1
|
Zeng S, Zheng Z, Wei X, Chen L, Lin J, Liu M, Zheng K, Li W, Chen X, Ma J, Xiong Z, Yang L. Multiomics Analysis Unravels Alteration in Molecule and Pathways Involved in Nondiabetic Chronic Wounds. ACS OMEGA 2024; 9:20425-20436. [PMID: 38737053 PMCID: PMC11080021 DOI: 10.1021/acsomega.4c01335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 04/08/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024]
Abstract
The prevalence of chronic wounds (CW) continues to grow. A thorough knowledge of the mechanism of CW formation remains elusive due to a lack of relevant studies. Furthermore, most previous studies concentrated on diabetic ulcers with relatively few investigations on other types. We performed this multiomics study to investigate the proteomic and metabolomic changes in wound and surrounding tissue from a cohort containing 13 patients with nondiabetic CW. Differentially expressed proteins (DEPs) and metabolites (DEMs) were filtered out and analyzed through multiomic profiling. The DEPs were further confirmed with the use of parallel reaction monitoring. Compared with the surrounding tissue, there were 82 proteins and 214 metabolites altered significantly in wound tissue. The DEPs were mainly enriched in focal adhesion (FA), extracellular matrix-receptor interaction (ERI), and the PI3K-Akt (PA) signaling pathway. Moreover, the DEMs were significantly enriched in amino sugar and nucleotide sugar metabolism and biosynthesis of nucleotide sugar pathways. In correlation analysis, we discovered that the PA signaling pathway, as well as its upstream and downstream pathways, coenriched some DEPs and DEMs. Additionally, we found that FBLN1, FBLN5, and EFEMP1 (FBLN3) proteins dramatically elevated in wound tissue and connected with the above signaling pathways. This multiomics study found that changes in FA, ERI, and PA signaling pathways had an impact on the cellular activities and functions of wound tissue cells. Additionally, increased expression of those proteins in wound tissue may inhibit vascular and skin cell proliferation and degrade the extracellular matrix, which may be one of the causes of CW formation.
Collapse
Affiliation(s)
- Shuaidan Zeng
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
- Department
of Orthopedics, Shenzhen Children’s
Hospital, Yitian Road, Futian District, Shenzhen, Guangdong 518026 ,P. R. China
| | - Zijun Zheng
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| | - Xuerong Wei
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| | - Lianglong Chen
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| | - Jiabao Lin
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| | - Mengqian Liu
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| | - Kaize Zheng
- Department
of Orthopedics, Shenzhen Children’s
Hospital, Yitian Road, Futian District, Shenzhen, Guangdong 518026 ,P. R. China
| | - Weiqing Li
- Department
of Orthopedics, Shenzhen Children’s
Hospital, Yitian Road, Futian District, Shenzhen, Guangdong 518026 ,P. R. China
| | - Xiaodi Chen
- Department
of Orthopedics, Shenzhen Children’s
Hospital, Yitian Road, Futian District, Shenzhen, Guangdong 518026 ,P. R. China
| | - Jun Ma
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| | - Zhu Xiong
- Department
of Orthopedics, Shenzhen Children’s
Hospital, Yitian Road, Futian District, Shenzhen, Guangdong 518026 ,P. R. China
| | - Lei Yang
- Department
of Burns, Nanfang Hospital, Southern Medical
University, Jingxi Street, Baiyun District, Guangzhou, Guangdong 510515 ,P. R. China
| |
Collapse
|
2
|
Hall E, Alderfer L, Neu E, Saha S, Johandes E, Haas DM, Haneline LS, Hanjaya-Putra D. The Effects of Preeclamptic Milieu on Cord Blood Derived Endothelial Colony-Forming Cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.03.569585. [PMID: 38105991 PMCID: PMC10723349 DOI: 10.1101/2023.12.03.569585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Preeclampsia is one of the leading causes of infant and maternal mortality worldwide. Many infants born from preeclamptic pregnancies are born prematurely with higher risk of developing cardiovascular later in their life. A key mechanism by which these complications occur is through stress-induced dysfunction of endothelial progenitor cells (EPCs), including endothelial colony-forming cells (ECFCs). To gain insight into this, cord blood derived ECFCs isolated from preeclamptic pregnancies (PRECs) were analyzed and compared to their healthy counterparts. While PRECs preserve key endothelial markers, they upregulate several markers associated with oxidative stress and inflammatory response. Compared to ECFCs, PRECs also exhibit lower migratory behaviors and impaired angiogenic potential. Interestingly, treatment of neuropilin-1 can improve tube formation in vitro. Collectively, this study reports that preeclamptic milieu influence phenotypes and functionality of PRECs, which can be rejuvenated using exogenous molecules. Promising results from this study warrant future investigations on the prospect of the rejuvenated PRECs to improve lung function of infants born from preeclamptic pregnancies.
Collapse
Affiliation(s)
- Eva Hall
- Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame
| | - Laura Alderfer
- Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame
| | - Erin Neu
- Department of Obstetrics & Gynecology, Indiana University School of Medicine, Indianapolis, IN
| | - Sanjoy Saha
- Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame
| | - Ellie Johandes
- Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame
| | - David M. Haas
- Department of Obstetrics & Gynecology, Indiana University School of Medicine, Indianapolis, IN
| | - Laura S. Haneline
- Herman B Wells Center for Pediatric Research, Department of Pediatrics, Indiana University School of Medicine, Riley Hospital for Children at Indiana University Health, Indianapolis, IN
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN
- Department of Anatomy, Cell Biology, and Physiology, Indiana University School of Medicine, Indianapolis, IN
| | - Donny Hanjaya-Putra
- Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame
- Department of Obstetrics & Gynecology, Indiana University School of Medicine, Indianapolis, IN
| |
Collapse
|
3
|
Chen T, Li D, Wang Y, Shen X, Dong A, Dong C, Duan K, Ren J, Li W, Shu G, Yang J, Xie Y, Qian F, Zhou J. Loss of NDUFS1 promotes gastric cancer progression by activating the mitochondrial ROS-HIF1α-FBLN5 signaling pathway. Br J Cancer 2023; 129:1261-1273. [PMID: 37644092 PMCID: PMC10575981 DOI: 10.1038/s41416-023-02409-5] [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: 02/11/2023] [Revised: 08/09/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Recent studies suggested that NDUFS1 has an important role in human cancers; however, the effects of NDUFS1 on gastric cancer (GC) are still not fully understood. METHODS We confirmed that NDUFS1 is downregulated in GC cells through western blot immunohistochemistry and bioinformation analysis. The effect of NDUFS1 on GC was studied by CCK-8, colony formation, transwell assay in vitro and Mouse xenograft assay in vivo. Expression and subcellular localization of NDUFS1 and the content of mitochondrial reactive oxygen species (mROS) was observed by confocal reflectance microscopy. RESULTS Reduced expression of NDUFS1 was found in GC tissues and cell lines. Also, NDUFS1 overexpression inhibited GC cell proliferation, migration, and invasion in vitro as well as growth and metastasis in vivo. Mechanistically, NDUFS1 reduction led to the activation of the mROS-hypoxia-inducible factor 1α (HIF1α) signaling pathway. We further clarified that NDUFS1 reduction upregulated the expression of fibulin 5 (FBLN5), a transcriptional target of HIF1α, through activation of mROS-HIF1α signaling in GC cells. CONCLUSIONS The results of this study indicate that NDUFS1 downregulation promotes GC progression by activating an mROS-HIF1α-FBLN5 signaling pathway.
Collapse
Affiliation(s)
- Tao Chen
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Dongbao Li
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Yunliang Wang
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Xiaochun Shen
- Department of Respiratory Medicine, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Anqi Dong
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Chao Dong
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Kaipeng Duan
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Jiayu Ren
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Weikang Li
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Gege Shu
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Jiaoyang Yang
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China
| | - Yufeng Xie
- Department of Thoracic Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China.
| | - Fuliang Qian
- Center for Systems Biology, Suzhou Medical College of Soochow University, 215123, Suzhou, China.
- Medical Center of Soochow University, 215123, Suzhou, China.
- Jiangsu Province Engineering Research Center of Precision Diagnostics and Therapeutics Development, Soochow University, 215123, Suzhou, China.
| | - Jin Zhou
- Department of General Surgery, the First Affiliated Hospital of Soochow University, 215006, Suzhou, China.
| |
Collapse
|
4
|
Puertas-Umbert L, Almendra-Pegueros R, Jiménez-Altayó F, Sirvent M, Galán M, Martínez-González J, Rodríguez C. Novel pharmacological approaches in abdominal aortic aneurysm. Clin Sci (Lond) 2023; 137:1167-1194. [PMID: 37559446 PMCID: PMC10415166 DOI: 10.1042/cs20220795] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/05/2023] [Accepted: 07/28/2023] [Indexed: 08/11/2023]
Abstract
Abdominal aortic aneurysm (AAA) is a severe vascular disease and a major public health issue with an unmet medical need for therapy. This disease is featured by a progressive dilation of the abdominal aorta, boosted by atherosclerosis, ageing, and smoking as major risk factors. Aneurysm growth increases the risk of aortic rupture, a life-threatening emergency with high mortality rates. Despite the increasing progress in our knowledge about the etiopathology of AAA, an effective pharmacological treatment against this disorder remains elusive and surgical repair is still the unique available therapeutic approach for high-risk patients. Meanwhile, there is no medical alternative for patients with small aneurysms but close surveillance. Clinical trials assessing the efficacy of antihypertensive agents, statins, doxycycline, or anti-platelet drugs, among others, failed to demonstrate a clear benefit limiting AAA growth, while data from ongoing clinical trials addressing the benefit of metformin on aneurysm progression are eagerly awaited. Recent preclinical studies have postulated new therapeutic targets and pharmacological strategies paving the way for the implementation of future clinical studies exploring these novel therapeutic strategies. This review summarises some of the most relevant clinical and preclinical studies in search of new therapeutic approaches for AAA.
Collapse
Affiliation(s)
- Lídia Puertas-Umbert
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
| | | | - Francesc Jiménez-Altayó
- Department of Pharmacology, Therapeutics and Toxicology, School of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
- Neuroscience Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Marc Sirvent
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
- Departamento de Angiología y Cirugía Vascular del Hospital Universitari General de Granollers, Granollers, Barcelona, Spain
| | - María Galán
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
- Departamento de Ciencias Básicas de la Salud, Universidad Rey Juan Carlos, Alcorcón, Spain
| | - José Martínez-González
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
- Instituto de Investigaciones Biomédicas de Barcelona (IIBB-CSIC), Barcelona, Spain
| | - Cristina Rodríguez
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
- CIBER de Enfermedades Cardiovasculares, ISCIII, Madrid, Spain
| |
Collapse
|
5
|
Tang Q, Yu R, Wang Y, Xie F, Zhang H, Wu C, Fang M. Varied hypoxia adaptation patterns of embryonic brain at different development stages between Tibetan and Dwarf laying chickens. BMC Genomics 2023; 24:342. [PMID: 37344809 DOI: 10.1186/s12864-023-09457-4] [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: 02/10/2023] [Accepted: 06/15/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Tibetan chickens (Gallus gallus; TBCs), an indigenous breed distributed in the Qinghai-Tibet Plateau, are well adapted to the hypoxic environment. Currently, the molecular genetic basis of hypoxia adaptation in TBCs remains unclear. This study investigated hypoxia adaptation patterns of embryonic brain at different development stages by integrating analysis of the transcriptome with our previously published metabolome data in TBCs and Dwarf Laying Chickens (DLCs), a lowland chicken breed. RESULTS During hypoxia, the results revealed that 1334, 578, and 417 differentially expressed genes (DEGs) (|log2 fold change|>1, p-value < 0.05) on days 8, 12, and 18 of development, respectively between TBCs and DLCs. Gene Ontology (GO) and pathway analyses revealed that DEGs are mainly related to metabolic pathways, vessel development, and immune response under hypoxia. This is consistent with our metabolome data that TBCs have higher energy metabolism than DLCs during hypoxia. Some vital DEGs between TBCs and DLCs, such as EPAS1, VEGFD, FBP1, FBLN5, LDHA, and IL-6 which are involved in the HIF pathway and hypoxia regulation. CONCLUSION These results suggest varied adaptation patterns between TBCs and DLCs under hypoxia. Our study provides a basis for uncovering the molecular regulation mechanism of hypoxia adaptation in TBCs and a potential application of hypoxia adaptation research for other animals living on the Qinghai-Tibet Plateau, and may even contribute to the study of brain diseases caused by hypoxia.
Collapse
Affiliation(s)
- Qiguo Tang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China.
