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Ma J, Zhang L, Zhang X, Zhang L, Zhang H, Zhu Y, Huang X, Zhang T, Tang X, Wang Y, Chen L, Pu Q, Yang L, Cao Z, Ding BS. Inhibiting endothelial Rhoj blocks profibrotic vascular intussusception and angiocrine factors to sustain lung regeneration. Sci Transl Med 2024; 16:eado5266. [PMID: 39196961 DOI: 10.1126/scitranslmed.ado5266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 08/07/2024] [Indexed: 08/30/2024]
Abstract
Lung regeneration after fibrosis requires formation of functional new vasculature, which is essential for gas exchange and cellular cross-talk with other lung cells. It remains unknown how the lung vasculature can be regenerated without fibrosis. Here, we tested the role of N6-methyladenosine (m6A) modification of forkhead box protein O1 (Foxo1) mRNA in lung regeneration after pneumonectomy (PNX) in mice, a model for lung regrowth after surgical resection. Endothelial cell (EC)-specific knockout of methyltransferase-like 3 (Mettl3) and Foxo1 caused nonproductive intussusceptive angiogenesis (IA), which impaired regeneration and enhanced fibrosis. This nonproductive IA was characterized by enhanced endothelial proliferation and increased vascular splitting with increased numbers of pillar ECs. Endothelial-selective knockout of Mettl3 in mice stimulated nonproductive IA and up-regulation of profibrotic factors after PNX, promoting regeneration to fibrotic transition. EC-specific mutation of m6A modification sites in the Foxo1 gene in mice revealed that endothelial Mettl3 modified A504 and A2035 sites in the Foxo1 mRNA to maintain pro-regenerative endothelial glycolysis, ensuring productive IA and lung regeneration without fibrosis. Suppression of Mettl3-Foxo1 signaling stimulated a subset of hyperglycolytic and hyperproliferative 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (Pfkfb3)+, Ras homolog family member J (Rhoj)+, and platelet-derived growth factor subunit B (Pdgfb)+ ECs in both human and mouse lungs with fibrosis. Inhibiting this Pfkfb3+Rhoj+Pdgfb+ EC subset normalized IA, alleviated fibrosis, and restored regeneration in bleomycin (BLM)-injured mouse lungs. We found that m6A modification of Foxo1 in the mouse vasculature promoted lung regeneration over fibrosis after PNX and BLM injury.
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Affiliation(s)
- Jie Ma
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Liyin Zhang
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Xu Zhang
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China
| | - Lanlan Zhang
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
- Department of Respiratory and Critical Care Medicine, Department of Thoracic Surgery and Institute of Thoracic Oncology, and Laboratory of Liver Transplantation, West China Hospital, Chengdu 610041, China
| | - Hua Zhang
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Yulei Zhu
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Xingming Huang
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Ting Zhang
- Department of Respiratory and Critical Care Medicine, Department of Thoracic Surgery and Institute of Thoracic Oncology, and Laboratory of Liver Transplantation, West China Hospital, Chengdu 610041, China
| | - Xiangdong Tang
- Department of Respiratory and Critical Care Medicine, Department of Thoracic Surgery and Institute of Thoracic Oncology, and Laboratory of Liver Transplantation, West China Hospital, Chengdu 610041, China
| | - Yuan Wang
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Lu Chen
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Qiang Pu
- Department of Respiratory and Critical Care Medicine, Department of Thoracic Surgery and Institute of Thoracic Oncology, and Laboratory of Liver Transplantation, West China Hospital, Chengdu 610041, China
| | - Liming Yang
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, China
| | - Zhongwei Cao
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
| | - Bi-Sen Ding
- Key Lab of Birth Defects and Related Diseases of Women and Children of MOE; State Key Lab of Biotherapy; State Key Laboratory of Respiratory Health and Multimorbidity; NHC Key Laboratory of Chronobiology; Sichuan-Chongqing Key Lab of Bio-Resource Research and Utilization; Development and Related Diseases of Women and Children Key Lab of Sichuan Province; West China Second University Hospital, College of Life Sciences, Sichuan University, Chengdu 610041, China
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2
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Acosta-Iborra B, Gil-Acero AI, Sanz-Gómez M, Berrouayel Y, Puente-Santamaría L, Alieva M, del Peso L, Jiménez B. Bhlhe40 Regulates Proliferation and Angiogenesis in Mouse Embryoid Bodies under Hypoxia. Int J Mol Sci 2024; 25:7669. [PMID: 39062912 PMCID: PMC11277088 DOI: 10.3390/ijms25147669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Knowledge of the molecular mechanisms that underlie the regulation of major adaptive responses to an unbalanced oxygen tension is central to understanding tissue homeostasis and disease. Hypoxia-inducible transcription factors (HIFs) coordinate changes in the transcriptome that control these adaptive responses. Here, we focused on the functional role of the transcriptional repressor basic-helix-loop-helix family member e40 (Bhlhe40), which we previously identified in a meta-analysis as one of the most consistently upregulated genes in response to hypoxia across various cell types. We investigated the role of Bhlhe40 in controlling proliferation and angiogenesis using a gene editing strategy in mouse embryonic stem cells (mESCs) that we differentiated in embryoid bodies (EBs). We observed that hypoxia-induced Bhlhe40 expression was compatible with the rapid proliferation of pluripotent mESCs under low oxygen tension. However, in EBs, hypoxia triggered a Bhlhe40-dependent cell cycle arrest in most progenitor cells and endothelial cells within vascular structures. Furthermore, Bhlhe40 knockout increased the basal vascularization of the EBs in normoxia and exacerbated the hypoxia-induced vascularization, supporting a novel role for Bhlhe40 as a negative regulator of blood vessel formation. Our findings implicate Bhlhe40 in mediating key functional adaptive responses to hypoxia, such as proliferation arrest and angiogenesis.
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Affiliation(s)
- Bárbara Acosta-Iborra
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
| | - Ana Isabel Gil-Acero
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
| | - Marta Sanz-Gómez
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
| | - Yosra Berrouayel
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
| | - Laura Puente-Santamaría
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
- Biocomputing Unit, Instituto Aragonés de Ciencias de la Salud, San Juan Bosco, 50009 Zaragoza, Spain
| | - Maria Alieva
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
| | - Luis del Peso
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Unidad Asociada de Biomedicina CSIC-UCLM, 02006 Albacete, Spain
| | - Benilde Jiménez
- Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Arturo Duperier, 4, 28029 Madrid, Spain
- IdiPaz, Instituto de Investigación Sanitaria del Hospital Universitario La Paz, 28029 Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Unidad Asociada de Biomedicina CSIC-UCLM, 02006 Albacete, Spain
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3
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Eng JWL, Kato Y, Adachi Y, Swaminathan B, Naiche L, Vadakath R, Sakamoto Y, Nakazawa Y, Tachino S, Ito K, Abe T, Minoshima Y, Hoshino-Negishi K, Ogasawara H, Kawakatsu T, Nishimura M, Katayama M, Shimizu M, Tahara K, Sato T, Suzuki K, Agarwala K, Iwata M, Nomoto K, Ozawa Y, Imai T, Funahashi Y, Matsui J, Kitajewski J. Inhibition of Notch4 Using Novel Neutralizing Antibodies Reduces Tumor Growth in Murine Cancer Models by Targeting the Tumor Endothelium. CANCER RESEARCH COMMUNICATIONS 2024; 4:1881-1893. [PMID: 38984877 PMCID: PMC11289863 DOI: 10.1158/2767-9764.crc-24-0081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/05/2024] [Accepted: 07/08/2024] [Indexed: 07/11/2024]
Abstract
Endothelial Notch signaling is critical for tumor angiogenesis. Notch1 blockade can interfere with tumor vessel function but causes tissue hypoxia and gastrointestinal toxicity. Notch4 is primarily expressed in endothelial cells, where it may promote angiogenesis; however, effective therapeutic targeting of Notch4 has not been successful. We developed highly specific Notch4-blocking antibodies, 6-3-A6 and humanized E7011, allowing therapeutic targeting of Notch4 to be assessed in tumor models. Notch4 was expressed in tumor endothelial cells in multiple cancer models, and endothelial expression was associated with response to E7011/6-3-A6. Anti-Notch4 treatment significantly delayed tumor growth in mouse models of breast, skin, and lung cancers. Enhanced tumor inhibition occurred when anti-Notch4 treatment was used in combination with chemotherapeutics. Endothelial transcriptomic analysis of murine breast tumors treated with 6-3-A6 identified significant changes in pathways of vascular function but caused only modest change in canonical Notch signaling. Analysis of early and late treatment timepoints revealed significant differences in vessel area and perfusion in response to anti-Notch4 treatment. We conclude that targeting Notch4 improves tumor growth control through endothelial intrinsic mechanisms. SIGNIFICANCE A first-in-class anti-Notch4 agent, E7011, demonstrates strong antitumor effects in murine tumor models including breast carcinoma. Endothelial Notch4 blockade reduces perfusion and vessel area.
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Affiliation(s)
- Jason W.-L. Eng
- Division of Gastroenterology and Hepatology, Department of Medicine, College of Medicine, University of Illinois Chicago, Chicago, Illinois.
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, Illinois.
| | - Yu Kato
- Eisai Co., Ltd, Tsukuba, Japan.
| | | | - Bhairavi Swaminathan
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, Illinois.
| | - L.A. Naiche
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, Illinois.
| | - Rahul Vadakath
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, Illinois.
| | | | | | | | - Ken Ito
- Eisai Co., Ltd, Tsukuba, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jan Kitajewski
- Department of Physiology and Biophysics, College of Medicine, University of Illinois Chicago, Chicago, Illinois.
- University of Illinois Cancer Center, Chicago, Illinois.
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4
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Abbey CA, Duran CL, Chen Z, Chen Y, Roy S, Coffell A, Sveeggen TM, Chakraborty S, Wells GB, Chang J, Bayless KJ. Identification of New Markers of Angiogenic Sprouting Using Transcriptomics: New Role for RND3. Arterioscler Thromb Vasc Biol 2024; 44:e145-e167. [PMID: 38482696 PMCID: PMC11043006 DOI: 10.1161/atvbaha.123.320599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/28/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND New blood vessel formation requires endothelial cells to transition from a quiescent to an invasive phenotype. Transcriptional changes are vital for this switch, but a comprehensive genome-wide approach focused exclusively on endothelial cell sprout initiation has not been reported. METHODS Using a model of human endothelial cell sprout initiation, we developed a protocol to physically separate cells that initiate the process of new blood vessel formation (invading cells) from noninvading cells. We used this model to perform multiple transcriptomics analyses from independent donors to monitor endothelial gene expression changes. RESULTS Single-cell population analyses, single-cell cluster analyses, and bulk RNA sequencing revealed common transcriptomic changes associated with invading cells. We also found that collagenase digestion used to isolate single cells upregulated the Fos proto-oncogene transcription factor. Exclusion of Fos proto-oncogene expressing cells revealed a gene signature consistent with activation of signal transduction, morphogenesis, and immune responses. Many of the genes were previously shown to regulate angiogenesis and included multiple tip cell markers. Upregulation of SNAI1 (snail family transcriptional repressor 1), PTGS2 (prostaglandin synthase 2), and JUNB (JunB proto-oncogene) protein expression was confirmed in invading cells, and silencing JunB and SNAI1 significantly reduced invasion responses. Separate studies investigated rounding 3, also known as RhoE, which has not yet been implicated in angiogenesis. Silencing rounding 3 reduced endothelial invasion distance as well as filopodia length, fitting with a pathfinding role for rounding 3 via regulation of filopodial extensions. Analysis of in vivo retinal angiogenesis in Rnd3 heterozygous mice confirmed a decrease in filopodial length compared with wild-type littermates. CONCLUSIONS Validation of multiple genes, including rounding 3, revealed a functional role for this gene signature early in the angiogenic process. This study expands the list of genes associated with the acquisition of a tip cell phenotype during endothelial cell sprout initiation.
