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Takashima S, Okamura E, Ichiyama Y, Nishi K, Shimizu A, Watanabe C, Muto M, Matsumoto S, Tsukiyama-Fujii S, Tsukiyama T, Ogita H, Nishi E, Ohji M, Sugiyama F, Takahashi S, Mizuno S, Mizutani KI, Ema M. Null mutation of exocyst complex component 3-like does not affect vascular development in mice. Exp Anim 2024; 73:93-100. [PMID: 37661429 PMCID: PMC10877151 DOI: 10.1538/expanim.23-0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 08/27/2023] [Indexed: 09/05/2023] Open
Abstract
Exocyst is an octameric protein complex implicated in exocytosis. The exocyst complex is highly conserved among mammalian species, but the physiological function of each subunit in exocyst remains unclear. Previously, we identified exocyst complex component 3-like (Exoc3l) as a gene abundantly expressed in embryonic endothelial cells and implicated in the process of angiogenesis in human umbilical cord endothelial cells. Here, to reveal the physiological roles of Exoc3l during development, we generated Exoc3l knockout (KO) mice by genome editing with CRISPR/Cas9. Exoc3l KO mice were viable and showed no significant phenotype in embryonic angiogenesis or postnatal retinal angiogenesis. Exoc3l KO mice also showed no significant alteration in cholesterol homeostasis or insulin secretion, although several reports suggest an association of Exoc3l with these processes. Despite the implied roles, Exoc3l KO mice exhibited no apparent phenotype in vascular development, cholesterol homeostasis, or insulin secretion.
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Affiliation(s)
- Satsuki Takashima
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Eiichi Okamura
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Yusuke Ichiyama
- Department of Ophthalmology, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Kiyoto Nishi
- Department of Pharmacology, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Akio Shimizu
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Chisato Watanabe
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Masanaga Muto
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Shoma Matsumoto
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Setsuko Tsukiyama-Fujii
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Tomoyuki Tsukiyama
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Hisakazu Ogita
- Division of Molecular Medical Biochemistry, Department of Biochemistry and Molecular Biology, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Eiichiro Nishi
- Department of Pharmacology, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Masahito Ohji
- Department of Ophthalmology, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center in Transborder Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Satoru Takahashi
- Laboratory Animal Resource Center in Transborder Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center in Transborder Medical Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Ken-Ichi Mizutani
- Laboratory of Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Kobe Gakuin University, 1-1-3 Minatojima, Chuo-ku, Kobe, Hyogo 650-8586, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
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Akiyama T, Sadahiro T, Yamada Y, Fujita R, Abe Y, Nakano K, Honda S, Ema M, Kubota Y, Sakai S, Hizawa N, Ieda M. Flk1 Deficiency and Hypoxia Synergistically Promote Endothelial Dysfunction, Vascular Remodeling, and Pulmonary Hypertension. Arterioscler Thromb Vasc Biol 2023; 43:1668-1683. [PMID: 37534464 DOI: 10.1161/atvbaha.123.319266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/11/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND The mechanisms underlying pulmonary hypertension (PH) remain largely unknown; further, why advanced vascular remodeling preferentially occurs in arterioles is yet to be answered. VEGF (vascular endothelial growth factor) regulates angiogenesis through Flk1 (fetal liver kinase 1) and Flt1 (fms-like tyrosine kinase 1) on endothelial cells (ECs), which may be related to PH pathogenesis. However, spatiotemporal expression patterns of Flk1 and Flt1 in the pulmonary vascular system and the role of endothelial Flk1 in PH development remain poorly understood. METHODS We analyzed multiple reporter mice, including Flk1-GFP (green fluorescent protein) bacterial artificial chromosome transgenic (Tg), Flt1-DsRed bacterial artificial chromosome Tg, and Flk1-GFP/Flt1-DsRed double Tg mice, to determine the spatiotemporal expression of Flk1 and Flt1 in hypoxia-induced PH. We also used Cdh5CreERT2/Flk1f/f/Tomato (Flk1-KO [knockout]) mice to induce EC-specific Flk1 deletion and lineage tracing in chronic hypoxia. RESULTS Flk1 was specifically expressed in the ECs of small pulmonary vessels, including arterioles. Conversely, Flt1 was more broadly expressed in the ECs of large- to small-sized vessels in adult mouse lungs. Intriguingly, Flk1+ ECs were transiently increased in hypoxia with proliferation, whereas Flt1 expression was unchanged. Flk1-KO mice did not exhibit pulmonary vascular remodeling nor PH in normoxia; however, the arteriolar ECs changed to a cuboidal shape with protrusion. In hypoxia, Flk1 deletion exacerbated EC dysfunction and reduced their number via apoptosis. Additionally, Flk1 deletion promoted medial thickening and neointimal formation in arterioles and worsened PH. Mechanistically, lineage tracing revealed that neointimal cells were derived from Flk1-KO ECs. Moreover, RNA sequencing in pulmonary ECs demonstrated that Flk1 deletion and hypoxia synergistically activated multiple pathways, including cell cycle, senescence/apoptosis, and cytokine/growth factor, concomitant with suppression of cell adhesion and angiogenesis, to promote vascular remodeling. CONCLUSIONS Flk1 and Flt1 were differentially expressed in pulmonary ECs. Flk1 deficiency and hypoxia jointly dysregulated arteriolar ECs to promote vascular remodeling. Thus, dysfunction of Flk1+ ECs may contribute to the pathogenesis of advanced vascular remodeling in pulmonary arterioles.
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Affiliation(s)
- Tatsuya Akiyama
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
- Department of Respiratory Medicine (T.A., N.H.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Taketaro Sadahiro
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yu Yamada
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Ryo Fujita
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
- Division of Regenerative Medicine, Transborder Medical Research Center (R.F.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yuto Abe
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Koji Nakano
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Seiichiro Honda
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masatsugu Ema
- Division of Regenerative Medicine, Transborder Medical Research Center (R.F.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yoshiaki Kubota
- Departments of Anatomy (Y.K.), Keio University School of Medicine, Tokyo, Japan
| | - Satoshi Sakai
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
- Faculty of Health Science, Tsukuba University of Technology, Japan (S.S.)
| | - Nobuyuki Hizawa
- Department of Respiratory Medicine (T.A., N.H.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masaki Ieda
- Department of Cardiology (T.A., T.S., Y.Y., R.F., Y.A., K.N., S.H., S.S., M.I.), Institute of Medicine, University of Tsukuba, Ibaraki, Japan
- Cardiology (M.I.), Keio University School of Medicine, Tokyo, Japan
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Utagawa K, Shin T, Yamada H, Ochi H, Sunamura S, Unno A, Akazawa C, Ema M, Takeda S, Okawa A, Sato S. Three-dimensional visualization of neural networks inside bone by Osteo-DISCO protocol and alteration of bone remodeling by surgical nerve ablation. Sci Rep 2023; 13:4674. [PMID: 36949102 PMCID: PMC10033912 DOI: 10.1038/s41598-023-30492-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 02/24/2023] [Indexed: 03/24/2023] Open
Abstract
Bone is one of the largest organ systems in humans and is considered to regulate whole-body homeostasis in cooperation with other organs. We have previously reported that a sympathetic or sensory nervous system inside bone regulates bone homeostasis. However, the detailed regulatory mechanism, including the distribution of nerves inside bone, remains unknown. Although a two-dimensional histological analysis has been widely used to evaluate the structure of nerves or blood vessels, the actual structure is more complex, suggesting that it should be evaluated three-dimensionally. Here, we established a novel bone tissue clearing technique (Osteo-DISCO) for murine bones which enabled us to visualize the detailed distribution of nerves or blood vessels inside bone. Interestingly, we found that there is a specific nerve entry site in each long bone and that surgical ablation of the specific nerve fibers entering bone tissue led to decreased bone formation and impaired bone regeneration. Furthermore, we revealed that the administration of calcitonin gene-related peptide (CGRP), which is primarily released from sensory nerves, suppressed the bone loss caused by surgical nerve ablation. An in vitro study also indicated that CGRP directly promotes osteoblast activity, suggesting that sensory nerves inside bone can regulate osteogenesis via the secretion of CGRP.
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Affiliation(s)
- Kurando Utagawa
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Takaei Shin
- Faculty of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan
- Japanese Red Cross Ishinomaki Hospital, Miyagi, 986-8522, Japan
| | - Hironori Yamada
- Department of Family Medicine, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan
| | - Hiroki Ochi
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, 359-8555, Japan
| | - Satoko Sunamura
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Aiko Unno
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Chihiro Akazawa
- Intractable Disease Research Center, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
- Department of Biochemistry and Biophysics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Shiga, 520-2192, Japan
| | - Shu Takeda
- Division of Endocrinology, Toranomon Hospital Endocrine Center, Tokyo, 105-8470, Japan
| | - Atsushi Okawa
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Shingo Sato
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan.
- Center for Innovative Cancer Treatment, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan.
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4
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Computational Model Exploring Characteristic Pattern Regulation in Periventricular Vessels. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122069. [PMID: 36556434 PMCID: PMC9788473 DOI: 10.3390/life12122069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/26/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022]
Abstract
The developing neocortical vasculature exhibits a distinctive pattern in each layer. In murine embryos, vessels in the cortical plate (CP) are vertically oriented, whereas those in the intermediate zone (IZ) and the subventricular zone (SVZ) form a honeycomb structure. The formation of tissue-specific vessels suggests that the behavior of endothelial cells is under a specific regulatory regime in each layer, although the mechanisms involved remain unknown. In the present study, we aimed to explore the conditions required to form these vessel patterns by conducting simulations using a computational model. We developed a novel model framework describing the collective migration of endothelial cells to represent the angiogenic process and performed a simulation using two-dimensional approximation. The attractive and repulsive guidance of tip cells was incorporated into the model based on the function and distribution of guidance molecules such as VEGF and Unc ligands. It is shown that an appropriate combination of guidance effects reproduces both the parallel straight pattern in the CP and meshwork patterns in the IZ/SVZ. Our model demonstrated how the guidance of the tip cell causes a variety of vessel patterns and predicted how tissue-specific vascular formation was regulated in the early development of neocortical vessels.