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China.
| | - Runjie Yu
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Yubei Wang
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Fuyin Xie
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Hao Zhang
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Changxin Wu
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China
| | - Meiying Fang
- Department of Animal Genetics and Breeding, National Engineering Laboratory for Animal Breeding, MOA Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, No.2 Yuanmingyuan West Road, Beijing, 100193, China.
| |
Collapse
|
6
|
Chai H, Qu H, He S, Song L, Yang Y, Huang H, Shi D. Zedoarondiol inhibits atherosclerosis by regulating monocyte migration and adhesion via CXCL12/CXCR4 pathway. Pharmacol Res 2022; 182:106328. [PMID: 35772647 DOI: 10.1016/j.phrs.2022.106328] [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: 04/26/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 10/17/2022]
Abstract
Atherosclerosis (AS) is an essential pathological changes of ischemic cardio-cerebrovascular disease, and monocyte migration and adhesion to endothelial cells are the critical pathological process in AS. Our previous studies demonstrated a beneficial effect of zedoarondiol in AS, but whether the mechanism is associated with monocyte migration and adhesion to endothelial cells remains unclear. In this study, we investigated whether the anti-atherosclerotic effects of zedoarondiol were associated with decreasing migration and adhesion of monocytes. The oil red O staining demonstrated that zedoarondiol ameliorated AS plaques in en face aorta and aortic root of apolipoprotein E gene knocked (apoE-/-) mice. In vitro, zedoarondiol decreased human monocytic macrophage-like cell line (THP-1) monocytes migration and adhesion to endothelial cells. Single-cell RNA sequencing analysis (scRNA-seq) in mice indicated that zedoarondiol decreased monocytes adhesion to endothelial cells by regulating CXC chemokine ligand 12/CXC chemokine receptor 4 (CXCL12/CXCR4) pathway, which was verified by Western blot of THP-1 monocytes;zedoarondiol also decreased the expressions of phosphoinositide 3-kinase (PI3K), protein kinase B (AKT) and nuclear factor-kappa B (NF/κB), the downstream proteins of CXCL12/CXCR4 pathway. In conclusion, zedoarondiol ameliorated AS plaque and inhibited monocyte migration and adhesion to endothelial cells via regulating CXCL12/CXCR4 pathway, suggesting that zedoarondiol might be a new promising drug for AS.
Collapse
Affiliation(s)
- Hua Chai
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Hua Qu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Shan He
- Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Lei Song
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yu Yang
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Hongbo Huang
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; Beijing University of Chinese Medicine, Beijing 100029, China
| | - Dazhuo Shi
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China.
| |
Collapse
|
7
|
The Synergistic Cooperation between TGF-β and Hypoxia in Cancer and Fibrosis. Biomolecules 2022; 12:biom12050635. [PMID: 35625561 PMCID: PMC9138354 DOI: 10.3390/biom12050635] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 03/10/2022] [Accepted: 04/14/2022] [Indexed: 12/24/2022] Open
Abstract
Transforming growth factor β (TGF-β) is a multifunctional cytokine regulating homeostasis and immune responses in adult animals and humans. Aberrant and overactive TGF-β signaling promotes cancer initiation and fibrosis through epithelial–mesenchymal transition (EMT), as well as the invasion and metastatic growth of cancer cells. TGF-β is a key factor that is active during hypoxic conditions in cancer and is thereby capable of contributing to angiogenesis in various types of cancer. Another potent role of TGF-β is suppressing immune responses in cancer patients. The strong tumor-promoting effects of TGF-β and its profibrotic effects make it a focus for the development of novel therapeutic strategies against cancer and fibrosis as well as an attractive drug target in combination with immune regulatory checkpoint inhibitors. TGF-β belongs to a family of cytokines that exert their function through signaling via serine/threonine kinase transmembrane receptors to intracellular Smad proteins via the canonical pathway and in combination with co-regulators such as the adaptor protein and E3 ubiquitin ligases TRAF4 and TRAF6 to promote non-canonical pathways. Finally, the outcome of gene transcription initiated by TGF-β is context-dependent and controlled by signals exerted by other growth factors such as EGF and Wnt. Here, we discuss the synergistic cooperation between TGF-β and hypoxia in development, fibrosis and cancer.
Collapse
|
8
|
Yan Y, Liu X, Li X, Zhou X, Yang C, Tian J, Pu J, Niu X. Effect of fibulin-5 on aldosterone-induced apoptosis in human ascending aortic smooth muscle cells. Exp Ther Med 2021; 22:896. [PMID: 34257709 PMCID: PMC8243313 DOI: 10.3892/etm.2021.10328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Accepted: 12/01/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the current study was to investigate the effect of aldosterone on apoptosis in human aortic smooth muscle cells (HA-VSMC) and to determine the role of fibulin-5 in the aldosterone-induced apoptosis of HA-VSMC cells. Through the construction of a fibulin-5 eukaryotic overexpression vector and a short hairpin RNA interference plasmid, fibulin-5 was overexpressed and silenced, respectively. The role of fibulin-5 in the aldosterone-induced apoptosis of HA-VSMC was subsequently determined. The overexpression of fibulin-5 inhibited the apoptosis of cells, particularly at low concentrations of aldosterone; a smaller effect on apoptosis was induced by high concentrations of aldosterone. fibulin-5 knockdown promoted the apoptosis of cells induced by high concentrations of aldosterone but had a smaller effect on the apoptosis of cells induced by low concentrations of aldosterone. Therefore, the results of the current study indicate that fibulin-5 inhibits the aldosterone-induced apoptosis of HA-VSMC cells and that this effect may be altered by changing the aldosterone concentration.
Collapse
Affiliation(s)
- Yongji Yan
- Department of Urology, Beijing University of Chinese Medicine Dongzhimen Hospital, Beijing 100700, P.R. China
| | - Xujie Liu
- Department of Neurosurgery, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Xuanchen Li
- Department of Neurosurgery, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Xuan Zhou
- Department of Neurosurgery, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Chaozhi Yang
- Department of Neurosurgery, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Jintao Tian
- Department of Neurosurgery, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Jun Pu
- Department of Neurosurgery, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China.,Department of Pneumology, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| | - Xiaoqun Niu
- Department of Pneumology, Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650101, P.R. China
| |
Collapse
|
9
|
Kim TH, Jeon WY, Ji Y, Park EJ, Yoon DS, Lee NH, Park SM, Mandakhbayar N, Lee JH, Lee HH, Kim HW. Electricity auto-generating skin patch promotes wound healing process by activation of mechanosensitive ion channels. Biomaterials 2021; 275:120948. [PMID: 34157562 DOI: 10.1016/j.biomaterials.2021.120948] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/20/2021] [Accepted: 05/29/2021] [Indexed: 12/14/2022]
Abstract
Electricity constitutes a natural biophysical component that preserves tissue homeostasis and modulates many biological processes, including the repair of damaged tissues. Wound healing involves intricate cellular events, such as inflammation, angiogenesis, matrix synthesis, and epithelialization whereby multiple cell types sense the environmental cues to rebuild the structure and functions. Here, we report that electricity auto-generating glucose-responsive enzymatic-biofuel-cell (EBC) skin patch stimulates the wound healing process. Rat wounded-skin model and in vitro cell cultures showed that EBC accelerated wound healing by modulating inflammation while stimulating angiogenesis, fibroblast fuctionality and matrix synthesis. Of note, EBC-activated cellular bahaviors were linked to the signalings involved with calcium influx, which predominantly dependent on the mechanosensitive ion channels, primarily Piezo1. Inhibition of Piezo1-receptor impaired the EBC-induced key functions of both fibroblasts and endothelial cells in the wound healing. This study highlights the significant roles of electricity played in wound healing through activated mechanosensitive ion channels and the calcium influx, and suggests the possibility of the electricity auto-generating EBC-based skin patch for use as a wound healing device.
Collapse
Affiliation(s)
- Tae-Hyun Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
| | - Won-Yong Jeon
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; School of Chemical Engineering, Biomedical Institute for Convergence, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yunseong Ji
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
| | - Eun Ju Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, #08-03 Innovis, 138634, Singapore
| | - Dong Suk Yoon
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
| | - Na-Hyun Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea
| | - Sung-Min Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Nandin Mandakhbayar
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea; Mechanobiology Dental Medicine Research Center, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea.
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; Department of Regenerative Dental Medicine, College of Dentistry, Dankook University, Cheonan, 31116, Republic of Korea; Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea; Mechanobiology Dental Medicine Research Center, Cheonan, 31116, Republic of Korea; UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea.
| |
Collapse
|
10
|
Becker J, Schwoch S, Zelent C, Sitte M, Salinas G, Wilting J. Transcriptome Analysis of Hypoxic Lymphatic Endothelial Cells Indicates Their Potential to Contribute to Extracellular Matrix Rearrangement. Cells 2021; 10:cells10051008. [PMID: 33923324 PMCID: PMC8145299 DOI: 10.3390/cells10051008] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/12/2021] [Accepted: 04/14/2021] [Indexed: 12/27/2022] Open
Abstract
Lymphedema (LE) affects millions of people worldwide. It is a chronic progressive disease with massive development of fibrosclerosis when untreated. There is no pharmacological treatment of lymphedema. The disease is associated with swelling of the interstitium of the affected organ, mostly arm or leg, impressive development of adipose tissue, fibrosis and sclerosis with accumulation of huge amounts of collagen, and Papillomatosis cutis. Malnutrition and reduced oxygenation of the affected tissues is a hallmark of lymphedema. Here, we investigated if the hypoxia of lymphatic endothelial cells (LECs) might contribute to fibrosis. We applied RNASeq and qPCR to study the concordant changes of the exome of three human foreskin-derived LEC isolates after 4 days of hypoxia (1% O2) vs. normoxia (21% O2). Of the approximately 16,000 genes expressed in LECs, 162 (1%) were up- or down-regulated by hypoxia. Of these, 21 genes have important functions in the production or modification of the extracellular matrix (ECM). In addition to the down-regulation of elastin, we found up-regulation of druggable enzymes and regulators such as the long non-coding RNA H19, inter-alpha-trypsin inhibitor heavy chain family member 5 (ITIH5), lysyl-oxidase (LOX), prolyl 4-hydroxylase subunit alpha 1 (P4HA1), procollagen-lysine 2-oxoglutarate 5-dioxygenase 2 (PLOD2), and others that are discussed in the paper. Initial lymphatics do not produce a continuous basement membrane; however, our study shows that hypoxic LECs have an unexpectedly high ability to alter the ECM.
Collapse
Affiliation(s)
- Jürgen Becker
- Department of Anatomy and Cell Biology, University Medical School Göttingen, 37075 Göttingen, Germany; (J.B.); (S.S.); (C.Z.)
| | - Sonja Schwoch
- Department of Anatomy and Cell Biology, University Medical School Göttingen, 37075 Göttingen, Germany; (J.B.); (S.S.); (C.Z.)
| | - Christina Zelent
- Department of Anatomy and Cell Biology, University Medical School Göttingen, 37075 Göttingen, Germany; (J.B.); (S.S.); (C.Z.)
| | - Maren Sitte
- NGS-Integrative Genomics Core Unit (NIG), Institute of Human Genetics, University Medical Center Göttingen, 37075 Göttingen, Germany; (M.S.); (G.S.)
| | - Gabriela Salinas
- NGS-Integrative Genomics Core Unit (NIG), Institute of Human Genetics, University Medical Center Göttingen, 37075 Göttingen, Germany; (M.S.); (G.S.)
| | - Jörg Wilting
- Department of Anatomy and Cell Biology, University Medical School Göttingen, 37075 Göttingen, Germany; (J.B.); (S.S.); (C.Z.)
- Correspondence:
| |
Collapse
|
11
|
Ischemia-modified albumin and fibulin-5 as diagnostic and prognostic markers for acute cerebrovascular disease. THE EGYPTIAN JOURNAL OF NEUROLOGY, PSYCHIATRY AND NEUROSURGERY 2021. [DOI: 10.1186/s41983-020-00264-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Abstract
Background
Fibulin-5 and ischemia-modified albumin (IMA) levels increase in acute phase of cerebrovascular diseases, yet data regarding their levels in various stroke subtypes and correlation with severity and prognosis are still insufficient. This work aims to evaluate serum IMA and fibulin-5 as markers for early detection and predicting prognosis in acute cerebrovascular disease.
Method
This case-control study was done on 100 patients with first time stroke, assessed by the National Institute of Health Stroke Scale (NIHSS) and Glasgow Coma Scale (GCS) within the first 24 h after stroke event, lesion volume was calculated, serum fibulin-5 and IMA levels were measured in the first few hours of stroke, and their levels were compared with levels measured in 75 control subjects. Three months later, stroke patients were assessed by the modified Rankin Scale (MRS).
Results
Fibulin-5 and IMA were significantly higher in the patient than in the control group and were positively correlated with lesion volume and NIHSS score but inversely correlated with GCS score. Fibulin-5 was statistically higher in hemorrhage group, whereas IMA was statistically higher in infarction group. MRS score was positively correlated with fibulin-5 levels at onset of stroke but not with IMA.
Conclusion
Fibulin-5 and ischemia-modified albumin are increased during the acute stroke phase and correlated with severity of stroke, but only fibulin-5 shows significant correlation with prognosis.
