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Dutra FA, Francisco CS, Carneiro Pires B, Borges MM, Torres ALH, Resende VA, Mateus MF, Cipriano DF, Miguez FB, Freitas JCC, Teixeira J, Borges WDS, Guimarães L, da Cunha EF, Ramalho TDC, Nascimento CS, De Sousa FB, Costa RA, Lacerda V, Borges KB. Coumarin/β-Cyclodextrin Inclusion Complexes Promote Acceleration and Improvement of Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30900-30914. [PMID: 38848495 PMCID: PMC11194811 DOI: 10.1021/acsami.4c05069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/28/2024] [Accepted: 05/28/2024] [Indexed: 06/09/2024]
Abstract
Coumarins have great pharmacotherapeutic potential, presenting several biological and pharmaceutical applications, like antibiotic, fungicidal, anti-inflammatory, anticancer, anti-HIV, and healing activities, among others. These molecules are practically insoluble in water, and for biological applications, it became necessary to complex them with cyclodextrins (CDs), which influence their bioavailability in the target organism. In this work, we studied two coumarins, and it was possible to conclude that there were structural differences between 4,7-dimethyl-2H-chromen-2-one (DMC) and 7-methoxy-4-methyl-2H-chromen-2-one (MMC)/β-CD that were solubilized in ethanol, frozen, and lyophilized (FL) and the mechanical mixtures (MM). In addition, the inclusion complex formation improved the solubility of DMC and MMC in an aqueous medium. According to the data, the inclusion complexes were formed and are more stable at a molar ratio of 2:1 coumarin/β-CD, and hydrogen bonds along with π-π stacking interactions are responsible for the better stability, especially for (MMC)2@β-CD. In vivo wound healing studies in mice showed faster re-epithelialization and the best deposition of collagen with the (DMC)2@β-CD (FL) and (MMC)2@β-CD (FL) inclusion complexes, demonstrating clearly that they have potential in wound repair. Therefore, (DMC)2@β-CD (FL) deserves great attention because it presented excellent results, reducing the granulation tissue and mast cell density and improving collagen remodeling. Finally, the protein binding studies suggested that the anti-inflammatory activities might exert their biological function through the inhibition of MEK, providing the possibility of development of new MEK inhibitors.
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Affiliation(s)
- Flávia
Viana Avelar Dutra
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Carla Santana Francisco
- Departamento
de Química, Universidade Federal
do Espírito Santo, Centro de Ciências Exatas, Avenida Fernando Ferrari, S/N, Goiabeiras, 29060-900 Vitoria, Espírito Santo, Brazil
| | - Bruna Carneiro Pires
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Marcella Matos
Cordeiro Borges
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Ana Luiza Horta Torres
- Departamento
de Medicina, Universidade Federal de São
João del-Rei, Campus Dom Bosco, Praça Dom Helvécio 74, Fábricas, 36301-160 São João
del-Rei, Minas Gerais, Brazil
| | - Vivian Alexandra Resende
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Marcella Fernandes
Mano Mateus
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Daniel Fernandes Cipriano
- Departamento
de Física, Universidade Federal do
Espírito Santo, Centro de Ciências Exatas, Avenida Fernando Ferrari, S/N, Goiabeiras, 29060-900 Vitoria, Espírito Santo, Brazil
| | - Flávio Bastos Miguez
- Instituto
de Física e Química, Universidade
Federal de Itajubá, 37500-903 Itajubá, Minas Gerais, Brazil
| | - Jair Carlos Checon
de Freitas
- Departamento
de Física, Universidade Federal do
Espírito Santo, Centro de Ciências Exatas, Avenida Fernando Ferrari, S/N, Goiabeiras, 29060-900 Vitoria, Espírito Santo, Brazil
| | - Jéssika
Poliana Teixeira
- Departamento
de Química, Universidade Federal
de Lavras, Campus Universitário, 37200-900 Lavras, Minas Gerais, Brazil
| | - Warley de Souza Borges
