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Zou Y, Xu L, Wang W, Zhu X, Lin J, Li H, Chen J, Xu W, Gao H, Wu X, Yin Z, Wang Q. Muscone restores anoikis sensitivity in TMZ-resistant glioblastoma cells by suppressing TOP2A via the EGFR/Integrin β1/FAK signaling pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155714. [PMID: 38723526 DOI: 10.1016/j.phymed.2024.155714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/15/2024] [Accepted: 05/04/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND Temozolomide (TMZ) resistance is the main obstacle faced by glioblastoma multiforme (GBM) treatment. Muscone, one of the primary active pharmacological ingredients of Shexiang (Moschus), can cross the blood-brain barrier (BBB) and is being investigated as an antineoplastic medication. However, muscone treatment for GBM has received little research, and its possible mechanisms are still unclear. PURPOSE This study aims to evaluate the effect and the potential molecular mechanism of muscone on TMZ-resistant GBM cells. METHODS The differentially expressed genes (DEGs) between TMZ-resistant GBM cells and TMZ-sensitive GBM cells were screened using GEO2R. By progressively raising the TMZ concentration, a relatively stable TMZ-resistant human GBM cell line was established. The drug-resistance traits of U251-TR cells were assessed via the CCK-8 assay and Western Blot analysis of MGMT and TOP2A expression. Cell viability, cell proliferation, cell migration ability, and drug synergism were detected by the CCK-8 assay, colony formation assay, wound healing assay, and drug interaction relationship test, respectively. Anoikis was quantified by Calcein-AM/EthD-1 staining, MTT assay, and flow cytometry. Measurements of cell cycle arrest, apoptosis, mitochondrial membrane potential (MMP), and reactive oxygen species (ROS) were performed using cell cycle staining, Annexin V-FITC/PI labeling, JC-1 assay, and ROS assay, respectively. DNA damage was measured by TUNEL assay, alkaline comet assay, and γ-H2AX foci assay. GEPIA was used to investigate the link between the anoikis marker (FAK)/drug resistance gene and critical proteins in the EGFR/Integrin β1 signaling pathway. Molecular docking was used to anticipate the probable targets of muscone. The intracellular co-localization and expression of EGFR and FAK were shown using immunofluorescence. The U251-TR cell line stably overexpressing EGFR was constructed using lentiviral transduction to assess the involvement of EGFR-related signaling in anoikis resistance. Western Blot was employed to detect the expression of migration-related proteins, cyclins, anoikis-related proteins, DNA damage/repair-related proteins, and associated pathway proteins. RESULTS DEGs analysis identified 97 deregulated chemotherapy-resistant genes and 3779 upregulated genes in TMZ-resistant GBM cells. Subsequent experiments verified TMZ resistance and the hyper-expression of DNA repair-related genes (TOP2A and MGMT) in continuously low-dose TMZ-induced U251-TR cells. Muscone exhibited dose-dependent inhibition of U251-TR cell migration and proliferation, and its co-administration with TMZ showed the potential for enhanced therapeutic efficacy. By downregulating FAK, muscone reduced anoikis resistance in anchorage-independent U251-TR cells. It also caused cell cycle arrest in the G2/M phase by upregulating p21 and downregulating CDK1, CDK2, and Cyclin E1. Muscone-induced anoikis was accompanied by mitochondrial membrane potential collapse, ROS production, an increase in the BAX/Bcl-2 ratio, as well as elevated levels of Cytochrome c (Cyt c), cleaved caspase-9, and cleaved caspase-3. These findings indicated that muscone might trigger mitochondrial-dependent anoikis via ROS generation. Moreover, significant DNA damage, DNA double-strand breaks (DSBs), the formation of γ-H2AX foci, and a reduction in TOP2A expression are also associated with muscone-induced anoikis. Overexpression of EGFR in U251-TR cells boosted the expression of Integrin β1, FAK, β-Catenin, and TOP2A, whereas muscone suppressed the expression levels of EGFR, Integrin β1, β-Catenin, FAK, and TOP2A. Muscone may influence the expression of the key DNA repair enzyme, TOP2A, by suppressing the EGFR/Integrin β1/FAK pathway. CONCLUSION We first demonstrated that muscone suppressed TOP2A expression through the EGFR/Integrin β1/FAK pathway, hence restoring anoikis sensitivity in TMZ-resistant GBM cells. These data suggest that muscone may be a promising co-therapeutic agent for enhancing GBM treatment, particularly in cases of TMZ-resistant GBM with elevated TOP2A expression.
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Affiliation(s)
- Yuheng Zou
- Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China; Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Lanyang Xu
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Wanyu Wang
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiao Zhu
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jiaqi Lin
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Huazhao Li
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Jiali Chen
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Wei Xu
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Haiqiong Gao
- Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xianghui Wu
- Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Zhixin Yin
- Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Qirui Wang
- Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China; Department of Molecular Biology, State Administration of Traditional Chinese Medicine of the People's Republic of China, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong 510515, China.
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Yan Z, Li S, Gong Z. Bisacurone gel ameliorated burn wounds in experimental rats via its anti-inflammatory, antioxidant, and angiogenic properties. Acta Cir Bras 2023; 38:e382423. [PMID: 37610964 PMCID: PMC10443232 DOI: 10.1590/acb382423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 05/26/2023] [Indexed: 08/25/2023] Open
Abstract
PURPOSE To investigate putative mechanism of wound healing for chitosan-based bisacurone gel against secondary burn wounds in rats. METHODS A second-degree burn wound with an open flame using mixed fuel (2 mL, 20 seconds) was induced in Sprague Dawley rats (male, 180-220 g, n = 15, each) followed by topical treatments with either vehicle control (white petroleum gel, 1%), silver sulfadiazine (1%) or bisacurone gel (2.5, 5, or 10%) for 20 days. Wound contraction rate and paw withdrawal threshold were monitored on various days. Oxidative stress (superoxide dismutase, glutathione, malondialdehyde, and nitric oxide), pro-inflammatory cytokines (tumour necrosis factor-alpha, interleukins by enzyme-linked immunosorbent assay), growth factors (transforming growth factor-β, vascular endothelial growth factor C using real time polymerase chain reaction and Western blot assay) levels, and histology of wound skin were assessed at the end. RESULTS Bisacurone gel showed 98.72% drug release with a 420.90-442.70 cps viscosity. Bisacurone gel (5 and 10%) significantly (p < 0.05) improved wound contraction rate and paw withdrawal threshold. Bisacurone gel attenuated oxidative stress, pro-inflammatory cytokines, and water content. It also enhanced angiogenesis (hydroxyproline and growth factor) and granulation in wound tissue than vehicle control. CONCLUSIONS These findings suggested that bisacurone gel can be a potential candidate to treat burn wounds via its anti-inflammatory, antioxidant, and angiogenic properties.
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Affiliation(s)
- Zengqiang Yan
- Inner Mongolia Baogang Hospital – Department of Burns Surgery – Baotou, Inner Mongolia, China
| | - Shuyan Li
- Inner Mongolia Tongliao Mental Health Center – Department of Cardiology – Tongliao, Inner Mongolia, China
| | - Zhenzhong Gong
- Fifth Hospital of Harbin City – Department of Burns – Harbin, Heilongjiang Province, China
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Díaz-Flores L, Gutiérrez R, García MP, González-Gómez M, Díaz-Flores L, Carrasco JL, Madrid JF, Rodríguez Bello A. Comparison of the Behavior of Perivascular Cells (Pericytes and CD34+ Stromal Cell/Telocytes) in Sprouting and Intussusceptive Angiogenesis. Int J Mol Sci 2022; 23:ijms23169010. [PMID: 36012273 PMCID: PMC9409369 DOI: 10.3390/ijms23169010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
Perivascular cells in the pericytic microvasculature, pericytes and CD34+ stromal cells/telocytes (CD34+SCs/TCs), have an important role in angiogenesis. We compare the behavior of these cells depending on whether the growth of endothelial cells (ECs) from the pre-existing microvasculature is toward the interstitium with vascular bud and neovessel formation (sprouting angiogenesis) or toward the vascular lumen with intravascular pillar development and vessel division (intussusceptive angiogenesis). Detachment from the vascular wall, mobilization, proliferation, recruitment, and differentiation of pericytes and CD34+SCs/TCs, as well as associated changes in vessel permeability and functionality, and modifications of the extracellular matrix are more intense, longer lasting over time, and with a greater energy cost in sprouting angiogenesis than in intussusceptive angiogenesis, in which some of the aforementioned events do not occur or are compensated for by others (e.g., sparse EC and pericyte proliferation by cell elongation and thinning). The governing mechanisms involve cell-cell contacts (e.g., peg-and-socket junctions between pericytes and ECs), multiple autocrine and paracrine signaling molecules and pathways (e.g., vascular endothelial growth factor, platelet-derived growth factor, angiopoietins, transforming growth factor B, ephrins, semaphorins, and metalloproteinases), and other factors (e.g., hypoxia, vascular patency, and blood flow). Pericytes participate in vessel development, stabilization, maturation and regression in sprouting angiogenesis, and in interstitial tissue structure formation of the pillar core in intussusceptive angiogenesis. In sprouting angiogenesis, proliferating perivascular CD34+SCs/TCs are an important source of stromal cells during repair through granulation tissue formation and of cancer-associated fibroblasts (CAFs) in tumors. Conversely, CD34+SCs/TCs have less participation as precursor cells in intussusceptive angiogenesis. The dysfunction of these mechanisms is involved in several diseases, including neoplasms, with therapeutic implications.
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Affiliation(s)
- Lucio Díaz-Flores
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
- Correspondence: ; Tel.: +34-922-319317; Fax: +34-922-319279
| | - Ricardo Gutiérrez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
| | - Maria Pino García
- Department of Pathology, Eurofins Megalab–Hospiten Hospitals, 38100 Tenerife, Spain
| | - Miriam González-Gómez
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
- Instituto de Tecnologías Biomédicas de Canarias, University of La Laguna, 38071 Tenerife, Spain
| | - Lucio Díaz-Flores
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
| | - Jose Luis Carrasco
- Department of Basic Medical Sciences, Faculty of Medicine, University of La Laguna, 38071 Tenerife, Spain
| | - Juan Francisco Madrid
- Department of Cell Biology and Histology, School of Medicine, Campus of International Excellence “Campus Mare Nostrum”, IMIB-Arrixaca, University of Murcia, 30120 Murcia, Spain
| | - Aixa Rodríguez Bello
- Department of Bioquímica, Microbiología, Biología Celular y Genética, University of La Laguna, 38071 Tenerife, Spain
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Chen Z, Wei X, Dong S, Han F, He R, Zhou W. Challenges and Opportunities Associated With Platelets in Pancreatic Cancer. Front Oncol 2022; 12:850485. [PMID: 35494001 PMCID: PMC9039220 DOI: 10.3389/fonc.2022.850485] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 03/15/2022] [Indexed: 01/02/2023] Open
Abstract
Pancreatic cancer is one of the most common malignant tumors in the digestive system with a poor prognosis. Accordingly, better understanding of the molecular mechanisms and innovative therapies are warranted to improve the prognosis of this patient population. In addition to playing a crucial role in coagulation, platelets reportedly contribute to the growth, invasion and metastasis of various tumors, including pancreatic cancer. This narrative review brings together currently available evidence on the impact of platelets on pancreatic cancer, including the platelet-related molecular mechanisms of cancer promotion, pancreatic cancer fibrosis, immune evasion, drug resistance mechanisms, thrombosis, targeted platelet therapy, combined radiotherapy and chemotherapy treatment, platelet combined with nanotechnology treatment and potential applications of pancreatic cancer organoids. A refined understanding of the role of platelets in pancreatic cancer provides the foothold for identifying new therapeutic targets.
