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Greysson-Wong J, Rode R, Ryu JR, Chan JL, Davari P, Rinker KD, Childs SJ. rasa1-related arteriovenous malformation is driven by aberrant venous signalling. Development 2023; 150:dev201820. [PMID: 37708300 DOI: 10.1242/dev.201820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/21/2023] [Indexed: 09/16/2023]
Abstract
Arteriovenous malformations (AVMs) develop where abnormal endothelial signalling allows direct connections between arteries and veins. Mutations in RASA1, a Ras GTPase activating protein, lead to AVMs in humans and, as we show, in zebrafish rasa1 mutants. rasa1 mutants develop cavernous AVMs that subsume part of the dorsal aorta and multiple veins in the caudal venous plexus (CVP) - a venous vascular bed. The AVMs progressively enlarge and fill with slow-flowing blood. We show that the AVM results in both higher minimum and maximum flow velocities, resulting in increased pulsatility in the aorta and decreased pulsatility in the vein. These hemodynamic changes correlate with reduced expression of the flow-responsive transcription factor klf2a. Remodelling of the CVP is impaired with an excess of intraluminal pillars, which is a sign of incomplete intussusceptive angiogenesis. Mechanistically, we show that the AVM arises from ectopic activation of MEK/ERK in the vein of rasa1 mutants, and that cell size is also increased in the vein. Blocking MEK/ERK signalling prevents AVM initiation in mutants. Alterations in venous MEK/ERK therefore drive the initiation of rasa1 AVMs.
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Affiliation(s)
- Jasper Greysson-Wong
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
| | - Rachael Rode
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Chemical and Petroleum Engineering, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
| | - Jae-Ryeon Ryu
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
| | - Jo Li Chan
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
| | - Paniz Davari
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
| | - Kristina D Rinker
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Chemical and Petroleum Engineering, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
| | - Sarah J Childs
- Alberta Children's Hospital Research Institute, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
- Department of Biochemistry and Molecular Biology, University of Calgary, 3330 University Drive NW, Calgary, AB T2N 4N1, Canada
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Atkinson SP. A preview of selected articles-September 2021. Stem Cells Transl Med 2021; 10:1249-1252. [PMID: 34420262 PMCID: PMC8380439 DOI: 10.1002/sctm.21-0253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 07/03/2021] [Indexed: 01/02/2023] Open
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3
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Atkinson SP. A Preview of Selected Articles. Stem Cells 2021. [DOI: 10.1002/stem.3437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Nath SC, Day B, Harper L, Yee J, Hsu CYM, Larijani L, Rohani L, Duan N, Kallos MS, Rancourt DE. Fluid shear stress promotes embryonic stem cell pluripotency via interplay between β-catenin and vinculin in bioreactor culture. STEM CELLS (DAYTON, OHIO) 2021; 39:1166-1177. [PMID: 33837584 DOI: 10.1002/stem.3382] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 03/12/2021] [Accepted: 03/25/2021] [Indexed: 11/07/2022]
Abstract
The expansion of pluripotent stem cells (PSCs) as aggregates in stirred suspension bioreactors is garnering attention as an alternative to adherent culture. However, the hydrodynamic environment in the bioreactor can modulate PSC behavior, pluripotency and differentiation potential in ways that need to be well understood. In this study, we investigated how murine embryonic stem cells (mESCs) sense fluid shear stress and modulate a noncanonical Wnt signaling response to promote pluripotency. mESCs showed higher expression of pluripotency marker genes, Oct4, Sox2, and Nanog in the absence of leukemia inhibitory factor (LIF) in stirred suspension bioreactors compared to adherent culture, a phenomenon we have termed mechanopluripotency. In bioreactor culture, fluid shear promoted the nuclear translocation of the less well-known pluripotency regulator β-catenin and concomitant increase of c-Myc expression, an upstream regulator of Oct4, Sox2, and Nanog. We also observed similar β-catenin nuclear translocation in LIF-free mESCs cultured on E-cadherin substrate under defined fluid shear stress conditions in flow chamber plates. mESCs showed lower shear-induced expression of pluripotency marker genes when β-catenin was inhibited, suggesting that β-catenin signaling is crucial to mESC mechanopluripotency. Key to this process is vinculin, which is known to rearrange and associate more strongly with adherens junctions in response to fluid shear. When the vinculin gene is disrupted, we observe that nuclear β-catenin translocation and mechanopluripotency are abrogated. Our results indicate that mechanotransduction through the adherens junction complex is important for mESC pluripotency maintenance.
