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Tamez-Mata Y, Pedroza-Montoya FE, Martínez-Rodríguez HG, García-Pérez MM, Ríos-Cantú AA, González-Flores JR, Soto-Domínguez A, Montes-de-Oca-Luna R, Simental-Mendía M, Peña-Martínez VM, Vílchez-Cavazos F. Nerve gaps repaired with acellular nerve allografts recellularized with Schwann-like cells: Preclinical trial. J Plast Reconstr Aesthet Surg 2022; 75:296-306. [PMID: 34257032 DOI: 10.1016/j.bjps.2021.05.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 05/03/2021] [Accepted: 05/27/2021] [Indexed: 01/26/2023]
Abstract
BACKGROUND Acellular nerve allografts (ANA) recellularized with mesenchymal stem cells (MSC) or Schwann cells (SC) are, at present, a therapeutic option for peripheral nerve injuries (PNI). This study aimed to evaluate the regenerative and functional capacity of a recellularized allograft (RA) compared with autograft nerve reconstruction in PNI. METHODS Fourteen ovines were randomly included in two groups (n=7). A peroneal nerve gap 30 mm in length was excised, and nerve repair was performed by the transplantation of either an autograft or a recellularized allograft with SC-like cells. Evaluations included a histomorphological analysis of the ANA, MSC pre differentiated into SC-like cells, at one year follow-up functional limb recovery (support and gait), and nerve regeneration using neurophysiological tests and histomorphometric analysis. All evaluations were compared with the contralateral hindlimb as the control. RESULTS The nerve allograft was successfully decellularized and more than 70% of MSC were pre differentiated into SC-like cells. Functional assessment in both treated groups improved similarly over time (p <0.05). Neurophysiological results (latency, amplitude, and conduction velocity) also improved in both treated groups at twelve months. Histological results demonstrated a less organized arrangement of nerve fibers (p <0.05) with an active remyelination process (p <0.05) in both treated groups compared with controls at twelve months. CONCLUSIONS ANA recellularized with SC-like cells proved to be a successful treatment for nerve gaps. Motor recovery and nerve regeneration were satisfactorily achieved in both graft groups compared with their contralateral nontreated nerves. This approach could be useful for the clinical therapy of PNI.
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Affiliation(s)
- Y Tamez-Mata
- Traumatology and Orthopedics, Bone and Tissue Bank Division, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - F E Pedroza-Montoya
- Biochemistry and Molecular Medicine Department, Cell Therapy Division, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - H G Martínez-Rodríguez
- Biochemistry and Molecular Medicine Department, Cell Therapy Division, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - M M García-Pérez
- Plastic Surgery Service, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - A A Ríos-Cantú
- Plastic Surgery Service, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - J R González-Flores
- Plastic Surgery Service, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - A Soto-Domínguez
- Histology Department, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - R Montes-de-Oca-Luna
- Histology Department, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - M Simental-Mendía
- Traumatology and Orthopedics, Bone and Tissue Bank Division, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - V M Peña-Martínez
- Traumatology and Orthopedics, Bone and Tissue Bank Division, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González"
| | - F Vílchez-Cavazos
- Traumatology and Orthopedics, Bone and Tissue Bank Division, Universidad Autonoma de Nuevo Leon, Facultad de Medicina y Hospital Universitario "Dr. José Eleuterio González".
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García-Garza R, Salas-Treviño D, Soto-Patiño FA, González-Murillo EA, Castelán-Maldonado EE, Saucedo-Cárdenas O, Romero-Díaz VJ, Velázquez-Gauna SE, Soto-Domínguez A. Fast acetone tissue processing of human organs provides tissue characteristics equal to conventional processing. Biotech Histochem 2020; 96:20-27. [PMID: 32527160 DOI: 10.1080/10520295.2020.1752935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Routine preparation of paraffin embedded tissue for histopathological diagnosis, here termed conventional histological technique (CT), whether performed manually or using an automated system, requires approximately 12 h. We developed earlier a rapid acetone dehydration technique (AT) for processing biopsies of nervous tissue that meets requirements for preserving tissue morphology and staining properties, and reduces processing time to 3.3 h. We compared the morphology and staining properties of human organ biopsies including adrenal gland, liver, ovary, pancreas, prostate, testis and thyroid prepared using both AT and CT. Following fixation with 10% formaldehyde and processing by either AT or CT, sections were stained using routine and special staining, and immunohistochemical methods. We evaluated nuclear and cytoplasmic staining, staining intensity, sharpness of images and presence of artifacts such as cracking and folding. AT preserved the morphology and staining properties of the tissues as well as CT. Consequently, the rapid AT procedure is a promising alternative technique for tissue processing.