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Affiliation(s)
- Zhou Chen
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xiaodong Wei
- Emergency Department, Gansu Provincial Hospital, Lanzhou, China
| | - Shi Dong
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Fangfang Han
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Ru He
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China
| | - Wence Zhou
- The First Clinical Medical College, Lanzhou University, Lanzhou, China.,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, China
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Rustagi Y, Abouhashem AS, Verma P, Verma SS, Hernandez E, Liu S, Kumar M, Guda PR, Srivastava R, Mohanty SK, Kacar S, Mahajan S, Wanczyk KE, Khanna S, Murphy MP, Gordillo GM, Roy S, Wan J, Sen CK, Singh K. Endothelial Phospholipase Cγ2 Improves Outcomes of Diabetic Ischemic Limb Rescue Following VEGF Therapy. Diabetes 2022; 71:1149-1165. [PMID: 35192691 PMCID: PMC9044136 DOI: 10.2337/db21-0830] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 02/15/2022] [Indexed: 11/13/2022]
Abstract
Therapeutic vascular endothelial growth factor (VEGF) replenishment has met with limited success for the management of critical limb-threatening ischemia. To improve outcomes of VEGF therapy, we applied single-cell RNA sequencing (scRNA-seq) technology to study the endothelial cells of the human diabetic skin. Single-cell suspensions were generated from the human skin followed by cDNA preparation using the Chromium Next GEM Single-cell 3' Kit v3.1. Using appropriate quality control measures, 36,487 cells were chosen for downstream analysis. scRNA-seq studies identified that although VEGF signaling was not significantly altered in diabetic versus nondiabetic skin, phospholipase Cγ2 (PLCγ2) was downregulated. The significance of PLCγ2 in VEGF-mediated increase in endothelial cell metabolism and function was assessed in cultured human microvascular endothelial cells. In these cells, VEGF enhanced mitochondrial function, as indicated by elevation in oxygen consumption rate and extracellular acidification rate. The VEGF-dependent increase in cell metabolism was blunted in response to PLCγ2 inhibition. Follow-up rescue studies therefore focused on understanding the significance of VEGF therapy in presence or absence of endothelial PLCγ2 in type 1 (streptozotocin-injected) and type 2 (db/db) diabetic ischemic tissue. Nonviral topical tissue nanotransfection technology (TNT) delivery of CDH5 promoter-driven PLCγ2 open reading frame promoted the rescue of hindlimb ischemia in diabetic mice. Improvement of blood flow was also associated with higher abundance of VWF+/CD31+ and VWF+/SMA+ immunohistochemical staining. TNT-based gene delivery was not associated with tissue edema, a commonly noted complication associated with proangiogenic gene therapies. Taken together, our study demonstrates that TNT-mediated delivery of endothelial PLCγ2, as part of combination gene therapy, is effective in diabetic ischemic limb rescue.
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Affiliation(s)
- Yashika Rustagi
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Ahmed S. Abouhashem
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
- Sharkia Clinical Research Department, Ministry of Health and Population, Cairo, Egypt
| | - Priyanka Verma
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Sumit S. Verma
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Edward Hernandez
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Sheng Liu
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN
| | - Manishekhar Kumar
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Poornachander R. Guda
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Rajneesh Srivastava
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Sujit K. Mohanty
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Sedat Kacar
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Sanskruti Mahajan
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Kristen E. Wanczyk
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Savita Khanna
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Michael P. Murphy
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Gayle M. Gordillo
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Sashwati Roy
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Jun Wan
- Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN
| | - Chandan K. Sen
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
| | - Kanhaiya Singh
- Indiana Center for Regenerative Medicine and Engineering, Indiana University Health Comprehensive Wound Center, Indiana University School of Medicine, Indianapolis, IN
- Corresponding author: Kanhaiya Singh,
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Kamothi DJ, Kant V, Jangir BL, Joshi VG, Ahuja M, Kumar V. Novel preparation of bilirubin-encapsulated pluronic F-127 nanoparticles as a potential biomaterial for wound healing. Eur J Pharmacol 2022; 919:174809. [DOI: 10.1016/j.ejphar.2022.174809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/27/2021] [Accepted: 02/08/2022] [Indexed: 01/05/2023]
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Yang T, Xiao H, Liu X, Wang Z, Zhang Q, Wei N, Guo X. Vascular Normalization: A New Window Opened for Cancer Therapies. Front Oncol 2021; 11:719836. [PMID: 34476218 PMCID: PMC8406857 DOI: 10.3389/fonc.2021.719836] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/23/2021] [Indexed: 12/17/2022] Open
Abstract
Preclinical and clinical antiangiogenic approaches, with multiple side effects such as resistance, have not been proved to be very successful in treating tumor blood vessels which are important targets for tumor therapy. Meanwhile, restoring aberrant tumor blood vessels, known as tumor vascular normalization, has been shown not only capable of reducing tumor invasion and metastasis but also of enhancing the effectiveness of chemotherapy, radiation therapy, and immunotherapy. In addition to the introduction of such methods of promoting tumor vascular normalization such as maintaining the balance between proangiogenic and antiangiogenic factors and targeting endothelial cell metabolism, microRNAs, and the extracellular matrix, the latest molecular mechanisms and the potential connections between them were primarily explored. In particular, the immunotherapy-induced normalization of blood vessels further promotes infiltration of immune effector cells, which in turn improves immunotherapy, thus forming an enhanced loop. Thus, immunotherapy in combination with antiangiogenic agents is recommended. Finally, we introduce the imaging technologies and serum markers, which can be used to determine the window for tumor vascular normalization.
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Affiliation(s)
- Ting Yang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongqi Xiao
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoxia Liu
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhihui Wang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qingbai Zhang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Nianjin Wei
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinggang Guo
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
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Stanzani E, Pedrosa L, Bourmeau G, Anezo O, Noguera-Castells A, Esteve-Codina A, Passoni L, Matteoli M, de la Iglesia N, Seano G, Martínez-Soler F, Tortosa A. Dual Role of Integrin Alpha-6 in Glioblastoma: Supporting Stemness in Proneural Stem-Like Cells While Inducing Radioresistance in Mesenchymal Stem-Like Cells. Cancers (Basel) 2021; 13:cancers13123055. [PMID: 34205341 PMCID: PMC8235627 DOI: 10.3390/cancers13123055] [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: 04/19/2021] [Revised: 06/10/2021] [Accepted: 06/12/2021] [Indexed: 11/23/2022] Open
Abstract
Simple Summary Glioblastoma stem-like cells (GSCs) are responsible for most of the malignant characteristics of glioblastoma, including therapeutic resistance, tumour recurrence, and tumour cellular heterogeneity. Therefore, increased understanding of the mechanisms regulating GSCs aggressiveness may help to improve patients’ outcomes. Here, we investigated the role of integrin a6 in controlling stemness and resistance to radiotherapy across proneural and mesenchymal molecular subtypes. We observed that integrin a6 had a clear role in stemness maintenance in proneural but not in mesenchymal GSCs. In addition, we proved a crucial role of integrin a6 in supporting mesenchymal GSCs resistance to ionizing radiation. Finally, we highlighted that integrin a6 may control different stem-associated features in GSCs, depending on the molecular subtype. The inhibition of integrin a6 limits stem-like malignant characteristics in both GSCs subtypes and thus may potentially control tumour relapse following conventional treatment. Abstract Therapeutic resistance after multimodal therapy is the most relevant cause of glioblastoma (GBM) recurrence. Extensive cellular heterogeneity, mainly driven by the presence of GBM stem-like cells (GSCs), strongly correlates with patients’ prognosis and limited response to therapies. Defining the mechanisms that drive stemness and control responsiveness to therapy in a GSC-specific manner is therefore essential. Here we investigated the role of integrin a6 (ITGA6) in controlling stemness and resistance to radiotherapy in proneural and mesenchymal GSCs subtypes. Using cell sorting, gene silencing, RNA-Seq, and in vitro assays, we verified that ITGA6 expression seems crucial for proliferation and stemness of proneural GSCs, while it appears not to be relevant in mesenchymal GSCs under basal conditions. However, when challenged with a fractionated protocol of radiation therapy, comparable to that used in the clinical setting, mesenchymal GSCs were dependent on integrin a6 for survival. Specifically, GSCs with reduced levels of ITGA6 displayed a clear reduction of DNA damage response and perturbation of cell cycle pathways. These data indicate that ITGA6 inhibition is able to overcome the radioresistance of mesenchymal GSCs, while it reduces proliferation and stemness in proneural GSCs. Therefore, integrin a6 controls crucial characteristics across GBM subtypes in GBM heterogeneous biology and thus may represent a promising target to improve patient outcomes.
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Affiliation(s)
- Elisabetta Stanzani
- Apoptosis and Cancer Unit, Department of Physiological Sciences, IDIBELL, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08907 L’Hospitalet del Llobregat, Spain;
- Correspondence: or (E.S.); (A.T.)
| | - Leire Pedrosa
- Haematology and Oncology Unit, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain; (L.P.); (N.d.l.I.)
| | - Guillaume Bourmeau
- Tumor Microenvironment Lab., Institut Curie, Université PSL, Université Paris-Saclay, CNRS UMR3347, Inserm U1021, Signalisation Radiobiologie et Cancer, 91400 Orsay, France; (G.B.); (O.A.); (G.S.)
| | - Oceane Anezo
- Tumor Microenvironment Lab., Institut Curie, Université PSL, Université Paris-Saclay, CNRS UMR3347, Inserm U1021, Signalisation Radiobiologie et Cancer, 91400 Orsay, France; (G.B.); (O.A.); (G.S.)
| | - Aleix Noguera-Castells
- Laboratory of Molecular and Translational Oncology, Departament of Medicine, CELLEX Biomedical Research Centre, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08036 Barcelona, Spain;
| | - Anna Esteve-Codina
- Functional Genomics, Centre for Genomic Regulation (CNAG-CRG), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain;
- Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain
| | - Lorena Passoni
- Laboratory of Pharmacology and Brain Pathology, IRCCS Humanitas Research Hospital, 20089 Rozzano, Italy;
| | - Michela Matteoli
- CNR Institute of Neuroscience, c/o Humanitas, 20089 Rozzano, Italy;
| | - Núria de la Iglesia
- Haematology and Oncology Unit, August Pi i Sunyer Biomedical Research Institute (IDIBAPS), 08036 Barcelona, Spain; (L.P.); (N.d.l.I.)
| | - Giorgio Seano
- Tumor Microenvironment Lab., Institut Curie, Université PSL, Université Paris-Saclay, CNRS UMR3347, Inserm U1021, Signalisation Radiobiologie et Cancer, 91400 Orsay, France; (G.B.); (O.A.); (G.S.)
| | - Fina Martínez-Soler
- Apoptosis and Cancer Unit, Department of Physiological Sciences, IDIBELL, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08907 L’Hospitalet del Llobregat, Spain;
- Department of Basic Nursing, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08907 L’Hospitalet del Llobregat, Spain
| | - Avelina Tortosa
- Apoptosis and Cancer Unit, Department of Physiological Sciences, IDIBELL, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08907 L’Hospitalet del Llobregat, Spain;
- Department of Basic Nursing, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08907 L’Hospitalet del Llobregat, Spain
- Correspondence: or (E.S.); (A.T.)
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Wu M, Chen Y, Feng L, Dai H, Fang S, Xu J. MiR-206 promotes extracellular matrix accumulation and relieves infantile hemangioma through targeted inhibition of DNMT3A. Cell Cycle 2021; 20:978-992. [PMID: 33945391 PMCID: PMC8172163 DOI: 10.1080/15384101.2021.1919820] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 10/21/2022] Open
Abstract
MiR-206 is abnormally expressed in infant hemangioma endothelial cells (HemECs), but the mechanism is not clear. We explored the intervention of miR-206 in HemECs in relation to extracellular matrix (ECM) metabolism. We selected 48 cases of infantile hemangioma (IH) from volunteer organizations. After the isolated and extracted HemECs were interfered with overexpressed or silenced miR-206, the effects of miR-206 on the proliferation, migration and invasion of HemECs were examined through basic cell function experiments. The expression differences of miR-206, DNA Methyltransferase 3A (DNMT3A) and ECM-related genes were analyzed as needed by qRT-PCR or Western blot. TargetScan and dual-luciferase experiments were applied to predict and confirm the binding relationship between miR-206 and DNMT3A. The correlation between miR-206 and DNMT3A was analyzed in IH tissues by Pearson correlation coefficient, and further confirmed in HemECs by conducting rescue experiments. A nude mouse model of xenograft tumor was constructed to verify the results of in vitro experiments. MiR-206, which was downregulated in proliferative hemangioma, suppressed the malignant development of HemECs by regulating ECM-related genes. As the target gene of miR-206, DNMT3A was high-expressed in IH tissues and was negatively correlated with miR-206. Overexpressed DNMT3A counteracted the inhibitory effect of miR-206 mimic on HemECs and its regulatory effect on ECM. The results of in vivo experiments were consistent with those from cell experiments. Thus, miR-206 could promote ECM accumulation through targeted inhibition of DNMT3A, further inhibiting the malignant development of HemECs and relieving IH.
