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Ray N, Park SJ, Jung H, Kim J, Korcsmaros T, Moon Y. Stress-responsive Gdf15 counteracts renointestinal toxicity via autophagic and microbiota reprogramming. Commun Biol 2023; 6:602. [PMID: 37270567 DOI: 10.1038/s42003-023-04965-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 05/22/2023] [Indexed: 06/05/2023] Open
Abstract
The integrated stress response (ISR) plays a pivotal role in the cellular stress response, primarily through global translational arrest and the upregulation of cellular adaptation-linked molecules. Growth differentiation factor 15 (Gdf15) is a potent stress-responsive biomarker of clinical inflammatory and metabolic distress in various types of diseases. Herein, we assess whether ISR-driven cellular stress contributes to pathophysiological outcomes by modulating Gdf15. Clinical transcriptome analysis demonstrates that PKR is positively associated with Gdf15 expression in patients with renal injury. Gdf15 expression is dependent on protein kinase R (PKR)-linked ISR during acute renointestinal distress in mice and genetic ablation of Gdf15 aggravates chemical-induced lesions in renal tissues and the gut barrier. An in-depth evaluation of the gut microbiota indicates that Gdf15 is associated with the abundance of mucin metabolism-linked bacteria and their enzymes. Moreover, stress-responsive Gdf15 facilitates mucin production and cellular survival via the reorganization of the autophagy regulatory network. Collectively, ISR-activated Gdf15 counteracts pathological processes via the protective reprogramming of the autophagic network and microbial community, thereby providing robust predictive biomarkers and interventions against renointestinal distress.
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Affiliation(s)
- Navin Ray
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Korea
| | - Seung Jun Park
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Korea
| | - Hoyung Jung
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Korea
| | - Juil Kim
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Korea
| | - Tamas Korcsmaros
- Division of Digestive Diseases, Faculty of Medicine, Imperial College London, London, UK
- Earlham Institute, Norwich Research Park, Norwich, UK
- Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Yuseok Moon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences, Pusan National University, Yangsan, Korea.
- Earlham Institute, Norwich Research Park, Norwich, UK.
- Graduate Program of Genomic Data Sciences, Pusan National University, Yangsan, Korea.
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Sun J, Kim J, Jeong H, Kwon D, Moon Y. Xenobiotic-induced ribosomal stress compromises dysbiotic gut barrier aging: A one health perspective. Redox Biol 2022; 59:102565. [PMID: 36470131 PMCID: PMC9720106 DOI: 10.1016/j.redox.2022.102565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Upon exposure to internal or environmental insults, ribosomes stand sentinel. In particular, stress-driven dysregulation of ribosomal homeostasis is a potent trigger of adverse outcomes in mammalians. The present study assessed whether the ribosomal insult affects the aging process via the regulation of sentinel organs such as the gut. Analyses of the human aging dataset demonstrated that elevated features of ribosomal stress are inversely linked to barrier maintenance biomarkers during the aging process. Ribosome-insulted worms displayed reduced lifespan, which was associated with the disruption of gut barriers. Mechanistically, ribosomal stress-activated Sek-1/p38 signaling, a central platform of ribosomal stress responses, counteracted the gut barrier deterioration through the maintenance of the gut barrier, which was consistent with the results in a murine insult model. However, since the gut-protective p38 signaling was attenuated with aging, the ribosomal stress-induced distress was exacerbated in the gut epithelia and mucosa of the aged animals, subsequently leading to increased bacterial exposure. Moreover, the bacterial community-based evaluation predicted concomitant increases in the abundance of mucosal sugar utilizers and mucin metabolic enzymes in response to ribosomal insult in the aged host. All of the present evidence on ribosomal insulting against the gut barrier integrity from worms to mammals provides new insights into organelle-associated translational modulation of biological longevity in a one health perspective.
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Affiliation(s)
- Junjie Sun
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Juil Kim
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Hoyoung Jeong
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Dasom Kwon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Yuseok Moon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea; Graduate Program of Genomic Data Sciences, Pusan National University, Yangsan, 50612, South Korea.
