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Kuiper-Makris C, Selle J, Nüsken E, Dötsch J, Alejandre Alcazar MA. Perinatal Nutritional and Metabolic Pathways: Early Origins of Chronic Lung Diseases. Front Med (Lausanne) 2021; 8:667315. [PMID: 34211985 PMCID: PMC8239134 DOI: 10.3389/fmed.2021.667315] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Lung development is not completed at birth, but expands beyond infancy, rendering the lung highly susceptible to injury. Exposure to various influences during a critical window of organ growth can interfere with the finely-tuned process of development and induce pathological processes with aberrant alveolarization and long-term structural and functional sequelae. This concept of developmental origins of chronic disease has been coined as perinatal programming. Some adverse perinatal factors, including prematurity along with respiratory support, are well-recognized to induce bronchopulmonary dysplasia (BPD), a neonatal chronic lung disease that is characterized by arrest of alveolar and microvascular formation as well as lung matrix remodeling. While the pathogenesis of various experimental models focus on oxygen toxicity, mechanical ventilation and inflammation, the role of nutrition before and after birth remain poorly investigated. There is accumulating clinical and experimental evidence that intrauterine growth restriction (IUGR) as a consequence of limited nutritive supply due to placental insufficiency or maternal malnutrition is a major risk factor for BPD and impaired lung function later in life. In contrast, a surplus of nutrition with perinatal maternal obesity, accelerated postnatal weight gain and early childhood obesity is associated with wheezing and adverse clinical course of chronic lung diseases, such as asthma. While the link between perinatal nutrition and lung health has been described, the underlying mechanisms remain poorly understood. There are initial data showing that inflammatory and nutrient sensing processes are involved in programming of alveolarization, pulmonary angiogenesis, and composition of extracellular matrix. Here, we provide a comprehensive overview of the current knowledge regarding the impact of perinatal metabolism and nutrition on the lung and beyond the cardiopulmonary system as well as possible mechanisms determining the individual susceptibility to CLD early in life. We aim to emphasize the importance of unraveling the mechanisms of perinatal metabolic programming to develop novel preventive and therapeutic avenues.
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Affiliation(s)
- Celien Kuiper-Makris
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jaco Selle
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Eva Nüsken
- Department of Pediatric and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jörg Dötsch
- Department of Pediatric and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Miguel A. Alejandre Alcazar
- Department of Pediatric and Adolescent Medicine, Translational Experimental Pediatrics—Experimental Pulmonology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Excellence Cluster on Stress Responses in Aging-associated Diseases (CECAD), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Member of the German Centre for Lung Research (DZL), Institute for Lung Health, University of Giessen and Marburg Lung Centre (UGMLC), Gießen, Germany
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Wahdan-Alaswad RS, Song K, Krebs TL, Shola DTN, Gomez JA, Matsuyama S, Danielpour D. Retraction: Insulin-Like Growth Factor I Suppresses Bone Morphogenetic Protein Signaling in Prostate Cancer Cells by Activating mTOR Signaling. Cancer Res 2020; 80:1902. [PMID: 32366529 DOI: 10.1158/0008-5472.can-20-0679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Li J, Ye L, Shi X, Chen J, Feng F, Chen Y, Xiao Y, Shen J, Li P, Jiang WG, He J. Repulsive guidance molecule B inhibits metastasis and is associated with decreased mortality in non-small cell lung cancer. Oncotarget 2017; 7:15678-89. [PMID: 26910889 PMCID: PMC4941269 DOI: 10.18632/oncotarget.7463] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 01/26/2016] [Indexed: 11/25/2022] Open
Abstract
Repulsive guidance molecules (RGMs) are co-receptors of bone morphogenetic proteins (BMPs) and programmed death ligand 2 (PD-L2), and might be involved in lung and other cancers. We evaluated repulsive guidance molecule B (RGMB) expression in 165 non-small cell lung cancer (NSCLC) tumors and 22 normal lung tissue samples, and validated the results in an independent series of 131 samples. RGMB was downregulated in NSCLC (P ≤ 0.001), possibly through promoter hypermethylation. Reduced RGMB expression was observed in advanced-stage tumors (P = 0.017) and in tumors with vascular invasion (P < 0.01), and was significantly associated with poor overall survival (39 vs. 62 months, P < 0.001) and with disease-associated patient mortality (P = 0.015). RGMB knockdown promoted cell adhesion, invasion and migration, in both NSCLC cell lines and an in vivo mouse model, which enhanced metastatic potential. Conversely, RGMB overexpression and secretion suppressed cancer progression. The tumor-suppressing effect of RGMB was exerted through inhibition of the Smad1/5/8 pathway. Our results demonstrate that RGMB is an important inhibitor of NSCLC metastasis and that low RGMB expression is a novel predictor or a poor prognosis.
