1
|
Li F, Li B, Liu J, Wei X, Qiang T, Mu X, Wang Y, Qi Y, Zhang B, Liu H, Xiao P. Anti-asthmatic fraction screening and mechanisms prediction of Schisandrae Sphenantherae Fructus based on a combined approach. Front Pharmacol 2022; 13:902324. [PMID: 36172200 PMCID: PMC9511055 DOI: 10.3389/fphar.2022.902324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/17/2022] [Indexed: 12/02/2022] Open
Abstract
Objective: Schisandrae Sphenantherae Fructus (SSF) is a traditional Chinese medicine used to treat coughs and pulmonary inflammatory diseases. However, the pharmacodynamic material basis and mechanisms for SSF in asthma treatment remain unclear. This study aims to screen the anti-asthmatic fraction and verify the pharmacodynamic material basis, predict the potential mechanism, and verify the interaction ability between compounds and core targets. Methods: First, three fractions from SSF were compared in terms of composition, comparison, and anti-asthmatic effects. Then, the ultra-performance liquid chromatography-quadrupole/time-of-flight-mass spectrometry/mass spectrometry (UPLC-Q/TOF-MS/MS) strategy was used to identify the compounds from the active fraction, and the anti-asthmatic efficacy of the active fraction was further studied by the ovalbumin (OVA)-induced asthma murine model. Finally, network pharmacology and molecular methods were used to study the relationships between active compounds, core targets, and key pathways of PEF in asthma treatments. Results: The petroleum ether fraction (PEF) of SSF showed better effects and could significantly diminish lung inflammation and mitigate the level of serum immunoglobulin E (IgE), interleukin (IL)-4, IL-5, IL-6, IL-13, and IL-17 in mice. A total of 26 compounds from the PEF were identified, among which the main compounds are lignans and triterpenes. Moreover, 21 active compounds, 129 overlap-ping targets, and 10 pathways were screened by network pharmacology tools. The top five core targets may play a great role in asthma treatment. Gene Ontology (GO) analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis suggested that the PEF can treat asthma by acting on multiple asthma pathological processes, including the IL-17 signaling pathway, T helper (Th) 17 cell differentiation, and the calcium signaling pathway. Molecular docking was performed to evaluate the interactions of the protein–ligand binding, and most docked complexes had a good binding ability. Conclusion: The present results might contribute to exploring the active compounds with anti-asthmatic activity.
Collapse
Affiliation(s)
- Fan Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bin Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
| | - Jiushi Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
| | - Xueping Wei
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
| | - Tingyan Qiang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xinlu Mu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yumeng Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yaodong Qi
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
| | - Bengang Zhang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
| | - Haitao Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Haitao Liu,
| | - Peigen Xiao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Engineering Research Center of Traditional Chinese Medicine Resource, Peking Union Medical College, Institute of Medicinal Plant Development, Ministry of Education, Chinese Academy of Medical Sciences, Beijing, China
| |
Collapse
|
2
|
Strehl C, Ehlers L, Gaber T, Buttgereit F. Glucocorticoids-All-Rounders Tackling the Versatile Players of the Immune System. Front Immunol 2019; 10:1744. [PMID: 31396235 PMCID: PMC6667663 DOI: 10.3389/fimmu.2019.01744] [Citation(s) in RCA: 145] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 07/10/2019] [Indexed: 12/13/2022] Open
Abstract
Glucocorticoids regulate fundamental processes of the human body and control cellular functions such as cell metabolism, growth, differentiation, and apoptosis. Moreover, endogenous glucocorticoids link the endocrine and immune system and ensure the correct function of inflammatory events during tissue repair, regeneration, and pathogen elimination via genomic and rapid non-genomic pathways. Due to their strong immunosuppressive, anti-inflammatory and anti-allergic effects on immune cells, tissues and organs, glucocorticoids significantly improve the quality of life of many patients suffering from diseases caused by a dysregulated immune system. Despite the multitude and seriousness of glucocorticoid-related adverse events including diabetes mellitus, osteoporosis and infections, these agents remain indispensable, representing the most powerful, and cost-effective drugs in the treatment of a wide range of rheumatic diseases. These include rheumatoid arthritis, vasculitis, and connective tissue diseases, as well as many other pathological conditions of the immune system. Depending on the therapeutically affected cell type, glucocorticoid actions strongly vary among different diseases. While immune responses always represent complex reactions involving different cells and cellular processes, specific immune cell populations with key responsibilities driving the pathological mechanisms can be identified for certain autoimmune diseases. In this review, we will focus on the mechanisms of action of glucocorticoids on various leukocyte populations, exemplarily portraying different autoimmune diseases as heterogeneous targets of glucocorticoid actions: (i) Abnormalities in the innate immune response play a crucial role in the initiation and perpetuation of giant cell arteritis (GCA). (ii) Specific types of CD4+ T helper (Th) lymphocytes, namely Th1 and Th17 cells, represent important players in the establishment and course of rheumatoid arthritis (RA), whereas (iii) B cells have emerged as central players in systemic lupus erythematosus (SLE). (iv) Allergic reactions are mainly triggered by several different cytokines released by activated Th2 lymphocytes. Using these examples, we aim to illustrate the versatile modulating effects of glucocorticoids on the immune system. In contrast, in the treatment of lymphoproliferative disorders the pro-apoptotic action of glucocorticoids prevails, but their mechanisms differ depending on the type of cancer. Therefore, we will also give a brief insight into the current knowledge of the mode of glucocorticoid action in oncological treatment focusing on leukemia.
