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He J, Cao Y, Zhu Q, Wang X, Cheng G, Wang Q, He R, Lu H, Weng Y, Mao G, Bao Y, Wang J, Liu X, Han F, Shi P, Shen XZ. Renal macrophages monitor and remove particles from urine to prevent tubule obstruction. Immunity 2024; 57:106-123.e7. [PMID: 38159573 DOI: 10.1016/j.immuni.2023.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 07/17/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
When the filtrate of the glomerulus flows through the renal tubular system, various microscopic sediment particles, including mineral crystals, are generated. Dislodging these particles is critical to ensuring the free flow of filtrate, whereas failure to remove them will result in kidney stone formation and obstruction. However, the underlying mechanism for the clearance is unclear. Here, using high-resolution microscopy, we found that the juxtatubular macrophages in the renal medulla constitutively formed transepithelial protrusions and "sampled" urine contents. They efficiently sequestered and phagocytosed intraluminal sediment particles and occasionally transmigrated to the tubule lumen to escort the excretion of urine particles. Mice with decreased renal macrophage numbers were prone to developing various intratubular sediments, including kidney stones. Mechanistically, the transepithelial behaviors of medulla macrophages required integrin β1-mediated ligation to the tubular epithelium. These findings indicate that medulla macrophages sample urine content and remove intratubular particles to keep the tubular system unobstructed.
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Affiliation(s)
- Jian He
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yangyang Cao
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qian Zhu
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinge Wang
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Guo Cheng
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qiang Wang
- Department of Laboratory Medicine, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Rukun He
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Haoran Lu
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Haining, Zhejiang, China
| | - Yuancheng Weng
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Genxiang Mao
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yizhong Bao
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing Wang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoli Liu
- Department of Neurology, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Fei Han
- Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Peng Shi
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| | - Xiao Z Shen
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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Qi R, Hou J, Yang Y, Yang Z, Wu L, Qiao T, Wang X, Song D. Integrin beta1 mediates the effect of telocytes on mesenchymal stem cell proliferation and migration in the treatment of acute lung injury. J Cell Mol Med 2023; 27:3980-3994. [PMID: 37855260 PMCID: PMC10746951 DOI: 10.1111/jcmm.17976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 08/22/2023] [Accepted: 09/16/2023] [Indexed: 10/20/2023] Open
Abstract
Co-transplantation of mesenchymal stem cells (MSCs) with telocytes (TCs) was found to have therapeutic effects, although the mechanism of intercellular communication is still unknown. Our current studies aim at exploring the potential molecular mechanisms of TCs interaction and communication with MSCs with a focus on integrin beta1 (ITGB1) in TCs. We found that the co-culture of MSCs with ITGB1-deleted TCs (TCITGB1-ko ) changed the proliferation, differentiation and growth dynamics ability of MSC in responses to LPS or PI3K inhibitor. Changes of MSC proliferation and apoptosis were accompanied with the dysregulation of cytokine mRNA expression in MSCs co-cultured with TCITGB1-ko during the exposure of PI3Kα/δ/β inhibitor, of which IL-1β, IL-6 and TNF-α increased, while IFN-γ, IL-4 and IL-10 decreased. The responses of PI3K p85, PI3K p110 and pAKT of MSCs co-cultured with TCITGB1-ko to LPS or PI3K inhibitor were opposite to those with ITGB1-presented TCs. The intraperitoneal injection of TCITGB1-ko , TCvector or MSCs alone, as well as the combination of MSCs with TCITGB1-ko or TCvector exhibited therapeutic effects on LPS-induced acute lung injury. Thus, our data indicate that telocyte ITGB1 contributes to the interaction and intercellular communication between MSCs and TCs, responsible for influencing other cell phenomes and functions.