Collapse
|
12
|
Xu H, Chen S, Zhang H, Zou Y, Zhao J, Yu J, Le S, Cui J, Jiang L, Wu J, Xia J. Network-based analysis reveals novel gene signatures in the peripheral blood of patients with sporadic nonsyndromic thoracic aortic aneurysm. J Cell Physiol 2019; 235:2478-2491. [PMID: 31489966 DOI: 10.1002/jcp.29152] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 08/23/2019] [Indexed: 12/11/2022]
Abstract
Thoracic aortic aneurysm (TAA), a serious cardiovascular disease that causes morbidity and mortality worldwide. At present, few biomarkers can accurately diagnose the appearance of TAA before dissection or rupture. Our research has the intention to investigate the developing applicable biomarkers for TAA promising clinically diagnostic biomarkers or probable regulatory targets for TAA. In our research, we built correlation networks utilizing the expression profile of peripheral blood mononuclear cell obtained from a public microarray data set (GSE9106). Furthermore, we chose the turquoise module, which has the strongest significance with TAA and was further analyzed. Fourteen genes that overlapped with differentially expressed proteins in the medial aortic layer were obtained. Subsequently, we verified the results applying quantitative polymerase chain reaction (Q-PCR) to our clinical specimen. In general, the Q-PCR results coincide with the majority of the expression profile. Fascinatingly, a notable change occurred in CLU, DES, MYH10, and FBLN5. In summary, using weighted gene coexpression analysis, our study indicates that CLU, DES, MYH10, and FBLN5 were identified and validated to be related to TAA and might be candidate biomarkers or therapeutic targets for TAA.
Collapse
Affiliation(s)
- Heng Xu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shanshan Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hao Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yanqiang Zou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jing Zhao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jizhang Yu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Sheng Le
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jikai Cui
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lang Jiang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jie Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| |
Collapse
|
13
|
Saunders A, Macosko EZ, Wysoker A, Goldman M, Krienen FM, de Rivera H, Bien E, Baum M, Bortolin L, Wang S, Goeva A, Nemesh J, Kamitaki N, Brumbaugh S, Kulp D, McCarroll SA. Molecular Diversity and Specializations among the Cells of the Adult Mouse Brain. Cell 2019; 174:1015-1030.e16. [PMID: 30096299 DOI: 10.1016/j.cell.2018.07.028] [Citation(s) in RCA: 906] [Impact Index Per Article: 181.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/26/2018] [Accepted: 07/20/2018] [Indexed: 02/06/2023]
Abstract
The mammalian brain is composed of diverse, specialized cell populations. To systematically ascertain and learn from these cellular specializations, we used Drop-seq to profile RNA expression in 690,000 individual cells sampled from 9 regions of the adult mouse brain. We identified 565 transcriptionally distinct groups of cells using computational approaches developed to distinguish biological from technical signals. Cross-region analysis of these 565 cell populations revealed features of brain organization, including a gene-expression module for synthesizing axonal and presynaptic components, patterns in the co-deployment of voltage-gated ion channels, functional distinctions among the cells of the vasculature and specialization of glutamatergic neurons across cortical regions. Systematic neuronal classifications for two complex basal ganglia nuclei and the striatum revealed a rare population of spiny projection neurons. This adult mouse brain cell atlas, accessible through interactive online software (DropViz), serves as a reference for development, disease, and evolution.
Collapse
Affiliation(s)
- Arpiar Saunders
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
| | - Evan Z Macosko
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA.
| | - Alec Wysoker
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Melissa Goldman
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Fenna M Krienen
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Heather de Rivera
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Elizabeth Bien
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Matthew Baum
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Laura Bortolin
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Shuyu Wang
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Aleksandrina Goeva
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - James Nemesh
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Nolan Kamitaki
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Sara Brumbaugh
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - David Kulp
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Steven A McCarroll
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA; Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
| |
Collapse
|
14
|
Avsar M, Tambas M, Yalniz Z, Akdeniz D, Tuncer SB, Kilic S, Sukruoglu Erdogan O, Ciftci R, Dagoglu N, Vatansever S, Yazici H. The expression level of fibulin-2 in the circulating RNA (ctRNA) of epithelial tumor cells of peripheral blood and tumor tissue of patients with metastatic lung cancer. Mol Biol Rep 2019; 46:4001-4008. [PMID: 31069614 DOI: 10.1007/s11033-019-04846-z] [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: 01/02/2019] [Accepted: 04/30/2019] [Indexed: 11/28/2022]
Abstract
The Fibulins are a recently discovered family of extracellular matrix proteins. In this study, expression levels of the fibulin-2 (FBLN2) gene and its role in the formation of different metastatic foci were investigated in lung cancer patients. We analyzed 106 lung cancer patients and eight paraffin-embedded tissues, and 27 ethnical-, age- and sex-matched healthy controls for expression levels of the FBLN2 gene. cDNAs obtained from the enriched epithelial cells of peripheral blood lymphocytes and tumor tissues of patients were amplified with specific primers for the target FBLN2 gene and HPRT1 housekeeping gene using quantitative real-time polymerase chain reaction. FBLN2 gene expression levels of the enriched epithelial cells of peripheral blood lymphocytes were found to be decreased approximately twofold in all subsets of patients compared to healthy controls. Our results indicate a significant difference between patient subgroups and controls [F(4.124) = 14.846, p0.05] among patient subgroups: bone metastases versus non-metastatic groups (p = 0.997), bone versus brain metastases (p = 0994), bone metastases versus two primary tumors (p = 0.999), brain metastases versus two primary tumors (p = 0.999), brain metastases versus non-metastatic (p = 0.755), non-metastatic versus two primary tumors (p = 0.996), non-metastatic versus all other metastatic patients (p = 0.731). Moreover, we found a 50-fold upregulation of FBLN2 gene expression in paraffin-embedded tissues compared with the enriched epithelial cells of peripheral blood lymphocytes of patients. In the study, the enriched epithelial cells of peripheral blood lymphocytes of decreased FBLN2 expression was found to be correlated with metastasis. The fibulin-2 molecules might induce the metastatic potential through interaction with the other molecules in the microenvironment, nevertheless, it is needed further research whether the importance of FBLN2 on lung cancer oncogenesis and as a biomarker for metastatic lung cancer.
Collapse
Affiliation(s)
- Mukaddes Avsar
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey
| | - Makbule Tambas
- Department of Radiation Oncology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - Zubeyde Yalniz
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey
| | - Demet Akdeniz
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey
| | - Seref Bugra Tuncer
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey
| | - Seda Kilic
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey
| | - Ozge Sukruoglu Erdogan
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey
| | - Rumeysa Ciftci
- Department of Medical Oncology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - Nergiz Dagoglu
- Department of Radiation Oncology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - Sezai Vatansever
- Department of Medical Oncology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - Hulya Yazici
- Department of Cancer Genetics, Institute of Oncology, Istanbul University, Capa - Fatih, 34093, Istanbul, Turkey.
| |
Collapse
|
15
|
Yan B, Hu Y, Ma T, Wang Y. IDH1 mutation promotes lung cancer cell proliferation through methylation of Fibulin-5. Open Biol 2018; 8:rsob.180086. [PMID: 30305430 PMCID: PMC6223204 DOI: 10.1098/rsob.180086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/27/2018] [Indexed: 12/21/2022] Open
Abstract
Mutation in isocitrate dehydrogenase (IDH) leads to an aberrant function of the enzyme, leading to the production of hydroxyglutarate, as well as changes in cellular metabolism, DNA methylation and histone modification. Previous studies uncovered mutations in IDH1 in several malignancies, with the most frequent mutation being IDH1 R132H. It has been demonstrated that IDH1 expression is induced in non-small-cell lung cancer (NSCLC). However, the contribution of IDH1 mutation in the malignant transformation and development of NSCLC is unclear. In our study, we show that IDH1 R132H enhanced the migration and proliferation of NSCLC cells. Moreover, IDH1 R132H was a crucial modulator of 2-hydroxyglutarate, whose production from cells with IDH1 mutation promoted the binding of DNA-methyltransferase 1 (DNMT1) to the Fibulin-5 promoter, leading to its methylation. As a result, Fibulin-5 silencing in cells with IDH1 mutation enhanced the migration and proliferation of NSCLC cells. We show that the IDH1 mutation was present in tissues sampled from patients with NSCLC, which was reversely linked to Fibulin-5 expression. In this study, we suggest an innovative model for IDH1 R132H/Fibulin-5 pathway, which could throw light upon the activity of IDH1 R132H in NSCLC.
Collapse
Affiliation(s)
- Bingdi Yan
- Department of Pneumology, The 2nd Hospital Affiliated to Jilin University, Changchun, China
| | - Yanbing Hu
- Department of Ultrasound, The 2nd Hospital Affiliated to Jilin University, Changchun, China
| | - Tiangang Ma
- Department of Pneumology, The 2nd Hospital Affiliated to Jilin University, Changchun, China
| | - Yanjun Wang
- Nursing Department, The 2nd Hospital Affiliated to Jilin University, Changchun, China
| |
Collapse
|
16
|
Zhang W, Wang Y, Bi G. Limb remote ischaemic postconditioning-induced elevation of fibulin-5 confers neuroprotection to rats with cerebral ischaemia/reperfusion injury: Activation of the AKT pathway. Clin Exp Pharmacol Physiol 2018; 44:656-663. [PMID: 28251683 DOI: 10.1111/1440-1681.12742] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 01/12/2017] [Accepted: 02/22/2017] [Indexed: 01/20/2023]
Abstract
Limb remote ischaemic postconditioning (RIPostC) is an effective and well-acknowledged treatment for brain ischaemia injury. The present study aimed to evaluate the role of fibulin-5 in the neuroprotection of RIPostC against cerebral ischaemia/reperfusion (I/R) injury in rats. The middle cerebral artery occlusion (MCAO) model was established in rats and then RIPostC was carried out by three cycles of 10 minutes occlusion/10 minutes release of the bilateral femoral artery at the beginning of the reperfusion. To downregulate the fibulin-5 level, fibulin-5 siRNA was injected into the lateral ventricle 24 hours before MCAO. According to our present study, RIPostC attenuated cerebral I/R injury by decreasing infarct volume, improving neurobehavioral score and suppressing blood brain barrier (BBB) leakage. Moreover, the mRNA and protein levels of fibulin-5 were upregulated by RIPostC at 24 hours and 72 hours after reperfusion. Downregulation of fibulin-5 attenuated the neuroprotection of RIPostC. Finally, the result showed that fibulin-5 was upregulated by RIPostC via activation of the PI3K/AKT pathway. Taken together, these results provide evidence that upregulation of fibulin-5 is involved in the beneficial effect of RIPostC against cerebral I/R injury.
Collapse
Affiliation(s)
- Wei Zhang
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ye Wang
- Department of Neurology, Beijing Tsinghua Changgung Hospital, Beijing, China
| | - Guorong Bi
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| |
Collapse
|
17
|
Kwak JH, Lee NH, Lee HY, Hong IS, Nam JS. HIF2α/EFEMP1 cascade mediates hypoxic effects on breast cancer stem cell hierarchy. Oncotarget 2017; 7:43518-43533. [PMID: 27270657 PMCID: PMC5190041 DOI: 10.18632/oncotarget.9846] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/05/2016] [Indexed: 02/06/2023] Open
Abstract
Breast cancer stem cells (BCSCs) have been shown to contribute to tumor growth, metastasis, and recurrence. They are also markedly resistant to conventional cancer treatments, such as chemotherapy and radiation. Recent studies have suggested that hypoxia is one of the prominent micro-environmental factors that increase the self-renewal ability of BCSCs, partially by enhancing CSC phenotypes. Thus, the identification and development of new therapeutic approaches based on targeting the hypoxia-dependent responses in BCSCs is urgent. Through various in vitro studies, we found that hypoxia specifically up-regulates BCSC sphere formation and a subset of CD44+/CD24-/low CSCs. Hypoxia inducible factors 2α (HIF2α) depletion suppressed CSC-like phenotypes and CSC-mediated drug resistance in breast cancer. Furthermore, the stimulatory effects of hypoxia-induced HIF2α on BCSC sphere formation were successfully attenuated by epidermal growth factor-containing fibulin-like extracellular matrix protein 1 (EFEMP1) knockdown. Taken together, these data suggest that HIF2α mediates hypoxia-induced cancer growth/metastasis and that EFEMP1 is a downstream effector of hypoxia-induced HIF2α during breast tumorigenesis.
