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Kang SJ, Gu NY, Byeon JS, Hyun BH, Lee J, Yang DK. Immunomodulatory effects of canine mesenchymal stem cells in an experimental atopic dermatitis model. Front Vet Sci 2023; 10:1201382. [PMID: 37529178 PMCID: PMC10390254 DOI: 10.3389/fvets.2023.1201382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 06/27/2023] [Indexed: 08/03/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have the potential to differentiate into multi-lineage cells, suggesting their future applicability in regenerative medicine and biotechnology. The immunomodulatory properties of MSCs make them a promising replacement therapy in various fields of animal research including in canine atopic dermatitis (AD), a skin disease with 10-15% prevalence. We investigated the immunomodulatory effects of MSCs in an experimental canine AD model induced by Dermatophagoides farinae extract ointment. Canine adipose tissue-derived MSCs (cAT-MSCs) were differentiated into mesodermal cell lineages at the third passage. Alterations in immunomodulatory factors in control, AD, and MSC-treated AD groups were evaluated using flow cytometric analysis, enzyme-linked immunosorbent assay, and quantitative reverse transcription PCR. In the MSC-treated AD group, the number of eosinophils decreased, and the number of regulatory T cells (Tregs) increased compared to those in the AD group. In addition, the immunoglobulin E (IgE) and prostaglandin E2 levels were reduced in the MSC-treated AD group compared to those in the AD group. Furthermore, the filaggrin, vascular endothelial growth factor, and interleukin-5 gene expression levels were relatively higher in the MSC-treated AD group than in the AD group, however, not significantly. cAT-MSCs exerted immunomodulatory effects in an AD canine model via a rebalancing of type-1 and -2 T helper cells that correlated with increased levels of Tregs, IgE, and various cytokines.
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Affiliation(s)
- Seok-Jin Kang
- Viral Diseases Research Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
| | - Na-Yeon Gu
- Viral Diseases Research Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
| | - Jeong Su Byeon
- Viral Diseases Research Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
| | - Bang-Hun Hyun
- Viral Diseases Research Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
| | - Jienny Lee
- Division of Regenerative Medicine Safety Management, Department of Chronic Disease Convergence Research, Korea National Institute of Health, Korea Disease Control and Prevention Agency, Cheongju, Republic of Korea
| | - Dong-Kun Yang
- Viral Diseases Research Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
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Catalán D, Mansilla MA, Ferrier A, Soto L, Oleinika K, Aguillón JC, Aravena O. Immunosuppressive Mechanisms of Regulatory B Cells. Front Immunol 2021; 12:611795. [PMID: 33995344 PMCID: PMC8118522 DOI: 10.3389/fimmu.2021.611795] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/19/2021] [Indexed: 12/12/2022] Open
Abstract
Regulatory B cells (Bregs) is a term that encompasses all B cells that act to suppress immune responses. Bregs contribute to the maintenance of tolerance, limiting ongoing immune responses and reestablishing immune homeostasis. The important role of Bregs in restraining the pathology associated with exacerbated inflammatory responses in autoimmunity and graft rejection has been consistently demonstrated, while more recent studies have suggested a role for this population in other immune-related conditions, such as infections, allergy, cancer, and chronic metabolic diseases. Initial studies identified IL-10 as the hallmark of Breg function; nevertheless, the past decade has seen the discovery of other molecules utilized by human and murine B cells to regulate immune responses. This new arsenal includes other anti-inflammatory cytokines such IL-35 and TGF-β, as well as cell surface proteins like CD1d and PD-L1. In this review, we examine the main suppressive mechanisms employed by these novel Breg populations. We also discuss recent evidence that helps to unravel previously unknown aspects of the phenotype, development, activation, and function of IL-10-producing Bregs, incorporating an overview on those questions that remain obscure.