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Affiliation(s)
- Minliang Wu
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yong Chen
- Department of Plastic Surgery, School of Medicine, Jinling Hospital, Nanjing University, Nanjing, Jiangsu, China
| | - Ling Feng
- Department of Pharmacy, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Haiying Dai
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Shuo Fang
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jianguo Xu
- Department of Plastic Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
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10
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Liu J, Riquelme MA, Li Z, Li Y, Tong Y, Quan Y, Pei C, Gu S, Jiang JX. Mechanosensitive collaboration between integrins and connexins allows nutrient and antioxidant transport into the lens. J Cell Biol 2021; 219:211530. [PMID: 33180092 PMCID: PMC7668387 DOI: 10.1083/jcb.202002154] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 09/01/2020] [Accepted: 09/28/2020] [Indexed: 01/08/2023] Open
Abstract
The delivery of glucose and antioxidants is vital to maintain homeostasis and lens transparency. Here, we report a new mechanism whereby mechanically activated connexin (Cx) hemichannels serve as a transport portal for delivering glucose and glutathione (GSH). Integrin α6β1 in outer cortical lens fiber activated by fluid flow shear stress (FFSS) induced opening of hemichannels. Inhibition of α6 activation prevented hemichannel opening as well as glucose and GSH uptake. The activation of integrin β1, a heterodimeric partner of α6 in the absence of FFSS, increased Cx50 hemichannel opening. Hemichannel activation by FFSS depended on the interaction of integrin α6 and Cx50 C-terminal domain. Moreover, hemichannels in nuclear fiber were unresponsive owing to Cx50 truncation. Taken together, these results show that mechanically activated α6β1 integrin in outer cortical lens fibers leads to opening of hemichannels, which transport glucose and GSH into cortical lens fibers. This study unveils a new transport mechanism that maintains metabolic and antioxidative function of the lens.
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Affiliation(s)
- Jie Liu
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX.,The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Manuel A Riquelme
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Zhen Li
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Yuting Li
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Yuxin Tong
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Yumeng Quan
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX.,The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Cheng Pei
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Sumin Gu
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX
| | - Jean X Jiang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX
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11
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Downregulation of ITGA6 confers to the invasion of multiple myeloma and promotes progression to plasma cell leukaemia. Br J Cancer 2021; 124:1843-1853. [PMID: 33785876 DOI: 10.1038/s41416-021-01362-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 02/08/2021] [Accepted: 03/11/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Secondary plasma cell leukaemia (sPCL) is an aggressive form of multiple myeloma (MM), but the mechanism underlying MM progresses into PCL remains unknown. METHODS Gene expression profiling of MM patients and PCL patients was analysed to identify the molecular differences between the two diseases. Cox survival regression and Kaplan-Meier analysis were performed to illustrate the impact of integrin subunit alpha 6 (ITGA6) on prognosis of MM. Invasion assays were performed to assess whether ITGA6 regulated the progression of MM to PCL. RESULTS Gene expression profiling analyses showed that cell metastasis pathways were enriched in PCL and ITGA6 was differentially expressed between PCL and MM. ITGA6 expression was an independent prognostic factor for event-free survival (EFS) and overall survival (OS) of MM patients. Moreover, the stratification ability of the International Staging System (ISS) of MM was improved when including ITGA6 expression. Functional studies uncovered that increased ITGA6 reduced the myeloma cell invasion. Additionally, low expression of ITGA6 resulted from epigenetic downregulating of its anti-sense non-coding RNA, ITGA6-AS1. CONCLUSION Our data reveal that ITGA6 gradually decreases during plasma cell dyscrasias progression and low expression of ITGA6 contributes to myeloma metastasis. Moreover, ITGA6 abundance might help develop MM prognostic stratification.
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12
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Singh S, Nguyen HC, Ehsan M, Michels DCR, Singh P, Qadura M, Singh KK. Pravastatin-induced changes in expression of long non-coding and coding RNAs in endothelial cells. Physiol Rep 2021; 9:e14661. [PMID: 33369888 PMCID: PMC7769171 DOI: 10.14814/phy2.14661] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 11/02/2020] [Accepted: 11/06/2020] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Atherosclerosis is the main cause of the cardiovascular disease (CVD). Elevated blood cholesterol and inflammation of the endothelium are two major mechanisms contributing to the establishment of atherosclerotic plaques. Statins, such as pravastatin, are blood-cholesterol lowering drugs commonly prescribed for patients with or at risk for CVDs. In addition to lowering blood cholesterols, statins have recently been shown to improve endothelial function in both hyper- and normocholesterolemic patients with atherosclerosis. To understand the molecular mechanisms underlying the endothelial function improvement by statins, we assessed the RNA profile of pravastatin-treated endothelial cells, particularly their mRNAs and long non-coding RNAs (lncRNAs). METHODS Human umbilical vein endothelial cells (HUVECs) treated with pravastatin (10 µM) for 24 hr were profiled for lncRNAs and mRNAs using the Arraystar Human lncRNA Expression Microarray V3.0. RESULTS Of the 30,584 different lncRNAs screened, 95 were significantly upregulated, while 86 were downregulated in HUVECs responding to pravastatin. LINC00281 and BC045663 were the most upregulated (~8-fold) and downregulated (~3.5-fold) lncRNAs, respectively. Of the 26,106 different mRNAs screened in the pravastatin-treated HUVEC samples, 190 were significantly upregulated, while 90 were downregulated. Assigning the differentially expressed genes by bioinformatics into functional groups revealed their molecular signaling involvement in the following physiological processes: osteoclast differentiation, Rap1 signaling pathway, hematopoiesis, immunity, and neurotrophin signaling pathway. CONCLUSIONS This is the first lncRNA and mRNA expression profiling of pravastatin-mediated changes in human endothelial cells. Our results reveal potential novel targets and mechanisms for pravastatin-mediated vascular protection in atherosclerosis.
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Affiliation(s)
- Shweta Singh
- Department of Chemical and Biochemical EngineeringSchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
| | - Hien C. Nguyen
- Department of Medical BiophysicsSchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
- Department of Anatomy and Cell BiologySchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
| | - Mehroz Ehsan
- Department of Medical BiophysicsSchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
- Schulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
| | - David C. R. Michels
- Department of Medical BiophysicsSchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
| | - Priyanka Singh
- Schulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
| | - Mohammad Qadura
- Vascular SurgeryKeenan Research Centre for Biomedical Science and Li Ka Shing Knowledge Institute of St. Michael’s HospitalTorontoONCanada
- Institute of Medical ScienceUniversity of TorontoTorontoONCanada
| | - Krishna K. Singh
- Department of Medical BiophysicsSchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
- Department of Anatomy and Cell BiologySchulich School of Medicine and DentistryUniversity of Western OntarioLondonONCanada
- Institute of Medical ScienceUniversity of TorontoTorontoONCanada
- Pharmacology and ToxicologyUniversity of TorontoTorontoONCanada
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13
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Hadden M, Mittal A, Samra J, Zreiqat H, Sahni S, Ramaswamy Y. Mechanically stressed cancer microenvironment: Role in pancreatic cancer progression. Biochim Biophys Acta Rev Cancer 2020; 1874:188418. [PMID: 32827581 DOI: 10.1016/j.bbcan.2020.188418] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/21/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal solid malignancies in the world due to its insensitivity to current therapies and its propensity to metastases from the primary tumor mass. This is largely attributed to its complex microenvironment composed of unique stromal cell populations and extracellular matrix (ECM). The recruitment and activation of these cell populations cause an increase in deposition of ECM components, which highly influences the behavior of malignant cells through disrupted forms of signaling. As PDAC progresses from premalignant lesion to invasive carcinoma, this dynamic landscape shields the mass from immune defenses and cytotoxic intervention. This microenvironment influences an invasive cell phenotype through altered forms of mechanical signaling, capable of enacting biochemical changes within cells through activated mechanotransduction pathways. The effects of altered mechanical cues on malignant cell mechanotransduction have long remained enigmatic, particularly in PDAC, whose microenvironment significantly changes over time. A more complete and thorough understanding of PDAC's physical surroundings (microenvironment), mechanosensing proteins, and mechanical properties may help in identifying novel mechanisms that influence disease progression, and thus, provide new potential therapeutic targets.
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Affiliation(s)
- Matthew Hadden
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, NSW 2006, Australia
| | - Anubhav Mittal
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Kolling Institute of Medical Research, University of Sydney, Australia; Australian Pancreatic Centre, St Leonards, Sydney, Australia
| | - Jaswinder Samra
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Kolling Institute of Medical Research, University of Sydney, Australia; Australian Pancreatic Centre, St Leonards, Sydney, Australia
| | - Hala Zreiqat
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative Bioengineering, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
| | - Sumit Sahni
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Kolling Institute of Medical Research, University of Sydney, Australia; Australian Pancreatic Centre, St Leonards, Sydney, Australia.
| | - Yogambha Ramaswamy
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.
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14
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Martin JD, Seano G, Jain RK. Normalizing Function of Tumor Vessels: Progress, Opportunities, and Challenges. Annu Rev Physiol 2020; 81:505-534. [PMID: 30742782 DOI: 10.1146/annurev-physiol-020518-114700] [Citation(s) in RCA: 279] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abnormal blood and lymphatic vessels create a hostile tumor microenvironment characterized by hypoxia, low pH, and elevated interstitial fluid pressure. These abnormalities fuel tumor progression, immunosuppression, and treatment resistance. In 2001, we proposed a novel hypothesis that the judicious use of antiangiogenesis agents-originally developed to starve tumors-could transiently normalize tumor vessels and improve the outcome of anticancer drugs administered during the window of normalization. In addition to providing preclinical and clinical evidence in support of this hypothesis, we also revealed the underlying molecular mechanisms. In parallel, we demonstrated that desmoplasia could also impair vascular function by compressing vessels, and that normalizing the extracellular matrix could improve vascular function and treatment outcome in both preclinical and clinical settings. Here, we summarize the progress made in understanding and applying the normalization concept to cancer and outline opportunities and challenges ahead to improve patient outcomes using various normalizing strategies.
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Affiliation(s)
- John D Martin
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Giorgio Seano
- Institut Curie Research Center, CNRS, Inserm, UMR3347, U1021, 91405 Orsay, France
| | - Rakesh K Jain
- Edwin L. Steele Laboratory, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114, USA;
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15
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Xu H, Pumiglia K, LaFlamme SE. Laminin-511 and α6 integrins regulate the expression of CXCR4 to promote endothelial morphogenesis. J Cell Sci 2020; 133:jcs246595. [PMID: 32409567 DOI: 10.1242/jcs.246595] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/11/2020] [Indexed: 12/25/2022] Open
Abstract
During angiogenesis, endothelial cells engage components of the extracellular matrix through integrin-mediated adhesion. Endothelial expression of laminin-411 and laminin-511 is known to promote vessel stability. However, little is known about the contribution of these laminins to endothelial morphogenesis. We used two organotypic cell culture angiogenesis assays, in conjunction with RNAi approaches, to demonstrate that depletion of either the α4 chain of laminin-411 (LAMA4) or the α5 chain of laminin-511 (LAMA5) from endothelial cells inhibits sprouting and tube formation. Depletion of α6 (ITGA6) integrins resulted in similar phenotypes. Gene expression analysis indicated that loss of either laminin-511 or α6 integrins inhibited the expression of CXCR4, a gene previously associated with angiogenic endothelial cells. Pharmacological or RNAi-dependent inhibition of CXCR4 suppressed endothelial sprouting and morphogenesis. Importantly, expression of recombinant CXCR4 rescued endothelial morphogenesis when α6 integrin expression was inhibited. Additionally, the depletion of α6 integrins from established tubes resulted in the loss of tube integrity and laminin-511. Taken together, our results indicate that α6 integrins and laminin-511 can promote endothelial morphogenesis by regulating the expression of CXCR4 and suggest that the α6-dependent deposition of laminin-511 protects the integrity of established endothelial tubes.
