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Casarin M, Toniolo I, Todesco M, Carniel EL, Astolfi L, Morlacco A, Moro FD. Mechanical characterization of porcine ureter for the evaluation of tissue-engineering applications. Front Bioeng Biotechnol 2024; 12:1412136. [PMID: 38952671 PMCID: PMC11215493 DOI: 10.3389/fbioe.2024.1412136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 05/21/2024] [Indexed: 07/03/2024] Open
Abstract
Introduction: Clinics increasingly require readily deployable tubular substitutes to restore the functionality of structures like ureters and blood vessels. Despite extensive exploration of various materials, both synthetic and biological, the optimal solution remains elusive. Drawing on abundant literature experiences, there is a pressing demand for a substitute that not only emulates native tissue by providing requisite signals and growth factors but also exhibits appropriate mechanical resilience and behaviour. Methods: This study aims to assess the potential of porcine ureters by characterizing their biomechanical properties in their native configuration through ring and membrane flexion tests. In order to assess the tissue morphology before and after mechanical tests and the eventual alteration of tissue microstructure that would be inserted in material constitutive description, histological staining was performed on samples. Corresponding computational analyses were performed to mimic the experimental campaign to identify the constitutive material parameters. Results: The absence of any damages to muscle and collagen fibres, which only compacted after mechanical tests, was demonstrated. The experimental tests (ring and membrane flexion tests) showed non-linearity for material and geometry and the viscoelastic behaviour of the native porcine ureter. Computational models were descriptive of the mechanical behaviour ureteral tissue, and the material model feasible. Discussion: This analysis will be useful for future comparison with decellularized tissue for the evaluation of the aggression of cell removal and its effect on microstructure. The computational model could lay the basis for a reliable tool for the prediction of solicitation in the case of tubular substitutions in subsequent simulations.
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Affiliation(s)
- Martina Casarin
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy
| | - Ilaria Toniolo
- Department of Industrial Engineering, University of Padua, Padova, Italy
| | - Martina Todesco
- Department of Civil, Environmental and Architectural Engineering, University of Padua, Padova, Italy
| | | | - Laura Astolfi
- Bioacoustics Research Laboratory, Department of Neuroscience DNS, University of Padova, Padova, Italy
| | - Alessandro Morlacco
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy
| | - Fabrizio Dal Moro
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy
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2
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Casarin M, Todesco M, Sandrin D, Romanato F, Bagno A, Morlacco A, Dal Moro F. A Novel Hybrid Membrane for Urinary Conduit Substitutes Based on Small Intestinal Submucosa Coupled with Two Synthetic Polymers. J Funct Biomater 2022; 13:jfb13040222. [PMID: 36412863 PMCID: PMC9680483 DOI: 10.3390/jfb13040222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
Among the urinary tract's malignancies, bladder cancer is the most frequent one: it is at the tenth position of most common cancers worldwide. Currently, the gold standard therapy consists of radical cystectomy, which results in the need to create a urinary diversion using a bowel segment from the patient. Nevertheless, due to several complications associated with bowel resection and anastomosis, which significantly affect patient quality of life, it is becoming extremely important to find an alternative solution. In our recent work, we proposed the decellularized porcine small intestinal submucosa (SIS) as a candidate material for urinary conduit substitution. In the present study, we create SIS-based hybrid membranes that are obtained by coupling decellularized SIS with two commercially available polycarbonate urethanes (Chronoflex AR and Chronoflex AR-LT) to improve SIS mechanical resistance and impermeability. We evaluated the hybrid membranes by means of immunofluorescence, two-photon microscopy, FTIR analysis, and mechanical and cytocompatibility tests. The realization of hybrid membranes did not deteriorate SIS composition, but the presence of polymers ameliorates the mechanical behavior of the hybrid constructs. Moreover, the cytocompatibility tests demonstrated a significant increase in cell growth compared to decellularized SIS alone. In light of the present results, the hybrid membrane-based urinary conduit can be a suitable candidate to realize a urinary diversion in place of an autologous intestinal segment. Further efforts will be performed in order to create a cylindrical-shaped hybrid membrane and to study its hydraulic behavior.
