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Wu H, Wu Z, Ye D, Li H, Dai Y, Wang Z, Bao J, Xu Y, He X, Wang X, Dai X. Prognostic value analysis of cholesterol and cholesterol homeostasis related genes in breast cancer by Mendelian randomization and multi-omics machine learning. Front Oncol 2023; 13:1246880. [PMID: 38023262 PMCID: PMC10661325 DOI: 10.3389/fonc.2023.1246880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction The high incidence of breast cancer (BC) prompted us to explore more factors that might affect its occurrence, development, treatment, and also recurrence. Dysregulation of cholesterol metabolism has been widely observed in BC; however, the detailed role of how cholesterol metabolism affects chemo-sensitivity, and immune response, as well as the clinical outcome of BC is unknown. Methods With Mendelian randomization (MR) analysis, the potential causal relationship between genetic variants of cholesterol and BC risk was assessed first. Then we analyzed 73 cholesterol homeostasis-related genes (CHGs) in BC samples and their expression patterns in the TCGA cohort with consensus clustering analysis, aiming to figure out the relationship between cholesterol homeostasis and BC prognosis. Based on the CHG analysis, we established a CAG_score used for predicting therapeutic response and overall survival (OS) of BC patients. Furthermore, a machine learning method was adopted to accurately predict the prognosis of BC patients by comparing multi-omics differences of different risk groups. Results We observed that the alterations in plasma cholesterol appear to be correlative with the venture of BC (MR Egger, OR: 0.54, 95% CI: 0.35-0.84, p<0.006). The expression patterns of CHGs were classified into two distinct groups(C1 and C2). Notably, the C1 group exhibited a favorable prognosis characterized by a suppressed immune response and enhanced cholesterol metabolism in comparison to the C2 group. In addition, high CHG score were accompanied by high performance of tumor angiogenesis genes. Interestingly, the expression of vascular genes (CDH5, CLDN5, TIE1, JAM2, TEK) is lower in patients with high expression of CHGs, which means that these patients have poorer vascular stability. The CAG_score exhibits robust predictive capability for the immune microenvironment characteristics and prognosis of patients(AUC=0.79). It can also optimize the administration of various first-line drugs, including AKT inhibitors VIII Imatinib, Crizotinib, Saracatinib, Erlotinib, Dasatinib, Rapamycin, Roscovitine and Shikonin in BC patients. Finally, we employed machine learning techniques to construct a multi-omics prediction model(Risklight),with an area under the feature curve (AUC) of up to 0.89. Conclusion With the help of CAG_score and Risklight, we reveal the signature of cholesterol homeostasis-related genes for angiogenesis, immune responses, and the therapeutic response in breast cancer, which contributes to precision medicine and improved prognosis of BC.
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Affiliation(s)
- Haodong Wu
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Department of Burns and Skin Repair Surgery, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, Zhejiang, China
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhixuan Wu
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Department of Burns and Skin Repair Surgery, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, Zhejiang, China
| | - Daijiao Ye
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hongfeng Li
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yinwei Dai
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ziqiong Wang
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jingxia Bao
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yiying Xu
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaofei He
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaowu Wang
- Department of Burns and Skin Repair Surgery, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, Zhejiang, China
| | - Xuanxuan Dai
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Wang Q, Zhang Q, Gan Z, Li H, Yang Y, Zhang Y, Zhao X. Screening for reproductive biomarkers in Bactrian camel via iTRAQ analysis of proteomes. Reprod Domest Anim 2020; 55:189-199. [PMID: 31840896 DOI: 10.1111/rda.13607] [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: 07/03/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022]
Abstract
Bactrian camel is an ancient and precious species of livestock; that is, unique resources exist in the desert and have important economic and scientific value. In recent years, the number of Bactrian camels has declined sharply. Due to its long reproductive cycle and seasonal oestrus, the mechanism of oestrus is unknown. To identify candidate biomarkers of reproduction, we performed a comprehensive proteomic analysis of serum from Bactrian camel in oestrus and non-oestrus, using isobaric tags for relative and absolute quantitation (iTRAQ) coupled with tandem mass spectrometry. We identified 359 proteins, of which 32 were differentially expressed: 11 were up-regulated and 21 were down-regulated in samples from camels in oestrus. We validated the differential expression of a subset of these proteins using qPCR and Western blot. Gene ontology annotation identified that the differentially expressed proteins function in cellular processes, metabolic processes and immune system processes. Notably, five of the differentially expressed proteins, PCGF5, histone H1.2, RBP4, FOLR1 and ANTXR2, are involved in reproductive regulatory processes in other animals. KEGG enrichment analysis demonstrated significant enrichment in several cardiac-related pathways, such as 'dilated cardiomyopathy', 'hypertrophic cardiomyopathy', 'cardiac muscle contraction' and 'adrenergic signalling in cardiomyopathy'. Our results suggest that candidate biomarker (PCGF5, histone H1.2, RBP4, FOLR1 and ANTXR2) discovery can aid in understanding reproduction in Bactrian camels. We conclude that the profiling of serum proteomes, followed by the measurement of selected proteins using more targeted methods, offers a promising approach for studying mechanisms of oestrus.
