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Cheng Y, Zhai Y, Yuan Y, Wang Q, Li S, Sun H. The Contributions of Thrombospondin-1 to Epilepsy Formation. Neurosci Bull 2024; 40:658-672. [PMID: 38528256 PMCID: PMC11127911 DOI: 10.1007/s12264-024-01194-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 01/27/2024] [Indexed: 03/27/2024] Open
Abstract
Epilepsy is a neural network disorder caused by uncontrolled neuronal hyperexcitability induced by an imbalance between excitatory and inhibitory networks. Abnormal synaptogenesis plays a vital role in the formation of overexcited networks. Recent evidence has confirmed that thrombospondin-1 (TSP-1), mainly secreted by astrocytes, is a critical cytokine that regulates synaptogenesis during epileptogenesis. Furthermore, numerous studies have reported that TSP-1 is also involved in other processes, such as angiogenesis, neuroinflammation, and regulation of Ca2+ homeostasis, which are closely associated with the occurrence and development of epilepsy. In this review, we summarize the potential contributions of TSP-1 to epilepsy development.
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Affiliation(s)
- Yao Cheng
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Yujie Zhai
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Yi Yuan
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Qiaoyun Wang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, 264003, China
| | - Shucui Li
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, 264003, China.
| | - Hongliu Sun
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, 264003, China.
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2
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Ma X, Xu L, Gong S, Wu N, Guo J, Feng X, Zhao M, Qiu S, Sun M, Zhang C, Zhang X, Ren Z, Zhang P. hsa_circ_0007919 promotes pancreatic cancer metastasis by modulating Sp1-mediated THBS1 transcription. FASEB J 2024; 38:e23591. [PMID: 38572579 DOI: 10.1096/fj.202302422rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 03/11/2024] [Accepted: 03/21/2024] [Indexed: 04/05/2024]
Abstract
CircRNAs are abnormally expressed in various cancers and play an important role in the occurrence and development of cancers. However, their biological functions and the underlying molecular mechanisms in pancreatic cancer (PC) metastasis are incompletely understood. Differentially expressed circRNAs were identified by second-generation transcriptome sequencing in three pairs of PC tissues and adjacent tissues. The expression and prognostic significance of hsa_circ_0007919 were evaluated by qRT-PCR and Kaplan-Meier survival curves. Gain- and loss-of-function assays were conducted to detect the role of hsa_circ_0007919 in PC metastasis in vitro. A lung metastasis model and IHC experiments were conducted to confirm the effects of hsa_circ_0007919 on tumor metastasis in vivo. Mechanistically, RNA immunoprecipitation and chromatin immunoprecipitation assays were conducted to explore the interplay among hsa_circ_0007919, Sp1, and the THBS1 promoter. hsa_circ_0007919 was significantly upregulated in PC tissues and cells and was correlated with lymph node metastasis, TNM stage, and poor prognosis. Knockdown of hsa_circ_0007919 significantly suppressed the migration and invasion of PC cells in vitro and inhibited tumor metastasis in vivo. However, overexpression of hsa_circ_0007919 exerted the opposite effects. Mechanistically, hsa_circ_0007919 could recruit the transcription factor Sp1 to inhibit THBS1 transcription, thereby facilitating PC metastasis. hsa_circ_0007919 can promote the metastasis of PC by inhibiting THBS1 expression. hsa_circ_0007919 may be a potential therapeutic target in PC.
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Affiliation(s)
- Xiao Ma
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
- Department of General Surgery, Xuzhou First People's Hospital, Xuzhou, China
| | - Lei Xu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shuai Gong
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Nai Wu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jiaxuan Guo
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Xinyu Feng
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Mengmeng Zhao
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Sancheng Qiu
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Ming Sun
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
- Institute of Digestive Diseases, Xuzhou Medical University, Xuzhou, China
| | - Chong Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xiuzhong Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zeqiang Ren
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Pengbo Zhang
- Department of General Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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3
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Pan H, Lu X, Ye D, Feng Y, Wan J, Ye J. The molecular mechanism of thrombospondin family members in cardiovascular diseases. Front Cardiovasc Med 2024; 11:1337586. [PMID: 38516004 PMCID: PMC10954798 DOI: 10.3389/fcvm.2024.1337586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 02/14/2024] [Indexed: 03/23/2024] Open
Abstract
Cardiovascular diseases have been identified as vital factors in global morbidity and mortality in recent years. The available evidence suggests that various cytokines and pathological proteins participate in these complicated and changeable diseases. The thrombospondin (TSP) family is a series of conserved, multidomain calcium-binding glycoproteins that cause cell-matrix and cell-cell effects via interactions with other extracellular matrix components and cell surface receptors. The TSP family has five members that can be divided into two groups (Group A and Group B) based on their different structures. TSP-1, TSP-2, and TSP-4 are the most studied proteins. Among recent studies and findings, we investigated the functions of several family members, especially TSP-5. We review the basic concepts of TSPs and summarize the relevant molecular mechanisms and cell interactions in the cardiovascular system. Targeting TSPs in CVD and other diseases has a remarkable therapeutic benefit.
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Affiliation(s)
- Heng Pan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Xiyi Lu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Di Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yongqi Feng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Cardiovascular Research Institute, Wuhan University, Wuhan, China
- Hubei Key Laboratory of Cardiology, Wuhan, China
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4
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Alford AI, Hankenson KD. Thrombospondins modulate cell function and tissue structure in the skeleton. Semin Cell Dev Biol 2024; 155:58-65. [PMID: 37423854 PMCID: PMC11115190 DOI: 10.1016/j.semcdb.2023.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023]
Abstract
Thrombospondins (TSPs) belong to a functional class of ECM proteins called matricellular proteins that are not primarily structural, but instead influence cellular interactions within the local extracellular environment. The 3D arrangement of TSPs allow interactions with other ECM proteins, sequestered growth factors, and cell surface receptors. They are expressed in mesenchymal condensations and limb buds during skeletal development, but they are not required for patterning. Instead, when absent, there are alterations in musculoskeletal connective tissue ECM structure, organization, and function, as well as altered skeletal cell phenotypes. Both functional redundancies and unique contributions to musculoskeletal tissue structure and physiology are revealed in mouse models with compound TSP deletions. Crucial roles of individual TSPs are revealed during musculoskeletal injury and regeneration. The interaction of TSPs with mesenchymal stem cells (MSC), and their influence on cell fate, function, and ultimately, musculoskeletal phenotype, suggest that TSPs play integral, but as yet poorly understood roles in musculoskeletal health. Here, unique and overlapping contributions of trimeric TSP1/2 and pentameric TSP3/4/5 to musculoskeletal cell and matrix physiology are reviewed. Opportunities for new research are also noted.
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Affiliation(s)
- Andrea I Alford
- Department of Orthopaedic Surgery, University of Michigan School of Medicine, A. Alfred Taubman Biomedical Sciences Research Building, Ann Arbor, MI 48109, United States.
| | - Kurt D Hankenson
- Department of Orthopaedic Surgery, University of Michigan School of Medicine, A. Alfred Taubman Biomedical Sciences Research Building, Ann Arbor, MI 48109, United States
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5
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Tucker RP, Adams JC. Molecular evolution of the Thrombospondin superfamily. Semin Cell Dev Biol 2024; 155:12-21. [PMID: 37202276 DOI: 10.1016/j.semcdb.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 05/20/2023]
Abstract
Thrombospondins (TSPs) are multidomain, calcium-binding glycoproteins that have wide-ranging roles in vertebrates in cell interactions, extracellular matrix (ECM) organisation, angiogenesis, tissue remodelling, synaptogenesis, and also in musculoskeletal and cardiovascular functions. Land animals encode five TSPs, which assembly co-translationally either as trimers (subgroup A) or pentamers (subgroup B). The vast majority of research has focused on this canonical TSP family, which evolved through the whole-genome duplications that took place early in the vertebrate lineage. With benefit of the growth in genome- and transcriptome-predicted proteomes of a much wider range of animal species, examination of TSPs throughout metazoan phyla has revealed extensive conservation of subgroup B-type TSPs in invertebrates. In addition, these searches established that canonical TSPs are, in fact, one branch within a TSP superfamily that includes other clades designated mega-TSPs, sushi-TSPs and poriferan-TSPs. Despite the apparent simplicity of poriferans and cnidarians as organisms, these phyla encode a greater diversity of TSP superfamily members than vertebrates. We discuss here the molecular characteristics of the TSP superfamily members, current knowledge of their expression profiles and functions in invertebrates, and models for the evolution of this complex ECM superfamily.
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Affiliation(s)
- Richard P Tucker
- Department of Cell Biology and Human Anatomy, University of California at Davis, Davis, CA, 95616 USA
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Wawrzykowski J, Jamioł M, Kankofer M. A pilot study on the relationship between thrombospondin-1 (THBS1) and transforming growth factor beta1 (TGFβ1) in the bovine placenta during early mid-pregnancy as well as parturition with normally released and retained placenta. Mol Reprod Dev 2024; 91:e23710. [PMID: 37811864 DOI: 10.1002/mrd.23710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 09/13/2023] [Accepted: 09/21/2023] [Indexed: 10/10/2023]
Abstract
During pregnancy, it is necessary to create appropriate conditions for the development of the placenta and the fetus. However, during parturition, the placenta must be separated and subsequently removed as soon as possible to not expose the female to the possibility of infection. In this study, the relationship between thrombospondin-1 (THBS1) and transforming growth factor beta1 (TGFβ1) concentrations was described during bovine pregnancy (second, fourth, and sixth months; n = 3/each month), at normal parturition (NR) and parturition with fetal membrane retention (R). The presence of THBS1 and TGFβ1 was confirmed in bovine placental tissues of both maternal and fetal parts. Enzyme-linked immunosorbent assay showed statistically significant differences (p < 0.05) in THBS1 concentrations (pg/mg protein) between examined parturient samples (maternal part: 5.76 ± 1.61 in R vs. 2.26 ± 1.58 in NR; fetal part: 2.62 ± 1.94 in R vs. 1.70 ± 0.23 in NR). TGFβ1 concentrations (pg/mg protein) were significantly lower (p < 0.05) in the retained fetal membranes compared to the released fetal membranes in the maternal part of the placenta (26.22 ± 7.53 in NR vs. 17.80 ± 5.01 in R). The participation of THBS1 in the activation of TGFβ1 in parturient bovine placental tissues leading to the normal release of fetal membranes may be suggested.
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Affiliation(s)
- Jacek Wawrzykowski
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Life Science in Lublin, Lublin, Poland
| | - Monika Jamioł
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Life Science in Lublin, Lublin, Poland
| | - Marta Kankofer
- Department of Biochemistry, Faculty of Veterinary Medicine, University of Life Science in Lublin, Lublin, Poland
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7
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Zhou L, Chen J, Liu Q, Yang S, Xie W, Peng Y. Case Report: Whole-exome sequencing identified two novel COMP variants causing pseudoachondroplasia. Front Endocrinol (Lausanne) 2023; 14:1267946. [PMID: 38075060 PMCID: PMC10702128 DOI: 10.3389/fendo.2023.1267946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/27/2023] [Indexed: 12/18/2023] Open
Abstract
Pseudoachondroplasia (PSACH) is a rare, dominant genetic disorder affecting bone and cartilage development, characterized by short-limb short stature, brachydactyly, loose joints, joint stiffness, and pain. The disorder is caused by mutations in the COMP gene, which encodes a protein that plays a role in the formation of collagen fibers. In this study, we present the clinical and genetic characteristics of PSACH in two Chinese families. Whole-exome sequencing (WES) analysis revealed two novel missense variants in the COMP gene: NM_000095.3: c.1319G>T (p.G440V, maternal) and NM_000095.3: c.1304A>T (p.D435V, paternal-mosaic). Strikingly, both the G440V and D435V mutations were located in the same T3 repeat motif and exhibited the potential to form hydrogen bonds with each other. Upon further analysis using Missense3D and PyMOL, we ascertained that these mutations showed the propensity to disrupt the protein structure of COMP, thus hampering its functioning. Our findings expand the existing knowledge of the genetic etiology underlying PSACH. The identification of new variants in the COMP gene can broaden the range of mutations linked with the condition. This information can contribute to the diagnosis and genetic counseling of patients with PSACH.
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Affiliation(s)
- Lin Zhou
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Jing Chen
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Qian Liu
- Medical Department, Zhejiang Biosan Biochemical Technologies Co. Ltd, Hangzhou, Zhejiang, China
| | - Shuting Yang
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Wanqin Xie
- National Health Commission Key Laboratory of Birth Defects for Research and Prevention, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
| | - Ying Peng
- Department of Medical Genetics, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, Hunan, China
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Miura K, Katsuki R, Yoshida S, Ohta R, Tamura T. Identification of EGF Receptor and Thrombospondin-1 as Endogenous Targets of ER-Associated Degradation Enhancer EDEM1 in HeLa Cells. Int J Mol Sci 2023; 24:12171. [PMID: 37569550 PMCID: PMC10418772 DOI: 10.3390/ijms241512171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Secretory and membrane proteins are vital for cell activities, including intra- and intercellular communication. Therefore, protein quality control in the endoplasmic reticulum (ER) is an essential and crucial process for eukaryotic cells. Endoplasmic reticulum-associated degradation (ERAD) targets misfolded proteins during the protein maturation process in the ER and leads to their disposal. This process maintains the ER productive function and prevents misfolded protein stress (i.e., ER stress). The ERAD-stimulating factor ER degradation-enhancing α mannosidase-like 1 protein (EDEM1) acts on misfolded proteins to accelerate ERAD, thereby maintaining the productivity of the ER. However, the detail mechanism underlying the function of EDEM1 in ERAD is not completely understood due to a lack of established physiological substrate proteins. In this study, we attempted to identify substrate proteins for EDEM1 using siRNA. The matrix component thrombospondin-1 (TSP1) and epidermal growth factor receptor (EGFR) were identified as candidate targets of EDEM1. Their protein maturation status and cellular localization were markedly affected by knockdown of EDEM1. We also showed that EDEM1 physically associates with EGFR and enhances EGFR degradation via ERAD. Our data highlight the physiological role of EDEM1 in maintaining specific target proteins and provide a potential approach to the regulation of expression of clinically important proteins.