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Affiliation(s)
- Ruixue Qi
- Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan HospitalFudan University Shanghai Medical SchoolShanghaiChina
| | - Jiayun Hou
- Zhongshan Hospital, Department of Pulmonary and Critical Care Medicine, Institute of Clinical ScienceFudan University Shanghai Medical SchoolShanghaiChina
- Shanghai Engineering Research Center of AI Technology for Cardiopulmonary DiseasesShanghaiChina
- Shanghai Institute of Clinical BioinformaticsShanghai Key Laboratory of Lung Inflammation and InjuryShanghaiChina
- Department of Pulmonary MedicineShanghai Xuhui Central Hospital, Fudan UniversityShanghaiChina
| | - Ying Yang
- Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan HospitalFudan University Shanghai Medical SchoolShanghaiChina
| | - Zhicheng Yang
- Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan HospitalFudan University Shanghai Medical SchoolShanghaiChina
| | - Lihong Wu
- Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan HospitalFudan University Shanghai Medical SchoolShanghaiChina
| | - Tiankui Qiao
- Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan HospitalFudan University Shanghai Medical SchoolShanghaiChina
| | - Xiangdong Wang
- Jinshan Hospital Center for Tumor Diagnosis & Therapy, Jinshan HospitalFudan University Shanghai Medical SchoolShanghaiChina
- Zhongshan Hospital, Department of Pulmonary and Critical Care Medicine, Institute of Clinical ScienceFudan University Shanghai Medical SchoolShanghaiChina
- Shanghai Engineering Research Center of AI Technology for Cardiopulmonary DiseasesShanghaiChina
- Shanghai Institute of Clinical BioinformaticsShanghai Key Laboratory of Lung Inflammation and InjuryShanghaiChina
- Department of Pulmonary MedicineShanghai Xuhui Central Hospital, Fudan UniversityShanghaiChina
| | - Dongli Song
- Zhongshan Hospital, Department of Pulmonary and Critical Care Medicine, Institute of Clinical ScienceFudan University Shanghai Medical SchoolShanghaiChina
- Shanghai Engineering Research Center of AI Technology for Cardiopulmonary DiseasesShanghaiChina
- Shanghai Institute of Clinical BioinformaticsShanghai Key Laboratory of Lung Inflammation and InjuryShanghaiChina
- Department of Pulmonary MedicineShanghai Xuhui Central Hospital, Fudan UniversityShanghaiChina
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3
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Mimouni NEH, Ialy-Radio C, Denizot AL, Lagoutte I, Frolikova M, Komrskova K, Barbaux S, Ziyyat A. Fertilization, but Not Post-Implantation Development, Can Occur in the Absence of Sperm and Oocyte Beta1 Integrin in Mice. Int J Mol Sci 2022; 23. [PMID: 36430291 DOI: 10.3390/ijms232213812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
Fertilization is a complex process that requires successive stages and culminates in the adhesion/fusion of gamete membranes. If the question of the involvement of oocyte integrins has been swept away by deletion experiments, that of the involvement of sperm integrins remains to be further characterized. In the present study, we addressed the question of the feasibility of sperm-oocyte adhesion/fusion and early implantation in the absence of sperm β1 integrin. Males and females with β1 integrin-depleted sperm and oocytes were mated, and fertilization outcome was monitored by a gestational ultrasound analysis. Results suggest that although the sperm β1 integrin participates in gamete adhesion/fusion, it is dispensable for fertilization in mice. However, sperm- and/or oocyte-originated integrin β1 is essential for post-implantation development. Redundancy phenomena could be at the origin of a compensatory expression or alternative dimerization pattern.
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Abstract
Schizophrenia is one of the most severe chronic psychiatric disorders, which lacks of objective and effective diagnosis and observation indicators.In this work, the serum miRNA profiles of schizophrenic patients were analyzed. Targets of abnormal miRNAs, and their regulatory mechanisms were studied. A miRNA array was used to analyze the serum from 3 schizophrenic patients without treatment, 3 clinically cured patients and 3 healthy controls. The findings from the array were confirmed by real-time PCR in a larger cohort, including 59 patients and 60 healthy controls. The candidate miRNAs were analyzed using bioinformatics tools. Their potential targets were studied through in vitro cellular experiments.MiR-320a-3p and miR-320b were found to be down-regulated in patients compared with cured patients and controls in the miRNA array, which was also confirmed by real-time PCR in the larger cohort. Integrin β1 (ITG β1) was found to be one of the targets of miR-320a-3p. An enzyme-linked immune sorbent assay demonstrated that the ITG β1 concentration increased significantly in the patients' serum, and the in vitro study confirmed that miR-320a-3p targeted the 3' UTR of ITG β1 mRNA and reduced its expression.Our results demonstrated that the regulatory effect of miR-320a-3p on its target ITG β1 might play an important role in schizophrenia pathogenesis, which could be a potential pathway for schizophrenia diagnosis and therapy.
