1
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de Moura FBR, Ferreira BA, Deconte SR, Landim BC, Justino AB, Aro AAD, Espindola FS, Rodrigues RAF, Ribeiro DL, Araújo FDA, Tomiosso TC. Wound healing activity of the hydroethanolic extract of the leaves of Maytenus ilicifolia Mart. Ex Reis. J Tradit Complement Med 2021; 11:446-456. [PMID: 34522639 PMCID: PMC8427480 DOI: 10.1016/j.jtcme.2021.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 03/15/2021] [Accepted: 03/26/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND AND AIM Maytenus ilicifolia has analgesic, healing, antioxidant and anti-inflammatory properties. This study evaluated effect of the hydroalcoholic extract of M. ilicifolia leaves on skin wound repair. EXPERIMENTAL PROCEDURE Wounds were induced on mice and treated with the extract. The treatment was performed daily, until day 7 after wound induction. Wound closure was measured and the features of the repaired tissue were investigated, including mast cell quantification, neutrophil and macrophage activities, collagen deposition, angiogenesis, and pro-metalloproteases and metalloproteases 2 and 9 activity (pro-MMPs and MMPs). RESULTS AND CONCLUSION The M. ilicifolia extract accelerated the closure of wounds. The extract at a concentration of 4% was found to be effective, presenting anti-inflammatory effects and hemoglobin increased, along with increased soluble, total and type III collagens in the wound. In addition, there was an increase in pro-MMP9 and MMP9 activity after day 7th of treatment. The phenolic compounds and tannins present in this plant could be associated with the anti-inflammatory and healing activities observed in this study. Therefore, the ability to modulate essential parameters for accelerated and adequate healing as shown here suggests that the use of standardised extracts of M. ilicifolia and its fractions enriched in polyphenols may represent a therapeutic strategy for the treatment of wounds.
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Affiliation(s)
- Francyelle Borges Rosa de Moura
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
- Institute of Biology, State University of Campinas, Street Monteiro Lobato, 255, zip code 13083-862, Campinas, SP, Brazil
| | - Bruno Antonio Ferreira
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
- Institute of Biotechnology, Federal University of Uberlândia, Street Acre 1004, zip code 38405-319, Uberlândia, MG, Brazil
| | - Simone Ramos Deconte
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
| | - Breno Costa Landim
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
| | - Allisson Benatti Justino
- Institute of Biotechnology, Federal University of Uberlândia, Street Acre 1004, zip code 38405-319, Uberlândia, MG, Brazil
| | - Andrea Aparecida de Aro
- Institute of Biology, State University of Campinas, Street Monteiro Lobato, 255, zip code 13083-862, Campinas, SP, Brazil
| | - Foued Salmen Espindola
- Institute of Biotechnology, Federal University of Uberlândia, Street Acre 1004, zip code 38405-319, Uberlândia, MG, Brazil
| | - Rodney Alexandre Ferreira Rodrigues
- Multidisciplinary Center of Chemical, Biological and Agricultural Research, State University of Campinas, Street Alexandre Cazelatto 999, zip code 13148-218, Paulínia, SP, Brazil
| | - Daniele Lisboa Ribeiro
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
| | - Fernanda de Assis Araújo
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
| | - Tatiana Carla Tomiosso
- Institute of Biomedical Sciences, Federal University of Uberlândia, Avenue Pará 1720, zip code 38400-902, Uberlândia, MG, Brazil
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2
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Freitas KM, Silva ACAE, Veloso ES, Ferreira Ê, Barcelos LS, Caliari MV, Salas CE, Lopes MTP. P1G10, the Proteolytic Fraction from Vasconcellea cundinamarcensis, Stimulates Tissue Repair after Acute Exposure to Ultraviolet B Radiation. Int J Mol Sci 2019; 20:E4373. [PMID: 31489890 PMCID: PMC6770601 DOI: 10.3390/ijms20184373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 08/16/2019] [Accepted: 08/28/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND P1G10 is a cysteine proteolytic fraction from Vasconcellea cundinamarcensis latex, obtained by chromatographic separation on Sephadex-G10 and ultrafiltration. This fraction enhances healing in different models of skin lesions, and displays a protective/healing effect against gastric ulcers, where it was suggested an antioxidant role. METHODS We evaluated here the effect of topical treatment with P1G10, in mice lesions induced by UVB. RESULTS After single exposure to 2.4 J cm-2 UVB, P1G10 reduced erythema, increased cellularity of hypodermis, enhanced MPO activity and IL1β, and inhibited COX2 levels. These results point to an anti-inflammatory effect by P1G10. This fraction displayed antioxidant activity by reversing the depletion of glutathione (GSH), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and reducing the catalase activity increased by UVB. These changes may be related to a reduction in MDA observed in groups treated with P1G10. P1G10 also inhibited MMP-9, caspase-3 and pkat while increasing p53 levels.
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Affiliation(s)
- Kátia M Freitas
- Departamento de Farmacologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
| | - Ana C Araújo E Silva
- Departamento de Farmacologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
- Faculdade de Medicina do Mucuri, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Rua do Cruzeiro, nº 01, Bairro Jardim São Paulo, Teófilo Otoni 39803-371, MG, Brazil.
| | - Emerson S Veloso
- Departamento de Patologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
| | - Ênio Ferreira
- Departamento de Patologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
| | - Lucíola S Barcelos
- Departamento Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
| | - Marcelo V Caliari
- Departamento de Patologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
| | - Carlos E Salas
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
| | - Miriam T P Lopes
- Departamento de Farmacologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av Antônio Carlos 6627, Belo Horizonte 31270-901, MG, Brazil.
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3
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Turner CT, Hiroyasu S, Granville DJ. Granzyme B as a therapeutic target for wound healing. Expert Opin Ther Targets 2019; 23:745-754. [PMID: 31461387 DOI: 10.1080/14728222.2019.1661380] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Introduction: Granzyme B is a serine protease traditionally understood as having a role in immune-mediated cytotoxicity. Over the past decade, this dogma has been challenged, with a new appreciation that granzyme B can exert alternative extracellular roles detrimental to wound closure and remodeling. Granzyme B is elevated in response to tissue injury, chronic inflammation and/or autoimmune skin diseases, resulting in impaired wound healing. Areas covered: This review provides a historical background of granzyme B and a description of how it is regulated. Details are provided on the role of granzyme B in apoptosis as well as newly identified extracellular roles, focusing on those affecting wound healing, including on inflammation, dermal-epidermal junction separation, re-epithelialization, scarring and fibrosis, and autoimmunity. Finally, the use of pharmacological granzyme B inhibitors as potential therapeutic options for wound treatment is discussed. Expert opinion: Endogenous extracellular granzyme B inhibitors have not been identified in human bio-fluids, thus in chronic wound environments granzyme B appears to remain uncontrolled and unregulated. In response, targeted granzyme B inhibitors have been developed for therapeutic applications in wounds. Animal studies trialing inhibitors of granzyme B show improved healing outcomes, and may therefore provide a novel therapeutic approach for wound treatment.
