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Wang Y, Qin J, Dong L, He C, Zhang D, Wu X, Li T, Yue H, Mu L, Wang Q, Yang J. Suppression of mir-150-5p attenuates the anti-inflammatory effect of glucocorticoids in mice with ulcerative colitis. Mol Immunol 2023; 163:28-38. [PMID: 37729776 DOI: 10.1016/j.molimm.2023.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/08/2023] [Accepted: 09/05/2023] [Indexed: 09/22/2023]
Abstract
Glucocorticoids have been widely used in the treatment of ulcerative colitis, but not all patients benefit from this therapy due to hormone resistance. Mir-150-5p has been reported to enhance the efficacy of glucocorticoids, and low serum mir-150-5p expression has been linked to glucocorticoid resistance in ulcerative colitis patients. The aim of this study was to elucidate the mechanisms of mir-150-5p regulation on glucocorticoid resistance. An ulcerative colitis mouse model was used to evaluate changes in ulcerative colitis symptoms, inflammatory factors, and glucocorticoid resistance-related gene expression. The results showed that mir-150-5p suppression with antagomirs did not significantly interfere with or enhance the induction of ulcerative colitis symptoms by dextran sulfate sodium, but it did attenuate the inflammation inhibitory effect of dexamethasone by abnormally regulating the expression of IL-17a, IL-10, IL-2 and IL-6 levels and myeloperoxidase activity. Mir-150-5p inhibition also induced a glucocorticoid-resistant gene expression profile in colon tissues of ulcerative colitis mice, with upregulation of p-ERK, p-JNK, and HSP90 and downregulation of p-GRa, FKBP4, and HDAC2 expression. Our results indicate that mir-150-5p suppression attenuates the anti-inflammatory effect of glucocorticoids and may function as a driver element in ulcerative colitis glucocorticoid resistance. AVAILABILITY OF DATA AND MATERIALS: All data and figures analyzed in this study are available from the corresponding author by request.
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Affiliation(s)
- Yijie Wang
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Jiahong Qin
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lihong Dong
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Chen He
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Dapeng Zhang
- Department of Internal Medicine, Kunming Meizhao Physical Examination Center, Kunming, China
| | - Xue Wu
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ting Li
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Haidong Yue
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Lingjie Mu
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Qiang Wang
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jilin Yang
- Department of Intensive Care Unit, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
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Madaeva IM, Kurashova NA, Semenova NV, Kolesnikova LI, Kolesnikov SI. Association Of Nocturnal Intermittent Hypoxia With Heat Shock Protein 70 In Patients With Obstructive Sleep Apnea: A Pilot Study. RUSSIAN OPEN MEDICAL JOURNAL 2020. [DOI: 10.15275/rusomj.2020.0401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introduction — Nocturnal intermittent hypoxia in obstructive sleep apnea (OSA) causes cellular stress and consequent change in inducible heat shock protein 70 (HSP70) level. Thus, the objective of this study was to determine the relationship among nocturnal hypoxia and the serum HSP70 level in patients with severe OSA. Material and Methods — The study involved 34 patients with a clinical diagnosis of moderate to severe OSA (24 men and 10 women). Patients without OSA (10 men and 5 women) were included as a control group. The groups were similar in age. The polysomnographic monitoring was carried by standart methodology. Blood sampling for determining the HSP70 level was carried out between 8:00 and 9:00 am after polysomnographic monitoring. Results — The results of this study demonstrated a high apnea/hypopnea index (AHI), which determined the OSA severity and decreased the blood oxygen saturation (SaO2) (p<0.05). Sleep fragmentation in OSA patients confirmed an increase in respiratory arousal index (ArI). The HSP70 level significantly increased in OSA patients compared with the control group. Correlation analysis showed a positive relationship between HSP70 and AHI (R=0.5) in patients with OSAS, as well as a negative relationship between HSP70 and SaO2 (R=-0.3). Conclusion — Our results demonstrated a high level of HSP70 in patients with severe OSA syndrome vs. those without it. In OSA patients, a direct correlation was found between the HSP70 level and AHI, as well as an inverse correlation between the AHI level and SaO2. These findings suggested an association between the level of inducible HSP70 and nocturnal hypoxia in OSA patients.