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Affiliation(s)
- Colette A. Abbey
- Texas A&M Health, Department of Medical Physiology, Texas A&M School of Medicine, Bryan TX
- Department of Molecular & Cellular Medicine, Texas A&M School of Medicine, Bryan, TX
| | - Camille L. Duran
- Department of Molecular & Cellular Medicine, Texas A&M School of Medicine, Bryan, TX
| | - Zhishi Chen
- Center for Genomic and Precision Medicine, Institute of Biosciences and Technology, Houston, TX
| | - Yanping Chen
- Center for Genomic and Precision Medicine, Institute of Biosciences and Technology, Houston, TX
| | - Sukanya Roy
- Texas A&M Health, Department of Medical Physiology, Texas A&M School of Medicine, Bryan TX
| | - Ashley Coffell
- Department of Molecular & Cellular Medicine, Texas A&M School of Medicine, Bryan, TX
| | - Timothy M. Sveeggen
- Department of Molecular & Cellular Medicine, Texas A&M School of Medicine, Bryan, TX
| | - Sanjukta Chakraborty
- Texas A&M Health, Department of Medical Physiology, Texas A&M School of Medicine, Bryan TX
| | - Gregg B. Wells
- Department of Molecular & Cellular Medicine, Texas A&M School of Medicine, Bryan, TX
- Department of Cell Biology and Genetics, Texas A&M School of Medicine, Bryan, TX
| | - Jiang Chang
- Center for Genomic and Precision Medicine, Institute of Biosciences and Technology, Houston, TX
| | - Kayla J. Bayless
- Texas A&M Health, Department of Medical Physiology, Texas A&M School of Medicine, Bryan TX
- Department of Molecular & Cellular Medicine, Texas A&M School of Medicine, Bryan, TX
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Ke X, Xia S, Yu W, Mabry S, Fu Q, Menden HL, Sampath V, Lane RH. Delta like 4 regulates cerebrovascular development and endothelial integrity via DLL4-NOTCH-CLDN5 pathway and is vulnerable to neonatal hyperoxia. J Physiol 2024; 602:2265-2285. [PMID: 38632887 DOI: 10.1113/jp285716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 03/19/2024] [Indexed: 04/19/2024] Open
Abstract
The mechanisms governing brain vascularization during development remain poorly understood. A key regulator of developmental vascularization is delta like 4 (DLL4), a Notch ligand prominently expressed in endothelial cells (EC). Exposure to hyperoxia in premature infants can disrupt the development and functions of cerebral blood vessels and lead to long-term cognitive impairment. However, its role in cerebral vascular development and the impact of postnatal hyperoxia on DLL4 expression in mouse brain EC have not been explored. We determined the DLL4 expression pattern and its downstream signalling gene expression in brain EC using Dll4+/+ and Dll4+/LacZ mice. We also performed in vitro studies using human brain microvascular endothelial cells. Finally, we determined Dll4 and Cldn5 expression in mouse brain EC exposed to postnatal hyperoxia. DLL4 is expressed in various cell types, with EC being the predominant one in immature brains. Moreover, DLL4 deficiency leads to persistent abnormalities in brain microvasculature and increased vascular permeability both in vivo and in vitro. We have identified that DLL4 insufficiency compromises endothelial integrity through the NOTCH-NICD-RBPJ-CLDN5 pathway, resulting in the downregulation of the tight junction protein claudin 5 (CLDN5). Finally, exposure to neonatal hyperoxia reduces DLL4 and CLDN5 expression in developing mouse brain EC. We reveal that DLL4 is indispensable for brain vascular development and maintaining the blood-brain barrier's function and is repressed by neonatal hyperoxia. We speculate that reduced DLL4 signalling in brain EC may contribute to the impaired brain development observed in neonates exposed to hyperoxia. KEY POINTS: The role of delta like 4 (DLL4), a Notch ligand in vascular endothelial cells, in brain vascular development and functions remains unknown. We demonstrate that DLL4 is expressed at a high level during postnatal brain development in immature brains and DLL4 insufficiency leads to abnormal cerebral vasculature and increases vascular permeability both in vivo and in vitro. We identify that DLL4 regulates endothelial integrity through NOTCH-NICD-RBPJ-CLDN5 signalling. Dll4 and Cldn5 expression are decreased in mouse brain endothelial cells exposed to postnatal hyperoxia.
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Affiliation(s)
- Xingrao Ke
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Sheng Xia
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Wei Yu
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Sherry Mabry
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Qi Fu
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Heather L Menden
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Venkatesh Sampath
- Department of Pediatrics Division of Neonatology, Children's Mercy, Kansas City, MO, USA
| | - Robert H Lane
- Department of Administration, Children Mercy Research Institute, Children's Mercy, Kansas City, MO, USA
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6
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Sunshine HL, Cicchetto AC, Kaczor-Urbanowicz KE, Ma F, Pi D, Symons C, Turner M, Shukla V, Christofk HR, Vallim TA, Iruela-Arispe ML. Endothelial Jagged1 levels and distribution are post-transcriptionally controlled by ZFP36 decay proteins. Cell Rep 2024; 43:113627. [PMID: 38157296 PMCID: PMC10884959 DOI: 10.1016/j.celrep.2023.113627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 11/02/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
Vascular morphogenesis requires a delicate gradient of Notch signaling controlled, in part, by the distribution of ligands (Dll4 and Jagged1). How Jagged1 (JAG1) expression is compartmentalized in the vascular plexus remains unclear. Here, we show that Jag1 mRNA is a direct target of zinc-finger protein 36 (ZFP36), an RNA-binding protein involved in mRNA decay that we find robustly induced by vascular endothelial growth factor (VEGF). Endothelial cells lacking ZFP36 display high levels of JAG1 and increase angiogenic sprouting in vitro. Furthermore, mice lacking Zfp36 in endothelial cells display mispatterned and increased levels of JAG1 in the developing retinal vascular plexus. Abnormal levels of JAG1 at the sprouting front alters NOTCH1 signaling, increasing the number of tip cells, a phenotype that is rescued by imposing haploinsufficiency of Jag1. Our findings reveal an important feedforward loop whereby VEGF stimulates ZFP36, consequently suppressing Jag1 to enable adequate levels of Notch signaling during sprouting angiogenesis.
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Affiliation(s)
- Hannah L Sunshine
- Molecular, Cellular, and Integrative Physiology Graduate Program, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Cell and Development Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Andrew C Cicchetto
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Karolina Elżbieta Kaczor-Urbanowicz
- Center for Oral and Head/Neck Oncology Research, UCLA Biosystems & Function, UCLA School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095-1668, USA; UCLA Section of Orthodontics, UCLA School of Dentistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; UCLA Institute for Quantitative and Computational Biosciences, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Feiyang Ma
- Department of Cell and Development Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Danielle Pi
- Department of Cell and Development Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Chloe Symons
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Martin Turner
- Immunology Programme, The Babraham Institute, CB22 3AT Cambridge, UK
| | - Vipul Shukla
- Department of Cell and Development Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Center for Human Immunobiology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Heather R Christofk
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095-1606, USA
| | - Thomas A Vallim
- Department of Biological Chemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095-1606, USA
| | - M Luisa Iruela-Arispe
- Department of Cell and Development Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA; Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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7
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Deering J, Lin DSY, D'Elia A, Zhang B, Grandfield K. Fabrication of succinate-alginate xerogel films for in vitro coupling of osteogenesis and neovascularization. BIOMATERIALS ADVANCES 2022; 141:213122. [PMID: 36162345 DOI: 10.1016/j.bioadv.2022.213122] [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: 04/22/2022] [Revised: 08/30/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
The osseointegration of metallic implants is reliant on a cascade of molecular interactions and the delivery of macromolecules to the implant environment that occurs before substantial bone formation. Early blood vessel formation is a requisite first step in the healing timeline for osteoid formation, where vascular development can be accelerated as a result of controlled hypoxic conditioning. In this study, alginate-derived xerogel films containing varied concentrations of disodium succinate salt which has been shown to induce pseudohypoxia (short-term hypoxic effects while maintaining an oxygenated environment) were developed. Xerogels were characterized for their morphology, succinate release over time and cellular response with osteoblast-mimicking Saos-2 and human umbilical vein endothelial cells (HUVEC). Scanning electron microscopy revealed a multiscale topography that may favour osseointegration and alamarBlue assays indicated no cytotoxic effects during in vitro proliferation of Saos-2 cells. pH measurements of eluted succinate reach 95 % of peak value after 7 h of immersion for all gels containing 10 mM of succinate or less, and 60 % within the first 40 min. In vitro exposure of HUVECs to succinate-conditioned media increased the net concentration of total proteins measured by bicinchoninic acid (BCA) assay and maintains stable vascular endothelial growth factor (VEGF) and extracellular platelet-derived growth factor (PDGF) for vessel formation through comparison of enzyme-linked immunosorbent assays (ELISAs) of the culture media and cell lysate. Tube formation assays also showed a sustained increase in tube diameter across the first 48 h of HUVEC culture when succinate concentrations of 1 and 10 μM in the xerogel. Overall, the succinate-alginate films serve as a prospective organic coating for bone-interfacing implant materials which may induce temporary pseudohypoxic conditions favourable for early angiogenesis and bone regeneration in vivo at succinate concentrations of 1 or 10 μM.
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Affiliation(s)
- Joseph Deering
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada
| | - Dawn S Y Lin
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Andrew D'Elia
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada
| | - Boyang Zhang
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada; School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
| | - Kathryn Grandfield
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON, Canada; School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada; Brockhouse Institute for Materials Research, McMaster University, Hamilton, ON, Canada.
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8
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Gómez-Gálvez P, Vicente-Munuera P, Anbari S, Tagua A, Gordillo-Vázquez C, Andrés-San Román JA, Franco-Barranco D, Palacios AM, Velasco A, Capitán-Agudo C, Grima C, Annese V, Arganda-Carreras I, Robles R, Márquez A, Buceta J, Escudero LM. A quantitative biophysical principle to explain the 3D cellular connectivity in curved epithelia. Cell Syst 2022; 13:631-643.e8. [PMID: 35835108 DOI: 10.1016/j.cels.2022.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 02/15/2022] [Accepted: 06/15/2022] [Indexed: 01/26/2023]
Abstract
Epithelial cell organization and the mechanical stability of tissues are closely related. In this context, it has been recently shown that packing optimization in bended or folded epithelia is achieved by an energy minimization mechanism that leads to a complex cellular shape: the "scutoid". Here, we focus on the relationship between this shape and the connectivity between cells. We use a combination of computational, experimental, and biophysical approaches to examine how energy drivers affect the three-dimensional (3D) packing of tubular epithelia. We propose an energy-based stochastic model that explains the 3D cellular connectivity. Then, we challenge it by experimentally reducing the cell adhesion. As a result, we observed an increment in the appearance of scutoids that correlated with a decrease in the energy barrier necessary to connect with new cells. We conclude that tubular epithelia satisfy a quantitative biophysical principle that links tissue geometry and energetics with the average cellular connectivity.
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Affiliation(s)
- Pedro Gómez-Gálvez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain.
| | - Pablo Vicente-Munuera
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Samira Anbari
- Chemical and Biomolecular Engineering Department, Lehigh University, Bethlehem, PA 18018, USA
| | - Antonio Tagua
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Carmen Gordillo-Vázquez
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Jesús A Andrés-San Román
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Daniel Franco-Barranco
- Department of Computer Science and Artificial Intelligence, University of the Basque Country (UPV/EHU), San Sebastian, Spain; Donostia International Physics Center (DIPC), San Sebastian, Spain
| | - Ana M Palacios
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Antonio Velasco
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain
| | - Carlos Capitán-Agudo
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain
| | - Clara Grima
- Departamento de Matemática Aplicada I, Universidad de Sevilla, Seville 41012, Spain
| | - Valentina Annese
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Ignacio Arganda-Carreras
- Department of Computer Science and Artificial Intelligence, University of the Basque Country (UPV/EHU), San Sebastian, Spain; Donostia International Physics Center (DIPC), San Sebastian, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Rafael Robles
- Departamento de Matemática Aplicada I, Universidad de Sevilla, Seville 41012, Spain
| | - Alberto Márquez
- Departamento de Matemática Aplicada I, Universidad de Sevilla, Seville 41012, Spain
| | - Javier Buceta
- Institute for Integrative Systems Biology (I2SysBio), CSIC-UV, Paterna 46980, Spain.
| | - Luis M Escudero
- Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla and Departamento de Biología Celular, Universidad de Sevilla, 41013 Seville, Spain; Biomedical Network Research Centre on Neurodegenerative Diseases (CIBERNED), Madrid, Spain.
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9
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Angiogenesis and Functional Vessel Formation Induced by Interstitial Flow and Vascular Endothelial Growth Factor Using a Microfluidic Chip. MICROMACHINES 2022; 13:mi13020225. [PMID: 35208349 PMCID: PMC8876009 DOI: 10.3390/mi13020225] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 02/07/2023]
Abstract
Angiogenesis occurs during both physiological and pathological processes. In this study, a microfluidic chip for the development of angiogenesis was utilized to assess angiogenic sprouting and functional vessel formation. We also found that vascular endothelial growth factor (VEGF) was a determinant of the initiation of vascular sprouts, while the direction of these sprouts was greatly influenced by interstitial flow. Isoforms of VEGF such as VEGF121, VEGF165, and VEGF189 displayed different angiogenic properties on the chip as assessed by sprout length and number, vessel perfusion, and connectivity. VEGF165 had the highest capacity to induce vascular sprouting among the three isoforms assessed and furthermore, also induced functional vessel formation. This chip could be used to analyze the effect of different angiogenic factors and drugs, as well as to explore the mechanism of angiogenesis induced by such factors.
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10
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Guan Y, Liu J, Gu Y, Ji X. Effects of Hypoxia on Cerebral Microvascular Angiogenesis: Benefits or Damages? Aging Dis 2022; 14:370-385. [PMID: 37008044 PMCID: PMC10017152 DOI: 10.14336/ad.2022.0902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/02/2022] [Indexed: 11/18/2022] Open
Abstract
Cerebrovascular microcirculation is essential for maintaining the physiological functions of the brain. The brain can be protected from stress injury by remodeling the microcirculation network. Angiogenesis is a type of cerebral vascular remodeling. It is an effective approach to improve the blood flow of the cerebral microcirculation, which is necessary for preventing and treating various neurological disorders. Hypoxia is one of the most important regulators of angiogenesis, affecting the sprouting, proliferation, and maturation stages of angiogenesis. Moreover, hypoxia negatively affects cerebral vascular tissue by impairing the structural and functional integrity of the blood-brain barrier and vascular-nerve decoupling. Therefore, hypoxia has a dual effect on blood vessels and is affected by confounding factors including oxygen concentration, hypoxia duration, and hypoxia frequency and extent. Establishing an optimal model that promotes cerebral microvasculogenesis without causing vascular injury is essential. In this review, we first elaborate on the effects of hypoxia on blood vessels from two different perspectives: (1) the promotion of angiogenesis and (2) cerebral microcirculation damage. We further discuss the factors influencing the dual role of hypoxia and emphasize the benefits of moderate hypoxic irritation and its potential application as an easy, safe, and effective treatment for multiple nervous system disorders.
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Affiliation(s)
- Yuying Guan
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, China
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jia Liu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, China
| | - Yakun Gu
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, China
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Beijing Advanced Innovation Center for Big Data-based Precision Medicine, Capital Medical University, Beijing, China
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- Correspondence should be addressed to: Dr. Prof. Xunming Ji; Beijing Institute of Brain Disorders, Capital Medical University, 10 Xi Tou Tiao, You Anmen, Beijing 100069, China. E-mail: .