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Affiliation(s)
- Hao Xu
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany NY 12208, USA
| | - Kevin Pumiglia
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany NY 12208, USA
| | - Susan E LaFlamme
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany NY 12208, USA
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16
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Xu B, Shanmugalingam R, Chau K, Makris A, Hennessy A. Galectin-1-Related Modulation of Trophoblast Endothelial Interactions by Integrins α1 and β1. Reprod Sci 2020; 27:1097-1109. [PMID: 32253734 DOI: 10.1007/s43032-019-00046-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 04/15/2019] [Indexed: 10/24/2022]
Abstract
During normal trophoblast invasion, integrins α6β4 are downregulated, and α1β1 are upregulated in invasive cytotrophoblast cells. In preeclampsia both interstitial and endovascular invasion are shallow and cytotrophoblasts fail to upregulate α1β1 and downregulate α6β4. This study aims to investigate the role of integrins α1β1 and α6β4 on cellular pathways influencing trophoblast integration into endothelial cellular networks in vitro. Red fluorescent-labeled human uterine myometrial microvascular endothelial cells (UtMVECs) were seeded on Matrigel to form endothelial networks. Green fluorescent-labeled trophoblastic HTR-8/SVneo cells pre-incubated with 20 μg/ml of neutralizing antibodies (anti-α1, β1, α6, β4, α1 + β1, or α6 + β4) for 1 h were then co-cultured with endothelial networks with the neutralizing antibodies for 24 h. Fluorescent images were captured, and quantified utilizing Image J. Cells were retrieved to analyze mRNA expression of galectin-1, TIMP-1, and PAI-1 by quantitative PCR. MMP-2, MMP-9, free sFlt-1, and PlGF from conditioned media were measured by ELISA. The integration of trophoblast cells into endothelial cellular networks was inhibited by anti-β1(- 28 ± 3%, p < 0.0001), and increased by anti-α6(+ 19 ± 5%, p < 0.01). Galectin-1 mRNA expression was decreased by anti-α1(- 35 ± 7%, p < 0.001), anti-β1(- 23 ± 5%, p < 0.05), and anti-α1+β1(- 35 ± 5%, p < 0.001). The mRNA expression of TIMP-1 was inhibited by anti-α1(- 59 ± 9%, p < 0.01) and anti-β1(- 63 ± 7%, p < 0.001) while PAI-1 mRNA expression was increased by anti-α1 + β1(+ 285 ± 70%, p < 0.0001). In the conditioned medium, anti-α1 reduced MMP-2(-28 ± 1%, p < 0.001), MMP-9(-27 ± 8%, p < 0.01), and sFlt-1(-27 ± 5%, p < 0.001) production. Anti-β1 reduced MMP-2(- 15 ± 2%, p < 0.05) production. There were no changes in PlGF. Appropriate integrins α1β1 modulate trophoblast cell integration into endothelial cellular networks in vitro through invasive pathways including galectin-1, TIMP-1, PAI-1, MMP-2, and MMP-9 production.
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Affiliation(s)
- Bei Xu
- Vascular Immunology Research Laboratory, The Heart Research Institute, University of Sydney, 7 Eliza St., Newtown, NSW, 2042, Australia.
| | - Renuka Shanmugalingam
- Vascular Immunology Research Laboratory, The Heart Research Institute, University of Sydney, 7 Eliza St., Newtown, NSW, 2042, Australia.,School of Medicine, Western Sydney University, Sydney, Australia.,Renal Unit, Liverpool Hospital, Sydney, Australia
| | - Katrina Chau
- Vascular Immunology Research Laboratory, The Heart Research Institute, University of Sydney, 7 Eliza St., Newtown, NSW, 2042, Australia
| | - Angela Makris
- Vascular Immunology Research Laboratory, The Heart Research Institute, University of Sydney, 7 Eliza St., Newtown, NSW, 2042, Australia.,School of Medicine, Western Sydney University, Sydney, Australia.,Renal Unit, Liverpool Hospital, Sydney, Australia
| | - Annemarie Hennessy
- Vascular Immunology Research Laboratory, The Heart Research Institute, University of Sydney, 7 Eliza St., Newtown, NSW, 2042, Australia.,School of Medicine, Western Sydney University, Sydney, Australia
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17
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Engelbrecht E, Levesque MV, He L, Vanlandewijck M, Nitzsche A, Niazi H, Kuo A, Singh SA, Aikawa M, Holton K, Proia RL, Kono M, Pu WT, Camerer E, Betsholtz C, Hla T. Sphingosine 1-phosphate-regulated transcriptomes in heterogenous arterial and lymphatic endothelium of the aorta. eLife 2020; 9:52690. [PMID: 32091396 PMCID: PMC7054001 DOI: 10.7554/elife.52690] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 02/22/2020] [Indexed: 12/17/2022] Open
Abstract
Despite the medical importance of G protein-coupled receptors (GPCRs), in vivo cellular heterogeneity of GPCR signaling and downstream transcriptional responses are not understood. We report the comprehensive characterization of transcriptomes (bulk and single-cell) and chromatin domains regulated by sphingosine 1-phosphate receptor-1 (S1PR1) in adult mouse aortic endothelial cells. First, S1PR1 regulates NFκB and nuclear glucocorticoid receptor pathways to suppress inflammation-related mRNAs. Second, S1PR1 signaling in the heterogenous endothelial cell (EC) subtypes occurs at spatially-distinct areas of the aorta. For example, a transcriptomically distinct arterial EC population at vascular branch points (aEC1) exhibits ligand-independent S1PR1/ß-arrestin coupling. In contrast, circulatory S1P-dependent S1PR1/ß-arrestin coupling was observed in non-branch point aEC2 cells that exhibit an inflammatory gene expression signature. Moreover, S1P/S1PR1 signaling regulates the expression of lymphangiogenic and inflammation-related transcripts in an adventitial lymphatic EC (LEC) population in a ligand-dependent manner. These insights add resolution to existing concepts of endothelial heterogeneity, GPCR signaling and S1P biology.
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Affiliation(s)
- Eric Engelbrecht
- Vascular Biology Program, Boston Children's Hospital, Deapartment of Surgery, Harvard Medical School, Boston, United States
| | - Michel V Levesque
- Vascular Biology Program, Boston Children's Hospital, Deapartment of Surgery, Harvard Medical School, Boston, United States
| | - Liqun He
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.,Karolinska Institutet/AstraZeneca Integrated Cardio Metabolic Centre (KI/AZ ICMC), Karolinska Institutet, Huddinge, Sweden
| | - Michael Vanlandewijck
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.,Karolinska Institutet/AstraZeneca Integrated Cardio Metabolic Centre (KI/AZ ICMC), Karolinska Institutet, Huddinge, Sweden
| | - Anja Nitzsche
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Hira Niazi
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Andrew Kuo
- Vascular Biology Program, Boston Children's Hospital, Deapartment of Surgery, Harvard Medical School, Boston, United States
| | - Sasha A Singh
- Center for Interdisciplinary Cardiovascular Sciences, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, United States
| | - Masanori Aikawa
- Center for Interdisciplinary Cardiovascular Sciences, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, United States
| | - Kristina Holton
- Harvard Medical School Research Computing, Boston, United States
| | - Richard L Proia
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, United States
| | - Mari Kono
- Genetics of Development and Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, United States
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, United States.,Harvard Stem Cell Institute, Harvard University, Cambridge, United States
| | - Eric Camerer
- Université de Paris, INSERM U970, Paris Cardiovascular Research Center, Paris, France
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.,Karolinska Institutet/AstraZeneca Integrated Cardio Metabolic Centre (KI/AZ ICMC), Karolinska Institutet, Huddinge, Sweden
| | - Timothy Hla
- Vascular Biology Program, Boston Children's Hospital, Deapartment of Surgery, Harvard Medical School, Boston, United States
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18
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Chiaverina G, di Blasio L, Monica V, Accardo M, Palmiero M, Peracino B, Vara-Messler M, Puliafito A, Primo L. Dynamic Interplay between Pericytes and Endothelial Cells during Sprouting Angiogenesis. Cells 2019; 8:cells8091109. [PMID: 31546913 PMCID: PMC6770602 DOI: 10.3390/cells8091109] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/11/2019] [Accepted: 09/16/2019] [Indexed: 12/18/2022] Open
Abstract
Vascular physiology relies on the concerted dynamics of several cell types, including pericytes, endothelial, and vascular smooth muscle cells. The interactions between such cell types are inherently dynamic and are not easily described with static, fixed, experimental approaches. Pericytes are mural cells that support vascular development, remodeling, and homeostasis, and are involved in a number of pathological situations including cancer. The dynamic interplay between pericytes and endothelial cells is at the basis of vascular physiology and few experimental tools exist to properly describe and study it. Here we employ a previously developed ex vivo murine aortic explant to study the formation of new blood capillary-like structures close to physiological situation. We develop several mouse models to culture, identify, characterize, and follow simultaneously single endothelial cells and pericytes during angiogenesis. We employ microscopy and image analysis to dissect the interactions between cell types and the process of cellular recruitment on the newly forming vessel. We find that pericytes are recruited on the developing sprout by proliferation, migrate independently from endothelial cells, and can proliferate on the growing capillary. Our results help elucidating several relevant mechanisms of interactions between endothelial cells and pericytes.
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Affiliation(s)
- Giulia Chiaverina
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
| | - Laura di Blasio
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
| | - Valentina Monica
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
| | - Massimo Accardo
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
| | - Miriam Palmiero
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
| | - Barbara Peracino
- Department of Clinical and Biological Sciences, University of Turin, San Luigi Hospital, 10043 Orbassano, Italy.
| | - Marianela Vara-Messler
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
| | - Alberto Puliafito
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
| | - Luca Primo
- Candiolo Cancer Institute-FPO, IRCCS, Str. Prov. 142, km 3.95, 10060 Candiolo, Italy.
- Department of Oncology, University of Turin, 10060 Candiolo, Italy.
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19
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Feng GK, Ye JC, Zhang WG, Mei Y, Zhou C, Xiao YT, Li XL, Fan W, Wang F, Zeng MS. Integrin α6 targeted positron emission tomography imaging of hepatocellular carcinoma in mouse models. J Control Release 2019; 310:11-21. [PMID: 31400382 DOI: 10.1016/j.jconrel.2019.08.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 07/13/2019] [Accepted: 08/03/2019] [Indexed: 12/20/2022]
Abstract
Integrin α6 emerges to be a diagnostic biomarker for hepatocellular carcinoma (HCC). Here, we translated our previously identified integrin α6 targeted peptide RWY into a positron emission tomography (PET) tracer 18F-RWY for the detection of HCC lesions in following four HCC mouse models including subcutaneous, orthotopic, genetically engineered and chemical induced HCC mice. 18F-RWY produced high PET signals in liver tumor tissues that were reduced by blocking studies using nonradiolabeled RWY peptide. We compared the integrin α6 targeted PET tracer 18F-RWY with the integrin αvβ3-targeted PET tracer 18F-3PRGD2 and the clinical PET tracer 18F-FDG in chemical induced HCC mice. Among 12 HCC identified by enhanced magnetic resonance imaging (MRI) with hepatocellular specific gadoxetate disodium Gd-EOB-DTPA, the sensitivities of 18F-RWY, 18F-3PRGD2 and 18F-FDG were approximately 92%, 73% and 50% while the tumor-to-liver ratios were 4.36 ± 1.41, 1.97 ± 0.43 and 1.63 ± 0.23 respectively. Additionally, PET imaging with the integrin α6 targeted 18F-RWY enabled to visualize small HCC lesions with diameters approximately 0.2 cm that was hard to be distinguished from surround hepatic vascular by enhanced MRI with Gd-EOB-DTPA. These findings potentiate the use of integrin α6 targeted PET tracer 18F-RWY for the detection of HCC.
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Affiliation(s)
- Guo-Kai Feng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Jia-Cong Ye
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Wei-Guang Zhang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yan Mei
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Chao Zhou
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yi-Tai Xiao
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xin-Ling Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Wei Fan
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
| | - Fan Wang
- Medical Isotopes Research Center, Department of Radiation Medicine, School of Basic Medical Sciences, Peking University, Beijing 100191, China.
| | - Mu-Sheng Zeng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China.
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Feng G, Zhang M, Wang H, Cai J, Chen S, Wang Q, Gong J, Leong KW, Wang J, Zhang X, Zeng M. Identification of an Integrin α6‐Targeted Peptide for Nasopharyngeal Carcinoma‐Specific Nanotherapeutics. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Guo‐Kai Feng
- State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
| | - Meng‐Qing Zhang
- Rehabilitation Departmentthe Third Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong 510060 P. R. China
| | - Hong‐Xia Wang
- Department of Biomedical EngineeringColumbia University New York NY 10027 USA
| | - Jing Cai
- State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
| | - Shu‐Peng Chen
- State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
| | - Qian Wang
- State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
| | - Jing Gong
- Department of Biomedical EngineeringColumbia University New York NY 10027 USA
| | - Kam W. Leong
- Department of Biomedical EngineeringColumbia University New York NY 10027 USA
| | - Jun Wang
- Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei Anhui 230027 P. R. China
- National Engineering Research Center for Tissue Restoration and ReconstructionSouth China University of Technology Guangzhou Guangdong 510006 P. R. China
| | - Xing Zhang
- State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
| | - Mu‐Sheng Zeng
- State Key Laboratory of Oncology in South ChinaCollaborative Innovation Center for Cancer MedicineSun Yat‐sen University Cancer Center Guangzhou Guangdong 510060 P. R. China
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de Souza Junior DA, Santana C, Vieira GV, Oliver C, Jamur MC. Mast Cell Protease 7 Promotes Angiogenesis by Degradation of Integrin Subunits. Cells 2019; 8:cells8040349. [PMID: 31013764 PMCID: PMC6523500 DOI: 10.3390/cells8040349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/02/2019] [Accepted: 04/10/2019] [Indexed: 12/17/2022] Open
Abstract
Previous studies from our laboratory have shown that during angiogenesis in vitro, rmMCP-7 (recombinant mouse mast cell protease-7) stimulates endothelial cell spreading and induces their penetration into the matrix. The ability of rmMCP-7 to induce angiogenesis in vivo was assessed in the present study using a directed in vivo angiogenesis assay (DIVAA™). Vessel invasion of the angioreactor was observed in the presence of rmMCP-7 but was not seen in the control. Since integrins are involved in endothelial cell migration, the relationship between rmMCP-7 and integrins during angiogenesis was investigated. Incubation with rmMCP-7 resulted in a reduction in the levels of integrin subunits αv and β1 on SVEC4-10 endothelial cells during angiogenesis in vitro. Furthermore, the degradation of integrin subunits occurs both through the direct action of rmMCP-7 and indirectly via the ubiquitin/proteasome system. Even in the presence of a proteasome inhibitor, incubation of endothelial cells with rmMCP-7 induced cell migration and tube formation as well as the beginning of loop formation. These data indicate that the direct degradation of the integrin subunits by rmMCP-7 is sufficient to initiate angiogenesis. The results demonstrate, for the first time, that mMCP-7 acts in angiogenesis through integrin degradation.