- Departamento
de Química, Universidade Federal
do Espírito Santo, Centro de Ciências Exatas, Avenida Fernando Ferrari, S/N, Goiabeiras, 29060-900 Vitoria, Espírito Santo, Brazil
| | - Luciana Guimarães
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | | | - Teodorico de Castro Ramalho
- Departamento
de Química, Universidade Federal
de Lavras, Campus Universitário, 37200-900 Lavras, Minas Gerais, Brazil
| | - Clebio Soares Nascimento
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Frederico Barros De Sousa
- Instituto
de Física e Química, Universidade
Federal de Itajubá, 37500-903 Itajubá, Minas Gerais, Brazil
| | - Raquel Alves Costa
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
| | - Valdemar Lacerda
- Departamento
de Química, Universidade Federal
do Espírito Santo, Centro de Ciências Exatas, Avenida Fernando Ferrari, S/N, Goiabeiras, 29060-900 Vitoria, Espírito Santo, Brazil
| | - Keyller Bastos Borges
- Departamento
de Ciências Naturais, Universidade
Federal de São João del-Rei, Campus Dom Bosco, Praça Dom Helvécio
74, Fábricas, 36301-160 São João del-Rei, Minas Gerais, Brazil
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Costa BH, Rezende AK, Costa L, Neves GFM, Shimano AC, de Oliveira Penoni Á, Carvalho CR, Costa RA, de Alvarenga EC. Systemic effects of oral tolerance in bone healing. Sci Rep 2023; 13:6296. [PMID: 37072616 PMCID: PMC10113372 DOI: 10.1038/s41598-023-33591-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 04/15/2023] [Indexed: 05/03/2023] Open
Abstract
Bone fractures cause acute inflammation that, despite being important for initial repair, may delay the healing of the damaged bone. Parenteral injection of dietary protein has been shown to decrease inflammation and accelerate the repair of skin wounds and other inflammatory pathologies. Thus, our aim was to evaluate whether the intraperitoneal (i.p.) immunization with zein, an abundant protein in rodent chow, would favor bone healing. Wistar rats received i.p. immunization: saline (SG), adjuvant (AG) and zein associated with adjuvant (ZG). Then, a 2 mm of defect bone was performed on the right tibia, and on days 7, 14, 28 and 45 thereafter, analyses were performed. The results showed that the injection of zein reduced inflammation without impairing bone mineralization. Moreover, biomechanical tests demonstrated higher levels of maximum force (N) in ZG, indicating better mechanical resistance in relation to the others. The computerized tomography also indicated lower levels of medullary content in the ZG than in the SG, suggesting the absence of trabeculae in the medullary region in the ZG. These findings suggest that the injection of zein in previously tolerated animals may improve bone repair, leading to mechanically functional bone formation.
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Affiliation(s)
- Bruno Henrique Costa
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil
| | - Alisson Kennedy Rezende
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil
| | - Lais Costa
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil
| | - Gabrielle Fernanda Monteiro Neves
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil
| | - Antônio Carlos Shimano
- Departamento de Biomecânica, Medicina e Reabilitação do Aparelho Locomotor, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Álvaro de Oliveira Penoni
- Departamento das Ciências da Educação Física e Saúde, Universidade Federal de São João del-Rei, São João del Rei, Minas Gerais, 36301-360, Brazil
| | - Claudia Rocha Carvalho
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil
- Departamento Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Raquel Alves Costa
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil
| | - Erika Costa de Alvarenga
- Departamento de Ciências Naturais, Universidade Federal de São João Del Rei, Praça Dom Helvécio 74, São João del Rei, Minas Gerais, 36301-160, Brazil.