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11
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Kant RJ, Bare CF, Coulombe KL. Tissues with Patterned Vessels or Protein Release Induce Vascular Chemotaxis in an In Vitro Platform. Tissue Eng Part A 2021; 27:1290-1304. [PMID: 33472529 PMCID: PMC8610033 DOI: 10.1089/ten.tea.2020.0269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 01/11/2021] [Indexed: 12/14/2022] Open
Abstract
Engineered tissues designed for translational applications in regenerative medicine require vascular networks to deliver oxygen and nutrients rapidly to the implanted cells. A limiting factor of in vivo translation is the rapid and successful inosculation, or connection, of host and implanted vascular networks and subsequent perfusion of the implant. An approach gaining favor in vascular tissue engineering is to provide instructive cues from the engineered tissue to enhance host vascular penetration and connection with the implant. Here, we use a novel in vitro platform based on the aortic ring assay to evaluate the impact of patterned, endothelialized vessels or growth factor release from engineered constructs on preinosculative vascular cell outgrowth from surrogate host tissue in a controlled, defined environment, and introduce robust tools for evaluating vascular morphogenesis and chemotaxis. We demonstrate the creation of engineered vessels at the arteriole scale, which develop basement membrane, exhibit tight junctions, and actively sprout into the surrounding bulk hydrogel. Vessel-containing constructs are co-cultured adjacent to rodent aortic rings, and the resulting heterocellular outgrowth is quantified. Cells originating from the aortic ring migrate preferentially toward constructs containing engineered vessels with 1.5-fold faster outgrowth kinetics, 2.5-fold increased cellular density, and 1.6-fold greater network formation versus control (no endothelial cells and growth factor-reduced culture medium). Growth factor release from constructs with nonendothelialized channels and in reduced factor medium equivalently stimulates sustained vascular outgrowth distance, cellular density, and network formation, akin to engineered vessels in endothelial growth medium 2 (EGM-2) medium. In conclusion, we show that three-dimensional endothelialized patterned vessels or growth factor release stimulate a robust, host-derived vascular cell chemotactic response at early time points critical for instructive angiogenic cues. Further, we developed robust, unbiased tools to quantify metrics of vascular morphogenesis and preinosculative heterocellular outgrowth from rat aortic rings and demonstrated the utility of our complex, controlled environment, heterocellular in vitro platform. Impact statement Using a novel in vitro platform, we show that engineered constructs with patterned vessels or angiogenic growth factor release, two methods of instructing host revascularization responses, equivalently improve early host-derived vascular outgrowth. Our platform leverages the aortic ring assay in a tissue engineering context to study preinosculative vascular cell chemotaxis from surrogate host vascular cells in response to paracrine cues from co-cultured engineered tissues using robust, open-source quantification tools. Our accessible and flexible platform enables translationally focused studies in revascularization using implantable therapeutics containing prepatterned vessels with greater environmental control than in vivo studies to advance vascular tissue engineering.
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Affiliation(s)
- Rajeev J. Kant
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
| | - Colette F. Bare
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
| | - Kareen L.K. Coulombe
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, Rhode Island, USA
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12
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Wälchli T, Bisschop J, Miettinen A, Ulmann-Schuler A, Hintermüller C, Meyer EP, Krucker T, Wälchli R, Monnier PP, Carmeliet P, Vogel J, Stampanoni M. Hierarchical imaging and computational analysis of three-dimensional vascular network architecture in the entire postnatal and adult mouse brain. Nat Protoc 2021; 16:4564-4610. [PMID: 34480130 DOI: 10.1038/s41596-021-00587-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 06/08/2021] [Indexed: 02/08/2023]
Abstract
The formation of new blood vessels and the establishment of vascular networks are crucial during brain development, in the adult healthy brain, as well as in various diseases of the central nervous system. Here, we describe a step-by-step protocol for our recently developed method that enables hierarchical imaging and computational analysis of vascular networks in postnatal and adult mouse brains. The different stages of the procedure include resin-based vascular corrosion casting, scanning electron microscopy, synchrotron radiation and desktop microcomputed tomography imaging, and computational network analysis. Combining these methods enables detailed visualization and quantification of the 3D brain vasculature. Network features such as vascular volume fraction, branch point density, vessel diameter, length, tortuosity and directionality as well as extravascular distance can be obtained at any developmental stage from the early postnatal to the adult brain. This approach can be used to provide a detailed morphological atlas of the entire mouse brain vasculature at both the postnatal and the adult stage of development. Our protocol allows the characterization of brain vascular networks separately for capillaries and noncapillaries. The entire protocol, from mouse perfusion to vessel network analysis, takes ~10 d.
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Affiliation(s)
- Thomas Wälchli
- Group of CNS Angiogenesis and Neurovascular Link, Neuroscience Center Zurich, and Division of Neurosurgery, University and University Hospital Zurich, Zurich, Switzerland.
- Division of Neurosurgery, University Hospital Zurich, Zurich, Switzerland.
- Group Brain Vasculature and Perivascular Niche, Division of Experimental and Translational Neuroscience, Krembil Brain Institute, Krembil Research Institute, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada.
- Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada.
| | - Jeroen Bisschop
- Group of CNS Angiogenesis and Neurovascular Link, Neuroscience Center Zurich, and Division of Neurosurgery, University and University Hospital Zurich, Zurich, Switzerland
- Division of Neurosurgery, University Hospital Zurich, Zurich, Switzerland
- Group Brain Vasculature and Perivascular Niche, Division of Experimental and Translational Neuroscience, Krembil Brain Institute, Krembil Research Institute, Toronto Western Hospital, University Health Network, University of Toronto, Toronto, Ontario, Canada
- Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Arttu Miettinen
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
- Department of Physics, University of Jyväskylä, Jyväskylä, Finland
| | | | | | - Eric P Meyer
- Institute of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Thomas Krucker
- Novartis Institutes for BioMedical Research Inc, Emeryville, CA, USA
| | - Regula Wälchli
- Department of Dermatology, Pediatric Skin Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Philippe P Monnier
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Krembil Research Institute, Vision Division, Krembil Discovery Tower, Toronto, Ontario, Canada
- Department of Ophthalmology and Vision Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology, KU Leuven, Leuven, Belgium
- Laboratory of Angiogenesis and Vascular Metabolism, VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Johannes Vogel
- Institute of Veterinary Physiology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Marco Stampanoni
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
- Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland
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13
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Lin PK, Salvador J, Xie J, Aguera KN, Koller GM, Kemp SS, Griffin CT, Davis GE. Selective and Marked Blockade of Endothelial Sprouting Behavior Using Paclitaxel and Related Pharmacologic Agents. THE AMERICAN JOURNAL OF PATHOLOGY 2021; 191:2245-2264. [PMID: 34563512 DOI: 10.1016/j.ajpath.2021.08.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/10/2021] [Accepted: 08/26/2021] [Indexed: 12/11/2022]
Abstract
Whether alterations in the microtubule cytoskeleton affect the ability of endothelial cells (ECs) to sprout and form branching networks of tubes was investigated in this study. Bioassays of human EC tubulogenesis, where both sprouting behavior and lumen formation can be rigorously evaluated, were used to demonstrate that addition of the microtubule-stabilizing drugs, paclitaxel, docetaxel, ixabepilone, and epothilone B, completely interferes with EC tip cells and sprouting behavior, while allowing for EC lumen formation. In bioassays mimicking vasculogenesis using single or aggregated ECs, these drugs induce ring-like lumens from single cells or cyst-like spherical lumens from multicellular aggregates with no evidence of EC sprouting behavior. Remarkably, treatment of these cultures with a low dose of the microtubule-destabilizing drug, vinblastine, led to an identical result, with complete blockade of EC sprouting, but allowing for EC lumen formation. Administration of paclitaxel in vivo markedly interfered with angiogenic sprouting behavior in developing mouse retina, providing corroboration. These findings reveal novel biological activities for pharmacologic agents that are widely utilized in multidrug chemotherapeutic regimens for the treatment of human malignant cancers. Overall, this work demonstrates that manipulation of microtubule stability selectively interferes with the ability of ECs to sprout, a necessary step to initiate and form branched capillary tube networks.
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Affiliation(s)
- Prisca K Lin
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, Florida
| | - Jocelynda Salvador
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, Florida
| | - Jun Xie
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Kalia N Aguera
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, Florida
| | - Gretchen M Koller
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, Florida
| | - Scott S Kemp
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, Florida
| | - Courtney T Griffin
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma; Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - George E Davis
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida School of Medicine, Tampa, Florida.
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14
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Tang M, Park SH, Petri S, Yu H, Rueda CB, Abel ED, Kim CY, Hillman EM, Li F, Lee Y, Ding L, Jagadish S, Frankel WN, De Vivo DC, Monani UR. An early endothelial cell-specific requirement for Glut1 is revealed in Glut1 deficiency syndrome model mice. JCI Insight 2021; 6:145789. [PMID: 33351789 PMCID: PMC7934852 DOI: 10.1172/jci.insight.145789] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 12/10/2020] [Indexed: 12/30/2022] Open
Abstract
Paucity of the glucose transporter-1 (Glut1) protein resulting from haploinsufficiency of the SLC2A1 gene arrests cerebral angiogenesis and disrupts brain function to cause Glut1 deficiency syndrome (Glut1 DS). Restoring Glut1 to Glut1 DS model mice prevents disease, but the precise cellular sites of action of the transporter, its temporal requirements, and the mechanisms linking scarcity of the protein to brain cell dysfunction remain poorly understood. Here, we show that Glut1 functions in a cell-autonomous manner in the cerebral microvasculature to affect endothelial tip cells and, thus, brain angiogenesis. Moreover, brain endothelial cell–specific Glut1 depletion not only triggers a severe neuroinflammatory response in the Glut1 DS brain, but also reduces levels of brain-derived neurotrophic factor (BDNF) and causes overt disease. Reduced BDNF correlated with fewer neurons in the Glut1 DS brain. Controlled depletion of the protein demonstrated that brain pathology and disease severity was greatest when Glut1 scarcity was induced neonatally, during brain angiogenesis. Reducing Glut1 at later stages had mild or little effect. Our results suggest that targeting brain endothelial cells during early development is important to ensure proper brain angiogenesis, prevent neuroinflammation, maintain BDNF levels, and preserve neuron numbers. This requirement will be essential for any disease-modifying therapeutic strategy for Glut1 DS.
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Affiliation(s)
- Maoxue Tang
- Department of Neurology and.,Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, USA
| | - Sarah H Park
- Department of Neurology and.,Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, USA
| | - Sabrina Petri
- Department of Genetics & Development and the Institute for Genomic Medicine, Columbia University, New York, New York, USA
| | - Hang Yu
- Departments of Biomedical Engineering and Radiology, Mortimer B. Zuckerman Mind Brain Behavior Institute and Kavli Institute for Brain Science, Columbia University, New York, New York, USA
| | - Carlos B Rueda
- Department of Neurology and.,Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, USA
| | - E Dale Abel
- Fraternal Order of Eagles Diabetes Research Center and Division of Endocrinology and Metabolism, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Carla Y Kim
- Departments of Biomedical Engineering and Radiology, Mortimer B. Zuckerman Mind Brain Behavior Institute and Kavli Institute for Brain Science, Columbia University, New York, New York, USA
| | - Elizabeth Mc Hillman
- Departments of Biomedical Engineering and Radiology, Mortimer B. Zuckerman Mind Brain Behavior Institute and Kavli Institute for Brain Science, Columbia University, New York, New York, USA
| | - Fanghua Li
- Department of Neurology and.,Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, USA
| | - Yeojin Lee
- Columbia Stem Cell Initiative and Department of Microbiology & Immunology, Columbia University Irving Medical Center, New York, New York, USA
| | - Lei Ding
- Columbia Stem Cell Initiative and Department of Microbiology & Immunology, Columbia University Irving Medical Center, New York, New York, USA
| | - Smitha Jagadish
- Rare & Neurological Diseases Research, Sanofi Genzyme, Framingham, Massachusetts, USA
| | - Wayne N Frankel
- Department of Genetics & Development and the Institute for Genomic Medicine, Columbia University, New York, New York, USA
| | - Darryl C De Vivo
- Department of Neurology and.,Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, USA
| | - Umrao R Monani
- Department of Neurology and.,Center for Motor Neuron Biology and Disease, Columbia University Irving Medical Center, New York, New York, USA.,Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
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15
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Habu T, Harada KH. UBC13 is an RNF213-associated E2 ubiquitin-conjugating enzyme, and Lysine 63-linked ubiquitination by the RNF213-UBC13 axis is responsible for angiogenic activity. FASEB Bioadv 2021; 3:243-258. [PMID: 33842849 PMCID: PMC8019261 DOI: 10.1096/fba.2019-00092] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/26/2020] [Accepted: 12/30/2020] [Indexed: 12/13/2022] Open
Abstract
Moyamoya disease (MMD) is a cryptogenic vascular disorder in the intracranial arteries. RING protein 213 (RNF213) is the susceptibility gene for MMD, and encodes a RING domain and a Walker motif. Herein, we identified UBC13 (UBE2N) as an E2 ubiquitin‐conjugating enzyme for RNF213 E3 ubiquitin ligase by yeast two‐hybrid screening with a fragment containing RNF213 RING domain as bait, and the immunocomplex of RNF213‐UBC13 was detected in vivo. Analysis of the ubiquitin chain on RNF213 by monitoring autoubiquitination showed that RNF213 was autoubiquitinated in a K63 chain fashion, but not in a K48 chain fashion. Finally, this RNF213 ubiquitination in a UBC13‐dependent manner was required for cell mobility and invasion activity for HUVEC cells in UBC13 knock‐down and ubiquitination‐dead RNF213 mutant expressing experiments. These findings demonstrated that RNF213 is a K63‐linked E3 ubiquitin ligase, and UBC13 is responsible for RNF213 dependent ubiquitination. The RNF213‐UBC13 axis may be associated with angiogenic activity and MMD.