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3
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Kelley CF, Pollack I, Yacoub R, Zhu Z, Van Doren VE, Gumber S, Amara RR, Fedirko V, Kraft CS, de Man TJB, Hu YJ, Grimsley Ackerley C, Sullivan PS, Bostick RM. Condomless receptive anal intercourse is associated with markers of mucosal inflammation in a cohort of men who have sex with men in Atlanta, Georgia. J Int AIDS Soc 2021; 24:e25859. [PMID: 34911162 PMCID: PMC8673926 DOI: 10.1002/jia2.25859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 11/25/2021] [Indexed: 11/16/2022] Open
Abstract
Introduction We previously showed that the rectal mucosal immune environment among men who have sex with men (MSM) engaging in condomless receptive anal intercourse (CRAI) is immunologically distinct from that of men who do not engage in anal intercourse (AI). Here, we further examined these differences with quantitative immunohistochemistry to better understand the geographic distribution of immune markers of interest. Methods We enrolled a cohort of MSM engaging in CRAI (n = 41) and men who do not engage in AI (n = 21) between October 2013 and April 2015. Participants were healthy, HIV‐negative men aged 18–45 from the metro Atlanta area. We performed rectal mucosal sampling via rigid sigmoidoscopy during two study visits separated by a median of nine weeks and timed with sexual activity for MSM engaging in CRAI. We used standardized, automated immunohistochemistry and quantitative image analysis to investigate the rectal mucosal distribution of neutrophils (MPO), IL‐17‐producing cells (IL‐17) and Tregs (FOXP3) in the lamina propria, and cellular proliferation (Ki67) and adherens junction protein (E‐cadherin) in the epithelium. We examined associations between biomarker expression and the rectal mucosal microbiota composition by 16s rRNA sequencing. Results Relative to the colonic crypt base, IL‐17, FOXP3, and MPO expression increased towards the rectal lumen, while Ki67 decreased and E‐cadherin was more uniformly distributed. Throughout the rectal mucosa distribution examined, MSM engaging in CRAI had higher mean lamina propria MPO expression (p = 0.04) and epithelial Ki67 (p = 0.04) compared to controls. There were no significant differences in IL‐17, FOXP3 or E‐cadherin expression. We found no significant associations of the five biomarkers with the global rectal microbiota composition or the individual taxa examined. Conclusions Understanding the mucosal distribution of inflammatory mediators can enhance our knowledge of the earliest events in HIV transmission. Neutrophil enrichment and crypt epithelial cell proliferation likely represent sub‐clinical inflammation in response to CRAI in the rectal mucosa of MSM, which could increase the risk for HIV acquisition. However, the contributory role of the microbiota in mucosal inflammation among MSM remains unclear. HIV prevention may be enhanced by interventions that reduce inflammation or capitalize on the presence of specific inflammatory mechanisms during HIV exposure.
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Affiliation(s)
- Colleen F Kelley
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA.,Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Ilana Pollack
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA
| | - Rami Yacoub
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Zhengyi Zhu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Vanessa E Van Doren
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA
| | - Sanjeev Gumber
- Division of Pathology, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Rama R Amara
- Division of Microbiology and Immunology, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, USA.,Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Veronika Fedirko
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.,Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Colleen S Kraft
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA.,Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Yi-Juan Hu
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Cassie Grimsley Ackerley
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, The Hope Clinic, Atlanta, Georgia, USA
| | - Patrick S Sullivan
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Roberd M Bostick
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
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Lewandowska P, Szczuka I, Bednarz-Misa I, Szczęśniak-Sięga BM, Neubauer K, Mierzchała-Pasierb M, Zawadzki M, Witkiewicz W, Krzystek-Korpacka M. Modulating Properties of Piroxicam, Meloxicam and Oxicam Analogues against Macrophage-Associated Chemokines in Colorectal Cancer. Molecules 2021; 26:molecules26237375. [PMID: 34885960 PMCID: PMC8659253 DOI: 10.3390/molecules26237375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/19/2021] [Accepted: 12/01/2021] [Indexed: 12/24/2022] Open
Abstract
The mechanisms underlying the antineoplastic effects of oxicams have not been fully elucidated. We aimed to assess the effect of classic and novel oxicams on the expression/secretion of macrophage-associated chemokines (RTqPCR/Luminex xMAP) in colorectal adenocarcinoma cells, and on the expression of upstream the non-steroidal anti-inflammatory drug (NSAID)-activated genes NAG1, NFKBIA, MYD88, and RELA, as well as at the chemokine profiling in colorectal tumors. Meloxicam downregulated CCL4 9.9-fold, but otherwise the classic oxicams had a negligible/non-significant effect. Novel analogues with a thiazine ring substituted with arylpiperazine and benzoyl moieties significantly modulated chemokine expression to varying degree, upregulated NAG1 and NFKBIA, and downregulated MYD88. They inhibited CCL3 and CCL4, and their effect on CCL2 and CXCL2 depended on the dose and exposure. The propylene linker between thiazine and piperazine nitrogens and one arylpiperazine fluorine substituent characterized the most effective analogue. Only CCL19 and CXCL2 were not upregulated in tumors, nor was CXCL2 in tumor-adjacent tissue compared to normal mucosa. Compared to adjacent tissue, CCL4 and CXCL2 were upregulated, while CCL2, CCL8, and CCL19 were downregulated in tumors. Tumor CCL2 and CCL7 increased along with advancing T and CCL3, and CCL4 along with the N stage. The introduction of arylpiperazine and benzoyl moieties into the oxicam scaffold yields effective modulators of chemokine expression, which act by upregulating NAG1 and interfering with NF-κB signaling.
