, cell size and metabolism similar to those of FBSCM. SFM has repeatedly been found to be better suited for epithelial cell proliferation and clonogenicity. Fibroblasts and epithelial cells also showed more significant mitochondrial metabolism in the SFM compared to the FBSCM condition. However, the SFM may need further optimization to improve fibroblast proliferation.
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Millet M, Bollmann E, Ringuette Goulet C, Bernard G, Chabaud S, Huot MÉ, Pouliot F, Bolduc S, Bordeleau F. Cancer-Associated Fibroblasts in a 3D Engineered Tissue Model Induce Tumor-like Matrix Stiffening and EMT Transition. Cancers (Basel) 2022; 14:cancers14153810. [PMID: 35954473 PMCID: PMC9367573 DOI: 10.3390/cancers14153810] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The physical properties of a tumor, such as stiffness, are important drivers of tumor progression. However, current in vitro tumor models fail to recapitulate the full range of physical properties observed in solid tumors. Here, we proposed a 3D self-assembly engineered bladder model using cancer-associated fibroblasts in which stromal cells produce their extracellular matrix. We then proceeded to assess how our model recapitulates biological and mechanical features found in tumors. We confirmed that stroma assembled by cancer-associated fibroblasts have increased extracellular matrix content and display increased remodeling and higher stiffness. Moreover, normal urothelial cells seeded on the tumor model displayed a mechanotransduction response, increased cell proliferation, cell infiltration within stroma, and displayed features of the epithelial-to-mesenchymal transition. Altogether, we demonstrated that our cancer-associated fibroblast-derived tumor stroma recapitulates several biological and physical features expected from a tumor-like environment and, thus, provides the basis for more accurate cancer models. Abstract A tumor microenvironment is characterized by its altered mechanical properties. However, most models remain unable to faithfully recreate the mechanical properties of a tumor. Engineered models based on the self-assembly method have the potential to better recapitulate the stroma architecture and composition. Here, we used the self-assembly method based on a bladder tissue model to engineer a tumor-like environment. The tissue-engineered tumor models were reconstituted from stroma-derived healthy primary fibroblasts (HFs) induced into cancer-associated fibroblast cells (iCAFs) along with an urothelium overlay. The iCAFs-derived extracellular matrix (ECM) composition was found to be stiffer, with increased ECM deposition and remodeling. The urothelial cells overlaid on the iCAFs-derived ECM were more contractile, as measured by quantitative polarization microscopy, and displayed increased YAP nuclear translocation. We further showed that the proliferation and expression of epithelial-to-mesenchymal transition (EMT) marker in the urothelial cells correlate with the increased stiffness of the iCAFs-derived ECM. Our data showed an increased expression of EMT markers within the urothelium on the iCAFs-derived ECM. Together, our results demonstrate that our tissue-engineered tumor model can achieve stiffness levels comparable to that of a bladder tumor, while triggering a tumor-like response from the urothelium.