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Affiliation(s)
- Kohta Miura
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Riko Katsuki
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Shusei Yoshida
- Department of Life Science, Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Ren Ohta
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
| | - Taku Tamura
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita 010-8502, Japan
- Department of Life Science, Faculty of Engineering Science, Akita University, Akita 010-8502, Japan
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Dolmatov IY, Nizhnichenko VA. Extracellular Matrix of Echinoderms. Mar Drugs 2023; 21:417. [PMID: 37504948 PMCID: PMC10381214 DOI: 10.3390/md21070417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/19/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
This review considers available data on the composition of the extracellular matrix (ECM) in echinoderms. The connective tissue in these animals has a rather complex organization. It includes a wide range of structural ECM proteins, as well as various proteases and their inhibitors. Members of almost all major groups of collagens, various glycoproteins, and proteoglycans have been found in echinoderms. There are enzymes for the synthesis of structural proteins and their modification by polysaccharides. However, the ECM of echinoderms substantially differs from that of vertebrates by the lack of elastin, fibronectins, tenascins, and some other glycoproteins and proteoglycans. Echinoderms have a wide variety of proteinases, with serine, cysteine, aspartic, and metal peptidases identified among them. Their active centers have a typical structure and can break down various ECM molecules. Echinoderms are also distinguished by a wide range of proteinase inhibitors. The complex ECM structure and the variety of intermolecular interactions evidently explain the complexity of the mechanisms responsible for variations in the mechanical properties of connective tissue in echinoderms. These mechanisms probably depend not only on the number of cross-links between the molecules, but also on the composition of ECM and the properties of its proteins.
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Affiliation(s)
- Igor Yu Dolmatov
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevsky 17, 690041 Vladivostok, Russia
| | - Vladimir A Nizhnichenko
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevsky 17, 690041 Vladivostok, Russia
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Yao G, Deng L, Long X, Zhou Y, Zhou X. An integrated bioinformatic investigation of focal adhesion-related genes in glioma followed by preliminary validation of COL1A2 in tumorigenesis. Aging (Albany NY) 2023; 15:6225-6254. [PMID: 37354488 PMCID: PMC10373961 DOI: 10.18632/aging.204834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/10/2023] [Indexed: 06/26/2023]
Abstract
Focal adhesions (FAs) allow cells to contact the extracellular matrix, helping to maintain tension and enabling signal transmission in cell migration, differentiation, and apoptosis. In addition, FAs are associated with changes in the tumor microenvironment (TME) that lead to malignant progression and drug resistance in tumors. However, there are still few studies on the comprehensive analysis of focal adhesion-related genes (FARGs) in glioma. Expression data and clinical information of glioma samples were downloaded from public databases. Two distinct molecular subtypes were identified based on FARGs using an unsupervised consensus clustering algorithm. A scoring system consisting of nine FARGs was constructed using integrated LASSO regression and multivariate Cox regression. It not only has outstanding prognostic value but also can guide immunotherapy of glioma patients, which was verified in TCGA, CGGA, GSE16011, and IMvigor210 cohorts. The results of bioinformatics analysis, immunohistochemistry staining, and western blotting all revealed that the expression of COL1A2 was up-regulated in glioblastoma and related to poor prognosis outcomes in patients from public datasets. COL1A2 promotes the proliferation, migration, and invasion of glioblastoma cells. A positive correlation between COL1A2 and CD8 was determined in GBM specimens from eight patients. Moreover, the results of cell co-cultured assay showed that COL1A2 participated in the killing of GBM cells by Jurkat cells. Our study indicates that the FARGs have prominent application value in the identification of molecular subtypes and prediction of survival outcomes in glioma patients. Bioinformatics analysis and experimental verification provide a direction for further research on FARGs.
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Affiliation(s)
- Guojun Yao
- Department of Neurosurgery, The First People’s Hospital of Fuzhou City, Fuzhou 344099, Jiangxi, P.R. China
| | - Ling Deng
- College of Nursing and Rehabilitation, Fuzhou Medical College of Nanchang University, Fuzhou 344099, Jiangxi, P.R. China
| | - Xinquan Long
- Department of Neurosurgery, The First People’s Hospital of Fuzhou City, Fuzhou 344099, Jiangxi, P.R. China
| | - Yufan Zhou
- Department of Neurosurgery, The First People’s Hospital of Fuzhou City, Fuzhou 344099, Jiangxi, P.R. China
| | - Xiang Zhou
- Department of Neurosurgery, The First People’s Hospital of Fuzhou City, Fuzhou 344099, Jiangxi, P.R. China
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11
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Ma Z, Wang M, Xu X, Zhang Y, Zhong J, Chen M, Su P, Zhao L. Thrombospondin-1 plasma levels associated with in-hospital major adverse cardiovascular events in patients with acute coronary syndrome. Int J Cardiol 2023; 375:98-103. [PMID: 36640963 DOI: 10.1016/j.ijcard.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 12/25/2022] [Accepted: 01/08/2023] [Indexed: 01/13/2023]
Abstract
BACKGROUND Thrombospondin-1, a large matricellular glycoprotein, exerts multifaced biological effects on the cardiovascular system and is correlated with cardiovascular diseases. Its plasma levels and correlation with in-hospital prognosis are yet unclear in the acute coronary syndrome population. The present study aimed to evaluate the correlation between thrombospondin-1 plasma levels and in-hospital adverse events in patients with acute coronary syndrome. METHODS This is a cross-sectional study. A total of 341 inpatients with acute coronary syndrome were recruited in Beijing Chaoyang Hosipital from May 2021 to November 2021. The thrombospondin-1 plasma levels were measured, and the in-hospital major adverse cardiovascular events, including all-cause death, recurrent ischemia, arrhythmias, and heart failure, were recorded. This correlation was assessed by logistic regression analysis. RESULTS The thrombospondin-1 plasma levels were higher in patients with non-ST-elevation myocardial infarction and ST-elevation myocardial infarction compared to those in unstable angina (P < 0.001), while the differences between the two different types of myocardial infarction were not statistically different. Thrombospondin-1 plasma levels were correlated with GRACE score, leukocytes, neutrophils, platelets, troponin I, creatine kinase-MB, D-dimer, C-reactive protein, erythrocyte sedimentation rate, and log10 brain natriuretic peptide. Furthermore, thrombospondin-1 plasma levels were associated with the in-hospital major adverse cardiovascular events in patients with acute coronary syndrome (P = 0.001). CONCLUSIONS Thrombospondin-1 plasma levels were higher in patients with myocardial infarction than those in unstable angina. The high thrombospondin-1 plasma levels were associated with in-hospital major adverse cardiovascular events.
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Affiliation(s)
- Zheng Ma
- Department of Cardiology, Beijing Tongren Hospital, Capital Medical University, NO.1 Dongjiao Minxiang, Dongcheng District, Beijing 100730, China
| | - Meiping Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, NO.10 Xitoutiao, Youanmen, Fengtai District, Beijing 100054, China
| | - Xiaorong Xu
- Heart Center, Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, NO.8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing 100020, China
| | - Yeping Zhang
- Heart Center, Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, NO.8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing 100020, China
| | - Jiuchang Zhong
- Heart Center, Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, NO.8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing 100020, China
| | - Mulei Chen
- Heart Center, Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, NO.8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing 100020, China
| | - Pixiong Su
- Heart Center, Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, NO.8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing 100020, China.
| | - Lei Zhao
- Heart Center, Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, NO.8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing 100020, China.
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12
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Zhao W, Shen B, Cheng Q, Zhou Y, Chen K. Roles of TSP1-CD47 signaling pathway in senescence of endothelial cells: cell cycle, inflammation and metabolism. Mol Biol Rep 2023; 50:4579-4585. [PMID: 36897523 DOI: 10.1007/s11033-023-08357-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 02/23/2023] [Indexed: 03/11/2023]
Abstract
Endothelial cells (ECs) serve as a barrier with forming a monolayer lining in the surface of vascular system. Many mature cell types are post-mitotic like neurons, but ECs have the ability to grow during angiogenesis. Vascular endothelial growth factor (VEGF) stimulates growth of vascular ECs derived from arteries, veins, and lymphatics and induces angiogenesis. Senescence of ECs is regarded as a key contributor in aging-induced vascular dysfunction via evoking increase of ECs permeability, impairment of angiogenesis and vascular repair. Several genomics and proteomics studies on ECs senescence reported changes in gene and protein expression that directly correlate with vascular systemic disorder. CD47 functions as a signaling receptor for secreted matricellular protein thrombospondin-1 (TSP1) and plays an important role in several fundamental cellular functions, including proliferation, apoptosis, inflammation, and atherosclerotic response. TSP1-CD47 signaling is upregulated with age in ECs, concurrent with suppression of key self-renewal genes. Recent studies indicate that CD47 is involved in regulation of senescence, self-renewal and inflammation. In this review, we highlight the functions of CD47 in senescent ECs, including modulation of cell cycle, mediation of inflammation and metabolism by the experimental studies, which may provide CD47 as a potential therapeutic target for aging-associated vascular dysfunction.
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Affiliation(s)
- Wei Zhao
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Botao Shen
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Quanli Cheng
- Department of Cardiology, The First Hospital of Jilin University, Changchun, China
| | - Yangyang Zhou
- Department of Neurology, The First Hospital of Jilin University, Changchun, China.
| | - Kexin Chen
- Institute of Translational Medicine, The First Hospital of Jilin University, Changchun, China.
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13
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Li X, Ding Y, Zhou M, Zhou Z, Xie T, Wang Y, Liu Z, Si Y, Shi Z. Deficiency of thrombospondin-2 alleviates intimal hyperplasia in mice by modulating vascular smooth muscle cell proliferation and migration. FASEB J 2023; 37:e22743. [PMID: 36645109 DOI: 10.1096/fj.202201040r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 11/29/2022] [Accepted: 12/16/2022] [Indexed: 01/17/2023]
Abstract
Thrombospondin-2 (Tsp2), a glycoprotein in the extracellular matrix, plays a critical role in the maintenance of vascular homeostasis. However, its role in the pathogenesis of cardiovascular disorders such as intimal hyperplasia is not fully elucidated. This study, therefore, aims to explore the effect of Tsp2 on intimal hyperplasia and its associated underlying mechanisms. Intimal hyperplasia (IH) was established using a modified wire-mediated femoral artery injury model. Immunofluorescence and qPCR identified upregulated Tsp2 expression in the injured femoral artery compared with the uninjured femoral artery. Similarly, TSP2 expression was also increased in human samples from the atherosclerotic femoral artery and colocalized with vascular smooth muscle cells (VSMCs). Compared with the wild-type littermates, Tsp2 knockout mice displayed a mitigated IH in the injured femoral artery, as demonstrated by a decreased neointimal area and intimal/median ratio. Primary mouse VSMCs were cultured to explore the mechanism by which Tsp2 influenced IH in vitro. PDGF-stimulated VSMCs presented an elevated Tsp2 expression and enhanced migration and proliferation. However, Tsp2 knockdown by siRNA blocked the increased migration and proliferation of VSMCs. Further analysis identified an association between Notch3 and IH when the intracellular domain of Notch3 (Nicd3) was upregulated in PDGF-stimulated VSMCs and femoral arteries with IH in human tissues. Along with the overexpression and downregulation of Tsp2, the Nicd3 expression was also up and downregulated accordingly. Tsp2 was associated with IH and may serve as a therapeutic target for IH. Downregulation of Tsp2 could mitigate the progression of IH by modulating the proliferation and migration of VSMCs.
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Affiliation(s)
- Xu Li
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Yong Ding
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Min Zhou
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhenyu Zhou
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Tianchen Xie
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Yonggang Wang
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhenjie Liu
- Department of Vascular Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Si
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
| | - Zhenyu Shi
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.,Institute of Vascular Surgery, Fudan University, Shanghai, China.,National Clinical Research Center for Interventional Medicine, Shanghai, China
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14
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Huang TL, Mei YW, Li Y, Chen X, Yu SX, Kuang YQ, Shu HF. Thrombospondin-2 promotes the proliferation and migration of glioma cells and contributes to the progression of glioma. Chin Neurosurg J 2022; 8:39. [PMID: 36476392 PMCID: PMC9728004 DOI: 10.1186/s41016-022-00308-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Gliomas, especially high-grade gliomas, are highly malignant with a poor prognosis. Although existing treatments have improved the survival rate of patients with glioma, the recurrence and mortality rates are still not ideal. The molecular mechanisms involved in the occurrence and development of glioma are still poorly understood. We previously reported that thrombospondin-2 (TSP2) expression was increased in tumor specimens from rat models, promoting excitatory synapse formation. However, little is known about the effect of TSP2 on the biological characteristics of glioma. METHODS Glioma and cerebral cortex tissues were collected from 33 patients, and the expression of TSP2 in them was analyzed. Next, the proliferation and migration of TSP2 on glioma cells were analyzed in vitro. At last, a glioma transplantation model was constructed to explore the growth of TSP2 on glioma in vivo. RESULTS The expression of TSP2 in surgical glioma specimens was increased compared to that in the normal cortex. Interestingly, the TSP2 protein level was higher in high-grade glioma (HGG, World Health Organization (WHO) grades 3-4) than in low-grade glioma (LGG, WHO grades 1-2) tissues. Exogenous addition of the TSP2 protein at an appropriate concentration promoted the migration of glioma cells but did not significantly affect their proliferation. Surprisingly, overexpression of TSP2 promoted both the migration and proliferation of cultured glioma cells. Moreover, in vivo experimental data implied that overexpression of TSP2 in C6 cells promoted the malignant growth of gliomas, while knockout of TSP2 slowed glioma growth. CONCLUSIONS TSP2 promotes the migration and proliferation of glioma cells, which may provide new ideas for blocking glioma progression.