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Affiliation(s)
- Diego Catalán
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile.,Instituto Milenio en Inmunología e Inmunoterapia, Santiago, Chile
| | - Miguel Andrés Mansilla
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile
| | - Ashley Ferrier
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile.,Instituto Milenio en Inmunología e Inmunoterapia, Santiago, Chile
| | - Lilian Soto
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile.,Unidad de Dolor, Hospital Clínico, Universidad de Chile (HCUCH), Santiago, Chile
| | | | - Juan Carlos Aguillón
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile
| | - Octavio Aravena
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile
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Perrone Sibilia MD, Aldirico MDLÄ, Soto AS, Picchio MS, Sánchez VR, Arcón N, Moretta R, Martín V, Vanzulli S, Fenoy IM, Goldman A. Chronic infection with the protozoan Toxoplasma gondii prevents the development of experimental atopic dermatitis in mice. J Dermatol Sci 2019; 96:143-150. [PMID: 31735466 DOI: 10.1016/j.jdermsci.2019.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 10/04/2019] [Accepted: 10/27/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Supporting the hypothesis thatT. gondii infection protects against allergy in humans we previously demonstrated that this infection can modulate not only the susceptibility to develop respiratory allergies in mice but also suppresses allergic responses at systemic level. This latter finding suggests that T. gondii infection could prevent the onset of other allergic diseases, such as atopic dermatitis. At present, few studies have investigated the modulation of atopic dermatitis by parasite infections. OBJECTIVE Here, we sought to investigate whether chronic infection with T. gondii is capable of modulating the development of atopic dermatitis. METHODS Chronically infected mice were sensitized by repeated epicutaneous ovalbumin administration. Skin histopathology, humoral response, cytokine production and innate type-II lymphoid cells (ILC2) were assessed. RESULTS A marked reduction in epidermal thickness and dermal inflammatory infiltrate along with a reduction in mast cell count was observed in infected mice compared to non-infected mice. These results correlated with a diminished TH2 and TH1 allergen specific response. Reduced type-II IL-4 and IL-5 cytokines were already detected during the first 24 h of allergen sensitization in splenocytes and draining lymph nodes from infected mice. Moreover, this reduced type-II profile in chronically infected animals correlated with diminished ILC2 number in draining lymph nodes. CONCLUSION Chronic infection withT. gondii prevents the development of atopic dermatitis. The diminished susceptibility seems to result from changes in type-II innate immune response that may lead to the induction of a deficient TH2 response and consequently to a lower susceptibility to develop atopic dermatitis.
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Affiliation(s)
- Matías Damián Perrone Sibilia
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - María de Los Ängeles Aldirico
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Ariadna Soledad Soto
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Mariano Sergio Picchio
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Vanesa Roxana Sánchez
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Nadia Arcón
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Rosalía Moretta
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Valentina Martín
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Silvia Vanzulli
- Laboratorio de Anatomía Patológica, Instituto de Investigaciones Hematológicas, Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Ignacio Martín Fenoy
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina
| | - Alejandra Goldman
- Universidad Nacional de San Martín, CONICET, Laboratorio de Inmunología, Vacunas y Alergia, CESyMA, ECyT, San Martín, Argentina.
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Khalaf AA, Hassanen EI, Azouz RA, Zaki AR, Ibrahim MA, Farroh KY, Galal MK. Ameliorative Effect Of Zinc Oxide Nanoparticles Against Dermal Toxicity Induced By Lead Oxide In Rats. Int J Nanomedicine 2019; 14:7729-7741. [PMID: 31806958 PMCID: PMC6855620 DOI: 10.2147/ijn.s220572] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/03/2019] [Indexed: 12/21/2022] Open
Abstract
Background Recently, several studies demonstrate the possible role of zinc oxide (ZnO) in the protection of several skin diseases, but less is known about the role of ZnO nanoparticles in the inflammatory skin disease. So, this study was designed to confirm the pivotal role of the nano zinc oxide cream in the alleviation of lead oxide (PbO) induced-allergic dermatitis in rats. Materials and methods Two concentrations (1% and 6%) of ZnONPs creams were prepared and characterized prior to being used in the study. A total number of 30 male Wistar rats were randomly divided into six groups. Group 1 (negative control), groups 2&3 (either 1% or 6% ZnONPs control groups), group 4 (PbO), groups 5&6 (co-treatment of each ZnONPs concentration+PbO). All rats in different groups were observed daily to determine the severity of dermal gross lesions. Histopathological studies, mRNA analysis, and oxidative stress evaluations were performed on the affected skin tissue. Immunohistochemical studies were performed to evaluate the expression of cluster of differentiation CD4, CD8 and intercellular adhesion molecules ICAM-1 in different groups. Results PbO caused extensive skin oxidative damage manifested by a significant increase in MDA level with a decrease in GSH content and CAT activity. The results of histopathological and immunohistochemical examinations revealed that topical application of PbO for 14 days led to severe allergic dermatitis with remarkable elevations in the number of CD4+ T-helper, CD8+ T-cytotoxic lymphocytes, and ICAM-1 expression. On the other hand, noticeable improvements were recorded in all the previous toxicopathological parameters among the groups treated by either 1% or 6% ZnO-NPs cream. However, the best results were observed in the group treated with 1% ZnO-NPs cream. Conclusion Our findings suggest that 1% of ZnO-NPs cream is safe when applied topically on the inflamed skin. Moreover, it had anti-inflammatory and antioxidant effects so that, it is recommended to use the 1% ZnO-NPs cream to avert the dermal toxicity-induced by PbO.