Collapse
Affiliation(s)
- Cindy Strehl
- Department of Rheumatology and Clinical Immunology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- German Rheumatism Research Centre (DRFZ) Berlin, Berlin, Germany
| | - Lisa Ehlers
- Department of Rheumatology and Clinical Immunology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- German Rheumatism Research Centre (DRFZ) Berlin, Berlin, Germany
| | - Timo Gaber
- Department of Rheumatology and Clinical Immunology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- German Rheumatism Research Centre (DRFZ) Berlin, Berlin, Germany
| | - Frank Buttgereit
- Department of Rheumatology and Clinical Immunology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- German Rheumatism Research Centre (DRFZ) Berlin, Berlin, Germany
| |
Collapse
|
3
|
Jeon J, Kim Y, Kim H, Kang JS, Lee WJ. Anti-inflammatory Effect of Alloferon on Ovalbumin-induced Asthma. Immune Netw 2015; 15:304-12. [PMID: 26770184 PMCID: PMC4700406 DOI: 10.4110/in.2015.15.6.304] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 11/23/2015] [Accepted: 11/28/2015] [Indexed: 12/17/2022] Open
Abstract
Asthma is a well-known inflammatory lung disease; however, the specific underlying mechanism is largely unknown. We previously demonstrated that alloferon effectively downregulates pulmonary inflammation. In this study, we examined whether alloferon has a therapeutic effect on asthma. Alloferon remarkably decreased the number of eosinophils, macrophages, and neutrophils in the bronchoalveolar lavage fluid (BALF) from ovalbumin (OVA)-induced asthma mice. It was synergistically decreased with 2.5 mg/kg prednisolone (PDA). Inflammatory cell infiltration around the bronchioles and in the alveolus of OVA-induced asthma mice was effectively prevented by alloferon alone and combined treatment with alloferon and PDS. The production of IL-5 and IL-17 was decreased by alloferon alone and combined treatment with alloferon and PDS. There was no change the level of total immunoglobulin (Ig) following alloferon administration; however, total Ig was decreased by PDS. IgG2a levels were not changed by either alloferon alone or alloferon in combination with PDS. However, the levels of OVA-specific IgG1 and IgE were decreased by alloferon and PDS. In conclusion, our results suggest that a combination of alloferon and prednisolone is effective for the treatment of asthma, as it prevents inflammatory cell infiltration via the downregulation of IL-5 and IL-17 production and decreases IgG1 and IgE production via the suppression of T helper type 2 immune response.
Collapse
Affiliation(s)
- Jane Jeon
- Department of Anatomy, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Yejin Kim
- Department of Anatomy, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Hyemin Kim
- Department of Anatomy, Seoul National University College of Medicine, Seoul 03080, Korea.; Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul 03080, Korea
| | - Jae Seung Kang
- Department of Anatomy, Seoul National University College of Medicine, Seoul 03080, Korea.; Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul 03080, Korea
| | - Wang Jae Lee
- Department of Anatomy, Seoul National University College of Medicine, Seoul 03080, Korea
| |
Collapse
|
4
|
Dai S, Yin K, Yao X, Zhou L. Inhibition of interleukin-13 gene expression by triptolide in activated T lymphocytes. Respirology 2014; 18:1249-55. [PMID: 23796028 DOI: 10.1111/resp.12145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 04/01/2013] [Accepted: 04/28/2013] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND OBJECTIVE Triptolide, a type of diterpenoid, is the active compound of Tripterygium wilfordii; it plays roles in anti-inflammatory and immune response regulation. Our objective was to investigate the mechanism of the inhibitory effect of triptolide on interleukin-13 (IL-13) gene expression in activated T lymphocytes. Understanding the molecular mechanism by which triptolide exerts a therapeutic function may be useful in developing a pharmaceutical treatment for asthma. METHODS Peripheral blood mononuclear cells (PBMC) and Hut-78 cells were stimulated with anti-CD3/CD28 with or without co-incubation with triptolide. The alteration of IL-13 messenger RNA (mRNA), expression and protein level were analysed using real-time reverse transcription polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay, respectively. The intracellular distribution profile of transcription factor GATA3 and nuclear factor of activated T cells (NFAT1) were analysed by Western blotting. The binding rates of GATA3 and NFAT1 to the promoter sequence of IL-13 were analysed by chromatin immunoprecipitation (ChIP) PCR. RESULTS In PBMC, the release of IL-13 was dependent on anti-CD3/CD28 stimulation. Its release could be inhibited by triptolide at the concentration of 500 nmol. In Hut-78 cells, IL-13 mRNA and protein expression were increased with anti-CD3/CD28 stimulation and significantly inhibited by incubation with 28 nmol triptolide. This concentration of triptolide also significantly inhibited the nuclear translocation of GATA3 and NFAT1 reducing the binding rate to the IL-13 gene promoter. CONCLUSIONS Triptolide inhibits IL-13 gene transcription and protein expression by inhibiting GATA3 and NFAT1 nuclear translocation and their binding rates to the IL-13 gene promoter region.
Collapse
Affiliation(s)
- Shanlin Dai
- Department of Respiratory Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | | | | | | |
Collapse
|
5
|
Association of the SNP rs1800925(C/T) in the interleukin-13 gene promoter with pulmonary function in Chinese Han patients with idiopathic pulmonary fibrosis. Cell Biochem Biophys 2014; 67:905-9. [PMID: 23549736 DOI: 10.1007/s12013-013-9580-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The present report studied potential association of the rs1800925(C/T) single nucleotide polymorphism (SNP) of the Interleukin (IL)-13 gene promoter with idiopathic pulmonary fibrosis (IPF) in patients of Chinese Han ethnicity. Seventy patients with IPF were enrolled and divided into three subgroups: group A (61-79 % pred. DLCO; n = 22), group B (51-60% pred. DLCO; n = 20), and group C (≤50% pred. DLCO; n = 28). Control group consisted of 80 healthy individuals of Chinese Han ethnicity. The SNP rs1800925(C/T) was genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. The IL-13 CC genotype was present in 28/70 (40.0%), homozygous TT in 6/70 (8.6%) and heterozygous CT in 36/70 (51.4%) patients with IPF. In control group, these genotypes were present in 30/80 (37.5%), 11/80 (13.75%), 39/80 (48.75%), respectively, indicating that the distribution of the above three genotypes was not significantly different between patients with IPF and healthy controls. When the patients were stratified according to their DLCO and DLCO/VA, the frequencies of genotypes CT and TT in the groups A, B, and C were, respectively, 40.9% (9/22), 50% (10/20), and 82.1% (23/28). Thus, significant differences in the distribution of alleles at -1112 region of IL-13 gene were observed among the study groups A, B, and C, with the highest frequency in group C (p < 0.05). In conclusion, the rs1800925 T allele of the IL-13 gene is associated with worse pulmonary function in patients with IPF of Chinese Han ethnicity.