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Iervolino A, De La Motte LR, Petrillo F, Prosperi F, Alvino FM, Schiano G, Perna AF, Di Matteo D, De Felice M, Capasso G, Trepiccione F. Corrigendum: Integrin Beta 1 Is Crucial for Urinary Concentrating Ability and Renal Medulla Architecture in Adult Mice. Front Physiol 2018; 9:1676. [PMID: 30546318 PMCID: PMC6282656 DOI: 10.3389/fphys.2018.01676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 11/08/2018] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article DOI: 10.3389/fphys.2018.01273.].
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Affiliation(s)
- Anna Iervolino
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy
| | - Luigi R De La Motte
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Federica Petrillo
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Federica Prosperi
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy
| | | | - Guglielmo Schiano
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy
| | - Alessandra F Perna
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Danilo Di Matteo
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Mario De Felice
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Giovambattista Capasso
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesco Trepiccione
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
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Iervolino A, De La Motte LR, Petrillo F, Prosperi F, Alvino FM, Schiano G, Perna AF, Di Matteo D, De Felice M, Capasso G, Trepiccione F. Integrin Beta 1 Is Crucial for Urinary Concentrating Ability and Renal Medulla Architecture in Adult Mice. Front Physiol 2018; 9:1273. [PMID: 30271355 PMCID: PMC6147158 DOI: 10.3389/fphys.2018.01273] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/21/2018] [Indexed: 11/13/2022] Open
Abstract
Integrins are heterodimers anchoring cells to the surrounding extracellular matrix (ECM), an active and complex process mediating a series of inside-out and outside-in stimuli regulating cellular turn-over, tissue growth and architecture. Itgb1 is the main subunit of the renal integrins and it is critical for renal development. This study aims to investigate the role of Itgb1 in the adult renal epithelial cells by knocking down Itgb1 in PAX8 expressing cells. Itgb1-Pax8 cKO mice develop a progressively worsening proteinuria and renal abnormalities leading to severe renal failure and hypertension. This phenotype is also associated with severe dysfunction of distal nephron and polyuria. To further investigate whether distal nephron involvement was primarily related to Itgb1 suppression or secondary to renal failure, an Itgb1-AQP2 cKO mouse model was generated. These mice lack Itgb1 expression in AQP2 expressing cells. They do not show any developmental alteration, but 1 month old mice are resistant to dDAVP administration and finally, at 2 months of age, they develop overt polyuria. This phenotype is due to primary collecting duct (CD) cells anoikis. The entire architecture of the outer medulla is altered, with loss of the typical organization pattern of vascular and tubular bundles alternation. Indeed, even though not primarily affected by genetic ablation, the TAL is secondarily affected in this model. It is sufficient to suppress Itgb1 expression in the CD in order to stimulate proliferation and then disappearance of neighboring TAL cells. This study shows that cell to cell interaction through the ECM is critical for architecture and function maintenance of the outer medulla and that Itgb1 is crucial for this process.
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Affiliation(s)
- Anna Iervolino
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy
| | - Luigi R De La Motte
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Federica Petrillo
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Federica Prosperi
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | | | - Guglielmo Schiano
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy
| | - Alessandra F Perna
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Danilo Di Matteo
- Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Mario De Felice
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy
| | - Giovambattista Capasso
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Francesco Trepiccione
- Biogem Scarl, Istituto di Ricerche Gaetano Salvatore, Ariano Irpino, Italy.,Department of Translational Medical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
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Morohoshi K, Mochinaga R, Watanabe T, Nakajima R, Harigaya T. 16 kDa vasoinhibin binds to integrin alpha5 beta1 on endothelial cells to induce apoptosis. Endocr Connect 2018; 7:630-636. [PMID: 29622663 PMCID: PMC5919937 DOI: 10.1530/ec-18-0116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/05/2018] [Indexed: 11/08/2022]
Abstract
Many functions of vasoinhibins have been reported, but its receptor has not been clarified yet. Vasoinhibins, 11-18 kDa N-terminal fragments of prolactin, have anti-angiogenic activity and act on endothelial cells to induce apoptosis and to inhibit migration and proliferation, which are opposite to the effects of prolactin. Although vasoinhibins bind to the prolactin receptor, its binding activity is very weak compared to prolactin. Therefore, in this study, we evaluated the binding activity between 16 kDa vasoinhibin and integrin beta1, alpha5 beta1, alpha1 beta1 and alphaV beta3 to identify a specific receptor for vasoinhibins. Moreover, we examined whether 16 kDa vasoinhibin induced apoptosis through integrin beta1 and alpha5 beta1 in endothelial cells. In this study, binding assays and co-immunoprecipitation experiments demonstrated that 16 kDa vasoinhibin could bind strongly to integrin beta1 and alpha5 beta1. Moreover, neutralizing with integrin beta1 and alpha5 beta1 antibody could inhibit 16 kDa vasoinhibin-induced apoptosis in endothelial cells. These findings suggest that vasoinhibins can act on endothelial cells through integrin alpha5 beta1 to induce apoptosis.