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Affiliation(s)
- Martina Casarin
- Department of Surgery, Oncology and Gastroenterology, Giustiniani 2, 35128 Padua, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
| | - Martina Todesco
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy
| | - Deborah Sandrin
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
- Department of Physics and Astronomy ‘G. Galilei’, University of Padova, Via Marzolo 8, 35131 Padua, Italy
| | - Filippo Romanato
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
- Department of Physics and Astronomy ‘G. Galilei’, University of Padova, Via Marzolo 8, 35131 Padua, Italy
- Laboratory of Optics and Bioimaging, Institute of Pediatric Research Città della Speranza, 35127 Padua, Italy
| | - Andrea Bagno
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
- Department of Industrial Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy
- Correspondence:
| | - Alessandro Morlacco
- Department of Surgery, Oncology and Gastroenterology, Giustiniani 2, 35128 Padua, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
| | - Fabrizio Dal Moro
- Department of Surgery, Oncology and Gastroenterology, Giustiniani 2, 35128 Padua, Italy
- L.i.f.e.L.a.b. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, Via N. Giustiniani 2, 35128 Padua, Italy
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Kapetanos K, Light A, Thakare N, Mahbubani K, Saeb-Parsy K, Saeb-Parsy K. Bioengineering solutions for Ureteric disorders: Clinical need, challenges and opportunities. BJU Int 2022; 130:408-419. [PMID: 35388587 PMCID: PMC9544734 DOI: 10.1111/bju.15741] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 02/26/2022] [Accepted: 03/28/2022] [Indexed: 12/01/2022]
Abstract
Objectives To summarise the causes of ureteric damage and the current standard of care, discussing the risks and benefits of available therapeutic options. We then focus on the current and future solutions that can be provided by ureteric bioengineering and provide a description of the ideal characteristics of a bioengineered product. Methods We performed a literature search in February 2021 in: Google Scholar, Medline, and Web of Science. Three searches were conducted, investigating: (a) the epidemiology of ureteric pathology, (b) the current standard of care, and (c) the state of the art in ureteric bioengineering. Results The most‐common causes of ureteric damage are iatrogenic injury and external trauma. Current approaches to treatment include stent placement or surgical reconstruction. Reconstruction can be done using either urological tissue or segments of the gastrointestinal tract. Limitations include scarring, strictures, and infections. Several bioengineered alternatives have been explored in animal studies, with variations in the choice of scaffold material, cellular seeding populations, and pre‐implantation processing. Natural grafts and hybrid material appear to be associated with superior outcomes. Furthermore, seeding of the scaffold material with stem cells or differentiated urothelial cells allows for better function compared to acellular scaffolds. Some studies have attempted to pre‐implant the graft in the omentum prior to reconstruction, but this has yet to prove any definitive benefits. Conclusion There is an unmet clinical need for safer and more effective treatment for ureteric injuries. Urological bioengineering is a promising solution in preclinical studies. However, substantial scientific, logistic, and economic challenges must be addressed to harness its transformative potential in improving outcomes.
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Affiliation(s)
| | - Alexander Light
- Department of Urology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Niyukta Thakare
- Department of Urology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Krishnaa Mahbubani
- Cambridge Biorepository for Translational Medicine (CBTM), NIHR Cambridge Biomedical Research Centre, Cambridge, UK.,Department of Haematology, University of Cambridge, Cambridge, UK
| | - Kasra Saeb-Parsy
- Department of Urology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Kourosh Saeb-Parsy
- Department of Surgery, University of Cambridge and Cambridge NIHR Biomedical Research Centre, Cambridge
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4
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Gundogdu G, Okhunov Z, Cristofaro V, Starek S, Veneri F, Orabi H, Jiang P, Sullivan MP, Mauney JR. Evaluation of Bi-Layer Silk Fibroin Grafts for Tubular Ureteroplasty in a Porcine Defect Model. Front Bioeng Biotechnol 2021; 9:723559. [PMID: 34604185 PMCID: PMC8484785 DOI: 10.3389/fbioe.2021.723559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/31/2021] [Indexed: 02/05/2023] Open
Abstract
Ureteral reconstruction with autologous tissue grafts is often limited by tissue availability and donor site morbidity. This study investigates the performance of acellular, bi-layer silk fibroin (BLSF) scaffolds in a porcine model of ureteroplasty. Tubular ureteroplasty with BLSF grafts in combination with transient stenting for 8 weeks was performed in adult female, Yucatan, mini-swine (N = 5). Animals were maintained for 12 weeks post-op with imaging of neoconduits using ultrasonography and retrograde ureteropyelography carried out at 2 and 4 weeks intervals. End-point analyses of ureteral neotissues and unoperated controls included histological, immunohistochemical (IHC), histomorphometric evaluations as well as ex vivo functional assessments of contraction/relaxation. All animals survived until scheduled euthanasia and displayed mild hydronephrosis (Grades 1-2) in reconstructed collecting systems during the 8 weeks stenting period with one animal presenting with a persistent subcutaneous fistula at 2 weeks post-op. By 12 weeks of scaffold implantation, unstented neoconduits led to severe hydronephrosis (Grade 4) and stricture formation in the interior of graft sites in 80% of swine. Bulk scaffold extrusion into the distal ureter was also apparent in 60% of swine contributing to ureteral obstruction. However, histological and IHC analyses revealed the formation of innervated, vascularized neotissues with a-smooth muscle actin+ and SM22α+ smooth muscle bundles as well as uroplakin 3A+ and pan-cytokeratin + urothelium. Ex vivo contractility and relaxation responses of neotissues were similar to unoperated control segments. BLSF biomaterials represent emerging platforms for tubular ureteroplasty, however further optimization is needed to improve in vivo degradation kinetics and mitigate stricture formation.