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Affiliation(s)
- Jin Li
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
| | - Lin Ye
- Cardiff-China Medical Research Collaborative, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Xiaoshun Shi
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
| | - Jingyi Chen
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
| | - Fenglan Feng
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
| | - Yaoqi Chen
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
| | - Yiren Xiao
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Jianfei Shen
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
| | - Peng Li
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Wen G Jiang
- Cardiff-China Medical Research Collaborative, Cardiff University School of Medicine, Cardiff, CF14 4XN, UK
| | - Jianxing He
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, National Clinical Research Center for Respiratory Disease, Guangzhou 510530, China
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Asrani K, Sood A, Torres A, Georgess D, Phatak P, Kaur H, Dubin A, Talbot CC, Elhelu L, Ewald AJ, Xiao B, Worley P, Lotan TL. mTORC1 loss impairs epidermal adhesion via TGF-β/Rho kinase activation. J Clin Invest 2017; 127:4001-4017. [PMID: 28945203 DOI: 10.1172/jci92893] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 08/02/2017] [Indexed: 12/14/2022] Open
Abstract
Despite its central position in oncogenic intracellular signaling networks, the role of mTORC1 in epithelial development has not been studied extensively in vivo. Here, we have used the epidermis as a model system to elucidate the cellular effects and signaling feedback sequelae of mTORC1 loss of function in epithelial tissue. In mice with conditional epidermal loss of the mTORC1 components Rheb or Rptor, mTORC1 loss of function unexpectedly resulted in a profound skin barrier defect with epidermal abrasions, blistering, and early postnatal lethality, due to a thinned epidermis with decreased desmosomal protein expression and incomplete biochemical differentiation. In mice with mTORC1 loss of function, we found that Rho kinase (ROCK) signaling was constitutively activated, resulting in increased cytoskeletal tension and impaired cell-cell adhesion. Inhibition or silencing of ROCK1 was sufficient to rescue keratinocyte adhesion and biochemical differentiation in these mice. mTORC1 loss of function also resulted in marked feedback upregulation of upstream TGF-β signaling, triggering ROCK activity and its downstream effects on desmosomal gene expression. These findings elucidate a role for mTORC1 in the regulation of epithelial barrier formation, cytoskeletal tension, and cell adhesion, underscoring the complexity of signaling feedback following mTORC1 inhibition.
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Affiliation(s)
| | | | | | - Dan Georgess
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Pornima Phatak
- Baltimore Veterans Affairs Medical Center, Baltimore, Maryland, USA
| | | | | | | | | | - Andrew J Ewald
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Oncology, and
| | - Bo Xiao
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Paul Worley
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Tamara L Lotan
- Department of Pathology and.,Department of Oncology, and
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Hu M, Cui F, Liu F, Wang J, Wei X, Li Y. BMP signaling pathways affect differently migration and invasion of esophageal squamous cancer cells. Int J Oncol 2016; 50:193-202. [DOI: 10.3892/ijo.2016.3802] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 12/05/2016] [Indexed: 11/06/2022] Open
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Chen X, Duan N, Zhang C, Zhang W. Survivin and Tumorigenesis: Molecular Mechanisms and Therapeutic Strategies. J Cancer 2016; 7:314-23. [PMID: 26918045 PMCID: PMC4747886 DOI: 10.7150/jca.13332] [Citation(s) in RCA: 215] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 11/25/2015] [Indexed: 12/15/2022] Open
Abstract
Survivin is the smallest member of the inhibitor of apoptosis protein family, which has key roles in regulating cell division and inhibiting apoptosis by blocking caspase activation. Survivin is highly expressed in most human cancers, such as lung, pancreatic and breast cancers, relative to normal tissues. Aberrant survivin expression is associated with tumor cell proliferation, progression, angiogenesis, therapeutic resistance, and poor prognosis. Studies on the underlying molecular mechanisms indicate that survivin is involved in the regulation of cytokinesis and cell cycle progression, as well as participates in a variety of signaling pathways such as the p53, Wnt, hypoxia, transforming growth factor, and Notch signaling pathways. In this review, recent progress in understanding the molecular basis of survivin is discussed. Therapeutic strategies targeting survivin in preclinical studies are also briefly summarized.