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Affiliation(s)
- Toshiyuki Habu
- Department of Food Sciences and Nutrition School of Food Sciences and Nutrition Mukogawa Women's University Nishinomiya Hyogo Japan
| | - Kouji H Harada
- Department of Health and Environmental Sciences Kyoto University Graduate School of Medicine Kyoto Japan
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16
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Zheng X, Hermann DM, Bähr M, Doeppner TR. The role of small extracellular vesicles in cerebral and myocardial ischemia-Molecular signals, treatment targets, and future clinical translation. Stem Cells 2021; 39:403-413. [PMID: 33432732 DOI: 10.1002/stem.3329] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 12/09/2020] [Accepted: 12/13/2020] [Indexed: 12/17/2022]
Abstract
The heart and the brain mutually interact with each other, forming a functional axis that is disturbed under conditions of ischemia. Stem cell-derived extracellular vesicles (EVs) show great potential for the treatment of ischemic stroke and myocardial infarction. Due to heart-brain interactions, therapeutic actions of EVs in the brain and the heart cannot be regarded in an isolated way. Effects in each of the two organs reciprocally influence the outcome of the other. Stem cell-derived EVs modulate a large number of signaling pathways in both tissues. Upon ischemia, EVs prevent delayed injury, promote angiogenesis, enhance parenchymal remodeling, and enable functional tissue recovery. The therapeutic effects greatly depend on EV cargos, among which are noncoding RNAs like microRNAs (miRNAs) and proteins, which modulate cell signaling in a differential way that not always corresponds to each other in the two tissues. Interestingly, the same miRNA or protein localized in EVs can modulate different signaling pathways in the ischemic heart and brain, which may have diverse consequences for disease outcomes. Paying careful attention to unveiling these underlying mechanisms may provide new insights into tissue remodeling processes and identify targets for ischemic stroke and myocardial infarction therapies. Some of these mechanisms are discussed in this concise review, and consequences for the clinical translation of EVs are presented.
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Affiliation(s)
- Xuan Zheng
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
| | - Dirk M Hermann
- Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Mathias Bähr
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
| | - Thorsten R Doeppner
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
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17
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Ding MH, Lozoya EG, Rico RN, Chew SA. The Role of Angiogenesis-Inducing microRNAs in Vascular Tissue Engineering. Tissue Eng Part A 2020; 26:1283-1302. [PMID: 32762306 DOI: 10.1089/ten.tea.2020.0170] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Angiogenesis is an important process in tissue repair and regeneration as blood vessels are integral to supply nutrients to a functioning tissue. In this review, the application of microRNAs (miRNAs) or anti-miRNAs that can induce angiogenesis to aid in blood vessel formation for vascular tissue engineering in ischemic diseases such as peripheral arterial disease and stroke, cardiac diseases, and skin and bone tissue engineering is discussed. Endothelial cells (ECs) form the endothelium of the blood vessel and are recognized as the primary cell type that drives angiogenesis and studied in the applications that were reviewed. Besides ECs, mesenchymal stem cells can also play a pivotal role in these applications, specifically, by secreting growth factors or cytokines for paracrine signaling and/or as constituent cells in the new blood vessel formed. In addition to delivering miRNAs or cells transfected/transduced with miRNAs for angiogenesis and vascular tissue engineering, the utilization of extracellular vesicles (EVs), such as exosomes, microvesicles, and EVs collectively, has been more recently explored. Proangiogenic miRNAs and anti-miRNAs contribute to angiogenesis by targeting the 3'-untranslated region of targets to upregulate proangiogenic factors such as vascular endothelial growth factor (VEGF), basic fibroblast growth factor, and hypoxia-inducible factor-1 and increase the transduction of VEGF signaling through the PI3K/AKT and Ras/Raf/MEK/ERK signaling pathways such as phosphatase and tensin homolog or regulating the signaling of other pathways important for angiogenesis such as the Notch signaling pathway and the pathway to produce nitric oxide. In conclusion, angiogenesis-inducing miRNAs and anti-miRNAs are promising tools for vascular tissue engineering for several applications; however, future work should emphasize optimizing the delivery and usage of these therapies as miRNAs can also be associated with the negative implications of cancer.
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Affiliation(s)
- May-Hui Ding
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA
| | - Eloy G Lozoya
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA
| | - Rene N Rico
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA
| | - Sue Anne Chew
- Department of Health and Biomedical Sciences, University of Texas Rio Grande Valley, Brownsville, Texas, USA
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18
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Perfluoroctanoic acid (PFOA) enhances NOTCH-signaling in an angiogenesis model of placental trophoblast cells. Int J Hyg Environ Health 2020; 229:113566. [PMID: 32485599 DOI: 10.1016/j.ijheh.2020.113566] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/19/2020] [Accepted: 05/19/2020] [Indexed: 01/09/2023]
Abstract
Exposure to perfluoroalkyl substances (PFAS) was found to be associated with several pathological endpoints, including high cholesterol levels, specific defective functions of the immune system and reduced birth weight. While environmental PFAS have been recognized as threats for public health, surprisingly little is known about the underlying mechanisms of toxicity. We hypothesized that some of the observed vascular and developmental effects of environmental PFAS may share a common molecular pathway. At elevated levels of exposure to PFAS, a reduction in mean birth weight of newborns has been observed in combination with a high incidence rate of preeclampsia. As both, preeclampsia and reduced birth weight are consequences of an inadequate placental vascularization, we hypothesized that the adaptation of placental vasculature may get compromised by PFAS. We analyzed pseudo-vascular network formation and protein expression in the HTR8/SVneo cell line, an embryonic trophoblast cell type that is able to form vessel-like vascular networks in 3D-matrices, similar to endothelial cells. PFOA (perfluoroctanoic acid), but not PFOS (perfuoroctanesulfonic acid), induced morphological changes in the vascular 3D-network structure, without indications of compromised cellular viability. Incubation with PFOA reduced cellular sprouting and elongated isolated stalks in pseudo-vascular networks, while a γ-secretase inhibitor BMS-906024 induced directional opposite effects. We found a PFOA-induced increase in NOTCH intracellular domain (NICD) abundance in HTR8/SVneo, indicating that PFOA enhances NOTCH-signaling in this cell type. Enhancement of NOTCH-pathway by PFOA may be a key to understand the mode of action of PFAS, as this pathway is critically involved in many confirmed physiological/toxicological symptoms associated with PFAS exposure.
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19
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Inomata T, Miwa Y, Kawata S, Omotehara T, Sato I, Itoh M. Immunohistochemical study for relationship between vessel and lymphatic properties and tooth marks in human oral mucosa. Eur J Histochem 2020; 64. [PMID: 32214280 PMCID: PMC7058964 DOI: 10.4081/ejh.2020.3095] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 02/17/2020] [Indexed: 11/23/2022] Open
Abstract
Angiogenesis is an important issue related to normal growth and differentiation, and it is a critical issue in the progression of human disease in oral mucosa. Tooth marks occur after clenching the teeth for a long period under muscle tension in the human oral cavity. However, the sites of angiogenesis, cell differentiation and microvessel density are not known for human mucosa with tooth marks. Therefore, we investigated the relationship between the markers of differentiation (Ki-67), angiogenesis (CD31, D2-40, VEGF-A), and marks from teeth in the second molar region using immunohistochemical methods. In addition, we compared these areas with the mucous membrane. Our results revealed blood and lymphoid vessels in irregular mucosa structures, and the vessels in the oral mucosa were observed in three types of samples: dentulous, denture attachment (containing partial teeth), and edentulous samples. The localization of the angiogenesis was related to the structure of the oral mucosa of connective tissue in humans, such as the mucosal fold-like of the buccal region. Using principal component analysis (PCA), we found that tooth occlusal condition, gender, anti-VEGF-A reaction levels in oral mucosa of the epithelium were positive factors in all groups, which is in contrast to the negative association of Ki-67 reaction in the epithelium and CD31 expression. In addition, Ki-67 reaction in oral mucosa had negative impacts, in contrast to the positive association of D2-40. These PCA properties provide useful information for future study of tumour progression or mechanical stress in remodelling of oral mucosa and angiogenesis. Moreover, mechanical stress of the occlusal condition may be correlated with tumour angiogenic activity and cell differentiation in human oral mucosa.
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Affiliation(s)
- Toru Inomata
- Department of Anatomy, Tokyo Medical University.
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20
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Gómez-Escudero J, Clemente C, García-Weber D, Acín-Pérez R, Millán J, Enríquez JA, Bentley K, Carmeliet P, Arroyo AG. PKM2 regulates endothelial cell junction dynamics and angiogenesis via ATP production. Sci Rep 2019; 9:15022. [PMID: 31636306 PMCID: PMC6803685 DOI: 10.1038/s41598-019-50866-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/19/2019] [Indexed: 12/17/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels from pre-existing ones, occurs in pathophysiological contexts such as wound healing, cancer, and chronic inflammatory disease. During sprouting angiogenesis, endothelial tip and stalk cells coordinately remodel their cell-cell junctions to allow collective migration and extension of the sprout while maintaining barrier integrity. All these processes require energy, and the predominant ATP generation route in endothelial cells is glycolysis. However, it remains unclear how ATP reaches the plasma membrane and intercellular junctions. In this study, we demonstrate that the glycolytic enzyme pyruvate kinase 2 (PKM2) is required for sprouting angiogenesis in vitro and in vivo through the regulation of endothelial cell-junction dynamics and collective migration. We show that PKM2-silencing decreases ATP required for proper VE-cadherin internalization/traffic at endothelial cell-cell junctions. Our study provides fresh insight into the role of ATP subcellular compartmentalization in endothelial cells during angiogenesis. Since manipulation of EC glycolysis constitutes a potential therapeutic intervention route, particularly in tumors and chronic inflammatory disease, these findings may help to refine the targeting of endothelial glycolytic activity in disease.
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Affiliation(s)
- Jesús Gómez-Escudero
- Vascular Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC). Melchor Fernández Almagro 3, 28029, Madrid, Spain
- Tumour Biology Department, Barts Cancer Institute, John´s Vane Centre, Queen Mary´s University of London. Charterhouse Sq, EC1M 6BQ, London, UK
| | - Cristina Clemente
- Vascular Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC). Melchor Fernández Almagro 3, 28029, Madrid, Spain
- Centro de Investigaciones Biológicas (CIB-CSIC). Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Diego García-Weber
- Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Rebeca Acín-Pérez
- Myocardial Pathology Areas, Centro Nacional de Investigaciones Cardiovasculares (CNIC). Melchor Fernández Almagro 3, 28029, Madrid, Spain
| | - Jaime Millán
- Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Científicas (CSIC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - José A Enríquez
- Myocardial Pathology Areas, Centro Nacional de Investigaciones Cardiovasculares (CNIC). Melchor Fernández Almagro 3, 28029, Madrid, Spain
| | - Katie Bentley
- Computational Biology Laboratory, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
- Cellular Adaptive Behaviour Laboratory, Rudbeck Laboratories, Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Peter Carmeliet
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, Vlaams Instituut voor Biotechnologie (VIB), B-3000, Leuven, Belgium
- Laboratory of Angiogenesis and Vascular Metabolism, Center for Cancer Biology, Department of Oncology, University of Leuven, B-3000, Leuven, Belgium
- State Key Laboratory of Ophthalmology, Zhongsan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, China
| | - Alicia G Arroyo
- Vascular Pathophysiology, Centro Nacional de Investigaciones Cardiovasculares (CNIC). Melchor Fernández Almagro 3, 28029, Madrid, Spain.
- Centro de Investigaciones Biológicas (CIB-CSIC). Ramiro de Maeztu 9, 28040, Madrid, Spain.
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21
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Ayala-Domínguez L, Olmedo-Nieva L, Muñoz-Bello JO, Contreras-Paredes A, Manzo-Merino J, Martínez-Ramírez I, Lizano M. Mechanisms of Vasculogenic Mimicry in Ovarian Cancer. Front Oncol 2019; 9:998. [PMID: 31612116 PMCID: PMC6776917 DOI: 10.3389/fonc.2019.00998] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 09/17/2019] [Indexed: 12/30/2022] Open
Abstract
Solid tumors carry out the formation of new vessels providing blood supply for growth, tumor maintenance, and metastasis. Several processes take place during tumor vascularization. In angiogenesis, new vessels are derived from endothelial cells of pre-existing vessels; while in vasculogenesis, new vessels are formed de novo from endothelial progenitor cells, creating an abnormal, immature, and disorganized vascular network. Moreover, highly aggressive tumor cells form structures similar to vessels, providing a pathway for perfusion; this process is named vasculogenic mimicry (VM), where vessel-like channels mimic the function of vessels and transport plasma and blood cells. VM is developed by numerous types of aggressive tumors, including ovarian carcinoma which is the second most common cause of death among gynecological cancers. VM has been associated with poor patient outcome and survival in ovarian cancer, although the involved mechanisms are still under investigation. Several signaling molecules have an important role in VM in ovarian cancer, by regulating the expression of genes related to vascular, embryogenic, and hypoxic signaling pathways. In this review, we provide an overview of the current knowledge of the signaling molecules involved in the promotion and regulation of VM in ovarian cancer. The clinical implications and the potential benefit of identification and targeting of VM related molecules for ovarian cancer treatment are also discussed.