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Affiliation(s)
- Gokhan Gundogdu
- Department of Urology, University of California, Irvine, Irvine, CA, United States
| | - Zhamshid Okhunov
- Department of Urology, University of California, Irvine, Irvine, CA, United States
| | - Vivian Cristofaro
- Division of Urology, Veterans Affairs Boston Healthcare System, Boston, MA, United States.,Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Stephanie Starek
- Department of Urology, University of California, Irvine, Irvine, CA, United States
| | - Faith Veneri
- Department of Urology, University of California, Irvine, Irvine, CA, United States
| | - Hazem Orabi
- Department of Urology, University of California, Irvine, Irvine, CA, United States
| | - Pengbo Jiang
- Department of Urology, University of California, Irvine, Irvine, CA, United States
| | - Maryrose P Sullivan
- Division of Urology, Veterans Affairs Boston Healthcare System, Boston, MA, United States.,Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Joshua R Mauney
- Department of Urology, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
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Abstract
Tissue engineering could play a major role in the setting of urinary diversion. Several conditions cause the functional or anatomic loss of urinary bladder, requiring reconstructive procedures on the urinary tract. Three main approaches are possible: (i) incontinent cutaneous diversion, such as ureterocutaneostomy, colonic or ileal conduit, (ii) continent pouch created using different segments of the gastrointestinal system and a cutaneous stoma, and (iii) orthotopic urinary diversion with an intestinal segment with spherical configuration and anastomosis to the urethra (neobladder, orthotopic bladder substitution). However, urinary diversions are associated with numerous complications, such as mucus production, electrolyte imbalances and increased malignant transformation potential. In this context, tissue engineering would have the fundamental role of creating a suitable material for urinary diversion, avoiding the use of bowel segments, and reducing complications. Materials used for the purpose of urinary substitution are biological in case of acellular tissue matrices and naturally derived materials, or artificial in case of synthetic polymers. However, only limited success has been achieved so far. The aim of this review is to present the ideal properties of a urinary tissue engineered scaffold and to examine the results achieved so far. The most promising studies have been highlighted in order to guide the choice of scaffolds and cells type for further evolutions.
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Wang P, Xiao S, Fu W, Wang Z, Zhang X. A Preliminary Study on the Promotion of Canine Adipose-Derived Stem Cell Differentiation by Perfusion-Decellularized Ureter Matrix. Transplant Proc 2021; 53:2052-2059. [PMID: 34247859 DOI: 10.1016/j.transproceed.2021.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 05/10/2021] [Accepted: 06/01/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND This study was to assess the possibility of the perfusing decellularized ureters (DUs) promoting the differentiation of the canine adipose stem cell (cASCs). METHODS cASCs were isolated and cultured in different induction media to determine their multidirectional differentiation potential. The perfusion system was used to prepare the DUs, and the prepared DUs were systematically evaluated. The DU coating was prepared by enzymatic digestion for cell culture. The cASCs were seeded on the coverslips covered with DU coating and samples were collected on days 3, 7, and 10. Immunofluorescence staining and molecular biology testing were used to examine the differentiation of cASCs seeded on the DU coating. RESULTS The cASCs were isolated and identified by flow cytometry. The prepared DUs removed the nuclear materials, and the 3-dimensional structure and biological compositions of the ureter were well preserved. Immunofluorescence staining showed the expression of anti-alpha smooth muscle actin (α-SMA). Western blot results suggested that the content of α-SMA in the experimental group was significantly higher than that in the control group at 3 different time points, and the mRNA expressions of α-SMA in the experimental group gradually increased with extended the culture time, whereas there was no significant change in the control group. CONCLUSION The cASCs seeded on the coverslips of DU coating could differentiate into smooth muscle cells, and the number of differentiated cASCs increased significantly with extended incubation time.
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Affiliation(s)
- Pengchao Wang
- Department of Urology, Hainan Hospital of Chinese PLA General Hospital, Sanya, China
| | - Shuwei Xiao
- Department of Urology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Weijun Fu
- Department of Urology, The First Medical Center of Chinese PLA General Hospital, Beijing, China.
| | - Zhongxin Wang
- Department of Urology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xu Zhang
- Department of Urology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
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7
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Pokrywczynska M, Maj M, Kloskowski T, Buhl M, Balcerczyk D, Jundziłł A, Szeliski K, Rasmus M, Drewa T. Molecular Aspects of Adipose-Derived Stromal Cell Senescence in a Long-Term Culture: A Potential Role of Inflammatory Pathways. Cell Transplant 2021; 29:963689720917341. [PMID: 32314614 PMCID: PMC7586277 DOI: 10.1177/0963689720917341] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Long-term culture of mesenchymal stromal/stem cells in vitro leads to their senescence. It is very important to define the maximal passage to which the mesenchymal stromal/stem cells maintain their regenerative properties and can be used for cellular therapies and construction of neo-organs for clinical application. Adipose-derived stromal/stem cells were isolated from porcine adipose tissue. Immunophenotype, population doubling time, viability using bromodeoxyuridine assay, MTT assay, clonogencity, β-galactosidase activity, specific senescence-associated gene expression, apoptosis, and cell cycle of adipose-derived mesenchymal stromal/stem cells (AD-MSCs) were analyzed. All analyses were performed through 12 passages (P). Decreasing viability and proliferative potential of AD-MSCs with subsequent passages together with prolonged population doubling time were observed. Expression of β-galactosidase gradually increased after P6. Differentiation potential of AD-MSCs into adipogenic, chondrogenic, and osteogenic lineages decreased at the end of culture (P10). No changes in the cell cycle, the number of apoptotic cells and expression of specific AD-MSC markers during the long-term culture were revealed. Molecular analysis showed increased expression of genes involved in activation of inflammatory response. AD-MSCs can be cultured for in vivo applications without loss of their properties up to P6.