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Affiliation(s)
- Xun Chen
- 1. Hong-Hui Hospital, Xi'an Jiaotong University, College of Medicine, Xi'an, Shaanxi, China, 710054
| | - Ning Duan
- 1. Hong-Hui Hospital, Xi'an Jiaotong University, College of Medicine, Xi'an, Shaanxi, China, 710054
| | - Caiguo Zhang
- 2. Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA, 80045
| | - Wentao Zhang
- 1. Hong-Hui Hospital, Xi'an Jiaotong University, College of Medicine, Xi'an, Shaanxi, China, 710054
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Zhang X, Ai F, Li X, She X, Li N, Tang A, Qin Z, Ye Q, Tian L, Li G, Shen S, Ma J. Inflammation-induced S100A8 activates Id3 and promotes colorectal tumorigenesis. Int J Cancer 2015; 137:2803-14. [PMID: 26135667 DOI: 10.1002/ijc.29671] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 06/22/2015] [Indexed: 12/26/2022]
Abstract
The aberrant expression of S100A8 and S100A9 is linked to nonresolving inflammation and ultimately to carcinogenesis, whereas the underlying mechanism that allows inflammation to progress to specific cancer types remains unknown. Here, we report that S100A8 was induced by inflammation and then promoted colorectal tumorigenesis downstream by activating Id3 (inhibitor of differentiation 3). Using gene expression profiling and immunohistochemistry, we found that both S100A8 and S100A9 were upregulated in the chemically-induced colitis-associated cancer mouse model and in human colorectal cancer specimens. Furthermore, we showed that S100A8 and S100A9 acted as chemoattractant proteins by recruiting macrophages, promoting the proliferation and invasion of colon cancer cell, as well as spurring the cycle that culminates in the acceleration of cancer metastasis in a nude mouse model. S100A8 regulated colon cancer cell cycle and proliferation by inducing Id3 expression while inhibiting p21. Id3 expression was regulated by Smad5, which was directly phosphorylated by Akt1. Our study revealed a novel mechanism in which inflammation-induced S100A8 promoted colorectal tumorigenesis by acting upstream to activate the Akt1-Smad5-Id3 axis.
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Affiliation(s)
- Xuemei Zhang
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Cancer Research Institute, Central South University, Changsha, China
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Ministry of Health; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Feiyan Ai
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Xiayu Li
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Xiaoling She
- Department of Pathology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Nan Li
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Anliu Tang
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Zailong Qin
- Cancer Research Institute, Central South University, Changsha, China
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Ministry of Health; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Qiurong Ye
- Cancer Research Institute, Central South University, Changsha, China
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Ministry of Health; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Li Tian
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Guiyuan Li
- Cancer Research Institute, Central South University, Changsha, China
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Ministry of Health; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Shourong Shen
- Department of Gastroenterology, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
| | - Jian Ma
- Cancer Research Institute, Central South University, Changsha, China
- The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
- Key Laboratory of Carcinogenesis, Ministry of Health; Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Changsha, China
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Tang L, Yue B, Cheng Y, Yao H, Ma X, Tian Q, Ge L, Liu Z, Han X. Inhibition of invasion and metastasis by DMBT, a novel trehalose derivative, through Akt/GSK-3β/β-catenin pathway in B16BL6 cells. Chem Biol Interact 2014; 222:7-17. [PMID: 25148938 DOI: 10.1016/j.cbi.2014.08.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 07/14/2014] [Accepted: 08/11/2014] [Indexed: 12/19/2022]
Abstract
Invasion, either directly or via metastasis formation, is the main cause of death in cancer patients. Development of efficient anti-invasive agents is an important research challenge. 6,6'-bis (2,3-dimethoxybenzoyl)-a, a-d-trehalose (DMBT), one of brartemicin analogs, was found to be the most potent anti-invasive agent, but the underlying mechanisms are poorly understood. Our current study was to explore the effects of DMBT on invasion and metastasis in B16BL6 cells. Antiproliferation assay and trypan blue exclusion assay showed that no obvious inhibitory or cytotoxic effect of DMBT was found in B16BL6 cells. Wound healing demonstrated that DMBT could inhibit cell migration compared with the normal group. Transwell experiments showed that DMBT could significantly inhibit invasion to the reconstituted basement membrane (P<0.01). We examined the effects of lung metastasis produced by highly metastatic B16BL6 melanoma cells by using experimental metastasis models and BLI analysis. DMBT could significantly suppress lung metastasis in mice. Results from immunohistochemical staining, Western blotting and real-time PCR indicated that the chemopreventive effect of DMBT was attributed to the inhibition of the VEGF and MMP-9 through Akt/GSK-3β/β-catenin and Akt/mTOR signaling pathways. These results suggested that DMBT could be a promising lead molecule for the anti-metastasis and serve as a therapeutic agent to inhibit cancer cell invasion and metastasis.
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Affiliation(s)
- Linlin Tang
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Bin Yue
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Yanna Cheng
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China; Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, China
| | - Hong Yao
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Xiaowen Ma
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Qi Tian
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Lianping Ge
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China
| | - Zhaopeng Liu
- Department of Medicinal Chemistry, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China; Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, China
| | - Xiuzhen Han
- Department of Pharmacology, School of Pharmaceutical Sciences, Shandong University, 44 West Wenhua Road, Jinan 250012, China; Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, China.