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Affiliation(s)
- Qi Wang
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China
| | - Quanwei Zhang
- College of Life Science and Technology, Gansu Agriculture University, Lanzhou, China
| | - Ze Gan
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China
| | - Haijiang Li
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China
| | - Yang Yang
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China
| | - Yong Zhang
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China.,College of Life Science and Technology, Gansu Agriculture University, Lanzhou, China
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agriculture University, Lanzhou, China.,College of Life Science and Technology, Gansu Agriculture University, Lanzhou, China
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Xiao L, Luo G, Guo X, Jiang C, Zeng H, Zhou F, Li Y, Yu J, Yao P. Macrophage iron retention aggravates atherosclerosis: Evidence for the role of autocrine formation of hepcidin in plaque macrophages. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1865:158531. [PMID: 31666189 DOI: 10.1016/j.bbalip.2019.158531] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 09/10/2019] [Accepted: 09/13/2019] [Indexed: 12/18/2022]
Abstract
Iron accumulation has been frequently found in atherosclerotic lesions, especially in macrophages/foam cells, but the exact mechanisms by which hepcidin induces iron retention in plaque macrophages and its roles in atherogenesis remain unknown. Double immunofluorescence staining showed colocalization of hepcidin-positive macrophages with ox-LDL, TLR4, p-p65 and ferritin light chain (ferritin-L) both in human and murine atherosclerotic lesions. RAW264.7 macrophages incubated with ox-LDL showed elevated expression of TLR4, p-p65, hepcidin, ferritin-L/H, CYP27A1, CD36, PPARγ, liver X receptor α (LXRα), and ATP binding cassette transporter A1/G1 (ABCA1/G1), as well as increased intracellular labile iron pool level and lipid accumulation. Ox-LDL-induced iron retention and lipid accumulation were aggravated by lipopolysaccharide but blocked by TAK-242, an antagonist of TLR4. Moreover, macrophage TLR4/NF-κB pathway activation and foaming triggered by ox-LDL was enhanced by ferric ammonium citrate or exogenous hepcidin but attenuated by hepcidin silencing or the use of iron chelator. Meanwhile, the addition of hepcidin stimulated CD36-mediated Dil-labeled-ox-LDL uptake and inhibited the LXRα-ABCA1/G1 pathway-dependent cholesterol efflux in macrophages, which was significantly reversed by 27-hydroxycholesterol but further exacerbated by cyclosporin A, a selective inhibitor of CYP27A1. Our study provided the evidence that iron trapped in atherosclerosis plaque macrophages contributes to cholesterol disequilibrium-initiated foam cell formation, which is provoked by the unique but largely unknown autocrine formation of hepcidin in plaque macrophages via activating the TLR4/NF-κB pathway when exposed to ox-LDL. Such findings, considering the intricate vicious cycle between macrophage hepcidin autocrine-triggered iron retention and cholesterol disequilibrium, may shed new light on the "iron hypothesis" of atherosclerosis.