Collapse
|
6
|
Chuang HC, Hsiao TC, Wu CK, Chang HH, Lee CH, Chang CC, Cheng TJ. Allergenicity and toxicology of inhaled silver nanoparticles in allergen-provocation mice models. Int J Nanomedicine 2013; 8:4495-506. [PMID: 24285922 PMCID: PMC3841295 DOI: 10.2147/ijn.s52239] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Silver nanoparticles (AgNP) have been associated with the exacerbation of airway hyperresponsiveness. However, the allergenicity and toxicology of AgNP in healthy and allergic individuals are unclear. We investigated the pathophysiological responses to AgNP inhalation in a murine model of asthma. Continuous and stable levels of 33 nm AgNP were maintained at 3.3 mg/m3 during the experimental period. AgNP exposure concomitant with ovalbumin challenge increased the enhanced pause (Penh) in the control and allergic groups. AgNP evoked neutrophil, lymphocyte and eosinophil infiltration into the airways and elevated the levels of allergic markers (immunoglobulin E [IgE] and leukotriene E4 [LTE4]), the type 2 T helper (Th2) cytokine interleukin-13 (IL-13), and oxidative stress (8-hydroxy-2′-deoxyguanosine [8-OHdG]) in healthy and allergic mice. Bronchocentric interstitial inflammation was observed after AgNP inhalation. After inhalation, the AgNP accumulated predominantly in the lungs, and trivial amounts of AgNP were excreted in the urine and feces. Furthermore, the AgNP induced inflammatory responses in the peritoneum. The inhalation of AgNP may present safety concerns in healthy and susceptible individuals.
Collapse
Affiliation(s)
- Hsiao-Chi Chuang
- School of respiratory Therapy, College of Medicine Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan ; Division of Pulmonary Medicine, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
7
|
Elhassan AAM, Hussein AA, Mohamed HS, Rockett K, Kwiatkowski D, Elhassan AM, Ibrahim ME. The 5q31 region in two African populations as a facet of natural selection by infectious diseases. RUSS J GENET+ 2013. [DOI: 10.1134/s1022795413020051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Freishtat RJ, Watson AM, Benton AS, Iqbal SF, Pillai DK, Rose MC, Hoffman EP. Asthmatic airway epithelium is intrinsically inflammatory and mitotically dyssynchronous. Am J Respir Cell Mol Biol 2011; 44:863-9. [PMID: 20705942 PMCID: PMC3135846 DOI: 10.1165/rcmb.2010-0029oc] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Accepted: 07/12/2010] [Indexed: 12/30/2022] Open
Abstract
Asthma is an inflammatory condition for which anti-inflammatory glucocorticoids are the standard of care. However, similar efficacy has not been shown for agents targeting inflammatory cells and pathways. This suggests a noninflammatory cell contributor (e.g., epithelium) to asthmatic inflammation. Herein, we sought to define the intrinsic and glucocorticoid-affected properties of asthmatic airway epithelium compared with normal epithelium. Human primary differentiated normal and asthmatic airway epithelia were cultured in glucocorticoid-free medium beginning at -48 hours. They were pulsed with dexamethasone (20 nM) or vehicle for 2 hours at -26, -2, +22, and +46 hours. Cultures were mechanically scrape-wounded at 0 hours and exposed continuously to bromodeoxyuridine (BrdU). Cytokine secretions were analyzed using cytometric bead assays. Wound regeneration/mitosis was analyzed by microscopy and flow cytometry. Quiescent normal (n = 3) and asthmatic (n = 6) epithelia showed similar minimal inflammatory cytokine secretion and mitotic indices. After wounding, asthmatic epithelia secreted more basolateral TGF-β1, IL-10, IL-13, and IL-1β (P < 0.05) and regenerated less efficiently than normal epithelia (+48 h wound area reduction = [mean ± SEM] 50.2 ± 7.5% versus 78.6 ± 7.7%; P = 0.02). Asthmatic epithelia showed 40% fewer BrdU(+) cells at +48 hours (0.32 ± 0.05% versus 0.56 ± 0.07% of total cells; P = 0.03), and those cells were more dyssynchronously distributed along the cell cycle (52 ± 10, 25 ± 4, 23 ± 7% for G1/G0, S, and G2/M, respectively) than normal epithelia (71 ± 1, 12 ± 2, and 17 ± 2% for G1/G0, S, and G2/M, respectively). Dexamethasone pulses improved asthmatic epithelial inflammation and regeneration/mitosis. In summary, we show that inflammatory/fibrogenic cytokine secretions are correlated with dyssynchronous mitosis upon injury. Intermittent glucocorticoids simultaneously decreased epithelial cytokine secretions and resynchronized mitosis. These data, generated in an airway model lacking inflammatory cells, support the concept that epithelium contributes to asthmatic inflammation.
Collapse
Affiliation(s)
- Robert J Freishtat
- Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC 20010, USA.
| | | | | | | | | | | | | |
Collapse
|
9
|
Abstract
IMPORTANCE OF THE FIELD In asthma IL-4 and IL-13 have been demonstrated to play major pathogenic roles and therefore their blockade would potentially represent a plausible therapeutic approach. AREAS COVERED IN THIS REVIEW Pitrakinra is a dual IL-4/IL-13 inhibitor currently under development for asthma and the existing preclinical and clinical data are discussed. WHAT THE READER WILL GAIN Inhaled pitrakinra demonstrated a good anti-inflammatory potential and a good safety profile on a short-term basis but its place in asthma therapy is still to be found. TAKE HOME MESSAGE Specific anticytokine therapies might in the near future reshape asthma therapy.
