1
|
Zhou Q, Yang F, Li N, Ren YF, Yu Y. Healing outcomes of open versus closed flap procedures for collagen membrane coverage following immediate dental implant placements with simultaneous guided tissue regeneration. J Dent 2024; 141:104735. [PMID: 37804939 DOI: 10.1016/j.jdent.2023.104735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 09/29/2023] [Accepted: 10/01/2023] [Indexed: 10/09/2023] Open
Abstract
OBJECTIVE To compare the outcomes of open healing to complete closure for collagen membrane coverage for immediate implant placements with simultaneous guided bone regeneration (GBR) in two retrospective cohorts. METHODS The subjects included 118 patients who received Bio-Gide® collagen membrane coverage for immediate implant placements and GBR in 20 anterior and 98 posterior teeth. For 58 patients, gingival flaps were released to achieve full coverage of collagen membrane (CC group). For 60 patients, no efforts were made to release the gingival flaps and collagen membrane was left exposed for open healing (OH group). Antibiotics and analgesics were prescribed for 7 days after surgery. The width of crestal open wounds were measured after surgery (W0), and at 1, 2 and 16 weeks (W16). Changes in bone mass were assessed by cone-beam computed tomography after implant placement and again at W16. Gingival and bone tissues over the implant cover screws were harvested and assessed for 16 patients in the OH group at W16. RESULTS No wound dehiscence occurred in the CC group from W0 to W16. Both the vertical and horizontal bone dimension changes were not significantly different between the OH and CC group. For the OH group, soft tissue was completely healed at W16 when the initial wound widths were ≤6 mm. For those with initial wound widths ≥ 7 mm, the cover screws were exposed in 5/16 patients at W16 but did not affect the final restorations. Tissue staining showed keratinized mucosa and new bone formation above the dental implant in the OH group. CONCLUSION Open healing achieved healing outcomes similar to those of complete closure for collagen membrane coverage following immediate implant placements. CLINICAL SIGNIFICANCE For immediate implant placement requiring bone grafting and collagen membrane coverage, it is unnecessary to release the gingival flaps or use tissue grafts to achieve full coverage of the crestal wounds. Open healing with exposed membrane could achieve similar outcomes with less pain and swelling.
Collapse
Affiliation(s)
- Qianrong Zhou
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fei Yang
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ni Li
- The College of Medical Technology, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Yan-Fang Ren
- Eastman Institute for Oral Health, University of Rochester Medical Center, Rochester, NY 14620, USA.
| | - Youcheng Yu
- Department of Stomatology, Zhongshan Hospital, Fudan University, Shanghai, China.
| |
Collapse
|
2
|
Martin‐Piedra MA, Carmona G, Campos F, Carriel V, Fernández‐González A, Campos A, Cuende N, Garzón I, Gacto P, Alaminos M. Histological assessment of nanostructured fibrin-agarose skin substitutes grafted in burnt patients. A time-course study. Bioeng Transl Med 2023; 8:e10572. [PMID: 38023713 PMCID: PMC10658487 DOI: 10.1002/btm2.10572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/10/2023] [Accepted: 06/14/2023] [Indexed: 12/01/2023] Open
Abstract
A previously developed fibrin-agarose skin model-UGRSKIN-showed promising clinical results in severely burnt patients. To determine the histological parameters associated to the biocompatibility and therapeutic effects of this model, we carried out a comprehensive structural and ultrastructural study of UGRSKIN grafted in severely burnt patients after 3 months of follow-up. The grafted epidermis was analogue to native human skin from day 30th onward, revealing well-structured strata with well-differentiated keratinocytes expressing CK5, CK8, CK10, claudin, plakoglobin, filaggrin, and involucrin in a similar way to controls, suggesting that the epidermis was able to mature and differentiate very early. Melanocytes and Langerhans cells were found from day 30th onward, together with a basement membrane, abundant hemidesmosomes and lack of rete ridges. At the dermal layer, we found an interface between the grafted skin and the host tissue at day 30th, which tended to disappear with time. The grafted superficial dermis showed a progressive increase in properly-oriented collagen fibers, elastic fibers and proteoglycans, including decorin, similarly to control dermis at day 60-90th of in vivo follow-up. Blood vessels determined by CD31 and SMA expression were more abundant in grafted skin than controls, whereas lymphatic vessels were more abundant at day 90th. These results contribute to shed light on the histological parameters associated to biocompatibility and therapeutic effect of the UGRSKIN model grafted in patients and demonstrate that the bioengineered skin grafted in patients is able to mature and differentiate very early at the epithelial level and after 60-90 days at the dermal level.
Collapse
Affiliation(s)
- Miguel Angel Martin‐Piedra
- Tissue Engineering Group, Department of HistologyUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
| | - Gloria Carmona
- Andalusian Network for the Design and Translation of Advanced Therapies (former Andalusian Initiative for Advanced Therapies) ‐ Fundación Andaluza Progreso y Salud, Junta de Andalucía, Seville, Spain; Andalusian Transplant Coordination, Servicio Andaluz de SaludSevilleSpain
- Doctoral program in BiomedicineUniversity of GranadaGranadaSpain
| | - Fernando Campos
- Tissue Engineering Group, Department of HistologyUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
| | - Víctor Carriel
- Tissue Engineering Group, Department of HistologyUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
| | - Ana Fernández‐González
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
- Andalusian Network for the Design and Translation of Advanced Therapies (former Andalusian Initiative for Advanced Therapies) ‐ Fundación Andaluza Progreso y Salud, Junta de Andalucía, Seville, Spain; Andalusian Transplant Coordination, Servicio Andaluz de SaludSevilleSpain
- Unidad de Producción Celular e Ingeniería TisularHospital Universitario Virgen de las NievesGranadaSpain
| | - Antonio Campos
- Tissue Engineering Group, Department of HistologyUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
| | - Natividad Cuende
- Andalusian Network for the Design and Translation of Advanced Therapies (former Andalusian Initiative for Advanced Therapies) ‐ Fundación Andaluza Progreso y Salud, Junta de Andalucía, Seville, Spain; Andalusian Transplant Coordination, Servicio Andaluz de SaludSevilleSpain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of HistologyUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
| | | | - Miguel Alaminos
- Tissue Engineering Group, Department of HistologyUniversity of GranadaSpain
- Instituto de Investigación Biosanitaria ibs.GRANADAGranadaSpain
| |
Collapse
|
3
|
Bugueno IM, Batool F, Keller L, Kuchler-Bopp S, Benkirane-Jessel N, Huck O. Porphyromonas gingivalis bypasses epithelial barrier and modulates fibroblastic inflammatory response in an in vitro 3D spheroid model. Sci Rep 2018; 8:14914. [PMID: 30297793 PMCID: PMC6175856 DOI: 10.1038/s41598-018-33267-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 09/25/2018] [Indexed: 02/07/2023] Open
Abstract
Porphyromonas gingivalis-induced inflammatory effects are mostly investigated in monolayer cultured cells. The aim of this study was to develop a 3D spheroid model of gingiva to take into account epithelio-fibroblastic interactions. Human gingival epithelial cells (ECs) and human oral fibroblasts (FBs) were cultured by hanging drop method to generate 3D microtissue (MT) whose structure was analyzed on histological sections and the cell-to-cell interactions were observed by scanning and transmission electron microscopy (SEM and TEM). MTs were infected by P. gingivalis and the impact on cell death (Apaf-1, caspase-3), inflammatory markers (TNF-α, IL-6, IL-8) and extracellular matrix components (Col-IV, E-cadherin, integrin β1) was evaluated by immunohistochemistry and RT-qPCR. Results were compared to those observed in situ in experimental periodontitis and in human gingival biopsies. MTs exhibited a well-defined spatial organization where ECs were organized in an external cellular multilayer, while, FBs constituted the core. The infection of MT demonstrated the ability of P. gingivalis to bypass the epithelial barrier in order to reach the fibroblastic core and induce disorganization of the spheroid structure. An increased cell death was observed in fibroblastic core. The development of such 3D model may be useful to define the role of EC–FB interactions on periodontal host-immune response and to assess the efficacy of new therapeutics.