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Zhang J, Bi M, Zhong F, Jiao X, Zhang D, Dong Q. Role of CIP4 in high glucose induced epithelial--mesenchymal transition of rat peritoneal mesothelial cells. Ren Fail 2013; 35:989-95. [PMID: 23819628 DOI: 10.3109/0886022x.2013.808957] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Peritoneal mesothelial cell (PMC) plays a key role in the process of peritoneal fibrosis. Epithelial-mesenchymal transition (EMT) of PMCs is an important mechanism of peritoneal fibrosis. Prolonged exposure to peritoneal dialysis fluid containing a high concentration of glucose may lead to EMT of PMCs. Cdc42-interacting protein-4 (CIP4) is a critical regulator of cell skeleton and downstream effector of Cdc42 and participates in EMT of tubular epithelial cells. In the present study, we investigate the possible role of CIP4 in EMT of PMC under high glucose (HG) condition in vitro and further explore the potential therapeutic point for peritoneal fibrosis. METHODS Rat peritoneal mesothelial cells (RPMCs) were isolated from the peritonea of rats by enzymatic digestion. Under HG conditions (1.5%, 2.5% and 4.25%), E-cadherin, α-SMA and CIP4 expression were assessed by Western blot. Effect of CIP4-siRNA and pcDNA3.1-CIP4 transfection on E-cadherin, α-SMA and CIP4 expression were also assessed respectively under 2.5% HG concentration. Cells were pretreated for 24 h with PI3K/Akt signaling inhibitor perifosine and effect of perifosine on CIP4 expression were detected by Western blot. RESULTS EMT induction by HG was confirmed by the prevalence of morphological changes, loss of E-cadherin, increase in α-SMA expression. CIP4-siRNA transfection can reverse EMT of RPMCs. Over-expression of CIP4 promoted characteristics similar to those commonly observed in EMT. Furthermore, the increased CIP4 in response to HG was efficiently inhibited by perifosine. CONCLUSION This study shows that CIP4 promotes high glucose-induced EMT through PI3K-Akt signaling pathway in RPMCs.
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Affiliation(s)
- Jian Zhang
- Department of Surgery, Affiliated Hospital of Medical College Qingdao University, 16 Jiangsu Road, Qingdao, Shandong Province, P.R. China
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Xu CZ, Xie J, Jin B, Chen XW, Sun ZF, Wang BX, Dong P. Gene and microRNA expression reveals sensitivity to paclitaxel in laryngeal cancer cell line. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2013; 6:1351-1361. [PMID: 23826416 PMCID: PMC3693200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 05/29/2013] [Indexed: 06/02/2023]
Abstract
Paclitaxel is a widely used chemotherapy drug for advanced laryngeal cancer patients. However, the fact that there are 20-40% of advanced laryngeal cancer patients do not response to paclitaxel makes it necessary to figure out potential biomarkers for paclitaxel sensitivity prediction. In this work, Hep2, a laryngeal cancer cell line, untreated or treated with lower dose of paclitaxel for 24 h, was applied to DNA microarray chips for gene and miR expression profile analysis. Expression of eight genes altered significantly following paclitaxel treatment, which was further validated by quantitative real-time PCR. Four up-regulated genes were ID2, BMP4, CCL4 and ACTG2, in which ID2 and BMP4 were implicated to be involved in several drugs sensitivity. While the down-regulated four genes, MAPK4, FASN, INSIG1 and SCD, were mainly linked to the endoplasmic reticulum and fatty acid biosynthesis, these two cell processes that are associated with drug sensitivity by increasing evidences. After paclitaxel treatment, expression of 49 miRs was significantly altered. Within these miRs, the most markedly expression-changed were miR-31-star, miR-1264, miR-3150b-5p and miR-210. While the miRs putatively modulated the mRNA expression of the most significantly expression-altered genes were miR-1264, miR-130a, miR-27b, miR-195, miR-1291, miR-214, miR-1277 and miR-1265, which were obtained by miR target prediction and miRNA target correlation. Collectively, our study might provide potential biomarkers for paclitaxel sensitivity prediction and drug resistance targets in laryngeal cancer patients.