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Affiliation(s)
- Lin Xiao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Gang Luo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoping Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chunjie Jiang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hongmei Zeng
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Feng Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yanyan Li
- Shenzhen Center for Chronic Disease Control, 2021 Buxin Road, Shenzhen 518020, China
| | - Jiasheng Yu
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, HuaZhong University of Science and Technology, Wuhan 430030, China
| | - Ping Yao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Chen M, Gilbert N, Liu H. Reduced expression of PD-L1 in autoimmune thyroiditis attenuate trophoblast invasion through ERK/MMP pathway. Reprod Biol Endocrinol 2019; 17:86. [PMID: 31656199 PMCID: PMC6816196 DOI: 10.1186/s12958-019-0536-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 10/16/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Autoimmune thyroiditis (AIT) with euthyroid is associated with miscarriage. But the exact mechanism remains unclear. Studies have shown that the programmed cell death-1 (PD-1)/programmed cell death -ligand 1 (PD-L1) pathway is essential for normal pregnancy. However, the expression of PD-L1 in gestational trophoblasts in mice with autoimmune thyroiditis and the mechanisms leading to miscarriage have not been fully investigated. METHODS Immunofluorescence and Western blot were used to detect the expression of PD-L1, p-ERK, MMP-2 and MMP-9 in embryonic trophoblast cells of pregnant mice with AIT. The expression of PD-L1 in HTR-8/SVneo cells were silenced, and the expression of PD-L1, MMP-2, MMP-9, ERK and p-ERK1/2 was detected by Western blot analyses and immunofluorescence assays. Invasive assays were performed in PD-L1 silenced HTR-8/SVneo cells using a Transwell chamber. RESULTS Compared with normal pregnancy, the expression of PD-L1, ERK, p-ERK, MMP-2 and MMP-9 in embryonic trophoblast cells was significantly lower in pregnant mice with AIT. Compared with the negative control (NC) group (cells transfected with negative control siRNA), phosphorylation of MMP-2, MMP-9 and P-ERK1/2 proteins was significantly reduced in HTR-8/SVneo cells transfected with PD-L1 siRNA, and the number of cells penetrating the membrane was reduced. CONCLUSION AIT inhibits ERK/MMP-2 and MMP-9 pathways through PD-L1 reduction, attenuates embryonic trophoblast invasion and ultimalely induces miscarriage ultimately.
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Affiliation(s)
- Mengya Chen
- grid.452828.1Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116027 Liaoning China
| | - Nduwimana Gilbert
- grid.452828.1Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116027 Liaoning China
| | - Haixia Liu
- grid.452828.1Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116027 Liaoning China
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Increased Soluble CMG2 Serum Protein Concentration is Associated with the Progression of Prostate Carcinoma. Cancers (Basel) 2019; 11:cancers11081059. [PMID: 31357506 PMCID: PMC6721319 DOI: 10.3390/cancers11081059] [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: 06/26/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 11/17/2022] Open
Abstract
Prostate carcinoma (PCa) is one of the leading causes of cancer-related death in males, but biomarkers for the prognosis are rare. Capillary morphogenesis gene 2 (CMG2) is a modulator of extracellular matrix remodeling during angiogenesis. Four isoforms of CMG2 have been described so far, one secreted in the serum as soluble CMG2 (sCMG2). The aim of this study was to evaluate the sCMG2 serum concentrations in 179 PCa patients and 163 age-matched control subjects by ELISA and correlate it to clinical and demographic parameters. We observed that sCMG2 concentration is increased in the serum of PCa patients with metastases, while no significant differences in the concentrations were detected between the control subjects and patients with localized PCa. Furthermore, elevated sCMG2 concentrations were significantly associated with the highest T stage. Increased sCMG2 serum concentrations tended to be associated with a worsened overall and disease-specific survival of the PCa patients. In conclusion, sCMG2 may be an interesting additive biomarker for the prediction of the progression of PCa and the patients' outcome.
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6
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Capillary morphogenesis gene 2 maintains gastric cancer stem-like cell phenotype by activating a Wnt/β-catenin pathway. Oncogene 2018; 37:3953-3966. [PMID: 29662192 PMCID: PMC6053357 DOI: 10.1038/s41388-018-0226-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/29/2017] [Accepted: 02/23/2018] [Indexed: 02/07/2023]
Abstract
A growing body of evidence shows that the development and progression of gastric cancer (GC) is mainly associated to the presence of gastric cancer stem-like cells (GCSLCs). However, it is unclear how GCSLC population is maintained. This study aimed to explore the role of capillary morphogenesis gene 2 (CMG2) in GCSLC maintenance and the relevance to GC progression. We found that CMG2 was highly expressed in GC tissues and the expression levels were associated with the invasion depth and lymph node metastasis of GC, and inversely correlated with the survival of GC patients. Sorted CMG2High GC cells preferentially clustered in CD44High stem-like cell population, which expressed high levels of stemness-related genes with increased capabilities of self-renewal and tumorigenicity. Depletion of CMG2 gene resulted in reduction of GCSLC population with attenuated stemness and decrease of invasive and metastatic capabilities with subdued epithelial–mesenchymal transition phenotype in GC cells. Mechanistically, CMG2 interacted with LRP6 in GCSLCs to activate a Wnt/β-catenin pathway. Thus, our results demonstrate that CMG2 promotes GC progression by maintaining GCSLCs and can serve as a new prognostic indicator and a target for human GC therapy.