Collapse
Affiliation(s)
- Ji-Hye Kwak
- Laboratory of Stem Cell Research, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 406-840, Republic of Korea.,Department of Molecular Medicine, School of Medicine, Gachon University, Incheon, 406-840, Republic of Korea
| | - Na-Hee Lee
- Laboratory of Stem Cell Research, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 406-840, Republic of Korea.,Department of Molecular Medicine, School of Medicine, Gachon University, Incheon, 406-840, Republic of Korea
| | - Hwa-Yong Lee
- The Faculty of Liberal Arts, Jungwon University, Chungbuk, 367-805, Republic of Korea
| | - In-Sun Hong
- Laboratory of Stem Cell Research, Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, 406-840, Republic of Korea.,Department of Molecular Medicine, School of Medicine, Gachon University, Incheon, 406-840, Republic of Korea
| | - Jeong-Seok Nam
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju, 500-712, Republic of Korea
| |
Collapse
|
18
|
Labrousse-Arias D, Martínez-Ruiz A, Calzada MJ. Hypoxia and Redox Signaling on Extracellular Matrix Remodeling: From Mechanisms to Pathological Implications. Antioxid Redox Signal 2017; 27:802-822. [PMID: 28715969 DOI: 10.1089/ars.2017.7275] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
SIGNIFICANCE The extracellular matrix (ECM) is an essential modulator of cell behavior that influences tissue organization. It has a strong relevance in homeostasis and translational implications for human disease. In addition to ECM structural proteins, matricellular proteins are important regulators of the ECM that are involved in a myriad of different pathologies. Recent Advances: Biochemical studies, animal models, and study of human diseases have contributed to the knowledge of molecular mechanisms involved in remodeling of the ECM, both in homeostasis and disease. Some of them might help in the development of new therapeutic strategies. This review aims to review what is known about some of the most studied matricellular proteins and their regulation by hypoxia and redox signaling, as well as the pathological implications of such regulation. CRITICAL ISSUES Matricellular proteins have complex regulatory functions and are modulated by hypoxia and redox signaling through diverse mechanisms, in some cases with controversial effects that can be cell or tissue specific and context dependent. Therefore, a better understanding of these regulatory processes would be of great benefit and will open new avenues of considerable therapeutic potential. FUTURE DIRECTIONS Characterizing the specific molecular mechanisms that modulate matricellular proteins in pathological processes that involve hypoxia and redox signaling warrants additional consideration to harness the potential therapeutic value of these regulatory proteins. Antioxid. Redox Signal. 27, 802-822.
Collapse
Affiliation(s)
- David Labrousse-Arias
- 1 Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP) , Madrid, Spain
| | - Antonio Martínez-Ruiz
- 1 Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP) , Madrid, Spain .,2 Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV) , Madrid, Spain
| | - María J Calzada
- 1 Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP) , Madrid, Spain .,3 Departmento de Medicina, Universidad Autónoma de Madrid , Madrid, Spain
| |
Collapse
|
19
|
Martínez-Revelles S, García-Redondo AB, Avendaño MS, Varona S, Palao T, Orriols M, Roque FR, Fortuño A, Touyz RM, Martínez-González J, Salaices M, Rodríguez C, Briones AM. Lysyl Oxidase Induces Vascular Oxidative Stress and Contributes to Arterial Stiffness and Abnormal Elastin Structure in Hypertension: Role of p38MAPK. Antioxid Redox Signal 2017; 27:379-397. [PMID: 28010122 PMCID: PMC5563924 DOI: 10.1089/ars.2016.6642] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 12/22/2016] [Accepted: 12/22/2016] [Indexed: 12/19/2022]
Abstract
AIMS Vascular stiffness, structural elastin abnormalities, and increased oxidative stress are hallmarks of hypertension. Lysyl oxidase (LOX) is an elastin crosslinking enzyme that produces H2O2 as a by-product. We addressed the interplay between LOX, oxidative stress, vessel stiffness, and elastin. RESULTS Angiotensin II (Ang II)-infused hypertensive mice and spontaneously hypertensive rats (SHR) showed increased vascular LOX expression and stiffness and an abnormal elastin structure. Mice over-expressing LOX in vascular smooth muscle cells (TgLOX) exhibited similar mechanical and elastin alterations to those of hypertensive models. LOX inhibition with β-aminopropionitrile (BAPN) attenuated mechanical and elastin alterations in TgLOX mice, Ang II-infused mice, and SHR. Arteries from TgLOX mice, Ang II-infused mice, and/or SHR exhibited increased vascular H2O2 and O2.- levels, NADPH oxidase activity, and/or mitochondrial dysfunction. BAPN prevented the higher oxidative stress in hypertensive models. Treatment of TgLOX and Ang II-infused mice and SHR with the mitochondrial-targeted superoxide dismutase mimetic mito-TEMPO, the antioxidant apocynin, or the H2O2 scavenger polyethylene glycol-conjugated catalase (PEG-catalase) reduced oxidative stress, vascular stiffness, and elastin alterations. Vascular p38 mitogen-activated protein kinase (p38MAPK) activation was increased in Ang II-infused and TgLOX mice and this effect was prevented by BAPN, mito-TEMPO, or PEG-catalase. SB203580, the p38MAPK inhibitor, normalized vessel stiffness and elastin structure in TgLOX mice. INNOVATION We identify LOX as a novel source of vascular reactive oxygen species and a new pathway involved in vascular stiffness and elastin remodeling in hypertension. CONCLUSION LOX up-regulation is associated with enhanced oxidative stress that promotes p38MAPK activation, elastin structural alterations, and vascular stiffness. This pathway contributes to vascular abnormalities in hypertension. Antioxid. Redox Signal. 27, 379-397.
Collapse
Affiliation(s)
- Sonia Martínez-Revelles
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Spain
| | - Ana B. García-Redondo
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Spain
| | - María S. Avendaño
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Saray Varona
- CIBER de Enfermedades Cardiovasculares, Spain
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, Spain
| | - Teresa Palao
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Mar Orriols
- CIBER de Enfermedades Cardiovasculares, Spain
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, Spain
| | - Fernanda R. Roque
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
| | - Ana Fortuño
- Program of Cardiovascular Diseases, Centre for Applied Medical Research, University of Navarra, Pamplona, Spain
| | - Rhian M. Touyz
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Jose Martínez-González
- CIBER de Enfermedades Cardiovasculares, Spain
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, Spain
| | - Mercedes Salaices
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Spain
| | - Cristina Rodríguez
- CIBER de Enfermedades Cardiovasculares, Spain
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, Spain
| | - Ana M. Briones
- Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain
- CIBER de Enfermedades Cardiovasculares, Spain
| |
Collapse
|
20
|
Martí-Pàmies I, Cañes L, Alonso J, Rodríguez C, Martínez-González J. The nuclear receptor NOR-1/NR4A3 regulates the multifunctional glycoprotein vitronectin in human vascular smooth muscle cells. FASEB J 2017; 31:4588-4599. [PMID: 28666984 DOI: 10.1096/fj.201700136rr] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 06/19/2017] [Indexed: 01/04/2023]
Abstract
The nuclear receptor NOR-1 (NR4A3) has recently been involved in the regulation of extracellular matrix (ECM) proteins associated with neointimal thickening and the vascular control of hemostasis. We sought to find as-yet unidentified NOR-1 target genes in human vascular smooth muscle cells (VSMCs). An in silico analysis identified putative NOR-1 response elements in the proximal promoter region of several genes encoding for ECM proteins, including vitronectin (VTN). Lentiviral overexpression of NOR-1 strongly increased VTN mRNA and protein levels, whereas NOR-1 silencing significantly reduced VTN expression. Deletion and site-directed mutagenesis studies, as well as EMSA and chromatin immunoprecipitation, identified the NBRE(-202/-195) site in the VTN promoter as an essential element for NOR-1 responsiveness. Furthermore, NOR-1 and VTN colocalized in VSMCs in human atherosclerotic lesions. VTN levels were increased in cell supernatants from VSMCs that overexpress NOR-1. Cell supernatants from VSMCs overexpressing NOR-1 induced cell migration to a greater extent than supernatants from control cells, and this effect was attenuated when cell supernatants were preincubated with anti-VTN blocking antibodies or VTN was silenced in supernatant-generating cells. These results indicate that VTN is a target of NOR-1 and suggest that this multifunctional glycoprotein may participate in vascular responses mediated by this nuclear receptor.-Martí-Pàmies, I., Cañes, L., Alonso, J., Rodríguez, C., Martínez-González, J. The nuclear receptor NOR-1/NR4A3 regulates the multifunctional glycoprotein vitronectin in human vascular smooth muscle cells.
Collapse
Affiliation(s)
- Ingrid Martí-Pàmies
- Instituto de Investigaciones Biomédicas de Barcelona (IIBB-CSIC), Sant Pau Biomedical Research Institute, Barcelona, Spain.,Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Cardiovasculares, Madrid, Spain
| | - Laia Cañes
- Instituto de Investigaciones Biomédicas de Barcelona (IIBB-CSIC), Sant Pau Biomedical Research Institute, Barcelona, Spain
| | - Judith Alonso
- Instituto de Investigaciones Biomédicas de Barcelona (IIBB-CSIC), Sant Pau Biomedical Research Institute, Barcelona, Spain.,Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Cardiovasculares, Madrid, Spain
| | - Cristina Rodríguez
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Cardiovasculares, Madrid, Spain.,Institut Català de Ciències Cardiovasculars (ICCC), Sant Pau Biomedical Research Institute, Barcelona, Spain
| | - José Martínez-González
- Instituto de Investigaciones Biomédicas de Barcelona (IIBB-CSIC), Sant Pau Biomedical Research Institute, Barcelona, Spain; .,Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Cardiovasculares, Madrid, Spain
| |
Collapse
|
21
|
Varona S, García-Redondo AB, Martínez-González J, Salaices M, Briones AM, Rodríguez C. Vascular lysyl oxidase over-expression alters extracellular matrix structure and induces oxidative stress. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2017. [PMID: 28624291 DOI: 10.1016/j.arteri.2017.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Lysyl oxidase (LOX) participates in the assembly of collagen and elastin fibres. The impact of vascular LOX over-expression on extracellular matrix (ECM) structure and its contribution to oxidative stress has been analysed. METHODS Studies were conducted on mice over-expressing LOX (Tg), specifically in smooth muscle cells (VSMC). Gene expression was assessed by real-time PCR analysis. Sirius Red staining, H2O2 production and NADPH oxidase activity were analysed in different vascular beds. The size and number of fenestra of the internal elastic lamina were determined by confocal microscopy. RESULTS LOX activity was up-regulated in VSMC of transgenic mice compared with cells from control animals. At the same time, transgenic cells deposited more organised elastin fibres and their supernatants induced a stronger collagen assembly in in vitro assays. Vascular collagen cross-linking was also higher in Tg mice, which showed a decrease in the size of fenestrae and an enhanced expression of Fibulin-5. Interestingly, higher H2O2 production and NADPH oxidase activity was detected in the vascular wall from transgenic mice. The H2O2 scavenger catalase attenuated the stronger deposition of mature elastin fibres induced by LOX transgenesis. CONCLUSIONS LOX over-expression in VSMC was associated with a change in the structure of collagen and elastin fibres. LOX could constitute a novel source of oxidative stress that might participate in elastin changes and contribute to vascular remodelling.
Collapse
Affiliation(s)
- Saray Varona
- Centro de Investigación Cardiovascular (CSIC-ICCC). IIB-Sant Pau, Barcelona, España; CIBER de Enfermedades Cardiovasculares, España
| | - Ana B García-Redondo
- CIBER de Enfermedades Cardiovasculares, España; Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, España
| | - Jose Martínez-González
- Centro de Investigación Cardiovascular (CSIC-ICCC). IIB-Sant Pau, Barcelona, España; CIBER de Enfermedades Cardiovasculares, España
| | - Mercedes Salaices
- CIBER de Enfermedades Cardiovasculares, España; Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, España
| | - Ana M Briones
- CIBER de Enfermedades Cardiovasculares, España; Departamento de Farmacología, Universidad Autónoma de Madrid (UAM), Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, España.
| | - Cristina Rodríguez
- Centro de Investigación Cardiovascular (CSIC-ICCC). IIB-Sant Pau, Barcelona, España; CIBER de Enfermedades Cardiovasculares, España.
| |
Collapse
|
22
|
Okuyama T, Shirakawa J, Yanagisawa H, Kyohara M, Yamazaki S, Tajima K, Togashi Y, Terauchi Y. Identification of the matricellular protein Fibulin-5 as a target molecule of glucokinase-mediated calcineurin/NFAT signaling in pancreatic islets. Sci Rep 2017; 7:2364. [PMID: 28539593 PMCID: PMC5443834 DOI: 10.1038/s41598-017-02535-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 04/12/2017] [Indexed: 12/12/2022] Open
Abstract
Glucokinase-mediated glucose signaling induces insulin secretion, proliferation, and apoptosis in pancreatic β-cells. However, the precise molecular mechanisms underlying these processes are not clearly understood. Here, we demonstrated that glucokinase activation using a glucokinase activator (GKA) significantly upregulated the expression of Fibulin-5 (Fbln5), a matricellular protein involved in matrix-cell signaling, in isolated mouse islets. The islet Fbln5 expression was induced by ambient glucose in a time- and dose-dependent manner and further enhanced by high-fat diet or the deletion of insulin receptor substrate 2 (IRS-2), whereas the GKA-induced increase in Fbln5 expression was diminished in Irs-2-deficient islets. GKA-induced Fbln5 upregulation in the islets was blunted by a glucokinase inhibitor, KATP channel opener, Ca2+ channel blocker and calcineurin inhibitor, while it was augmented by harmine, a dual-specificity tyrosine phosphorylation-regulated kinase (DYRK) 1 A inhibitor. Although deletion of Fbln5 in mice had no significant effects on the glucose tolerance or β-cell functions, adenovirus-mediated Fbln5 overexpression increased glucose-stimulated insulin secretion in INS-1 rat insulinoma cells. Since the islet Fbln5 expression is regulated through a glucokinase/KATP channel/calcineurin/nuclear factor of activated T cells (NFAT) pathway crucial for the maintenance of β-cell functions, further investigation of Fbln5 functions in the islets is warranted.
