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Gonçalves DR, Botelho LM, Carrard VC, Martins MAT, Visioli F. Amitriptyline effectiveness in burning mouth syndrome: An in-depth case series analysis. Gerodontology 2024. [PMID: 38515010 DOI: 10.1111/ger.12750] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/07/2024] [Indexed: 03/23/2024]
Abstract
OBJECTIVES To assess the effectiveness of amitriptyline (AMT), and to identify the determinants of the treatment's effectiveness in patients diagnosed with burning mouth syndrome (BMS). BACKGROUND Treatment of BMS is challenging and no established treatment protocol is available. AMT may be an important treatment option, cout not all patients benefit from this drug. Studies assessing factors related to treatment response are valuable in improving decision-making. MATERIALS AND METHODS This case series study examined the medical records of all patients diagnosed with BMS at an oral medicine unit in a university hospital from 2008 to 2022. The patients were divided into responders to AMT and non-responders to AMT. Data on demographic information, comorbidities, medications, types of symptoms and oral subsites affected were collected. Descriptive and bivariate analyses were conducted to assess the association between the independent variables and the outcome, using the Chi-squared test (P < .05). RESULTS Three hundred and fourty-nine patients reported a burning mouth sensation, 50 of them (14.3%) being diagnosed with primary BMS. Of these, 35 were treated with AMT, and 26 (74.2%) responded significantly to AMT. All males responded to AMT, whereas only 67.9% of females responded. The mean dose of AMT among responders was 29.8 ± 12.3 mg, with most patients achieving a response with 25 mg (61.5% of patients), followed by 50 mg (23%). The concomitant use of an anticonvulsant resulted in non-response. CONCLUSIONS AMT may be effective in BMS management for most patients.
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Affiliation(s)
- Douglas Rodrigues Gonçalves
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Oral Medicine Unit, Otorhinolaryngology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Leonardo Monteiro Botelho
- Pain Management and Palliative Medicine Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Vinícius Coelho Carrard
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Oral Medicine Unit, Otorhinolaryngology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marco Antônio Trevizani Martins
- Oral Medicine Unit, Otorhinolaryngology Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
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Gamba TO, Visioli F, Bringmann DR, Rados PV, da Silveira HLD, Flores IL. Impact of dental imaging on pregnant women and recommendations for fetal radiation safety: A systematic review. Imaging Sci Dent 2024; 54:1-11. [PMID: 38571778 PMCID: PMC10985525 DOI: 10.5624/isd.20230177] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 04/05/2024] Open
Abstract
Purpose This study was conducted to investigate the safety of dental imaging in pregnant women with respect to fetal health. Materials and Methods Searches were conducted of the PubMed, Scopus, and Web of Science databases in May 2023. The inclusion criteria encompassed cross-sectional and longitudinal studies that focused on the analysis of diagnostic dental imaging in pregnant women, as well as studies utilizing phantoms to simulate imaging examinations. The exclusion criteria consisted of reviews, letters to the editor, book chapters, and abstracts from scientific conferences and seminars. Results A total of 3,913 articles were identified. Based on a review of the titles and abstracts, 3,892 articles were excluded, leaving 21 articles remaining for full-text review. Of these, 18 were excluded, and 4 additional articles were included as cross-references. Ultimately, 7 articles underwent quantitative-qualitative analysis. Three retrospective studies were focused on pregnant women who underwent dental imaging procedures. The remaining 4 studies utilized female phantoms to simulate imaging examinations and represent the radiation doses absorbed by the uterus or thyroid. Conclusion Few dental radiology studies have been conducted to determine the safe radiation threshold for pregnant women. Additionally, the reviewed articles did not provide numbers of dental examinations, by type, corresponding to this dose. Dental imaging examinations of pregnant women should not be restricted if clinically indicated. Ultimately, practitioners must be able to justify the examination and should adhere to the "as low as diagnostically acceptable, being indication-oriented and patient-specific" (ALADAIP) principle of radioprotection.
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Affiliation(s)
- Thiago Oliveira Gamba
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
- Postgraduate Program in Health Sciences, Caxias do Sul University, Caxias do Sul, RS, Brazil
| | - Fernanda Visioli
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Deise Renata Bringmann
- Postgraduate Program in Health Sciences, Caxias do Sul University, Caxias do Sul, RS, Brazil
| | - Pantelis Varvaki Rados
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Heraldo Luis Dias da Silveira
- Department of Surgery and Orthopedics, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Isadora Luana Flores
- Department of Conservative Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
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Nunes JS, Pimentel-Vera LN, Silva SB, de Bem Prunes B, Rados PV, Visioli F. Comparison of different DNA preservation solutions for oral cytological samples. Arch Oral Biol 2024; 158:105867. [PMID: 38056230 DOI: 10.1016/j.archoralbio.2023.105867] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
OBJECTIVE The objective of this study was to compare the DNA preservation capacity of buccal mucosa exfoliated cells when stored in different solutions under varying time and temperature conditions. DESIGN DNA preservation solutions, including Dimethyl sulphoxide disodium-EDTA-saturated NaCl (DESS), Tris-EDTA-NaCl-Tween20 buffer (TENT), Nucleic Acid Preservation Buffer (NAP), and phosphate-buffered saline (PBS), were prepared. Buccal mucosa cells from a single patient were collected, dispensed into these solutions, and stored at room temperature (RT) and 4 °C for 24 h, 72 h, 30 days, 90 days, and 180 days. DNA was extracted using the salting-out method and the QIAamp DNA Mini Kit. DNA concentration and purity were determined using the QuBit device and NanoDrop, while DNA integrity was assessed using the Agilent 4200 TapeStation system. The ability to amplify the IFNA primer was also evaluated by PCR. RESULTS The salting-out method yielded better concentration and purity results, with PBS, TENT, and DESS buffers demonstrating superior concentration values when stored at 4 °C, resulting in mean values exceeding 10 ng/μL for up to 30 days. DESS consistently exhibited the best integrity values over time for both temperature conditions. Amplification capacity was enhanced when samples were stored at 4 °C. When stored at RT, PBS achieved 100% amplification within 24 h. NAP yielded the poorest results. CONCLUSION In the context of long-term preservation, the DESS buffer emerges as the most effective solution, maintaining requisite DNA quality and quantity standards for up to 30 days at RT and up to 3 months at 4 °C.
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Affiliation(s)
- Júlia Silveira Nunes
- Department of Oral Pathology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | | | - Sabrina Barcelos Silva
- Department of Oral Pathology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Bianca de Bem Prunes
- Department of Oral Pathology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Pantelis Varvaki Rados
- Department of Oral Pathology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Experimental Research Center, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil.
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de Mello Palma V, Frank LA, Balinha DM, Rados PV, Pohlmann AR, Guterres SS, Visioli F. Is imiquimod a promising drug to treat oral mucosa diseases? A scoping review and new perspectives. Br J Clin Pharmacol 2024; 90:427-439. [PMID: 37817570 DOI: 10.1111/bcp.15923] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 10/12/2023] Open
Abstract
Imiquimod (IMQ) is a chemotherapeutic and immunostimulant drug that is applied topically, demonstrating antitumor and antiviral activities. The objective of this review was to compile data on the off-label use of IMQ in oral mucosal diseases. IMQ has exhibited effectiveness in the treatment of various oral mucosal conditions, including oral carcinogenic lesions, neoplasms, HPV-related lesions and autoimmune disorders. Although IMQ holds promise as a potential strategy for addressing oral mucosal lesions, it is important to note that significant side effects have been frequently reported. Nonetheless, it is crucial to develop and test new technological systems, such as the combination of nanotechnology with innovative drug delivery platforms. These advancements aim to minimize side effects and prolong the drug's contact time with the mucosa, preventing its removal by salivary flow.
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Affiliation(s)
- Victor de Mello Palma
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, 90035-003
| | - Luiza Abrahão Frank
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Núcleo de Terapias Nanotecnológicas, Faculdade de Farmácia da Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Daiana Moraes Balinha
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, 90035-003
| | - Pantelis Varvaki Rados
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, 90035-003
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Núcleo de Terapias Nanotecnológicas, Faculdade de Farmácia da Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Núcleo de Terapias Nanotecnológicas, Faculdade de Farmácia da Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil, 90035-003
- Núcleo de Terapias Nanotecnológicas, Faculdade de Farmácia da Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
- Experimental Center Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil, 90035-903
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Barbosa S, Laureano NK, Hadiwikarta WW, Visioli F, Bonrouhi M, Pajdzik K, Conde-Lopez C, Herold-Mende C, Eidt G, Langie R, Lamers ML, Stögbauer F, Hess J, Kurth I, Jou A. The Role of SOX2 and SOX9 in Radioresistance and Tumor Recurrence. Cancers (Basel) 2024; 16:439. [PMID: 38275880 PMCID: PMC10814462 DOI: 10.3390/cancers16020439] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/28/2023] [Accepted: 01/13/2024] [Indexed: 01/27/2024] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) exhibits considerable variability in patient outcome. It has been reported that SOX2 plays a role in proliferation, tumor growth, drug resistance, and metastasis in a variety of cancer types. Additionally, SOX9 has been implicated in immune tolerance and treatment failures. SOX2 and SOX9 induce treatment failure by a molecular mechanism that has not yet been elucidated. This study explores the inverse association of SOX2/SOX9 and their distinct expression in tumors, influencing the tumor microenvironment and radiotherapy responses. Through public RNA sequencing data, human biopsy samples, and knockdown cellular models, we explored the effects of inverted SOX2 and SOX9 expression. We found that patients expressing SOX2LowSOX9High showed decreased survival compared to SOX2HighSOX9Low. A survival analysis of patients stratified by radiotherapy and human papillomavirus brings additional clinical relevance. We identified a gene set signature comprising newly discovered candidate genes resulting from inverted SOX2/SOX9 expression. Moreover, the TGF-β pathway emerges as a significant predicted contributor to the overexpression of these candidate genes. In vitro findings reveal that silencing SOX2 enhances tumor radioresistance, while SOX9 silencing enhances radiosensitivity. These discoveries lay the groundwork for further studies on the therapeutic potential of transcription factors in optimizing HNSCC treatment.
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Affiliation(s)
- Silvia Barbosa
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
- Department of Morphological Sciences, Institute of Basic Health Science, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90035-003, RS, Brazil
| | - Natalia Koerich Laureano
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
- Department of Oral Pathology, Faculty of Dental Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90035-004, RS, Brazil
| | - Wahyu Wijaya Hadiwikarta
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), Core Center Heidelberg, 69120 Heidelberg, Germany
| | - Fernanda Visioli
- Department of Oral Pathology, Faculty of Dental Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90035-004, RS, Brazil
| | - Mahnaz Bonrouhi
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Kinga Pajdzik
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Cristina Conde-Lopez
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Christel Herold-Mende
- Department of Neurosurgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Gustavo Eidt
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Renan Langie
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Department of Oral Pathology, Faculty of Dental Sciences, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90035-004, RS, Brazil
| | - Marcelo Lazzaron Lamers
- Department of Morphological Sciences, Institute of Basic Health Science, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 90035-003, RS, Brazil
| | - Fabian Stögbauer
- Tissue Bank of the National Center for Tumor Diseases (NCT) Heidelberg, Germany and Institute of Pathology, Heidelberg University Hospital, 69120 Heidelberg, Germany
- Institute of Pathology, School of Medicine, Technical University of Munich (TUM), 80337 Munich, Germany
| | - Jochen Hess
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Ina Kurth
- Division of Radiooncology/Radiobiology, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- German Cancer Consortium (DKTK), Core Center Heidelberg, 69120 Heidelberg, Germany
- Heidelberg Institute of Radiation Oncology (HIRO), 69120 Heidelberg, Germany
| | - Adriana Jou
- Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Faculty of Dentistry, Institute of Toxicology and Pharmacology, Pontifícial Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre 90619-900, RS, Brazil
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Iserhard R, Pilar EFS, de Oliveira FH, Callegari-Jacques SM, Ferst P, Visioli F, Lopes AB, da Costa Lopez PL, Filippi-Chiela EC. Autophagy and nuclear morphometry are associated with histopathologic features in esophageal squamous cell carcinoma. J Mol Med (Berl) 2024; 102:39-52. [PMID: 37878028 DOI: 10.1007/s00109-023-02387-4] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/07/2023] [Accepted: 10/13/2023] [Indexed: 10/26/2023]
Abstract
Less than 15% of patients with esophageal squamous cell carcinoma (ESCC) survive 5 years after diagnosis. A better understanding of the biology of these tumors and the development of clinical biomarkers is needed. Autophagy is a physiological mechanism involved in the turnover of cellular components that plays a key role in cancer. This study evaluated the differential levels of three key regulators of autophagy (SQSTM1, MAP1LC3B, and BECN1) in patients with ESCC, associating autophagy with histopathologic features, including the grade of differentiation, mitotic rate, inflammation score, and the intensity of tumor-infiltrating lymphocytes. Nuclear morphometry of the tumor parenchyma was also assessed, associating it with autophagy and histopathology. All three markers significantly increased in patients with ESCC compared to the control group. Based on the mean expression of each protein in the control group, 57% of patients with ESCC had high levels of all three markers compared to control patients (14%). The most frequent profiles found in ESCC were BECNhigh/MAP1LC3high and BECNhigh/SQSTM1high. According to the TCGA database, we found that the main autophagy genes were upregulated in ESCC. Moreover, high levels of autophagy markers were associated with a poor prognosis. Considering nuclear morphometry, ESCC samples showed a significant reduction in nuclear area, which was strongly negatively correlated with autophagy. Finally, the percentage of normal nuclei was associated with tumor differentiation, while poorly differentiated tumors showed lower SQSTM1 levels. ESCC progression may involve increased autophagy and changes in nuclear structure, associated with clinically relevant histopathological features. KEY MESSAGES: Autophagy markers are co-increased in primary ESCC. Autophagy negatively correlates with nuclear morphometry in ESCC parenchyma. Autophagy and nuclear morphometry are associated with histopathological features. Autophagy is increased in ESCC-TCGA database and associated with poor prognosis.
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Affiliation(s)
- Ricardo Iserhard
- Graduate Program in Gastroenterology and Hepatology, Faculty of Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | | | | | | | - Paula Ferst
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
- Graduate Program in Dentistry, School of Dental Sciences, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil
| | - Antonio Barros Lopes
- Graduate Program in Gastroenterology and Hepatology, Faculty of Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patrícia Luciana da Costa Lopez
- Graduate Program in Gastroenterology and Hepatology, Faculty of Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Eduardo Cremonese Filippi-Chiela
- Graduate Program in Gastroenterology and Hepatology, Faculty of Medical Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
- Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.