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Franco-Valencia K, Nóbrega I, Cantaruti T, Barra A, Klein A, Azevedo-Jr G, Costa R, Carvalho C. Subcutaneous injection of an immunologically tolerated protein up to 5 days before skin injuries improves wound healing. Braz J Med Biol Res 2022; 55:e11735. [PMID: 35170683 PMCID: PMC8851940 DOI: 10.1590/1414-431x2021e11735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/19/2021] [Indexed: 11/22/2022] Open
Abstract
Oral tolerance blocks the development of specific immune responses to proteins ingested by the oral route. One of the first registries of oral tolerance showed that guinea pigs fed corn became refractory to hypersensitivity to corn proteins. Mice fed with chow containing corn are tolerant to zein, and parenteral injection of zein plus adjuvant blocks immunization to unrelated proteins injected concomitantly and reduces unspecific inflammation. Extensive and prolonged inflammatory infiltrate in the wound bed is one of the causes of pathological wound healing. Previous research shows that intraperitoneal injection of zein concomitant with skin injuries reduces the inflammatory infiltrate in the wound bed and improves wound healing. Herein, we tested if one subcutaneous injection of zein before skin injury improves wound healing. We also investigated how long the effects triggered by zein could improve skin wound healing. Mice fed zein received two excisional wounds on the interscapular skin under anesthesia. Zein plus Al(OH)3 was injected at the tail base at 10 min, or 3, 5, or 7 days before skin injuries. Wound healing was analyzed at days 7 and 40 after injury. Our results showed that a zein injection up to 5 days before skin injury reduced the inflammatory infiltrate, increased the number of T-cells in the wound bed, and improved the pattern of collagen deposition in the neodermis. These findings could promote the development of new strategies for the treatment and prevention of pathological healing using proteins normally found in the common diet.
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Affiliation(s)
| | | | | | - A. Barra
- Universidade Federal de Minas Gerais, Brasil
| | - A. Klein
- Universidade Federal de Minas Gerais, Brasil
| | | | - R.A. Costa
- Universidade Federal de São João del Rei, Brasil
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Short WD, Wang X, Li H, Yu L, Kaul A, Calderon GA, Gilley J, Bollyky PL, Balaji S, Keswani SG. Interleukin-10 Producing T Lymphocytes Attenuate Dermal Scarring. Ann Surg 2021; 274:627-636. [PMID: 34506318 PMCID: PMC8428868 DOI: 10.1097/sla.0000000000004984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Demonstrate the impact of IL-10 producing T lymphocytes on mediating dermal scarring. SUMMARY BACKGROUND DATA We demonstrated that CD4+ cells are essential to improving postinjury wound healing and preventing fibrosis. CD4+ subsets secrete differential cytokine and growth factor profiles, though their role in fibrosis is not known. IL-10, a key anti-inflammatory cytokine shown to promote regenerative wound healing, is secreted by some CD4+ subsets. We, therefore, hypothesize that IL-10 producing CD4+ T lymphocyte subsets selectively attenuate dermal wound fibrosis. METHODS IL-10-/- and wild-type murine splenocytes were enriched for CD4+ lymphocytes and adoptively transferred into severe combined immunodeficient (SCID) mice that received full-thickness wounds which were analyzed at days 7 and 28 for inflammation and collagen content. We then sorted CD4+CD44int/lowFoxP3-CD62L+ T cells (Tnaive) or CD4+CD44HiFoxP3- type 1 regulatory (Tr1) T cell subsets from 10BiT murine splenocytes, activated them, and transferred them into wounds. In vitro, dermal fibroblasts were cocultured with Tnaive or Tr1 and the effect on extracellular matrix (ECM) regulation was analyzed. RESULTS The anti-inflammatory and antifibrotic effects of CD4+ cells on SCID wounds were lost with cells from IL-10-/- mice. Adoptive transfer of Tr1 into SCID mice resulted in accelerated wound closure at d7 with reduced fibrosis at d28, with Tr1 favoring hyaluronan production by fibroblasts, an ECM molecule implicated in IL-10-induced regenerative healing. CONCLUSIONS IL-10 producing T-lymphocytes, specifically Tr1, regulate inflammatory cell cytokine expression to promote HA-rich ECM deposition and attenuate fibrosis. Promoting IL-10 producing lymphocytes in wounds may be a therapeutic target to promote regenerative wound healing.