Collapse
Affiliation(s)
- Tomoko Okuyama
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan
| | - Jun Shirakawa
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan.
| | - Hiromi Yanagisawa
- Life Science Center of Tsukuba Advanced Research Alliance, University of Tsukuba, Tsukuba, Japan
| | - Mayu Kyohara
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan
| | - Shunsuke Yamazaki
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan
| | - Kazuki Tajima
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan
| | - Yu Togashi
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan
| | - Yasuo Terauchi
- Department of Endocrinology and Metabolism, Graduate School of Medicine, Yokohama-City University, Yokohama, Japan.
| |
Collapse
|
23
|
Zhao T, Zhao C, Zhou Y, Zheng J, Gao S, Lu Y. HIF-1α binding to AEG-1 promoter induced upregulated AEG-1 expression associated with metastasis in ovarian cancer. Cancer Med 2017; 6:1072-1081. [PMID: 28401704 PMCID: PMC5430094 DOI: 10.1002/cam4.1053] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 01/26/2017] [Accepted: 02/08/2017] [Indexed: 12/13/2022] Open
Abstract
Ovarian cancer with the highest mortality rate among gynecological malignancies is one of common cancers among female cancer patients. As reported in recent years, AEG‐1 was associated with the occurrence, development, and metastasis of ovarian cancer, but the mechanisms remain unclear. In the current study, invasion capabilities of ovarian cancer OVCAR3 cells were measured by viral infection and transwell assay. Western blot analysis was used to evaluate the expression levels of β‐catenin, E‐cadherin, MMP2, and MMP9. With qRT‐PCR analysis, AEG‐1 and HIF‐1α gene expression were detected. We used luciferase reporter gene to measure AEG‐1 promoter activity under normoxia/hypoxia in OVCAR3 cells. Our work demonstrated that AEG‐1 significantly enhanced invasion capabilities of OVCAR3 cells and the expression levels of β‐catenin, E‐cadherin, MMP2, and MMP9 associated with invasion capabilities of OVCAR3 cells were upregulated. Furthermore, hypoxia enhanced invasion capabilities of OVCAR3 cells and induced AEG‐1 high gene expression, which was reversed by AEG‐1 knockdown lentivirus. HIF‐1α expression upregulation was induced in OVCAR3 cells after hypoxia. HIF‐1α knockdown lentivirus induced downregulated expression of AEG‐1 and invasion capabilities of OVCAR3 cells were also inhibited. Wild‐type AEG‐1 promoter activity under hypoxic conditions was significantly higher than that AEG‐1 mutation under normoxic conditions in the absence of hypoxia response. Our results suggested that HIF‐1α binds to AEG‐1 promoter to upregulate its expression, which was correlated with metastasis in ovarian cancer by inducing the expression of MMP2 and MMP9 as well as inhibiting expression of E‐cadherin and β‐catenin.
Collapse
Affiliation(s)
- Ting Zhao
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Chenyan Zhao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yanting Zhou
- School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Jing Zheng
- School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Shujun Gao
- The Diagnosis and Treatment Center of Cervical Disease, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yuan Lu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| |
Collapse
|
24
|
Role of Matricellular Proteins in Disorders of the Central Nervous System. Neurochem Res 2016; 42:858-875. [DOI: 10.1007/s11064-016-2088-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/17/2016] [Accepted: 10/21/2016] [Indexed: 12/15/2022]
|
25
|
Orriols M, Varona S, Aguiló S, Galán M, Martínez González J, Rodríguez C. [Inflammation inhibits vascular fibulin-5 expression: Involvement of transcription factor SOX9]. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2016; 28:271-280. [PMID: 27692634 DOI: 10.1016/j.arteri.2016.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 05/27/2016] [Accepted: 06/03/2016] [Indexed: 12/28/2022]
Abstract
INTRODUCTION Fibulin-5 (FBLN5) is an elastogenic protein critically involved in extracellular matrix (ECM) remodelling, a key process in abdominal aortic aneurysm (AAA). However, the possible contribution of FBLN5 to AAA development has not been addressed. METHODS Expression levels were determined by real-time PCR and Western blot in human abdominal aorta from patients with AAA or healthy donors, as well as in human aortic vascular smooth muscle cells (VSMC). Lentiviral transduction, transient transfections, and chromatin immunoprecipitation (ChIP) assays were also performed. RESULTS The expression of FBLN5 in human AAA was significantly lower than in healthy donors. FBLN5 mRNA and protein levels and their secretion to the extracellular environment were down-regulated in VSMC exposed to inflammatory stimuli. Interestingly, FBLN5 transcriptional activity was inhibited by TNFα and lipopolysaccharide (LPS), and depends on a SOX response element. In fact, SOX9 expression was reduced in VMSC induced by inflammatory mediators and in human AAA, and correlated with that of FBLN5. Furthermore, SOX9 over-expression limited the reduction of FBLN5 expression induced by cytokines in VSMC. Finally, it was observed that SOX9 interacts with FBLN5 promoter, and that this binding was reduced upon TNFα exposure. CONCLUSIONS FBLN5 downregulation in human AAA could contribute to extracellular matrix remodelling induced by the inflammatory component of the disease.
Collapse
Affiliation(s)
- Mar Orriols
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, España
| | - Saray Varona
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, España
| | - Silvia Aguiló
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, España
| | - María Galán
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, España
| | | | - Cristina Rodríguez
- Centro de Investigación Cardiovascular (CSIC-ICCC), IIB-Sant Pau, Barcelona, España.
| |
Collapse
|
26
|
Alonso J, Galán M, Martí-Pàmies I, Romero JM, Camacho M, Rodríguez C, Martínez-González J. NOR-1/NR4A3 regulates the cellular inhibitor of apoptosis 2 (cIAP2) in vascular cells: role in the survival response to hypoxic stress. Sci Rep 2016; 6:34056. [PMID: 27654514 PMCID: PMC5032021 DOI: 10.1038/srep34056] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 09/07/2016] [Indexed: 12/16/2022] Open
Abstract
Vascular cell survival is compromised under pathological conditions such as abdominal aortic aneurysm (AAA). We have previously shown that the nuclear receptor NOR-1 is involved in the survival response of vascular cells to hypoxia. Here, we identify the anti-apoptotic protein cIAP2 as a downstream effector of NOR-1. NOR-1 and cIAP2 were up-regulated in human AAA samples, colocalizing in vascular smooth muscle cells (VSMC). While NOR-1 silencing reduced cIAP2 expression in vascular cells, lentiviral over-expression of this receptor increased cIAP2 mRNA and protein levels. The transcriptional regulation of the human cIAP2 promoter was analyzed in cells over-expressing NOR-1 by luciferase reporter assays, electrophoretic mobility shift analysis and chromatin immunoprecipitation, identifying a NGFI-B site (NBRE-358/-351) essential for NOR-1 responsiveness. NOR-1 and cIAP2 were up-regulated by hypoxia and by a hypoxia mimetic showing a similar time-dependent pattern. Deletion and site-directed mutagenesis studies show that NOR-1 mediates the hypoxia-induced cIAP2 expression. While NOR-1 over-expression up-regulated cIAP2 and limited VSMC apoptosis induced by hypoxic stress, cIAP2 silencing partially prevented this NOR-1 pro-survival effect. These results indicate that cIAP2 is a target of NOR-1, and suggest that this anti-apoptotic protein is involved in the survival response to hypoxic stress mediated by NOR-1 in vascular cells.
Collapse
Affiliation(s)
- Judith Alonso
- Centro de Investigación Cardiovascular (CSIC-ICCC), Instituto de Investigación Biomédica Sant Pau (IIB-Sant Pau), c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - María Galán
- Centro de Investigación Cardiovascular (CSIC-ICCC), Instituto de Investigación Biomédica Sant Pau (IIB-Sant Pau), c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain.,Laboratorio de Angiología, Biología Vascular e Inflamación y Servicio de Cirugía Vascular, IIB-Sant Pau, c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - Ingrid Martí-Pàmies
- Centro de Investigación Cardiovascular (CSIC-ICCC), Instituto de Investigación Biomédica Sant Pau (IIB-Sant Pau), c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - José María Romero
- Laboratorio de Angiología, Biología Vascular e Inflamación y Servicio de Cirugía Vascular, IIB-Sant Pau, c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - Mercedes Camacho
- Laboratorio de Angiología, Biología Vascular e Inflamación y Servicio de Cirugía Vascular, IIB-Sant Pau, c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - Cristina Rodríguez
- Centro de Investigación Cardiovascular (CSIC-ICCC), Instituto de Investigación Biomédica Sant Pau (IIB-Sant Pau), c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| | - José Martínez-González
- Centro de Investigación Cardiovascular (CSIC-ICCC), Instituto de Investigación Biomédica Sant Pau (IIB-Sant Pau), c/Sant Antoni Maria Claret 167, 08025 Barcelona, Spain
| |
Collapse
|
27
|
Topalovski M, Hagopian M, Wang M, Brekken RA. Hypoxia and Transforming Growth Factor β Cooperate to Induce Fibulin-5 Expression in Pancreatic Cancer. J Biol Chem 2016; 291:22244-22252. [PMID: 27531748 DOI: 10.1074/jbc.m116.730945] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Indexed: 12/17/2022] Open
Abstract
The deposition of extracellular matrix (ECM) is a defining feature of pancreatic ductal adenocarcinoma (PDA), where ECM signaling can promote cancer cell survival and epithelial plasticity programs. However, ECM signaling can also limit PDA tumor growth by producing cytotoxic levels of reactive oxygen species. For example, excess fibronectin stimulation of α5β1 integrin on stromal cells in PDA results in reduced angiogenesis and increased tumor cell apoptosis because of oxidative stress. Fibulin-5 (Fbln5) is a matricellular protein that blocks fibronectin-integrin interaction and thus directly limits ECM-driven reactive oxygen species production and supports PDA progression. Compared with normal pancreatic tissue, Fbln5 is expressed abundantly in the stroma of PDA; however, the mechanisms underlying the stimulation of Fbln5 expression in PDA are undefined. Using in vitro and in vivo approaches, we report that hypoxia triggers Fbln5 expression in a TGF-β- and PI3K-dependent manner. Pharmacologic inhibition of TGF-β receptor, PI3K, or protein kinase B (AKT) was found to block hypoxia-induced Fbln5 expression in mouse embryonic fibroblasts and 3T3 fibroblasts. Moreover, tumor-associated fibroblasts from mouse PDA were also responsive to TGF-β receptor and PI3K/AKT inhibition with regard to suppression of Fbln5. In genetically engineered mouse models of PDA, therapy-induced hypoxia elevated Fbln5 expression, whereas pharmacologic inhibition of TGF-β signaling reduced Fbln5 expression. These findings offer insight into the signaling axis that induces Fbln5 expression in PDA and a potential strategy to block its production.
Collapse
Affiliation(s)
- Mary Topalovski
- From the Hamon Center for Therapeutic Oncology Research, Cancer Biology Graduate Program
| | | | - Miao Wang
- From the Hamon Center for Therapeutic Oncology Research
| | - Rolf A Brekken
- From the Hamon Center for Therapeutic Oncology Research, Cancer Biology Graduate Program, Division of Surgical Oncology, Department of Surgery, and Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas 75390-8593
| |
Collapse
|
28
|
Chan W, Ismail H, Mayaki D, Sanchez V, Tiedemann K, Davis EC, Hussain SNA. Fibulin-5 Regulates Angiopoietin-1/Tie-2 Receptor Signaling in Endothelial Cells. PLoS One 2016; 11:e0156994. [PMID: 27304216 PMCID: PMC4909301 DOI: 10.1371/journal.pone.0156994] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/23/2016] [Indexed: 11/24/2022] Open
Abstract
Background Fibulin-5 is an extracellular matrix glycoprotein that plays critical roles in vasculogenesis and embryonic development. Deletion of Fibulin-5 in mice results in enhanced skin vascularization and upregulation of the angiogenesis factor angiopoietin-1 (Ang-1), suggesting that Fibulin-5 functions as an angiogenesis inhibitor. In this study, we investigate the inhibitory effects of Fibulin-5 on Ang-1/TIE-2 receptor pathway signaling and cell survival in human endothelial cells. Methodology/Principal Findings Recombinant wild-type and RGE-mutant Fibulin-5 proteins were generated through stable transfection of HEK293 and CHO cells, respectively. In vitro solid phase binding assays using pure proteins revealed that wild-type Fibulin-5 does not bind to Ang-1 or TIE-2 proteins but strongly binds to heparin. Binding assays using human umbilical vein endothelial cells (HUVECs) indicated that wild-type Fibulin-5 strongly binds to cells but RGE-mutant Fibulin-5, which is incapable of binding to integrins, does not. Pre-incubation of HUVECs for 1 hr with Fibulin-5 significantly increased caspase 3/7 activity, ERK1/2 phosphorylation, and expressions of the transcription factor early growth response 1 (EGR1) and the dual-specificity phosphatase 5 (DUSP5). Fibulin-5 also strongly attenuated Ang-1-induced TIE-2 and AKT phosphorylation, decreased Ang-1-induced expressions of the transcription factors Inhibitor of DNA Binding 1 (ID1) and Kruppel-like Factor 2 (KLF2), and reversed the inhibitory effect of Ang-1 on serum deprivation-induced cytotoxicity and caspase 3/7 activity. Conclusion/Significance We conclude that Fibulin-5 strongly binds to the endothelial cell surface through heparin-sulfate proteoglycans and possibly integrins and that it exerts strong anti-angiogenic effects by reducing endothelial cell viability and interfering with the signaling pathways of the Ang-1/TIE-2 receptor axis.