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Affiliation(s)
- Marta Pokrywczynska
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Both the authors contributed equally to this article
| | - Małgorzata Maj
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Department of Tissue Engineering, Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Both the authors contributed equally to this article
| | - Tomasz Kloskowski
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Monika Buhl
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Daria Balcerczyk
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Arkadiusz Jundziłł
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Department of Plastic, Reconstructive and Aesthetic Surgery, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Kamil Szeliski
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Marta Rasmus
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Tomasz Drewa
- Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland.,Department of Tissue Engineering, Department of Regenerative Medicine, Cell and Tissue Bank, Chair of Urology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
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8
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Zamani M, Shakhssalim N, Ramakrishna S, Naji M. Electrospinning: Application and Prospects for Urologic Tissue Engineering. Front Bioeng Biotechnol 2020; 8:579925. [PMID: 33117785 PMCID: PMC7576678 DOI: 10.3389/fbioe.2020.579925] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/18/2020] [Indexed: 12/14/2022] Open
Abstract
Functional disorders and injuries of urinary bladder, urethra, and ureter may necessitate the application of urologic reconstructive surgeries to recover normal urine passage, prevent progressive damages of these organs and upstream structures, and improve the quality of life of patients. Reconstructive surgeries are generally very invasive procedures that utilize autologous tissues. In addition to imperfect functional outcomes, these procedures are associated with significant complications owing to long-term contact of urine with unspecific tissues, donor site morbidity, and lack of sufficient tissue for vast reconstructions. Thanks to the extensive advancements in tissue engineering strategies, reconstruction of the diseased urologic organs through tissue engineering have provided promising vistas during the last two decades. Several biomaterials and fabrication methods have been utilized for reconstruction of the urinary tract in animal models and human subjects; however, limited success has been reported, which inspires the application of new methods and biomaterials. Electrospinning is the primary method for the production of nanofibers from a broad array of natural and synthetic biomaterials. The biomimetic structure of electrospun scaffolds provides an ECM-like matrix that can modulate cells' function. In addition, electrospinning is a versatile technique for the incorporation of drugs, biomolecules, and living cells into the constructed scaffolds. This method can also be integrated with other fabrication procedures to achieve hybrid smart constructs with improved performance. Herein, we reviewed the application and outcomes of electrospun scaffolds in tissue engineering of bladder, urethra, and ureter. First, we presented the current status of tissue engineering in each organ, then reviewed electrospun scaffolds from the simplest to the most intricate designs, and summarized the outcomes of preclinical (animal) studies in this area.
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Affiliation(s)
- Masoud Zamani
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Amherst, NY, United States
| | - Nasser Shakhssalim
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Mohammad Naji
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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9
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Zolhavarieh SM, Amirhassani S, Sannamari S, Nourian A. Proximal ureteral reconstruction using renal capsule flap: a canine experimental model. Cent European J Urol 2020; 73:68-73. [PMID: 32395327 PMCID: PMC7203774 DOI: 10.5173/ceju.2020.0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 12/31/2019] [Accepted: 01/13/2020] [Indexed: 11/22/2022] Open
Abstract
Introduction The aim of this article was to evaluate the effectiveness of using the renal capsule in ureteral reconstruction in a canine model. Material and methods Ten clinically healthy male adult dogs were used in this study. Dogs underwent ureteral reconstruction using a tube-shaped flap of the renal capsule. Results All but one animal (90%) survived till nephrectomy and thereafter. At 30 days after operation, the double-J stent was removed from the ureter, and at the 60th day, intravenous pyelography confirmed openness of the duct. The internal surface of the tunneled flap was coated with thick, folded urothelium. Maturing granulation tissue and angiogenesis as well as fiber producing fibroblasts were observed in the lamina propria. The presence of smooth muscle cells beneath the lamina propria indicated complete reconstitution of the damaged ureter. Conclusions The results showed that the autologous renal capsular flap provided a practical option for treating ureteral defects in dogs with an acceptable outcome. So, using the selfsame renal capsular tissue is a feasible method for restoration of the injured proximal ureter.
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Affiliation(s)
- Seyed Masoud Zolhavarieh
- Department of Clinical Sciences, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Shahriar Amirhassani
- Urology and Nephrology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Shahriar Sannamari
- Urology and Nephrology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Nourian
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
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10
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Adamowicz J, Kuffel B, Van Breda SV, Pokrwczynska M, Drewa T. Reconstructive urology and tissue engineering: Converging developmental paths. J Tissue Eng Regen Med 2019; 13:522-533. [DOI: 10.1002/term.2812] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 10/23/2018] [Accepted: 12/17/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Jan Adamowicz
- Chair of Urology, Department of Regenerative MedicineCollegium Medicum Nicolaus Copernicus University Bydgoszcz Poland
| | - Blazej Kuffel
- Chair of Urology, Department of Regenerative MedicineCollegium Medicum Nicolaus Copernicus University Bydgoszcz Poland
| | | | - Marta Pokrwczynska
- Chair of Urology, Department of Regenerative MedicineCollegium Medicum Nicolaus Copernicus University Bydgoszcz Poland
| | - Tomasz Drewa
- Chair of Urology, Department of Regenerative MedicineCollegium Medicum Nicolaus Copernicus University Bydgoszcz Poland
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11
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Ramuta TŽ, Kreft ME. Human Amniotic Membrane and Amniotic Membrane-Derived Cells: How Far Are We from Their Use in Regenerative and Reconstructive Urology? Cell Transplant 2019; 27:77-92. [PMID: 29562770 PMCID: PMC6434475 DOI: 10.1177/0963689717725528] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Human amniotic membrane (hAM) is the innermost layer of fetal membranes, which surrounds the developing fetus and forms the amniotic cavity. hAM and hAM-derived cells possess many properties that make them suitable for use in regenerative medicine, such as low immunogenicity, promotion of epithelization, anti-inflammatory properties, angiogenic and antiangiogenic properties, antifibrotic properties, antimicrobial properties, and anticancer properties. Many pathological conditions of the urinary tract lead to organ damage or complete loss of function. Consequently, the reconstruction or replacement of damaged organs is needed, which makes searching for new approaches in regenerative and reconstructive urology a necessity. The use of hAM for treating defects in kidneys, ureters, urinary bladder, and urethra was tested in vitro in cell cultures and in vivo in mice, rats, rabbits, cats, dogs, and also in humans. These studies confirmed the advantages and the potential of hAM for use in regenerative and reconstructive urology as stated above. However, they also pointed out a few concerns we have to take into consideration. These are (1) the lack of a standardized protocol in hAM preparation and storage, (2) the heterogeneity of hAM, and especially (3) low mechanical strength of hAM. Before any wider use of hAM for treating urological defects, the protocols for preparation and storage will need to be standardized, followed by more studies on larger animals and clinical trials, which will altogether extensively assess the potential of hAM use in urological patients.