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Affiliation(s)
- Devandir A de Souza Junior
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Carolina Santana
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Gabriel V Vieira
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Constance Oliver
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
| | - Maria Celia Jamur
- Department of Cell and Molecular Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14.049-900, Brazil.
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22
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Shekari F, Han CL, Lee J, Mirzaei M, Gupta V, Haynes PA, Lee B, Baharvand H, Chen YJ, Hosseini Salekdeh G. Surface markers of human embryonic stem cells: a meta analysis of membrane proteomics reports. Expert Rev Proteomics 2018; 15:911-922. [PMID: 30358457 DOI: 10.1080/14789450.2018.1539669] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Human embryonic stem cells (hESCs) have unique biological features and attributes that make them attractive in various areas of biomedical research. With heightened applications, there is an ever increasing need for advancement of proteome analysis. Membrane proteins are one of the most important subset of hESC proteins as they can be used as surface markers. Areas covered: This review discusses commonly used surface markers of hESCs, and provides in-depth analysis of available hESC membrane proteome reports and the existence of these markers in many other cell types, especially cancer cells. Appreciating, existing ambiguity in the definition of a membrane protein, we have attempted a meta analysis of the published membrane protein reports of hESCs by using a combination of protein databases and prediction tools to find the most confident plasma membrane proteins in hESCs. Furthermore, responsiveness of plasma membrane proteins to differentiation has been discussed based on available transcriptome profiling data bank. Expert commentary: Combined transcriptome and membrane proteome analysis highlighted additional proteins that may eventually find utility as new cell surface markers.
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Affiliation(s)
- Faezeh Shekari
- a Department of Molecular Systems Biology at Cell Science Research Center , Royan Institute for Stem Cell Biology and Technology, ACECR , Tehran , Iran.,b Department of Developmental Biology , University of Science and Culture, ACECR , Tehran , Iran
| | - Chia-Li Han
- c Chemical Biology and Molecular Biophysics Program , Institute of Chemistry , Taipei , Taiwan , Republic of China
| | - Jaesuk Lee
- d Center for Genomics and Proteomics, Lee Gil Ya Cancer and Diabetes Institute , Gachon University , Incheon , Republic of Korea
| | - Mehdi Mirzaei
- e Department of Molecular Sciences , Macquarie University , Sydney , NSW , Australia.,f Australian Proteome Analysis Facility , Macquarie University , Sydney , NSW , Australia.,g Department of Clinical Medicine , Macquarie University , Sydney , NSW , Australia
| | - Vivek Gupta
- g Department of Clinical Medicine , Macquarie University , Sydney , NSW , Australia
| | - Paul A Haynes
- e Department of Molecular Sciences , Macquarie University , Sydney , NSW , Australia
| | - Bonghee Lee
- d Center for Genomics and Proteomics, Lee Gil Ya Cancer and Diabetes Institute , Gachon University , Incheon , Republic of Korea
| | - Hossein Baharvand
- b Department of Developmental Biology , University of Science and Culture, ACECR , Tehran , Iran.,h Department of Stem Cells and Developmental Biology at Cell Science Research Center , Royan Institute for Stem Cell Biology and Technology, ACECR , Tehran , Iran
| | - Yu-Ju Chen
- c Chemical Biology and Molecular Biophysics Program , Institute of Chemistry , Taipei , Taiwan , Republic of China
| | - Ghasem Hosseini Salekdeh
- a Department of Molecular Systems Biology at Cell Science Research Center , Royan Institute for Stem Cell Biology and Technology, ACECR , Tehran , Iran.,e Department of Molecular Sciences , Macquarie University , Sydney , NSW , Australia.,i Department of Systems and Synthetic biology , Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization , Karaj , Iran
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23
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Kapsokalyvas D, van Hoof M, Wigren S, Chimhanda T, Kuijpers HJ, Ramaekers FCS, Stokroos RJ, van Zandvoort MAMJ. Investigating the race for the surface and skin integration in clinically retrieved abutments with two-photon microscopy. Colloids Surf B Biointerfaces 2017; 159:97-107. [PMID: 28780465 DOI: 10.1016/j.colsurfb.2017.07.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 07/14/2017] [Accepted: 07/26/2017] [Indexed: 12/14/2022]
Abstract
Bone conduction hearing implants can rehabilitate some types of hearing loss. A hydroxyapatite (HA)-coated skin-penetrating abutment was developed to allow for soft tissue preservation and increased skin-abutment adherence. Inflammation is thought to relate to bacterial infection of pockets around the abutment. Upon integration, the host's ability to cover the abutment surface ("race for the surface"), and thus control and prevent competitive bacteria from colonizing it, is improved. However, the attachment mechanisms behind it are not clear. In this study, we applied two-photon microscopy to visualize tissue attachment on abutments retrieved from patients. Skin integration markers were validated and applied to four HA-coated abutments. Evidence of skin integration was found, including the presence of hemidesmosomes, a basement membrane, dermal collagen and vascularization. Cases with clinical signs of severe inflammation and evident biofilm formation showed limited skin integration based on these indicators, confirming the applicability of the "race for the surface" model.
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Affiliation(s)
- D Kapsokalyvas
- Department of Molecular Cell Biology, CARIM School for Cardiovascular diseases, Maastricht University Medical Center, UNS 50, 6229 ER Maastricht, The Netherlands
| | - M van Hoof
- Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Center, PO Box 5800, 6202, AZ, Maastricht, The Netherlands.
| | - S Wigren
- Cochlear Bone Anchored Solutions, AB, Mölnlycke, Sweden
| | - T Chimhanda
- Department of Molecular Cell Biology, CARIM School for Cardiovascular diseases, Maastricht University Medical Center, UNS 50, 6229 ER Maastricht, The Netherlands
| | - H J Kuijpers
- Department of Molecular Cell Biology, CARIM School for Cardiovascular diseases, Maastricht University Medical Center, UNS 50, 6229 ER Maastricht, The Netherlands
| | - F C S Ramaekers
- Department of Molecular Cell Biology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Center, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - R J Stokroos
- Department of Otorhinolaryngology and Head and Neck Surgery, Maastricht University Medical Center, PO Box 5800, 6202, AZ, Maastricht, The Netherlands
| | - M A M J van Zandvoort
- Department of Molecular Cell Biology, CARIM School for Cardiovascular diseases, Maastricht University Medical Center, UNS 50, 6229 ER Maastricht, The Netherlands
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24
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Mammadova-Bach E, Zigrino P, Brucker C, Bourdon C, Freund M, De Arcangelis A, Abrams SI, Orend G, Gachet C, Mangin PH. Platelet integrin α6 β1 controls lung metastasis through direct binding to cancer cell-derived ADAM9. JCI Insight 2016; 1:e88245. [PMID: 27699237 DOI: 10.1172/jci.insight.88245] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Metastatic dissemination of cancer cells, which accounts for 90% of cancer mortality, is the ultimate hallmark of malignancy. Growing evidence suggests that blood platelets have a predominant role in tumor metastasis; however, the molecular mechanisms involved remain elusive. Here, we demonstrate that genetic deficiency of integrin α6β1 on platelets markedly decreases experimental and spontaneous lung metastasis. In vitro and in vivo assays reveal that human and mouse platelet α6β1 supports platelet adhesion to various types of cancer cells. Using a knockdown approach, we identified ADAM9 as the major counter receptor of α6β1 on both human and mouse tumor cells. Static and flow-based adhesion assays of platelets binding to DC-9, a recombinant protein covering the disintegrin-cysteine domain of ADAM9, demonstrated that this receptor directly binds to platelet α6β1. In vivo studies showed that the interplay between platelet α6β1 and tumor cell-expressed ADAM9 promotes efficient lung metastasis. The integrin α6β1-dependent platelet-tumor cell interaction induces platelet activation and favors the extravasation process of tumor cells. Finally, we demonstrate that a pharmacological approach targeting α6β1 efficiently impairs tumor metastasis through a platelet-dependent mechanism. Our study reveals a mechanism by which platelets promote tumor metastasis and suggests that integrin α6β1 represents a promising target for antimetastatic therapies.
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Affiliation(s)
- Elmina Mammadova-Bach
- UMR-S949, INSERM, Etablissement Français du Sang-Alsace, Université de Strasbourg, Strasbourg, France. Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Paola Zigrino
- Department of Dermatology and Venerology, University of Cologne, Cologne, Germany
| | - Camille Brucker
- UMR-S949, INSERM, Etablissement Français du Sang-Alsace, Université de Strasbourg, Strasbourg, France. Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Catherine Bourdon
- UMR-S949, INSERM, Etablissement Français du Sang-Alsace, Université de Strasbourg, Strasbourg, France. Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Monique Freund
- UMR-S949, INSERM, Etablissement Français du Sang-Alsace, Université de Strasbourg, Strasbourg, France. Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Adèle De Arcangelis
- U964, INSERM, UMR 7104, CNRS, Université de Strasbourg, Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, Strasbourg, France
| | - Scott I Abrams
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, New York, USA
| | - Gertaud Orend
- INSERM U1109, The Microenvironmental Niche in Tumorigenesis and Targeted Therapy, Université de Strasbourg, Fédération de Médecine Translationnelle de Strasbourg, LabEx Medalis, Strasbourg, France
| | - Christian Gachet
- UMR-S949, INSERM, Etablissement Français du Sang-Alsace, Université de Strasbourg, Strasbourg, France. Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
| | - Pierre Henri Mangin
- UMR-S949, INSERM, Etablissement Français du Sang-Alsace, Université de Strasbourg, Strasbourg, France. Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, France
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25
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Pei H, Zuo L, Ma J, Cui L, Yu F, Lin Y. Transcriptome profiling reveals differential expression of interferon family induced by dengue virus 2 in human endothelial cells on tissue culture plastic and polyacrylamide hydrogel. J Med Virol 2016; 88:1137-51. [PMID: 27061404 DOI: 10.1002/jmv.24465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2015] [Indexed: 02/06/2023]
Abstract
A cell model is critical for studying the molecular mechanisms of dengue virus 2 (DENV-2) invasions and cell bioactivity can be easily affected by the substrate matrix. Tissue culture plastic (TCP) and polyacrylamide hydrogel (PAMH) are two kinds of matrices widely used for cells. The effects of different matrices on the cultured cells with DENV-2 invasion remain unknown. To address the issue, the effects of TCP and PAMH were explored in primary human umbilical vein endothelial cells (HUVECs) with DENV-2 invasion. HUVECs were assigned into four groups: group A (cultured on TCP), group B (cultured on PAMH), group C (cultured on TCP with DENV-2 invasion), and group D (cultured on PAMH with DENV-2 invasion). Flow cytometry was performed on HUVECs after 48-hr culture. Gene expression patterns were analyzed by gene microarray. The levels of interleukin-29 (IL-29) were measured by real-time qRT-PCR and ELISA. There were no cell apoptosis induced by DENV-2 in HUVECs cultured on TCP and PAMH (P > 0.05). After DENV-2 invasion, the up-regulated genes involve in the activities of oligoadenylate synthetase (OAS), interferon-related cytokine, and growth factors so on. The up-regulated pathways involve in the responses to DENV-2 and innate immunity. IL-29 was induced in the HUVECs on PAMH when compared with the cells on TCP (P < 0.05). Thus, different matrices cause different immune responses, which should be considered in the cell models for exploring the molecular mechanisms of DENV-induced diseases.