- Center for Biotechnology, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.
- Department of Morphological Sciences, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.
- Hospital de Clínicas de Porto Alegre - Experimental Research Center, Rua Ramiro Barcelos, Porto Alegre, RS, 2350, 90035-903, Brazil.
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Medeiros L, Dos Santos RF, da Rolt Nervis B, Jacobi M, Hashizume LN, Gazzi RP, Visioli F, Nunes JS, Lavayen V, De Franco VC, Daitx TS, Pereira SC, Ferreira GA, Pohlmann A, Guterres S, Frank LA, Bussamara R. Synthesis of films based on chitosan and protic ionic liquids to be used as wound dressing on the oral mucosa. Int J Biol Macromol 2023; 253:127134. [PMID: 37776933 DOI: 10.1016/j.ijbiomac.2023.127134] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/14/2023] [Accepted: 09/27/2023] [Indexed: 10/02/2023]
Abstract
Oral mucosal ulcerations expose connective tissue to different pathogens and this can progress to systemic infection. This study aimed to synthesize environmentally-friendly films with chitosan and protic ionic liquids, possessing mucoadhesive properties, activity against opportunistic microorganisms, enhanced malleability and mechanical resistance to be used as a wound dressing on the oral mucosa. Therefore, films with chitosan and 10, 35, and 50 % (wt/wt) of 2-hydroxy diethylammonium lactate, salicylate, and maleate protic ionic liquids were synthesized. Thickness measurements and mechanical properties analysis were performed. In addition, oral mucoadhesion, antimicrobial activity, and cytotoxicity properties were investigated. Results showed that the addition of 35wt% and 50wt% of all kinds of protic ionic liquids tested presented significant improvements in film thickness and mechanical properties. Films based on chitosan and the protic ionic liquid 2-hydroxy diethylammonium salicylate at percentages of 35 and 50wt% exhibited superior mucoadhesive properties, antimicrobial activity on opportunistic microorganisms and an improvement in their flexibility after immersion in synthetic saliva. Cytotoxicity results suggest that all kinds of chitosan/protic ionic liquids films tested are safe for intra-oral use. Therefore, the results of this study indicate that these materials could be good candidates for efficient and environmentally-friendly wound dressing films on the oral mucosa.
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Affiliation(s)
- Leonardo Medeiros
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Rogério F Dos Santos
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Brenda da Rolt Nervis
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil
| | - Marly Jacobi
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Lina Naomi Hashizume
- Department of Preventive and Social Dentistry, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Rafaela P Gazzi
- Department of Preventive and Social Dentistry, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Júlia Silveira Nunes
- Department of Oral Pathology, School of Dentistry, UFRGS, Rua Ramiro Barcelos 2492, CEP 90035-003 Porto Alegre, RS, Brazil
| | - Vladimir Lavayen
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Vinícius C De Franco
- Laboratory of Magnetism, Institute of Physics, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Tales S Daitx
- Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970 Porto Alegre, RS, Brazil
| | - Sandra Cerqueira Pereira
- Escola Politécnica(,) Department of Chemical Engineering, UFBA, R. Aristides Novis 2, CEP 40210-630 Salvador, BA, Brazil
| | - Gicelia Antonia Ferreira
- Escola Politécnica(,) Department of Chemical Engineering, UFBA, R. Aristides Novis 2, CEP 40210-630 Salvador, BA, Brazil
| | - Adriana Pohlmann
- Pharmaceutical Sciences Post-Graduate Program, UFRGS, Av. Ipiranga 2752, CEP 90160-093 Porto Alegre, RS, Brazil
| | - Silvia Guterres
- Pharmaceutical Sciences Post-Graduate Program, UFRGS, Av. Ipiranga 2752, CEP 90160-093 Porto Alegre, RS, Brazil
| | - Luiza Abrahão Frank
- Pharmaceutical Sciences Post-Graduate Program, UFRGS, Av. Ipiranga 2752, CEP 90160-093 Porto Alegre, RS, Brazil
| | - Roberta Bussamara
- Laboratory of Proteins and Microorganisms Applied to Chemistry, Institute of Chemistry, UFRGS, Av. Bento Gonçalves 9500, CEP 91501-970, Porto Alegre, RS, Brazil.
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8
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de Cristo Soares Alves A, Rosane Dallemole D, Medeiro Ciocheta T, Ferreira Weber A, da Silva Gündel S, Visioli F, Figueiró F, Stanisçuaski Guterres S, Raffin Pohlmann A. Chicken embryo model for in vivo acute toxicological and antitumor efficacy evaluation of lipid nanocarrier containing doxorubicin. Int J Pharm X 2023; 6:100193. [PMID: 38204452 PMCID: PMC10777201 DOI: 10.1016/j.ijpx.2023.100193] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024] Open
Abstract
Nanoencapsulation of chemotherapeutics, including doxorubicin, can endow the formulations with unique properties, such as a decrease in adverse effects and toxicity. The chicken embryo model is an alternative and well-accepted strategy for evaluating the toxicity and efficacy of drugs and nanoformulations. Therefore, this study proposes the development of a new lipid nanocarrier for doxorubicin delivery (NanoLip-Dox) and posterior evaluation of toxicological profile and antitumoral efficacy against a breast tumor in chicken embryos. NanoLip-Dox showed a unimodal particle size (< 150 nm), negative zeta potential (-19.5 mV), absence of drug crystals, drug content of 0.099 mg·mL-1, and high entrapment efficiency (95%). NanoLip-Dox did not cause toxicity in the chicken embryos; in contrast, doxorubicin hydrochloride induced moderate irritation in the chorioallantoic membrane (at 862.1 μmol·L-1), a survival rate of 50% (at 1.7 μmol·L-1), and an increase in aspartate aminotransferase (at 862.1, 344.8, and 172.4 μmol·L-1). In addition, NanoLip-Dox (at 1.7 μmol·L-1) showed potent antitumor efficacy with a high tumor remission percentage (40.9 ± 9.7%) compared to the control group (8.6 ± 14.8%). These findings together with the absence of toxicity concerning morphological characteristics, weights of embryos and organs, hematologic parameters, and enzymatic activity (alanine aminotransferase, aspartate aminotransferase, and creatinine) suggest the safety and efficacy of NanoLip-Dox.
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Affiliation(s)
- Aline de Cristo Soares Alves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Danieli Rosane Dallemole
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Taiane Medeiro Ciocheta
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Augusto Ferreira Weber
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Samanta da Silva Gündel
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Fernanda Visioli
- Programa de Pós-Graduação em Odontologia, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS 90035-003, Brazil
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, RS 90035-903, Brazil
| | - Fabricio Figueiró
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, 90610-000, RS, Brazil
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Dias KB, Hildebrand LC, Carvalho ALHD, Ferri CA, Nör JE, Cerski CTS, Visioli F, Oliveira MG, Rados PV. Clinical outcomes and prognostic factors of head and neck squamous cell carcinoma: a ten-year follow-up study. Braz Oral Res 2023; 37:e128. [PMID: 38126472 DOI: 10.1590/1807-3107bor-2023.vol37.0128] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 10/18/2022] [Accepted: 07/07/2023] [Indexed: 12/23/2023] Open
Abstract
Traditional guidelines for determining the prognosis of patients with head and neck squamous cell carcinoma (HNSCC) are used to make therapeutic decisions. However, only 50% of the patients had lived for more than five years. The present study aimed to analyze the correlation of traditional prognostic factors such as tumor size, histological grading, regional metastases, and treatment with the survival of patients with HNSCC. A total of 78 patients diagnosed with HNSCC were followed up for 10 years after diagnosis and treatment. The health status of the patients was tracked at four time points, and according to the evolution of the patients and their final clinical status, we performed a prognostic analysis based on the clinical outcomes observed during the follow-up period. The final study cohort comprised 50 patients. Most patients had tumors < 4 cm in size (64%) and no regional metastases (64%); no patients had distant metastases at the time of diagnosis. Most individuals had tumors with good (48%) and moderate (46%) degrees of malignancy. At the end of the follow-up period, only 14% of the patients were discharged, 42% died of the tumor, and 44% remained under observation owing to the presence of a potentially malignant disorder, relapse, or metastases. This analysis showed that traditional prognostic factors were not accurate in detecting subclinical changes or predicting the clinical evolution of patients.
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Affiliation(s)
- Kelly Bienk Dias
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry , Pathology Department , Porto Alegre , RS , Brazil
| | - Laura Campos Hildebrand
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry , Pathology Department , Porto Alegre , RS , Brazil
| | - Ana Luísa Homem de Carvalho
- Pathology Department , School of Dentistry , Pontifícia Universidade Católica do Grande do Sul , Porto Alegre , Rio Grande do Sul , Brazil
| | - Camila Alves Ferri
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry , Pathology Department , Porto Alegre , RS , Brazil
| | - Jacques Eduardo Nör
- University of Michigan , School of Dentistry , Cariology Department, Restorative Sciences, and Endodontics , Ann Arbor , MI , USA
| | - Carlos Thadeu Schmidt Cerski
- Universidade Federal do Rio Grande do Sul - UFRGS, Hospital de Clinícas de Porto Alegre , Porto Alegre , RS , Brazil
| | - Fernanda Visioli
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry , Pathology Department , Porto Alegre , RS , Brazil
| | - Márcia Gaiger Oliveira
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry , Pathology Department , Porto Alegre , RS , Brazil
| | - Pantelis Varvaki Rados
- Universidade Federal do Rio Grande do Sul - UFRGS, School of Dentistry , Pathology Department , Porto Alegre , RS , Brazil
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Pedraça ES, da Silva EL, de Lima TB, Rados PV, Visioli F. Systemic non-steroidal immunomodulators for oral lichen planus treatment-a scoping review. Clin Oral Investig 2023; 27:7091-7114. [PMID: 37921879 DOI: 10.1007/s00784-023-05357-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 10/19/2023] [Indexed: 11/05/2023]
Abstract
OBJECTIVE The aim of this scoping review was to evaluate the efficacy and safety of the use of systemic nonsteroidal immunomodulators (SNSI) for oral lichen planus (OLP) treatment. MATERIALS AND METHODS This review was conducted according to PRISMA-ScR guidelines and registered at PROSPERO (CRD42021243524). Consulted databases were Pubmed, Embase, Scopus, and Web of Science. The inclusion criteria was as follows: clinical trials, case series, prospective, and retrospective studies conducted with participants presenting OLP of any sex and age. RESULTS Thirty-two studies were selected, assessing 9 different SNSI: methotrexate, dapsone, levamisole, hydroxychloroquine, thalidomide, metronidazole, azathioprine, mycophenolate mofetil, and colchicine. Methotrexate and dapsone were the drugs with the best evidence among the options included, regarding number and quality of studies. Methotrexate resulted in significant improvement in the clinical condition and remission of symptoms, ranging between 63 and 93% of cases. Dapsone presented a similar effect to the use of topical corticosteroids and tacrolimus CONCLUSION: Among SNSI therapeutic options, methotrexate, and dapsone showed promising efficacy and safety. However, large-scale randomized clinical trials are still needed. CLINICAL RELEVANCE SNSI have been used in the treatment of recalcitrant OLP; however, so far, it is not clear which are the best options. This scoping review highlights the potential use of methotrexate and dapsone.
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Affiliation(s)
- Erick Souza Pedraça
- Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Eduardo Liberato da Silva
- Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Taiane Berguemaier de Lima
- Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Pantelis Varvaki Rados
- Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Fernanda Visioli
- Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil.
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.
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11
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Custódio G, Massutti AM, da Igreja MR, Lemos NE, Crispim D, Visioli F, Palma VDM, Leitão CB, Rech TH. Does liraglutide alleviates inflammation in brain-dead donors? A randomized clinical trial. Liver Transpl 2023:01445473-990000000-00282. [PMID: 37938130 DOI: 10.1097/lvt.0000000000000298] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/14/2023] [Indexed: 11/09/2023]
Abstract
BACKGROUND Brain death triggers an inflammatory cascade that damages organs before procurement, adversely affecting the quality of grafts. This randomized clinical trial aimed to compare the efficacy of liraglutide compared to placebo in attenuating brain death-induced inflammation, endoplasmic reticulum stress, and oxidative stress. METHODS We conducted a double-blinded, placebo-controlled, randomized clinical trial with brain-dead donors. Fifty brain-dead donors were randomized to receive subcutaneous liraglutide or placebo. The primary outcome was the reduction in interleukin-6 (IL-6) plasma levels. Secondary outcomes were changes in other plasma pro-inflammatory (IL-1β, IFN-γ, TNF) and anti-inflammatory cytokines (IL-10), expression of antiapoptotic (BCL2), endoplasmic reticulum stress markers (DDIT3/CHOP, HSPA5/BIP), and antioxidant (SOD2, UCP2) genes, and expression TNF, DDIT3, and SOD2 proteins in liver biopsies. RESULTS The liraglutide group showed lower cytokine levels compared to the placebo group during follow-up: Δ IL-6 (-28 [-182-135] vs. 32 [-10.6-70.7] pg/mL; p=0.041) and Δ IL-10 (-0.01 [-2.2-1.5] vs. 1.9 [-0.2-6.1] pg/mL; p=0.042), respectively. The administration of liraglutide did not significantly alter the expression of inflammatory, anti-apoptotic, endoplasmic reticulum stress, or antioxidant genes in the liver tissue. Similar to gene expression, expressions of proteins in liver were not affected by the administration of liraglutide. Treatment with liraglutide did not increase organ recovery rate [OR=1.2 (95% CI 0.2-8.6), p=0.82]. CONCLUSIONS Liraglutide administration reduced IL-6 and prevented the increase of IL-10 plasma levels in brain-dead donors, without affecting the expression of genes and proteins related to inflammation, apoptosis, endoplasmic reticulum stress, or oxidative stress.