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Affiliation(s)
- Lízbeth Ayala-Domínguez
- Programa de Doctorado en Ciencias Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Leslie Olmedo-Nieva
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Programa de Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - J Omar Muñoz-Bello
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Adriana Contreras-Paredes
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Imelda Martínez-Ramírez
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Marcela Lizano
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología-Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departamento de Medicina Genómica y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
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22
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Jászai J, Schmidt MHH. Trends and Challenges in Tumor Anti-Angiogenic Therapies. Cells 2019; 8:cells8091102. [PMID: 31540455 PMCID: PMC6770676 DOI: 10.3390/cells8091102] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/09/2019] [Accepted: 09/14/2019] [Indexed: 01/18/2023] Open
Abstract
Excessive abnormal angiogenesis plays a pivotal role in tumor progression and is a hallmark of solid tumors. This process is driven by an imbalance between pro- and anti-angiogenic factors dominated by the tissue hypoxia-triggered overproduction of vascular endothelial growth factor (VEGF). VEGF-mediated signaling has quickly become one of the most promising anti-angiogenic therapeutic targets in oncology. Nevertheless, the clinical efficacy of this approach is severely limited in certain tumor types or shows only transient efficacy in patients. Acquired or intrinsic therapy resistance associated with anti-VEGF monotherapeutic approaches indicates the necessity of a paradigm change when targeting neoangiogenesis in solid tumors. In this context, the elaboration of the conceptual framework of “vessel normalization” might be a promising approach to increase the efficacy of anti-angiogenic therapies and the survival rates of patients. Indeed, the promotion of vessel maturation instead of regressing tumors by vaso-obliteration could result in reduced tumor hypoxia and improved drug delivery. The implementation of such anti-angiogenic strategies, however, faces several pitfalls due to the potential involvement of multiple pro-angiogenic factors and modulatory effects of the innate and adaptive immune system. Thus, effective treatments bypassing relapses associated with anti-VEGF monotherapies or breaking the intrinsic therapy resistance of solid tumors might use combination therapies or agents with a multimodal mode of action. This review enumerates some of the current approaches and possible future directions of treating solid tumors by targeting neovascularization.
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Affiliation(s)
- József Jászai
- Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden School of Medicine, 01307 Dresden, Germany.
| | - Mirko H H Schmidt
- Institute of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden School of Medicine, 01307 Dresden, Germany.
- German Cancer Consortium (DKTK), Partner Site Dresden, 01307 Dresden, Germany.
- German Cancer Research Center (DKFZ), 61920 Heidelberg, Germany.
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23
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Anthony C, Mladkova-Suchy N, Adamson DC. The evolving role of antiangiogenic therapies in glioblastoma multiforme: current clinical significance and future potential. Expert Opin Investig Drugs 2019; 28:787-797. [PMID: 31356114 DOI: 10.1080/13543784.2019.1650019] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Introduction: Glioblastoma multiforme (GBM) is the most common primary malignant brain tumor in adults, but its prognosis remains poor despite significant advances in our understanding of its molecular biology and investigation of numerous treatment modalities. Despite conventional treatment consisting of surgical resection, radiotherapy, and temozolomide marginally prolonging survival, most GBM patients die within 2 years of initial diagnosis. Bevacizumab (Bev) is the best-studied antiangiogenic agent for GBM and currently the only FDA-approved second-line treatment. Areas covered: Areas covered in this review include the molecular pathways of angiogenesis in glioblastoma, specifically the overexpression of vascular endothelial growth factor (VEGF) and robust formation of tumor neovasculature. In addition, this review covers pharmacological targeting of this process as a longstanding attractive clinical strategy, specifically by Bev. Expert opinion: This review attempts to discuss the history of early studies of antiangiogenic treatment for GBM that eventually failed in subsequent studies and the evolving modern role of Bev in the course of treatment for a variety of indications, including symptom control, reduced glucocorticoid use, and improved quality of life.
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Affiliation(s)
- Casey Anthony
- Department of Neurosurgery, Emory University , Atlanta , GA , USA
| | - Nikol Mladkova-Suchy
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London , UK
| | - David Cory Adamson
- Department of Neurosurgery, Emory University , Atlanta , GA , USA.,Neurosurgery section, Atlanta VA Medical Center , Decatur , GA , USA
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24
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Kalluri AS, Vellarikkal SK, Edelman ER, Nguyen L, Subramanian A, Ellinor PT, Regev A, Kathiresan S, Gupta RM. Single-Cell Analysis of the Normal Mouse Aorta Reveals Functionally Distinct Endothelial Cell Populations. Circulation 2019; 140:147-163. [PMID: 31146585 DOI: 10.1161/circulationaha.118.038362] [Citation(s) in RCA: 191] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND The cells that form the arterial wall contribute to multiple vascular diseases. The extent of cellular heterogeneity within these populations has not been fully characterized. Recent advances in single-cell RNA-sequencing make it possible to identify and characterize cellular subpopulations. METHODS We validate a method for generating a droplet-based single-cell atlas of gene expression in a normal blood vessel. Enzymatic dissociation of 4 whole mouse aortas was followed by single-cell sequencing of >10 000 cells. RESULTS Clustering analysis of gene expression from aortic cells identified 10 populations of cells representing each of the main arterial cell types: fibroblasts, vascular smooth muscle cells, endothelial cells (ECs), and immune cells, including monocytes, macrophages, and lymphocytes. The most significant cellular heterogeneity was seen in the 3 distinct EC populations. Gene set enrichment analysis of these EC subpopulations identified a lymphatic EC cluster and 2 other populations more specialized in lipoprotein handling, angiogenesis, and extracellular matrix production. These subpopulations persist and exhibit similar changes in gene expression in response to a Western diet. Immunofluorescence for Vcam1 and Cd36 demonstrates regional heterogeneity in EC populations throughout the aorta. CONCLUSIONS We present a comprehensive single-cell atlas of all cells in the aorta. By integrating expression from >1900 genes per cell, we are better able to characterize cellular heterogeneity compared with conventional approaches. Gene expression signatures identify cell subpopulations with vascular disease-relevant functions.
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Affiliation(s)
- Aditya S Kalluri
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.).,Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge (A.S.K., E.R.E.)
| | - Shamsudheen K Vellarikkal
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.).,Center for Genomic Medicine (S.K.V., S.K., R.M.G.), Massachusetts General Hospital, Boston
| | - Elazer R Edelman
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge (A.S.K., E.R.E.).,Division of Cardiovascular Medicine, Department of Medicine (E.R.E., R.M.G.), Brigham and Women's Hospital, Boston MA
| | - Lan Nguyen
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.)
| | - Ayshwarya Subramanian
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.)
| | - Patrick T Ellinor
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.).,Cardiology Division, Department of Medicine (P.T.E., S.K.), Massachusetts General Hospital, Boston
| | - Aviv Regev
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.)
| | - Sekar Kathiresan
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.).,Cardiology Division, Department of Medicine (P.T.E., S.K.), Massachusetts General Hospital, Boston.,Center for Genomic Medicine (S.K.V., S.K., R.M.G.), Massachusetts General Hospital, Boston
| | - Rajat M Gupta
- Broad Institute of MIT and Harvard University, Cambridge, MA (A.S.K., S.K.V., L.N., A.S., P.T.E., A.R., S.K., R.M.G.).,Division of Cardiovascular Medicine, Department of Medicine (E.R.E., R.M.G.), Brigham and Women's Hospital, Boston MA.,Division of Genetics (R.M.G.), Brigham and Women's Hospital, Boston MA.,Center for Genomic Medicine (S.K.V., S.K., R.M.G.), Massachusetts General Hospital, Boston
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25
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Kühn C, Checa S. Computational Modeling to Quantify the Contributions of VEGFR1, VEGFR2, and Lateral Inhibition in Sprouting Angiogenesis. Front Physiol 2019; 10:288. [PMID: 30971939 PMCID: PMC6445957 DOI: 10.3389/fphys.2019.00288] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 03/05/2019] [Indexed: 12/25/2022] Open
Abstract
Sprouting angiogenesis is a necessary process in regeneration and development as well as in tumorigenesis. VEGF-A is the main pro-angiogenic chemoattractant and it can bind to the decoy receptor VEGFR1 or to VEGFR2 to induce sprouting. Active sprout cells express Dll4, which binds to Notch1 on neighboring cells, in turn inhibiting VEGFR2 expression. It is known that the balance between VEGFR2 and VEGFR1 determines tip selection and network architecture, however the quantitative interrelationship of the receptors and their interrelated balances, also with relation to Dll4-Notch1 signaling, remains yet largely unknown. Here, we present an agent-based computer model of sprouting angiogenesis, integrating VEGFR1 and VEGFR2 in a detailed model of cellular signaling. Our model reproduces experimental data on VEGFR1 knockout. We show that soluble VEGFR1 improves the efficiency of angiogenesis by directing sprouts away from existing cells over a wide range of parameters. Our analysis unravels the relevance of the stability of the active notch intracellular domain as a dominating hub in this regulatory network. Our analysis quantitatively dissects the regulatory interactions in sprouting angiogenesis. Because we use a detailed model of intracellular signaling, the results of our analysis are directly linked to biological entities. We provide our computational model and simulation engine for integration in complementary modeling approaches.
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Affiliation(s)
- Clemens Kühn
- Julius Wolff Institute, Charite - Universitätsmedizin Berlin, Berlin, Germany
| | - Sara Checa
- Julius Wolff Institute, Charite - Universitätsmedizin Berlin, Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charite - UIniversitätsmedizin Berlin, Berlin, Germany
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26
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Morikawa S, Iribar H, Gutiérrez-Rivera A, Ezaki T, Izeta A. Pericytes in Cutaneous Wound Healing. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1147:1-63. [DOI: 10.1007/978-3-030-16908-4_1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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27
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Liu J, Wada Y, Katsura M, Tozawa H, Erwin N, Kapron CM, Bao G, Liu J. Rho-Associated Coiled-Coil Kinase (ROCK) in Molecular Regulation of Angiogenesis. Am J Cancer Res 2018; 8:6053-6069. [PMID: 30613282 PMCID: PMC6299434 DOI: 10.7150/thno.30305] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 10/16/2018] [Indexed: 02/06/2023] Open
Abstract
Identified as a major downstream effector of the small GTPase RhoA, Rho-associated coiled-coil kinase (ROCK) is a versatile regulator of multiple cellular processes. Angiogenesis, the process of generating new capillaries from the pre-existing ones, is required for the development of various diseases such as cancer, diabetes and rheumatoid arthritis. Recently, ROCK has attracted attention for its crucial role in angiogenesis, making it a promising target for new therapeutic approaches. In this review, we summarize recent advances in understanding the role of ROCK signaling in regulating the permeability, migration, proliferation and tubulogenesis of endothelial cells (ECs), as well as its functions in non-ECs which constitute the pro-angiogenic microenvironment. The therapeutic potential of ROCK inhibitors in angiogenesis-related diseases is also discussed.
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28
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Intravenous Infusion of Nucleated Peripheral Blood Cells Restores Fertility in Mice with Chemotherapy-Induced Premature Ovarian Failure. Biomedicines 2018; 6:biomedicines6030093. [PMID: 30223591 PMCID: PMC6163893 DOI: 10.3390/biomedicines6030093] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 08/29/2018] [Accepted: 09/11/2018] [Indexed: 11/16/2022] Open
Abstract
Cancer treatment with specific chemotherapeutic agents has been well documented to have an adverse impact on female fertility leading to premature ovarian failure (POF). The objective of this study is to investigate if chemotherapeutic induced POF can be reversed by the infusion of autologous nucleated peripheral blood cells (PBMC). To reach our goal, mice were treated with a single intraperitoneal injections of busulfan and cyclophosphamide to induce POF. This was followed by transfusion of PBMC. The ovarian morphology and functional parameters were monitored by radioimmunoassay, real-time PCR, immunofluorescence and immunohistochemistry analysis. Our study showed that chemotherapy (CTX) protracted estrous cycle period and repressed E2 production. In addition, CTX decreased the expressions of steroidogenesis markers, CYP-17 synthesis, StAR (steroidogenic acute regulatory protein), and Connexin-43 protein expression in the ovarian follicles. We also observed reduced numbers and sizes of the primordial and primary follicles in CTX-treated mice compared to untreated controls (p < 0.05). When both CTX and untreated control groups were stimulated with gonadotrophin, the control group produced ten times more ova than the CTX group. Finally, the treatment of premature ovarian failure induced by CTX with autologous PBMC transfusion resulted in over-expression and a statistically significant increase in several stem cell markers and restoration of fertility. Infusion with PBMC in CTX further decreased the estrous cycle length by 2.5 times (p < 0.01). We found that transfusion of autologous PBMC to mice with chemotherapy induced POF was very effective at restoring fertility. These results are similar to other studies using bone marrow derived mesenchymal stem cells.
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Thuringer D, Chanteloup G, Winckler P, Garrido C. The vesicular transfer of CLIC1 from glioblastoma to microvascular endothelial cells requires TRPM7. Oncotarget 2018; 9:33302-33311. [PMID: 30279961 PMCID: PMC6161795 DOI: 10.18632/oncotarget.26048] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/16/2018] [Indexed: 01/01/2023] Open
Abstract
Chloride intracellular channel 1 (CLIC1) is highly expressed and secreted by human glioblastoma cells and cell lines such as U87, initiating cell migration and tumor growth. Here, we examined whether CLIC1 could be transferred to human primary microvascular endothelial cells (HMEC). We previously reported that the oncogenic microRNA, miR-5096, increased the release of extracellular vesicles (EVs) by which it increased its own transfer from U87 to surrounding cells. Thus, we also examined its effect on the CLIC1 transfer. In homotypic cultures, miR-5096 did not increase the expression of CLIC1 in U87 nor in HMEC. However, the endothelial CLIC1 level increased after exposure to EVs released by U87, and even more by miR-5096-loaded U87. The EVs-transferred CLIC1 was active in HMEC, promoting endothelial sprouting in matrigel. Cell exposure to EVs induced cytosolic Ca2+ spikes which were dependent on the transient receptor potential melastatin member 7 (TRPM7). TRPM7 silencing prevented Ca2+ spikes and the subsequent CLIC1 delivery into HMEC. Our data suggest that the vesicular transfer of CLIC1 between cells requires TRMP7 expression in recipient endothelial cells. How the vesicular transfer of CLIC1 is modulated in cancer therapy is a future challenge.