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Affiliation(s)
- Hua Pei
- Department of Immunology, Guiyang Medical University, Guiyang, China
- Department of Immunology, Hainan Medical University, Longhua District, Haikou, China
| | - Li Zuo
- Department of Immunology, Guiyang Medical University, Guiyang, China
| | - Jing Ma
- Department of Immunology, Guiyang Medical University, Guiyang, China
| | - Lili Cui
- Department of Immunology, Guiyang Medical University, Guiyang, China
| | - Fangfang Yu
- Department of Immunology, Guiyang Medical University, Guiyang, China
| | - Yingzi Lin
- Department of Immunology, Hainan Medical University, Longhua District, Haikou, China
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26
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Human Arterial Ring Angiogenesis Assay. Methods Mol Biol 2016. [PMID: 27172955 DOI: 10.1007/978-1-4939-3628-1_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
In this chapter we describe a model of human angiogenesis where artery explants from umbilical cords are embedded in gel matrices and subsequently produce capillary-like structures. The human arterial ring (hAR) assay is an innovative system that enables three-dimensional (3D) and live studies of human angiogenesis. This ex vivo model has the advantage of recapitulating several steps of angiogenesis, including endothelial sprouting, migration, and differentiation into capillaries. Furthermore, it can be exploited for (1) identification of new genes regulating sprouting angiogenesis, (2) screening for pro- or anti-angiogenic drugs, (3) identification of biomarkers to monitor the efficacy of anti-angiogenic regimens, and (4) dynamic analysis of tumor microenvironmental effects on vessel formation.
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Abstract
The vascular basement membrane (BM) is a thin and dense cross-linked extracellular matrix layer that covers and protects blood vessels. Understanding how cells cross the physical barrier of the vascular BM will provide greater insight into the potentially critical role of vascular BM breaching in cancer extravasation, leukocyte trafficking and angiogenic sprouting. In the last year, new evidence has mechanistically linked the breaching of vascular BM with the formation of specific cellular micro-domains known as podosomes and invadopodia. These structures are specialized cell-matrix contacts with an inherent ability to degrade the extracellular matrix. Specifically, the formation of podosomes or invadopodia was shown as an important step in vascular sprouting and tumor cell extravasation, respectively. Here, we review and comment on these recent findings and explore the functions of podosomes and invadopodia within the context of pathological processes such as tumor dissemination and tumor angiogenesis.
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Affiliation(s)
- Giorgio Seano
- a Laboratory of Cell Migration ; Candiolo Cancer Institute - FPO; IRCCS ; Turin , Italy
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28
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di Blasio L, Bussolino F, Primo L. Three-dimensional in vitro assay of endothelial cell invasion and capillary tube morphogenesis. Methods Mol Biol 2015; 1214:41-7. [PMID: 25468598 DOI: 10.1007/978-1-4939-1462-3_4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In vitro assays with endothelial cells (EC) cultured on three-dimensional gel recapitulate several aspects of vascular morphogenesis and pathological angiogenesis. The two most used in vitro assays of vascular morphogenesis are the tube formation on extracellular matrix gel and the sprouting from EC spheroids. Tube formation assay measures the ability of EC, plated on gel derived from reconstituted basement membrane, to form capillary-like structures. Sprouting assay is based on spheroids of EC, embedded in collagen gel and stimulated with angiogenic factors, which originate a complex network of capillary-like structures invading the gel. Both these assays can be exploited for antiangiogenic drug screening and gene function analysis during vascular morphogenesis.
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Affiliation(s)
- Laura di Blasio
- Department of Oncology, Institute for Cancer Research and Treatment of Candiolo, University of Torino, Torino, Italy
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29
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Smadja DM, Guerin CL, Boscolo E, Bieche I, Mulliken JB, Bischoff J. α6-Integrin is required for the adhesion and vasculogenic potential of hemangioma stem cells. Stem Cells 2014; 32:684-93. [PMID: 24022922 DOI: 10.1002/stem.1539] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 07/31/2013] [Accepted: 08/12/2013] [Indexed: 11/10/2022]
Abstract
Infantile hemangioma (IH) is the most common tumor of infancy. Hemangioma stem cells (HemSC) are a mesenchymal subpopulation isolated from IH CD133+ cells. HemSC can differentiate into endothelial and pericyte/smooth muscle cells and form vascular networks when injected in immune-deficient mice. α6-Integrin subunit has been implicated in the tumorgenicity of glioblastoma stem cells and the homing properties of hematopoietic, endothelial, and mesenchymal progenitor cells. Therefore, we investigated the possible function(s) of α6-integrin in HemSC. We documented α6-integrin expression in IH tumor specimens and HemSC by RT-qPCR and flow cytometry. We examined the effect of blocking or silencing α6-integrin on the adhesive and proliferative properties of HemSC in vitro and the vasculogenic and homing properties of HemSC in vivo. Targeting α6-integrin in cultured HemSC inhibited adhesion to laminin but had no effect on proliferation. Vessel-forming ability in Matrigel implants and hepatic homing after i.v. delivery were significantly decreased in α6-integrin siRNA-transfected HemSC. In conclusion, α6-integrin is required for HemSC adherence to laminin, vessel formation in vivo, and for homing to the liver. Thus, we uncovered an important role for α6 integrin in the vasculogenic properties of HemSC. Our results suggest that α6-integrin expression on HemSC could be a new target for antihemangioma therapy.
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Affiliation(s)
- David M Smadja
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA; Paris Descartes University, Sorbonne Paris Cite, Paris, France; AP-HP, Hôpital Européen Georges Pompidou, Department of Hematology, Paris, France
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30
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Gagliardi PA, di Blasio L, Puliafito A, Seano G, Sessa R, Chianale F, Leung T, Bussolino F, Primo L. PDK1-mediated activation of MRCKα regulates directional cell migration and lamellipodia retraction. ACTA ACUST UNITED AC 2014; 206:415-34. [PMID: 25092657 PMCID: PMC4121984 DOI: 10.1083/jcb.201312090] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Directional cell migration is of paramount importance in both physiological and pathological processes, such as development, wound healing, immune response, and cancer invasion. Here, we report that 3-phosphoinositide-dependent kinase 1 (PDK1) regulates epithelial directional migration and invasion by binding and activating myotonic dystrophy kinase-related CDC42-binding kinase α (MRCKα). We show that the effect of PDK1 on cell migration does not involve its kinase activity but instead relies on its ability to bind membrane phosphatidylinositol (3,4,5)-trisphosphate. Upon epidermal growth factor (EGF) stimulation, PDK1 and MRCKα colocalize at the cell membrane in lamellipodia. We demonstrate that PDK1 positively modulates MRCKα activity and drives its localization within lamellipodia. Likewise, the retraction phase of lamellipodia is controlled by PDK1 through an MRCKα-dependent mechanism. In summary, we discovered a functional pathway involving PDK1-mediated activation of MRCKα, which links EGF signaling to myosin contraction and directional migration.
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Affiliation(s)
- Paolo Armando Gagliardi
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Laura di Blasio
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Alberto Puliafito
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Giorgio Seano
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Roberto Sessa
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Federica Chianale
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Thomas Leung
- Institute of Molecular and Cell Biology, A-STAR, Singapore 138673, Singapore
| | - Federico Bussolino
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, ItalyDepartment of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
| | - Luca Primo
- Department of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, ItalyDepartment of Oncology and Center for Molecular Systems Biology, University of Turin, Turin 10060, Italy Laboratory of Cell Migration, Candiolo Cancer Institute FPO-IRCCS, Candiolo 10060, Italy
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Seano G, Chiaverina G, Gagliardi PA, di Blasio L, Puliafito A, Bouvard C, Sessa R, Tarone G, Sorokin L, Helley D, Jain RK, Serini G, Bussolino F, Primo L. Endothelial podosome rosettes regulate vascular branching in tumour angiogenesis. Nat Cell Biol 2014; 16:931-41, 1-8. [PMID: 25218639 DOI: 10.1038/ncb3036] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 08/06/2014] [Indexed: 02/06/2023]
Abstract
The mechanism by which angiogenic endothelial cells break the physical barrier of the vascular basement membrane and consequently sprout to form new vessels in mature tissues is unclear. Here, we show that the angiogenic endothelium is characterized by the presence of functional podosome rosettes. These extracellular-matrix-degrading and adhesive structures are precursors of de novo branching points and represent a key feature in the formation of new blood vessels. VEGF-A stimulation induces the formation of endothelial podosome rosettes by upregulating integrin α6β1. In contrast, the binding of α6β1 integrin to the laminin of the vascular basement membrane impairs the formation of podosome rosettes by restricting α6β1 integrin to focal adhesions and hampering its translocation to podosomes. Using an ex vivo sprouting angiogenesis assay, transgenic and knockout mouse models and human tumour sample analysis, we provide evidence that endothelial podosome rosettes control blood vessel branching and are critical regulators of pathological angiogenesis.
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Affiliation(s)
- Giorgio Seano
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy [3] Edwin L. Steele Laboratory for Tumor Biology, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Giulia Chiaverina
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Paolo Armando Gagliardi
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Laura di Blasio
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Alberto Puliafito
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Claire Bouvard
- UMR-S 765, Université Paris Descartes, Sorbonne Paris Cité, Paris 75006, France
| | - Roberto Sessa
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Guido Tarone
- Department of Molecular Biotechnology and Health Sciences, University of Torino, Molecular Biotechnology Center, Turin 10124, Italy
| | - Lydia Sorokin
- Institute of Physiological Chemistry and Pathobiochemistry, Muenster University, Muenster 48149, Germany
| | - Dominique Helley
- UMR-S 970, Université Paris Descartes, Sorbonne Paris Cité, Paris 75006, France
| | - Rakesh K Jain
- Edwin L. Steele Laboratory for Tumor Biology, Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Guido Serini
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Federico Bussolino
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
| | - Luca Primo
- 1] Department of Oncology, University of Torino, Turin 10100, Italy [2] Candiolo Cancer Institute-FPO, IRCCS, Candiolo 10060, Italy
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32
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Bouvard C, Segaoula Z, De Arcangelis A, Galy-Fauroux I, Mauge L, Fischer AM, Georges-Labouesse E, Helley D. Tie2-dependent deletion of α6 integrin subunit in mice reduces tumor growth and angiogenesis. Int J Oncol 2014; 45:2058-64. [PMID: 25176420 DOI: 10.3892/ijo.2014.2631] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 07/17/2014] [Indexed: 11/05/2022] Open
Abstract
The α6 integrin subunit (α6) has been implicated in cancer cell migration and in the progression of several malignancies, but its role in tumor angiogenesis is unclear. In mice, anti-α6 blocking antibodies reduce tumor angiogenesis, whereas Tie1-dependent α6 gene deletion enhances neovessel formation in melanoma and lung carcinoma. To clarify the discrepancy in these results we used the cre-lox system to generate a mouse line, α6fl/fl‑Tie2Cre(+), with α6 gene deletion specifically in Tie2-lineage cells: endothelial cells, pericytes, subsets of hematopoietic stem cells, and Tie2-expressing monocytes/macrophages (TEMs), known for their proangiogenic properties. Loss of α6 expression in α6fl/fl‑Tie2Cre(+) mice reduced tumor growth in a murine B16F10 melanoma model. Immunohistological analysis of the tumors showed that Tie2-dependent α6 gene deletion was associated with reduced tumor vascularization and with reduced infiltration of proangiogenic Tie2-expressing macrophages. These findings demonstrate that α6 integrin subunit plays a major role in tumor angiogenesis and TEM infiltration. Targeting α6 could be used as a strategy to reduce tumor growth.
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Affiliation(s)
| | | | - Adèle De Arcangelis
- Institute of Genetics, Cellular and Molecular Biology, INSERM U964, CNRS UMR 7104, University of Strasbourg, Illkirch, France
| | | | - Laetitia Mauge
- University Paris Descartes, Sorbonne Paris Cité, Paris, France
| | | | - Elisabeth Georges-Labouesse
- Institute of Genetics, Cellular and Molecular Biology, INSERM U964, CNRS UMR 7104, University of Strasbourg, Illkirch, France
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33
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Seano G, Daubon T, Génot E, Primo L. Podosomes as novel players in endothelial biology. Eur J Cell Biol 2014; 93:405-12. [PMID: 25199436 DOI: 10.1016/j.ejcb.2014.07.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 07/17/2014] [Accepted: 07/28/2014] [Indexed: 11/15/2022] Open
Abstract
Podosomes and invadopodia, collectively known as invadosomes, are specialized cell-matrix contacts with an inherent ability to degrade extracellular matrix. Their occurrence in either normal (podosomes) or cancer cells (invadopodia) is thus traditionally associated with cell invasiveness and tissue remodelling. These specialized micro-domains of the plasma membrane are characterized by enrichment of F-actin, cortactin and metalloproteases. Recent developments in the field show that, under some circumstances, vascular endothelial cells (ECs) can be induced to form this kind of peculiar structures. Cultured ECs contain either 0.5-1-μm-wide individual podosomes or 5 to 10 μm wide ring-like clusters of podosomes (podosome rosettes). The formation of individual podosomes or podosome rosettes in ECs can be induced by soluble factors, such as TGFβ, VEGF, TNFα or pharmacological agents, such as phorbol esters. Recently, the evidence of the existence of such structures in vascular endothelium has been provided by ex vivo observation. Endothelial podosome rosettes have recently been functionally linked to arterial remodelling and sprouting angiogenesis. Concerted efforts aim now at confirming the relevance of endothelial podosomes in these patho-physiological processes in vivo. In the current review, we will introduce some general considerations regarding ECs in the vascular system. From there on, we will review the various EC types where podosomes have been described and the state-of-art knowledge hitherto generated regarding endothelial podosome features.
