1
|
Ji W, Wan T, Zhang F, Guo S, Mei X. The Role of AGGF1 in the Classification and Evaluating Prognosis of Adult Septic Patients: An Observational Study. Infect Drug Resist 2024; 17:1153-1160. [PMID: 38529068 PMCID: PMC10962459 DOI: 10.2147/idr.s447922] [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: 11/02/2023] [Accepted: 02/27/2024] [Indexed: 03/27/2024] Open
Abstract
Purpose Angiogenic factor with G patch and FHA domains 1 (AGGF1) is a crucial angiogenic factor that is involved in a variety of diseases and in the regulation of inflammatory responses. However, its role in sepsis is poorly understood. We have investigated the role of AGGF1 in the classification and prognostic evaluation of adult septic patients in a clinical context. Patients and Methods A total of 126 septic patients who visited the Emergency Department of Beijing Chao-Yang Hospital and 76 non-sepsis patients visiting the Physical Examination Center of Beijing Chao-Yang Hospital were enrolled. AGGF1 levels in plasma were detected by enzyme-linked immunosorbent assay. Spearman correlation analysis was used to determine correlations between plasma AGGF1 and Sequential Organ Failure Assessment (SOFA) score, Acute Pathology and Chronic Health Evaluation II (APACHE II) score, procalcitonin and lactate. We evaluated the classification significance of AGGF1 in sepsis using receiver operating characteristic (ROC) curves. We also assessed the predictive significance of AGGF1 for 28-day mortality in sepsis using ROC curves and Kaplan-Meier analyses. Results Plasma AGGF1 levels were higher in sepsis patients than in non-sepsis patients (P < 0.001). Among sepsis patients, plasma AGGF1 levels were higher in non-survivors than in survivors (P < 0.001). Increased plasma AGGF1 levels were positively correlated with SOFA score, APACHE II score, procalcitonin and lactate. Plasma AGGF1 levels could distinguish sepsis patients from non-sepsis patients (area under the curve [AUC] = 0.777). AGGF1 had a higher predictive value than SOFA score, APACHE II score, lactate, procalcitonin, and white blood cell count for 28-day mortality in patients with sepsis (AUC = 0.876). Furthermore, Kaplan-Meier analysis indicated that lower plasma AGGF1 levels were associated with lower 28-day mortality compared with higher plasma AGGF1 levels (log rank P < 0.001). Conclusion AGGF1 is useful for the classification and evaluating prognosis of adult septic patients.
Collapse
Affiliation(s)
- Wenqing Ji
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Tiantian Wan
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Fang Zhang
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Shubin Guo
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| | - Xue Mei
- Department of Emergency Medicine, Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, People’s Republic of China
| |
Collapse
|
2
|
Webster KA. Translational Relevance of Advanced Age and Atherosclerosis in Preclinical Trials of Biotherapies for Peripheral Artery Disease. Genes (Basel) 2024; 15:135. [PMID: 38275616 PMCID: PMC10815340 DOI: 10.3390/genes15010135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/08/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Approximately 6% of adults worldwide suffer from peripheral artery disease (PAD), primarily caused by atherosclerosis of lower limb arteries. Despite optimal medical care and revascularization, many PAD patients remain symptomatic and progress to critical limb ischemia (CLI) and risk major amputation. Delivery of pro-angiogenic factors as proteins or DNA, stem, or progenitor cells confers vascular regeneration and functional recovery in animal models of CLI, but the effects are not well replicated in patients and no pro-angiogenic biopharmacological procedures are approved in the US, EU, or China. The reasons are unclear, but animal models that do not represent clinical PAD/CLI are implicated. Consequently, it is unclear whether the obstacles to clinical success lie in the toxic biochemical milieu of human CLI, or in procedures that were optimized on inappropriate models. The question is significant because the former case requires abandonment of current strategies, while the latter encourages continued optimization. These issues are discussed in the context of relevant preclinical and clinical data, and it is concluded that preclinical mouse models that include age and atherosclerosis as the only comorbidities that are consistently present and active in clinical trial patients are necessary to predict clinical success. Of the reviewed materials, no biopharmacological procedure that failed in clinical trials had been tested in animal models that included advanced age and atherosclerosis relevant to PAD/CLI.
Collapse
Affiliation(s)
- Keith A. Webster
- Vascular Biology Institute, University of Miami, Miami, FL 33146, USA;
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX 77030, USA
| |
Collapse
|
3
|
He Z, Song Q, Yu Y, Liu F, Zhao J, Un W, Da X, Xu C, Yao Y, Wang QK. Protein therapy of skeletal muscle atrophy and mechanism by angiogenic factor AGGF1. J Cachexia Sarcopenia Muscle 2023; 14:978-991. [PMID: 36696895 PMCID: PMC10067473 DOI: 10.1002/jcsm.13179] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 11/21/2022] [Accepted: 01/02/2023] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Skeletal muscle atrophy is a common condition without a pharmacologic therapy. AGGF1 encodes an angiogenic factor that regulates cell differentiation, proliferation, migration, apoptosis, autophagy and endoplasmic reticulum stress, promotes vasculogenesis and angiogenesis and successfully treats cardiovascular diseases. Here, we report the important role of AGGF1 in the pathogenesis of skeletal muscle atrophy and attenuation of muscle atrophy by AGGF1. METHODS In vivo studies were carried out in impaired leg muscles from patients with lumbar disc herniation, two mouse models for skeletal muscle atrophy (denervation and cancer cachexia) and heterozygous Aggf1+/- mice. Mouse muscle atrophy phenotypes were characterized by body weight and myotube cross-sectional areas (CSA) using H&E staining and immunostaining for dystrophin. Molecular mechanistic studies include co-immunoprecipitation (Co-IP), western blotting, quantitative real-time PCR analysis and immunostaining analysis. RESULTS Heterozygous Aggf1+/- mice showed exacerbated phenotypes of reduced muscle mass, myotube CSA, MyHC (myosin heavy chain) and α-actin, increased inflammation (macrophage infiltration), apoptosis and fibrosis after denervation and cachexia. Intramuscular and intraperitoneal injection of recombinant AGGF1 protein attenuates atrophy phenotypes in mice with denervation (gastrocnemius weight 81.3 ± 5.7 mg vs. 67.3 ± 5.1 mg for AGGF1 vs. buffer; P < 0.05) and cachexia (133.7 ± 4.7 vs. 124.3 ± 3.2; P < 0.05). AGGF1 expression undergoes remodelling and is up-regulated in gastrocnemius and soleus muscles from atrophy mice and impaired leg muscles from patients with lumbar disc herniation by 50-60% (P < 0.01). Mechanistically, AGGF1 interacts with TWEAK (tumour necrosis factor-like weak inducer of apoptosis), which reduces interaction between TWEAK and its receptor Fn14 (fibroblast growth factor-inducing protein 14). This leads to inhibition of Fn14-induced NF-kappa B (NF-κB) p65 phosphorylation, which reduces expression of muscle-specific E3 ubiquitin ligase MuRF1 (muscle RING finger 1), resulting in increased MyHC and α-actin and partial reversal of atrophy phenotypes. Autophagy is reduced in Aggf1+/- mice due to inhibition of JNK (c-Jun N-terminal kinase) activation in denervated and cachectic muscles, and AGGF1 treatment enhances autophagy in two atrophy models by activating JNK. In impaired leg muscles of patients with lumbar disc herniation, MuRF1 is up-regulated and MyHC and α-actin are down-regulated; these effects are reversed by AGGF1 by 50% (P < 0.01). CONCLUSIONS These results indicate that AGGF1 is a novel regulator for the pathogenesis of skeletal muscle atrophy and attenuates skeletal muscle atrophy by promoting autophagy and inhibiting MuRF1 expression through a molecular signalling pathway of AGGF1-TWEAK/Fn14-NF-κB. More importantly, the results indicate that AGGF1 protein therapy may be a novel approach to treat patients with skeletal muscle atrophy.
Collapse
Affiliation(s)
- Zuhan He
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Qixue Song
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yubing Yu
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Liu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jinyan Zhao
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Waikeong Un
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingwen Da
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Chengqi Xu
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yufeng Yao
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Qing K Wang
- Center for Human Genome Research, Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
4
|
Bai C, Wang J, Li J. Transcription factor GATA1 represses oxidized-low density lipoprotein-induced pyroptosis of human coronary artery endothelial cells. Clin Hemorheol Microcirc 2022; 83:81-92. [PMID: 36120774 DOI: 10.3233/ch-221536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Atherosclerosis (AS) is defined as a chronic inflammatory disorder underly the pathogenesis of cardiovascular diseases (CVDs). Endothelial pyroptosis is associated with AS-like diseases and other CVDs. OBJECTIVE This work was designed to expound on the effect of GATA-binding protein 1 (GATA1) on pyroptosis of human coronary artery endothelial cells (HCAECs) in AS. METHODS HCAECs were treated with oxidized-low density lipoprotein (ox-LDL) to establish HCAEC injury models. Plasmids for overexpressing GATA1 or silencing retinoic acid-related orphan receptor α (RORα) were transfected into HCAECs. Thereafter, the mRNA levels of GATA1 and RORα in HCAECs were detected using real-time quantitative polymerase chain reaction. HCAEC viability was examined using the cell counting kit-8 method. The levels of pyroptosis-related proteins NOD-like receptor protein 3 (NLRP3), cleaved-Caspase-1, N-terminal of gasdermin D (GSDMD-N), and pyroptosis-related inflammatory cytokines interleukin (IL)-1β and IL-18 were determined using Western blot and enzyme-linked immunosorbent assays, respectively. The targeting relationship between GATA1 and RORα was verified using the chromatin-immunoprecipitation assay. Then, the rescue experiment was conducted to explore the effect of RORα on pyroptosis of ox-LDL-treated HCAECs. RESULTS In ox-LDL-treated HCAECs, GATA1 and RORα expressions were decreased, HCAEC viability was reduced, and the levels of NLRP3, cleaved-Caspase1, GSDMD-N, IL-1β, and IL-18 were elevated. GATA1 overexpression increased HCAEC viability and attenuated pyroptosis. GATA1 bound to the RORα promoter region to stimulate RORα transcription, and RORα suppression facilitated ox-LDL-induced pyroptosis of HCAECs. CONCLUSIONS GATA1 activated RORα transcription and therefore limited pyroptosis of ox-LDL-treated HCAECs.
Collapse
Affiliation(s)
- Chen Bai
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Beijing, China
| | - Jiangang Wang
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Beijing, China
| | - Jingxing Li
- Department of Cardiac Surgery, Beijing Anzhen Hospital, Beijing, China
| |
Collapse
|
5
|
He L, Lu H, Chu J, Qin X, Gao J, Chen M, Weinstein LS, Yang J, Zhang Q, Zhang C, Zhang W. Endothelial G protein stimulatory α-subunit is a critical regulator of post-ischemic angiogenesis. Front Cardiovasc Med 2022; 9:941946. [PMID: 35958407 PMCID: PMC9358140 DOI: 10.3389/fcvm.2022.941946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/05/2022] [Indexed: 11/13/2022] Open
Abstract
Post-ischemic angiogenesis is a vital pathophysiological process in diseases such as peripheral arterial disease (PAD), heart ischemia, and diabetic retinopathy. The molecular mechanisms of post-ischemic angiogenesis are complicated and not fully elucidated. The G protein stimulatory alpha subunit (Gsα) is essential for hormone-stimulated cyclic adenosine monophosphate (cAMP) production and is an important regulator for many physiological processes. In the present study, we investigated the role of endothelial Gsα in post-ischemic angiogenesis by generating adult mice with endothelial-specific Gsα deficiency (GsαECKO). GsαECKO mice had impaired blood flow recovery after hind limb ischemic injury, and reduced neovascularization in allograft transplanted tumors. Mechanically, Gsα could regulate the expression of angiogenic factor with G patch and FHA domains 1 (AGGF1) through cAMP/CREB pathway. AGGF1 plays a key role in angiogenesis and regulates endothelial cell proliferation as well as migration. Knockdown of CREB or mutation of the CRE site on the AGGF1 promoter led to reduced AGGF1 promoter activity. In addition, knockdown of AGGF1 reduced the proangiogenic effect of Gsα in endothelial cells, and overexpression of AGGF1 reversed the impaired angiogenesis in GsαECKO mice in vivo. The finding may prove useful in designing new therapeutic targets for treatments of post-ischemic angiogenesis-related diseases.