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5
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Namiki J, Suzuki S, Shibata S, Kubota Y, Kaneko N, Yoshida K, Yamaguchi R, Matsuzaki Y, Masuda T, Ishihama Y, Sawamoto K, Okano H. Chitinase-like protein 3: A novel niche factor for mouse neural stem cells. Stem Cell Reports 2022; 17:2704-2717. [PMID: 36368330 PMCID: PMC9768575 DOI: 10.1016/j.stemcr.2022.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/12/2022] Open
Abstract
The concept of a perivascular niche has been proposed for neural stem cells (NSCs). This study examined endothelial colony-forming cell (ECFC)-secreted proteins as potential niche factors for NSCs. Intraventricle infusion with ECFC-secreted proteins increased the number of NSCs. ECFC-secreted proteins were more effective in promoting NSC self-renewal than marrow stromal cell (MSC)-secreted proteins. Differential proteomics analysis of MSC-secreted and ECFC-secreted proteins was performed, which revealed chitinase-like protein 3 (CHIL3; also called ECF-L or Ym1) as a candidate niche factor for NSCs. Experiments with recombinant CHIL3, small interfering RNA, and neutralizing antibodies demonstrated that CHIL3 stimulated NSC self-renewal with neurogenic propensity. CHIL3 was endogenously expressed in the neurogenic niche of the brain and retina as well as in the injured brain and retina. Transcriptome and phosphoproteome analyses revealed that CHIL3 activated various genes and proteins associated with NSC maintenance or neurogenesis. Thus, CHIL3 is a novel niche factor for NSCs.
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Affiliation(s)
- Jun Namiki
- Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan,Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan,Corresponding author
| | - Sayuri Suzuki
- Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan,Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan
| | - Shinsuke Shibata
- Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan
| | - Naoko Kaneko
- Department of Developmental and Regenerative Neurobiology, Institute of Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Kenji Yoshida
- Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan,Sumitomo Pharma Co. Ltd., Osaka, Osaka 541-0045, Japan
| | - Ryo Yamaguchi
- Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan,Sumitomo Pharma Co. Ltd., Osaka, Osaka 541-0045, Japan
| | - Yumi Matsuzaki
- Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan
| | - Takeshi Masuda
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0017, Japan
| | - Yasushi Ishihama
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata 997-0017, Japan,Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Kazunobu Sawamoto
- Department of Developmental and Regenerative Neurobiology, Institute of Brain Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Aichi 467-8601, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, Shinjuku, Tokyo 160-8582, Japan,Corresponding author
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6
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Tabata H, Sasaki M, Agetsuma M, Sano H, Hirota Y, Miyajima M, Hayashi K, Honda T, Nishikawa M, Inaguma Y, Ito H, Takebayashi H, Ema M, Ikenaka K, Nabekura J, Nagata KI, Nakajima K. Erratic and blood vessel-guided migration of astrocyte progenitors in the cerebral cortex. Nat Commun 2022; 13:6571. [PMID: 36323680 PMCID: PMC9630450 DOI: 10.1038/s41467-022-34184-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Astrocytes are one of the most abundant cell types in the mammalian brain. They play essential roles in synapse formation, maturation, and elimination. However, how astrocytes migrate into the gray matter to accomplish these processes is poorly understood. Here, we show that, by combinational analyses of in vitro and in vivo time-lapse observations and lineage traces, astrocyte progenitors move rapidly and irregularly within the developing cortex, which we call erratic migration. Astrocyte progenitors also adopt blood vessel-guided migration. These highly motile progenitors are generated in the restricted prenatal stages and differentiate into protoplasmic astrocytes in the gray matter, whereas postnatally generated progenitors do not move extensively and differentiate into fibrous astrocytes in the white matter. We found Cxcr4/7, and integrin β1 regulate the blood vessel-guided migration, and their functional blocking disrupts their positioning. This study provides insight into astrocyte development and may contribute to understanding the pathogenesis caused by their defects.
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Affiliation(s)
- Hidenori Tabata
- grid.440395.f0000 0004 1773 8175Department of Molecular Neurobiology, Institute for Developmental Research, Aichi Developmental Disability Center, 713-8 Kamiya, Kasugai, Aichi 480-0392 Japan ,grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Megumi Sasaki
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Masakazu Agetsuma
- grid.467811.d0000 0001 2272 1771Division of Homeostatic Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi 444-8585 Japan
| | - Hitomi Sano
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Yuki Hirota
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Michio Miyajima
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Kanehiro Hayashi
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Takao Honda
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
| | - Masashi Nishikawa
- grid.440395.f0000 0004 1773 8175Department of Molecular Neurobiology, Institute for Developmental Research, Aichi Developmental Disability Center, 713-8 Kamiya, Kasugai, Aichi 480-0392 Japan
| | - Yutaka Inaguma
- grid.440395.f0000 0004 1773 8175Department of Molecular Neurobiology, Institute for Developmental Research, Aichi Developmental Disability Center, 713-8 Kamiya, Kasugai, Aichi 480-0392 Japan
| | - Hidenori Ito
- grid.440395.f0000 0004 1773 8175Department of Molecular Neurobiology, Institute for Developmental Research, Aichi Developmental Disability Center, 713-8 Kamiya, Kasugai, Aichi 480-0392 Japan
| | - Hirohide Takebayashi
- grid.260975.f0000 0001 0671 5144Division of Neurobiology and Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8510 Japan
| | - Masatsugu Ema
- grid.410827.80000 0000 9747 6806Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192 Japan
| | - Kazuhiro Ikenaka
- grid.467811.d0000 0001 2272 1771Division of Neurobiology and Bioinformatics, National Institute for Physiological Sciences, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787 Japan
| | - Junichi Nabekura
- grid.467811.d0000 0001 2272 1771Division of Homeostatic Development, National Institute for Physiological Sciences, 38 Nishigohnaka Myodaiji-cho, Okazaki, Aichi 444-8585 Japan
| | - Koh-ichi Nagata
- grid.440395.f0000 0004 1773 8175Department of Molecular Neurobiology, Institute for Developmental Research, Aichi Developmental Disability Center, 713-8 Kamiya, Kasugai, Aichi 480-0392 Japan
| | - Kazunori Nakajima
- grid.26091.3c0000 0004 1936 9959Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582 Japan
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7
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Redder E, Kirschnick N, Bobe S, Hägerling R, Hansmeier NR, Kiefer F. Vegfr3-tdTomato, a reporter mouse for microscopic visualization of lymphatic vessel by multiple modalities. PLoS One 2021; 16:e0249256. [PMID: 34543279 PMCID: PMC8452004 DOI: 10.1371/journal.pone.0249256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 09/06/2021] [Indexed: 12/24/2022] Open
Abstract
Lymphatic vessels are indispensable for tissue fluid homeostasis, transport of solutes and dietary lipids and immune cell trafficking. In contrast to blood vessels, which are easily visible by their erythrocyte cargo, lymphatic vessels are not readily detected in the tissue context. Their invisibility interferes with the analysis of the three-dimensional lymph vessel structure in large tissue volumes and hampers dynamic intravital studies on lymphatic function and pathofunction. An approach to overcome these limitations are mouse models, which express transgenic fluorescent proteins under the control of tissue-specific promotor elements. We introduce here the BAC-transgenic mouse reporter strain Vegfr3-tdTomato that expresses a membrane-tagged version of tdTomato under control of Flt4 regulatory elements. Vegfr3-tdTomato mice inherited the reporter in a mendelian fashion and showed selective and stable fluorescence in the lymphatic vessels of multiple organs tested, including lung, kidney, heart, diaphragm, intestine, mesentery, liver and dermis. In this model, tdTomato expression was sufficient for direct visualisation of lymphatic vessels by epifluorescence microscopy. Furthermore, lymph vessels were readily visualized using a number of microscopic modalities including confocal laser scanning, light sheet fluorescence and two-photon microscopy. Due to the early onset of VEGFR-3 expression in venous embryonic vessels and the short maturation time of tdTomato, this reporter offers an interesting alternative to Prox1-promoter driven lymphatic reporter mice for instance to study the developmental differentiation of venous to lymphatic endothelial cells.
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Affiliation(s)
- Esther Redder
- European Institute of Molecular Imaging, University of Münster, Münster, Germany
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Nils Kirschnick
- European Institute of Molecular Imaging, University of Münster, Münster, Germany
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Stefanie Bobe
- European Institute of Molecular Imaging, University of Münster, Münster, Germany
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - René Hägerling
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | | | - Friedemann Kiefer
- European Institute of Molecular Imaging, University of Münster, Münster, Germany
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
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8
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Iwai R, Ishii T, Fukushima Y, Okamoto T, Ichihashi M, Sasaki Y, Mizuatni KI. Matcha and Its Components Control Angiogenic Potential. J Nutr Sci Vitaminol (Tokyo) 2021; 67:118-125. [PMID: 33952732 DOI: 10.3177/jnsv.67.118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The brain needs the appropriate capillary networks to maintain normal brain function. Since previous studies showed age-related decrease in the cortical capillaries, it is suggested that protection against capillary aging is critical for maintaining brain function. Epidemiological studies have indicated that brain functions were protected from age-related decline by the long-term consumption of matcha. However, whether matcha has protective effects on capillary aging has not been studied yet. In this study, we utilized Flt1-DsR mice that expressed a red fluorescent protein in vascular endothelial cells to visualize cortical capillaries clearly. We found that cortical capillary density decreased in aging Flt1-DsR mice. Our results of the aortic ring assay and tube formation assay revealed that matcha and its components vitamin K1 and lutein, which are abundant in matcha powder, enhanced the angiogenic potential. Moreover, we evaluated the effect of long-term ingestion of matcha on mouse cortical capillary aging by using imaging experiments. The capillary density of the Flt1-DsR mice, which were fed matcha-containing food, indicated the protective effects of matcha ingestion on capillary aging in a limited cortical layer. These results suggest that biological regulation of matcha and its components affect the angiogenic potential, which is related to the prevention of capillary aging.