Collapse
Affiliation(s)
- Isaac Maximiliano Bugueno
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Humann, Strasbourg, 67000, France.,Université de Strasbourg (UDS), Faculté de Chirurgie-dentaire, 8 rue Sainte-Elisabeth, Strasbourg, 67000, France
| | - Fareeha Batool
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Humann, Strasbourg, 67000, France.,Université de Strasbourg (UDS), Faculté de Chirurgie-dentaire, 8 rue Sainte-Elisabeth, Strasbourg, 67000, France
| | - Laetitia Keller
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Humann, Strasbourg, 67000, France.,Université de Strasbourg (UDS), Faculté de Chirurgie-dentaire, 8 rue Sainte-Elisabeth, Strasbourg, 67000, France
| | - Sabine Kuchler-Bopp
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Humann, Strasbourg, 67000, France
| | - Nadia Benkirane-Jessel
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Humann, Strasbourg, 67000, France.,Université de Strasbourg (UDS), Faculté de Chirurgie-dentaire, 8 rue Sainte-Elisabeth, Strasbourg, 67000, France
| | - Olivier Huck
- INSERM (French National Institute of Health and Medical Research), UMR 1260, Regenerative Nanomedicine (RNM), Fédération de Médecine Translationnelle de Strasbourg (FMTS), 11 rue Humann, Strasbourg, 67000, France. .,Université de Strasbourg (UDS), Faculté de Chirurgie-dentaire, 8 rue Sainte-Elisabeth, Strasbourg, 67000, France. .,Hôpitaux Universitaires de Strasbourg (HUS), Department of Periodontology, 1 place de l'Hôpital, Strasbourg, 67000, France.
| |
Collapse
|
4
|
Rahimi C, Rahimi B, Padova D, Rooholghodos SA, Bienek DR, Luo X, Kaufman G, Raub CB. Oral mucosa-on-a-chip to assess layer-specific responses to bacteria and dental materials. BIOMICROFLUIDICS 2018; 12:054106. [PMID: 30310527 PMCID: PMC6158033 DOI: 10.1063/1.5048938] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/06/2018] [Indexed: 05/24/2023]
Abstract
The human oral mucosa hosts a diverse microbiome and is exposed to potentially toxic biomaterials from dental restoratives. Mucosal health is partly determined by cell and tissue responses to challenges such as dental materials and pathogenic bacteria. An in vitro model to rapidly determine potential layer-specific responses would lead to a better understanding of mucosal homeostasis and pathology. Therefore, this study aimed to develop a co-cultured microfluidic mucosal model on-a-chip to rapidly assess mucosal remodeling and the responses of epithelial and subepithelial layers to challenges typically found in the oral environment. A gingival fibroblast-laden collagen hydrogel was assembled in the central channel of a three-channel microfluidic chamber with interconnecting pores, followed by a keratinocyte layer attached to the collagen exposed in the pores. This configuration produced apical and subepithelial side channels capable of sustaining flow. Keratinocyte, fibroblast, and collagen densities were optimized to create a co-culture tissue-like construct stable over one week. Cells were stained and imaged with epifluorescence microscopy to confirm layer characteristics. As proof-of-concept, the mucosal construct was exposed separately to a dental monomer, 2-hydroxylethyl methacrylate (HEMA), and the oral bacteria Streptococcus mutans. Exposure to HEMA lowered mucosal cell viability, while exposure to the bacteria lowered trans-epithelial electrical resistance. These findings suggest that the oral mucosa-on-a-chip is useful for studying oral mucosal interactions with bacteria and biomaterials with a histology-like view of the tissue layers.
