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Lowell ER, Borders JC, Perry SE, Dakin AE, Sevitz JS, Kuo SH, Troche MS. Sensorimotor Cough Dysfunction in Cerebellar Ataxias. CEREBELLUM (LONDON, ENGLAND) 2023:10.1007/s12311-023-01635-0. [PMID: 38032397 PMCID: PMC11145628 DOI: 10.1007/s12311-023-01635-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/11/2023] [Indexed: 12/01/2023]
Abstract
Cerebellar ataxias are neurological conditions with a high prevalence of aspiration pneumonia and dysphagia. Recent research shows that sensorimotor cough dysfunction is associated with airway invasion and dysphagia in other neurological conditions and may increase the risk of pneumonia. Therefore, this study aimed to characterize sensorimotor cough function and its relationship with ataxia severity. Thirty-seven participants with cerebellar ataxia completed voluntary and/or reflex cough testing. Ataxia severity was assessed using the Scale for the Assessment and Rating of Ataxia (SARA). Linear multilevel models revealed voluntary cough peak expiratory flow rate (PEFR) estimates of 2.61 L/s and cough expired volume (CEV) estimates of 0.52 L. Reflex PEFR (1.82 L/s) and CEV (0.34 L) estimates were lower than voluntary PEFR and CEV estimates. Variability was higher for reflex PEFR (15.74% coefficient of variation [CoV]) than voluntary PEFR (12.13% CoV). 46% of participants generated at least two, two-cough responses following presentations of reflex cough stimuli. There was a small inverse relationship between ataxia severity and voluntary PEFR (β = -0.05, 95% CI: -0.09 - -0.01 L) and ataxia severity and voluntary CEV (β = -0.01, 95% CI: -0.02 - -0.004 L/s). Relationships between reflex cough motor outcomes (PEFR β = 0.03, 95% CI: -0.007-0.07 L/s; CEV β = 0.007, 95% CI: -0.004-0.02 L) and ataxia severity were not statistically robust. Results indicate that voluntary and reflex cough sensorimotor dysfunction is present in cerebellar ataxias and that increased severity of ataxia symptoms may impact voluntary cough function.
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Affiliation(s)
- Emilie R Lowell
- Laboratory for the Study of Upper Airway Dysfunction, Teachers College, Columbia University, 525 W 120th St, New York, NY, 10027, USA
| | - James C Borders
- Laboratory for the Study of Upper Airway Dysfunction, Teachers College, Columbia University, 525 W 120th St, New York, NY, 10027, USA
| | - Sarah E Perry
- Department of Medicine, University of Otago Christchurch, Christchurch, New Zealand
- New Zealand Brain Research Institute, Christchurch, New Zealand
- University of Canterbury Rose Centre for Stroke Recovery & Research at St. George's Medical Centre, Christchurch, New Zealand
| | - Avery E Dakin
- Laboratory for the Study of Upper Airway Dysfunction, Teachers College, Columbia University, 525 W 120th St, New York, NY, 10027, USA
| | - Jordanna S Sevitz
- Laboratory for the Study of Upper Airway Dysfunction, Teachers College, Columbia University, 525 W 120th St, New York, NY, 10027, USA
| | - Sheng-Han Kuo
- Department of Neurology, Columbia University Medical Center, New York, NY, USA
- The Initiative for Columbia Ataxia and Tremor, Columbia University, New York, NY, USA
| | - Michelle S Troche
- Laboratory for the Study of Upper Airway Dysfunction, Teachers College, Columbia University, 525 W 120th St, New York, NY, 10027, USA.
- Department of Medicine, University of Otago Christchurch, Christchurch, New Zealand.