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Affiliation(s)
- R García-Garza
- Department of Histology, Faculty of Medicine, Autonomous University of Coahuila , Torreón, Coah, México
| | - D Salas-Treviño
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México
| | - F A Soto-Patiño
- Department of Pathological Anatomy, Northeast National Medical Center, Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - E A González-Murillo
- Department of Pathological Anatomy, Northeast National Medical Center, Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - E E Castelán-Maldonado
- Department of Pathological Anatomy, Northeast National Medical Center, Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - O Saucedo-Cárdenas
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México.,Department of Molecular Genetics, Northeast Biomedical Research Centre of the Mexican Institute of Social Security , Monterrey, Nuevo León, México
| | - V J Romero-Díaz
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México
| | - S E Velázquez-Gauna
- Department of Embryology, Faculty of Medicine, Autonomous University of Coahuila , Torreón, Coah, México
| | - A Soto-Domínguez
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León , Monterrey, Nuevo León, México
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Dávila-Martínez C, Castillo-Velázquez U, Soto-Domínguez A, Nevárez-Garza AM, Arce-Mendoza AY, Hernandez-Vidal G, Zamora-Avila DE, Rodriguez-Tovar LE. Immunohistochemical localization of TNF-α and IL-4 in granulomas of immunocompetent and immunosuppressed New Zealand white rabbits infected with Encephalitozoon cuniculi. Cytokine 2020; 130:155055. [PMID: 32182455 DOI: 10.1016/j.cyto.2020.155055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/14/2020] [Accepted: 02/27/2020] [Indexed: 11/21/2022]
Abstract
Encephalitozoon cuniculi is a fungi-related, obligate, zoonotic, spore-forming intracellular eukaryotic microorganism. This emerging pathogen causes granulomas to form in the brain and kidneys of infected individuals. The objective of the current study was to detect the distribution of TNF-α- and IL-4-positive cells using immunohistochemistry within these granulomas in both infected immunocompetent (group A) and immunosuppressed (group B) New Zealand white rabbits. In the brain, labeled TNF-α immune cells were mainly located in the granuloma peripheries in group B. Granulomas examined in the kidneys of groups A and B were TNF-α positive, but were significantly different (p < 0.001) when compared with the brain. IL-4-producing immune cells in the brain and kidneys were disseminated within granulomas in groups A and B; however, no significant difference (p > 0.05), was observed. IL-4 positive cells were more numerous in brain sections of group B and differed significantly (p < 0.05) when compared with kidneys. Granulomas were not observed in control animals (groups C and D). In conclusion, we identified TNF-α positive cells in both the brain and kidneys of immunocompetent and immunosuppressed animals; IL-4 positive cells were numerous in the brains of immunosuppressed rabbits; however, in terms of percentage were numerous in the brains of immunocompetent rabbits. Immunosuppression appeared to stimulate a change in the cellular phenotype of Th1- to Th2-like granulomas in the brain and kidneys via an unknown mechanism. Expression of pro- and pre-inflammatory cytokines in microsporidian granulomas suggests a mechanism by which E. cuniculi evades the immune response, causing more severe disease. These results increase our understanding of TNF-α and IL-4-positive cells within the E. cuniculi granuloma microenvironment.
