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Martínez-Hernández NJ, Milián-Medina L, Mas-Estellés J, Monroy-Antón JL, López-Villalobos JL, Hervás-Marín D, Roig-Bataller A, Mata-Roig M. Low-Dose Gamma Radiation Sterilization for Decellularized Tracheal Grafts. J Vis Exp 2023. [PMID: 37125805 DOI: 10.3791/64432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
One of the main key aspects in ensuring that a transplant evolves correctly is the sterility of the medium. Decellularized tracheal transplantation involves implanting an organ that was originally in contact with the environment, thus not being sterile from the outset. While the decellularization protocol (through detergent exposition [2% sodium dodecyl sulfate], continuous stirring, and osmotic shocks) is conducted in line with aseptic measures, it does not provide sterilization. Therefore, one of the main challenges is ensuring sterility prior to in vivo implantation. Although there are established gamma radiation sterilization protocols for inorganic materials, there are no such measures for organic materials. Additionally, the protocols in place for inorganic materials cannot be applied to organic materials, as the established radiation dose (25 kGy) would completely destroy the implant. This paper studies the effect of an escalated radiation dose in a decellularized rabbit trachea. We maintained the dose range (kGy) and tested escalated doses until finding the minimal dose at which sterilization is achieved. After determining the dose, we studied effects of it on the organ, both histologically and biomechanically. We determined that while 0.5 kGy did not achieve sterility, doses of both 1 kGy and 2 kGy did, with 1 kGy, therefore, being the minimal dose necessary to achieve sterilization. Microscopic studies showed no relevant changes compared to non-sterilized organs. Axial biomechanical characteristics were not altered at all, and only a slight reduction in the force per unit of length that the organ can radially tolerate was observed. We can therefore conclude that 1 kGy achieves complete sterilization of decellularized rabbit trachea with a minimal, if any, effects on the organ.
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Affiliation(s)
| | - Lara Milián-Medina
- Pathology Department, Universitat de Valencia Facultat de Medicina i Odontologia
| | - Jorge Mas-Estellés
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València
| | | | | | - David Hervás-Marín
- Department of Applied Statistics and Operations Research and Quality, Universitat Politècnica de València
| | | | - Manuel Mata-Roig
- Pathology Department, Universitat de Valencia Facultat de Medicina i Odontologia; Networking Research Center on Respiratory Diseases (CIBERER); INCLIVA Biomedical Research Institute
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Martínez-Hernández NJ, Díaz-Cuevas A, Milián-Medina L, Sancho-Tello M, Roselló-Ferrando J, Morcillo-Aixelá A, Campo-Cañaveral JL, Roig-Bataller A, Mata-Roig M. Decellularized tracheal prelamination implant: A proposed bilateral double organ technique. Artif Organs 2021; 45:1491-1500. [PMID: 34310703 DOI: 10.1111/aor.14043] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 01/08/2023]
Abstract
In tracheal replacement transplantation, prelamination is a critical stage. Nowadays, the most widely used prelamination technique is the prethoracic fascia flap with lateral thoracic artery. We propose a flap based on the internal thoracic artery, which allows a relatively non-aggressive double organ implant, and we have tested its efficacy in decellularized tracheas. Tracheas of albino New Zealand rabbits were decellularized following a protocol that uses detergents and cryogenization, sterilized with 1kGy gamma radiation, and tutorized with a stent. Bilateral pedicled flaps made of pectoral fascia and a muscular component were harvested through a longitudinal 3-cm central thoracic incision, wrapping the tracheas with them in 16 rabbits, remaining them implanted for 2, 4, 8, and 12 weeks. The tracheas were then studied histologically using standard stainings plus immunohistochemistry (CD31). The models were adjusted with Bayesian statistics using ordinal regression; results as odds ratios and credibility intervals. All analysis were performed using R software. Acute inflammatory cell invasion was observed at 2 weeks, which almost disappeared at week 8 after implant. Only macrophages and giant cells increased between Weeks 8 and 12 (OR 10.487, CI [1.603-97.327]). The cartilage maintained its structure, with slight signs of ischemia in a few cases. New CD31-positive vessels were observed from Week 2 and increasing thereafter, reaching a maximum peak at Week 8. We propose a bilateral implant technique that is viable and effective as a prelamination option for two concurrent tracheas, achieving perfect vascularization and integration of the organ with hardly any inflammatory response in the medium or long term.
