1
|
Li H, Li J, Wang M, Feng W, Gao F, Han Y, Shi Y, Du Z, Yuan Q, Cao P, Wang X, Gao X, Cao K, Gao L. Clusterbody Enables Flow Sorting-Assisted Single-Cell Mass Spectrometry Analysis for Identifying Reversal Agent of Chemoresistance. Anal Chem 2023; 95:560-564. [PMID: 36563048 DOI: 10.1021/acs.analchem.2c04070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Identifying effective reversal agents overcoming multidrug resistance with causal mechanisms from an efflux pump protein is of vital importance for enhanced tumor chemotherapy in clinic. To achieve this end, we construct a metal cluster-based probe, named clusterbody, to develop flow sorting-assisted single-cell mass spectrometry analysis. This clusterbody synthesized by biomimetic mineralization possesses an antibody-like property to selectively recognize an efflux pump protein. The intrinsic red fluorescence emission of the clusterbody facilitates fluorescence-activated high-throughput cell sorting of subpopulations with different multidrug resistance levels. Furthermore, based on the accurate formula of the clusterbody, the corresponding protein abundance at the single-cell level is determined through detecting gold content via precise signal amplification by laser ablation inductively coupled plasma mass spectrometry. Therefore, the effect of reversal agent treatment overcoming multidrug resistance is evaluated in a quantitative manner. This work opens a new avenue to identify reversal agents, shedding light on developing combined or synergetic tumor therapy.
Collapse
Affiliation(s)
- Han Li
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Jiaojiao Li
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Meng Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Weiyue Feng
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Fuping Gao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Han
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Yijie Shi
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Zhongying Du
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Qing Yuan
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Peng Cao
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Xiayan Wang
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Xueyun Gao
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Kai Cao
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| | - Liang Gao
- Department of Chemistry, Faculty of Environment and Life Science, Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, China
| |
Collapse
|
2
|
Fan J, To KKW, Chen ZS, Fu L. ABC transporters affects tumor immune microenvironment to regulate cancer immunotherapy and multidrug resistance. Drug Resist Updat 2023; 66:100905. [PMID: 36463807 DOI: 10.1016/j.drup.2022.100905] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/16/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022]
Abstract
Multidrug resistance (MDR) is the phenomenon in which cancer cells simultaneously develop resistance to a broad spectrum of structurally and mechanistically unrelated drugs. MDR severely hinders the effective treatment of cancer and is the major cause of chemotherapy failure. ATP-binding cassette (ABC) transporters are extensively expressed in various body tissues, and actively transport endogenous and exogenous substrates through biological membranes. Overexpression of ABC transporters is frequently observed in MDR cancer cells, which promotes efflux of chemotherapeutic drugs and reduces their intracellular accumulation. Increasing evidence suggests that ABC transporters regulate tumor immune microenvironment (TIME) by transporting various cytokines, thus controlling anti-tumor immunity and sensitivity to anticancer drugs. On the other hand, the expression of various ABC transporters is regulated by cytokines and other immune signaling molecules. Targeted inhibition of ABC transporter expression or function can enhance the efficacy of immune checkpoint inhibitors by promoting anticancer immune microenvironment. This review provides an update on the recent research progress in this field.
Collapse
Affiliation(s)
- Jingyi Fan
- State Key Laboratory of Oncology in South China;Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute; Sun Yat-sen University Cancer Center, Guangzhou 510060, China; Department of pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China; Beijing Key Laboratory of Bio-characteristic Profiling for Evaluation of Rational Drug Use, Beijing 100038, China
| | - Kenneth Kin Wah To
- School of Pharmacy, The Chinese University of Hong Kong, Hong Kong, China
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, United States.
| | - Liwu Fu
- State Key Laboratory of Oncology in South China;Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute; Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
| |
Collapse
|
3
|
Hydrogen Sulfide Attenuates Lipopolysaccharide-Induced Inflammation via the P-glycoprotein and NF-κB Pathway in Astrocytes. Neurochem Res 2022; 48:1424-1437. [PMID: 36482035 PMCID: PMC10066098 DOI: 10.1007/s11064-022-03840-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/13/2022] [Accepted: 11/29/2022] [Indexed: 12/13/2022]
Abstract
AbstractAstrocyte activation is key in neurodegenerative diseases. Hydrogen sulfide (H2S) exhibits neuroprotective effects on astrocytes, although the underlying molecular mechanism remains unclear. Here, we explored the effects of H2S on lipopolysaccharide (LPS)-induced astrocyte activation and astrocyte-mediated neuroinflammation. After inducing primary astrocytes via LPS exposure, H2S levels were altered. The generation and secretion of inflammatory mediators by astrocytes and their interrelation with P-glycoprotein (P-gp), an important transporter belonging to the ABC transporter family, were assessed. Activated astrocytes showed upregulated glial fibrillary acidic protein (GFAP) mRNA expression, and significantly increased proinflammatory factor mRNA/protein expression and release. The secretory capacity of astrocytes was reduced, with significantly decreased proinflammatory factor levels in culture supernatant after P-gp inhibitor verapamil pretreatment. The increase in the intracellular H2S level inhibited LPS-induced GFAP expression and P65 nuclear entry in astrocytes. mRNA expression and release of proinflammatory factors were reduced significantly, with no significant changes in cytoplasmic protein expression. S-sulfhydration levels increased significantly with the increased concentration of sodium hydrosulfide or S-adenosyl-l-methionine addition, with only moderate changes in astrocyte P-gp expression. H2S regulates NF-κB activation, leads to S-sulfhydration of P-gp, and inhibits the biosynthesis and secretion of proinflammatory factors by astrocytes. The regulatory effects of H2S on astrocytes may have clinical value for exploring new therapeutic strategies against neurodegenerative diseases.