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Affiliation(s)
- Tian-Lan Huang
- Department of Neurosurgery, General Hospital of Western Theater Command of PLA, No.270 Rongdu Road, Jinniu District, 610083 Chengdu, China ,grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
| | - Yi-Wen Mei
- Department of Neurosurgery, General Hospital of Western Theater Command of PLA, No.270 Rongdu Road, Jinniu District, 610083 Chengdu, China ,grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
| | - Yang Li
- Department of Neurosurgery, General Hospital of Western Theater Command of PLA, No.270 Rongdu Road, Jinniu District, 610083 Chengdu, China ,grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
| | - Xin Chen
- grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
| | - Si-Xun Yu
- Department of Neurosurgery, General Hospital of Western Theater Command of PLA, No.270 Rongdu Road, Jinniu District, 610083 Chengdu, China ,grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
| | - Yong-Qin Kuang
- grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
| | - Hai-Feng Shu
- Department of Neurosurgery, General Hospital of Western Theater Command of PLA, No.270 Rongdu Road, Jinniu District, 610083 Chengdu, China ,grid.263901.f0000 0004 1791 7667College of Medicine, Southwest Jiaotong University, No. 111, North Section 1, Second Ring Road, 610031 Chengdu, China
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15
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Tabary M, Gheware A, Peñaloza HF, Lee JS. The matricellular protein thrombospondin-1 in lung inflammation and injury. Am J Physiol Cell Physiol 2022; 323:C857-C865. [PMID: 35912991 PMCID: PMC9467471 DOI: 10.1152/ajpcell.00182.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 11/22/2022]
Abstract
Matricellular proteins comprise a diverse group of molecular entities secreted into the extracellular space. They interact with the extracellular matrix (ECM), integrins, and other cell-surface receptors, and can alter matrix strength, cell attachment to the matrix, and cell-cell adhesion. A founding member of this group is thrombospondin-1 (TSP-1), a high molecular-mass homotrimeric glycoprotein. Given the importance of the matrix and ECM remodeling in the lung following injury, TSP-1 has been implicated in a number of lung pathologies. This review examines the role of TSP-1 as a damage controller in the context of lung inflammation, injury resolution, and repair in noninfectious and infectious models. This review also discusses the potential role of TSP-1 in human diseases as it relates to lung inflammation and injury.
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Affiliation(s)
- Mohammadreza Tabary
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Atish Gheware
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hernán F Peñaloza
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Janet S Lee
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Acute Lung Injury Center of Excellence, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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16
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Magerd S, Senarai T, Thongsum O, Chawiwithaya C, Sato C, Kitajima K, Weerachatyanukul W, Asuvapongpatana S, Surinlert P. Shrimp thrombospondin (TSP): presence of O-β1,4 N-acetylglucosamine polymers and its function in TSP chain association in egg extracellular matrix. Sci Rep 2022; 12:7925. [PMID: 35562392 PMCID: PMC9106747 DOI: 10.1038/s41598-022-11873-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 04/29/2022] [Indexed: 11/12/2022] Open
Abstract
We characterized the existence of O-β(1,4)-GlcNAc polymers (β1,4GNP) that were anchored on the O-linked glycosylation sites of shrimp thrombospondin (pmTSP-II). There were five putative β1,4GNP linkages on the epithelial growth factor-like domain of pmTSP-II. Antibody against O-β-GlcNAc (CTD110.6) was used to prove the existence of linear and complex β1,4GNP. The antibody well reacted with linear chito-triose, -tetraose and -pentaose conjugated with phosphatidylethanolamine lipid. The immunoreactivity could also be detected with a complex β1,4GNP within pmTSP-II (at MW > 250 kDa). Upon denaturing the protein with SDS-PAGE buffer, the size of pmTSP-II was shifted to be 250 kDa, approximately 2.5 folds larger than the deduced molecular mass of pmTSP-II (110 kDa), suggesting additional association of pmTSP-II apart from its known disulfide bridging. This was confirmed by chitinase digestion on pmTSP-II protein leading to the subsequent smaller protein bands at 110–170 kDa in time- and concentration-dependent manners. These bands well reacted with CTD110.6 antibody and disappeared after extensive chitinase hydrolysis. Together, we believe that β1,4GNP on pmTSP-II serve the function in an inter-chain association to provide structural architecture of egg extracellular matrix, a novel function of pmTSP-II in reproductive biology.
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Affiliation(s)
- Sirilug Magerd
- Department of Basic Medical Science, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | - Thanyaporn Senarai
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Orawan Thongsum
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | - Chihiro Sato
- Bioscience and Biotechnology Center and Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Ken Kitajima
- Bioscience and Biotechnology Center and Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | | | | | - Piyaporn Surinlert
- Chulabhorn International College of Medicine, Thammasat University, Pathum-Thani, Thailand. .,Research Unit in Synthesis and Applications of Graphene, Thammasat University, Pathum-Thani, Thailand.
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17
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Plana E, Oto J, Medina P, Herranz R, Fernández-Pardo Á, Requejo L, Miralles M. Thrombospondins in human aortic aneurysms. IUBMB Life 2022; 74:982-994. [PMID: 35293116 DOI: 10.1002/iub.2610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 02/08/2022] [Accepted: 02/12/2022] [Indexed: 11/08/2022]
Abstract
Thrombospondins are a family of matricellular proteins with a multimeric structure that is known to be involved in several biological and pathological processes. Their relationship with vascular disorders has raised special interest recently. Aortic aneurysms are related to the impairment of vascular remodeling, in which extracellular matrix proteins seem to play an important role. Thus, research in thrombospondins, and their potential role in aneurysm development is progressively gaining importance. Nevertheless, studies showing thrombospondin dysregulation in human samples are still scarce. Although studies performed in vitro and in vivo models are essential to understand the molecular mechanisms and pathways underlying the disorder, descriptive studies in human samples are also necessary to ascertain their real value as biomarkers and/or novel therapeutic targets. The present article reviews the latest findings regarding the role of thrombospondins in aortic aneurysm development, paying particular attention to the studies performed in human samples.
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Affiliation(s)
- Emma Plana
- Angiology and Vascular Surgery Service, La Fe University and Polytechnic Hospital, Valencia, Spain.,Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, Valencia, Spain
| | - Julia Oto
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, Valencia, Spain
| | - Pilar Medina
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, Valencia, Spain
| | - Raquel Herranz
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, Valencia, Spain
| | - Álvaro Fernández-Pardo
- Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, Valencia, Spain
| | - Lucia Requejo
- Angiology and Vascular Surgery Service, La Ribera University Hospital, Alzira, Valencia, Spain
| | - Manuel Miralles
- Angiology and Vascular Surgery Service, La Fe University and Polytechnic Hospital, Valencia, Spain.,Haemostasis, Thrombosis, Arteriosclerosis and Vascular Biology Research Group, Medical Research Institute Hospital La Fe, Valencia, Spain.,Department of Surgery, University of Valencia, Valencia, Spain
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18
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Fu Q, Li Y, Zhang H, Cao M, Zhang L, Gao C, Cai X, Chen D, Yang Z, Li J, Yang N, Li C. Comparative Transcriptome Analysis of Spleen Reveals Potential Regulation of Genes and Immune Pathways Following Administration of Aeromonas salmonicida subsp. masoucida Vaccine in Atlantic Salmon (Salmo salar). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2022; 24:97-115. [PMID: 35084599 PMCID: PMC8792528 DOI: 10.1007/s10126-021-10089-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Aeromonas salmonicida is a global fish pathogen. Aeromonas salmonicida subsp. masoucida (ASM) is classified as atypical A. salmonicida and caused huge losses to salmonid industry in China. Hence, it is of great significance to develop ASM vaccine and explore its protection mechanism in salmonids. In this regard, we conducted RNA-seq analysis with spleen tissue of Atlantic salmon after ASM vaccination to reveal genes, their expression patterns, and pathways involved in immune protections. In our results, a total of 441.63 million clean reads were obtained, and 389.37 million reads were mapped onto the Atlantic salmon reference genome. In addition, 1125, 2126, 1098, 820, and 1351 genes were significantly up-regulated, and 747, 2626, 818, 254, and 908 genes were significantly down-regulated post-ASM vaccination at 12 h, 24 h, 1 month, 2 months, and 3 months, respectively. Subsequent pathway analysis revealed that many differentially expressed genes (DEGs) following ASM vaccination were involved in cytokine-cytokine receptor interaction (TNFRSF11b, IL-17RA, CCR9, and CXCL11), HTLV-I infection (MR1 and HTLV-1), MAPK signaling pathway (MAPK, IL8, and TNF-α-1), PI3K-Akt signaling pathway (PIK3R3, THBS4, and COL2A1), and TNF signaling pathway (PTGS2, TNFRSF21-l, and CXCL10). Finally, the results of qRT-PCR showed a significant correlation with RNA-seq results, suggesting the reliability of RNA-seq for gene expression analysis. This study provided insights into regulation of gene expression and their involved pathways in Atlantic salmon spleen in responses to vaccine, and set the foundation for further study on the vaccine protective mechanism in Atlantic salmon as well as other teleost species.
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Affiliation(s)
- Qiang Fu
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yuqing Li
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Hao Zhang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Min Cao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Lu Zhang
- Shandong Sinder Technology Co., Ltd, Zhucheng, 262200, China
| | - Chengbin Gao
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Xin Cai
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Defeng Chen
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Ziying Yang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jie Li
- Key Laboratory of Maricultural Organism Disease Control, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Ning Yang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chao Li
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China.
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19
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Qiu J, Tan J. In vitro and in silico analysis of a E559K mutation on cartilage oligomeric matrix protein. Mutat Res 2022; 824:111774. [PMID: 35077910 DOI: 10.1016/j.mrfmmm.2022.111774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/29/2020] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Pseudoachondroplasia (PSACH) is known as an autosomal dominant disorder associated with mutations in the gene of cartilage oligomeric matrix protein (COMP). The pathomolecular mechanisms of PSACH as a result of C-terminal globular region (CTD) mutations remain unclear. A heterozygous mutation (E559 K) in a Chinese family diagnosed with PSACH was reported in this study. To understand the pathogenesis of this mutation, we studied chondrogenic differentiation of patient menstrual blood-derived stem cells (MenSCs), and the impact of the mutation on structural changes of COMP was investigated using all-atom molecular dynamics simulation. The results suggested that the interactions with calcium and other molecules in the mutant structure were affected resulting in misfolding of the protein, which leads to ER stress and finally affects the survival of chondrocytes. The findings may promote the understanding of the pathomolecular mechanisms of PSACH, and possibly the development of drugs to treat the disease.
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Affiliation(s)
- Jiahui Qiu
- Reproductive Medical Center of Gynecology and Obstetrics Department, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China; Key Laboratory of Reproductive Dysfunction Diseases and Fertility Remodeling of Liaoning Province, Shenyang, Liaoning, China
| | - Jichun Tan
- Reproductive Medical Center of Gynecology and Obstetrics Department, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China; Key Laboratory of Reproductive Dysfunction Diseases and Fertility Remodeling of Liaoning Province, Shenyang, Liaoning, China.
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20
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Pinessi D, Resovi A, Sangalli F, Morosi L, Zentilin L, Borsotti P, Carlessi E, Passoni A, Davoli E, Belotti D, Giavazzi R, Giacca M, Valbusa G, Berndt A, Zucchetti M, Taraboletti G. Tumor vascular remodeling by thrombospondin-1 enhances drug delivery and antineoplastic activity. Matrix Biol 2021; 103-104:22-36. [PMID: 34653669 DOI: 10.1016/j.matbio.2021.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/31/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022]
Abstract
The disorganized and inefficient tumor vasculature is a major obstacle to the delivery and efficacy of antineoplastic treatments. Antiangiogenic agents can normalize the tumor vessels, improving vessel function and boosting the distribution and activity of chemotherapy. The type III repeats (T3R) domain of thrombospondin-1 contains different potential antiangiogenic sequences. We therefore hypothesized that it might affect the tumor vasculature. Ectopic expression of the T3R domain by the tumor cells or by the host, or administration of recombinant T3R, delayed the in vivo growth of experimental tumors. Tumors presented marked reorganization of the vasculature, with abundant but smaller vessels, associated with substantially less necrosis. Mechanistically, the use of truncated forms of the domain, containing different active sequences, pointed to the FGF2/FGFR/ERK axis as a target for T3R activity. Along with reduced necrosis, the expression of T3R promoted tumor distribution of chemotherapy (paclitaxel), with a higher drug concentration and more homogeneous distribution, as assessed by HPLC and MALDI imaging mass spectrometry. T3R-expressing tumors were more responsive to paclitaxel and cisplatin. This study shows that together with its known role as a canonical inhibitor of angiogenesis, thrombospondin-1 can also remodel tumor blood vessels, affecting the morphological and functional properties of the tumor vasculature. The ability of T3R to reduce tumor growth and improve the response to chemotherapy opens new perspectives for therapeutic strategies based on T3R to be used in combination therapies.