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Affiliation(s)
| | | | - Lara Milián-Medina
- Pathology Department, Medicine and Odontology Faculty, Universitat de València, València, Spain
| | | | | | | | | | | | - Manuel Mata-Roig
- Pathology Department, Medicine and Odontology Faculty, Universitat de València, València, Spain.,Networking Research Center on Respiratory Diseases (CIBERER), ISCIII, Madrid, Spain
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Armengot-Carceller M, Reula A, Mata-Roig M, Pérez-Panadés J, Milian-Medina L, Carda-Batalla C. Understanding Primary Ciliary Dyskinesia: Experience From a Mediterranean Diagnostic Reference Centre. J Clin Med 2020; 9:jcm9030810. [PMID: 32188167 PMCID: PMC7141270 DOI: 10.3390/jcm9030810] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/08/2020] [Accepted: 03/10/2020] [Indexed: 11/20/2022] Open
Abstract
Background: Due to the lack of a gold standard diagnostic test, reference centres with experienced personnel and costly procedures are needed for primary ciliary dyskinesia (PCD) diagnostics. Diagnostic flowcharts always start with clinical symptoms. Therefore, the aim of this work is to define differential clinical criteria so that only patients clinically compatible with PCD are referred to reference centres. Materials and methods: 18 variables from 476 Mediterranean patients with clinically suspicious PCD were collected. After analysing cilia function and ultrastructure, 89 individuals were diagnosed with PCD and 387 had a negative diagnosis. Simple logistic regression analysis, considering PCD as a dependent variable and the others as independent variables, was done. In order to define the variables that best explain PCD, a step-wise logistic regression model was defined. Aiming to classify individuals as PCD or PCD-like patients, based on variables included in the study, a classification and regression tree (CART) was designed. Results and conclusions: Simple logistic regression analysis shows statistically significant association between age at the beginning of their symptomatology, periodicity, fertility, situs inversus, recurrent otitis, atelectasis, bronchiectasis, chronic productive cough, rhinorrea, rhinusinusitis and recurrent pneumonias, and PCD. The step-wise logistic regression model selected situs inversus, atelectasis, rhinorrea, chronic productive cough, bronchiectasis, recurrent pneumonias, and otitis as PCD predictive variables (82% sensitivity, 88% specificity, and 0.92 Area Under the Curve (AUC)). A decision tree was designed in order to classify new individuals based on pansinusitis, situs inversus, periodicity, rhinorrea, bronchiectasis, and chronic wet cough.
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Affiliation(s)
- Miguel Armengot-Carceller
- Surgery Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain;
- ENT Service, University and Polytechnic Hospital La Fe, 46026 Valencia, Spain
- Grupo de Biomedicina Molecular, Celular y Genómica IIS La Fe, 46026 Valencia, Spain
| | - Ana Reula
- Grupo de Biomedicina Molecular, Celular y Genómica IIS La Fe, 46026 Valencia, Spain
- Pathology Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain; (M.M.-R.); (L.M.-M.); (C.C.-B.)
- Correspondence:
| | - Manuel Mata-Roig
- Pathology Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain; (M.M.-R.); (L.M.-M.); (C.C.-B.)
| | - Jordi Pérez-Panadés
- Subdirección General de Epidemiología, Vigilancia de la Salud y Sanidad Ambiental, Conselleria de Sanitat Universal i Salut Pública, Generalitat Valenciana, 46010 Valencia, Spain;
| | - Lara Milian-Medina
- Pathology Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain; (M.M.-R.); (L.M.-M.); (C.C.-B.)
| | - Carmen Carda-Batalla
- Pathology Department, Faculty of Medicine, University of Valencia, 46010 Valencia, Spain; (M.M.-R.); (L.M.-M.); (C.C.-B.)
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Martínez-Doménech A, Hernández-Bel P, García-Legaz Martínez M, Magdaleno-Tapial J, Valenzuela-Oñate C, Mata-Roig M, Sánchez-Carazo JL, Alegre-de Miquel V, Pérez-Ferriols A. Tissue inflammatory biomarkers in chronic plaque psoriasis: Exploring lesional versus non-lesional skin relative expression and possible clinical correlations. Australas J Dermatol 2019; 61:e130-e132. [PMID: 31215638 DOI: 10.1111/ajd.13104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alvaro Martínez-Doménech
- Department of Dermatology, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - Pablo Hernández-Bel
- Department of Dermatology, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | | | - Jorge Magdaleno-Tapial
- Department of Dermatology, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | | | - Manuel Mata-Roig
- Department of Pathology, Facultat de Medicina i Odontologia, Universitat de València, Valencia, Spain
| | - Jose-Luis Sánchez-Carazo
- Department of Dermatology, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - Víctor Alegre-de Miquel
- Department of Dermatology, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - Amparo Pérez-Ferriols
- Department of Dermatology, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
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Avila-Martin G, Mata-Roig M, Galán-Arriero I, Taylor JS, Busquets X, Escribá PV. Treatment with albumin-hydroxyoleic acid complex restores sensorimotor function in rats with spinal cord injury: Efficacy and gene expression regulation. PLoS One 2017; 12:e0189151. [PMID: 29244816 PMCID: PMC5731767 DOI: 10.1371/journal.pone.0189151] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 11/20/2017] [Indexed: 12/26/2022] Open