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Affiliation(s)
- Geisiane Custódio
- Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Intensive Care Unit, Hospital Santa Isabel, Blumenau, SC, Brazil
| | | | | | - Natália Emerim Lemos
- Diabetes and Metabolism Group, Centro de Pesquisa Clínica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Daisy Crispim
- Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Diabetes and Metabolism Group, Centro de Pesquisa Clínica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Victor de Mello Palma
- Experimental Research Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Cristiane Bauermann Leitão
- Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Diabetes and Metabolism Group, Centro de Pesquisa Clínica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- School of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Tatiana Helena Rech
- Graduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Diabetes and Metabolism Group, Centro de Pesquisa Clínica, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
- School of Medicine, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Intensive Care Unit, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
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12
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Tavares AMV, Gonzalez EA, Viana IS, Visioli F, Vera LNP, Baldo G. Characterization of heart disease in mucopolysaccharidosis type II mice. Cardiovasc Pathol 2023; 67:107575. [PMID: 37730078 DOI: 10.1016/j.carpath.2023.107575] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 08/26/2023] [Accepted: 09/05/2023] [Indexed: 09/22/2023] Open
Abstract
Mucopolysaccharidosis type II (MPSII) is a progressive lysosomal storage disease caused by mutations in the IDS gene, that leads to iduronate 2-sulfatase (IDS) enzyme deficiency. The enzyme catalyzes the first step of degradation of two glycosaminoglycans (GAGs), heparan sulfate (HS) and dermatan sulfate (DS). The consequences of MPSII are progressively harmful and can lead to death by cardiac failure. The aim of this study was to characterize the cardiovascular disease in MPSII mice. Thus, we evaluated the cardiovascular function of MPSII male mice at 6, 8, and 10 months of age, through functional, histological, and biochemical analyzes. Echocardiographic analyses showed a progressive loss in cardiac function, observed through parameters such as reduction in ejection fraction (46% in control versus 28% in MPS II at 10 months, P < .01) and fractional area change (31% versus 23%, P < .05). Similar results were found in parameters of vascular competence, obtained by echo Doppler. Both aortic dilatation and an increase in pulmonary resistance were observed at all time points in MPSII mice. The histological analyses showed an increase in the thickness of the heart valves (2-fold thicker than control values at 10 months). Biochemical analyzes confirmed GAG storage in these tissues, with a massive elevation of DS in the myocardium. Furthermore, an important increase in the activity of proteases such as cathepsin S and B (up to 5-fold control values) was found and could be related to the progressive loss of cardiac function observed in MPSII mice. In this work, we demonstrated that loss of cardiac function in MPSII mice started at 6 months of age, although its global cardiac capacity was still preserved at this time. Disease progressed at later time points leading to heart failure. The MPSII mice at later times reproduce many of the cardiovascular events found in patients with Hunter's disease.
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Affiliation(s)
- Angela Maria Vicente Tavares
- Programa de Pós-Graduação em Ciências Biológicas: Fisiologia - UFRGS, Rua Ramiro Barcelos, 2600, Porto Alegre, CEP: 90035-003, RS, Brazil
| | - Esteban Alberto Gonzalez
- Centro de Pesquisa Experimental- Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, CEP 90035-903, RS, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - UFRGS Av. Bento Gonçalves, 9500, Porto Alegre, CEP 91501970, RS, Brazil
| | - Isabelle Souza Viana
- Centro de Pesquisa Experimental- Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, CEP 90035-903, RS, Brazil
| | - Fernanda Visioli
- Centro de Pesquisa Experimental- Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, CEP 90035-903, RS, Brazil
| | - Luisa Natalia Pimentel Vera
- Centro de Pesquisa Experimental- Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, CEP 90035-903, RS, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - UFRGS Av. Bento Gonçalves, 9500, Porto Alegre, CEP 91501970, RS, Brazil
| | - Guilherme Baldo
- Programa de Pós-Graduação em Ciências Biológicas: Fisiologia - UFRGS, Rua Ramiro Barcelos, 2600, Porto Alegre, CEP: 90035-003, RS, Brazil; Centro de Pesquisa Experimental- Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, CEP 90035-903, RS, Brazil; Programa de Pós-Graduação em Genética e Biologia Molecular - UFRGS Av. Bento Gonçalves, 9500, Porto Alegre, CEP 91501970, RS, Brazil.
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13
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Zancanaro M, Stein DJ, Lopes BC, de Souza A, Ströher Toledo R, de Souza AH, Oliveira SM, Visioli F, Sanches PRS, Fregni F, Caumo W, Torres ILS. Preemptive transcranial direct current stimulation induces analgesia, prevents chronic inflammation and fibrosis, and promotes tissue repair in a rat model of postoperative pain. Neurosci Lett 2023; 813:137407. [PMID: 37499743 DOI: 10.1016/j.neulet.2023.137407] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/12/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023]
Abstract
This study evaluated the effects of previous exposure to Transcranial Direct Current Stimulation (tDCS) on nociceptive, neuroinflammatory, and neurochemical parameters, in rats subjected to an incisional pain model. Forty adult male Wistar rats (60 days old; weighing ∼ 250 g) were divided into five groups: 1. control (C); 2. drugs (D); 3. surgery (S); 4. surgery + sham-tDCS (SsT) and 5. surgery + tDCS (ST). Bimodal tDCS (0.5 mA) was applied for 20 min/day/8 days before the incisional model. Mechanical allodynia (von Frey) was evaluated at different time points after surgery. Cytokines and BDNF levels were evaluated in the cerebral cortex, hippocampus, brainstem, and spinal cord. Histology and activity of myeloperoxidase (MPO) and N-acetyl-β-D-glucosaminidase (NAGase) were evaluated in the surgical lesion sites in the right hind paw. The results demonstrate that the surgery procedure increased BDNF and IL-6 levels in the spinal cord levels in the hippocampus, and decreased IL-1β and IL-6 levels in the cerebral cortex, IL-6 levels in the hippocampus, and IL-10 levels in the brainstem and hippocampus. In addition, preemptive tDCS was effective in controlling postoperative pain, increasing BDNF, IL-6, and IL-10 levels in the spinal cord and brainstem, increasing IL-1β in the spinal cord, and decreasing IL-6 levels in the cerebral cortex and hippocampus, IL-1β and IL-10 levels in the hippocampus. Preemptive tDCS also contributes to tissue repair, preventing chronic inflammation, and consequent fibrosis. Thus, these findings imply that preemptive methods for postoperative pain management should be considered an interesting pain management strategy, and may contribute to the development of clinical applications for tDCS in surgical situations.
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Affiliation(s)
- Mayra Zancanaro
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Dirson J Stein
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Bettega C Lopes
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil
| | - Andressa de Souza
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil
| | - Roberta Ströher Toledo
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil
| | - Alessandra H de Souza
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil
| | - Sara M Oliveira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Fernanda Visioli
- Departamento de Odontologia Conservadora, Faculdade de Odontologia, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, 90035-003, Brazil
| | | | - Felipe Fregni
- Laboratory of Neuromodulation, Department of Physical Medicine & Rehabilitation, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard University, Boston, United States
| | - Wolnei Caumo
- Programa de Pós-Graduação em Medicina: Ciências Médicas, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil
| | - Iraci L S Torres
- Laboratório de Farmacologia da Dor e Neuromodulação: Investigações Pré-Clínicas - Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-003, Brazil; Programa de Pós-Graduação em Medicina: Ciências Médicas, Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90035-003, Brazil.
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14
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Nör F, Visioli F. Editorial: The state of the art in head and neck cancer and carcinogenesis translational research. Front Oral Health 2023; 4:1266272. [PMID: 37614848 PMCID: PMC10443091 DOI: 10.3389/froh.2023.1266272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/25/2023] Open
Affiliation(s)
- Felipe Nör
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI, United States
| | - Fernanda Visioli
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Experimental Center Research, Hospital de Clínicas, Porto Alegre, Brazil
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15
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Langie R, Pacheco VN, Szydloski VM, Corsetti A, de Quevedo AS, da Silva FP, Collares FM, Visioli F, Ponzoni D, Puricelli E. Puricelli biconvex arthroplasty: an experimental study in sheep. Head Face Med 2023; 19:33. [PMID: 37528466 PMCID: PMC10394908 DOI: 10.1186/s13005-023-00379-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 07/20/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND The aim of this study was to establish a sheep model of the Puricelli biconvex arthroplasty (ABiP) technique in sheep for evaluating its functional, biological and histological parameters. METHODS Ten Corriedale black sheep were submitted to TMJ total reconstruction with poly(methyl methacrylate) (PMMA) using ABiP and euthanized after 45 (n = 5) or 90 (n = 5) days. Control animals (n = 2) underwent sham operations and were euthanized after 45 days. Variables were assessed before the surgery (T0), immediately after (T1) and at 45 or 90 postoperative days (T2). RESULTS Histological analyses showed regression of inflammatory cells over the follow-up period. PMMA showed reduced porosity and roughness in the articular contact area. PMMA temporal components showed linear and volumetric wear in comparison to control, but no foreign body reaction was observed. The reconstructions were stable in all animals. The amplitude of mouth opening and left lateral movements were maintained, except for a reduction in the range of right lateral movements at day 90 in the experimental group. Clinical, macroscopic and radiographic observations showed that the reconstructions were stable. CONCLUSIONS The analysis of functional, biological and histological parameters in sheep submitted to ABiP showed stable results of the procedure, with maintenance of body weight and all mandibular movements, save contralateral mandibular movement, suggesting that joint function was completely maintained following the procedure. This experimental study provides support for clinical results previously reported of the ABiP technique in TMJ reconstruction procedures.
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Affiliation(s)
- Renan Langie
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil.
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil.
- Department of Oral and Maxillofacial Surgery, Santa Casa de Misericórdia de Porto Alegre (SCMPA), Porto Alegre, RS, Brazil.
- Department of Oral and Maxillofacial Surgery, Düsseldorf University Hospital (UKD), Henrich-Heine University (HHU), Düsseldorf, NRW, Germany.
| | - Viviane Neves Pacheco
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Vinicius Matheus Szydloski
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Department of Oral and Maxillofacial Surgery, Santa Casa de Misericórdia de Porto Alegre (SCMPA), Porto Alegre, RS, Brazil
| | - Adriana Corsetti
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Alexandre Silva de Quevedo
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fábio Pinto da Silva
- Laboratory of Design and Material Selection (LDSM), School of Engineering, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fabrício Mezzomo Collares
- Laboratory of Dental Materials (LAMAD), School of Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Deise Ponzoni
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Edela Puricelli
- Department of Surgery and Orthopedics, School of Dentistry / Unit of Oral and Maxillofacial Surgery, Clinics Hospital of Porto Alegre - University Hospital, Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Department of Oral and Maxillofacial Surgery, Santa Casa de Misericórdia de Porto Alegre (SCMPA), Porto Alegre, RS, Brazil
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16
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Pelà G, Visioli F, Aiello M, Solinas E, Ferrari C, Chetta A. The anti-COVID-19 vaccine unveils latent systemic sclerosis. Scand J Rheumatol 2023:1-3. [PMID: 37339397 DOI: 10.1080/03009742.2023.2211384] [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] [Received: 02/14/2023] [Accepted: 05/04/2023] [Indexed: 06/22/2023]
Affiliation(s)
- G Pelà
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Department of General and Specialistic Medicine, University-Hospital of Parma, Parma, Italy
| | - F Visioli
- Department of Molecular Medicine, University of Padova, Italy
| | - M Aiello
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Cardio-Thoracic and Vascular Department, Respiratory Disease and Lung Function Unit University-Hospital of Parma, Italy
| | - E Solinas
- Interventional Cardiology Unit, University-Hospital of Parma, Italy
| | - C Ferrari
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - A Chetta
- Department of Medicine and Surgery, University of Parma, Parma, Italy
- Cardio-Thoracic and Vascular Department, Respiratory Disease and Lung Function Unit University-Hospital of Parma, Italy
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Rubenich DS, de Souza PO, Omizzollo N, Aubin MR, Basso PJ, Silva LM, da Silva EM, Teixeira FC, Gentil GF, Domagalski JL, Cunha MT, Gadelha KA, Diel LF, Gelsleichter NE, Rubenich AS, Lenz GS, de Abreu AM, Kroeff GM, Paz AH, Visioli F, Lamers ML, Wink MR, Worm PV, Araújo AB, Sévigny J, Câmara NOS, Ludwig N, Braganhol E. Tumor-neutrophil crosstalk promotes in vitro and in vivo glioblastoma progression. Front Immunol 2023; 14:1183465. [PMID: 37292196 PMCID: PMC10244780 DOI: 10.3389/fimmu.2023.1183465] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/04/2023] [Indexed: 06/10/2023] Open
Abstract
Introduction The tumor microenvironment (TME) of glioblastoma (GB) is characterized by an increased infiltration of immunosuppressive cells that attenuate the antitumor immune response. The participation of neutrophils in tumor progression is still controversial and a dual role in the TME has been proposed. In this study, we show that neutrophils are reprogrammed by the tumor to ultimately promote GB progression. Methods Using in vitro and in vivo assays, we demonstrate the existence of bidirectional GB and neutrophil communication, directly promoting an immunosuppressive TME. Results and discussion Neutrophils have shown to play an important role in tumor malignancy especially in advanced 3D tumor model and Balb/c nude mice experiments, implying a time- and neutrophil concentration-dependent modulation. Studying the tumor energetic metabolism indicated a mitochondria mismatch shaping the TME secretome. The given data suggests a cytokine milieu in patients with GB that favors the recruitment of neutrophils, sustaining an anti-inflammatory profile which is associated with poor prognosis. Besides, glioma-neutrophil crosstalk has sustained a tumor prolonged activation via NETs formation, indicating the role of NFκB signaling in tumor progression. Moreover, clinical samples have indicated that neutrophil-lymphocyte ratio (NLR), IL-1β, and IL-10 are associated with poor outcomes in patients with GB. Conclusion These results are relevant for understanding how tumor progression occurs and how immune cells can help in this process.