Collapse
|
4
|
Grigoreva TA, Sagaidak AV, Novikova DS, Tribulovich VG. Implication of ABC transporters in non-proliferative diseases. Eur J Pharmacol 2022; 935:175327. [DOI: 10.1016/j.ejphar.2022.175327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/28/2022] [Accepted: 10/12/2022] [Indexed: 11/17/2022]
|
5
|
Chegini Z, Didehdar M, Khoshbayan A, Karami J, Yousefimashouf M, Shariati A. The role of Staphylococcus aureus enterotoxin B in chronic rhinosinusitis with nasal polyposis. Cell Commun Signal 2022; 20:29. [PMID: 35264183 PMCID: PMC8905720 DOI: 10.1186/s12964-022-00839-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 02/05/2022] [Indexed: 02/05/2023] Open
Abstract
CRS with nasal polyps (CRSwNP) is a multifactorial disease, and various etiological factors like bacterial superantigens are known to develop this disease. Recent studies reported that Staphylococcus aureus nasal colonization was detected in 67% of the patients with CRSwNP. Moreover, it was reported that specific IgE against S. aureus enterotoxins are discovered in almost half of the nasal tissue homogenates from nasal polyps. Thus, investigations have highlighted the role of staphylococcal enterotoxins, especially enterotoxin B (SEB), in pathogenesis of CRSwNP. The destruction of mucosal integrity was reported as a main SEB-related pathogenic mechanisms in CRSwNP. SEB activates Toll Like Receptor 2 and triggers the production of pro-inflammatory cytokines; furthermore, it induces reactive oxygen species and endoplasmic reticulum stress-induced inflammation that may cause epithelial cell integrity disruption and enhance their permeability. SEB-induced Type 2/Th2 pathway results in degranulation of eosinophils, cationic proteins production, and localized eosinophilic inflammation. Furthermore, SEB may be involved in the expression of RORC and HIF-1α in Tregs and by maintaining the inflammation in sinonasal mucosa that could have a main role in the pathogenesis of nasal polyposis. Different in vitro findings were confirmed in animal studies; however, in vivo analysis of SEB-induced nasal polyps and CRS remains unfulfilled due to the lack of appropriate animal models. Finally, after elucidating different aspects of SEB pathogenesis in CRSwNP, therapeutic agents have been tested in recent studies with some encouraging results. The purpose of this article is to summarize the most important findings regarding SEB-induced CRS and nasal polyposis. Video Abstract
Collapse
Affiliation(s)
- Zahra Chegini
- Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mojtaba Didehdar
- Department of Medical Parasitology and Mycology, Arak University of Medical Sciences, Arak, Iran
| | - Amin Khoshbayan
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Jafar Karami
- Molecular and Medicine Research Center, Khomein University of Medical Sciences, Khomein, Iran.,Department of Medical Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran
| | - Milad Yousefimashouf
- Department of Medical Laboratory Sciences, Faculty of Paramedical, Borujerd Branch, Islamic Azad University, Borujerd, Iran
| | - Aref Shariati
- Molecular and Medicine Research Center, Khomein University of Medical Sciences, Khomein, Iran. .,Department of Medical Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran.
| |
Collapse
|
6
|
Mueller SK. The Role of Exosomes in the Pathophysiology of Chronic Rhinosinusitis. Front Cell Infect Microbiol 2022; 11:812920. [PMID: 35155273 PMCID: PMC8837187 DOI: 10.3389/fcimb.2021.812920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/20/2021] [Indexed: 12/14/2022] Open
Abstract
Non-invasive biomarker analysis has made repetitive and painless sampling over time possible. Exosomes are being released from a parent cell and their cargo mirrors the cell micromilieu of the parent cell. Therefore, exosomes are promising surrogates for their parent cells. That is also why exosomes provide an improved signal-to-noise ratio. Current studies have identified valid non-invasive biomarkers that may be able to monitor disease severity. Exosomes are suggested to play an important role in interepithelial communication and are suggested to play a role in the initiation and maintenance of inflammation in CRS. They are, however, also involved simultaneously in several immunological processes including immune protection and immunosuppression. As the isolation of exosomes is time-consuming their value in everyday routine diagnostics has yet to be determined.