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Affiliation(s)
- Dominique Thuringer
- INSERM U1231, Laboratory of Excellence Ligue Nationale contre le Cancer, 21000 Dijon, France.,Université de Bourgogne Franche Comté, 21000 Dijon, France
| | - Gaetan Chanteloup
- INSERM U1231, Laboratory of Excellence Ligue Nationale contre le Cancer, 21000 Dijon, France.,Université de Bourgogne Franche Comté, 21000 Dijon, France
| | - Pascale Winckler
- AgroSup Dijon, PAM UMR, DImaCell Imaging Facility, Université de Bourgogne Franche Comté, 21000 Dijon, France
| | - Carmen Garrido
- INSERM U1231, Laboratory of Excellence Ligue Nationale contre le Cancer, 21000 Dijon, France.,Université de Bourgogne Franche Comté, 21000 Dijon, France.,Centre Georges François Leclerc (CGFL), 21000 Dijon, France
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Paragangliomas arise through an autonomous vasculo-angio-neurogenic program inhibited by imatinib. Acta Neuropathol 2018; 135:779-798. [PMID: 29305721 PMCID: PMC5904229 DOI: 10.1007/s00401-017-1799-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/16/2017] [Accepted: 12/21/2017] [Indexed: 12/26/2022]
Abstract
Tumours can be viewed as aberrant tissues or organs sustained by tumorigenic stem-like cells that engage into dysregulated histo/organogenetic processes. Paragangliomas, prototypical organoid tumours constituted by dysmorphic variants of the vascular and neural tissues found in normal paraganglia, provide a model to test this hypothesis. To understand the origin of paragangliomas, we built a biobank comprising 77 cases, 18 primary cultures, 4 derived cell lines, 80 patient-derived xenografts and 11 cell-derived xenografts. We comparatively investigated these unique complementary materials using morphofunctional, ultrastructural and flow cytometric assays accompanied by microRNA studies. We found that paragangliomas contain stem-like cells with hybrid mesenchymal/vasculoneural phenotype, stabilized and expanded in the derived cultures. The viability and growth of such cultures depended on the downregulation of the miR-200 and miR-34 families, which allowed high PDGFRA and ZEB1 protein expression levels. Both tumour tissue- and cell culture-derived xenografts recapitulated the vasculoneural paraganglioma structure and arose from mesenchymal-like cells through a fixed developmental sequence. First, vasculoangiogenesis organized the microenvironment, building a perivascular niche which in turn supported neurogenesis. Neuroepithelial differentiation was associated with severe mitochondrial dysfunction, not present in cultured paraganglioma cells, but acquired in vivo during xenograft formation. Vasculogenesis was the Achilles’ heel of xenograft development. In fact, imatinib, that targets endothelial-mural signalling, blocked paraganglioma xenograft formation (11 xenografts from 12 cell transplants in the control group versus 2 out of 10 in the treated group, P = 0.0015). Overall our key results were unaffected by the SDHx gene carrier status of the patient, characterized for 70 out of 77 cases. In conclusion, we explain the biphasic vasculoneural structure of paragangliomas and identify an early and pharmacologically actionable phase of paraganglioma organization.
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Kant RJ, Coulombe KLK. Integrated approaches to spatiotemporally directing angiogenesis in host and engineered tissues. Acta Biomater 2018; 69:42-62. [PMID: 29371132 PMCID: PMC5831518 DOI: 10.1016/j.actbio.2018.01.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/15/2017] [Accepted: 01/15/2018] [Indexed: 12/14/2022]
Abstract
The field of tissue engineering has turned towards biomimicry to solve the problem of tissue oxygenation and nutrient/waste exchange through the development of vasculature. Induction of angiogenesis and subsequent development of a vascular bed in engineered tissues is actively being pursued through combinations of physical and chemical cues, notably through the presentation of topographies and growth factors. Presenting angiogenic signals in a spatiotemporal fashion is beginning to generate improved vascular networks, which will allow for the creation of large and dense engineered tissues. This review provides a brief background on the cells, mechanisms, and molecules driving vascular development (including angiogenesis), followed by how biomaterials and growth factors can be used to direct vessel formation and maturation. Techniques to accomplish spatiotemporal control of vascularization include incorporation or encapsulation of growth factors, topographical engineering, and 3D bioprinting. The vascularization of engineered tissues and their application in angiogenic therapy in vivo is reviewed herein with an emphasis on the most densely vascularized tissue of the human body - the heart. STATEMENT OF SIGNIFICANCE Vascularization is vital to wound healing and tissue regeneration, and development of hierarchical networks enables efficient nutrient transfer. In tissue engineering, vascularization is necessary to support physiologically dense engineered tissues, and thus the field seeks to induce vascular formation using biomaterials and chemical signals to provide appropriate, pro-angiogenic signals for cells. This review critically examines the materials and techniques used to generate scaffolds with spatiotemporal cues to direct vascularization in engineered and host tissues in vitro and in vivo. Assessment of the field's progress is intended to inspire vascular applications across all forms of tissue engineering with a specific focus on highlighting the nuances of cardiac tissue engineering for the greater regenerative medicine community.
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Affiliation(s)
- Rajeev J Kant
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, RI, USA
| | - Kareen L K Coulombe
- Center for Biomedical Engineering, School of Engineering, Brown University, Providence, RI, USA.
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32
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Malecic N, Young HS. Excessive angiogenesis associated with psoriasis as a cause for cardiovascular ischaemia. Exp Dermatol 2018; 26:299-304. [PMID: 28156019 DOI: 10.1111/exd.13310] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2017] [Indexed: 01/09/2023]
Abstract
Psoriasis, a common disease affecting 2%-3% of the UK population, produces significant impairment of quality of life and is an immense burden on sufferers and their families. Psoriasis is associated with significant cardiovascular comorbidity and the metabolic syndrome. Angiogenesis, a relatively under-researched component of psoriasis, is a key factor in pathogenesis of psoriasis and also contributes to the development of atherosclerosis. Vascular endothelial growth factor (VEGF) is a well-established mediator of pathological angiogenesis which is upregulated in psoriasis. It is possible that, in patients with psoriasis, cutaneous angiogenesis may be both a marker for systemic vascular pathology and a novel therapeutic target. In this viewpoint study, the role of VEGF-mediated angiogenesis as a cause for cardiovascular events in patients with psoriasis is explored.
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Affiliation(s)
- Nina Malecic
- Manchester Academic Health Science Centre, Department of Dermatology, The University of Manchester, Manchester, UK
| | - Helen S Young
- Manchester Academic Health Science Centre, Department of Dermatology, The University of Manchester, Manchester, UK
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Varberg KM, Winfree S, Dunn KW, Haneline LS. Kinetic Analysis of Vasculogenesis Quantifies Dynamics of Vasculogenesis and Angiogenesis In Vitro. J Vis Exp 2018. [PMID: 29443032 PMCID: PMC5912317 DOI: 10.3791/57044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Vasculogenesis is a complex process by which endothelial stem and progenitor cells undergo de novo vessel formation. Quantitative assessment of vasculogenesis has become a central readout of endothelial progenitor cell functionality, and therefore, several attempts have been made to improve both in vitro and in vivo vasculogenesis models. However, standard methods are limited in scope, with static measurements failing to capture many aspects of this highly dynamic process. Therefore, the goal of developing this novel protocol was to assess the kinetics of in vitro vasculogenesis in order to quantitate rates of network formation and stabilization, as well as provide insight into potential mechanisms underlying vascular dysfunction. Application of this protocol is demonstrated using fetal endothelial colony forming cells (ECFCs) exposed to maternal diabetes mellitus. Fetal ECFCs were derived from umbilical cord blood following birth, cultured, and plated in slides containing basement membrane matrix, where they underwent vasculogenesis. Images of the entire slide wells were acquired using time-lapse phase contrast microscopy over 15 hours. Images were analyzed for derivation of quantitative data using an analysis software called Kinetic Analysis of Vasculogenesis (KAV). KAV uses image segmentation followed by skeletonization to analyze network components from stacks of multi-time point phase contrast images to derive ten parameters (9 measured, 1 calculated) of network structure including: closed networks, network areas, nodes, branches, total branch length, average branch length, triple-branched nodes, quad-branched nodes, network structures, and the branch to node ratio. Application of this protocol identified altered rates of vasculogenesis in ECFCs obtained from pregnancies complicated by diabetes mellitus. However, this technique has broad implications beyond the scope reported here. Implementation of this approach will enhance mechanistic assessment and improve functional readouts of vasculogenesis and other biologically important branching processes in numerous cell types or disease states.
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Affiliation(s)
- Kaela M Varberg
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine; Herman B Wells Center for Pediatric Research, Indiana University School of Medicine
| | - Seth Winfree
- Indiana Center for Biological Microscopy, Indiana University School of Medicine; Department of Medicine, Indiana University School of Medicine
| | - Kenneth W Dunn
- Indiana Center for Biological Microscopy, Indiana University School of Medicine; Department of Medicine, Indiana University School of Medicine
| | - Laura S Haneline
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine; Herman B Wells Center for Pediatric Research, Indiana University School of Medicine; Department of Pediatrics, Indiana University School of Medicine; Department of Microbiology and Immunology, Indiana University School of Medicine; Indiana University Simon Cancer Center, Indiana University School of Medicine;
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Saghiri MA, Asatourian A, Sorenson CM, Sheibani N. Mice dental pulp and periodontal ligament endothelial cells exhibit different proangiogenic properties. Tissue Cell 2017; 50:31-36. [PMID: 29429515 DOI: 10.1016/j.tice.2017.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 11/22/2017] [Accepted: 11/30/2017] [Indexed: 02/06/2023]
Abstract
Dental pulp is a highly vascularized tissue with a high regenerative capacity. This is attributed to its unique blood supply and the presence of progenitor or postnatal dental pulp stem cells. Here we aimed to isolate and compare the angiogenic properties of endothelial cells (EC) prepared from mouse dental pulp and periodontal ligament (PDL). EC were isolated from 4-week-old wild type immorto mice. Mice were sacrificed and after mandible isolation, the molar and incisor teeth and the PDL from molar teeth were dissected. EC were prepared by collagenase digestion of tissues and affinity purification using magnetic beads coated with platelet/endothelial cell adhesion molecule-1 (PECAM-1/CD31) antibody. EC prepared from incisor and molar pulps and PDL were examined for expression of appropriate markers by fluorescence-activated cell sorting (FACS) analysis. The proliferation, migration, and capillary morphogenesis of EC were evaluated. Ex vivo sprouting angiogenesis from various tissues was also compared. Data were analyzed at the level of significance of P<0.05. Pulp EC prepared from incisors proliferated and migrated significantly faster than molar and PDL EC (P<0.05). In addition, molar and PDL EC formed a more extensive capillary network when plated on Matrigel. This is consistent with the lower proliferative and migratory characteristics of these cells compared with incisor EC (P<0.05). However, PDL tissue showed significantly more sprouting area than molar and incisor pulp tissues (P<0.05). Thus, pulp EC from molar and incisor and PDL EC present different proangiogenic properties. Collectively our results suggest that EC from different tooth tissue have unique characteristics related to their target tissue and function.
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Affiliation(s)
- Mohammad Ali Saghiri
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States; Departments of Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States.
| | - Armen Asatourian
- Sector of Angiogenesis Regenerative Medicine, Dr. H. Afsar Lajevardi Research Cluster, Shiraz, Iran
| | - Christine M Sorenson
- Department of Pediatircs, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States; Departments of Biomedical Engineering, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
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Zakhari JS, Zabonick J, Gettler B, Williams SK. Vasculogenic and angiogenic potential of adipose stromal vascular fraction cell populations in vitro. In Vitro Cell Dev Biol Anim 2017; 54:32-40. [PMID: 29197029 PMCID: PMC5760587 DOI: 10.1007/s11626-017-0213-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 10/17/2017] [Indexed: 01/22/2023]
Abstract
Adipose-derived stromal vascular fraction (SVF) is a heterogeneous cell source that contains endothelial cells, pericytes, smooth muscle cells, stem cells, and other accessory immune and stromal cells. The SVF cell population has been shown to support vasculogenesis in vitro as well vascular maturation in vivo. Matrigel, an extracellular matrix (ECM) mixture has been utilized in vitro to evaluate tube formation of purified endothelial cell systems. We have developed an in vitro system that utilizes freshly isolated SVF and ECM molecules both in pure form (fibrin, laminin, collagen) as well as premixed form (Matrigel) to evaluate endothelial tip cell formation, endothelial stalk elongation, and early stages of branching and inosculation. Freshly isolated SVF rat demonstrate cell aggregation and clustering (presumptive vasculogenesis) on Matrigel ECM within the first 36 h of seeding followed by tip cell formation, stalk cell formation, branching, and inosculation (presumptive angiogenesis) during the subsequent 4 days of culture. Purified ECM molecules (laminin, fibrin, and collagen) promote cell proliferation but do not recapitulate events seen on Matrigel. We have created an in vitro system that provides a functional assay to study the mechanisms of vasculogenesis and angiogenesis in freshly isolated SVF to characterize SVF’s blood vessel forming potential prior to clinical implantation.
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Affiliation(s)
- Joseph S Zakhari
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Jacob Zabonick
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Brian Gettler
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA
| | - Stuart K Williams
- Bioficial Organs Program, Cardiovascular Innovation Institute, 302 E. Muhammad Ali Blvd, Louisville, KY, 40202, USA.
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R-Ras-Akt axis induces endothelial lumenogenesis and regulates the patency of regenerating vasculature. Nat Commun 2017; 8:1720. [PMID: 29170374 PMCID: PMC5700916 DOI: 10.1038/s41467-017-01865-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 10/20/2017] [Indexed: 01/29/2023] Open
Abstract
The formation of endothelial lumen is fundamental to angiogenesis and essential to the oxygenation of hypoxic tissues. The molecular mechanism underlying this important process remains obscure. Here, we show that Akt activation by a Ras homolog, R-Ras, stabilizes the microtubule cytoskeleton in endothelial cells leading to endothelial lumenogenesis. The activation of Akt by the potent angiogenic factor VEGF-A does not strongly stabilize microtubules or sufficiently promote lumen formation, hence demonstrating a distinct role for the R-Ras-Akt axis. We show in mice that this pathway is important for the lumenization of new capillaries and microvessels developing in ischemic muscles to allow sufficient tissue reperfusion after ischemic injury. Our work identifies a role for Akt in lumenogenesis and the significance of the R-Ras-Akt signaling for the patency of regenerating blood vessels. Formation of the vascular lumen initiates the blood flow and it is crucial for tissue homeostasis. Here, Li et. al show that the R-Ras-Akt signaling axis is crucial for reparative angiogenesis in mice because it stabilizes the microtubule cytoskeleton in endothelial cells to promote endothelial lumen formation.