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Affiliation(s)
- Martial Millet
- CHU de Québec-Université Laval Research Center (Oncology Division) and Université Laval Cancer Research Center, Quebec City, QC G1R 3S3, Canada
| | - Enola Bollmann
- CHU de Québec-Université Laval Research Center (Oncology Division) and Université Laval Cancer Research Center, Quebec City, QC G1R 3S3, Canada
| | - Cassandra Ringuette Goulet
- CHU de Québec-Université Laval Research Center (Oncology Division) and Université Laval Cancer Research Center, Quebec City, QC G1R 3S3, Canada
- CHU de Québec-Université Laval Research Center (Regenerative Medicine Division), Quebec City, QC G1V 4G2, Canada
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Université Laval, Quebec City, QC G1J 1Z4, Canada
| | - Geneviève Bernard
- CHU de Québec-Université Laval Research Center (Regenerative Medicine Division), Quebec City, QC G1V 4G2, Canada
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Université Laval, Quebec City, QC G1J 1Z4, Canada
| | - Stéphane Chabaud
- CHU de Québec-Université Laval Research Center (Regenerative Medicine Division), Quebec City, QC G1V 4G2, Canada
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Université Laval, Quebec City, QC G1J 1Z4, Canada
| | - Marc-Étienne Huot
- CHU de Québec-Université Laval Research Center (Oncology Division) and Université Laval Cancer Research Center, Quebec City, QC G1R 3S3, Canada
- Department of Molecular Biology, Medical Biochemistry and Pathology, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Frédéric Pouliot
- CHU de Québec-Université Laval Research Center (Oncology Division) and Université Laval Cancer Research Center, Quebec City, QC G1R 3S3, Canada
- Department of Surgery, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Stéphane Bolduc
- CHU de Québec-Université Laval Research Center (Regenerative Medicine Division), Quebec City, QC G1V 4G2, Canada
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Université Laval, Quebec City, QC G1J 1Z4, Canada
- Department of Surgery, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - François Bordeleau
- CHU de Québec-Université Laval Research Center (Oncology Division) and Université Laval Cancer Research Center, Quebec City, QC G1R 3S3, Canada
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Université Laval, Quebec City, QC G1J 1Z4, Canada
- Department of Molecular Biology, Medical Biochemistry and Pathology, Université Laval, Quebec City, QC G1V 0A6, Canada
- Correspondence: ; Tel.: +1-418-525-4444 (ext. 15554)
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Chabaud S, Pellerin È, Caneparo C, Ringuette‑goulet C, Pouliot F, Bolduc S. Bladder cancer cell lines adapt their aggressiveness profile to oxygen tension. Oncol Lett 2022; 24:220. [PMID: 35720486 PMCID: PMC9178683 DOI: 10.3892/ol.2022.13341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 11/05/2021] [Indexed: 11/21/2022] Open
Abstract
During the process of tumor growth, cancer cells will be subjected to intermittent hypoxia. This results from the delay in the development of the vascular network in relation to the proliferation of cancer cells. The hypoxic nature of a tumor has been demonstrated as a negative factor for patient survival. To evaluate the impact of hypoxia on the survival and migration properties of low and high-grade bladder cancer cell lines, two low-grade (MGHU-3 and SW-780) and two high-grade (SW-1710 and T24) bladder cancer cell lines were cultured in normoxic (20% O2) or hypoxic atmospheric conditions (2% O2). The response of bladder cancer cell lines to hypoxic atmospheric cell culture conditions was examined under several parameters, including epithelial-mesenchymal transition, doubling time and metabolic activities, thrombospondin-1 expression, whole Matrix Metallo-Proteinase activity, migration and resistance to oxidative stress. The low-grade cell line response to hypoxia was heterogeneous even if it tended to adopt a more aggressive profile. Hypoxia enhanced migration and pro-survival properties of MGHU-3 cells, whereas these features were reduced for the SW-780 cell line cultured under low oxygen tension. The responses of tested high-grade cell lines were more homogeneous and tended to adopt a less aggressive profile. Hypoxia drastically changed some of the bladder cancer cell line properties, for example matrix metalloproteinases expression for all cancer cells but also switch in glycolytic metabolism of low grade cancer cells. Overall, studying bladder cancer cells in hypoxic environments are relevant for the translation from in vitro findings to in vivo context.