Collapse
Affiliation(s)
- Lifan He
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Hanlin Lu
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Cardiovascular Disease Research Center of Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Jianying Chu
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, China
| | - Xiaoteng Qin
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jiangang Gao
- School of Life Sciences and Key Laboratory of the Ministry of Education for Experimental Teratology, Shandong University, Jinan, China
| | - Min Chen
- Metabolic Diseases Branch, National Institute of Diabetes, Digestive, and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Lee S. Weinstein
- Metabolic Diseases Branch, National Institute of Diabetes, Digestive, and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Jianmin Yang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qunye Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Cheng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wencheng Zhang
- The Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education, Chinese National Health Commission and Chinese Academy of Medical Sciences, The State and Shandong Province Joint Key Laboratory of Translational Cardiovascular Medicine, Department of Cardiology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Cardiovascular Disease Research Center of Shandong First Medical University, Central Hospital Affiliated to Shandong First Medical University, Jinan, China
- *Correspondence: Wencheng Zhang,
| |
Collapse
|
6
|
Han J, Luo L, Marcelina O, Kasim V, Wu S. Therapeutic angiogenesis-based strategy for peripheral artery disease. Theranostics 2022; 12:5015-5033. [PMID: 35836800 PMCID: PMC9274744 DOI: 10.7150/thno.74785] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/14/2022] [Indexed: 01/12/2023] Open
Abstract
Peripheral artery disease (PAD) poses a great challenge to society, with a growing prevalence in the upcoming years. Patients in the severe stages of PAD are prone to amputation and death, leading to poor quality of life and a great socioeconomic burden. Furthermore, PAD is one of the major complications of diabetic patients, who have higher risk to develop critical limb ischemia, the most severe manifestation of PAD, and thus have a poor prognosis. Hence, there is an urgent need to develop an effective therapeutic strategy to treat this disease. Therapeutic angiogenesis has raised concerns for more than two decades as a potential strategy for treating PAD, especially in patients without option for surgery-based therapies. Since the discovery of gene-based therapy for therapeutic angiogenesis, several approaches have been developed, including cell-, protein-, and small molecule drug-based therapeutic strategies, some of which have progressed into the clinical trial phase. Despite its promising potential, efforts are still needed to improve the efficacy of this strategy, reduce its cost, and promote its worldwide application. In this review, we highlight the current progress of therapeutic angiogenesis and the issues that need to be overcome prior to its clinical application.
Collapse
Affiliation(s)
- Jingxuan Han
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
| | - Lailiu Luo
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
| | - Olivia Marcelina
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China
| | - Vivi Kasim
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.,✉ Corresponding authors: Vivi Kasim, College of Bioengineering, Chongqing University, Chongqing, China; Phone: +86-23-65112672, Fax: +86-23-65111802, ; Shourong Wu, College of Bioengineering, Chongqing University, Chongqing, China; Phone: +86-23-65111632, Fax: +86-23-65111802,
| | - Shourong Wu
- The Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China.,State and Local Joint Engineering Laboratory for Vascular Implants, Chongqing 400044, China.,The 111 Project Laboratory of Biomechanics and Tissue Repair, College of Bioengineering, Chongqing University, Chongqing 400044, China.,✉ Corresponding authors: Vivi Kasim, College of Bioengineering, Chongqing University, Chongqing, China; Phone: +86-23-65112672, Fax: +86-23-65111802, ; Shourong Wu, College of Bioengineering, Chongqing University, Chongqing, China; Phone: +86-23-65111632, Fax: +86-23-65111802,
| |
Collapse
|
7
|
Transcriptional and Epigenetic Factors Associated with Early Thrombosis of Femoral Artery Involved in Arteriovenous Fistula. Proteomes 2022; 10:proteomes10020014. [PMID: 35645372 PMCID: PMC9149803 DOI: 10.3390/proteomes10020014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023] Open
Abstract
Arteriovenous fistulas (AVFs), created for hemodialysis in end-stage renal disease patients, mature through the outward remodeling of the outflow vein. However, early thrombosis and chronic inflammation are detrimental to the process of AVF maturation and precipitate AVF maturation failure. For the successful remodeling of the outflow vein, blood flow through the fistula is essential, but early arterial thrombosis attenuates this blood flow, and the vessels become thrombosed and stenosed, leading to AVF failure. The altered expression of various proteins involved in maintaining vessel patency or thrombosis is regulated by genes of which the expression is regulated by transcription factors and microRNAs. In this study, using thrombosed and stenosed arteries following AVF creation, we delineated transcription factors and microRNAs associated with differentially expressed genes in bulk RNA sequencing data using upstream and causal network analysis. We observed changes in many transcription factors and microRNAs that are involved in angiogenesis; vascular smooth muscle cell proliferation, migration, and phenotypic changes; endothelial cell function; hypoxia; oxidative stress; vessel remodeling; immune responses; and inflammation. These factors and microRNAs play a critical role in the underlying molecular mechanisms in AVF maturation. We also observed epigenetic factors involved in gene regulation associated with these molecular mechanisms. The results of this study indicate the importance of investigating the transcriptional and epigenetic regulation of AVF maturation and maturation failure and targeting factors precipitating early thrombosis and stenosis.
Collapse
|
8
|
Jeong HS, Lee DH, Kim SH, Lee CH, Shin HM, Kim HR, Cho CH. Hyperglycemia-induced oxidative stress promotes tumor metastasis by upregulating vWF expression in endothelial cells through the transcription factor GATA1. Oncogene 2022; 41:1634-1646. [DOI: 10.1038/s41388-022-02207-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/06/2022] [Accepted: 01/20/2022] [Indexed: 01/16/2023]
|
9
|
Yao Y, Song Q, Hu C, Da X, Yu Y, He Z, Xu C, Chen Q, Wang QK. Endothelial cell metabolic memory causes cardiovascular dysfunction in diabetes. Cardiovasc Res 2022; 118:196-211. [PMID: 33483741 DOI: 10.1093/cvr/cvab013] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 09/23/2020] [Accepted: 01/08/2021] [Indexed: 12/12/2022] Open
Abstract
AIMS The aim of this study was to identify the molecular mechanism for hyperglycaemia-induced metabolic memory in endothelial cells (ECs), and to show its critical importance to development of cardiovascular dysfunction in diabetes. METHODS AND RESULTS Hyperglycaemia induces increased nuclear factor-κB (NF-κB) signalling, up-regulation of miR-27a-3p, down-regulation of nuclear factor erythroid-2 related factor 2 (NRF2) expression, increased transforming growth factor-β (TGF-β) signalling, down-regulation of miR-29, and induction of endothelial-to-mesenchymal transition (EndMT), all of which are memorized by ECs and not erased when switched to a low glucose condition, thereby causing perivascular fibrosis and cardiac dysfunction. Similar metabolic memory effects are found for production of nitric oxide (NO), generation of reactive oxygen species (ROS), and the mitochondrial oxygen consumption rate in two different types of ECs. The observed metabolic memory effects in ECs are blocked by NRF2 activator tert-butylhydroquinone and a miR-27a-3p inhibitor. In vivo, the NRF2 activator and miR-27a-3p inhibitor block cardiac perivascular fibrosis and restore cardiovascular function by decreasing NF-κB signalling, down-regulating miR-27a-3p, up-regulating NRF2 expression, reducing TGF-β signalling, and inhibiting EndMT during insulin treatment of diabetes in streptozotocin-induced diabetic mice, whereas insulin alone does not improve cardiac function. CONCLUSIONS Our data indicate that disruption of hyperglycaemia-induced EC metabolic memory is required for restoring cardiac function during treatment of diabetes, and identify a novel molecular signalling pathway of NF-κB/miR-27a-3p/NRF2/ROS/TGF-β/EndMT involved in metabolic memory.
Collapse
Affiliation(s)
- Yufeng Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Qixue Song
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Changqing Hu
- Department of Physiology, School of Basic Medicine Science, Hubei University of Medicine, Shiyan, 442000 Hubei, China
| | - Xingwen Da
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Yubing Yu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Zuhan He
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Qiuyun Chen
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44195, USA
| | - Qing K Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH 44195, USA
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| |
Collapse
|
10
|
Sun Y, Chen W, Torphy RJ, Yao S, Zhu G, Lin R, Lugano R, Miller EN, Fujiwara Y, Bian L, Zheng L, Anand S, Gao F, Zhang W, Ferrara SE, Goodspeed AE, Dimberg A, Wang XJ, Edil BH, Barnett CC, Schulick RD, Chen L, Zhu Y. Blockade of the CD93 pathway normalizes tumor vasculature to facilitate drug delivery and immunotherapy. Sci Transl Med 2021; 13:eabc8922. [PMID: 34321321 PMCID: PMC8749958 DOI: 10.1126/scitranslmed.abc8922] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 03/23/2021] [Accepted: 05/20/2021] [Indexed: 12/13/2022]
Abstract
The immature and dysfunctional vascular network within solid tumors poses a substantial obstacle to immunotherapy because it creates a hypoxic tumor microenvironment that actively limits immune cell infiltration. The molecular basis underpinning this vascular dysfunction is not fully understood. Using genome-scale receptor array technology, we showed here that insulin-like growth factor binding protein 7 (IGFBP7) interacts with its receptor CD93, and we subsequently demonstrated that this interaction contributes to abnormal tumor vasculature. Both CD93 and IGFBP7 were up-regulated in tumor-associated endothelial cells. IGFBP7 interacted with CD93 via a domain different from multimerin-2, the known ligand for CD93. In two mouse tumor models, blockade of the CD93/IGFBP7 interaction by monoclonal antibodies promoted vascular maturation to reduce leakage, leading to reduced tumor hypoxia and increased tumor perfusion. CD93 blockade in mice increased drug delivery, resulting in an improved antitumor response to gemcitabine or fluorouracil. Blockade of the CD93 pathway triggered a substantial increase in intratumoral effector T cells, thereby sensitizing mouse tumors to immune checkpoint therapy. Last, analysis of samples from patients with cancer under anti-programmed death 1/programmed death-ligand 1 treatment revealed that overexpression of the IGFBP7/CD93 pathway was associated with poor response to therapy. Thus, our study identified a molecular interaction involved in tumor vascular dysfunction and revealed an approach to promote a favorable tumor microenvironment for therapeutic intervention.
Collapse
Affiliation(s)
- Yi Sun
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Wei Chen
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Cancer Institute of Integrated Traditional Chinese and Western Medicine, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang 310012, P. R. China
| | - Robert J Torphy
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Sheng Yao
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gefeng Zhu
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Ronggui Lin
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Roberta Lugano
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Emily N Miller
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Yuki Fujiwara
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Li Bian
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Linghua Zheng
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Sudarshan Anand
- Department of Cell, Development and Cancer Biology, Oregon Health and Science University, Portland, OR 97239, USA
| | - Fan Gao
- Caltech Bioinformatics Resource Center at Beckman Institute, California Institute of Technology, Pasadena, CA 91125, USA
| | - Weizhou Zhang
- Department of Pathology, University of Florida, Gainesville, FL 32610, USA
| | - Sarah E Ferrara
- University of Colorado Comprehensive Cancer Center, Aurora, CO 80045, USA
| | - Andrew E Goodspeed
- University of Colorado Comprehensive Cancer Center, Aurora, CO 80045, USA
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Anna Dimberg
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden
| | - Xiao-Jing Wang
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
- Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, CO 80045, USA
| | - Barish H Edil
- Department of Surgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Carlton C Barnett
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Richard D Schulick
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Lieping Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Yuwen Zhu
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
| |
Collapse
|
11
|
Luo C, Tang B, Qin S, Yuan C, Du Y, Yang J. GATA2 regulates the CAD susceptibility gene ADTRP rs6903956 through preferential interaction with the G allele. Mol Genet Genomics 2021; 296:799-808. [PMID: 33856550 DOI: 10.1007/s00438-021-01782-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
Myocardial infarction (MI) is a frequent outcome of coronary artery disease (CAD) and the key factor contributing to worldwide disability and death. Genetic factors contribute to the pathogenesis of CAD/MI, and SNP rs6903956 in the ADTRP gene was first found associated with CAD/MI in the Chinese Han population, which was successfully replicated in other cohorts. However, whether rs6903956 is a functional SNP and its risk mechanism to CAD/MI remains unknown. The ADTRP gene-encoded androgen-dependent TFPI regulating protein regulates vascular endothelial cell function, endothelial-monocyte adhesion, and thrombosis. The allele A of rs6903956, in particular, is associated with lower ADTRP mRNA levels in lymphocytes. In the current study, we found that SNP rs6903956 exhibits allelic differences in transcriptional activity by interacting with GATA2. Also, the A allele conferred a greater risk of CAD and MI, lowered transcriptional activity, and GATA2 binding ability as compared to the G allele. Our findings provide details on how rs6903956 regulates the expression of ADTRP and may provide novel insights into CAD pathology and susceptibility.
Collapse
Affiliation(s)
- Chunyan Luo
- Department of Microbiology and Immunology, Medical College, China Three Gorges University, No.8, Da Xue Road, Yichang, 443002, Hubei Province, People's Republic of China. .,The Institute of Infection and Inflammation, China Three Gorges University, Yichang, 443002, Hubei, China.
| | - Bo Tang
- Department of Pharmacology, Institute of Material Medical, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Subo Qin
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chengfu Yuan
- Department of Biochemistry, China Three Gorges University, Yichang, 443002, Hubei, China
| | - Youqin Du
- Department of Microbiology and Immunology, Medical College, China Three Gorges University, No.8, Da Xue Road, Yichang, 443002, Hubei Province, People's Republic of China
| | - Jian Yang
- Department of Cardiology, The People's Hospital of China Three Gorges University, Yichang, 443000, Hubei Province, China.
| |
Collapse
|
12
|
Angiogenic factor AGGF1 acts as a tumor suppressor by modulating p53 post-transcriptional modifications and stability via MDM2. Cancer Lett 2020; 497:28-40. [PMID: 33069768 DOI: 10.1016/j.canlet.2020.10.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 10/06/2020] [Accepted: 10/09/2020] [Indexed: 11/22/2022]
Abstract
Angiogenesis factors are widely known to promote tumor growth by increasing tumor angiogenesis in the tumor microenvironment, however, little is known whether their intracellular function is involved in tumorigenesis. Here we show that AGGF1 acts as a tumor suppressor by regulating p53 when acting inside tumor cells. AGGF1 antagonizes MDM2 function to inhibit p53 ubiquitination, increases the acetylation, phosphorylation, stability and expression levels of p53, activates transcription of p53 target genes, and regulates cell proliferation, cell cycle, and apoptosis. AGGF1 also interacts with p53 through the FHA domain. Somatic AGGF1 variants in the FHA domain in human tumors, including p.Q467H, p.Y469 N, and p.N483T, inhibit AGGF1 activity on tumor suppression. These results identify a key role for AGGF1 in an AGGF1-MDM2-p53 signaling axis with important functions in tumor suppression, and uncover a novel trans-tumor-suppression mechanism dependent on p53. This study has potential implications in diagnosis and therapies of cancer.