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Affiliation(s)
- Cheng-Zhi Xu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People’s Hospital, School of medicine, Shanghai Jiao Tong UniversityShanghai, China
| | - Jin Xie
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
| | - Bin Jin
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
| | - Xin-Wei Chen
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
| | - Zhen-Feng Sun
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
| | - Bao-Xing Wang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
| | - Pin Dong
- Department of Otolaryngology-Head and Neck Surgery, Shanghai First People’s Hospital affiliated to Shanghai Jiao Tong UniversityShanghai, China
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WU XINGLI, YANG DINGYOU, TAN DUANJUN, YAO HENGCHEN, CHAI WENHUI, PENG LI. Inhibitory effect of atorvastatin on the cell growth of cardiac myxomas via the PTEN and PHLPP2 phosphatase signaling pathway. Oncol Rep 2013; 30:757-62. [DOI: 10.3892/or.2013.2501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Accepted: 05/04/2013] [Indexed: 11/06/2022] Open
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12
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Song K, Shankar E, Yang J, Bane KL, Wahdan-Alaswad R, Danielpour D. Critical role of a survivin/TGF-β/mTORC1 axis in IGF-I-mediated growth of prostate epithelial cells. PLoS One 2013; 8:e61896. [PMID: 23658701 PMCID: PMC3641055 DOI: 10.1371/journal.pone.0061896] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Accepted: 03/14/2013] [Indexed: 11/19/2022] Open
Abstract
Survivin is a unique member of the inhibitor of apoptosis (IAP) proteins that is overexpressed in numerous cancers through poorly defined mechanisms. One such mechanism may be through constitutive activation of the insulin-like growth factor-I (IGF-I) signaling pathway, implicated in the development and progression of prostate cancer. Using the pre-neoplastic NRP-152 rat prostate cell line as a model, we showed that IGF-I induces Survivin expression, and that silencing Survivin by lentiviral-mediated small hairpin RNA (shRNA) represses IGF-I-stimulated cell growth, implicating Survivin as a mediator of this growth response. Moreover, our data support that the induction of Survivin by IGF-I occurs through a transcriptional mechanism that is mediated in part by the PI3K/Akt/mTORC1 pathway. Use of various Survivin promoter-luciferase constructs revealed that the CDE and CHR response elements in the proximal region of the Survivin promoter are involved in this IGF-I response. Transforming growth factor (TGF-β) signaling antagonists similarly activated the Surivin promoter and rendered cells refractory to further promoter activation by IGF-I. IGF-I suppressed levels of phospho-Smads 2 and 3 with kinetics similar to that of Survivin induction. Suppression of TGF-β signaling, either by TGF-β receptor kinase inhibitors or by silencing Smads 2 and 3, induced Survivin expression and promoted cell growth similar to that induced by IGF-I. TGF-β receptor antagonists also rescued cells from down-regulation of Survivin expression and growth suppression by pharmacological inhibitors of PI3K, Akt, MEK and mTOR. Sh-RNA gene silencing studies suggest that mTORC1 induces while mTORC2 represses the expression of Survivin by IGF-I. Taken together, these results suggest that IGF-I signaling through a PI3K/Akt/mTORC1 mechanism elevates expression of Survivin and promotes growth of prostate epithelial cells by suppressing Smad-dependent autocrine TGF-β signaling.
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Affiliation(s)
- Kyung Song
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Eswar Shankar
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Jiayi Yang
- Department of Biochemistry, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Kara L. Bane
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Reema Wahdan-Alaswad
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - David Danielpour
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, Ohio, United States of America
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, United States of America
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Investigation of sequential growth factor delivery during cuprizone challenge in mice aimed to enhance oligodendrogliogenesis and myelin repair. PLoS One 2013; 8:e63415. [PMID: 23650566 PMCID: PMC3641124 DOI: 10.1371/journal.pone.0063415] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Accepted: 04/03/2013] [Indexed: 12/16/2022] Open
Abstract
Repair in multiple sclerosis involves remyelination, a process in which axons are provided with a new myelin sheath by new oligodendrocytes. Bone morphogenic proteins (BMPs) are a family of growth factors that have been shown to influence the response of oligodendrocyte progenitor cells (OPCs) in vivo during demyelination and remyelination in the adult brain. We have previously shown that BMP4 infusion increases numbers of OPCs during cuprizone-induced demyelination, while infusion of Noggin, an endogenenous antagonist of BMP4 increases numbers of mature oligodendrocytes and remyelinated axons following recovery. Additional studies have shown that insulin-like growth factor-1 (IGF-1) promotes the survival of OPCs during cuprizone-induced demyelination. Based on these data, we investigated whether myelin repair could be further enhanced by sequential infusion of these agents firstly, BMP4 to increase OPC numbers, followed by either Noggin or IGF-1 to increase the differentiation and survival of the newly generated OPCs. We identified that sequential delivery of BMP4 and IGF-1 during cuprizone challenge increased the number of mature oligodendrocytes and decreased astrocyte numbers following recovery compared with vehicle infused mice, but did not alter remyelination. However, sequential delivery of BMP4 and Noggin during cuprizone challenge did not alter numbers of oligodendrocytes or astrocytes in the corpus callosum compared with vehicle infused mice. Furthermore, electron microscopy analysis revealed no change in average myelin thickness in the corpus callosum between vehicle infused and BMP4-Noggin infused mice. Our results suggest that while single delivery of Noggin or IGF-1 increased the production of mature oligodendrocytes in vivo in the context of demyelination, only Noggin infusion promoted remyelination. Thus, sequential delivery of BMP4 and Noggin or IGF-1 does not further enhance myelin repair above what occurs with delivery of Noggin alone.