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Affiliation(s)
- Ryota Iwai
- Graduate School of Food and Medicinal Sciences, Kobe Gakuin University.,Graduate School of Pharmaceutical Sciences, Kobe Gakuin University
| | - Takeshi Ishii
- Graduate School of Food and Medicinal Sciences, Kobe Gakuin University
| | - Yoichi Fukushima
- Department of Health Food Sciences, University of Human Arts and Sciences
| | | | | | - Yasuto Sasaki
- Graduate School of Food and Medicinal Sciences, Kobe Gakuin University
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9
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Abdelhakim M, Dohi T, Yamato M, Takada H, Sakai A, Suzuki H, Ema M, Fukuhara S, Ogawa R. A New Model for Specific Visualization of Skin Graft Neoangiogenesis Using Flt1-tdsRed BAC Transgenic Mice. Plast Reconstr Surg 2021; 148:89-99. [PMID: 34014859 DOI: 10.1097/prs.0000000000008039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Neovascularization plays a critical role in skin graft survival. Up to date, the lack of specificity to solely track the newly sprouting blood vessels has remained a limiting factor in skin graft transplantation models. Therefore, the authors developed a new model by using Flt1-tdsRed BAC transgenic mice. Flt1 is a vascular endothelial growth factor receptor expressed by sprouting endothelial cells mediating neoangiogenesis. The authors determined whether this model reliably visualizes neovascularization by quantifying tdsRed fluorescence in the graft over 14 days. METHODS Cross-transplantation of two full-thickness 1 × 1-cm dorsal skin grafts was performed between 6- to 8-week-old male Flt1 mice and KSN/Slc nude mice (n = 5). The percentage of graft area occupied by tdsRed fluorescence in the central and lateral areas of the graft on days 3, 5, 9, and 14 was determined using confocal-laser scanning microscopy. RESULTS Flt1+ endothelial cells migrating from the transgenic wound bed into the nude graft were first visible in the reticular dermis of the graft center on day 3 (0.5 ± 0.1; p < 0.05). Peak neovascularization was observed on day 9 in the lateral and central parts, increasing by 2- to 4-fold (4.6 ± 0.8 and 4.2 ± 0.9; p < 0.001). Notably, some limited neoangiogenesis was displayed within the Flt grafts on nude mice, particularly in the center. No neovascularization was observed from the wound margins. CONCLUSION The ability of the Flt1-tdsRed transgenic mouse model to efficiently identify the origin of the skin-graft vasculature and visualize graft neovascularization over time suggests its potential utility for developing techniques that promote graft neovascularization.
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Affiliation(s)
- Mohamed Abdelhakim
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Teruyuki Dohi
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Mizuho Yamato
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Hiroya Takada
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Atsushi Sakai
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Hidenori Suzuki
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Masatsugu Ema
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Shigetomo Fukuhara
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
| | - Rei Ogawa
- From the Department of Plastic, Reconstructive, and Aesthetic Surgery, the Department of Pharmacology, and the Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School; and the Department of Stem Cells & Human Disease Models, Shiga University of Medical Science
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10
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Mizutani KI. [Spatiotemporally Dependent Vascularization Regulates Neural Stem and Progenitor Cells]. YAKUGAKU ZASSHI 2021; 141:335-341. [PMID: 33642501 DOI: 10.1248/yakushi.20-00198-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Blood vessels including arteries, veins, and capillaries, are densely spread throughout the body. One round of systemic blood circulation through these blood vessels occurs approximately every minute, and blood sent by the heart transports oxygen, nutrients, and fluid to cells throughout the body. This nourishes cells, tissues, and organs and maintains homeostasis. The relatively simple structure of blood vessels consists of endothelial cells surrounded by a basal lamina and pericytes covering the outer layer. However, blood vessels patterning markedly varies among tissues. The diversity and plasticity of vascular networks are considered vital for this system to facilitate distinct functions for each tissue. Recent studies revealed that blood vessels create a tissue-specific niche, thus attracting attention as biologically active sites for tissue development. This vascular niche establishes specialized microenvironments through both direct physical contact and secreted-soluble factors. Here, we review advances in our understanding of how the vascular niche is utilized by neural stem and progenitor cells during neocortical development, and describe future perspectives regarding new treatment strategies for neural diseases utilizing this vascular niche.
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Affiliation(s)
- Ken-Ichi Mizutani
- Laboratory of Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Kobe Gakuin University
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11
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Kinugasa-Katayama Y, Watanabe Y, Hisamitsu T, Arima Y, Liu NM, Tomimatsu A, Harada Y, Arai Y, Urasaki A, Kawamura T, Saito Y, Nakagawa O. Tmem100-BAC-EGFP mice to selectively mark and purify embryonic endothelial cells of large caliber arteries in mid-gestational vascular formation. Genesis 2021; 59:e23416. [PMID: 33651473 DOI: 10.1002/dvg.23416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 02/13/2021] [Accepted: 02/13/2021] [Indexed: 11/10/2022]
Abstract
Embryonic vascular development is achieved through the complex arrays of differentiation, proliferation, migration and mutual interaction of different cell types, and visualization as well as purification of unique cell populations are fundamental in studying its detailed mechanisms using in vivo experimental models. We previously demonstrated that Tmem100 was a novel endothelial gene encoding a small transmembrane protein, and that Tmem100 null mice showed embryonic lethality due to severe impairment of vascular formation. In the present study, we generated an EGFP reporter mouse line using a 216 kb genomic region containing mouse Tmem100 gene. A novel line designated as Tmem100-BAC-EGFP mice precisely recapitulated the Tmem100 expression profile at the mid-gestational stage, which was highly enriched in endothelial cells of large caliber arteries in mouse embryos. FACS experiments demonstrated that Tmem100-BAC-EGFP mice served to selectively purify a specific population of arterial endothelial cells, indicating their usefulness not only for the research concerning Tmem100 expression and function but also for comparative analysis of multiple endothelial cell subgroups in embryonic vascular development.
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Affiliation(s)
- Yumi Kinugasa-Katayama
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Yusuke Watanabe
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Graduate School of Medical Sciences, Nara Medical University, Kashihara, Nara, Japan
| | - Takashi Hisamitsu
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Yuichiro Arima
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Kumamoto, Japan
| | - Norika M Liu
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Ayaka Tomimatsu
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Graduate School of Medical Sciences, Nara Medical University, Kashihara, Nara, Japan
| | - Yukihiro Harada
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Laboratory of Stem Cell and Regenerative Medicine, Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Yuji Arai
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Laboratory of Animal Experiment and Medical Management, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Akihiro Urasaki
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Teruhisa Kawamura
- Laboratory of Stem Cell and Regenerative Medicine, Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Yoshihiko Saito
- Graduate School of Medical Sciences, Nara Medical University, Kashihara, Nara, Japan.,Department of Cardiovascular Medicine, Nara Medical University, Kashihara, Nara, Japan
| | - Osamu Nakagawa
- Department of Molecular Physiology, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Graduate School of Medical Sciences, Nara Medical University, Kashihara, Nara, Japan
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12
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Mizutani KI. [Neuro-vascular Interactions during Neocortical Development-Systematic and Accurate Regulatory Mechanisms of VEGF Signaling]. YAKUGAKU ZASSHI 2020; 140:521-527. [PMID: 32238635 DOI: 10.1248/yakushi.19-00221-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Blood vessels supply oxygen and nutrients to all the cells in a living body, and provide essential transport routes for collecting waste products. For these functions, blood vessel networks should be appropriately formed in each tissue. Therefore, blood vessels are one of the earliest organs formed during the developmental process. Development of the blood vessel system promotes tissue differentiation and organ morphogenesis, allowing each organ to maintain its unique functions under changing metabolic conditions. Blood vessels have a relatively simple structure, consisting of endothelial cells covering the inner layer, and pericytes or smooth muscle cells surrounding the outside. The structure of the vascular network is extremely diverse, with blood vessels uniquely organized depending on the tissues they serve, to create tissue-specific microenvironments. How are such tissue-specific vascular environments generated? Over the years, anatomical findings have accumulated to confirm this vascular diversity. However, the molecular basis for this diversity has remained unclear. In the present article, we review the mechanisms of coordinated developmental control of the vascular and neural systems in the cerebral cortex from the viewpoint of the accurate expression control of vascular endothelial growth factor (VEGF) signaling, and describe future perspectives.