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Affiliation(s)
- Christopher T Turner
- International Collaboration On Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia , Vancouver , BC , Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia , Vancouver , BC , Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group , Vancouver , BC , Canada
| | - Sho Hiroyasu
- International Collaboration On Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia , Vancouver , BC , Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia , Vancouver , BC , Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group , Vancouver , BC , Canada
| | - David J Granville
- International Collaboration On Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia , Vancouver , BC , Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia , Vancouver , BC , Canada.,British Columbia Professional Firefighters' Burn and Wound Healing Group , Vancouver , BC , Canada
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4
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Orellano LAA, de Almeida SA, Pereira LX, Couto LC, de Lazari MGT, Viana CTR, Andrade SP, Campos PP. Upregulation of Foreign Body Response in Obese Mice. Obesity (Silver Spring) 2018; 26:531-539. [PMID: 29377630 DOI: 10.1002/oby.22102] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 11/14/2017] [Accepted: 11/27/2017] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Obesity is a highly prevalent multifactorial metabolic condition in which the need for functional bioengineered substitutes (e.g., scaffolds for tissue engineering) is likely to occur. However, the adverse foreign body response (FBR) that invariably takes place adjacent to implant devices impairing their function is poorly characterized in this condition. This study investigated the influence of obesity on the host response to a synthetic matrix implanted subcutaneously in high-fat-fed obese mice. METHODS Histological analysis of 14-day-old implants was performed to identify collagen deposition, capsule thickness, fibroblast-like cells, foreign body giant cells, and mast cells. In addition, transforming growth factor β1 (TGF-β1) levels in the implants and serum were determined. RESULTS All fibrogenic markers (and TGF-β1 levels) increased in the implants of obese mice compared with their nonobese counterparts. Particularly relevant was the fibrous capsule thickness in implants of obese mice (234.2 ± 22.1 µm vs. 109.2 ± 13.4 µm in implants of nonobese animals). CONCLUSIONS The study results showing that obesity upregulates the main features of the FBR induced by subcutaneous implants in mice may be relevant in understanding biomaterial integration and performance in this condition. This is crucial to the development of strategies to maintain the integrity and function of implantable devices.
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Affiliation(s)
- Laura Alejandra Ariza Orellano
- Department of General Pathology, Federal University of Minas Gerais, Institute of Biological Sciences, Belo Horizonte, Minas Gerais, Brazil
| | - Simone Aparecida de Almeida
- Department of General Pathology, Federal University of Minas Gerais, Institute of Biological Sciences, Belo Horizonte, Minas Gerais, Brazil
| | - Luciana Xavier Pereira
- Department of General Pathology, Federal University of Minas Gerais, Institute of Biological Sciences, Belo Horizonte, Minas Gerais, Brazil
| | - Letícia Chinait Couto
- Department of General Pathology, Federal University of Minas Gerais, Institute of Biological Sciences, Belo Horizonte, Minas Gerais, Brazil
| | | | - Celso Tarso Rodrigues Viana
- Department of General Pathology, Federal University of Minas Gerais, Institute of Biological Sciences, Belo Horizonte, Minas Gerais, Brazil
| | - Silvia Passos Andrade
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Paula Peixoto Campos
- Department of General Pathology, Federal University of Minas Gerais, Institute of Biological Sciences, Belo Horizonte, Minas Gerais, Brazil
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5
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Saraswati S, Alhaider AA, Abdelgadir AM. Costunolide suppresses an inflammatory angiogenic response in a subcutaneous murine sponge model. APMIS 2018; 126:257-266. [DOI: 10.1111/apm.12808] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 11/24/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Sarita Saraswati
- Camel Biomedical Research Unit; College of Pharmacy and Medicine; King Saud University; Riyadh Saudi Arabia
| | - Abdulqader A. Alhaider
- Department of Physiology; College of Medicine; King Saud University; Riyadh Saudi Arabia
| | - Abdelgalil M. Abdelgadir
- Department of Basic Medical Sciences; College of Medicine; King Saud bin Abdulaziz University for Health Sciences; Riyadh Saudi Arabia
- King Abdulaziz Medical City; National Guard Health Affairs; Riyadh Saudi Arabia
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6
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Park K, Amano H, Ito Y, Mastui Y, Kamata M, Yamazaki Y, Takeda A, Shibuya M, Majima M. Vascular endothelial growth factor receptor 1 (VEGFR1) tyrosine kinase signaling facilitates granulation tissue formation with recruitment of VEGFR1 + cells from bone marrow. Anat Sci Int 2017; 93:372-383. [PMID: 29256114 DOI: 10.1007/s12565-017-0424-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 11/26/2017] [Indexed: 01/09/2023]
Abstract
Vascular endothelial growth factor (VEGF)-A facilitates wound healing. VEGF-A binds to VEGF receptor 1 (VEGFR1) and VEGFR2 and induces wound healing through the receptor's tyrosine kinase (TK) domain. During blood flow recovery and lung regeneration, expression of VEGFR1 is elevated. However, the precise mechanism of wound healing, especially granulation formation on VEGFR1, is not well understood. We hypothesized that VEGFR1-TK signaling induces wound healing by promoting granulation tissue formation. A surgical sponge implantation model was made by implanting a sponge disk into dorsal subcutaneous tissue of mice. Granulation formation was estimated from the weight of the sponge and the granulation area from the immunohistochemical analysis of collagen I. The expression of fibroblast markers was estimated from the expression of transforming growth factor-beta (TGF-β) and cellular fibroblast growth factor-2 (FGF-2) using real-time PCR (polymerase chain reaction) and from the immunohistochemical analysis of S100A4. VEGFR1 TK knockout (TK-/-) mice exhibited suppressed granulation tissue formation compared to that in wild-type (WT) mice. Expression of FGF-2, TGF-β, and VEGF-A was significantly suppressed in VEGFR1 TK-/- mice, and the accumulation of VEGFR1+ cells in granulation tissue was reduced in VEGFR1 TK-/- mice compared to that in WT mice. The numbers of VEGFR1+ cells and S100A4+ cells derived from bone marrow (BM) were higher in WT mice transplanted with green fluorescent protein (GFP) transgenic WT BM than in VEGFR1 TK-/- mice transplanted with GFP transgenic VEGFR1 TK-/- BM. These results indicated that VEGFR1-TK signaling induced the accumulation of BM-derived VEGFR1+ cells expressing F4/80 and S100A4 and contributed to granulation formation around the surgically implanted sponge area in a mouse model.
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Affiliation(s)
- Keiichi Park
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan.,Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Hideki Amano
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan.
| | - Yoshiya Ito
- Department of Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Yoshio Mastui
- Department of Thoracic Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Mariko Kamata
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan
| | - Yasuharu Yamazaki
- Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Akira Takeda
- Department of Plastic and Aesthetic Surgery, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan
| | - Masabumi Shibuya
- Gakubunkan Institute of Physiology and Medicine, Jobu University, Isesaki, Gunma, Japan
| | - Masataka Majima
- Department of Pharmacology, Kitasato University School of Medicine, 1-15-1 Kitasato, Sagamihara, Kanagawa, 252-0373, Japan
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7
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Abstract
The host response observed after the application of an appropriate stimulus, such as mechanical injury or injection of neoplastic or normal tissue implants, has allowed the cataloging of a number of molecules and cells involved in the vascularization of normal repair or neoplastic tissue. Implantation of sponge matrices has been adopted as a model for the accurate quantification of angiogenic and fibrogenic responses, as they may occur during wound healing, in vivo. Such implants are particularly useful because they offer scope for modulating the environment within which angiogenesis occurs. Sponge implantation model has been optimized and adapted to characterize essential components and their roles in blood vessels formation in a variety of physiological and pathological conditions. As a direct consequence of advances in genetic manipulation, mouse models (i.e., knockouts, SCID, nude) have provided resources to delineate the mechanisms regulating the healing associated with implants. Here we outline the usefulness of the sponge implant model of angiogenesis and detailed description of the methodology.