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Affiliation(s)
- Denise Pinessi
- Laboratory of Tumor Microenvironment, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy
| | - Andrea Resovi
- Laboratory of Tumor Microenvironment, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy
| | - Fabio Sangalli
- Laboratory of Renal Biophysics, Department of Biomedical Engineering, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy
| | - Lavinia Morosi
- Cancer Clinical Pharmacology Unit, Laboratory of Cancer Pharmacology, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | - Lorena Zentilin
- Molecular Medicine Laboratory, International Centre for Genetic Engineering and Biotechnology (ICGEB), 34149 Trieste, Italy
| | - Patrizia Borsotti
- Laboratory of Tumor Microenvironment, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy
| | - Elena Carlessi
- Laboratory of Tumor Microenvironment, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy
| | - Alice Passoni
- Center of Mass Spectrometry Research for Health and Environment and Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | - Enrico Davoli
- Center of Mass Spectrometry Research for Health and Environment and Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | - Dorina Belotti
- Laboratory of Tumor Microenvironment, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy
| | - Raffaella Giavazzi
- Laboratory of Cancer Metastasis Therapeutics, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | - Mauro Giacca
- School of Cardiovascular Medicine and Sciences, King's College London, London SE5 9NU, UK
| | | | - Alexander Berndt
- Section Pathology, Institute of Legal Medicine, Jena University Hospital, D-07747 Jena, Germany
| | - Massimo Zucchetti
- Cancer Clinical Pharmacology Unit, Laboratory of Cancer Pharmacology, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 20156 Milan, Italy
| | - Giulia Taraboletti
- Laboratory of Tumor Microenvironment, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, 24126 Bergamo, Italy.
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21
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Mizoguchi T, MacDonald BT, Bhandary B, Popp NR, Laprise D, Arduini A, Lai D, Zhu QM, Xing Y, Kaushik VK, Kathiresan S, Ellinor PT. Coronary Disease Association With ADAMTS7 Is Due to Protease Activity. Circ Res 2021; 129:458-470. [PMID: 34176299 DOI: 10.1161/circresaha.121.319163] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Taiji Mizoguchi
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA.,Now with Verve Therapeutics, Cambridge, MA, USA (T.M., S.K.)
| | - Bryan T MacDonald
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Bidur Bhandary
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Nicholas R Popp
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Dylan Laprise
- Center for the Development of Therapeutics (D.L., Y.X., V.K.K.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Alessandro Arduini
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Daniel Lai
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Qiuyu Martin Zhu
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA.,Center for Genomic Medicine (Q.M.Z., S.K.), Massachusetts General Hospital, Boston
| | - Yi Xing
- Center for the Development of Therapeutics (D.L., Y.X., V.K.K.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Virendar K Kaushik
- Center for the Development of Therapeutics (D.L., Y.X., V.K.K.), Broad Institute of MIT and Harvard, Cambridge, MA
| | - Sekar Kathiresan
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA.,Now with Verve Therapeutics, Cambridge, MA, USA (T.M., S.K.).,Center for Genomic Medicine (Q.M.Z., S.K.), Massachusetts General Hospital, Boston
| | - Patrick T Ellinor
- Cardiovascular Disease Initiative (T.M., B.T.M., B.B., N.R.P., A.A., D.L., Q.M.Z., S.K., P.T.E.), Broad Institute of MIT and Harvard, Cambridge, MA.,Cardiovascular Research Center (P.T.E.), Massachusetts General Hospital, Boston
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22
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Chou K, Chang A, Ho C, Tsai T, Chen H, Chen P, Hwang TI. Thrombospondin-4 promotes bladder cancer cell migration and invasion via MMP2 production. J Cell Mol Med 2021; 25:6046-6055. [PMID: 34142438 PMCID: PMC8406484 DOI: 10.1111/jcmm.16463] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 02/01/2021] [Accepted: 03/03/2021] [Indexed: 12/21/2022] Open
Abstract
Bladder cancer (BC) is the second most common urological tumour in Western countries. Approximately, 80% of patients with BC will present with non-muscle invasive bladder cancer (NMIBC), whereas a quarter will have muscle invasive disease (MIBC) at the time of BC diagnosis. However, patients with NMIBC are at risk of BC recurrence or progression into MIBC, and an MIBC prognosis is determined by the presence of progression and metastasis. Matrix metalloproteinase 2 (MMP2), a type of matrix metalloproteinase (MMP), plays a major role in tumour invasion and is well-characterized in BC prognosis. In BC, the mechanisms regulating MMP2 expression, and, in turn, promote cancer invasion, have hardly been explored. Thrombospondin-4 (THBS4/TSP4) is a matricellular glycoprotein that regulates multiple biological functions, including proliferation, angiogenesis, cell adhesion and extracellular matrix modelling. Based on the results of a meta-analysis in the Gene Expression Profiling Interactive Analysis 2 database, we observed that TSP4 expression levels were consistent with overall survival (OS) rate and BC progression, with the highest expression levels observed in the advanced stages of BC and associated with poor OS rate. In our pilot experiments, incubation with recombinant TSP4 promoted the migration and invasion in BC cells. Furthermore, MMP2 expression levels increased after recombinant TSP4 incubation. TSP4-induced-MMP2 expression and cell motility were regulated via the AKT signalling pathway. Our findings facilitate further investigation into TSP4 silencing-based therapeutic strategies for BC.
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Affiliation(s)
- Kuang‐Yu Chou
- Division of UrologyDepartment of SurgeryShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
- Division of UrologySchool of MedicineFu‐Jen Catholic UniversityNew TaipeiTaiwan
| | - An‐Chen Chang
- Translational Medicine CenterShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
| | - Chao‐Yen Ho
- Division of UrologyDepartment of SurgeryShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
- School of MedicineInstitute of Traditional MedicineNational Yang‐Ming UniversityTaipeiTaiwan
| | - Te‐Fu Tsai
- Division of UrologyDepartment of SurgeryShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
- Division of UrologySchool of MedicineFu‐Jen Catholic UniversityNew TaipeiTaiwan
| | - Hung‐En Chen
- Division of UrologyDepartment of SurgeryShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
| | - Po‐Chun Chen
- Translational Medicine CenterShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
- Department of BiotechnologyCollege of Health ScienceAsia UniversityTaichungTaiwan
- Department of Medical ResearchChina Medical University HospitalChina Medical UniversityTaichungTaiwan
| | - Thomas I‐Sheng Hwang
- Division of UrologyDepartment of SurgeryShin‐Kong Wu Ho‐Su Memorial HospitalTaipeiTaiwan
- Division of UrologySchool of MedicineFu‐Jen Catholic UniversityNew TaipeiTaiwan
- Department of UrologyTaipei Medical UniversityTaipeiTaiwan
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23
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Lai YH, Lee PY, Lu CY, Liu YR, Wang SC, Liu CC, Chang YC, Chen YH, Su CC, Li CY, Liu PL. Thrombospondin 1-induced exosomal proteins attenuate hypoxia-induced paraptosis in corneal epithelial cells and promote wound healing. FASEB J 2021; 35:e21200. [PMID: 33341997 DOI: 10.1096/fj.202001106rrr] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 10/15/2020] [Accepted: 11/03/2020] [Indexed: 12/14/2022]
Abstract
Thrombospondin-1 (TSP1) is involved in corneal wound healing caused by chemical injury. Herein, we examined the effects of TSP1 on hypoxia-induced damages and wound-healing activity in human corneal epithelial (HCE) cells. Exosomal protein expression was determined using liquid chromatography-tandem mass spectrometry, and HCE cell migration and motility were examined through wound-healing assay and time-lapse microscopy. Reestablishment of cell junctions by TSP1 was assessed through confocal microscopy and 3D image reconstruction. Our results show that CoCl2 -induced hypoxia promoted HCE cell death by paraptosis. TSP1 protected these cells against paraptosis by attenuating mitochondrial membrane potential depletion, swelling and dilation of endoplasmic reticulum and mitochondria, and mitochondrial fission. Exosomes isolated from HCE cells treated with TSP1 contained wound healing-associated proteins that were taken up by HCE cells to promote tissue remodeling and repair. TSP1 protected HCE cells against hypoxia-induced damages and inhibited paraptosis progression by promoting cell migration, cell-cell adhesion, and extracellular matrix remodeling. These findings indicate that TSP1 ameliorates hypoxia-induced paraptosis in HCE cells and promotes wound healing and remodeling by regulating exosomal protein expression. TSP1 may, therefore, play important roles in the treatment of hypoxia-associated corneal diseases.
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Affiliation(s)
- Yu-Hung Lai
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Yen Lee
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Yu Lu
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Ru Liu
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Chi Wang
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ching-Chih Liu
- Department of Ophthalmology, Chi Mei Medical Center, Tainan, Taiwan
| | - Yo-Chen Chang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yung-Hsiang Chen
- Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chia-Cheng Su
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Yang Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Len Liu
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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24
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Abstract
The thrombospondin family comprises of five multifunctional glycoproteins, whose best-studied member is thrombospondin 1 (TSP1). This matricellular protein is a potent antiangiogenic agent that inhibits endothelial migration and proliferation, and induces endothelial apoptosis. Studies have demonstrated a regulatory role of TSP1 in cell migration and in activation of the latent transforming growth factor beta 1 (TGFβ1). These functions of TSP1 translate into its broad modulation of immune processes. Further, imbalances in immune regulation have been increasingly linked to pathological conditions such as obesity and diabetes mellitus. While most studies in the past have focused on the role of TSP1 in cancer and inflammation, recently published data have revealed new insights about the role of TSP1 in physiological and metabolic disorders. Here, we highlight recent findings that associate TSP1 and its receptors to obesity, diabetes, and cardiovascular diseases. TSP1 regulates nitric oxide, activates latent TGFβ1, and interacts with receptors CD36 and CD47, to play an important role in cell metabolism. Thus, TSP1 and its major receptors may be considered a potential therapeutic target for metabolic diseases.
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Affiliation(s)
- Linda S. Gutierrez
- Department of Biology, Wilkes University, Wilkes Barre, PA, United States
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25
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A Novel COMP Mutated Allele Identified in a Chinese Family with Pseudoachondroplasia. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6678531. [PMID: 33748277 PMCID: PMC7960025 DOI: 10.1155/2021/6678531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/30/2021] [Accepted: 02/17/2021] [Indexed: 01/28/2023]
Abstract
Pseudoachondroplasia (PSACH) is an autosomal dominant skeletal dysplasia with an estimated incidence of ~1/60000 that is characterized by disproportionate short stature, brachydactyly, joint laxity, and early-onset osteoarthritis. COMP encodes the cartilage oligomeric matrix protein, which is expressed predominantly in the extracellular matrix (ECM) surrounding the cells that make up cartilage, ligaments, and tendons. Mutations in COMP are known to give rise to PSACH. In this study, we identified a novel nucleotide mutation (NM_000095.2: c.1317C>G, p.D439E) in COMP responsible for PSACH in a Chinese family by employing whole-exome sequencing (WES) and built the structure model of the mutant protein to clarify its pathogenicity. The novel mutation cosegregated with the affected individuals. Our study expands the spectrum of COMP mutations and further provides additional genetic testing information for other PSACH patients.
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26
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Su W, Guan Y, Huang B, Wang J, Wei Y, Zhao Y, Jiao Q, Ji J, Yu D, Xu L. Bioinformatic analysis reveals hub genes and pathways that promote melanoma metastasis. BMC Cancer 2020; 20:863. [PMID: 32894090 PMCID: PMC7487637 DOI: 10.1186/s12885-020-07372-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 08/31/2020] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Melanoma has the highest mortality rate of all skin tumors, and metastases are the major cause of death from it. The molecular mechanism leading to melanoma metastasis is currently unclear. METHODS With the goal of revealing the underlying mechanism, three data sets with accession numbers GSE8401, GSE46517 and GSE7956 were downloaded from the Gene Expression Omnibus (GEO) database. After identifying the differentially expressed gene (DEG) of primary melanoma and metastatic melanoma, three kinds of analyses were performed, namely functional annotation, protein-protein interaction (PPI) network and module construction, and co-expression and drug-gene interaction prediction analysis. RESULTS A total of 41 up-regulated genes and 79 down-regulated genes was selected for subsequent analyses. Results of pathway enrichment analysis showed that extracellular matrix organization and proteoglycans in cancer are closely related to melanoma metastasis. In addition, seven pivotal genes were identified from PPI network, including CXCL8, THBS1, COL3A1, TIMP3, KIT, DCN, and IGFBP5, which have all been verified in the TCGA database and clinical specimens, but only CXCL8, THBS1 and KIT had significant differences in expression. CONCLUSIONS To conclude, CXCL8, THBS1 and KIT may be the hub genes in the metastasis of melanoma and thus may be regarded as therapeutic targets in the future.
