1
|
Ben-Baruch Morgenstern N, Shoda T, Rochman Y, Caldwell JM, Collins MH, Mukkada V, Putnam PE, Bolton SM, Felton JM, Rochman M, Murray-Petzold C, Kliewer KL, Rothenberg ME. Local type 2 immunity in eosinophilic gastritis. J Allergy Clin Immunol 2023; 152:136-144. [PMID: 36754294 PMCID: PMC10330288 DOI: 10.1016/j.jaci.2023.01.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Eosinophilic gastritis (EoG) associates with type 2 immunity. However, the type 2 cytokine cellular source, gastric T-cell composition, and gastric T-cell relationship (or relationships) with disease pathology remain understudied. OBJECTIVE We defined gastric T-cell populations and their association with histologic and endoscopic EoG pathology. METHODS Gastric biopsy samples (n = 6 EoG, n = 7 control) were subjected to histologic, endoscopic, and flow cytometry analyses. In a complementary cohort (n = 83 EoG), IL4, IL5, and IL13 mRNA levels were correlated with EoG pathologic parameters. RESULTS Gastric biopsy samples contained CD3+ T cells that were mainly CD8+; the CD8/CD4 ratio was comparable in EoG and control biopsy samples (5.7 ± 3.0 and 4.3 ± 0.6, respectively; P = .28). Gastric regulatory T (CD3+CD4+FOXP3+) and TH2 (CD3+CD4+GATA3+) cell levels were increased in EoG versus controls (2-fold, P < .05 and 10-fold, P < .001, respectively) and correlated with gastric eosinophil levels (r = 0.63, P < .05 and r = 0.85, P < .001, respectively), endoscopic pathology (r = 0.56, P < .01; r = 0.84, P < .001, respectively), and histopathology (r = 0.72, P < .01; r = 0.82, P < .01, respectively). Cytokine-positive, most notably IL-4+, TH2 cell levels strongly correlated with histologic and endoscopic scores (r = 0.82, P < .0001 and r = 0.78, P < .0001, respectively). In an independent EoG cohort (n = 83), bulk gastric IL4, IL5, and IL13 mRNA levels correlated with histologic score (r = 0.22, P < .005; r = 0.54, P < .0001; and r = 0.36, P < .0001, respectively) and endoscopic score (r = 0.27, P < .001; r = 0.40, P < .0001; and r = 0.35, P < .0001, respectively). CONCLUSIONS EoG is a TH2 cell-associated disease featuring increased gastric type 2 cytokine-producing CD3+CD4+GATA3+TH2 cells that strongly correlate with disease pathologies.
Collapse
Affiliation(s)
- Netali Ben-Baruch Morgenstern
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Tetsuo Shoda
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Yrina Rochman
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Julie M Caldwell
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Margaret H Collins
- Division of Pathology and Laboratory Medicine, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Vincent Mukkada
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Philip E Putnam
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Scott M Bolton
- Division of Gastroenterology, Hepatology, and Nutrition, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Jennifer M Felton
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Mark Rochman
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Cristin Murray-Petzold
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Kara L Kliewer
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio.
| |
Collapse
|
2
|
Wang J, Zhou Y, Zhang H, Hu L, Liu J, Wang L, Wang T, Zhang H, Cong L, Wang Q. Pathogenesis of allergic diseases and implications for therapeutic interventions. Signal Transduct Target Ther 2023; 8:138. [PMID: 36964157 PMCID: PMC10039055 DOI: 10.1038/s41392-023-01344-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 01/20/2023] [Accepted: 02/03/2023] [Indexed: 03/26/2023] Open
Abstract
Allergic diseases such as allergic rhinitis (AR), allergic asthma (AAS), atopic dermatitis (AD), food allergy (FA), and eczema are systemic diseases caused by an impaired immune system. Accompanied by high recurrence rates, the steadily rising incidence rates of these diseases are attracting increasing attention. The pathogenesis of allergic diseases is complex and involves many factors, including maternal-fetal environment, living environment, genetics, epigenetics, and the body's immune status. The pathogenesis of allergic diseases exhibits a marked heterogeneity, with phenotype and endotype defining visible features and associated molecular mechanisms, respectively. With the rapid development of immunology, molecular biology, and biotechnology, many new biological drugs have been designed for the treatment of allergic diseases, including anti-immunoglobulin E (IgE), anti-interleukin (IL)-5, and anti-thymic stromal lymphopoietin (TSLP)/IL-4, to control symptoms. For doctors and scientists, it is becoming more and more important to understand the influencing factors, pathogenesis, and treatment progress of allergic diseases. This review aimed to assess the epidemiology, pathogenesis, and therapeutic interventions of allergic diseases, including AR, AAS, AD, and FA. We hope to help doctors and scientists understand allergic diseases systematically.
Collapse
Affiliation(s)
- Ji Wang
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Yumei Zhou
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Honglei Zhang
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Linhan Hu
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Juntong Liu
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Lei Wang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 1000210, China
| | - Tianyi Wang
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Haiyun Zhang
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Linpeng Cong
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China
| | - Qi Wang
- National Institute of TCM constitution and Preventive Medicine, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, P.R. China.
| |
Collapse
|
3
|
Title-Inflammatory Signaling Pathways in Allergic and Infection-Associated Lung Diseases. ALLERGIES 2022. [DOI: 10.3390/allergies2020006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Lung inflammation can be caused by pathogen infection alone or by allergic disease, leading to pneumonitis. Most of the allergens (antigens) that cause allergic lung diseases, including asthma and hypersensitivity pneumonitis (HP), are derived from microorganisms, such as bacteria, viruses, and fungi, but some inorganic materials, such as mercury, can also cause pneumonitis. Certain allergens, including food and pollen, can also cause acute allergic reactions and lead to lung inflammation in individuals predisposed to such reactions. Pattern recognition-associated and damage-associated signaling by these allergens can be critical in determining the type of hypersensitization and allergic disease, as well as the potential for fibrosis and irreversible lung damage. This review discusses the signs, symptoms, and etiology of allergic asthma, and HP. Furthermore, we review the immune response and signaling pathways involved in pneumonitis due to both microbial infection and allergic processes. We also discuss current and potential therapeutic interventions for infection-associated and allergic lung inflammation.
Collapse
|
4
|
Active unfolding of the glucocorticoid receptor by the Hsp70/Hsp40 chaperone system in single-molecule mechanical experiments. Proc Natl Acad Sci U S A 2022; 119:e2119076119. [PMID: 35377810 PMCID: PMC9169861 DOI: 10.1073/pnas.2119076119] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
One of the key unresolved questions in the field of molecular chaperones is how they can actively unfold proteins. In this study, we discovered that the Hsp70/Hsp40 chaperone system completely unfolds a native soluble substrate protein, the ligand-binding domain of the glucocorticoid receptor, in a concerted action. Our high-resolution optical tweezers data show in real time how the substrate is attacked by the chaperone machinery. As soon as the hormone has left the binding pocket, up to five Hsp70/Hsp40 complexes bind and unfold the protein in a stepwise manner. This finding constitutes direct evidence that the chaperone machinery can bind to the folded core of the receptor, thus providing a mechanism for Hsp70-induced protein unfolding. The glucocorticoid receptor (GR) is an important transcription factor and drug target linked to a variety of biological functions and diseases. It is one of the most stringent physiological clients of the Hsp90/Hsp70/Hsp40 chaperone system. In this study, we used single-molecule force spectroscopy by optical tweezers to observe the interaction of the GR’s ligand-binding domain (GR-LBD) with the Hsp70/Hsp40 chaperone system (Hsp70/40). We show in real time that Hsp70/40 can unfold the complete GR-LBD in a stepwise manner. Each unfolding step involves binding of an Hsp70 to the GR-LBD and subsequent adenosine triphosphate (ATP) hydrolysis, stimulated by Hsp40. The kinetics of chaperone-mediated unfolding depend on chaperone concentrations as well as the presence of the nucleotide exchange factor BAG1. We find that Hsp70/40 can stabilize new unfolding intermediates, showing that Hsp70/40 can directly interact with the folded core of the protein when working as an unfoldase. Our results support an unfolding mechanism where Hsp70 can directly bind to folded protein structures and unfold them upon ATP hydrolysis. These results provide important insights into the regulation of GR by Hsp70/40.
Collapse
|
5
|
Machado BAS, Hodel KVS, Fonseca LMDS, Mascarenhas LAB, Andrade LPCDS, Rocha VPC, Soares MBP, Berglund P, Duthie MS, Reed SG, Badaró R. The Importance of RNA-Based Vaccines in the Fight against COVID-19: An Overview. Vaccines (Basel) 2021; 9:1345. [PMID: 34835276 PMCID: PMC8623509 DOI: 10.3390/vaccines9111345] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/02/2021] [Accepted: 11/15/2021] [Indexed: 12/23/2022] Open
Abstract
In recent years, vaccine development using ribonucleic acid (RNA) has become the most promising and studied approach to produce safe and effective new vaccines, not only for prophylaxis but also as a treatment. The use of messenger RNA (mRNA) as an immunogenic has several advantages to vaccine development compared to other platforms, such as lower coast, the absence of cell cultures, and the possibility to combine different targets. During the COVID-19 pandemic, the use of mRNA as a vaccine became more relevant; two out of the four most widely applied vaccines against COVID-19 in the world are based on this platform. However, even though it presents advantages for vaccine application, mRNA technology faces several pivotal challenges to improve mRNA stability, delivery, and the potential to generate the related protein needed to induce a humoral- and T-cell-mediated immune response. The application of mRNA to vaccine development emerged as a powerful tool to fight against cancer and non-infectious and infectious diseases, for example, and represents a relevant research field for future decades. Based on these advantages, this review emphasizes mRNA and self-amplifying RNA (saRNA) for vaccine development, mainly to fight against COVID-19, together with the challenges related to this approach.