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Affiliation(s)
- Silvia Passos Andrade
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Campus Pampulha, Cx. Post. 486, CEP 31270-901, Belo Horizonte, MG, Brazil.
| | - Mônica Alves Neves Diniz Ferreira
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627, Campus Pampulha, Cx. Post. 486, CEP 31270-901, Belo Horizonte, MG, Brazil
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8
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Cassini-Vieira P, Felipetto M, Prado LB, Verano-Braga T, Andrade SP, Santos RAS, Teixeira MM, de Lima ME, Pimenta AMC, Barcelos LS. Ts14 from Tityus serrulatus boosts angiogenesis and attenuates inflammation and collagen deposition in sponge-induced granulation tissue in mice. Peptides 2017; 98:63-69. [PMID: 27732900 DOI: 10.1016/j.peptides.2016.10.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 10/04/2016] [Accepted: 10/06/2016] [Indexed: 12/18/2022]
Abstract
We have previously described a 25mer anti-hypertensive peptide, previously named TsHpt-I (Tityus serrulatus Hypotensin-I), now Ts14, as an agonist of B2 kinin receptor. Bradykinin is known to play physiological roles in angiogenic, inflammatory, and fibrogenic processes, mostly mediated by B2 receptor. Therefore, we investigated whether Ts14 could modulate key events (neovascularization, inflammatory cell recruitment, and extracellular matrix deposition) of the fibrovascular tissue, induced by polyether-polyurethane sponge implants in mice. Sponges were implanted in the dorsum of 7-week-old C57Bl/6 male mice that received daily intrasponge treatment with Ts14 (27.25μg/sponge/day in 10μL PBS) or vehicle (10μL PBS/sponge/day) and were assessed on day 7 after surgery. Hemoglobin content, blood flow (laser Doppler perfusion imaging), and VEGF levels in the implants, used as indices of vascularization, indicated that Ts14 enhanced angiogenesis in implants relative to the PBS-treated group. Interestingly, Ts14 reduced TNF-α levels and neutrophil infiltration, although stimulated macrophage infiltration into implants, as determined by myeloperoxidase (MPO) and N-acetyl-β-d-glucosaminidase (NAG) enzyme activities, respectively. Regarding the fibrogenic component (soluble collagen content and Sirius-red histological staining), we observed that Ts14 inhibited collagen deposition in the implants. Overall, our results suggest that Ts14 exerts proangiogenic, anti-inflammatory, and anti-fibrogenic activities. These effects may indicate a therapeutical potential of this peptide in conditions where angiogenesis, inflammation, and fibrogenesis contribute to disease progression and chronicity.
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Affiliation(s)
- Puebla Cassini-Vieira
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Mariane Felipetto
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Leandro Barbosa Prado
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Thiago Verano-Braga
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Silvia Passos Andrade
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Robson A S Santos
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Mauro Martins Teixeira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Maria Elena de Lima
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Adriano M C Pimenta
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil
| | - Luciola Silva Barcelos
- Departamento de Fisiologia e Biofísica, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Minas Gerais, Brazil.
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9
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Castanheira LE, Lopes DS, Gimenes SNC, Deconte SR, Ferreira BA, Alves PT, Filho LRG, Tomiosso TC, Rodrigues RS, Yoneyama KAG, Araújo FDA, Rodrigues VDM. Angiogenenic effects of BpLec, a C-type lectin isolated from Bothrops pauloensis snake venom. Int J Biol Macromol 2017; 102:153-161. [PMID: 28392382 DOI: 10.1016/j.ijbiomac.2017.04.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 03/31/2017] [Accepted: 04/04/2017] [Indexed: 12/16/2022]
Abstract
The present work reports the effects of a C-type lectin (BpLec) isolated from Bothrops pauloensis snake venom upon in vitro and in vivo angiogenesis models. Initially, we noted that BpLec was not cytotoxic to endothelial cells (tEnd) in doses up to 40μg/mL, but lower doses (2.5μg/mL, 5μg/mL, 10μg/mL and 20μg/mL) reduced tEnd cells adhesion to some extracellular matrix proteins and inhibited the in vitro vessel formation in Matrigel assay stimulated by bFGF. β-galactosides (d-lactose, N-acetyl-d-galactosamine and d-galactose) at 400mM reversed the effect of BpLec on tEnd cells adhesion, whereas d-galactose (400mM) partially reversed BpLec property of inhibiting vessel formation by tEnd cells in Matrigel. In vivo assays showed that BpLec increased hemoglobin content and capillary vessels number in polyether-polyurethane sponge discs subcutaneously implanted into dorsal skin mice. Additionally, BpLec also reduced collagen deposition and did not induce a pro-inflammatory response, as demonstrated by the decreased the secretion of some inflammatory cytokines, whereas myeloperoxidase (MPO) and N-acetylglucosaminidase (NAG) activities were not altered by BpLec. Taken together, our results indicate that BpLec might represent an interesting angiogenesis and inflammatory modulator that could also be used for searching possible therapeutic targets involved in these processes.
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Affiliation(s)
- Letícia Eulalio Castanheira
- Laboratório de Bioquímica e Toxinas Animais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Daiana Silva Lopes
- Laboratório de Bioquímica e Toxinas Animais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Sarah Natalie Cirilo Gimenes
- Laboratório de Bioquímica e Toxinas Animais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Simone Ramos Deconte
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Bruno Antônio Ferreira
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Patricia Terra Alves
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | | | - Tatiana Carla Tomiosso
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Renata Santos Rodrigues
- Laboratório de Bioquímica e Toxinas Animais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Kelly Aparecida Geraldo Yoneyama
- Laboratório de Bioquímica e Toxinas Animais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Fernanda de Assis Araújo
- Laboratório de Nanobiotecnologia, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Veridiana de Melo Rodrigues
- Laboratório de Bioquímica e Toxinas Animais, Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, UFU, Uberlândia, MG, Brazil.
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10
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Avishai E, Yeghiazaryan K, Golubnitschaja O. Impaired wound healing: facts and hypotheses for multi-professional considerations in predictive, preventive and personalised medicine. EPMA J 2017; 8:23-33. [PMID: 28620441 PMCID: PMC5471802 DOI: 10.1007/s13167-017-0081-y] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 01/29/2017] [Indexed: 12/14/2022]
Abstract
Whereas the physiologic wound healing (WH) successfully proceeds through the clearly defined sequence of the individual phases of wound healing, chronic non-healing wounds/ulcers fail to complete the individual stages and the entire healing process. There are many risk factors both modifiable (such as stress, smoking, inappropriate alcohol consumption, malnutrition, obesity, diabetes, cardio-vascular disease, etc.) and non-modifiable (such as genetic diseases and ageing) strongly contributing to the impaired WH. Current statistics demonstrate that both categories are increasingly presented in the populations, which causes dramatic socio-economic burden to the healthcare sector and society at large. Consequently, innovative concepts by predictive, preventive and personalised medicine are crucial to be implemented in the area. Individual risk factors, causality, functional interrelationships, molecular signature, predictive diagnosis, and primary and secondary prevention are thoroughly analysed followed by the expert recommendations in this paper.