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Affiliation(s)
- Ken-Ichi Mizutani
- Laboratory of Stem Cell Biology, Graduate School of Pharmaceutical Sciences, Kobe Gakuin University
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13
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Wu Y, Seong YJ, Li K, Choi D, Park E, Daghlian GH, Jung E, Bui K, Zhao L, Madhavan S, Daghlian S, Daghlian P, Chin D, Cho IT, Wong AK, Heur M, Zhang-Nunes S, Tan JC, Ema M, Wong TT, Huang AS, Hong YK. Organogenesis and distribution of the ocular lymphatic vessels in the anterior eye. JCI Insight 2020; 5:135121. [PMID: 32641580 DOI: 10.1172/jci.insight.135121] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 05/27/2020] [Indexed: 12/16/2022] Open
Abstract
Glaucoma surgeries, such as trabeculectomy, are performed to lower intraocular pressure to reduce risk of vision loss. These surgeries create a new passage in the eye that reroutes the aqueous humor outflow to the subconjunctival space, where the fluid is presumably absorbed by the conjunctival lymphatics. Here, we characterized the development and function of the ocular lymphatics using transgenic lymphatic reporter mice and rats. We found that the limbal and conjunctival lymphatic networks are progressively formed from a primary lymphatic vessel that grows from the nasal-side medial canthus region at birth. This primary lymphatic vessel immediately branches out, invades the limbus and conjunctiva, and bidirectionally encircles the cornea. As a result, the distribution of the ocular lymphatics is significantly polarized toward the nasal side, and the limbal lymphatics are directly connected to the conjunctival lymphatics. New lymphatic sprouts are produced mainly from the nasal-side limbal lymphatics, posing the nasal side of the eye as more responsive to fluid drainage and inflammatory stimuli. Consistent with this polarized distribution of the ocular lymphatics, a higher drainage efficiency was observed in the nasal side than the temporal side of the eye when injected with a fluorescent tracer. In contrast, blood vessels are evenly distributed at the anterior surface of the eyes. Also, we found that these distinct vascular distribution patterns were conserved in human eyes. Together, our study demonstrated that the ocular surface lymphatics are more densely present in the nasal side and uncovered the potential clinical benefits in selecting the nasal side as a glaucoma surgery site to improve fluid drainage.
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Affiliation(s)
- Yifan Wu
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Young Jin Seong
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Kin Li
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA.,College of Osteopathic Medicine of the Pacific, Western University of Health Sciences, Pomona, California, USA
| | - Dongwon Choi
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Eunkyung Park
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - George H Daghlian
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Eunson Jung
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Khoa Bui
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Luping Zhao
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Shrimika Madhavan
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Saren Daghlian
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Patill Daghlian
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Desmond Chin
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Il-Taeg Cho
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | | | - Martin Heur
- Department of Ophthalmology, USC Roski Eye Institute, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - Sandy Zhang-Nunes
- Department of Ophthalmology, USC Roski Eye Institute, Keck School of Medicine of USC, USC, Los Angeles, California, USA
| | - James C Tan
- Doheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, UCLA, Los Angeles, California, USA
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models Research Center for Animal Life, Science Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga, Japan
| | - Tina T Wong
- Singapore Eye Research Institute, Duke NUS Graduate Medical School, Singapore
| | - Alex S Huang
- Doheny Eye Institute and Department of Ophthalmology, David Geffen School of Medicine at UCLA, UCLA, Los Angeles, California, USA
| | - Young-Kwon Hong
- Department of Surgery and.,Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, Keck School of Medicine of USC, USC, Los Angeles, California, USA
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14
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Tee JK, Yip LX, Tan ES, Santitewagun S, Prasath A, Ke PC, Ho HK, Leong DT. Nanoparticles' interactions with vasculature in diseases. Chem Soc Rev 2019; 48:5381-5407. [PMID: 31495856 DOI: 10.1039/c9cs00309f] [Citation(s) in RCA: 185] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The ever-growing use of inorganic nanoparticles (NPs) in biomedicine provides an exciting approach to develop novel imaging and drug delivery systems, owing to the ease with which these NPs can be functionalized to cater to various applications. In cancer therapeutics, nanomedicine generally relies on the enhanced permeability and retention (EPR) effect observed in tumour vasculature to deliver anti-cancer drugs across the endothelium. However, such a phenomenon is dependent on the tumour microenvironment and is not consistently observed in all tumour types, thereby limiting drug transport to the tumour site. On the other hand, there is a rise in utilizing inorganic NPs to intentionally induce endothelial leakiness, creating a window of opportunity to control drug delivery across the endothelium. While this active targeting approach creates a similar phenomenon compared to the EPR effect arising from tumour tissues, its drug delivery applications extend beyond cancer therapeutics and into other vascular-related diseases. In this review, we summarize the current findings of the EPR effect and assess its limitations in the context of anti-cancer drug delivery systems. While the EPR effect offers a possible route for drug passage, we further explore alternative uses of NPs to create controllable endothelial leakiness within short exposures, a phenomenon we coined as nanomaterial-induced endothelial leakiness (NanoEL). Furthermore, we discuss the main mechanistic features of the NanoEL effect that make it unique from conventionally established endothelial leakiness in homeostatic and pathologic conditions, as well as examine its potential applicability in vascular-related diseases, particularly cancer. Therefore, this new paradigm changes the way inorganic NPs are currently being used for biomedical applications.
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Affiliation(s)
- Jie Kai Tee
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore 117585, Singapore.
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15
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Payne LB, Zhao H, James CC, Darden J, McGuire D, Taylor S, Smyth JW, Chappell JC. The pericyte microenvironment during vascular development. Microcirculation 2019; 26:e12554. [PMID: 31066166 PMCID: PMC6834874 DOI: 10.1111/micc.12554] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 04/29/2019] [Accepted: 05/03/2019] [Indexed: 12/22/2022]
Abstract
Vascular pericytes provide critical contributions to the formation and integrity of the blood vessel wall within the microcirculation. Pericytes maintain vascular stability and homeostasis by promoting endothelial cell junctions and depositing extracellular matrix (ECM) components within the vascular basement membrane, among other vital functions. As their importance in sustaining microvessel health within various tissues and organs continues to emerge, so does their role in a number of pathological conditions including cancer, diabetic retinopathy, and neurological disorders. Here, we review vascular pericyte contributions to the development and remodeling of the microcirculation, with a focus on the local microenvironment during these processes. We discuss observations of their earliest involvement in vascular development and essential cues for their recruitment to the remodeling endothelium. Pericyte involvement in the angiogenic sprouting context is also considered with specific attention to crosstalk with endothelial cells such as through signaling regulation and ECM deposition. We also address specific aspects of the collective cell migration and dynamic interactions between pericytes and endothelial cells during angiogenic sprouting. Lastly, we discuss pericyte contributions to mechanisms underlying the transition from active vessel remodeling to the maturation and quiescence phase of vascular development.
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Affiliation(s)
- Laura Beth Payne
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
| | - Huaning Zhao
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic State Institute and State University, Blacksburg, VA 24061, USA
| | - Carissa C. James
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Jordan Darden
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - David McGuire
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Sarah Taylor
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
| | - James W. Smyth
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Department of Biological Sciences, College of Science, Virginia Polytechnic State Institute and State University, Blacksburg, VA 24061, USA
- Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA 24016, USA
| | - John C. Chappell
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic State Institute and State University, Blacksburg, VA 24061, USA
- Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA 24016, USA
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16
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Komabayashi-Suzuki M, Yamanishi E, Watanabe C, Okamura M, Tabata H, Iwai R, Ajioka I, Matsushita J, Kidoya H, Takakura N, Okamoto T, Kinoshita K, Ichihashi M, Nagata KI, Ema M, Mizutani KI. Spatiotemporally Dependent Vascularization Is Differently Utilized among Neural Progenitor Subtypes during Neocortical Development. Cell Rep 2019; 29:1113-1129.e5. [DOI: 10.1016/j.celrep.2019.09.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 06/19/2019] [Accepted: 09/18/2019] [Indexed: 01/07/2023] Open
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17
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Thalgott JH, Dos-Santos-Luis D, Hosman AE, Martin S, Lamandé N, Bracquart D, Srun S, Galaris G, de Boer HC, Tual-Chalot S, Kroon S, Arthur HM, Cao Y, Snijder RJ, Disch F, Mager JJ, Rabelink TJ, Mummery CL, Raymond K, Lebrin F. Decreased Expression of Vascular Endothelial Growth Factor Receptor 1 Contributes to the Pathogenesis of Hereditary Hemorrhagic Telangiectasia Type 2. Circulation 2019; 138:2698-2712. [PMID: 30571259 DOI: 10.1161/circulationaha.117.033062] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Hereditary Hemorrhagic Telangiectasia type 2 (HHT2) is an inherited genetic disorder characterized by vascular malformations and hemorrhage. HHT2 results from ACVRL1 haploinsufficiency, the remaining wild-type allele being unable to contribute sufficient protein to sustain endothelial cell function. Blood vessels function normally but are prone to respond to angiogenic stimuli, leading to the development of telangiectasic lesions that can bleed. How ACVRL1 haploinsufficiency leads to pathological angiogenesis is unknown. METHODS We took advantage of Acvrl1+/- mutant mice that exhibit HHT2 vascular lesions and focused on the neonatal retina and the airway system after Mycoplasma pulmonis infection, as physiological and pathological models of angiogenesis, respectively. We elucidated underlying disease mechanisms in vitro by generating Acvrl1+/- mouse embryonic stem cell lines that underwent sprouting angiogenesis and performed genetic complementation experiments. Finally, HHT2 plasma samples and skin biopsies were analyzed to determine whether the mechanisms evident in mice are conserved in humans. RESULTS Acvrl1+/- retinas at postnatal day 7 showed excessive angiogenesis and numerous endothelial "tip cells" at the vascular front that displayed migratory defects. Vascular endothelial growth factor receptor 1 (VEGFR1; Flt-1) levels were reduced in Acvrl1+/- mice and HHT2 patients, suggesting similar mechanisms in humans. In sprouting angiogenesis, VEGFR1 is expressed in stalk cells to inhibit VEGFR2 (Flk-1, KDR) signaling and thus limit tip cell formation. Soluble VEGFR1 (sVEGFR1) is also secreted, creating a VEGF gradient that promotes orientated sprout migration. Acvrl1+/- embryonic stem cell lines recapitulated the vascular anomalies in Acvrl1+/- (HHT2) mice. Genetic insertion of either the membrane or soluble form of VEGFR1 into the ROSA26 locus of Acvrl1+/- embryonic stem cell lines prevented the vascular anomalies, suggesting that high VEGFR2 activity in Acvrl1+/- endothelial cells induces HHT2 vascular anomalies. To confirm our hypothesis, Acvrl1+/- mice were infected by Mycoplasma pulmonis to induce sustained airway inflammation. Infected Acvrl1+/- tracheas showed excessive angiogenesis with the formation of multiple telangiectases, vascular defects that were prevented by VEGFR2 blocking antibodies. CONCLUSIONS Our findings demonstrate a key role of VEGFR1 in HHT2 pathogenesis and provide mechanisms explaining why HHT2 blood vessels respond abnormally to angiogenic signals. This supports the case for using anti-VEGF therapy in HHT2.