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Affiliation(s)
- Giorgio Seano
- Laboratory of Cell Migration, Candiolo Cancer Institute, FPO, IRCCS, Turin, Italy; Edwin L. Steele Laboratory for Tumor Biology, Department of Radiation Oncology, Harvard Medical School, Massachusetts General Hospital, Boston, MAUSA
| | - Thomas Daubon
- European Institute of Chemistry and Biology, Université de Bordeaux, Pessac, France; INSERM, 1045, Université de Bordeaux, Bordeaux, France
| | - Elisabeth Génot
- European Institute of Chemistry and Biology, Université de Bordeaux, Pessac, France; INSERM, 1045, Université de Bordeaux, Bordeaux, France.
| | - Luca Primo
- Laboratory of Cell Migration, Candiolo Cancer Institute, FPO, IRCCS, Turin, Italy; Department of Oncology, University of Torino, Turin, Italy.
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Samarelli AV, Riccitelli E, Bizzozero L, Silveira TN, Seano G, Pergolizzi M, Vitagliano G, Cascone I, Carpentier G, Bottos A, Primo L, Bussolino F, Arese M. Neuroligin 1 induces blood vessel maturation by cooperating with the α6 integrin. J Biol Chem 2014; 289:19466-76. [PMID: 24860089 DOI: 10.1074/jbc.m113.530972] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The synaptic protein Neuroligin 1 (NLGN1), a cell adhesion molecule, is critical for the formation and consolidation of synaptic connectivity and is involved in vascular development. The mechanism through which NLGN1 acts, especially in vascular cells, is unknown. Here, we aimed at deepening our knowledge on the cellular activities and molecular pathways exploited by endothelial NLGN1 both in vitro and in vivo. We analyzed the phenotypic consequences of NLGN1 expression modulation in endothelial cells through in vitro angiogenesis assays and the mouse postnatal retinal angiogenesis model. We demonstrate that NLGN1, whereas not affecting endothelial cell proliferation or migration, modulates cell adhesion to the vessel stabilizing protein laminin through cooperation with the α6 integrin, a specific laminin receptor. Finally, we show that in vivo, NLGN1 and α6 integrin preferentially colocalize in the mature retinal vessels, whereas NLGN1 deletion causes an aberrant VE-cadherin, laminin and α6 integrin distribution in vessels, along with significant structural defects in the vascular tree.
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Affiliation(s)
- Anna Valeria Samarelli
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Elena Riccitelli
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Laura Bizzozero
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Tatiana Nunes Silveira
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Giorgio Seano
- From the Department of Oncology, University of Torino Medical School, Cell Migration
| | - Margherita Pergolizzi
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Grazia Vitagliano
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Ilaria Cascone
- the Laboratoire CRRET, Faculté des Sciences et Technologie, Université Paris Est Créteil Val de Marne, 61 avenue du Général de Gaulle, 94010 Créteil Cedex, France
| | - Gilles Carpentier
- the Laboratoire CRRET, Faculté des Sciences et Technologie, Université Paris Est Créteil Val de Marne, 61 avenue du Général de Gaulle, 94010 Créteil Cedex, France
| | - Alessia Bottos
- From the Department of Oncology, University of Torino Medical School, Laboratory of Neurovascular Biology
| | - Luca Primo
- From the Department of Oncology, University of Torino Medical School, Cell Migration
| | - Federico Bussolino
- From the Department of Oncology, University of Torino Medical School, Vascular Oncology, Candiolo Cancer Institute,10060 Candiolo, Torino Italy
| | - Marco Arese
- From the Department of Oncology, University of Torino Medical School and Laboratory of Neurovascular Biology, Candiola Cancer Institute,10060 Candiola, Torino, Italy.
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35
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Aberrant expression and altered cellular localization of desmosomal and hemidesmosomal proteins are associated with aggressive clinicopathological features of oral squamous cell carcinoma. Virchows Arch 2014; 465:35-47. [PMID: 24849508 DOI: 10.1007/s00428-014-1594-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 04/22/2014] [Accepted: 05/12/2014] [Indexed: 10/25/2022]
Abstract
Disruption of cell adhesion plays a central role in dedifferentiation, invasion, and metastasis of various cancers. The desmosome and hemidesmosome are anchoring junctions that control cell-cell and cell-matrix adhesion, respectively. To clarify their contributions in mediating the biological properties of oral cancer, we immunohistochemically examined the expression of desmoglein 1 (DSG1), DSG2, DSG3, desmocollin 2 (DSC2), integrin beta 4 (ITGB4), laminin gamma chain 2 (LAMC2), and collagen type 17 alpha 1 (COL17A1) in 51 cases of oral squamous cell carcinoma. On normal oral epithelial cells, DSG1, DSG3, DSC2, and COL17A1 were expressed on the plasma membrane, while ITGB4 and mature LAMC2 were present at the basement membrane. In cancer, the expression of DSG1, DSG3, DSC2, and COL17A1 decreased and internalized to the cytoplasm. Cytoplasmic expression of DSG2, ITGB4, and LAMC2 was induced in the cancer cells facing to the stroma. We scored immunohistochemical expression and correlated this to clinicopathological parameters including histologic differentiation, pattern of invasion, and presence of lymph node metastasis. Decrease of DSG3 and DSC2 expression correlated with a more aggressive cancer phenotype: less differentiated and more invasive histologic features and a higher incidence of nodal metastasis. Lower COL17A1 and higher LAMC2 expression were also associated with a more aggressive phenotype. The present study demonstrates that aberrant expression and altered cellular localization of desmosomal and hemidesmosomal proteins are associated with aggressive clinicopathological features of oral cancer. This reinforces the notion that disturbance of the keratin-associated anchoring junctions confers aggressive features to cancer cells.
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36
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Lunardi S, Muschel RJ, Brunner TB. The stromal compartments in pancreatic cancer: are there any therapeutic targets? Cancer Lett 2013; 343:147-55. [PMID: 24141189 DOI: 10.1016/j.canlet.2013.09.039] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 09/25/2013] [Accepted: 09/26/2013] [Indexed: 12/16/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterised by an abundant stromal response also known as a desmoplastic reaction. Pancreatic Stellate Cells have been identified as playing a key role in pancreatic cancer desmoplasia. There is accumulating evidence that the stroma contributes to tumour progression and to the low therapeutic response of PDAC patients. In this review we described the main actors of the desmoplastic reaction within PDAC and novel therapeutic approaches that are being tested to block the detrimental function of the stroma.
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Affiliation(s)
- Serena Lunardi
- Gray Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Churchill Hospital, RRI, Oxford OX3 7LJ, UK
| | - Ruth J Muschel
- Gray Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Churchill Hospital, RRI, Oxford OX3 7LJ, UK
| | - Thomas B Brunner
- Gray Institute for Radiation Oncology and Biology, Department of Oncology, University of Oxford, Churchill Hospital, RRI, Oxford OX3 7LJ, UK; Department of Radiation Oncology, University Hospitals Freiburg, Robert-Koch-Straße 3, 79106 Freiburg, Germany.
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37
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Zhu Q, Kim YH, Wang D, Oh SP, Luo K. SnoN facilitates ALK1-Smad1/5 signaling during embryonic angiogenesis. ACTA ACUST UNITED AC 2013; 202:937-50. [PMID: 24019535 PMCID: PMC3776356 DOI: 10.1083/jcb.201208113] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In endothelial cells, two type I receptors of the transforming growth factor β (TGF-β) family, ALK1 and ALK5, coordinate to regulate embryonic angiogenesis in response to BMP9/10 and TGF-β. Whereas TGF-β binds to and activates ALK5, leading to Smad2/3 phosphorylation and inhibition of endothelial cell proliferation and migration, BMP9/10 and TGF-β also bind to ALK1, resulting in the activation of Smad1/5. SnoN is a negative regulator of ALK5 signaling through the binding and repression of Smad2/3. Here we uncover a positive role of SnoN in enhancing Smad1/5 activation in endothelial cells to promote angiogenesis. Upon ligand binding, SnoN directly bound to ALK1 on the plasma membrane and facilitated the interaction between ALK1 and Smad1/5, enhancing Smad1/5 phosphorylation. Disruption of this SnoN-Smad interaction impaired Smad1/5 activation and up-regulated Smad2/3 activity. This resulted in defective angiogenesis and arteriovenous malformations, leading to embryonic lethality at E12.5. Thus, SnoN is essential for TGF-β/BMP9-dependent biological processes by its ability to both positively and negatively modulate the activities of Smad-dependent pathways.
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Affiliation(s)
- Qingwei Zhu
- Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720
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38
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Goel S, Wong AHK, Jain RK. Vascular normalization as a therapeutic strategy for malignant and nonmalignant disease. Cold Spring Harb Perspect Med 2013; 2:a006486. [PMID: 22393532 DOI: 10.1101/cshperspect.a006486] [Citation(s) in RCA: 232] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Pathological angiogenesis-driven by an imbalance of pro- and antiangiogenic signaling-is a hallmark of many diseases, both malignant and benign. Unlike in the healthy adult in which angiogenesis is tightly regulated, such diseases are characterized by uncontrolled new vessel formation, resulting in a microvascular network characterized by vessel immaturity, with profound structural and functional abnormalities. The consequence of these abnormalities is further modification of the microenvironment, often serving to fuel disease progression and attenuate response to conventional therapies. In this article, we present the "vascular normalization" hypothesis, which states that antiangiogenic therapy, by restoring the balance between pro- and antiangiogenic signaling, can induce a more structurally and functionally normal vasculature in a variety of diseases. We present the preclinical and clinical evidence supporting this concept and discuss how it has contributed to successful treatment of both solid tumors and several benign conditions.
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Affiliation(s)
- Shom Goel
- Edwin Steele Laboratory for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA.
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39
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Abstract
Key Points
Human arterial ring assay is an innovative system for the three-dimensional study of tumor angiogenesis. This assay can be exploited for antiangiogenic drug screening and gene function analysis on human vessels.
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40
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Matejuk A, Collet G, Nadim M, Grillon C, Kieda C. MicroRNAs and tumor vasculature normalization: impact on anti-tumor immune response. Arch Immunol Ther Exp (Warsz) 2013; 61:285-99. [PMID: 23575964 DOI: 10.1007/s00005-013-0231-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 01/15/2013] [Indexed: 12/21/2022]
Abstract
Inefficient immune response is a major glitch during tumor growth and progression. Chaotic and leaky blood vessels created in the process of angiogenesis allow tumor cells to escape and extricate anti-cancer immunity. Proangiogenic characteristics of hypoxic tumor microenvironment maintained by low oxygen tension attract endothelial progenitor cells, drive expansion of cancer stem cells, and deviantly differentiate monocyte descendants. Such cellular milieu further boosts immune tolerance and eventually appoint immunity for cancer advantage. Blood vessel normalization strategies that equilibrate oxygen levels within tumor and fix abnormal vasculature bring exciting promises to future anticancer therapies especially when combined with conventional chemotherapy. Recently, a new group of microRNAs (miRs) engaged in angiogenesis, called angiomiRs and hypoxamiRs, emerged as new therapeutic targets in cancer. Some of those miRs were found to efficiently regulate cancer immunity and their dysregulation efficiently programs aberrant angiogenesis and cancer metastasis. The present review highlights new findings in the field of miRs proficiency to normalize aberrant angiogenesis and to restore anti-tumor immune responses.
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Affiliation(s)
- Agata Matejuk
- Centre de Biophysique Moléculaire, CNRS UPR 4301, rue Charles Sadron, 45071 Orléans, France.