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Affiliation(s)
- Paulina Lewandowska
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland; (P.L.); (I.S.); (I.B.-M.); (M.M.-P.)
| | - Izabela Szczuka
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland; (P.L.); (I.S.); (I.B.-M.); (M.M.-P.)
| | - Iwona Bednarz-Misa
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland; (P.L.); (I.S.); (I.B.-M.); (M.M.-P.)
| | | | - Katarzyna Neubauer
- Department and Clinics of Gastroenterology and Hepatology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Magdalena Mierzchała-Pasierb
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland; (P.L.); (I.S.); (I.B.-M.); (M.M.-P.)
| | - Marek Zawadzki
- Department of Oncological Surgery, Regional Specialist Hospital, 51-124 Wroclaw, Poland; (M.Z.); (W.W.)
- Department of Physiotherapy, Wroclaw Medical University, 51-618 Wroclaw, Poland
| | - Wojciech Witkiewicz
- Department of Oncological Surgery, Regional Specialist Hospital, 51-124 Wroclaw, Poland; (M.Z.); (W.W.)
- Research and Development Centre, Regional Specialist Hospital, 51-124 Wroclaw, Poland
| | - Małgorzata Krzystek-Korpacka
- Department of Biochemistry and Immunochemistry, Wroclaw Medical University, 50-368 Wroclaw, Poland; (P.L.); (I.S.); (I.B.-M.); (M.M.-P.)
- Correspondence: ; Tel.: +48-71-784-1370
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5
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Mucosal ribosomal stress-induced PRDM1 promotes chemoresistance via stemness regulation. Commun Biol 2021; 4:543. [PMID: 33972671 PMCID: PMC8110964 DOI: 10.1038/s42003-021-02078-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 04/06/2021] [Indexed: 12/19/2022] Open
Abstract
The majorities of colorectal cancer (CRC) cases are sporadic in origin and a large proportion of etiologies are associated with environmental stress responses. In response to external and internal stress, the ribosome stands sentinel and stress-driven ribosomal dysfunction triggers the cellular decision pathways via transcriptional reprogramming. In the present study, PR domain zinc finger protein (PRDM) 1, a master transcriptional regulator, was found to be closely associated with ribosomal actions in patients with CRC and the murine models. Stress-driven ribosomal dysfunction enhanced PRDM1 levels in intestinal cancer cells, which contributed to their survival and enhanced cancer cell stemness against cancer treatment. Mechanistically, PRDM1 facilitated clustering modulation of insulin-like growth factor (IGF) receptor-associated genes, which supported cancer cell growth and stemness-linked features. Ribosomal dysfunction-responsive PRDM1 facilitated signaling remodeling for the survival of tumor progenitors, providing compelling evidence for the progression of sporadic CRC.