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Affiliation(s)
- Eden Avishai
- Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Kristina Yeghiazaryan
- Radiological Clinic, Medical Faculty, Friedrich-Wilhels-University of Bonn, Sigmund-Freud-Str. 25, 53105 Bonn, Germany
| | - Olga Golubnitschaja
- Radiological Clinic, Medical Faculty, Friedrich-Wilhels-University of Bonn, Sigmund-Freud-Str. 25, 53105 Bonn, Germany
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Vascular endothelial growth factor receptor-1 (VEGFR-1) signaling enhances angiogenesis in a surgical sponge model. Biomed Pharmacother 2016; 78:140-149. [PMID: 26898435 DOI: 10.1016/j.biopha.2016.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF)-A binds to both VEGF receptor (VEGFR)-1 and VEGFR-2, thereby promoting angiogenesis. It is widely accepted that VEGF-A, especially VEGFR-2, is a central player in angiogenesis, however the role of VEGFR-1 in angiogenesis remains unclear. The present study was conducted to examine the role of VEGFR-1 signaling in angiogenesis, using a quantitative in vivo angiogenesis model. METHODS Polyurethane sponge disks were implanted into dorsal subcutaneous tissue of mice. Angiogenesis was estimated by determining the number of CD31(+) vessels by immunohistochemical analysis. The expression of pro-angiogenic factors was quantified by reverse transcription quantitative polymerase chain reaction. RESULTS Compared to control IgG-treated mice, the number of CD31(+) vessels in the sponge implant was significantly suppressed in anti-VEGF-A neutralizing antibody-treated mice. CD31(+) vessel counts were suppressed in VEGFR-1 tyrosine kinase knockout (TKKO) mice, at the same level as in VEGFR-2 tyrosine kinase inhibitor (ZD6474)-treated mice compared to wild-type (WT) mice. The accumulation of VEGFR-1(+) cells in granulation tissue was significantly suppressed in VEGFR-1 TKKO mice compared to WT mice. In addition, expression of the pro-angiogenic growth factors, VEGF-A, matrix metalloproteinase-2, interleukin-6, and basic fibroblast growth factor in granulation tissue was suppressed in VEGFR-1 TKKO mice. A bone marrow (BM) transplantation experiment showed that the number of VEGFR-1(+) BM-derived cells and angiogenesis were significantly suppressed in VEGFR-1 TKKO mice transplanted with green fluorescent protein (GFP)(+) VEGFR-1 TKKO BM compared to WT mice transplanted with GFP(+) WT BM. CONCLUSIONS These results suggest that the VEGFR-1 tyrosine kinase signaling has an effect on angiogenesis. A selective VEGFR-1 agonist/antagonist could be a candidate therapeutic agent to control angiogenesis with recruitment of BM cells.
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PLGA nanofibers improves the antitumoral effect of daunorubicin. Colloids Surf B Biointerfaces 2015; 136:248-55. [DOI: 10.1016/j.colsurfb.2015.09.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 11/19/2022]
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De Oliveira LG, Figueiredo LA, Fernandes-Cunha GM, Marina Barcelos DM, Machado LA, Dasilva GR, Sandra Aparecida Lima DM. Methotrexate Locally Released from Poly(e-Caprolactone) Implants: Inhibition of the Inflammatory Angiogenesis Response in a Murine Sponge Model and the Absence of Systemic Toxicity. J Pharm Sci 2015; 104:3731-42. [DOI: 10.1002/jps.24569] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 06/10/2015] [Accepted: 06/15/2015] [Indexed: 01/15/2023]
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Pollock T, Moreno CR, Sánchez L, Ceballos-Vasquez A, Faure PA, Mora EC. Wound healing in the flight membranes of wild big brown bats. J Wildl Manage 2015. [DOI: 10.1002/jwmg.997] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tyler Pollock
- Department of Psychology, Neuroscience and Behaviour; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
| | - Christian R. Moreno
- Department of Animal and Human Biology; Havana University; 455-25 Street Havana 10400 Cuba
| | - Lida Sánchez
- Department of Animal and Human Biology; Havana University; 455-25 Street Havana 10400 Cuba
| | - Alejandra Ceballos-Vasquez
- Department of Psychology, Neuroscience and Behaviour; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
| | - Paul A. Faure
- Department of Psychology, Neuroscience and Behaviour; McMaster University; 1280 Main Street West Hamilton ON L8S 4K1 Canada
| | - Emanuel C. Mora
- Department of Animal and Human Biology; Havana University; 455-25 Street Havana 10400 Cuba
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Michel AFRM, Melo MM, Campos PP, Oliveira MS, Oliveira FAS, Cassali GD, Ferraz VP, Cota BB, Andrade SP, Souza-Fagundes EM. Evaluation of anti-inflammatory, antiangiogenic and antiproliferative activities of Arrabidaea chica crude extracts. JOURNAL OF ETHNOPHARMACOLOGY 2015; 165:29-38. [PMID: 25683298 DOI: 10.1016/j.jep.2015.02.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 01/25/2015] [Accepted: 02/04/2015] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Arrabidaea chica (Bignoniacea) has been used in popular medicine in Brazil to treat inflammation, skin diseases and leukemia. This work aimed to investigate the anti-inflammatory and antitumoral activities of the A. chica aqueous (AE) and ethanol (EE) extracts. MATERIALS AND METHODS The murine sponge model was used to evaluate the anti-inflammatory and antiangiogenic activities of AE and EE. Accumulation of neutrophil and macrophage in the implants were determined by assaying myeloperoxidase and N-acetyl-glucosaminidase activities and the neovascularization evaluated by the amount of hemoglobin present in the implant using the Drabkin method. The antitumoral activity was evaluated using the MTT colorimetric method against Jurkat, HL60 and MCF-7 cells. Semi-purified fractions F1-F4 from the EE extract were obtained by a liquid-liquid solvent extraction method and their in vitro anti-proliferative effects were also investigated. RESULTS Ethanol and aqueous extracts of A. chica decreased neutrophil accumulation and hemoglobin content in the sponge implants without altering the level of cytokines (IL-2, IL- 4, IL-5, IFN-γ, TNF-α and VEGF) and the albumin/globulin ratio in the serum of treated animals. There was no sign of toxicity (clinical, laboratory or histopathology). The ethanol extract presented antiproliferative activity (IC50 21.5-36.3 µg/mL) against HL60 and Jurkat cell lineages and proapoptotic activity at 50 µg/mL in HL60 cells. The fraction F1 also demonstrated significant antiproliferative activity (IC50 38.5 µg/mL) and proapoptotic activity against HL60 cells in a dose dependent manner. CONCLUSIONS Aqueous and ethanol extracts of A. chica attenuate the inflammatory and angiogenic components of the subcutaneous fibrovascular tissue induced by the synthetic matrix in mice. In addition, the ethanol extract from Arrabidaea chica and its fraction F1 presented in vitro antiproliferative activity and could be useful for developing potential chemopreventive substances.