Collapse
Affiliation(s)
- Sabina A Antoniu
- Department of Medicine II -Pulmonary Disease, Gr T Popa University of Medicine and Pharmacy Iaşi, Pulmonary Disease University Hospital, 30 Dr I Cihac Str, 700115 Iasi, Romania.
| | | |
Collapse
|
10
|
Abstract
Asthma is a disease of the airways in which several cytokines such as interleukin (IL)-4, IL-5, IL-13 and tumor necrosis factor-alpha (TNFalpha) play a major role in the development and progression of inflammation, airway hyperresponsiveness, mucus production, and airway remodeling. The conventional anti-inflammatory therapies, represented by inhaled corticosteroids and antileukotrienes, are not always able to provide optimal disease control and it is therefore hoped that cytokine antagonists could achieve this goal in such situations. Anticytokine therapies have been tested in preclinical studies and some have entered clinical trials. Anti-IL-4 therapies have been tested in animal models of allergy-related asthma, but because of unclear efficacy their development was discontinued. However, IL-4/IL-13 dual antagonists and IL-13-specific blocking agents are more promising, as they exhibit more sustained anti-inflammatory effects. IL-5 antagonists have been found to be of limited efficacy in clinical studies but might be useful in conditions characterized by severe hypereosinophilia, and in which asthma is one of the disease manifestations. Unlike other chronic inflammatory conditions, such as rheumatoid arthritis, the use of anti-TNFalpha therapies in asthma might be limited by the unfavorable risk/benefit ratio associated with long-term use. The identification of so-called asthma TNFalpha phenotypes and perhaps the use of a less aggressive treatment regimen might address this important aspect. Other cytokine antagonists (for example for IL-9 or IL-25) are currently being evaluated in the asthma setting, and could open new therapeutic perspectives based on their efficacy and safety.
Collapse
Affiliation(s)
- Sabina Antonela Antoniu
- University of Medicine and Pharmacy, Gr.T.Popa Iasi, Faculty of Medicine, Department of Internal Medicine 4, Division of Pulmonary Disease, and Pulmonary Disease University Hospital, Iasi, Romania.
| |
Collapse
|
11
|
Altered regulation of aquaporin gene expression in allergen and IL-13-induced mouse models of asthma. Cytokine 2009; 46:111-8. [PMID: 19237298 DOI: 10.1016/j.cyto.2008.12.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 10/29/2008] [Accepted: 12/29/2008] [Indexed: 01/10/2023]
Abstract
IL-13 is known to affect many processes that contribute to an asthmatic phenotype, including inflammation, fibrosis, and mucus production. Members of the aquaporin (AQP) family of transmembrane water channels are targets of regulation in models of lung injury and inflammation. Therefore, we examined AQP mRNA and protein expression in allergen and IL-13-induced mouse models of asthma. Lungs from ovalbumin sensitized and ovalbumin challenged (OVA/OVA) and IL-13 treated mice showed airway thickening, increased mucus production, and pulmonary eosinophilia. Pulmonary function tests showed a significant increase in methacholine-induced airway hyperreactivity in OVA/OVA and IL-13-treated mice as compared with controls. Quantitative PCR analysis revealed differential regulation of AQPs in these two models. AQP1 and AQP4 mRNA expression was downregulated in the OVA/OVA model, but not in the IL-13 model. AQP5 mRNA was reduced in both models, whereas AQP3 was upregulated only in the IL-13 model. Western analysis showed that diminished expression of an apically localized aquaporin, (AQP5), and concomitant upregulation of a basolateral aquaporin (AQP3 or AQP4) are characteristic features of both inducible asthma models. These results demonstrate that aquaporins are common targets of gene expression in both allergen and IL-13 induced mouse models of asthma.
Collapse
|
12
|
Nograles KE, Brasington RD, Bowcock AM. New insights into the pathogenesis and genetics of psoriatic arthritis. NATURE CLINICAL PRACTICE. RHEUMATOLOGY 2009; 5:83-91. [PMID: 19182814 PMCID: PMC2790861 DOI: 10.1038/ncprheum0987] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Accepted: 12/04/2008] [Indexed: 02/06/2023]
Abstract
Psoriasis vulgaris and psoriatic arthritis (PsA) are inter-related heritable diseases. Psoriatic skin is characterized by hyperproliferative, poorly differentiated keratinocytes and severe inflammation. Psoriatic joints are characterized by highly inflamed synovia and entheses with focal erosions of cartilage and bone. Genetic analyses have uncovered risk factors shared by both psoriasis and PsA. Predisposition to psoriasis and PsA arising from common variation is most strongly conferred by the HLA class I region. Other genetic risk factors implicate the interleukin (IL)-23 pathway and the induction and regulation of type 17 T-helper cells in the pathogenesis of both diseases. Secretion of cytokines, such as IL-22 and IL-17, could result in the hyperproliferative phenotype of keratinocytes and potentially synoviocytes, leading to a vicious cycle of cellular proliferation and inflammation in both the skin and joints. In synovial tissue, disease-related cytokines could also promote osteoclast formation, resulting in bone erosion. The next step will be to identify genetic risk factors specifically associated with PsA. Although therapies that target tumor necrosis factor are often highly successful in the treatment of both diseases, genetic findings are likely to lead to the development of treatments tailored to an individual's genetic profile.
Collapse
Affiliation(s)
- Kristine E Nograles
- Laboratory of Investigative Dermatology, The Rockefeller University, New York, NY, USA
| | | | | |
Collapse
|
13
|
Faghih Z, Erfani N, Razmkhah M, Sameni S, Talei A, Ghaderi A. Interleukin13 haplotypes and susceptibility of Iranian women to breast cancer. Mol Biol Rep 2008; 36:1923-8. [PMID: 18989750 DOI: 10.1007/s11033-008-9400-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Accepted: 10/20/2008] [Indexed: 01/21/2023]
Abstract
Interleukin-13 (IL-13) is a TH2 cytokine with direct and indirect immunoregulatory functions on cancer cells. The cytokine has been reported to have some polymorphic variations at the gene level associated with some immune related diseases including asthma and allergy. In the present study, association of three IL13 gene polymorphisms at positions -1512 A/C and -1055 C/T in the promoter and +2044 G/A in exon-4 was investigated in Iranian women with breast cancer and healthy controls. Genotyping of IL13 gene polymorphisms were performed by PCR-RFLP methods. Serum level of IL-13 was assessed by ELISA. Haplotypes were constructed from genotypic data using Arlequin 3.1 software package. Haplotype analysis revealed higher frequency of a three-locus haplotype, ACA (-1512A/-1055C/+2044A), in normal women than breast cancer patients (P < 0.025). Haplotype CCA, from the other hand, was observed with more frequency among patients than controls (P < 0.03). No statistically significant differences were found in the frequency of genotypes and alleles between patients and control group. No association was observed between investigated genotypes and other prognostic factors including tumor type, lymph node involvement and tumor size. IL-13 serum level was undetectable in both patients and control subjects. Despite observing no association between breast cancer and the single SNPs, results of this investigation suggest that the presence of CCA haplotype of IL13 gene may be associated with susceptibility of Iranian women to breast cancer.
