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Shiina T, Suzuki Y, Horii K, Sawamura T, Yuki N, Horii Y, Shimizu Y. Purinergic inhibitory regulation of esophageal smooth muscle is mediated by P2Y receptors and ATP-dependent potassium channels in rats. J Physiol Sci 2024; 74:26. [PMID: 38654149 PMCID: PMC11036717 DOI: 10.1186/s12576-024-00916-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/20/2024] [Indexed: 04/25/2024]
Abstract
Purines such as ATP are regulatory transmitters in motility of the gastrointestinal tract. The aims of this study were to propose functional roles of purinergic regulation of esophageal motility. An isolated segment of the rat esophagus was placed in an organ bath, and mechanical responses were recorded using a force transducer. Exogenous application of ATP (10-100 μM) evoked relaxation of the esophageal smooth muscle in a longitudinal direction under the condition of carbachol (1 μM) -induced precontraction. Pretreatment with a non-selective P2 receptor antagonist, suramin (500 μM), and a P2Y receptor antagonist, cibacron blue F3GA (200 μM), inhibited the ATP (100 μM) -induced relaxation, but a P2X receptor antagonist, pyridoxal phosphate-6-azophenyl-2,4-disulfonic acid (50 μM), did not affect it. A blocker of ATP-dependent potassium channels (KATP channels), glibenclamide (200 μM), inhibited the ATP-induced relaxation and application of an opener of KATP channels, nicorandil (50 μM), produced relaxation. The findings suggest that ATP is involved in inhibitory regulation of the longitudinal smooth muscle in the muscularis mucosae of the rat esophagus via activation of P2Y receptors and then opening of KATP channels.
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Affiliation(s)
- Takahiko Shiina
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
| | - Yuji Suzuki
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kazuhiro Horii
- Division of Biological Principles, Department of Physiology, Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Tomoya Sawamura
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Natsufu Yuki
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yuuki Horii
- Institute for Glyco-Core Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yasutake Shimizu
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
- Department of Basic Veterinary Science, Laboratory of Physiology, Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
- Division of Animal Medical Science, Center for One Medicine Innovative Translational Research (COMIT), Gifu University Institute for Advanced Study, 1-1 Yanagido, Gifu, 501-1193, Japan
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Chen X, Sun Z, Wu Q, Shao L, Bei J, Lin Y, Chen H, Chen S. Resveratrol promotes the differentiation of human umbilical cord mesenchymal stem cells into esophageal fibroblasts via AKT signaling pathway. Int J Immunopathol Pharmacol 2024; 38:3946320241249397. [PMID: 38688472 PMCID: PMC11062234 DOI: 10.1177/03946320241249397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 04/02/2024] [Indexed: 05/02/2024] Open
Abstract
Objectives: Resveratrol has been implicated in the differentiation and development of human umbilical cord mesenchymal stem cells. The differentiation of into esophageal fibroblasts is a promising strategy for esophageal tissue engineering. However, the pharmacological effect and underlying mechanism of resveratrol on human umbilical cord mesenchymal stem cells differentiation are unknown. Here, we investigated the effects and mechanism of resveratrol on the differentiation of human umbilical cord mesenchymal stem cells. Methods: Using a transwell-membrane coculture system to culture human umbilical cord mesenchymal stem cells and esophageal fibroblasts, we examined how resveratrol act on the differentiation of human umbilical cord mesenchymal stem cells. Immunocytochemistry, Sirius red staining, quantitative real-time PCR, and Western blotting were performed to examine collagen synthesis and possible signaling pathways in human umbilical cord mesenchymal stem cells. Results: We found that resveratrol promoted collagen synthesis and AKT phosphorylation. However, co-treatment of cells with resveratrol and the PI3K inhibitor LY294002 inhibited collagen synthesis and AKT phosphorylation. We demonstrated that resveratrol down-regulated the expression of IL-6, TGF-β, caspase-9, and Bax by activating the AKT pathway in human umbilical cord mesenchymal stem cell. Furthermore, resveratrol inhibited phosphorylated NF-ĸB in human umbilical cord mesenchymal stem cells. Conclusion: Our data suggest that resveratrol promotes the differentiation of human umbilical cord mesenchymal stem cells into fibroblasts. The underlying mechanism is associated with the downregulation of IL-6 and TGF-β via the AKT pathway and by inhibiting the NF-ĸB pathway. Resveratrol may be useful for esophageal tissue engineering.
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Affiliation(s)
- Xiujing Chen
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Zihao Sun
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Qian Wu
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Lijuan Shao
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Engineering Research Center for Esophageal Cancer Precision Therapy, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Cancer Immunotherapy of Guangdong High Education Institutes, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory for Monitoring of Adverse Effects Associated with CAR-T Cell Therapies, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jiaxin Bei
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Engineering Research Center for Esophageal Cancer Precision Therapy, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Cancer Immunotherapy of Guangdong High Education Institutes, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory for Monitoring of Adverse Effects Associated with CAR-T Cell Therapies, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yiguang Lin
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Engineering Research Center for Esophageal Cancer Precision Therapy, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Cancer Immunotherapy of Guangdong High Education Institutes, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory for Monitoring of Adverse Effects Associated with CAR-T Cell Therapies, Guangdong Pharmaceutical University, Guangzhou, China
- Department of Traditional Chinese Medicine, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Central Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Research and Development Division, Guangzhou Anjie Biomedical Technology Co., Ltd., Guangzhou, China
| | - Hongjie Chen
- Department of Traditional Chinese Medicine, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Size Chen
- Department of Immuno-Oncology, First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Engineering Research Center for Esophageal Cancer Precision Therapy, Guangdong Pharmaceutical University, Guangzhou, China
- Key Laboratory of Cancer Immunotherapy of Guangdong High Education Institutes, Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Provincial Key Laboratory for Monitoring of Adverse Effects Associated with CAR-T Cell Therapies, Guangdong Pharmaceutical University, Guangzhou, China
- Central Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
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Zhao Y, Ma T, Zhang Z, Chen X, Zhou C, Zhang L, Zou D. Resolvin D1 attenuates acid-induced DNA damage in esophageal epithelial cells and rat models of acid reflux. Eur J Pharmacol 2021; 912:174571. [PMID: 34656605 DOI: 10.1016/j.ejphar.2021.174571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 11/15/2022]
Abstract
The role of resolvin D1 (RvD1) in gastroesophageal reflux disease (GERD) remains largely unknown. Here, we investigated the potential role of RvD1 in acid-induced DNA damage in esophageal epithelial cells, patients with refractory GERD and a rat model of acid reflux. Weak acid exposure induced longer comet tails, reactive oxygen species (ROS) generation, oxidative DNA damage and DNA double-strand breaks (DSBs) in cells and RvD1 (0.1 μM) blocked all these effects. Mechanistic analyses showed that apart from ROS-reducing effects, RvD1 possessed a strong capacity to promote DNA damage repair, augmenting cell cycle checkpoint activity and DSB repair by modulating phosphatase and tensin homolog (PTEN) in cells. We also detected the surface expression of formyl peptide receptor 2 (FPR2), a receptor for RvD1, in the esophageal epithelial cells, and inhibition of FPR2 abrogated the protective effects of RvD1 on cells. Furthermore, a positive correlation between RvD1 and PTEN was observed predominantly in the esophageal epithelium from patients with refractory GERD (r = 0.67, P < 0.05). Additionally, RvD1 administration upregulated PTEN, suppressed DNA DSBs and alleviated microscopic damage in the rat model of gastric reflux. FPR2 gene silencing abolished the therapeutic effects of RvD1 on the rat model. Taken together, RvD1 binding to FPR2 protects the esophageal epithelium from acid reflux-induced DNA damage via a mechanism involving the inhibition of ROS production and facilitation of DSB repair. These findings support RvD1 as a promising approach that may be valuable for the treatment of GERD.
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Affiliation(s)
- Ye Zhao
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Teng Ma
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200030, China
| | - Zhihan Zhang
- Department of Pathology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Xi Chen
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chunhua Zhou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ling Zhang
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
| | - Duowu Zou
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Quilty F, Freeley M, Gargan S, Gilmer J, Long A. Deoxycholic acid induces proinflammatory cytokine production by model oesophageal cells via lipid rafts. J Steroid Biochem Mol Biol 2021; 214:105987. [PMID: 34438042 DOI: 10.1016/j.jsbmb.2021.105987] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/18/2021] [Accepted: 08/21/2021] [Indexed: 11/28/2022]
Abstract
The bile acid component of gastric refluxate has been implicated in inflammation of the oesophagus including conditions such as gastro-oesophageal reflux disease (GORD) and Barrett's Oesophagus (BO). Here we demonstrate that the hydrophobic bile acid, deoxycholic acid (DCA), stimulated the production of IL-6 and IL-8 mRNA and protein in Het-1A, a model of normal oesophageal cells. DCA-induced production of IL-6 and IL-8 was attenuated by pharmacologic inhibition of the Protein Kinase C (PKC), MAP kinase, tyrosine kinase pathways, by the cholesterol sequestering agent, methyl-beta-cyclodextrin (MCD) and by the hydrophilic bile acid, ursodeoxycholic acid (UDCA). The cholesterol-interacting agent, nystatin, which binds cholesterol without removing it from the membrane, synergized with DCA to induce IL-6 and IL-8. This was inhibited by the tyrosine kinase inhibitor genistein. DCA stimulated the phosphorylation of lipid raft component Src tyrosine kinase (Src). while knockdown of caveolin-1 expression using siRNA resulted in a decreased level of IL-8 production in response to DCA. Taken together, these results demonstrate that DCA stimulates IL-6 and IL-8 production in oesophageal cells via lipid raft-associated signaling. Inhibition of this process using cyclodextrins represents a novel therapeutic approach to the treatment of inflammatory diseases of the oesophagus including GORD and BO.
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Affiliation(s)
- Francis Quilty
- School of Pharmacy and Pharmaceutical Science, Trinity College Dublin, Dublin 2, Ireland; Trinity Translational Medicine Institute, Trinity College Dublin, St James's Hospital, Dublin 8, Ireland
| | - Michael Freeley
- School of Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland
| | - Siobhan Gargan
- Trinity Translational Medicine Institute, Trinity College Dublin, St James's Hospital, Dublin 8, Ireland
| | - John Gilmer
- School of Pharmacy and Pharmaceutical Science, Trinity College Dublin, Dublin 2, Ireland; Trinity Translational Medicine Institute, Trinity College Dublin, St James's Hospital, Dublin 8, Ireland
| | - Aideen Long
- Trinity Translational Medicine Institute, Trinity College Dublin, St James's Hospital, Dublin 8, Ireland.
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Kaddumi EG, Khader AA, Tahaineh S. Effect of low-threshold versus high-threshold genitalia stimuli on the cystometry parameters in male rats. Am J Physiol Regul Integr Comp Physiol 2021; 321:R595-R602. [PMID: 34431377 DOI: 10.1152/ajpregu.00081.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 08/17/2021] [Indexed: 11/22/2022]
Abstract
The cross talk between external genitalia and urinary bladder could be used as part of management to certain pathological conditions affecting urinary bladder. Since urinary bladder function is also affected by pathologies of other organs (e.g., colon and esophagus), the effect of genitalia stimuli on parameters of bladder function in normal or under different pathological conditions needs to be characterized. Cystometry recordings in male rats were used to examine the effect of low-threshold (LT) and high-threshold (HT) stimulation of the scrotum and penis on urinary bladder function. These effects were studied in intact, colon irritation (CI), and esophagus irritation (EI) groups. Although HT penile stimulation had a significant inhibitory effect on micturition reflex in all groups, CI hypersensitized the penile-bladder inhibitory reflex. In addition, LT penile stimulation had a significant inhibitory effect on micturition, which was significant in CI group only. On the other hand, HT penile stimulation in CI group significantly increased the timing parameters of cystometry. Whereas LT and HT penile stimuli in EI group had a significantly increasing effect on all pressure parameters of cystometry. The scrotal stimuli had minimal effect on bladder function in all groups except for HT scrotal stimulation in the CI group, where it had a significant inhibitory effect on micturition reflex and significantly increased the maximum pressure and pressure amplitude of micturition cycles. These results show that CI and EI exacerbate the effects of genitalia stimuli, especially penile stimuli, on urinary bladder function.
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Affiliation(s)
- Ezidin G Kaddumi
- Department of Basic Medical Sciences, College of Medicine, Al-Balqa Applied University, Al-Salt, Jordan
| | - Ali Al Khader
- Department of Pathology and Forensic Medicine, College of Medicine, Al-Balqa Applied University, Al-Salt, Jordan
| | - Sakher Tahaineh
- Department of Surgery, College of Medicine, Al-Balqa Applied University, Al-Salt, Jordan
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Horiuchi M, Taguchi K, Hirose W, Tsuchida K, Suzuki M, Taniyama Y, Kamei T, Yamamoto M. Cellular Nrf2 Levels Determine Cell Fate during Chemical Carcinogenesis in Esophageal Epithelium. Mol Cell Biol 2021; 41:e00536-20. [PMID: 33257504 PMCID: PMC8093497 DOI: 10.1128/mcb.00536-20] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/02/2020] [Accepted: 11/16/2020] [Indexed: 12/26/2022] Open
Abstract
Nrf2 is essential for cytoprotection against carcinogens, and through systemic Nrf2 knockout mice, Nrf2-deficient cells were shown to be susceptible to chemical carcinogens and prone to developing cancers. However, the oncogenic potential of Nrf2-deficient epithelial cells surrounded by normal cells in the esophagus could not be assessed by previous models, and the fate of Nrf2-deficient cells in such situations remains elusive. In this study, therefore, we generated mice that harbor almost equal levels of cells with Nrf2 deleted and those with Nrf2 intact in the basal layer of the esophageal epithelium, utilizing inducible Cre-mediated recombination of Nrf2 alleles in adults through moderate use of tamoxifen. In this mouse model, epithelial cells with Nrf2 deleted were maintained with no obvious decrease or phenotypic changes for 12 weeks under unstressed conditions. Upon exposure to the carcinogen 4-nitroquinoline-1-oxide (4NQO), the cells with Nrf2 deleted accumulated DNA damage and selectively disappeared from the epithelium, so almost all 4NQO-induced tumors originated from cells with Nrf2 intact and not from those with Nrf2 deleted. We propose that cells with Nrf2 deleted do not undergo carcinogenesis due to selective elimination upon exposure to 4NQO, indicating that cellular Nrf2 abundance and the epithelial environment determine the cell fate or oncogenic potential of esophageal epithelial cells in 4NQO-induced carcinogenesis.