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Affiliation(s)
- Wenxing Su
- Department of Dermatology, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, Jiangsu, 215000, People's Republic of China.,Department of Medicine, Soochow University, No. 199 Renai Street, Suzhou, Jiangsu, 215000, People's Republic of China
| | - Yi Guan
- School of Foreign Languages, Soochow University, No. 1 Shizi Street, Suzhou, 215000, Jiangsu, People's Republic of China
| | - Biao Huang
- Department of Medicine, Soochow University, No. 199 Renai Street, Suzhou, Jiangsu, 215000, People's Republic of China.,Department of Burn and Plastic Surgery, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, 215000, People's Republic of China
| | - Juanjuan Wang
- Department of Dermatology, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, Jiangsu, 215000, People's Republic of China
| | - Yuqian Wei
- Department of Dermatology, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, Jiangsu, 215000, People's Republic of China
| | - Ying Zhao
- Department of Dermatology, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, Jiangsu, 215000, People's Republic of China
| | - Qingqing Jiao
- Department of Dermatology, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, 215000, People's Republic of China.
| | - Jiang Ji
- Department of Dermatology, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, Jiangsu, 215000, People's Republic of China.
| | - Daojiang Yu
- Department of Plastic Surgery, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, Jiangsu, 215000, People's Republic of China.
| | - Longjiang Xu
- Department of Pathology, The Second Affiliated Hospital of Soochow University, No. 1055 Sanxiang Street, Suzhou, 215000, Jiangsu, People's Republic of China
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27
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Kim MS, Choi HS, Wu M, Myung J, Kim EJ, Kim YS, Ro S, Ha SE, Bartlett A, Wei L, Ryu HS, Choi SC, Park WC, Kim KY, Lee MY. Potential Role of PDGFRβ-Associated THBS4 in Colorectal Cancer Development. Cancers (Basel) 2020; 12:cancers12092533. [PMID: 32899998 PMCID: PMC7564555 DOI: 10.3390/cancers12092533] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/24/2020] [Accepted: 08/31/2020] [Indexed: 12/16/2022] Open
Abstract
Simple Summary We found increased levels of THBS4 and PDGFRb in tumor tissues compared to normal tissues of colon cancer patients. The relationship and the cause of the increase in these proteins had to be determined. Therefore, we performed several experiments and confirmed that excessive PDGFRb stimulation induces the THBS4 secretion through the intracellular Ca2+ signaling proteins. Our data show the possibility of post-translational modification of THBS4 by PDGFRb stimulation as there was no significant change in the THBS4 mRNA. Abstract Colorectal cancer is a significant cause of death since it frequently metastasizes to several organs such as the lung or liver. Tumor development is affected by various factors, including a tumor microenvironment, which may be an essential factor that leads to tumor growth, proliferation, invasion, and metastasis. In the tumor microenvironment, abnormal changes in various growth factors, enzymes, and cytokines can wield a strong influence on cancer. Thrombospondin-4 (THBS4), which is an extracellular matrix protein, also plays essential roles in the tumor microenvironment and mediates angiogenesis by transforming growth factor-β (TGFβ) signaling. Platelet-derived growth factor receptor β (PDGFRβ), which is a receptor tyrosine kinase and is also a downstream signal of TGFβ, is associated with invasion and metastasis in colorectal cancer. We identified that PDGFRβ and THBS4 are overexpressed in tumor tissues of colorectal cancer patients, and that PDGF-D expression increased after TGFβ treatment in the colon cancer cell line DLD-1. TGFβ and PDGF-D increased cellular THBS4 protein levels and secretion but did not increase THBS4 mRNA levels. This response was further confirmed by the inositol 1,4,5-triphosphate receptor (IP3R) and stromal interaction molecule 1 (STIM1) blockade as well as the PDGFRβ blockade. We propose that the PDGFRβ signal leads to a modification of the incomplete form of THBS4 to its complete form through IP3R, STIM1, and Ca2+-signal proteins, which further induces THBS4 secretion. Additionally, we identified that DLD-1 cell-conditioned medium stimulated with PDGF-D promotes adhesion, migration, and proliferation of colon myofibroblast CCD-18co cells, and this effect was intensified in the presence of thrombin. These findings suggest that excessive PDGFRβ signaling due to increased TGFβ and PDGF-D in colorectal tumors leads to over-secretion of THBS4 and proliferative tumor development.
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Affiliation(s)
- Min Seob Kim
- Department of Physiology, Digestive Disease Research Institute, and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.S.K.); (H.S.C.); (M.W.); (J.M.)
| | - Hyun Seok Choi
- Department of Physiology, Digestive Disease Research Institute, and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.S.K.); (H.S.C.); (M.W.); (J.M.)
| | - Moxin Wu
- Department of Physiology, Digestive Disease Research Institute, and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.S.K.); (H.S.C.); (M.W.); (J.M.)
| | - JiYeon Myung
- Department of Physiology, Digestive Disease Research Institute, and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.S.K.); (H.S.C.); (M.W.); (J.M.)
| | - Eui Joong Kim
- Department of Gastroenterology, Digestive Disease Research Institute, School of Medicine, Wonkwang University, Iksan 54538, Korea; (E.J.K.); (Y.S.K.); (H.-S.R.); (S.C.C.)
| | - Yong Sung Kim
- Department of Gastroenterology, Digestive Disease Research Institute, School of Medicine, Wonkwang University, Iksan 54538, Korea; (E.J.K.); (Y.S.K.); (H.-S.R.); (S.C.C.)
| | - Seungil Ro
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA; (S.R.); (S.E.H.); (A.B.); (L.W.)
| | - Se Eun Ha
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA; (S.R.); (S.E.H.); (A.B.); (L.W.)
| | - Allison Bartlett
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA; (S.R.); (S.E.H.); (A.B.); (L.W.)
| | - Lai Wei
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, NV 89557, USA; (S.R.); (S.E.H.); (A.B.); (L.W.)
| | - Han-Seung Ryu
- Department of Gastroenterology, Digestive Disease Research Institute, School of Medicine, Wonkwang University, Iksan 54538, Korea; (E.J.K.); (Y.S.K.); (H.-S.R.); (S.C.C.)
| | - Suck Chei Choi
- Department of Gastroenterology, Digestive Disease Research Institute, School of Medicine, Wonkwang University, Iksan 54538, Korea; (E.J.K.); (Y.S.K.); (H.-S.R.); (S.C.C.)
| | - Won Cheol Park
- Department of Surgery, Digestive Disease Research Institute, School of Medicine, Wonkwang University, Iksan 54538, Korea; (W.C.P.); (K.Y.K.)
| | - Keun Young Kim
- Department of Surgery, Digestive Disease Research Institute, School of Medicine, Wonkwang University, Iksan 54538, Korea; (W.C.P.); (K.Y.K.)
| | - Moon Young Lee
- Department of Physiology, Digestive Disease Research Institute, and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan 54538, Korea; (M.S.K.); (H.S.C.); (M.W.); (J.M.)
- Correspondence: ; Tel.: +82-10-9437-6774
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28
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Comprehensive Analysis of a circRNA-miRNA-mRNA Network to Reveal Potential Inflammation-Related Targets for Gastric Adenocarcinoma. Mediators Inflamm 2020; 2020:9435608. [PMID: 32801999 PMCID: PMC7416288 DOI: 10.1155/2020/9435608] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer (GC) is the most common malignancy of the stomach. This study was aimed at elucidating the regulatory network of circRNA-miRNA-mRNA and identifying the precise inflammation-related targets in GC. The expression profiles of GSE83521, GSE78091, and GSE33651 were obtained from the GEO database. Interactions between miRNAs and circRNAs were investigated by the Circular RNA Interactome, and targets of miRNAs were predicted with miRTarBase. Then, a circRNA/miRNA/mRNA regulatory network was constructed. Also, functional enrichment analysis of selected differentially expressed genes (DEGs) was performed. The inflammation-/GC-related targets were collected in the GeneCards and GenLiP3 database, respectively. And a protein-protein interaction (PPI) network of DE mRNAs was constructed with STRING and Cytoscape to identify hub genes. The genetic alterations, neighboring gene networks, expression levels, and the poor prognosis of hub genes were investigated in cBioPortal, Oncomine, and Human Protein Atlas databases and Kaplan-Meier plotter, respectively. A total of 10 DE miRNAs and 33 DEGs were identified. The regulatory network contained 26 circRNAs, 10 miRNAs, and 1459 mRNAs. Functional enrichment analysis revealed that the selected 33 DEGs were involved in negative regulation of fat cell differentiation, response to wounding, extracellular matrix- (ECM-) receptor interaction, and regulation of cell growth pathways. THBS1, FN1, CALM1, COL4A1, CTGF, and IGFBP5 were selected as inflammation-related hub genes of GC in the PPI network. The genetic alterations in these hub genes were related to amplification and missense mutations. Furthermore, the genes RYR2, ERBB2, PI3KCA, and HELZ2 were connected to hub genes in this study. The hub gene levels in clinical specimens were markedly upregulated in GC tissues and correlated with poor overall survival (OS). Our results suggest that THBS1, FN1, CALM1, COL4A1, CTGF, and IGFBP5 were associated with the pathogenesis of gastric carcinogenesis and may serve as biomarkers and inflammation-related targets for GC.
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29
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Feng D, Gerarduzzi C. Emerging Roles of Matricellular Proteins in Systemic Sclerosis. Int J Mol Sci 2020; 21:E4776. [PMID: 32640520 PMCID: PMC7369781 DOI: 10.3390/ijms21134776] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/11/2020] [Accepted: 06/13/2020] [Indexed: 02/07/2023] Open
Abstract
Systemic sclerosis is a rare chronic heterogenous disease that involves inflammation and vasculopathy, and converges in end-stage development of multisystem tissue fibrosis. The loss of tight spatial distribution and temporal expression of proteins in the extracellular matrix (ECM) leads to progressive organ stiffening, which is a hallmark of fibrotic disease. A group of nonstructural matrix proteins, known as matricellular proteins (MCPs) are implicated in dysregulated processes that drive fibrosis such as ECM remodeling and various cellular behaviors. Accordingly, MCPs have been described in the context of fibrosis in sclerosis (SSc) as predictive disease biomarkers and regulators of ECM synthesis, with promising therapeutic potential. In this present review, an informative summary of major MCPs is presented highlighting their clear correlations to SSc- fibrosis.
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Affiliation(s)
- Daniel Feng
- Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada;
- Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, QC H1T 2M4, Canada
| | - Casimiro Gerarduzzi
- Département de Pharmacologie et Physiologie, Faculté de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada;
- Centre de recherche de l’Hôpital Maisonneuve-Rosemont, Faculté de Médecine, Centre affilié à l’Université de Montréal, Montréal, QC H1T 2M4, Canada
- Département de Médecine, Faculté de Médecine, Université de Montréal, Montréal, QC H3T 1J4, Canada
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30
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Taylor CP, Harris EW. Analgesia with Gabapentin and Pregabalin May Involve N-Methyl-d-Aspartate Receptors, Neurexins, and Thrombospondins. J Pharmacol Exp Ther 2020; 374:161-174. [DOI: 10.1124/jpet.120.266056] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/17/2020] [Indexed: 11/22/2022] Open
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31
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Yagi H, Nishigori M, Murakami Y, Osaki T, Muto S, Iba Y, Minatoya K, Ikeda Y, Ishibashi-Ueda H, Morisaki T, Ogino H, Tanaka H, Sasaki H, Matsuda H, Minamino N. Discovery of novel biomarkers for atherosclerotic aortic aneurysm through proteomics-based assessment of disease progression. Sci Rep 2020; 10:6429. [PMID: 32286426 PMCID: PMC7156426 DOI: 10.1038/s41598-020-63229-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 03/25/2020] [Indexed: 01/21/2023] Open
Abstract
Since aortic aneurysms (AAs) are mostly asymptomatic, but they have a high mortality rate upon rupture, their detection and progression evaluation are clinically important issues. To discover diagnostic biomarkers for AA, we performed proteome analysis of aortic media from patients with thoracic atherosclerotic AA (TAAA), comparing protein levels between the aneurysm and normal tissue areas. After hierarchical clustering analysis of the proteome analysis data, tissue samples were classified into three groups, regardless of morphological features. This classification was shown to reflect disease progression stage identified by pathological examination. This proteomics-based staging system enabled us to identify more significantly altered proteins than the morphological classification system. In subsequent data analysis, Niemann-Pick disease type C2 protein (NPC2) and insulin-like growth factor-binding protein 7 (IGFBP7) were selected as novel biomarker candidates for AA and were compared with the previously reported biomarker, thrombospondin 1 (THBS1). Blood concentrations of NPC2 and IGFBP7 were significantly increased, while THBS1 levels were decreased in TAAA and abdominal atherosclerotic AA patients. Receiver operating characteristic analysis of AA patients and healthy controls showed that NPC2 and IGFBP7 have higher specificity and sensitivity than THBS1. Thus, NPC2 and IGFBP7 are promising biomarkers for the detection and progression evaluation of AA.
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Affiliation(s)
- Hiroaki Yagi
- Department of Molecular Pharmacology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Mitsuhiro Nishigori
- Department of Molecular Pharmacology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan.,Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Yusuke Murakami
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Tsukasa Osaki
- Department of Molecular Pharmacology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Sayaka Muto
- Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.,Department of Pathology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Yutaka Iba
- Department of Vascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Kenji Minatoya
- Department of Vascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Yoshihiko Ikeda
- Department of Pathology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Hatsue Ishibashi-Ueda
- Department of Pathology, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Takayuki Morisaki
- Department of Bioscience and Genetics, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan
| | - Hitoshi Ogino
- Department of Vascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Hiroshi Tanaka
- Department of Vascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Hiroaki Sasaki
- Department of Vascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Hitoshi Matsuda
- Department of Vascular Surgery, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan
| | - Naoto Minamino
- Department of Molecular Pharmacology, National Cerebral and Cardiovascular Center Research Institute, Suita, Osaka, Japan. .,Omics Research Center, National Cerebral and Cardiovascular Center, Suita, Osaka, Japan.