Collapse
Affiliation(s)
- Zahra Faghih
- Shiraz Institute for Cancer Research, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | | | | | | | | |
Collapse
|
14
|
Lack of association between interleukin-13 gene polymorphisms (-1055 C/T and +2044 G/A) in Iranian patients with lung cancer. Mol Biol Rep 2008; 36:1001-5. [PMID: 18506597 DOI: 10.1007/s11033-008-9273-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2007] [Accepted: 05/13/2008] [Indexed: 01/21/2023]
Abstract
Lung cancer is one of the leading causes of death from cancer. Both immune cells and tumor cells play a key role in lung cancer immunity by secretion of cytokines and developing type-2 cell-mediated immune response. IL-13 is an immunoregulatory cytokine affecting tumor immunosurveillance by deviation of immune response from Th1 to Th2. In the present study we sought to determine the association of single nucleotide polymorphisms (SNPs) of IL-13 gene at positions +2044 (G/A) and -1055 (C/T) and lung cancer. One hundred forty one patients and 113 controls were recruited; control group was subdivided into smoker and nonsmoker individuals for serum detection. Genotyping was carried out by PCR-RFLP assay and IL-13 detection by ELISA method. No statistically significant difference was found in the frequency of genotypes, alleles, and haplotypes at positions +2044 (G/A) and -1055 (C/T) of IL-13 gene between lung cancer patients and controls. Serum level of IL-13 was not detectable in both groups. The results of this study reveal that although +2044 (G/A) and -1055 (C/T) SNPs in IL-13 are implicated in some pulmonary processes, they do not confer susceptibility to lung cancer in Iranian population.
Collapse
|
15
|
Kasaian MT, Miller DK. IL-13 as a therapeutic target for respiratory disease. Biochem Pharmacol 2008; 76:147-55. [PMID: 18502398 DOI: 10.1016/j.bcp.2008.04.002] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Revised: 04/07/2008] [Accepted: 04/10/2008] [Indexed: 11/17/2022]
Abstract
Interleukin-13 (IL-13) is a critical mediator of asthma pathology. On B cells, monocytes, epithelial cells, and smooth muscle cells, IL-13 acts through the IL-13Ralpha1/IL-4Ralpha complex to directly induce activation responses that contribute to atopic disease. In human populations, genetic polymorphisms in IL-13, its receptor components, or the essential signaling element STAT6, have all been associated with increased risk of atopy and asthma. Animal studies using IL-13 deficient mice, IL-13 transgenic animals, and IL-13 neutralization strategies have confirmed an essential role for this cytokine in driving major correlates of asthma pathology, including airway hyperresponsiveness (AHR), lung eosinophilia, mucus generation, and fibrosis. Ongoing studies continue to define both overlapping and distinct roles for IL-13 and the related cytokine, IL-4, in promoting asthmatic changes. Furthermore, new evidence concerning the role of the "decoy" receptor, IL-13Ralpha2, has prompted re-evaluation of the receptor forms that underlie the numerous activities of IL-13. In this review, we summarize the essential role of IL-13 in asthma, compare the relative contributions of IL-13 and IL-4 to key aspects of the asthmatic phenotype, and outline novel therapeutic strategies to target this critical cytokine.
Collapse
Affiliation(s)
- Marion T Kasaian
- Department of Discovery Inflammation, Wyeth Research, 200 CambridgePark Drive, Cambridge, MA 02140, USA.
| | | |
Collapse
|
16
|
Brass DM, Hollingsworth JW, Fessler MB, Savov JD, Maxwell AB, Whitehead GS, Burch LH, Schwartz DA. The IL-1 type 1 receptor is required for the development of LPS-induced airways disease. J Allergy Clin Immunol 2007; 120:121-7. [PMID: 17512577 PMCID: PMC4570244 DOI: 10.1016/j.jaci.2007.03.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2006] [Revised: 03/29/2007] [Accepted: 03/29/2007] [Indexed: 01/13/2023]
Abstract
BACKGROUND The contribution of IL-1beta signaling through the IL-1 type 1 receptor (IL-1R1) to the development of persistent LPS-induced airway disease has not been investigated. OBJECTIVE To determine the importance of signaling through the IL-1 type 1 receptor in the development of LPS-induced airway disease. METHODS We exposed IL-1R1-deficient (C57BL/6(IL-1RI-/-)) mice to an aerosol of LPS or filtered air for 1 day, 1 week, or 4 weeks. RESULTS After 4 weeks of LPS inhalation, C57BL/6(IL-1RI-/-) mice failed to develop significant submucosal thickening, whereas C57BL/6 mice had significantly thickened submucosa in small, medium, and large airways compared with those of unexposed control mice. Cell proliferation in the airways of both the 1-week and 4-week LPS-exposed C57BL/6(IL-1RI-/-) mice was significantly reduced compared with LPS-exposed C57BL/6 mice. mRNA for type III alpha-3 procollagen was significantly elevated over baseline in C57BL/6 yet remained unchanged compared with baseline in C57BL/6(IL-1RI-/-) mice after 1 week or 4 weeks of LPS inhalation. mRNA for tissue inhibitor of metalloprotease 1 in C57BL/6 mice in the 1-week and 4-week groups was significantly elevated over both control mice and C57BL/6(IL-1RI-/-) mice. CONCLUSION These data support the hypothesis that signaling through the IL-1 receptor modulates extracellular matrix homeostasis in response to inhaled LPS. CLINICAL IMPLICATIONS Attenuating IL-1R1-mediated signaling might be an effective therapy against the development of airway remodeling in chronic inflammatory diseases.
Collapse
Affiliation(s)
- David M Brass
- National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA.
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Gladkevich A, Nelemans SA, Kauffman HF, Korf J. Microarray profiling of lymphocytes in internal diseases with an altered immune response: potential and methodology. Mediators Inflamm 2006; 2005:317-30. [PMID: 16489251 PMCID: PMC1323332 DOI: 10.1155/mi.2005.317] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Recently it has become possible to investigate
expression of all human genes with microarray technique. The
authors provide arguments to consider peripheral white blood cells
and in particular lymphocytes as a model for the investigation of
pathophysiology of asthma, RA, and SLE diseases in which
inflammation is a major component. Lymphocytes are an alternative
to tissue biopsies that are most often difficult to collect
systematically. Lymphocytes express more than 75% of the human
genome, and, being an important part of the immune system, they
play a central role in the pathogenesis of asthma, RA, and SLE.