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Affiliation(s)
- Jérémy H Thalgott
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine (Nephrology), Leiden University Medical Center, The Netherlands (J.H.T., G.G., H.C.d.B., T.J.R., K.R., F.L.)
| | - Damien Dos-Santos-Luis
- CNRS UMR 7241, INSERM U1050, Collège de France, Paris (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- MEMOLIFE Laboratory of Excellence and PSL Research University, Paris, France (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
| | - Anna E Hosman
- St. Antonius Hospital, Nieuwegein, The Netherlands (A.E.H., S.K., R.J.S., F.D., J.J.M.)
| | - Sabrina Martin
- CNRS UMR 7241, INSERM U1050, Collège de France, Paris (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- MEMOLIFE Laboratory of Excellence and PSL Research University, Paris, France (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
| | - Noël Lamandé
- CNRS UMR 7241, INSERM U1050, Collège de France, Paris (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- MEMOLIFE Laboratory of Excellence and PSL Research University, Paris, France (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
| | - Diane Bracquart
- CNRS UMR 7241, INSERM U1050, Collège de France, Paris (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- MEMOLIFE Laboratory of Excellence and PSL Research University, Paris, France (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
| | - Samly Srun
- CNRS UMR 7241, INSERM U1050, Collège de France, Paris (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- MEMOLIFE Laboratory of Excellence and PSL Research University, Paris, France (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
| | - Georgios Galaris
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine (Nephrology), Leiden University Medical Center, The Netherlands (J.H.T., G.G., H.C.d.B., T.J.R., K.R., F.L.)
| | - Hetty C de Boer
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine (Nephrology), Leiden University Medical Center, The Netherlands (J.H.T., G.G., H.C.d.B., T.J.R., K.R., F.L.)
| | - Simon Tual-Chalot
- Institute of Genetic Medicine, Centre of Life, Newcastle University, United Kingdom (S.T.-C., H.M.A., )
| | - Steven Kroon
- St. Antonius Hospital, Nieuwegein, The Netherlands (A.E.H., S.K., R.J.S., F.D., J.J.M.)
| | - Helen M Arthur
- Institute of Genetic Medicine, Centre of Life, Newcastle University, United Kingdom (S.T.-C., H.M.A., )
| | - Yihai Cao
- Department of Microbiology, Tumor and cell Biology, Karolinska Institute, Stockholm, Sweden (Y.C.)
| | - Repke J Snijder
- St. Antonius Hospital, Nieuwegein, The Netherlands (A.E.H., S.K., R.J.S., F.D., J.J.M.)
| | - Frans Disch
- St. Antonius Hospital, Nieuwegein, The Netherlands (A.E.H., S.K., R.J.S., F.D., J.J.M.)
| | - Johannes J Mager
- St. Antonius Hospital, Nieuwegein, The Netherlands (A.E.H., S.K., R.J.S., F.D., J.J.M.)
| | - Ton J Rabelink
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine (Nephrology), Leiden University Medical Center, The Netherlands (J.H.T., G.G., H.C.d.B., T.J.R., K.R., F.L.)
| | - Christine L Mummery
- Department of Anatomy and Embryology, Leiden University Medical Center, The Netherlands (C.L.M.)
| | - Karine Raymond
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine (Nephrology), Leiden University Medical Center, The Netherlands (J.H.T., G.G., H.C.d.B., T.J.R., K.R., F.L.)
- Sorbonne Université, UPMC Université Paris 06, INSERM UMR_S938, Centre de Recherche Saint-Antoine, France (K.R.)
| | - Franck Lebrin
- Einthoven Laboratory for Experimental Vascular Medicine, Department of Internal Medicine (Nephrology), Leiden University Medical Center, The Netherlands (J.H.T., G.G., H.C.d.B., T.J.R., K.R., F.L.)
- CNRS UMR 7241, INSERM U1050, Collège de France, Paris (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- MEMOLIFE Laboratory of Excellence and PSL Research University, Paris, France (D.D.-S.-L., S.M., N.L., D.B., S.S., F.L.)
- CNRS UMR 7587, INSERM U979, Institut Langevin, ESPCI, Paris, France (F.L.)
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18
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Chappell JC, Darden J, Payne LB, Fink K, Bautch VL. Blood Vessel Patterning on Retinal Astrocytes Requires Endothelial Flt-1 (VEGFR-1). J Dev Biol 2019; 7:jdb7030018. [PMID: 31500294 PMCID: PMC6787756 DOI: 10.3390/jdb7030018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 12/24/2022] Open
Abstract
Feedback mechanisms are critical components of many pro-angiogenic signaling pathways that keep vessel growth within a functional range. The Vascular Endothelial Growth Factor-A (VEGF-A) pathway utilizes the decoy VEGF-A receptor Flt-1 to provide negative feedback regulation of VEGF-A signaling. In this study, we investigated how the genetic loss of flt-1 differentially affects the branching complexity of vascular networks in tissues despite similar effects on endothelial sprouting. We selectively ablated flt-1 in the post-natal retina and found that maximum induction of flt-1 loss resulted in alterations in endothelial sprouting and filopodial extension, ultimately yielding hyper-branched networks in the absence of changes in retinal astrocyte architecture. The mosaic deletion of flt-1 revealed that sprouting endothelial cells flanked by flt-1−/− regions of vasculature more extensively associated with underlying astrocytes and exhibited aberrant sprouting, independent of the tip cell genotype. Overall, our data support a model in which tissue patterning features, such as retinal astrocytes, integrate with flt-1-regulated angiogenic molecular and cellular mechanisms to yield optimal vessel patterning for a given tissue.
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Affiliation(s)
- John C Chappell
- Center for Heart and Reparative Medicine Research, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA.
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
| | - Jordan Darden
- Center for Heart and Reparative Medicine Research, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA 24061, USA
| | - Laura Beth Payne
- Center for Heart and Reparative Medicine Research, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Kathryn Fink
- Center for Heart and Reparative Medicine Research, Fralin Biomedical Research Institute, Roanoke, VA 24016, USA
- Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Victoria L Bautch
- Department of Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
- McAllister Heart Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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19
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Zhao H, Chappell JC. Microvascular bioengineering: a focus on pericytes. J Biol Eng 2019; 13:26. [PMID: 30984287 PMCID: PMC6444752 DOI: 10.1186/s13036-019-0158-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/15/2019] [Indexed: 12/26/2022] Open
Abstract
Capillaries within the microcirculation are essential for oxygen delivery and nutrient/waste exchange, among other critical functions. Microvascular bioengineering approaches have sought to recapitulate many key features of these capillary networks, with an increasing appreciation for the necessity of incorporating vascular pericytes. Here, we briefly review established and more recent insights into important aspects of pericyte identification and function within the microvasculature. We then consider the importance of including vascular pericytes in various bioengineered microvessel platforms including 3D culturing and microfluidic systems. We also discuss how vascular pericytes are a vital component in the construction of computational models that simulate microcirculation phenomena including angiogenesis, microvascular biomechanics, and kinetics of exchange across the vessel wall. In reviewing these topics, we highlight the notion that incorporating pericytes into microvascular bioengineering applications will increase their utility and accelerate the translation of basic discoveries to clinical solutions for vascular-related pathologies.
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Affiliation(s)
- Huaning Zhao
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, 2 Riverside Circle, Roanoke, VA 24016 USA.,Department of Biomedical Engineering and Mechanics, Virginia Polytechnic State Institute and State University, Blacksburg, VA 24061 USA
| | - John C Chappell
- Center for Heart and Reparative Medicine, Fralin Biomedical Research Institute, 2 Riverside Circle, Roanoke, VA 24016 USA.,Department of Biomedical Engineering and Mechanics, Virginia Polytechnic State Institute and State University, Blacksburg, VA 24061 USA.,3Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA 24016 USA
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20
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Generating Vegfr3 reporter transgenic mouse expressing membrane-tagged Venus for visualization of VEGFR3 expression in vascular and lymphatic endothelial cells. PLoS One 2019; 14:e0210060. [PMID: 30601868 PMCID: PMC6314617 DOI: 10.1371/journal.pone.0210060] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 11/08/2018] [Indexed: 02/06/2023] Open
Abstract
Vascular endothelial growth factor receptor 3 (Vegfr3) has been widely used as a marker for lymphatic and vascular endothelial cells during mouse embryonic development and in adult mouse, making it valuable for studying angiogenesis and lymphangiogenesis under normal and pathological conditions. Here, we report the generation of a novel transgenic (Tg) mouse that expresses a membrane-localized fluorescent reporter protein, Gap43-Venus, under the control of the Vegfr3 regulatory sequence. Vegfr3-Gap43-Venus BAC Tg recapitulated endogenous Vegfr3 expression in vascular and lymphatic endothelial cells during embryonic development and tumor development. Thus, this Tg mouse line contributes a valuable model to study angiogenesis and lymphangiogenesis in physiological and pathological contexts.
