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Hong H, Xu HX, Meng JZ, Zhu BM. Electroacupuncture altered expression of microRNAs in Stat5 knockout obese mice. Acupunct Med 2021; 40:249-257. [PMID: 34892984 DOI: 10.1177/09645284211056345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Increasing evidence shows that miRNAs contribute to the establishment and development of obesity by affecting many biological and pathological processes, such as adipocyte differentiation, hepatic lipid metabolism, insulin resistance, and neurological regulation of obesity. As a clinical intervention approach, acupuncture has been shown to be effective in the treatment of obesity and other metabolic diseases. Our previous whole genome study in central nervous system (CNS)-specific Stat5 knockout (NKO) obese mice found that electroacupuncture (EA) could reduce body weight and promote white browning. OBJECTIVE To clarify the effect of EA on miRNAs and understand how it regulates gene expression. METHODS Twelve-week-old male Stat5NKO mice with body weight 20% greater than that of Stat5fl/fl (control) mice were divided into a Stat5NKO (model) group and EA-treated Stat5NKO + EA group. A cohort of Stat5fl/fl mice of the same age were included as the control group. EA was administered under isoflurane anesthesia at unilateral ST36 and ST44 daily (left and right sides were treated every other day), 6 times per week for a total of 4 weeks. The miRNA profile was generated and miRNA regulatory networks were analyzed in the Stat5 nestin-cre mice before and after EA treatment. Autophagy-related proteins in adipocytes were detected after over-expression of miR27a. RESULTS EA altered abnormal miRNA expression, including miRNA27a expression, and reduced the autophagy-related proteins ATG5 and ATG12. CONCLUSION We found that EA could regulate miRNA27a-mediated autophagy-related proteins and promote white fat browning, which may contribute to weight loss. To our knowledge, this is the first report of miRNAs potentially driving the effect of EA on white fat browning through the autophagy process.
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Affiliation(s)
- Hao Hong
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Hou-Xi Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jian-Zhong Meng
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Bing-Mei Zhu
- Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
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Monogenic autoimmunity and infectious diseases: the double-edged sword of immune dysregulation. Curr Opin Immunol 2021; 72:230-238. [PMID: 34265589 PMCID: PMC8452259 DOI: 10.1016/j.coi.2021.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 06/16/2021] [Accepted: 06/18/2021] [Indexed: 01/10/2023]
Abstract
The study of monogenic autoimmune diseases has provided key insights into molecular mechanisms involved in development of autoimmunity and immune tolerance. It has also become clear that such inborn errors of immunity (IEIs) frequently present clinically not only with autoimmune diseases, but also frequently have increased susceptibility to infection. The genes associated with monogenic autoimmunity influence diverse functional pathways, and the resulting immune dysregulation also impacts the complex and coordinated immune response to pathogens, for example type I interferon and cytokine signaling, the complement pathway and proper differentiation of the immune response. The SARS-CoV-2 pandemic has highlighted how monogenic autoimmunity can increase risk for serious infection with the discovery of severe disease in patients with pre-existing antibodies to Type I IFNs. This review discusses recent insight into the relationship between monogenic autoimmunity and infectious diseases.