Here we review alterations of gene expression in lymphocytes and
methodological aspects of the microarray technique in these
diseases. Lymphocytic genes may become activated because of a
general nonspecific versus disease-specific mechanism.
The authors suppose that in these diseases microarray profiles of
gene expression in lymphocytes can be disease specific, rather
than inflammation specific. Some potentials and pitfalls of the
array technologies are discussed. Optimal clinical designs aimed
to identify disease-specific genes are proposed. Lymphocytes can
be explored for research, diagnostic, and possible treatment
purposes in these diseases, but their precise
value should be clarified in future investigation.
Collapse
Affiliation(s)
- Anatoliy Gladkevich
- Department of Psychiatry, University Medical Center of Groningen, The Netherlands.
| | | | | | | |
Collapse
|
18
|
Abstract
Helper T cells coordinate immune responses through the production of cytokines. Th2 cells express the closely linked Il4, Il13, and Il5 cytokine genes, whereas these same genes are silenced in the Th1 lineage. The Th1/Th2 lineage choice has become a textbook example for the regulation of cell differentiation, and recent discoveries have further refined and expanded our understanding of how Th2 differentiation is initiated and reinforced by signals from antigen-presenting cells and cytokine-driven feedback loops. Epigenetic changes that stabilize the active or silent state of the Il4 locus in differentiating helper T cells have been a major focus of recent research. Overall, the field is progressing toward an integrated model of the signaling and transcription factor networks, cis-regulatory elements, epigenetic modifications, and RNA interference mechanisms that converge to determine the lineage fate and gene expression patterns of differentiating helper T cells.
Collapse
Affiliation(s)
- K Mark Ansel
- Harvard Medical School, CBR Institute for Biomedical Research, Boston, Massachusetts 02115, USA.
| | | | | | | |
Collapse
|
19
|
Follettie MT, Ellis DK, Donaldson DD, Hill AA, Diesl V, DeClercq C, Sypek JP, Dorner AJ, Wills-Karp M. Gene expression analysis in a murine model of allergic asthma reveals overlapping disease and therapy dependent pathways in the lung. THE PHARMACOGENOMICS JOURNAL 2006; 6:141-52. [PMID: 16402082 DOI: 10.1038/sj.tpj.6500357] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Accumulating evidence in animal models and human asthma support a central role for IL-13 signaling in disease pathogenesis. In order to identify asthma and therapy associated genes, global transcriptional changes were monitored in mouse lung following antigen challenge (ovalbumin (OVA)), either alone or in the presence of a soluble IL-13 antagonist. Changes in whole lung gene expression after instillation of mIL-13 were also measured both in wild type and STAT6 deficient mice. A striking overlap in the gene expression profiles induced by either OVA challenge or mIL-13 was observed, further strengthening the relationship of IL-13 signaling to asthma. Consistent with results from functional studies, a subset of the OVA-induced gene expression was significantly inhibited by a soluble IL-13 antagonist while IL-13-modulated gene expression was completely attenuated in the absence of STAT6-mediated signaling. Results from these experiments greatly expand our understanding of asthma and provide novel molecular targets for therapy and potential biomarkers of IL-13 antagonism.
Collapse
Affiliation(s)
- M T Follettie
- Department of Molecular Profiling and Biomarker Discovery, Cambridge, MA 02140, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Noah TL, Tudor GE, Ivins SS, Murphy PC, Peden DB, Henderson FW. Repeated measurement of nasal lavage fluid chemokines in school-age children with asthma. Ann Allergy Asthma Immunol 2006; 96:304-10. [PMID: 16498852 DOI: 10.1016/s1081-1206(10)61240-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Inflammatory processes at the mucosal surface may play a role in maintenance of asthma pathophysiology. Cross-sectional studies in asthmatic patients suggest that chemokines such as interleukin 8 (IL-8) are overproduced by respiratory epithelium. OBJECTIVE To test the hypothesis that chemokine levels are persistently elevated in the respiratory secretions of asthmatic children at a stable baseline. METHODS We measured nasal lavage fluid (NLF) levels of chemokines and other mediators at 3- to 4-month intervals in a longitudinal study of asthmatic children, with nonasthmatic siblings as controls. RESULTS In a linear mixed-model analysis, both family and day of visit had significant effects on nasal mediators. Thus, data for 12 asthmatic-nonasthmatic sibling pairs who had 3 or more same-day visits were analyzed separately. For sibling pairs, median eosinophil cationic protein levels derived from serial measurements in NLF were elevated in asthmatic patients compared with nonasthmatic patients, with a near-significant tendency for elevation of total protein and eotaxin levels as well. However, no significant differences were found for IL-8 or several other chemokines. Ratios of IL-13 or IL-5 to interferon-gamma released by house dust mite antigen-stimulated peripheral blood mononuclear cells, tested on a single occasion, were significantly increased for asthmatic patients. CONCLUSIONS Substantial temporal and family-related variability exists in nasal inflammation in asthmatic children. Although higher levels of eosinophil cationic protein are usually present in NLF of patients with stable asthma compared with patients without asthma, chemokines other than eotaxin are not consistently increased. Eosinophil activation at the mucosal surface is a more consistent predictor of asthmatic symptoms than nonspecific elevation of epithelium-derived inflammatory chemokine levels.
Collapse
Affiliation(s)
- Terry L Noah
- Department of Pediatrics, School of Medicine, The University of North Carolina at Chapel Hill, 27599-7220, USA.
| | | | | | | | | | | |
Collapse
|
21
|
Dreyfus DH, Matczuk A, Fuleihan R. An RNA external guide sequence ribozyme targeting human interleukin-4 receptor alpha mRNA. Int Immunopharmacol 2005; 4:1015-27. [PMID: 15222976 DOI: 10.1016/j.intimp.2004.03.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2004] [Revised: 03/16/2004] [Accepted: 03/24/2004] [Indexed: 11/23/2022]
Abstract
RNA oligonucleotides termed External Guide Sequence (EGS) and RNAi have been described that target specific gene expression by site-specific cleavage of mRNA. EGS serve as an RNA catalyst or ribozyme by directing bound mRNA to the ubiquitous cellular enzyme RNAse P. We describe an EGS targeting human interleukin (IL)-4 receptor alpha mRNA, an important cytokine receptor in the pathogenesis of asthma and allergic disease expressed in pulmonary tissues. This EGS was designed to explore pulmonary delivery of catalytic RNA oligonucleotides as a novel therapy in asthma and other atopic diseases. Inhaled DNA oligonucleotides termed Respirable Antisense OligoNucleotide Sequences (RASONS) are selectively internalized in lung tissues in a complex with endogenous lipid surfactants present in normal lung and can alter pulmonary gene expression. Potential applications of inhaled RNA oligonucleotides in therapy of pulmonary and related systemic diseases are discussed.