Collapse
Affiliation(s)
- Christopher Rahimi
- Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington, District of Columbia 20064, USA
| | - Benjamin Rahimi
- Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington, District of Columbia 20064, USA
| | - Dominic Padova
- Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington, District of Columbia 20064, USA
| | - Seyed A. Rooholghodos
- Department of Mechanical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington, District of Columbia 20064, USA
| | - Diane R. Bienek
- ADA Foundation, Volpe Research Center, 100 Bureau Drive, Stop #8546, Gaithersburg, Maryland 20899, USA
| | - Xiaolong Luo
- Department of Mechanical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington, District of Columbia 20064, USA
| | - Gili Kaufman
- ADA Foundation, Volpe Research Center, 100 Bureau Drive, Stop #8546, Gaithersburg, Maryland 20899, USA
| | - Christopher B. Raub
- Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington, District of Columbia 20064, USA
| |
Collapse
|
5
|
Comparative Study of Shrinkage in Human Skin, Artificial Human Skin, and Mouse Skin. Am J Dermatopathol 2018; 40:240-246. [DOI: 10.1097/dad.0000000000000951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
6
|
Martin-Piedra MA, Garzón I, Gómez-Sotelo A, Garcia-Abril E, Jaimes-Parra BD, López-Cantarero M, Alaminos M, Campos A. Generation and Evaluation of Novel Stromal Cell-Containing Tissue Engineered Artificial Stromas for the Surgical Repair of Abdominal Defects. Biotechnol J 2017; 12. [PMID: 28869335 DOI: 10.1002/biot.201700078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 08/26/2017] [Indexed: 12/25/2022]
Abstract
Repair of abdominal wall defects is one of the major clinical challenges in abdominal surgery. Most biomaterials are associated to infection and severe complications, making necessary safer and more biocompatible approaches. In the present work, the adequate mechanical properties of synthetic polymer meshes with tissue-engineered matrices containing stromal mesenchymal cells is combined to generate a novel cell-containing tissue-like artificial stroma (SCTLAS) for use in abdominal wall repair. SCTLAS consisting on fibrin-agarose hydrogels seeded with stromal cells and reinforced with commercial surgical meshes (SM) are evaluated in vitro and in vivo in animal models of abdominal wall defect. Inflammatory cells, collagen, and extracellular matrix (ECM) components are analyzed and compared with grafted SM. Use of SCTLAS results in less inflammation and less fibrosis than SM, with most ECM components being very similar to control abdominal wall tissues. Cell migration and ECM remodeling within SCTLAS is comparable to control tissues. The use of SCTLAS could contribute to reduce the side-effects associated to currently available SM and regenerated tissues are more similar to control abdominal wall tissues. Bioengineered SCTLAS could contribute to a safer treatment of abdominal wall defects with higher biocompatibility than currently available SM.
Collapse
Affiliation(s)
- Miguel A Martin-Piedra
- Tissue Engineering Group, Department of Histology, School of Medicine, University of Granada, Spain, and Instituto de Investigación Biosanitaria ibs.GRANADA, Avda. de la Ilustración, 11, Granada 18016, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, School of Medicine, University of Granada, Spain, and Instituto de Investigación Biosanitaria ibs.GRANADA, Avda. de la Ilustración, 11, Granada 18016, Spain
| | - Ana Gómez-Sotelo
- Division of General and Digestive Surgery, Valme University Hospital, Sevilla, Spain
| | | | - Boris D Jaimes-Parra
- Tissue Engineering Group, Department of Histology, School of Medicine, University of Granada, Spain, and Instituto de Investigación Biosanitaria ibs.GRANADA, Avda. de la Ilustración, 11, Granada 18016, Spain
| | - Manuel López-Cantarero
- University Hospital Complex of Granada and Department of Surgery, University of Granada, Granada, Spain
| | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, School of Medicine, University of Granada, Spain, and Instituto de Investigación Biosanitaria ibs.GRANADA, Avda. de la Ilustración, 11, Granada 18016, Spain
| | - Antonio Campos
- Tissue Engineering Group, Department of Histology, School of Medicine, University of Granada, Spain, and Instituto de Investigación Biosanitaria ibs.GRANADA, Avda. de la Ilustración, 11, Granada 18016, Spain
| |
Collapse
|
7
|
Engineered three-dimensional rabbit oral epithelial-mesenchymal-muscular hybrid sheets. Int J Oral Sci 2016; 8:145-54. [PMID: 27341388 PMCID: PMC5113088 DOI: 10.1038/ijos.2016.16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2016] [Indexed: 11/09/2022] Open
Abstract
Regenerative muscles are required for swallowing and mastication, and are important for functional recovery from diseases involving oral muscular defects. Therefore, we generated three-layer hybrid sheets, similar to oral mucosal structures containing submucosal muscles, using rabbit oral mucosa epithelial, mesenchymal, and myoblastic progenitor cells, and examined the structural proteins. Each cell type was obtained from rabbit oral mucosa using enzymatic digestion. Isolated mesenchymal and myoblastic cells were multi-differentiated into osteoblasts, adipocytes, and chondrocytes or myotubes. Isolated epithelial cells were cultured on collagen gels containing isolated mesenchymal cells for 2 weeks, and these epithelial-mesenchymal cell sheets were laminated onto myoblastic cell sheets. The engineered hybrid sheets were multi-stratified in the epithelial and myoblastic layers in a time-dependent manner, expressing intermediate cytoskeletal filament proteins of epithelium and muscle. Hybrid sheets also expressed extracellular matrix basement membrane proteins. Immature cell markers for epithelial and myoblastic cells were observed continuously in hybrid sheet cultures. We established engineered three-dimensional rabbit oral mucosa hybrid sheets containing each immature cell type in vitro.
Collapse
|
8
|
Martín-Piedra MA, Alaminos M, Fernández-Valadés-Gámez R, España-López A, Liceras-Liceras E, Sánchez-Montesinos I, Martínez-Plaza A, Sánchez-Quevedo MC, Fernández-Valadés R, Garzón I. Development of a multilayered palate substitute in rabbits: a histochemical ex vivo and in vivo analysis. Histochem Cell Biol 2016; 147:377-388. [PMID: 27600719 DOI: 10.1007/s00418-016-1489-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2016] [Indexed: 01/08/2023]
Abstract
Current tissue engineering technology focuses on developing simple tissues, whereas multilayered structures comprising several tissue types have rarely been described. We developed a highly biomimetic multilayered palate substitute with bone and oral mucosa tissues using rabbit cells and biomaterials subjected to nanotechnological techniques based on plastic compression. This novel palate substitute was autologously grafted in vivo, and histological and histochemical analyses were used to evaluate biointegration, cell function, and cell differentiation in the multilayered palate substitute. The three-dimensional structure of the multilayered palate substitute was histologically similar to control tissues, but the ex vivo level of cell and tissue differentiation were low as determined by the absence of epithelial differentiation although cytokeratins 4 and 13 were expressed. In vivo grafting was associated with greater cell differentiation, epithelial stratification, and maturation, but the expression of cytokeratins 4, 13, 5, and 19 at did not reach control tissue levels. Histochemical analysis of the oral mucosa stroma and bone detected weak signals for proteoglycans, elastic and collagen fibers, mineralization deposits and osteocalcin in the multilayered palate substitute cultured ex vivo. However, in vivo grafting was able to induce cell and tissue differentiation, although the expression levels of these components were always significantly lower than those found in controls, except for collagen in the bone layer. These results suggest that generation of a full-thickness multilayered palate substitute is achievable and that tissues become partially differentiated upon in vivo grafting.