Collapse
Affiliation(s)
- Bruna Aparecida Souza Machado
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| | - Katharine Valéria Saraiva Hodel
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| | - Larissa Moraes dos Santos Fonseca
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| | - Luís Alberto Brêda Mascarenhas
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| | - Leone Peter Correia da Silva Andrade
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| | - Vinícius Pinto Costa Rocha
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| | - Milena Botelho Pereira Soares
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Brazil
| | - Peter Berglund
- HDT Bio, 1616 Eastlake Ave E, Seattle, WA 98102, USA; (P.B.); (M.S.D.); (S.G.R.)
| | - Malcolm S. Duthie
- HDT Bio, 1616 Eastlake Ave E, Seattle, WA 98102, USA; (P.B.); (M.S.D.); (S.G.R.)
| | - Steven G. Reed
- HDT Bio, 1616 Eastlake Ave E, Seattle, WA 98102, USA; (P.B.); (M.S.D.); (S.G.R.)
| | - Roberto Badaró
- SENAI Institute of Innovation (ISI) in Health Advanced Systems (CIMATEC ISI SAS), University Center SENAI/CIMATEC, Salvador 41650-010, Brazil; (K.V.S.H.); (L.M.d.S.F.); (L.A.B.M.); (L.P.C.d.S.A.); (V.P.C.R.); (M.B.P.S.); (R.B.)
| |
Collapse
|
6
|
Morales-Rubio R, Amador-Muñoz O, Rosas-Pérez I, Sánchez-Pérez Y, García-Cuéllar C, Segura-Medina P, Osornio-Vargas Á, De Vizcaya-Ruiz A. PM 2.5 induces airway hyperresponsiveness and inflammation via the AhR pathway in a sensitized Guinea pig asthma-like model. Toxicology 2021; 465:153026. [PMID: 34774659 DOI: 10.1016/j.tox.2021.153026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 01/09/2023]
Abstract
Exposure to fine particulate matter (PM2.5) induces airway inflammation and hyperreactivity that lead to asthma. The mechanisms involved are still under investigation. We investigated the effect of resveratrol (3,4',5-trihydroxystilbene) (RES) on airway hyperresponsiveness, inflammation and CYP1A1 protein expression (an aryl hydrocarbon receptor (AhR) target) induced by PM2.5 exposure in an allergic asthma experimental guinea pig model. The polyphenolic compound RES was used due to its antioxidant and anti-inflammatory properties and as an antagonist of the AhR; thus, providing mechanistic insights. Animals were sensitized with aluminum hydroxide and ovalbumin and exposed to filtered air or PM2.5. Exposure to PM2.5 was conducted using a whole-body chamber particle concentrator (5 h/day) for 15 days. Animals received saline solution or RES (10 mg/kg per day) orally for 21 days simultaneously to the OVA challenge or PM2.5 exposure. PM2.5 exposure (mean 433 ± 111 μg/m3 in the exposure chamber) in OVA challenged animals induced an asthma-like phenotype characterized by increased baseline lung resistance (Rrs) and central airway resistance (Rn) in response to acetylcholine (ACh) evaluated using a flexiVent system®. A parallel increase of pro-inflammatory cytokines (IL-6, IL-17, TNF-α and IFN-γ), inflammatory cells (eosinophils and neutrophils) in bronchoalveolar lavage fluid (BALF) and lung CYP1A1 increase also occurred. RES significantly inhibited airway hyperresponsiveness, inflammation, and CYP1A1 protein expression in the OVA-challenged PM2.5 exposed animals. In summary, with the use of RES we demonstrate that PM-induced airway hyperreactivity is modulated by the inflammatory response via the AhR pathway in an allergic asthma guinea pig model.
Collapse
|
7
|
Dhakal H, Kim MJ, Lee S, Choi YA, Kim N, Kwon TK, Khang D, Kim SH. Ursolic acid inhibits FcεRI-mediated mast cell activation and allergic inflammation. Int Immunopharmacol 2021; 99:107994. [PMID: 34435583 DOI: 10.1016/j.intimp.2021.107994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/14/2021] [Accepted: 07/14/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Mast cells are the primary cells that play a crucial role in the allergic diseases via secretion of diverse allergic mediators. Ursolic acid (UA) is a naturally occurring anti-inflammatory triterpenoid possessing various biological properties such as immune regulation, antioxidant, and anti-fibrotic. The aim of this study was to evaluate the effects of UA in FcεRI-mediated mast cell activation and allergic inflammation. METHODS In this study, mast cells were stimulated with immunoglobulin E (IgE) and the anti-allergic effects of UA were assessed by measuring the levels of allergic mediators. In vivo effects of UA were observed by generating passive cutaneous anaphylaxis (PCA) and active systemic anaphylaxis (ASA) in mouse model. RESULTS We found that UA inhibited the degranulation of mast cell by suppressing the intracellular calcium level in a concentration-dependent manner. UA inhibited the expression and the release of pro-inflammatory cytokines in mast cells. Anti-allergic effects of UA were demonstrated via suppression of FcεRI-mediated signaling molecules. In addition, UA inhibited the IgE-mediated PCA and ovalbumin-induced ASA reactions in a dose-dependent manner. CONCLUSIONS Based on these findings, we suggest that UA might have potential as a therapeutic candidate for the treatment of allergic inflammatory diseases via inhibition of FcεRI-mediated mast cell activation.
Collapse
Affiliation(s)
- Hima Dhakal
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Min-Jong Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Soyoung Lee
- Immunoregulatory Materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Young-Ae Choi
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Namkyung Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Dongwoo Khang
- Department of Physiology, School of Medicine, Gachon University, Incheon, Republic of Korea.
| | - Sang-Hyun Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
| |
Collapse
|
8
|
Lee H, Punt JA, Miller DC, Nagpal A, Smith CC, Sayeed Y, Patel J, Stojanovic MP, Popescu A, McCormick ZL. Do Corticosteroid Injections for the Treatment of Pain Influence the Efficacy of mRNA COVID-19 Vaccines? PAIN MEDICINE (MALDEN, MASS.) 2021; 22:994-1000. [PMID: 33605425 PMCID: PMC7928682 DOI: 10.1093/pm/pnab063] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
MYTH Corticosteroid injection for the treatment of pain and inflammation is known to decrease the efficacy of the messenger ribonucleic acid (mRNA) vaccines for coronavirus disease 2019 (COVID-19). FACT There is currently no direct evidence to suggest that a corticosteroid injection before or after the administration of an mRNA COVID-19 vaccine decreases the efficacy of the vaccine.However, based on the known timeline of hypothalamic-pituitary-adrenal (HPA) axis suppression following epidural and intraarticular corticosteroid injections, and the timeline of the reported peak efficacy of the Pfizer-BioNTech and Moderna vaccines, physicians should consider timing an elective corticosteroid injection such that it is administered no less than 2 weeks prior to a COVID-19 mRNA vaccine dose and no less than 1 week following a COVID-19 mRNA vaccine dose, whenever possible.
Collapse
Affiliation(s)
- Haewon Lee
- University of California, San Diego, Department of Orthopedic Surgery, San Diego, California, USA
| | - Jennifer A Punt
- University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania, USA
| | | | - Ameet Nagpal
- Department of Anesthesiology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Clark C Smith
- Columbia University Medical Center, Rehabilitation and Regenerative Medicine, New York, New York, USA
| | - Yusef Sayeed
- Uniformed Services University of the Health Sciences, Department of Physical Medicine and Rehabilitation, Department of Family Medicine, Eglin AFB, Florida, USA
| | - Jaymin Patel
- Emory University, Department of Orthopedics, Atlanta, Georgia, USA
| | - Milan P Stojanovic
- Anesthesiology, Critical Care and Pain Medicine Service, VA Boston Healthcare System, Harvard Medical School, Boston, Massachusetts, USA
| | - Adrian Popescu
- Hospital of University of Pennsylvania, Department of Physical Medicine and Rehabilitation, Philadelphia, Pennsylvania, USA
| | - Zachary L McCormick
- University of Utah, Division of Physical Medicine and Rehabilitation, Salt Lake City, Utah, USA
| |
Collapse
|
9
|
Antimicrobial nanomedicine for ocular bacterial and fungal infection. Drug Deliv Transl Res 2021; 11:1352-1375. [PMID: 33840082 DOI: 10.1007/s13346-021-00966-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/17/2021] [Indexed: 12/13/2022]
Abstract
Ocular infection induced by bacteria and fungi is a major cause of visual impairment and blindness. Topical administration of antibiotics remains the first-line treatment, as effective eradication of pathogens is the core of the anti-infection strategy. Whereas, eye drops lack efficiency and have relatively low bioavailability. Intraocular injection may cause concurrent ocular damage and secondary infection. In addition, antibiotic-based management can be limited by the low sensitivity to multidrug-resistant bacteria. Nanomedicine is proposed as a prospective, effective, and noninvasive platform to mediate ocular delivery and combat pathogen or even resistant strains. Nanomedicine can not only carry antimicrobial agents to fight against pathogens but also directly active microbicidal capability, killing pathogens. More importantly, by modification, nanomedicine can achieve enhanced residence time and release time on the cornea, and easy penetration through corneal tissues into anterior and posterior segments of the eye, thus improving the therapeutic effect for ocular infection. In this review, several categories of antimicrobial nanomedicine are systematically discussed, where the efficiency and possibility of further embellishment and improvement to adapt to clinical use are also investigated. All in all, novel antimicrobial nanomedicine provides potent and prospective ways to manage severe and refractory ocular infections.
Collapse
|
10
|
Han SM, Binia A, Godfrey KM, El-Heis S, Cutfield WS. Do Human Milk Oligosaccharides Protect Against Infant Atopic Disorders and Food Allergy? Nutrients 2020; 12:nu12103212. [PMID: 33096669 PMCID: PMC7589050 DOI: 10.3390/nu12103212] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/14/2020] [Accepted: 10/20/2020] [Indexed: 12/28/2022] Open
Abstract
Atopic disorders (AD), often coexistent with food allergy (FA), start developing in early life and have lifelong health consequences. Breastfeeding is thought to be protective against AD and FA, but the data are controversial, and mechanisms are not well understood. Human milk oligosaccharides (HMOs) are complex carbohydrates that are abundant in human milk. These are thought to contribute to the development of the infant immune system by (i) promoting healthy microbiome, (ii) inhibiting pathogen binding to gut mucosa and (iii) modulating the immune system. Differences in microbiome composition between allergic and healthy infants have been observed, regardless of breastfeeding history. To date, limited studies have examined the preventive effects of HMOs on AD and FA in infants and current data relies on observation studies as trials of varying HMO intake through randomising individuals to breastfeeding are unethical. There is evidence for beneficial effects of breastfeeding on lowering the risks of FA, eczema and asthma but there are inconsistencies amongst studies in the duration of breastfeeding, diagnostic criteria for AD and the age at which the outcome was assessed. Furthermore, current analytical methods primarily used today only allow detection of 16-20 major HMOs while more than 100 types have been identified. More large-scale longitudinal studies are required to investigate the role of HMO composition and the impact of changes over the lactation period in preventing AD and FA later in life.