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Novaleski CK, Hegland KW, Aleksandruk MM, Dalton PH, Mainland JD. Characterization of Ethyl Butyrate-Induced Cough Before and After Breath Control Techniques in Healthy Adults. AMERICAN JOURNAL OF SPEECH-LANGUAGE PATHOLOGY 2023; 32:675-687. [PMID: 36634229 PMCID: PMC10171842 DOI: 10.1044/2022_ajslp-22-00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/23/2022] [Accepted: 10/22/2022] [Indexed: 05/12/2023]
Abstract
PURPOSE Methods for cough elicitation frequently involve aerosolized tussive agents. Here, we sought to determine whether healthy individuals demonstrate a quantifiable cough response after inhaling a volatile ester and if breath control techniques modify this chemically induced cough response. METHOD Sixty adult male and female participants inhaled prepared liquid dilutions of ethyl butyrate dissolved in paraffin oil at 20%, 40%, and 60% v/v concentrations in triplicate, with presentation order randomized. We delivered stimuli through a face mask connected to an olfactometer and respiratory pneumotachograph. Participants rated sensations of their urge to cough and pleasantness of the odor while cough airflow was measured. Following baseline testing, participants were randomized to implement pursed-lip breathing or slow-paced breathing after inhaling ethyl butyrate to determine the effects of breath control on cough measures. RESULTS Inhaled ethyl butyrate elicited cough in 70% of participants. Higher concentrations of ethyl butyrate resulted in significantly greater sensation of the urge to cough, F(2, 80) = 10.72, p < .001, and significantly more generated coughs, F(2, 63) = 13.14, p < .001. Compared to baseline, participants rated significantly decreased urge to cough during breath control techniques, F(1, 40) = 11.01, p = .0019. No significant changes were observed in the number of generated coughs between baseline and breath control techniques, F(1, 31) = 7.23, p = .01. CONCLUSIONS Airborne ethyl butyrate is a tussigenic agent in humans. Our findings provide opportunities for future research directions in normal and disordered cough responses to volatile compounds.
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Affiliation(s)
| | - Karen Wheeler Hegland
- Department of Speech, Language, and Hearing Sciences, University of Florida, Gainesville
| | - Mikala M. Aleksandruk
- Monell Chemical Senses Center, Philadelphia, PA
- Health Services, College of General Studies, University of Pittsburgh, PA
| | | | - Joel D. Mainland
- Monell Chemical Senses Center, Philadelphia, PA
- Department of Neuroscience, University of Pennsylvania, Philadelphia
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Cheng J, Sha Z, Zhang R, Ge J, Chen P, Kuang X, Chang J, Ren K, Luo X, Chen S, Gou X. L22 ribosomal protein is involved in dynamin-related protein 1-mediated gastric carcinoma progression. Bioengineered 2022; 13:6650-6664. [PMID: 35230214 PMCID: PMC9208493 DOI: 10.1080/21655979.2022.2045842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Mitochondrial fission depends on dynamin-related protein 1 (Drp1) guanosine triphosphatase activity. Although there is some association between Drp1 and gastric cancer, the detailed mechanism remains largely unknown. In this study, the elevation of Drp1 was observed in human gastric carcinoma specimens including gastric mixed adenocarcinoma tissues, gastric intestinal-type adenocarcinoma tissues, and human gastric cancer cells compared to normal control, but not in diffuse gastric adenocarcinoma tissues. Gastric cancer patients with high Drp1 harbored advanced pathological stages and poor progression-free survival probability compared to those with low Drp1. Mdivi-1-mediated inactivation of Drp1 robustly inhibited cell viability and tumor growth but conversely induced cell apoptotic events in vitro and in vivo. Based on the Encyclopedia of RNA Interactomes Starbase, L22 ribosomal protein (RPL22) was recognized as the potential downstream oncogene of Drp1. Clinically, the significant correlation of Drp1 and RPL22 was also verified. Mechanistically, Drp1 inactivation did not affect the accumulation of RPL22 in gastric carcinoma. However, the intracellular distribution of RPL22 had an endonuclear location in Drp1-inactivated tumors. Of note, Drp1 inactivation notably reduced the expression of cytoplasmic RPL22 and increased its nuclear level in gastric cancer cells. Collectively, Drp1 had high levels in human gastric carcinoma specimens and could serve as a potential diagnostic and prognostic biomarker in gastric carcinoma. The Drp1 inactivation-mediated anti-proliferative and pro-apoptosis effects on gastric cancer were possibly associated with nuclear import of RPL22. This knowledge may provide new therapeutic tools for treating gastric carcinoma via targeting mitochondria-related ribosome pathway.