Collapse
Affiliation(s)
- Wilson Chan
- Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada
| | - Hodan Ismail
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
| | - Dominique Mayaki
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
| | - Veronica Sanchez
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
| | - Kerstin Tiedemann
- Faculty of Dentistry, McGill University and Shriners Hospital for Children, Montréal, QC, Canada
| | - Elaine C. Davis
- Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada
| | - Sabah N. A. Hussain
- Translational Research in Respiratory Diseases, McGill University Health Centre, and Meakins-Christie Laboratories, Department of Medicine, McGill University, Montréal, QC, Canada
- * E-mail:
| |
Collapse
|
29
|
Greening DW, Nguyen HPT, Evans J, Simpson RJ, Salamonsen LA. Modulating the endometrial epithelial proteome and secretome in preparation for pregnancy: The role of ovarian steroid and pregnancy hormones. J Proteomics 2016; 144:99-112. [PMID: 27262222 DOI: 10.1016/j.jprot.2016.05.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 04/21/2016] [Accepted: 05/24/2016] [Indexed: 12/30/2022]
Abstract
UNLABELLED Dialogue between an appropriately developed embryo and hormonally-primed endometrium is essential to achieve implantation and establish pregnancy. Importantly, the point-of-first-contact between the embryo and the maternal endometrium occurs at the endometrial luminal epithelium (LE). Implantation events occur within the uterine cavity microenvironment regulated by local factors. Defects in embryo-endometrial communication likely underlie unexplained infertility; enhanced knowledge of this communication, specifically at initial maternal-fetal contact may reveal targets to improve fertility. Using a human endometrial luminal-epithelial (LE) cell line (ECC1), this targeted proteomic study reveals unique protein changes in both cellular (98% unique identifications) and secreted (96% unique identifications) proteins in the transition to the progesterone-dominated secretory (receptive) phase and subsequently to pregnancy, mediated by embryo-derived human chorionic gonadotropin (hCG). This analysis identified 157 progesterone-regulated cellular proteins, with further 193 significantly altered in response to hCG. Cellular changes were associated with metabolism, basement membrane and cell connectivity, proliferation and differentiation. Secretome analysis identified 1059 proteins; 123 significantly altered by progesterone, and 43 proteins altered by hCG, including proteins associated with cellular adhesion, extracellular-matrix organization, developmental growth, growth factor regulation, and cell signaling. Collectively, our findings reveal dynamic intracellular and secreted protein changes in the endometrium that may modulate successful establishment of pregnancy. BIOLOGICAL SIGNIFICANCE This study provides unique insights into the developmental biology of embryo implantation using targeted proteomics by identifying endometrial epithelial cellular and secreted protein changes in response to ovarian steroid hormones and pregnancy hormones that are essential for receptivity and implantation.
Collapse
Affiliation(s)
- David W Greening
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia.
| | - Hong P T Nguyen
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria 3168, Australia.
| | - Jemma Evans
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria 3168, Australia
| | - Richard J Simpson
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Lois A Salamonsen
- Hudson Institute of Medical Research (previously Prince Henry's Institute), Clayton, Victoria 3168, Australia
| |
Collapse
|
30
|
The nuclear receptor NOR-1 regulates the small muscle protein, X-linked (SMPX) and myotube differentiation. Sci Rep 2016; 6:25944. [PMID: 27181368 PMCID: PMC4867575 DOI: 10.1038/srep25944] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 04/25/2016] [Indexed: 01/12/2023] Open
Abstract
Recent works have highlighted the role of NOR-1 in both smooth and skeletal muscle, and have proposed this nuclear receptor as a nexus that coordinates muscle performance and metabolic capacity. However, no muscle specific genes regulated by NOR-1 have been identified so far. To identify NOR-1 target genes, we over-expressed NOR-1 in human vascular smooth muscle cells (VSMC). These cells subjected to sustained over-expression of supraphysiological levels of NOR-1 experienced marked phenotypic changes and up-regulated the skeletal muscle protein X-linked (SMPX), a protein typically expressed in striated muscle and associated to cell shape. By transcriptional studies and DNA-protein binding assays, we identified a non-consensus NBRE site in human SMPX promoter, critical for NOR-1 responsiveness. The expression of SMPX was higher in human skeletal muscle myoblasts (HSMM) than in human VSMC, and further increased in HSMM differentiated to myotubes. NOR-1 silencing prevented SMPX expression in HSMM, as well as their differentiation to myotubes, but the up-regulation of SMPX was dispensable for HSMM differentiation. Our results indicate that NOR-1 regulate SMPX in human muscle cells and acts as a muscle regulatory factor, but further studies are required to unravel its role in muscle differentiation and hypertrophy.
Collapse
|
31
|
Hu L, Dong MX, Zhao H, Xu GH, Qin XY. Fibulin-5: a novel biomarker for evaluating severity and predicting prognosis in patients with acute intracerebral haemorrhage. Eur J Neurol 2016; 23:1195-201. [PMID: 27106135 DOI: 10.1111/ene.13013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 03/01/2016] [Indexed: 12/20/2022]
Affiliation(s)
- L. Hu
- Department of Neurology; the First Affiliated Hospital of Chongqing Medical University; Chongqing China
- Department of Neurology; the Fifth People's Hospital of Chongqing; Chongqing China
| | - M.-X. Dong
- Department of Neurology; the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - H. Zhao
- Department of Neurology; the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - G.-H. Xu
- Department of Neurology; the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| | - X.-Y. Qin
- Department of Neurology; the First Affiliated Hospital of Chongqing Medical University; Chongqing China
| |
Collapse
|
32
|
Orriols M, Varona S, Martí-Pàmies I, Galán M, Guadall A, Escudero JR, Martín-Ventura JL, Camacho M, Vila L, Martínez-González J, Rodríguez C. Down-regulation of Fibulin-5 is associated with aortic dilation: role of inflammation and epigenetics. Cardiovasc Res 2016; 110:431-42. [DOI: 10.1093/cvr/cvw082] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 04/14/2016] [Indexed: 01/04/2023] Open
|
33
|
The Effect of Acute and Chronic Social Stress on the Hippocampal Transcriptome in Mice. PLoS One 2015; 10:e0142195. [PMID: 26556046 PMCID: PMC4640871 DOI: 10.1371/journal.pone.0142195] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 10/19/2015] [Indexed: 12/19/2022] Open
Abstract
Psychogenic stress contributes to the formation of brain pathology. Using gene expression microarrays, we analyzed the hippocampal transcriptome of mice subjected to acute and chronic social stress of different duration. The longest period of social stress altered the expression of the highest number of genes and most of the stress-induced changes in transcription were reversible after 5 days of rest. Chronic stress affected genes involved in the functioning of the vascular system (Alas2, Hbb-b1, Hba-a2, Hba-a1), injury response (Vwf, Mgp, Cfh, Fbln5, Col3a1, Ctgf) and inflammation (S100a8, S100a9, Ctla2a, Ctla2b, Lcn2, Lrg1, Rsad2, Isg20). The results suggest that stress may affect brain functions through the stress-induced dysfunction of the vascular system. An important issue raised in our work is also the risk of the contamination of brain tissue samples with choroid plexus. Such contamination would result in a consistent up- or down-regulation of genes, such as Ttr, Igf2, Igfbp2, Prlr, Enpp2, Sostdc1, 1500015O10RIK (Ecrg4), Kl, Clic6, Kcne2, F5, Slc4a5, and Aqp1. Our study suggests that some of the previously reported, supposedly specific changes in hippocampal gene expression, may be a result of the inclusion of choroid plexus in the hippocampal samples.
Collapse
|
34
|
Guo J, Cheng C, Chen CS, Xing X, Xu G, Feng J, Qin X. Overexpression of Fibulin-5 Attenuates Ischemia/Reperfusion Injury After Middle Cerebral Artery Occlusion in Rats. Mol Neurobiol 2015; 53:3154-3167. [DOI: 10.1007/s12035-015-9222-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Accepted: 05/21/2015] [Indexed: 02/07/2023]
|
35
|
Jover E, Marín F, Quintana M, Pérez-Andreu J, Hurtado JA, Rodríguez C, Martínez-González J, González-Conejero R, Valdés M, Hernández-Romero D. CALU polymorphism A29809G affects calumenin availability involving vascular calcification. J Mol Cell Cardiol 2015; 82:218-27. [PMID: 25823396 DOI: 10.1016/j.yjmcc.2015.03.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/09/2015] [Accepted: 03/24/2015] [Indexed: 01/07/2023]
Abstract
Calumenin inhibits gamma-carboxylation of matrix-Gla-protein preventing BMP2-dependent calcification. Our aim was to explore the clinical relevance and functionality of the CALU polymorphism rs1043550, and the relationship of calumenin time-dependent expression profile with the active calcification of human vascular smooth muscle cells (hVSMC). Coronary artery calcium score and lesion severity were assessed by cardiac computed tomography in 139 consecutive low-risk patients genotyped for rs1043550. Polymorphic (G) allele carriage was associated with lower calcium (OR: 6.19, p=0.042). Calcified arteries from CALU 'A' allele carriers undergoing cardiovascular surgery exhibited higher residual calcification, higher calumenin immunostaining and lower matrix-Gla-protein, contrary to 'G' allele carriers. In a luciferase reporter system in vascular cells, polymorphic 'G' allele reduced the mRNA stability by 30% (p < 0.05). Osteogenic high-phosphate media induced active differentiation of hVSMC onto functional osteoblast-like cells as demonstrated by extracellular matrix mineralization and osteoblast markers expression. Calumenin was early over-expressed at day 3 (p < 0.05), but decreased thereafter (mRNA and protein) with implications on gamma-carboxylation system. Calumenin was found released and co-localizing with extracellular matrix calcifications. The CALU polymorphism rs1043550 affects mRNA stability and tissue availability of calumenin thus supporting the protective clinical significance. Calumenin shows a time-dependent profile during induced calcification. These data demonstrate a novel association of vascular calcification with the VSMC phenotypic transition into osteoblast-like cells. Moreover, hyperphosphatemic stimuli render calumenin accumulation in the mineralized extracellular matrix.