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Affiliation(s)
| | - Marília Martins Melo
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Paula Peixoto Campos
- Instituto de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Maira Souza Oliveira
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Fabiano Aurélio Silva Oliveira
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Geovanni Dantas Cassali
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Vanny Perpétua Ferraz
- Instituto de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Betânia Barros Cota
- Laboratório de Química de Produtos Naturais, Centro de Pesquisas René Rachou-FIOCRUZ, Belo Horizonte, MG, Brazil
| | - Silvia Passos Andrade
- Instituto de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
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Marques SM, Castro PR, Campos PP, Viana CTR, Parreiras PM, Ferreira MAN, Andrade SP. Genetic strain differences in the development of peritoneal fibroproliferative processes in mice. Wound Repair Regen 2015; 22:381-9. [PMID: 24844337 DOI: 10.1111/wrr.12177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 02/28/2014] [Indexed: 12/17/2022]
Abstract
Fibroproliferative processes are regulated by a wide variety of tissue components and genetic factors. However, whether there are genetic differences in peritoneal fibroproliferative tissue formation, with consequent differences in response to drug treatment, is unclear. We characterize the influence of the genetic background on peritoneal fibroproliferative tissue induced by sponge implants in DBA/1, Swiss, C57BL/6, and BALB/c mouse strains. In addition, responses to dipyridamole in the implants were evaluated. Angiogenesis, assessed by intra-implant hemoglobin content, was highest in Swiss mice, whereas levels of vascular endothelial growth factor were highest in C57BL/6 mice. The levels of pro-inflammatory cytokines and of inflammatory enzymes (myeloperoxidase- and N-acetyl-β-D-glucosaminidase) were also strain-related. The pro-fibrogenic markers transforming growth factor beta-1 and collagen were lowest in implants placed in DBA/1 mice, whereas those in C57BL/6 mice had the highest levels. Differential sensitivity to dipyridamole was also observed, with this compound being pro-angiogenic in implants placed in DBA/1 mice but antiangiogenic in implants placed in Swiss. An overall anti-inflammatory response was observed in the inbred strains. Antifibrogenic effects were observed only in implants placed in C57BL/6 mice. These important strain-related differences in the development of peritoneal fibrosis and in response to dipyridamole must be considered in the design and analysis of studies on fibrogenesis in mice.
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Affiliation(s)
- Suzane M Marques
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, Brazil
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17
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Cassini-Vieira P, Deconte SR, Tomiosso TC, Campos PP, Montenegro CDF, Selistre-de-Araújo HS, Barcelos LS, Andrade SP, Araújo FDA. DisBa-01 inhibits angiogenesis, inflammation and fibrogenesis of sponge-induced-fibrovascular tissue in mice. Toxicon 2014; 92:81-9. [DOI: 10.1016/j.toxicon.2014.10.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 09/30/2014] [Accepted: 10/07/2014] [Indexed: 11/26/2022]
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18
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Socarrás TO, Vasconcelos AC, Campos PP, Pereira NB, Souza JPC, Andrade SP. Foreign body response to subcutaneous implants in diabetic rats. PLoS One 2014; 9:e110945. [PMID: 25372281 PMCID: PMC4220951 DOI: 10.1371/journal.pone.0110945] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 09/22/2014] [Indexed: 12/26/2022] Open
Abstract
Implantation of synthetic matrices and biomedical devices in diabetic individuals has become a common procedure to repair and/or replace biological tissues. However, an adverse foreign body reaction that invariably occurs adjacent to implant devices impairing their function is poorly characterized in the diabetic environment. We investigated the influence of this condition on the abnormal tissue healing response in implants placed subcutaneously in normoglycemic and streptozotocin-induced diabetes in rats. In polyether-polyurethane sponge discs removed 10 days after implantation, the components of the fibrovascular tissue (angiogenesis, inflammation, fibrogenesis, and apoptosis) were assessed. Intra-implant levels of hemoglobin and vascular endothelial growth factor were not different after diabetes when compared with normoglycemic counterparts. However, there were a lower number of vessels in the fibrovascular tissue from diabetic rats when compared with vessel numbers in implants from non-diabetic animals. Overall, the inflammatory parameters (neutrophil accumulation - myeloperoxidase activity, tumor necrosis factor alpha, and monocyte chemotactic protein-1 levels and mast cell counting) increased in subcutaneous implants after diabetes induction. However, macrophage activation (N-acetyl-β-D-glucosaminidase activity) was lower in implants from diabetic rats when compared with those from normoglycemic animals. All fibrogenic markers (transforming growth factor beta 1 levels, collagen deposition, fibrous capsule thickness, and foreign body giant cells) decreased after diabetes, whereas apoptosis (TUNEL) increased. Our results showing that hyperglycemia down regulates the main features of the foreign body reaction induced by subcutaneous implants in rats may be relevant in understanding biomaterial integration and performance in diabetes.
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Affiliation(s)
- Teresa Oviedo Socarrás
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- Department of Livestock Sciences, University of Córdoba, Montería, Córdoba, Colombia
| | - Anilton C. Vasconcelos
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Paula P. Campos
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- * E-mail:
| | - Nubia B. Pereira
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Jessica P. C. Souza
- Department of General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Silvia P. Andrade
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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19
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Castro PR, Marques SM, Viana CT, Campos PP, Ferreira MA, Barcelos LS, Andrade SP. Deletion of the chemokine receptor CCR2 attenuates foreign body reaction to implants in mice. Microvasc Res 2014; 95:37-45. [DOI: 10.1016/j.mvr.2014.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/01/2014] [Accepted: 07/03/2014] [Indexed: 01/08/2023]
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20
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Park MS, Kim YH, Jung Y, Kim SH, Park JC, Yoon DS, Kim SH, Lee JW. In Situ Recruitment of Human Bone Marrow-Derived Mesenchymal Stem Cells Using Chemokines for Articular Cartilage Regeneration. Cell Transplant 2014; 24:1067-83. [PMID: 24759682 DOI: 10.3727/096368914x681018] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Bone marrow-derived mesenchymal stem cells (BMSCs) are a good cell source for regeneration of cartilage as they can migrate directly to the site of cartilage injury and differentiate into articular chondrocytes. Articular cartilage defects do not heal completely due to the lack of chondrocytes or BMSCs at the site of injury. In this study, the chemotaxis of BMSCs toward chemokines, which may give rise to a complete regeneration of the articular cartilage, was investigated. CCR2, CCR4, CCR6, CXCR1, and CXCR2 were expressed in normal BMSCs and were increased significantly upon treatment with proinflammatory cytokines. BMSC migration was increased by MIP-3α and IL-8 more than by MCP-1 or SDF-1α. IL-8 and MIP-3α significantly enhanced the chemotaxis of BMSCs compared with MCP-1, SDF-1α, or PBS. Human BMSC recruitment to transplanted scaffolds containing either IL-8 or MIP-3α significantly increased in vivo compared to scaffolds containing PBS. Furthermore, IL-8- and MIP-3α-containing scaffolds enhanced tissue regeneration of an osteochondral defect site in beagle knee articular cartilage. Therefore, this study suggests that IL-8 and MIP-3α are the candidates that induce the regeneration of damaged articular cartilage.