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6
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Ye D, Liu B, He Z, Huang L, Qian Y, Shao K, Wen C, Mao Y. Assessing the Associations of Growth Differentiation Factor 15 with Rheumatic Diseases Using Genetic Data. Clin Epidemiol 2021; 13:245-252. [PMID: 33790654 PMCID: PMC8001121 DOI: 10.2147/clep.s305024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/11/2021] [Indexed: 12/15/2022] Open
Abstract
Objective To investigate the potential causal associations of circulating levels of growth differentiation factor 15 (GDF-15) with the risk of systemic lupus erythematosus (SLE), rheumatoid arthritis (RA) and inflammatory bowel disease (IBD) using a Mendelian randomization (MR) design. Methods A genome-wide association study (GWAS) of GDF-15 among 5,440 individuals of European ancestry was used to identify genetic instruments. Summary statistics of SLE, RA and IBD were obtained from publicly available GWASs. We conducted an MR study using the inverse-variance weighted (IVW) method, supplemented with simple-median and weighted-median methods. Cochran Q test and MR-Egger regression were used to detect potential heterogeneity and directional pleiotropy. Odds ratios (ORs) with 95% confidence intervals (95% CIs) were calculated. Results We found that genetically predicted high circulating GDF-15 levels were associated with a decreased risk of SLE (OR 0.80, 95% CI 0.68–0.92 by IVW), with similar results in sensitivity analyses. In replication analysis using summary data from another SLE GWAS, the results were consistent (OR 0.82, 95% CI 0.71–0.93 by IVW). Moreover, no evidence of heterogeneity or pleiotropy was detected. However, genetically determined circulating levels of GDF-15 were not associated with risk of RA or IBD in the primary analysis and subsequent sensitivity analyses. Conclusions Our study suggested an inverse association between circulating GDF-15 levels and risk of SLE, and further studies are warranted to elucidate the underlying biological mechanisms. There was limited evidence supporting a causal association of circulating GDF-15 levels with risk of RA and IBD.
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Affiliation(s)
- Ding Ye
- Department of Epidemiology and Biostatistics, Zhejiang Chinese Medical University School of Public Health, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Bin Liu
- Department of Epidemiology and Biostatistics, Zhejiang Chinese Medical University School of Public Health, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Zhixing He
- Institute of Basic Research in Clinical Medicine, Zhejiang Chinese Medical University School of Basic Medical Sciences, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Lin Huang
- Institute of Basic Research in Clinical Medicine, Zhejiang Chinese Medical University School of Basic Medical Sciences, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Yu Qian
- Department of Epidemiology and Biostatistics, Zhejiang Chinese Medical University School of Public Health, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Keding Shao
- Institute of Basic Research in Clinical Medicine, Zhejiang Chinese Medical University School of Basic Medical Sciences, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Chengping Wen
- Institute of Basic Research in Clinical Medicine, Zhejiang Chinese Medical University School of Basic Medical Sciences, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Yingying Mao
- Department of Epidemiology and Biostatistics, Zhejiang Chinese Medical University School of Public Health, Hangzhou, Zhejiang, 310053, People's Republic of China
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7
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Zhang Y, Cai JZ, Xiao L, Chung HK, Ma XX, Chen LL, Rao JN, Wang JY. RNA-binding protein HuR regulates translation of vitamin D receptor modulating rapid epithelial restitution after wounding. Am J Physiol Cell Physiol 2020; 319:C208-C217. [PMID: 32432928 DOI: 10.1152/ajpcell.00009.2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Homeostasis of the intestinal epithelium is tightly regulated by numerous extracellular and intracellular factors including vitamin D and the vitamin D receptor (VDR). VDR is highly expressed in the intestinal epithelium and is implicated in many aspects of gut mucosal pathophysiology, but the exact mechanism that controls VDR expression remains largely unknown. The RNA-binding protein human antigen R (HuR) regulates the stability and translation of target mRNAs and thus modulates various cellular processes and functions. Here we report a novel role of HuR in the posttranscriptional control of VDR expression in the intestinal epithelium. The levels of VDR in the intestinal mucosa decreased significantly in mice with ablated HuR, compared with control mice. HuR silencing in cultured intestinal epithelial cells (IECs) also reduced VDR levels, whereas HuR overexpression increased VDR abundance; neither intervention changed cellular Vdr mRNA content. Mechanistically, HuR bound to Vdr mRNA via its 3'-untranslated region (UTR) and enhanced VDR translation in IECs. Moreover, VDR silencing not only inhibited IEC migration over the wounded area in control cells but also prevented the increased migration in cells overexpressing HuR, although it did not alter IEC proliferation in vitro and growth of intestinal organoids ex vivo. The human intestinal mucosa from patients with inflammatory bowel diseases exhibited decreased levels of both HuR and VDR. These results indicate that HuR enhances VDR translation by directly interacting with its mRNA via 3'-UTR and that induced VDR by HuR is crucial for rapid intestinal epithelial restitution after wounding.