Collapse
MESH Headings
- Alleles
- Calcium/metabolism
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Cell Culture Techniques
- Cell Differentiation
- Cells, Cultured
- Coronary Vessels/metabolism
- Coronary Vessels/pathology
- Extracellular Matrix/metabolism
- Extracellular Matrix Proteins/metabolism
- Humans
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/metabolism
- Osteoblasts/cytology
- Osteoblasts/metabolism
- Polymorphism, Single Nucleotide
- RNA Stability/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Vascular Calcification/genetics
- Vascular Calcification/metabolism
- Matrix Gla Protein
Collapse
Affiliation(s)
- Eva Jover
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Francisco Marín
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain.
| | - Míriam Quintana
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Joaquín Pérez-Andreu
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - José Antonio Hurtado
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Cristina Rodríguez
- Centro de Investigación Cardiovascular, CSIC-ICCC, Instituto de Investigación Biomédica Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - José Martínez-González
- Centro de Investigación Cardiovascular, CSIC-ICCC, Instituto de Investigación Biomédica Sant Pau (IIB Sant Pau), Barcelona, Spain
| | | | - Mariano Valdés
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| | - Diana Hernández-Romero
- Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, IMIB-Arrixaca, Murcia, Spain
| |
Collapse
|
36
|
Orriols M, Guadall A, Galán M, Martí-Pàmies I, Varona S, Rodríguez-Calvo R, Briones AM, Navarro MA, de Diego A, Osada J, Martínez-González J, Rodríguez C. Lysyl oxidase (LOX) in vascular remodelling. Insight from a new animal model. Thromb Haemost 2014; 112:812-24. [PMID: 24990180 DOI: 10.1160/th14-01-0024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 05/06/2014] [Indexed: 12/18/2022]
Abstract
Lysyl oxidase (LOX) is an extracellular matrix-modifying enzyme that seems to play a critical role in vascular remodelling. However, the lack of viable LOX-deficient animal models has been an obstacle to deep in LOX biology. In this study we have developed a transgenic mouse model that over-expresses LOX in vascular smooth muscle cells (VSMC) to clarify whether LOX could regulate VSMC phenotype and vascular remodelling. The SM22α proximal promoter drove the expression of a transgene containing the human LOX cDNA. Two stable transgenic lines, phenotypically indistinguishable, were generated by conventional methods (TgLOX). Transgene expression followed the expected SMC-specific pattern. In TgLOX mice, real-time PCR and immunohistochemistry evidenced a strong expression of LOX in the media from aorta and carotid arteries, coincident with a higher proportion of mature collagen. VSMC isolated from TgLOX mice expressed high levels of LOX pro-enzyme, which was properly secreted and processed into mature and bioactive LOX. Interestingly, cell proliferation was significantly reduced in cells from TgLOX mice. Transgenic VSMC also exhibited low levels of Myh10 (marker of SMC phenotypic switching), PCNA (marker of cell proliferation) and MCP-1, and a weak activation of Akt and ERK1/2 in response to mitogenic stimuli. Accordingly, neointimal thickening induced by carotid artery ligation was attenuated in TgLOX mice that also displayed a reduction in PCNA and MCP-1 immunostaining. Our results give evidence that LOX plays a critical role in vascular remodelling. We have developed a new animal model to study the role of LOX in vascular biology.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Cristina Rodríguez
- José Martínez-González or Cristina Rodríguez, Centro de Investigación Cardiovascular (CSIC-ICCC), Hospital de la Santa Creu i Sant Pau (pabellón Nº 11), Avda. Sant Antoni Maria Claret 167, 08025 Barcelona, Spain, Tel.: +34 93 5565897, Fax: +34 93 5565559, E-mail: ;
| |
Collapse
|
37
|
Eble JA, de Rezende FF. Redox-relevant aspects of the extracellular matrix and its cellular contacts via integrins. Antioxid Redox Signal 2014; 20:1977-93. [PMID: 24040997 PMCID: PMC3993061 DOI: 10.1089/ars.2013.5294] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 08/29/2013] [Accepted: 09/16/2013] [Indexed: 12/30/2022]
Abstract
SIGNIFICANCE The extracellular matrix (ECM) fulfills essential functions in multicellular organisms. It provides the mechanical scaffold and environmental cues to cells. Upon cell attachment, the ECM signals into the cells. In this process, reactive oxygen species (ROS) are physiologically used as signalizing molecules. RECENT ADVANCES ECM attachment influences the ROS-production of cells. In turn, ROS affect the production, assembly and turnover of the ECM during wound healing and matrix remodeling. Pathological changes of ROS levels lead to excess ECM production and increased tissue contraction in fibrotic disorders and desmoplastic tumors. Integrins are cell adhesion molecules which mediate cell adhesion and force transmission between cells and the ECM. They have been identified as a target of redox-regulation by ROS. Cysteine-based redox-modifications, together with structural data, highlighted particular regions within integrin heterodimers that may be subject to redox-dependent conformational changes along with an alteration of integrin binding activity. CRITICAL ISSUES In a molecular model, a long-range disulfide-bridge within the integrin β-subunit and disulfide bridges within the genu and calf-2 domains of the integrin α-subunit may control the transition between the bent/inactive and upright/active conformation of the integrin ectodomain. These thiol-based intramolecular cross-linkages occur in the stalk domain of both integrin subunits, whereas the ligand-binding integrin headpiece is apparently unaffected by redox-regulation. FUTURE DIRECTIONS Redox-regulation of the integrin activation state may explain the effect of ROS in physiological processes. A deeper understanding of the underlying mechanism may open new prospects for the treatment of fibrotic disorders.
Collapse
Affiliation(s)
- Johannes A. Eble
- Institute for Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
- Excellence Cluster Cardio-Pulmonary System, Center for Molecular Medicine, Vascular Matrix Biology, Frankfurt University Hospital, Frankfurt/Main, Germany
| | - Flávia Figueiredo de Rezende
- Institute for Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
- Excellence Cluster Cardio-Pulmonary System, Center for Molecular Medicine, Vascular Matrix Biology, Frankfurt University Hospital, Frankfurt/Main, Germany
| |
Collapse
|
38
|
Silpanisong J, Pearce WJ. Vasotrophic regulation of age-dependent hypoxic cerebrovascular remodeling. Curr Vasc Pharmacol 2014; 11:544-63. [PMID: 24063376 DOI: 10.2174/1570161111311050002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 06/08/2012] [Accepted: 07/12/2012] [Indexed: 02/07/2023]
Abstract
Hypoxia can induce functional and structural vascular remodeling by changing the expression of trophic factors to promote homeostasis. While most experimental approaches have been focused on functional remodeling, structural remodeling can reflect changes in the abundance and organization of vascular proteins that determine functional remodeling. Better understanding of age-dependent hypoxic macrovascular remodeling processes of the cerebral vasculature and its clinical implications require knowledge of the vasotrophic factors that influence arterial structure and function. Hypoxia can affect the expression of transcription factors, classical receptor tyrosine kinase factors, non-classical G-protein coupled factors, catecholamines, and purines. Hypoxia's remodeling effects can be mediated by Hypoxia Inducible Factor (HIF) upregulation in most vascular beds, but alterations in the expression of growth factors can also be independent of HIF. PPARγ is another transcription factor involved in hypoxic remodeling. Expression of classical receptor tyrosine kinase ligands, including vascular endothelial growth factor, platelet derived growth factor, fibroblast growth factor and angiopoietins, can be altered by hypoxia which can act simultaneously to affect remodeling. Tyrosine kinase-independent factors, such as transforming growth factor, nitric oxide, endothelin, angiotensin II, catecholamines, and purines also participate in the remodeling process. This adaptation to hypoxic stress can fundamentally change with age, resulting in different responses between fetuses and adults. Overall, these mechanisms integrate to assure that blood flow and metabolic demand are closely matched in all vascular beds and emphasize the view that the vascular wall is a highly dynamic and heterogeneous tissue with multiple cell types undergoing regular phenotypic transformation.
Collapse
Affiliation(s)
- Jinjutha Silpanisong
- Center for Perinatal Biology, Loma Linda University School of Medicine, Loma Linda, CA 92350, USA.
| | | |
Collapse
|
39
|
Karmon AE, Cardozo ER, Rueda BR, Styer AK. MicroRNAs in the development and pathobiology of uterine leiomyomata: does evidence support future strategies for clinical intervention? Hum Reprod Update 2014; 20:670-87. [PMID: 24706045 DOI: 10.1093/humupd/dmu017] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Human leiomyomata (fibroids) are benign tumors of the uterus, represent the most common neoplasms of reproductive-aged women and have a prevalence of ∼70% in the general population. This disorder conveys a significant degree of morbidity and remains the leading indication for hysterectomy in the USA. Prior investigations of aberrant microRNA (miRNA) expression in various malignancies have provided invaluable insight into the role of this class of small non-coding RNAs in tumor growth. Evidence of irregular miRNA expression in uterine fibroids has garnered recent interest for diagnostic and therapeutic applications. Since miRNA gene targets modulate several processes implicated in the genesis of uterine fibroids, more focused investigation has the potential to elucidate the functional significance of miRNA in the genesis and pathology of the disease. METHODS Comprehensive electronic searches of peer reviewed published literature in PubMed (US National Library of Medicine, National Institute of Health; http://www.ncbi.nlm.nih.gov/pubmed/) were performed for content related to the biologic functions of miRNA, the roles of miRNA in human disease and studies investigating miRNA in the context of uterine leiomyomata. Herein, this article will review the current evidence supporting the use of miRNA expression profiling as an investigative tool to assess the pathobiology of uterine fibroids and will discuss potential future applications of miRNAs as biomarkers and therapeutic targets. RESULTS Mounting evidence supports a functional role for miRNA as either indirect or direct regulators of gene expression which impacts the pathobiology of uterine fibroids. Specifically, miRNAs let-7, 200a, 200c, 93, 106b and 21 have been implicated in cellular proliferation, apoptosis, extracellular matrix turnover, angiogenesis and inflammation. Preliminary data provide evidence to suggest that respective in vitro miRNA expression in leiomyomata and myometrium is regulated by sex steroids. CONCLUSIONS Collectively, the identification of aberrantly expressed miRNAs in uterine leiomyomata and accumulating data derived from mining of gene target prediction models and recent functional studies support the concept that miRNAs might impact the genesis and progression of disease. However, the specific biologic functions of differential miRNA expression have yet to be confirmed in vivo. Further functional studies and developing miRNA technology may provide the basis for future applications of miRNAs in clinical medicine as biomarkers and therapeutic targets.
Collapse
Affiliation(s)
- Anatte E Karmon
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Eden R Cardozo
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Bo R Rueda
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Aaron K Styer
- Vincent Center for Reproductive Biology, Vincent Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA Department of Obstetrics, Gynecology, and Reproductive Biology, Harvard Medical School, Boston, MA 02115, USA
| |
Collapse
|
40
|
El receptor nuclear NOR-1 regula la activación de las células vasculares y el remodelado vascular en respuesta a estrés hemodinámico. CLINICA E INVESTIGACION EN ARTERIOSCLEROSIS 2014; 26:66-75. [DOI: 10.1016/j.arteri.2013.11.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 11/04/2013] [Indexed: 01/12/2023]
|
41
|
Goyal R, Van Wickle J, Goyal D, Matei N, Longo LD. Antenatal maternal long-term hypoxia: acclimatization responses with altered gene expression in ovine fetal carotid arteries. PLoS One 2013; 8:e82200. [PMID: 24367503 PMCID: PMC3867347 DOI: 10.1371/journal.pone.0082200] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 10/22/2013] [Indexed: 12/17/2022] Open
Abstract
In humans and other species, long-term hypoxia (LTH) during pregnancy can lead to intrauterine growth restriction with reduced body/brain weight, dysregulation of cerebral blood flow (CBF), and other problems. To identify the signal transduction pathways and critical molecules, which may be involved in acclimatization to high altitude LTH, we conducted microarray with advanced bioinformatic analysis on carotid arteries (CA) from the normoxic near-term ovine fetus at sea-level and those acclimatized to high altitude for 110+ days during gestation. In response to LTH acclimatization, in fetal CA we identified mRNA from 38 genes upregulated >2 fold (P<0.05) and 9 genes downregulated >2-fold (P<0.05). The major genes with upregulated mRNA were SLC1A3, Insulin-like growth factor (IGF) binding protein 3, IGF type 2 receptor, transforming growth factor (TGF) Beta-3, and genes involved in the AKT and BCL2 signal transduction networks. Most genes with upregulated mRNA have a common motif for Pbx/Knotted homeobox in the promoter region, and Sox family binding sites in the 3′ un translated region (UTR). Genes with downregulated mRNA included those involved in the P53 pathway and 5-lipoxygenase activating proteins. The promoter region of all genes with downregulated mRNA, had a common 49 bp region with a binding site for DOT6 and TOD6, components of the RPD3 histone deacetylase complex RPD3C(L). We also identified miRNA complementary to a number of the altered genes. Thus, the present study identified molecules in the ovine fetus, which may play a role in the acclimatization response to high-altitude associated LTH.
Collapse
Affiliation(s)
- Ravi Goyal
- Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
- * E-mail:
| | - Jonathan Van Wickle
- Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
| | - Dipali Goyal
- Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
| | - Nathanael Matei
- Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
| | - Lawrence D. Longo
- Center for Perinatal Biology, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
- Department of Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, California, United States of America
| |
Collapse
|
42
|
Fetal development of the elastic-fiber-mediated enthesis in the human middle ear. Ann Anat 2013; 195:441-8. [DOI: 10.1016/j.aanat.2013.03.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 12/12/2012] [Accepted: 03/17/2013] [Indexed: 12/20/2022]
|
43
|
Kinoshita H, Umezawa T, Omine Y, Kasahara M, Rodríguez-Vázquez JF, Murakami G, Abe S. Distribution of elastic fibers in the head and neck: a histological study using late-stage human fetuses. Anat Cell Biol 2013; 46:39-48. [PMID: 23560235 PMCID: PMC3615611 DOI: 10.5115/acb.2013.46.1.39] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 12/01/2012] [Accepted: 12/17/2012] [Indexed: 01/13/2023] Open
Abstract
There is little or no information about the distribution of elastic fibers in the human fetal head. We examined this issue in 15 late-stage fetuses (crown-rump length, 220-320 mm) using aldehyde-fuchsin and elastica-Masson staining, and we used the arterial wall elastic laminae and external ear cartilages as positive staining controls. The posterior pharyngeal wall, as well as the ligaments connecting the laryngeal cartilages, contained abundant elastic fibers. In contrast with the sphenomandibular ligament and the temporomandibular joint disk, in which elastic fibers were partly present, the discomalleolar ligament and the fascial structures around the pterygoid muscles did not have any elastic fibers. In addition, the posterior marginal fascia of the prestyloid space did contain such fibers. Notably, in the middle ear, elastic fibers accumulated along the tendons of the tensor tympani and stapedius muscles and in the joint capsules of the ear ossicle articulations. Elastic fibers were not seen in any other muscle tendons or vertebral facet capsules in the head and neck. Despite being composed of smooth muscle, the orbitalis muscle did not contain any elastic fibers. The elastic fibers in the sphenomandibular ligament seemed to correspond to an intermediate step of development between Meckel's cartilage and the final ligament. Overall, there seemed to be a mini-version of elastic fiber distribution compared to that in adults and a different specific developmental pattern of connective tissues. The latter morphology might be a result of an adaptation to hypoxic conditions during development.