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Affiliation(s)
- A A Khalaf
- Department of Toxicology & Forensic Medicine, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Eman I Hassanen
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Rehab A Azouz
- Department of Toxicology & Forensic Medicine, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Amr R Zaki
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt
| | - Marwa A Ibrahim
- Department of Biochemistry, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Khaled Y Farroh
- Nanotechnology & Advanced Materials Central Lab, Agricultural Research Center, Giza, Egypt
| | - Mona K Galal
- Department of Biochemistry, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Ameliorative effects of green tea extract from tannase digests on house dust mite antigen-induced atopic dermatitis-like lesions in NC/Nga mice. Arch Dermatol Res 2019; 311:109-120. [PMID: 30617657 PMCID: PMC6394501 DOI: 10.1007/s00403-018-01886-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 12/06/2018] [Accepted: 12/17/2018] [Indexed: 11/04/2022]
Abstract
Atopic dermatitis (AD) is one of the most common chronic inflammatory skin diseases, which is affected by several factors. Anti-histamines, steroids, and immunosuppressive agents have been used for the treatment of AD. However, many studies have reported that long-term use and abuse of these drugs causes many side effects. This study was performed to evaluate the ameliorative effect of green tea extract on AD-like lesions in NC/Nga mice. Green tea extract from tannase digest (GTT), beta-hexosaminidase, and histamine were measured in IgE-antigen complex-stimulated RBL-2H3 cells. Dorsal skin application of house dust mite-ointment induced AD-like symptoms in NC/Nga mice. Dermatitis scores, skin moisture, transepidermal waterloss (TEWL), thickness of skin and ear, T-cell proliferation, levels of immunoglobulins and cytokines, and infiltration of mast cell were measured to assess the degree of AD induction. Skin moisture and TEWL were measured using probes, and ELISA was performed to measure the immunoglobulin and cytokine levels in blood. GTT was selected based on its ability to inhibit the release of beta-hexosaminidase and histamine in IgE-antigen complex-stimulated RBL-2H3 cells. Oral administration of GTT significantly suppressed the skin inflammation and symptoms of AD-like skin lesions in NC/Nga mice. GTT may have a potential therapeutic effect in the treatment of AD.
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de Andrade CM, Carneiro VL, Cerqueira JV, Fonseca HF, Queiroz GA, Costa RS, Alcantara-Neves NM, Cooper P, Figueiredo CA. Parasites and allergy: Observations from Brazil. Parasite Immunol 2018; 41:e12588. [PMID: 30188574 DOI: 10.1111/pim.12588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/24/2018] [Accepted: 09/04/2018] [Indexed: 11/29/2022]
Abstract
Brazil is a middle-income country undergoing the epidemiological transition. Effects of changes in daily life habits and access to clean water, sanitation and urban services on a growing urban population have contributed to a double burden of both infectious and noncommunicable chronic diseases. Studies have indicated that parasite infections may modulate the human immune system and influence the development of allergic conditions such as asthma. However, there is no consensus in the published literature on the effects of parasitic infections on allergy, perhaps as a consequence of factors determining the epidemiology of these infections that vary between populations such as age of first infection, duration and chronicity of infections, parasite burden and species, and host genetic susceptibility. In this review, we discuss the observations from Brazil concerning the relationship between parasite infections and allergy.