Collapse
Affiliation(s)
- M A Martín-Piedra
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| | - M Alaminos
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| | - R Fernández-Valadés-Gámez
- Division of Oral and Maxillofacial Surgery, Gregorio Marañón University General Hospital, Madrid, Spain.
- PhD Program in Clinical Medicine and Public Health, University of Granada, Granada, Spain.
| | - A España-López
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University of Granada Hospital Complex, Granada, Spain
| | - E Liceras-Liceras
- Division of Pediatric Surgery, University of Granada Hospital Complex, Granada, Spain
| | - I Sánchez-Montesinos
- Department of Human Anatomy and Embryology, University of Granada, Granada, Spain
| | - A Martínez-Plaza
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University of Granada Hospital Complex, Granada, Spain
| | - M C Sánchez-Quevedo
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| | - R Fernández-Valadés
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University of Granada Hospital Complex, Granada, Spain
- Division of Pediatric Surgery, University of Granada Hospital Complex, Granada, Spain
| | - I Garzón
- Department of Histology (Tissue Engineering Group), University of Granada and research institute ibs.GRANADA, Granada, Spain
| |
Collapse
|
9
|
García-Martínez L, Campos F, Godoy-Guzmán C, Del Carmen Sánchez-Quevedo M, Garzón I, Alaminos M, Campos A, Carriel V. Encapsulation of human elastic cartilage-derived chondrocytes in nanostructured fibrin-agarose hydrogels. Histochem Cell Biol 2016; 147:83-95. [PMID: 27586854 DOI: 10.1007/s00418-016-1485-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/23/2016] [Indexed: 12/20/2022]
Abstract
The generation of elastic cartilage substitutes for clinical use is still a challenge. In this study, we investigated the possibility of encapsulating human elastic cartilage-derived chondrocytes (HECDC) in biodegradable nanostructured fibrin-agarose hydrogels (NFAH). Viable HECDC from passage 2 were encapsulated in NFAH and maintained in culture conditions. Constructs were harvested for histochemical and immunohistochemical analyses after 1, 2, 3, 4 and 5 weeks of development ex vivo. Histological results demonstrated that it is possible to encapsulate HECDC in NFAH, and that HECDC were able to proliferate and form cells clusters expressing S-100 and vimentin. Additionally, histochemical and immunohistochemical analyses of the extracellular matrix (ECM) showed that HECDC synthetized different ECM molecules (type I and II collagen, elastic fibers and proteoglycans) in the NFAH ex vivo. In conclusion, this study suggests that NFAH can be used to generate biodegradable and biologically active constructs for cartilage tissue engineering applications. However, further cell differentiation, biomechanical and in vivo studies are still needed.
Collapse
Affiliation(s)
- Laura García-Martínez
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain.,Doctoral Program in Biomedicine, University of Granada, Granada, Spain
| | - Fernando Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Carlos Godoy-Guzmán
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain.,Unit of Histology (CIBAP), School of Medicine, Universidad de Santiago de Chile, (USACH), Santiago, Chile
| | - María Del Carmen Sánchez-Quevedo
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Ingrid Garzón
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Miguel Alaminos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Antonio Campos
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain
| | - Víctor Carriel
- Department of Histology, Tissue Engineering Group, Faculty of Medicine, University of Granada and Instituto de Investigación Biosanitaria ibis. GRANADA, Granada, Spain.
| |
Collapse
|
10
|
Camisasca DR, da Rós Gonçalves L, Soares MR, Sandim V, Nogueira FCS, Garcia CHS, Santana R, de Oliveira SP, Buexm LA, de Faria PAS, Dias FL, Pereira DDA, Zingali RB, Alves G, Lourenço SQC. A proteomic approach to compare saliva from individuals with and without oral leukoplakia. J Proteomics 2016; 151:43-52. [PMID: 27478070 DOI: 10.1016/j.jprot.2016.07.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 07/22/2016] [Accepted: 07/26/2016] [Indexed: 11/17/2022]
Abstract
BACKGROUND Oral leukoplakia is the most common potentially malignant disorder in the oral cavity and can precede carcinoma. This study aimed to identify possible oral leukoplakia salivary biomarkers. METHODS Unstimulated saliva was collected from participants and protein concentration was determined. Proteins were then precipitated with cold acetone and separated using 2DE over a pH range of 3-10. Spot demarcation and matching were performed and protein identification was done through MS analysis. Oral leukoplakia tissues were submitted to immunohistochemistry analysis for keratin 10 (CK10). A complementary analysis of oral leukoplakias that were not included previously was performed in addition. RESULTS 226±10 spots were identified in oral leukoplakia 2DE gels, and 262±12 spots were identified in volunteers. Twenty-two spots were highly abundant in oral leukoplakias or not detected in the control group, such as apolipoprotein A1, alpha amylase, cystatins, keratin 10, and lysozyme precursor. All were identified. All oral leukoplakia cases were immunopositive for CK10, mainly in the superficial epithelial layers. CONCLUSIONS The 2DE salivary protein profiles of individuals with and without oral leukoplakia were observably different. CK10 appears to be an interesting protein and should be further studied in oral carcinogenesis. SIGNIFICANCE MS-based proteomics enables large-scale analysis of proteins. Proteomics can provide detailed descriptions of proteomes of cells and tissues, including body fluids, and appears as a powerful tool to study human disorders. Saliva is readily accessible through non invasive collection and can mirror diverse disease states. Saliva from both diseased and healthy subjects can be analyzed through 2DE and differences between groups could be found. Routine immunohistochemistry analysis confirmed one of these findings, with CK10 being positive tissues from individuals with oral leukoplakia. Therefore, the present study allows insights into development of an important potential oral cancer precursor, named oral leukoplakia. However, the results can be extrapolated and tested in other precancer states, such as proliferative verrucous leukoplakia, patients at risk of oral cancer due to lifestyle behavior and/or cancer history in the family or even those who are under surveillance after a treated primary oral cancer.