Collapse
Affiliation(s)
- Soo Min Han
- Liggins Institute, The University of Auckland, Auckland 1023, New Zealand;
| | - Aristea Binia
- Nestlé Research, Société des Produits Nestlé SA, 1000 Lausanne, Switzerland;
| | - Keith M. Godfrey
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton SO17 1BJ, UK;
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton SO17 1BJ, UK;
| | - Sarah El-Heis
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton SO17 1BJ, UK;
| | - Wayne S. Cutfield
- Liggins Institute, The University of Auckland, Auckland 1023, New Zealand;
- A Better Start—National Science Challenge, Liggins Institute, The University of Auckland, Auckland 1023, New Zealand
- Correspondence: ; Tel.: +64-9-923-4476
| |
Collapse
|
11
|
Lee D, Park YH, Lee JE, Kim HS, Min KY, Jo MG, Kim HS, Choi WS, Kim YM. Dasatinib Inhibits Lyn and Fyn Src-Family Kinases in Mast Cells to Suppress Type I Hypersensitivity in Mice. Biomol Ther (Seoul) 2020; 28:456-464. [PMID: 32268657 PMCID: PMC7457176 DOI: 10.4062/biomolther.2020.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 12/21/2022] Open
Abstract
Mast cells (MCs) are systemically distributed and secrete several allergic mediators such as histamine and leukotrienes to cause type I hypersensitivity. Dasatinib is a type of anti-cancer agent and it has also been reported to inhibit human basophils. However, dasatinib has not been reported for its inhibitory effects on MCs or type I hypersensitivity in mice. In this study, we examined the inhibitory effect of dasatinib on MCs and MC-mediated allergic response in vitro and in vivo. in vitro, dasatinib inhibited the degranulation of MCs by antigen stimulation in a dose-dependent manner (IC50, ~34 nM for RBL-2H3 cells; ~52 nM for BMMCs) without any cytotoxicity. It also suppressed the secretion of inflammatory cytokines IL-4 and TNF-α by antigen stimulation. Furthermore, dasatinib inhibited MC-mediated passive cutaneous anaphylaxis (PCA) in mice (ED50, ~29 mg/kg). Notably, dasatinib significantly suppressed the degranulation of MCs in the ear tissue. As the mechanism of its effect, dasatinib inhibited the activation of Syk and Syk-mediated downstream signaling proteins, LAT, PLCγ1, and three typical MAP kinases (Erk1/2, JNK, and p38), which are essential for the activation of MCs. Interestingly, in vitro tyrosine kinase assay, dasatinib directly inhibited the activities of Lyn and Fyn, the upstream tyrosine kinases of Syk in MCs. Taken together, dasatinib suppresses MCs and PCA in vitro and in vivo through the inhibition of Lyn and Fyn Src-family kinases. Therefore, we suggest the possibility of repositioning the anti-cancer drug dasatinib as a treatment for various MC-mediated type I hypersensitive diseases.
Collapse
Affiliation(s)
- Dajeong Lee
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea
| | - Young Hwan Park
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea
| | - Ji Eon Lee
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea.,College of Pharmacy, Duksung Women's University, Seoul 01369, Republic of Korea
| | - Hyuk Soon Kim
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea
| | - Keun Young Min
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea
| | - Min Geun Jo
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea
| | - Hyung Sik Kim
- Division of Toxicology, College of Pharmacy, Sungkyunkwan University, Suwon 6419, Republic of Korea
| | - Wahn Soo Choi
- Department of Immunology, College of Medicine, Konkuk University, Chungju 27478, Republic of Korea
| | - Young Mi Kim
- College of Pharmacy, Duksung Women's University, Seoul 01369, Republic of Korea
| |
Collapse
|
12
|
Syed AP, Greulich F, Ansari SA, Uhlenhaut NH. Anti-inflammatory glucocorticoid action: genomic insights and emerging concepts. Curr Opin Pharmacol 2020; 53:35-44. [DOI: 10.1016/j.coph.2020.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 02/07/2023]
|
13
|
Liu T, Lai SY, Li WS, Jiang YM. Prevalence of food allergen and aeroallergen sensitization among children in Sichuan province. Medicine (Baltimore) 2020; 99:e21055. [PMID: 32629732 PMCID: PMC7337612 DOI: 10.1097/md.0000000000021055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Food allergen and aeroallergen sensitization are common allergic diseases worldwide, with widely varying estimates of prevalence in children. Our study investigated the characteristics of ingestion and inhalation allergy among children from Sichuan province in Southwest China, so as to get public awareness of these disorders.A total of 1722 children between 0 and 14 years' old were enrolled in this study. They were outpatients in the West China Second University Hospital during June 2019 to September 2019. Serum specific IgE specific to 10 types of food allergen and 10 types of aeroallergen were estimated. Nutrition indicators were tested by electrochemical luminescence.59.70% children were allergic to at least 1 allergen, comprising 24.90% to aeroallergen and 38.81% to food allergen, respectively, whereas 36.28% children were allergic to both aeroallergen and food allergen. Milk was the most common food allergen, and egg came in second place. With regard to aeroallergen, house dust mite held the maximum proportion (65.02%), whereas dust mite followed behind. Inhalation allergy was more commonly seen in boys than girls. Bronchitis was the most common symptom of both allergies. In addition, the highest incidence age for children to be sensitive to food allergen and aeroallergen were 0∼2 years' old and 3∼5 years' old, respectively. It is worth mentioning that there was no significant difference in nutritional status between children with or without allergic diseases.Our findings reveal that milk, egg, house dust mite, and dust mite are the most common allergens among children in Sichuan province. Boys are more susceptible to aeroallergen than girls. Furthermore, the prevalence of ingestion and inhalation allergy varies from different age groups, and has no correlation with nutritional status. In brief, the analysis of the pattern of food allergen and aeroallergen sensitization is invaluable to effective diagnosis and treatment of allergic diseases.
Collapse
Affiliation(s)
- Ting Liu
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education
- State Key Laboratory of Biotherapy and Cancer Center/National Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu, China
| | - Shu-yu Lai
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education
| | - Wen-sheng Li
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education
| | - Yong-mei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, and Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education
| |
Collapse
|
14
|
Li L, Zhang M, Cao Y, Ma P, Wei J, Tao L, Qian K. An LC-MS Method for Determination of Betamethasone in Tissue Engineering Skin and Application to Dermatopharmacokinetic Study. CURR PHARM ANAL 2019. [DOI: 10.2174/1573412914666180831101354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background and Objectives:Tissue engineering skin is a three-dimensional skin substitute cultured in the gas-liquid interface using the immortalized keratinocytes (HaCaT cells). In this study, the preliminary metabolism of betamethasone dipropionate by tissue engineering skin was studied and the pharmacokinetics methodology was established using betamethasone dipropionate gel as the target drug.Methods:The betamethasone dipropionate gel was applied on the tissue engineering skin after the skin was cultured. Then the medium (receiving liquid) and skin were taken on 0.25, 0.75, 1.75, 3, 5, 8, 12, 24, 36, 48 h time points. The betamethasone concentration in the medium and skin was determinated by the LC-MS method. Chromatographic analysis was conducted using isocratic elution on a C18 column (150 mm × 2.0 mm, 5 µm) in mobile phase consisting of methanol and water (70 : 30, v/v). The mobile phase was pumped at a flow rate of 0.2 mL/min.Results:This method exhibited linearity within the concentration range of 0. 1 to 50 µg /mL of betamethasone. The LLOQ was 0. 1 µg /mL. The intra- and inter-day precisions of betamethasone in the blank medium were all less than 10.69 % (RSD, %), while in the blank, skin homogenates were all less than 13.96 % (RSD, %). As a result, the betamethasone concentration in the medium and skin could both be detected, which suggested that betamethasone dipropionate could be metabolized to betamethasone through the tissue engineering skin.Conclusion:It was feasible to use tissue engineering skin as a model to study the dermatopharmacokinetics of topical betamethasone dipropionate gel. The research could build a foundation for the dermato-pharmacokinetic study approach.
Collapse
Affiliation(s)
- Lingjun Li
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| | - Mengli Zhang
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| | - Yuping Cao
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| | - Pengcheng Ma
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| | - Jun Wei
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| | - Lei Tao
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| | - Kun Qian
- Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 12, Jiangwangmiao Street, Nanjing, 210042, China
| |
Collapse
|
15
|
|
16
|
Nagaoka K, Ogino K, Ogino N, Ito T, Takemoto K, Ogino S, Seki Y, Hamada H, Fujikura Y. Human albumin augmented airway inflammation induced by PM2.5 in NC/Nga mice. ENVIRONMENTAL TOXICOLOGY 2019; 34:836-843. [PMID: 30953400 DOI: 10.1002/tox.22751] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/18/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
The synergic allergic inflammatory effects of particulate matter (PM) 2.5 and human albumin were investigated in NC/Nga mice, which are hypersensitive to mite allergens. PM2.5 or PM2.5 plus human albumin with aluminum oxide was injected twice intraperitoneally for sensitization. After 7 days, PM2.5 or PM2.5 plus human albumin was administered five times intranasally to mice for further sensitization. Subsequently, PM2.5 was administered as a challenge on the 11th day. On the 12th day, mice were examined for airway hyperresponsiveness (AHR), bronchoalveolar lavage fluid (BALF) cell count, mRNA expression of Th1 , Th2 cytokines, chemokines, and mucus proteins (MUC5AC and MUC5B) in the lung tissue and histopathology. Although PM2.5 or human albumin alone did not induce allergic airway inflammation, simultaneous inoculation of PM2.5 and human albumin-induced airway inflammation showing increase in AHR, total BALF cell numbers, mRNA levels of IL-13, eotaxin 1, eotaxin 2, and MUC5AC, and anti-IG against human serum albumin. Inflammation was observed around the bronchus in PM2.5 plus human albumin-induced lungs. These results demonstrate that PM2.5 can induce allergic airway inflammation through the synergistic action with human albumin in NC/Nga mice.
Collapse
Affiliation(s)
- Kenjiro Nagaoka
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Keiki Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Noriyoshi Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
- Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Tatsuo Ito
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Kei Takemoto
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Shihona Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
- First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Yuka Seki
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, Okayama, Japan
| | - Hiroki Hamada
- Department of Life Science, Okayama University of Science, Okayama, Japan
| | - Yoshihisa Fujikura
- Division of Morphological Analysis, Department of Anatomy, Biology and Medicine, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| |
Collapse
|
17
|
Li L, Zhang M, Ma P, Qian K. Development of a simple method for simultaneous determination of tazarotene and betamethasone dipropionate and their metabolites using LC-MS method and its application to dermatopharmacokinetic study. Biomed Chromatogr 2019; 33:e4557. [PMID: 30990899 DOI: 10.1002/bmc.4557] [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: 01/06/2019] [Revised: 03/07/2019] [Accepted: 04/11/2019] [Indexed: 11/11/2022]
Abstract
In our study, a method for the determination for tazarotene and betamethasone dipropionate in human tissue-engineered skin was established. Tazarotene gel, betamethasone dipropionate cream or a combination cream was administered to the skin. Then the skin was taken off at 0.25, 0.75, 1.75, 3, 5, 8, 12, 24, 36, 48 h time points after the residual drug was removed. The concentrations of tazarotene, betamethasone dipropionate and their major metabolites in skin were determined by LC-MS. Tazarotene and tazarotenic acid were detected in the concentration range of 2-200 μg/mL with an LLOQ of 2 μg/mL. Betamethasone dipropionate was detected in the concentration range 0.5-300 μg/mL with an LLOQ of 0.5 μg/mL, and betamethasone was detected at 2-200 μg/mL with an LLOQ of 2 μg/mL. The intra- and inter-day precisions of the four analytes in the skin homogenate were all <15% (RSD, %). The results showed that tazarotene could be metabolized to tazarotenic acid and betamethasone dipropionate could be metabolized to betamethasone in tissue-engineered skin. The results also revealed that this method was suitable for the simultaneous determination of tazarotene, betamethasone dipropionate and their metabolites in tissue-engineered skin.