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Affiliation(s)
- Taja Železnik Ramuta
- 1 Faculty of Medicine, Institute of Cell biology, University of Ljubljana, Ljubljana, Slovenia
| | - Mateja Erdani Kreft
- 1 Faculty of Medicine, Institute of Cell biology, University of Ljubljana, Ljubljana, Slovenia
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12
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de Jonge PK, Sloff M, Janke HP, Versteegden LR, Kortmann BB, de Gier RP, Geutjes PJ, Oosterwijk E, Feitz WF. Ureteral Reconstruction in Goats Using Tissue-Engineered Templates and Subcutaneous Preimplantation. Tissue Eng Part A 2018; 24:863-872. [PMID: 29105596 DOI: 10.1089/ten.tea.2017.0347] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Paul K.J.D. de Jonge
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Marije Sloff
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Heinz-Peter Janke
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Luuk R.M. Versteegden
- Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Barbara B.M. Kortmann
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Robert P.E. de Gier
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Paul J. Geutjes
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Egbert Oosterwijk
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wout F.J. Feitz
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, The Netherlands
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13
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Li Y, Shan Z, Yang B, Yang D, Men C, Cui Y, Wu J. Cathelicidin LL37 Promotes Epithelial and Smooth-Muscle-Like Differentiation of Adipose-Derived Stem Cells through the Wnt/β-Catenin and NF-κB Pathways. BIOCHEMISTRY (MOSCOW) 2018; 82:1336-1345. [PMID: 29223160 DOI: 10.1134/s0006297917110116] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Ureter reconstruction is a difficult procedure in urology. Adipose-derived stem cells (ADSCs), along with multipotency and self-renewal capacity, are a preferred choice for tissue engineering-based ureteral reconstruction. We explored the synergic role of cathelicidin LL37 (LL37) in epithelial and smooth-muscle-like differentiation. ADSCs were separated from adipose tissues of mouse and characterized by flow cytometry. The ADSCs were then stably transfected with pGC-FU-GFP (pGC) or pGC containing full-length LL37 (pGC-LL37), respectively. Cell viability and apoptosis were respectively estimated in the stably transfected cells and non-transfected cells. Then, qRT-PCR and Western blot analysis were used for determinations of epithelial marker expressions after induction by all-trans retinoic acid as well as smooth-muscle-like marker expressions after induction by transforming growth factor-β1. Then, possibly involved signaling pathways and extracellular expression of LL37 were detected. Cell viability and apoptosis were not changed after LL37 overexpression. Expression levels of epithelial and smooth-muscle-like markers were significantly upregulated by LL37 overexpression. Moreover, expressions of key kinases involved in the Wnt/β-catenin pathway as well as epithelial marker were upregulated by the LL37 overexpression, while it was reversed by Wnt/β-catenin inhibitor. Likewise, expressions of key kinases involved in the nuclear factor κB (NF-κB) pathway as well as smooth-muscle-like markers were upregulated by LL37 overexpression, which was reversed by NF-κB inhibitor. LL37 was found in the culture medium. LL37, which could be released into the medium, had no impact on cell proliferation and apoptosis of ADSCs. However, LL37 promoted epithelial and smooth-muscle-like differentiation through activating the Wnt/β-catenin and NF-κB pathways, respectively.
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Affiliation(s)
- Yongwei Li
- Department of Urology Surgery, Qingdao University, Affiliated Yantai Yuhuangding Hospital, Yantai, 264000, China.