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Affiliation(s)
- Min Sung Park
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, South Korea
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21
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Oviedo-Socarrás T, Vasconcelos AC, Barbosa IX, Pereira NB, Campos PP, Andrade SP. Diabetes alters inflammation, angiogenesis, and fibrogenesis in intraperitoneal implants in rats. Microvasc Res 2014; 93:23-9. [PMID: 24594441 DOI: 10.1016/j.mvr.2014.02.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/23/2014] [Accepted: 02/25/2014] [Indexed: 11/29/2022]
Abstract
The increased prevalence of diabetes worldwide is associated with increasing numbers of diabetic individuals receiving synthetic matrices and biomedical implants to repair and/or replace biological tissues. This therapeutic procedure invariably leads to adverse tissue healing (foreign body reaction), thus impairing the biomedical device function of subcutaneous implants. However, the influence of diabetes on abnormal tissue healing in intraperitoneal implants is unclear. We investigated key components of foreign body reactions in diabetic rats. Polyether-polyurethane sponge discs were placed intraperitoneally in rats previously injected with streptozotocin for induction of diabetes and in non-diabetic rats. Implants removed 10 days after implantation were assessed by determining the components of the fibrovascular tissue (angiogenesis, inflammation, and fibrogenesis). In implants from diabetic rats, fibrous capsule thickness and fibrovascular tissue infiltration (hematoxylin & eosin and picrosirius staining) were reduced in comparison with implants from non-diabetic rats. Hemoglobin (Hb) content (vascular index) and VEGF levels (pro-angiogenic cytokine) were increased after diabetes. However, the number of vessels (H&E and CD31-immunostaining) in the fibrovascular tissue from diabetic rats was decreased when compared with vessel numbers in implants from non-diabetic animals. Overall, all inflammatory parameters (macrophage accumulation-NAG activity; TNF-α and MCP-1 levels) increased in intraperitoneal implants after diabetes induction. The pro-fibrogenic cytokine (TGFβ-1) increased after diabetes, but collagen deposition remained unaltered in the implants from diabetic rats. These important diabetes-related changes (increased levels of pro-inflammatory and angiogenic and fibrogenic cytokines) in peritoneal implant healing provide an insight into the mechanisms of the foreign body response in the diabetic environment in rats.
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Affiliation(s)
- Teresa Oviedo-Socarrás
- Department of General Pathology - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil; University of Córdoba, Montería, Córdoba, Colombia
| | - Anilton C Vasconcelos
- Department of General Pathology - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Irma X Barbosa
- Department of General Pathology - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil; University of Tolima, Ibagué, Tolima, Colombia
| | - Nubia B Pereira
- Department of General Pathology - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Paula P Campos
- Department of General Pathology - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Brazil
| | - Silvia P Andrade
- Department of Physiology and Biophysics - Institute of Biological Sciences, Federal University of Minas Gerais (UFMG), Belo Horizonte, Minas Gerais, Av. Antônio Carlos, 6627 - Pampulha, CEP 31270-901, Brazil.
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22
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Camel urine inhibits inflammatory angiogenesis in murine sponge implant angiogenesis model. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.biomag.2013.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Alhaider AA, Abdel Gader AGM, Almeshaal N, Saraswati S. Camel milk inhibits inflammatory angiogenesis via downregulation of proangiogenic and proinflammatory cytokines in mice. APMIS 2013; 122:599-607. [PMID: 24320686 DOI: 10.1111/apm.12199] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Accepted: 08/26/2013] [Indexed: 11/27/2022]
Abstract
Camel milk has traditionally been used to treat cancer, but this practice awaits scientific scrutiny, in particular its role in tumor angiogenesis, the key step involved in tumor growth and metastasis. We aimed to investigate the effects of camel milk on key components of inflammatory angiogenesis in sponge implant angiogenesis model. Polyester-polyurethane sponges, used as a framework for fibrovascular tissue growth, were implanted in Swiss albino mice and camel milk (25, 50 and 100 mg/kg/day) was administered for 14 days through installed cannula. The implants collected at day 14 post-implantation were processed for the assessment of hemoglobin (Hb), myeloperoxidase (MPO), N-acetylglucosaminidase (NAG), and collagen, which were used as indices for angiogenesis, neutrophil, and macrophage accumulation and extracellular matrix deposition, respectively. Relevant inflammatory, angiogenic, and fibrogenic cytokines were also determined. Camel milk treatment attenuated the main components of the fibrovascular tissue, wet weight, vascularization (Hb content), macrophage recruitment (NAG activity), collagen deposition and the levels of vascular endothelial growth factor (VEGF), interleukin (IL)-1β, IL-6, IL-17, tumor necrosis factor-α, and transforming growth factor-β. A regulatory function of camel milk on multiple parameters of the main components of inflammatory angiogenesis has been revealed, giving insight into the potential therapeutic benefit underlying the anti-cancer actions of camel milk.
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Affiliation(s)
- Abdulqader A Alhaider
- Department of Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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Hazekawa M, Morihata K, Yoshida M, Sakai Y, Uchida T. The angiogenic effect of ONO-1301, a novel long-acting prostacyclin agonist loaded in PLGA microspheres prepared using different molecular weights of PLGA, in a murine sponge model. Drug Dev Ind Pharm 2013; 40:1435-42. [DOI: 10.3109/03639045.2013.828220] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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The formation of an organic coat and the release of corrosion microparticles from metallic magnesium implants. Acta Biomater 2013; 9:7580-9. [PMID: 23518475 DOI: 10.1016/j.actbio.2013.03.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 02/07/2013] [Accepted: 03/01/2013] [Indexed: 12/31/2022]
Abstract
Magnesium alloys have been proposed as prospective degradable implant materials. To elucidate the complex interactions between the corroding implants and the tissue, magnesium implants were analyzed in a mouse model and the response was compared to that induced by Ti and by the resorbable polymer polyglactin, respectively. One month after implantation, distinct traces of corrosion were apparent but the magnesium implants were still intact, whereas resorbable polymeric wound suture implants were already fragmented. Analysis of magnesium implants 2weeks after implantation by energy-dispersive X-ray spectroscopy indicated that magnesium, oxygen, calcium and phosphate were present at the implant surface. One month after implantation, the element composition of the outermost layer of the implant was indicative of tissue without detectable levels of magnesium, indicating a protective barrier function of this organic layer. In agreement with this notion, gene expression patterns in the surrounding tissue were highly similar for all implant materials investigated. However, high-resolution imaging using energy-filtered transmission electron microscopy revealed magnesium-containing microparticles in the tissue in the proximity of the implant. The release of such corrosion particles may contribute to the accumulation of calcium phosphate in the nearby tissue and to bone conductive activities of magnesium implants.
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Saraswati S, Agarwal SS. Strychnine inhibits inflammatory angiogenesis in mice via down regulation of VEGF, TNF-α and TGF-β. Microvasc Res 2013; 87:7-13. [PMID: 23395890 DOI: 10.1016/j.mvr.2013.01.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/06/2013] [Accepted: 01/29/2013] [Indexed: 01/11/2023]
Abstract
Strychnine is known to possess anti-inflammatory and antitumour activity, but its roles in tumour angiogenesis, the key step involved in tumour growth and metastasis, and the involved molecular mechanism are still unknown. We aimed to investigate the effects of strychnine on key components of inflammatory angiogenesis in the murine cannulated sponge implant angiogenesis model. Polyester-polyurethane sponges, used as a framework for fibrovascular tissue growth, were implanted in Swiss albino mice and strychnine (0.25, and 0.5 mg/kg/day) was given through installed cannulas for 9 days. The implants collected at day 9 postimplantation were processed for the assessment of haemoglobin (Hb), myeloperoxidase (MPO), N-acetylglucosaminidase (NAG) and collagen used as indexes for angiogenesis, neutrophil and macrophage accumulation and extracellular matrix deposition, respectively. Relevant inflammatory, angiogenic and fibrogenic cytokines were also determined. Strychnine treatment attenuated the main components of the fibrovascular tissue, wet weight, vascularization (Hb content), macrophage recruitment (NAG activity), collagen deposition and the levels of vascular endothelial growth factor (VEGF), tumour necrosis factor (TNF)-α and transforming growth factor (TGF-β). A regulatory function of strychnine on multiple parameters of main components of inflammatory angiogenesis has been revealed giving insight into the potential therapeutic underlying the actions of strychnine.