Collapse
|
13
|
Ma L, Yang R, Gu J, Jiang H, Li H. The expression of AGGF1, FOXC2, and E-cadherin in esophageal carcinoma and their clinical significance. Medicine (Baltimore) 2020; 99:e22173. [PMID: 32925786 PMCID: PMC7489684 DOI: 10.1097/md.0000000000022173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Angiogenic factor with G-patch and FHA domain 1 (AGGF1) is a newly initiator of angiogenesis. Forkhead box C2 (FOXC2) that is a member of the winged spiral transcription factor family plays an important role in epithelial-mesenchymal transition (EMT). Epithelial-cadherin (E-cad) that is an adhesion molecule is also involved in EMT. The purpose of this study is to investigate the expression of AGGF1, FOXC2, and E-cad in esophageal squamous cell carcinoma (ESCC) and their clinical significance.Immunohistochemistry was performed to investigate the expression of AGGF1, FOXC2, and E-cad in 170 ESCC specimens and corresponding normal esophageal mucosa tissues. Follow-up data was also collected.The positive rates of AGGF1 and FOXC2 expression were significantly higher in ESCC group when compared with the control group; the positive rate of E-cad expression was significantly lower in ESCC group when compared with the control group. Positive rates of AGGF1, FOXC2, and E-cad expression were significantly associated with grades of differentiation, tumor grades, lymph node metastasis stages, as well as tumor-node-metastasis stages. Kaplan-Meier analysis demonstrated that positive expression of AGGF1 or FOXC2 for ESCC patients had significantly unfavorably overall survival time when compared with patients with negative expression of AGGF1 or FOXC2; and positive expression of E-cad for ESCC patients had significantly longer overall survival time when compared with patients with negative expression of E-cad. Multivariate analysis indicated that AGGF1, FOXC2, and E-cad expression and tumor-node-metastasis stages were postoperative independent prognostic factors for ESCC patients.AGGF1, FOXC2, and E-cad may be considered promising biomarkers of ESCC patients' prognosis.
Collapse
Affiliation(s)
- Li Ma
- Department of Pathology
- Department of Pathology, Bengbu Medical University
| | - Ruixue Yang
- Department of Pathology
- Department of Pathology, Bengbu Medical University
| | - Jingxiang Gu
- Department of Pathology
- Department of Pathology, Bengbu Medical University
| | - Hao Jiang
- Department of Radiotherapy, the First Affiliated Hospital of Bengbu Medical University Anhui, China
| | - Hongwei Li
- Department of Radiotherapy, the First Affiliated Hospital of Bengbu Medical University Anhui, China
| |
Collapse
|
14
|
Shen S, Shang L, Liu H, Liang Q, Liang W, Ge S. AGGF1 inhibits the expression of inflammatory mediators and promotes angiogenesis in dental pulp cells. Clin Oral Investig 2020; 25:581-592. [PMID: 32789654 DOI: 10.1007/s00784-020-03498-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/03/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To determine the role of angiogenic factor with G-patch and FHA domain 1 (AGGF1) in inflammatory response of human dental pulp cells (DPCs) and the underneath mechanism and to explore its role in angiogenesis. MATERIALS AND METHODS The expression of AGGF-1 in human healthy and inflammatory pulp tissues was detected by immunohistochemistry. RT-qPCR and Western blot were used to evaluate the expression of AGGF1 in DPCs stimulated by lipopolysaccharide (LPS). After AGGF1 was knocked down, the expression of LPS-induced inflammatory cytokines in DPCs was quantified by RT-qPCR and ELISA. Immunofluorescence and Western blot were used to assess the activation of NF-κB signaling. Inflammatory cytokines were detected by RT-qPCR and ELISA in DPCs pretreated with NF-κB pathway inhibitors before LPS stimulation, and then the effect of AGGF1 on angiogenesis was also evaluated. RESULTS AGGF1 expression increased in inflammatory dental pulp tissues. In DPCs stimulated by LPS, AGGF1 was upregulated in a dose-dependent manner (P < 0.05). In AGGF1 knockdown cells, the expression of IL-6, IL-8, and monocyte chemoattractant protein-1 (MCP-1/CCL-2) increased by LPS stimulation (P < 0.001). Nuclear translocation of p65 was promoted, and the addition of NF-κB inhibitors inhibited the expression of inflammatory factors. Meanwhile, knockdown of AGGF1 inhibited vascularization. CONCLUSIONS AGGF1 inhibited the synthesis of inflammatory cytokines through NF-κB signaling pathway and promoted the angiogenesis of DPCs. CLINICAL RELEVANCE This study might shed light in the treatment of pulpitis and regeneration of dental pulp tissues; however, more clinical trials are required to validate these findings.
Collapse
Affiliation(s)
- Song Shen
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Lingling Shang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Hongrui Liu
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Qianyu Liang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Wei Liang
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, No. 44-1 Wenhua Road West, 250012, Jinan, People's Republic of China.
| |
Collapse
|
15
|
Luo C, Pook E, Wang F, Archacki SR, Tang B, Zhang W, Hu JS, Yang J, Leineweber K, Bechem M, Huang W, Song Y, Cheung SH, Laux V, Ke T, Ren X, Tu X, Chen Q, Wang QK, Xu C. ADTRP regulates TFPI expression via transcription factor POU1F1 involved in coronary artery disease. Gene 2020; 753:144805. [PMID: 32445923 DOI: 10.1016/j.gene.2020.144805] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/15/2020] [Accepted: 05/20/2020] [Indexed: 12/18/2022]
Abstract
Genomic variants in both ADTRP and TFPI genes are associated with risk of coronary artery disease (CAD). ADTRP regulates TFPI expression and endothelial cell functions involved in the initiation of atherosclerotic CAD. ADTRP also specifies primitive myelopoiesis and definitive hematopoiesis by upregulating TFPI expression. However, the underlying molecular mechanism is unknown. Here we show that transcription factor POU1F1 is the key by which ADTRP regulates TFPI expression. Luciferase reporter assays, chromatin-immunoprecipitation (ChIP) and electrophoretic mobility shift assay (EMSA) in combination with analysis of large and small deletions of the TFPI promoter/regulatory region were used to identify the molecular mechanism by which ADTRP regulates TFPI expression. Genetic association was assessed using case-control association analysis and phenome-wide association analysis (PhenGWA). ADTRP regulates TFPI expression at the transcription level in a dose-dependent manner. The ADTRP-response element was localized to a 50 bp region between -806 bp and -756 bp upstream of TFPI transcription start site, which contains a binding site for POU1F1. Deletion of POU1F1-binding site or knockdown of POU1F1 expression abolished ADTRP-mediated transcription of TFPI. ChIP and EMSA demonstrated that POU1F1 binds to the ADTRP response element. Genetic analysis identified significant association between POU1F1 variants and risk of CAD. PhenGWA identified other phenotypic traits associated with the ADTRP-POU1F1-TFPI axis such as lymphocyte count (ADTRP), waist circumference (TFPI), and standing height (POU1F1). These data identify POU1F1 as a transcription factor that regulates TFPI transcription in response to ADTRP, and link POU1F1 variants to risk of CAD for the first time.
Collapse
Affiliation(s)
- Chunyan Luo
- The Institute of Infection and Inflammation, Department of Microbiology and Immunology, Medical College, Key Laboratory of Ischemic Cardiovascular and Cerebrovascular Disease Translational Medicine, China Three Gorges University, Yichang, Hubei 443002, PR China; Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | | | - Fan Wang
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Stephen R Archacki
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Bo Tang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Weiyi Zhang
- Bayer Healthcare Co Ltd, Innovation Center China, Beijing, PR China
| | - Jing-Shan Hu
- Bayer Healthcare Co Ltd, Innovation Center China, Beijing, PR China
| | - Jian Yang
- The Institute of Infection and Inflammation, Department of Microbiology and Immunology, Medical College, Key Laboratory of Ischemic Cardiovascular and Cerebrovascular Disease Translational Medicine, China Three Gorges University, Yichang, Hubei 443002, PR China
| | | | | | - Weifeng Huang
- The Institute of Infection and Inflammation, Department of Microbiology and Immunology, Medical College, Key Laboratory of Ischemic Cardiovascular and Cerebrovascular Disease Translational Medicine, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Yinhong Song
- The Institute of Infection and Inflammation, Department of Microbiology and Immunology, Medical College, Key Laboratory of Ischemic Cardiovascular and Cerebrovascular Disease Translational Medicine, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Shing-Hu Cheung
- Bayer Healthcare Co Ltd, Innovation Center China, Beijing, PR China
| | - Volker Laux
- BayerAG, Drug Discovery, 42096 Wuppertal, Germany
| | - Tie Ke
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Xiang Ren
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Xin Tu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Qiuyun Chen
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44195, USA.
| | - Qing Kenneth Wang
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH 44195, USA.
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| |
Collapse
|
16
|
Noack C, Iyer LM, Liaw NY, Schoger E, Khadjeh S, Wagner E, Woelfer M, Zafiriou MP, Milting H, Sossalla S, Streckfuss-Boemeke K, Hasenfuß G, Zimmermann WH, Zelarayán LC. KLF15-Wnt-Dependent Cardiac Reprogramming Up-Regulates SHISA3 in the Mammalian Heart. J Am Coll Cardiol 2020; 74:1804-1819. [PMID: 31582141 DOI: 10.1016/j.jacc.2019.07.076] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 05/31/2019] [Accepted: 07/12/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND The combination of cardiomyocyte (CM) and vascular cell (VC) fetal reprogramming upon stress culminates in end-stage heart failure (HF) by mechanisms that are not fully understood. Previous studies suggest KLF15 as a key regulator of CM hypertrophy. OBJECTIVES This study aimed to characterize the impact of KLF15-dependent cardiac transcriptional networks leading to HF progression, amenable to therapeutic intervention in the adult heart. METHODS Transcriptomic bioinformatics, phenotyping of Klf15 knockout mice, Wnt-signaling-modulated hearts, and pressure overload and myocardial ischemia models were applied. Human KLF15 knockout embryonic stem cells and engineered human myocardium, and human samples were used to validate the relevance of the identified mechanisms. RESULTS The authors identified a sequential, postnatal transcriptional repression mediated by KLF15 of pathways implicated in pathological tissue remodeling, including distinct Wnt-pathways that control CM fetal reprogramming and VC remodeling. The authors further uncovered a vascular program induced by a cellular crosstalk initiated by CM, characterized by a reduction of KLF15 and a concomitant activation of Wnt-dependent transcriptional signaling. Within this program, a so-far uncharacterized cardiac player, SHISA3, primarily expressed in VCs in fetal hearts and pathological remodeling was identified. Importantly, the KLF15 and Wnt codependent SHISA3 regulation was demonstrated to be conserved in mouse and human models. CONCLUSIONS The authors unraveled a network interplay defined by KLF15-Wnt dynamics controlling CM and VC homeostasis in the postnatal heart and demonstrated its potential as a cardiac-specific therapeutic target in HF. Within this network, they identified SHISA3 as a novel, evolutionarily conserved VC marker involved in pathological remodeling in HF.
Collapse
Affiliation(s)
- Claudia Noack
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Research & Development, Pharmaceuticals, Bayer AG, Berlin, Germany
| | - Lavanya M Iyer
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Computational and Systems Biology, Genome Institute of Singapore (GIS), Singapore
| | - Norman Y Liaw
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany
| | - Eric Schoger
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany
| | - Sara Khadjeh
- DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Department of Cardiology and Pneumology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany
| | - Eva Wagner
- DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Department of Cardiology and Pneumology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany
| | - Monique Woelfer
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany
| | - Maria-Patapia Zafiriou
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany
| | - Hendrik Milting
- Erich and Hanna Klessmann Institute, Heart and Diabetes Centre NRW, University Hospital of the Ruhr-University Bochum, Bad Oeynhausen, Germany
| | - Samuel Sossalla
- DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Department of Cardiology and Pneumology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; Department of Internal Medicine II, University Medical Center Regensburg, Regensburg, Germany
| | - Katrin Streckfuss-Boemeke
- DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Department of Cardiology and Pneumology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany
| | - Gerd Hasenfuß
- DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany; Department of Cardiology and Pneumology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany
| | - Wolfram-Hubertus Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany
| | - Laura C Zelarayán
- Institute of Pharmacology and Toxicology, University Medical Center Goettingen, Georg-August University, Goettingen, Germany; DZHK (German Center for Cardiovascular Research), partner site Goettingen, Germany.
| |
Collapse
|
17
|
Vaccarin Regulates Diabetic Chronic Wound Healing through FOXP2/AGGF1 Pathways. Int J Mol Sci 2020; 21:ijms21061966. [PMID: 32183046 PMCID: PMC7139532 DOI: 10.3390/ijms21061966] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/25/2020] [Accepted: 03/03/2020] [Indexed: 12/31/2022] Open
Abstract
Background: Diabetes mellitus is a growing global health issue nearly across the world. Diabetic patients who are prone to develop diabetes-related complications often exhibit progressive neuropathy (painless and sensory loss). It is usual for small wounds to progress to ulceration, which especially worsens with peripheral arterial disease and in the presence of anaerobic bacteria, culminating into gangrene. In our study, vaccarin (VAC), the main active monomer extracted from Chinese herb vaccariae semen, is proven to have a role in promoting diabetic chronic wound healing through a cytoprotective role under high glucose conditions. Materials and methods: We constructed a pressure ulcer on both VAC-treated and control mice based on a type 1 diabetes (T1DM) model. The wound healing index was evaluated by an experimental wound assessment tool (EWAT). We also determined the effect of VAC on the proliferation and cell migration of human microvascular endothelial cells (HMEC-1) by a cell counting kit (CCK-8), a scratch and transwell assay. Results: The results demonstrated that VAC could promote the proliferation and migration of high glucose-stimulated HMEC-1 cells, which depend on the activation of FOXP2/AGGF1. Activation of the angiogenic factor with G patch and FHA domains 1 (AGGF1) caused enhanced phosphorylation of serine/threonine kinase (Akt) and extracellular regulated protein kinases (Erk1/2). By silencing the expression of forkhead box p2 (FOXP2) protein by siRNA, both mRNA and protein expression of AGGF1 were downregulated, leading to a decreased proliferation and migration of HMEC-1 cells. In addition, a diabetic chronic wound model in vivo unveiled that VAC had a positive effect on chronic wound healing, which involved the activation of the above-mentioned pathways. Conclusions: In summary, our study found that VAC promoted chronic wound healing in T1DM mice by activating the FOXP2/AGGF1 pathway, indicating that VAC may be a promising candidate for the treatment of the chronic wounds of diabetic patients.