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Palaniappan M, Menon B, Menon KMJ. Stimulatory effect of insulin on theca-interstitial cell proliferation and cell cycle regulatory proteins through MTORC1 dependent pathway. Mol Cell Endocrinol 2013; 366:81-9. [PMID: 23261705 PMCID: PMC3552006 DOI: 10.1016/j.mce.2012.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2012] [Revised: 11/22/2012] [Accepted: 12/05/2012] [Indexed: 11/25/2022]
Abstract
The present study examined the effect of insulin-mediated activation of the mammalian target of rapamycin complex 1 (MTORC1) signaling network on the proliferation of primary culture of theca-interstitial (T-I) cells. Our results show that insulin treatment increased proliferation of the T-I cells through the MTORC1-dependent signaling pathway by increasing cell cycle regulatory proteins. Inhibition of ERK1/2 signaling caused partial reduction of insulin-induced phosphorylation of RPS6KB1 and RPS6 whereas inhibition of PI3-kinase signaling completely blocked the insulin response. Pharmacological inhibition of MTORC1 with rapamycin abrogated the insulin-induced phosphorylation of EIF4EBP1, RPS6KB1 and its downstream effector, RPS6. These results were further confirmed by demonstrating that knockdown of Mtor using siRNA reduced the insulin-stimulated MTORC1 signaling. Furthermore, insulin-stimulated T-I cell proliferation and the expression of cell cycle regulatory proteins CDK4, CCND3 and PCNA were also blocked by rapamycin. Taken together, the present studies show that insulin stimulates cell proliferation and cell cycle regulatory proteins in T-I cells via activation of the MTORC1 signaling pathway.
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Affiliation(s)
- Murugesan Palaniappan
- Department of Obstetrics and Gynecology, University of Michigan Medical School, Ann Arbor, MI 48109, United States
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Bone morphogenetic protein 4 expression in multiple normal and tumor tissues reveals its importance beyond development. Mod Pathol 2013; 26:10-21. [PMID: 22899288 DOI: 10.1038/modpathol.2012.128] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bone morphogenetic proteins (BMPs) are extracellular signaling molecules that belong to the transforming growth factor β (TGFβ) superfamily and are known to regulate cell proliferation, differentiation and motility, especially during development. BMP4 has an indispensable role in vertebrate development while limited information on BMP4 expression and function exists in adult tissues. Nevertheless, its contribution to cancer development and progression has gained increasing interest in recent years. Functional studies, especially in breast cancer, have implicated BMP4 both in inhibition of cell proliferation and in promotion of cell migration and invasion. To gain an insight into the function of BMP4 in normal and cancer tissues, BMP4 protein expression levels were analyzed by immunohistochemistry in 34 different normal organs/tissues, 34 different tumor types and finally in 486 breast cancer samples where possible associations between BMP4 and clinicopathological parameters were statistically evaluated. In over 20% of normal and malignant tissues, BMP4 was expressed at high level. Strong expression was observed particularly in some normal epithelial cells, such as bladder and stomach, and in squamous cell carcinomas. In breast cancer, strong BMP4 expression was detected in 25% of patients, and was associated with low proliferation index and increased frequency of tumor recurrence. Taken together, BMP4 is expressed in a subset of normal adult tissues and is likely to contribute to tissue homeostasis. However, in tumors, BMP4 expression levels vary considerably, implying diverse roles in different tumor types. This role is biphasic in breast cancer as BMP4 expression is linked to reduced proliferation and increased recurrence, thus corroborating our previous in-vitro functional data.
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Combined Inhibition of IGF-1R/IR and Src family kinases enhances antitumor effects in prostate cancer by decreasing activated survival pathways. PLoS One 2012; 7:e51189. [PMID: 23300537 PMCID: PMC3530555 DOI: 10.1371/journal.pone.0051189] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 10/30/2012] [Indexed: 11/19/2022] Open
Abstract
Background Treatment of metastatic prostate cancer (PCa) with single agents has shown only modest efficacy. We hypothesized dual inhibition of different pathways in PCa results in improved tumor inhibition. The Src family kinases (SFK) and insulin-like growth factor-1 (IGF-1) signaling axes are aberrantly activated in both primary PCa and bone metastases and regulate distinct and overlapping functions in PCa progression. We examined the antitumor effects of combined inhibition of these pathways. Materials and Methods Src andIGF-1 receptor (IGF-1R) inhibition was achieved in vitro by short hairpin (sh)RNA and in vitro and in vivo by small molecule inhibitors (dasatinib and BMS-754807, against SFK and IGF-1R/Insulin Receptor(IR), respectively). Results In vitro, inhibition of IGF-1 signaling affected cell survival and proliferation. SFK blockade alone had modest effects on proliferation, but significantly enhanced the IGF-1R blockade. These findings correlated with a robust inhibition of IGF-1-induced Akt1 phophorylation by dasatinib, whereas Akt2 phosphorylation was SFK independent and only inhibited by BMS-754807. Thus, complete inhibition of both Akt genes, not seen by either drug alone, is likely a major mechanism for the decreased survival of PCa cells. Furthermore, dasatinib and BMS-754807 inhibited in vivo growth of the primary human xenograft MDA PCa 133, with corresponding inhibition of Akt in tumors. Also, both orthotopic and intratibial tumor growth of PC-3 cells were more potently inhibited by dual SFK and IGF-1R/IR blockade compared to either pathway alone, with a corresponding decrease in bone turnover markers. Conclusions Dual IGF-1R/IR and SFK inhibition may be a rational therapeutic approach in PCa by blocking both independent and complementary processes critical to tumor growth.