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14
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Pokrywczyńska M, Kloskowski T, Balcerczyk D, Buhl M, Jundziłł A, Nowacki M, Męcińska‐Jundziłł K, Drewa T. Stem cells and differentiated cells differ in their sensitivity to urine in vitro. J Cell Biochem 2017; 119:2307-2319. [DOI: 10.1002/jcb.26393] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/30/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Marta Pokrywczyńska
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
| | - Tomasz Kloskowski
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
| | - Daria Balcerczyk
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
| | - Monika Buhl
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
| | - Arkadiusz Jundziłł
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
- Department of Plastic, Reconstructive and Aesthetic Surgery, Collegium MedicumNicolaus Copernicus UniversityBydgoszczPoland
| | - Maciej Nowacki
- Chair and Department of Surgical Oncology, Ludwik Rydygier's Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in TorunFranciszek Łukaszczyk Memorial HospitalBydgoszczPoland
| | - Kaja Męcińska‐Jundziłł
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
| | - Tomasz Drewa
- Chair of Urology, Department of Regenerative Medicine, Cell and Tissue Bank, Ludwik Rydygier's Collegium Medicum in BydgoszczNicolaus Copernicus University in TorunBydgoszczPoland
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15
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Adamowicz J, Pokrywczynska M, Van Breda SV, Kloskowski T, Drewa T. Concise Review: Tissue Engineering of Urinary Bladder; We Still Have a Long Way to Go? Stem Cells Transl Med 2017; 6:2033-2043. [PMID: 29024555 PMCID: PMC6430044 DOI: 10.1002/sctm.17-0101] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Accepted: 07/18/2017] [Indexed: 12/18/2022] Open
Abstract
Regenerative medicine is a new branch of medicine based on tissue engineering technology. This rapidly developing field of science offers revolutionary treatment strategy aimed at urinary bladder regeneration. Despite many promising announcements of experimental urinary bladder reconstruction, there has been a lack in commercialization of therapies based on current investigations. This is due to numerous obstacles that are slowly being identified and precisely overcome. The goal of this review is to present the current status of research on urinary bladder regeneration and highlight further challenges that need to be gradually addressed. We put an emphasis on expectations of urologists that are awaiting tissue engineering based solutions in clinical practice. This review also presents a detailed characteristic of obstacles on the road to successful urinary bladder regeneration from urological clinician perspective. A defined interdisciplinary approach might help to accelerate planning transitional research tissue engineering focused on urinary tracts. Stem Cells Translational Medicine 2017;6:2033-2043.
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Affiliation(s)
- Jan Adamowicz
- Chair of Urology, Department of Regenerative Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Marta Pokrywczynska
- Chair of Urology, Department of Regenerative Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | - Tomasz Kloskowski
- Chair of Urology, Department of Regenerative Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Tomasz Drewa
- Chair of Urology, Department of Regenerative Medicine, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
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16
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de Jonge P, Simaioforidis V, Geutjes P, Oosterwijk E, Feitz W. Ureteral reconstruction with reinforced collagen scaffolds in a porcine model. J Tissue Eng Regen Med 2017; 12:80-88. [PMID: 27860431 DOI: 10.1002/term.2366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 08/09/2016] [Accepted: 11/09/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Paul de Jonge
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Vasileios Simaioforidis
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Paul Geutjes
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Egbert Oosterwijk
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Wout Feitz
- Department of Urology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.,Radboudumc Amalia Children's Hospital, Radboud University Medical Center, Nijmegen, the Netherlands
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17
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Activin B regulates adipose-derived mesenchymal stem cells to promote skin wound healing via activation of the MAPK signaling pathway. Int J Biochem Cell Biol 2017; 87:69-76. [DOI: 10.1016/j.biocel.2017.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 03/04/2017] [Accepted: 04/07/2017] [Indexed: 12/31/2022]
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18
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Xiao SW, Wang PC, Fu WJ, Wang ZX, Li G, Zhang X. Novel perfusion-decellularized method to prepare decellularized ureters for ureteral tissue-engineered repair. J Biosci Bioeng 2016; 122:758-764. [DOI: 10.1016/j.jbiosc.2016.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 06/10/2016] [Accepted: 06/15/2016] [Indexed: 12/17/2022]
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Use of Adipose-Derived Stem Cells to Support Topical Skin Adhesive for Wound Closure: A Preliminary Report from Animal In Vivo Study. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2505601. [PMID: 27803921 PMCID: PMC5075594 DOI: 10.1155/2016/2505601] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/09/2016] [Accepted: 09/14/2016] [Indexed: 01/17/2023]
Abstract
The aim of this study was to determine the local and systemic effects of adipose-derived stem cells (ADSCs) as a component of topical skin adhesive in an animal artificial wound closure model. In presented study the cosmetic effects, histological analysis, mechanical properties, and cell migration have been assessed to evaluate the usefulness of ADSCs as supporting factor for octyl blend cyanoacrylate adhesive. The total of 40 rats were used and divided into six groups. In the Study Group, ADSCs were administered by multipoint injection of the six surrounding intrawound areas with additional freely leaving procedure of the cells between the skin flaps just before applying adhesive to close the wound. Five control groups without using ADSCs, utilizing different types of standard wound closure, were created in order to check efficiency of experimental stem cell therapy. In our study, we proved that ADSCs could be used effectively also as a supportive tool in topical skin adhesive for wound closure. However we did not achieve any spectacular differences related to such aspects as better mechanical properties or special biological breakthroughs in wound healing properties. The use of stem cells, especially ADSCs for wound closure can provide an inspiring development in plastic and dermatologic surgery.