Collapse
|
7
|
Workman AD, Mueller SK, McDonnell K, Goldfarb JW, Bleier BS. Phase I safety and tolerability study of topical verapamil HCl in chronic rhinosinusitis with nasal polyps. Int Forum Allergy Rhinol 2022; 12:1071-1074. [PMID: 34990075 DOI: 10.1002/alr.22959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/20/2021] [Accepted: 12/27/2021] [Indexed: 11/11/2022]
Affiliation(s)
- Alan D Workman
- Department of Otolaryngology-Head & Neck Surgery, Massachusetts Eye and Ear, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Sarina K Mueller
- Department of Otolaryngology - Head and Neck Surgery, Friedrich-Alexander-Universitat Erlangen-Nurnberg (FAU), University Hospital Erlangen, Erlangen, Germany
| | - Kristen McDonnell
- Department of Otolaryngology-Head & Neck Surgery, Massachusetts Eye and Ear, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Jeremy W Goldfarb
- Harvard Medical School, Boston, MA, USA.,Department of Anesthesia, Massachusetts Eye and Ear, Boston, MA, USA
| | - Benjamin S Bleier
- Department of Otolaryngology-Head & Neck Surgery, Massachusetts Eye and Ear, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| |
Collapse
|
8
|
Using the Intranasal Route to Administer Drugs to Treat Neurological and Psychiatric Illnesses: Rationale, Successes, and Future Needs. CNS Drugs 2022; 36:739-770. [PMID: 35759210 PMCID: PMC9243954 DOI: 10.1007/s40263-022-00930-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/19/2022] [Indexed: 11/17/2022]
Abstract
While the intranasal administration of drugs to the brain has been gaining both research attention and regulatory success over the past several years, key fundamental and translational challenges remain to fully leveraging the promise of this drug delivery pathway for improving the treatment of various neurological and psychiatric illnesses. In response, this review highlights the current state of understanding of the nose-to-brain drug delivery pathway and how both biological and clinical barriers to drug transport using the pathway can been addressed, as illustrated by demonstrations of how currently approved intranasal sprays leverage these pathways to enable the design of successful therapies. Moving forward, aiming to better exploit the understanding of this fundamental pathway, we also outline the development of nanoparticle systems that show improvement in delivering approved drugs to the brain and how engineered nanoparticle formulations could aid in breakthroughs in terms of delivering emerging drugs and therapeutics while avoiding systemic adverse effects.
Collapse
|
9
|
Kreft ME, Tratnjek L, Lasič E, Hevir N, Rižner TL, Kristan K. Different Culture Conditions Affect Drug Transporter Gene Expression, Ultrastructure, and Permeability of Primary Human Nasal Epithelial Cells. Pharm Res 2020; 37:170. [PMID: 32820417 DOI: 10.1007/s11095-020-02905-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 08/06/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE This study aimed to characterize a commercially available primary human nasal epithelial cell culture and its gene expression of a wide range of drug transporters under different culture conditions. METHODS Human nasal cells were cultured in three different types of culture media at the air-liquid (A-L) or liquid-liquid (L-L) interfaces for 1 or 3 wks. The effects of the different cell culture conditions were evaluated using light and electron microscopy, transepithelial electrical resistance (TEER) measurements, permeation studies with dextran, and gene expression profiling of 84 drug transporters. RESULTS The type of culture medium affected cell ultrastructure, TEER, and dextran permeation across epithelia. The expression of 20 drug transporter genes depended on the culture interface and/or time in culture; the A-L interface and longer time in culture favored higher expression levels of five ABC and seven SLC transporters. CONCLUSIONS Culture conditions influence the morphology, barrier formation, permeation properties, and drug transporter expression of human nasal epithelial cells, and this must be taken into consideration during the establishment and validation of in vitro models. A thorough characterization of a nasal epithelial model and its permeability properties is necessary to obtain an appropriate standardized model for the design of aerosol therapeutics and drug transport studies.
Collapse
Affiliation(s)
- Mateja Erdani Kreft
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Larisa Tratnjek
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Eva Lasič
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Neli Hevir
- Lek Pharmaceuticals d.d, Biopharma Process & Product Development, Mengeš, Slovenia
| | - Tea Lanišnik Rižner
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Katja Kristan
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia. .,Lek Pharmaceuticals, d.d, Sandoz Development Center Slovenia, Ljubljana, Slovenia.
| |
Collapse
|
10
|
Bleier BS. Topical glucocorticoid treatment for chronic rhinosinusitis in the biologic era. Int Forum Allergy Rhinol 2020; 10:933-935. [PMID: 32583619 DOI: 10.1002/alr.22631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Benjamin S Bleier
- Claire and John Bertucci Chair in Otolaryngology-Head and Neck Surgery (OHNS), Director of Translational Research, Director of Endoscopic Skull Base Surgery, Co-Director of Center for Orbital Surgery, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| |
Collapse
|
11
|
Jian WX, Zhang Z, Chu SF, Peng Y, Chen NH. Potential roles of brain barrier dysfunctions in the early stage of Alzheimer’s disease. Brain Res Bull 2018; 142:360-367. [DOI: 10.1016/j.brainresbull.2018.08.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/03/2018] [Accepted: 08/17/2018] [Indexed: 02/07/2023]
|
12
|
Miyake MM, Nocera A, Miyake MM. P-glycoprotein and chronic rhinosinusitis. World J Otorhinolaryngol Head Neck Surg 2018; 4:169-174. [PMID: 30506047 PMCID: PMC6251952 DOI: 10.1016/j.wjorl.2018.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 07/18/2018] [Indexed: 11/13/2022] Open
Abstract
Chronic rhinosinusitis (CRS) is a heterogeneous definition that includes different disease states that usually are associated with abnormal inflammatory responses. Besides being prevalent, the mechanisms involved in its pathogenesis are not clear and there are few therapeutic options with tolerable side effects. P-glycoprotein (P-gp) is an efflux pump responsible of extruding xenobiotics and cellular metabolites from multiple cell types. It has been widely studied in the cancer field, due to its ability to confer resistance to chemotherapy. It also promotes Type 2 helper T-cell polarizing cytokine secretion in CRS and may represent a potential target to differentiate subtypes of CRS and personalize treatment. This state-of-the-art review explores current knowledge on the participation of P-gp in the pathogenesis of CRS, the P-gp inhibition as a novel targeted therapeutic strategy and the exosomal P-gp test, a non-invasive biomarker that can represent an important advance in the field of rhinology.