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Affiliation(s)
- Dominique S. Rubenich
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Priscila O. de Souza
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Natalia Omizzollo
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Mariana R. Aubin
- Laboratório de Células, Tecidos e Genes, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Paulo J. Basso
- Departamento de Imunologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Luisa M. Silva
- Departamento de Imunologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Eloisa M. da Silva
- Departamento de Imunologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Fernanda C. Teixeira
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Gabriela F.S. Gentil
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Jordana L. Domagalski
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Maico T. Cunha
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Kerolainy A. Gadelha
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Leonardo F. Diel
- Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Nicolly E. Gelsleichter
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Aline S. Rubenich
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Gabriela S. Lenz
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Aline M. de Abreu
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Giselle M. Kroeff
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Ana H. Paz
- Laboratório de Células, Tecidos e Genes, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Laboratório de Células, Tecidos e Genes, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Marcelo L. Lamers
- Departamento de Ciências Morfológicas (ICBS), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Marcia R. Wink
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Paulo V. Worm
- Serviço de Neurocirurgia, Hospital São José, Irmandade Santa Casa de Misericórdia de Porto Alegre (ISCMPA), Departamento de Cirurgia-Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - Anelise B. Araújo
- Laboratório de Células, Tecidos e Genes, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - Jean Sévigny
- Centre de Recherche du Centre Hospitalier Universitaire (CHU) de Québec, Université Laval, Québec City, QC, Canada
- Département de Microbiologie-Infectiologie et d’Immunologie, Faculté de Médecine, Université Laval, Québec City, QC, Canada
| | - Niels O. S. Câmara
- Departamento de Imunologia, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Nils Ludwig
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Elizandra Braganhol
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
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Palma VDM, Koerich Laureano N, Frank LA, Rados PV, Visioli F. Chemoprevention in oral leukoplakia: challenges and current landscape. Front Oral Health 2023; 4:1191347. [PMID: 37293562 PMCID: PMC10244562 DOI: 10.3389/froh.2023.1191347] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/10/2023] [Indexed: 06/10/2023] Open
Abstract
Oral potentially malignant disorders have the potential to transform into oral cancer. Oral leukoplakia is a prevalent OPMD with a 9.8% malignant transformation rate. The standard management for OL involves surgical excision, but its efficacy in preventing clinical recurrence and malignant transformation is limited. Therefore, alternative strategies such as chemoprevention modalities have emerged as a promising approach to inhibit the carcinogenesis process. The aim of this review was to identify human studies that investigated the effectiveness of chemopreventive agents in preventing the progression of oral leukoplakia and to provide guidance for future research. Several systemic and topical agents have been evaluated for their potential chemopreventive effects in oral leukoplakia. Systemic agents that have been investigated include vitamin A, lycopene, celecoxib, green tea extract, ZengShengPing, Bowman Birk inhibitor, beta-carotene, curcumin, erlotinib, and metformin. In addition, topical agents tested include bleomycin, isotretinoin, ONYX-015 mouthwash, ketorolac, and dried black raspberry. Despite numerous agents that have already been tested, evidence supporting their effectiveness is limited. To improve the search for an ideal chemopreventive agent for oral leukoplakia, we propose several strategies that can be implemented. Oral leukoplakia chemoprevention presents a promising opportunity for decreasing the incidence of oral cancer. Identifying new chemopreventive agents and biomarkers for predicting treatment response should be a focus of future research.
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Affiliation(s)
- Victor de Mello Palma
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Natalia Koerich Laureano
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Luiza Abrahão Frank
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Pantelis Varvaki Rados
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Fernanda Visioli
- Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Experimental Center Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
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Gelsleichter NE, de Souza PO, Teixeira FC, Debom GN, Lenz GS, Roliano GG, de Cássia Sant'ana R, Visioli F, Fachel FNS, Michels LR, Azambuja JH, Teixeira HF, Braganhol E. Metastatic Melanoma: A Preclinical Model Standardization and Development of a Chitosan-Coated Nanoemulsion Containing Temozolomide to Treat Brain Metastasis. Cell Mol Neurobiol 2023:10.1007/s10571-023-01338-4. [PMID: 37055607 DOI: 10.1007/s10571-023-01338-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 03/13/2023] [Indexed: 04/15/2023]
Abstract
Melanoma is the most aggressive type of skin cancer. Brain metastasis is the worst scenario in metastatic melanoma and the treatment options for these patients are limited. Temozolomide (TMZ) is a chemotherapy agent used to treat primary central nervous system tumors. Our objective was to develop chitosan-coated nanoemulsion containing temozolomide (CNE-TMZ) for nasal route administration to melanoma brain metastasis treatment. A preclinical model of metastatic brain melanoma was standardized, and the efficiency of the developed formulation was further determined in vitro and in vivo. The nanoemulsion was done by spontaneous emulsification method and the formulation was characterized by size, pH, polydispersity index, and zeta potential. Culture assessments to determine cell viability were done in the A375 human melanoma cell line. To determine the safety of formulation, healthy C57/BL6 mice were treated with a nanoemulsion without TMZ. The model in vivo used B16-F10 cells implanted by stereotaxic surgery in C57/BL6 mice brains. The results demonstrate that the preclinical model used showed to be useful to analyze the efficiency of new candidate drugs to treat melanoma brain metastasis. The chitosan-coated nanoemulsions with TMZ showed the expected physicochemical characteristics and demonstrated safety and efficacy, reducing around 70% the tumor size compared to control mice, and presenting a tendency in mitotic index reduction, becoming an interesting approach to treat melanoma brain metastasis.
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Affiliation(s)
- Nicolly Espindola Gelsleichter
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Priscila Oliveira de Souza
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Fernanda Cardoso Teixeira
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Gabriela Nogueira Debom
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Gabriela Spies Lenz
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Gabriela Gonçalves Roliano
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Rita de Cássia Sant'ana
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Fernanda Visioli
- Faculdade de Odontologia, Universidade Federal Do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Flávia Nathiely Silveira Fachel
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Luana Roberta Michels
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Juliana Hofstätter Azambuja
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil
| | - Helder Ferreira Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Elizandra Braganhol
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Sarmento Leite Street, 245, Centro Histórico, Porto Alegre, RS, 90050-170, Brazil.
- Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária do Instituto de Cardiologia (IC-FUC), Porto Alegre, RS, Brazil.
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Teixeira VON, Bartikoski BJ, do Espirito Santo RC, Alabarse PVG, Ghannan K, Silva JMS, Filippin LI, Visioli F, Martinez-Gamboa L, Feist E, Xavier RM. The role of proteasome in muscle wasting of experimental arthritis. Adv Rheumatol 2023; 63:14. [PMID: 36949513 DOI: 10.1186/s42358-023-00292-5] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/05/2023] [Indexed: 03/24/2023] Open
Abstract
BACKGROUND Rheumatoid arthritis is an autoimmune inflammatory disease that often leads patients to muscle impairment and physical disability. This study aimed to evaluate changes in the activity of proteasome system in skeletal muscles of mice with collagen-induced arthritis (CIA) and treated with etanercept or methotrexate. METHODS Male DBA1/J mice were divided into four groups (n = 8 each): CIA-Vehicle (treated with saline), CIA-ETN (treated with etanercept, 5.5 mg/kg), CIA-MTX (treated with methotrexate, 35 mg/kg) and CO (healthy control group). Mice were treated two times a week for 6 weeks. Clinical score and hind paw edema were measured. Muscles were weighted after euthanasia and used to quantify proteasome activity, gene (MuRF-1, PMSα4, PSMβ5, PMSβ6, PSMβ7, PSMβ8, PSMβ9, and PSMβ10), and protein (PSMβ1, PSMβ5, PSMβ1i, PSMβ5i) expression of proteasome subunits. RESULTS Both treatments slowed disease development, but only CIA-ETN maintained muscle weight compared to CIA-MTX and CIA-Vehicle groups. Etanercept treatment showed caspase-like activity of 26S proteasome similar to CO group, while CIA-Vehicle and CIA-MTX had higher activity compared to CO group (p: 0.0057). MuRF-1 mRNA expression was decreased after etanercept administration compared to CIA-Vehicle and CO groups (p: 0.002, p: 0.007, respectively). PSMβ8 and PSMβ9 mRNA levels were increased in CIA-Vehicle and CIA-MTX compared to CO group, while CIA-ETN presented no difference from CO. PMSβ6 mRNA expression was higher in CIA-Vehicle and CIA-MTX groups than in CO group. Protein levels of the PSMβ5 subunit were increased in CO group compared to CIA-Vehicle; after both etanercept and methotrexate treatments, PSMβ5 expression was higher than in CIA-Vehicle group and did not differ from CO group expression (p: 0.0025, p: 0.001, respectively). The inflammation-induced subunit β1 (LMP2) was enhanced after methotrexate treatment compared to CO group (p: 0.043). CONCLUSIONS The results of CIA-Vehicle show that arthritis increases muscle proteasome activation by enhanced caspase-like activity of 26S proteasome and increased PSMβ8 and PSMβ9 mRNA levels. Etanercept treatment was able to maintain the muscle weight and to modulate proteasome so that its activity and gene expression were compared to CO after TNF inhibition. The protein expression of inflammation-induced proteasome subunit was increased in muscle of CIA-MTX group but not following etanercept treatment. Thus, anti-TNF treatment may be an interesting approach to attenuate the arthritis-related muscle wasting.
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Affiliation(s)
- Vivian Oliveira Nunes Teixeira
- Medical Sciences Program, Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil
| | - Bárbara Jonson Bartikoski
- Medical Sciences Program, Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil
| | - Rafaela Cavalheiro do Espirito Santo
- Medical Sciences Program, Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil.
| | - Paulo Vinícius Gil Alabarse
- Medical Sciences Program, Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil
- University of California San Diego Medical Center Library, University of California San Diego School of Medicine, San Diego, USA
| | - Khetam Ghannan
- Schwerpunkt Rheumatologie und Klinische Immunologie, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Jordana Miranda Souza Silva
- Medical Sciences Program, Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil
| | - Lidiane Isabel Filippin
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil
- Health and Human Development Department, Universidade La Salle, Canoas, Brazil
| | - Fernanda Visioli
- Patology Department, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Lorena Martinez-Gamboa
- Schwerpunkt Rheumatologie und Klinische Immunologie, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Eugen Feist
- Schwerpunkt Rheumatologie und Klinische Immunologie, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Ricardo Machado Xavier
- Medical Sciences Program, Medicine Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Laboratório de Doenças Autoimunes, Hospital de Clínicas de Porto Alegre, Ramiro Barcelos Street, Santa Cecília, Porto Alegre, 2350, Brazil
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de Souza Balbinot G, Leitune VCB, da Cunha Bahlis EA, Ponzoni D, Visioli F, Collares FM. Niobium-containing bioactive glasses modulate alkaline phosphatase activity during bone repair. J Biomed Mater Res B Appl Biomater 2023; 111:1224-1231. [PMID: 36773168 DOI: 10.1002/jbm.b.35227] [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] [Received: 10/04/2022] [Revised: 01/16/2023] [Accepted: 01/30/2023] [Indexed: 02/12/2023]
Abstract
This study aimed to evaluate the pre-clinical behavior of niobium-containing bioactive glasses (BAGNb) by their ability to promote bone repair and regulate alkaline phosphatase (ALP) levels in an animal model. BAGNbs were produced as powders and as scaffolds and surgically implanted in the femur of male rats (Wistar lineage n = 10). Glasses without Nb (BAG) were produced and implanted as well. The Autogenous Bone (AB) was used as a control. After 15, 30, and 60 days of surgical implantation, blood serum samples were collected to quantify ALP activity, and femurs were removed to assess bone repair. Bone samples were histologically processed and stained with H&E to quantify the % new bone into defects. No postoperative complications were identified. Early-stage repair (15 days) resulted in increased ALP activity for all groups, with increased values for powdered BAGNb. The maturation of the new bone led to a reduction in serum ALP levels. Histological sections showed the formation of immature bone tissue and vascularization with the progression of bone deposition to mature and functional tissue over time. BAG powder showed less new bone formation in 15 days, while the analysis at 30 and 60 days showed no difference between groups (p > .05). Niobium-containing bioactive glasses safely and successfully induced bone repair in vivo. The modulation of ALP activity may be a pathway to describe the ability of niobium-containing materials to contribute to new bone formation.
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Affiliation(s)
- Gabriela de Souza Balbinot
- Department of Dental Materials, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | - Deise Ponzoni
- Oral and Maxillofacial Surgery Unit, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fabrício Mezzomo Collares
- Department of Dental Materials, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Dos Santos NS, Gonçalves DR, Balbinot B, Visioli F. Is GRP78 (Glucose-regulated protein 78) a prognostic biomarker in differents types of cancer? A systematic review and meta-analysis. Pathol Res Pract 2023; 242:154301. [PMID: 36610326 DOI: 10.1016/j.prp.2023.154301] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 01/05/2023]
Abstract
GRP78 is a chaperone with anti-apoptotic function associated with aggressive tumors. This systematic review aimed to evaluate GRP78 expression in cancer and its relation to prognosis outcomes. This review was conducted in different databases searching for human cancer studies assessing GRP78 immunohistochemical levels on tissue samples. A total of 98 manuscripts were included. In 62% of the studies, GRP78 was associated with a worse prognosis. A meta-analysis included 29 studies that detected a significantly higher expression of GRP78 in cancer tissues (RR= 2.35, 95% CI 1.75-3.15) compared to control. A meta-analysis of 3 and 5-years Overall Survival revealed an increased risk of death for tumors with high expression of GRP78 (RR=1.36, 95%CI 1.16-1,59, I2 = 57%) and (RR=1.65, 95%CI 1.22-2.21, I2 =64%), respectively. GRP78 is an important prognostic biomarker for different types of cancer and a promising therapeutic target.
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Affiliation(s)
- Natália Souza Dos Santos
- Oral Pathology Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Brazil
| | - Douglas Rodrigues Gonçalves
- Oral Pathology Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Brazil; Oral Medicine Unit, Otorhinolaryngology Service, Hospital de Clínicas de Porto Alegre, Brazil
| | - Bianca Balbinot
- Oral Pathology Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Oral Pathology Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Brazil; Experimental Center Research, Hospital de Clínicas de Porto Alegre, Brazil.