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Affiliation(s)
- Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale (Experimental Organogenesis Research Center)/LOEX, Regenerative Medicine Division, CHU de Québec‑Laval University Research Center, Enfant‑Jésus Hospital, Quebec, QC G1J 1Z4, Canada
| | - Ève Pellerin
- Centre de Recherche en Organogénèse Expérimentale (Experimental Organogenesis Research Center)/LOEX, Regenerative Medicine Division, CHU de Québec‑Laval University Research Center, Enfant‑Jésus Hospital, Quebec, QC G1J 1Z4, Canada
| | - Christophe Caneparo
- Centre de Recherche en Organogénèse Expérimentale (Experimental Organogenesis Research Center)/LOEX, Regenerative Medicine Division, CHU de Québec‑Laval University Research Center, Enfant‑Jésus Hospital, Quebec, QC G1J 1Z4, Canada
| | - Cassandra Ringuette‑goulet
- Centre de Recherche en Organogénèse Expérimentale (Experimental Organogenesis Research Center)/LOEX, Regenerative Medicine Division, CHU de Québec‑Laval University Research Center, Enfant‑Jésus Hospital, Quebec, QC G1J 1Z4, Canada
| | - Frédéric Pouliot
- Department of Surgery, Faculty of Medicine, Laval University, Quebec, QC G1V 4G2, Canada
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale (Experimental Organogenesis Research Center)/LOEX, Regenerative Medicine Division, CHU de Québec‑Laval University Research Center, Enfant‑Jésus Hospital, Quebec, QC G1J 1Z4, Canada
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Pellerin FA, Caneparo C, Pellerin È, Chabaud S, Pelletier M, Bolduc S. Heat-Inactivation of Fetal and Newborn Sera Did Not Impair the Expansion and Scaffold Engineering Potentials of Fibroblasts. Bioengineering (Basel) 2021; 8:bioengineering8110184. [PMID: 34821750 PMCID: PMC8615100 DOI: 10.3390/bioengineering8110184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022] Open
Abstract
Heat inactivation of bovine sera is routinely performed in cell culture laboratories. Nevertheless, it remains debatable whether it is still necessary due to the improvement of the production process of bovine sera. Do the benefits balance the loss of many proteins, such as hormones and growth factors, that are very useful for cell culture? This is even truer in the case of tissue engineering, the processes of which is often very demanding. This balance is examined here, from nine populations of fibroblasts originating from three different organs, by comparing the capacity of adhesion and proliferation of cells, their metabolism, and the capacity to produce the stroma; their histological appearance, thickness, and mechanical properties were also evaluated. Overall, serum inactivation does not appear to provide a significant benefit.
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Affiliation(s)
- Félix-Antoine Pellerin
- Department of Microbiology, Faculté de Sciences et Génie, Université Laval, Québec, QC G1V 0A6, Canada;
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Christophe Caneparo
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Ève Pellerin
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Martin Pelletier
- Infectious and Immune Disease Division, CHU de Québec-Université Laval Research Center, Québec, QC G1V 0A6, Canada;
- Department of Microbiology-Infectious Diseases and Immunology, Faculty of Medicine, Laval University, Québec, QC G1V 0A6, Canada
- ARThrite Research Center, Laval University, Québec, QC G1V 4G2, Canada
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
- Division of Urology, Department of Surgery, CHU de Québec-Université Laval, Québec, QC G1V 4G2, Canada
- Correspondence: ; Tel.: +1-418-990-8255
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Caneparo C, Sorroza-Martinez L, Chabaud S, Fradette J, Bolduc S. Considerations for the clinical use of stem cells in genitourinary regenerative medicine. World J Stem Cells 2021; 13:1480-1512. [PMID: 34786154 PMCID: PMC8567446 DOI: 10.4252/wjsc.v13.i10.1480] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/12/2021] [Accepted: 09/17/2021] [Indexed: 02/06/2023] Open
Abstract
The genitourinary tract can be affected by several pathologies which require repair or replacement to recover biological functions. Current therapeutic strategies are challenged by a growing shortage of adequate tissues. Therefore, new options must be considered for the treatment of patients, with the use of stem cells (SCs) being attractive. Two different strategies can be derived from stem cell use: Cell therapy and tissue therapy, mainly through tissue engineering. The recent advances using these approaches are described in this review, with a focus on stromal/mesenchymal cells found in adipose tissue. Indeed, the accessibility, high yield at harvest as well as anti-fibrotic, immunomodulatory and proangiogenic properties make adipose-derived stromal/SCs promising alternatives to the therapies currently offered to patients. Finally, an innovative technique allowing tissue reconstruction without exogenous material, the self-assembly approach, will be presented. Despite advances, more studies are needed to translate such approaches from the bench to clinics in urology. For the 21st century, cell and tissue therapies based on SCs are certainly the future of genitourinary regenerative medicine.