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Affiliation(s)
- Suman C Nath
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Bradley Day
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Lane Harper
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Jeffrey Yee
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Charlie Yu-Ming Hsu
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Leila Larijani
- McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Leili Rohani
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Nicholas Duan
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michael S Kallos
- McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Pharmaceutical Production Research Facility, Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada.,Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, Alberta, Canada
| | - Derrick E Rancourt
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,McCaig Institute for Bone and Joint Health, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.,Department of Medical Genetics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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5
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Wyma A, Martin-Alarcon L, Walsh T, Schmidt TA, Gates ID, Kallos MS. Non-Newtonian rheology in suspension cell cultures significantly impacts bioreactor shear stress quantification. Biotechnol Bioeng 2018; 115:2101-2113. [DOI: 10.1002/bit.26723] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 03/29/2018] [Accepted: 04/25/2018] [Indexed: 01/17/2023]
Affiliation(s)
- Alex Wyma
- Biomedical Engineering Graduate Program; University of Calgary; Calgary Alberta Canada
- Pharmaceutical Production Research Facility, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
| | - Leonardo Martin-Alarcon
- Biomedical Engineering Graduate Program; University of Calgary; Calgary Alberta Canada
- Human Performance Laboratory, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
| | - Tylor Walsh
- Biomedical Engineering Graduate Program; University of Calgary; Calgary Alberta Canada
- Pharmaceutical Production Research Facility, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
| | - Tannin A. Schmidt
- Human Performance Laboratory, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
- Centre for Bioengineering Research and Education, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
| | - Ian D. Gates
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
| | - Michael S. Kallos
- Pharmaceutical Production Research Facility, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering; University of Calgary; Calgary Alberta Canada
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Gelatin and galactomannan-based scaffolds: Characterization and potential for tissue engineering applications. Carbohydr Polym 2015; 133:8-18. [DOI: 10.1016/j.carbpol.2015.06.039] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 06/10/2015] [Accepted: 06/12/2015] [Indexed: 11/18/2022]
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7
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Han YL, Wang S, Zhang X, Li Y, Huang G, Qi H, Pingguan-Murphy B, Li Y, Lu TJ, Xu F. Engineering physical microenvironment for stem cell based regenerative medicine. Drug Discov Today 2014; 19:763-73. [PMID: 24508818 DOI: 10.1016/j.drudis.2014.01.015] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 01/20/2014] [Accepted: 01/27/2014] [Indexed: 12/13/2022]
Abstract
Regenerative medicine has rapidly evolved over the past decade owing to its potential applications to improve human health. Targeted differentiations of stem cells promise to regenerate a variety of tissues and/or organs despite significant challenges. Recent studies have demonstrated the vital role of the physical microenvironment in regulating stem cell fate and improving differentiation efficiency. In this review, we summarize the main physical cues that are crucial for controlling stem cell differentiation. Recent advances in the technologies for the construction of physical microenvironment and their implications in controlling stem cell fate are also highlighted.
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Affiliation(s)
- Yu Long Han
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Shuqi Wang
- Brigham Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Xiaohui Zhang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Yuhui Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Guoyou Huang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Hao Qi
- Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China
| | - Belinda Pingguan-Murphy
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - Yinghui Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and training Center, Beijing, 100094, China
| | - Tian Jian Lu
- Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China.
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Shaanxi, 710049, China; Bioinspired Engineering & Biomechanics Center, Xi'an Jiaotong University, Shaanxi, 710049, China.
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