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Affiliation(s)
- Kazunori Morohoshi
- Department of Life SciencesLaboratory of Functional Anatomy, Faculty of Agriculture, Meiji University, Kawasaki, Japan
| | - Ryo Mochinaga
- Department of Life SciencesLaboratory of Functional Anatomy, Faculty of Agriculture, Meiji University, Kawasaki, Japan
| | - Tsukasa Watanabe
- Department of Life SciencesLaboratory of Functional Anatomy, Faculty of Agriculture, Meiji University, Kawasaki, Japan
| | - Ryojun Nakajima
- Department of Life SciencesLaboratory of Functional Anatomy, Faculty of Agriculture, Meiji University, Kawasaki, Japan
| | - Toshio Harigaya
- Department of Life SciencesLaboratory of Functional Anatomy, Faculty of Agriculture, Meiji University, Kawasaki, Japan
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Nass N, Dittmer A, Hellwig V, Lange T, Beyer JM, Leyh B, Ignatov A, Weiβenborn C, Kirkegaard T, Lykkesfeldt AE, Kalinski T, Dittmer J. Expression of transmembrane protein 26 (TMEM26) in breast cancer and its association with drug response. Oncotarget 2016; 7:38408-38426. [PMID: 27224909 PMCID: PMC5122400 DOI: 10.18632/oncotarget.9493] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 04/29/2016] [Indexed: 12/18/2022] Open
Abstract
We have previously shown that stromal cells desensitize breast cancer cells to the anti-estrogen fulvestrant and, along with it, downregulate the expression of TMEM26 (transmembrane protein 26). In an effort to study the function and regulation of TMEM26 in breast cancer cells, we found that breast cancer cells express non-glycosylated and N-glycosylated isoforms of the TMEM26 protein and demonstrate that N-glycosylation is important for its retention at the plasma membrane. Fulvestrant induced significant changes in expression and in the N-glycosylation status of TMEM26. In primary breast cancer, TMEM26 protein expression was higher in ERα (estrogen receptor α)/PR (progesterone receptor)-positive cancers. These data suggest that ERα is a major regulator of TMEM26. Significant changes in TMEM26 expression and N-glycosylation were also found, when MCF-7 and T47D cells acquired fulvestrant resistance. Furthermore, patients who received aromatase inhibitor treatment tend to have a higher risk of recurrence when tumoral TMEM26 protein expression is low. In addition, TMEM26 negatively regulates the expression of integrin β1, an important factor involved in endocrine resistance. Data obtained by spheroid formation assays confirmed that TMEM26 and integrin β1 can have opposite effects in breast cancer cells. These data are consistent with the hypothesis that, in ERα-positive breast cancer, TMEM26 may function as a tumor suppressor by impeding the acquisition of endocrine resistance. In contrast, in ERα-negative breast cancer, particularly triple-negative cancer, high TMEM26 expression was found to be associated with a higher risk of recurrence. This implies that TMEM26 has different functions in ERα-positive and -negative breast cancer.