Collapse
Affiliation(s)
- Danielle Resende Camisasca
- Oral Pathology, Federal Fluminense University (UFF), R. Marques de Paraná, 303/4° andar (Hospital Universitário Antônio Pedro), Centro Niterói, Brazil, CEP: 24033-900.
| | - Lorena da Rós Gonçalves
- Serviço de Hematologia, Laboratório de Genética Aplicada, Brazilian National Cancer Institute (INCA), Hospital do Câncer I, Praça da Cruz Vermelha, 23 - 6° andar, Rio de Janeiro, RJ, Brazil, CEP: 20230-130.
| | - Márcia Regina Soares
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos daSilveira, 149/541, Cidade Universitária, Rio deJaneiro, RJ, Brazil, CEP: 21941-909.
| | - Vanessa Sandim
- Serviço de Hematologia, Laboratório de Genética Aplicada, Brazilian National Cancer Institute (INCA), Hospital do Câncer I, Praça da Cruz Vermelha, 23 - 6° andar, Rio de Janeiro, RJ, Brazil, CEP: 20230-130; Laboratório de Hemostase e Venenos e Unidade de Espectrometria de Massas e Proteômica, Instituto de Bioquímica Médica, Programa de Biologia Estrutural, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, CCS Bloco H2 sala 04, Cidade Universitária, Rio de Janeiro, RJ, Brazil, CEP 21941-902.
| | - Fábio César Sousa Nogueira
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos daSilveira, 149/541, Cidade Universitária, Rio deJaneiro, RJ, Brazil, CEP: 21941-909.
| | - Carlos Henrique Saraiva Garcia
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro (UFRJ), Av. Athos daSilveira, 149/541, Cidade Universitária, Rio deJaneiro, RJ, Brazil, CEP: 21941-909.
| | - Rodrigo Santana
- Serviço de Hematologia, Laboratório de Genética Aplicada, Brazilian National Cancer Institute (INCA), Hospital do Câncer I, Praça da Cruz Vermelha, 23 - 6° andar, Rio de Janeiro, RJ, Brazil, CEP: 20230-130.
| | - Silvia Paula de Oliveira
- Odontoclínica Central do Exército (OCEX), Praça da República, 123 - Centro, Rio de Janeiro, RJ, Brazil, CEP: 20211-340.
| | - Luisa Aguirre Buexm
- Oncology Graduate Program, Molecular Carcinogenesis Program, Research Center, Brazilian National Cancer Institute, Rua André Cavalcanti, 37, 6° andar, Centro, 20231-050 Rio de Janeiro, RJ, Brazil.
| | - Paulo Antônio Silvestre de Faria
- Pathology Division (Divisão de Patologia), Brazilian National Cancer Institute (INCA), Rua Cordeiro da Graça, 156, Rio de Janeiro, RJ, Brazil, CEP:20220-400.
| | - Fernando Luiz Dias
- Head and Neck Surgery Department, Brazilian National Cancer Institute (INCA), Hospital do Câncer I, Praça da Cruz Vermelha, 23 - 6°andar, Rio de Janeiro, RJ, Brazil, CEP:20230-130.
| | - Denise de Abreu Pereira
- Serviço de Hematologia, Laboratório de Genética Aplicada, Brazilian National Cancer Institute (INCA), Hospital do Câncer I, Praça da Cruz Vermelha, 23 - 6° andar, Rio de Janeiro, RJ, Brazil, CEP: 20230-130.
| | - Russolina B Zingali
- Rede Proteômica do Rio de Janeiro, Rio de Janeiro, Brazil; Laboratório de Hemostase e Venenos e Unidade de Espectrometria de Massas e Proteômica, Instituto de Bioquímica Médica, Programa de Biologia Estrutural, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, 373, CCS Bloco H2 sala 04, Cidade Universitária, Rio de Janeiro, RJ, Brazil, CEP 21941-902.
| | - Gilda Alves
- Serviço de Hematologia, Laboratório de Genética Aplicada, Brazilian National Cancer Institute (INCA), Hospital do Câncer I, Praça da Cruz Vermelha, 23 - 6° andar, Rio de Janeiro, RJ, Brazil, CEP: 20230-130.
| | - Simone Queiroz Chaves Lourenço
- Oral Pathology, Federal Fluminense University (UFF), R. Marques de Paraná, 303/4° andar (Hospital Universitário Antônio Pedro), Centro Niterói, Brazil, CEP: 24033-900.
| |
Collapse
|
11
|
Jaimes-Parra BD, Valle-Díaz de la Guardia F, Arrabal-Polo MÁ, Herrera-Imbroda B, Lara MF, Machuca-Santa-Cruz FJ, Campos A, Alaminos M, Crespo PV, Garzón I. Ex vivo construction of a novel model of bioengineered bladder mucosa: A preliminary study. Int J Urol 2015; 23:85-92. [PMID: 26502190 DOI: 10.1111/iju.12963] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 09/08/2015] [Indexed: 01/11/2023]
Abstract
OBJECTIVE To generate and to evaluate ex vivo a novel model of bioengineered human bladder mucosa based on fibrin-agarose biomaterials. METHODS We first established primary cultures of stromal and epithelial cells from small biopsies of the human bladder using enzymatic digestion and selective cell culture media. Then, a bioengineered substitute of the bladder lamina propria was generated using cultured stromal cells and fibrin-agarose scaffolds, and the epithelial cells were then subcultured on top to generate a complete bladder mucosa substitute. Evaluation of this substitute was carried out by cell viability and histological analyses, immunohistochemistry for key epithelial markers and transmission electron microscopy. RESULTS The results show a well-configured stroma substitute with a single-layer epithelium on top. This substitute was equivalent to the control bladder mucosa. After 7 days of ex vivo development, the epithelial layer expressed pancytokeratin, and cytokeratins CK7, CK8 and CK13, as well as filaggrin and ZO-2, with negative expression of CK4 and uroplakin III. A reduction of the expression of CK8, filaggrin and ZO-2 was found at day 14 of development. An immature basement membrane was detected at the transition between the epithelium and the lamina propria, with the presence of epithelial hemidesmosomes, interdigitations and immature desmosomes. CONCLUSIONS The present results suggest that this model of bioengineered human bladder mucosa shared structural and functional similarities with the native bladder mucosa, although the epithelial cells were not fully differentiated ex vivo. We hypothesize that this bladder mucosa substitute could have potential clinical usefulness after in vivo implantation.