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Affiliation(s)
- Makoto Horiuchi
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Keiko Taguchi
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Medical Biochemistry, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine (INGEM), Tohoku University, Sendai, Japan
| | - Wataru Hirose
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Kouhei Tsuchida
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
| | - Mikiko Suzuki
- Center for Radioisotope Sciences, Tohoku University, Sendai, Japan
| | - Yusuke Taniyama
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Takashi Kamei
- Department of Surgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Masayuki Yamamoto
- Department of Medical Biochemistry, Tohoku University, Sendai, Japan
- Department of Medical Biochemistry, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine (INGEM), Tohoku University, Sendai, Japan
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Jadcherla SR, Hasenstab KA, Gulati IK, Helmick R, Ipek H, Yildiz V, Wei L. Impact of Feeding Strategies With Acid Suppression on Esophageal Reflexes in Human Neonates With Gastroesophageal Reflux Disease: A Single-Blinded Randomized Clinical Trial. Clin Transl Gastroenterol 2020; 11:e00249. [PMID: 33259163 PMCID: PMC7643906 DOI: 10.14309/ctg.0000000000000249] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Aims were to test hypothesis that esophageal provocation-induced reflexes are superior with acid suppression plus feeding modifications vs acid suppression alone among infants treated for gastroesophageal reflux disease (GERD). METHODS Infants (N = 49, 41.3 ± 2.6 of postmenstrual age) with acid reflux index >3% underwent longitudinal motility testing (weeks 0 and 5) with graded midesophageal provocation to test randomly allocated therapies (4 weeks' proton pump inhibitor [PPI] ± feeding modifications) on sensory-motor aerodigestive reflexes. Feeding modification included restricted fluid volume <140 mL/kg per day, fed over 30 minutes in right lateral position and supine postprandial position. Primary motility outcome was frequency-occurrence of peristaltic reflex. Secondary outcomes included upper esophageal sphincter contractile reflex, lower esophageal sphincter (LES) relaxation reflex, respiratory change, and symptom characteristics. RESULTS Treatment groups did not differ for primary outcome (odds ratio = 0.8, 95% confidence interval 0.4-1.6, P = 0.99) or secondary outcomes (all P > 0.05). For both treatment groups at follow-up, distal esophageal contraction and LES tone decreased, and LES relaxation reflex occurrence is less frequent (all P < 0.05). In a subgroup analysis, comparing infants with PPI washout (N = 40) vs with continued (N = 9) PPI therapy, no differences were noted for aerodigestive reflex response frequency-occurrence (all P > 0.05). DISCUSSION In infants with GERD, feeding modification with acid suppression is not superior to acid suppression alone in modifying aerodigestive reflexes (frequency, sensation, or magnitude). Contiguous areas targeted by GER, i.e., LES and distal esophageal functions, worsened at follow-up for both groups despite PPI therapy. Maturation is likely the key factor for GERD resolution in infants, justifying the use of placebo in clinical trials for objectively determined GERD.
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Affiliation(s)
- Sudarshan R. Jadcherla
- Innovative Infant Feeding Disorders Research Program, Nationwide Children's Hospital, Columbus, Ohio, USA
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
- Division of Neonatology, Nationwide Children's Hospital Columbus, Ohio, USA
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Kathryn A. Hasenstab
- Innovative Infant Feeding Disorders Research Program, Nationwide Children's Hospital, Columbus, Ohio, USA
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Ish K. Gulati
- Innovative Infant Feeding Disorders Research Program, Nationwide Children's Hospital, Columbus, Ohio, USA
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
- Division of Neonatology, Nationwide Children's Hospital Columbus, Ohio, USA
| | - Roseanna Helmick
- Innovative Infant Feeding Disorders Research Program, Nationwide Children's Hospital, Columbus, Ohio, USA
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Haluk Ipek
- Innovative Infant Feeding Disorders Research Program, Nationwide Children's Hospital, Columbus, Ohio, USA
- Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Vedat Yildiz
- Biostatistics Resource at Nationwide Children's Hospital (BRANCH), Columbus, Ohio, USA
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Lai Wei
- Center for Biostatistics, Department of Biomedical Informatics, The Ohio State University College of Medicine, Columbus, Ohio, USA
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Mercado M, Leung L, Gallagher M, Shah S, Kulstad E. Modeling esophageal protection from radiofrequency ablation via a cooling device: an analysis of the effects of ablation power and heart wall dimensions. Biomed Eng Online 2020; 19:77. [PMID: 33046057 PMCID: PMC7552446 DOI: 10.1186/s12938-020-00821-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/24/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Esophageal thermal injury can occur after radiofrequency (RF) ablation in the left atrium to treat atrial fibrillation. Existing methods to prevent esophageal injury have various limitations in deployment and uncertainty in efficacy. A new esophageal heat transfer device currently available for whole-body cooling or warming may offer an additional option to prevent esophageal injury. We sought to develop a mathematical model of this process to guide further studies and clinical investigations and compare results to real-world clinical data. RESULTS The model predicts that the esophageal cooling device, even with body-temperature water flow (37 °C) provides a reduction in esophageal thermal injury compared to the case of the non-protected esophagus, with a non-linear direct relationship between lesion depth and the cooling water temperature. Ablation power and cooling water temperature have a significant influence on the peak temperature and the esophageal lesion depth, but even at high RF power up to 50 W, over durations up to 20 s, the cooling device can reduce thermal impact on the esophagus. The model concurs with recent clinical data showing an 83% reduction in transmural thermal injury when using typical operating parameters. CONCLUSIONS An esophageal cooling device appears effective for esophageal protection during atrial fibrillation, with model output supporting clinical data. Analysis of the impact of ablation power and heart wall dimensions suggests that cooling water temperature can be adjusted for specific ablation parameters to assure the desired myocardial tissue ablation while keeping the esophagus protected.
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Affiliation(s)
- Marcela Mercado
- Bioengineering Department, Engineering Faculty, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellin, Colombia.
| | - Lisa Leung
- St. George's University Hospitals NHS Foundation Trust, St. George's, University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK
| | - Mark Gallagher
- St. George's University Hospitals NHS Foundation Trust, St. George's, University of London, Cranmer Terrace, Tooting, London, SW17 0RE, UK
| | | | - Erik Kulstad
- Southwestern Medical Center, University of Texas, Dallas, TX, USA
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Hu L, Zhang C, Yang K, Li M, Shaker A. Human esophageal myofibroblasts increase squamous epithelial thickness via paracrine mechanisms in an in vitro model of gastroesophageal reflux disease. PLoS One 2020; 15:e0238852. [PMID: 32925965 PMCID: PMC7489504 DOI: 10.1371/journal.pone.0238852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022] Open
Abstract
The pathogenesis of esophageal injury in gastroesophageal reflux disease (GERD) is incompletely understood. We modeled exposure of human esophageal myofibroblasts (HEMFs) to gastroesophageal reflux by repeated treatment with pH 4.5 and pH 4.5 bile salts and determined the effects on the epithelium in a 3D organotypic-like air-liquid interface model. Total, basal and supra-basal thickness of the epithelium were measured and immunostaining for p63, for basal (CK 14) and supra-basal (CK 4) squamous differentiation markers, and for cell proliferation (PCNA) were performed. Epithelial cell proliferation in response to HEMF conditioned media was also assessed in 2D culture. In the 3D organotypic model, total epithelial thickness increased similarly with pH 4.5 and pH 4.5 bile salt treated versus untreated and bile salt treated HEMF conditioned media. Epithelial p63 immunostaining was increased and multilayered. There was expansion of the CK14+ basal and CK4+ supra-basal layers in the epithelium established with conditioned media from pH 4.5 and pH 4.5 bile salt treated HEMFs versus untreated HEMF conditioned media. PCNA + cells per μm of tissue were unchanged in the basal layer across all treatment conditions while PCNA + cells per total DAPI + cells were decreased. In 2D culture, basal epithelial proliferation decreased with conditioned media from pH 4.5 and pH 4.5 bile salt treated HEMFs compared to conditioned media from untreated HEMF conditioned media. Secreted factors from HEMFs treated with acidic stimuli encountered in GERD increase epithelial thickness compared to secreted factors from untreated HEMFs and expand both basal and supra-basal layers. Our findings demonstrate for the first time paracrine regulation of the squamous epithelium from acid stimulated HEMFs. The effects of secreted factors from acid treated HEMFs on basal cell proliferation in this model and the mechanism mediating the increase in epithelial thickness merit further investigation.
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Affiliation(s)
- Liping Hu
- Department of Medicine, Division of Gastroenterology and Hepatology, Keck School of Medicine of USC, Los Angeles, California, United States of America
| | - Chunying Zhang
- Department of Medicine, Division of Gastroenterology and Hepatology, Keck School of Medicine of USC, Los Angeles, California, United States of America
| | - Kevin Yang
- Department of Medicine, Division of Gastroenterology and Hepatology, Keck School of Medicine of USC, Los Angeles, California, United States of America
| | - Meng Li
- USC Libraries Bioinformatics Services, University of Southern California, Los Angeles, California, United States of America
| | - Anisa Shaker
- Department of Medicine, Division of Gastroenterology and Hepatology, Keck School of Medicine of USC, Los Angeles, California, United States of America
- * E-mail:
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10
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Koterazawa Y, Koyanagi-Aoi M, Uehara K, Kakeji Y, Aoi T. Retinoic acid receptor γ activation promotes differentiation of human induced pluripotent stem cells into esophageal epithelium. J Gastroenterol 2020; 55:763-774. [PMID: 32556644 PMCID: PMC7376085 DOI: 10.1007/s00535-020-01695-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 06/02/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND The esophagus is known to be derived from the foregut. However, the mechanisms regulating this process remain unclear. In particular, the details of the human esophagus itself have been poorly researched. In this decade, studies using human induced pluripotent stem cells (hiPSCs) have proven powerful tools for clarifying the developmental biology of various human organs. Several studies using hiPSCs have demonstrated that retinoic acid (RA) signaling promotes the differentiation of foregut into tissues such as lung and pancreas. However, the effect of RA signaling on the differentiation of foregut into esophagus remains unclear. METHODS We established a novel stepwise protocol with transwell culture and an air-liquid interface system for esophageal epithelial cell (EEC) differentiation from hiPSCs. We then evaluated the effect of all-trans retinoic acid (ATRA), which is a retinoic acid receptor (RAR)α, RARβ and RARγ agonist, on the differentiation from the hiPSC-derived foregut. Finally, to identify which RAR subtype was involved in the differentiation, we used synthetic agonists and antagonists of RARα and RARγ, which are known to be expressed in esophagus. RESULTS We successfully generated stratified layers of cells expressing EEC marker genes that were positive for lugol staining. The enhancing effect of ATRA on EEC differentiation was clearly demonstrated with quantitative reverse transcription polymerase chain reaction, immunohistology, lugol-staining and RNA sequencing analyses. RARγ agonist and antagonist enhanced and suppressed EEC differentiation, respectively. RARα agonist had no effect on the differentiation. CONCLUSION We revealed that RARγ activation promotes the differentiation of hiPSCs-derived foregut into EECs.
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Affiliation(s)
- Yasufumi Koterazawa
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of iPS Cell Applications, Graduate School of Medicine, Kobe University, Kobe, Japan
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Michiyo Koyanagi-Aoi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of iPS Cell Applications, Graduate School of Medicine, Kobe University, Kobe, Japan
- Center for Human Resource Development for Regenerative Medicine, Kobe University Hospital, Kobe, Japan
| | - Keiichiro Uehara
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
- Department of iPS Cell Applications, Graduate School of Medicine, Kobe University, Kobe, Japan
- Division of Pathology, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Yoshihiro Kakeji
- Division of Gastrointestinal Surgery, Department of Surgery, Graduate School of Medicine, Kobe University, Kobe, Japan
| | - Takashi Aoi
- Division of Advanced Medical Science, Graduate School of Science, Technology and Innovation, Kobe University, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
- Department of iPS Cell Applications, Graduate School of Medicine, Kobe University, Kobe, Japan.
- Center for Human Resource Development for Regenerative Medicine, Kobe University Hospital, Kobe, Japan.
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11
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Ishikura S, Kondo T, Murai T, Ozawa Y, Yanagi T, Sugie C, Miyakawa A, Shibamoto Y. Definitive chemoradiotherapy for squamous cell carcinoma of the esophagus: outcomes for borderline-resectable disease. J Radiat Res 2020; 61:464-469. [PMID: 32249307 PMCID: PMC7299256 DOI: 10.1093/jrr/rraa008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/15/2020] [Indexed: 05/14/2023]
Abstract
Definitive chemoradiotherapy (dCRT) is the standard treatment for unresectable esophageal cancer. Induction chemotherapy has been actively investigated for borderline-resectable and unresectable disease, but the superiority over dCRT has yet to be confirmed. The purpose of this study was to evaluate the outcome of dCRT with special interest in borderline-resectable disease. Patients with esophageal cancer treated with dCRT between January 2004 and November 2016 were included in this retrospective analysis. Chemotherapy consisted of two cycles of cisplatin (70-75 mg/m2) on day 1 and 5-fluorouracil (700-1000 mg/m2 per day) on days 1-4 or low-dose cisplatin (10 mg/m2 per day) and 5-fluorouracil (175 mg/m2 per day) for 20 days. Radiotherapy was given with a daily fraction of 1.8-2 Gy to a total dose of 50-70 Gy. A total of 104 patients were included: 34 were resectable, 35 were borderline-resectable and 35 were unresectable. Complete response was achieved in 44 patients (42%). Eighteen patients (17%) suffered Grade 2 or greater cardiopulmonary toxicity and seven patients (7%) suffered Grade 3 cardiopulmonary toxicity. At the time of this analysis, 59 patients were dead and 45 were censored. The 3-year overall survival proportions for resectable, borderline-resectable and unresectable patients were 64%, 46% and 21%, respectively. The overall survival for borderline-resectable patients with complete response and noncomplete response was significantly different (P < 0.001), with 3-year survival of 70% and 8%, respectively. The overall survival for complete response patients with borderline-resectable disease was encouraging. Further investigation to find a subgroup fit for esophagus-preserving treatment is warranted.