Collapse
|
44
|
Rodríguez-Calvo R, Guadall A, Calvayrac O, Navarro MA, Alonso J, Ferrán B, de Diego A, Muniesa P, Osada J, Rodríguez C, Martínez-González J. Over-expression of neuron-derived orphan receptor-1 (NOR-1) exacerbates neointimal hyperplasia after vascular injury. Hum Mol Genet 2013; 22:1949-59. [PMID: 23390133 DOI: 10.1093/hmg/ddt042] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
We have previously shown that NOR-1 (NR4A3) modulates the proliferation and survival of vascular cells in culture. However, in genetically modified animal models, somewhat conflicting results have been reported concerning the involvement of NOR-1 in neointimal formation after vascular injury. The aim of this study was to generate a transgenic mouse model over-expressing NOR-1 in smooth muscle cells (SMCs) and assess the consequence of a gain of function of this receptor on intimal hyperplasia after vascular injury. The transgene construct (SM22-NOR1) was prepared by ligating the full-length human NOR-1 cDNA (hNOR-1) and a mouse SM22α minimal promoter able to drive NOR-1 expression to SMC. Two founders were generated and two stable transgenic mouse lines (TgNOR-1) were established by backcrossing the transgene-carrying founders with C57BL/6J mice. Real-time PCR and immunohistochemistry confirmed that hNOR-1 was mainly targeted to vascular beds such as aorta and carotid arteries, and was similar in both transgenic lines. Vascular SMC from transgenic animals exhibit increased NOR-1 transcriptional activity (assessed by electrophoretic mobility shift assay and luciferase assays), increased mitogenic activity (determined by [(3)H]-thymidine incorporation; 1.58-fold induction, P < 0.001) and increased expression of embryonic smooth muscle myosin heavy chain (SMemb) than wild-type cells from control littermates. Using the carotid artery ligation model, we show that neointima formation was increased in transgenic versus wild-type mice (2.36-fold induction, P < 0.01). Our in vivo data support a role for NOR-1 in VSMC proliferation and vascular remodelling. This NOR-1 transgenic mouse could be a useful model to study fibroproliferative vascular diseases.
Collapse
|
45
|
Haugen M, Dammen R, Svejda B, Gustafsson BI, Pfragner R, Modlin I, Kidd M. Differential signal pathway activation and 5-HT function: the role of gut enterochromaffin cells as oxygen sensors. Am J Physiol Gastrointest Liver Physiol 2012; 303:G1164-73. [PMID: 22936271 PMCID: PMC3517648 DOI: 10.1152/ajpgi.00027.2012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The chemomechanosensory function of the gut enterochromaffin (EC) cell enables it to respond to dietary agents and mechanical stretch. We hypothesized that the EC cell, which also sensed alterations in luminal or mucosal oxygen level, was physiologically sensitive to fluctuations in O(2). Given that low oxygen levels induce 5-HT production and secretion through a hypoxia inducible factor 1α (HIF-1α)-dependent pathway, we also hypothesized that increasing O(2) would reduce 5-HT production and secretion. Isolated normal EC cells as well as the well-characterized EC cell model KRJ-I were used to examine HIF signaling (luciferase-assays), hypoxia transcriptional response element (HRE)-mediated transcription (PCR), signaling pathways (Western blot), and 5-HT release (ELISA) during exposure to different oxygen levels. Normal EC cells and KRJ-I cells express HIF-1α, and transient transfection with Renilla luciferase under HRE control identified a hypoxia-mediated pathway in these cells. PCR confirmed activation of HIF-downstream targets, GLUT1, IGF2, and VEGF under reduced O(2) levels (0.5%). Reducing O(2) also elevated 5-HT secretion (2-3.2-fold) as well as protein levels of HIF-1α (1.7-3-fold). Increasing O(2) to 100% inhibited HRE-mediated signaling, transcription, reduced 5-HT secretion, and significantly lowered HIF-1α levels (∼75% of control). NF-κB signaling was also elevated during hypoxia (1.2-1.6-fold), but no significant changes were noted in PKA/cAMP. We concluded that gut EC cells are oxygen responsive, and alterations in O(2) levels differentially activate HIF-1α and tryptophan hydroxylase 1, as well as NF-κB signaling. This results in alterations in 5-HT production and secretion and identifies that the chemomechanosensory role of EC cells extends to oxygen sensing.
Collapse
Affiliation(s)
- Martin Haugen
- 1Gastrointestinal Pathobiology Research Group, Yale University School of Medicine, New Haven, Connecticut;
| | - Rikard Dammen
- 1Gastrointestinal Pathobiology Research Group, Yale University School of Medicine, New Haven, Connecticut;
| | - Bernhard Svejda
- 1Gastrointestinal Pathobiology Research Group, Yale University School of Medicine, New Haven, Connecticut;
| | - Bjorn I. Gustafsson
- 2Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway;
| | - Roswitha Pfragner
- 3Institute of Pathophysiology and Immunology, Centre for Molecular Medicine, Graz, Austria
| | - Irvin Modlin
- 1Gastrointestinal Pathobiology Research Group, Yale University School of Medicine, New Haven, Connecticut;
| | - Mark Kidd
- 1Gastrointestinal Pathobiology Research Group, Yale University School of Medicine, New Haven, Connecticut;
| |
Collapse
|
46
|
Wise SG, Waterhouse A, Michael P, Ng MKC. Extracellular matrix molecules facilitating vascular biointegration. J Funct Biomater 2012; 3:569-87. [PMID: 24955633 PMCID: PMC4031001 DOI: 10.3390/jfb3030569] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 08/01/2012] [Accepted: 08/06/2012] [Indexed: 12/16/2022] Open
Abstract
All vascular implants, including stents, heart valves and graft materials exhibit suboptimal biocompatibility that significantly reduces their clinical efficacy. A range of biomolecules in the subendothelial space have been shown to play critical roles in local regulation of thrombosis, endothelial growth and smooth muscle cell proliferation, making these attractive candidates for modulation of vascular device biointegration. However, classically used biomaterial coatings, such as fibronectin and laminin, modulate only one of these components; enhancing endothelial cell attachment, but also activating platelets and triggering thrombosis. This review examines a subset of extracellular matrix molecules that have demonstrated multi-faceted vascular compatibility and accordingly are promising candidates to improve the biointegration of vascular biomaterials.
Collapse
Affiliation(s)
- Steven G Wise
- The Heart Research Institute, Eliza Street, Newtown, NSW 2042, Australia.
| | - Anna Waterhouse
- Wyss Institute for Biologically Inspired Engineering at Harvard, Boston, MA 02115, USA.
| | - Praveesuda Michael
- The Heart Research Institute, Eliza Street, Newtown, NSW 2042, Australia.
| | - Martin K C Ng
- The Heart Research Institute, Eliza Street, Newtown, NSW 2042, Australia.
| |
Collapse
|
47
|
Chuang TD, Panda H, Luo X, Chegini N. miR-200c is aberrantly expressed in leiomyomas in an ethnic-dependent manner and targets ZEBs, VEGFA, TIMP2, and FBLN5. Endocr Relat Cancer 2012; 19:541-56. [PMID: 22685266 PMCID: PMC3402184 DOI: 10.1530/erc-12-0007] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
MicroRNA-200c (miR-200c) through repression of specific target genes has been associated with cellular transition, tumorigenesis, and tissue fibrosis. We explored the expression and functional aspects of miR-200c in genesis of leiomyomas (LYO), benign uterine tumors with fibrotic characteristic. Using LYO and matched myometrium (MYO; n=76) from untreated and from patients exposed to hormonal therapies (GNRH agonist (GNRHa), Depo-Provera, and oral contraceptives), we found that miR-200c was expressed at significantly lower levels (P<0.05) in LYO as compared with MYO. These levels were lower in LYO from African Americans as compared with Caucasians, patients experiencing abnormal uterine bleeding and those exposed to GNRHa therapy. Gain-of-function of miR-200c in isolated leiomyoma smooth muscle cells (LSMCs), myometrial smooth muscle cells (MSMCs), and leiomyosarcoma cell line (SKLM-S1) repressed ZEB1/ZEB2 mRNAs and proteins, with concurrent increase in E-cadherin (CDH1) and reduction in vimentin expression, phenotypic alteration, and inhibition of MSMC and LSMC proliferations. We further validated TIMP2, FBLN5, and VEGFA as direct targets of miR-200c through interaction with their respective 3' UTRs, and other genes as determined by microarray analysis. At tissue levels, LYO expressed lower levels of TIMP2 and FBLN5 mRNAs but increased protein expressions, which to some extent altered due to hormonal exposure. Given the regulatory functions of ZEBs, VEGFA, FBLN5, and TIMP2 on cellular activities that promote cellular transition, angiogenesis, and matrix remodeling, we concluded that altered expression of miR-200c may have a significant impact on the outcome of LYO growth, maintenance of their mesenchymal and fibrotic characteristics, and possibly their associated symptoms.
Collapse
Affiliation(s)
- Tsai-Der Chuang
- Department of Obstetrics and Gynecology, University of Florida, Gainesville, FL 32610-0294, USA.
| | | | | | | |
Collapse
|
48
|
Avances en la etiopatogenia de la hipertensión arterial: actualización en la investigación preclínica. HIPERTENSION Y RIESGO VASCULAR 2012. [DOI: 10.1016/j.hipert.2012.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
49
|
The Role of the Endothelium in HPS Pathogenesis and Potential Therapeutic Approaches. Adv Virol 2012; 2012:467059. [PMID: 22811711 PMCID: PMC3395186 DOI: 10.1155/2012/467059] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 05/16/2012] [Accepted: 05/18/2012] [Indexed: 02/07/2023] Open
Abstract
American hantaviruses cause a highly lethal acute pulmonary edema termed hantavirus pulmonary syndrome (HPS). Hantaviruses nonlytically infect endothelial cells and cause dramatic changes in barrier functions of the endothelium without disrupting the endothelium. Instead hantaviruses cause changes in the function of infected endothelial cells that normally regulate fluid barrier functions of capillaries. The endothelium of arteries, veins, and lymphatic vessels is unique and central to the function of vast pulmonary capillary beds, which regulate pulmonary fluid accumulation. The endothelium maintains vascular barrier functions through a complex series of redundant receptors and signaling pathways that serve to both permit fluid and immune cell efflux into tissues and restrict tissue edema. Infection of the endothelium provides several mechanisms for hantaviruses to alter capillary permeability but also defines potential therapeutic targets for regulating acute pulmonary edema and HPS disease. Here we discuss interactions of HPS causing hantaviruses with the endothelium, potential endothelial cell-directed permeability mechanisms, and therapeutic targeting of the endothelium as a means of reducing the severity of HPS disease.
Collapse
|
50
|
Protocadherin-12 deficiency leads to modifications in the structure and function of arteries in mice. ACTA ACUST UNITED AC 2011; 60:34-40. [PMID: 22205043 DOI: 10.1016/j.patbio.2011.11.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 10/30/2011] [Indexed: 11/20/2022]
Abstract
We studied the role of protocadherin-12 on arterial function. This protein belongs to the cadherin superfamily and is located at the intercellular junctions of endothelial cells where it promotes homotypic cellular adhesion. We previously showed that mice deficient for PCDH12 exhibited developmental growth retardation owing to placenta defects without altering neither survival nor fertility. Here, we investigated the effects of PCDH12 deficiency on the structural, mechanical properties and functionality of arteries from adult mice. Histological studies of the PCDH12(-/-) mouse arteries have shown age-independent modifications such as ramifications of medial elastic lamellae, accompanied by the appearance of radial fibers linking together two successive concentric elastic lamellae. Mechanical studies also revealed some age-independent modifications in the PCDH12(-/-) mice arteries such as an increase in inner-diameter and circumferential mid-wall stress. Moreover, the PCDH12(-/-) mice exhibited a mild reduction of blood pressure, thus maintaining the inner-diameter close to its normal value and a normal circumferential wall stress for vascular cells. This is likely a compensation mechanism enabling normal blood flow in the arteries. The vascular phenotypic differences observed between PCDH12(-/-) and wild type mice arteries did not seem to be age-dependent, except for some results regarding the carotid artery: the reactivity to acetylcholine and the circumferential mid-wall stress decreased with ageing in the PCDH12(-/-) mice, as opposed to the increase observed in the wild types. In conclusion, deficiency in one specific interendothelial junction component leads to significant changes in the structure and function of the vascular wall. Possible explanations for the observed modifications are discussed.
Collapse
|