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37
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Liang X, Zhang L, Wang S, Han Q, Zhao RC. Exosomes secreted by mesenchymal stem cells promote endothelial cell angiogenesis by transferring miR-125a. J Cell Sci 2017; 129:2182-9. [PMID: 27252357 DOI: 10.1242/jcs.170373] [Citation(s) in RCA: 398] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 04/05/2016] [Indexed: 12/12/2022] Open
Abstract
Angiogenesis plays crucial roles in various physiological processes including wound healing and tissue repair. It requires a tight interaction between endothelial cells and their surrounding environment. Mesenchymal stem cells (MSCs), one of the non-endothelial cell types present in the perivascular environment, have been shown to secret exosomes to modulate intercellular communications between MSCs and their target cells. In this study, we initially isolated exosomes secreted by human adipose-derived MSCs (adMSC-Exo) and examined their roles in angiogenesis. We found that adMSC-Exo could be taken up by endothelial cells and significantly promote angiogenesis in vitro and in vivo Further study showed that miR-125a was enriched in adMSC-Exo, and repressed the expression of the angiogenic inhibitor delta-like 4 (DLL4) by targeting its 3' untranslated region. Additionally, adMSC-Exo and its exosomal transferred miR-125a could repress DLL4 expression and modulate endothelial cell angiogenesis through promoting formation of endothelial tip cells. In conclusion, our study indicates that adMSC-Exo can transfer miR-125a to endothelial cells and promote angiogenesis by repressing DLL4. adMSC-Exo, as a pro-angiogenic factor, might be a promising candidate for therapeutical tissue repair.
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Affiliation(s)
- Xiaolei Liang
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 5# Dongdansantiao, Beijing 100005, People's Republic of China
| | - Lina Zhang
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 5# Dongdansantiao, Beijing 100005, People's Republic of China
| | - Shihua Wang
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 5# Dongdansantiao, Beijing 100005, People's Republic of China
| | - Qin Han
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 5# Dongdansantiao, Beijing 100005, People's Republic of China
| | - Robert Chunhua Zhao
- Department of Cell Biology, Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, 5# Dongdansantiao, Beijing 100005, People's Republic of China Peking Union Medical College Hospital, 1# Shuaifuyuan, Beijing 100032, People's Republic of China
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38
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Díaz-Coránguez M, Ramos C, Antonetti DA. The inner blood-retinal barrier: Cellular basis and development. Vision Res 2017; 139:123-137. [PMID: 28619516 DOI: 10.1016/j.visres.2017.05.009] [Citation(s) in RCA: 163] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/26/2017] [Accepted: 05/30/2017] [Indexed: 01/01/2023]
Abstract
The blood-retinal barrier (BRB) regulates transport across retinal capillaries maintaining proper neural homeostasis and protecting the neural tissue from potential blood borne toxicity. Loss of the BRB contributes to the pathophysiology of a number of blinding retinal diseases including diabetic retinopathy. In this review, we address the basis of the BRB, including the molecular mechanisms that regulate flux across the retinal vascular bed. The routes of transcellular and paracellular flux are described as well as alterations in these pathways in response to permeabilizing agents in diabetes. Finally, we provide information on exciting new studies that help to elucidate the process of BRB development or barriergenesis and how understanding this process may lead to new opportunities for barrier restoration in diabetic retinopathy.
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Affiliation(s)
- Mónica Díaz-Coránguez
- Department of Ophthalmology and Visual Sciences, Kellogg Eye Center, University of Michigan, Ann Arbor, MI, United States
| | - Carla Ramos
- Department of Ophthalmology and Visual Sciences, Kellogg Eye Center, University of Michigan, Ann Arbor, MI, United States
| | - David A Antonetti
- Department of Ophthalmology and Visual Sciences, Kellogg Eye Center, University of Michigan, Ann Arbor, MI, United States.
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39
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Zheng Y, Wang S, Xue X, Xu A, Liao W, Deng A, Dai G, Liu AP, Fu J. Notch signaling in regulating angiogenesis in a 3D biomimetic environment. LAB ON A CHIP 2017; 17:1948-1959. [PMID: 28470301 PMCID: PMC6223016 DOI: 10.1039/c7lc00186j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Angiogenesis is a complex cellular process involving highly orchestrated invasion and organization of endothelial cells (ECs) in a three-dimensional (3D) environment. Recent evidence indicates that Notch signaling is critically involved in regulating specialized functions and distinct fates of ECs in newly formed vasculatures during angiogenesis. Here, we demonstrated, for the first time, the application of a microengineered biomimetic system to quantitatively investigate the role of Notch signaling in regulating early angiogenic sprouting and vasculature formation of ECs in a 3D extracellular matrix. Morphological features of angiogenesis including invasion distance, invasion area, and tip cell number were quantified and compared under pharmacological perturbations of Notch signaling. In addition, influences of Notch signaling on EC proliferation in angiogenic vasculatures and directional invasion of tip cells were also investigated. Moreover, leveraging a novel nanobiosensor system, mRNA expression of Dll4, a Notch ligand, was monitored in invading tip cells using live cell imaging during the dynamic angiogenic process. Our data showed that inhibition of Notch signaling resulted in hyper-sprouting endothelial structures, while activation of Notch signaling led to opposite effects. Our results also supported the role of Notch signaling in regulating EC proliferation and dynamic invasion of tip cells during angiogenesis.
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Affiliation(s)
- Yi Zheng
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Shue Wang
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xufeng Xue
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Alan Xu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Wei Liao
- Department of Precision Instrument, Tsinghua University, Beijing, 100084, P.R. China
| | - Alice Deng
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Guohao Dai
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA
| | - Allen P. Liu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
- Biophysics Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jianping Fu
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
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40
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Liu Z, Sanders AJ, Liang G, Song E, Jiang WG, Gong C. Hey Factors at the Crossroad of Tumorigenesis and Clinical Therapeutic Modulation of Hey for Anticancer Treatment. Mol Cancer Ther 2017; 16:775-786. [PMID: 28468863 DOI: 10.1158/1535-7163.mct-16-0576] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 12/29/2016] [Accepted: 12/29/2016] [Indexed: 11/16/2022]
Affiliation(s)
- Zihao Liu
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetic and Gene Regulation, Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Andrew J Sanders
- Cardiff China Medical Research Collaborative, Cardiff University School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
| | - Gehao Liang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetic and Gene Regulation, Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Erwei Song
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetic and Gene Regulation, Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wen G Jiang
- Cardiff China Medical Research Collaborative, Cardiff University School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom.
| | - Chang Gong
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetic and Gene Regulation, Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
- Cardiff China Medical Research Collaborative, Cardiff University School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom
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Brain microvasculature defects and Glut1 deficiency syndrome averted by early repletion of the glucose transporter-1 protein. Nat Commun 2017; 8:14152. [PMID: 28106060 PMCID: PMC5263887 DOI: 10.1038/ncomms14152] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 12/03/2016] [Indexed: 12/14/2022] Open
Abstract
Haploinsufficiency of the SLC2A1 gene and paucity of its translated product, the glucose transporter-1 (Glut1) protein, disrupt brain function and cause the neurodevelopmental disorder, Glut1 deficiency syndrome (Glut1 DS). There is little to suggest how reduced Glut1 causes cognitive dysfunction and no optimal treatment for Glut1 DS. We used model mice to demonstrate that low Glut1 protein arrests cerebral angiogenesis, resulting in a profound diminution of the brain microvasculature without compromising the blood-brain barrier. Studies to define the temporal requirements for Glut1 reveal that pre-symptomatic, AAV9-mediated repletion of the protein averts brain microvasculature defects and prevents disease, whereas augmenting the protein late, during adulthood, is devoid of benefit. Still, treatment following symptom onset can be effective; Glut1 repletion in early-symptomatic mutants that have experienced sustained periods of low brain glucose nevertheless restores the cerebral microvasculature and ameliorates disease. Timely Glut1 repletion may thus constitute an effective treatment for Glut1 DS.
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42
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Kim JJ, Hou L, Huang NF. Vascularization of three-dimensional engineered tissues for regenerative medicine applications. Acta Biomater 2016; 41:17-26. [PMID: 27262741 PMCID: PMC4969172 DOI: 10.1016/j.actbio.2016.06.001] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 05/24/2016] [Accepted: 06/01/2016] [Indexed: 01/05/2023]
Abstract
UNLABELLED Engineering of three-dimensional (3D) tissues is a promising approach for restoring diseased or dysfunctional myocardium with a functional replacement. However, a major bottleneck in this field is the lack of efficient vascularization strategies, because tissue constructs produced in vitro require a constant flow of oxygen and nutrients to maintain viability and functionality. Compared to angiogenic cell therapy and growth factor treatment, bioengineering approaches such as spatial micropatterning, integration of sacrificial materials, tissue decellularization, and 3D bioprinting enable the generation of more precisely controllable neovessel formation. In this review, we summarize the state-of-the-art approaches to develop 3D tissue engineered constructs with vasculature, and demonstrate how some of these techniques have been applied towards regenerative medicine for treatment of heart failure. STATEMENT OF SIGNIFICANCE Tissue engineering is a promising approach to replace or restore dysfunctional tissues/organs, but a major bottleneck in realizing its potential is the challenge of creating scalable 3D tissues. Since most 3D engineered tissues require a constant supply of nutrients, it is necessary to integrate functional vasculature within the tissues in order to facilitate the transport of nutrients. To address these needs, researchers are employing biomaterial engineering and design strategies to foster vessel formation within 3D tissues. This review highlights the state-of-the-art bioengineering tools and technologies to create vascularized 3D tissues for clinical applications in regenerative medicine, highlighting the application of these technologies to engineer vascularized cardiac patches for treatment of heart failure.
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Affiliation(s)
- Joseph J Kim
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA; Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Luqia Hou
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA; Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - Ngan F Huang
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA, USA; Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA; Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, USA.
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Tavasoli M, Al-Momany A, Wang X, Li L, Edwards JC, Ballermann BJ. Both CLIC4 and CLIC5A activate ERM proteins in glomerular endothelium. Am J Physiol Renal Physiol 2016; 311:F945-F957. [PMID: 27582103 DOI: 10.1152/ajprenal.00353.2016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/25/2016] [Indexed: 01/17/2023] Open
Abstract
The chloride intracellular channel (CLIC) 5A is expressed at very high levels in renal glomeruli, in both endothelial cells (EC) and podocytes. CLIC5A stimulates Rac1- and phosphatidylinositol (4,5)-bisphosphate-dependent ERM (ezrin, radixin, moesin) activation. ERM proteins, in turn, function in lumen formation and in the development of actin-based cellular projections. In mice lacking CLIC5A, ERM phosphorylation is profoundly reduced in podocytes, but preserved in glomerular EC. Since glomerular EC also express CLIC4, we reasoned that, if CLIC4 activates ERM proteins like CLIC5A, then CLIC4 could compensate for the CLIC5A loss in glomerular EC. In glomeruli of CLIC5-deficient mice, CLIC4 expression was upregulated and colocalized with moesin and ezrin in glomerular EC, but not in podocytes. In cultured glomerular EC, CLIC4 silencing reduced ERM phosphorylation and cytoskeletal association, and expression of exogenous CLIC4 or CLIC5A rescued ERM de-phosphorylation due to CLIC4 silencing. In mice lacking either CLIC4 or CLIC5, ERM phosphorylation was retained in glomerular EC, but, in mice lacking both CLIC4 and CLIC5, glomerular EC ERM phosphorylation was profoundly reduced. Although glomerular EC fenestrae developed normally in dual CLIC4/CLIC5-deficient mice, the density of fenestrae declined substantially by 8 mo of age, along with the deposition of subendothelial electron-lucent material. The dual CLIC4/CLIC5-deficient mice developed spontaneous proteinuria, glomerular cell proliferation, and matrix deposition. Thus CLIC4 stimulates ERM activation and can compensate for CLIC5A in glomerular EC. The findings indicate that CLIC4/CLIC5A-mediated ERM activation is required for maintenance of the glomerular capillary architecture.
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Affiliation(s)
- Mahtab Tavasoli
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Abass Al-Momany
- Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada; and
| | - Xin Wang
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Laiji Li
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - John C Edwards
- Department of Internal Medicine, St. Louis University, St. Louis, Missouri
| | - Barbara J Ballermann
- Department of Medicine, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada; .,Department of Physiology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada; and
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Braun A, Caesar NM, Dang K, Myers KA. High-resolution Time-lapse Imaging and Automated Analysis of Microtubule Dynamics in Living Human Umbilical Vein Endothelial Cells. J Vis Exp 2016. [PMID: 27584860 PMCID: PMC5091855 DOI: 10.3791/54265] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The physiological process by which new vasculature forms from existing vasculature requires specific signaling events that trigger morphological changes within individual endothelial cells (ECs). These processes are critical for homeostatic maintenance such as wound healing, and are also crucial in promoting tumor growth and metastasis. EC morphology is defined by the organization of the cytoskeleton, a tightly regulated system of actin and microtubule (MT) dynamics that is known to control EC branching, polarity and directional migration, essential components of angiogenesis. To study MT dynamics, we used high-resolution fluorescence microscopy coupled with computational image analysis of fluorescently-labeled MT plus-ends to investigate MT growth dynamics and the regulation of EC branching morphology and directional migration. Time-lapse imaging of living Human Umbilical Vein Endothelial Cells (HUVECs) was performed following transfection with fluorescently-labeled MT End Binding protein 3 (EB3) and Mitotic Centromere Associated Kinesin (MCAK)-specific cDNA constructs to evaluate effects on MT dynamics. PlusTipTracker software was used to track EB3-labeled MT plus ends in order to measure MT growth speeds and MT growth lifetimes in time-lapse images. This methodology allows for the study of MT dynamics and the identification of how localized regulation of MT dynamics within sub-cellular regions contributes to the angiogenic processes of EC branching and migration.