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Affiliation(s)
- Jianghong Cheng
- Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical UniversityChina , Xi'an, China
| | - Zizhuo Sha
- Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical UniversityChina , Xi'an, China
| | - Ruisan Zhang
- Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical UniversityChina , Xi'an, China
| | - Jinghao Ge
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Peng Chen
- Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical UniversityChina , Xi'an, China
| | - Xuefeng Kuang
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Jiazhi Chang
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Kai Ren
- Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical UniversityChina , Xi'an, China
| | - Xianyang Luo
- Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China.,Xiamen Key Laboratory of Otolaryngology Head and Neck Surgery, Xiamen, China
| | - Shuai Chen
- Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China.,Xiamen Key Laboratory of Otolaryngology Head and Neck Surgery, Xiamen, China
| | - Xingchun Gou
- Shaanxi Key Laboratory of Brain Disorders and School of Basic Medical Science, Xi'an Medical UniversityChina , Xi'an, China.,Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China.,Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, China
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Mei H, Gu W, Ran L, Wen S, Yu L, Xu X. Evaluation methods and influencing factors of cough sensitivity. Ther Adv Respir Dis 2022; 16:17534666211070134. [PMID: 35114864 PMCID: PMC8819802 DOI: 10.1177/17534666211070134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Increased cough sensitivity is an important mechanism of chronic cough, and the evaluation of cough sensitivity helps understand the mechanism of cough and explore better methods to reduce cough. Evaluation methods may be direct or indirect. Direct methods include mechanical stimulation and chemical stimulation, and indirect methods include laryngeal reflex test, questionnaires, and brain functional magnetic resonance imaging (fMRI). Chemical stimulation is the most common method, while the capsaicin cough challenge test is proven and widely used. In this article, we will compare evaluation methods and explore influencing factors of cough sensitivity.
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Affiliation(s)
- Hao Mei
- Department of Pulmonary and Critical Care Medicine, Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Wenhua Gu
- Department of Pulmonary and Critical Care Medicine, Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Linxin Ran
- Department of Pulmonary and Critical Care Medicine, Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Siwan Wen
- Department of Pulmonary and Critical Care Medicine, Tongji University School of Medicine, Tongji University, Shanghai, China
| | - Li Yu
- Department of Pulmonary and Critical Care Medicine, Tongji University School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai 200065, China
| | - Xianghuai Xu
- Department of Pulmonary and Critical Care Medicine, Tongji University School of Medicine, Tongji University, No. 389 Xincun Road, Shanghai 200065, China
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Toukan N, Kulnik ST, Lewko A, ElShaer A. Therapeutic applications of capsaicin in humans to target conditions of the respiratory system: A scoping review. Respir Med 2022; 194:106772. [DOI: 10.1016/j.rmed.2022.106772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/15/2021] [Accepted: 02/11/2022] [Indexed: 02/06/2023]
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Erfani M, Zamani M, Tamaddon G, Hosseini SV, Mokarram P. Expression and methylation status of BTG2, PPP1CA, and PEG3 genes in colon adenocarcinoma cell lines: promising treatment targets. GASTROENTEROLOGY AND HEPATOLOGY FROM BED TO BENCH 2022; 15:395-405. [PMID: 36762213 PMCID: PMC9876769 DOI: 10.22037/ghfbb.v15i4.2577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/30/2022] [Indexed: 02/11/2023]
Abstract
Aim This study investigated the association between methylation status and expression levels of BTG2, PPP1CA, and PEG3 genes in colon cancer. Background Aberrant DNA methylation is one of the most important epigenetic modifications in the development of cancer. Evidence indicates that hypermethylation of various tumor suppressor genes could be a potential mechanism of colon tumorigenesis. Methods The expression levels of BTG2, PPP1CA, and PEG3 genes were evaluated in HT-29/219, HCT116, SW48, SW742, SW480, and LS180 cell lines using quantitative Real-Time PCR. The methylation status of BTG2 and PPP1CA was determined by methylation-specific PCR (MSP) method, and the methylation pattern of PEG3 was evaluated by bisulfite sequencing PCR (BSP). To investigate the effect of methylation on the expression of these genes, all colon cancer cell lines were treated by 5-Azacitidine (5-Aza) and/or Trichostatin A (TSA). Results The expression levels of BTG2, PPP1CA, and PEG3 were highly heterogeneous and quantitatively correlated to their promoter methylation status in the studied colon cancer cell lines. Treatment by 5-Aza and/or TSA increased the expression of the above-named genes in colon cancer cell lines. Conclusion Overall, it seems that BTG2, PPP1CA, and PEG3 act as tumor suppressor genes in colon cancer, and methylation is a potential mechanism for their loss of expression. Therefore, these genes may be considered as suitable targets for demethylation approaches and, eventually, colon cancer treatment. Combined treatment by 5-Aza and TSA may be a promising therapeutic strategy for colon cancer treatment. Further studies may contribute to confirm these results.