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21
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Shimauchi-Ohtaki H, Kurachi M, Naruse M, Shibasaki K, Sugio S, Matsumoto K, Ema M, Yoshimoto Y, Ishizaki Y. The dynamics of revascularization after white matter infarction monitored in Flt1-tdsRed and Flk1-GFP mice. Neurosci Lett 2018; 692:70-76. [PMID: 30389418 DOI: 10.1016/j.neulet.2018.10.057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/11/2018] [Accepted: 10/30/2018] [Indexed: 12/18/2022]
Abstract
Subcortical white matter infarction causes ischemic demyelination and loss of brain functions, as the result of disturbances of the blood flow. Although angiogenesis is one of the recovery processes after cerebral infarction, the dynamics of revascularization after white matter infarction still remains unclear. We induced white matter infarction in the internal capsule of Flk1-GFP::Flt1-tdsRed double transgenic mice by injection of endothelin-1 (ET-1), a vasoconstrictor peptide, together with N(G)-nitro-L-arginine methyl ester (L-NAME), a nitric oxide synthase inhibitor, and followed the changes in Flk1 and Flt1 expression in the vascular system in the infarct area. Reduction of Flt1-tdsRed-positive blood vessels 1 day after the injection and increase of Flk1-GFP-strongly-positive blood vessels 3 days after the injection were apparent. PDGFRβ-strongly-positive (PDGFRβ+) cells appeared in the infarct area 3 days after the injection and increased their number thereafter. Three days after the injection, most of these cells were in close contact with Flk1-GFP-positive endothelial cells, indicating these cells are bona fide pericytes. Seven days after the injection, the number of PDGFRβ+ cells increased dramatically, and the vast majority of these cells were not in close contact with Flk1-GFP-positive endothelial cells. Taken together, our results suggest revascularization begins early after the ischemic insult, and the emerging pericytes first ensheath blood vessels and then produce fibroblast-like cells not directly associated with blood vessels.
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Affiliation(s)
- Hiroya Shimauchi-Ohtaki
- Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan; Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Masashi Kurachi
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Masae Naruse
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Koji Shibasaki
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Shouta Sugio
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Ken Matsumoto
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Yuhei Yoshimoto
- Department of Neurosurgery, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Yasuki Ishizaki
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.
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22
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Darden J, Payne LB, Zhao H, Chappell JC. Excess vascular endothelial growth factor-A disrupts pericyte recruitment during blood vessel formation. Angiogenesis 2018; 22:167-183. [PMID: 30238211 DOI: 10.1007/s10456-018-9648-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 09/14/2018] [Indexed: 12/12/2022]
Abstract
Pericyte investment into new blood vessels is essential for vascular development such that mis-regulation within this phase of vessel formation can contribute to numerous pathologies including arteriovenous and cerebrovascular malformations. It is critical therefore to illuminate how angiogenic signaling pathways intersect to regulate pericyte migration and investment. Here, we disrupted vascular endothelial growth factor-A (VEGF-A) signaling in ex vivo and in vitro models of sprouting angiogenesis, and found pericyte coverage to be compromised during VEGF-A perturbations. Pericytes had little to no expression of VEGF receptors, suggesting VEGF-A signaling defects affect endothelial cells directly but pericytes indirectly. Live imaging of ex vivo angiogenesis in mouse embryonic skin revealed limited pericyte migration during exposure to exogenous VEGF-A. During VEGF-A gain-of-function conditions, pericytes and endothelial cells displayed abnormal transcriptional changes within the platelet-derived growth factor-B (PDGF-B) and Notch pathways. To further test potential crosstalk between these pathways in pericytes, we stimulated embryonic pericytes with Notch ligands Delta-like 4 (Dll4) and Jagged-1 (Jag1) and found induction of Notch pathway activity but no changes in PDGF Receptor-β (Pdgfrβ) expression. In contrast, PDGFRβ protein levels decreased with mis-regulated VEGF-A activity, observed in the effects on full-length PDGFRβ and a truncated PDGFRβ isoform generated by proteolytic cleavage or potentially by mRNA splicing. Overall, these observations support a model in which, during the initial stages of vascular development, pericyte distribution and coverage are indirectly affected by endothelial cell VEGF-A signaling and the downstream regulation of PDGF-B-PDGFRβ dynamics, without substantial involvement of pericyte Notch signaling during these early stages.
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Affiliation(s)
- Jordan Darden
- Center for Heart and Regenerative Medicine, Virginia Tech Carilion Research Institute, 2 Riverside Circle, Roanoke, VA, 24016, USA.,Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - Laura Beth Payne
- Center for Heart and Regenerative Medicine, Virginia Tech Carilion Research Institute, 2 Riverside Circle, Roanoke, VA, 24016, USA
| | - Huaning Zhao
- Center for Heart and Regenerative Medicine, Virginia Tech Carilion Research Institute, 2 Riverside Circle, Roanoke, VA, 24016, USA.,Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA
| | - John C Chappell
- Center for Heart and Regenerative Medicine, Virginia Tech Carilion Research Institute, 2 Riverside Circle, Roanoke, VA, 24016, USA. .,Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA. .,Department of Biomedical Engineering and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA. .,Department of Basic Science Education, Virginia Tech Carilion School of Medicine, Roanoke, VA, 24016, USA.
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23
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Doh SJ, Yamakawa M, Santosa SM, Montana M, Guo K, Sauer JR, Curran N, Han KY, Yu C, Ema M, Rosenblatt MI, Chang JH, Azar DT. Fluorescent reporter transgenic mice for in vivo live imaging of angiogenesis and lymphangiogenesis. Angiogenesis 2018; 21:677-698. [PMID: 29971641 DOI: 10.1007/s10456-018-9629-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 06/26/2018] [Indexed: 12/29/2022]
Abstract
The study of lymphangiogenesis is an emerging science that has revealed the lymphatic system as a central player in many pathological conditions including cancer metastasis, lymphedema, and organ graft rejection. A thorough understanding of the mechanisms of lymphatic growth will play a key role in the development of therapeutic strategies against these conditions. Despite the known potential of this field, the study of lymphatics has historically lagged behind that of hemangiogenesis. Until recently, significant strides in lymphatic studies were impeded by a lack of lymphatic-specific markers and suitable experimental models compared to those of the more immediately visible blood vasculature. Lymphangiogenesis has also been shown to be a key phenomenon in developmental biological processes, such as cell proliferation, guided migration, differentiation, and cell-to-cell communication, making lymphatic-specific visualization techniques highly desirable and desperately needed. Imaging modalities including immunohistochemistry and in situ hybridization are limited by the need to sacrifice animal models for tissue harvesting at every experimental time point. Moreover, the processes of mounting and staining harvested tissues may introduce artifacts that can confound results. These traditional methods for investigating lymphatic and blood vasculature are associated with several problems including animal variability (e.g., between mice) when replicating lymphatic growth environments and the cost concerns of prolonged, labor-intensive studies, all of which complicate the study of dynamic lymphatic processes. With the discovery of lymphatic-specific markers, researchers have been able to develop several lymphatic and blood vessel-specific, promoter-driven, fluorescent-reporter transgenic mice for visualization of lymphatics in vivo and in vitro. For instance, GFP, mOrange, tdTomato, and other fluorescent proteins can be expressed under control of a lymphatic-specific marker like Prospero-related homeobox 1 (Prox1), which is a highly conserved transcription factor for determining embryonic organogenesis in vertebrates that is implicated in lymphangiogenesis as well as several human cancers. Importantly, Prox1-null mouse embryos develop without lymphatic vessels. In human adults, Prox1 maintains lymphatic endothelial cells and upregulates proteins associated with lymphangiogenesis (e.g., VEGFR-3) and downregulates angiogenesis-associated gene expression (e.g., STAT6). To visualize lymphatic development in the context of angiogenesis, dual fluorescent-transgenic reporters, like Prox1-GFP/Flt1-DsRed mice, have been bred to characterize lymphatic and blood vessels simultaneously in vivo. In this review, we discuss the trends in lymphatic visualization and the potential usage of transgenic breeds in hemangiogenesis and lymphangiogenesis research to understand spatial and temporal correlations between vascular development and pathological progression.
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Affiliation(s)
- Susan J Doh
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Michael Yamakawa
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Samuel M Santosa
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Mario Montana
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Kai Guo
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Joseph R Sauer
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Nicholas Curran
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Kyu-Yeon Han
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Charles Yu
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Shiga University of Medical Science, Otsu, Japan
| | - Mark I Rosenblatt
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Jin-Hong Chang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
| | - Dimitri T Azar
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
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24
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Goto S, Onishi A, Misaki K, Yonemura S, Sugita S, Ito H, Ohigashi Y, Ema M, Sakaguchi H, Nishida K, Takahashi M. Neural retina-specific Aldh1a1 controls dorsal choroidal vascular development via Sox9 expression in retinal pigment epithelial cells. eLife 2018; 7:32358. [PMID: 29609731 PMCID: PMC5882243 DOI: 10.7554/elife.32358] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 03/05/2018] [Indexed: 12/23/2022] Open
Abstract
VEGF secreted from retinal pigment epithelial (RPE) cells is responsible for the choroidal vascular development; however, the molecular regulatory mechanism is unclear. We found that Aldh1a1-/- mice showed choroidal hypoplasia with insufficient vascularization in the dorsal region, although Aldh1a1, an enzyme that synthesizes retinoic acids (RAs), is expressed in the dorsal neural retina, not in the RPE/choroid complex. The level of VEGF in the RPE/choroid was significantly decreased in Aldh1a1-/- mice, and RA-dependent enhancement of VEGF was observed in primary RPE cells. An RA-deficient diet resulted in dorsal choroidal hypoplasia, and simple RA treatment of Aldh1a1-/- pregnant females suppressed choroid hypoplasia in their offspring. We also found downregulation of Sox9 in the dorsal neural retina and RPE of Aldh1a1-/- mice and RPE-specific disruption of Sox9 phenocopied Aldh1a1-/- choroidal development. These results suggest that RAs produced by Aldh1a1 in the neural retina directs dorsal choroidal vascular development via Sox9 upregulation in the dorsal RPE cells to enhance RPE-derived VEGF secretion.