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Affiliation(s)
- Alexander Braun
- Department of Biological Sciences, University of the Sciences in Philadelphia
| | - Nicole M Caesar
- Department of Biological Sciences, University of the Sciences in Philadelphia
| | - Kyvan Dang
- Department of Biological Sciences, University of the Sciences in Philadelphia
| | - Kenneth A Myers
- Department of Biological Sciences, University of the Sciences in Philadelphia;
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Falcon BL, Chintharlapalli S, Uhlik MT, Pytowski B. Antagonist antibodies to vascular endothelial growth factor receptor 2 (VEGFR-2) as anti-angiogenic agents. Pharmacol Ther 2016; 164:204-25. [PMID: 27288725 DOI: 10.1016/j.pharmthera.2016.06.001] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Interaction of numerous signaling pathways in endothelial and mesangial cells results in exquisite control of the process of physiological angiogenesis, with a central role played by vascular endothelial growth factor receptor 2 (VEGFR-2) and its cognate ligands. However, deregulated angiogenesis participates in numerous pathological processes. Excessive activation of VEGFR-2 has been found to mediate tissue-damaging vascular changes as well as the induction of blood vessel expansion to support the growth of solid tumors. Consequently, therapeutic intervention aimed at inhibiting the VEGFR-2 pathway has become a mainstay of treatment in cancer and retinal diseases. In this review, we introduce the concepts of physiological and pathological angiogenesis, the crucial role played by the VEGFR-2 pathway in these processes, and the various inhibitors of its activity that have entered the clinical practice. We primarily focus on the development of ramucirumab, the antagonist monoclonal antibody (mAb) that inhibits VEGFR-2 and has recently been approved for use in patients with gastric, colorectal, and lung cancers. We examine in-depth the pre-clinical studies using DC101, the mAb to mouse VEGFR-2, which provided a conceptual foundation for the role of VEGFR-2 in physiological and pathological angiogenesis. Finally, we discuss further clinical development of ramucirumab and the future of targeting the VEGF pathway for the treatment of cancer.
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Chaqour B. Regulating the regulators of angiogenesis by CCN1 and taking it up a Notch. J Cell Commun Signal 2016; 10:259-261. [PMID: 27146903 DOI: 10.1007/s12079-016-0328-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 05/02/2016] [Indexed: 01/16/2023] Open
Abstract
CCN1 is encoded by an extracellular matrix protein-gene that is essential for the proper development of the cardiovascular system and the control of angiogenesis, inflammation, progenitor cell lineage commitment and extracellular matrix protein remodeling during the adult life. High-precision genetic models of tissue-specific gene deletion demonstrated a pivotal role of CCN1 in providing positional information to angiogenic endothelial cells (ECs) during the outgrowth and maturation of nascent blood vessel sprouts, fine-controlling Notch-dependent inter-endothelial cell communications and mediating interaction with inflammatory cells. Some of these pleiotropic activities of CCN1 are unique among proteins of the extracellular matrix. Thus, CCN1 represents a model molecule for investigating and unraveling novel aspects of extracellular protein signaling in vascular development and diseases.
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Affiliation(s)
- Brahim Chaqour
- Department of Cell Biology, State University of New York - SUNY Downstate Medical Center, 450 Clarkson Avenue, Box 5, Brooklyn, NY, 11203, USA. .,Department of Ophthalmology, State University of New York - SUNY Downstate Medical Center, 450 Clarkson Avenue, Box 5, Brooklyn, NY, 11203, USA. .,SUNY Eye Institute, 450 Clarkson Avenue, Box 5, Brooklyn, NY, 11203, USA.
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Bookholt FD, Monsuur HN, Gibbs S, Vermolen FJ. Mathematical modelling of angiogenesis using continuous cell-based models. Biomech Model Mechanobiol 2016; 15:1577-1600. [PMID: 27037954 PMCID: PMC5106520 DOI: 10.1007/s10237-016-0784-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 03/15/2016] [Indexed: 11/25/2022]
Abstract
In this work, we develop a mathematical formalism based on a 3D in vitro model that is used to simulate the early stages of angiogenesis. The model treats cells as individual entities that are migrating as a result of chemotaxis and durotaxis. The phenotypes used here are endothelial cells that can be distinguished into stalk and tip (leading) cells. The model takes into account the dynamic interaction and interchange between both phenotypes. Next to the cells, the model takes into account several proteins such as vascular endothelial growth factor, delta-like ligand 4, urokinase plasminogen activator and matrix metalloproteinase, which are computed through the solution of a system of reaction–diffusion equations. The method used in the present study is classified into the hybrid approaches. The present study, implemented in three spatial dimensions, demonstrates the feasibility of the approach that is qualitatively confirmed by experimental results.
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Affiliation(s)
- F D Bookholt
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
| | - H N Monsuur
- Department of Dermatology (VUmc), VU University Medical Center, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - S Gibbs
- Department of Dermatology (VUmc), VU University Medical Center, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - F J Vermolen
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands.
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Tattersall IW, Du J, Cong Z, Cho BS, Klein AM, Dieck CL, Chaudhri RA, Cuervo H, Herts JH, Kitajewski J. In vitro modeling of endothelial interaction with macrophages and pericytes demonstrates Notch signaling function in the vascular microenvironment. Angiogenesis 2016; 19:201-15. [PMID: 26965898 DOI: 10.1007/s10456-016-9501-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Accepted: 02/17/2016] [Indexed: 01/10/2023]
Abstract
Angiogenesis is regulated by complex interactions between endothelial cells and support cells of the vascular microenvironment, such as tissue myeloid cells and vascular mural cells. Multicellular interactions during angiogenesis are difficult to study in animals and challenging in a reductive setting. We incorporated stromal cells into an established bead-based capillary sprouting assay to develop assays that faithfully reproduce major steps of vessel sprouting and maturation. We observed that macrophages enhance angiogenesis, increasing the number and length of endothelial sprouts, a property we have dubbed "angiotrophism." We found that polarizing macrophages toward a pro-inflammatory profile further increased their angiotrophic stimulation of vessel sprouting, and this increase was dependent on macrophage Notch signaling. To study endothelial/pericyte interactions, we added vascular pericytes directly to the bead-bound endothelial monolayer. These pericytes formed close associations with the endothelial sprouts, causing increased sprout number and vessel caliber. We found that Jagged1 expression and Notch signaling are essential for the growth of both endothelial cells and pericytes and may function in their interaction. We observed that combining endothelial cells with both macrophages and pericytes in the same sprouting assay has multiplicative effects on sprouting. These results significantly improve bead-capillary sprouting assays and provide an enhanced method for modeling interactions between the endothelium and the vascular microenvironment. Achieving this in a reductive in vitro setting represents a significant step toward a better understanding of the cellular elements that contribute to the formation of mature vasculature.
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Affiliation(s)
| | - Jing Du
- Obstetrics/Gynecology, Columbia University, New York, NY, USA
- Pathology and Cell Biology, Columbia University, New York, NY, USA
| | | | - Bennet S Cho
- Obstetrics/Gynecology, Columbia University, New York, NY, USA
| | - Alyssa M Klein
- Obstetrics/Gynecology, Columbia University, New York, NY, USA
| | - Chelsea L Dieck
- Obstetrics/Gynecology, Columbia University, New York, NY, USA
| | | | - Henar Cuervo
- Obstetrics/Gynecology, Columbia University, New York, NY, USA
| | - James H Herts
- Obstetrics/Gynecology, Columbia University, New York, NY, USA
| | - Jan Kitajewski
- Obstetrics/Gynecology, Columbia University, New York, NY, USA.
- Pathology and Cell Biology, Columbia University, New York, NY, USA.
- Physiology and Biophysics, University of Illinois Chicago, College of Medicine, Chicago, IL, USA.
- Columbia University Medical Center, 1130 St. Nicholas Avenue, ICRC 926, New York, NY, 10032, USA.
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Cao Z, Lis R, Ginsberg M, Chavez D, Shido K, Rabbany SY, Fong GH, Sakmar TP, Rafii S, Ding BS. Targeting of the pulmonary capillary vascular niche promotes lung alveolar repair and ameliorates fibrosis. Nat Med 2016; 22:154-62. [PMID: 26779814 DOI: 10.1038/nm.4035] [Citation(s) in RCA: 190] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 12/15/2015] [Indexed: 02/08/2023]
Abstract
Although the lung can undergo self-repair after injury, fibrosis in chronically injured or diseased lungs can occur at the expense of regeneration. Here we study how a hematopoietic-vascular niche regulates alveolar repair and lung fibrosis. Using intratracheal injection of bleomycin or hydrochloric acid in mice, we show that repetitive lung injury activates pulmonary capillary endothelial cells (PCECs) and perivascular macrophages, impeding alveolar repair and promoting fibrosis. Whereas the chemokine receptor CXCR7, expressed on PCECs, acts to prevent epithelial damage and ameliorate fibrosis after a single round of treatment with bleomycin or hydrochloric acid, repeated injury leads to suppression of CXCR7 expression and recruitment of vascular endothelial growth factor receptor 1 (VEGFR1)-expressing perivascular macrophages. This recruitment stimulates Wnt/β-catenin-dependent persistent upregulation of the Notch ligand Jagged1 (encoded by Jag1) in PCECs, which in turn stimulates exuberant Notch signaling in perivascular fibroblasts and enhances fibrosis. Administration of a CXCR7 agonist or PCEC-targeted Jag1 shRNA after lung injury promotes alveolar repair and reduces fibrosis. Thus, targeting of a maladapted hematopoietic-vascular niche, in which macrophages, PCECs and perivascular fibroblasts interact, may help to develop therapy to spur lung regeneration and alleviate fibrosis.
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Affiliation(s)
- Zhongwei Cao
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York, USA.,Laboratory of Birth Defects and Related Diseases of Women and Children, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Raphael Lis
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | | | - Deebly Chavez
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Koji Shido
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Sina Y Rabbany
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York, USA.,Bioengineering Program, Hofstra University, Hempstead, New York, USA
| | - Guo-Hua Fong
- Department of Cell Biology, University of Connecticut, Farmington, Connecticut, USA
| | - Thomas P Sakmar
- Laboratory of Chemical Biology &Signal Transduction, Rockefeller University, New York, New York, USA.,Division of Neurogeriatrics, Center for Alzheimer Research, Karolinska Institutet, Huddinge, Sweden
| | - Shahin Rafii
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Division of Regenerative Medicine, Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Bi-Sen Ding
- Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA.,Laboratory of Birth Defects and Related Diseases of Women and Children, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.,Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA
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50
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Shi J, Wei PK. Interleukin-8: A potent promoter of angiogenesis in gastric cancer. Oncol Lett 2015; 11:1043-1050. [PMID: 26893688 DOI: 10.3892/ol.2015.4035] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 11/30/2015] [Indexed: 12/21/2022] Open
Abstract
Angiogenesis is a critical process in the development of tumor malignancy and occurs at various stages of tumor progression. Interleukin-8 (IL-8) is a pro-angiogenic factor produced by tumor-infiltrating macrophages that has been revealed to facilitate the development of angiogenesis in various cancers. However, whether IL-8 activates angiogenesis in gastric cancer remains unclear. The present study investigated the effect of IL-8 on the migration and canalization capacities of human umbilical vein endothelial cells (HUVECs). In addition, the protein and messenger RNA (mRNA) expression of selected angiogenesis markers, consisting of vascular endothelial growth factor (VEGF)-A, VEGF receptor (VEGFR)-1 and VEGFR-2, were assessed in the HUVECs. The HUVECs were co-cultured with human gastric cancer SGC7901 cells and exposed to various concentrations of IL-8 (0, 0.2, 0.5, 0.8 and 1.0 ng/ml). The migration and canalization abilities of the cells were detected by Transwell chamber and tube formation assays. Protein expression was detected using immunofluorescence and western blot analysis, and mRNA levels were assessed using reverse transcription quantitative polymerase chain reaction. The protein and mRNA levels of VEGF-A, VEGFR-1 and VEGFR-2 were measured in HUVECs cultured for 24 h. IL-8 at concentrations of 0.5, 0.8 and 1.0 ng/ml significantly promoted HUVEC cell migration (P=0.005, P=0.001 and P<0.001, respectively) and tube formation (P=0.039, P=0.003 and P<0.001, respectively). IL-8 at concentrations of 0.2, 0.5, 0.8 and 1.0 ng/ml significantly elevated the protein levels of VEGF-A (P<0.001) and VEGFR-2 (P=0.034, P<0.001, P<0.001 and P<0.001, respectively). IL-8 at concentrations of 0.8 and 1.0 ng/ml significantly elevated the protein levels of VEGF-1 (P=0.037 and P=0.002, respectively). Similarly, IL-8 at concentrations of 0.5, 0.8 and 1.0 ng/ml significantly upregulated the mRNA levels of VEGF-A (P=0.046, P=0.001 and P<0.001, respectively) and VEGFR-1 (P=0.042, P<0.001 and P<0.001, respectively). IL-8 at concentrations of 0.2, 0.5, 0.8 and 1.0 ng/ml significantly upregulated the mRNA levels of VEGFR-2 (P=0.003, P=0.005, P<0.001 and P<0.001, respectively). In conclusion, IL-8 may be a potent promoter of angiogenesis in gastric cancer.
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Affiliation(s)
- Jun Shi
- Department of Traditional Chinese Medicine, Shanghai Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P.R. China
| | - Pin-Kang Wei
- Department of Traditional Chinese Medicine, Shanghai Changzheng Hospital, The Second Military Medical University, Shanghai 200003, P.R. China
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