Collapse
Affiliation(s)
- Boris D Jaimes-Parra
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain.,Biomedical Research Institute, University of Granada, Granada, Spain.,PhD Program in Biomedicine, University of Granada, Granada, Spain
| | | | | | | | - María F Lara
- Division of Urology and Urology Unit Research, Virgen de la Victoria Hospital, Malaga, Spain
| | | | - Antonio Campos
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain.,Biomedical Research Institute, University of Granada, Granada, Spain
| | - Miguel Alaminos
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain.,Biomedical Research Institute, University of Granada, Granada, Spain
| | - Pascual V Crespo
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain.,Biomedical Research Institute, University of Granada, Granada, Spain
| | - Ingrid Garzón
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain.,Biomedical Research Institute, University of Granada, Granada, Spain
| |
Collapse
|
12
|
Liceras-Liceras E, Garzón I, España-López A, Oliveira ACX, García-Gómez M, Martín-Piedra MÁ, Roda O, Alba-Tercedor J, Alaminos M, Fernández-Valadés R. Generation of a bioengineered autologous bone substitute for palate repair: an in vivo study in laboratory animals. J Tissue Eng Regen Med 2015; 11:1907-1914. [PMID: 26449518 DOI: 10.1002/term.2088] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 06/10/2015] [Accepted: 09/04/2015] [Indexed: 11/06/2022]
Abstract
We carried out an in vivo study to evaluate the potential usefulness of a novel bioengineered bone substitute for the repair of palate defects in laboratory rabbits, using tissue-engineering methods. Our results showed that the use of a bioengineered bone substitute was associated with more symmetrical palate growth as compared to the controls, and the length and height of the palate were very similar on both sides of the palate, with differences from negative controls 4 months after artificial bone grafting for bone length. The histological analysis revealed that the regenerated bone was well organized and expressed osteocalcin. In contrast, bone corresponding to control animals without tissue grafting was immature, with areas of osteoid tissue and remodelling, as determined by MMP-14 expression. These results suggest that bone substitutes may be a useful strategy to induce the formation of a well-structured palate bone, which could prevent the growth alterations found in cleft palate patients. This opens a door to a future clinical application of these bone substitutes. Copyright © 2015 John Wiley & Sons, Ltd.
Collapse
Affiliation(s)
- Esther Liceras-Liceras
- Division of Paediatric Surgery, University Hospital Virgen de las Nieves, Granada, Spain.,PhD programme in Biomedicine, University of Granada, Spain
| | - Ingrid Garzón
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.Granada, Spain
| | - Antonio España-López
- Craniofacial Malformations and Cleft Lip and Palate Management Unit, University Hospital Virgen de las Nieves, Granada, Spain
| | - Ana-Celeste-Ximenes Oliveira
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.Granada, Spain
| | - Miriam García-Gómez
- Division of Paediatric Surgery, University Hospital Virgen de las Nieves, Granada, Spain
| | - Miguel-Ángel Martín-Piedra
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.Granada, Spain
| | - Olga Roda
- Department of Human Anatomy and Embryology, University of Granada, Spain
| | | | - Miguel Alaminos
- Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.Granada, Spain
| | - Ricardo Fernández-Valadés
- Division of Paediatric Surgery, University Hospital Virgen de las Nieves, Granada, Spain.,Tissue Engineering Group, Department of Histology, University of Granada and Instituto de Investigación Biosanitaria ibs.Granada, Spain.,Craniofacial Malformations and Cleft Lip and Palate Management Unit, University Hospital Virgen de las Nieves, Granada, Spain
| |
Collapse
|
13
|
Viñuela-Prieto JM, Sánchez-Quevedo MC, Alfonso-Rodríguez CA, Oliveira AC, Scionti G, Martín-Piedra MA, Moreu G, Campos A, Alaminos M, Garzón I. Sequential keratinocytic differentiation and maturation in a three-dimensional model of human artificial oral mucosa. J Periodontal Res 2014; 50:658-65. [PMID: 25470318 DOI: 10.1111/jre.12247] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE Oral mucosa shortage may limit or condition some clinical approaches in maxillofacial, periodontal and implant treatment. The availability of a human oral mucosa model generated by tissue engineering could help clinicians to address the lack of oral mucosa. In this work, we carried out a sequential maturation and differentiation study of the epithelial cell layer of an artificial human oral mucosa substitute based on fibrin-agarose biomaterials with fibroblasts and keratinocytes. MATERIAL AND METHODS Histological, immunohistochemical and gene expression analyses were carried out in artificial human oral mucosa models developed and cultured for 1, 2 and 3 wk. RESULTS Artificial oral mucosa models showed expression of tight junction proteins and cytokeratins from the first week of in vitro development. Mature samples of 3 wk of development subjected to air-liquid conditions showed signs of epithelial differentiation and expressed specific RNAs and proteins corresponding to adherent and gap junctions and basement lamina. Moreover, these mature samples overexpressed some desmosomal and tight junction transcripts, with gap junction components being downregulated. CONCLUSION These results suggest that bioengineered human oral mucosa substitutes form a well-developed epithelial layer that was very similar to human native tissues. In consequence, the epithelial layer could be fully functional in these oral mucosa substitutes, thus implying that these tissues may have clinical usefulness.
Collapse
Affiliation(s)
- J M Viñuela-Prieto
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain.,PhD Programme in Biomedicine, University of Granada, Granada, Spain
| | - M C Sánchez-Quevedo
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - C A Alfonso-Rodríguez
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - A C Oliveira
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - G Scionti
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - M A Martín-Piedra
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - G Moreu
- Department of Stomatology, Faculty of Dentistry, University of Granada, Granada, Spain
| | - A Campos
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - M Alaminos
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| | - I Garzón
- Department of Histology (Tissue Engineering Group), Faculty of Medicine, University of Granada, Granada, Spain.,Instituto de Investigación Biosanitaria ibs, Granada, Spain
| |
Collapse
|
14
|
Garzón I, Miyake J, González-Andrades M, Carmona R, Carda C, Sánchez-Quevedo MDC, Campos A, Alaminos M. Wharton's jelly stem cells: a novel cell source for oral mucosa and skin epithelia regeneration. Stem Cells Transl Med 2013; 2:625-32. [PMID: 23817131 DOI: 10.5966/sctm.2012-0157] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Perinatal stem cells such as human umbilical cord Wharton's jelly stem cells (HWJSCs) are excellent candidates for tissue engineering because of their proliferation and differentiation capabilities. However, their differentiation potential into epithelial cells at in vitro and in vivo levels has not yet been reported. In this work we have studied the capability of HWJSCs to differentiate in vitro and in vivo to oral mucosa and skin epithelial cells using a bioactive three-dimensional model that mimics the native epithelial-mesenchymal interaction. To achieve this, primary cell cultures of HWJSCs, oral mucosa, and skin fibroblasts were obtained in order to generate a three-dimensional heterotypical model of artificial oral mucosa and skin based on fibrin-agarose biomaterials. Our results showed that the cells were unable to fully differentiate to epithelial cells in vitro. Nevertheless, in vivo grafting of the bioactive three-dimensional models demonstrated that HWJSCs were able to stratify and to express typical markers of epithelial differentiation, such as cytokeratins 1, 4, 8, and 13, plakoglobin, filaggrin, and involucrin, showing specific surface patterns. Electron microscopy analysis confirmed the presence of epithelial cell-like layers and well-formed cell-cell junctions. These results suggest that HWJSCs have the potential to differentiate to oral mucosa and skin epithelial cells in vivo and could be an appropriate novel cell source for the development of human oral mucosa and skin in tissue engineering protocols.