Collapse
Affiliation(s)
- Lingjun Li
- Chinese Academy of Medical Sciences, Institute of Dermatology, China
| | - Mengli Zhang
- Chinese Academy of Medical Sciences, Institute of Dermatology, China
| | | | - Kun Qian
- Chinese Academy of Medical Sciences, Institute of Dermatology, China
| |
Collapse
|
18
|
Géhin M, Lott D, Farine H, Issac M, Strasser D, Sidharta P, Dingemanse J. Pharmacokinetics, pharmacodynamics, tolerability and prediction of clinically effective dose of ACT‐774312: A novel CRTH2 antagonist. Basic Clin Pharmacol Toxicol 2019; 124:711-721. [DOI: 10.1111/bcpt.13197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 12/14/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Martine Géhin
- Department of Clinical Pharmacology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| | - Dominik Lott
- Department of Clinical Pharmacology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| | - Hervé Farine
- Department of Translational Science Biology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| | - Milena Issac
- Department of Clinical Pharmacology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| | - Daniel Strasser
- Department of Translational Science Biology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| | - Patricia Sidharta
- Department of Clinical Pharmacology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| | - Jasper Dingemanse
- Department of Clinical Pharmacology Idorsia Pharmaceuticals Ltd Allschwil Switzerland
| |
Collapse
|
19
|
Single-molecule force spectroscopy reveals folding steps associated with hormone binding and activation of the glucocorticoid receptor. Proc Natl Acad Sci U S A 2018; 115:11688-11693. [PMID: 30366952 DOI: 10.1073/pnas.1807618115] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The glucocorticoid receptor (GR) is a prominent nuclear receptor linked to a variety of diseases and an important drug target. Binding of hormone to its ligand binding domain (GR-LBD) is the key activation step to induce signaling. This process is tightly regulated by the molecular chaperones Hsp70 and Hsp90 in vivo. Despite its importance, little is known about GR-LBD folding, the ligand binding pathway, or the requirement for chaperone regulation. In this study, we have used single-molecule force spectroscopy by optical tweezers to unravel the dynamics of the complete pathway of folding and hormone binding of GR-LBD. We identified a "lid" structure whose opening and closing is tightly coupled to hormone binding. This lid is located at the N terminus without direct contacts to the hormone. Under mechanical load, apo-GR-LBD folds stably and readily without the need of chaperones with a folding free energy of [Formula: see text] The folding pathway is largely independent of the presence of hormone. Hormone binds only in the last step and lid closure adds an additional [Formula: see text] of free energy, drastically increasing the affinity. However, mechanical double-jump experiments reveal that, at zero force, GR-LBD folding is severely hampered by misfolding, slowing it to less than 1·s-1 From the force dependence of the folding rates, we conclude that the misfolding occurs late in the folding pathway. These features are important cornerstones for understanding GR activation and its tight regulation by chaperones.
Collapse
|
20
|
Dexamethasone does not prevent hydrocephalus after severe intraventricular hemorrhage in newborn rats. PLoS One 2018; 13:e0206306. [PMID: 30359428 PMCID: PMC6201923 DOI: 10.1371/journal.pone.0206306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 10/10/2018] [Indexed: 11/20/2022] Open
Abstract
The aim of this study was done to determine whether dexamethasone treatment prevents posthemorrhagic hydrocephalus (PHH) development and attenuates brain damage after severe IVH in newborn rats. Severe IVH was induced by injecting; 100 μL of blood into each lateral ventricle of postnatal day 4 (P4) Sprague-Dawley rats. Dexamethasone was injected intraperitoneally into rat pups at a dose of 0.5 mg/kg, 0.3 mg/kg, and 0.1 mg/kg on P5, P6, and P7, respectively. Serial brain magnetic resonance imaging and behavioral function tests, such as the negative geotaxis test and the rotarod test, were performed. On P32, brain tissues were obtained for histological and biochemical analyses. Dexamethasone treatment significantly improved the severe IVH-induced increase in the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end-labeling-positive cells, glial fibrillary acidic protein-positive astrocytes and ED-1 positive microglia, and the decrease in myelin basic protein. IVH reduced a survival of 71%, that showed a tendency to improve to 86% with dexamethasone treatment, although the result was not statistically significant. However, dexamethasone failed to prevent the progression to PHH and did not significantly improve impaired behavioral tests. Similarly, dexamethasone did not decrease the level of inflammatory cytokines such as interleukin (IL) -1α and ß, IL-6, and tumor necrosis factor-α after severe IVH. Despite its some neuroprotective effects, dexamethasone failed to improve the progress of PHH and impaired behavioral tests after severe IVH.
Collapse
|
21
|
Vieira GC, Gadelha FA, Pereira RF, Ferreira LK, Barbosa-Filho JM, Bozza PT, Piuvezam MR. Warifteine, an alkaloid of Cissampelos sympodialis , modulates allergic profile in a chronic allergic rhinitis model. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2017.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
22
|
Klaßen C, Karabinskaya A, Dejager L, Vettorazzi S, Van Moorleghem J, Lühder F, Meijsing SH, Tuckermann JP, Bohnenberger H, Libert C, Reichardt HM. Airway Epithelial Cells Are Crucial Targets of Glucocorticoids in a Mouse Model of Allergic Asthma. THE JOURNAL OF IMMUNOLOGY 2017; 199:48-61. [PMID: 28515280 DOI: 10.4049/jimmunol.1601691] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 04/25/2017] [Indexed: 11/19/2022]
Abstract
Although glucocorticoids (GCs) are a mainstay in the clinical management of asthma, the target cells that mediate their therapeutic effects are unknown. Contrary to our expectation, we found that GC receptor (GR) expression in immune cells was dispensable for successful therapy of allergic airway inflammation (AAI) with dexamethasone. Instead, GC treatment was compromised in mice expressing a defective GR in the nonhematopoietic compartment or selectively lacking the GR in airway epithelial cells. Further, we found that an intact GR dimerization interface was a prerequisite for the suppression of AAI and airway hyperresponsiveness by GCs. Our observation that the ability of dexamethasone to modulate gene expression in airway epithelial cells coincided with its potency to resolve AAI supports a crucial role for transcriptional regulation by the GR in this cell type. Taken together, we identified an unknown mode of GC action in the treatment of allergic asthma that might help to develop more specific therapies in the future.
Collapse
Affiliation(s)
- Carina Klaßen
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany
| | - Anna Karabinskaya
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany
| | - Lien Dejager
- Inflammation Research Center, Flanders Institute for Biotechnology, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, University of Ghent, 9052 Ghent, Belgium
| | - Sabine Vettorazzi
- Institute of Comparative Endocrinology, University of Ulm, 89081 Ulm, Germany
| | | | - Fred Lühder
- Institute for Multiple Sclerosis Research and Neuroimmunology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | | | - Jan P Tuckermann
- Institute of Comparative Endocrinology, University of Ulm, 89081 Ulm, Germany
| | - Hanibal Bohnenberger
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Claude Libert
- Inflammation Research Center, Flanders Institute for Biotechnology, 9052 Ghent, Belgium.,Department of Biomedical Molecular Biology, University of Ghent, 9052 Ghent, Belgium
| | - Holger M Reichardt
- Institute for Cellular and Molecular Immunology, University Medical Center Göttingen, 37073 Göttingen, Germany;
| |
Collapse
|
23
|
Costa Carvalho JL, de Brito AA, de Oliveira APL, de Castro Faria Neto HC, Pereira TM, de Carvalho RA, Anatriello E, Aimbire F. The chemokines secretion and the oxidative stress are targets of low-level laser therapy in allergic lung inflammation. JOURNAL OF BIOPHOTONICS 2016; 9:1208-1221. [PMID: 27649282 DOI: 10.1002/jbio.201600061] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/23/2016] [Accepted: 07/24/2016] [Indexed: 06/06/2023]
Abstract
Recent studies show that low-level laser therapy (LLLT) has an important anti-inflammatory action in acute lung inflammation. The present work explored if laser therapy is able to antagonize eosinophils and allergic inflammation induced by oxidative stress in Balb/c mice. Forty-eight hours after challenge, the leukocyte counting, ROS and nitrite/nitrate level, RANTES, CCL3, CCL8 as well as eotaxins were measured in the bronchoalveolar lavage fluid (BALF) of laser-treated mice or not. Into the lung, some chemokines receptors, the iNOS activity and mRNA expression, and the activities of superoxide dismutase (SOD), catalase, gluthatione, NADPH oxidase activities and thiobarbituric acid reactive species (T-Bars) were measured. Laser-treated allergic mice presented reduction of both the ICAM-1 and eosinophil in the lungs. RANTES, CCL8, CCL3 and eotaxins were reduced in BALF of laser-treated allergic mice. In allergic mice lung LLLT decreased the CCR1 and CCR3 and restored the oxidative stress balance as well. Laser decreased the lipidic peroxidation in allergic mice lung as much as increased SOD, GPx and GR. It shows that LLLT on allergic lung inflammation involves leukocyte-attractant chemokines and endogenous antioxidant. Based on results, LLLT may ultimately become a non- invasive option in allergic lung disease treatment. The top figure illustrates the laser decreasing the eosinophils migration into BALF and the bottom figure shows the laser upregulating the expression of heme-oxygenase (anti-oxidant enzyme) in lung tissue anti-oxidant.