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Affiliation(s)
- Yunzhan Zhang
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Jia-Zhong Cai
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Lan Xiao
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Hee K Chung
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Xiang-Xue Ma
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Lin-Lin Chen
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Jaladanki N Rao
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland
| | - Jian-Ying Wang
- Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, Maryland.,Baltimore Veterans Affairs Medical Center, Baltimore, Maryland.,Department of Pathology, University of Maryland School of Medicine, Baltimore, Maryland
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Yu M, Kim J, Ahn JH, Moon Y. Nononcogenic restoration of the intestinal barrier by E. coli-delivered human EGF. JCI Insight 2019; 4:125166. [PMID: 31434808 DOI: 10.1172/jci.insight.125166] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 07/26/2019] [Indexed: 02/06/2023] Open
Abstract
Although mucoactive proteins, such as epidermal growth factor (EGF), could improve clinical outcomes of intestinal ulcerative diseases, their gastrointestinal application is limited because of their proteolytic digestion or concerns about tumor promotion. In the present study, ATP-binding cassette (ABC) transporter-linked secretion of human EGF from probiotic Escherichia coli (EGF-EcN) was created to promote beneficial actions of the EGF receptor, which is notably attenuated in patients with intestinal ulcerative injuries. Preventive and postinjury treatment with EGF-EcN alleviated intestinal ulcers and other readouts of disease severity in murine intestinal ulcer models. EGF-EcN administration promoted the restitutive recovery of damaged epithelial layers, particularly via upward expansion of highly proliferating progenitor cells from the lower crypts. Along with the epithelial barrier benefit, EGF-EcN improved goblet cell-associated mucosal integrity, which controls the access of luminal microbiota to the underlying host tissues. Despite concern about the oncogenic action of EGF, EGF-EcN did not aggravate colitis-associated colon cancer; instead, it alleviated protumorigenic activities and improved barrier integrity in the lesions. All findings indicate that probiotic bacteria-based precision delivery of human EGF is a promising mucosal intervention against gastrointestinal ulcers and malignant distress through crypt-derived barrier restoration.
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Affiliation(s)
- Mira Yu
- Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Biomedical Research Institute, Pusan National University, Yangsan, South Korea
| | - Juil Kim
- Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Biomedical Research Institute, Pusan National University, Yangsan, South Korea
| | | | - Yuseok Moon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Biomedical Sciences, Biomedical Research Institute, Pusan National University, Yangsan, South Korea.,College of Information and BioMedical Engineering, Pusan National University, Yangsan, South Korea
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9
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Shi Y, Zhu H, Li R, Wang D, Zhu Y, Hu L, Chen W. Effect of polysaccharides from Sijunzi decoction on Ca 2+ related regulators during intestinal mucosal restitution. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 58:152880. [PMID: 30901661 DOI: 10.1016/j.phymed.2019.152880] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 02/27/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Sijunzi decoction, a representative Chinese herbal formula of reinforcing Qi strengthening spleen, has been widely used for treating patients with gastrointestinal diseases and spleen-deficiency syndrome, however, the exact effects and mechanisms are remained unclear. HYPOTHESIS/PURPOSE The migration of intestinal epithelial (IEC-6) cells has been demonstrated to be one of the major repair modalities during the healing of mucosal wounds. Ca2+ is the key factor in regulating cell migration. Thus, this study aimed to elucidate the potential effects and mechanisms of polysaccharides (SJZDP) extracted from Sijunzi decoction in intestinal mucosal restitution. METHOD Cell migration was detected by scratch method with micropipette tip. Western blotting was adopted to evaluate the expression of STIM1 and STIM2 proteins. Immunofluorescence was carried out to assess the translocation of STIM1 protein. Immunoprecipitation was used to determine the levels of STIM1/TRPC1 and STIM1/STIM2 complexes. A indomethacin-induced intestinal mucosal injury rat model was applied. The content of polyamines in intestinal mucosa was detected by high-performance liquid chromatography. The morphological changes in the intestinal mucosa were observed at the end of animal experiment. RESULTS The results showed that treatment with SJZDP significantly promoted cell migration, enhanced the level of STIM1 protein and STIM1/TRPC1 complexes, reduced the level of STIM2 protein and STIM1/STIM2 complexes. Further more, SJZDP exposure promoted the translocation of STIM1 to the plasma membrane. In vivo experiment results, the administration of SJZDP effectively reduced intestinal mucosal injury. CONCLUSION These results revealed that SJZDP promotes intestinal epithelial restitution after wounding, presumably by regulating cellular levels of STIM1 and STIM2 differentially, stimulating the translocation of STIM1, and inducing STIM1/TRPC1 association as well as decreasing the level of STIM1/STIM2.