Abstract
Sensorimotor dysfunction following incomplete spinal cord injury (SCI) is often characterized by paralysis, spasticity and pain. Previously, we showed that intrathecal (i.t.) administration of the albumin-oleic acid (A-OA) complex in rats with SCI produced partial improvement of these symptoms and that oral 2-hydroxyoleic acid (HOA, a non-hydrolyzable OA analogue), was efficacious in the modulation and treatment of nociception and pain-related anxiety, respectively. Here we observed that intrathecal treatment with the complex albumin-HOA (A-HOA) every 3 days following T9 spinal contusion injury improved locomotor function assessed with the Rotarod and inhibited TA noxious reflex activity in Wistar rats. To investigate the mechanism of action of A-HOA, microarray analysis was carried out in the spinal cord lesion area. Representative genes involved in pain and neuroregeneration were selected to validate the changes observed in the microarray analysis by quantitative real-time RT-PCR. Comparison of the expression between healthy rats, SCI rats, and SCI treated with A-HOA rats revealed relevant changes in the expression of genes associated with neuronal morphogenesis and growth, neuronal survival, pain and inflammation. Thus, treatment with A-HOA not only induced a significant overexpression of growth and differentiation factor 10 (GDF10), tenascin C (TNC), aspirin (ASPN) and sushi-repeat-containing X-linked 2 (SRPX2), but also a significant reduction in the expression of prostaglandin E synthase (PTGES) and phospholipases A1 and A2 (PLA1/2). Currently, SCI has very important unmet clinical needs. A-HOA downregulated genes involved with inflammation and upregulated genes involved in neuronal growth, and may serve to promote recovery of function after experimental SCI.
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Affiliation(s)
| | - Manuel Mata-Roig
- Department of Pathology, University of Valencia, Valencia, Spain
| | | | - Julian S. Taylor
- Hospital Nacional de Parapléjicos, Toledo, Spain
- Stoke Mandeville Spinal Research, National Spinal Injuries Centre, Buckinghamshire Healthcare Trust, NHS, Aylesbury, United Kingdom
- Harris Manchester College, University of Oxford, Oxford, United Kingdom
| | - Xavier Busquets
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, Palma de Mallorca, Spain
| | - Pablo V. Escribá
- Laboratory of Molecular Cell Biomedicine, University of the Balearic Islands, Palma de Mallorca, Spain
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Reula A, Lucas JS, Moreno-Galdó A, Romero T, Milara X, Carda C, Mata-Roig M, Escribano A, Dasi F, Armengot-Carceller M. New insights in primary ciliary dyskinesia. Expert Opin Orphan Drugs 2017. [DOI: 10.1080/21678707.2017.1324780] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ana Reula
- Universitat de Valencia, Valencia, Spain
- UCIM Department, Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
| | - JS Lucas
- Primary Ciliary Dyskinesia Centre, University of Southampton Faculty of Medicine, Southampton, UK
| | - Antonio Moreno-Galdó
- Pediatrics Pneumology and Cystic Fibrosis Unit, Hospital Vall d’Hebron, Barcelona, Spain
- Department of Pediatrics, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Teresa Romero
- Pediatrics Pneumology and Cystic Fibrosis Unit, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Xavier Milara
- Department of Pharmacy, Universitat Jaume I, Castello de la Plana, Spain
| | | | | | - Amparo Escribano
- Universitat de Valencia, Valencia, Spain
- Pediatrics Pneumology and Cystic Fibrosis Unit, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - Francisco Dasi
- Universitat de Valencia, Valencia, Spain
- UCIM Department, Instituto de Investigación Sanitaria INCLIVA, Valencia, Spain
| | - Miguel Armengot-Carceller
- Universitat de Valencia, Valencia, Spain
- Oto-Rino- Laryngology Department, University and Polytechnic Hospital La Fe, Valencia, Spain
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Bagan JV, Mata-Roig M, Cortio-Gimeno J, Murillo-Cortes J, Hens-Aumente E, Poveda-Roda R, Bagan L. Epidermal growth factor receptor copy number in potentially malignant oral disorders and oral squamous cell carcinoma: a short communication and preliminary study. J Oral Pathol Med 2012; 41:662-6. [PMID: 22417006 DOI: 10.1111/j.1600-0714.2012.01137.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION This preliminary study compared the epidermal growth factor receptor (EGFR) copy number in patients with potentially malignant oral disorders (PMODs) and oral squamous cell carcinoma (OSCC). MATERIAL AND METHODS Group 1 comprised 20 patients with oral leukoplakia and group 2 comprised 19 cases of OSCC. We estimated the EGFR copy number in both groups using real-time reverse-transcription polymerase chain reaction assays. We used laser microdissection (LMD) for EGFR amplification, and overexpression was performed. RESULTS The EGFR copy number was higher in group 2 (9.1 ± 6.2) than in group 1 (3.8 ± 1.5). The greatest copy number was found in the non-homogeneous leukoplakias, but the difference in homogeneous cases was not significant (Mann-Whitney test, P>0.05). In group 2, the EGFR copy number was higher in advanced stages than in early stages, but again lacked statistical significance. CONCLUSIONS The EGFR copy number may be a useful biomolecular marker to differentiate PMODs from OSCC. The EGFR was higher in non-homogeneous leukoplakias and in the advanced stages of OSCC.