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Affiliation(s)
| | - Valdirene L Carneiro
- Departamento de Ciências da Vida, Universidade do Estado da Bahia, Salvador, Brazil
| | - Jéssica V Cerqueira
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Hellen F Fonseca
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Gerson A Queiroz
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | - Ryan S Costa
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
| | | | - Philip Cooper
- St. George's University of London, London, UK.,Facultad de Ciencias Medicas de la Salud y la Vida, Universidad Internacional del Ecuador, Quito, Ecuador
| | - Camila A Figueiredo
- Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Brazil
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Kim MH, Choi SJ, Choi HI, Choi JP, Park HK, Kim EK, Kim MJ, Moon BS, Min TK, Rho M, Cho YJ, Yang S, Kim YK, Kim YY, Pyun BY. Lactobacillus plantarum-derived Extracellular Vesicles Protect Atopic Dermatitis Induced by Staphylococcus aureus-derived Extracellular Vesicles. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2018; 10:516-532. [PMID: 30088371 PMCID: PMC6082821 DOI: 10.4168/aair.2018.10.5.516] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/29/2018] [Accepted: 04/03/2018] [Indexed: 12/16/2022]
Abstract
PURPOSE The microbial environment is an important factor that contributes to the pathogenesis of atopic dermatitis (AD). Recently, it was revealed that not only bacteria itself but also extracellular vesicles (EVs) secreted from bacteria affect the allergic inflammation process. However, almost all research carried out so far was related to local microorganisms, not the systemic microbial distribution. We aimed to compare the bacterial EV composition between AD patients and healthy subjects and to experimentally find out the beneficial effect of some bacterial EV composition. METHODS Twenty-seven AD patients and 6 healthy control subjects were enrolled. After urine and serum were obtained, EVs were prepared from samples. Metagenomic analysis of 16s ribosomal DNA extracted from the EVs was performed, and bacteria showing the greatest difference between controls and patients were identified. In vitro and in vivo therapeutic effects of significant bacterial EV were evaluated with keratinocytes and with Staphylococcus aureus-induced mouse AD models, respectively. RESULTS The proportions of Lactococcus, Leuconostoc and Lactobacillus EVs were significantly higher and those of Alicyclobacillus and Propionibacterium were lower in the control group than in the AD patient group. Therefore, lactic acid bacteria were considered to be important ones that contribute to the difference between the patient and control groups. In vitro, interleukin (IL)-6 from keratinocytes and macrophages decreased and cell viability was restored with Lactobacillus plantarum-derived EV treatment prior to S. aureus EV treatment. In S. aureus-induced mouse AD models, L. plantarum-derived EV administration reduced epidermal thickening and the IL-4 level. CONCLUSIONS We suggested the protective role of lactic acid bacteria in AD based on metagenomic analysis. Experimental findings further suggest that L. plantarum-derived EV could help prevent skin inflammation.
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Affiliation(s)
- Min Hye Kim
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea.
| | | | - Hyun Il Choi
- Department of Life Science, Division of Molecular and Life Sciences, Pohang University of Science and Technology, Pohang, Korea
| | - Jun Pyo Choi
- Asan Institute for Life Sciences, Asan Medical Center, Seoul, Korea
| | - Han Ki Park
- Department of Internal Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | | | - Min Jeong Kim
- CJ R&D Center, CJ CheilJedang Corporation, Suwon, Korea
| | | | - Taek Ki Min
- Pediatric Allergy and Respiratory Center, Department of Pediatrics, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Mina Rho
- Department of Computer Science and Engineering, Hanyang University, Seoul, Korea
| | - Young Joo Cho
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea
| | | | | | - You Young Kim
- Department of Internal Medicine, National Medical Center, Seoul, Korea
| | - Bok Yang Pyun
- Pediatric Allergy and Respiratory Center, Department of Pediatrics, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
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Tanaka M, Inoue KI, Shimada A, Takano H. Physiological effects of brominated flame retardants on NC/Nga mice. Immunopharmacol Immunotoxicol 2017; 40:1-5. [DOI: 10.1080/08923973.2017.1405440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Michitaka Tanaka
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | | | - Akinori Shimada
- Laboratory of Pathology, School of Life and Environmental Science, Azabu University, Sagamihara, Japan
| | - Hirohisa Takano
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
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Dimerized Translationally Controlled Tumor Protein-Binding Peptide Ameliorates Atopic Dermatitis in NC/Nga Mice. Int J Mol Sci 2017; 18:ijms18020256. [PMID: 28134765 PMCID: PMC5343792 DOI: 10.3390/ijms18020256] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/22/2016] [Accepted: 01/13/2017] [Indexed: 01/20/2023] Open
Abstract
Our previous study showed that dimerized translationally controlled tumor protein (dTCTP) plays a role in the pathogenesis of allergic diseases, such as asthma and allergic rhinitis. A 7-mer peptide, called dTCTP-binding peptide 2 (dTBP2), binds to dTCTP and inhibits its cytokine-like effects. We therefore examined the protective effects of dTBP2 in house dust mite-induced atopic dermatitis (AD)-like skin lesions in Nishiki-nezumi Cinnamon/Nagoya (NC/Nga) mice. We found that topical administration of dTBP2 significantly reduced the AD-like skin lesions formation and mast cell infiltration in NC/Nga mice, similarly to the response seen in the Protopic (tacrolimus)-treated group. Treatment with dTBP2 also decreased the serum levels of IgE and reduced IL-17A content in skin lesions and inhibited the expression of mRNAs of interleukin IL-4, IL-5, IL-6, IL-13, macrophage-derived chemokine (MDC), thymus and activation-regulated chemokine (TARC) and thymic stromal lymphopoietin (TSLP). These findings indicate that dTBP2 not only inhibits the release of Th2 cytokine but also suppresses the production of proinflammatory cytokines in AD-like skin lesions in NC/Nga mice, by inhibiting TCTP dimer, in allergic responses. Therefore, dTCTP is a therapeutic target for AD and dTBP2 appears to have a potential role in the treatment of AD.