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El-Awaad E, Pryymachuk G, Fried C, Matthes J, Isensee J, Hucho T, Neiss WF, Paulsson M, Herzig S, Zaucke F, Pietsch M. Direct, gabapentin-insensitive interaction of a soluble form of the calcium channel subunit α 2δ-1 with thrombospondin-4. Sci Rep 2019; 9:16272. [PMID: 31700036 PMCID: PMC6838084 DOI: 10.1038/s41598-019-52655-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 10/21/2019] [Indexed: 12/31/2022] Open
Abstract
The α2δ‐1 subunit of voltage-gated calcium channels binds to gabapentin and pregabalin, mediating the analgesic action of these drugs against neuropathic pain. Extracellular matrix proteins from the thrombospondin (TSP) family have been identified as ligands of α2δ‐1 in the CNS. This interaction was found to be crucial for excitatory synaptogenesis and neuronal sensitisation which in turn can be inhibited by gabapentin, suggesting a potential role in the pathogenesis of neuropathic pain. Here, we provide information on the biochemical properties of the direct TSP/α2δ-1 interaction using an ELISA-style ligand binding assay. Our data reveal that full-length pentameric TSP-4, but neither TSP-5/COMP of the pentamer-forming subgroup B nor TSP-2 of the trimer-forming subgroup A directly interact with a soluble variant of α2δ-1 (α2δ-1S). Interestingly, this interaction is not inhibited by gabapentin on a molecular level and is not detectable on the surface of HEK293-EBNA cells over-expressing α2δ‐1 protein. These results provide biochemical evidence that supports a specific role of TSP-4 among the TSPs in mediating the binding to neuronal α2δ‐1 and suggest that gabapentin does not directly target TSP/α2δ-1 interaction to alleviate neuropathic pain.
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Affiliation(s)
- Ehab El-Awaad
- Institute II for Pharmacology, Centre of Pharmacology, Medical Faculty, University of Cologne, Gleueler Str. 24, D-50931, Cologne, Germany.,Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
| | - Galyna Pryymachuk
- Department of Anatomy I, Medical Faculty, University of Cologne, Kerpener Str. 62, D-50937, Cologne, Germany
| | - Cora Fried
- Institute II for Pharmacology, Centre of Pharmacology, Medical Faculty, University of Cologne, Gleueler Str. 24, D-50931, Cologne, Germany
| | - Jan Matthes
- Institute II for Pharmacology, Centre of Pharmacology, Medical Faculty, University of Cologne, Gleueler Str. 24, D-50931, Cologne, Germany
| | - Jörg Isensee
- Experimental Anaesthesiology and Pain Research, Department of Anaesthesiology and Intensive Care Medicine, Medical Faculty, University of Cologne, Robert-Koch-Str. 10, D-50931, Cologne, Germany
| | - Tim Hucho
- Experimental Anaesthesiology and Pain Research, Department of Anaesthesiology and Intensive Care Medicine, Medical Faculty, University of Cologne, Robert-Koch-Str. 10, D-50931, Cologne, Germany
| | - Wolfram F Neiss
- Department of Anatomy I, Medical Faculty, University of Cologne, Kerpener Str. 62, D-50937, Cologne, Germany
| | - Mats Paulsson
- Institute for Biochemistry II, Centre for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, D-50931, Cologne, Germany.,Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Robert-Koch-Str. 21, D-50931, Cologne, Germany
| | - Stefan Herzig
- Institute II for Pharmacology, Centre of Pharmacology, Medical Faculty, University of Cologne, Gleueler Str. 24, D-50931, Cologne, Germany.,President of TH Köln, TH Köln (University of Applied Sciences), Claudiusstr. 1, D-50678, Cologne, Germany
| | - Frank Zaucke
- Institute for Biochemistry II, Centre for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, D-50931, Cologne, Germany.,Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopedic University Hospital, Friedrichsheim gGmbH, Marienburgstr. 2, D-60528, Frankfurt/Main, Germany
| | - Markus Pietsch
- Institute II for Pharmacology, Centre of Pharmacology, Medical Faculty, University of Cologne, Gleueler Str. 24, D-50931, Cologne, Germany.
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Hoesl C, Fröhlich T, Hundt JE, Kneitz H, Goebeler M, Wolf R, Schneider MR, Dahlhoff M. The transmembrane protein LRIG2 increases tumor progression in skin carcinogenesis. Mol Oncol 2019; 13:2476-2492. [PMID: 31580518 PMCID: PMC6822252 DOI: 10.1002/1878-0261.12579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 09/18/2019] [Accepted: 10/01/2019] [Indexed: 01/23/2023] Open
Abstract
Over the last few decades, the number of cases of non‐melanoma skin cancer (NMSC) has risen to over 3 million cases every year worldwide. Members of the ERBB receptor family are important regulators of skin development and homeostasis and, when dysregulated, contribute to skin pathogenesis. In this study, we investigated leucine‐rich repeats and immunoglobulin‐like domains 2 (LRIG2), a transmembrane protein involved in feedback loop regulation of the ERBB receptor family during NMSC. LRIG2 was identified to be up‐regulated in various types of squamous cell carcinoma (SCC), but little is known about LRIG2 in cutaneous SCC (cSCC). To investigate the function of LRIG2 in cSCC in vivo, we generated a skin‐specific LRIG2 overexpressing transgenic mouse line (LRIG2‐TG) using the Tet‐Off system. We employed the 7,12‐dimethylbenz(a)anthracene/12‐O‐tetra‐decanoylphorbol‐13‐acetate (DMBA/TPA) two‐stage chemical carcinogenesis model and analyzed the skin during homeostasis and tumorigenesis. LRIG2‐TG mice did not exhibit alterations in skin development or homeostasis but showed an interaction between LRIG2 and thrombospondin‐1, which is often involved in angiogenesis and tumorigenesis. However, during carcinogenesis, transgenic animals showed significantly increased tumor progression and a more rapid development of cSCC. This was accompanied by changes in the ERBB system. After a single TPA application, inflammation of the epidermis was enhanced during LRIG2 overexpression. In human skin samples, LRIG2 expression was identified in the basal layer of the epidermis and in hair follicles of normal skin, but also in cSCC samples. In conclusion, epidermal LRIG2 excess is associated with activated EGFR/ERBB4‐MAPK signaling and accelerated tumor progression in experimentally induced NMSC, suggesting LRIG2 as a potential oncoprotein in skin.
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Affiliation(s)
- Christine Hoesl
- Institute of Molecular Animal Breeding and BiotechnologyGene CenterLMU MünchenGermany
| | - Thomas Fröhlich
- Laboratory for Functional Genome Analysis (LAFUGA)Gene CenterLMU MünchenGermany
| | - Jennifer E. Hundt
- Lübeck Institute for Experimental DermatologyUniversität zu LübeckGermany
| | - Hermann Kneitz
- Klinik und Poliklinik für Dermatologie, Venerologie und AllergologieUniversitätsklinikum WürzburgGermany
| | - Matthias Goebeler
- Klinik und Poliklinik für Dermatologie, Venerologie und AllergologieUniversitätsklinikum WürzburgGermany
| | - Ronald Wolf
- Department of Dermatology und AllergologyPhilipps UniversityMarburgGermany
| | - Marlon R. Schneider
- Institute of Molecular Animal Breeding and BiotechnologyGene CenterLMU MünchenGermany
| | - Maik Dahlhoff
- Institute of Molecular Animal Breeding and BiotechnologyGene CenterLMU MünchenGermany
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Ansari H, Mohammadi-Asl J, Hajjari M, Tahmasebi-Birgani M, Kollaee A, Jassemi-Zergani F, Vakili-Hajiagha A. Exome sequencing revealed a p.G299R mutation in the COMP gene in an Iranian family suffering from pseudoachondroplasia. J Gene Med 2019; 21:e3103. [PMID: 31177591 DOI: 10.1002/jgm.3103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 05/18/2019] [Accepted: 05/31/2019] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND Short-stature (SS) is multifactorial pathologic condition that originates from either genetic or environmental factors. The diagnosis is based on family history, clinical findings, radiological examination and genetic analysis. A variety of genes have been reported for SS, among which FGFR-3 was the main gene in achondroplasia and hypochondroplasia. In other forms of SS, the gene involved varies from one patient to another. Whole exome sequencing (WES) and comparative genomic hybridization (CGH) have recently introduced a growing body of genes annually. The present study performed a WES analysis on an Iranian family suffering from an inherited form of SS aiming to diagnose the causative gene. The father and all of his four sons were diagnosed as SS. METHODS The blood samples were collected from the proband and his available family members. Genomic DNA was extracted using salting-out method. The DNA of the proband was analyzed using WES and confirmed through polymerase chain reaction (PCR)-sequencing. The WES-extracted variant was evaluated in silico using software aiming to determine whether this nucleotide change is pathogenic. The presence of the variant was traced in other affected family members using PCR-sequencing. RESULTS Following segregation analysis, variant c.896 G>A of the COMP gene was found in all of the affected individuals in a heterozygous form. This variant resulted in substitution of glycine 299 with arginine and was previously predicted as pathogenic in the Human Gene Mutation Database dataset, although it represents the first report in Iran. CONCLUSIONS The findings of the present study suggest consideration of the c.896 G>A variant of the COMP gene with respect to the genetic counseling of inherited skeletal dysplasia in Iran.
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Affiliation(s)
- Hossein Ansari
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Javad Mohammadi-Asl
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Noor Genetics Laboratory, Ahvaz, Iran
| | - Mohammadreza Hajjari
- Department of Genetics, Faculty of Sciences, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Maryam Tahmasebi-Birgani
- Department of Medical Genetics, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Farzad Jassemi-Zergani
- Research Institute for Infectious Disease of Digestive System, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Laengsri V, Nantasenamat C, Schaduangrat N, Nuchnoi P, Prachayasittikul V, Shoombuatong W. TargetAntiAngio: A Sequence-Based Tool for the Prediction and Analysis of Anti-Angiogenic Peptides. Int J Mol Sci 2019; 20:E2950. [PMID: 31212918 PMCID: PMC6628072 DOI: 10.3390/ijms20122950] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/13/2019] [Accepted: 06/14/2019] [Indexed: 11/21/2022] Open
Abstract
Cancer remains one of the major causes of death worldwide. Angiogenesis is crucial for the pathogenesis of various human diseases, especially solid tumors. The discovery of anti-angiogenic peptides is a promising therapeutic route for cancer treatment. Thus, reliably identifying anti-angiogenic peptides is extremely important for understanding their biophysical and biochemical properties that serve as the basis for the discovery of new anti-cancer drugs. This study aims to develop an efficient and interpretable computational model called TargetAntiAngio for predicting and characterizing anti-angiogenic peptides. TargetAntiAngio was developed using the random forest classifier in conjunction with various classes of peptide features. It was observed via an independent validation test that TargetAntiAngio can identify anti-angiogenic peptides with an average accuracy of 77.50% on an objective benchmark dataset. Comparisons demonstrated that TargetAntiAngio is superior to other existing methods. In addition, results revealed the following important characteristics of anti-angiogenic peptides: (i) disulfide bond forming Cys residues play an important role for inhibiting blood vessel proliferation; (ii) Cys located at the C-terminal domain can decrease endothelial formatting activity and suppress tumor growth; and (iii) Cyclic disulfide-rich peptides contribute to the inhibition of angiogenesis and cell migration, selectivity and stability. Finally, for the convenience of experimental scientists, the TargetAntiAngio web server was established and made freely available online.
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Affiliation(s)
- Vishuda Laengsri
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
| | - Chanin Nantasenamat
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
| | - Nalini Schaduangrat
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
| | - Pornlada Nuchnoi
- Department of Clinical Microscopy, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
| | - Watshara Shoombuatong
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand.
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Abstract
The main strategies used by pathogenic bacteria to infect eukaryotic tissue include their adherence to cells and the extracellular matrix (ECM), the subsequent colonization and invasion as well as the evasion of immune defences. A variety of structurally and functionally characterized adhesins and binding proteins of gram-positive bacteria facilitate these processes by specifically recognizing and interacting with various components of the host ECM, including different collagens, fibronectin and other macromolecules. The ECM affects the cellular physiology of our body and is critical for adhesion, migration, proliferation, and differentiation of many host cell types, but also provides the support for infiltrating pathogens, particularly under conditions of injury and trauma. Moreover, microbial binding to a variety of adhesive components in host tissue fluids leads to structural and/or functional alterations of host proteins and to the activation of cellular mechanisms that influence tissue and cell invasion of pathogens. Since the diverse interactions of gram-positive bacteria with the ECM represent important pathogenicity mechanisms, their characterization not only allows a better understanding of microbial invasion but also provides clues for the design of novel therapeutic strategies to manage infectious diseases.