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Affiliation(s)
- Norbert Nass
- Otto-von-Guericke-Universität Magdeburg, Institut für Pathologie, Magdeburg, Germany
| | - Angela Dittmer
- Klinik für Gynäkologie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany
| | - Vicky Hellwig
- Klinik für Gynäkologie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany
| | - Theresia Lange
- Klinik für Gynäkologie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany
| | - Johanna Mirjam Beyer
- Klinik für Gynäkologie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany
| | - Benjamin Leyh
- Klinik für Gynäkologie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany
| | - Atanas Ignatov
- Otto-von-Guericke-Universität Magdeburg, Universitätsfrauenklinik, Magdeburg, Germany
| | - Christine Weiβenborn
- Otto-von-Guericke-Universität Magdeburg, Universitätsfrauenklinik, Magdeburg, Germany
| | - Tove Kirkegaard
- Breast Cancer Group, Cell Death and Metabolism, Danish Cancer Society Research Center, Copenhagen, Denmark.,Present address: Department of Surgery, Koege Hospital, Koege, Denmark
| | - Anne E Lykkesfeldt
- Breast Cancer Group, Cell Death and Metabolism, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Thomas Kalinski
- Otto-von-Guericke-Universität Magdeburg, Institut für Pathologie, Magdeburg, Germany
| | - Jürgen Dittmer
- Klinik für Gynäkologie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany
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9
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Kocatürk B, Tieken C, Vreeken D, Ünlü B, Engels CC, de Kruijf EM, Kuppen PJ, Reitsma PH, Bogdanov VY, Versteeg HH. Alternatively spliced tissue factor synergizes with the estrogen receptor pathway in promoting breast cancer progression. J Thromb Haemost 2015; 13:1683-93. [PMID: 26179105 PMCID: PMC4560996 DOI: 10.1111/jth.13049] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 06/18/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND Procoagulant full-length tissue factor (flTF) and its minimally coagulant alternatively spliced isoform (asTF), promote breast cancer (BrCa) progression via different mechanisms. We previously showed that flTF and asTF are expressed by BrCa cells, resulting in autoregulation in a cancer milieu. BrCa cells often express hormone receptors such as the estrogen receptor (ER), leading to the formation of hormone-regulated cell populations. OBJECTIVE To investigate whether TF isoform-specific and ER-dependent pathways interact in BrCa. METHODS Tissue factor isoform-regulated gene sets were assessed using ingenuity pathway analysis. Tissues from a cohort of BrCa patients were divided into ER-positive and ER-negative groups. Associations between TF isoform levels and tumor characteristics were analyzed in these groups. BrCa cells expressing TF isoforms were assessed for proliferation, migration and in vivo growth in the presence or absence of estradiol. RESULTS Ingenuity pathway analysis pointed to similarities between ER- and TF-induced gene expression profiles. In BrCa tissue specimens, asTF expression was associated with grade and stage in ER-positive but not in ER-negative tumors. flTF was only associated with grade in ER-positive tumors. In MCF-7 cells, asTF accelerated proliferation in the presence of estradiol in a β1 integrin-dependent manner. No synergy between asTF and the ER pathway was observed in a migration assay. Estradiol accelerated the growth of asTF-expressing tumors but not control tumors in vivo in an orthotopic setting. CONCLUSION Tissue factor isoform and estrogen signaling share downstream targets in BrCa; the concomitant presence of asTF and estrogen signaling is required to promote BrCa cell proliferation.
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Affiliation(s)
- B Kocatürk
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - C Tieken
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - D Vreeken
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - B Ünlü
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - C C Engels
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - E M de Kruijf
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - P J Kuppen
- Department of Surgery, Leiden University Medical Center, Leiden, the Netherlands
| | - P H Reitsma
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - V Y Bogdanov
- Division of Hematology/Oncology, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - H H Versteeg
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
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10
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Abstract
The (c-)Myc oncoprotein and its cousins, the N-Myc and L-Myc proteins, show all hallmarks of transcriptional activator proteins: Myc carries a carboxy-terminal DNA binding domain, which mediates sequence-specific binding to DNA. At its amino-terminus, Myc carries a transcriptional regulatory domain that strongly activates transcription when fused to an ectopic DNA binding domain; moreover, the strength of activation of different members of the Myc family correlates with their ability to transform rodent cells. Furthermore, activation of conditional alleles of Myc, either tetracycline or estrogen inducible, upregulates expression of a large number of genes, both in tissue culture and in transgenic animals. Indeed, many of these genes have essential roles in cell proliferation, cell growth, and metabolism; two of them, odc, encoding ornithine decarboxylase, a rate-limiting enzyme of polyamine biosynthesis, and rpl24, encoding a constituent of the large ribosomal subunit, are haploinsufficient for Myc-induced lymphomagenesis but not for normal development, arguing very strongly that upregulation of both genes is critical for Myc-dependent tumor formation. Undoubtedly, therefore, Myc exerts part of its biological activities via transcriptional upregulation of a large number of target genes. One of the key issues in the field is whether there are additional biochemical activities of the Myc protein and, if so, whether and how they contribute to Myc biology. This review summarizes evidence demonstrating that Myc has the ability to repress transcription and that this may be an important function during oncogenic transformation.
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Affiliation(s)
- Barbara Herkert
- Theodor-Boveri-Institute, Biozentrum, University of Würzburg, Würzburg, Germany
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