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Affiliation(s)
- Walker D Short
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Xinyi Wang
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Hui Li
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Ling Yu
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Aditya Kaul
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Gisele A Calderon
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Jamie Gilley
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Paul L Bollyky
- Department of Medicine, Division of Infectious Diseases, Stanford University School of Medicine, Stanford, California
| | - Swathi Balaji
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
| | - Sundeep G Keswani
- Department of Surgery, Division of Pediatric Surgery, Laboratory for Regenerative Tissue Repair, Texas Children's Hospital and Baylor College of Medicine, Houston, Texas
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Ying J, Luan W, Lu L, Zhang S, Qi F. Knockdown of the KINDLIN-2 Gene and Reduced Expression of Kindlin-2 Affects Vascular Permeability in Angiogenesis in a Mouse Model of Wound Healing. Med Sci Monit 2018; 24:5376-5383. [PMID: 30070977 PMCID: PMC6085983 DOI: 10.12659/msm.910059] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Background Angiogenesis is an important component of wound healing and tissue repair. Kindlin-2 is an integrin-associated protein, encoded by the KINDLIN-2 gene, which has been shown to affect cell adhesion and migration of cells, including endothelial cells. The aim of this study was to use a mouse model of wound healing to evaluate the effects of expression of KINDLIN-2 on angiogenesis in wound healing in vivo. Material/Methods Thirty-six male C57BL/6 mice were studied in an established model that used a wound created on the back. Mice were divided randomly into three groups: the normal group (n=12) received injections of normal (0.9%) saline; the KINDLIN-2(−) group (n=12) received injections of adeno-associated virus with small interfering (si)RNA targeting the KINDLIN-2 gene (AAV-KINDLIN-2-siRNA); and the control (group (n=12) received injections of adeno-associated virus containing a scrambled RNA sequence (AAV-control-RNA). Wound healing was analyzed by biochemical examination of the exudates and histology. Evans blue dye was injected into the caudal vein of each mouse, two weeks after wound healing to assess neovascular permeability. Results Wound healing was significantly delayed in the KINDLIN-2 gene knockdown mice (AAV-KINDLIN-2-siRNA) compared with that of the normal group and the control group, and neovascular permeability was increased. In the AAV-KINDLIN-2-siRNA group, blood vessels were shorter and thinner compared with the normal group and the control group. Conclusions In a mouse model of wound healing, KINDLIN-2 gene knockdown inhibited wound healing, and increased neovascular permeability in vivo.
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Affiliation(s)
- Jianghui Ying
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China (mainland)
| | - Wenjie Luan
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China (mainland)
| | - Lu Lu
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China (mainland)
| | - Simin Zhang
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China (mainland)
| | - Fazhi Qi
- Department of Plastic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China (mainland)
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Cantaruti TA, Costa RA, de Souza KS, Vaz NM, Carvalho CR. Indirect effects of immunological tolerance to a regular dietary protein reduce cutaneous scar formation. Immunology 2017; 151:314-323. [PMID: 28295241 DOI: 10.1111/imm.12732] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 02/15/2017] [Accepted: 03/06/2017] [Indexed: 12/20/2022] Open
Abstract
Oral tolerance refers to the specific inhibition of immune responsiveness to T-cell-dependent antigens contacted through the oral route before parenteral immunization. Oral tolerance to one protein does not inhibit immune responses to other unrelated proteins, but parenteral injection of tolerated antigens plus adjuvant into tolerant, but not normal, mice inhibits immune responses to antigens injected concomitantly or soon thereafter. The inhibitory effect triggered by parenteral injection of tolerated proteins is known as bystander suppression or indirect effects of oral tolerance. Intraperitoneal injection of ovalbumin (OVA) plus alum adjuvant in OVA-tolerant mice soon before skin injury inhibits inflammation and improves cutaneous wound healing. However, as OVA is not a regular component of mouse chow, we tested whether indirect effects could be triggered by zein, the main protein of corn that is regularly present in mouse chow. We show that intraperitoneal injection of a single dose (10 μg) of zein plus alum adjuvant soon before skin injury in mice reduces leucocyte infiltration but increase the number of T cells and the expression of resistin-like molecule-α (a marker of alternatively activated macrophages) in the wound bed, increases the expression of transforming growth factor-β3 in the newly formed epidermis and reduces cutaneous scar formation. These results suggest that indirect effects of oral tolerance triggered by parenteral injection of regular dietary components may be further explored as one alternative way to promote scarless wound healing.
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Affiliation(s)
| | | | - Kênia Soares de Souza
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Nelson Monteiro Vaz
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cláudia Rocha Carvalho
- Departamento de Morfologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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