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Santos NSD, Gonçalves DR, Balbinot BF, Visioli F. IS GRP78 (GLUCOSE-REGULATED PROTEIN 78) A PROGNOSTIC BIOMARKER IN DIFFERENTS TYPES OF CANCER? A SYSTEMATIC REVIEW. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.735] [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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Locatelli FRF, Da Silva Santos I, Hugo FN, Da Silva EL, Salgueiro AP, Visioli F, Rados PV. ORAL ALTERATIONS ASSESSMENT IN PATIENTS AT A HOSPITAL IN SOUTHERN BRAZIL. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.706] [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: 11/25/2022]
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25
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Garcia AB, Martins LN, Keppler EER, Visioli F, Maito FLDM, Rados PV, Daroit NB. ORAL MALIGNANT DIAGNOSIS OVER FIVE DECADES: A CLINICAL PATHOLOGY MULTICENTER STUDY—PRELIMINARY RESULTS. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.560] [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: 10/15/2022]
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Nunes JS, Eduardo C, Baraldi E, Longoni C, Visioli F. SPINDLE CELL TUMOR INVOLVING THE JAW OF A YOUNG PATIENT. Oral Surg Oral Med Oral Pathol Oral Radiol 2022. [DOI: 10.1016/j.oooo.2022.01.186] [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: 11/25/2022]
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Henckes NAC, Chuang L, Bosak I, Carazzai R, Garcez T, Kuhl CP, de Oliveira FDS, Loureiro Dos Santos LA, Visioli F, Cirne-Lima EO. Tissue engineering application combining epoxidized natural rubber blend and mesenchymal stem cells in in vivo response. J Biomater Appl 2022; 37:698-711. [PMID: 35733325 DOI: 10.1177/08853282221110476] [Citation(s) in RCA: 1] [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] [Indexed: 11/16/2022]
Abstract
This study aimed to investigate biocompatibility, integration, and tissue host response of the Poly (Lactic-co-Glycolic acid) (PLGA)/Poly (isoprene) (PI) epoxidized (PLGA/PIepox) innovative scaffold combined with adipose derived mesenchymal stem cells (ADSC). We implanted the scaffold subcutaneously on the back of 18 female rats and monitored them for up to 14 days. When compared to controls, PLGA/PIepox + ADSC demonstrated an earlier vascularization, a tendency of inflammation reduction, an adequate tissue integration, higher cell proliferation, and a tendency of expression of collagen decreasing. However, 14 days post-implantation we found similar levels of CD31, Ki67 and AE1/AE3 in PLGA/PIepox when compared to control groups. The interesting results, lead us to the assumption that PLGA/PIepox is able to provide an effective delivery system for ADSC on tissue host. This animal study assesses PLGA/PIepox + ADSC in in vivo tissue functionality and validation of use, serving as a proof of concept for future clinical translation as it presents an innovative and promising tissue engineering opportunity for the use in tissue reconstruction.
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Affiliation(s)
- Nicole Andréa Corbellini Henckes
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Ciências da Saúde: Ginecologia e Obstetrícia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Laura Chuang
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Isadora Bosak
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Rafael Carazzai
- Laboratório de Biomateriais e Cerâmicas Avançadas, Departamento de Materiais, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Tuane Garcez
- Unidade de Experimentação Animal - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Cristiana Palma Kuhl
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Ciências da Saúde: Ginecologia e Obstetrícia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda Dos Santos de Oliveira
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Luis Alberto Loureiro Dos Santos
- Laboratório de Biomateriais e Cerâmicas Avançadas, Departamento de Materiais, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Fernanda Visioli
- Unidade de Patologia Experimental - Centro de Pesquisa Experimental, 37895Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Odontologia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Elizabeth Obino Cirne-Lima
- Laboratório de Embriologia e Diferenciação Celular - Centro de Pesquisa Experimental, 37895Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Programa de Pós-graduação em Ciências da Saúde: Ginecologia e Obstetrícia, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Departamento de Patologia Clínica Veterinária, Faculdade de Veterinária, 28124Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Valentim Bitencourt F, Cardoso De David S, Schutz JDS, Otto Kirst Neto A, Visioli F, Fiorini T. Effect of photobiomodulation therapy on patient morbidity and wound healing at donor site after free gingival graft harvesting: a triple-blind randomized-controlled clinical trial. Clin Oral Implants Res 2022; 33:622-633. [PMID: 35305280 DOI: 10.1111/clr.13923] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 02/02/2022] [Accepted: 02/22/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES This study aimed to evaluate the effect of photobiomodulation therapy (PBMT) on patient morbidity and donor site healing after free gingival graft (FGG) harvesting. METHODS Forty-four patients requiring FGG were selected for this trial. Individuals were randomly assigned to test group (PBMT, n=22) or control group (placebo, n=22) applied immediately after surgery, 24 and 48 hours after. Demographic, surgical-related and psychosocial variables possibly associated with treatment response were collected. The primary outcome was postoperative pain at the donor site evaluated using Visual Analogue Scale (VAS) immediately after surgery and 6, 24, 48 and 72 hours after. Secondary outcomes include medication consumption, patient-reported outcome measures (PROMs) and percentage of wound closure. RESULTS Intragroup analysis showed no differences in VASLog means for placebo group throughout the study (p>0.05), whereas a significant difference in PBMT group at 6h, 24h, 48h and 72h (p<0.05) were observed. Postoperative rescue analgesic requirement was significantly higher in the placebo group (p=0.004). The number needed to treat(NNT) was 2.43. PBMT group reported significant better function related to sleeping, going to work/school and daily routine activities, less restriction to mouth opening, chewing and food consumption, less swelling and bleeding (p<0.05), mainly in the first 48hs. PBMT group presented a significantly higher palatal wound closure at 7 days compared to placebo group (33.41 vs 21.20 respectively, p=0.024) after adjustment for confounding. No adverse effects were reported. CONCLUSIONS PBMT accelerated the pain resolution time and palatal closure, decreased rescue medication consumption and significantly improved patient satisfaction in the postoperative period.
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Affiliation(s)
| | - Silvia Cardoso De David
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Jasper da Silva Schutz
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Alfredo Otto Kirst Neto
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Department of Conservative Dentistry - Oral Pathology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Tiago Fiorini
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Bruinsmann FA, de Cristo Soares Alves A, de Fraga Dias A, Lopes Silva LF, Visioli F, Raffin Pohlmann A, Figueiró F, Sonvico F, Stanisçuaski Guterres S. Nose-to-brain delivery of simvastatin mediated by chitosan-coated lipid-core nanocapsules allows for the treatment of glioblastoma in vivo. Int J Pharm 2022; 616:121563. [PMID: 35151819 DOI: 10.1016/j.ijpharm.2022.121563] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/03/2022] [Accepted: 02/05/2022] [Indexed: 12/12/2022]
Abstract
Glioblastoma is the most common and lethal malignant brain tumor. Despite simvastatin (SVT) showing potential anticancer properties, its antitumoral effect against glioblastoma appears limited when the conventional oral administration route is selected. As a consequence, nose-to-brain delivery has been proposed as an alternative route to deliver SVT into the brain. This study aimed to prepare chitosan-coated simvastatin-loaded lipid-core nanocapsules (LNCSVT-chit) suitable for nose-to-brain delivery and capable of fostering antitumor effects against glioblastoma both in vitro and in vivo. Results showed that the nanocapsules present adequate particle size (mean diameter below 200 nm), narrow particle size distribution (PDI < 0.2), positive zeta potential and high encapsulation efficiency (nearly 100%). In vitro cytotoxicity of LNCSVT-chit was comparable to non-encapsulated SVT in C6 rat glioma cells, whereas LNCSVT-chit were more cytotoxic than non-encapsulated SVT after 72 h of incubation against U-138 MG human glioblastoma cell line. In studies carried out in rats, LNCSVT-chit significantly enhanced the amount of drug in rat brain tissue after intranasal administration (2.4-fold) when compared with free SVT. Moreover, LNCSVT-chit promoted a significant decrease in tumor growth and malignancy in glioma-bearing rats in comparison to control and free SVT groups. Additionally, LNCSVT-chit did not cause any toxicity in treated rats. Considered overall, the results demonstrated that the nose-to-brain administration of LNCSVT-chit represents a novel potential strategy for glioblastoma treatment.
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Affiliation(s)
- Franciele Aline Bruinsmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Aline de Cristo Soares Alves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Amanda de Fraga Dias
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035 000, Brazil
| | - Luiz Fernando Lopes Silva
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035 000, Brazil
| | - Fernanda Visioli
- Programa de Pós-Graduação em Odontologia, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035-003, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil
| | - Fabrício Figueiró
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035 000, Brazil; Departamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre 90035-003, Brazil
| | - Fabio Sonvico
- Food and Drug Department, University of Parma, Parco Area delle Scienze 27/a, 43124 Parma, Italy; Interdepartmental Centre for Innovation in Health Products - Biopharmanet-TEC, University of Parma, Padiglione 33, Campus Universitario, 43124 Parma, PR, Italy.
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90610-000, Brazil.
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Schroeder F, Palma V, Rados P, Visioli F. Clinical and immunological features of chronic ulcerative stomatitis: a systematic review. J Oral Pathol Med 2022; 51:501-509. [DOI: 10.1111/jop.13279] [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] [Received: 09/28/2021] [Revised: 12/14/2021] [Accepted: 01/06/2022] [Indexed: 11/27/2022]
Affiliation(s)
- F.M.M. Schroeder
- Oral Medicine Department School of Dentistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil 90035‐003
| | - V.M. Palma
- Oral Medicine Department School of Dentistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil 90035‐003
| | - P.V. Rados
- Oral Medicine Department School of Dentistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil 90035‐003
| | - F. Visioli
- Oral Medicine Department School of Dentistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil 90035‐003
- Experimental Center Research Hospital de Clínicas de Porto Alegre Porto Alegre RS Brazil 90035‐903
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Silvestrin LB, Garcia IM, Visioli F, Collares FM, Leitune VCB. Physicochemical and biological properties of experimental dental adhesives doped with a guanidine-based polymer: an in vitro study. Clin Oral Investig 2022; 26:3627-3636. [PMID: 35001214 DOI: 10.1007/s00784-021-04332-6] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 12/01/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The objective of this study is to formulate experimental dental adhesives with different polyhexamethylene guanidine hydrochloride concentrations (PHMGH) and evaluate their physical, chemical, and biological properties. MATERIALS AND METHODS The experimental adhesives were formulated with 0 (control, GCTRL), 0.5 (G0.5%), 1 (G1%), or 2 (G2%) wt.% into the adhesive. The adhesives were analyzed for degree of conversion (DC%), softening in solvent (ΔKHN%), ultimate tensile strength (UTS), microtensile bond strength (μTBS) immediately and after 1 year of aging, antibacterial activity, and cytotoxicity. RESULTS There were no differences among groups for DC%, ΔKHN%, and UTS (p > 0.05%). There were no differences between each PHMGH-doped adhesive compared to GCTRL in the immediate μ-TBS (p > 0.05). Adhesives with at least 1 wt.% of PHMGH presented better stability of μ-TBS. PHMGH-doped adhesives showed improved longitudinal μ-TBS compared to GCTRL (p < 0.05). Lower Streptococcus mutans biofilm formation was observed for PHMGH-doped adhesives (p < 0.05). There was lower viability of planktonic S. mutans in the media in contact with the samples when at least 1 wt.% of PHGMGH was incorporated (p < 0.05). The formulated adhesives showed no cytotoxicity against pulp cells (p > 0.05). CONCLUSIONS The adhesive with 2 wt.% of PHMGH showed the highest antibacterial activity, without affecting the physicochemical properties and cytotoxicity, besides conferring stability for the dental adhesion. CLINICAL RELEVANCE PHMGH, a positively charged polymer, conveyed antibacterial activity to dental adhesives. Furthermore, it did not negatively affect the essential physicochemical and biocompatibility properties of the adhesives. More importantly, the incorporation of PHMGH provided stability for the μ-TBS compared to the control group without this additive.
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Affiliation(s)
- Lucas Bonfanti Silvestrin
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Isadora Martini Garcia
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Fernanda Visioli
- Oral Pathology Departament, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Fabrício Mezzomo Collares
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil
| | - Vicente Castelo Branco Leitune
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, Porto Alegre, RS, 90035-003, Brazil.
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De Souza Balbinot G, Leitune V, Zatta K, Benin T, Visioli F, Staniscauski Guterres S, Collares F. Controlled Drug Delivery in Metronidazole-Containing Bioactive Endodontic Cements. Dent Mater 2022. [DOI: 10.1016/j.dental.2021.12.132] [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: 11/16/2022]
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Locatelli FRF, da Silva Santos I, Visioli F, Hugo FN, Rados PV. Evaluation of oral alterations in patients of a private hospital in the southern region of Brazil. Spec Care Dentist 2021; 42:319-322. [PMID: 34755362 DOI: 10.1111/scd.12672] [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] [Received: 09/17/2021] [Revised: 10/10/2021] [Accepted: 10/15/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Fabiola Rampanelli Franco Locatelli
- Department of Conservative Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ingrid da Silva Santos
- Department of Conservative Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Department of Conservative Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernando Neves Hugo
- Department of Social and Preventive Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Pantelis Varvaki Rados
- Department of Conservative Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Zimmer A, Teixeira RB, Constantin RL, Fernandes-Piedras TRG, Campos-Carraro C, Türck P, Visioli F, Baldo G, Schenkel PC, Araujo AS, Belló-Klein A. Thioredoxin system activation is associated with the progression of experimental pulmonary arterial hypertension. Life Sci 2021; 284:119917. [PMID: 34478759 DOI: 10.1016/j.lfs.2021.119917] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 11/30/2020] [Revised: 08/19/2021] [Accepted: 08/22/2021] [Indexed: 11/21/2022]
Abstract
In addition to being an antioxidant, thioredoxin (Trx) is known to stimulate signaling pathways involved in cell proliferation and to inhibit apoptosis. The aim of this study was to explore the role of Trx in some of these pathways along the progression of monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH). Male rats were first divided into two groups: monocrotaline (MCT - 60 mg/kg i.p.) and control (received saline), that were further divided into three groups: 1, 2, and 3 weeks. Animals were submitted to echocardiographic analysis. Right and left ventricles were used for the measurement of hypertrophy, through morphometric and histological analysis. The lung was prepared for biochemical and molecular analysis. One week after MCT injection, there was an increase in thioredoxin reductase (TrxR) activity, a reduction in glutathione reductase (GR) activity, and an increase in Trx-1 and vitamin D3 up-regulated protein-1 (VDUP-1) expression. Two weeks after MCT injection, there was an increase in VDUP-1, Akt and cleaved caspase-3 activation, and a decrease in Trx-1 and Nrf2 expression. PAH-induced by MCT promoted a reduction in Nrf2 and Trx-1 expression as well as an increase in Akt and VDUP-1 expression after three weeks. The increase in pulmonary vascular resistance was accompanied by increased TrxR activity, suggesting an association between the Trx system and functional changes in the progression of PAH. It seems that Trx-1 activation was an adaptive response to MCT administration to cope with pulmonary remodeling and disease progression, suggesting a potential new target for PAH therapeutics.