Collapse
Affiliation(s)
- Marcel M Miyake
- Department of Otolaryngology, Santa Casa de Sao Paulo School of Medical Sciences, RuaDoutorCesário Motta Júnior, 61 - Vila Buarque, São Paulo, SP, 01221-020, Brazil
| | - Angela Nocera
- Department of Otolaryngology, Division of Rhinology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, 243 Charles St, Boston, MA, 02114, USA
| | - Michelle M Miyake
- Department of Otolaryngology, Santa Casa de Sao Paulo School of Medical Sciences, RuaDoutorCesário Motta Júnior, 61 - Vila Buarque, São Paulo, SP, 01221-020, Brazil
| |
Collapse
|
13
|
Wu D, Wei Y, Bleier BS. Emerging Role of Proteases in the Pathogenesis of Chronic Rhinosinusitis with Nasal Polyps. Front Cell Infect Microbiol 2018; 7:538. [PMID: 29376037 PMCID: PMC5770401 DOI: 10.3389/fcimb.2017.00538] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 12/26/2017] [Indexed: 12/17/2022] Open
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a heterogeneous upper airway disease with multiple etiologies. Clinically, CRSwNP can be classified into either eosinophilic or non-eosinophilic subtypes. The eosinophilic phenotype of CRSwNP is widely thought to be highly associated with recurrence of nasal polyps or surgical failure. Epithelial cells have a crucial role in the development of Th2-biased airway diseases. Recent studies have shown that a wide range of external stimuli such as allergens and microorganisms can elicit the release of epithelial-derived Th2-driving cytokines and chemokines. Protease activity is a feature common to these multiple environmental insults and there is growing evidence for the concept that an imbalance of proteases and protease inhibitors in the epithelial barrier leads to both the initiation and maintenance of chronic eosinophilic airway inflammation. In this review, we analyze recent work on the role of proteases in the development of the sinonasal mucosal type 2 immune response with an emphasis on the molecular pathways promoting adaptive Th2 cell immunity.
Collapse
Affiliation(s)
- Dawei Wu
- The Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States.,The Department of Otorhinolaryngology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yongxiang Wei
- The Department of Otorhinolaryngology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Benjamin S Bleier
- The Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, United States
| |
Collapse
|
14
|
Nocera AL, Miyake MM, Seifert P, Han X, Bleier BS. Exosomes mediate interepithelial transfer of functional P-glycoprotein in chronic rhinosinusitis with nasal polyps. Laryngoscope 2017; 127:E295-E300. [DOI: 10.1002/lary.26614] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/01/2017] [Accepted: 03/09/2017] [Indexed: 12/28/2022]
Affiliation(s)
- Angela L. Nocera
- Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston Massachusetts U.S.A
| | - Marcel M. Miyake
- Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston Massachusetts U.S.A
- Department of Otolaryngology; Santa Casa de Sao Paulo School of Medical Sciences; São Paulo Brazil
| | - Philip Seifert
- Schepens Eye Research Institute and Department of Ophthalmology; Harvard Medical School; Boston Massachusetts U.S.A
| | - Xue Han
- Department of Biomedical Engineering; Boston University; Boston Massachusetts U.S.A
| | - Benjamin S. Bleier
- Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston Massachusetts U.S.A
| |
Collapse
|
15
|
Nocera AL, Meurer AT, Singleton A, Simons C, BuSaba J, Tara Gass N, Han X, Bleier BS. Intact soluble P-glycoprotein is secreted by sinonasal epithelial cells. Am J Rhinol Allergy 2017; 30:246-9. [PMID: 27456593 DOI: 10.2500/ajra.2016.30.4330] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND P-glycoprotein (P-gp) is a 170 kDa transmembrane efflux pump, which is upregulated in chronic rhinosinusitis. Studies of leukemia demonstrated that P-gp may also be secreted in an intact soluble form. The purpose of this study was to explore whether sinonasal epithelial cells were capable of secreting soluble P-gp and whether P-gp has any functional role. METHODS Soluble and cytoplasmic P-gp were quantified in vehicle and lipopolysaccharide exposed cultures by enzyme-linked immunosorbent assay. The molecular weight of the soluble P-gp was determined by Western blot. Naive cultures were exposed to recombinant human P-gp at 0-2000 ng/mL. The degree of membranous interpolation was determined by quantitative fluorescent immunocytochemistry and function was determined by a calcein acetoxymethyl ester assay. RESULTS Soluble P-gp was secreted intact at 170 kDa. Mean (standard deviation) secretion was detected within vehicle wells at 55.43 ± 26.26 ng/mL, which significantly increased to 333.27 ± 305.98 ng/mL (p < 0.001) after lipopolysaccharide stimulation. Soluble P-gp strongly and significantly correlated with cytoplasmic P-gp (r = 0.57, p = 0.000001). Exposure to 2000 ng/mL of recombinant P-gp significantly increased corrected total cell fluorescence (1.34 ± 1.85) relative to vehicle control 0.29 ± 0.26 (p = 0.01) and significantly reduced calcein acetoxymethyl ester fluorescence (82.03 ± 43.69) relative to 100 ng/mL recombinant P-gp exposed cells (123.11 ± 42.16, p = 0.001). CONCLUSION Cultured sinonasal epithelial cells were able to both secrete intact P-gp and could functionally interpolate soluble P-gp into their cell membrane. These in vitro findings indicated that soluble P-gp may be present in nasal mucus as a biomarker and could participate in the maintenance of P-gp overexpression in chronic rhinosinusitis and associated inflammation.