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37
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Dong H, Zhou Y, Wang Y, Zhou Q, Zhang Y, Gan X, Luo Y, Li R. The protective role of intermedin in promoting angiogenesis during renal fibrosis. Gene 2019; 688:34-43. [DOI: 10.1016/j.gene.2018.11.057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 10/09/2018] [Accepted: 11/16/2018] [Indexed: 01/12/2023]
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38
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Timklay W, Magerd S, Sato C, Somrit M, Watthammawut A, Senarai T, Weerachatyanukul W, Kitajima K, Asuvapongpatana S. N-linked mannose glycoconjugates on shrimp thrombospondin, pmTSP-II, and their involvement in the sperm acrosome reaction. Mol Reprod Dev 2019; 86:440-449. [PMID: 30740837 DOI: 10.1002/mrd.23122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/25/2019] [Accepted: 01/28/2019] [Indexed: 12/22/2022]
Abstract
Glycoconjugates in egg extracellular matrices are known to serve several functions in reproductive processes. Here, the presence of N-linked mannose (Man) glycoconjugates on shrimp thrombospondin ( pmTSP-II) and their physiological functions were investigated in the black tiger shrimp Penaeus monodon. A molecular analysis of pmTSP-II demonstrated anchorage sites for N-linked glycans in both the chitin-binding and TSP3 domains. The presence of Man residues was verified by concanavalin A lectin histochemistry on the purified fraction of pmTSP-II (250 kDa with protease inhibitor). The function of the Man glycoconjugates was evident by the Con A interference with the pmTSP-II-induced acrosome reaction (AR) as well as by the ability to recover the induction of the AR by the inclusion of Mans in the treatment mixture. In addition, the recombinant proteins of the three signature pmTSP-II domains expressed in E. coli (lacking glycosylation) and mannosidase-treated pmTSP-II showed a minimal ability to initiate the AR response. Together, these results provide evidence of the pivotal role that Man-linked pmTSP-II plays in modulating the shrimp sperm AR, a novel role for a TSP family protein in shrimp reproductive biology.
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Affiliation(s)
- Wauranittha Timklay
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Sirilug Magerd
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand.,Department of Basic Medical Science, Faculty of Medicine Vajira Hospital, Navamindratiraj University, Bangkok, Thailand
| | - Chihiro Sato
- Bioscience and Biotechnology Center & Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
| | - Monsicha Somrit
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Atthaboon Watthammawut
- Department of Anatomy, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | - Thanyaporn Senarai
- Department of Anatomy, Faculty of Science, Mahidol University, Bangkok, Thailand
| | | | - Ken Kitajima
- Bioscience and Biotechnology Center & Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, Japan
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Binsker U, Kohler TP, Hammerschmidt S. Contribution of Human Thrombospondin-1 to the Pathogenesis of Gram-Positive Bacteria. J Innate Immun 2019; 11:303-315. [PMID: 30814475 PMCID: PMC6738282 DOI: 10.1159/000496033] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022] Open
Abstract
A successful colonization of different compartments of the human host requires multifactorial contacts between bacterial surface proteins and host factors. Extracellular matrix proteins and matricellular proteins such as thrombospondin-1 play a pivotal role as adhesive substrates to ensure a strong interaction with pathobionts like the Gram-positive Streptococcus pneumoniae and Staphylococcus aureus. The human glycoprotein thrombospondin-1 is a component of the extracellular matrix and is highly abundant in the bloodstream during bacteremia. Human platelets secrete thrombospondin-1, which is then acquired by invading pathogens to facilitate colonization and immune evasion. Gram-positive bacteria express a broad spectrum of surface-exposed proteins, some of which also recognize thrombospondin-1. This review highlights the importance of thrombospondin-1 as an adhesion substrate to facilitate colonization, and we summarize the variety of thrombospondin-1-binding proteins of S. pneumoniae and S. aureus.
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Affiliation(s)
- Ulrike Binsker
- Center for Functional Genomics of Microbes, Department of Molecular Genetics and Infection Biology, Interfaculty Institute for Genetics and Functional Genomics, Greifswald University, Greifswald, Germany
- Department of Microbiology, NYU Langone Health, Alexandria Center for the Life Sciences, New York City, New York, USA
| | - Thomas P Kohler
- Center for Functional Genomics of Microbes, Department of Molecular Genetics and Infection Biology, Interfaculty Institute for Genetics and Functional Genomics, Greifswald University, Greifswald, Germany
| | - Sven Hammerschmidt
- Center for Functional Genomics of Microbes, Department of Molecular Genetics and Infection Biology, Interfaculty Institute for Genetics and Functional Genomics, Greifswald University, Greifswald, Germany,
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Abstract
Voltage-gated calcium (CaV) channels are associated with β and α2δ auxiliary subunits. This review will concentrate on the function of the α2δ protein family, which has four members. The canonical role for α2δ subunits is to convey a variety of properties on the CaV1 and CaV2 channels, increasing the density of these channels in the plasma membrane and also enhancing their function. More recently, a diverse spectrum of non-canonical interactions for α2δ proteins has been proposed, some of which involve competition with calcium channels for α2δ or increase α2δ trafficking and others which mediate roles completely unrelated to their calcium channel function. The novel roles for α2δ proteins which will be discussed here include association with low-density lipoprotein receptor-related protein 1 (LRP1), thrombospondins, α-neurexins, prion proteins, large conductance (big) potassium (BK) channels, and N-methyl-d-aspartate (NMDA) receptors.
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Affiliation(s)
- Annette C Dolphin
- Department of Neuroscience, Physiology and Pharmacology, University College London, Gower Street, London, WC1E 6BT, UK
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Seif K, Alidzanovic L, Tischler B, Ibrahim N, Zagrapan B, Rauscher S, Salzmann M, Hell L, Mauracher LM, Budde U, Schmid JA, Jilma B, Pabinger I, Assinger A, Starlinger P, Brostjan C. Neutrophil-Mediated Proteolysis of Thrombospondin-1 Promotes Platelet Adhesion and String Formation. Thromb Haemost 2018; 118:2074-2085. [PMID: 30419595 PMCID: PMC6298231 DOI: 10.1055/s-0038-1675229] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Thrombospondin-1 (TSP-1) is primarily expressed by platelets and endothelial cells (ECs) and rapidly released upon their activation. It functions in haemostasis as a bridging molecule in platelet aggregation, by promoting platelet adhesion to collagen and by protecting von Willebrand factor strings from degradation. In blood of patients undergoing surgery and in co-cultures of neutrophils with platelets or ECs, we observed proteolysis of the 185 kDa full-length TSP-1 to a 160-kDa isoform. We hypothesized that TSP-1 processing may alter its haemostatic properties. Selective enzyme inhibitors in co-cultures revealed that neutrophil proteases elastase and cathepsin G mediate TSP-1 processing. The cut site of cathepsin G was mapped to TSP-1 amino acids R237/T238 by Edman sequencing. Formation of neutrophil extracellular traps protected TSP-1 from complete degradation and promoted controlled processing to the 160-kDa isoform. Haemostatic properties were tested by platelet aggregation, adhesion, coagulation and string formation under flow. Platelets from TSP-1 deficient mice did not differ from wild-type in platelet aggregation but showed severe impairment of platelet adhesion to collagen and string formation under flow. Reconstitution experiments revealed that the 160-kDa TSP-1 isoform was markedly more potent than the 185-kDa full-length molecule in restoring function. Thus, TSP-1 processing by neutrophil proteases yields a 160-kDa isoform which shows enhanced potency to promote platelet adhesion and string formation. This finding reveals a novel mechanism of neutrophil-mediated thrombus formation and provides first evidence for the impact of TSP-1 proteolysis on its haemostatic properties.
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Affiliation(s)
- Katharina Seif
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
| | - Lejla Alidzanovic
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
| | - Barbara Tischler
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
| | - Nahla Ibrahim
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
| | - Branislav Zagrapan
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
| | - Sabine Rauscher
- Core Facility Imaging, Medical University of Vienna, Vienna, Austria
| | - Manuel Salzmann
- Centre for Physiology and Pharmacology, Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Lena Hell
- Clinical Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Lisa-Marie Mauracher
- Clinical Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | | | - Johannes A Schmid
- Centre for Physiology and Pharmacology, Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, Vienna, Austria
| | - Bernd Jilma
- Department of Clinical Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Ingrid Pabinger
- Clinical Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
| | - Alice Assinger
- Centre for Physiology and Pharmacology, Institute of Physiology, Medical University of Vienna, Vienna, Austria
| | - Patrick Starlinger
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
| | - Christine Brostjan
- Department of Surgery, Surgical Research Laboratory, Medical University of Vienna, Vienna, Austria
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Fossati G, Pozzi D, Canzi A, Mirabella F, Valentino S, Morini R, Ghirardini E, Filipello F, Moretti M, Gotti C, Annis DS, Mosher DF, Garlanda C, Bottazzi B, Taraboletti G, Mantovani A, Matteoli M, Menna E. Pentraxin 3 regulates synaptic function by inducing AMPA receptor clustering via ECM remodeling and β1-integrin. EMBO J 2018; 38:embj.201899529. [PMID: 30396995 PMCID: PMC6315291 DOI: 10.15252/embj.201899529] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 09/12/2018] [Accepted: 10/01/2018] [Indexed: 12/20/2022] Open
Abstract
Control of synapse number and function in the developing central nervous system is critical to the formation of neural circuits. Astrocytes play a key role in this process by releasing factors that promote the formation of excitatory synapses. Astrocyte‐secreted thrombospondins (TSPs) induce the formation of structural synapses, which however remain post‐synaptically silent, suggesting that completion of early synaptogenesis may require a two‐step mechanism. Here, we show that the humoral innate immune molecule Pentraxin 3 (PTX3) is expressed in the developing rodent brain. PTX3 plays a key role in promoting functionally‐active CNS synapses, by increasing the surface levels and synaptic clustering of AMPA glutamate receptors. This process involves tumor necrosis factor‐induced protein 6 (TSG6), remodeling of the perineuronal network, and a β1‐integrin/ERK pathway. Furthermore, PTX3 activity is regulated by TSP1, which directly interacts with the N‐terminal region of PTX3. These data unveil a fundamental role of PTX3 in promoting the first wave of synaptogenesis, and show that interplay of TSP1 and PTX3 sets the proper balance between synaptic growth and synapse function in the developing brain.
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Affiliation(s)
- Giuliana Fossati
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy
| | - Davide Pozzi
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy.,Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Alice Canzi
- Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Filippo Mirabella
- Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Sonia Valentino
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy
| | - Raffaella Morini
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy
| | - Elsa Ghirardini
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy.,Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, University of Milano, Milano, Italy
| | - Fabia Filipello
- Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Milena Moretti
- Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, University of Milano, Milano, Italy
| | | | - Douglas S Annis
- Departments of Biomolecular Chemistry and Medicine, University of Wisconsin, Madison, WI, USA
| | - Deane F Mosher
- Departments of Biomolecular Chemistry and Medicine, University of Wisconsin, Madison, WI, USA
| | - Cecilia Garlanda
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy.,Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Barbara Bottazzi
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy.,Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Giulia Taraboletti
- Tumor Angiogenesis Unit, Department of Oncology, IRCCS-Istituto di Ricerche Farmacologiche Mario Negri, Bergamo, Italy
| | - Alberto Mantovani
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy.,Department of Biomedical Sciences Humanitas University, Milan, Italy
| | - Michela Matteoli
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy .,Institute of Neuroscience - CNR, Milano, Italy
| | - Elisabetta Menna
- Humanitas Clinical and Research Center - IRCCS, Rozzano, Milano, Italy .,Institute of Neuroscience - CNR, Milano, Italy
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43
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Posey KL, Coustry F, Hecht JT. Cartilage oligomeric matrix protein: COMPopathies and beyond. Matrix Biol 2018; 71-72:161-173. [PMID: 29530484 PMCID: PMC6129439 DOI: 10.1016/j.matbio.2018.02.023] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 02/27/2018] [Accepted: 02/27/2018] [Indexed: 02/06/2023]
Abstract
Cartilage oligomeric matrix protein (COMP) is a large pentameric glycoprotein that interacts with multiple extracellular matrix proteins in cartilage and other tissues. While, COMP is known to play a role in collagen secretion and fibrillogenesis, chondrocyte proliferation and mechanical strength of tendons, the complete range of COMP functions remains to be defined. COMPopathies describe pseudoachondroplasia (PSACH) and multiple epiphyseal dysplasia (MED), two skeletal dysplasias caused by autosomal dominant COMP mutations. The majority of the mutations are in the calcium binding domains and compromise protein folding. COMPopathies are ER storage disorders in which the retention of COMP in the chondrocyte ER stimulates overwhelming cellular stress. The retention causes oxidative and inflammation processes leading to chondrocyte death and loss of long bone growth. In contrast, dysregulation of wild-type COMP expression is found in numerous diseases including: fibrosis, cardiomyopathy and breast and prostate cancers. The most exciting clinical application is the use of COMP as a biomarker for idiopathic pulmonary fibrosis and cartilage degeneration associated osteoarthritis and rheumatoid and, as a prognostic marker for joint injury. The ever expanding roles of COMP in single gene disorders and multifactorial diseases will lead to a better understanding of its functions in ECM and tissue homeostasis towards the goal of developing new therapeutic avenues.
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Affiliation(s)
- Karen L Posey
- McGovern Medical School, UTHealth, Department of Pediatrics, United States.
| | - Francoise Coustry
- McGovern Medical School, UTHealth, Department of Pediatrics, United States
| | - Jacqueline T Hecht
- McGovern Medical School, UTHealth, Department of Pediatrics, United States; UTHealth, School of Dentistry, United States
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44
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Ramirez MU, Stirling ER, Emenaker NJ, Roberts DD, Soto-Pantoja DR. Thrombospondin-1 interactions regulate eicosanoid metabolism and signaling in cancer-related inflammation. Cancer Metastasis Rev 2018; 37:469-476. [PMID: 29909440 PMCID: PMC6295347 DOI: 10.1007/s10555-018-9737-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The metabolism of arachidonic acid and other polyunsaturated fatty acids produces eicosanoids, a family of biologically active lipids that are implicated in homeostasis and in several pathologies that involve inflammation. Inflammatory processes mediated by eicosanoids promote carcinogenesis by exerting direct effects on cancer cells and by affecting the tumor microenvironment. Therefore, understanding how eicosanoids mediate cancer progression may lead to better approaches and chemopreventive strategies for the treatment of cancer. The matricellular protein thrombospondin-1 is involved in processes that profoundly regulate inflammatory pathways that contribute to carcinogenesis and metastatic spread. This review focuses on interactions of thrombospondin-1 and eicosanoids in the microenvironment that promote carcinogenesis and how the microenvironment can be targeted for cancer prevention to increase curative responses of cancer patients.