Collapse
Affiliation(s)
- Jorge Luis Costa Carvalho
- Department of Science and Technology, Federal University of São Paulo - UNIFESP, Rua Talim, 330 - Vila Nair, PO Box 12231-280, São José dos Campos, São Paulo, SP, Brazil
| | - Auriléia Aparecida de Brito
- Laboratory of Pulmonary and Exercise Immunology-LABPEI, Nove de Julho University (UNINOVE), São Paulo, SP, Brazil
| | | | | | - Thiago Martini Pereira
- Laboratory of Pulmonary and Exercise Immunology-LABPEI, Nove de Julho University (UNINOVE), São Paulo, SP, Brazil
| | - Regiane Albertini de Carvalho
- Department of Science and Technology, Federal University of São Paulo - UNIFESP, Rua Talim, 330 - Vila Nair, PO Box 12231-280, São José dos Campos, São Paulo, SP, Brazil
| | - Elen Anatriello
- Department of Science and Technology, Federal University of São Paulo - UNIFESP, Rua Talim, 330 - Vila Nair, PO Box 12231-280, São José dos Campos, São Paulo, SP, Brazil
| | - Flávio Aimbire
- Department of Science and Technology, Federal University of São Paulo - UNIFESP, Rua Talim, 330 - Vila Nair, PO Box 12231-280, São José dos Campos, São Paulo, SP, Brazil
| |
Collapse
|
24
|
Gál B, Bucher C, Burns NZ. Chiral Alkyl Halides: Underexplored Motifs in Medicine. Mar Drugs 2016; 14:md14110206. [PMID: 27827902 PMCID: PMC5128749 DOI: 10.3390/md14110206] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 10/21/2016] [Accepted: 10/31/2016] [Indexed: 11/21/2022] Open
Abstract
While alkyl halides are valuable intermediates in synthetic organic chemistry, their use as bioactive motifs in drug discovery and medicinal chemistry is rare in comparison. This is likely attributable to the common misconception that these compounds are merely non-specific alkylators in biological systems. A number of chlorinated compounds in the pharmaceutical and food industries, as well as a growing number of halogenated marine natural products showing unique bioactivity, illustrate the role that chiral alkyl halides can play in drug discovery. Through a series of case studies, we demonstrate in this review that these motifs can indeed be stable under physiological conditions, and that halogenation can enhance bioactivity through both steric and electronic effects. Our hope is that, by placing such compounds in the minds of the chemical community, they may gain more traction in drug discovery and inspire more synthetic chemists to develop methods for selective halogenation.
Collapse
Affiliation(s)
- Bálint Gál
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA 94305, USA.
| | - Cyril Bucher
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA 94305, USA.
| | - Noah Z Burns
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA 94305, USA.
| |
Collapse
|
25
|
Asaduzzaman M, Nadeem A, Arizmendi N, Davidson C, Nichols HL, Abel M, Ionescu LI, Puttagunta L, Thebaud B, Gordon J, DeFea K, Hollenberg MD, Vliagoftis H. Functional inhibition of PAR2 alleviates allergen-induced airway hyperresponsiveness and inflammation. Clin Exp Allergy 2016; 45:1844-55. [PMID: 26312432 DOI: 10.1111/cea.12628] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 05/28/2015] [Accepted: 06/07/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND Proteinase-activated receptor 2 (PAR2 ) is a G protein-coupled receptor activated by trypsin-like serine proteinases. PAR2 activation has been associated with inflammation including allergic airway inflammation. We have also shown that PAR2 activation in the airways leads to allergic sensitization. The exact contribution of PAR2 in the development of eosinophilic inflammation and airway hyperresponsiveness (AHR) in sensitized individuals is not clear. OBJECTIVE To investigate whether functional inhibition of PAR2 during allergen challenge of allergic mice would inhibit allergen-induced AHR and inflammation in mouse models of asthma. METHODS Mice were sensitized and challenged with ovalbumin (OVA) or cockroach extract (CE). To investigate the role of PAR2 in the development of AHR and airway inflammation, we administered blocking anti-PAR2 antibodies, or a cell permeable peptide inhibitor of PAR2 signalling, pepducin, i.n. before allergen challenges and then assessed AHR and airway inflammation. RESULTS Administration of anti-PAR2 antibodies significantly inhibited OVA- and CE-induced AHR and airway inflammation. In particular, two anti-PAR2 antibodies, the monoclonal SAM-11 and polyclonal B5, inhibited AHR, airway eosinophilia, the increase of cytokines in the lung tissue and antigen-specific T cell proliferation, but had no effect on antigen-specific IgG and IgE levels. Pepducin was also effective in inhibiting AHR and airway inflammation in an OVA model of allergic airway inflammation. CONCLUSIONS AND CLINICAL RELEVANCE Functional blockade of PAR2 in the airways during allergen challenge improves allergen-induced AHR and inflammation in mice. Therefore, topical PAR2 blockade in the airways, through anti-PAR2 antibodies or molecules that interrupt PAR2 signalling, has the potential to be used as a therapeutic option in allergic asthma.
Collapse
Affiliation(s)
- M Asaduzzaman
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - A Nadeem
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - N Arizmendi
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - C Davidson
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - H L Nichols
- Division of Biomedical Sciences and Cell, Molecular and Developmental Biology, University of California, Riverside, CA, USA
| | - M Abel
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - L I Ionescu
- Department of Physiology, Women and Children Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - L Puttagunta
- Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada
| | - B Thebaud
- Department of Physiology, Women and Children Health Research Institute, University of Alberta, Edmonton, AB, Canada
| | - J Gordon
- Immunology Research Group, University of Saskatchewan, Saskatoon, SK, Canada
| | - K DeFea
- Division of Biomedical Sciences and Cell, Molecular and Developmental Biology, University of California, Riverside, CA, USA
| | - M D Hollenberg
- Department of Pharmacology and Therapeutics, University of Calgary, Calgary, AB, Canada
| | - H Vliagoftis
- Pulmonary Research Group, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| |
Collapse
|
26
|
Hossny E, Rosario N, Lee BW, Singh M, El-Ghoneimy D, SOH JY, Le Souef P. The use of inhaled corticosteroids in pediatric asthma: update. World Allergy Organ J 2016; 9:26. [PMID: 27551328 PMCID: PMC4982274 DOI: 10.1186/s40413-016-0117-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 07/21/2016] [Indexed: 02/07/2023] Open
Abstract
Despite the availability of several formulations of inhaled corticosteroids (ICS) and delivery devices for treatment of childhood asthma and despite the development of evidence-based guidelines, childhood asthma control remains suboptimal. Improving uptake of asthma management plans, both by families and practitioners, is needed. Adherence to daily ICS therapy is a key determinant of asthma control and this mandates that asthma education follow a repetitive pattern and involve literal explanation and physical demonstration of the optimal use of inhaler devices. The potential adverse effects of ICS need to be weighed against the benefit of these drugs to control persistent asthma especially that its safety profile is markedly better than oral glucocorticoids. This article reviews the key mechanisms of inhaled corticosteroid action; recommendations on dosage and therapeutic regimens; potential optimization of effectiveness by addressing inhaler technique and adherence to therapy; and updated knowledge on the real magnitude of adverse events.
Collapse
Affiliation(s)
- Elham Hossny
- Pediatric Allergy and Immunology Unit, Children’s Hospital, Ain Shams University, Cairo, 11566 Egypt
| | | | - Bee Wah Lee
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Meenu Singh
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Dalia El-Ghoneimy
- Pediatric Allergy and Immunology Unit, Children’s Hospital, Ain Shams University, Cairo, 11566 Egypt
| | - Jian Yi SOH
- Khoo Teck Puat-National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Peter Le Souef
- Winthrop Professor of Paediatrics & Child Health, School of Paediatrics & Child Health, University of Western Australia, Crawley, Australia
| |
Collapse
|
27
|
Menon R, Papaconstantinou J. p38 Mitogen activated protein kinase (MAPK): a new therapeutic target for reducing the risk of adverse pregnancy outcomes. Expert Opin Ther Targets 2016; 20:1397-1412. [PMID: 27459026 DOI: 10.1080/14728222.2016.1216980] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Spontaneous preterm birth (PTB) and preterm premature rupture of the membranes (pPROM) remain as a major clinical and therapeutic problem for intervention and management. Current strategies, based on our knowledge of pathways of preterm labor, have only been effective, in part, due to major gaps in our existing knowledge of risks and risk specific pathways. Areas covered: Recent literature has identified physiologic aging of fetal tissues as a potential mechanistic feature of normal parturition. This process is affected by telomere dependent and p38 mitogen activated protein kinase (MAPK) induced senescence activation. Pregnancy associated risk factors can cause pathologic activation of this pathway that can cause oxidative stress induced p38 MAPK activation leading to senescence and premature aging of fetal tissues. Premature aging is associated with sterile inflammation capable of triggering preterm labor or preterm premature rupture of membranes. Preterm activation of p38MAPK can be considered as a key contributor to adverse pregnancies. Expert opinion: This review considers p38MAPK activation as a potential target for therapeutic interventions to prevent adverse pregnancy outcomes mediated by stress factors. In this review, we propose multiple strategies to prevent p38MAPK activation.