Collapse
|
18
|
Zhang X, Sun H, Chen W, He X. Elevated expression of AGGF1 predicts poor prognosis and promotes the metastasis of colorectal cancer. BMC Cancer 2019; 19:1252. [PMID: 31881864 PMCID: PMC6935059 DOI: 10.1186/s12885-019-6474-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 12/17/2019] [Indexed: 12/17/2022] Open
Abstract
Background Angiogenic factor with G-patch and FHA domains 1 (AGGF1) can promote angiogenesis and increasing evidence has highlighted the important roles of AGGF1 in tumorigenesis. However, the differential expression as well as the biological functions of AGGF1 in colorectal cancer (CRC) remain to be established. The purpose of the present study is therefore to identify the effect of AGGF1 on prognosis and metastasis in CRC patients. Methods The expression level of AGGF1 in CRC was examined by qPCR, western blot and immunohistochemistry in a tissue microarray containing 236 CRC specimens and paired normal mucosae. And the effect of AGGF1 on CRC cell malignance was investigated in our established stable AGGF1 upregulated and knockdown CRC cell lines. Results The expression level of AGGF1 in CRC tissue was not significantly different to that in adjacent normal mucosa at the mRNA level. However, at the protein level, AGGF1 expression in CRC tissues was significantly higher than in paired normal mucosa, which showed a clear association with TNM stage, AJCC stage, vascular invasion, and differentiation. Further, we revealed an apparent correlation between AGGF1 expression and poorer disease-free survival and overall survival of CRC patients. In addition, we discovered that AGGF1 significantly promoted CRC cell wound healing, migration, and invasion in vitro and distant metastasis in vivo. Conclusions Our study demonstrates the aberrant overexpression of AGGF1 in CRC and provides a basis on which to explore the application of AGGF1 as a potential therapeutic target for CRC patients, especially for CRC patients with distant metastasis.
Collapse
Affiliation(s)
- Xin Zhang
- Department of pathology, Zhejiang Provincial Peoples' Hospital, Peoples' Hospital of Hangzhou Medical College, Hangzhou, 310014, China
| | - Huimin Sun
- Department of pathology, Weifang People's Hospital, Weifang, 261041, China
| | - Wanyuan Chen
- Department of pathology, Zhejiang Provincial Peoples' Hospital, Peoples' Hospital of Hangzhou Medical College, Hangzhou, 310014, China.
| | - Xianglei He
- Department of pathology, Zhejiang Provincial Peoples' Hospital, Peoples' Hospital of Hangzhou Medical College, Hangzhou, 310014, China.
| |
Collapse
|
19
|
Mechanistic insights into autocrine and paracrine roles of endothelial GABA signaling in the embryonic forebrain. Sci Rep 2019; 9:16256. [PMID: 31700116 PMCID: PMC6838150 DOI: 10.1038/s41598-019-52729-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/18/2019] [Indexed: 12/24/2022] Open
Abstract
The developing cerebral cortex uses a complex developmental plan involving angiogenesis, neurogenesis and neuronal migration. Our recent studies have highlighted the importance of endothelial cell secreted GABA signaling in the embryonic forebrain and established novel autonomous links between blood vessels and the origin of neuropsychiatric diseases. A GABA pathway operates in both endothelial cells and GABAergic neurons of the embryonic telencephalon; however, while the neuronal GABA pathway has been extensively studied, little is known about the endothelial GABA pathway. Our recently generated Vgat endothelial cell knockout mouse model that blocks GABA release from endothelial cells, serves as a new tool to study how endothelial GABA signaling shapes angiogenesis and neurovascular interactions during prenatal development. Quantitative gene expression profiling reveals that the endothelial GABA signaling pathway influences genes connected to specific processes like endothelial cell proliferation, differentiation, migration, tight junction formation, vascular sprouting and integrity. It also shows how components of the neuronal GABA pathway, for instance receptor mediated signaling, cell cycle related components and transcription factors are affected in the absence of endothelial GABA release. Taken together, our findings delineate the close relationship between vascular and nervous systems that begin early in embryogenesis establishing their future interactions and interdependence.
Collapse
|
20
|
Aggf1 attenuates neuroinflammation and BBB disruption via PI3K/Akt/NF-κB pathway after subarachnoid hemorrhage in rats. J Neuroinflammation 2018; 15:178. [PMID: 29885663 PMCID: PMC5994242 DOI: 10.1186/s12974-018-1211-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 05/20/2018] [Indexed: 12/23/2022] Open
Abstract
Background Neuroinflammation and blood-brain barrier (BBB) disruption are two critical mechanisms of subarachnoid hemorrhage (SAH)-induced brain injury, which are closely related to patient prognosis. Recently, angiogenic factor with G-patch and FHA domain 1 (Aggf1) was shown to inhibit inflammatory effect and preserve vascular integrity in non-nervous system diseases. This study aimed to determine whether Aggf1 could attenuate neuroinflammation and preserve BBB integrity after experimental SAH, as well as the underlying mechanisms of its protective roles. Methods Two hundred forty-nine male Sprague-Dawley rats were subjected to the endovascular perforation model of SAH. Recombinant human Aggf1 (rh-Aggf1) was administered intravenously via tail vein injection at 1 h after SAH induction. To investigate the underlying neuroprotection mechanism, Aggf1 small interfering RNA (Aggf1 siRNA) and PI3K-specific inhibitor LY294002 were administered through intracerebroventricular (i.c.v.) before SAH induction. SAH grade, neurological score, brain water content, BBB permeability, Western blot, and immunohistochemistry were performed. Results Expression of endogenous Aggf1 was markedly increased after SAH. Aggf1 was primarily expressed in endothelial cells and astrocytes, as well as microglia after SAH. Administration of rh-Aggf1 significantly reduced brain water content and BBB permeability, decreased the numbers of infiltrating neutrophils, and activated microglia in the ipsilateral cerebral cortex following SAH. Furthermore, rh-Aggf1 treatment improved both short- and long-term neurological functions after SAH. Meanwhile, exogenous rh-Aggf1 significantly increased the expression of PI3K, p-Akt, VE-cadherin, Occludin, and Claudin-5, as well as decreased the expression of p-NF-κB p65, albumin, myeloperoxidase (MPO), TNF-α, and IL-1β. Conversely, knockdown of endogenous Aggf1 aggravated BBB breakdown, inflammatory response and neurological impairments at 24 h after SAH. Additionally, the protective roles of rh-Aggf1 were abolished by LY294002. Conclusions Taken together, exogenous Aggf1 treatment attenuated neuroinflammation and BBB disruption, improved neurological deficits after SAH in rats, at least in part through the PI3K/Akt/NF-κB pathway. Electronic supplementary material The online version of this article (10.1186/s12974-018-1211-8) contains supplementary material, which is available to authorized users.
Collapse
|
21
|
Si W, Xie W, Deng W, Xiao Y, Karnik SS, Xu C, Chen Q, Wang QK. Angiotensin II increases angiogenesis by NF-κB-mediated transcriptional activation of angiogenic factor AGGF1. FASEB J 2018; 32:5051-5062. [PMID: 29641288 DOI: 10.1096/fj.201701543rr] [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] [Indexed: 01/30/2023]
Abstract
Angiogenic factor with G-patch and FHA domains 1 (AGGF1) is involved in vascular development, angiogenesis, specification of hemangioblasts, and differentiation of veins. When mutated, however, it causes Klippel-Trenaunay syndrome, a vascular disorder. In this study, we show that angiotensin II (AngII)-the major effector of the renin-angiotensin system and one of the most important regulators of the cardiovascular system-induces the expression of AGGF1 through NF-κB, and that AGGF1 plays a key role in AngII-induced angiogenesis. AngII significantly up-regulated the levels of AGGF1 mRNA and protein in HUVECs at concentrations of 10-40 μg/ml but not >60 μg/ml. AngII type 1 receptor (AT1R) inhibitor losartan inhibited AngII-induced up-regulation of AGGF1, whereas AT2R inhibitor PD123319 further increased AngII-induced up-regulation of AGGF1. Up-regulation of AGGF1 by AngII was blocked by NF-κB inhibitors, and p65 binds directly to a binding site at the promoter/regulatory region of AGGF1 and transcriptionally activates AGGF1 expression. AngII-induced endothelial tube formation was blocked by small interfering RNAs (siRNAs) for RELA (RELA proto-oncogene, NF-κB subunit)/p65 or AGGF1, and the effect of RELA siRNA was rescued by AGGF1. AngII-induced angiogenesis from aortic rings was severely impaired in Aggf1+/- mice, and the effect was restored by AGGF1. These data suggest that AngII acts as a critical regulator of AGGF1 expression through NF-κB, and that AGGF1 plays a key role in AngII-induced angiogenesis.-Si, W., Xie, W., Deng, W., Xiao, Y., Karnik, S. S., Xu, C., Chen, Q., Wang, Q. K. Angiotensin II increases angiogenesis by NF-κB-mediated transcriptional activation of angiogenic factor AGGF1.
Collapse
Affiliation(s)
- Wenxia Si
- Key Laboratory of Molecular Biophysics-Ministry of Education, Cardio-X Institute, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory for Kidney Disease Pathogenesis and Intervention, Huangshi Central Hospital-Edong Healthcare Group, Hubei Polytechnic University School of Medicine, Huangshi, China
| | - Wen Xie
- Key Laboratory of Molecular Biophysics-Ministry of Education, Cardio-X Institute, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Wenbing Deng
- Key Laboratory of Molecular Biophysics-Ministry of Education, Cardio-X Institute, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Xiao
- College of Physics, Huazhong University of Science and Technology, Wuhan, China
| | - Sadashiva S Karnik
- Center for Cardiovascular Genetics, Cleveland Clinic, Cleveland, Ohio, USA.,Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA; and.,Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio, USA.,Department of Molecular Medicine, Cleveland Clinic Learner College of Medicine, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; and
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics-Ministry of Education, Cardio-X Institute, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Qiuyun Chen
- Center for Cardiovascular Genetics, Cleveland Clinic, Cleveland, Ohio, USA.,Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA; and.,Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio, USA.,Department of Molecular Medicine, Cleveland Clinic Learner College of Medicine, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; and
| | - Qing Kenneth Wang
- Key Laboratory of Molecular Biophysics-Ministry of Education, Cardio-X Institute, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China.,College of Physics, Huazhong University of Science and Technology, Wuhan, China.,Center for Cardiovascular Genetics, Cleveland Clinic, Cleveland, Ohio, USA.,Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA; and.,Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio, USA.,Department of Molecular Medicine, Cleveland Clinic Learner College of Medicine, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA; and.,Department of Genetics and Genome Science, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| |
Collapse
|
22
|
He Q, Zhao L, Liu Y, Liu X, Zheng J, Yu H, Cai H, Ma J, Liu L, Wang P, Li Z, Xue Y. circ-SHKBP1 Regulates the Angiogenesis of U87 Glioma-Exposed Endothelial Cells through miR-544a/FOXP1 and miR-379/FOXP2 Pathways. MOLECULAR THERAPY. NUCLEIC ACIDS 2018; 10:331-348. [PMID: 29499945 PMCID: PMC5862134 DOI: 10.1016/j.omtn.2017.12.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 11/20/2022]
Abstract
Circular RNAs (circRNAs) are a type of endogenous non-coding RNAs, which have been considered to mediate diverse tumorigenesis including angiogenesis. The present study aims to elucidate the potential role and molecular mechanism of circ-SHKBP1 in regulating the angiogenesis of U87 glioma-exposed endothelial cells (GECs). The expression of circ-SHKBP1, but not linear SHKBP1, was significantly upregulated in GECs compared with astrocyte-exposed endothelial cells (AECs). circ-SHKBP1 knockdown inhibited the viability, migration, and tube formation of GECs dramatically. The expressions of miR-379/miR-544a were downregulated in GECs, and circ-SHKBP1 functionally targeted miR-544a/miR-379 in an RNA-induced silencing complex (RISC) manner. Dual-luciferase reporter assay demonstrated that forkhead box P1/P2 (FOXP1/FOXP2) were targets of miR-544a/miR-379. The expressions of FOXP1/FOXP2 were upregulated in GECs, and silencing of FOXP1/FOXP2 inhibited the viability, migration, and tube formation of GECs. Meanwhile, FOXP1/FOXP2 promoted angiogenic factor with G patch and FHA domains 1 (AGGF1) expression at the transcriptional level. Furthermore, knockdown of AGGF1 suppressed the viability, migration, and tube formation of GECs via phosphatidylinositol 3-kinase (PI3K)/AKT and extracellular signal-regulated kinase (ERK)1/2 pathways. Taken together, the present study demonstrated that circ-SHKBP1 regulated the angiogenesis of GECs through miR-544a/FOXP1 and miR-379/FOXP2 pathways, and these findings might provide a potential target and effective strategy for combined therapy of gliomas.