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Affiliation(s)
- Manuel U Ramirez
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
- Department of Physiology & Pharmacology, Wake Forest University Health Sciences, Bethesda, MD, 20892, USA
| | - Elizabeth R Stirling
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA
- Department of Cancer Biology, Wake Forest University Health Sciences, Bethesda, MD, 20892, USA
| | - Nancy J Emenaker
- Nutritional Science Research Group, Division of Cancer Prevention, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - David D Roberts
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
| | - David R Soto-Pantoja
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA.
- Department of Physiology & Pharmacology, Wake Forest University Health Sciences, Bethesda, MD, 20892, USA.
- Department of Cancer Biology, Wake Forest University Health Sciences, Bethesda, MD, 20892, USA.
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
- Comprehensive Cancer Center Wake Forest School of Medicine, Winston-Salem, NC, 27157, USA.
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45
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Rusnati M, Borsotti P, Moroni E, Foglieni C, Chiodelli P, Carminati L, Pinessi D, Annis DS, Paiardi G, Bugatti A, Gori A, Longhi R, Belotti D, Mosher DF, Colombo G, Taraboletti G. The calcium-binding type III repeats domain of thrombospondin-2 binds to fibroblast growth factor 2 (FGF2). Angiogenesis 2018; 22:133-144. [PMID: 30168023 DOI: 10.1007/s10456-018-9644-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 08/16/2018] [Indexed: 12/13/2022]
Abstract
Thrombospondin (TSP)-1 and TSP-2 share similar structures and functions, including a remarkable antiangiogenic activity. We have previously demonstrated that a mechanism of the antiangiogenic activity of TSP-1 is the interaction of its type III repeats domain with fibroblast growth factor-2 (FGF2), affecting the growth factor bioavailability and angiogenic activity. Since the type III repeats domain is conserved in TSP-2, this study aimed at investigating whether also TSP-2 retained the ability to interact with FGF2. The FGF2 binding properties of TSP-1 and TSP-2 and their recombinant domains were analyzed by solid-phase binding and surface plasmon resonance assays. TSP-2 bound FGF2 with high affinity (Kd = 1.3 nM). TSP-2/FGF2 binding was inhibited by calcium and heparin. The FGF2-binding domain of TSP-2 was located in the type III repeats and the minimal interacting sequence was identified as the GVTDEKD peptide in repeat 3C, corresponding to KIPDDRD, the active sequence of TSP-1. A second putative FGF2 binding sequence was also identified in repeat 11C of both TSPs. Computational docking analysis predicted that both the TSP-2 and TSP-1-derived heptapeptides interacted with FGF2 with comparable binding properties. Accordingly, small molecules based on the TSP-1 active sequence blocked TSP-2/FGF2 interaction. Binding of TSP-2 to FGF2 impaired the growth factor ability to interact with its cellular receptors, since TSP-2-derived fragments prevented the binding of FGF2 to both heparin (used as a structural analog of heparan sulfate proteoglycans) and FGFR-1. These findings identify TSP-2 as a new FGF2 ligand that shares with TSP-1 the same molecular requirements for interaction with the growth factor and a comparable capacity to block FGF2 interaction with proangiogenic receptors. These features likely contribute to TSP-2 antiangiogenic and antineoplastic activity, providing the rationale for future therapeutic applications.
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Affiliation(s)
- Marco Rusnati
- Section of Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Patrizia Borsotti
- Tumor Angiogenesis Unit, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano, 87, Bergamo, 24126, Italy
| | | | - Chiara Foglieni
- Tumor Angiogenesis Unit, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano, 87, Bergamo, 24126, Italy.,Laboratory for Biomedical Neurosciences, Neurocenter of Southern Switzerland, Torricella-Taverne, Switzerland
| | - Paola Chiodelli
- Section of Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Laura Carminati
- Tumor Angiogenesis Unit, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano, 87, Bergamo, 24126, Italy
| | - Denise Pinessi
- Tumor Angiogenesis Unit, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano, 87, Bergamo, 24126, Italy
| | - Douglas S Annis
- Departments of Biomolecular Chemistry and Medicine, University of Wisconsin, Madison, WI, 53706, USA
| | - Giulia Paiardi
- Section of Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Antonella Bugatti
- Section of Experimental Oncology and Immunology, Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Alessandro Gori
- Istituto di Chimica del Riconoscimento Molecolare, Consiglio Nazionale delle Ricerche (ICRM-CNR), Milano, 20131, Italy
| | - Renato Longhi
- Istituto di Chimica del Riconoscimento Molecolare, Consiglio Nazionale delle Ricerche (ICRM-CNR), Milano, 20131, Italy
| | - Dorina Belotti
- Tumor Angiogenesis Unit, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano, 87, Bergamo, 24126, Italy
| | - Deane F Mosher
- Departments of Biomolecular Chemistry and Medicine, University of Wisconsin, Madison, WI, 53706, USA
| | - Giorgio Colombo
- Istituto di Chimica del Riconoscimento Molecolare, Consiglio Nazionale delle Ricerche (ICRM-CNR), Milano, 20131, Italy.,Dipartimento di Chimica, Università di Pavia, Pavia, 27100, Italy
| | - Giulia Taraboletti
- Tumor Angiogenesis Unit, Department of Oncology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Stezzano, 87, Bergamo, 24126, Italy.
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46
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Defective Flux of Thrombospondin-4 through the Secretory Pathway Impairs Cardiomyocyte Membrane Stability and Causes Cardiomyopathy. Mol Cell Biol 2018; 38:MCB.00114-18. [PMID: 29712757 DOI: 10.1128/mcb.00114-18] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/18/2018] [Indexed: 11/20/2022] Open
Abstract
Thrombospondins are stress-inducible secreted glycoproteins with critical functions in tissue injury and healing. Thrombospondin-4 (Thbs4) is protective in cardiac and skeletal muscle, where it activates an adaptive endoplasmic reticulum (ER) stress response, induces expansion of the ER, and enhances sarcolemmal stability. However, it is unclear if Thbs4 has these protective functions from within the cell, from the extracellular matrix, or from the secretion process itself. In this study, we generated transgenic mice with cardiac cell-specific overexpression of a secretion-defective mutant of Thbs4 to evaluate its exclusive intracellular and secretion-dependent functions. Like wild-type Thbs4, the secretion-defective mutant upregulates the adaptive ER stress response and expands the ER and intracellular vesicles in cardiomyocytes. However, only the secretion-defective Thbs4 mutant produces cardiomyopathy with sarcolemmal weakness and rupture that is associated with reduced adhesion-forming glycoproteins in the membrane. Similarly, deletion of Thbs4 in the mdx mouse model of Duchenne muscular dystrophy enhances cardiomyocyte membrane instability and cardiomyopathy. Finally, overexpression of the secretion-defective Thbs4 mutant in Drosophila, but not wild-type Thbs4, impaired muscle function and sarcomere alignment. These results suggest that transit through the secretory pathway is required for Thbs4 to augment sarcolemmal stability, while ER stress induction and vesicular expansion mediated by Thbs4 are exclusively intracellular processes.
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47
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Rogers NM, Ghimire K, Calzada MJ, Isenberg JS. Matricellular protein thrombospondin-1 in pulmonary hypertension: multiple pathways to disease. Cardiovasc Res 2018; 113:858-868. [PMID: 28472457 DOI: 10.1093/cvr/cvx094] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 05/03/2017] [Indexed: 12/24/2022] Open
Abstract
Matricellular proteins are secreted molecules that have affinities for both extracellular matrix and cell surface receptors. Through interaction with structural proteins and the cells that maintain the matrix these proteins can alter matrix strength. Matricellular proteins exert control on cell activity primarily through engagement of membrane receptors that mediate outside-in signaling. An example of this group is thrombospondin-1 (TSP1), first identified as a component of the secreted product of activated platelets. As a result, TSP1 was initially studied in relation to coagulation, growth factor signaling and angiogenesis. More recently, TSP1 has been found to alter the effects of the gaseous transmitter nitric oxide (NO). This latter capacity has provided motivation to study TSP1 in diseases associated with loss of NO signaling as observed in cardiovascular disease and pulmonary hypertension (PH). PH is characterized by progressive changes in the pulmonary vasculature leading to increased resistance to blood flow and subsequent right heart failure. Studies have linked TSP1 to pre-clinical animal models of PH and more recently to clinical PH. This review will provide analysis of the vascular and non-vascular effects of TSP1 that contribute to PH, the experimental and translational studies that support a role for TSP1 in disease promotion and frame the relevance of these findings to therapeutic strategies.
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Affiliation(s)
- Natasha M Rogers
- Medicine, Westmead Clinical School, University of Sydney, Sydney, New South Wales 2145, Australia
| | - Kedar Ghimire
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Maria J Calzada
- Department of Medicine, Universidad Autónoma of Madrid, Diego de León, Hospital Universitario of the Princesa, 62?28006 Madrid, Spain
| | - Jeffrey S Isenberg
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
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48
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A novel mutation in exon 11 of COMP gene in a Chinese family with pseudoachondroplasia. Genes Dis 2018; 6:47-55. [PMID: 30906833 PMCID: PMC6411627 DOI: 10.1016/j.gendis.2018.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 02/18/2018] [Indexed: 12/14/2022] Open
Abstract
Pseudoachondroplasia (PSACH) is a relatively common skeletal dysplasia characterized by disproportionate short stature, joint laxity, early-onset osteoarthrosis, and dysplasia of the spine, epiphysis, and metaphysis. It is known as an autosomal dominant disease which results exclusively from mutations in the gene for Cartilage Oligomeric Matrix Protein (COMP). We have identified a five year old Chinese boy who was diagnosed as pseudoachondroplasia according to clinical manifestations and X-ray symptoms. His mother seems like another effected individual because of the apparent short stature. Genomic DNA was extracted from peripheral blood lymphocytes. DNA sequencing analysis of the COMP gene revealed a heterozygous mutation (c.1219 T > C,p.Cys407Arg) in the patient. His mother was also affected with the same genetic change. Mutations in COMP gene is proved to change the Cartilage Oligomeric Matrix Protein. This missense mutation (c.1219 T > C) has not been reported before and it is not belongs to polymorphism sites. Our results extend the spectrum of mutations in COMP gene leading to pseudoachondroplasia.
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Alternative transcription of a shorter, non-anti-angiogenic thrombospondin-2 variant in cancer-associated blood vessels. Oncogene 2018; 37:2573-2585. [PMID: 29467494 PMCID: PMC5945577 DOI: 10.1038/s41388-018-0129-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 11/27/2017] [Accepted: 11/30/2017] [Indexed: 12/12/2022]
Abstract
Thrombospondin-2 (TSP2) is an anti-angiogenic matricellular protein that inhibits tumor growth and angiogenesis. Tumor-associated blood vascular endothelial cells (BECs) were isolated from human invasive bladder cancers and from matched normal bladder tissue by immuno-laser capture microdissection. Exon expression profiling analyses revealed a particularly high expression of a short TSP2 transcript containing only the last 9 (3′) exons of the full-length TSP2 transcript. Using 5′ and 3′ RACE (rapid amplification of cDNA ends) and Sanger sequencing, we confirmed the existence of the shorter transcript of TSP2 (sTSP2) and determined its sequence which completely lacked the anti-angiogenic thrombospondin type 1 repeats domain. The largest open reading frame predicted within the transcript comprises 209 amino acids and matches almost completely the C-terminal lectin domain of full-length TSP2. We produced recombinant sTSP2 and found that unlike the full-length TSP2, sTSP2 did not inhibit vascular endothelial growth factor-A-induced proliferation of cultured human BECs, but in contrast when combined with TSP2 blocked the inhibitory effects of TSP2 on BEC proliferation. In vivo studies with stably transfected A431 squamous cell carcinoma cells revealed that full-length TSP2, but not sTSP2, inhibited tumor growth and angiogenesis. This study reveals that the transcriptional program of tumor stromal cells can change to transcribe a new version of an endogenous angiogenesis inhibitor that has lost its anti-angiogenic activity.
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50
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Molecular and proteomic insight into Notch1 characterization in hepatocellular carcinoma. Oncotarget 2018; 7:39609-39626. [PMID: 27167202 PMCID: PMC5129957 DOI: 10.18632/oncotarget.9203] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 04/10/2016] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC) ranks fifth in frequency worldwide amongst all human cancers causing one million deaths annually. Despite many promising treatment options, long-term prognosis remains dismal for the majority of patients who develop recurrence or present with advanced disease. Notch signaling is an evolutionarily conserved pathway crucial for the development and homeostasis of many organs including liver. Herein we showed that aberrant Notch1 is linked to HCC development, tumor recurrence and invasion, which might be mediated, at least in part, through the Notch1-E-Cadherin pathway. Collectively, these findings suggest that targeting Notch1 has important therapeutic value in hepatocellular carcinoma. In this regard, comparative analysis of the secretome of HepG2 and HepG2 Notch1 depleted cells identified novel secreted proteins related to Notch1 expression. Soluble E-Cadherin (sE-Cad) and Thrombospondin-1 (Thbs1) were further validated in human serum as potential biomarkers to predict response to Notch1 inhibitors for a tailored individualized therapy.
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