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Affiliation(s)
- Alexsandra Zimmer
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Rayane Brinck Teixeira
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Rosalia Lempk Constantin
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Tânia Regina Gatelli Fernandes-Piedras
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Cristina Campos-Carraro
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Patrick Türck
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Laboratory of Oral Pathology, Post-Graduation Program in Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Guilherme Baldo
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Paulo Cavalheiro Schenkel
- Laboratory of Cardiovascular Physiology, Department of Physiology and Pharmacology, Biology Institute, Universidade Federal de Pelotas (UFPel), Pelotas, Rio Grande do Sul, Brazil.
| | - Alex Sander Araujo
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Adriane Belló-Klein
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
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Bahr AC, Luz JPDA, Teixeira RB, Türck P, Zimmer A, Castro ALDE, Reis EED, Visioli F, Belló-Klein A, Araujo ASDAR, Schenkel PC. The brief methylprednisolone administration is crucial to mitigate cardiac dysfunction after myocardial infarction. AN ACAD BRAS CIENC 2021; 93:e20210297. [PMID: 34706009 DOI: 10.1590/0001-3765202120210297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/01/2021] [Indexed: 01/24/2023] Open
Abstract
Acute myocardial infarction (AMI) is one of the major causes of heart failure and mortality. Glucocorticoids administration post-infarction has long been proposed, but it has shown conflicting results so far. This controversy may be associated with the glucocorticoid type and the period when it is administered. To elucidate these, the present aims to evaluate if the brief methylprednisolone acetate administration is determinant for heart adaptation after AMI. Male Wistar rats were divided into 3 groups: sham-operated (SHAM); infarcted (AMI); infarcted treated with methylprednisolone acetate (AMI+M). Immediately after surgery, the AMI+M group received a single dose of methylprednisolone acetate (40 mg/kg i.m.). After 56 days, the cardiac function was assessed and lungs, liver and heart were collected to determine rates of hypertrophy and congestion. Heart was used for oxidative stress and metalloproteinase activity analyses. Methylprednisolone acetate attenuated matrix metalloproteinase-2 activity, cardiac dilatation, and prevented the onset of pulmonary congestion, as well as avoided cardiac hypertrophy. Our data indicate that administration of methylprednisolone acetate shortly after AMI may be a therapeutic alternative for attenuation of detrimental ventricular remodeling.
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Affiliation(s)
- Alan Christhian Bahr
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Julia Paim DA Luz
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Rayane Brinck Teixeira
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Patrick Türck
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Alexsandra Zimmer
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Alexandre Luz DE Castro
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Eduardo Echer Dos Reis
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Universidade Federal do Rio Grande do Sul, Departamento de Patologia Oral, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Adriane Belló-Klein
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Alex Sander DA Rosa Araujo
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil
| | - Paulo Cavalheiro Schenkel
- Universidade Federal do Rio Grande do Sul, Departamento de Fisiologia, Instituto de Ciências Básicas da Saúde, R. Sarmento Leite, 500, 90050-170 Porto Alegre, RS, Brazil.,Universidade Federal de Pelotas, Departamento de Fisiologia e Farmacologia, R. Gomes Carneiro, 1, 96010-610 Pelotas, RS, Brazil
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da Silva EL, de Lima TB, Rados PV, Visioli F. Efficacy of topical non-steroidal immunomodulators in the treatment of oral lichen planus: a systematic review and meta-analysis. Clin Oral Investig 2021. [PMID: 34342763 DOI: 10.1007/s00784-021-04072-7/figures/10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
OBJECTIVES The aim of this systematic review was to assess the efficacy and safety of topical non-steroidal immunomodulators (TNSIs) for oral lichen planus (OLP) treatment. MATERIALS AND METHODS A search strategy designed for this purpose retrieved 1156 references. After analysis of titles and abstracts, 75 studies were selected for full-text analysis. Only randomized controlled clinical trials were selected, resulting in 28 studies included for qualitative and quantitative analysis. RESULTS The meta-analysis showed similar benefits in clinical response and symptom resolution between tacrolimus 0.1% and pimecrolimus 1% in comparison to topical steroids (TS). Pimecrolimus showed superior efficacy of clinical response but not for symptom resolution compared to placebo. Tacrolimus and pimecrolimus showed better performance preventing symptom relapse, while pimecrolimus also prevented clinical relapse better than TS. Cyclosporine was superior to placebo; however, TS showed better efficacy of clinical response. Thalidomide and retinoid were assessed in only one trial each, and both showed similar efficacy to TS. Rapamycin also presented similar clinical response to TS; however, the later showed greater reduction of symptoms. Mycophenolate mofetil 2% mucoadhesive was no better than placebo. No serious adverse effects have been reported. Cyclosporine showed a higher frequency and variety of adverse effects. CONCLUSIONS Topical tacrolimus and pimecrolimus are safe and effective alternatives for OLP treatment. CLINICAL RELEVANCE TS are usually the first choice for OLP treatment. Because some oral lesions may have a low response to treatment with TS, more topical therapeutic options, such as TNSIs, should be considered before systemic steroids are used.
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Affiliation(s)
- Eduardo Liberato da Silva
- Oral Pathology and Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Taiane Berguemaier de Lima
- Oral Pathology and Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Pantelis Varvaki Rados
- Oral Pathology and Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil
| | - Fernanda Visioli
- Oral Pathology and Oral Medicine Department, School of Dentistry, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS, 90035-003, Brazil. .,Experimental Center Research, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, 90035-903, Brazil.
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de Cristo Soares Alves A, Lavayen V, de Fraga Dias A, Bruinsmann FA, Scholl JN, Cé R, Visioli F, Oliveira Battastini AM, Stanisçuaski Guterres S, Figueiró F, Raffin Pohlmann A. EGFRvIII peptide nanocapsules and bevacizumab nanocapsules: a nose-to-brain multitarget approach against glioblastoma. Nanomedicine (Lond) 2021; 16:1775-1790. [PMID: 34313137 DOI: 10.2217/nnm-2021-0169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/21/2022] Open
Abstract
Aim: To evaluate the antitumor efficacy of bevacizumab-functionalized nanocapsules in a rat glioblastoma model after the pretreatment with nanocapsules functionalized with a peptide-specific to the epidermal growth factor receptor variant III. Materials & methods: Nanocapsules were prepared, physicochemical characterized and intranasally administered to rats. Parameters such as tumor size, histopathological characteristics and infiltration of CD8+ T lymphocytes were evaluated. Results: The strategy of treatment resulted in a reduction of 87% in the tumor size compared with the control group and a higher infiltration of CD8+ T lymphocytes in tumoral tissue. Conclusion: The block of two different molecular targets using nose-to-brain delivery represents a new and promising approach against glioblastoma.
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Affiliation(s)
- Aline de Cristo Soares Alves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Vladimir Lavayen
- Departamento de Química Inorgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS 91501-970, Brazil
| | - Amanda de Fraga Dias
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Franciele Aline Bruinsmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Juliete Nathali Scholl
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Rodrigo Cé
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Fernanda Visioli
- Programa de Pós-Graduação em Odontologia, Faculdade de Odontologia, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Porto Alegre, RS 90035-003, Brazil.,Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350, Porto Alegre, RS 90035-903, Brazil
| | - Ana Maria Oliveira Battastini
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil.,Departamento de Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
| | - Fabrício Figueiró
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil.,Departamento de Bioquímica, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, Porto Alegre, RS 90035-003, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga, 2752, Porto Alegre, RS 90610-000, Brazil
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da Cruz LLP, de Souza PO, Dal Prá M, Falchetti M, de Abreu AM, Azambuja JH, Bertoni APS, Paz AHR, Araújo AB, Visioli F, Fazolo T, da Silva GG, Worm PV, Wink MR, Zanotto-Filho A, Braganhol E. TLR4 expression and functionality are downregulated in glioblastoma cells and in tumor-associated macrophages: A new mechanism of immune evasion? Biochim Biophys Acta Mol Basis Dis 2021; 1867:166155. [PMID: 33932524 DOI: 10.1016/j.bbadis.2021.166155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/30/2021] [Accepted: 04/22/2021] [Indexed: 02/08/2023]
Abstract
Glioblastoma (GB) is the most common and aggressive form of primary brain tumor, in which the presence of an inflammatory environment, composed mainly by tumor-associated macrophages (TAMs), is related to its progression and development of chemoresistance. Toll-Like Receptors (TLRs) are key components of the innate immune system and their expression in both tumor and immune-associated cells may impact the cell communication in the tumor microenvironment (TME), further modeling cancer growth and response to therapy. Here, we investigated the participation of TLR4-mediated signaling as a mechanism of induced-immune escape in GB. Initially, bioinformatics analysis of public datasets revealed that TLR4 expression is lower in GB tumors when compared to astrocytomas (AST), and in a subset of TAMs. Further, we confirmed that TLR4 expression is downregulated in chemoresistant GB, as well as in macrophages co-cultured with GB cells. Additionally, TLR4 function is impaired in those cells even following stimulation with LPS, an agonist of TLR4. Finally, experiments performed in a cohort of clinical primary and metastatic brain tumors indicated that the immunostaining of TLR4 and CD45 are inversely proportional, and confirmed the low TLR4 expression in GBs. Interestingly, the cytoplasmic/nuclear pattern of TLR4 staining in cancer tissues suggests additional roles of this receptor in carcinogenesis. Overall, our data suggest the downregulation of TLR4 expression and activity as a strategy for GB-associated immune escape. Additional studies are necessary to better understand TLR4 signaling in TME in order to improve the benefits of immunotherapy based on TLR signaling.
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Affiliation(s)
- L L P da Cruz
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - P O de Souza
- Programa de Pós-Graduação em Biociências, UFCSPA, Porto Alegre, RS, Brazil
| | - M Dal Prá
- Programa de Pós-Graduação em Biociências, UFCSPA, Porto Alegre, RS, Brazil
| | - M Falchetti
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - A M de Abreu
- Programa de Pós-Graduação em Biociências, UFCSPA, Porto Alegre, RS, Brazil
| | - J H Azambuja
- Programa de Pós-Graduação em Biociências, UFCSPA, Porto Alegre, RS, Brazil
| | - A P S Bertoni
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil
| | - A H R Paz
- Departamento de Morfologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - A B Araújo
- Centro de Processamento Celular, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil
| | - F Visioli
- Faculdade de Odontologia, UFRGS, Porto Alegre, RS, Brazil
| | - T Fazolo
- Hospital Moinhos de Vento, Porto Alegre, RS, Brazil
| | - G G da Silva
- Hospital São José, Irmandade Santa Casa de Misericórdia de Porto Alegre (ISCMPA), Porto Alegre, RS, Brazil
| | - P V Worm
- Hospital São José, Irmandade Santa Casa de Misericórdia de Porto Alegre (ISCMPA), Porto Alegre, RS, Brazil; Departamento de Cirurgia, UFCSPA, Porto Alegre, RS, Brazil
| | - M R Wink
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Biociências, UFCSPA, Porto Alegre, RS, Brazil
| | - A Zanotto-Filho
- Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - E Braganhol
- Programa de Pós-Graduação em Ciências da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil; Programa de Pós-Graduação em Biociências, UFCSPA, Porto Alegre, RS, Brazil; Instituto de Cardiologia do Rio Grande do Sul/Fundação Universitária do Instituto de Cardiologia (IC-FUC), Porto Alegre, RS, Brazil.
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Balbinot GDS, Bahlis EADC, Visioli F, Leitune VCB, Soares RMD, Collares FM. Polybutylene-adipate-terephthalate and niobium-containing bioactive glasses composites: Development of barrier membranes with adjusted properties for guided bone regeneration. Mater Sci Eng C Mater Biol Appl 2021; 125:112115. [PMID: 33965098 DOI: 10.1016/j.msec.2021.112115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 03/29/2021] [Accepted: 04/13/2021] [Indexed: 02/08/2023]
Abstract
This study aimed to develop bioactive guided bone regeneration (GBR) membranes by manufacturing PBAT/BAGNb composites as casting films. Composites were produced by melt-extrusion, and BAGNb was added at 10 wt%, 20 wt%, and 30 wt% concentration. Pure PBAT membranes were used as a control (0wt%BAGNb). FTIR and thermogravimetric analysis characterized the composites. Barrier membranes were produced by solvent casting, and their mechanical and surface properties were assessed by tensile strength test and contact angle analysis, respectively. The ion release and cell behavior were evaluated by pH, cell proliferation, and mineralization. Composites were successfully produced, and the chemical structure showed no interference of BAGNb in the PBAT structure. The addition of BAGNb increased the stiffness of the membranes and reduced the contact angle, increasing the roughness in one side of the membrane. Sustained pH increment was observed for BAGNb-containing membranes with increased proliferation and mineralization as the concentration of BAGNb increases. The incorporation of up to 30 wt% of BAGNb into PBAT barrier membranes was able to maintain adequate chemical-mechanical properties leading to the production of materials with tailored surface properties and bioactivity. Finally, this biomaterial class showed outstanding potential and may contribute to bone formation in GBR procedures.
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Affiliation(s)
- Gabriela de Souza Balbinot
- Dental Materials Laboratory, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | | | - Fernanda Visioli
- Patology Laboratory, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | | | | | - Fabricio Mezzomo Collares
- Dental Materials Laboratory, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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Reis LB, Filippi-Chiela EC, Ashton-Prolla P, Visioli F, Rosset C. The paradox of autophagy in Tuberous Sclerosis Complex. Genet Mol Biol 2021; 44:e20200014. [PMID: 33821877 PMCID: PMC8022228 DOI: 10.1590/1678-4685-gmb-2020-0014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 01/17/2021] [Indexed: 12/21/2022] Open
Abstract
Tuberous sclerosis complex (TSC) is an autosomal dominant genetic disorder caused by germline mutations in TSC1 or TSC2 genes, which leads to the hyperactivation of the mTORC1 pathway, an important negative regulator of autophagy. This leads to the development of hamartomas in multiple organs. The variability in symptoms presents a challenge for the development of completely effective treatments for TSC. One option is the treatment with mTORC1 inhibitors, which are targeted to block cell growth and restore autophagy. However, the therapeutic effect of rapamycin seems to be more efficient in the early stages of hamartoma development, an effect that seems to be associated with the paradoxical role of autophagy in tumor establishment. Under normal conditions, autophagy is directly inhibited by mTORC1. In situations of bioenergetics stress, mTORC1 releases the Ulk1 complex and initiates the autophagy process. In this way, autophagy promotes the survival of established tumors by supplying metabolic precursors during nutrient deprivation; paradoxically, excessive autophagy has been associated with cell death in some situations. In spite of its paradoxical role, autophagy is an alternative therapeutic strategy that could be explored in TSC. This review compiles the findings related to autophagy and the new therapeutic strategies targeting this pathway in TSC.
