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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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