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Affiliation(s)
- Christophe Caneparo
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Quebec G1J1Z4, Canada
| | - Luis Sorroza-Martinez
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Quebec G1J1Z4, Canada
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Quebec G1J1Z4, Canada
| | - Julie Fradette
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Quebec G1J1Z4, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec G1V0A6, Canada
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Quebec G1J1Z4, Canada
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec G1V0A6, Canada
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Liu C, Zhou J, Li Y, Lu Y, Lu H, Wei W, Wu M, Yi X. Urine-based regenerative RNA biomarkers for urinary bladder wound healing. Regen Med 2021; 16:709-718. [PMID: 34334016 DOI: 10.2217/rme-2021-0057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: This study aimed to investigate the expression of regeneration-related genes in canine urine during bladder repair. Materials & methods: Canine urine samples were collected after partial cystectomy. Regenerative mRNA of hypoxia-inducible factor (HIF), vascular endothelial growth factor (VEGF), key stem cell transcription factors and cholinergic signals were detected. Results: HIF-1α, VEGF, CD44, IL-6 and prominin-1 expression in canine urine after partial cystectomy exhibited two similar peaks at ∼2 weeks. HIF-1α and VEGF expression were higher in the afternoon than the morning. The expression of key stem cell transcription factors and cholinergic signals also exhibited a rhythm along with bladder healing. Conclusions: The expression of HIF-1α, VEGF, key stem cell transcription factors and cholinergic signals exhibited a time curve distribution during canine bladder healing. The expression trend of some regenerative genes was similar during bladder healing, and a cooperative effect may exist.
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Affiliation(s)
- Chanzhen Liu
- GuangxiMedical University Cancer Hospital & Guangxi Cancer Research Institute, Nanning, 530021, PR China
| | - Juan Zhou
- GuangxiMedical University Cancer Hospital & Guangxi Cancer Research Institute, Nanning, 530021, PR China
| | - You Li
- Life Science Institute of East China Normal University, Shanghai, 200241, PR China
| | - Yulei Lu
- GuangxiMedical University Cancer Hospital & Guangxi Cancer Research Institute, Nanning, 530021, PR China
| | - Haoyuan Lu
- GuangxiMedical University Cancer Hospital & Guangxi Cancer Research Institute, Nanning, 530021, PR China
| | - Wei Wei
- GuangxiMedical University Cancer Hospital & Guangxi Cancer Research Institute, Nanning, 530021, PR China
| | - Mingsong Wu
- School of Stomatology, Zunyi Medical University, Zunyi, 563006, PR China.,Special Key Laboratory of Oral Disease Research of Higher Education Institution of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou, 563000, PR China
| | - Xianlin Yi
- GuangxiMedical University Cancer Hospital & Guangxi Cancer Research Institute, Nanning, 530021, PR China
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Sharma K, Thacker VV, Dhar N, Clapés Cabrer M, Dubois A, Signorino-Gelo F, Mullenders J, Knott GW, Clevers H, McKinney JD. Early invasion of the bladder wall by solitary bacteria protects UPEC from antibiotics and neutrophil swarms in an organoid model. Cell Rep 2021; 36:109351. [PMID: 34289360 DOI: 10.1016/j.celrep.2021.109351] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 03/26/2021] [Accepted: 06/15/2021] [Indexed: 01/24/2023] Open
Abstract
Recurrence of uropathogenic Escherichia coli (UPEC) infections has been attributed to reactivation of quiescent intracellular reservoirs (QIRs) in deep layers of the bladder wall. QIRs are thought to arise late during infection following dispersal of bacteria from intracellular bacterial communities (IBCs) in superficial umbrella cells. Here, we track the formation of QIR-like bacteria in a bladder organoid model that recapitulates the stratified uroepithelium within a volume suitable for high-resolution live-cell imaging. Bacteria injected into the organoid lumen enter umbrella-like cells and proliferate to form IBC-like bodies. In parallel, single bacteria penetrate deeper layers of the organoid wall, where they localize within or between uroepithelial cells. These "solitary" bacteria evade killing by antibiotics and neutrophils and are morphologically distinct from bacteria in IBCs. We conclude that bacteria with QIR-like properties may arise at early stages of infection, independent of IBC formation and rupture.