Collapse
Affiliation(s)
- Qianru He
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Lini Zhao
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Hai Yu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China.
| |
Collapse
|
23
|
Yang C, Zheng J, Xue Y, Yu H, Liu X, Ma J, Liu L, Wang P, Li Z, Cai H, Liu Y. The Effect of MCM3AP-AS1/miR-211/KLF5/AGGF1 Axis Regulating Glioblastoma Angiogenesis. Front Mol Neurosci 2018; 10:437. [PMID: 29375300 PMCID: PMC5767169 DOI: 10.3389/fnmol.2017.00437] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 12/18/2017] [Indexed: 01/23/2023] Open
Abstract
Glioblastoma (GBM) is the most aggressive and malignant primary tumor. Angiogenesis plays a critical role in the progression of GBM. Previous studies have indicated that long non-coding RNAs (lncRNAs) are abnormally expressed in various cancers and participate in the regulation of the malignant behaviors of tumors. The present study demonstrated that lncRNA antisense 1 to Micro-chromosome maintenance protein 3-associated protein (MCM3AP-AS1) was upregulated whereas miR-211 was downregulated in glioma-associated endothelial cells (GECs). Knockdown of MCM3AP-AS1 suppressed the cell viability, migration, and tube formation of GECs and played a role in inhibiting angiogenesis of GBM in vitro. Furthermore, knockdown of MCM3AP-AS1 increased the expression of miR-211. Luciferase reporter assay implicated that miR-211 targeted KLF5 3'-UTR and consequently inhibited KLF5 expression. Besides, in this study we found that MCM3AP-AS1 knockdown decreased KLF5 and AGGF1 expression by upregulating miR-211. In addition, KLF5 was associated with the promoter region of AGGF1. Knockdown of KLF5 decreased AGGF1 expression by transcriptional repression, and also inhibited the activation of PI3K/AKT and ERK1/2 signaling pathways. Overall, this study reveals that MCM3AP-AS1/miR-211/KLF5/AGGF1 axis plays a prominent role in the regulation of GBM angiogenesis and also serves as new therapeutic target for the anti-angiogenic therapy of glioma.
Collapse
Affiliation(s)
- Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China
- Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, Shenyang, China
| | - Hai Yu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China
- Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, Shenyang, China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China
- Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, Shenyang, China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China
- Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, Shenyang, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
- Liaoning Research Center for Clinical Medicine in Nervous System Disease, Shenyang, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| |
Collapse
|
24
|
Transcriptome analysis of inflammation-related gene expression in endothelial cells activated by complement MASP-1. Sci Rep 2017; 7:10462. [PMID: 28874747 PMCID: PMC5585174 DOI: 10.1038/s41598-017-09058-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 07/19/2017] [Indexed: 01/15/2023] Open
Abstract
Mannan-binding lectin-associated serine protease 1 (MASP-1), the most abundant enzyme of the complement lectin pathway, is able to stimulate human umbilical vein endothelial cells (HUVECs) to alter the expression of several cytokines and adhesion molecules. This study has assessed to what extent MASP-1 is able to modify the transcriptional pattern of inflammation-related (IR) genes in HUVECs. We utilized Agilent microarray to analyse the effects of recombinant MASP-1 (rMASP-1) in HUVECs, on a set of 884 IR genes. Gene Set Enrichment Analysis showed an overall activation of inflammation-related genes in response to rMASP-1. rMASP-1 treatment up- and down-regulated 19 and 11 IR genes, respectively. Most of them were previously unidentified, such as genes of chemokines (CXCL1, CXCL2, CXCL3), inflammatory receptors (TLR2, BDKRB2) and other inflammatory factors (F3, LBP). Expression of IR genes changed early, during the first 2 hours of activation. Both p38-MAPK inhibitor and NFκB inhibitor efficiently suppressed the effect of rMASP-1. We delineated 12 transcriptional factors as possible regulators of rMASP-1-induced IR genes. Our microarray-based data are in line with the hypothesis that complement lectin pathway activation, generating active MASP-1, directly regulates inflammatory processes by shifting the phenotype of endothelial cells towards a more pro-inflammatory type.
Collapse
|
25
|
Li Q, Zhao Y, Wu G, Chen S, Zhou Y, Li S, Zhou M, Fan Q, Pu J, Hong K, Cheng X, Kenneth Wang Q, Tu X. De Novo FGF12 (Fibroblast Growth Factor 12) Functional Variation Is Potentially Associated With Idiopathic Ventricular Tachycardia. J Am Heart Assoc 2017; 6:JAHA.117.006130. [PMID: 28775062 PMCID: PMC5586455 DOI: 10.1161/jaha.117.006130] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Background Idiopathic ventricular tachycardia (VT) is a type of cardiac arrhythmia occurring in structurally normal hearts. The heritability of idiopathic VT remains to be clarified, and numerous genetic factors responsible for development of idiopathic VT are as yet unclear. Variations in FGF12 (fibroblast growth factor 12), which is expressed in the human ventricle and modulates the cardiac Na+ channel NaV1.5, may play an important role in the genetic pathogenesis of VT. Methods and Results We tested the hypothesis that genetic variations in FGF12 are associated with VT in 2 independent Chinese cohorts and resequenced all the exons and exon–intron boundaries and the 5′ and 3′ untranslated regions of FGF12 in 320 unrelated participants with idiopathic VT. For population‐based case–control association studies, we chose 3 single‐nucleotide polymorphisms—rs1460922, rs4687326, and rs2686464—which included all the exons of FGF12. The results showed that the single‐nucleotide polymorphism rs1460922 in FGF12 was significantly associated with VT after adjusting for covariates of sex and age in 2 independent Chinese populations: adjusted P=0.015 (odds ratio: 1.54 [95% CI, 1.09–2.19]) in the discovery sample, adjusted P=0.018 (odds ratio: 1.64 [95% CI, 1.09–2.48]) in the replication sample, and adjusted P=2.52E‐04 (odds ratio: 1.59 [95% CI, 1.24–2.03]) in the combined sample. After resequencing all amino acid coding regions and untranslated regions of FGF12, 5 rare variations were identified. The result of western blotting revealed that a de novo functional variation, p.P211Q (1.84% of 163 patients with right ventricular outflow tract VT), could downregulate FGF12 expression significantly. Conclusions In this study, we observed that rs1460922 of FGF12 was significantly associated with VT and identified that a de novo variation of FGF12 may be an important genetic risk factor for the pathogenesis of VT.
Collapse
Affiliation(s)
- Qianqian Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
| | - Yuanyuan Zhao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Organ Transplantation, Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology Ministry of Education and Ministry of Health, Wuhan, China
| | - Gang Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Shanshan Chen
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory for Molecular Diagnosis of Hubei Province, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yingchao Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
| | - Sisi Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
| | - Mengchen Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Fan
- The Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Jielin Pu
- State Key Laboratory of Cardiovascular Disease, Physiology and Pathophysiology Laboratory, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kui Hong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University and Jiangxi Key Laboratory of Molecular Medicine, Jiangxi, China
| | - Xiang Cheng
- The Laboratory of Cardiovascular Immunology, Institute of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Qing Kenneth Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China .,Department of Molecular Cardiology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Xin Tu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
26
|
Zhang T, Yao Y, Wang J, Li Y, He P, Pasupuleti V, Hu Z, Jia X, Song Q, Tian XL, Hu C, Chen Q, Wang QK. Haploinsufficiency of Klippel-Trenaunay syndrome gene Aggf1 inhibits developmental and pathological angiogenesis by inactivating PI3K and AKT and disrupts vascular integrity by activating VE-cadherin. Hum Mol Genet 2017; 25:5094-5110. [PMID: 27522498 DOI: 10.1093/hmg/ddw273] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/05/2016] [Indexed: 12/17/2022] Open
Abstract
Aggf1 is the first gene identified for Klippel-Trenaunay syndrome (KTS), and encodes an angiogenic factor. However, the in vivo roles of Aggf1 are incompletely defined. Here we demonstrate that Aggf1 is essential for both physiological angiogenesis and pathological tumour angiogenesis in vivo. Two lines of Aggf1 knockout (KO) mice showed a particularly severe phenotype as no homozygous embryos were observed and heterozygous mice also showed embryonic lethality (haploinsufficient lethality) observed only for Vegfa and Dll4. Aggf1+/- KO caused defective angiogenesis in yolk sacs and embryos. Survived adult heterozygous mice exhibit frequent haemorrhages and increased vascular permeability due to increased phosphorylation and reduced membrane localization of VE-cadherin. AGGF1 inhibits VE-cadherin phosphorylation, increases plasma membrane VE-cadherin in ECs and in mice, blocks vascular permeability induced by ischaemia-reperfusion (IR), restores depressed cardiac function and contraction, reduces infarct sizes, cardiac fibrosis and necrosis, haemorrhages, edema, and macrophage density associated with IR. Mechanistically, AGGF1 promotes angiogenesis by activating catalytic p110α subunit and p85α regulatory subunit of PI3K, leading to activation of AKT, GSK3β and p70S6K. AKT activation is significantly reduced in heterozygous KO mice and isolated KO ECs, which can be rescued by exogenous AGGF1. ECs from KO mice show reduced capillary angiogenesis, which is rescued by AGGF1 and AKT. Tumour growth/angiogenesis is reduced in heterozygous mice, which was associated with reduced activation of p110α, p85α and AKT. Together with recent identification of somatic mutations in p110α (encoded by PIK3CA), our data establish a potential mechanistic link between AGGF1 and PIK3CA, the two genes identified for KTS.
Collapse
Affiliation(s)
- Teng Zhang
- The Center for Cardiovascular Genetics, Department of Molecular Cardiology, NE40, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA
| | - Yufeng Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Jingjing Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Yong Li
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA
| | - Ping He
- The Center for Cardiovascular Genetics, Department of Molecular Cardiology, NE40, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA
| | - Vinay Pasupuleti
- The Center for Cardiovascular Genetics, Department of Molecular Cardiology, NE40, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA
| | - Zhengkun Hu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Xinzhen Jia
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Qixue Song
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Xiao-Li Tian
- The Center for Cardiovascular Genetics, Department of Molecular Cardiology, NE40, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA
| | - Changqing Hu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China
| | - Qiuyun Chen
- The Center for Cardiovascular Genetics, Department of Molecular Cardiology, NE40, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA
| | - Qing Kenneth Wang
- The Center for Cardiovascular Genetics, Department of Molecular Cardiology, NE40, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, OH, USA.,Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, Hubei Province, P. R. China.,Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| |
Collapse
|
27
|
Yao Y, Hu Z, Ye J, Hu C, Song Q, Da X, Yu Y, Li H, Xu C, Chen Q, Wang QK. Targeting AGGF1 (angiogenic factor with G patch and FHA domains 1) for Blocking Neointimal Formation After Vascular Injury. J Am Heart Assoc 2017. [PMID: 28649088 PMCID: PMC5669188 DOI: 10.1161/jaha.117.005889] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background Despite recent improvements in angioplasty and placement of drug‐eluting stents in treatment of atherosclerosis, restenosis and in‐stent thrombosis impede treatment efficacy and cause numerous deaths. Research efforts are needed to identify new molecular targets for blocking restenosis. We aim to establish angiogenic factor AGGF1 (angiogenic factor with G patch and FHA domains 1) as a novel target for blocking neointimal formation and restenosis after vascular injury. Methods and Results AGGF1 shows strong expression in carotid arteries; however, its expression is markedly decreased in arteries after vascular injury. AGGF1+/− mice show increased neointimal formation accompanied with increased proliferation of vascular smooth muscle cells (VSMCs) in carotid arteries after vascular injury. Importantly, AGGF1 protein therapy blocks neointimal formation after vascular injury by inhibiting the proliferation and promoting phenotypic switching of VSMCs to the contractile phenotype in mice in vivo. In vitro, AGGF1 significantly inhibits VSMCs proliferation and decreases the cell numbers at the S phase. AGGF1 also blocks platelet‐derived growth factor‐BB–induced proliferation, migration of VSMCs, increases expression of cyclin D, and decreases expression of p21 and p27. AGGF1 inhibits phenotypic switching of VSMCs to the synthetic phenotype by countering the inhibitory effect of platelet‐derived growth factor‐BB on SRF expression and the formation of the myocardin/SRF/CArG‐box complex involved in activation of VSMCs markers. Finally, we show that AGGF1 inhibits platelet‐derived growth factor‐BB–induced phosphorylation of MEK1/2, ERK1/2, and Elk phosphorylation involved in the phenotypic switching of VSMCs, and that overexpression of Elk abolishes the effect of AGGF1. Conclusions AGGF1 protein therapy is effective in blocking neointimal formation after vascular injury by regulating a novel AGGF1‐MEK1/2‐ERK1/2‐Elk‐myocardin‐SRF/p27 signaling pathway.