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Affiliation(s)
- Irina M. Madaeva
- Scientific Сentre for Family Health and Human Reproduction Problems
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Hou HW, Wang JM, Wang D, Wu R, Ji ZL. Triptolide exerts protective effects against fibrosis following ileocolonic anastomosis by mechanisms involving the miR-16-1/HSP70 pathway in IL-10-deficient mice. Int J Mol Med 2017. [PMID: 28627592 PMCID: PMC5505014 DOI: 10.3892/ijmm.2017.3016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Surgeries, particularly ileocecal resection (ICR), are often required in the treatment of Crohn's disease (CD). However, recurrences are common for patients who undergo ICR, and anastomotic fibrosis is the main cause of re-operation. The present study aimed to investigate the therapeutic effects of triptolide (TPL) in ameliorating fibrosis following ileocolonic anastomosis. A model of IL-10−/− mice undergoing ICR was used to study post surgical inflammation and fibrosis of anastomosis. For this purpsose, interleukin (IL)-10−/− mice were randomly divided into 3 groups as follows: the control group, the saline-treated group subjected to ICR (ST-ICR) and the TPL-treated group subjected to ICR (TT-ICR). Wild-type (WT) mice of matching ages were assigned to the WT group. The effects of TPL treatment on ileocolonic anastomosis were determined by histopathological evaluation, western blot analysis and ELISA. The analysis of the effects of TPL treatment on microRNA-16-1 (miR-16-1) and heat shock protein 70 (HSP70) expression was carried out by RT-qPCR and western blot analysis. Compared with the control group, significantly higher inflammation scores following anastomosis were observed in the ST-ICR group (P<0.05), although reversion was observed in the TT-ICR group, which was consistent with changes in the area of CD4+ cell infiltration. The elevated fibrosis scores and the overexpression of procollagen I and III in the ST-ICR group were all inhibited by TPL. With an increase in the severity of inflammation and fibrosis, the levels of IL-6, tumor necrosis factor-α (TNF-α) and transforming growth factor-β1 (TGF-β1) increased; however, a significant decrease in these levels was observed following treatment with TPL (P<0.05). The results of RT-qPCR revealed that the upregulated miR-16-1 levels in the ST-ICR group were significantly reduced by TPL. HSP70, which can be inhibited by miR-16-1, ameliorates anastomotic inflammation and fibrosis. Thus, the present study demonstrates that TPL exerts a protective effect against fibrosis following anastomosis in CD. The miR-16-1/HSP70 signaling pathway, which can be regulated by TPL, may thus represent a novel therapeutic option in CD that deserves further investigation.
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Affiliation(s)
- Hong-Wei Hou
- Department of General Surgery, Southeast University Medical School, Nanjing, Jiangsu 210009, P.R. China
| | - Jin-Min Wang
- Department of General Surgery, Southeast University Medical School, Nanjing, Jiangsu 210009, P.R. China
| | - Dong Wang
- Department of General Surgery, Southeast University Medical School, Nanjing, Jiangsu 210009, P.R. China
| | - Rong Wu
- Department of General Surgery, Southeast University Medical School, Nanjing, Jiangsu 210009, P.R. China
| | - Zhen-Ling Ji
- Department of General Surgery, Southeast University Medical School, Nanjing, Jiangsu 210009, P.R. China
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McDaniel DK, Eden K, Ringel VM, Allen IC. Emerging Roles for Noncanonical NF-κB Signaling in the Modulation of Inflammatory Bowel Disease Pathobiology. Inflamm Bowel Dis 2016; 22:2265-79. [PMID: 27508514 PMCID: PMC4992436 DOI: 10.1097/mib.0000000000000858] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Crohn's disease and ulcerative colitis are common and debilitating manifestations of inflammatory bowel disease (IBD). IBD is characterized by a radical imbalance in the activation of proinflammatory and anti-inflammatory signaling pathways in the gut. These pathways are controlled by NF-κB, which is a master regulator of gene transcription. In IBD patients, NF-κB signaling is often dysregulated resulting in overzealous inflammation. NF-κB activation occurs through 2 distinct pathways, defined as either canonical or noncanonical. Canonical NF-κB pathway activation is well studied in IBD and is associated with the rapid, acute production of diverse proinflammatory mediators, such as COX-2, IL-1β, and IL-6. In contrast to the canonical pathway, the noncanonical or "alternative" NF-κB signaling cascade is tightly regulated and is responsible for the production of highly specific chemokines that tend to be associated with less acute, chronic inflammation. There is a relative paucity of literature regarding all aspects of noncanonical NF-ĸB signaling. However, it is clear that this alternative signaling pathway plays a considerable role in maintaining immune system homeostasis and likely contributes significantly to the chronic inflammation underlying IBD. Noncanonical NF-κB signaling may represent a promising new direction in the search for therapeutic targets and biomarkers associated with IBD. However, significant mechanistic insight is still required to translate the current basic science findings into effective therapeutic strategies.