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Bonella F, Campo I, Zorzetto M, Boerner E, Ohshimo S, Theegarten D, Taube C, Costabel U. Potential clinical utility of MUC5B und TOLLIP single nucleotide polymorphisms (SNPs) in the management of patients with IPF. Orphanet J Rare Dis 2021; 16:111. [PMID: 33639995 PMCID: PMC7913255 DOI: 10.1186/s13023-021-01750-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/16/2021] [Indexed: 11/26/2022] Open
Abstract
Background Genetic variants of TOLLIP and MUC5B, both on chromosome 11, have been reported to be associated with the development and/or prognosis of idiopathic pulmonary fibrosis (IPF). This retrospective study was conducted to investigate the association of MUC5B and TOLLIP SNPs with disease outcome in IPF. 62 IPF patients and 50 healthy controls (HC) from our Institution were genotyped for SNPs within MUC5B (rs35705950) and TOLLIP (rs3750920 and rs5743890). Correlation of SNPs genotypes with survival, acute exacerbation (AE) or disease progression (defined as a decline of ≥ 5% in FVC and or ≥ 10% in DLco in one year) was investigated. Results The MUC5B rs35705950 minor allele (T) was more frequent in IPF subjects than in HC (35% vs 9% p < 0.001). TOLLIP SNPs alleles and genotype distribution did not differ between IPF and HC and did not vary according to gender, age, BMI and lung functional impairment at baseline. The minor allele (C) in TOLLIP rs5743890 was associated with worse survival and with disease progression in all performed analyses. The MUC5B rs35705950 or the TOLLIP rs3750920 minor allele, were not associated with disease progression or AE.
Conclusion We confirm that the minor allele of MUC5B rs35705950 is associated with IPF. The minor allele of TOLLIP rs5743890 appears to be a predictor of worse survival and more rapid disease progression, therefore being of potential utility to stratify IPF patients at baseline.
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Affiliation(s)
- Francesco Bonella
- Center for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik University Hospital, University of Duisburg-Essen, 45239, Essen, Germany.
| | - Ilaria Campo
- SC Pneumologia - Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Michele Zorzetto
- Clinical Chemistry Laboratory, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Eda Boerner
- Center for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik University Hospital, University of Duisburg-Essen, 45239, Essen, Germany
| | - Shinichiro Ohshimo
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Dirk Theegarten
- Institute of Pathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Christian Taube
- Center for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik University Hospital, University of Duisburg-Essen, 45239, Essen, Germany
| | - Ulrich Costabel
- Center for Interstitial and Rare Lung Diseases, Pneumology Department, Ruhrlandklinik University Hospital, University of Duisburg-Essen, 45239, Essen, Germany
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Doud EH, Shetty T, Abt M, Mosley AL, Corson TW, Mehta A, Yeh ES. NF-κB Signaling Is Regulated by Fucosylation in Metastatic Breast Cancer Cells. Biomedicines 2020; 8:biomedicines8120600. [PMID: 33322811 PMCID: PMC7763959 DOI: 10.3390/biomedicines8120600] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/30/2020] [Accepted: 12/10/2020] [Indexed: 02/03/2023] Open
Abstract
A growing body of evidence indicates that the levels of fucosylation correlate with breast cancer progression and contribute to metastatic disease. However, very little is known about the signaling and functional outcomes that are driven by fucosylation. We performed a global proteomic analysis of 4T1 metastatic mammary tumor cells in the presence and absence of a fucosylation inhibitor, 2-fluorofucose (2FF). Of significant interest, pathway analysis based on our results revealed a reduction in the NF-κB and TNF signaling pathways, which regulate the inflammatory response. NF-κB is a transcription factor that is pro-tumorigenic and a prime target in human cancer. We validated our results, confirming that treatment of 4T1 cells with 2FF led to a decrease in NF-κB activity through increased IκBα. Based on these observations, we conclude that fucosylation is an important post-translational modification that governs breast cancer cell signaling.
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Affiliation(s)
- Emma H. Doud
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (E.H.D.); (A.L.M.); (T.W.C.)
| | - Trupti Shetty
- Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Melissa Abt
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Amber L. Mosley
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (E.H.D.); (A.L.M.); (T.W.C.)
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Timothy W. Corson
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA; (E.H.D.); (A.L.M.); (T.W.C.)
- Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Anand Mehta
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Medical University of South Carolina, Charleston, SC 29425, USA;
| | - Elizabeth S. Yeh
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
- Correspondence:
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Abdelzaher WY, Rofaeil RR, Ali DME, Attya ME. Protective effect of dipeptidyl peptidase-4 inhibitors in testicular torsion/detorsion in rats: a possible role of HIF-1α and nitric oxide. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2019; 393:603-614. [PMID: 31773182 DOI: 10.1007/s00210-019-01765-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 11/08/2019] [Indexed: 11/30/2022]
Abstract
Spermatic cord torsion is a serious and common urologic emergency. It requires early diagnosis for prevention of subfertility and testicular necrosis. Vildagliptin and sitagliptin are anti-diabetic drugs of the dipeptidyl peptidase-4 (DPP-4) inhibitors that have a protective role against cerebral ischemic stroke and cardiac ischemia reperfusion. This study aimed to investigate the role and mechanism of action of vildagliptin and sitagliptin in a model of testicular ischemia/reperfusion injury by testicular torsion/detorsion (T/D). Testicular T/D was done and vildagliptin and sitagliptin were administered either alone or in combination with nitric oxide synthase (NOS) inhibitor. Serum total cholesterol and testosterone were measured, while in testicular tissue testosterone, malondialdehyde (MDA) level, total antioxidant capacity (TAC), nitric oxide level, caspase-3, superoxide dismutase (SOD), hypoxia-inducible factor-1α (HIF-1α), tumor necrosis factor-α (TNF-α) and endothelial NOS (eNOS), and inducible NOS (iNOS) and neuronal NOS (nNOS) were measured. Histopathology of testicular tissue was done. Vildagliptin and sitagliptin increased serum testosterone, expression, and activity of SOD and testicular TAC. It also reduced total serum cholesterol, testicular MDA, caspase-3, HIF-1α, TNF-α, and expression of eNOS, iNOS, and nNOS. Vildagliptin and sitagliptin also improved histopathological picture of testicular tissue. NOS inhibitor produced similar result to DDP-4 inhibitors; however, its co-administration augmented the effect of vildagliptin and sitagliptin on these parameters. DPP-4 inhibitors, vildagliptin, and sitagliptin were protective against testicular T/D-induced injury mostly by anti-oxidative stress, and anti-apoptotic and anti-inflammatory actions that was augmented by NOS inhibition with a possible role for HIF-1α expression.
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Affiliation(s)
| | - Remon Roshdy Rofaeil
- Department of Pharmacology, Minia University, Minia, 61111, Egypt. .,Department of Pharmacology, Deraya University, New Minia City, Egypt.
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Zhang Y, Lee C, Geng S, Li L. Enhanced tumor immune surveillance through neutrophil reprogramming due to Tollip deficiency. JCI Insight 2019; 4:122939. [PMID: 30674719 DOI: 10.1172/jci.insight.122939] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 12/13/2018] [Indexed: 12/19/2022] Open
Abstract
Although the importance of the tumor immune environment for the modulation of tumorigenesis and tumor regression is becoming increasingly clear, most of the research related to tumor-immune therapies has focused on adaptive immune cells, while the role and regulation of innate leukocytes such as neutrophils remains controversial and less defined. Here we observed that the selective deletion of Tollip, a key innate immune-cell modulator, led to enhanced tumor immune surveillance in a chemically induced colorectal cancer model. Tollip-deficient neutrophils significantly elevated T cell activation through enhanced expression of the costimulatory molecule CD80, and reduced expression of the inhibitory molecule PD-L1. Mechanistically, Tollip deficiency increased STAT5 and reduced STAT1, the transcription factors responsible for the expression of CD80 and PD-L1, respectively. Through adoptive transfer, we demonstrate that Tollip-deficient neutrophils, but not Tollip-deficient monocytes, are sufficient to drive enhanced tumor immune surveillance and reduced colorectal cancer burden in vivo. Our data reveal a strategy for the reprogramming of neutrophil functions conducive for the enhancement of the antitumor immune environment.
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Affiliation(s)
- Yao Zhang
- Department of Biological Sciences and
| | - Christina Lee
- Department of Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, Virginia, USA
| | - Shuo Geng
- Department of Biological Sciences and
| | - Liwu Li
- Department of Biological Sciences and
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