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41
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Comparative analysis of platelet-derived microparticles reveals differences in their amount and proteome depending on the platelet stimulus. J Proteomics 2012; 76 Spec No.:287-96. [DOI: 10.1016/j.jprot.2012.02.030] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 02/11/2012] [Accepted: 02/22/2012] [Indexed: 01/14/2023]
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Larrieu-Lahargue F, Thomas KR, Li DY. Netrin ligands and receptors: lessons from neurons to the endothelium. Trends Cardiovasc Med 2012; 22:44-7. [PMID: 22841834 DOI: 10.1016/j.tcm.2012.06.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Netrins were initially identified as secreted ligands regulating axon guidance and migration through interaction with canonical receptors. Netrins were then shown to be necessary for development of a range of tissues, including lung, mammary gland, and the vasculature. While new netrin receptors, as well as alternative ligands for classical netrin receptors, were described in the neuronal and epithelial fields, there was a singular focus on canonical netrin receptors in the vascular system, leading to controversy on netrin function and the nature of receptor-mediated netrin signaling in the endothelium. Here, we summarize the current state of knowledge on netrin ligands and receptors and discuss questions, controversies, and perspectives surrounding netrin functions and receptor identity in the vasculature.
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43
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Qin L, Bromberg-White JL, Qian CN. Opportunities and challenges in tumor angiogenesis research: back and forth between bench and bed. Adv Cancer Res 2012; 113:191-239. [PMID: 22429856 DOI: 10.1016/b978-0-12-394280-7.00006-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Angiogenesis is essential for tumor growth and metastasis. Many signaling pathways are involved in regulating tumor angiogenesis, with the vascular endothelial growth factor pathway being of particular interest. The recognition of the heterogeneity in tumor vasculature has led to better predictions of prognosis through differential analyses of the vasculature. However, the clinical benefits from antiangiogenic therapy are limited, because many antiangiogenic agents cannot provide long-term survival benefits, suggesting the development of drug resistance. Activation of the hypoxia and c-Met pathways, as well as other proangiogenic factors, has been shown to be responsible for such resistance. Vessel co-option could be another important mechanism. For future development, research to improve the efficacy of antiangiogenic therapy includes (a) using tumor-derived endothelial cells for drug screening; (b) developing the drugs focusing on specific tumor types; (c) developing a better preclinical model for drug study; (d) developing more accurate biomarkers for patient selection; (e) targeting the c-Met pathway or other pathways; and (f) optimizing the dose and schedule of antiangiogenic therapy. In summary, the future of antiangiogenic therapy for cancer patients depends on our efforts to develop the right drugs, select the right patients, and optimize the treatment conditions.
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Affiliation(s)
- Li Qin
- State Key Laboratory on Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, PR China
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44
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Noghero A, Perino A, Seano G, Saglio E, Lo Sasso G, Veglio F, Primo L, Hirsch E, Bussolino F, Morello F. Liver X receptor activation reduces angiogenesis by impairing lipid raft localization and signaling of vascular endothelial growth factor receptor-2. Arterioscler Thromb Vasc Biol 2012; 32:2280-8. [PMID: 22723445 DOI: 10.1161/atvbaha.112.250621] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE Liver X receptors (LXRα, LXRβ) are master regulators of cholesterol homeostasis. In the endothelium, perturbations of cell cholesterol have an impact on fundamental processes. We, therefore, assessed the effects of LXR activation on endothelial functions related to angiogenesis in vitro and in vivo. METHODS AND RESULTS LXR agonists (T0901317, GW3965) blunted migration, tubulogenesis, and proliferation of human umbilical vein endothelial cells. By affecting endothelial cholesterol homeostasis, LXR activation impaired the compartmentation of vascular endothelial growth factor receptor-2 in lipid rafts/caveolae and led to defective phosphorylation and downstream signaling of vascular endothelial growth factor receptor-2 upon vascular endothelial growth factor-A stimulation. Consistently, the antiangiogenic actions of LXR agonists could be prevented by coadministration of exogenous cholesterol. LXR agonists reduced endothelial sprouting from wild-type but not from LXRα(-/-)/LXRβ(-/-) knockout aortas and blunted the vascularization of implanted angioreactors in vivo. Furthermore, T0901317 reduced the growth of Lewis lung carcinoma grafts in mice by impairing angiogenesis. CONCLUSIONS Pharmacological activation of endothelial LXRs reduces angiogenesis by restraining cholesterol-dependent vascular endothelial growth factor receptor-2 compartmentation and signaling. Thus, administration of LXR agonists could exert therapeutic effects in pathological conditions characterized by uncontrolled angiogenesis.
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Affiliation(s)
- Alessio Noghero
- Institute for Cancer Research and Treatment (IRCC), Candiolo, Italy
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45
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van Hinsbergh VWM. Tie2 lineage deletion of 6 integrin: endothelial and haematopoietic cells in neovascularization. Cardiovasc Res 2012; 95:5-6. [DOI: 10.1093/cvr/cvs171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Bouvard C, De Arcangelis A, Dizier B, Galy-Fauroux I, Fischer AM, Georges-Labouesse E, Helley D. Tie2-dependent knockout of α6 integrin subunit in mice reduces post-ischaemic angiogenesis. Cardiovasc Res 2012; 95:39-47. [DOI: 10.1093/cvr/cvs153] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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47
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Goel S, Duda DG, Xu L, Munn LL, Boucher Y, Fukumura D, Jain RK. Normalization of the vasculature for treatment of cancer and other diseases. Physiol Rev 2011; 91:1071-121. [PMID: 21742796 DOI: 10.1152/physrev.00038.2010] [Citation(s) in RCA: 1120] [Impact Index Per Article: 86.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
New vessel formation (angiogenesis) is an essential physiological process for embryologic development, normal growth, and tissue repair. Angiogenesis is tightly regulated at the molecular level. Dysregulation of angiogenesis occurs in various pathologies and is one of the hallmarks of cancer. The imbalance of pro- and anti-angiogenic signaling within tumors creates an abnormal vascular network that is characterized by dilated, tortuous, and hyperpermeable vessels. The physiological consequences of these vascular abnormalities include temporal and spatial heterogeneity in tumor blood flow and oxygenation and increased tumor interstitial fluid pressure. These abnormalities and the resultant microenvironment fuel tumor progression, and also lead to a reduction in the efficacy of chemotherapy, radiotherapy, and immunotherapy. With the discovery of vascular endothelial growth factor (VEGF) as a major driver of tumor angiogenesis, efforts have focused on novel therapeutics aimed at inhibiting VEGF activity, with the goal of regressing tumors by starvation. Unfortunately, clinical trials of anti-VEGF monotherapy in patients with solid tumors have been largely negative. Intriguingly, the combination of anti-VEGF therapy with conventional chemotherapy has improved survival in cancer patients compared with chemotherapy alone. These seemingly paradoxical results could be explained by a "normalization" of the tumor vasculature by anti-VEGF therapy. Preclinical studies have shown that anti-VEGF therapy changes tumor vasculature towards a more "mature" or "normal" phenotype. This "vascular normalization" is characterized by attenuation of hyperpermeability, increased vascular pericyte coverage, a more normal basement membrane, and a resultant reduction in tumor hypoxia and interstitial fluid pressure. These in turn can lead to an improvement in the metabolic profile of the tumor microenvironment, the delivery and efficacy of exogenously administered therapeutics, the efficacy of radiotherapy and of effector immune cells, and a reduction in number of metastatic cells shed by tumors into circulation in mice. These findings are consistent with data from clinical trials of anti-VEGF agents in patients with various solid tumors. More recently, genetic and pharmacological approaches have begun to unravel some other key regulators of vascular normalization such as proteins that regulate tissue oxygen sensing (PHD2) and vessel maturation (PDGFRβ, RGS5, Ang1/2, TGF-β). Here, we review the pathophysiology of tumor angiogenesis, the molecular underpinnings and functional consequences of vascular normalization, and the implications for treatment of cancer and nonmalignant diseases.
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Affiliation(s)
- Shom Goel
- Edwin L. Steele Laboratory for Tumor Biology, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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Larrieu-Lahargue F, Welm AL, Thomas KR, Li DY. Netrin-4 activates endothelial integrin {alpha}6{beta}1. Circ Res 2011; 109:770-4. [PMID: 21799154 DOI: 10.1161/circresaha.111.247239] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
RATIONALE Netrin-4 regulates vascular development. Identity of netrin-4 endothelial receptor and its subsequent cell functions is controversial. We previously demonstrated that the inhibition of netrin-1 canonical receptors, Unc5B and neogenin, expressed by lymphatic endothelial cells, do not suppress netrin-4-induced cell signaling and functions. Netrin family members were shown to signal through a range of receptors, including integrins (such as α3β1, α6β1, and α6β4) in nonendothelial cells. OBJECTIVE We tested whether integrins are netrin-4 receptors in the endothelium. METHODS AND RESULTS The α6β1 integrin is expressed by endothelial cells, and binds netrin-4 in a dose-dependent manner. Inhibition of α6 or β1 integrin subunits suppresses netrin-4-induced endothelial cell migration, adhesion, and focal adhesion contact. Netrin-4-stimulated phosphorylation of Src kinase family, effectors of endothelial cell migration, is also abolished by α6 or β1 inhibition. Finally, netrin-4 and α6β1 integrin expression colocalize in mouse embryonic, intestine, and tumor vasculature. CONCLUSIONS The α6β1 integrin is a netrin-4 receptor in lymphatic endothelium and consequently represents a potential target to inhibit netrin-4-induced metastatic dissemination.
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Burns JS, Kristiansen M, Kristensen LP, Larsen KH, Nielsen MO, Christiansen H, Nehlin J, Andersen JS, Kassem M. Decellularized matrix from tumorigenic human mesenchymal stem cells promotes neovascularization with galectin-1 dependent endothelial interaction. PLoS One 2011; 6:e21888. [PMID: 21779348 PMCID: PMC3133605 DOI: 10.1371/journal.pone.0021888] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 06/13/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Acquisition of a blood supply is fundamental for extensive tumor growth. We recently described vascular heterogeneity in tumours derived from cell clones of a human mesenchymal stem cell (hMSC) strain (hMSC-TERT20) immortalized by retroviral vector mediated human telomerase (hTERT) gene expression. Histological analysis showed that cells of the most vascularized tumorigenic clone, -BD11 had a pericyte-like alpha smooth muscle actin (ASMA+) and CD146+ positive phenotype. Upon serum withdrawal in culture, -BD11 cells formed cord-like structures mimicking capillary morphogenesis. In contrast, cells of the poorly tumorigenic clone, -BC8 did not stain for ASMA, tumours were less vascularized and serum withdrawal in culture led to cell death. By exploring the heterogeneity in hMSC-TERT20 clones we aimed to understand molecular mechanisms by which mesenchymal stem cells may promote neovascularization. METHODOLOGY/PRINCIPAL FINDINGS Quantitative qRT-PCR analysis revealed similar mRNA levels for genes encoding the angiogenic cytokines VEGF and Angiopoietin-1 in both clones. However, clone-BD11 produced a denser extracellular matrix that supported stable ex vivo capillary morphogenesis of human endothelial cells and promoted in vivo neovascularization. Proteomic characterization of the -BD11 decellularized matrix identified 50 extracellular angiogenic proteins, including galectin-1. siRNA knock down of galectin-1 expression abrogated the ex vivo interaction between decellularized -BD11 matrix and endothelial cells. More stable shRNA knock down of galectin-1 expression did not prevent -BD11 tumorigenesis, but greatly reduced endothelial migration into -BD11 cell xenografts. CONCLUSIONS Decellularized hMSC matrix had significant angiogenic potential with at least 50 angiogenic cell surface and extracellular proteins, implicated in attracting endothelial cells, their adhesion and activation to form tubular structures. hMSC -BD11 surface galectin-1 expression was required to bring about matrix-endothelial interactions and for xenografted hMSC -BD11 cells to optimally recruit host vasculature.
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Affiliation(s)
- Jorge S Burns
- Molecular Endocrinology Laboratory KMEB, Department of Endocrinology and Metabolism, Odense University Hospital, University of Southern Denmark, Odense, Denmark.
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The effect of cell-ECM adhesion on signalling via the ErbB family of growth factor receptors. Biochem Soc Trans 2011; 39:568-73. [PMID: 21428941 DOI: 10.1042/bst0390568] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Integrins and growth factor receptors of the ErbB family are involved in the regulation of cellular interactions with the extracellular microenvironment. Cross-talk between these two groups of transmembrane receptors is essential for cellular responses and can be regulated through the formation of multimolecular complexes. Tetraspanins as facilitators and building blocks of specialized microdomains may be involved in this process. In the present study, we demonstrated that, in contrast with previous reports, integrin-mediated adhesion did not stimulate ligand-independent activation of ErbB receptors in epithelial cells. However, integrin-dependent adhesion potentiated ligand-induced activation of EGFR (epidermal growth factor receptor) and ErbB2 and facilitated receptor homo- and hetero-dimerization. The actin cytoskeleton appeared to play a critical role in this phenomenon.
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