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#33673623   2021/02/27 To Up

Quantitative Proteomics Reveals Changes Induced by TIMP-3 on Cell Membrane Composition and Novel Metalloprotease Substrates.

Ectodomain shedding is a key mechanism of several biological processes, including cell-communication. Disintegrin and metalloproteinases (ADAMs), together with the membrane-type matrix metalloproteinases, play a pivotal role in shedding transmembrane proteins. Aberrant shedding is associated to several pathological conditions, including arthritis. Tissue inhibitor of metalloproteases 3 (TIMP-3), an endogenous inhibitor of ADAMs and matrix metalloproteases (MMPs), has been proven to be beneficial in such diseases. Thus, strategies to increase TIMP-3 bioavailability in the tissue have been sought for development of therapeutics. Nevertheless, high levels of TIMP-3 may lead to mechanism-based side-effects, as its overall effects on cell behavior are still unknown. In this study, we used a high-resolution mass-spectrometry-based workflow to analyze alterations induced by sustained expression of TIMP-3 in the cell surfaceome. In agreement with its multifunctional properties, TIMP-3 induced changes on the protein composition of the cell surface. We found that TIMP-3 had differential effects on metalloproteinase substrates, with several that accumulated in TIMP-3-overexpressing cells. In addition, our study identified potentially novel ADAM substrates, including ADAM15, whose levels at the cell surface are regulated by the inhibitor. In conclusion, our study reveals that high levels of TIMP-3 induce modifications in the cell surfaceome and identifies molecular pathways that can be deregulated via TIMP-3-based therapies.
Anna Paola Carreca, Veronica Maria Pravatà, Danilo D'Apolito, Simone Bonelli, Matteo Calligaris, Elisa Monaca, Stephan A Müller, Stefan F Lichtenthaler, Simone Dario Scilabra

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#33381768   // To Up

Interleukin 13 (IL-13)-regulated expression of the chondroprotective metalloproteinase ADAM15 is reduced in aging cartilage.

The adamalysin metalloproteinase 15 (ADAM15) has been shown to protect against development of osteoarthritis in mice. Here, we have investigated factors that control ADAM15 levels in cartilage.
C Y Yang, A Chanalaris, S Bonelli, O McClurg, G Lorenzatti Hiles, A L Cates, J Miotla Zarebska, T L Vincent, M L Day, S A Müller, S F Lichtenthaler, H Nagase, S D Scilabra, L Troeberg

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#33208450   2021/01/28 To Up

ADAM15 Participates in Tick-Borne Encephalitis Virus Replication.

Tick-borne encephalitis virus (TBEV), a major tick-borne viral pathogen of humans, is known to cause neurological diseases such as meningitis, encephalitis, and meningoencephalitis. However, the life cycle and pathogenesis of TBEV are not well understood. Here, we show that the knockdown or knockout of ADAM15 (a disintegrin and metalloproteinase 15), a host protein involved in neuroblastoma diseases, leads to TBEV replication and assembly defects. We characterized the disintegrin domain in ADAM15 and found that the ADAM15 subcellular localization was changed following TBEV infection. RNA interference (RNAi) screen analysis confirmed ADAM's nonredundant functions and identified a specific role for ADAM15 in TBEV infection. An RNA-sequencing analysis was also conducted to understand the causal link between TBEV infection and the cellular endomembrane network, namely, the generation of replication organelles promoting viral genome replication and virus production. Our data demonstrated that TBEV infection changes ADAM15 cellular localization, which contributes to membrane reorganization and viral replication. Tick populations are increasing, and their geographic ranges are expanding. Increases in tick-borne disease prevalence and transmission are important public health issues. Tick-borne encephalitis virus (TBEV) often results in meningitis, encephalitis, and meningoencephalitis. TBEV causes clinical disease in more than 20,000 humans in Europe and Asia per year. An increased incidence of TBE has been noted in Europe and Asia, as a consequence of climate and socioeconomic changes. The need to investigate the mechanism(s) of interaction between the virus and the host factors is apparent, as it will help us to understand the roles of host factors in the life cycle of TBEV. The significance of our research is in identifying the ADAM15 for TBEV replication, which will greatly enhance our understanding of TBEV life cycle and highlight a target for pharmaceutical consideration.
Qi Yang, Rongjuan Pei, Yun Wang, Yuan Zhou, Min Yang, Xinwen Chen, Jizheng Chen

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#32936915   // To Up

Genome-Wide Association for HbA1c in Malay Identified Deletion on SLC4A1 that Influences HbA1c Independent of Glycemia.

Glycated hemoglobin A1c (HbA1c) level is used to screen and diagnose diabetes. Genetic determinants of HbA1c can vary across populations and many of the genetic variants influencing HbA1c level were specific to populations.
Jin-Fang Chai, Shih-Ling Kao, Chaolong Wang, Victor Jun-Yu Lim, Ing Wei Khor, Jinzhuang Dou, Anna I Podgornaia, Sonia Chothani, Ching-Yu Cheng, Charumathi Sabanayagam, Tien-Yin Wong, Rob M van Dam, Jianjun Liu, Dermot F Reilly, Andrew D Paterson, Xueling Sim

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#32799658   2020/08/17 To Up

targets gene networks that promote browning of human and mouse adipocytes.