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Affiliation(s)
- C Dávila-Martínez
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria y Zootecnia, UANL, General Escobedo, N. L. C.P. 66050, Mexico
| | - U Castillo-Velázquez
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria y Zootecnia, UANL, General Escobedo, N. L. C.P. 66050, Mexico
| | - A Soto-Domínguez
- Departamento de Histología, Facultad de Medicina, UANL, Monterrey, N. L. C.P. 64460, Mexico
| | - A M Nevárez-Garza
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria y Zootecnia, UANL, General Escobedo, N. L. C.P. 66050, Mexico
| | - A Y Arce-Mendoza
- Cuerpo Académico de Inmunología Clínica y Dermatología, Facultad de Medicina, UANL, Col. Mitras Centro, Monterrey, N. L. C.P. 64460, Mexico
| | - G Hernandez-Vidal
- Cuerpo Académico de Patobiología, Facultad de Medicina Veterinaria y Zootecnia, UANL, General Escobedo, N. L. C.P. 66050, Mexico
| | - D E Zamora-Avila
- Cuerpo Académico de Epidemiologia Veterinaria, Facultad de Medicina Veterinaria y Zootecnia, UANL, General Escobedo, N. L. C.P. 66050, Mexico
| | - L E Rodriguez-Tovar
- Cuerpo Académico de Zoonosis y Enfermedades Emergentes, Facultad de Medicina Veterinaria y Zootecnia, UANL, General Escobedo, N. L. C.P. 66050, Mexico.
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Soto-Domínguez A, Dávila-Martínez C, Castillo-Velázquez U, Nevárez-Garza A, Rodríguez-Rocha H, Saucedo-Cárdenas O, Arce Mendoza A, Zarate-Ramos J, Rodríguez-Tovar L. Variation of the CD4, CD8, and MHC II cell population in granulomas of immunocompetent and immunosuppressed rabbits in Encephalitozoon cuniculi infection. Comp Immunol Microbiol Infect Dis 2020; 68:101387. [DOI: 10.1016/j.cimid.2019.101387] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 10/31/2019] [Accepted: 11/08/2019] [Indexed: 12/31/2022]
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García-Pérez MM, Martínez-Rodríguez HG, López-Guerra GG, Soto-Domínguez A, Said-Fernández SL, Morales-Avalos R, Elizondo-Omaña RE, Montes-de-Oca-Luna R, Guzmán-López S, Castillo-Galván ML, Mendoza-Lemus OF, Vílchez-Cavazos F. A modified chemical protocol of decellularization of rat sciatic nerve and its recellularization with mesenchymal differentiated schwann-like cells: morphological and functional assessments. Histol Histopathol 2016; 32:779-792. [PMID: 27858399 DOI: 10.14670/hh-11-844] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The functional reconstruction of large neural defects usually requires the use of peripheral nerve autografts, though these have certain limitations. As a result, interest in new alternatives for autograft development has risen. The acellular peripheral nerve graft is an alternative for peripheral nerve injury repair, but to date there is not a standardized chemical decellularization method widely accepted. The objective of this study was to propose a modified chemical protocol of decellularization of rat sciatic nerve and its recellularization in vitro with mesenchimal differentiated Schwann-like cells. After the transplantation, an evaluation of its regeneration was performed using morphological and functional tests. The study consisted of two phases; in phase 1, different concentrations and times of exposure of rat sciatic nerves to detergents were tested, to establish a modified chemical protocol for nerve decellularization. The chemical treatment with 3% triton X-100 and 4% sodium deoxycholate for 15 days allowed a complete decellularization whilst conserving the extracellular matrix of the harvested nerve. In phase 2, the decellularized and recellularized alografts were compared against autografts. The morphological analysis showed a higher positivity to specific myelin antibodies in the recellularized group compared to the autograft. There were no differences in this parameter between the control limb and the experimental limb (recellularized group). The functional analysis showed no statistical differences at week 15 in the Sciatic Function Index in the autograft group vs the other groups. This study sets the morphological and functional bases for posterior studies about nerve defects regeneration in humans.