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Affiliation(s)
- Jose V Bagan
- Head Service Stomatology and Maxillofacial Surgery, University General Hospital, Valencia University, Valencia, Spain.
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Barco A, Patterson S, Alarcon J, Gromova P, Mata-Roig M, Morozov A, Kandel E. Gene Expression Profiling of Facilitated L-LTP in VP16-CREB Mice Reveals that BDNF Is Critical for the Maintenance of LTP and Its Synaptic Capture. Neuron 2011. [DOI: 10.1016/j.neuron.2011.02.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Barco A, Patterson S, Alarcon JM, Gromova P, Mata-Roig M, Morozov A, Kandel ER. Gene Expression Profiling of Facilitated L-LTP in VP16-CREB Mice Reveals that BDNF Is Critical for the Maintenance of LTP and Its Synaptic Capture. Neuron 2007. [DOI: 10.1016/j.neuron.2007.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Barco A, Patterson SL, Patterson S, Alarcon JM, Gromova P, Mata-Roig M, Morozov A, Kandel ER. Gene Expression Profiling of Facilitated L-LTP in VP16-CREB Mice Reveals that BDNF Is Critical for the Maintenance of LTP and Its Synaptic Capture. Neuron 2005; 48:123-37. [PMID: 16202713 DOI: 10.1016/j.neuron.2005.09.005] [Citation(s) in RCA: 228] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2005] [Revised: 07/21/2005] [Accepted: 09/01/2005] [Indexed: 11/29/2022]
Abstract
Expression of VP16-CREB, a constitutively active form of CREB, in hippocampal neurons of the CA1 region lowers the threshold for eliciting the late, persistent phase of long-term potentiation (L-LTP) in the Schaffer collateral pathway. This VP16-CREB-mediated L-LTP differs from the conventional late phase of LTP in not being dependent on new transcription. This finding suggests that in the transgenic mice the mRNA transcript(s) encoding the protein(s) necessary for this form of L-LTP might already be present in CA1 neurons in the basal condition. We used high-density oligonucleotide arrays to identify the mRNAs differentially expressed in the hippocampus of transgenic and wild-type mice. We then explored the contribution of the most prominent candidate genes revealed by our screening, namely prodynorphin, BDNF, and MHC class I molecules, to the facilitated LTP of VP16-CREB mice. We found that the overexpression of brain-derived neurotrophic factor accounts for an important component of this phenotype.
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Affiliation(s)
- Angel Barco
- Center for Neurobiology and Behavior, Columbia University, 1051 Riverside Drive, New York, New York 10032, USA.
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López-López A, Pujalte MJ, Benlloch S, Mata-Roig M, Rosselló-Mora R, Garay E, Rodríguez-Valera F. Thalassospira lucentensis gen. nov., sp. nov., a new marine member of the alpha-Proteobacteria. Int J Syst Evol Microbiol 2002; 52:1277-83. [PMID: 12148640 DOI: 10.1099/00207713-52-4-1277] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel bacterium from the Mediterranean Sea was isolated under oligotrophic conditions at in situ temperature after prolonged continuous culture. The isolates were initially characterized by partial 16S rRNA gene sequencing. Similarity searches of one of the isolates, QMT2T, indicated high sequence identity to the well-characterized Rhodospirillum rubrum, [Aquaspirillum] itersonii and [Oceanospirillum] pusillum micro-organisms, which are representatives of the alpha-subclass of the Proteobacteria. The highest level of similarity of the complete 165 rRNA gene with respect to these microorganisms was 89%. Features such as the low similarities of 165 rRNA of QMT2T with its phylogenetically close neighbours, the distinct G+C content, and the differences in phenotypic features, including pigmentation, fatty acid composition, salt tolerance, the lack of bacteriochlorophyll a, and the capacity to use carbohydrates as carbon sources, are indicative of the novel nature of the isolate QMT2T among the alpha-Proteobacteria. This report describes the classification of strain QMT2T (= DSM 14000T = CECT 5390T) as a new genus and species, Thalassospira lucentensis gen. nov, sp. nov., in the family Rhodospirillaceae.
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Affiliation(s)
- Arantxa López-López
- División de Microbiología, Universidad Miguel Hernández, San Juan de Alicante, Spain
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