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Affiliation(s)
- Satoshi Ishikura
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
- Corresponding author. Department of Radiology, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan. Tel: +81-52-853-8276; Fax: +81-52-852-5244;
| | - Takuhito Kondo
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Taro Murai
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Yoshiyuki Ozawa
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Takeshi Yanagi
- Department of Proton, Narita Memorial Proton Center, Toyohashi, Aichi 441-8021, Japan
| | - Chikao Sugie
- Department of Radiology, Nagoya Daini Red Cross Hospital, Nagoya, Aichi 466-8650, Japan
| | - Akifumi Miyakawa
- Department of Radiation Oncology, National Hospital Organization Nagoya Medical Center, Nagoya, Aichi 460-0001, Japan
| | - Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
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Papamitsou T, Sotiriou S, Papakoulas A, Toskas A, Kamperis D, Karachrysafi S, Dietrich EM, Lialiaris S, Sioga A. Alendronate effect in esophagus, stomach and liver: an animal based pathological study. Histol Histopathol 2020; 35:417-422. [PMID: 31502656 DOI: 10.14670/hh-18-161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bisphosphonates are commonly used in clinical practice. Their effectiveness is indisputable, however their adverse effects, especially in the GI tract, are still controversial. In our report, we demonstrate pathological findings of the effect of systematic alendronate administration in esophagus, stomach and the liver of an in-vivo animal model of 15 Wistar rats. Light microscopy with immunohistochemistry and electron microscopy were used. Microscopic findings of inflammation of the stomach and mild hepatic dysfunction were observed. Conclusively, alendronate can potentially affect gastric mucosa and liver function on this animal experimental model.
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Affiliation(s)
- Theodora Papamitsou
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece.
| | - Sotiris Sotiriou
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Apostolos Papakoulas
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Alexandros Toskas
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Dimitrios Kamperis
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Sofia Karachrysafi
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | - Eva-Maria Dietrich
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
| | | | - Antonia Sioga
- Laboratory of Histology-Embryology, Aristotle University of Thessaloniki (AUTH), Thessaloniki, Greece
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Yin X, Wu H, Zhang B, Zhu N, Chen T, Ma X, Zhang L, Lv L, Zhang M, Wang F, Tang X. Tojapride prevents CaSR-mediated NLRP3 inflammasome activation in oesophageal epithelium irritated by acidic bile salts. J Cell Mol Med 2020; 24:1208-1219. [PMID: 31859410 PMCID: PMC6991659 DOI: 10.1111/jcmm.14631] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 06/23/2019] [Accepted: 08/06/2019] [Indexed: 12/11/2022] Open
Abstract
Impairment of the oesophageal epithelium in patients with reflux oesophagitis (RE) is a cytokine-mediated injury rather than a chemical burn. The present study was conducted to explore CaSR/NLRP3 inflammasome pathway activation and cytokines IL-1β and IL-18 release in oesophageal epithelia injured by refluxates and the effects of Tojapride on that signal regulation. Using a modified RE rat model with Tojapride administration and Tojapride-pretreated SV40-immortalized human oesophageal epithelial cells (HET-1A) exposed to acidic bile salts pretreated with Tojapride, we evaluated the therapeutic effects of Tojapride on oesophageal epithelial barrier function, the expression of CaSR/NLRP3 inflammasome pathway-related proteins and the release of downstream cytokines in response to acidic bile salt irritation. In vivo, Tojapride treatment ameliorated the general condition and pathological lesions of the oesophageal epithelium in modified RE rats. In addition, Tojapride effectively blocked the CaSR-mediated NLRP3 inflammasome activation in modified RE rats. In vitro, Tojapride treatment can reverse the harmful effect of acidic bile salts, which reduced transepithelial electrical resistance (TEER), up-regulated the CaSR-mediated NLRP3 inflammasome pathway and increased caspase-1 activity, LDH release and cytokines secretion. Taken together, these data show that Tojapride can prevent CaSR-mediated NLRP3 inflammasome activation and alleviate oesophageal epithelial injury induced by acidic bile salt exposure.
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Affiliation(s)
- Xiao‐Lan Yin
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Hao‐Meng Wu
- Department of Gastroenterology, Guangzhou Higher Education Mega CenterThe Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Xiao‐gu‐wei JieGuangzhouChina
| | - Bei‐Huang Zhang
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Ning‐Wei Zhu
- Department of PharmacyZhejiang Pharmaceutical CollegeNingboChina
| | - Ting Chen
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Xiang‐Xue Ma
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Li‐Ying Zhang
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Lin Lv
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Min Zhang
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Feng‐Yun Wang
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
| | - Xu‐Dong Tang
- Department of GastroenterologyChina Academy of Chinese Medical SciencesXiyuan HospitalBeijingChina
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14
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Jia BY, Xie CE, Wang ZB, Pei WJ, Li XH, Shi L, Liu JL, Han YF, Tan X, Ding PH, Sun ZM, Yuan WJ, Li JX. The effect of Heweijiangni-decoction on esophageal morphology in a rat model of OVA-induced visceral hypersensitivity followed by acid exposure. Cell Mol Biol (Noisy-le-grand) 2019; 65:73-78. [PMID: 31304910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/30/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
Heweijiangni decoction (HWJND) is an effective traditional Chinese medicine prescription in clinical treatment of nonerosive reflux disease (NERD). Esophageal hypersensitivity and acid contribute to the disease. However, the exact underlying mechanism of action remains unclear. In this study, we observed the effect of HWJND on esophageal morphology in a rat model of ovalbumin (OVA)-induced visceral hypersensitivity followed by acid exposure. Esophageal morphology was assessed by measuring the extent of dilated intercellular spaces (DIS), desmosome disruption, and mitochondrial fragmentation. HWJND in low, moderate, and high doses relieved DIS and desmosome disruption in esophageal epithelium compared with model group (P<0.05 for all doses). In addition, HWJND in high dose protected mitochondria from fragmentation (P<0.05). Other findings suggest that DIS and mitochondrial fragmentation are independent events, and that omeprazole protects mitochondria. Overall, HWJND significantly resists esophageal morphology changes in OVA-induced and acid exposure rat model.
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Affiliation(s)
- Bo-Yi Jia
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Chun-E Xie
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Zhi-Bin Wang
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Wen-Jing Pei
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Xiao-Hong Li
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Lei Shi
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Jia-Li Liu
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Ya-Fei Han
- Graduate School, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xiang Tan
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Pang-Hua Ding
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Zhong-Mei Sun
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Wen-Jing Yuan
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
| | - Jun-Xiang Li
- Department of Gastroenterology, Dongfang Hospital, Beijing University of Chinese Medicine, Beijing 100078, China
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15
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Wheeler JC, Vanoni S, Zeng C, Waggoner L, Yang Y, Wu D, Uddin J, Karns R, Kottyan L, Mukkada V, Rothenberg ME, Hogan SP. 17β-Estradiol protects the esophageal epithelium from IL-13-induced barrier dysfunction and remodeling. J Allergy Clin Immunol 2019; 143:2131-2146. [PMID: 30578870 PMCID: PMC6556402 DOI: 10.1016/j.jaci.2018.10.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 08/30/2018] [Accepted: 10/25/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND The incidence of eosinophilic esophagitis (EoE) is greater in male than female subjects, and the underlying molecular basis for this sex bias remains unclear. OBJECTIVE We sought to delineate the contribution of the sex hormone estrogen to the EoE phenotype and esophageal epithelial barrier function and remodeling. METHODS We performed demographic and incidence analyses of EoE in male and female subjects from a single-center pediatric cohort. Estrogen-responsive gene expression analyses and estrogen receptor (ESR) immunofluorescence staining of esophageal biopsy specimens from patients with EoE and control subjects were performed. The effect of 17β-estradiol (E2) on IL-13-induced signaling pathways, gene expression, and esophageal epithelial architecture and barrier function in a primary human esophageal keratinocyte cell (EPC2) culture system (EPC2-air-liquid interface) was examined. RESULTS We observed a male predominance in patients with EoE. Analyses of RNA sequencing data sets revealed a significant dysregulation of the estrogen-responsive gene network and expression of ESR1 and ESR2 in esophageal biopsy specimens from patients with EoE compared with control subjects. IL-13 stimulation of EPC2-air-liquid interface cells led to altered cellular architecture with induced dilation of intercellular spaces and barrier dysfunction. Pretreatment of EPC2s with E2 prior to IL-13 exposure abrogated IL-13-induced architectural changes and esophageal barrier dysfunction. Mechanistically, E2-protective effects were dependent on ESR2 and associated with diminishing of IL-13-induced tyrosine kinase 2 and signal transducer and activator of transcription 6 phosphorylation and EoE-dysregulated gene expression. CONCLUSIONS Estrogen-responsive genes are modified in patients with EoE compared with control subjects. E2 attenuated IL-13-induced architectural changes and esophageal epithelial barrier dysfunction through inhibition of the IL-13/tyrosine kinase 2/signal transducer and activator of transcription 6 pathway via ESR2-dependent process. Estrogen hormone signaling may protect against development of EoE in female subjects.
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Affiliation(s)
- Justin C Wheeler
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Simone Vanoni
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Chang Zeng
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Lisa Waggoner
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Yanfen Yang
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - David Wu
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jazib Uddin
- Center for Autoimmune Genomics and Etiology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Rebekah Karns
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Leah Kottyan
- Center for Autoimmune Genomics and Etiology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Vincent Mukkada
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Simon P Hogan
- Division of Allergy and Immunology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Mary H Weiser Food Allergy Center, Department of Pathology, University of Michigan, Ann Arbor, Mich.
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16
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Vigani B, Faccendini A, Rossi S, Sandri G, Bonferoni MC, Gentile M, Ferrari F. Development of a Mucoadhesive and In Situ Gelling Formulation Based on κ-Carrageenan for Application on Oral Mucosa and Esophagus Walls. I. A Functional In Vitro Characterization. Mar Drugs 2019; 17:md17020112. [PMID: 30759831 PMCID: PMC6409806 DOI: 10.3390/md17020112] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/29/2019] [Accepted: 02/06/2019] [Indexed: 11/16/2022] Open
Abstract
Oral mucositis and esophagitis represent the most frequent and clinically significant complications of cytoreductive chemotherapy and radiotherapy, which severely compromise the patient quality of life. The local application of polymeric gels could protect the injured tissues, alleviating the most painful symptoms. The present work aims at developing in situ gelling formulations for the treatment of oral mucositis and esophagitis. To reach these targets, κ-carrageenan (κ-CG) was selected as a polymer having wound healing properties and able to gelify in the presence of saliva ions, while hydroxypropyl cellulose (HPC) was used to improve the mucoadhesive properties of the formulations. CaCl₂ was identified as a salt able to enhance the interaction between κ-CG and saliva ions. Different salt and polymer concentrations were investigated in order to obtain a formulation having the following features: (i) low viscosity at room temperature to facilitate administration, (ii) marked elastic properties at 37 °C, functional to a protective action towards damaged tissues, and (iii) mucoadhesive properties. Prototypes characterized by different κ-CG, HPC, and CaCl₂ concentrations were subjected to a thorough rheological characterization and to in vitro mucoadhesion and washability tests. The overall results pointed out the ability of the developed formulations to produce a gel able to interact with saliva ions and to adhere to the biological substrates.
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Affiliation(s)
- Barbara Vigani
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12 Pavia, Italy.
| | - Angela Faccendini
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12 Pavia, Italy.
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12 Pavia, Italy.
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12 Pavia, Italy.
| | | | - Matteo Gentile
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12 Pavia, Italy.
| | - Franca Ferrari
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12 Pavia, Italy.
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17
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Kia L, Nelson M, Zalewski A, Gregory D, Gonsalves N, Straumann A, Hirano I. Oral delivery of fluticasone powder improves esophageal eosinophilic inflammation and symptoms in adults with eosinophilic esophagitis. Dis Esophagus 2018; 31:5149490. [PMID: 30380044 DOI: 10.1093/dote/doy098] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Topical steroids are the primary medical therapy for eosinophilic esophagitis (EoE). Current steroid formulations are used off-label and designed for airway delivery. It is known that the efficacy of topical steroids depends on drug-mucosal contact time, which is related to its formulation. The purpose of this study is to examine the effectiveness of fluticasone administered by means of an orally administered powder formulation. We conducted a retrospective analysis of patients diagnosed with EoE based on current guidelines and who were treated with orally administered fluticasone powder. The primary outcome was histologic response (peak eosinophil density (eos/hpf)). Secondary outcomes included patient-reported symptoms (EoEQ) and endoscopic features measured by a validated instrument (EoE endoscopic reference score, EREFS). Forty patients were treated with fluticasone powder with doses of 500 to 1000 mcg b.i.d. A significant difference was found between pre- and posttreatment levels of eosinophilia (P < 0.0001). Seventy-five percent of patients achieved peak densities of <15 eos/hpf. Improvement was also demonstrated in dysphagia symptoms (P = 0.031) and endoscopic findings of furrows (P = 0.0001) and exudates (P = 0.0001). Oral fluticasone powder induced significant improvement in histopathology, symptoms, and endoscopic features of inflammation in adults with EoE. It offers an easy-to-administer formulation of a topical steroid that circumvents concerns with esophageal delivery of commonly used, aerosolized inhaler preparations.
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Affiliation(s)
- L Kia
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - M Nelson
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - A Zalewski
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - D Gregory
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - N Gonsalves
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - A Straumann
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - I Hirano
- Department of Medicine, Division of Gastroenterology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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18
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Nam HH, Nan L, Choo BK. Dichloromethane Extracts of Geranium Koreanum Kom. Alleviates Esophagus Damage in Acute Reflux Esophagitis-Induced Rats by Anti-Inflammatory Activities. Int J Mol Sci 2018; 19:ijms19113622. [PMID: 30453554 PMCID: PMC6274961 DOI: 10.3390/ijms19113622] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 11/05/2018] [Accepted: 11/14/2018] [Indexed: 12/14/2022] Open
Abstract
Reflux esophagitis (RE) is a gastrointestinal disease caused by the reflux of gastric acid and stomach contents, and it leads to esophageal damage. Therefore, it is necessary to study the improvement of esophageal damage on a RE-induced model. The present study was accomplished to demonstrate the protective effects of a dichloromethane fraction of Geranium koreanum (DGK) plant on esophageal damage in an acute RE rat model. First, we examined the potential of anti-inflammatory effects of various fractions measured by cell cytotoxicity, morphological changes and nitric oxide (NO) production on lipopolysaccharide (LPS)-induced Raw 264.7 macrophage cells. Then, to evaluate the protective effects on RE, rats were partitioned into the following groups: normal control, RE-induced control and RE rats pre-treated with DGK 100 and 200 mg/kg body weight. The esophageal mucosal ulcer ratio was measured by the Image J program and histological changes were examined using a hematoxylin and eosin staining of the esophageal mucosa. The expression of pro-inflammatory proteins, cytokines and tight junction proteins involved in the esophageal mucosal damage were investigated using Western blotting and an enzyme-linked immunosorbent assay (ELISA) kit with esophagus tissue. DGK chemical profile and phenolic contents were analyzed by liquid chromatography-mass spectrometry (LC-MS/MS). The results showed that DGK exhibited anti-inflammatory effects against LPS-stimulated cells by significantly inhibiting NO production. Additionally, the results in vivo showed that improvement effects of DGK on esophageal mucosal damage. The expression of inflammatory proteins involved in nuclear factor κB (NF-κB) signaling pathways and tight junction protein (claudin-4 and -5) were significantly decreased in esophageal mucosa. We found the potential of DGK as source of replacement therapy products for inflammatory and RE disease.