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Affiliation(s)
- Mehran Erfani
- Department of Biochemistry, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran, Department of Biochemistry, School of Medicine, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
| | - Mozhdeh Zamani
- Colorectal Research Center, Shiraz University of Medical Sciences, Shiraz, Iran, Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Gholamhossein Tamaddon
- Department of Clinical Laboratory Sciences, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Pooneh Mokarram
- Department of Biochemistry, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran, Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Profant O, Bureš Z, Balogová Z, Betka J, Fík Z, Chovanec M, Voráček J. Decision making on vestibular schwannoma treatment: predictions based on machine-learning analysis. Sci Rep 2021; 11:18376. [PMID: 34526580 PMCID: PMC8443556 DOI: 10.1038/s41598-021-97819-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/25/2021] [Indexed: 02/08/2023] Open
Abstract
Decision making on the treatment of vestibular schwannoma (VS) is mainly based on the symptoms, tumor size, patient's preference, and experience of the medical team. Here we provide objective tools to support the decision process by answering two questions: can a single checkup predict the need of active treatment?, and which attributes of VS development are important in decision making on active treatment? Using a machine-learning analysis of medical records of 93 patients, the objectives were addressed using two classification tasks: a time-independent case-based reasoning (CBR), where each medical record was treated as independent, and a personalized dynamic analysis (PDA), during which we analyzed the individual development of each patient's state in time. Using the CBR method we found that Koos classification of tumor size, speech reception threshold, and pure tone audiometry, collectively predict the need for active treatment with approximately 90% accuracy; in the PDA task, only the increase of Koos classification and VS size were sufficient. Our results indicate that VS treatment may be reliably predicted using only a small set of basic parameters, even without the knowledge of individual development, which may help to simplify VS treatment strategies, reduce the number of examinations, and increase cause effectiveness.