Collapse
Affiliation(s)
- Yufeng Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenkun Hu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Jian Ye
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Changqing Hu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Qixue Song
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Xingwen Da
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Yubin Yu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Hui Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China
| | - Qiuyun Chen
- Department of Molecular Cardiology, Center for Cardiovascular Genetics, Lerner Research Institute, Cleveland Clinic, Cleveland, OH .,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, OH
| | - Qing Kenneth Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, China .,Department of Molecular Cardiology, Center for Cardiovascular Genetics, Lerner Research Institute, Cleveland Clinic, Cleveland, OH.,Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Cleveland, OH.,Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH
| |
Collapse
|
28
|
Chromosomal integration of HHV-6A during non-productive viral infection. Sci Rep 2017; 7:512. [PMID: 28360414 PMCID: PMC5428774 DOI: 10.1038/s41598-017-00658-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 03/07/2017] [Indexed: 11/28/2022] Open
Abstract
Human herpesvirus 6A (HHV-6A) and 6B (HHV-6B) are two different species of betaherpesviruses that integrate into sub-telomeric ends of human chromosomes, for which different prevalence rates of integration have been reported. It has been demonstrated that integrated viral genome is stable and is fully retained. However, study of chromosomally integrated viral genome in individuals carrying inherited HHV-6 (iciHHV-6) showed unexpected number of viral DR copies. Hence, we created an in vitro infection model and studied retention of full or partial viral genome over a period of time. We observed an exceptional event where cells retained viral direct repeats (DRs) alone in the absence of the full viral genome. Finally, we found evidence for non-telomeric integration of HHV-6A DR in both cultured cells and in an iciHHV-6 individual. Our results shed light on several novel features of HHV-6A chromosomal integration and provide valuable information for future screening techniques.
Collapse
|
29
|
Luo C, Wang F, Ren X, Ke T, Xu C, Tang B, Qin S, Yao Y, Chen Q, Wang QK. Identification of a molecular signaling gene-gene regulatory network between GWAS susceptibility genes ADTRP and MIA3/TANGO1 for coronary artery disease. Biochim Biophys Acta Mol Basis Dis 2017; 1863:1640-1653. [PMID: 28341552 DOI: 10.1016/j.bbadis.2017.03.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 02/24/2017] [Accepted: 03/19/2017] [Indexed: 11/15/2022]
Abstract
Coronary artery disease (CAD) is the leading cause of death worldwide. GWAS have identified >50 genomic loci for CAD, including ADTRP and MIA3/TANGO1. However, it is important to determine whether the GWAS genes form a molecular network. In this study, we have uncovered a novel molecular network between ADTRP and MIA3/TANGO1 for the pathogenesis of CAD. We showed that knockdown of ADTRP expression markedly down-regulated expression of MIA3/TANGO1. Mechanistically, ADTRP positively regulates expression of PIK3R3 encoding the regulatory subunit 3 of PI3K, which leads to activation of AKT, resulting in up-regulation of MIA3/TANGO1. Both ADTRP and MIA3/TANGO1 are involved in endothelial cell (EC) functions relevant to atherosclerosis. Knockdown of ADTRP expression by siRNA promoted oxidized-LDL-mediated monocyte adhesion to ECs and transendothelial migration of monocytes, inhibited EC proliferation and migration, and increased apoptosis, which was reversed by expression of constitutively active AKT1 and MIA3/TANGO1 overexpression, while the over-expression of ADTRP in ECs blunted these processes. Knockdown of MIA3/TANGO1 expression also promoted monocyte adhesion to ECs and transendothelial migration of monocytes, and vice versa for overexpression of MIA3/TANGO1. We found that ADTRP negatively regulates the levels of collagen VII and ApoB in HepG2 and endothelial cells, which are downstream regulatory targets of MIA3/TANGOI. In conclusion, we have uncovered a novel molecular signaling pathway for the pathogenesis of CAD, which involves a novel gene-gene regulatory network. We show that ADTRP positively regulates PIK3R3 expression, which leads to activation of AKT and up-regulation of MIA3/TANGO1, thereby regulating endothelial cell functions directly relevant to atherosclerosis.
Collapse
Affiliation(s)
- Chunyan Luo
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Fan Wang
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Department of Genetics and Genome Science, Case Western Reserve University, Cleveland, OH 44195, USA
| | - Xiang Ren
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Tie Ke
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Chengqi Xu
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Bo Tang
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Subo Qin
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Yufeng Yao
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China
| | - Qiuyun Chen
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Department of Genetics and Genome Science, Case Western Reserve University, Cleveland, OH 44195, USA.
| | - Qing Kenneth Wang
- The Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan 430074, Hubei Province, PR China; Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Department of Cardiovascular Medicine, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Molecular Medicine, Department of Genetics and Genome Science, Case Western Reserve University, Cleveland, OH 44195, USA.
| |
Collapse
|
30
|
Xu W, Zeng S, Li M, Fan Z, Zhou B. Aggf1 attenuates hepatic inflammation and activation of hepatic stellate cells by repressing Ccl2 transcription. J Biomed Res 2017; 31:428-436. [PMID: 28958996 PMCID: PMC5706435 DOI: 10.7555/jbr.30.20160046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Liver injury represents a continuum of pathophysiological processes involving a complex interplay between hepatocytes, macrophages, and hepatic stellate cells. The mechanism whereby these intercellular interactions contribute to liver injury and fibrosis is not completely understood. We report here that angiogenic factor with G patch and FHA domains 1 (Aggf1) was downregulated in the livers of cirrhotic patients compared to healthy controls and in primary hepatocytes in response to carbon tetrachloride (CCl4) stimulation. Overexpression of Aggf1 attenuated macrophage chemotaxis. Aggf1 interacted with NF-κB to block its binding to theCcl2 gene promoter and repressed Ccl2 transcription in hepatocytes. Macrophages cultured in the conditioned media collected from Aggf1-overexpressing hepatocytes antagonized HSC activation. Taken together, our data illustrate a novel role for Aggf1 in regulating hepatic inflammation and provide insights on the development of interventional strategies against cirrhosis.
Collapse
Affiliation(s)
- Wenping Xu
- Department of Nursing, Jiangsu Jiankang Vocational University, Nanjing, Jiangsu 210029, China
| | - Sheng Zeng
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Min Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Zhiwen Fan
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Bisheng Zhou
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| |
Collapse
|
31
|
Shadrina AS, Smetanina MA, Sevost'ianova KS, Sokolova EA, Shevela AI, Selivestrov EI, Demekhova MY, Shonov OA, Ilyukhin EA, Voronina EN, Zolotukhin IA, Kirienko AI, Filipenko ML. Polymorphic Variants rs13155212 (T/C) and rs7704267 (G/C) in the AGGF1 Gene and Risk of Varicose Veins of the Lower Extremities in the Population of Ethnic Russians. Bull Exp Biol Med 2016; 161:698-702. [PMID: 27704351 DOI: 10.1007/s10517-016-3488-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Indexed: 10/20/2022]
Abstract
We analyzed associations between single nucleotide polymorphisms (SNP) rs13155212 and rs7704267 in the AGGF1 gene (angiogenic factor with G patch and FHA domains 1) and the risk of risk of varicose veins of the legs in ethnic Russians. Frequencies of alleles, genotypes, and haplotypes were estimated in the sample of patients with this disease (474 patients) and in the control group of participants (478 volunteers) without a history of chronic venous disease. None of the studied polymorphisms was associated with the risk of this pathology. The whole AGGF1 gene sequence lies in a single block of high linkage disequilibrium, and both studied polymorphic variants are representative of all other SNP within this region. From these results, a conclusion was made that AGGF1 gene polymorphism does not affect the risk of varicose veins of the legs in ethnic Russians, or its contribution is low and can be revealed only after analysis of larger cohorts.
Collapse
Affiliation(s)
- A S Shadrina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia. .,Novosibirsk National Research State University, Novosibirsk, Russia.
| | - M A Smetanina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - K S Sevost'ianova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - E A Sokolova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk National Research State University, Novosibirsk, Russia
| | - A I Shevela
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - E I Selivestrov
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | | | | | | | - E N Voronina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk National Research State University, Novosibirsk, Russia
| | - I A Zolotukhin
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A I Kirienko
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - M L Filipenko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia.,Novosibirsk National Research State University, Novosibirsk, Russia
| |
Collapse
|
32
|
Up-regulation of miR-95-3p in hepatocellular carcinoma promotes tumorigenesis by targeting p21 expression. Sci Rep 2016; 6:34034. [PMID: 27698442 PMCID: PMC5048429 DOI: 10.1038/srep34034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 09/05/2016] [Indexed: 01/16/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common malignant cancers. To elucidate new regulatory mechanisms for heptocarcinogenesis, we investigated the regulation of p21, a cyclin-dependent kinase (CDK) inhibitor encoded by CDKN1A, in HCC. The expression level of p21 is decreased with the progression of HCC. Luciferase assays with a luciferase-p21-3' UTR reporter and its serial deletions identified a 15-bp repressor element at the 3'-UTR of CDKN1A, which contains a binding site for miR-95-3p. Mutation of the binding site eliminated the regulatory effect of miR-95-3p on p21 expression. Posttranscriptional regulation of p21 expression by miR-95-3p is mainly on the protein level (suppression of translation). Overexpression of miR-95-3p in two different HCC cell lines, HepG2 and SMMC7721, significantly promoted cell proliferation, cell cycle progression and cell migration, whereas a miR-95-3p specific inhibitor decreased cell proliferation, cell cycle progression and cell migration. The effects of miR-95-3p on cellular functions were rescued by overexpression of p21. Overexpression of miR-95-3p promoted cell proliferation and tumor growth in HCC xenograft mouse models. Expression of miR-95-3p was significantly higher in HCC samples than in adjacent non-cancerous samples. These results demonstrate that miR-95-3p is a potential new marker for HCC and regulates hepatocarcinogenesis by directly targeting CDKN1A/p21 expression.
Collapse
|
33
|
Lu Q, Yao Y, Hu Z, Hu C, Song Q, Ye J, Xu C, Wang AZ, Chen Q, Wang QK. Angiogenic Factor AGGF1 Activates Autophagy with an Essential Role in Therapeutic Angiogenesis for Heart Disease. PLoS Biol 2016; 14:e1002529. [PMID: 27513923 PMCID: PMC4981375 DOI: 10.1371/journal.pbio.1002529] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 07/12/2016] [Indexed: 01/13/2023] Open
Abstract
AGGF1 is an angiogenic factor with therapeutic potential to treat coronary artery disease (CAD) and myocardial infarction (MI). However, the underlying mechanism for AGGF1-mediated therapeutic angiogenesis is unknown. Here, we show for the first time that AGGF1 activates autophagy, a housekeeping catabolic cellular process, in endothelial cells (ECs), HL1, H9C2, and vascular smooth muscle cells. Studies with Atg5 small interfering RNA (siRNA) and the autophagy inhibitors bafilomycin A1 (Baf) and chloroquine demonstrate that autophagy is required for AGGF1-mediated EC proliferation, migration, capillary tube formation, and aortic ring-based angiogenesis. Aggf1+/- knockout (KO) mice show reduced autophagy, which was associated with inhibition of angiogenesis, larger infarct areas, and contractile dysfunction after MI. Protein therapy with AGGF1 leads to robust recovery of myocardial function and contraction with increased survival, increased ejection fraction, reduction of infarct areas, and inhibition of cardiac apoptosis and fibrosis by promoting therapeutic angiogenesis in mice with MI. Inhibition of autophagy in mice by bafilomycin A1 or in Becn1+/- and Atg5 KO mice eliminates AGGF1-mediated angiogenesis and therapeutic actions, indicating that autophagy acts upstream of and is essential for angiogenesis. Mechanistically, AGGF1 initiates autophagy by activating JNK, which leads to activation of Vps34 lipid kinase and the assembly of Becn1-Vps34-Atg14 complex involved in the initiation of autophagy. Our data demonstrate that (1) autophagy is essential for effective therapeutic angiogenesis to treat CAD and MI; (2) AGGF1 is critical to induction of autophagy; and (3) AGGF1 is a novel agent for treatment of CAD and MI. Our data suggest that maintaining or increasing autophagy is a highly innovative strategy to robustly boost the efficacy of therapeutic angiogenesis. Treatment with the angiogenic factor AGGF1 dramatically improves survival and cardiac function in mouse models for coronary artery disease and myocardial infarction by activating autophagy and angiogenesis. Coronary artery disease is the number one killer disease worldwide. Recently, therapeutic angiogenesis has been proposed as an attractive new strategy for treating this and other ischemic diseases. This study establishes the angiogenic factor AGGF1 as a novel target and agent that can successfully treat coronary artery disease and acute myocardial infarction and dramatically improve survival and cardiac function in mouse models. We present the unexpected finding that AGGF1 has these effects via activating autophagy, and that autophagy is essential for therapeutic angiogenesis in animals. We find that AGGF1 is a novel master regulator of autophagy not only in endothelial cells but also in all other cell types examined in the study. Mechanistically, AGGF1 activates autophagy by activating JNK, which leads to activation of the Vps34 lipid kinase and assembly of the Becn1-Vps34-Atg14 complex involved in the initiation of autophagy. The study thus provides a link connecting the therapeutic angiogenesis and autophagy pathways in heart disease.