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Affiliation(s)
- Sarita Saraswati
- Genome Research Laboratory, Delhi Institute of Pharmaceutical Sciences and Research, New Delhi, India.
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Sampaio FP, Castro PR, Marques SM, Campos PP, Ferreira MAND, Andrade SP. Genetic background determines inflammatory angiogenesis response to dipyridamole in mice. Exp Biol Med (Maywood) 2012; 237:1084-92. [DOI: 10.1258/ebm.2012.012066] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Inflammation and angiogenesis, key components of fibrovascular tissue growth, exhibit considerable variability among species and strains. We investigated whether the response of inbred and outbred mice strains to dipyridamole (DP) on these processes would present similar variability. The effects of the drug on blood vessel formation, inflammatory cell recruitment, collagen deposition and cytokine production were determined on the fibroproliferative tissue induced by sponge implants in Swiss and Balb/c mice. Angiogenesis as assessed by hemoglobin (Hb) and vascular endothelial growth factor (VEGF) concentrations differed between the strains. Swiss implants had the highest Hb content but the lowest VEGF concentrations. Systemic DP treatment exerted an antiangiogenic effect on Balb/c implants but an proangiogenic effect on Swiss implants. The inflammatory enzyme activities myeloperoxidase (six-fold higher in Balb/c implants) and N-acetyl- β-d-glucosaminidase were reduced by the treatment in Balb/c implants only. Nitrite concentrations were also higher in Balb/c implants by 40% after DP treatment. Tumor necrosis factor-alpha levels were similar in the implants of both strains and were not reduced by DP. Transforming growth factor β-1 levels and collagen deposition also varied between the strains. The inbred strain had similar levels of the cytokine but implants of Swiss mice presented more collagen. DP treatment reduced collagen deposition in Balb/c implants only. Our data showing the influence of the genetic background on marked heterogeneity of inflammatory angiogenesis components and differential sensitivity to DP may provide some answers to clinical evidence for resistance to angiogenic therapy.
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Affiliation(s)
| | | | | | - Paula Peixoto Campos
- General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627-Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte/MG, Brazil
| | - Mônica Alves Neves Diniz Ferreira
- General Pathology, Institute of Biological Sciences, Federal University of Minas Gerais, Av. Antônio Carlos 6627-Campus Pampulha, Cx Post 468, CEP 31270-901, Belo Horizonte/MG, Brazil
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Pereira NB, Campos PP, de Jesus Oviedo Socarrás T, Pimenta TS, Parreiras PM, Silva SS, Kalapothakis E, Andrade SP, Moro L. Sponge implant in Swiss mice as a model for studying loxoscelism. Toxicon 2012; 59:672-9. [DOI: 10.1016/j.toxicon.2012.02.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 02/07/2012] [Accepted: 02/21/2012] [Indexed: 11/28/2022]
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Pinto FCH, Da Silva-Cunha Junior A, Oréfice RL, Ayres E, Andrade SP, Lima LDC, Moura SAL, Da Silva GR. Controlled release of triamcinolone acetonide from polyurethane implantable devices: application for inhibition of inflammatory-angiogenesis. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:1431-1445. [PMID: 22466817 DOI: 10.1007/s10856-012-4615-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 03/08/2012] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to develop triamcinolone acetonide-loaded polyurethane implants (TA PU implants) for the local treatment of different pathologies including arthritis, ocular and neuroinflammatory disorders. The TA PU implants were characterized by FTIR, SAXS and WAXS. The in vitro and in vivo release of TA from the PU implants was evaluated. The efficacy of TA PU implants in suppressing inflammatory-angiogenesis in a murine sponge model was demonstrated. FTIR results revealed no chemical interactions between polymer and drug. SAXS results indicated that the incorporation of the drug did not disturb the polymer morphology. WAXS showed that the crystalline nature of the TA was preserved after incorporation into the PU. The TA released from the PU implants efficiently inhibited the inflammatory-angiogenesis induced by sponge discs in an experimental animal model. Finally, TA PU implants could be used as local drug delivery systems because of their controlled delivery of TA.
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Affiliation(s)
- Flávia Carmo Horta Pinto
- School of Pharmacy, Federal University of São João Del Rei, Chanadour, Divinópolis, Minas Gerais, Brazil
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Marques SM, Campos PP, Castro PR, Cardoso CC, Ferreira MA, Andrade SP. Genetic background determines mouse strain differences in inflammatory angiogenesis. Microvasc Res 2011; 82:246-52. [DOI: 10.1016/j.mvr.2011.08.011] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Revised: 08/05/2011] [Accepted: 08/25/2011] [Indexed: 11/27/2022]
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Saraswati S, Pandey M, Mathur R, Agrawal SS. Boswellic acid inhibits inflammatory angiogenesis in a murine sponge model. Microvasc Res 2011; 82:263-8. [PMID: 21864545 DOI: 10.1016/j.mvr.2011.08.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2011] [Revised: 07/18/2011] [Accepted: 08/05/2011] [Indexed: 10/17/2022]
Abstract
The aim of the present study was to investigate the effects of boswellic acid (BA) on key components of inflammatory angiogenesis in the murine cannulated sponge implant angiogenesis model. Polyester-polyurethane sponges, used as a framework for fibrovascular tissue growth, were implanted in Swiss albino mice and BA (12.5 or 25mg/kg/day) was given through installed cannulas for nine days. The implants collected at day 9 post-implantation were processed for the assessment of hemoglobin (Hb). Relevant levels of inflammatory, angiogenic and fibrogenic cytokines were also determined. BA treatment resulted in significant decrease in sponge vascularization (Hb content) and in vascular endothelial growth factor (VEGF) and transforming growth factor (TGF-β1) at both doses. Further, BA decreased expression of VEGF and CD31 and reduced % microvessel density (MVD) in sponge implants. A regulatory function of BA on multiple parameters of the main components of inflammatory angiogenesis has been revealed giving an insight into the potential therapeutic use underlying the actions of BA.
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Affiliation(s)
- Sarita Saraswati
- Genome Research Laboratory, Delhi Institute of Pharmaceutical Sciences and Research, Pushp Vihar Sec-3, M B Road, New Delhi-110017, India.