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Affiliation(s)
- Larissa Brussa Reis
- Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
| | - Eduardo C Filippi-Chiela
- Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul (UFRGS), Instituto de Ciências Básicas da Saúde, Departamento de Ciências Morfológicas, Porto Alegre, RS, Brazil
| | - Patricia Ashton-Prolla
- Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil.,Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Genética Médica, Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Universidade Federal do Rio Grande do Sul, Faculdade de Odontologia, Departamento de Patologia Oral, Porto Alegre, RS, Brazil
| | - Clévia Rosset
- Hospital de Clínicas de Porto Alegre (HCPA), Serviço de Pesquisa Experimental, Laboratório de Medicina Genômica, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Pós-Graduação em Genética e Biologia Molecular, Porto Alegre, RS, Brazil
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Cuppini M, Garcia IM, de Souza VS, Zatta KC, Visioli F, Leitune VCB, Guterres SS, Scholten JD, Collares FM. Ionic liquid-loaded microcapsules doped into dental resin infiltrants. Bioact Mater 2021; 6:2667-2675. [PMID: 33665499 PMCID: PMC7895677 DOI: 10.1016/j.bioactmat.2021.02.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 10/22/2020] [Revised: 01/02/2021] [Accepted: 02/01/2021] [Indexed: 12/31/2022] Open
Abstract
Resin infiltrants have been effectively applied in dentistry to manage non-cavitated carious lesions in proximal dental surfaces. However, the common formulations are composed of inert methacrylate monomers. In this study, we developed a novel resin infiltrant with microcapsules loaded with an ionic liquid (MC-IL), and analyzed the physical properties and cytotoxicity of the dental resin. First, the ionic liquid 1-n-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (BMI.NTf2) was synthesized. BMI.NTf2 has previously shown antibacterial activity in a dental resin. Then, MC-IL were synthesized by the deposition of a preformed polymer. The MC-IL were analyzed for particle size and de-agglomeration effect via laser diffraction analysis and shape via scanning electron microscopy (SEM). The infiltrants were formulated, and the MC-IL were incorporated at 2.5%, 5%, and 10 wt%. A group without MC-IL was used as a control. The infiltrants were evaluated for ultimate tensile strength (UTS), contact angle, surface free energy (SFE), and cytotoxicity. The MC-IL showed a mean particle size of 1.64 (±0.08) μm, shriveled aspect, and a de-agglomeration profile suggestive of nanoparticles' presence in the synthesized powder. There were no differences in UTS among groups (p > 0.05). The incorporation of 10 wt% of MC-IL increased the contact angle (p < 0.05), while the addition from 5 wt% reduced the SFE in comparison to the control group (p < 0.05). The human cell viability was above 90% for all groups (p > 0.05). The incorporation of microcapsules as a drug-delivery system for ionic liquids may be a promising strategy to improve dental restorative materials. Ionic liquid was used as core of synthesized polymeric-based microcapsules. Microcapsules doped with ionic liquid were incorporated into a dental resin. The dental resins presented proper mechanical and biocompatibility properties. The particles incorporation reduced the surface free energy of dental resins. Biointeractivity may be obtained through MC-IL addition into dental resins.
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Affiliation(s)
- Marla Cuppini
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil
| | - Isadora Martini Garcia
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil
| | - Virgínia Serra de Souza
- Laboratory of Molecular Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Agronomia, 91501-970, Porto Alegre, RS, Brazil
| | - Kelly Cristine Zatta
- Cosmetology and Pharmaceutical Nanotechnology Laboratory, School of Pharmaceutical Sciences, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Oral Pathology Department, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil
| | - Vicente Castelo Branco Leitune
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil
| | - Sílvia Stanisçuazki Guterres
- Cosmetology Laboratory, School of Pharmaceutical Sciences, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, 90610-000, Porto Alegre, RS, Brazil
| | - Jackson Damiani Scholten
- Laboratory of Molecular Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Agronomia, 91501-970, Porto Alegre, RS, Brazil
| | - Fabrício Mezzomo Collares
- Department of Dental Materials, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil
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Zimmer A, Teixeira RB, Constantin RL, Campos-Carraro C, Aparicio Cordero EA, Ortiz VD, Donatti L, Gonzalez E, Bahr AC, Visioli F, Baldo G, Luz de Castro A, Araujo AS, Belló-Klein A. The progression of pulmonary arterial hypertension induced by monocrotaline is characterized by lung nitrosative and oxidative stress, and impaired pulmonary artery reactivity. Eur J Pharmacol 2021; 891:173699. [PMID: 33160936 DOI: 10.1016/j.ejphar.2020.173699] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 05/28/2020] [Revised: 10/20/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023]
Abstract
The time-course of pulmonary arterial hypertension in the monocrotaline (MCT) model was investigated. Male rats were divided into two groups: MCT (received a 60 mg/kg i.p. injection) and control (received saline). The MCT and control groups were further divided into three cohorts, based on the follow-up interval: 1, 2, and 3 weeks. Right ventricle (RV) catheterization was performed and RV hypertrophy (RVH) was estimated. The lungs were used for biochemical, histological, molecular, and immunohistochemical analysis, while pulmonary artery rings were used for vascular reactivity. MCT promoted lung perivascular edema, inflammatory cells exudation, greater neutrophils and lymphocytes profile, and arteriolar wall thickness, compared to CTR group. Increases in pulmonary artery pressure and in RVH were observed in the MCT 2- and 3-week groups. The first week was marked by the presence of nitrosative stress (50% moderate and 33% accentuated staining by nitrotyrosine). These alterations lead to an adaptation of NO production by NO synthase activity after 2 weeks. Oxidative stress was evident in the third week, probably by an imbalance between endothelin-1 receptors, resulting in extracellular matrix remodeling, endothelial dysfunction, and RVH. Also, it was found a reduced pulmonary arterial vasodilatory response to acetylcholine after 2 (55%) and 3 (45%) weeks in MCT groups. The relevance of this study is precisely to show that nitrosative and oxidative stress predominate in distinct time windows of the disease progression.
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Affiliation(s)
- Alexsandra Zimmer
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Rayane Brinck Teixeira
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Rosalia Lempk Constantin
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Cristina Campos-Carraro
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | | | - Vanessa Duarte Ortiz
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Luiza Donatti
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Esteban Gonzalez
- Gene Therapy Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
| | - Alan Christhian Bahr
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Fernanda Visioli
- Faculty of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Guilherme Baldo
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Gene Therapy Center, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
| | - Alexandre Luz de Castro
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Alex Sander Araujo
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
| | - Adriane Belló-Klein
- Laboratory of Cardiovascular Physiology and Reactive Oxygen Species, Physiology Department, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil.
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Stürmer M, Garcia IM, Souza VS, Visioli F, Scholten JD, Samuel SMW, Leitune VCB, Collares FM. Titanium dioxide nanotubes with triazine-methacrylate monomer to improve physicochemical and biological properties of adhesives. Dent Mater 2020; 37:223-235. [PMID: 33243438 DOI: 10.1016/j.dental.2020.11.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/03/2020] [Revised: 08/31/2020] [Accepted: 11/02/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Formulate experimental adhesives containing titanium dioxide nanotubes (nt-TiO2) or titanium dioxide nanotubes with a triazine-methacrylate monomer (nt-TiO2:TAT) and evaluate the effect of these fillers on the physical, chemical, and biological properties of the adhesives. METHODS First, nt-TiO2 were synthesized via a hydrothermal method. The nt-TiO2 were mixed with a triazine-methacrylate monomer (TAT) to formulate nt-TiO2:TAT, which were characterized by transmission electron microscopy (TEM). The nt-TiO2, TAT, and nt-TiO2:TAT were evaluated via Fourier Transform Infrared, Ultraviolet-visible, and micro-Raman spectroscopies. An experimental adhesive resin was formulated with bisphenol A glycerolate dimethacrylates, 2-hydroxyethyl methacrylate, and photoinitiator/co-initiator system. nt-TiO2 or nt-TiO2:TAT were incorporated at 2.5 wt.% and 5 wt.% in the adhesive. The base resin without nt-TiO2 or nt-TiO2:TAT was used as a control group. The adhesives were evaluated for antibacterial activity, cytotoxicity, polymerization kinetics, degree of conversion (DC), Knoop hardness, softening in solvent (ΔKHN%), ultimate tensile strength (UTS), 24 h- and 1 year- microtensile bond strength (μ-TBS). RESULTS TEM confirmed the nanotubular morphology of TiO2. FTIR, UV-vis, and micro-Raman analyses showed the characteristic peaks of each material, indicating the impregnation of TAT in the nt-TiO2. Adhesives with nt-TiO2:TAT showed antimicrobial activity against biofilm formation compared to control (p < 0.05), without differences in the viability of planktonic bacteria (p > 0.05). All groups showed high percentages of pulp cell viability. The polymerization kinetics varied among groups, but all presented DC above 50%. The addition of 5 wt.% of nt-TiO2 and both groups containing nt-TiO2:TAT showed higher values of Knoop hardness compared to the control (p < 0.05). The groups with nt-TiO2:TAT presented lower ΔKHN% (p < 0.05) and higher UTS (p < 0.05) than the control group. After one year, the group with 5 wt.% of nt-TiO2, as well as both groups containing nt-TiO2:TAT, showed higher μ-TBS than the control (p < 0.05). SIGNIFICANCE The mixing of a triazine-methacrylate monomer with the nt-TiO2 generated a filler that improved the physicochemical properties of the adhesive resins and provided antibacterial activity, which could assist in preventing carious lesions around tooth-resin interfaces. The set of physical, chemical, and biological properties of the formulated polymer, together with the greater stability of the bond strength over time, make nt-TiO2:TAT a promising filler for dental adhesive resins.
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Affiliation(s)
- Michele Stürmer
- Dental Materials Department, School of Dentistry, Federal University of Rio Grande do Sul. Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil.
| | - Isadora M Garcia
- Dental Materials Department, School of Dentistry, Federal University of Rio Grande do Sul. Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil.
| | - Virgínia S Souza
- Laboratory of Molecular Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul. Bento Gonçalves Avenue, 9500, Agronomia, 91501-970, Porto Alegre, RS, Brazil.
| | - Fernanda Visioli
- Oral Pathology Department, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil.
| | - Jackson D Scholten
- Laboratory of Molecular Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul. Bento Gonçalves Avenue, 9500, Agronomia, 91501-970, Porto Alegre, RS, Brazil.
| | - Susana M W Samuel
- Dental Materials Department, School of Dentistry, Federal University of Rio Grande do Sul. Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil.
| | - Vicente C B Leitune
- Dental Materials Department, School of Dentistry, Federal University of Rio Grande do Sul. Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil.
| | - Fabrício M Collares
- Dental Materials Department, School of Dentistry, Federal University of Rio Grande do Sul. Ramiro Barcelos Street, 2492, Rio Branco, 90035-003, Porto Alegre, RS, Brazil.
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Westermann LM, Fleischhauer L, Vogel J, Jenei-Lanzl Z, Ludwig NF, Schau L, Morellini F, Baranowsky A, Yorgan TA, Di Lorenzo G, Schweizer M, de Souza Pinheiro B, Guarany NR, Sperb-Ludwig F, Visioli F, Oliveira Silva T, Soul J, Hendrickx G, Wiegert JS, Schwartz IVD, Clausen-Schaumann H, Zaucke F, Schinke T, Pohl S, Danyukova T. Imbalanced cellular metabolism compromises cartilage homeostasis and joint function in a mouse model of mucolipidosis type III gamma. Dis Model Mech 2020; 13:dmm046425. [PMID: 33023972 PMCID: PMC7687858 DOI: 10.1242/dmm.046425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/15/2020] [Indexed: 11/23/2022] Open
Abstract
Mucolipidosis type III (MLIII) gamma is a rare inherited lysosomal storage disorder caused by mutations in GNPTG encoding the γ-subunit of GlcNAc-1-phosphotransferase, the key enzyme ensuring proper intracellular location of multiple lysosomal enzymes. Patients with MLIII gamma typically present with osteoarthritis and joint stiffness, suggesting cartilage involvement. Using Gnptg knockout (Gnptgko ) mice as a model of the human disease, we showed that missorting of a number of lysosomal enzymes is associated with intracellular accumulation of chondroitin sulfate in Gnptgko chondrocytes and their impaired differentiation, as well as with altered microstructure of the cartilage extracellular matrix (ECM). We also demonstrated distinct functional and structural properties of the Achilles tendons isolated from Gnptgko and Gnptab knock-in (Gnptabki ) mice, the latter displaying a more severe phenotype resembling mucolipidosis type II (MLII) in humans. Together with comparative analyses of joint mobility in MLII and MLIII patients, these findings provide a basis for better understanding of the molecular reasons leading to joint pathology in these patients. Our data suggest that lack of GlcNAc-1-phosphotransferase activity due to defects in the γ-subunit causes structural changes within the ECM of connective and mechanosensitive tissues, such as cartilage and tendon, and eventually results in functional joint abnormalities typically observed in MLIII gamma patients. This idea was supported by a deficit of the limb motor function in Gnptgko mice challenged on a rotarod under fatigue-associated conditions, suggesting that the impaired motor performance of Gnptgko mice was caused by fatigue and/or pain at the joint.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Lena Marie Westermann
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Lutz Fleischhauer
- Laboratory of Experimental Surgery and Regenerative Medicine, Clinic for General Trauma and Reconstructive Surgery, Ludwig-Maximilians University, 80336 Munich, Germany
- Center for Applied Tissue Engineering and Regenerative Medicine (Canter), University of Applied Sciences, 80533 Munich, Germany
| | - Jonas Vogel
- Center for Applied Tissue Engineering and Regenerative Medicine (Canter), University of Applied Sciences, 80533 Munich, Germany
| | - Zsuzsa Jenei-Lanzl
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopedic University Hospital Friedrichsheim gGmbH, 60528 Frankfurt/Main, Germany
| | - Nataniel Floriano Ludwig
- Post-Graduate Program in Genetics and Molecular Biology, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
| | - Lynn Schau
- RG Behavioral Biology, Center for Molecular Neurobiology Hamburg (ZMNH), University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Fabio Morellini
- RG Behavioral Biology, Center for Molecular Neurobiology Hamburg (ZMNH), University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Anke Baranowsky
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Timur A Yorgan
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Giorgia Di Lorenzo
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Michaela Schweizer
- Center for Molecular Neurobiology Hamburg (ZMNH), University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Bruna de Souza Pinheiro
- Department of Genetics, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
| | - Nicole Ruas Guarany
- Occupational Therapy Faculty, Federal University of Pelotas, 96010-610 Pelotas, Brazil
| | - Fernanda Sperb-Ludwig
- Department of Genetics, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
| | - Fernanda Visioli
- Pathology Department, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
| | - Thiago Oliveira Silva
- Post-Graduate Program in Medicine: Medical Sciences, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
| | - Jamie Soul
- Skeletal Research Group, Biosciences Institute, Newcastle University, Newcastle upon Tyne NE1 3BZ, UK
| | - Gretl Hendrickx
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - J Simon Wiegert
- RG Synaptic Wiring and Information Processing, Center for Molecular Neurobiology Hamburg (ZMNH), University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Ida V D Schwartz
- Department of Genetics, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
- Post-Graduate Program in Medicine: Medical Sciences, Federal University of Rio Grande do Sul, 90040-060 Porto Alegre, Brazil
| | - Hauke Clausen-Schaumann
- Center for Applied Tissue Engineering and Regenerative Medicine (Canter), University of Applied Sciences, 80533 Munich, Germany
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopedic University Hospital Friedrichsheim gGmbH, 60528 Frankfurt/Main, Germany
| | - Thorsten Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Sandra Pohl
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Tatyana Danyukova
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
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Bitencourt FV, Bender CV, Fiorini T, Gomes SC, Visioli F, Angst PDM. Periodontal condition and treatment in a patient with rare systemic condition: A case report for acid sphingomyelinase deficiency. Spec Care Dentist 2020; 41:103-110. [PMID: 33179797 DOI: 10.1111/scd.12540] [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] [Received: 06/09/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Acid sphingomyelinase deficiency (ASMD) is a rare group of autosomal recessive disorders. This report provides the first detailed description of the periodontal condition and treatment response in a patient with chronic visceral ASMD. CASE DESCRIPTION A 49-year-old white woman with ASMD showed elevated visible plaque index (VPI), gingival bleeding index (GBI), and bleeding on probing (BOP) at 100% of sites. Periodontal pocket depths (PPD) were mostly shallow to moderate (at 96% of sites), whereas the loss of clinical attachment (CAL) was moderate to severe (54% and 46% of sites, respectively, at 4-6 mm and ≥7 mm categories). Periapical radiographs revealed the presence of furcation involvement and intra-bony defects. The periodontal diagnosis was periodontitis stage IV, generalized, grade C. Ninety days after the end of the supra and subgingival control (e.g., cause-related therapy), marked reduction was observed for all periodontal indicators: VPI (-83%), GBI (-79%), BOP (-85%), elimination of sites PPD ≥7 mm, 27% increase in sites PPD 1-3 mm (from 64% to 91%), and gain of clinical attachment (gain of 11% CAL 1-3 mm and 25% CAL 4-6 mm; and a reduction of 36% CAL ≥7 mm). PRACTICAL IMPLICATIONS Despite the severity of the initial periodontal condition, the patient with chronic visceral ASMD responded well to the non-surgical periodontal treatment.