Collapse
Affiliation(s)
- Ramkumar Menon
- a Division of Maternal-Fetal Medicine and Perinatal Research, Department of Obstetrics and Gynecology , The University of Texas Medical Branch at Galveston , Galveston , TX , USA
| | - John Papaconstantinou
- b Department of Biochemistry and Molecular Biology , The University of Texas Medical Branch at Galveston , Galveston , TX , USA
| |
Collapse
|
28
|
Oh CT, Kwon TR, Seok J, Choi EJ, Kim SR, Jang YJ, Mun SK, Kim CW, Lee S, Lee J, Kim MN, Choi SY, Kim BJ. Effect of a 308-nm excimer laser on atopic dermatitis-like skin lesions in NC/Nga mice. Lasers Surg Med 2016; 48:629-37. [PMID: 27075746 DOI: 10.1002/lsm.22524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2016] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND OBJECTIVE Atopic dermatitis (AD) is a common inflammatory skin disease that can affect all age groups. It has a relapsing course, which dramatically affects the quality of life of patients. A 308-nm excimer laser has been reported to be a safe and effective treatment for inflammatory skin diseases, although the range of potential application has not been fully explored. The purpose of this study was to evaluate the therapeutic effects of a 308-nm laser on AD-like skin lesions in NC/Nga mice. STUDY DESIGN/MATERIALS AND METHODS Dermatophagoides farinae-exposed NC/Nga mice with a clinical score of 12 were treated with either a 308-nm excimer laser or narrowband-UVB (NB-UVB). The effects of the 308-nm excimer laser were evaluated by dermatitis scores, skin histology, skin barrier function, and immunological parameters, including IgE and Th2-mediated cytokines. RESULTS The 308-nm excimer laser significantly reduced the severity of skin lesions and decreased the total serum levels of IgE and Th2-mediated cytokines. The excimer laser also significantly reduced the inflammatory cellular infiltrate into AD-induced skin lesions. Moreover, treatment with the 308-nm excimer laser led to recovery of skin barrier function in AD-induced skin lesions. CONCLUSION The 308-nm excimer laser can be considered a valid and safe therapeutic option for the treatment of localized AD. Lasers Surg. Med. 48:629-637, 2016. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Chang Taek Oh
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Tae-Rin Kwon
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Joon Seok
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Eun Ja Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Soon Re Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Yu-Jin Jang
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| | - Seog Kyun Mun
- Department of Otorhinolaryngology-Head and Neck Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Chan Woong Kim
- Department of Emergency Medicine, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sungeun Lee
- Department of International Business, Cuteck Korea Inc., Busan, Korea
| | - Jongmin Lee
- Department of International Business, Cuteck Korea Inc., Busan, Korea
| | - Myeung Nam Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sun Young Choi
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Beom Joon Kim
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.,Department of Medicine, Graduate School, Chung-Ang University, Seoul, Korea
| |
Collapse
|
29
|
Schoch GA, Sammito M, Millán C, Usón I, Rudolph MG. Structure of a 13-fold superhelix (almost) determined from first principles. IUCRJ 2015; 2:177-87. [PMID: 25866655 PMCID: PMC4392412 DOI: 10.1107/s2052252515000238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Accepted: 01/07/2015] [Indexed: 06/04/2023]
Abstract
Nuclear hormone receptors are cytoplasm-based transcription factors that bind a ligand, translate to the nucleus and initiate gene transcription in complex with a co-activator such as TIF2 (transcriptional intermediary factor 2). For structural studies the co-activator is usually mimicked by a peptide of circa 13 residues, which for the largest part forms an α-helix when bound to the receptor. The aim was to co-crystallize the glucocorticoid receptor in complex with a ligand and the TIF2 co-activator peptide. The 1.82 Å resolution diffraction data obtained from the crystal could not be phased by molecular replacement using the known receptor structures. HPLC analysis of the crystals revealed the absence of the receptor and indicated that only the co-activator peptide was present. The self-rotation function displayed 13-fold rotational symmetry, which initiated an exhaustive but unsuccessful molecular-replacement approach using motifs of 13-fold symmetry such as α- and β-barrels in various geometries. The structure was ultimately determined by using a single α-helix and the software ARCIMBOLDO, which assembles fragments placed by PHASER before using them as seeds for density modification model building in SHELXE. Systematic variation of the helix length revealed upper and lower size limits for successful structure determination. A beautiful but unanticipated structure was obtained that forms superhelices with left-handed twist throughout the crystal, stabilized by ligand interactions. Together with the increasing diversity of structural elements in the Protein Data Bank the results from TIF2 confirm the potential of fragment-based molecular replacement to significantly accelerate the phasing step for native diffraction data at around 2 Å resolution.
Collapse
Affiliation(s)
- Guillaume A. Schoch
- Molecular Design and Chemical Biology, F. Hoffmann-La Roche Ltd, Grenzacherstrasse 124, 4070 Basel, Switzerland
| | - Massimo Sammito
- Instituto de Biología Molecular de Barcelona (IBMB), CSIC, Barcelona Science Park, Baldiri Reixach 15, 08028 Barcelona, Spain
| | - Claudia Millán
- Instituto de Biología Molecular de Barcelona (IBMB), CSIC, Barcelona Science Park, Baldiri Reixach 15, 08028 Barcelona, Spain
| | - Isabel Usón
- Instituto de Biología Molecular de Barcelona (IBMB), CSIC, Barcelona Science Park, Baldiri Reixach 15, 08028 Barcelona, Spain
- Institucio Catalana de Recerca i Estudis Avançats, Passeig Lluis Companys, 23, 08010 Barcelona, Spain
| | - Markus G. Rudolph
- Molecular Design and Chemical Biology, F. Hoffmann-La Roche Ltd, Grenzacherstrasse 124, 4070 Basel, Switzerland
| |
Collapse
|
30
|
Cechin SR, Buchwald P. Effects of representative glucocorticoids on TNFα- and CD40L-induced NF-κB activation in sensor cells. Steroids 2014; 85:36-43. [PMID: 24747770 PMCID: PMC4049353 DOI: 10.1016/j.steroids.2014.04.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2013] [Revised: 03/15/2014] [Accepted: 04/03/2014] [Indexed: 11/28/2022]
Abstract
Glucocorticoids are an important class of anti-inflammatory/immunosuppressive drugs. A crucial part of their anti-inflammatory action results from their ability to repress proinflammatory transcription factors such as nuclear factor-κB (NF-κB) and activator protein-1 (AP-1) upon binding to the glucocorticoid receptor (GR). Accordingly, sensor cells quantifying their effect on inflammatory signal-induced NF-κB activation can provide useful information regarding their potencies as well as their transrepression abilities. Here, we report results obtained on their effect in suppressing both the TNFα- and the CD40L-induced activation of NF-κB in sensor cells that contain an NF-κB-inducible SEAP construct. In these cells, we confirmed concentration-dependent NF-κB activation for both TNFα and CD40L at low nanomolar concentrations (EC50). Glucocorticoids tested included hydrocortisone, prednisolone, dexamethasone, loteprednol etabonate, triamcinolone acetonide, beclomethasone dipropionate, and clobetasol propionate. They all caused significant, but only partial inhibition of these activations in concentration-dependent manners that could be well described by sigmoid response-functions. Despite the limitations of only partial maximum inhibitions, this cell-based assay could be used to quantitate the suppressing ability of glucocorticoids (transrepression potency) on the expression of proinflammatory transcription factors caused by two different cytokines in parallel both in a detailed, full dose-response format as well as in a simpler single-dose format. Whereas inhibitory potencies obtained in the TNF assay correlated well with consensus glucocorticoid potencies (receptor-binding affinities, Kd, RBA, at the GR) for all compounds, the non-halogenated steroids (hydrocortisone, prednisolone, and loteprednol etabonate) were about an order of magnitude more potent than expected in the CD40 assay in this system.
Collapse
Affiliation(s)
- Sirlene R Cechin
- Diabetes Research Institute, Miller School of Medicine, University of Miami, 1450 NW 10 Ave (R-134), Miami, FL 33136, USA
| | - Peter Buchwald
- Diabetes Research Institute, Miller School of Medicine, University of Miami, 1450 NW 10 Ave (R-134), Miami, FL 33136, USA; Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, 1600 NW 10 Ave (R-189), Miami, FL 33136, USA.
| |
Collapse
|
31
|
Ogino K, Takahashi N, Kubo M, Takeuchi A, Nakagiri M, Fujikura Y. Inflammatory airway responses by nasal inoculation of suspended particulate matter in NC/Nga mice. ENVIRONMENTAL TOXICOLOGY 2014; 29:642-654. [PMID: 22778050 DOI: 10.1002/tox.21791] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2011] [Revised: 06/04/2012] [Accepted: 06/10/2012] [Indexed: 06/01/2023]
Abstract
To evaluate the allergic effect of airborne particulate matter (PM) on the airway, separated soluble supernatant (Sup) and insoluble precipitate (Pre) in suspended PM were inoculated into NC/Nga mice with a high sensitivity for mite allergens. Sup, Pre, or both Sup and Pre with or without pronase treatment were inoculated via the nasal route five times for sensitization and a challenge inoculation on the 11th day in NC/Nga mice. On the 14th day, mice were examined for airway hyperresponsiveness (AHR), bronchoalveolar lavage fluid (BALF) cell count, mRNA expression of Th1 and Th2 cytokines in the lung tissue, and histopathology. Synergistic effects of Sup and Pre were observed as increases in AHR and a histopathological change of Periodic acid-Schiff (PAS) staining. Increases in neutrophils, macrophages, and lymphocytes of BALF cells were dependent on Pre. The expression of IL-4 mRNA was increased by Sup, and those of IL-5 mRNA and Il-13 mRNA was increased by Sup and Pre. Augmented AHR, mRNA expression of IL-4, peribronchial inflammation, and PAS staining by Sup plus Pre were attenuated by treatment of Sup with pronase to digest proteins. These results suggest that some proteins of ambient PM may be important environmental factors for AHR and airway inflammation with the aid of insoluble particulates, although some soluble factors such as endotoxins cannot be ruled out.
Collapse
Affiliation(s)
- Keiki Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1, Shikata-cho, Kita-ku, Okayama, Japan
| | | | | | | | | | | |
Collapse
|
32
|
Kwon TR, Mun SK, Oh CT, Hong H, Choi YS, Kim BJ, Kim BJ. Therapeutic Effects of Full Spectrum Light on the Development of Atopic Dermatitis-like Lesions in NC/Nga Mice. Photochem Photobiol 2014; 90:1160-9. [DOI: 10.1111/php.12284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 04/18/2014] [Indexed: 01/29/2023]
Affiliation(s)
- Tae-Rin Kwon
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Seog Kyun Mun
- Department of Otolaryngology Head and Neck Surgery; Chung-Ang University College of Medicine; Seoul Korea
| | - Chang Taek Oh
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Hyuckki Hong
- Medical IT Convergence Research Center; Korea Electronics Technology Institute; Gyeonggi-do Korea
| | - Yeon Shik Choi
- Medical IT Convergence Research Center; Korea Electronics Technology Institute; Gyeonggi-do Korea
| | | | - Beom Joon Kim
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| |
Collapse
|
33
|
Ogino K, Zhang R, Takahashi H, Takemoto K, Kubo M, Murakami I, Wang DH, Fujikura Y. Allergic airway inflammation by nasal inoculation of particulate matter (PM2.5) in NC/Nga mice. PLoS One 2014; 9:e92710. [PMID: 24671176 PMCID: PMC3966822 DOI: 10.1371/journal.pone.0092710] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 02/25/2014] [Indexed: 01/01/2023] Open
Abstract
To evaluate the effect of airborne particulate matter 2.5 (PM2.5) in winter on airway inflammation, water-soluble supernatant (Sup) and water-insoluble precipitate (Pre) in PM2.5 were inoculated in NC/Nga mice with high sensitivity to mite allergens. Sup with aluminum oxide was injected intraperitoneally for sensitization. Five days later, Sup, Pre or both Sup and Pre were inoculated via the nasal route five times for more sensitization and a challenge inoculation on the 11th day in NC/Nga mice. On the 12th day, mice were examined for airway hyperresponsiveness (AHR), BALF cell count and IL-1β concentration, mRNA expression of Th1 and Th2 cytokines, chemokines such as eotaxin 1 and eotaxin 2, inflammasomal complex molecules such as IL-1β, caspase 1 and the nucleotide-binding domain and leucine-rich repeat protein 3 (NLRP3) in lung tissue as well as histopathology. The synergistic effect of Sup and Pre was observed in terms of increases in AHR, BALF cells, the mRNA expression of IL-13, eotaxin1 and IL-1β, and the IL-1β concentration in BALF. Intracellular deposits of insoluble particulates were observed in macrophages around inflammatory granulation of the mouse group treated with Sup and Pre. These results suggest that PM2.5 can induce airway hyperresponsiveness in mice with genetically high sensitivity to mite allergens by an inflammasome-associated mechanism and synergistic action of insoluble particulates and soluble components.