Collapse
Affiliation(s)
- Angela L Nocera
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Baello S, Iqbal M, Kearney S, Kuthiala S, Bloise E, Gibb W, Matthews SG. Glucocorticoids modify effects of TGF-β1 on multidrug resistance in the fetal blood-brain barrier. Growth Factors 2016; 34:33-41. [PMID: 27126232 DOI: 10.3109/08977194.2016.1162163] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Transforming growth factor-β1 (TGF-β1) increases P-glycoprotein (P-gp; encoded by Abcb1) activity in fetal brain endothelial cells (BECs). P-gp is important for fetal brain protection against xenobiotics including synthetic glucocorticoids (sGC). We hypothesized that antenatal sGC would modify P-gp responsiveness to TGF-β1 in fetal BECs. Pregnant guinea pigs were treated with dexamethasone or vehicle (N = 5/group) on gestational day (GD) 48-49 and BECs derived on GD50. In BECs from control fetuses, TGF-β1 increased Abcb1 mRNA and P-gp function, by approximately 5-fold and 55% respectively, as well as tight junction function. In contrast, TGF-β1 had no effect on these parameters in BECs from sGC-exposed fetuses. Moreover, levels of TGF-β1 responsive gene, Smad7, were increased 3-fold in BECs from control fetuses after TGF-β1 but not in sGC-exposed fetuses. In conclusion, antenatal sGC alters responsiveness to TGF-β1 in fetal BECs. This study has identified novel mechanisms by which TGF-β1 and sGC modulate fetal brain protection against xenobiotics and other P-gp substrates.
Collapse
Affiliation(s)
- Stephanie Baello
- a Department of Physiology , University of Toronto , Toronto , ON , Canada
| | - Majid Iqbal
- a Department of Physiology , University of Toronto , Toronto , ON , Canada
| | - Samantha Kearney
- a Department of Physiology , University of Toronto , Toronto , ON , Canada
| | - Shikah Kuthiala
- a Department of Physiology , University of Toronto , Toronto , ON , Canada
| | - Enrrico Bloise
- b Department of Morphology , Federal University of Minas Gerais , Belo Horizonte , Brazil
| | - William Gibb
- c Department of Obstetrics and Gynecology , and Cellular and Molecular Medicine, University of Ottawa , Ottawa , ON , Canada
| | - Stephen G Matthews
- a Department of Physiology , University of Toronto , Toronto , ON , Canada
- d Department of Obstetrics and Gynecology , University of Toronto , Toronto , ON , Canada , and
- e Department of Medicine , Faculty of Medicine, University of Toronto , Toronto , ON , Canada
| |
Collapse
|
17
|
Bleier BS, Singleton A, Nocera AL, Kocharyan A, Petkova V, Han X. P-glycoprotein regulates Staphylococcus aureus enterotoxin B-stimulated interleukin-5 and thymic stromal lymphopoietin secretion in organotypic mucosal explants. Int Forum Allergy Rhinol 2015; 6:169-77. [PMID: 26625351 DOI: 10.1002/alr.21566] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 04/29/2015] [Accepted: 05/05/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND T-helper 2 (Th2) inflammation is a hallmark of chronic rhinosinusitis with nasal polyps (CRSwNP) although the pathogenesis is poorly understood. P-glycoprotein (permeability glycoprotein, P-gp) is an efflux pump that is capable of regulating cytokine transport and is expressed within sinonasal mucosa. The purpose of this study was to examine if the oversecretion of interleukin 5 (IL-5) and thymic stromal lymphopoietin (TSLP) in CRSwNP could be explained through P-gp-mediated secretory pathways. METHODS Fifteen ethmoid mucosal explants were harvested from patients with CRS (n = 10) and CRSwNP (n = 10) and stimulated with Staphylococcus aureus enterotoxin B (SEB). P-gp was inhibited using zosuquidar trihydrochloride (herein Zosuquidar). P-gp expression was measured using real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). IL-5, IL-8, and TSLP secretion were quantified using ELISA. RESULTS P-gp protein was overexpressed in CRSwNP (28.32 ± 25.94 ng/mL per mg explant) as compared to CRS (10.74 ± 8.61; p = 0.01, 2-tailed Mann-Whitney U test). There was no difference in messenger RNA (mRNA) expression. SEB induced a significant increase in IL-5 and TSLP but not IL-8 secretion relative to control in the CRSwNP explants only. Subsequent P-gp inhibition significantly reduced IL-5 and TSLP secretion (p = 0.04 for both, 2-tailed Student t test) to control levels. The concentration of IL-5 and TSLP secretion were strongly and significantly correlated to the concentration of P-gp within the same explant (IL-5: r = 0.791, p = 0.001; TSLP: r = 0.687, p = 0.003; 2-tailed Spearman's rank-order correlation). CONCLUSION P-gp protein is expressed at higher concentrations in CRSwNP as compared to CRS. This overexpression directly contributes to the relative hypersecretion of IL-5 and TSLP. These findings suggest a novel mechanism for Th2 skewing in CRSwNP.