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Affiliation(s)
- Dylan K. McDaniel
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24061
| | - Kristin Eden
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24061
| | - Veronica M. Ringel
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA 24061
| | - Irving C. Allen
- Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24061
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA 24061
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Sozutek A, Ozyazici S, Colak T, Cetınkunar S, Irkorucu O, Bobusoglu O, Cennet A. Evaluating the effect of infliximab on the healing of left colonic anastomosis in the presence of intra-abdominal sepsis. Arab J Gastroenterol 2016; 17:84-9. [DOI: 10.1016/j.ajg.2016.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 05/17/2016] [Accepted: 05/24/2016] [Indexed: 10/21/2022]
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Qu B, Jia Y, Liu Y, Wang H, Ren G, Wang H. The detection and role of heat shock protein 70 in various nondisease conditions and disease conditions: a literature review. Cell Stress Chaperones 2015; 20:885-92. [PMID: 26139132 PMCID: PMC4595429 DOI: 10.1007/s12192-015-0618-8] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 06/08/2015] [Accepted: 06/23/2015] [Indexed: 12/26/2022] Open
Abstract
As an intracellular polypeptide, heat shock protein 70 (HSP70) can be exposed on the plasma membrane and/or released into the circulation. However, the role of HSP70 in various nondisease and disease conditions remains unknown. Quantitative methods for the detection of HSP70 have been used in clinical studies, revealing that an increase in circulating HSP70 is associated with various types of exercise, elderly patients presenting with inflammation, mobile phones, inflammation, sepsis, chronic obstructive pulmonary disease, asthma, carotid intima-media thickness, glutamine-treated ill patients, mortality, diabetes mellitus, active chronic glomerulonephritis, and cancers. Circulating HSP70 decreases with age in humans and in obstructive sleep apnea, arteriosclerosis, atrial fibrillation (AF) following coronary artery bypass surgery, nonalcoholic fatty liver disease, moderate-to-severe alcoholic fatty liver disease, hepatic steatosis, and Helicobacter pylori infection. In conclusion, quantitative methods can be used to detect HSP70, particularly in determining circulating HSP70 levels, using more convenient and rapid screening methods. Studies have shown that changes in HSP70 are associated with various nondisease and disease conditions; thus, HSP70 might be a novel potential biomarker reflecting various nondisease conditions and also the severity of disease conditions. However, the reliability and accuracy, as well as the underlying mechanism, of this relationship remain poorly understood, and large-sample clinical research must be performed to verify the role.
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Affiliation(s)
- Baoge Qu
- Internal Medicine, Taishan Hospital, No. 3 Tianwaicun Street, Taian City, Shandong, 271000, People's Republic of China.
| | - Yiguo Jia
- Internal Medicine, Taishan Hospital, No. 3 Tianwaicun Street, Taian City, Shandong, 271000, People's Republic of China
| | - Yuanxun Liu
- Internal Medicine, Taishan Hospital, No. 3 Tianwaicun Street, Taian City, Shandong, 271000, People's Republic of China
| | - Hui Wang
- Internal Medicine, Taishan Hospital, No. 3 Tianwaicun Street, Taian City, Shandong, 271000, People's Republic of China
| | - Guangying Ren
- Internal Medicine, Taishan Hospital, No. 3 Tianwaicun Street, Taian City, Shandong, 271000, People's Republic of China
| | - Hong Wang
- Internal Medicine, Taishan Hospital, No. 3 Tianwaicun Street, Taian City, Shandong, 271000, People's Republic of China
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Sinagra E, Raimondo D, Tomasello G, Morreale GC, Amvrosiadis G, Cappello F. Heat shock proteins and ulcerative colitis: The start of a new era? Arab J Gastroenterol 2015; 16:39. [PMID: 26166541 DOI: 10.1016/j.ajg.2015.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Accepted: 04/12/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Emanuele Sinagra
- Fondazione Istituto S. Raffaele- G. Giglio, Gastroenterology and Endoscopy Unit, Contrada Pietrapollastra Pisciotto, 90015 Cefalù, Italy; Surgical Biotechnology and Regenerative Medicine, School of Medicine, University of Palermo, Italy; Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy.
| | - Dario Raimondo
- Fondazione Istituto S. Raffaele- G. Giglio, Gastroenterology and Endoscopy Unit, Contrada Pietrapollastra Pisciotto, 90015 Cefalù, Italy
| | - Giovanni Tomasello
- Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy; Department of Surgical and Oncological Sciences, University of Palermo, Palermo, Italy
| | - Gaetano Cristian Morreale
- Gastroenterology Unit, Ospedali Riuniti "Villa Sofia- V. Cervello", via Trabucco 180, 90146 Palermo, Italy
| | - Georgios Amvrosiadis
- Gastroenterology Unit, Ospedali Riuniti "Villa Sofia- V. Cervello", via Trabucco 180, 90146 Palermo, Italy
| | - Francesco Cappello
- Euro-Mediterranean Institute of Science and Technology (IEMEST), Palermo, Italy; Department of Experimental Biomedicine and Clinical Neuroscience, Section of Human Anatomy, University of Palermo, Palermo, Italy
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