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Sung YY, Yoon T, Jang S, Kim HK. Forsythia suspensa Suppresses House Dust Mite Extract-Induced Atopic Dermatitis in NC/Nga Mice. PLoS One 2016; 11:e0167687. [PMID: 27936051 PMCID: PMC5147941 DOI: 10.1371/journal.pone.0167687] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 10/21/2016] [Indexed: 01/21/2023] Open
Abstract
Forsythia suspensa (F. suspensa) is a traditional medicine for treatment of inflammation. In this study, we evaluated the therapeutic effects of an ethanol extract from F. suspensa fruits on atopic dermatitis both in vivo and in vitro. We investigated the inhibitory effects of F. suspensa extract on the development of atopic dermatitis-like skin lesions in an NC/Nga mouse model exposed to Dermatophagoides farinae crude extract. Topical application of F. suspensa extract to the mice attenuated the atopic dermatitis symptoms, including increased dermatitis severity score, ear thickness, infiltration of inflammatory cells in the skin lesions, serum levels of IgE, TNF-α, and histamine, and expression of chemokines, cytokines, and adhesion molecules in ear tissue. In addition, F. suspensa extract inhibited the production of chemokines in TNF-α/IFN-γ-activated human keratinocytes. High-performance liquid chromatography analysis of FSE revealed the presence of four chemical constituents (forsythiaside, phillyrin, pinoresinol, and phylligenin). These compounds inhibited the production of chemokines in TNF-α/IFN-γ-activated human keratinocytes. These results suggest that the F. suspensa might be a useful candidate for treating allergic skin inflammatory disorders.
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Affiliation(s)
- Yoon-Young Sung
- Mibyeong Research Center, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Taesook Yoon
- College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Republic of Korea
| | - Seol Jang
- Mibyeong Research Center, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Ho Kyoung Kim
- Mibyeong Research Center, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
- * E-mail:
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Pestechian N, Khanahmad Shahreza H, Faridnia R, Kalani H. Manipulation of IL-10 gene expression by Toxoplasma gondii and its products. Med J Islam Repub Iran 2016; 30:410. [PMID: 27683651 PMCID: PMC5038996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 05/25/2016] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND This study was designed to evaluate whether or not T. gondii and its derivatives can change the gene expression level of IL-10 in murine leukocytes in vivo. METHODS Fifty BALB/c mice were divided into 5 groups, four of which received the excretory/secretory product (ESP) from cell culture medium, the ESP from cell free medium, the Toxoplasma lysate product (TLP) and the active tachyzoites, respectively. The fifth group was considered as control and received PBS. The peritoneal leukocytes from the mice were collected. Their total RNA were extracted and converted to cDNA and the gene expression levels of IL-10 in the samples were evaluated by quantitative real time-PCR using the REST-2009 software. RESULTS The findings showed a decrease in the expression level of IL-10 in the TLP group (p=0.004). Moreover, the IL-10 gene expression level was upregulated in the group of the ESP from cell culture medium (p=0.04) and the active tachyzoite group (p=0.04). The expression of IL-10 gene in the group of ESP from cell-free medium was not significant compared to the control one (p=0.45). CONCLUSION T. gondii and its derivatives are able to increase (the active T. gondii tachyzoite and the ESP from cell culture medium) and decrease (the TLP) the gene expression level of IL-10 in a murine model. The question remains to be examined in further study about which molecules are involved in this process.
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Affiliation(s)
- Nader Pestechian
- 1 PhD, Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Hosein Khanahmad Shahreza
- 2 PhD, Department of Genetics, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Roghiyeh Faridnia
- 3 PhD, Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Sciences, Mazandaran, Iran.
| | - Hamed Kalani
- 4 PhD, Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran. ,(Corresponding author)PhD, Department of Parasitology and Mycology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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