Collapse
Affiliation(s)
- Benjamin S Bleier
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| | - Amy Singleton
- Department of Biomedical Engineering, Boston University, Boston, MA
| | - Angela L Nocera
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| | - Armine Kocharyan
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| | - Victoria Petkova
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Xue Han
- Department of Biomedical Engineering, Boston University, Boston, MA
| |
Collapse
|
18
|
Bloise E, Ortiga-Carvalho TM, Reis FM, Lye SJ, Gibb W, Matthews SG. ATP-binding cassette transporters in reproduction: a new frontier. Hum Reprod Update 2015; 22:164-81. [PMID: 26545808 DOI: 10.1093/humupd/dmv049] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 10/19/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The transmembrane ATP-binding cassette (ABC) transporters actively efflux an array of clinically relevant compounds across biological barriers, and modulate biodistribution of many physiological and pharmacological factors. To date, over 48 ABC transporters have been identified and shown to be directly and indirectly involved in peri-implantation events and fetal/placental development. They efflux cholesterol, steroid hormones, vitamins, cytokines, chemokines, prostaglandins, diverse xenobiotics and environmental toxins, playing a critical role in regulating drug disposition, immunological responses and lipid trafficking, as well as preventing fetal accumulation of drugs and environmental toxins. METHODS This review examines ABC transporters as important mediators of placental barrier functions and key reproductive processes. Expression, localization and function of all identified ABC transporters were systematically reviewed using PubMed and Google Scholar websites to identify relevant studies examining ABC transporters in reproductive tissues in physiological and pathophysiological states. Only reports written in English were incorporated with no restriction on year of publication. While a major focus has been placed on the human, extensive evidence from animal studies is utilized to describe current understanding of the regulation and function of ABC transporters relevant to human reproduction. RESULTS ABC transporters are modulators of steroidogenesis, fertilization, implantation, nutrient transport and immunological responses, and function as 'gatekeepers' at various barrier sites (i.e. blood-testes barrier and placenta) against potentially harmful xenobiotic factors, including drugs and environmental toxins. These roles appear to be species dependent and change as a function of gestation and development. The best-described ABC transporters in reproductive tissues (primarily in the placenta) are the multidrug transporters p-glycoprotein and breast cancer-related protein, the multidrug resistance proteins 1 through 5 and the cholesterol transporters ABCA1 and ABCG1. CONCLUSIONS The ABC transporters have various roles across multiple reproductive tissues. Knowledge of efflux direction, tissue distribution, substrate specificity and regulation of the ABC transporters in the placenta and other reproductive tissues is rapidly expanding. This will allow better understanding of the disposition of specific substrates within reproductive tissues, and facilitate development of novel treatments for reproductive disorders as well as improved approaches to protecting the developing fetus.
Collapse
Affiliation(s)
- E Bloise
- Laboratory of Translational Endocrinology, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - T M Ortiga-Carvalho
- Laboratory of Translational Endocrinology, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - F M Reis
- Division of Human Reproduction, Department of Obstetrics and Gynecology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - S J Lye
- Department of Physiology, Faculty of Medicine, University of Toronto, Medical Sciences Building, 1 King's College Circle, Toronto, ON, Canada M5S 1A8 Department Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| | - W Gibb
- Department of Obstetrics & Gynecology, University of Ottawa, Ottawa, ON, Canada Department of Cellular & Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
| | - S G Matthews
- Department of Physiology, Faculty of Medicine, University of Toronto, Medical Sciences Building, 1 King's College Circle, Toronto, ON, Canada M5S 1A8 Department Obstetrics & Gynecology, University of Toronto, Toronto, ON, Canada Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON, Canada
| |
Collapse
|
19
|
Drug transporters in the nasal epithelium: an overview of strategies in targeted drug delivery. Future Med Chem 2015; 6:1381-97. [PMID: 25329195 DOI: 10.4155/fmc.14.77] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In this article, we discussed the expression of some ABC (e.g., P-glycoprortein, MRP and CFTR) and SLC (e.g., POT, DAT, OAT, OATP, OCT, EAAT2/GLT1 and GLUT) amino acid, metal and nucleoside transporters in the nasal mucosa. The localization and therapeutic targeting of these transporters are explored in detail. The wide array of transporters discovered so far in the nasal mucosa implies that a plethora of compounds can be delivered by targeting these transporters. The article concludes with a discussion of the potential challenges and delivery options for transporter-mediated drug targeting via the nasal route.
Collapse
|
20
|
Lam A, Hoang JD, Singleton A, Han X, Bleier BS. Itraconazole and clarithromycin inhibit P-glycoprotein activity in primary human sinonasal epithelial cells. Int Forum Allergy Rhinol 2015; 5:477-80. [PMID: 25907295 DOI: 10.1002/alr.21454] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/28/2014] [Accepted: 10/13/2014] [Indexed: 01/04/2023]
Abstract
BACKGROUND Itraconazole and clarithromycin are clinically effective in the treatment of chronic rhinosinusitis (CRS) through incompletely understood anti-inflammatory properties. P-glycoprotein (P-gp) is overexpressed in CRS and inhibition results in decreased inflammatory cytokine secretion. Both itraconazole and clarithromycin have also been shown to have P-gp inhibitory properties in other tissues, suggesting a novel explanation for their immunomodulatory effects in CRS. The purpose of this study is to therefore confirm whether these drugs are capable of inhibiting P-gp specifically in sinonasal epithelial cells. METHODS This was an institutional review board (IRB)-approved study in which primary sinonasal epithelial cells were cultured in 96-well plates. A Calcein AM assay was used to quantify P-gp inhibition as determined by an increase in intracellular fluorescence. A dose-response curve was generated for itraconazole and clarithromycin (maximal concentration 100 μM) and compared to that of Zosuquidar, a highly specific known P-gp inhibitor. Results were compared using a Student t test with a significance defined as p < 0.05. RESULTS Both itraconazole and clarithromycin demonstrated a dose-response curve for P-gp inhibition similar to that of Zosuquidar. The respective maximal inhibitory concentrations of Zosuquidar, itraconazole, and clarithromycin prior to induction of cytotoxicity were 0.31, 3.13, and 1.56 μM, respectively, as demonstrated by a statistically significant increase in total intracellular fluorescence (p < 0.05 in all groups). CONCLUSION Both itraconazole and clarithromycin are capable of inhibiting sinonasal epithelial cell associated P-gp. The anti-inflammatory effects of these agents in CRS may be attributable, in part, to their heretofore unrecognized P-gp modulatory properties.