Collapse
Affiliation(s)
- David H Dreyfus
- Department of Pediatrics, Yale School of Medicine, 488 Norton Parkway, New Haven, CT 06511, USA.
| | | | | |
Collapse
|
22
|
Finotto S, Hausding M, Doganci A, Maxeiner JH, Lehr HA, Luft C, Galle PR, Glimcher LH. Asthmatic changes in mice lacking T-bet are mediated by IL-13. Int Immunol 2005; 17:993-1007. [PMID: 16000330 DOI: 10.1093/intimm/dxh281] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mice with a targeted deletion of the T-bet gene exhibit spontaneous airway hyperresponsiveness (AHR), airway inflammation, enhanced recovery of T(h)2 cytokines from bronchoalveolar lavage fluid, sub-epithelial collagen deposition and myofibroblast transformation. Here we analyze the mechanisms responsible for the chronic airway remodeling observed in these mice. CD4+ T cells isolated from the lung of T-bet-deficient mice were spontaneously activated CD44(high)CD69(high) memory T cells, with a typical T(h)2 cytokine profile. Neutralization of IL-13 but not IL-4 resulted in amelioration of AHR in airways of mice lacking T-bet. IL-13 blockade also led to reduced eosinophilia and decreased vimentin, transforming growth factor beta (TGF-beta) and alpha smooth muscle actin (alphaSMA) levels. T-bet(-/-) lung fibroblasts proliferated very rapidly and released increased amounts of TGF-beta. Interestingly, neutralization of TGF-beta ameliorated aspects of the chronic airway remodeling phenotype but did not reduce AHR. These data highlight a T-bet-directed function for IL-13 in controlling lung remodeling that is both dependent on and independent of its interaction with TGF-beta in the asthmatic airway.
Collapse
Affiliation(s)
- Susetta Finotto
- Laboratory of Cellular and Molecular Immunology of the Lung, University of Mainz, Mainz, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
23
|
Yang G, Li L, Volk A, Emmell E, Petley T, Giles-Komar J, Rafferty P, Lakshminarayanan M, Griswold DE, Bugelski PJ, Das AM. Therapeutic dosing with anti-interleukin-13 monoclonal antibody inhibits asthma progression in mice. J Pharmacol Exp Ther 2005; 313:8-15. [PMID: 15644434 DOI: 10.1124/jpet.104.076133] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
In vivo models have demonstrated that interleukin-13 (IL-13) plays an important role in asthma; however, few studies have evaluated the effect of inhibition of IL-13 on established and persistent disease. In the present study, we have investigated the effect of a therapeutic dosing regimen with an anti-IL-13 monoclonal antibody (mAb) in a chronic mouse model of persistent asthma. BALB/c mice were sensitized to allergen [ovalbumin (OVA); on days 1 and 8] and challenged with OVA weekly from day 22. Anti-IL-13 mAb or vehicle dosing was initiated following two OVA challenges when disease was established. At this time, mice exhibited airway hyperresponsiveness (AHR), increased mucus production, inflammation, and initiation of subepithelial fibrosis compared with saline-challenged mice. Mice received four additional OVA challenges. Treatment with anti-IL-13 mAb inhibited AHR and prevented the further development of subepithelial fibrosis and progression of inflammation. Furthermore, mAb treatment reversed the mucus hyperplasia to basal levels. These effects were associated with an inhibition of cytokines, chemokines, and matrix metalloproteinase-9. These data demonstrate that neutralization of IL-13 can inhibit the progression of established disease in the presence of repeated allergen exposures.
Collapse
Affiliation(s)
- Gaoyun Yang
- Immunobiology, Centocor Inc., Mail Stop: R-4-1, 145 King of Prussia Rd., Radnor, PA 19087, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Akamizu T, Hiratani H, Ikegami S, Rich SS, Bowden DW. Association study of autoimmune thyroid disease at 5q23-q33 in Japanese patients. J Hum Genet 2003; 48:236-242. [PMID: 12768441 DOI: 10.1007/s10038-003-0017-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2003] [Accepted: 02/20/2003] [Indexed: 10/26/2022]
Abstract
As part of a genome scan to locate familial Graves' disease (GD) and Hashimoto's thyroiditis (HT) genes, an autoimmune thyroid disease (AITD) susceptibility locus has recently been identified at 5q31-q33 in a Japanese population. We performed an association study using six microsatellite markers located at this locus in a set of 440 unrelated Japanese AITD patients and 218 Japanese controls. We found significant allelic association between AITD and three markers located in 5q23-q33. GD demonstrated significant associations with two of these markers, while HT did not show significant associations with any markers. Further, when patients with GD were stratified according to clinical manifestations, the association was significantly different from the other subgroup of each category. These findings suggest the presence of susceptible genes of AITD, especially distinct subgroups of GD, in or near 5q23-q33.