Collapse
MESH Headings
- Angiogenic Proteins/genetics
- Angiogenic Proteins/metabolism
- Angiogenic Proteins/pharmacology
- Animals
- Autophagy/drug effects
- Autophagy/genetics
- Autophagy/physiology
- Autophagy-Related Protein 5/genetics
- Autophagy-Related Protein 5/metabolism
- Beclin-1/genetics
- Beclin-1/metabolism
- Blotting, Western
- Cell Line
- Cells, Cultured
- Enzyme Inhibitors/pharmacology
- Heart Diseases/drug therapy
- Heart Diseases/genetics
- Heart Diseases/metabolism
- Human Umbilical Vein Endothelial Cells/drug effects
- Human Umbilical Vein Endothelial Cells/metabolism
- Human Umbilical Vein Endothelial Cells/physiology
- Humans
- Macrolides/pharmacology
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/cytology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Neovascularization, Pathologic/drug therapy
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/metabolism
- Neovascularization, Physiologic/drug effects
- Recombinant Proteins/metabolism
- Recombinant Proteins/pharmacology
Collapse
Affiliation(s)
- Qiulun Lu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Yufeng Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Zhenkun Hu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Changqing Hu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Qixue Song
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Jian Ye
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
| | - Annabel Z. Wang
- Duke University, Durham, North Carolina, United States of America
| | - Qiuyun Chen
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Cleveland Clinic, Cleveland, Ohio, United States of America
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Qing Kenneth Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, P. R. China
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Cleveland Clinic, Cleveland, Ohio, United States of America
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, Ohio, United States of America
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, United States of America
- * E-mail: ;
| |
Collapse
|
34
|
Zhou B, Zeng S, Li L, Fan Z, Tian W, Li M, Xu H, Wu X, Fang M, Xu Y. Angiogenic factor with G patch and FHA domains 1 (Aggf1) regulates liver fibrosis by modulating TGF-β signaling. Biochim Biophys Acta Mol Basis Dis 2016; 1862:1203-13. [DOI: 10.1016/j.bbadis.2016.02.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/26/2016] [Accepted: 02/01/2016] [Indexed: 11/26/2022]
|
35
|
Liu Y, Tian X, Li Y, Liu D, Liu M, Zhang X, Zhang Q, Yan C, Han Y. Up-Regulation of CREG Expression by the Transcription Factor GATA1 Inhibits High Glucose- and High Palmitate-Induced Apoptosis in Human Umbilical Vein Endothelial Cells. PLoS One 2016; 11:e0154861. [PMID: 27139506 PMCID: PMC4854376 DOI: 10.1371/journal.pone.0154861] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/20/2016] [Indexed: 01/14/2023] Open
Abstract
Background Endothelial cell (EC) apoptosis plays a vital role in the pathogenesis of atherosclerosis in patients with diabetes mellitus (DM), but the underlying mechanism remains unclear. Cellular repressor of E1A-stimulated genes (CREG) is a novel gene reported to be involved in maintaining the homeostasis of ECs. Therefore, in the present study, we investigated the role of CREG in high glucose/high palmitate-induced EC apoptosis and to decipher the upstream regulatory mechanism underlying the transcriptional regulation of CREG. Methods The expression of CREG and the rate of apoptosis were assessed in lower-limb atherosclerotic lesions from patients with type 2 DM (T2DM). Primary human umbilical vein endothelial cells (HUVECs) were isolated and cultured in a high glucose/high palmitate medium (25 mmol/L D-glucose, 0.4 mmol/L palmitate), and the over-expression and knock-down of CREG were performed in HUVECs to determine the role of CREG in EC apoptosis. The upstream regulatory mechanism of CREG was identified using a promoter-binding transcription-factor profiling array, chromatin immunoprecipitation (ChIP) assay and a mutation analysis. Results Compared with normal arteries from non-diabetic patients, reduced CREG expression and increased apoptosis were found in the endothelium of atherosclerotic lesions from patients with T2DM. In vitro treatment of HUVECs with a high glucose/high palmitate medium also resulted in decreased CREG expression and increased apoptosis. Moreover, high glucose/high palmitate induced-HUVEC apoptosis was increased by the knock-down of CREG and rescued by the over-expression of CREG. We also demonstrated that GATA1 was able to bind to the promoter of the human CREG gene. A deletion mutation at -297/-292 in the CREG promoter disrupted GATA1 binding and reduced the activation of CREG transcription by approximately 83.3%. Finally, the overexpression of GATA1 abrogated the high glucose/high palmitate-induced apoptosis in HUVECs. Conclusions The over-expression of CREG inhibits high glucose/high palmitate-induced apoptosis in HUVECs. CREG is transcriptionally upregulated by GATA1. Thus, CREG might be a potential therapeutic target for intervention of vascular complications related to diabetes.
Collapse
Affiliation(s)
- Yanxia Liu
- Graduate School of Third Military Medical University, Chongqing, China
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Xiaoxiang Tian
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Yang Li
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Dan Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Meili Liu
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Xiaolin Zhang
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Quanyu Zhang
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Chenghui Yan
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
| | - Yaling Han
- Department of Cardiology and Cardiovascular Research Institute, General Hospital of Shenyang Military Region, Shenyang, China
- * E-mail:
| |
Collapse
|
36
|
Zhao Y, Huang Y, Li W, Wang Z, Zhan S, Zhou M, Yao Y, Zeng Z, Hou Y, Chen Q, Tu X, Wang QK, Huang Z. Post-transcriptional regulation of cardiac sodium channel gene SCN5A expression and function by miR-192-5p. Biochim Biophys Acta Mol Basis Dis 2015. [PMID: 26209011 DOI: 10.1016/j.bbadis.2015.07.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The SCN5A gene encodes cardiac sodium channel Nav1.5 and causes lethal ventricular arrhythmias/sudden death and atrial fibrillation (AF) when mutated. MicroRNAs (miRNAs) are important post-transcriptional regulators of gene expression, and involved in the pathogenesis of many diseases. However, little is known about the regulation of SCN5A by miRNAs. Here we reveal a novel post-transcriptional regulatory mechanism for expression and function of SCN5A/Nav1.5 via miR-192-5p. Bioinformatic analysis revealed that the 3'-UTR of human and rhesus SCN5A, but not elephant, pig, rabbit, mouse, and rat SCN5A, contained a target binding site for miR-192-5p and dual luciferase reporter assays showed that the site was critical for down-regulation of human SCN5A. With Western blot assays and electrophysiological studies, we demonstrated that miR-192-5p significantly reduced expression of SCN5A and Nav1.5 as well as peak sodium current density INa generated by Nav1.5. Notably, in situ hybridization, immunohistochemistry and real-time qPCR analyses showed that miR-192-5p was up-regulated in tissue samples from AF patients, which was associated with down-regulation of SCN5A/Nav1.5. These results demonstrate an important post-transcriptional role of miR-192-5p in post-transcriptional regulation of Nav1.5, reveal a novel role of miR-192-5p in cardiac physiology and disease, and provide a new target for novel miRNA-based antiarrhythmic therapy for diseases with reduced INa.
Collapse
Affiliation(s)
- Yuanyuan Zhao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China
| | - Yuan Huang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China
| | - Weihua Li
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, PR China
| | - Zhijie Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China
| | - Shaopeng Zhan
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, PR China
| | - Mengchen Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China
| | - Yufeng Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China
| | - Zhipeng Zeng
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, PR China
| | - Yuxi Hou
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, PR China
| | - Qiuyun Chen
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Molecular Medicine, CCLCM, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Xin Tu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China
| | - Qing K Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Cardio-X Center, College of Life Science and Technology and Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan, PR China; Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Molecular Medicine, CCLCM, Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA.
| | - Zhengrong Huang
- Department of Cardiology, The First Affiliated Hospital of Xiamen University, Xiamen, PR China.
| |
Collapse
|
37
|
Overexpression of AGGF1 is correlated with angiogenesis and poor prognosis of hepatocellular carcinoma. Med Oncol 2015; 32:131. [PMID: 25796501 DOI: 10.1007/s12032-015-0574-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 03/13/2015] [Indexed: 10/23/2022]
Abstract
Angiogenic factor with G-patch and FHA domains 1 (AGGF1) is a factor implicating in vascular differentiation and angiogenesis. Several lines of evidence indicate that aberrant expression of AGGF1 is associated with tumor initiation and progression. The aim of this study was to investigate the expression and prognostic value of AGGF1 in hepatocellular carcinoma (HCC), as well as its relationship with clinicopathological factors and tumor angiogenesis. Immunohistochemistry was performed to evaluate the expression of AGGF1 in HCC and paracarcinomatous tissues collected from 70 patients. Vascular endothelial growth factor (VEGF) and CD34 expression levels were examined in the 70 HCC tissues. Prognostic significance of tumoral AGGF1 expression was determined. Notably, AGGF1 expression was significantly higher in HCC than in surrounding non-tumor tissues (65.7 vs. 25.7 %; P < 0.001). AGGF1 expression was significantly correlated with tumoral VEGF expression and CD34-positive microvessel density. Moreover, AGGF1 expression was significantly associated with tumor size, tumor capsule, vascular invasion, Edmondson grade, alpha-fetoprotein level, and TNM stage. Kaplan-Meier survival analysis showed that high AGGF1 was correlated with reduced overall survival (OS) rate (P = 0.001) and disease-free survival (DFS) rate (P < 0.001). Multivariate analysis identified AGGF1 as an independent poor prognostic factor of OS and DFS in HCC patients (P = 0.043 and P = 0.010, respectively). Taken together, increased AGGF1 expression is associated with tumor angiogenesis and serves as an independent unfavorable prognostic factor for OS and DFS in HCC. AGGF1 may represent a potential therapeutic target for HCC.
Collapse
|
38
|
Åström M, Hahn-Strömberg V, Zetterberg E, Vedin I, Merup M, Palmblad J. X-linked thrombocytopenia with thalassemia displays bone marrow reticulin fibrosis and enhanced angiogenesis: comparisons with primary myelofibrosis. Am J Hematol 2015; 90:E44-8. [PMID: 25421114 DOI: 10.1002/ajh.23907] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 11/20/2014] [Indexed: 01/19/2023]
Abstract
X-linked thrombocytopenia with thalassemia (XLTT) is caused by the mutation 216R > Q in exon 4 of the GATA1 gene. Male hemizygous patients display macrothrombocytopenia, splenomegaly, and a β-thalassemia trait. We describe two XLTT families where three males were initially misdiagnosed as having primary myelofibrosis (PMF) and all five investigated males showed mild-moderate bone marrow (BM) reticulin fibrosis. Comparative investigations were performed on blood samples and BM biopsies from males with XLTT, PMF patients and healthy controls. Like PMF, XLTT presented with high BM microvessel density, low GATA1 protein levels in megakaryocytes, and elevated blood CD34+ cell counts. But unlike PMF, the BM microvessel pericyte coverage was low in XLTT, and no collagen fibrosis was found. Further, as evaluated by immunohistochemistry, expressions of the growth factors VEGF, AGGF1, and CTGF were low in XLTT megakaryocytes and microvessels but high in PMF. Thus, although the reticulin fibrosis in XLTT might simulate PMF, opposing stromal and megakaryocyte features may facilitate differential diagnosis. Additional comparisons between these disorders may increase the understanding of mechanisms behind BM fibrosis in relation to pathological megakaryopoiesis.
Collapse
Affiliation(s)
- Maria Åström
- Department of Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden; Department of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | | | | | | | | | | |
Collapse
|
39
|
Abstract
Linear discriminant analysis has been widely used to characterize or separate multiple classes via linear combinations of features. However, the high dimensionality of features from modern biological experiments defies traditional discriminant analysis techniques. Possible interfeature correlations present additional challenges and are often underused in modelling. In this paper, by incorporating possible interfeature correlations, we propose a covariance-enhanced discriminant analysis method that simultaneously and consistently selects informative features and identifies the corresponding discriminable classes. Under mild regularity conditions, we show that the method can achieve consistent parameter estimation and model selection, and can attain an asymptotically optimal misclassification rate. Extensive simulations have verified the utility of the method, which we apply to a renal transplantation trial.