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Affiliation(s)
- Oliver Profant
- grid.424967.a0000 0004 0404 6946Department of Auditory Neuroscience, Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
| | - Zbyněk Bureš
- grid.6652.70000000121738213Department of Cognitive Systems and Neurosciences, Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University, Jugoslávských partyzánů 1580/3, 160 00 Prague 6, Czech Republic
| | - Zuzana Balogová
- grid.4491.80000 0004 1937 116XDepartment of Otorhinolaryngology, 3rd Faculty of Medicine, University Hospital Královské Vinohrady, Charles University in Prague, Prague, Czech Republic
| | - Jan Betka
- grid.4491.80000 0004 1937 116XDepartment of Otorhinolaryngology and Head and Neck Surgery, 1st Faculty of Medicine, University Hospital Motol, Charles University in Prague, Prague, Czech Republic
| | - Zdeněk Fík
- grid.4491.80000 0004 1937 116XDepartment of Otorhinolaryngology and Head and Neck Surgery, 1st Faculty of Medicine, University Hospital Motol, Charles University in Prague, Prague, Czech Republic
| | - Martin Chovanec
- grid.4491.80000 0004 1937 116XDepartment of Otorhinolaryngology, 3rd Faculty of Medicine, University Hospital Královské Vinohrady, Charles University in Prague, Prague, Czech Republic
| | - Jan Voráček
- Faculty of Management, Prague University of Economics and Business, Jindrichuv Hradec, Czech Republic
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Meneur C, Eswaran S, Adiga D, S S, G NK, Mallya S, Chakrabarty S, Kabekkodu SP. Analysis of Nuclear Encoded Mitochondrial Gene Networks in Cervical Cancer. Asian Pac J Cancer Prev 2021; 22:1799-1811. [PMID: 34181336 PMCID: PMC8418845 DOI: 10.31557/apjcp.2021.22.6.1799] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 06/25/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Cervical cancer (CC) is one of the most common female cancers in many developing and underdeveloped countries. High incidence, late presentation, and mortality suggested the need for molecular markers. Mitochondrial defects due to abnormal expression of nuclear-encoded mitochondrial genes (NEMG) have been reported during cancer progression. Nevertheless, the application of NEMG for the prognosis of CC is still elusive. Herein, we aimed to investigate the associations between NEMG and CC prognosis. MATERIALS AND METHODS The differentially expressed genes (DEG) in the TCGA-CESC dataset and NEMGs were retrieved from TACCO and Mitocarta2.0 databases, respectively. The impact of methylation on NEMG expression were predicted using DNMIVD and UALCAN tools. HCMDB tool was used to predict genes having metastatic potential. The prognostic models were constructed using DNMIVD, TACCO, GEPIA2, and SurvExpress. The functional enrichment analysis (FEA) was performed using clusterProfiler. The protein-protein interaction network (PPIN) was constructed to identify the hub genes (HG) using String and CytoHubba tools. Independent validation of the HG was performed using Oncomine and Human Protein Atlas databases. The druggable genes were predicted using DGIdb. RESULTS Among the 52 differentially expressed NEMG, 15 were regulated by DNA methylation. The expression level of 16, 10, and 7 has the potential for CC staging, prediction of metastasis, and prognosis. Moreover, 1 driver gene and 16 druggable genes were also identified. The FEA identified the enrichment of cancer-related pathways, including AMPK and carbon metabolism in cancer. The combined expression of 10 HG has been shown to affect patient survival. CONCLUSION Our findings suggest that the abnormal expression of NEMGs may play a critical role in CC development and progression. The genes identified in our study may serve as a prognostic indicator and therapeutic target in CC. .
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Affiliation(s)
- Cecile Meneur
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
- La Rochelle University, Avenue Albert Einstein, 17031, La Rochelle, France.
| | - Sangavi Eswaran
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
| | - Divya Adiga
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
| | - Sriharikrishnaa S
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
| | - Nadeem Khan G
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
| | - Sandeep Mallya
- Department of Bioinformatics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
| | - Shama Prasada Kabekkodu
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
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Liu Z, Wang P, Lu S, Guo R, Gao W, Tong H, Yin Y, Han X, Liu T, Chen X, Zhu MX, Yang Z. Liquiritin, a novel inhibitor of TRPV1 and TRPA1, protects against LPS-induced acute lung injury. Cell Calcium 2020; 88:102198. [PMID: 32388008 DOI: 10.1016/j.ceca.2020.102198] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 12/16/2022]
Abstract
TRPV1 and TRPA1 are cation channels that play key roles in inflammatory signaling pathways. They are co-expressed on airway C-fibers, where they exert synergistic effects on causing inflammation and cough. Licorice, the root of Glycyrrhiza uralensis, has been widely used in China as an anti-inflammatory and anti-coughing herb. To learn if TRPV1 and TRPA1 might be key targets of the anti-inflammatory and antitussive effects of licorice, we examined liquiritin, the main flavonoid compound and active ingredient of licorice, on agonist-evoked TRPV1 and TRPA1 activation. Liquiritin inhibited capsaicin- and allyl isothiocyanate-evoked TRPV1 and TRPA1 whole-cell currents, respectively, with a similar potency and maximal inhibition. In a mouse acute lung injury (ALI) model induced by the bacterial endotoxin lipopolysaccharide, which involves both TRPV1 and TRPA1, an oral gavage of liquiritin prevented tissue damage and suppressed inflammation and the activation of NF-κB signaling pathway in the lung tissue. Liquiritin also suppressed LPS-induced increase in TRPV1 and TRPA1 protein expression in the lung tissue, as well as TRPV1 and TRPA1 mRNA levels in cells contained in mouse bronchoalveolar lavage fluid. In cultured THP-1 monocytes, liguiritin, or TRPV1 and TRPA1 antagonists capsazepine and HC030031, respectively, diminished not only cytokine-induced upregulation of NF-κB function but also TRPV1 and TRPA1 expression at both protein and mRNA levels. We conclude that the anti-inflammatory and antitussive effects of liquiritin are mediated by the dual inhibition of TRPV1 and TRPA1 channels, which are upregulated in nonneuronal cells through the NF-κB pathway during airway inflammation via a positive feedback mechanism.