Collapse
Affiliation(s)
- Takashi Akamizu
- Department of Experimental Therapeutics, Translational Research Center, Kyoto University Hospital, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan.
| | - Hitomi Hiratani
- Department of Experimental Therapeutics, Translational Research Center, Kyoto University Hospital, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Satoshi Ikegami
- Department of Experimental Therapeutics, Translational Research Center, Kyoto University Hospital, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Stephen S Rich
- Department of Public Health Science, Wake Forest University School of Medicine, Winston-Salem, North Carolina, 27157, USA
| | - Donald W Bowden
- Department of Biochemistry, Wake Forest University School of Medicine, Winston-Salem, North Carolina, 27157, USA
| |
Collapse
|
25
|
Whitehead GS, Walker JKL, Berman KG, Foster WM, Schwartz DA. Allergen-induced airway disease is mouse strain dependent. Am J Physiol Lung Cell Mol Physiol 2003; 285:L32-42. [PMID: 12626335 DOI: 10.1152/ajplung.00390.2002] [Citation(s) in RCA: 137] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We investigated the development of airway hyperreactivity (AHR) and inflammation in the lungs of nine genetically diverse inbred strains of mice [129/SvIm, A/J, BALB/cJ, BTBR+(T)/tf/tf, CAST/Ei, C3H/HeJ, C57BL/6J, DBA/2J, and FVB/NJ] after sensitization and challenge with ovalbumin (OVA). At 24, 48, and 72 h post-OVA exposure, the severity of AHR and eosinophilic inflammation of the mouse strains ranged from relatively unresponsive to responsive. The severity of the airway eosinophilia of some strains did not clearly correlate with the development of AHR. The temporal presence of T helper type 2 cytokines in lung lavage fluid also varied markedly among the strains. The levels of IL-4 and IL-13 were generally increased in the strains with the highest airway eosinophilia at 24 and 72 h postexposure, respectively; the levels of IL-5 were significantly increased in most of the strains with airway inflammation over the 72-h time period. The differences of physiological and biological responses among the inbred mouse strains after OVA sensitization and challenge support the hypothesis that genetic factors contribute, in part, to the development of allergen-induced airway disease.
Collapse
Affiliation(s)
- Gregory S Whitehead
- Pulmonary and Critical Care Medicine, Duke University Medical Center, Research Drive, Rm. 275 MSRB, DUMC Box 2629, Durham, NC 27710-0001, USA.
| | | | | | | | | |
Collapse
|
26
|
Singh P, Daniels M, Winsett DW, Richards J, Doerfler D, Hatch G, Adler KB, Gilmour MI. Phenotypic comparison of allergic airway responses to house dust mite in three rat strains. Am J Physiol Lung Cell Mol Physiol 2003; 284:L588-98. [PMID: 12618421 DOI: 10.1152/ajplung.00287.2002] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Brown Norway (BN) rats develop a robust response to antigens in the lung, characterized by a large increase in allergen-specific immune function and pulmonary eosinophilia. The objective of this study was to investigate alternative models by determining whether other rat strains could be sensitized to house dust mite (HDM) antigen and whether the allergic disease process could be worsened with repeated allergen exposure. In general, BN rats sensitized by either subcutaneous or intratracheal routes exhibited increased pulmonary allergy compared with Sprague-Dawley (SD) and Lewis (L) rats. Multiple intratracheal allergen exposures incrementally increased HDM-specific immune function in BN rats but progressively decreased eosinophil recruitment and markers of lung injury. SD rats had more moderate responses, whereas L rats were relatively unresponsive. Because BN rats developed stronger clinical hallmarks of allergic asthma under various immunization regimes compared with SD and L rats, we conclude that the BN is the most appropriate strain for studying allergic asthma-like responses in rats. Phenotypic differences in response to HDM were associated with differences in the Th1/Th2 cytokine balance and antioxidant capacity.
Collapse
Affiliation(s)
- Pramila Singh
- North Carolina State University, College of Veterinary Medicine, Raleigh 27606, USA
| | | | | | | | | | | | | | | |
Collapse
|
27
|
Madhankumar AB, Mintz A, Debinski W. Alanine-scanning mutagenesis of alpha-helix D segment of interleukin-13 reveals new functionally important residues of the cytokine. J Biol Chem 2002; 277:43194-205. [PMID: 12189139 DOI: 10.1074/jbc.m205047200] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We documented that alpha-helices A, C, and D in human interleukin-13 (IL13) participate in interaction with its respective receptors. We hypothesized that alpha-helix D is the site II of the cytokine that binds IL13Ralpha1, a component of the normal tissue heterodimeric signaling IL13/4 receptor (IL13/4R), and that alpha-helix D independently binds a monomeric IL13Ralpha2 receptor, which is a non-signaling glioma-restricted receptor for IL13. Therefore, we alanine-scanned mutagenized helix D of IL13 to identify the residues involved in the respective receptors interaction. Recombinant muteins of IL13 were produced in Escherichia coli, and their structural integrity and identity were verified. The alanine mutants were tested in functional cellular assays, in which IL13 interaction with IL13Ralpha2 (glioma cells) or an ability to functionally stimulate IL13/4R (TF-1 cells) were examined, and also in binding assays. We found that residues 105, 106, and 109 of the d-helix of IL13 are responsible for interacting with the glioma-associated receptor. Moreover, glutamic acids at positions 92 and 110, and leucine at position 104 was found to be important for IL13/4R stimulation. Thus, alpha-helix D of IL13 is the primary site responsible for interaction with the IL13 binding proteins. We propose a model that illustrates the binding mode of IL13 with cancer-related IL13Ralpha2 and physiological IL13/4R.
Collapse
Affiliation(s)
- A B Madhankumar
- Department of Surgery, Section of Neurosurgery, College of Medicine, Pennsylvania State University, Hershey, Pennsylvania 17033-0850, USA
| | | | | |
Collapse
|
28
|
Barnes PJ. Th2 cytokines and asthma: an introduction. Respir Res 2001; 2:64-5. [PMID: 11686866 PMCID: PMC59569 DOI: 10.1186/rr39] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2001] [Accepted: 03/02/2001] [Indexed: 12/13/2022] Open
Affiliation(s)
- P J Barnes
- National Heart & Lung Institute, Imperial College, Dovehouse Street, London SW3 6LY, UK
| |
Collapse
|
29
|
Abstract
Genome-wide screens for asthma and atopy susceptibility loci have been completed in six population samples. Despite the extensive clinical heterogeneity associated with these phenotypes, 20 chromosomal regions show evidence of linkage (P < 0.01) in three or more population samples. Thus, this survey suggests that at least 20 independent loci influence susceptibility to asthma, atopy, or associated phenotypes and indicates that the genetics of these phenotypes are truly complex. Ongoing studies are aimed at identifying the specific gene or genes in these regions that confer susceptibility to asthma or atopy.
Collapse
Affiliation(s)
- C Ober
- Department of Human Genetics, University of Chicago, 940 E 58th Street, Chicago, IL 60637, USA.
| |
Collapse
|