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Robot-assisted ureteral reconstruction using a tubularized peritoneal flap: a novel technique in a chronic porcine model. World J Urol 2016; 35:89-96. [PMID: 27151276 DOI: 10.1007/s00345-016-1840-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 04/27/2016] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE To evaluate the feasibility and functional outcomes in porcine models of a novel robotic surgical technique for the treatment of complex ureteral injuries and strictures. MATERIALS AND METHODS Six pigs underwent robotic ureteral reconstruction using a long tabularized peritoneal flap and followed for 6-9 weeks after the surgery. Ureteral flap vascularity, intra-renal pressure, patency of the conduct, endoscopic aspect of the flap, renal function and histopathology were evaluated. RESULTS All animals successfully underwent ureteral reconstruction using a tubularized peritoneal flap. Median operative time was 223 min (162-360). Flap tubularization suture took 31 min (19-47), and proximal anastomosis took 20 min (15-38). Bladder mobilization with psoas hitch and distal anastomosis took 9 min (7-12) and 23 min (13-46), respectively. On follow-up, significant shrinkage of the ureteral flap in both length and width was observed. Antegrade pyelograms confirmed dilation and tortuosity of the proximal ureter, dilation of the renal pelvis, and major and minor calyxes without any definitive strictures. Microscopically, focal urothelial lining was seen in the neoureter. Creatinine level was significantly higher at the end of the follow-up period (p = 0.003). CONCLUSIONS Robot-assisted ureteral reconstruction using a tubularized peritoneum flap is technically feasible and reproducible. The flap sustained abundant vascular supply after different intervals of follow-up and the peritoneal mesenchymal cells differentiated into urothelium and myofibroblasts. Further studies are needed to address the issue of functional obstruction to improve long-term renal function outcomes.
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21
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Stachewicz U, Bailey RJ, Zhang H, Stone CA, Willis CR, Barber AH. Wetting Hierarchy in Oleophobic 3D Electrospun Nanofiber Networks. ACS APPLIED MATERIALS & INTERFACES 2015; 7:16645-16652. [PMID: 26176304 DOI: 10.1021/acsami.5b04272] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Wetting behavior between electrospun nanofibrous networks and liquids is of critical importance in many applications including filtration and liquid-repellent textiles. The relationship between intrinsic nanofiber properties, including surface characteristics, and extrinsic nanofibrous network organization on resultant wetting characteristics of the nanofiber network is shown in this work. Novel 3D imaging exploiting focused ion beam (FIB) microscopy and cryo-scanning electron microscopy (cryo-SEM) highlights a wetting hierarchy that defines liquid interactions with the network. Specifically, small length scale partial wetting between individual electrospun nanofibers and low surface tension liquids, measured both using direct SEM visualization and a nano Wilhelmy balance approach, provides oleophobic surfaces due to the high porosity of electrospun nanofiber networks. These observations conform to a metastable Cassie-Baxter regime and are important in defining general rules for understanding the wetting behavior between fibrous solids and low surface tension liquids for omniphobic functionality.
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Affiliation(s)
- Urszula Stachewicz
- §International Centre of Electron Microscopy for Materials Science and Faculty of Metals Engineering and Industrial Computer Science, AGH University of Science and Technology, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
| | | | | | | | | | - Asa H Barber
- ⊥School of Engineering, University of Portsmouth, Portsmouth PO1 3DJ, United Kingdom
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22
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Urine--a waste or the future of regenerative medicine? Med Hypotheses 2015; 84:344-9. [PMID: 25649852 DOI: 10.1016/j.mehy.2015.01.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 09/19/2014] [Accepted: 01/15/2015] [Indexed: 02/07/2023]
Abstract
In recent years, urine has emerged as a source of urine cells. Two different types of cells can be isolated from urine: urine derived stem cells (USCs) and renal tubular cells called urine cells (UCs). USCs have great differentiation properties and can be potentially used in genitourinary tract regeneration. Within this paper, we attempt to demonstrate that such as easily accessible source of cells, collected during completely non-invasive procedures, can be better utilized. Cells derived from urine can be isolated, stored, and used for the creation of urine stem cell banks. In the future, urine holds great potential to become a main source of cells for tissue engineering and regenerative medicine.
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Kloskowski T, Pokrywczyńska M, Drewa T. Artificial urinary conduit construction using tissue engineering methods. Cent European J Urol 2014; 68:109-14. [PMID: 25914849 PMCID: PMC4408386 DOI: 10.5173/ceju.2015.01.448] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 09/12/2014] [Accepted: 11/16/2014] [Indexed: 11/24/2022] Open
Abstract
Introduction Incontinent urinary diversion using an ileal conduit is the most popular method used by urologists after bladder cystectomy resulting from muscle invasive bladder cancer. The use of gastrointestinal tissue is related to a series of complications with the necessity of surgical procedure extension which increases the time of surgery. Regenerative medicine together with tissue engineering techniques gives hope for artificial urinary conduit construction de novo without affecting the ileum. Material and methods In this review we analyzed history of urinary diversion together with current attempts in urinary conduit construction using tissue engineering methods. Based on literature and our own experience we presented future perspectives related to the artificial urinary conduit construction. Results A small number of papers in the field of tissue engineered urinary conduit construction indicates that this topic requires more attention. Three main factors can be distinguished to resolve this topic: proper scaffold construction along with proper regeneration of both the urothelium and smooth muscle layers. Conclusions Artificial urinary conduit has a great chance to become the first commercially available product in urology constructed by regenerative medicine methods.