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Affiliation(s)
- Hyeon Hwa Nam
- Department of Crop Science & Biotechnology, Chonbuk National University, Jeonju 54896, Korea.
| | - Li Nan
- Department of Crop Science & Biotechnology, Chonbuk National University, Jeonju 54896, Korea.
| | - Byung Kil Choo
- Department of Crop Science & Biotechnology, Chonbuk National University, Jeonju 54896, Korea.
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Majka J, Wierdak M, Brzozowska I, Magierowski M, Szlachcic A, Wojcik D, Kwiecien S, Magierowska K, Zagajewski J, Brzozowski T. Melatonin in Prevention of the Sequence from Reflux Esophagitis to Barrett's Esophagus and Esophageal Adenocarcinoma: Experimental and Clinical Perspectives. Int J Mol Sci 2018; 19:E2033. [PMID: 30011784 PMCID: PMC6073539 DOI: 10.3390/ijms19072033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/08/2018] [Accepted: 07/10/2018] [Indexed: 12/14/2022] Open
Abstract
Melatonin is a tryptophan-derived molecule with pleiotropic activities which is produced in all living organisms. This "sleep" hormone is a free radical scavenger, which activates several anti-oxidative enzymes and mechanisms. Melatonin, a highly lipophilic hormone, can reach body target cells rapidly, acting as the circadian signal to alter numerous physiological functions in the body. This indoleamine can protect the organs against a variety of damaging agents via multiple signaling. This review focused on the role played by melatonin in the mechanism of esophagoprotection, starting with its short-term protection against acute reflux esophagitis and then investigating the long-term prevention of chronic inflammation that leads to gastroesophageal reflux disease (GERD) and Barrett's esophagus. Since both of these condition are also identified as major risk factors for esophageal carcinoma, we provide some experimental and clinical evidence that supplementation therapy with melatonin could be useful in esophageal injury by protecting various animal models and patients with GERD from erosions, Barrett's esophagus and neoplasia. The physiological aspects of the synthesis and release of this indoleamine in the gut, including its release into portal circulation and liver uptake is examined. The beneficial influence of melatonin in preventing esophageal injury from acid-pepsin and acid-pepsin-bile exposure in animals as well as the usefulness of melatonin and its precursor, L-tryptophan in prophylactic and supplementary therapy against esophageal disorders in humans, are also discussed.
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Affiliation(s)
- Jolanta Majka
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Mateusz Wierdak
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Iwona Brzozowska
- Department of Anatomy, Faculty of Medicine, Jagiellonian University Medical College, 33-332 Cracow, Poland.
| | - Marcin Magierowski
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Aleksandra Szlachcic
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Dagmara Wojcik
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Slawomir Kwiecien
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Katarzyna Magierowska
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Jacek Zagajewski
- Department of Biochemistry, Faculty of Medicine, Jagiellonian University Medical College, 31-034 Cracow, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, Faculty of Medicine, Jagiellonian University Medical College, 31-531 Cracow, Poland.
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Li M, Gu MM, Tian X, Xiao BB, Lu S, Zhu W, Yu L, Shang ZF. Hydroxylated-Graphene Quantum Dots Induce DNA Damage and Disrupt Microtubule Structure in Human Esophageal Epithelial Cells. Toxicol Sci 2018; 164:339-352. [PMID: 29669094 PMCID: PMC6016703 DOI: 10.1093/toxsci/kfy090] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Graphene quantum dots (GQDs) have attracted significant interests due to their unique chemical and physical properties. In this study, we investigated the potential effects of hydroxyl-modified GQDs (OH-GQDs) on the human esophageal epithelial cell line HET-1A. Our data revealed significant cytotoxicity of OH-GQDs which decreased the viability of HET-1A in a dose and time-dependent manner. The moderate concentration (25 or 50 µg/ml) of OH-GQDs significantly blocked HET-1A cells in G0/G1 cell cycle phase. An increased percentage of γH2AX-positive and genomically unstable cells were also detected in cells treated with different doses of OH-GQDs (25, 50, and 100 µg/ml). Microarray data revealed that OH-GQDs treatment down-regulated genes related to DNA damage repair, cell cycle regulation and cytoskeleton signal pathways indicating a novel role of OH-GQDs. Consistent with the microarray data, OH-GQDs disrupted microtubule structure and inhibited microtubule regrowth around centrosomes in HET-1A cells. In conclusion, our findings provide important evidence for considering the application of OH-GQDs in biomedical fields.
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Affiliation(s)
- Ming Li
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
| | - Meng-Meng Gu
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
| | - Xin Tian
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
| | - Bei-Bei Xiao
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
| | - Siyuan Lu
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
| | - Wei Zhu
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
| | - Lan Yu
- Suzhou Digestive Diseases and Nutrition Research Center, Nanjing Medical University Affiliated Suzhou Hospital, North District of Suzhou Municipal Hospital, Suzhou 215000, People’s Republic of China
| | - Zeng-Fu Shang
- State Key Laboratory of Radiation Medicine and Protection, Department of Radiobiology, School of Radiation Medicine and Protection, Medical College of Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, People’s Republic of China
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Welty SE, Rusin CG, Stanberry LI, Mandy GT, Gest AL, Ford JM, Backes CH, Richardson CP, Howard CR, Hansen TN, Smith CV. Short term evaluation of respiratory effort by premature infants supported with bubble nasal continuous airway pressure using Seattle-PAP and a standard bubble device. PLoS One 2018; 13:e0193807. [PMID: 29590143 PMCID: PMC5874011 DOI: 10.1371/journal.pone.0193807] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 02/18/2018] [Indexed: 11/20/2022] Open
Abstract
Background Almost one million prematurely born infants die annually from respiratory insufficiency, predominantly in countries with limited access to respiratory support for neonates. The primary hypothesis tested in the present study was that a modified device for bubble nasal continuous positive airway pressure (Bn-CPAP) would provide lower work of spontaneous breathing, estimated by esophageal pressure-rate products. Methods Infants born <32 weeks gestation and stable on Bn-CPAP with FiO2 <0.30 were studied within 72 h following delivery. Esophageal pressures during spontaneous breathing were measured during 2 h on standard Bn-CPAP, then 2 h with Bn-CPAP using a modified bubble device presently termed Seattle-PAP, which produces a different pattern of pressure fluctuations and which provided greater respiratory support in preclinical studies, then 2 h on standard Bn-CPAP. Results All 40 infants enrolled completed the study and follow-up through 36 wks post menstrual age or hospital discharge, whichever came first. No infants were on supplemental oxygen at completion of follow-up. No infants developed pneumothoraces or nasal trauma, and no adverse events attributed to the study were observed. Pressure-rate products on the two devices were not different, but effort of breathing, assessed by areas under esophageal pressure-time curves, was lower with Seattle-PAP than with standard Bn-CPAP. Conclusion Use of Seattle-PAP to implement Bn-CPAP lowers the effort of breathing exerted even by relatively healthy spontaneously breathing premature neonates. Whether the lower effort of breathing observed with Seattle-PAP translates to improvements in neonatal mortality or morbidity will need to be determined by studies in appropriate patient populations.
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Affiliation(s)
- Stephen E. Welty
- Department of Pediatrics, The University of Washington College of Medicine, Seattle, Washington, United States of America
| | - Craig G. Rusin
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Larissa I. Stanberry
- Center for Developmental Therapeutics, Department of Pediatrics, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - George T. Mandy
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States of America
| | - Alfred L. Gest
- Department of Pediatrics West Virginia University School of Medicine, Morgantown, West Virginia, United States of America
| | - Jeremy M. Ford
- Center for Developmental Therapeutics, Department of Pediatrics, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Carl H. Backes
- Department of Pediatrics and Center for Perinatal Research, the Ohio State University College of Medicine and School of Public Health, Columbus, Ohio, United States of America
| | - C. Peter Richardson
- Center for Developmental Therapeutics, Department of Pediatrics, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Christopher R. Howard
- Center for Developmental Therapeutics, Department of Pediatrics, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Thomas N. Hansen
- Center for Developmental Therapeutics, Department of Pediatrics, Seattle Children’s Research Institute, Seattle, Washington, United States of America
| | - Charles V. Smith
- Department of Pediatrics, The University of Washington College of Medicine, Seattle, Washington, United States of America
- * E-mail:
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22
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Barron MR, Blanco EW, Aho JM, Chakroff J, Johnson J, Cassivi SD, Carey WA, Wigle DA. Full-thickness oesophageal regeneration in pig using a polyurethane mucosal cell seeded graft. J Tissue Eng Regen Med 2018; 12:175-185. [PMID: 27966266 DOI: 10.1002/term.2386] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 11/17/2016] [Accepted: 12/06/2016] [Indexed: 11/07/2022]
Abstract
Malignant oesophageal pathology typically requires resection of a portion of oesophagus. The aim of this study was to investigate attachment and growth of swine oesophageal mucosal cells on electrospun synthetic nanofibre matrices of varying chemistries and to determine whether a mucosal-seeded graft, in a swine animal model, could induce regeneration. Swine mucosal oesophageal cells were isolated and seeded them onto five different matrix materials. Matrix samples were cultured for up to 14 days, after which matrices were analysed for cell attachment. Attachment varied for each of the matrix materials tested, with the most rigid showing the lowest levels of attachment. Importantly, sections of these matrices illustrated that multiple layers of mucosal cells formed, mimicking endogenous oesophageal structure. A tdTomato reporter line (mucosaltdt cells) was created to enable cell tracking. As polyurethane matrix was found optimal through in vitro testing, a graft was prepared using mucosaltdt cells, along with an unseeded control, and implanted into swine for determination of oesophageal regeneration. Mucosal seeded polyurethane grafts initiated full thickness regeneration of the oesophagus, including epithelial, submucosal, and skeletal muscle layers which were highly vascularized. Interestingly, an unseeded graft showed similar regeneration, indicating that the role of cells in the process of oesophageal regeneration is still unclear. The electrospun polyurethane matrix does appear suitable for multilayered cellular attachment and growth of oesophageal mucosal cells, and implantation of polyurethane grafts initiated full thickness regeneration of the oesophagus, indicating potential for oesophageal reconstruction in humans. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Matthew R Barron
- Mayo Clinic Division of General Thoracic Surgery, Mayo Clinic College of Medicine, Rochester, MN
| | - Ellen W Blanco
- Mayo Clinic Division of General Thoracic Surgery, Mayo Clinic College of Medicine, Rochester, MN
| | - Johnathon M Aho
- Mayo Clinic Division of General Thoracic Surgery, Mayo Clinic College of Medicine, Rochester, MN
- Mayo Clinic Physiology and Biomedical Engineering, Rochester, MN, USA
| | | | - Jed Johnson
- Nanofiber Solutions, Inc., Columbus, OH, USA
| | - Stephen D Cassivi
- Mayo Clinic Division of General Thoracic Surgery, Mayo Clinic College of Medicine, Rochester, MN
- Mayo Clinic Division of Neonatal Medicine, Rochester, MN, USA
| | - William A Carey
- Mayo Clinic Division of General Thoracic Surgery, Mayo Clinic College of Medicine, Rochester, MN
- Mayo Clinic Division of Neonatal Medicine, Rochester, MN, USA
| | - Dennis A Wigle
- Mayo Clinic Division of General Thoracic Surgery, Mayo Clinic College of Medicine, Rochester, MN
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Khan AA, Advani J, Patel K, Nanjappa V, Datta KK, Solanki HS, Kumar P, Mathur PP, Nair B, Keshava Prasad TS, Chatterjee A, Gowda H. Chronic Exposure to Cigarette Smoke and Chewing Tobacco Alters Expression of microRNAs in Esophageal Epithelial Cells. Microrna 2018; 7:28-37. [PMID: 29237392 DOI: 10.2174/2211536607666171213123907] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 10/17/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is one of the most common cancers with high mortality rate. Cigarette smoke and chewing tobacco are well known risk factors associated with ESCC. However, molecular mechanisms associated with development of ESCC among smokers and chewers are poorly understood. MicroRNAs play an important role in regulating physiological and disease processes including esophageal cancer. OBJECTIVE AND METHODS In this study, we developed an in vitro model by treating non-neoplastic Het- 1A esophageal cell line with cigarette smoke and chewing tobacco. We carried out miRNA sequencing on Illumina HiSeq 2500 platform and compared miRNA expression pattern across cigarette smoke and chewing tobacco treated Het-1A cells with untreated cells. RESULTS We identified and quantified 433 miRNAs in both smoke exposed and chewing tobacco treated cells, of which 13 miRNAs showed significantly altered expression in cigarette smoke exposed cells while 25 miRNAs showed significantly altered expression in chewing tobacco treated cells. In addition, we predicted novel miRNAs from these data-sets. We evaluated miRNAs that showed selective or context dependent expression pattern in cigarette smoke exposed or chewing tobacco treated cells. CONCLUSION In this study, we have comprehensively mapped miRNA expression pattern in response to cigarette smoke and chewing tobacco in Het-1A cells. We identified miRNAs that show altered expression in these cell models.