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7
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Tan J, Liu M, Zhang JY, Yao YL, Wang YX, Lin Y, Song K, Tan J, Wu JR, Cui YH, Wang Y, Bian XW. Capillary morphogenesis protein 2 is a novel prognostic biomarker and plays oncogenic roles in glioma. J Pathol 2018; 245:160-171. [PMID: 29473166 DOI: 10.1002/path.5062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 02/02/2018] [Accepted: 02/20/2018] [Indexed: 12/23/2022]
Abstract
Capillary morphogenesis protein 2 (CMG2) was originally identified through its participation in capillary morphogenesis, and subsequently identified as the second receptor for anthrax toxin (ANTXR2). Although tumor-associated functions of CMG2 have also been reported, the clinical significance and functional mechanism of CMG2 in glioma remain to be elucidated. We assessed the clinicopathological relevance of CMG2 in a cohort of 48 glioma patients as well as through public glioma databases, and explored the function of CMG2 using glioblastoma (GBM) models in vitro and in vivo. CMG2 overexpression was associated with increased tumor grade and poor patient survival. CMG2 promoted G2/M-phase transition during the cell cycle of GBM cells in vitro and contributed to tumor growth in vivo. We also observed that CMG2 is implicated in the activation of extracellular signal-regulated kinases (ERKs), epithelial-mesenchymal transition (EMT), migration, and invasion in GBM cells. Transcriptomic analysis of GBM cells with or without CMG2 overexpression indicated that a panel of oncogenic signaling pathways was altered with CMG2 upregulation, implying that CMG2 might orchestrate these signaling pathways to regulate the growth of GBM cells. Yes-associated protein 1 (YAP1) activity was enhanced by CMG2 overexpression but suppressed with CMG2 deficiency. Since YAP1 is critically implicated in GBM, the oncogenic roles of CMG2 in GBM cells might thus be mediated, at least partially, by YAP1. Altogether, CMG2 functioned as an oncogene in glioma cells and is a potential prognostic biomarker or therapeutic target for the clinical treatment of glioma. Copyright © 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Juan Tan
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Mei Liu
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Jun-Ying Zhang
- School of Pharmaceutical Sciences, Chongqing University, Chongqing, PR China
| | - Yue-Liang Yao
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Yan-Xia Wang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Yong Lin
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Kang Song
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Jiao Tan
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Jin-Rong Wu
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - You-Hong Cui
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Yan Wang
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
| | - Xiu-Wu Bian
- Department of Pathology, Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, PR China.,Key Laboratory of Tumor Immunology and Pathology of Ministry of Education, Chongqing, PR China
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Fu Y, Wei J, Dai X, Ye Y. Increased NDRG1 expression attenuate trophoblast invasion through ERK/MMP-9 pathway in preeclampsia. Placenta 2017; 51:76-81. [PMID: 28292472 DOI: 10.1016/j.placenta.2017.01.126] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/06/2017] [Accepted: 01/25/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the expression of N-myc downstream-regulated gene1(NDRG1)in the placentas of pregnancies complicated with early-onset and late-onset preeclampsia (PE) and its underlying mechanism on the pathophysiology of PE. METHODS The expressions of NDRG-1 in placentas of pregnancies complicated with early-onset PE and late-onset PE were detected using immunohistochemistry, western blot assays and fluorescence quantitative PCR. The expressions of MMP-2, MMP-9 and ERK1/2 protein were detected by western blot analysis and cell invasion assay was performed using transwell chambers in NDRG1 silenced JEG-3 cells. RESULTS Compared with the normal term pregnancies, the expression of both NDRG1 mRNA and protein were significantly high in placentas from PE, and the expression of NDRG1 in early-onset PE was higher than that in late-onset PE. In NDRG1-silenced JEG-3 cells, MMP-2, MMP-9 and phosphorylation of ERK1/2 protein increased obviously and the number of cells that penetrated the membrane increased. CONCLUSION Upregulation of NDRG1 is associated with impaired trophoblast invasion in PE by inhibition ERK/MMP-2 and MMP-9 Pathway.