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Affiliation(s)
- Tomasz Kloskowski
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Marta Pokrywczyńska
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Tomasz Drewa
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland ; Nicolaus Copernicus Hospital in Toruń, Department of General and Oncologic Urology, Toruń, Poland
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24
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Nowacki M, Pietkun K, Pokrywczyńska M, Rasmus M, Warda K, Kloskowski T, Jundziłł A, Gagat M, Grzanka A, Bodnar M, Marszałek A, Drewa T, Czajkowski R. Filling effects, persistence, and safety of dermal fillers formulated with stem cells in an animal model. Aesthet Surg J 2014; 34:1261-9. [PMID: 25168156 DOI: 10.1177/1090820x14548212] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Research is scarce regarding the effectiveness of dermal fillers containing autologous stem cells. OBJECTIVES The authors sought to determine the local and systemic effects of adipose-derived stem cells (ADSCs) as a component of dermal fillers in an animal model. METHODS Wistar rats were injected with 1 of the following dermal fillers: ADSCs combined with hyaluronic acid (ADSC-HA), ADSCs combined with fish collagen (ADSC-COL), HA alone (CONTROL-HA), or COL alone (CONTROL-COL). Fillers were injected into the glabella, dorsum, and chest of each animal. The ADSCs were labeled with PKH26 to assess cell migration. Filling effects (FEs) were measured immediately after injection and at 1.5 months and 3 months after injection. Skin specimens were stained with hematoxylin and eosin to assess localization and persistence of ADSCs. RESULTS Mean FEs in animals implanted with ADSCs were greater and persisted longer than those of controls. No inflammatory responses were observed in any group. Three months after injection, PKH26-positive cells comprised nearly 70% of cells at the injection site in animals treated with ADSC-HA. PKH26 fluorescence also was detected in the spleen but not in the brain, kidney, or lung. CONCLUSIONS Stem cells have the potential to improve the aesthetic effects and longevity of dermal fillers.
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Affiliation(s)
- Maciej Nowacki
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Katarzyna Pietkun
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Marta Pokrywczyńska
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Marta Rasmus
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Karolina Warda
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Tomasz Kloskowski
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Arkadiusz Jundziłł
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Maciej Gagat
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Alina Grzanka
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Magdalena Bodnar
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Andrzej Marszałek
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Tomasz Drewa
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
| | - Rafał Czajkowski
- Mr Nowacki is an MD and PhD student, Dr Jundziłł is a volunteer, Dr Pokrywczyńska and Dr Kloskowski are research fellows, and Ms Rasmus and Ms Warda are MSc students in the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, PolandMr Gagat is a research fellow and Dr Grzanka is Professor and Head of the Department of Histology and Embryology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Bodnar is a research fellow in the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, Poland, and Dr Marszałek is Professor and head of the Department of Clinical Pathomorphology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDepartment of Oncologic Pathology, Poznan University of Medical Sciences and Greater Poland Oncology Center, Poznan, PolandMs Pietkun is an MD and PhD student in the Chair of Regenerative Medicine, Department of Tissue Engineering and Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Czajkowski is a Professor and Head of the Department of Dermatology, Sexually Transmitted Diseases and Immunodermatology, Nicolaus Copernicus University Collegium Medicum, Bydgoszcz, PolandDr Drewa is Professor and Head of the Chair of Regenerative Medicine, Department of Tissue Engineering, Nicolaus Copernicus University Collegium Medicum in Bydgoszcz, Poland, and Head of the Urology and Oncological Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
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Kloskowski T, Jundziłł A, Kowalczyk T, Nowacki M, Bodnar M, Marszałek A, Pokrywczyńska M, Frontczak-Baniewicz M, Kowalewski TA, Chłosta P, Drewa T. Ureter regeneration-the proper scaffold has to be defined. PLoS One 2014; 9:e106023. [PMID: 25162415 PMCID: PMC4146565 DOI: 10.1371/journal.pone.0106023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 07/27/2014] [Indexed: 12/22/2022] Open
Abstract
The aim of this study was to compare two different acellular scaffolds: natural and synthetic, for urinary conduit construction and ureter segment reconstruction. Acellular aortic arch (AAM) and poly(L-lactide-co-caprolactone) (PLCL) were used in 24 rats for ureter reconstruction in both tested groups. Follow-up period was 4 weeks. Intravenous pyelography, histological and immunohistochemical analysis were performed. All animals survived surgical procedures. Patent uretero-conduit junction was observed only in one case using PLCL. In case of ureter segment reconstruction ureters were patent in one case using AAM and in four cases using PLCL scaffolds. Regeneration of urothelium layer and focal regeneration of smooth muscle layer was observed on both tested scaffolds. Obtained results indicates that synthetic acellular PLCL scaffolds showed better properties for ureter reconstruction than naturally derived acellular aortic arch.
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Affiliation(s)
- Tomasz Kloskowski
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
- * E-mail:
| | - Arkadiusz Jundziłł
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Tomasz Kowalczyk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Maciej Nowacki
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Magdalena Bodnar
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Andrzej Marszałek
- Department of Clinical Pathomorphology, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Marta Pokrywczyńska
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
| | | | - Tomasz A. Kowalewski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Piotr Chłosta
- Urology Department, Jagiellonian University, Krakow, Poland
| | - Tomasz Drewa
- Chair of Regenerative Medicine, Department of Tissue Engineering, Collegium Medicum, Nicolaus Copernicus University, Bydgoszcz, Poland
- Urology Department, Nicolaus Copernicus Hospital, Toruń, Poland
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26
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Nowacki M, Kloskowski T, Pokrywczyńska M, Nazarewski Ł, Jundziłł A, Pietkun K, Tyloch D, Rasmus M, Warda K, Habib SL, Drewa T. Is regenerative medicine a new hope for kidney replacement? J Artif Organs 2014; 17:123-34. [DOI: 10.1007/s10047-014-0767-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Accepted: 04/01/2014] [Indexed: 12/24/2022]
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