Collapse
Affiliation(s)
- Peirong Xu
- Department of Mathematics, Southeast University, Nanjing 211189, China
| | - J I Zhu
- Department of Statistics, University of Michigan, Ann Arbor, Michigan 48109, U.S.A
| | - Lixing Zhu
- Department of Mathematics, Hong Kong Baptist University, Hong Kong, China
| | - Y I Li
- Department of Biostatistics, University of Michigan, Ann Arbor, Michigan 48109, U.S.A
| |
Collapse
|
40
|
AGGF1 protects from myocardial ischemia/reperfusion injury by regulating myocardial apoptosis and angiogenesis. Apoptosis 2014; 19:1254-68. [DOI: 10.1007/s10495-014-1001-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
41
|
Su Z, Si W, Li L, Zhou B, Li X, Xu Y, Xu C, Jia H, Wang QK. MiR-144 regulates hematopoiesis and vascular development by targeting meis1 during zebrafish development. Int J Biochem Cell Biol 2014; 49:53-63. [PMID: 24448023 DOI: 10.1016/j.biocel.2014.01.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 12/24/2013] [Accepted: 01/07/2014] [Indexed: 12/12/2022]
Abstract
Hematopoiesis is a dynamic process by which peripheral blood lineages are developed. It is a process tightly regulated by many intrinsic and extrinsic factors, including transcriptional factors and signaling molecules. However, the epigenetic regulation of hematopoiesis, for example, regulation via microRNAs (miRNAs), remains incompletely understood. Here we show that miR-144 regulates hematopoiesis and vascular development in zebrafish. Overexpression of miR-144 inhibited primitive hematopoiesis as demonstrated by a reduced number of circulating blood cells, reduced o-dianisidine staining of hemoglobin, and reduced expression of hbαe1, hbβe1, gata1 and pu.1. Overexpression of miR-144 also inhibited definitive hematopoiesis as shown by reduced expression of runx1 and c-myb. Mechanistically, miR-144 regulates hematopoiesis by repressing expression of meis1 involved in hematopoiesis. Both real-time RT-PCR and Western blot analyses showed that overexpression of miR-144 repressed expression of meis1. Bioinformatic analysis predicts a target binding sequence for miR-144 at the 3'-UTR of meis1. Deletion of the miR-144 target sequence eliminated the repression of meis1 expression mediated by miR-144. The miR-144-mediated abnormal phenotypes were partially rescued by co-injection of meis1 mRNA and could be almost completely rescued by injection of both meis1 and gata1 mRNA. Finally, because meis1 is involved in vascular development, we tested the effect of miR-144 on vascular development. Overexpression of miR-144 resulted in abnormal vascular development of intersegmental vessels in transgenic zebrafish with Flk1p-EGFP, and the defect was rescued by co-injection of meis1 mRNA. These findings establish miR-144 as a novel miRNA that regulates hematopoiesis and vascular development by repressing expression of meis1.
Collapse
Affiliation(s)
- Zhenhong Su
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China; Key Laboratory of Kidney Disease Pathogenesis and Intervention of Hubei Province, Key Discipline of Pharmacy of Hubei Department of Education, Medical College, Hubei Polytechnic University, Huangshi, Hubei, PR China
| | - Wenxia Si
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Lei Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Bisheng Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Xiuchun Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Yan Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Haibo Jia
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | - Qing K Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China; Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
| |
Collapse
|
42
|
Transcriptional activation of the Prox1 gene by HIF-1α and HIF-2α in response to hypoxia. FEBS Lett 2013; 587:724-31. [PMID: 23395615 DOI: 10.1016/j.febslet.2013.01.053] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/15/2013] [Accepted: 01/24/2013] [Indexed: 11/23/2022]
Abstract
Prox1 encodes a homeobox transcription factor critical to organ development, but its regulation is poorly understood. Here, we show that Prox1 expression is induced by hypoxia, and controlled by a hypoxia-response element (HRE) at the Prox1 promoter/regulatory region and HIF-1α/HIF-2α. EMSA and ChIP assays demonstrated the direct interaction of the HRE with HIF-1α or HIF-2α. Overexpression of HIF-1α or HIF-2α increased activation of the Prox1 promoter, whereas knockdown of HIF-1α or HIF-2α inhibited the activation. These data reveal a novel molecular mechanism for regulation of Prox1 expression in response to hypoxia and provide new insights into Prox1-controlled processes such as lymphangiogenesis.
Collapse
|
43
|
Zhou B, Ma R, Si W, Li S, Xu Y, Tu X, Wang Q. MicroRNA-503 targets FGF2 and VEGFA and inhibits tumor angiogenesis and growth. Cancer Lett 2013; 333:159-69. [PMID: 23352645 DOI: 10.1016/j.canlet.2013.01.028] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 01/12/2013] [Accepted: 01/15/2013] [Indexed: 12/26/2022]
Abstract
FGF2 and VEGFA are the two most potent angiogenic factors. Here we report that miR-503 can simultaneously down-regulate FGF2 and VEGFA. The expression of miR-503 is repressed in HCC cells and primary tumors due to a potential epigenetic mechanism. Overexpression of miR-503 reduced tumor angiogenesis in vitro and in vivo. We also found that miR-503 expression was down-regulated by hypoxia through HIF1α. These results identify a miRNA that targets both FGF2 and VEGFA in cancers, demonstrate the anti-angiogenesis role of miR-503 in tumorigenesis, and provide a novel mechanism for hypoxia-induced FGF2 and VEGFA through HIF1α-mediated inhibition of miR-503.
Collapse
Affiliation(s)
- Bisheng Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Department of Genetics and Developmental Biology, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, PR China
| | | | | | | | | | | | | |
Collapse
|
44
|
Chen D, Li L, Tu X, Yin Z, Wang Q. Functional characterization of Klippel–Trenaunay syndrome gene AGGF1 identifies a novel angiogenic signaling pathway for specification of vein differentiation and angiogenesis during embryogenesis. Hum Mol Genet 2012. [DOI: 10.1093/hmg/dds501] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
|
45
|
Lu Q, Yao Y, Yao Y, Liu S, Huang Y, Lu S, Bai Y, Zhou B, Xu Y, Li L, Wang N, Wang L, Zhang J, Cheng X, Qin G, Ma W, Xu C, Tu X, Wang Q. Angiogenic factor AGGF1 promotes therapeutic angiogenesis in a mouse limb ischemia model. PLoS One 2012; 7:e46998. [PMID: 23110058 PMCID: PMC3479102 DOI: 10.1371/journal.pone.0046998] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 09/11/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Peripheral arterial disease (PAD) is a common disease accounting for about 12% of the adult population, and causes significant morbidity and mortality. Therapeutic angiogenesis using angiogenic factors has been considered to be a potential treatment option for PAD patients. In this study, we assessed the potential of a new angiogenic factor AGGF1 for therapeutic angiogenesis in a critical limb ischemia model in mice for PAD. METHODS AND RESULTS We generated a unilateral hindlimb ischemia model in mice by ligation of the right common iliac artery and femoral artery. Ischemic mice with intrasmuscular administration of DNA for an expression plasmid for human AGGF1 (AGGF1 group) resulted in increased expression of both AGGF1 mRNA and protein after the administration compared with control mice with injection of the empty vector (control group). Color PW Doppler echocardiography showed that the blood flow in ischemic hindlimbs was significantly increased in the AGGF1 group compared to control mice at time points of 7, 14, and 28 days after DNA administration (n = 9/group, P = 0.049, 0.001, and 0.001, respectively). Increased blood flow in the AGGF1 group was correlated to increased density of CD31-positive vessels and decreased necrosis in muscle tissues injected with AGGF1 DNA compared with the control tissue injected with the empty vector. Ambulatory impairment was significantly reduced in the AGGF1 group compared to the control group (P = 0.004). The effect of AGGF1 was dose-dependent. At day 28 after gene transfer, AGGF1 was significantly better in increasing blood flow than FGF-2 (P = 0.034), although no difference was found for tissue necrosis and ambulatory impairment. CONCLUSIONS These data establish AGGF1 as a candidate therapeutic agent for therapeutic angiogenesis to treat PAD.
Collapse
Affiliation(s)
- Qiulun Lu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yihong Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yufeng Yao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Shizhi Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yuan Huang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Shan Lu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Ying Bai
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Bisheng Zhou
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Yan Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Lei Li
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Nan Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Li Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Jie Zhang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Xiang Cheng
- Institute of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Gangjian Qin
- Feinberg Cardiovascular Research Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Wei Ma
- The First Hospital of Wuhan City, Wuhan, People’s Republic of China
| | - Chengqi Xu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Xin Tu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
| | - Qing Wang
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Cardio-X Institute, Huazhong University of Science and Technology, Wuhan, People’s Republic of China
- Center for Cardiovascular Genetics, Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, United States of America
| |
Collapse
|
46
|
Fan C, Gaivin RJ, Marth TA, Willard B, Levine MA, Lietman SA. Cloning and characterization of the human SH3BP2 promoter. Biochem Biophys Res Commun 2012; 425:25-32. [PMID: 22820184 PMCID: PMC3423545 DOI: 10.1016/j.bbrc.2012.07.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 07/11/2012] [Indexed: 11/17/2022]
Abstract
SH3BP2 activating mutations lead to an unique clinical condition in which patients develop symmetrical bone resorptive lesions of the jaw, a condition termed cherubism. Due to this specific temporal sequence and location of bone resorption, we investigated the transcriptional regulation of SH3BP2 expression. Analyses of 5'- and 3'-serial promoter deletions defined the core promoter/regulatory elements, including two repressor sites (from -1,200 to -1,000 and from +86 to +115, respectively) and two activator sites (a PARP1 binding site from -44 to -21 and a second activator site from +57 to +86). We identified that PARP1 binds to DNA from -44 to -21 by Streptavidin-biotin purification and confirmed this binding by electrophoretic mobility shift assay (EMSA). Mutagenesis of the PARP1 binding site on the SH3BP2 promoter showed that this binding site is essential for SH3BP2 expression. EMSA and chromatin immunoprecipitation (ChIP) assays confirmed that PARP1 was able to bind to the SH3BP2 promoter in vitro and in vivo. Indeed, knockout of Parp1 in mice BMMs reduced expression of SH3BP2. These results demonstrate that PARP1 regulates expression of SH3BP2.
Collapse
Affiliation(s)
- Chun Fan
- Department of Biomedical Engineering, The Cleveland Clinic, Cleveland, OH, USA
| | - Robert J Gaivin
- Department of Biomedical Engineering, The Cleveland Clinic, Cleveland, OH, USA
| | - Thomas A Marth
- Department of Biomedical Engineering, The Cleveland Clinic, Cleveland, OH, USA
| | - Belinda Willard
- Department of Proteomics Laboratory, The Cleveland Clinic, Cleveland, OH, USA
| | - Michael A Levine
- Division of Endocrinology, The Children’s Hospital of Philadelphia and University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | - Steven A Lietman
- Department of Biomedical Engineering, The Cleveland Clinic, Cleveland, OH, USA
- Department of Orthopaedic Surgery, The Cleveland Clinic, Cleveland, OH, USA
| |
Collapse
|
47
|
Thilo F, Vorderwülbecke BJ, Marki A, Krueger K, Liu Y, Baumunk D, Zakrzewicz A, Tepel M. Pulsatile Atheroprone Shear Stress Affects the Expression of Transient Receptor Potential Channels in Human Endothelial Cells. Hypertension 2012; 59:1232-40. [DOI: 10.1161/hypertensionaha.111.183608] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Florian Thilo
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Bernd J. Vorderwülbecke
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Alex Marki
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Katharina Krueger
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Ying Liu
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Daniel Baumunk
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Andreas Zakrzewicz
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| | - Martin Tepel
- From the Department of Nephrology (F.T., K.K.) and Shear Stress and Vascular Biology Research Group, Institute of Physiology (B.J.V., A.M., A.Z.), Charité Campus Benjamin Franklin, Berlin, Germany; Institute of Molecular Medicine, Cardiovascular and Renal Research (Y.L., M.T.), Institute of Clinical Research, Odense University Hospital and University of Southern Denmark, Odense, Denmark; Department of Urology (Y.L.), Tenth People's Hospital, Tongji University, Shanghai, China; Department of Urology
| |
Collapse
|
48
|
Mankertz A. Molecular interactions of porcine circoviruses type 1 and type 2 with its host. Virus Res 2012; 164:54-60. [DOI: 10.1016/j.virusres.2011.11.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 11/01/2011] [Accepted: 11/02/2011] [Indexed: 01/19/2023]
|
49
|
Kang K, Jung H, Nam S, Lim JS. NDRG2 Promotes GATA-1 Expression through Regulation of the JAK2/STAT Pathway in PMA-stimulated U937 Cells. Immune Netw 2011; 11:348-57. [PMID: 22346774 PMCID: PMC3275703 DOI: 10.4110/in.2011.11.6.348] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2011] [Revised: 10/18/2011] [Accepted: 10/29/2011] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND N-myc downstream-regulated gene 2 (NDRG2), a member of a newly described family of differentiation-related genes, has been characterized as a regulator of dendritic cells. However, the role of NDRG2 on the expression and activation of transcription factors in blood cells remains poorly understood. In this study, we investigated the effects of NDRG2 overexpression on GATA-1 expression in PMA-stimulated U937 cells. METHODS We generated NDRG2-overexpressing U937 cell line (U937-NDRG2) and treated the cells with PMA to investigate the role of NDRG2 on GATA-1 expression. RESULTS NDRG2 overexpression in U937 cells significantly induced GATA-1 expression in response to PMA stimulation. Interestingly, JAK2/STAT and BMP-4/Smad pathways associated with the induction of GATA-1 were activated in PMA-stimulated U937-NDRG2 cells. We found that the inhibition of JAK2 activation, but not of BMP-4/Smad signaling, can elicit a decrease of PMA-induced GATA-1 expression in U937-NDRG2 cells. CONCLUSION The results reveal that NDRG2 promotes the expression of GATA-1 through activation of the JAK2/STAT pathway, but not through the regulation of the BMP-4/Smad pathway in U937 cells. Our findings further suggest that NDRG2 may play a role as a regulator of erythrocyte and megakaryocyte differentiation during hematopoiesis.
Collapse
Affiliation(s)
- Kyeongah Kang
- Department of Biological Science and the Research Center for Women's Disease, Sookmyung Women's University, Seoul 140-742, Korea
| | | | | | | |
Collapse
|
50
|
|