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Affiliation(s)
- Yuxia Shi
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China
| | - Huibin Zhu
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China
| | - Ruliu Li
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China.
| | - Dongxu Wang
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China
| | - Yiping Zhu
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China
| | - Ling Hu
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China
| | - Weiwen Chen
- Pi-wei Institute, Guangzhou University of Chinese Medicine, 12 Jichang road, Guangzhou 510405, PR China
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10
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The MIC-1/GDF15-GFRAL Pathway in Energy Homeostasis: Implications for Obesity, Cachexia, and Other Associated Diseases. Cell Metab 2018; 28:353-368. [PMID: 30184485 DOI: 10.1016/j.cmet.2018.07.018] [Citation(s) in RCA: 231] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
MIC-1/GDF15 is a stress response cytokine and a distant member of the transforming growth factor beta (TGFb) superfamily, with no close relatives. It acts via a recently identified receptor called glial-derived neurotrophic factor (GDNF) receptor alpha-like (GFRAL), which is a distant orphan member of the GDNF receptor family that signals through the tyrosine kinase receptor Ret. MIC-1/GDF15 expression and serum levels rise in response to many stimuli that initiate cell stress and as part of a wide variety of disease processes, most prominently cancer and cardiovascular disease. The best documented actions of MIC-1/GDF15 are on regulation of energy homeostasis. When MIC-1/GDF15 serum levels are substantially elevated in diseases like cancer, it subverts a physiological pathway of appetite regulation to induce an anorexia/cachexia syndrome initiated by its actions on hindbrain neurons. These effects make it a potential target for the treatment of both obesity and anorexia/cachexia syndromes, disorders lacking any highly effective, readily accessible therapies.
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Lin L, Jiang W, Xu L, Liu L, Song S, Kuang H. Development of IC-ELISA and immunochromatographic strip assay for the detection of flunixin meglumine in milk. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1364710] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Lu Lin
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
| | - Wei Jiang
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
| | - Liguang Xu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
| | - Liqiang Liu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
| | - Shanshan Song
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, JiangSu, People’s Republic of China
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NSAID-activated gene 1 and its implications for mucosal integrity and intervention beyond NSAIDs. Pharmacol Res 2017; 121:122-128. [DOI: 10.1016/j.phrs.2017.04.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/21/2017] [Accepted: 04/19/2017] [Indexed: 12/15/2022]
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HuR Enhances Early Restitution of the Intestinal Epithelium by Increasing Cdc42 Translation. Mol Cell Biol 2017; 37:MCB.00574-16. [PMID: 28031329 DOI: 10.1128/mcb.00574-16] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 12/21/2016] [Indexed: 12/27/2022] Open
Abstract
The mammalian intestinal mucosa exhibits a spectrum of responses after acute injury and repairs itself rapidly to restore the epithelial integrity. The RNA-binding protein HuR regulates the stability and translation of target mRNAs and is involved in many aspects of gut epithelium homeostasis, but its exact role in the regulation of mucosal repair after injury remains unknown. We show here that HuR is essential for early intestinal epithelial restitution by increasing the expression of cell division control protein 42 (Cdc42) at the posttranscriptional level. HuR bound to the Cdc42 mRNA via its 3' untranslated region, and this association specifically enhanced Cdc42 translation without an effect on the Cdc42 mRNA level. Intestinal epithelium-specific HuR knockout not only decreased Cdc42 levels in mucosal tissues, but it also inhibited repair of damaged mucosa induced by mesenteric ischemia/reperfusion in the small intestine and by dextran sulfate sodium in the colon. Furthermore, Cdc42 silencing prevented HuR-mediated stimulation of cell migration over the wounded area by altering the subcellular distribution of F-actin. These results indicate that HuR promotes early intestinal mucosal repair after injury by increasing Cdc42 translation and demonstrate the importance of HuR deficiency in the pathogenesis of delayed mucosal healing in certain pathological conditions.
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