MicroRNA-30a (miR-30a) impacts adipocyte function, and its expression in white adipose tissue (WAT) correlates with insulin sensitivity in obesity. Bioinformatic analysis demonstrates that expression contributes to 2% of all miRNA expression in human tissues. However, molecular mechanisms of function in fat cells remain unclear. Here, we expanded our understanding of how expression contributes to antidiabetic peroxisome proliferator-activated receptor-γ (PPARγ) agonist activity and metabolic functions in adipocytes. We found that WAT isolated from diabetic patients shows reduced levels and diminished expression of the canonical PPARγ target genes and relative to lean counterparts. In human adipocytes, required PPARγ for maximal expression, and the PPARγ agonist rosiglitazone robustly induced but not other miR-30 family members. Transcriptional activity studies in human adipocytes also revealed that ectopic expression of enhanced the activity of rosiglitazone coupled with higher expression of fatty acid and glucose metabolism markers. Diabetic mice that overexpress ectopic in subcutaneous WAT display durable reductions in serum glucose and insulin levels for more than 30 days. In agreement with our in vitro findings, RNA-seq coupled with Gene Set Enrichment Analysis (GSEA) suggested that enabled activation of the beige fat program in vivo, as evidenced by enhanced mitochondrial biogenesis and induction of UCP1 expression. Metabolomic and gene expression profiling established that the long-term effects of ectopic expression enable accelerated glucose metabolism coupled with subcutaneous WAT hyperplasia. Together, we establish a putative role of in mediating PPARγ activity and advancing metabolic programs of white to beige fat conversion.
Pradip K Saha, Mark P Hamilton, Kimal Rajapakshe, Vasanta Putluri, Jessica B Felix, Peter Masschelin, Aaron R Cox, Mandeep Bajaj, Nagireddy Putluri, Cristian Coarfa, Sean M Hartig

1717 related Products with: targets gene networks that promote browning of human and mouse adipocytes.

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#32690871   2020/07/20 To Up

A disintegrin and metalloproteinase domain-15 deficiency leads to exaggerated cigarette smoke-induced chronic obstructive pulmonary disease (COPD)-like disease in mice.

A disintegrin and metalloproteinase domain-15 (ADAM15) is expressed by cells implicated in the pathogenesis of chronic obstructive pulmonary disease (COPD), but its contributions to COPD are unknown. To address this gap, ADAM15 levels were measured in samples from cigarette smoke (CS)-versus air-exposed wild-type (WT) mice. CS-induced COPD-like disease was compared in CS-exposed WT, Adam15, and Adam15 bone marrow chimeric mice. CS exposure increased Adam15 expression in lung macrophages and CD8 T cells and to a lesser extent in airway epithelial cells in WT mice. CS-exposed Adam15 mice had greater emphysema, small airway fibrosis, and lung inflammation (macrophages and CD8 T cells) than WT mice. Adam15 bone marrow chimera studies revealed that Adam15 deficiency in leukocytes led to exaggerated pulmonary inflammation and COPD-like disease in mice. Adam15 deficiency in CD8 T cells was required for the exaggerated pulmonary inflammation and COPD-like disease in CS-exposed Adam15 mice (as assessed by genetically deleting CD8 T cells in Adam15 mice). Adam15 deficiency increased pulmonary inflammation by rendering CD8 T cells and macrophages resistant to CS-induced activation of the mitochondrial apoptosis pathway by preserving mTOR signaling and intracellular Mcl-1 levels in these cells. These results strongly link ADAM15 deficiency to the pathogenesis of COPD.
Xiaoyun Wang, Joselyn Rojas-Quintero, Duo Zhang, Takahiro Nakajima, Katherine H Walker, Hong Yong Peh, Yuhong Li, Quynh-Anh Fucci, Yohannes Tesfaigzi, Caroline A Owen

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#32677970   2020/07/16 To Up

ADAM15 expression is increased in lung CD8 T cells, macrophages, and bronchial epithelial cells in patients with COPD and is inversely related to airflow obstruction.

A disintegrin and metalloproteinase domain-15 (ADAM15) is expressed by activated leukocytes, and fibroblasts in vitro. Whether ADAM15 expression is increased in the lungs of COPD patients is not known.
Xiaoyun Wang, Duo Zhang, Andrew Higham, Sophie Wolosianka, Xiaoyan Gai, Lu Zhou, Hans Petersen, Victor Pinto-Plata, Miguel Divo, Edwin K Silverman, Bartolome Celli, Dave Singh, Yongchang Sun, Caroline A Owen

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#32603359   2020/06/30 To Up

Age-of-onset information helps identify 76 genetic variants associated with allergic disease.