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Affiliation(s)
- Aafaque Ahmad Khan
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Jayshree Advani
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
- Manipal Academy of Higher Education, Manipal 576104, India
| | - Krishna Patel
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | - Vishalakshi Nanjappa
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Keshava K Datta
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Hitendra Singh Solanki
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Prashant Kumar
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Premendu Prakash Mathur
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Bipin Nair
- School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | - Thottethodi Subrahmanya Keshava Prasad
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
- YU-IOB Center for Systems Biology and Molecular Medicine, Yenepoya University, Mangalore 575018, India
| | - Aditi Chatterjee
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
| | - Harsha Gowda
- Institute of Bioinformatics, International Technology Park, Bangalore 560066, India
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Abstract
Staging is one of the most important factors that determine the prognosis of the patients with esophageal adenocarcinoma. The current staging protocol includes parameters-extent of tumor (T), lymph node status (N), presence of distant metastasis (M), and grade of the adenocarcinoma (G). In addition, different criteria are used in patients with and without neoadjuvant therapy. The silent aspects of the use of new staging protocol are discussed.
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Affiliation(s)
- Alfred K Lam
- Cancer Molecular Pathology of School of Medicine, Griffith University, Gold Coast, Australia.
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25
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Abstract
In the World Health Organization (WHO) classification, adenocarcinoma of esophagus comprises preinvasive type (dysplasia), adenocarcinoma, adenoid cystic carcinoma, adenosquamous carcinoma, and mucoepidermoid carcinoma. For adenocarcinoma, it is important to determine the grading of the cancer and histological variants such as signet ring adenocarcinoma. In the current day management of esophageal adenocarcinoma by neoadjuvant therapy, the histology of the cancer and the lymph nodal status may change after the therapy. Tumor regression grading systems could be used to assess the response to the neoadjuvant therapy in esophageal adenocarcinoma.
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Affiliation(s)
- Alfred K Lam
- Cancer Molecular Pathology of School of Medicine, Griffith University, Gold Coast, Australia.
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Zhang K, Bai Y, Wang X, Li Q, Guan F, Li J. Surface modification of esophageal stent materials by a polyethylenimine layer aiming at anti-cancer function. J Mater Sci Mater Med 2017; 28:125. [PMID: 28707137 DOI: 10.1007/s10856-017-5939-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/27/2017] [Indexed: 06/07/2023]
Abstract
Esophageal cancer is difficult to cure globally and possesses high mortality rate, and it is generally accepted that palliative care such as stent implantation is the main therapy method for esophageal cancer in later period. However, the restenosis caused by tumor cells and inflammatory cells seriously interferes the stent clinical application and limits its long-term services. To solve this problem, series of drug delivery stents were developed and proven rather effective in the early stage of implantation, but more serious restenosis occurred after the drug delivery was over, which endangered the patients' life. Therefore, endowing the esophageal stent continuous anti-cancer function become an ideal strategy for inhibiting the restenosis. In this contribution, the functional layer composed of polydopamine (PDA) and Poly-ethylenimine (PEI) with series of molecular weights (MW, 1.8 × 103, 1 × 104, 2.5 × 104 and 7 × 104 Da) were fabricated onto the esophageal stent material 317L stainless steel (317L SS) surface. The surface characterization including amine quantitative, atomic force microscopy (AFM) and water contact angle measurement indicated successful preparation of the PDA/PEI layer. The Eca109 cells culture results proved that the PDA/PEI layers significantly improve Eca109 cells apoptosis and necrosis, suggesting excellent anti-cancer function. In addition, we also found that the anti-cancer function of the PDA/PEI layers was positively correlated to the immobilized PEIs' MW. All the results demonstrated the potential application of the PDA/PEI layers on the surface modification of esophageal stent for continuous anti-cancer function. It is generally accepted that the restenosis caused by tumor cells seriously interferes the esophageal stent clinical application. Thus, endowing the esophageal stent continuous anti-cancer function is the ideal strategy for inhibiting the restenosis. In this work, we fabricated functional layers composed of polydopamine (PDA) and Poly-ethylenimine (PEI) with series of molecular weights (MW, 1.8 × 103, 1 × 104, 2.5 × 104 and 7 × 104 Da) onto the esophageal stent material 317L stainless steel (317L SS) surface to inhibit the tumor cells growth, and this function was related to the PEIs' molecular weights. The functional PDA/PEI layers were expected potentially applied for surface modification of esophageal stent materials.
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Affiliation(s)
- Kun Zhang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
- National Center for International Research of Micro-nano Molding Technology & Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou, PR China
| | - Yuxin Bai
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Xiaofeng Wang
- National Center for International Research of Micro-nano Molding Technology & Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou, PR China
| | - Qian Li
- National Center for International Research of Micro-nano Molding Technology & Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou, PR China
| | - Fangxia Guan
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China
| | - Jingan Li
- National Center for International Research of Micro-nano Molding Technology & Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou, PR China.
- School of Material Science and Engineering, Zhengzhou University, 100 Science Road, Zhengzhou, 450001, PR China.
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27
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Wan Z, Huang Z, Chen L. Survival predictors associated with signet ring cell carcinoma of the esophagus (SRCCE): A population-based retrospective cohort study. PLoS One 2017; 12:e0181845. [PMID: 28746362 PMCID: PMC5528994 DOI: 10.1371/journal.pone.0181845] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/08/2017] [Indexed: 12/19/2022] Open
Abstract
Purpose Signet ring cell carcinoma of the esophagus (SRCCE) is an uncommon tumor associated with significant morbidity and mortality. There is still no consensus regarding cut-off values for tumor size, age and optimal treatment for SRCCE. Thus, we elucidated the current survival outcomes of patients with SRCCE and analyzed factors associated with prognosis. Methods A retrospective cohort study based on the SEER (The Surveillance, Epidemiology, and End Results) program database was conducted. We identified 537 patients (461 men and 76 women) newly diagnosed with SRCCE between January 2004 and December 2014. A multivariate Cox proportional hazards model was utilized to measure the mortality-associated risk factors in patients with SRCCE after adjusting for various variables. Results The 1-, 2- and 5-year disease-specific mortalities (DSM) were 51.6%, 67.6%, and 78.4%, respectively, and the median survival time was 12.0 months. The factors correlated with mortality hazard were marital status (unmarried versus married, Hazard Ratio (HR) = 1.443), tumor size (≥ 5 cm versus < 5 cm, HR = 1.444), tumor grade (high grade versus low grade, HR = 3.001), condition of primary tumor (T4 versus T1, HR = 2.178), regional lymph node metastasis (N1 versus N0, HR = 1.739), further metastasis (M1 versus M0, HR = 1.951) and chemotherapy (receiving chemotherapy versus no chemotherapy, HR = 0.464). Conclusions The contemporary 5-year DSM was 78.4%. Being unmarried, having a tumor size ≥ 5 cm, a high tumor grade, a score of T4 for tumor invasion of adjacent organs, a score of N1 for regional lymph node metastasis, a score of M1 for distant metastasis and no chemotherapy were independent predictors of high DSM.
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Affiliation(s)
- Zihao Wan
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Zhihao Huang
- Department of Colorectal and Anal Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Liaobin Chen
- Department of Orthopedic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, China
- * E-mail:
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Wang C, Han J, Li DJ, Yang Z, Zhang L. Protective effects of hydrogen sulfide on portal hypertensive vasculopathy in rabbits by activating AKT-NF-κB pathway. ACTA ACUST UNITED AC 2017; 37:348-351. [PMID: 28585141 DOI: 10.1007/s11596-017-1738-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 05/01/2017] [Indexed: 01/30/2023]
Abstract
The role of hydrogen sulfide (H2S) in portal hypertension (PH)-induced esophagus-gastric junction vascular lesions in rabbits was observed. The rabbit PH models were established. The animals were randomly divided into the following groups: normal, PH, PH+sodium hydrosulfide (PH+S), PH+propargylglycine (PH+PPG). The plasma H2S levels, apoptosis of esophageal-gastric junction vascular smooth muscle cells, and the expression of nuclear transcription factor-κB (NF-κB), p-AKT, IκBa and Bcl-2 were detected. The cystathionine γ lyase (cystathionine-gamma-splitting enzyme, CSE) in the junction vascular tissue was measured. The results showed that the plasma H2S levels and the CSE expression levels had statistically significant difference among different groups (P<0.05). As compared with PH group, plasma H2S levels were declined obviously (11.9±4.2 vs. 20.6±4.5, P<0.05), and CSE expression levels in the junction vascular tissue were notably reduced (1.7±0.6 vs. 2.8±0.8, P<0.05), apoptosis rate of vascular smooth muscle cells per unit area was significantly decreased (0.10±0.15 vs. 0.24±0.07, P<0.05), and the expression levels of p-AKT and NF-κB were significantly decreased (2.31±0.33 vs. 3.04±0.38, P<0.05; 0.33±0.17 vs. 0.51±0.23, P<0.05), however, IκBa and Bcl-2 expression increased obviously (5.57±0.17 vs. 3.67±0.13, P<0.05; 0.79±0.29 vs. 0.44±0.36, P<0.05) in PH+PPG group. As compared with PH group, H2S levels were notably increased (32.7±7.3 vs. 20.6±4.5, P<0.05), the CSE levels in the junction vascular tissue were significantly increased (6.3±0.7 vs. 2.8±0.8, P<0.05), apoptosis rate of vascular smooth muscle cells per unit area was significantly increased (0.35±0.14 vs. 0.24±0.07, P<0.05), and the expression levels of p-AKT and NF-κB were significantly increased (4.29±0.49 vs. 3.04±0.38, P<0.05; 0.77±0.27 vs. 0.51±0.23, P<0.05), yet IκBa and Bcl-2 expression decreased significantly (3.23±0.24 vs. 3.67±0.13, P<0.05; 0.31±0.23 vs. 0.48±0.34, P<0.05) in PH+S group. It is concluded that esophagus-gastric junction vascular lesions happen under PH, and apoptosis of smooth muscle cells is declined. H2S can activate NF-κB by the p-AKT pathway, leading to the down-regulation of Bcl-2, eventually stimulating apoptosis of vascular smooth muscle cells, easing PH. H2S/CSE system may play an important role in remission of PH via the AKT-NF-κB pathway.
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MESH Headings
- Alkynes/pharmacology
- Animals
- Antihypertensive Agents/pharmacology
- Apoptosis/drug effects
- Cystathionine gamma-Lyase/genetics
- Cystathionine gamma-Lyase/metabolism
- Disease Models, Animal
- Endothelial Cells/drug effects
- Endothelial Cells/metabolism
- Endothelial Cells/parasitology
- Esophagus/blood supply
- Esophagus/drug effects
- Esophagus/pathology
- Gene Expression Regulation
- Glycine/analogs & derivatives
- Glycine/pharmacology
- Hydrogen Sulfide/pharmacology
- Hypertension, Portal/complications
- Hypertension, Portal/drug therapy
- Hypertension, Portal/genetics
- Hypertension, Portal/parasitology
- Intercellular Junctions/drug effects
- Intercellular Junctions/metabolism
- Intercellular Junctions/parasitology
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/parasitology
- NF-KappaB Inhibitor alpha/genetics
- NF-KappaB Inhibitor alpha/metabolism
- NF-kappa B/agonists
- NF-kappa B/genetics
- NF-kappa B/metabolism
- Portal System/drug effects
- Portal System/metabolism
- Portal System/parasitology
- Proto-Oncogene Proteins c-akt/agonists
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Rabbits
- Schistosoma japonicum/growth & development
- Schistosomiasis japonica/complications
- Schistosomiasis japonica/drug therapy
- Schistosomiasis japonica/genetics
- Schistosomiasis japonica/parasitology
- Signal Transduction
- Stomach/blood supply
- Stomach/drug effects
- Stomach/pathology
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Affiliation(s)
- Chao Wang
- Department of Integrative Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Juan Han
- Department of Biliary and Pancreatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dong-Jian Li
- Department of Integrative Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhen Yang
- Department of Integrative Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lin Zhang
- Department of Breast and Thyroid Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Singh S, Rai A, Maity S, Sarkar S, Maji S, Saha S. Effect of ethanolic extract of Quisqualis indica L. flower on experimental esophagitis in albino Wistar rats. Indian J Exp Biol 2017; 55:122-126. [PMID: 30184413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Quisqualis indica L., Syn. Combretum indicum (L.) DeFilipps., known as Rangoon creeper or Chinese Honeysuckle, is an abundant source of phenols and flavonoids thathave crucial role in free radical scavenging. Therefore, here we investigated whether extract of Q. indica flower has any role against esophagitis through scavenging of free radical oxygen species. In this study, we elucidated the effect of ethanolic flower extract of Q. indica on experimental esophagitis in albino Wister rats. The fasted animals divided into six groups and received carboxymethyl cellulose (CMC) (0.25%, 3 mL/kg, Sham control) or toxic control or pantoprazole (30 mg/kg) or flower extract of different doses (100, 200 and 300 mg/kg) were subjected to pylorus and fore stomach ligation. All the animals were sacrificed after 8 h and evaluated for various parameters such as total acidity, free acidity, gastric pH, volume of gastric juices and esophagitis index. Esophageal tissues were subjected to estimation of various oxidative stress parameters like malonaldehyde (MDA), glutathione (GSH), catalase (CAT), superoxide dismutase (SOD) and protein carbonyl (PC). In a separate experiment, in vitro antioxidant assays such as DPPH and H2O2 assays, total phenolic and flavonoid contents were also conducted. The results revealed that treatments with pantoprazole and flower extracts significantly inhibited the gastric secretion, total acidity and esophagitis index. Various oxidative stress parameters also restored to normal level in the treated groups. This action could be due to the presence of higher phenolic and flavonoid contents. All these findings collectively suggest that the flower extract of Q. indica possibly possess anti-esophagitis potential.
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Ullal TV, Kass PH, Conklin JL, Belafsky PC, Marks SL. High-resolution manometric evaluation of the effects of cisapride on the esophagus during administration of solid and liquid boluses in awake healthy dogs. Am J Vet Res 2017; 77:818-27. [PMID: 27463544 DOI: 10.2460/ajvr.77.8.818] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To validate the use of high-resolution manometry (HRM) in awake, healthy dogs and compare the effects of bolus type (liquid vs solid) and drug treatment (saline [0.9% NaCl] solution [SS] vs cisapride) on esophageal pressure profiles. ANIMALS 8 healthy dogs. PROCEDURES In a crossover study, each dog received SS (10 mL) IV, and HRM was performed during oral administration of 10 boluses (5 mL each) of water or 10 boluses (5 g each) of canned food. Cisapride (1 mg/kg in 60 mL of SS) was subsequently administered IV to 7 dogs; HRM and bolus administration procedures were repeated. Two to 4 weeks later, HRM was repeated following administration of SS and water and food boluses in 4 dogs. Pressure profile data were obtained for all swallows, and 11 outcome variables were statistically analyzed. RESULTS After SS administration, predicted means for the esophageal contractile integral were 850.4 cm/mm Hg/s for food boluses and 660.3 cm/mm Hg/s for water boluses. Predicted means for esophageal contraction front velocity were 6.2 cm/s for water boluses and 5.6 cm/s for food boluses after SS administration. Predicted means for residual LES pressure were significantly higher following cisapride administration. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that HRM was feasible and repeatable in awake healthy dogs of various breeds and sizes. Stronger esophageal contractions and faster esophageal contraction velocity occurred during solid bolus and liquid bolus swallows, respectively. Lower esophageal sphincter pressure increased significantly following cisapride administration. Esophageal contractions and bolus transit latency should be further evaluated by HRM in clinically dysphagic dogs.