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Affiliation(s)
- Yufen Fu
- Department of Obstetrics and Gynecology, Qingdao University, Qingdao 266000, China; Department of Obstetrics, Zibo Maternity and Child Health Hospital, Zibo 255000, China
| | - Jufeng Wei
- Department of Obstetrics and Gynecology, Qingdao University, Qingdao 266000, China; Department of Obstetrics, Qingdao Central Hospital, Qingdao 266000, China
| | - Xueli Dai
- Department of Obstetrics, Zibo Maternity and Child Health Hospital, Zibo 255000, China
| | - Yuanhua Ye
- Department of Obstetrics and Gynecology, Qingdao University, Qingdao 266000, China; Department of Obstetrics, Affiliated Hospital of Qingdao University, Qingdao 266000, China.
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Yang Q, Pan W, Qian L. Identification of the miRNA–mRNA regulatory network in multiple sclerosis. Neurol Res 2016; 39:142-151. [PMID: 27809691 DOI: 10.1080/01616412.2016.1250857] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Qinghe Yang
- Department of Neurology, The Second People’s Hospital of Liaocheng, Shandong, China
| | - Wei Pan
- Department of Neurology, The Second People’s Hospital of Liaocheng, Shandong, China
| | - Liwei Qian
- Department of Pediatric, The Second People’s Hospital of Liaocheng, Shandong, China
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10
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Han L, Liu B, Jiang L, Liu J, Han S. MicroRNA-497 downregulation contributes to cell proliferation, migration, and invasion of estrogen receptor alpha negative breast cancer by targeting estrogen-related receptor alpha. Tumour Biol 2016; 37:13205-13214. [PMID: 27456360 DOI: 10.1007/s13277-016-5200-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/13/2016] [Indexed: 02/07/2023] Open
Abstract
Metastasis has become the main challenge for treatment of estrogen receptor alpha (ERα) negative breast cancer. Here, we found a negative correlation between miR-497 and estrogen-related receptor alpha (ERRα), a nuclear receptor overexpressed in ERα negative breast cancer. Targeted inhibition of ERRα by si-RNA increased miR-497 expression while overexpression of ERRα inhibited miR-497 expression. Further investigation showed that miR-497 targeted ERRα by binding to the 3'UTR region of ERRα. Luciferase assay and ChIP assay confirmed that ERα directly regulated the transcription of miR-497, suggesting that loss of ERα lowered miR-497 level in ERα negative breast cancer. Further, overexpression of miR-497 not only inhibited ERRα expression but also reduced MIF level and MMP9 activity, which led to significant decreases in cell proliferation, migration, and invasion of ERα negative breast cancer. Taken together, our findings suggested that, in ERα negative breast cancer, the low level of ERα reduced miR-497 expression, which promoted ERRα expression that enhanced cell proliferation, migration, and invasion by increasing MIF expression and MMP9 activity.
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Affiliation(s)
- Li Han
- Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute, No.440 Ji Yan Road, Jinan, 250117, China.