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Affiliation(s)
- So Goto
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan.,Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Akishi Onishi
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan.,Kobe City Eye Hospital Research Center, Kobe, Japan
| | - Kazuyo Misaki
- Ultrastructural Research Team, RIKEN Center for Life Science Technologies, Kobe, Japan
| | - Shigenobu Yonemura
- Ultrastructural Research Team, RIKEN Center for Life Science Technologies, Kobe, Japan
| | - Sunao Sugita
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan.,Kobe City Eye Hospital Research Center, Kobe, Japan
| | - Hiromi Ito
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan
| | - Yoko Ohigashi
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Otsu, Japan
| | - Hirokazu Sakaguchi
- Department of Advanced Device Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kohji Nishida
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masayo Takahashi
- Laboratory for Retinal Regeneration, RIKEN Center for Developmental Biology, Kobe, Japan.,Kobe City Eye Hospital Research Center, Kobe, Japan
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25
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Herz K, Becker A, Shi C, Ema M, Takahashi S, Potente M, Hesse M, Fleischmann BK, Wenzel D. Visualization of endothelial cell cycle dynamics in mouse using the Flt-1/eGFP-anillin system. Angiogenesis 2018; 21:349-361. [DOI: 10.1007/s10456-018-9601-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 01/28/2018] [Indexed: 11/28/2022]
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26
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Kurotsu S, Osakabe R, Isomi M, Tamura F, Sadahiro T, Muraoka N, Kojima H, Haginiwa S, Tani H, Nara K, Kubota Y, Ema M, Fukuda K, Suzuki T, Ieda M. Distinct expression patterns of Flk1 and Flt1 in the coronary vascular system during development and after myocardial infarction. Biochem Biophys Res Commun 2018; 495:884-891. [DOI: 10.1016/j.bbrc.2017.11.094] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 11/14/2017] [Indexed: 11/25/2022]
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27
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Balaban AE, Neuman K, Sinnis P, Balaban RS. Robust fluorescent labelling of micropipettes for use in fluorescence microscopy: application to the observation of a mosquito borne parasite infection. J Microsc 2017; 269:78-84. [PMID: 28795398 DOI: 10.1111/jmi.12610] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 07/09/2017] [Accepted: 07/10/2017] [Indexed: 11/29/2022]
Abstract
The ability to monitor micropipette injections with a high-resolution fluorescent microscope has utility for a variety of applications. Herein, different approaches were tested for creating broad-band fluorescently labelled glass micropipettes including: UV cured glass glues, baked glass enamel containing fluorescent dyes as well as nanodiamonds attached during pipette formation in the microforge. The most robust and simplest approach was to use labelled baked enamel on the exterior of the pipette. This approach was tested using pipettes designed to mimic a mosquito proboscis for the injection of the malaria parasite, Plasmodium spp., into the dermis of a living mouse ear. The pipette (∼30 micron diameter) was easily detected in the microscopy field of view and tolerated multiple insertions through the skin. This simple inexpensive approach to fluorescently labelling micropipettes will aid in the development of procedures under the fluorescent microscope.
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Affiliation(s)
- Amanda E Balaban
- Johns Hopkins Malaria Research Institute and Department of Molecular Microbiology & Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, U.S.A
| | - Keir Neuman
- Laboratory of Molecular Biophysics, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, U.S.A
| | - Photini Sinnis
- Johns Hopkins Malaria Research Institute and Department of Molecular Microbiology & Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, U.S.A
| | - Robert S Balaban
- Laboratory of Cardiac Energetics, National Heart Blood and Lung Institute, National Institutes of Health, Bethesda, Maryland, U.S.A
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28
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Prox1-GFP/Flt1-DsRed transgenic mice: an animal model for simultaneous live imaging of angiogenesis and lymphangiogenesis. Angiogenesis 2017; 20:581-598. [PMID: 28795242 DOI: 10.1007/s10456-017-9572-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 08/02/2017] [Indexed: 12/30/2022]
Abstract
The roles of angiogenesis in development, health, and disease have been studied extensively; however, the studies related to lymphatic system are limited due to the difficulty in observing colorless lymphatic vessels. But recently, with the improved technique, the relative importance of the lymphatic system is just being revealed. We bred transgenic mice in which lymphatic endothelial cells express GFP (Prox1-GFP) with mice in which vascular endothelial cells express DsRed (Flt1-DsRed) to generate Prox1-GFP/Flt1-DsRed (PGFD) mice. The inherent fluorescence of blood and lymphatic vessels allows for direct visualization of blood and lymphatic vessels in various organs via confocal and two-photon microscopy and the formation, branching, and regression of both vessel types in the same live mouse cornea throughout an experimental time course. PGFD mice were bred with CDh5CreERT2 and VEGFR2lox knockout mice to examine specific knockouts. These studies showed a novel role for vascular endothelial cell VEGFR2 in regulating VEGFC-induced corneal lymphangiogenesis. Conditional deletion of vascular endothelial VEGFR2 abolished VEGFA- and VEGFC-induced corneal lymphangiogenesis. These results demonstrate the potential use of the PGFD mouse as a powerful animal model for studying angiogenesis and lymphangiogenesis.
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29
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Fluorescence and Bioluminescence Imaging of Angiogenesis in Flk1-Nano-lantern Transgenic Mice. Sci Rep 2017; 7:46597. [PMID: 28425492 PMCID: PMC5397864 DOI: 10.1038/srep46597] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 03/22/2017] [Indexed: 12/19/2022] Open
Abstract
Angiogenesis is important for normal development as well as for tumour growth. However, the molecular and cellular mechanisms underlying angiogenesis are not fully understood, partly because of the lack of a good animal model for imaging. Here, we report the generation of a novel transgenic (Tg) mouse that expresses a bioluminescent reporter protein, Nano-lantern, under the control of Fetal liver kinase 1 (Flk1). Flk1-Nano-lantern BAC Tg mice recapitulated endogenous Flk1 expression in endothelial cells and lymphatic endothelial cells during development and tumour growth. Importantly, bioluminescence imaging of endothelial cells from the aortic rings of Flk1-Nano-lantern BAC Tg mice enabled us to observe endothelial sprouting for 18 hr without any detectable phototoxicity. Furthermore, Flk1-Nano-lantern BAC Tg mice achieved time-lapse luminescence imaging of tumour angiogenesis in freely moving mice with implanted tumours. Thus, this transgenic mouse line contributes a unique model to study angiogenesis within both physiological and pathological contexts.
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Ogura S, Kurata K, Hattori Y, Takase H, Ishiguro-Oonuma T, Hwang Y, Ahn S, Park I, Ikeda W, Kusuhara S, Fukushima Y, Nara H, Sakai H, Fujiwara T, Matsushita J, Ema M, Hirashima M, Minami T, Shibuya M, Takakura N, Kim P, Miyata T, Ogura Y, Uemura A. Sustained inflammation after pericyte depletion induces irreversible blood-retina barrier breakdown. JCI Insight 2017; 2:e90905. [PMID: 28194443 DOI: 10.1172/jci.insight.90905] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In the central nervous system, endothelial cells (ECs) and pericytes (PCs) of blood vessel walls cooperatively form a physical and chemical barrier to maintain neural homeostasis. However, in diabetic retinopathy (DR), the loss of PCs from vessel walls is assumed to cause breakdown of the blood-retina barrier (BRB) and subsequent vision-threatening vascular dysfunctions. Nonetheless, the lack of adequate DR animal models has precluded disease understanding and drug discovery. Here, by using an anti-PDGFRβ antibody, we show that transient inhibition of the PC recruitment to developing retinal vessels sustained EC-PC dissociations and BRB breakdown in adult mouse retinas, reproducing characteristic features of DR such as hyperpermeability, hypoperfusion, and neoangiogenesis. Notably, PC depletion directly induced inflammatory responses in ECs and perivascular infiltration of macrophages, whereby macrophage-derived VEGF and placental growth factor (PlGF) activated VEGFR1 in macrophages and VEGFR2 in ECs. Moreover, angiopoietin-2 (Angpt2) upregulation and Tie1 downregulation activated FOXO1 in PC-free ECs locally at the leaky aneurysms. This cycle of vessel damage was shut down by simultaneously blocking VEGF, PlGF, and Angpt2, thus restoring the BRB integrity. Together, our model provides new opportunities for identifying the sequential events triggered by PC deficiency, not only in DR, but also in various neurological disorders.