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Moura SA, Lima LDC, Andrade SP, Silva-Cunha Junior AD, Órefice RL, Ayres E, Da Silva GR. Local Drug Delivery System: Inhibition of Inflammatory Angiogenesis in a Murine Sponge Model by Dexamethasone-Loaded Polyurethane Implants. J Pharm Sci 2011; 100:2886-95. [DOI: 10.1002/jps.22497] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 10/25/2010] [Accepted: 01/03/2011] [Indexed: 11/07/2022]
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Brucine, a plant derived alkaloid inhibits inflammatory angiogenesis in a murine sponge model. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.bionut.2011.06.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bellé LP, Bitencourt PER, Bona KS, Zanette RA, Moresco RN, Moretto MB. Expression of CD26 and its Association with Dipeptidyl Peptidase IV Activity in Lymphocytes of Type 2 Diabetes Patients. Cell Biochem Biophys 2011; 61:297-302. [DOI: 10.1007/s12013-011-9212-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Xavier DO, Amaral LS, Gomes MA, Rocha MA, Campos PR, Cota BDCV, Tafuri LSA, Paiva AMR, Silva JH, Andrade SP, Belo AV. Metformin inhibits inflammatory angiogenesis in a murine sponge model. Biomed Pharmacother 2009; 64:220-5. [PMID: 20053525 DOI: 10.1016/j.biopha.2009.08.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2009] [Accepted: 08/24/2009] [Indexed: 12/16/2022] Open
Abstract
To investigate the effects of metformin on angiogenesis, on inflammatory cell accumulation and on production of endogenous cytokines in sponge implant in mice. Polyester-polyurethane sponges were implanted in Swiss mice and metformin (40 or 400mg/kg/day) was given orally for six days. The implants collected at day 7 postimplantation were processed for the assessment of hemoglobin (Hb), myeloperoxidase (MPO), N-acetylglucosaminidase (NAG) e collagen used as indexes for angiogenesis, neutrophil and macrophage accumulation and extracellular matrix deposition, respectively. Relevant inflammatory, angiogenic and fibrogenic cytokines were also determined. Metformin treatment attenuated the main components of the fibrovascular tissue, wet weight, vascularization (Hb content), macrophage recruitment (NAG activity), collagen deposition and the levels of transforming growth factor (TGF-beta1) intraimplant. A regulatory function of metformin on multiple parameters of main components of inflammatory angiogenesis has been revealed giving insight into the potential therapeutic underlying the actions of metformin.
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Affiliation(s)
- D O Xavier
- FUMEC University, Physiology, Rua da Paisagem 240, Bairro Vila da Serra, Nova Lima, Minas Gerais, Brazil
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Araújo FA, Rocha MA, Mendes JB, Andrade SP. Atorvastatin inhibits inflammatory angiogenesis in mice through down regulation of VEGF, TNF-alpha and TGF-beta1. Biomed Pharmacother 2009; 64:29-34. [PMID: 19811885 DOI: 10.1016/j.biopha.2009.03.003] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2009] [Accepted: 03/24/2009] [Indexed: 10/20/2022] Open
Abstract
While compelling evidence indicates beneficial effects of statins on inflammatory processes, besides their cholesterol-lowering activities, the actions on angiogenesis are less clear-cut. Our aim was to investigate the effects of atorvastatin on key components of inflammatory angiogenesis in the murine sponge model. Polyester-polyurethane sponges, used as a framework for fibrovascular tissue growth, were implanted in Swiss mice. Atorvastatin (0.6, 3 mg/kg/day) was given orally for 8 days in drinking water. The implants collected at day 9 postimplantation were processed for the assessment of hemoglobin, myeloperoxidase (MPO), N-acetylglucosaminidase (NAG) and collagen. Relevant inflammatory, angiogenic and fibrogenic cytokines were also determined. Atorvastatin treatment resulted in significant decrease in sponge vascularization (Hb content) and in VEGF levels at both doses. Neutrophil influx (MPO activity) was not affected by the compound whereas macrophage recruitment (NAG activity) was inhibited, suggesting a degree of selectivity by atorvastatin for this cell population. The level of CCL2 (MCP1-JE) was decreased only with 0.6 mg/kg. Atorvastatin was also able to reduce collagen deposition and the levels of transforming growth factor (TGF-beta1) intraimplant, dose-dependently. The inhibitory function of atorvastatin on multiple parameters of main components of inflammatory angiogenesis revealed in this study is clearly associated with the modulatory effects of HMG-CoA reductase on VEGF, TNF-alpha and TGF-beta1 production.
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Affiliation(s)
- F A Araújo
- Department of Physiology and Biophysics, Institute of Biological Sciences, Federal University of Minas Gerais-UFMG, Avenida Antônio Carlos, 6627, Cep: 31.270-901 Belo Horizonte, Brazil
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Differential effects of rolipram on chronic subcutaneous inflammatory angiogenesis and on peritoneal adhesion in mice. Microvasc Res 2009; 78:265-71. [PMID: 19732781 DOI: 10.1016/j.mvr.2009.08.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Revised: 08/12/2009] [Accepted: 08/19/2009] [Indexed: 11/23/2022]
Abstract
The specific PDE4 inhibitor (rolipram) has been shown to attenuate excessive accumulation/activation of inflammatory cells and fibroblasts and cytokine production in several pathological conditions through cyclic nucleotide modulation. Here, using the murine sponge model to induce chronic subcutaneous inflammatory response and to elicit the formation of intraperitoneal adhesions we explored the hypothesis that rolipram would exert beneficial effects on decreasing key components of both processes (inflammatory cell recruitment, angiogenesis, and deposition of extracellular matrix component). Two doses of rolipram (0.2 or 2 mg/kg/day) were administered orally for 7 days in groups of mice bearing either subcutaneous or intraperitoneal polyether-polyurethane implants. Rolipram was effective in inhibiting angiogenesis as assessed by hemoglobin content and VEGF levels in subcutaneous implants (about 40% with both doses) but failed to exert this activity in intraperitoneal implants. Conversely, accumulation of neutrophils and macrophages determined by measuring myeloperoxidase (MPO) and N-acetylglucosaminidase (NAG) activities intraimplant, respectively, was attenuated only in intraperitoneal implants by the treatment. Levels of TNF-alpha and MCP-1 were also determined and rolipram at both doses decreased the production of both cytokines in intraperitoneal implants. The levels of MCP-1 in the subcutaneous implants were not affected by the treatment. Fibrosis was evaluated by determining the amount of collagen and production of TGF-beta1 intraimplant. Both parameters were attenuated by rolipram. These results have shown differential sensitivity of proliferating tissues to PDE4 inhibitor indicating that this agent may be used to target inflammatory angiogenesis selectively.
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Role of the chemokines CCL3/MIP-1 alpha and CCL5/RANTES in sponge-induced inflammatory angiogenesis in mice. Microvasc Res 2009; 78:148-54. [PMID: 19427874 DOI: 10.1016/j.mvr.2009.04.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 04/15/2009] [Accepted: 04/21/2009] [Indexed: 02/08/2023]
Abstract
OBJECTIVE We examined the potential contribution of CCL3 and CCL5 to inflammatory angiogenesis in mice. METHODS Polyester-polyurethane sponges were implanted in mice and blood vessel counting and hemoglobin, myeloperoxidase and N-acetylglucosaminidase measurements used as indexes for vascularization, neutrophil and macrophage accumulation, respectively. RESULTS CCL3 and CCL5 were expressed throughout the observation period. Exogenous CCL3 enhanced angiogenesis in WT, but angiogenesis proceeded normally in CCL3(-/-) mice, suggesting that endogenous CCL3 is not critical for sponge-induced angiogenesis in mice. CCL5 expression was detected at day 1, but levels significantly increased thereafter. Exogenous CCL5 reduced angiogenesis in WT mice possible via CCR5 as CCL5 was without an effect in CCR5(-/-) mice. Treatment of WT with the CCR1/CCR5 antagonist, Met-RANTES, prevented neutrophil and macrophage accumulation, but enhanced sponge vascularization. CONCLUSION Thus, endogenous CCL3 appears not to play a role in driving sponge-induced inflammatory angiogenesis in mice. The effects of CCL5 were anti-angiogenic and appeared to be mediated via activation of CCR5.
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Cilostazol and pentoxifylline decrease angiogenesis, inflammation, and fibrosis in sponge-induced intraperitoneal adhesion in mice. Life Sci 2009; 84:537-43. [DOI: 10.1016/j.lfs.2009.01.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2008] [Revised: 01/09/2009] [Accepted: 01/28/2009] [Indexed: 11/21/2022]
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