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Affiliation(s)
- M M García-Pérez
- Plastic Surgery Service, University Hospital "Dr. José. Eleuterio González", University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - H G Martínez-Rodríguez
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - G G López-Guerra
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - A Soto-Domínguez
- Department of Histology, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - S L Said-Fernández
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - R Morales-Avalos
- Bone and Tissue Bank, Orthopedics and Traumatology Service, University Hospital "Dr. José. Eleuterio González", University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México.,Department of Human Anatomy, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - R E Elizondo-Omaña
- Department of Human Anatomy, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - R Montes-de-Oca-Luna
- Department of Histology, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - S Guzmán-López
- Department of Human Anatomy, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - M L Castillo-Galván
- Department of Human Anatomy, Faculty of Medicine, University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - O F Mendoza-Lemus
- Bone and Tissue Bank, Orthopedics and Traumatology Service, University Hospital "Dr. José. Eleuterio González", University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México
| | - F Vílchez-Cavazos
- Bone and Tissue Bank, Orthopedics and Traumatology Service, University Hospital "Dr. José. Eleuterio González", University Autonomous of Nuevo León (U.A.N.L.), Monterrey, Nuevo León, México.
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6
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Simental-Mendía M, Lara-Arias J, Álvarez-Lozano E, Said-Fernández S, Soto-Domínguez A, Padilla-Rivas GR, Martínez-Rodríguez HG. Cotransfected human chondrocytes: over-expression of IGF-I and SOX9 enhances the synthesis of cartilage matrix components collagen-II and glycosaminoglycans. ACTA ACUST UNITED AC 2015; 48:1063-70. [PMID: 26445237 PMCID: PMC4661021 DOI: 10.1590/1414-431x20154732] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 07/08/2015] [Indexed: 01/19/2023]
Abstract
Damage to cartilage causes a loss of type II collagen (Col-II) and glycosaminoglycans
(GAG). To restore the original cartilage architecture, cell factors that stimulate
Col-II and GAG production are needed. Insulin-like growth factor I
(IGF-I) and transcription factor SOX9are
essential for the synthesis of cartilage matrix, chondrocyte proliferation, and
phenotype maintenance. We evaluated the combined effect of IGF-I and
SOX9 transgene expression on Col-II and GAG production by
cultured human articular chondrocytes. Transient transfection and cotransfection were
performed using two mammalian expression plasmids (pCMV-SPORT6), one for each
transgene. At day 9 post-transfection, the chondrocytes that were over-expressing
IGF-I/SOX9 showed 2-fold increased mRNA
expression of the Col-II gene, as well as a 57% increase in Col-II
protein, whereas type I collagen expression (Col-I) was decreased by
59.3% compared with controls. The production of GAG by these cells increased
significantly compared with the controls at day 9 (3.3- vs
1.8-times, an increase of almost 83%). Thus,
IGF-I/SOX9 cotransfected chondrocytes may be
useful for cell-based articular cartilage therapies.
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Affiliation(s)
- M Simental-Mendía
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, NL, Mexico
| | - J Lara-Arias
- Autonomous University of Nuevo León, Laboratory of Tissue Engineering, Bone and Tissue Bank, Universitary Hospital, Monterrey, NL, Mexico
| | - E Álvarez-Lozano
- Autonomous University of Nuevo León, Laboratory of Tissue Engineering, Bone and Tissue Bank, Universitary Hospital, Monterrey, NL, Mexico
| | - S Said-Fernández
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, NL, Mexico
| | - A Soto-Domínguez
- Department of Histology, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, NL, Mexico
| | - G R Padilla-Rivas
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, NL, Mexico
| | - H G Martínez-Rodríguez
- Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Autonomous University of Nuevo León, Monterrey, NL, Mexico
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Leyva C, Aguilar D, Morales J, Pérez-López S, Véliz F, Soto-Domínguez A, Martínez JM. Effects of small dose estradiol cypionate after artificial insemination on reproductive performance in Holstein cows. Journal of Applied Animal Research 2014. [DOI: 10.1080/09712119.2014.987290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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