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31
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Shaikh M, Zhang H, Wang H, Guo X, Song Y, Kanwar JR, Garg S. In Vitro and In Vivo Assessment of Docetaxel Formulation Developed for Esophageal Stents. AAPS PharmSciTech 2017; 18:130-137. [PMID: 26895019 DOI: 10.1208/s12249-016-0501-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 02/08/2016] [Indexed: 12/13/2022] Open
Abstract
Esophageal cancer (EC) mostly affects the elderly population and is frequently diagnosed at an advanced stage. Self-expanding metal stents (SEMS) are the most popular mode of palliation, but they are associated with reocclusion caused by tumor growth. To overcome this problem, docetaxel (DTX)-loaded polyurethane formulations were prepared for stent application. The films were evaluated against the cancer cell lines, OE-19 and OE-21, and normal esophageal cell line Het-1A. The DTX and the formulations were evaluated in vitro for the cytotoxicity and in vivo in nude mice. It was found that DTX and the formulations have a weak activity against the EC cell lines and an even weaker activity against Het-1A cell line. Preliminary in vivo studies showed skin toxicity in nude mice necessitating modification of the formulation. Reevaluation in a mouse xenograft model resulted in toxicity at high dose formulations while the low dose formulation exhibited modest advantage over commercial IV formulation; however, there was no significant difference between the commercial IV and blank formulation. DTX combination with an anti-cancer agent having complementary mode of action and non-overlapping toxicity could yield better outcome in future.
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Affiliation(s)
- Mohsin Shaikh
- Centre for Pharmaceutical Innovation and Development (CPID), School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Huihui Zhang
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, People's Republic of China
| | - Hongyuan Wang
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, People's Republic of China
| | - Xiuli Guo
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, Jinan, 250100, People's Republic of China
| | - Yunmei Song
- Centre for Pharmaceutical Innovation and Development (CPID), School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5000, Australia
| | - Jagat Rakesh Kanwar
- Nanomedicine-Laboratory of Immunology and Molecular Biomedical Research, School of Medicine, Faculty of Health, Centre for Molecular and Medical Research, Deakin University, Pigdons Road, Waurn Ponds, Geelong, Victoria, 3216, Australia
| | - Sanjay Garg
- Centre for Pharmaceutical Innovation and Development (CPID), School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, 5000, Australia.
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32
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Evans RPT, Mourad MM, Fisher SG, Bramhall SR. Evolving management of metaplasia and dysplasia in Barrett's epithelium. World J Gastroenterol 2016; 22:10316-10324. [PMID: 28058012 PMCID: PMC5175244 DOI: 10.3748/wjg.v22.i47.10316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/30/2016] [Accepted: 12/02/2016] [Indexed: 02/06/2023] Open
Abstract
Oesophageal cancer affects more than 450000 people worldwide and despite continued medical advancements the incidence of oesophageal cancer is increasing. Oesophageal cancer has a 5 year survival of 15%-25% and now globally attempts are made to more aggressively diagnose and treat Barrett's oesophagus the known precursor to invasive disease. Currently diagnosis the of Barrett's oesophagus is predominantly made after endoscopic visualisation and histopathological confirmation. Minimally invasive techniques are being developed to improve the viability of screening programs. The management of Barrett's oesophagus can vary greatly dependent on the presence and severity of dysplasia. There is no consensus between the major international medical societies to determine and agreed surveillance and intervention pathway. In this review we analysed the current literature to demonstrate the evolving management of metaplasia and dysplasia in Barrett's epithelium.
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33
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Yi CH, Lei WY, Hung JS, Liu TT, Chen CL, Pace F. Influence of capsaicin infusion on secondary peristalsis in patients with gastroesophageal reflux disease. World J Gastroenterol 2016; 22:10045-10052. [PMID: 28018112 PMCID: PMC5143751 DOI: 10.3748/wjg.v22.i45.10045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/20/2016] [Accepted: 11/13/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To determine whether capsaicin infusion could influence heartburn perception and secondary peristalsis in patients with gastroesophageal reflux disease (GERD).
METHODS Secondary peristalsis was performed with slow and rapid mid-esophageal injections of air in 10 patients with GERD. In a first protocol, saline and capsaicin-containing red pepper sauce infusions were randomly performed, whereas 2 consecutive sessions of capsaicin-containing red pepper sauce infusions were performed in a second protocol. Tested solutions including 5 mL of red pepper sauce diluted with 15 mL of saline and 20 mL of 0.9% saline were infused into the mid-esophagus via the manometric catheter at a rate of 10 mL/min with a randomized and double-blind fashion. During each study protocol, perception of heartburn, threshold volumes and peristaltic parameters for secondary peristalsis were analyzed and compared between different stimuli.
RESULTS Infusion of capsaicin significantly increased heartburn perception in patients with GERD (P < 0.001), whereas repeated capsaicin infusion significantly reduced heartburn perception (P = 0.003). Acute capsaicin infusion decreased threshold volume of secondary peristalsis (P = 0.001) and increased its frequency (P = 0.01) during rapid air injection. The prevalence of GERD patients with successive secondary peristalsis during slow air injection significantly increased after capsaicin infusion (P = 0.001). Repeated capsaicin infusion increased threshold volume of secondary peristalsis (P = 0.002) and reduced the frequency of secondary peristalsis (P = 0.02) during rapid air injection.
CONCLUSION Acute esophageal exposure to capsaicin enhances heartburn sensation and promotes secondary peristalsis in gastroesophageal reflux disease, but repetitive capsaicin infusion reverses these effects.
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34
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Khammanivong A, Anandharaj A, Qian X, Song JM, Upadhyaya P, Balbo S, Bandyopadhyay D, Dickerson EB, Hecht SS, Kassie F. Transcriptome profiling in oral cavity and esophagus tissues from (S)-N'-nitrosonornicotine-treated rats reveals candidate genes involved in human oral cavity and esophageal carcinogenesis. Mol Carcinog 2016; 55:2168-2182. [PMID: 26785143 PMCID: PMC5142294 DOI: 10.1002/mc.22459] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 12/10/2015] [Accepted: 01/04/2016] [Indexed: 01/11/2023]
Abstract
Recently, we have shown that (S)-N'-Nitrosonornicotine [(S)-NNN], the major form of NNN in tobacco products, is a potent oral cavity and esophageal carcinogen in rats. To determine the early molecular alterations induced by (S)-NNN in the oral and esophageal mucosa, we administered the carcinogen to rats in the drinking water for 10 wk and global gene expression alterations were analyzed by RNA sequencing. At a false discovery rate P-value < 0.05 and fold-change ≥2, we found alterations in the level of 39 genes in the oral cavity and 69 genes in the esophagus. Validation of RNA sequencing results by qRT-PCR assays revealed a high cross-platform concordance. The most significant impact of exposure to (S)-NNN was alteration of genes involved in immune regulation (Aire, Ctla4, and CD80), inflammation (Ephx2 and Inpp5d) and cancer (Cdkn2a, Dhh, Fetub B, Inpp5d, Ly6E, Nr1d1, and Wnt6). Consistent with the findings in rat tissues, most of the genes were deregulated, albeit to different degrees, in immortalized oral keratinocytes treated with (S)-NNN and in non-treated premalignant oral cells and malignant oral and head and neck squamous cells. Furthermore, interrogation of TCGA data sets showed that genes deregulated by (S)-NNN in rat tissues (Fetub, Ly6e, Nr1d1, Cacna1c, Cd80, and Dgkg) are also altered in esophageal and head and neck tumors. Overall, our findings provide novel insights into early molecular changes induced by (S)-NNN and, therefore, could contribute to the development of biomarkers for the early detection and prevention of (S)-NNN-associated oral and esophageal cancers. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Ali Khammanivong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota
| | | | - Xuemin Qian
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Jung Min Song
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Pramod Upadhyaya
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Silvia Balbo
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
- Environmental Health Sciences Division, School of Public Health, University of Minnesota, Minneapolis, Minnesota
| | | | - Erin B. Dickerson
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota
| | - Stephen S Hecht
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Fekadu Kassie
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Saint Paul, Minnesota
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35
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Djakovic Z, Djakovic I, Cesarec V, Madzarac G, Becejac T, Zukanovic G, Drmic D, Batelja L, Zenko Sever A, Kolenc D, Pajtak A, Knez N, Japjec M, Luetic K, Stancic-Rokotov D, Seiwerth S, Sikiric P. Esophagogastric anastomosis in rats: Improved healing by BPC 157 and L-arginine, aggravated by L-NAME. World J Gastroenterol 2016; 22:9127-9140. [PMID: 27895400 PMCID: PMC5107594 DOI: 10.3748/wjg.v22.i41.9127] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/28/2016] [Accepted: 09/28/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To cure typically life-threatening esophagogastric anastomosis in rats, lacking anastomosis healing and sphincter function rescue, in particular.
METHODS Because we assume esophagogastric fistulas represent a particular NO-system disability, we attempt to identify the benefits of anti-ulcer stable gastric pentadecapeptide BPC 157, which was in trials for ulcerative colitis and currently for multiple sclerosis, in rats with esophagocutaneous fistulas. Previously, BPC 157 therapies have promoted the healing of intestinal anastomosis and fistulas, and esophagitis and gastric lesions, along with rescued sphincter function. Additionally, BPC 157 particularly interacts with the NO-system. In the 4 d after esophagogastric anastomosis creation, rats received medication (/kg intraperitoneally once daily: BPC 157 (10 μg, 10 ng), L-NAME (5 mg), or L-arginine (100 mg) alone and/or combined or BPC 157 (10 μg, 10 ng) in drinking water). For rats underwent esophagogastric anastomosis, daily assessment included progressive stomach damage (sum of the longest diameters, mm), esophagitis (scored 0-5), weak anastomosis (mL H2O before leak), low pressure in esophagus at anastomosis and in the pyloric sphincter (cm H2O), progressive weight loss (g) and mortality. Immediate effect assessed blood vessels disappearance (scored 0-5) at the stomach surface immediately after anastomosis creation.
RESULTS BPC 157 (all regimens) fully counteracted the perilous disease course from the very beginning (i.e., with the BPC 157 bath, blood vessels remained present at the gastric surface after anastomosis creation) and eliminated mortality. Additionally, BPC 157 treatment in combination with L-NAME nullified any effect of L-NAME that otherwise intensified the regular course. Consistently, with worsening (with L-NAME administration) and amelioration (with L-arginine), either L-arginine amelioration prevails (attenuated esophageal and gastric lesions) or they counteract each other (L-NAME + L-arginine); with the addition of BPC 157 (L-NAME + L-arginine + BPC 157), there was a marked beneficial effect. BPC 157 treatment for esophagogastric anastomosis, along with NOS-blocker L-NAME and/or NOS substrate L-arginine, demonstrated an innate NO-system disability (as observed with L-arginine effectiveness). BPC 157 distinctively affected corresponding events: worsening (obtained with L-NAME administration that was counteracted); or amelioration (L-arginine + BPC 157-rats correspond to BPC 157-rats).
CONCLUSION Innate NO-system disability for esophagogastric anastomoses, including L-NAME-worsening, suggests that these effects could be corrected by L-arginine and almost completely eliminated by BPC 157 therapy.
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36
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Sawada A, Fujiwara Y, Nagami Y, Tanaka F, Yamagami H, Tanigawa T, Shiba M, Tominaga K, Watanabe T, Gi M, Wanibuchi H, Arakawa T. Alteration of Esophageal Microbiome by Antibiotic Treatment Does Not Affect Incidence of Rat Esophageal Adenocarcinoma. Dig Dis Sci 2016; 61:3161-3168. [PMID: 27461059 DOI: 10.1007/s10620-016-4263-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 07/20/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Recent studies suggest that chronic inflammation-associated cancer is relevant to microbiome. Esophageal adenocarcinoma arises from an inflammatory condition called Barrett's esophagus, which is caused by gastroesophageal reflux. We hypothesized that esophageal microbiome plays a role in carcinogenesis of esophageal adenocarcinoma. AIM We investigated whether alteration of microbiome using antibiotics affects the development of esophageal adenocarcinoma in a rat model. METHODS Seven-week-old male Wistar rats which had undergone esophagojejunostomy were divided into control (n = 21) and antibiotic groups (n = 22) at 21 weeks after surgery. Control animals were given drinking water, while the other group was given penicillin G and streptomycin in drinking water until rats were killed at 40 weeks after operation. Incidence rates of Barrett's esophagus and adenocarcinoma in each group were evaluated by histological analysis. DNA was extracted from a portion of the distal esophagus, and the microbiome was investigated using terminal restriction fragment length polymorphism (T-RFLP) analysis. RESULTS All rats in both groups developed Barrett's esophagus. Incidence of esophageal adenocarcinoma was similar between both groups with a trend to reduced incidence in the antibiotics group (89 % in the control group, 71 % in the antibiotics group, P = 0.365). T-RFLP analysis showed that esophageal microbiome was different between two groups such as the proportion of Lactobacillales was lower in the antibiotics group and Clostridium cluster XIVa and XVIII was higher in the antibiotics group. CONCLUSIONS Alteration of microbiome does not affect the incidence of esophageal adenocarcinoma. Microbiome may not contribute to the development of esophageal adenocarcinoma.