Collapse
Affiliation(s)
- Allen Lam
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| | - John D Hoang
- Department of Biomedical Engineering, Boston University, Boston, MA
| | - Amy Singleton
- Department of Biomedical Engineering, Boston University, Boston, MA
| | - Xue Han
- Department of Biomedical Engineering, Boston University, Boston, MA
| | - Benjamin S Bleier
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| |
Collapse
|
21
|
Günel C, Feldman RE, Bleier BS. Osteitis is associated with P-glycoprotein overexpression in patients with chronic sinusitis without nasal polyps. Am J Rhinol Allergy 2015; 28:99-102. [PMID: 24717943 DOI: 10.2500/ajra.2014.28.4011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND P-glycoprotein (P-gp) is a membrane-bound efflux pump that is up-regulated in eosinophilic chronic rhinosinusitis and participates in epithelial cytokine secretion. Osteitis is associated with eosinophilic inflammation and may represent a method to predict patients with P-gp overexpression. The purpose of this article was to determine whether P-gp overexpression and increased osteitis scores are associated in patients with chronic rhinosinusitis (CRS). METHODS An Institutional Review Board-approved study was performed using sinus tissue in 38 patients with CRS. P-gp expression was calculated using quantitative fluorescent immunohistochemistry to generate an epithelial-to-background staining ratio. Patients were stratified into low and high P-gp expression groups. Osteitis was scored radiologically using the Kennedy Osteitis Score (KOS) and Global Osteitis Score (GOS). Serum eosinophilia was assessed. KOS and GOS were compared using a Pearson's correlation coefficient. Osteitis scores and serum eosinophil concentrations between P-gp expression groups were compared using a nonparametric Mann-Whitney U test (two tailed). RESULTS Among the 38 patients, 7(18.42%) had high P-gp expression (mean ± SD, 4.86 ± 1.33) whereas 31(81.57%) had low expression ratios (1.93 ± 0.45). No patients in the high P-gp expression group had undergone prior surgery. Median serum eosinophil values were significantly greater in the high versus low P-gp expression group (6.98 ± 2.17 versus 2.36 ± 1.38, p < 0.001). GOS and KOS values were significantly greater in the high versus low P-gp expression group (15.86 ± 4.91 versus 6.29 ± 1.25 and 4.55 ± 4.33 verus 2.23 ± 1.71; p < 0.001). KOS and GOS values were significantly correlated (r = 0.835; p < 0.001). CONCLUSION Increased osteitis burden as measured by either the KOS or the GOS is associated with increased P-gp membranous expression in CRS. Radiographic quantification of osteitis may therefore be used to identify patients with P-gp overexpression thereby providing a novel potential therapeutic target.
Collapse
Affiliation(s)
- Ceren Günel
- 1Department of Otolaryngology-Head and Neck Surgery, Adnan Menderes University Medical School Hospital, Aydın, Turkey
| | | | | |
Collapse
|
22
|
Bleier BS, Kocharyan A, Singleton A, Han X. Verapamil modulates interleukin-5 and interleukin-6 secretion in organotypic human sinonasal polyp explants. Int Forum Allergy Rhinol 2014; 5:10-3. [PMID: 25330767 DOI: 10.1002/alr.21436] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Revised: 08/27/2014] [Accepted: 09/12/2014] [Indexed: 01/03/2023]
Abstract
BACKGROUND Verapamil is an L-type calcium channel blocker (CCB) that has been shown to have immunomodulatory properties in a variety of tissues. The goal of this study was determine whether verapamil is capable of regulating cytokine secretion in sinonasal polyps and to compare this effect to dexamethasone, an established immunosuppressive corticosteroid. METHODS This was an institutional review board (IRB)-approved study in sinonasal polyp explants derived from 8 patients with chronic rhinosinusitis with nasal polyps (CRSwNP). Polyps were incubated with dexamethasone or verapamil for 24 hours followed by an additional 24 hours with Staphylococcal enterotoxin B (SEB). Concentrations of secreted cytokines over each exposure period were determined by enzyme-linked immunosorbent assay (ELISA) and are expressed as a percent. Results were compared using a 2-tailed Student t test. RESULTS The percent of SEB-stimulated interleukin-5 (IL-5) secretion (mean ± standard deviation [SD], 339.94% ± 315.48%) between the second and first treatment periods was significantly reduced following exposure to dexamethasone (74.08% ± 26.77%, p < 0.05) and verapamil (119.99% ± 69.32%, p < 0.05). The percent of SEB-stimulated IL-6 secretion (217.53% ± 89.51%) was also significantly reduced following exposure to verapamil (148.82% ± 79.15%, p < 0.05) but not dexamethasone (148.86% ± 145.24%). Finally, the percent of SEB-stimulated thymic stromal lymphopoietin (TSLP) secretion (37.86% ± 18.88%) demonstrated a nonsignificant trend toward reduction with both dexamethasone (31.15% ± 35.28%) and verapamil (20.14% ± 12.10%). CONCLUSION Although the mechanism has yet to be fully understood, L-type CCBs are capable of reducing inflammation in multiple tissues. Verapamil was specifically found to reduce airway goblet cell hyperplasia and eosinophilic infiltration in a murine asthma model. Our data support these findings suggesting that verapamil can modulate T-helper cell type 2 (Th2)-associated cytokine secretion in sinonasal polyp explants. This data points to a possible therapeutic role for CCBs in the management of CRSwNP.