Collapse
Affiliation(s)
- Keiki Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- * E-mail:
| | - Ran Zhang
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hidekazu Takahashi
- Department of Public Health, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kei Takemoto
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masayuki Kubo
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ikuo Murakami
- Third Institute of New Drug Discovery, Otsuka Pharmaceutical Co., Ltd., 463-10 Kagasuno, Kawauchi-cho, Tokushima, Japan
| | - Da-Hong Wang
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshihisa Fujikura
- Department of Molecular Anatomy, Oita University Faculty of Medicine, 1–1, Idaigaoka, Hasama-machi, Yufu, Oita, Japan
| |
Collapse
|
34
|
Low-level laser therapy inhibits bronchoconstriction, Th2 inflammation and airway remodeling in allergic asthma. Respir Physiol Neurobiol 2014; 194:37-48. [PMID: 24486607 DOI: 10.1016/j.resp.2014.01.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 01/08/2014] [Accepted: 01/08/2014] [Indexed: 11/23/2022]
Abstract
Low-level laser therapy (LLLT) controls bronchial hyperresponsiveness (BHR) associated with increased RhoA expression as well as pro-inflammatory mediators associated with NF-kB in acute lung inflammation. Herein, we explore if LLLT can reduce both BHR and Th2 cytokines in allergic asthma. Mice were studied for bronchial reactivity and lung inflammation after antigen challenge. BHR was measured through dose-response curves to acetylcholine. Some animals were pretreated with a RhoA inhibitor before the antigen. LLLT (660 nm, 30 mW and 5.4 J) was applied on the skin over the right upper bronchus and two irradiation protocols were used. Reduction of BHR post LLLT coincided with lower RhoA expression in bronchial muscle as well as reduction in eosinophils and eotaxin. LLLT also diminished ICAM expression and Th2 cytokines as well as signal transducer and activator of transduction 6 (STAT6) levels in lungs from challenged mice. Our results demonstrated that LLLT reduced BHR via RhoA and lessened allergic lung inflammation via STAT6.
Collapse
|
35
|
Nam SY, Kim MH, Seo Y, Choi Y, Jang JB, Kang IC, Kim MJ, Pak SC, Kim HM, Jeong HJ. The (2'S,7'S)-O-(2-methylbutanoyl)-columbianetin as a novel allergic rhinitis-control agent. Life Sci 2014; 98:103-12. [PMID: 24447626 DOI: 10.1016/j.lfs.2014.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 12/19/2013] [Accepted: 01/09/2014] [Indexed: 11/29/2022]
Abstract
AIMS The (2'S,7'S)-O-(2-methylbutanoyl)-columbianetin (OMC) is a novel secondary metabolite extracted from Corydalis heterocarpa, which has long been used as a folk medicine for various inflammatory diseases in Korea. We examined the effect of OMC on allergic rhinitis (AR). MAIN METHODS We assessed the therapeutic effects and regulatory mechanisms of OMC on the phorbol 12-myristate 13-acetate plus A23187-stimulated mast cell line, HMC-1 cells and ovalbumin (OVA)-induced AR models. KEY FINDINGS OMC significantly decreased the releases of histamine and tryptase from stimulated HMC-1 cells. The degranulation process, characterized by morphological extension of the filopodia on the surface and membrane ruffling, was strongly induced in the stimulated-HMC-1 cell, however OMC suppressed the morphological changes in stimulated-HMC-1 cells. OMC reduced the production and mRNA expression of inflammatory cytokines. These inhibitory actions by OMC were dependent on the regulation of mitogen-activated protein kinases, nuclear factor-κB, and caspapase-1 signaling pathways. In the AR animal model, the increased rub scores and AR biomarkers (histamine and IgE) in ovalbumin (OVA)-sensitized mice were significantly reduced by the administration of OMC. Furthermore, eosinophils and mast cell infiltrations in nasal mucosa tissue were also blocked through the regulation of macrophage-inflammatory protein and intercellular adhesion molecule-1 levels. SIGNIFICANCE OMC showed the possibility to regulate AR in activated mast cells and OVA-induced AR models. Hence, we suggest that OMC is a powerful and feasible new agent to suppress AR.
Collapse
Affiliation(s)
- Sun-Young Nam
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Min-Ho Kim
- High-Enthalpy Plasma Research Center, Chonbuk National University, Republic of Korea
| | - Youngwan Seo
- Division of Marine Environment & Bioscience, Korea Maritime University, Busan, Republic of Korea
| | - Youngjin Choi
- Biochip Research Center and Inflammatory Disease Research Center, Hoseo University, 165, Sechul-ri, Baebang-myun, Asan, Chungnam 336-795, Republic of Korea
| | - Jae-Bum Jang
- Regional Innovation Center and Inflammatory Disease Research Center, Hoseo University, 165, Sechul-ri, Baebang-myun, Asan, Chungnam 336-795, Republic of Korea
| | - In-Cheol Kang
- Biochip Research Center and Inflammatory Disease Research Center, Hoseo University, 165, Sechul-ri, Baebang-myun, Asan, Chungnam 336-795, Republic of Korea
| | - Myong-Jo Kim
- Oriental Bio-herb Research Institute, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Sok Cheon Pak
- School of Biomedical Sciences, Charles Sturt University, Bathurst, NSW 2795, Australia
| | - Hyung-Min Kim
- Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea.
| | - Hyun-Ja Jeong
- Biochip Research Center and Inflammatory Disease Research Center, Hoseo University, 165, Sechul-ri, Baebang-myun, Asan, Chungnam 336-795, Republic of Korea.
| |
Collapse
|
36
|
Pathogenesis of allergen-induced eosinophilic esophagitis is independent of interleukin (IL)-13. Immunol Cell Biol 2013; 91:408-15. [PMID: 23689305 PMCID: PMC3947911 DOI: 10.1038/icb.2013.21] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 04/12/2013] [Accepted: 04/13/2013] [Indexed: 12/22/2022]
Abstract
Several studies have shown that IL-13 is induced in the esophageal biopsies of EoE patients and promotes esophageal eosinophilia in mice following an IL-13 challenge. However, the role of IL-13 has not been clearly investigated in allergen-induced EoE. Accordingly, we tested the hypothesis that IL-13 is required in allergen-induced EoE. Mice deficient in IL-13, STAT (signal transducer and activator of transcription)6 and both IL-4/IL-13 genes with their respective controls were challenged with aspergillus extract and IL-5 gene-deficient with their control were challenged with recombinant IL-13, intranasally The lung and esophageal eosinophils, mast cells and collagen accumulation were examined. Herein, we report that intranasal delivery of IL-13 promotes IL-5 dependent esophageal eosinophilia. However, allergen-induced EoE is not impaired in the IL-13 gene-deficient mice. In addition, wild type and IL-13 gene-deficient mice demonstrated a comparable level of mast cells and collagen accumulation in the esophagus following allergen-induced experimental EoE. Similarly, we found that esophageal eosinophilia in IL-4/IL-13 double gene-deficient and STAT6 gene-deficient mice were also not reduced following allergen-induced experimental EoE. In contrast, lung eosinophilia was significantly reduced in mice deficient in IL-13, both IL-4/IL-13 and STAT6 genes following allergen challenge. In conclusion, our data establish that allergen-induced EoE pathogenesis is independent of IL-13; whereas, IL-13 is required for allergen-induced lung eosinophilia.
Collapse
|
37
|
Vairale AS, Sivaswaroop P, Bandana S. Development and Validation of Stability-indicating HPLC Method for Betamethoasone Dipropionate and Related Substances in Topical Formulation. Indian J Pharm Sci 2013; 74:107-15. [PMID: 23325990 PMCID: PMC3546326 DOI: 10.4103/0250-474x.103840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 03/14/2012] [Accepted: 03/17/2012] [Indexed: 11/04/2022] Open
Abstract
A gradient reversed phase HPLC method was developed and validated for analysis of betamethasone dipropionate, its related substances and degradation products, using Altima C(18) column (250×4.6 mm, 5 μm) with a flow rate of 1.0 ml/min and detection wavelength of 240 nm. The mobile phase A is a mixture of water, tetrahydrofuran and acetonitrile in the ratio of 90:4:6 (v/v/v) while mobile phase B is a mixture of acetonitrile, tetrahydrofuran, water and methanol in the ratio of 74:2:4:20 (v/v/v/v). The samples were analyzed using 20 μl injection volume and the column temperature was maintained at 50°. The limit of detection and limit of quantitation were found to be 0.02 μg/ml and 0.07 μg/ml, respectively. The stability-indicating capability of method was established by forced degradation studies and method demonstrated successful separation of drug, its related substances and degradation products. The method was validated as per the International Conference on Harmonization guidelines. The developed method is linear in the range of 0.07 to 200% of specification limits established for all the known related substances; betamethasone17-propionate, betamethasone 21-propionate, betamethasone 17-propionate-21-acetate (RSD <5, 2, 1%, respectively, r(2)=09991-0.9999 for sample concentration of 100 μg/ml). The method is sensitive, specific, linear, accurate, precise and stability indicating for the quantitation of drug, its related substances and other degradation compounds.
Collapse
Affiliation(s)
- A S Vairale
- Dermatology-Research and Development, IPDO, Innovation Plaza, Dr. Reddy's Laboratories Ltd., Bachupally, Hyderabad-500 072, India
| | | | | |
Collapse
|
38
|
Offermann DA, McKendrick JE, Sejberg JJP, Mo B, Holdom MD, Helm BA, Leatherbarrow RJ, Beavil AJ, Sutton BJ, Spivey AC. Synthesis and incorporation into cyclic peptides of tolan amino acids and their hydrogenated congeners: construction of an array of A-B-loop mimetics of the Cε3 domain of human IgE. J Org Chem 2012; 77:3197-214. [PMID: 22397517 DOI: 10.1021/jo202604q] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The disruption of the human immunolobulin E-high affinity receptor I (IgE-FcεRI) protein-protein interaction (PPI) is a validated strategy for the development of anti asthma therapeutics. Here, we describe the synthesis of an array of conformationally constrained cyclic peptides based on an epitope of the A-B loop within the Cε3 domain of IgE. The peptides contain various tolan (i.e., 1,2-biarylethyne) amino acids and their fully and partially hydrogenated congeners as conformational constraints. Modest antagonist activity (IC(50) ∼660 μM) is displayed by the peptide containing a 2,2'-tolan, which is the one predicted by molecular modeling to best mimic the conformation of the native A-B loop epitope in IgE.