| | - Bo Liu
- Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute, No.440 Ji Yan Road, Jinan, 250117, China
| | - Lixi Jiang
- Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute, No.440 Ji Yan Road, Jinan, 250117, China
| | - Junyan Liu
- Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute, No.440 Ji Yan Road, Jinan, 250117, China
| | - Shumei Han
- Department of Internal Medicine Oncology, Shandong Tumor Hospital and Institute, No.440 Ji Yan Road, Jinan, 250117, China
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Ma J, Fu G, Wu J, Han S, Zhang L, Yang M, Yu Y, Zhang M, Lin Y, Wang Y. 4-cholesten-3-one suppresses lung adenocarcinoma metastasis by regulating translocation of HMGB1, HIF1α and Caveolin-1. Cell Death Dis 2016; 7:e2372. [PMID: 27899819 PMCID: PMC5059879 DOI: 10.1038/cddis.2016.281] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 12/15/2022]
Abstract
Metastasis is a great challenge in lung adenocarcinoma (ADC) therapy. Cholesterol has been implicated in ADC metastasis. 4-cholesten-3-one, as cholesterol metabolite and analog, can substitute membrane cholesterol and increase membrane fluidity. In this study, we explored the possibility that 4-cholesten-3-one inhibited ADC metastasis. Low-dose 4-cholesten-3-one significantly restrained ADC cells migration and invasion with little effects on cells viabilities. Further investigation showed that 4-cholesten-3-one promoted ROS generation, which transiently activated AMPKα1, increased HIF1α expression, reduced Bcl-2 expression and caused autophagy. AMPKα1 knockdown partly suppressed 4-cholesten-3-one-induced autophagy but, neither prevented 4-cholesten-3-one-induced upregulation of HIF1α or downregulation of Bcl-2. 4-cholesten-3-one-induced autophagy facilitated the release of HMGB1 from nuclei to cytoplasm, blocking nuclear translocation of HIF1α and activation of MMP2 and MMP9. Also, 4-cholesten-3-one induced time-dependent phosphorylation of caveolin-1, Akt and NF-κB. With increasing treatment time, 4-cholesten-3-one accelerated caveolin-1 internalization, but reduced the phosphorylation of Akt and NF-κB, and inhibited the expression of snail and twist. These data suggested that 4-cholesten-3-one could be a potential candidate for anti-metastasis of lung adenocarcinoma.
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Affiliation(s)
- Jinben Ma
- Department of Anesthesiology, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Guobin Fu
- Department of Oncology, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Jing Wu
- Department of Anesthesiology, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Shaoxian Han
- Department of thoracic surgery, Shandong chest Hospital, Jinan 250021, China
| | - Lishan Zhang
- Department of Hand and Foot Surgery, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Ming Yang
- Department of Ultrasound, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yong Yu
- Department of Ultrasound, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Mengyuan Zhang
- Department of Anesthesiology, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yanliang Lin
- Department of Center Laboratory, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yibing Wang
- Department of burn and plastic surgery, Shandong provincial Hospital Affiliated to Shandong University, Jinan 250021, China
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Lv W, Chen N, Lin Y, Ma H, Ruan Y, Li Z, Li X, Pan X, Tian X. Macrophage migration inhibitory factor promotes breast cancer metastasis via activation of HMGB1/TLR4/NF kappa B axis. Cancer Lett 2016; 375:245-255. [PMID: 26952810 DOI: 10.1016/j.canlet.2016.02.005] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 02/01/2016] [Accepted: 02/02/2016] [Indexed: 12/15/2022]
Abstract
Macrophage migration inhibitory factor (MIF) is up-regulated in diverse solid tumors and acts as the critical link between immune response and tumorigenesis. In this study, we demonstrated that MIF overexpression promoted migration of breast cancer cells by elevating TLR4 expression. Further investigation evidenced that MIF induced ROS generation. MIF-induced ROS led to ERK phosphorylation, which facilitated HMGB1 release from the nucleus to the cytoplasm. MIF overexpression also induced caveolin-1 phosphorylation. Caveolin-1 phosphorylation contributed to HMGB1 secretion from the cytoplasm to the extracellular matrix. The extracellular HMGB1 activated TLR4 signaling including NF-κB phosphorylation, which was responsible for the transcription of Snail and Twist as well as MMP2 activation. Furthermore, MIF-induced caveolin-1-dependent HMGB1 secretion might control the recruitment of CD11b+ immune cells. Our data suggested that MIF affected the intrinsic properties of tumors and the host immune response in tumor microenvironment by regulating the TLR4/HMGB1 axis, leading to metastasis of breast cancer.
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Affiliation(s)
- Wei Lv
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Na Chen
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yanliang Lin
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Hongyan Ma
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Yongwei Ruan
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Zhiwei Li
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Xungeng Li
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Xiaohua Pan
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China
| | - Xingsong Tian
- Department of Breast and Thyroid Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China.