Collapse
Affiliation(s)
- Benjamin S Bleier
- Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA
| | | | | | | |
Collapse
|
23
|
Kocharyan A, Feldman R, Singleton A, Han X, Bleier BS. P-glycoprotein inhibition promotes prednisone retention in human sinonasal polyp explants. Int Forum Allergy Rhinol 2014; 4:734-8. [DOI: 10.1002/alr.21361] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 05/21/2014] [Accepted: 05/29/2014] [Indexed: 12/29/2022]
Affiliation(s)
- Armine Kocharyan
- Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston MA
| | - Rachel Feldman
- Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston MA
| | - Amy Singleton
- Department of Biomedical Engineering; Boston University; Boston MA
| | - Xue Han
- Department of Biomedical Engineering; Boston University; Boston MA
| | - Benjamin S. Bleier
- Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston MA
| |
Collapse
|
24
|
Bleier BS, Nocera AL, Iqbal H, Hoang JD, Alvarez U, Feldman RE, Han X. P-glycoprotein promotes epithelial T helper 2-associated cytokine secretion in chronic sinusitis with nasal polyps. Int Forum Allergy Rhinol 2014; 4:488-94. [DOI: 10.1002/alr.21316] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 01/17/2014] [Accepted: 01/28/2014] [Indexed: 12/20/2022]
Affiliation(s)
| | - Angela L. Nocera
- Department of Biomedical Engineering; Boston University; Boston MA
| | - Hufsa Iqbal
- Department of Biomedical Engineering; Boston University; Boston MA
| | - John D. Hoang
- Department of Biomedical Engineering; Boston University; Boston MA
| | - Ulises Alvarez
- Department of Biomedical Engineering; Boston University; Boston MA
| | - Rachel E. Feldman
- Massachusetts Eye and Ear Infirmary; Harvard Medical School; Boston MA
| | - Xue Han
- Department of Biomedical Engineering; Boston University; Boston MA
| |
Collapse
|
25
|
Kennedy DW. In this edition of the International Forum of Allergy and Rhinology. Int Forum Allergy Rhinol 2013; 3:431-2. [PMID: 23801659 DOI: 10.1002/alr.21186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
26
|
Feldman RE, Lam AC, Sadow PM, Bleier BS. P-glycoprotein is a marker of tissue eosinophilia and radiographic inflammation in chronic rhinosinusitis without nasal polyps. Int Forum Allergy Rhinol 2013; 3:684-7. [PMID: 23677641 DOI: 10.1002/alr.21176] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2013] [Revised: 03/29/2013] [Accepted: 04/09/2013] [Indexed: 11/07/2022]
Abstract
BACKGROUND P-glycoprotein (P-gp) is a membrane-bound efflux pump that is upregulated in chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP) and participates in epithelial cytokine secretion. Eosinophilic CRS (ECRS) shares a similar cytokine profile with CRSwNP and is associated with significant inflammation and poor surgical outcomes. The goal of this study is to determine if P-gp expression is associated with degree of eosinophilia and severity of radiographic inflammation in patients with CRS without polyps (CRSsNP). METHODS An institutional review board (IRB)-approved study using sinus tissue in 39 steroid-naive patients with CRS. P-gp expression was calculated using quantitative fluorescent immunohistochemistry (Q-FIHC) to generate an epithelial to background staining ratio. Patients were stratified into low and high epithelial expression groups (<3 and ≥3, respectively). Average eosinophils per high powered field (hpf) and Lund-Mackay scores were calculated and compared with P-gp staining ratios using a 2-tailed Student t test. RESULTS Among the 39 patients, 7 (17.95%) had high P-gp expression ratios (mean ± SD, 4.86 ± 1.33) while 32 (82.05%) had low expression ratios (1.91 ± 0.45). The number of eosinophils/hpf were significantly greater in the high P-gp expression group as compared to the low expression group (62.38 ± 83.69 vs 5.11 ± 10.12, p = 0.0003). The Lund-Mackay scores were significantly greater in the high P-gp expression group as compared to the low expression group (11.86 ± 2.79 vs 6.84 ± 4.19, p = 0.005). CONCLUSION P-gp is known to be overexpressed in CRSwNP. This study suggests that among patients with CRSsNP, P-gp is similarly overexpressed in those with high tissue eosinophilia and correlates with severity of radiographic inflammation.
Collapse
Affiliation(s)
- Rachel E Feldman
- Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA 02114, USA
| | | | | | | |
Collapse
|