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Affiliation(s)
- Shuntaro Ogura
- Department of Retinal Vascular Biology.,Department of Ophthalmology and Visual Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | | | - Yuki Hattori
- Department of Anatomy and Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Takase
- Core Laboratory, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Toshina Ishiguro-Oonuma
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Japan
| | - Yoonha Hwang
- Graduate School of Nanoscience and Technology, and
| | - Soyeon Ahn
- Graduate School of Nanoscience and Technology, and
| | - Inwon Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | | | - Sentaro Kusuhara
- Division of Ophthalmology, Department of Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Yoko Fukushima
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiromi Nara
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Japan
| | - Hideto Sakai
- Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Japan
| | - Takashi Fujiwara
- Faculty of Nursing, Hiroshima Bunka Gakuen University, Kure, Japan
| | - Jun Matsushita
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Otsu, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Otsu, Japan
| | - Masanori Hirashima
- Division of Vascular Biology, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takashi Minami
- Division of Phenotype Disease Analysis, Institute of Resource Development and Analysis, Kumamoto University, Kumamoto, Japan
| | - Masabumi Shibuya
- Institute of Physiology and Medicine, Jobu University, Takasaki, Japan
| | - Nobuyuki Takakura
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Pilhan Kim
- Graduate School of Nanoscience and Technology, and
| | - Takaki Miyata
- Department of Anatomy and Cell Biology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichiro Ogura
- Department of Ophthalmology and Visual Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akiyoshi Uemura
- Department of Retinal Vascular Biology.,Department of Ophthalmology and Visual Sciences, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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31
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Laviña B. Brain Vascular Imaging Techniques. Int J Mol Sci 2016; 18:ijms18010070. [PMID: 28042833 PMCID: PMC5297705 DOI: 10.3390/ijms18010070] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/13/2016] [Accepted: 12/26/2016] [Indexed: 12/13/2022] Open
Abstract
Recent major improvements in a number of imaging techniques now allow for the study of the brain in ways that could not be considered previously. Researchers today have well-developed tools to specifically examine the dynamic nature of the blood vessels in the brain during development and adulthood; as well as to observe the vascular responses in disease situations in vivo. This review offers a concise summary and brief historical reference of different imaging techniques and how these tools can be applied to study the brain vasculature and the blood-brain barrier integrity in both healthy and disease states. Moreover, it offers an overview on available transgenic animal models to study vascular biology and a description of useful online brain atlases.
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Affiliation(s)
- Bàrbara Laviña
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, 75185 Uppsala, Sweden.
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32
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Matsumoto Y, Nichols JW, Toh K, Nomoto T, Cabral H, Miura Y, Christie RJ, Yamada N, Ogura T, Kano MR, Matsumura Y, Nishiyama N, Yamasoba T, Bae YH, Kataoka K. Vascular bursts enhance permeability of tumour blood vessels and improve nanoparticle delivery. NATURE NANOTECHNOLOGY 2016; 11:533-538. [PMID: 26878143 DOI: 10.1038/nnano.2015.342] [Citation(s) in RCA: 277] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 11/22/2015] [Indexed: 05/28/2023]
Abstract
Enhanced permeability in tumours is thought to result from malformed vascular walls with leaky cell-to-cell junctions. This assertion is backed by studies using electron microscopy and polymer casts that show incomplete pericyte coverage of tumour vessels and the presence of intercellular gaps. However, this gives the impression that tumour permeability is static amid a chaotic tumour environment. Using intravital confocal laser scanning microscopy we show that the permeability of tumour blood vessels includes a dynamic phenomenon characterized by vascular bursts followed by brief vigorous outward flow of fluid (named 'eruptions') into the tumour interstitial space. We propose that 'dynamic vents' form transient openings and closings at these leaky blood vessels. These stochastic eruptions may explain the enhanced extravasation of nanoparticles from the tumour blood vessels, and offer insights into the underlying distribution patterns of an administered drug.
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Affiliation(s)
- Yu Matsumoto
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Japan
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 113-0033, Japan
| | - Joseph W Nichols
- Department of Bioengineering, University of Utah, Utah 84112, USA
| | - Kazuko Toh
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Japan
| | - Takahiro Nomoto
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, Kanagawa 226-8503, Japan
| | - Horacio Cabral
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 113-8656, Japan
| | - Yutaka Miura
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Japan
| | - R James Christie
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Japan
| | - Naoki Yamada
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Japan
| | | | - Mitsunobu R Kano
- Department of Pharmaceutical Biomedicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan
| | - Yasuhiro Matsumura
- Investigative Treatment Division, Research Center for Innovative Oncology, National Cancer Center Hospital East, Chiba 277-8577, Japan
| | - Nobuhiro Nishiyama
- Polymer Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, Kanagawa 226-8503, Japan
| | - Tatsuya Yamasoba
- Department of Otorhinolaryngology and Head and Neck Surgery, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, 113-0033, Japan
| | - You Han Bae
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Utah 84112, USA
| | - Kazunori Kataoka
- Division of Clinical Biotechnology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 113-8655, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 113-8656, Japan
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Abstract
PURPOSE OF REVIEW Throughout history, development of novel microscopy techniques has been of fundamental importance to advance the vascular biology field.This review offers a concise summary of the most recently developed imaging techniques and discusses how they can be applied to vascular biology. In addition, we reflect upon the most important fluorescent reporters for vascular research that are currently available. RECENT FINDINGS Recent advances in light sheet-based imaging techniques now offer the ability to live image the vascular system in whole organs or even in whole animals during development and in pathological conditions with a satisfactory spatial and temporal resolution. Conversely, super resolution microscopy now allows studying cellular processes at a near-molecular resolution. SUMMARY Major recent improvements in a number of imaging techniques now allow study of vascular biology in ways that could not be considered previously. Researchers now have well-developed tools to specifically examine the dynamic nature of vascular development during angiogenic sprouting, remodeling and regression as well as the vascular responses in disease situations in vivo. In addition, open questions in endothelial and lymphatic cell biology that require subcellular resolution such as actin dynamics, junctional complex formation and stability, vascular permeability and receptor trafficking can now be approached with high resolution.
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Affiliation(s)
- Bàrbara Laviña
- Department of Immunology, Genetics and Pathology, The Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
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34
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Matsuo K, Kuroda Y, Nango N, Shimoda K, Kubota Y, Ema M, Bakiri L, Wagner EF, Takeda Y, Yashiro W, Momose A. Osteogenic capillaries orchestrate growth plate-independent ossification of the malleus. Development 2015; 142:3912-20. [PMID: 26428006 PMCID: PMC4712877 DOI: 10.1242/dev.123885] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 09/20/2015] [Indexed: 12/11/2022]
Abstract
Endochondral ossification is a developmental process by which cartilage is replaced by bone. Terminally differentiated hypertrophic chondrocytes are calcified, vascularized, and removed by chondroclasts before bone matrix is laid down by osteoblasts. In mammals, the malleus is one of three auditory ossicles that transmit vibrations of the tympanic membrane to the inner ear. The malleus is formed from a cartilaginous precursor without growth plate involvement, but little is known about how bones of this type undergo endochondral ossification. Here, we demonstrate that in the processus brevis of the malleus, clusters of osteoblasts surrounding the capillary loop produce bone matrix, causing the volume of the capillary lumen to decrease rapidly in post-weaning mice. Synchrotron X-ray tomographic microscopy revealed a concentric, cylindrical arrangement of osteocyte lacunae along capillaries, indicative of pericapillary bone formation. Moreover, we report that overexpression of Fosl1, which encodes a component of the AP-1 transcription factor complex, in osteoblasts significantly blocked malleal capillary narrowing. These data suggest that osteoblast/endothelial cell interactions control growth plate-free endochondral ossification through ‘osteogenic capillaries’ in a Fosl1-regulated manner. Summary: The endochondral ossification of the malleus, an ossicle of the mouse inner ear, occurs around capillaries and is mediated by the AP-1 transcription factor Fosl1.
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Affiliation(s)
- Koichi Matsuo
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Yukiko Kuroda
- Laboratory of Cell and Tissue Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Nobuhito Nango
- Ratoc System Engineering Co., Ltd., 1-24-8 Sekiguchi, Bunkyo, Tokyo 162-0041, Japan
| | - Kouji Shimoda
- Laboratory Animal Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Yoshiaki Kubota
- Department of Vascular Biology, The Sakaguchi Laboratory, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Masatsugu Ema
- Research Center for Animal Life Science, Shiga University of Medical Science, Seta, Tsukinowa-cho, Otsu, Shiga 520-2192, Japan
| | - Latifa Bakiri
- Genes, Development and Disease Group, National Cancer Research Centre (CNIO), Cancer Cell Biology Programme, Melchor Fernandez Almagro 3, Madrid 28029, Spain
| | - Erwin F Wagner
- Genes, Development and Disease Group, National Cancer Research Centre (CNIO), Cancer Cell Biology Programme, Melchor Fernandez Almagro 3, Madrid 28029, Spain
| | - Yoshihiro Takeda
- X-ray Research Laboratory, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo 196-8666, Japan
| | - Wataru Yashiro
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Aoba, Sendai Miyagi 980-8577, Japan
| | - Atsushi Momose
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Katahira 2-1-1, Aoba, Sendai Miyagi 980-8577, Japan
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35
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Okabe K, Kobayashi S, Yamada T, Kurihara T, Tai-Nagara I, Miyamoto T, Mukouyama YS, Sato T, Suda T, Ema M, Kubota Y. Neurons Limit Angiogenesis by Titrating VEGF in Retina. Cell 2014; 159:584-96. [DOI: 10.1016/j.cell.2014.09.025] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 07/29/2014] [Accepted: 09/10/2014] [Indexed: 10/24/2022]
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36
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Matsumoto K, Ema M. Roles of VEGF-A signalling in development, regeneration, and tumours. J Biochem 2014; 156:1-10. [DOI: 10.1093/jb/mvu031] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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