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Affiliation(s)
- Akinari Sawada
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Yasuhiro Fujiwara
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
- SAMURAI GI Research Center, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan.
| | - Yasuaki Nagami
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Fumio Tanaka
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
- Department of Premier Preventive Medicine, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Hirokazu Yamagami
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Tetsuya Tanigawa
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
- SAMURAI GI Research Center, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Masatsugu Shiba
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Kazunari Tominaga
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
- SAMURAI GI Research Center, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Toshio Watanabe
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
- SAMURAI GI Research Center, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Min Gi
- Department of Molecular Pathology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Hideki Wanibuchi
- Department of Molecular Pathology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
| | - Tetsuo Arakawa
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
- SAMURAI GI Research Center, Osaka City University Graduate School of Medicine, 1-4-7 Asahimachi, Abenoku, Osaka, 545-8585, Japan
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37
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Abstract
About one-third of patients with suspected gastro-oesophageal reflux disease (GERD) do not respond symptomatically to proton pump inhibitors (PPIs). Many of these patients do not suffer from GERD, but may have underlying functional heartburn or atypical chest pain. Other causes of failure to respond to PPIs include inadequate acid suppression, non-acid reflux, oesophageal hypersensitivity, oesophageal dysmotility and psychological comorbidities. Functional oesophageal tests can exclude cardiac and structural causes, as well as help to confi rm or exclude GERD. The use of PPIs should only be continued in the presence of acid reflux or oesophageal hypersensitivity for acid reflux-related events that is proven on functional oesophageal tests.
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Affiliation(s)
- Daphne Ang
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore
| | - Choon How How
- Care and Health Integration, Changi General Hospital, Singapore
| | - Tiing Leong Ang
- Department of Gastroenterology and Hepatology, Changi General Hospital, Singapore
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38
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Verbeek RE, Siersema PD, Vleggaar FP, Ten Kate FJ, Posthuma G, Souza RF, de Haan J, van Baal JWPM. Toll-like Receptor 2 Signalling and the Lysosomal Machinery in Barrett's Esophagus. J Gastrointestin Liver Dis 2016; 25:273-82. [PMID: 27689189 DOI: 10.15403/jgld.2014.1121.253.rc2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND AIMS Inflammation plays an important role in the development of esophageal adenocarcinoma and its metaplastic precursor lesion, Barrett's esophagus. Toll-like receptor (TLR) 2 signalling and lysosomal function have been linked to inflammation-associated carcinogenesis. We examined the expression of TLR2 in the esophagus and the effect of long-term TLR2 activation on morphological changes and expression of factors involved in lysosomal function in a Barrett's esophagus epithelium cell line. METHODS TLR2 expression in normal squamous esophagus, reflux esophagitis, Barrett's esophagus and esophageal adenocarcinoma biopsies was assessed with Q-RT-PCR, in situ hybridization and immunohistochemistry. Barrett's esophagus epithelium cells (BAR-T) were incubated with acid and bile salts in the presence or absence of the TLR2 agonist Pam3CSK4 for a period up to 4 weeks. Morphological changes were assessed with electron microscopy, while Q-RT-PCR was used to determine the expression of lysosomal enzymes (Cathepsin B and C) and factors involved in endocytosis (LAMP-1 and M6PR) and autophagy (LC3 and Rab7). RESULTS TLR2 was expressed in normal squamous esophagus, reflux esophagitis, Barrett's esophagus but was most prominent in esophageal adenocarcinoma. Long-term TLR2 activation in acid and bile salts exposed BAR-T cells resulted in more and larger lysosomes, more mitochondria and increased expression of LAMP-1, M6PR, Cathepsin B and C when compared to BAR-T cells incubated with acid and bile salts but no TLR2 agonist. Factors associated with autophagy (LC3 and Rab7) expression remained largely unchanged. CONCLUSION Activation of TLR2 in acid and bile salts exposed Barrett epithelium cells resulted in an increased number of mitochondria and lysosomes and increased expression of lysosomal enzymes and factors involved in endocytosis.
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Affiliation(s)
- Romy E Verbeek
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands.
| | - Peter D Siersema
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht; Department of Gastroenterology and Hepatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank P Vleggaar
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Fiebo J Ten Kate
- Department of Pathology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - George Posthuma
- Department of Cell Biology, Center for Electron Microscopy, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rhonda F Souza
- Department of Medicine, University of Texas Southwestern Medical Center, VA North Texas Health Care System, Dallas, Texas, USA
| | - Judith de Haan
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jantine W P M van Baal
- Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, The Netherlands
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Liang Y, Yuan W, Mavadia-Shukla J, Li X. Optical clearing for luminal organ imaging with ultrahigh-resolution optical coherence tomography. J Biomed Opt 2016; 21:081211. [PMID: 27335154 PMCID: PMC5994996 DOI: 10.1117/1.jbo.21.8.081211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 06/03/2016] [Indexed: 05/04/2023]
Abstract
The imaging depth of optical coherence tomography (OCT) in highly scattering biological tissues (such as luminal organs) is limited, particularly for OCT operating at shorter wavelength regions (such as around 800 nm). For the first time, the optical clearing effect of the mixture of liquid paraffin and glycerol on luminal organs was explored with ultrahigh-resolution spectral domain OCT at 800 nm. Ex vivo studies were performed on pig esophagus and bronchus, and guinea pig esophagus with different volume ratios of the mixture. We found that the mixture of 40% liquid paraffin had the best optical clearing effect on esophageal tissues with a short effective time of ∼ 10 min, which means the clearing effect occurs about 10 min after the application of the clearing agent. In contrast, no obvious optical clearing effect was identified on bronchus tissues.
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Affiliation(s)
- Yanmei Liang
- Johns Hopkins University, Department of Biomedical Engineering, Baltimore, Maryland 21205, United States
- Nankai University, Institute of Modern Optics, Key Laboratory of Optical Information Science and Technology, Ministry of Education, Tianjin 300071, China
- Address all correspondence to: Yanmei Liang, E-mail:
| | - Wu Yuan
- Johns Hopkins University, Department of Biomedical Engineering, Baltimore, Maryland 21205, United States
| | - Jessica Mavadia-Shukla
- Johns Hopkins University, Department of Biomedical Engineering, Baltimore, Maryland 21205, United States
| | - Xingde Li
- Johns Hopkins University, Department of Biomedical Engineering, Baltimore, Maryland 21205, United States
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40
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Yi CH, Lei WY, Hung JS, Liu TT, Orr WC, Fabio P, Chen CL. Differences in the Control of Secondary Peristalsis in the Human Esophagus: Influence of the 5-HT4 Receptor versus the TRPV1 Receptor. PLoS One 2016; 11:e0159452. [PMID: 27438088 PMCID: PMC4954651 DOI: 10.1371/journal.pone.0159452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/01/2016] [Indexed: 01/25/2023] Open
Abstract
Objective Acute administration of 5-hydroxytryptamine4 (5-HT4) receptor agonist, mosapride or esophageal infusion of the transient receptor potential vanilloid receptor-1 (TRPV1) agonist capsaicin promotes secondary peristalsis. We aimed to investigate whether acute esophageal instillation of capsaicin-containing red pepper sauce or administration of mosapride has different effects on the physiological characteristics of secondary peristalsis. Methods Secondary peristalsis was induced with mid-esophageal air injections in 14 healthy subjects. We compared the effects on secondary peristalsis subsequent to capsaicin-containing red pepper sauce (pure capsaicin, 0.84 mg) or 40 mg oral mosapride. Results The threshold volume for generating secondary peristalsis during slow air distensions was significantly decreased with capsaicin infusion compared to mosapride (11.6 ± 1.0 vs. 14.1 ± 0.8 mL, P = 0.02). The threshold volume required to produce secondary peristalsis during rapid air distension was also significantly decreased with capsaicin infusion (4.6 ± 0.5 vs. 5.2 ± 0.6 mL, P = 0.02). Secondary peristalsis was noted more frequently in response to rapid air distension after capsaicin infusion than mosapride (80% [60–100%] vs. 65% [5–100%], P = 0.04). Infusion of capsaicin or mosapride administration didn’t change any parameters of primary or secondary peristalsis. Conclusions Esophageal infusion with capsaicin-containing red pepper sauce suspension does create greater mechanosensitivity as measured by secondary peristalsis than 5-HT4 receptor agonist mosapride. Capsaicin-sensitive afferents appear to be more involved in the sensory modulation of distension-induced secondary peristalsis.
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Affiliation(s)
- Chih-Hsun Yi
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - Wei-Yi Lei
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - Jui-Sheng Hung
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - Tso-Tsai Liu
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - William C. Orr
- Lynn Institute for Healthcare Research, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States of America
| | - Pace Fabio
- Division of Gastroenterology, Department of Clinical Sciences, L. Sacco University Hospital, Milano, Italy
| | - Chien-Lin Chen
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
- * E-mail:
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Li Q, Tanaka Y, Saitoh Y, Miwa N. Effects of Platinum Nanocolloid in Combination with Gamma Irradiation on Normal Human Esophageal Epithelial Cells. J Nanosci Nanotechnol 2016; 16:5345-5352. [PMID: 27483929 DOI: 10.1166/jnn.2016.12362] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Our previous study demonstrated that platinum nanocolloid (Pt-nc), combined with lower-dose gamma irradiation at 3, 5, and 7 Gy significantly decreased proliferation and accelerated apoptosis of the human esophageal squamous cell carcinoma-derived cell line KYSE-70. The aim of the present study was to determine, under the same conditions as our previous study where gamma rays combined with Pt-nc were carcinostatic to KYSE-70 cells, if we could induce a radioprotective or the radiation-sensitizing effect on the human normal esophageal epithelial cells (HEEpiC). HEEpiC were treated with various Pt-nc concentrations and then irradiated with various gamma-ray doses. The proliferative status of HEEpiC was evaluated using trypan blue dye-exclusion and WST-8 assays. The cellular and nucleic morphological features were determined using crystal violet and Hoechst 33342 stainings, respectively. The intracellular level of reactive oxygen species (ROS) in HEEpiC was evaluated with a nitro blue tetrazolium (NBT) assay. The apoptotic status was detected with caspase-3, Bax, and Bcl-2 by Western blotting. Either Pt-nc or gamma irradiation could inhibit the growth of HEEpiC; however, their combined use exerted a significant proliferation-inhibitory effect in a Pt-nc dose-dependent manner than gamma irradiation alone. Pt-nc resulted in radiation sensitization rather than radiation protection on HEEpiC in vitro similar to KYSE-70 cells, when Pt-nc was administrated alone or combined with gamma irradiation. Thus, Pt-nc has an inhibitory effect on cell proliferation, a facilitative effect on apoptosis, and a certain degree of toxicity against HEEpiC.
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Shan J, Oshima T, Wu L, Fukui H, Watari J, Miwa H. Interferon γ-Induced Nuclear Interleukin-33 Potentiates the Release of Esophageal Epithelial Derived Cytokines. PLoS One 2016; 11:e0151701. [PMID: 26986625 PMCID: PMC4795790 DOI: 10.1371/journal.pone.0151701] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 03/02/2016] [Indexed: 12/14/2022] Open
Abstract
Background Esophageal epithelial cells are an initiating cell type in esophageal inflammation, playing an essential role in the pathogenesis of gastroesophageal reflux disease (GERD). A new tissue-derived cytokine, interleukin-33 (IL-33), has been shown to be upregulated in esophageal epithelial cell nuclei in GERD, taking part in mucosal inflammation. Here, inflammatory cytokines secreted by esophageal epithelial cells, and their regulation by IL-33, were investigated. Methods In an in vitro stratified squamous epithelial model, IL-33 expression was examined using quantitative RT-PCR, western blot, ELISA, and immunofluorescence. Epithelial cell secreted inflammatory cytokines were examined using multiplex flow immunoassay. IL-33 was knocked down with small interfering RNA (siRNA) in normal human esophageal epithelial cells (HEECs). Pharmacological inhibitors and signal transducers and activators of transcription 1 (STAT1) siRNA were used to explore the signaling pathways. Results Interferon (IFN)γ treatment upregulated nuclear IL-33 in HEECs. Furthermore, HEECs can produce various inflammatory cytokines, such as IL-6, IL-8, monocyte chemoattractant protein 1 (MCP-1), regulated on activation normal T-cell expressed and presumably secreted (RANTES), and granulocyte-macrophage colony-stimulating factor (GM-CSF) in response to IFNγ. Nuclear, but not exogenous IL-33, amplified IFN induction of these cytokines. P38 mitogen-activated protein kinase (MAPK) and janus protein tyrosine kinases (JAK)/STAT1 were the common signaling pathways of IFNγ-mediated induction of IL-33 and other cytokines. Conclusions Esophageal epithelial cells can actively participate in GERD pathogenesis through the production of various cytokines, and epithelial-derived IL-33 might play a central role in the production of these cytokines.
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Affiliation(s)
- Jing Shan
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
- Department of Gastroenterology, The Third People's Hospital of Chengdu, Chengdu, China
| | - Tadayuki Oshima
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
- * E-mail:
| | - Liping Wu
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
- Department of Gastroenterology, The Third People's Hospital of Chengdu, Chengdu, China
| | - Hirokazu Fukui
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Jiro Watari
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroto Miwa
- Division of Gastroenterology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Japan
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Zhang YS, Shen Q, Li J. Traditional Chinese medicine targeting apoptotic mechanisms for esophageal cancer therapy. Acta Pharmacol Sin 2016; 37:295-302. [PMID: 26707140 PMCID: PMC4775842 DOI: 10.1038/aps.2015.116] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 10/10/2015] [Indexed: 02/06/2023] Open
Abstract
Esophageal cancer is one of the most common types of cancer in the world, and it demonstrates a distinct geographical distribution pattern in China. In the last decade, inducing apoptosis with traditional Chinese medicine (TCM) has become an active area in both fundamental and clinical research on cancer therapy. In this review, we summarize the molecular mechanisms by which TCM induces apoptosis in esophageal cancer cells. These mechanisms are generally related but not limited to targeting the extrinsic death receptor pathway, the intrinsic mitochondrial pathway, and the endoplasmic reticulum (ER) stress pathway. By using different monomers and composite prescriptions of TCM, it is possible to modulate the ratio of Bcl-2/Bax, regulate the expression of caspase proteases and mitochondrial transmembrane potential, increase the expression of Fas and p53, down-regulate NF-κB pathway and the expression of Chop and survivin, and block cell cycle progression.