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Affiliation(s)
- Zhenhong Liu
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China; School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Pengwen Wang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - Shanshan Lu
- The Brain Science Center, Beijing Institute of Basic Medical Sciences, Beijing 100850, China
| | - Rong Guo
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Haiying Tong
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yin Yin
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xuezhen Han
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Tiantian Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiangyun Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Michael X Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX 77030, USA.
| | - Zhen Yang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, China.
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Upadhyay E, Mohammad AlMass AA, Dasgupta N, Rahman S, Kim J, Datta M. Assessment of Occupational Health Hazards Due to Particulate Matter Originated from Spices. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16091519. [PMID: 31035724 PMCID: PMC6538991 DOI: 10.3390/ijerph16091519] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/18/2019] [Accepted: 04/23/2019] [Indexed: 11/16/2022]
Abstract
Spices have been known for their various health activities; however, they also possess the allergic potential for the respiratory system and the skin as they are fine particulate matter. Persons involved in spice agriculture and food industries are at greater risk since they are exposed to a considerable amount of combustible dust, which may be the cause of fire and explosion and adversely affect the health. These workers may experience allergy, long-term and short-term respiratory issues including occupational asthma, dermatitis, etc. Some spices induce T cell-based inflammatory reaction upon contact recognition of the antigen. Antigen Presenting Cells (APC) on binding to the causative metabolite results in activation of macrophages by allergen cytokine interleukin (IL)-12 and tumor necrosis factor-beta (TNF). Cross-reactivity for protein allergens is another factor which seems to be a significant trigger for the stimulation of allergic reactions. Thus, it was imperative to perform a systematic review along with bioinformatics based representation of some evident allergens has been done to identify the overall conservation of epitopes. In the present manuscript, we have covered a multifold approach, i.e., to categorize the spice particles based on a clear understanding about nature, origin, mechanisms; to assess metabolic reactions of the particles after exposure as well as knowledge on the conditions of exposure along with associated potential health effects. Another aim of this study is to provide some suggestions to prevent and to control the exposure up to some extent.
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Affiliation(s)
- Era Upadhyay
- Amity institute of Biotechnology, Amity University Rajasthan, Jaipur, Rajasthan 302 002, India.
| | - Afnan Ahmad Mohammad AlMass
- Emergency Medicine Department, King Saud University Medical City, King Saud University, Riyadh 11321, Saudi Arabia.
| | - Nandita Dasgupta
- Department of Biotechnology, Institute of Engineering and Technology, Dr. APJ Abdul Kalam Technical University, Lucknow, Uttar Pradesh 226031, India.
| | - Safikur Rahman
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, 712-749, Korea.
| | - Jihoe Kim
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, 712-749, Korea.
| | - Manali Datta
- Amity institute of Biotechnology, Amity University Rajasthan, Jaipur, Rajasthan 302 002, India.
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