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Wahdan-Alaswad RS, Bane KL, Song K, Shola DT, Garcia JA, Danielpour D. Inhibition of mTORC1 kinase activates Smads 1 and 5 but not Smad8 in human prostate cancer cells, mediating cytostatic response to rapamycin. Mol Cancer Res 2012; 10:821-33. [PMID: 22452883 PMCID: PMC3557528 DOI: 10.1158/1541-7786.mcr-11-0615] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Although hyperactivated mTOR is well recognized as being pivotal to prostate cancer growth and progression, the underlying mechanisms by which it promotes such responses remain incompletely understood. Here, we show that rapamycin activates Smads 1 and 5 in human prostate cancer cells and tissues through blocking mTORC1 kinase. Small hairpin RNA-based gene silencing and gene overexpression approaches reveal that Smads 1 and 5 mediate, whereas Smad8 represses, rapamycin-induced cell death and expression of the bone morphogenetic protein (BMP) transcriptional target Id1 in human prostate cancer cell lines. Moreover, such phospho-Smad1/5-mediated rapamycin responses were blocked by LDN-193189 (a BMPRI kinase inhibitor) or Noggin (a BMP antagonist) in LNCaP prostate cancer cells. Likewise, the mTOR kinase inhibitors Ku-0063794 and WYE-354 each enhanced phosphorylation of Smad1/5. Intriguingly, silencing raptor alone enhanced, whereas silencing rictor repressed, the phosphorylation of Smad1/5, indicating that mTORC1 represses, whereas mTORC2 activates, BMP signaling. Immunohistochemical analysis showed increased levels of phospho-Smad1/5 concomitant with suppression of phospho-S6 and survivin levels in PC3 human prostate cancer xenografts in athymic mice administered rapamycin (intraperitoneally, 5 mg/kg/d, 2-6 days). Moreover, we show that compared with prostate tumor tissue from untreated patients, levels of phospho-Smad1/5 were significantly elevated in the prostate tumor tissue of patients with high-risk prostate cancer who received 8 weeks of the rapalog everolimus as part of a neoadjuvant clinical trial before undergoing local definitive therapy by radical prostatectomy. Taken together, our data implicate Smads 1, 5 and 8 as potential prognostic markers and therapeutic targets for mTOR inhibition therapy of prostate cancer.
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Affiliation(s)
- Reema S. Wahdan-Alaswad
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
- Department of Pharmacology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Kara L. Bane
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Kyung Song
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Dorjee T.N. Shola
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
- Department of Molecular Biology and Microbiology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Jorge A. Garcia
- Department of Solid Tumor Oncology and Urology, Cleveland Clinic Taussig Cancer Institute
- Glickman Urological & Kidney Institute Cleveland Clinic, Cleveland, Ohio
| | - David Danielpour
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
- Department of Pharmacology, Case Western Reserve University, at Case Western Reserve University School of Medicine, Cleveland, Ohio
- Department of Urology, University Hospitals of Cleveland, Ohio
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Wang X, Chrysovergis K, Bienstock RJ, Shim M, Eling TE. The H6D variant of NAG-1/GDF15 inhibits prostate xenograft growth in vivo. Prostate 2012; 72:677-89. [PMID: 21809352 PMCID: PMC3209492 DOI: 10.1002/pros.21471] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 07/13/2011] [Indexed: 01/02/2023]
Abstract
BACKGROUND Non-steroidal anti-inflammatory drug-activated gene (NAG-1), a divergent member of the transforming growth factor-beta superfamily, has been implicated in many cellular processes, including inflammation, early bone formation, apoptosis, and tumorigenesis. Recent clinical studies suggests that a C to G single nucleotide polymorphism at position 6 (histidine to aspartic acid substitution, or H6D) of the NAG-1 protein is associated with lower human prostate cancer incidence. The objective of the current study is to investigate the activity of NAG-1 H6D variant in prostate cancer tumorigenesis in vivo. METHODS Human prostate cancer DU145 cells expressing the H6D NAG-1 or wild-type (WT) NAG-1 were injected subcutaneously into nude mice and tumor growth was monitored. Serum and tumor samples were collected for subsequent analysis. RESULTS The H6D variant was more potent than the WT NAG-1 and inhibited tumor growth significantly compared to control mice. Mice with tumors expressing the WT NAG-1 have greater reduced both body weight and abdominal fat than mice with H6D variant tumors suggesting different activities of the WT NAG-1 and the H6D NAG-1. A significant reduction in adiponectin, leptin, and IGF-1 serum levels was observed in the tumor-bearing mice with a more profound reduction observed with expression of H6D variant. Cyclin D1 expression was suppressed in the tumors with a dramatic reduction observed in the tumor expressing the H6D variant. CONCLUSION Our data suggest that the H6D variant of NAG-1 inhibits prostate tumorigenesis by suppressing IGF-1 and cyclin D1 expression but likely additional mechanisms are operative.