Risk factors that contribute to inter-individual differences in the age-of-onset of allergic diseases are poorly understood. The aim of this study was to identify genetic risk variants associated with the age at which symptoms of allergic disease first develop, considering information from asthma, hay fever and eczema. Self-reported age-of-onset information was available for 117,130 genotyped individuals of European ancestry from the UK Biobank study. For each individual, we identified the earliest age at which asthma, hay fever and/or eczema was first diagnosed and performed a genome-wide association study (GWAS) of this combined age-of-onset phenotype. We identified 50 variants with a significant independent association (P<3x10-8) with age-of-onset. Forty-five variants had comparable effects on the onset of the three individual diseases and 38 were also associated with allergic disease case-control status in an independent study (n = 222,484). We observed a strong negative genetic correlation between age-of-onset and case-control status of allergic disease (rg = -0.63, P = 4.5x10-61), indicating that cases with early disease onset have a greater burden of allergy risk alleles than those with late disease onset. Subsequently, a multivariate GWAS of age-of-onset and case-control status identified a further 26 associations that were missed by the univariate analyses of age-of-onset or case-control status only. Collectively, of the 76 variants identified, 18 represent novel associations for allergic disease. We identified 81 likely target genes of the 76 associated variants based on information from expression quantitative trait loci (eQTL) and non-synonymous variants, of which we highlight ADAM15, FOSL2, TRIM8, BMPR2, CD200R1, PRKCQ, NOD2, SMAD4, ABCA7 and UBE2L3. Our results support the notion that early and late onset allergic disease have partly distinct genetic architectures, potentially explaining known differences in pathophysiology between individuals.
Manuel A R Ferreira, Judith M Vonk, Hansjörg Baurecht, Ingo Marenholz, Chao Tian, Joshua D Hoffman, Quinta Helmer, Annika Tillander, Vilhelmina Ullemar, Yi Lu, Sarah Grosche, Franz Rüschendorf, Raquel Granell, Ben M Brumpton, Lars G Fritsche, Laxmi Bhatta, Maiken E Gabrielsen, Jonas B Nielsen, Wei Zhou, Kristian Hveem, Arnulf Langhammer, Oddgeir L Holmen, Mari Løset, Gonçalo R Abecasis, Cristen J Willer, Nima C Emami, Taylor B Cavazos, John S Witte, Agnieszka Szwajda, , , David A Hinds, Norbert Hübner, Stephan Weidinger, Patrik Ke Magnusson, Eric Jorgenson, Robert Karlsson, Lavinia Paternoster, Dorret I Boomsma, Catarina Almqvist, Young-Ae Lee, Gerard H Koppelman

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#32547057   2020/05/14 To Up

The microRNA miR-3174 Suppresses the Expression of ADAM15 and Inhibits the Proliferation of Patient-Derived Bladder Cancer Cells.

Bladder cancer is a major urinary system cancer, and its mechanism of action regarding its progression is unclear. The goal of this study was to examine the expression of ADAM panel in the clinical specimens of bladder cancer and to investigate the role of miR-3174/ADAM15 (a disintegrin and metalloprotease 15) axis in the regulation of bladder cancer cell proliferation.
Chunhu Yu, Ying Wang, Tiejun Liu, Kefu Sha, Zhaoxia Song, Mingjun Zhao, Xiaolin Wang

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#32522006   2020/06/11 To Up

ADAM (a Disintegrin and Metalloproteinase) 15 Deficiency Exacerbates Ang II (Angiotensin II)-Induced Aortic Remodeling Leading to Abdominal Aortic Aneurysm.

ADAM (a disintegrin and metalloproteinase) 15-a membrane-bound metalloprotease from the ADAM (disintegrin and metalloproteinase) family-has been linked to endothelial permeability, inflammation, and metastasis. However, its function in aortic aneurysm has not been explored. We aimed to determine the function of ADAM15 in the pathogenesis of aortic remodeling and aneurysm formation. Approach and Results: Male -deficient and WT (wild type) mice (10 weeks old), on standard laboratory diet, received Ang II (angiotensin II; 1.5 mg/kg per day) or saline (Alzet pump) for 2 or 4 weeks. Ang II increased ADAM15 in WT aorta, while -deficiency resulted in abdominal aortic aneurysm characterized by loss of medial smooth muscle cells (SMCs), elastin fragmentation, inflammation, but unaltered Ang II-mediated hypertension. In the abdominal aortic tissue and primary aortic SMCs culture, deficiency decreased SMC proliferation, increased apoptosis, and reduced contractile properties along with F-actin depolymerization to G-actin. Ang II triggered a markedly greater increase in THBS (thrombospondin) 1 in -deficient aorta, primarily the medial layer in vivo, and in aortic SMC in vitro; increased SSH1 (slingshot homolog 1) phosphatase activity and cofilin dephosphorylation that promoted F-actin depolymerization and G-actin accumulation. rhTHBS1 (recombinant THBS1) alone was sufficient to activate the cofilin pathway, increase G-actin, and induce apoptosis of aortic SMCs, confirming the key role of THBS1 in this process. Further, in human abdominal aortic aneurysm specimens, decreased ADAM15 was associated with increased THBS1 levels and loss of medial SMCs.
Sayantan Jana, Michael Chute, Mei Hu, Gerrit Winkelaar, Caroline A Owen, Gavin Y Oudit, Zamaneh Kassiri

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