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Saw Palmetto Extract Inhibits Metastasis and Antiangiogenesis through STAT3 Signal Pathway in Glioma Cell. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:926946. [PMID: 26788112 PMCID: PMC4692995 DOI: 10.1155/2015/926946] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/28/2015] [Indexed: 01/13/2023]
Abstract
Signal transducer and activator of transcription factor 3 (STAT3) plays an important role in the proliferation and angiogenesis in human glioma. Previous research indicated that saw palmetto extract markedly inhibited the proliferation of human glioma cells through STAT3 signal pathway. But its effect on tumor metastasis and antiangiogenesis is not clear. This study is to further clear the impact of saw palmetto extract on glioma cell metastasis, antiangiogenesis, and its mechanism. TUNEL assay indicated that the apoptotic cells in the saw palmetto treated group are higher than that in the control group (p < 0.05). The apoptosis related protein is detected and the results revealed that saw palmetto extract inhibits the proliferation of human glioma. Meanwhile pSTAT3 is lower in the experimental group and CD34 is also inhibited in the saw palmetto treated group. This means that saw palmetto extract could inhibit the angiogenesis in glioma. We found that saw palmetto extract was an important phytotherapeutic drug against the human glioma through STAT3 signal pathway. Saw palmetto extract may be useful as an adjunctive therapeutic agent for treatment of individuals with glioma and other types of cancer in which STAT3 signaling is activated.
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Xia Y, Chen K, Zhang MH, Wang LC, Ma CY, Lin YL, Zhao YR. MicroRNA-124 involves in ankylosing spondylitis by targeting ANTXR2. Mod Rheumatol 2015; 25:784-9. [PMID: 25736362 DOI: 10.3109/14397595.2015.1023887] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES A recent genome-wide association study or GWAS identified that anthrax roxin receptor 2 (ANTXR2) was one of the risk loci for ankylosing spondylitis (AS). Previous study also showed that ANTXR2 could potentially affect new bone formation. This study aimed to investigate the possible mechanisms of ANTXR2 involved in AS pathogenesis. METHODS The expression level of ANTXR2 and miR-124 in peripheral blood was detected by quantitative real-time polymerase chain reaction or qRT-PCR. ANTXR2 was predicted to be a target gene of miR-124 by TargetScan, which was confirmed by luciferase reporter assays. Western blot analysis was used to further investigate the effect of miR-124 on c-Jun N-terminal kinase (JNK) activation and evaluate the activated status of autophagy. RESULTS We evidenced that ANTXR2 was downregulated and miR-124 was upregulated in peripheral blood from AS patients. Intriguingly, miR-124 targeted ANTXR2 and overexpression of miR-124 in Jurkat cells notably inhibited ANTXR2 expression. ANTXR2 inhibition by miR-124 promoted JNK activation and induced autophagy. CONCLUSIONS Our results suggested that miR-124 might induce autophagy to participate in AS by targeting ANTXR2, which might be implicated in pathological process of AS.
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Affiliation(s)
- Yu Xia
- a Department of Central Laboratory , Shandong Provincial Hospital affiliated to Shandong University , Jinan , China
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Duan G, Ren C, Zhang Y, Feng S. MicroRNA-26b inhibits metastasis of osteosarcoma via targeting CTGF and Smad1. Tumour Biol 2015; 36:6201-9. [PMID: 25761878 DOI: 10.1007/s13277-015-3305-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/02/2015] [Indexed: 12/27/2022] Open
Abstract
Downregulation of miR-26b has been found in various cancers, but it has never been investigated in osteosarcoma. In this study, we demonstrated downregulation of miR-26b in osteosarcoma tissues, negatively correlated with the expression of connective tissue growth factor (CTGF) and Smad1. Luciferase reporter assay confirmed the interaction of miR-26b with the 3' untranslated regions (UTRs) of CTGF and Smad1. Transfection of miR-26b in osteosarcoma cells suppressed the expression of CTGF and Smad1, suggesting CTGF and Smad1 as direct targets of miR-26b. Overexpression of miR-26b inhibited the migration of osteosarcoma cells, which was reversed by overexpression of CTGF or Smad1. Knockdown of CTGF by small interfering RNA (siRNA) interference blocked the activation of Smad1, ERK1/2, and MMP2, which was opposite to the overexpression of CTGF. Differently, Smad1 did not significantly affect CTGF level, but mediated ERK1/2 phosphorylation and MMP2 activation. Furthermore, miR-26b inhibited lung metastasis of osteosarcoma in vivo. Our data indicated that downregulation of miR-26b in osteosarcoma elevated the levels of CTGF and Smad1, facilitating osteosarcoma metastasis.
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Affiliation(s)
- Guoqing Duan
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, 300052, People's Republic of China
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