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Affiliation(s)
- Xingya Wang
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, 111. T.W. Alexander Dr. Research Triangle Park, North Carolina 27709
| | - Kali Chrysovergis
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, 111. T.W. Alexander Dr. Research Triangle Park, North Carolina 27709
| | - Rachelle J. Bienstock
- Laboratory of Structural Biology, National Institute of Environmental Health Sciences, 111. T.W. Alexander Dr. Research Triangle Park, North Carolina 27709
| | - Minsub Shim
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, 111. T.W. Alexander Dr. Research Triangle Park, North Carolina 27709
| | - Thomas E. Eling
- Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, 111. T.W. Alexander Dr. Research Triangle Park, North Carolina 27709
- Correspondence should be addressed to Thomas E. Eling, Tel.: 919-541-3911; Fax: 919-541-0146; . Laboratory of Molecular Carcinogenesis, National Institute of Environmental Health Sciences, 111. T.W. Alexander Dr. Research Triangle Park, North Carolina 27709
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Bucur O, Stancu AL, Khosravi-Far R, Almasan A. Analysis of apoptosis methods recently used in Cancer Research and Cell Death & Disease publications. Cell Death Dis 2012; 3:e263. [PMID: 22297295 PMCID: PMC3288344 DOI: 10.1038/cddis.2012.2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Bibliography. Parathyroids, bone and mineral metabolism. Current world literature. Curr Opin Endocrinol Diabetes Obes 2011; 18:418-22. [PMID: 22024994 DOI: 10.1097/med.0b013e32834decbe] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Shola DTN, Wang H, Wahdan-Alaswad R, Danielpour D. Hic-5 controls BMP4 responses in prostate cancer cells through interacting with Smads 1, 5 and 8. Oncogene 2011; 31:2480-90. [PMID: 21996749 PMCID: PMC3340512 DOI: 10.1038/onc.2011.422] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Hydrogen peroxide-inducible clone-5 (Hic-5, or androgen receptor-associated protein 55) is a transforming growth factor-β (TGF-β)-inducible LIM protein whose deregulation is implicated in the progression of prostate cancer. Here we report that Hic-5 binds to Smads 1, 5 and 8, and represses bone morphogenetic protein (BMP) signaling responses. Myc-Hic-5 but not Myc-paxillin was specifically immunoprecipitated with anti-FLAG IgG1 from lysates of HEK293 co-transfected with either Myc-Hic-5 or Myc-paxillin and FLAG-tagged Smads 1, 5 or 8. We showed that such interactions require the LIM3 domain of Hic-5 and the MH2 domain of those Smads. Anti-Hic-5 antibody specifically pulled down endogenous Smad1 in both the PC3 human prostate cell line and primary cultures of rat prostate fibroblasts, supporting that Hic-5 binds to Smad1 at the endogenous level. Bacterially expressed GST-Smads 1, 5 or 8, but not GST alone, pulled down in vitro transcribed and translated Hic-5, implicating that Hic-5 binds directly to Smads 1, 5 and 8. Significantly, using Hic-5 shRNA silencing and overexpression systems, we show that Hic-5 (at both the endogenous and exogenous levels) represses the ability of BMP4 to induce expression of the inhibitor of differentiation-1 (Id1) (a downstream target gene of BMP), activate the Id1 gene promoter and induce apoptosis in human and rat prostate epithelial cells. Moreover, silencing of Hic-5 in PC3 cells as well as in the WPMY-1 human prostate stroma cell line greatly enhances the levels of endogenous phospho-Smad1/5/8. Finally, we provide fluorescent microscopic imaging to support that Smad1 and Hic-5 mutually interact also at the level of their nuclear export mechanisms. Collectively, these results provide the first evidence for a physical and mutual functional interaction between Hic-5 and the BMP signaling pathway.
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Affiliation(s)
- D T N Shola
- Case Comprehensive Cancer Center Research Laboratories, The Division of General Medical Sciences-Oncology, Case Western Reserve University, Cleveland, OH 44106, USA
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Jin JK, Dayyani F, Gallick GE. Steps in prostate cancer progression that lead to bone metastasis. Int J Cancer 2011; 128:2545-61. [PMID: 21365645 PMCID: PMC3082284 DOI: 10.1002/ijc.26024] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 01/28/2011] [Indexed: 12/14/2022]
Abstract
Prostate cancer is a complex disease in which metastasis to the bone is the main cause of death. Initial stages of metastasis are generally similar to those for most solid tumors; however, the mechanisms that underlie the homing of prostate tumor cells to the bone are not completely understood. Prostate cancer bone metastasis is also a microenvironment-driven disease, involving bidirectional interactions between the tumor and the bone microenvironment. In this review, we discuss the current understanding of the biologic processes and regulatory factors involved in the metastasis of prostate cancer cells, and their specific properties that promote growth in bone. Although many of these processes still need to be fully elucidated, a better understanding of the complex tumor/microenvironment interplay is slowly leading to more effective therapies for patients with prostate cancer bone metastases.
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Affiliation(s)
- Jung-Kang Jin
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX
| | - Farshid Dayyani
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Gary E. Gallick
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
- The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, TX
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