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Affiliation(s)
- Kunal Sharma
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Vivek V Thacker
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland.
| | - Neeraj Dhar
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland.
| | - Maria Clapés Cabrer
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Anaëlle Dubois
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - François Signorino-Gelo
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Jasper Mullenders
- Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, Utrecht, the Netherlands
| | - Graham W Knott
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Hans Clevers
- Oncode Institute, Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences and University Medical Center, Utrecht, the Netherlands
| | - John D McKinney
- School of Life Sciences, Swiss Federal Institute of Technology in Lausanne (EPFL), 1015 Lausanne, Switzerland.
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Genitourinary Tissue Engineering: Reconstruction and Research Models. Bioengineering (Basel) 2021; 8:bioengineering8070099. [PMID: 34356206 PMCID: PMC8301202 DOI: 10.3390/bioengineering8070099] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/28/2021] [Accepted: 07/06/2021] [Indexed: 01/15/2023] Open
Abstract
Tissue engineering is an emerging field of research that initially aimed to produce 3D tissues to bypass the lack of adequate tissues for the repair or replacement of deficient organs. The basis of tissue engineering protocols is to create scaffolds, which can have a synthetic or natural origin, seeded or not with cells. At the same time, more and more studies have indicated the low clinic translation rate of research realised using standard cell culture conditions, i.e., cells on plastic surfaces or using animal models that are too different from humans. New models are needed to mimic the 3D organisation of tissue and the cells themselves and the interaction between cells and the extracellular matrix. In this regard, urology and gynaecology fields are of particular interest. The urethra and vagina can be sites suffering from many pathologies without currently adequate treatment options. Due to the specific organisation of the human urethral/bladder and vaginal epithelium, current research models remain poorly representative. In this review, the anatomy, the current pathologies, and the treatments will be described before focusing on producing tissues and research models using tissue engineering. An emphasis is made on the self-assembly approach, which allows tissue production without the need for biomaterials.
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Abstract
Tissue engineering is one of the most promising scientific breakthroughs of the late 20th century. Its objective is to produce in vitro tissues or organs to repair and replace damaged ones using various techniques, biomaterials, and cells. Tissue engineering emerged to substitute the use of native autologous tissues, whose quantities are sometimes insufficient to correct the most severe pathologies. Indeed, the patient’s health status, regulations, or fibrotic scars at the site of the initial biopsy limit their availability, especially to treat recurrence. This new technology relies on the use of biomaterials to create scaffolds on which the patient’s cells can be seeded. This review focuses on the reconstruction, by tissue engineering, of two types of tissue with tubular structures: vascular and urological grafts. The emphasis is on self-assembly methods which allow the production of tissue/organ substitute without the use of exogenous material, with the patient’s cells producing their own scaffold. These continuously improved techniques, which allow rapid graft integration without immune rejection in the treatment of severely burned patients, give hope that similar results will be observed in the vascular and urological fields.