Collapse
Affiliation(s)
- Daniel A Offermann
- Department of Chemistry, South Kensington Campus, Imperial College, London SW7 2AZ, UK
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Design, synthesis, and biological activity of certain quinazolinedione derivatives as potent phosphodiestrase4 inhibitors. Med Chem Res 2011. [DOI: 10.1007/s00044-011-9892-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
40
|
Chemokines and their receptors in the allergic airway inflammatory process. Clin Rev Allergy Immunol 2011; 41:76-88. [PMID: 20352527 DOI: 10.1007/s12016-010-8202-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The development of the allergic airway disease conveys several cell types, such as T-cells, eosinophils, mast cells, and dendritic cells, which act in a special and temporal synchronization. Cellular mobilization and its complex interactions are coordinated by a broad range of bioactive mediators known as chemokines. These molecules are an increasing family of small proteins with common structural motifs and play an important role in the recruitment and cell activation of both leukocytes and resident cells at the allergic inflammatory site via their receptors. Trafficking and recruitment of cell populations with specific chemokines receptors assure the presence of reactive allergen-specific T-cells in the lung, and therefore the establishment of an allergic inflammatory process. Different approaches directed against chemokines receptors have been developed during the last decades with promising therapeutic results in the treatment of asthma. In this review we explore the role of the chemokines and chemokine receptors in allergy and asthma and discuss their potential as targets for therapy.
Collapse
|
41
|
Abdel Rahman MN, Abdelmotelb AAM. Study of Atorvastatin in experimental allergic airway inflammation in mice. Int Immunopharmacol 2011; 11:1090-4. [PMID: 21421071 DOI: 10.1016/j.intimp.2011.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Revised: 02/23/2011] [Accepted: 03/06/2011] [Indexed: 01/13/2023]
Abstract
BACKGROUND Inflammation and oxidative stress are associated with airway diseases. There is growing evidence that Atorvastatin could be used as a therapy for these conditions. OBJECTIVE On these bases, we evaluated Atorvastatin as a protective and reversal treatment for the allergic airway diseases in mice model. We also looked at the possible interaction with the currently used effective medication. METHODS Mice were sensitized and challenged with ovalbumin (OVA) to develop features of allergic airway diseases mainly of bronchial inflammation. Atorvastatin was injected during or after the sensitization and challenge process to evaluate its protective or reversal effects, respectively. Total and differential cells in the BAL fluids together with IL-4, IL-5 and IL-10 cytokine levels were evaluated. Total IgE and cholesterol levels in serum were studied. RESULTS In the protective phase, Atorvastatin inhibited the OVA-induced cellular infiltration of lung bronchi, decreased IL-4 and IL-5 and prevented the increase in IL-10 cytokine levels. Also, it reduced the OVA-induced high serum total IgE level. Injection of Atorvastatin after challenge was not effective in reversing the inflammatory process, with no major contribution towards augmenting the actions of Dexamethasone. The cholesterol lowering effect was marked in the protective phase while less effective for the reversal phase. CONCLUSION Our results indicate that Atorvastatin reduced the allergic inflammatory features in mice and it could be useful towards developing a better therapeutic regimen for the treatment of allergic diseases.
Collapse
|
42
|
Enhancing the Stability and Solubility of the Glucocorticoid Receptor Ligand-Binding Domain by High-Throughput Library Screening. J Mol Biol 2010; 403:562-77. [DOI: 10.1016/j.jmb.2010.08.048] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 08/20/2010] [Accepted: 08/24/2010] [Indexed: 11/23/2022]
|
43
|
Effect of single walled carbon nanotube–cetyltrimethyl ammonium bromide nanocomposite film modified pyrolytic graphite on the determination of betamethasone in human urine. Colloids Surf B Biointerfaces 2010; 77:200-5. [DOI: 10.1016/j.colsurfb.2010.01.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Revised: 01/14/2010] [Accepted: 01/28/2010] [Indexed: 11/23/2022]
|
44
|
Xu Y, Zhang Y, Cardell LO. Nicotine enhances murine airway contractile responses to kinin receptor agonists via activation of JNK- and PDE4-related intracellular pathways. Respir Res 2010; 11:13. [PMID: 20113502 PMCID: PMC2845563 DOI: 10.1186/1465-9921-11-13] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 01/29/2010] [Indexed: 11/16/2022] Open
Abstract
Background Nicotine plays an important role in cigarette-smoke-associated airway disease. The present study was designed to examine if nicotine could induce airway hyperresponsiveness through kinin receptors, and if so, explore the underlying mechanisms involved. Methods Murine tracheal segments were cultured for 1, 2 or 4 days in serum-free DMEM medium in presence of nicotine (1 and 10 μM) or vehicle (DMSO). Contractile responses induced by kinin B1 receptor agonist, des-Arg9-bradykinin, and B2 receptor agonist, bradykinin, were monitored with myographs. The B1 and B2 receptor mRNA expressions were semi-quantified using real-time PCR and their corresponding protein expressions assessed with confocal-microscopy-based immunohistochemistry. Various pharmacological inhibitors were used for studying intracellular signaling pathways. Results Four days of organ culture with nicotine concentration-dependently increased kinin B1 and B2 receptor-mediated airway contractions, without altering the kinin receptor-mediated relaxations. No such increase was seen at day 1 or day 2. The airway contractile responses to 5-HT, acetylcholine and endothelin receptor agonists remained unaffected by nicotine. Two different neuronal nicotinic receptor antagonists MG624 and hexamethonium blocked the nicotine-induced effects. The enhanced contractile responses were accompanied by increased mRNA and protein expression for both kinin receptors, suggesting the involvement of transcriptional mechanisms. Confocal-microscopy-based immunohistochemistry showed that 4 days of nicotine treatment induced activation (phosphorylation) of c-Jun N-terminal kinase (JNK), but not extracellular signal-regulated kinase 1 and 2 (ERK1/2) and p38. Inhibition of JNK with its specific inhibitor SP600125 abolished the nicotine-induced effects on kinin receptor-mediated contractions and reverted the enhanced receptor mRNA expression. Administration of phosphodiesterase inhibitors (YM976 and theophylline), glucocorticoid (dexamethasone) or adenylcyclase activator (forskolin) suppressed the nicotine-enhanced airway contractile response to des-Arg9-bradykinin and bradykinin. Conclusions Nicotine induces airway hyperresponsiveness via transcriptional up-regulation of airway kinin B1 and B2 receptors, an effect mediated via neuronal nicotinic receptors. The underlying molecular mechanisms involve activation of JNK- and PDE4-mediated intracellular inflammatory signal pathways. Our results might be relevant to active and passive smokers suffering from airway hyperresponsiveness, and suggest new therapeutic targets for the treatment of smoke-associated airway disease.
Collapse
Affiliation(s)
- Yuan Xu
- Division of Ear, Nose and Throat Diseases, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden
| | | | | |
Collapse
|
45
|
Holmes A, Brown R, Shakesheff K. Engineering tissue alternatives to animals: applying tissue engineering to basic research and safety testing. Regen Med 2009; 4:579-92. [PMID: 19580406 DOI: 10.2217/rme.09.26] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The focus for the rapid progress in the field of tissue engineering has been the clinical potential of the technology to repair, replace, maintain or enhance the function of a particular tissue or organ. However, tissue engineering has much wider applicability in basic research and safety testing, which is often not recognized owing to the clinical focus of tissue engineers. Using examples from a recent National Centre for the Replacement, Refinement and Reduction of Animals in Research/Biotechnology and Biological Sciences Research Council symposium, which brought together tissue engineers and scientists from other research communities, this review highlights the potential of tissue engineering to provide scientifically robust alternatives to animals to address basic research questions and improve drug and chemical development in the pharmaceutical and chemical industries.
Collapse
Affiliation(s)
- Anthony Holmes
- National Centre for the Replacement, Refinement & Reduction of Animals in Research, 20 Park Crescent, London, W1B 1AL, UK.
| | | | | |
Collapse
|
46
|
Goyal RN, Bishnoi S. Simultaneous voltammetric determination of prednisone and prednisolone in human body fluids. Talanta 2009; 79:768-74. [DOI: 10.1016/j.talanta.2009.04.067] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 04/29/2009] [Accepted: 04/30/2009] [Indexed: 11/25/2022]
|
47
|
|
48
|
In vivo study of antiallergenicity of ethanol extracts from Sargassum tenerrimum, Sargassum cervicorne and Sargassum graminifolium turn. Eur Food Res Technol 2009. [DOI: 10.1007/s00217-009-1066-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
49
|
Development and validation of a stability-indicating RP-HPLC method to separate low levels of dexamethasone and other related compounds from betamethasone. J Pharm Biomed Anal 2009; 49:646-54. [DOI: 10.1016/j.jpba.2008.12.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2008] [Revised: 12/08/2008] [Accepted: 12/11/2008] [Indexed: 11/22/2022]
|
50
|
Serhan CN, Chiang N. Endogenous pro-resolving and anti-inflammatory lipid mediators: a new pharmacologic genus. Br J Pharmacol 2008; 153 Suppl 1:S200-15. [PMID: 17965751 PMCID: PMC2268040 DOI: 10.1038/sj.bjp.0707489] [Citation(s) in RCA: 305] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2007] [Revised: 08/31/2007] [Accepted: 09/01/2007] [Indexed: 01/23/2023] Open
Abstract
Complete resolution of an acute inflammatory response and its return to homeostasis are essential for healthy tissues. Here, we overview ongoing efforts to characterize cellular and molecular mechanisms that govern the resolution of self-limited inflammation. Systematic temporal analyses of evolving inflammatory exudates using mediator lipidomics-informatics, proteomics, and cellular trafficking with murine resolving exudates demonstrate novel endogenous pathways of local-acting mediators that share both anti-inflammatory and pro-resolving properties. In murine systems, resolving-exudate leukocytes switch their phenotype to actively generate new families of mediators from major omega-3 fatty acids EPA and DHA termed resolvins and protectins. Recent advances on their biosynthesis and actions are reviewed with a focus on the E-series resolvins (RvE1, RvE2), D series resolvins (RvD1, RvD2) and the protectins including neuroprotectin D1/protectin D1 (NPD1/PD1) as well as their aspirin-triggered epimeric forms. Members of each new family demonstrate potent stereo-specific actions, joining the lipoxins as endogenous local signals that govern resolution and endogenous anti-inflammation mechanisms. In addition to their origins and roles in resolution biology in the immune system, recent findings indicate that these new mediator families also display potent protective actions in lung, kidney, and eye as well as enhance microbial clearance. Thus, these endogenous agonists of resolution pathways constitute a novel genus of chemical mediators that possess pro-resolving, anti-inflammatory, and antifibrotic as well as host-directed antimicrobial actions. These may be useful in the design of new therapeutics and treatments for diseases with the underlying trait of uncontrolled inflammation and redox organ stress.
Collapse
Affiliation(s)
- C N Serhan
- Department of Anesthesiology, Center for Experimental Therapeutics and Reperfusion Injury, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA, USA.
| | | |
Collapse
|