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Affiliation(s)
- Yu-shuang Zhang
- Department of Traditional Chinese Medicine, the Fourth Affiliated Hospital, Hebei Medical University, Shijiazhuang 050011, China
- Dysphagia Key Laboratory of Chinese Medicine of Hebei Province, Shijiazhuang 050011, China
| | - Qiang Shen
- Department of Clinical Cancer Prevention, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jing Li
- Department of Traditional Chinese Medicine, the Fourth Affiliated Hospital, Hebei Medical University, Shijiazhuang 050011, China
- Dysphagia Key Laboratory of Chinese Medicine of Hebei Province, Shijiazhuang 050011, China
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Shima T, Shiina T, Naitou K, Nakamori H, Sano Y, Shimizu Y. Does the capsaicin-sensitive local neural circuit constitutively regulate vagally evoked esophageal striated muscle contraction in rats? J Physiol Sci 2016; 66:105-11. [PMID: 26424590 PMCID: PMC10717485 DOI: 10.1007/s12576-015-0401-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/07/2015] [Indexed: 01/06/2023]
Abstract
To determine whether a capsaicin-sensitive local neural circuit constitutively modulates vagal neuromuscular transmission in the esophageal striated muscle or whether the neural circuit operates in a stimulus-dependent manner, we compared the motility of esophageal preparations isolated from intact rats with those in which capsaicin-sensitive neurons had been destroyed. Electrical stimulation of the vagus nerve trunk evoked contractile responses in the esophagus isolated from a capsaicin-treated rat in a manner similar to those in the esophagus from a control rat. No obvious differences were observed in the inhibitory effects of D-tubocurarine on intact and capsaicin-treated rat esophageal motility. Destruction of the capsaicin-sensitive neurons did not significantly affect latency, time to peak and duration of a vagally evoked twitch-like contraction. These findings indicate that the capsaicin-sensitive neural circuit does not operate constitutively but rather is activated in response to an applied stimulus.
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Affiliation(s)
- Takeshi Shima
- Laboratory of Physiology, Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Takahiko Shiina
- Laboratory of Physiology, Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
| | - Kiyotada Naitou
- Laboratory of Physiology, Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiroyuki Nakamori
- Laboratory of Physiology, Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yuuki Sano
- Laboratory of Physiology, Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yasutake Shimizu
- Laboratory of Physiology, Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
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Mishan MA, Ahmadiankia N, Matin MM, Heirani-Tabasi A, Shahriyari M, Bidkhori HR, Naderi-Meshkin H, Bahrami AR. Role of Berberine on molecular markers involved in migration of esophageal cancer cells. Cell Mol Biol (Noisy-le-grand) 2015; 61:37-43. [PMID: 26667771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 12/11/2015] [Indexed: 06/05/2023]
Abstract
Berberine is an isoquinoline alkaloid found in several plant species like famous chinese herb, Rhizoma coptidis which has been used locally as a strong gastrointestinal remedy for thousands of years. The inhibitory effects of berberine on tumor progression properties have been reported before. In this study, we investigated the effect of berberine on an esophageal cancer cell line, KYSE-30 with emphasis on its effects on the expression of certain chemokine receptors. The cytotoxic effect of berberine on KYSE-30 cells was analyzed by MTT assay. In vitro cell migration assay was also applied to the treated cells and the expression levels of the selected chemokine receptors (CXCR4 and CCR7) was measured at mRNA level. A retarded growth, associated with increasing concentrations of berberine, was obvious. On the other hand, the migration rate of the cells was decreased when they were treated with different concentrations of berberine and the expression levels of the two chemokine receptors, involved in the migration and metastasis of esophageal cancer cells, were decreased following the same treatments. With these results, we tend to conclude that berberine might be a proper candidate for further investigations, by targeting the chemokine receptors, and possible applications as anti-metastatic agent in cancer studies.
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MESH Headings
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Berberine/isolation & purification
- Berberine/pharmacology
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Cell Line, Tumor
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Dose-Response Relationship, Drug
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Epithelial Cells/drug effects
- Epithelial Cells/metabolism
- Epithelial Cells/pathology
- Esophagus/drug effects
- Esophagus/metabolism
- Esophagus/pathology
- Gene Expression Regulation, Neoplastic
- Humans
- RNA, Messenger/antagonists & inhibitors
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, CCR7/antagonists & inhibitors
- Receptors, CCR7/genetics
- Receptors, CCR7/metabolism
- Receptors, CXCR4/antagonists & inhibitors
- Receptors, CXCR4/genetics
- Receptors, CXCR4/metabolism
- Signal Transduction
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Affiliation(s)
- M A Mishan
- Ferdowsi University of Mashhad Department of Biology, Faculty of Science Mashhad Iran
| | - N Ahmadiankia
- Shahroud University of Medical Sciences Shahroud Iran
| | - M M Matin
- Ferdowsi University of Mashhad Department of Biology, Faculty of Science Mashhad Iran
| | - A Heirani-Tabasi
- ACECR-Khorasan Razavi Branch Stem Cells and Regenerative Medicine Research Department, Mashhad Iran
| | - M Shahriyari
- ACECR-Khorasan Razavi Branch Stem Cells and Regenerative Medicine Research Department, Mashhad Iran
| | - H R Bidkhori
- ACECR-Khorasan Razavi Branch Stem Cells and Regenerative Medicine Research Department, Mashhad Iran
| | - H Naderi-Meshkin
- ACECR-Khorasan Razavi Branch Stem Cells and Regenerative Medicine Research Department, Mashhad Iran
| | - A R Bahrami
- Ferdowsi University of Mashhad Department of Biology, Faculty of Science Mashhad Iran
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Chiba Y, Matsumiya T, Satoh T, Hayakari R, Furudate K, Xing F, Yoshida H, Tanji K, Mizukami H, Imaizumi T, Ito E. Retinoic acid-inducible gene-I-like receptor (RLR)-mediated antiviral innate immune responses in the lower respiratory tract: Roles of TRAF3 and TRAF5. Biochem Biophys Res Commun 2015; 467:191-6. [PMID: 26454171 DOI: 10.1016/j.bbrc.2015.10.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 10/02/2015] [Indexed: 12/24/2022]
Abstract
Upon viral infection, the cytoplasmic viral sensor retinoic acid-inducible gene-I (RIG-I) recognizes viral RNA to activate antiviral signaling to induce type I interferon (IFN). RIG-I-like receptors (RLRs) activate antiviral signaling in a tissue-specific manner. The molecular mechanism underlying antiviral signaling in the respiratory system remains unclear. We studied antiviral signaling in the lower respiratory tract (LRT), which is the site of many harmful viral infections. Epithelial cells of the LRT can be roughly divided into two groups: bronchial epithelial cells (BECs) and pulmonary alveolar epithelial cells (AECs). These two cell types exhibit different phenotypes; therefore, we hypothesized that these cells may play different roles in antiviral innate immunity. We found that BECs exhibited higher antiviral activity than AECs. TNF receptor-associated factor 3 (TRAF3) has been shown to be a crucial molecule in RLR signaling. The expression levels of TRAF3 and TRAF5, which have conserved domains that are nearly identical, in the LRT were examined. We found that the bronchus exhibited the highest expression levels of TRAF3 and TRAF5 in the LRT. These findings suggest the importance of the bronchus in antiviral innate immunity in the LRT and indicate that TRAF3 and TRAF5 may contribute to RLR signaling.
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Affiliation(s)
- Yuki Chiba
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tomoh Matsumiya
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Tsugumi Satoh
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ryo Hayakari
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Ken Furudate
- Department of Dentistry and Oral Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Fei Xing
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hidemi Yoshida
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kunikazu Tanji
- Department of Neuropathology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Hiroki Mizukami
- Department of Pathology and Molecular Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Tadaatsu Imaizumi
- Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Etsuro Ito
- Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Pi J, Cai H, Jin H, Yang F, Jiang J, Wu A, Zhu H, Liu J, Su X, Yang P, Cai J. Qualitative and Quantitative Analysis of ROS-Mediated Oridonin-Induced Oesophageal Cancer KYSE-150 Cell Apoptosis by Atomic Force Microscopy. PLoS One 2015; 10:e0140935. [PMID: 26496199 PMCID: PMC4619704 DOI: 10.1371/journal.pone.0140935] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 09/30/2015] [Indexed: 12/12/2022] Open
Abstract
High levels of intracellular reactive oxygen species (ROS) in cells is recognized as one of the major causes of cancer cell apoptosis and has been developed into a promising therapeutic strategy for cancer therapy. However, whether apoptosis associated biophysical properties of cancer cells are related to intracellular ROS functions is still unclear. Here, for the first time, we determined the changes of biophysical properties associated with the ROS-mediated oesophageal cancer KYSE-150 cell apoptosis using high resolution atomic force microscopy (AFM). Oridonin was proved to induce ROS-mediated KYSE-150 cell apoptosis in a dose dependent manner, which could be reversed by N-acetylcysteine (NAC) pretreatment. Based on AFM imaging, the morphological damage and ultrastructural changes of KYSE-150 cells were found to be closely associated with ROS-mediated oridonin-induced KYSE-150 cell apoptosis. The changes of cell stiffness determined by AFM force measurement also demonstrated ROS-dependent changes in oridonin induced KYSE-150 cell apoptosis. Our findings not only provided new insights into the anticancer effects of oridonin, but also highlighted the use of AFM as a qualitative and quantitative nanotool to detect ROS-mediated cancer cell apoptosis based on cell biophysical properties, providing novel information of the roles of ROS in cancer cell apoptosis at nanoscale.
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Affiliation(s)
- Jiang Pi
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Huaihong Cai
- Department of Chemistry, Jinan University, GuangZhou, China
| | - Hua Jin
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Fen Yang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Jinhuan Jiang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Anguo Wu
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Haiyan Zhu
- Department of Chemistry, Jinan University, GuangZhou, China
| | - Jianxin Liu
- Department of Chemistry, Jinan University, GuangZhou, China
- Department of Pharmacology, Hunan University of Medicine, HuaiHua, China
| | - Xiaohui Su
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Peihui Yang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
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Vogtmann E, Corley DA, Almers LM, Cardwell CR, Murray LJ, Abnet CC. Oral Bisphosphonate Exposure and the Risk of Upper Gastrointestinal Cancers. PLoS One 2015; 10:e0140180. [PMID: 26445463 PMCID: PMC4596624 DOI: 10.1371/journal.pone.0140180] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 09/21/2015] [Indexed: 01/04/2023] Open
Abstract
The association between oral bisphosphonate use and upper gastrointestinal cancer has been controversial. Therefore, we examined the association with esophageal and gastric cancer within the Kaiser Permanente, Northern California population. A total of 1,011 cases of esophageal (squamous cell carcinoma and adenocarcinoma) and 1,923 cases of gastric adenocarcinoma (cardia, non-cardia and other) diagnosed between 1997 and 2011 from the Kaiser Permanente, Northern California cancer registry were matched to 49,886 and 93,747 controls, respectively. Oral bisphosphonate prescription fills at least one year prior to the index date were extracted. Conditional logistic regression was used to calculate odds ratios (OR) and 95% confidence intervals (95% CI) for the associations between prospectively evaluated oral bisphosphonate use with incident esophageal and gastric cancer diagnoses with adjustment for potential confounders. After adjustment for potential confounders, no significant associations were found for esophageal squamous cell carcinoma (OR 0.88; 95% CI: 0.51, 1.52), esophageal adenocarcinoma (OR 0.68; 95% CI: 0.37, 1.24), or gastric non-cardia adenocarcinoma (OR 0.83, 95% CI: 0.59, 1.18), but we observed an adverse association with gastric cardia adenocarcinoma (OR 1.64; 95% CI: 1.07, 2.50). In conclusion, we observed no association between oral bisphosphonate use and esophageal cancer risk within a large community-based population. A significant association was detected with gastric cardia and other adenocarcinoma risk, although this needs to be replicated.
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Affiliation(s)
- Emily Vogtmann
- Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
- Cancer Prevention Fellowship Program, Division of Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
| | - Douglas A. Corley
- Division of Research, Kaiser Permanente, Oakland, California, United States of America
| | - Lucy M. Almers
- Division of Research, Kaiser Permanente, Oakland, California, United States of America
| | - Chris R. Cardwell
- Centre for Public Health, Queen’s University Belfast, Belfast, United Kingdom
| | - Liam J. Murray
- Centre for Public Health, Queen’s University Belfast, Belfast, United Kingdom
| | - Christian C. Abnet
- Nutritional Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, United States of America
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Zhang S, Bellinger AM, Glettig DL, Barman R, Lee YAL, Zhu J, Cleveland C, Montgomery VA, Gu L, Nash LD, Maitland DJ, Langer R, Traverso G. A pH-responsive supramolecular polymer gel as an enteric elastomer for use in gastric devices. Nat Mater 2015; 14:1065-1071. [PMID: 26213897 PMCID: PMC4772966 DOI: 10.1038/nmat4355] [Citation(s) in RCA: 209] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 06/17/2015] [Indexed: 05/19/2023]
Abstract
Devices resident in the stomach-used for a variety of clinical applications including nutritional modulation for bariatrics, ingestible electronics for diagnosis and monitoring, and gastric-retentive dosage forms for prolonged drug delivery-typically incorporate elastic polymers to compress the devices during delivery through the oesophagus and other narrow orifices in the digestive system. However, in the event of accidental device fracture or migration, the non-degradable nature of these materials risks intestinal obstruction. Here, we show that an elastic, pH-responsive supramolecular gel remains stable and elastic in the acidic environment of the stomach but can be dissolved in the neutral-pH environment of the small and large intestines. In a large animal model, prototype devices with these materials as the key component demonstrated prolonged gastric retention and safe passage. These enteric elastomers should increase the safety profile for a wide range of gastric-retentive devices.
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Affiliation(s)
- Shiyi Zhang
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Andrew M. Bellinger
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115
| | - Dean L. Glettig
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Ross Barman
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
| | - Young-Ah Lucy Lee
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Jiahua Zhu
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831
| | - Cody Cleveland
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Veronica A Montgomery
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Li Gu
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Landon D. Nash
- Department of Biomedical Engineering, Biomedical Device Laboratory, Texas A&M University, College Station, TX 77843
| | - Duncan J. Maitland
- Department of Biomedical Engineering, Biomedical Device Laboratory, Texas A&M University, College Station, TX 77843
| | - Robert Langer
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Harvard–MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139
- To whom correspondence may be addressed. or
| | - Giovanni Traverso
- Department of Chemical Engineering and Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
- Division of Gastroenterology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114
- To whom correspondence may be addressed. or
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Shaprynskyi EV, Datsyuk OI. [THE TREATMENT TACTICS AND PERIOPERATIVE INTENSIVE THERAPY IN STENOSING ESOPHAGEAL DISEASES]. Klin Khir 2015:15-17. [PMID: 26946651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The treatment tactics and intensive therapy in stenosing esophageal diseases for 222 patients in 2003 - 2015 yrs were analyzed. Expediency of application of the proposed treatment tactics was noted.
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