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11
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Paramitha D, Chabaud S, Bolduc S, Hermawan H. Biological Assessment of Zn-Based Absorbable Metals for Ureteral Stent Applications. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E3325. [PMID: 31614757 PMCID: PMC6829415 DOI: 10.3390/ma12203325] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/01/2019] [Accepted: 10/09/2019] [Indexed: 01/02/2023]
Abstract
The use of ureteral stents to relieve urinary tract obstruction is still challenged by the problems of infection, encrustation, and compression, leading to the need for early removal procedures. Biodegradable ureteral stents, commonly made of polymers, have been proposed to overcome these problems. Recently, absorbable metals have been considered as potential materials offering both biodegradation and strength. This work proposed zinc-based absorbable metals by firstly evaluating their cytocompatibility toward normal primary human urothelial cells using 2D and 3D assays. In the 2D assay, the cells were exposed to different concentrations of metal extracts (i.e., 10 mg/mL of Zn-1Mg and 8.75 mg/mL of Zn-0.5Al) for up to 3 days and found that their cytoskeletal networks were affected but were recovered at day 3, as observed by immunofluorescence. In the 3D ureteral wall tissue construct, the cells formed a multilayered urothelium, as found in native tissue, with the presence of tight junctions at the superficial layer and laminin at the basal layer, indicating a healthy tissue condition even with the presence of the metal samples for up to 7 days of exposure. The basal cells attached to the metal surface as seen in a natural spreading state with pseudopodia and fusiform morphologies, indicating that the metals were non-toxic.
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Affiliation(s)
- Devi Paramitha
- Department of Mining, Metallurgical and Materials Engineering & CHU de Québec Research Center, Laval University, Quebec City, QC G1V 0A6, Canada.
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Laval University, Quebec City, QC G1J 1Z4, Canada.
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Laval University, Quebec City, QC G1J 1Z4, Canada.
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Division of Regenerative Medicine, CHU de Québec Research Center, Laval University, Quebec City, QC G1J 1Z4, Canada.
| | - Hendra Hermawan
- Department of Mining, Metallurgical and Materials Engineering & CHU de Québec Research Center, Laval University, Quebec City, QC G1V 0A6, Canada.
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Bouhout S, Chabaud S, Bolduc S. Collagen hollow structure for bladder tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:228-237. [DOI: 10.1016/j.msec.2019.04.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 04/13/2019] [Accepted: 04/16/2019] [Indexed: 01/03/2023]
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Engineering Tissues without the Use of a Synthetic Scaffold: A Twenty-Year History of the Self-Assembly Method. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5684679. [PMID: 29707571 PMCID: PMC5863296 DOI: 10.1155/2018/5684679] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 01/29/2018] [Accepted: 02/05/2018] [Indexed: 12/15/2022]
Abstract
Twenty years ago, Dr. François A. Auger, the founder of the Laboratory of Experimental Organogenesis (LOEX), introduced the self-assembly technique. This innovative technique relies on the ability of dermal fibroblasts to produce and assemble their own extracellular matrix, differing from all other tissue-engineering techniques that use preformed synthetic scaffolds. Nevertheless, the use of the self-assembly technique was limited for a long time due to its main drawbacks: time and cost. Recent scientific breakthroughs have addressed these limitations. New protocol modifications that aim at increasing the rate of extracellular matrix formation have been proposed to reduce the production costs and laboratory handling time of engineered tissues. Moreover, the introduction of vascularization strategies in vitro permits the formation of capillary-like networks within reconstructed tissues. These optimization strategies enable the large-scale production of inexpensive native-like substitutes using the self-assembly technique. These substitutes can be used to reconstruct three-dimensional models free of exogenous materials for clinical and fundamental applications.
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Smolar J, Horst M, Sulser T, Eberli D. Bladder regeneration through stem cell therapy. Expert Opin Biol Ther 2018; 18:525-544. [DOI: 10.1080/14712598.2018.1439013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jakub Smolar
- Department of Urology, University Hospital Zurich, Schlieren, Switzerland
| | - Maya Horst
- Department of Urology, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Tulio Sulser
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
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