Collapse
Affiliation(s)
- Ingrid Garzón
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Martín-Cano F, Garzón I, Marañés C, Liceras E, Martín-Piedra MA, Ruiz-Montes AM, Alaminos M, Fernández-Valadés R. Histological and immunohistochemical changes in the rat oral mucosa used as an autologous urethral graft. J Pediatr Surg 2013; 48:1557-64. [PMID: 23895972 DOI: 10.1016/j.jpedsurg.2013.01.056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2012] [Revised: 01/25/2013] [Accepted: 01/26/2013] [Indexed: 11/30/2022]
Abstract
PURPOSE The purpose of this study was to determine the histological and functional (immunohistochemical) changes that take place in oral mucosa grafts implanted in the rat urethra. METHODS Urethroplasty was performed in 26 male Wistar rats weighing 250 g. All animals received autologous oral mucosa urethra grafting under general anesthesia. Samples were analyzed 10, 20, 30, 40, 50, 60, 90, and 120 days after surgery using light and scanning electron microscopy and immunofluorescence for the determination of the expression of epithelial markers (pancytokeratin, cytokeratin 1, 4, 13, and filaggrin). RESULTS Grafted oral mucosa tissues were subjected to significant histological changes from the beginning with the formation of a well-developed epithelium whose structure was comparable to the native urethra from day 60 of the surgical implant. The immunofluorescence analysis demonstrated that the cytokeratin expression profile tended to mimic the pattern of the native urethra. These data suggest that the oral mucosa is able to efficiently transdifferentiate to the urethral environment. CONCLUSIONS The efficient transdifferentiation process of the grafted oral mucosa at both the histological and immunofluorescence levels, and the absence of local complications confirm the clinical usefulness of this type of tissues for the repair of the urethra.
Collapse
Affiliation(s)
- Fatima Martín-Cano
- Department of Pediatric Surgery, University Hospital Virgen de las Nieves, Granada, Spain
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Carriel V, Garrido-Gómez J, Hernández-Cortés P, Garzón I, García-García S, Sáez-Moreno JA, Del Carmen Sánchez-Quevedo M, Campos A, Alaminos M. Combination of fibrin-agarose hydrogels and adipose-derived mesenchymal stem cells for peripheral nerve regeneration. J Neural Eng 2013; 10:026022. [PMID: 23528562 DOI: 10.1088/1741-2560/10/2/026022] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The objective was to study the effectiveness of a commercially available collagen conduit filled with fibrin-agarose hydrogels alone or with fibrin-agarose hydrogels containing autologous adipose-derived mesenchymal stem cells (ADMSCs) in a rat sciatic nerve injury model. APPROACH A 10 mm gap was created in the sciatic nerve of 48 rats and repaired using saline-filled collagen conduits or collagen conduits filled with fibrin-agarose hydrogels alone (acellular conduits) or with hydrogels containing ADMSCs (ADMSC conduits). Nerve regeneration was assessed in clinical, electrophysiological and histological studies. MAIN RESULTS Clinical and electrophysiological outcomes were more favorable with ADMSC conduits than with the acellular or saline conduits, evidencing a significant recovery of sensory and motor functions. Histological analysis showed that ADMSC conduits produce more effective nerve regeneration by Schwann cells, with higher remyelination and properly oriented axonal growth that reached the distal areas of the grafted conduits, and with intensely positive expressions of S100, neurofilament and laminin. Extracellular matrix was also more abundant and better organized around regenerated nerve tissues with ADMSC conduits than those with acellular or saline conduits. SIGNIFICANCE Clinical, electrophysiological and histological improvements obtained with tissue-engineered ADMSC conduits may contribute to enhancing axonal regeneration by Schwann cells.
Collapse
Affiliation(s)
- Víctor Carriel
- Department of Histology (Tissue Engineering Group), University of Granada, Avenida de Madrid 11, E-18012 Granada, Spain.
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Peramo A, Marcelo CL, Feinberg SE. Tissue engineering of lips and muco-cutaneous junctions: in vitro development of tissue engineered constructs of oral mucosa and skin for lip reconstruction. Tissue Eng Part C Methods 2012; 18:273-82. [PMID: 22067042 PMCID: PMC3311881 DOI: 10.1089/ten.tec.2011.0406] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 11/04/2011] [Indexed: 12/31/2022] Open
Abstract
We report for the first time the fabrication of a three-dimensional tissue structure containing, in a continuous layer, the morphological features of a lip: epidermal skin, vermillion, and oral mucosa. This tissue engineered muco-cutaneous (M/C) equivalent was manufactured using human oral and skin keratinocytes grown on an acellular, nonimmunogenic dermal equivalent (AlloDerm(®)) to produce a tissue equivalent with similar anatomic and handling properties as native human lips. Confirmation of the structural composition of the construct was performed using routine histology and immunohistochemistry by identification of epithelial markers that are differentially expressed in separate anatomic areas of the lips. These full-thickness human lip skin equivalents can be used in surgical lip reconstruction in individuals suffering from lip loss from cancer, congenital deformations, and injuries after accidents. We propose this technique can be used as a general basis for tissue engineering of M/C junctions in other parts of the body, such as anus and vagina.