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Affiliation(s)
- Fernando Valentim Bitencourt
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Cláubia Viegas Bender
- Department of Conservative Dentistry - Oral Pathology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Tiago Fiorini
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Sabrina Carvalho Gomes
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Visioli
- Department of Conservative Dentistry - Oral Pathology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patricia Daniela Melchiors Angst
- Department of Conservative Dentistry - Periodontology, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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Góes Rabelo R, Salgueiro AP, Visioli F, da Silva VP, das Graças Alonso Oliveira M, Ribeiro DA, Cury PR, Dos Santos JN. Argyrophilic nucleolar organizer regions in oral mucosa cells of crack and cocaine users: a cross-sectional study. Environ Sci Pollut Res Int 2020; 27:37920-37926. [PMID: 32617811 DOI: 10.1007/s11356-020-09892-w] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to analyze and compare the presence of argyrophilic nucleolar organizer regions (AgNORs) in exfoliated cells obtained from the buccal mucosa among crack and cocaine users and non-users by the AgNOR staining technique. Seventy-three males ≥ 18 years were categorized into two groups: 38 crack and/or cocaine users and 35 non-user volunteers. They were interviewed and responded a questionnaire regarding general health and drug addiction. Exfoliative cytology specimens were collected from the clinically intact buccal mucosa, and cytological preparations were fixed and stained by AgNOR technique. The mean number of AgNORs (p = 0.02) and the percentage of epithelial cells with more than 3 (p = 0.01) and 4 (p = 0.04) AgNORs/nucleus were significantly higher in the non-user group. In conclusion, the frequency and diversity of substances present in the drugs-cocaine, crack, and alcohol-consumed by the volunteers of this study may have influenced the number of AgNORs and the response to damage and consequent effect on protein synthesis.
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Affiliation(s)
- Rosângela Góes Rabelo
- Dentistry and Health Postgraduation Program, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62-Canela, Salvador, Bahia, 40110-150, Brazil
| | - Arthur Pias Salgueiro
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos, 2492-Santa Cecília, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Ramiro Barcelos, 2492-Santa Cecília, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Viviane Palmeira da Silva
- Dentistry and Health Postgraduation Program, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62-Canela, Salvador, Bahia, 40110-150, Brazil
| | - Maria das Graças Alonso Oliveira
- Dentistry and Health Postgraduation Program, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62-Canela, Salvador, Bahia, 40110-150, Brazil
| | - Daniel Araki Ribeiro
- Department of Biosciences, Federal University of Sao Paulo, Silva Jardim, 136-Vila Matias, Santos, São Paulo, 11015-020, Brazil
| | - Patricia Ramos Cury
- Dentistry and Health Postgraduation Program, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62-Canela, Salvador, Bahia, 40110-150, Brazil
| | - Jean Nunes Dos Santos
- Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Bahia, Av. Araújo Pinho, 62- Canela, Salvador, Bahia, 40110-150, Brazil.
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Pacheco VN, Nolde J, de Quevedo AS, Visioli F, Ponzoni D. Improvement in the chemical structure and biological activity of surface titanium after exposure to UVC light. Odontology 2020; 109:271-278. [PMID: 32978637 DOI: 10.1007/s10266-020-00540-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 03/13/2020] [Accepted: 07/09/2020] [Indexed: 11/25/2022]
Abstract
Ultraviolet (UV) irradiation has been proposed as a method to reverse the aging process of titanium. However, the intensity, exposure time and wavelength that provide the best results have not yet been determined. The objective of this study was to evaluate the effects of photocatalysis by ultraviolet C light on the time-dependent aging of titanium and to analyze the irradiated titanium for changes in structure and in vitro biological activity, with regard to different exposure times. A titanium photofunctionalization device was developed with characteristics different from those on the market. The sample was composed of titanium disks irradiated for different times of exposure to ultraviolet C light (0, 15, 30 and 60 min). The disks were tested for surface wettability (water contact angle), topography (scanning electron microscopy-SEM) and chemical composition (X-ray photoelectron spectroscopy), and effects on cell adhesion (cell culture and SEM) and cell viability by sulforhodamine B (SRB). Ultraviolet C treatment caused changes in titanium surface characteristics, such as increased wettability and removal of hydrocarbons from the surface after 15 min of exposure in the chamber developed. The biological characteristics of the material also appear to have changed, with improved cell adhesion and viability. Photofunctionalization of titanium proved to be effective for the treatment of aged surfaces, with significant modifications in the surface chemical structure and biological activity of the material.
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Affiliation(s)
- Viviane Neves Pacheco
- Department of Surgery and Orthopedics, Dentistry College, Federal University of Rio Grande Do Sul (UFRGS), Ramiro Barcelos, Porto Alegre, 90035-003, Brazil.
| | - Josué Nolde
- Department of Surgery and Orthopedics, Dentistry College, Federal University of Rio Grande Do Sul (UFRGS), Ramiro Barcelos, Porto Alegre, 90035-003, Brazil
| | - Alexandre Silva de Quevedo
- Department of Surgery and Orthopedics, Dentistry College, Federal University of Rio Grande Do Sul (UFRGS), Ramiro Barcelos, Porto Alegre, 90035-003, Brazil
| | - Fernanda Visioli
- Department of Conservative Dentistry, Dentistry College, Federal University of Rio Grande Do Sul (UFRGS), Ramiro Barcelos, Porto Alegre, 90035-003, Brazil
| | - Deise Ponzoni
- Department of Surgery and Orthopedics, Dentistry College, Federal University of Rio Grande Do Sul (UFRGS), Ramiro Barcelos, Porto Alegre, 90035-003, Brazil
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Bender CV, da Silveira HLD, Dos Santos NS, Cavagni J, Rados PV, John AB, De Souza CFM, Giugliani R, Visioli F. Oral, dental, and craniofacial features in chronic acid sphingomyelinase deficiency. Am J Med Genet A 2020; 182:2891-2901. [PMID: 32946203 DOI: 10.1002/ajmg.a.61871] [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] [Received: 06/30/2020] [Revised: 08/25/2020] [Accepted: 08/27/2020] [Indexed: 11/11/2022]
Abstract
The aim of this study was to evaluate the oral, dental, and craniofacial features of individuals affected by the chronic forms of acid sphingomyelinase deficiency (ASMD). This study comprised a sample of adult and pediatric patients (n = 8) with chronic ASMD. The individuals underwent oral examinations to evaluate the occurrence of caries, as well as full-mouth periodontal examinations, to assess the occurrence and severity of periodontal diseases. Panoramic and profile radiographs were obtained to analyze dental conditions and craniofacial parameters. Participants also answered questionnaires to identify systemic impairment, parafunctional habits, and bruxism. Dental anomalies of size, shape, and number were found, with agenesis and microdontia being the predominant findings. The average of caries experience was 11.75 (±8.1). Only one patient had periodontal health and all adult individuals had periodontitis at different stages and degrees. Bruxism was found in 87.5% of the sample. The convex profile and maxillary and mandibular retrusion were the most relevant findings in the cephalometric analysis. It is concluded that individuals with chronic ASMD, in addition to several systemic manifestations, present significant modifications in their oral health, from a greater occurrence of dental anomalies, caries, periodontal disease, in addition to skeletal changes.
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Affiliation(s)
- Cláubia V Bender
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Heraldo L D da Silveira
- Department of Oral Radiology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Natália S Dos Santos
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Juliano Cavagni
- Department of Periodontology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Pantelis V Rados
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Angela B John
- Pulmonary Service, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Carolina F M De Souza
- Medical Genetics Service, Hospital de Clinicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Roberto Giugliani
- Medical Genetics Service, Hospital de Clinicas de Porto Alegre, Porto Alegre, RS, Brazil.,Department of Genetics, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,DR Brazil Research Group, Clinical Research Center, Hospital de Clinicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Fernanda Visioli
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Experimental Research Center, Hospital de Clinicas de Porto Alegre, Porto Alegre, RS, Brazil
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Garcia IM, Leitune VCB, Arthur RA, Nunes J, Visioli F, Giovarruscio M, Sauro S, Collares FM. Chemical, Mechanical and Biological Properties of an Adhesive Resin with Alkyl Trimethyl Ammonium Bromide-loaded Halloysite Nanotubes. J Adhes Dent 2020; 22:399-407. [PMID: 32666066 DOI: 10.3290/j.jad.a44871] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE The aim of this study was to evaluate the chemomechanical properties, antibacterial activity, and cytotoxicity of an experimental adhesive resin containing halloysite nanotubes (HNT), doped with alkyl trimethyl ammonium bromide (ATAB). MATERIALS AND METHODS A filler of HNT doped with ATAB was obtained (ATAB:HNT) and incorporated (5 wt%) into a resin blend made of bisphenol A glycerolate dimethacrylate, 2-hydroxyethyl methacrylate and a photoinitiator/co-initiator system (GATAB:HNT). The same resin blend without ATAB:HNT was used as control (Ctrl). The ATAB:HNT filler was assessed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The two tested adhesives were evaluated for degree of conversion (DC) in vitro and in situ, softening in alcohol, dentin microtensile bond strength (µTBS), antibacterial activity, and cytotoxicity (n = 5). RESULTS SEM showed that the nanotubes had a characteristic tubular-needle morphology, while the TEM analysis confirmed the presence of ATAB inside the lumens of HNT. The incorporation of ATAB:HNT induced no reduction (p > 0.05) of the DC either in situ or in vitro. No difference was encountered after the softening challenge test (p > 0.05) and no difference was found in µTBS between the two adhesives, both at 24 h (p > 0.05) and after 6 months of storage in distilled water (p > 0.05). However, ATAB:HNT reduced Streptococcus mutans viability (p < 0.05) without a cytotoxic effect on pulp cells (p > 0.05). CONCLUSIONS GATAB:HNT adhesive demonstrated appropriate polymerization without significant differences in softening after solvent immersion, while concomitantly maintaining reliable bond strength after 6 months of water aging. Moreover, the ATAB:HNT filler can provide antibacterial activity to the adhesive resin without affecting pulp cell viability.
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da Silva VP, Meyer GDL, Daroit NB, Maraschin BJ, de Oliveira MG, Visioli F, Rados PV. Pericoronal follicles revealing unsuspected odontogenic cysts and inflammatory lesions: A retrospective microscopy study. Indian J Dent Res 2020; 31:80-84. [PMID: 32246687 DOI: 10.4103/ijdr.ijdr_459_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/04/2022] Open
Abstract
Aim This study aimed to analyze the prevalence of diseases related to pericoronal follicles, and assess the rate of concordance between clinical and histopathological diagnoses. Methods Histologically, we analyzed 1,298 tissue samples surrounding the crowns of teeth that were diagnosed clinically as pericoronal follicles. In addition, we determined associations among histopathological diagnosis, patients' age and sex, tissue site, presence of nests of odontogenic epithelium, presence of reduced enamel epithelium, and presence of diffuse inflammation. Results Odontogenic pathologies were present in 35% of the samples, and rate of concordance between clinical and histopathological diagnoses was 0.54. Probability of developing odontogenic pathologies was high in the mandibular molars (odds ratio: 2.13) and in the tissues with odontogenic epithelial remnants (odds ratio: 1.2), reduced enamel epithelium (odds ratio: 1.3), and diffuse inflammation. (odds ratio: 10.5). Conclusions The findings of this study highlight the clinical relevance of histopathological examination of the pericoronal tissue in unerupted and partially erupted teeth for early diagnosis of pathologies because this study demonstrated the odontogenic cysts and inflammatory lesions in tissues clinically diagnosed as pericoronal follicles.
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