Collapse
Affiliation(s)
- Antonio Peramo
- Department of Oral and Maxillofacial Surgery, University of Michigan, Ann Arbor, Michigan
| | | | - Stephen E. Feinberg
- Department of Oral and Maxillofacial Surgery, University of Michigan, Ann Arbor, Michigan
- Department of Surgery, University of Michigan, Ann Arbor, Michigan
| |
Collapse
|
18
|
Garzón I, Pérez-Köhler B, Garrido-Gómez J, Carriel V, Nieto-Aguilar R, Martín-Piedra MA, García-Honduvilla N, Buján J, Campos A, Alaminos M. Evaluation of the cell viability of human Wharton's jelly stem cells for use in cell therapy. Tissue Eng Part C Methods 2012; 18:408-19. [PMID: 22166141 DOI: 10.1089/ten.tec.2011.0508] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Human umbilical cord Wharton's jelly stem cells (HWJSCs) are gaining attention as a possible clinical source of mesenchymal stem cells for cell therapy and tissue engineering due to their high accessibility, expansion potential, and plasticity. We employed a combination of highly sensitive techniques to determine the average cell viability levels and proliferation capabilities of 10 consecutive cell passages of cultured HWJSCs and then used RNA microarrays to identify genes associated with changes in cell viability levels. We found an initial decrease in cell viability from the first to the third cell passage followed by an increase until the sixth passage and a final decrease from the sixth to tenth cell passages. The highest cell viability levels corresponded to the fifth and sixth passages. The intracellular ionic contents of potassium, sodium, and chlorine suggest that the lower cell viability levels at passages 2, 3, and 8-10 may be associated with apoptotic cell death. In fact, gene expression analysis revealed that the average cell viability was significantly associated with genes with a function in apoptotic cell death, especially pro-apoptotic FASTKD2, BNIP3L genes and anti-apoptotic TNFAIP8 and BCL2L2 genes. This correlation with both pro-apoptotic and anti-apoptotic genes suggests that there may be a complex live-death equilibrium in cultured HWJSCs kept in culture for multiple cell passages. In this study, the highest cell viability levels corresponded to the fifth and sixth HWJSC passages, suggesting that these passages should be preferentially employed in cell therapy or tissue engineering protocols using this cell type.
Collapse
Affiliation(s)
- Ingrid Garzón
- Department of Histology-Tissue Engineering Group, University of Granada, Granada, Spain
| | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Carriel V, Garzón I, Jiménez JM, Oliveira ACX, Arias-Santiago S, Campos A, Sánchez-Quevedo MC, Alaminos M. Epithelial and stromal developmental patterns in a novel substitute of the human skin generated with fibrin-agarose biomaterials. Cells Tissues Organs 2011; 196:1-12. [PMID: 22146480 DOI: 10.1159/000330682] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2011] [Indexed: 12/30/2022] Open
Abstract
Development of human skin substitutes by tissue engineering may offer new therapeutic alternatives to the use of autologous tissue grafts. For that reason, it is necessary to investigate and develop new biocompatible biomaterials that support the generation of a proper human skin construct. In this study, we generated a novel model of bioengineered human skin substitute using human cells obtained from skin biopsies and fibrin-agarose biomaterials and we evaluated this model both at the ex vivo and the in vivo levels. Once the dermal fibroblasts and the epithelial keratinocytes were isolated and expanded in culture, we used fibrin-agarose scaffolds for the development of a full-thickness human skin construct, which was evaluated after 1, 2, 3 and 4 weeks of development ex vivo. The skin substitutes were then grafted onto immune-deficient nude mice and analyzed at days 10, 20, 30 and 40 postimplantation using transmission electron microscopy, histochemistry and immunofluorescence. The results demonstrated that the fibrin-agarose artificial skin had adequate biocompatibility and proper biomechanical properties. A proper development of both the bioengineered dermis and epidermis was found after 30 days in vivo, although the tissues kept ex vivo and those implanted in the animal model for 10 or 20 days showed lower levels of differentiation. In summary, our model of fibrin-agarose skin equivalent was able to reproduce the structure and histological architecture of the native human skin, especially after long-term in vivo implantation, suggesting that these tissues could reproduce the native skin.
Collapse
Affiliation(s)
- Víctor Carriel
- Department of Histology (Tissue Engineering Group), University of Granada, Granada, Spain
| | | | | | | | | | | | | | | |
Collapse
|
20
|
Martin SS, Alaminos M, Zorn TMT, Sánchez-Quevedo MC, Garzón I, Rodriguez IA, Campos A. The effects of fibrin and fibrin-agarose on the extracellular matrix profile of bioengineered oral mucosa. J Tissue Eng Regen Med 2011; 7:10-9. [DOI: 10.1002/term.490] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 02/08/2011] [Accepted: 07/12/2011] [Indexed: 12/18/2022]
Affiliation(s)
| | - M. Alaminos
- Department of Histology; University of Granada; Granada; Spain
| | - T. M. T. Zorn
- Institute of Biomedical Sciences; University of Sao Paulo; Sao Paulo; Brazil
| | | | - I. Garzón
- Department of Histology; University of Granada; Granada; Spain
| | | | - A. Campos
- Department of Histology; University of Granada; Granada; Spain
| |
Collapse
|
21
|
Rodríguez IA, López-López MT, Oliveira ACX, Sánchez-Quevedo MC, Campos A, Alaminos M, Durán JDG. Rheological characterization of human fibrin and fibrin-agarose oral mucosa substitutes generated by tissue engineering. J Tissue Eng Regen Med 2011; 6:636-44. [DOI: 10.1002/term.466] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2010] [Revised: 02/24/2011] [Accepted: 07/05/2011] [Indexed: 01/22/2023]
Affiliation(s)
- I. A. Rodríguez
- Department of Histology B, School of Dentistry; National University of Cordoba; Argentina
| | - M. T. López-López
- Department of Applied Physics; University of Granada, Campus de Fuentenueva; Granada; Spain
| | - A. C. X. Oliveira
- Tissue Engineering Group, Department of Histology; University of Granada; Spain
| | | | - A. Campos
- Tissue Engineering Group, Department of Histology; University of Granada; Spain
| | - M. Alaminos
- Tissue Engineering Group, Department of Histology; University of Granada; Spain
| | - J. D. G. Durán
- Department of Applied Physics; University of Granada, Campus de Fuentenueva; Granada; Spain
| |
Collapse
|
22
|
Catapano G, Klein JB. It's the end of the world as we know it - An era comes to a close. Int J Artif Organs 2009; 32:831-5. [DOI: 10.1177/039139880903201201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Gerardo Catapano
- Department of Chemical Engineering and Materials, University of Calabria, Rende - Italy
| | - Jon B. Klein
- Kidney Disease Program, University of Louisville, Louisville, Kentucky - USA
| |
Collapse
|