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Wang Y, Yu FX. Angiomotin family proteins in the Hippo signaling pathway. Bioessays 2024; 46:e2400076. [PMID: 38760875 DOI: 10.1002/bies.202400076] [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: 04/01/2024] [Revised: 05/03/2024] [Accepted: 05/08/2024] [Indexed: 05/19/2024]
Abstract
The Motin family proteins (Motins) are a class of scaffolding proteins consisting of Angiomotin (AMOT), AMOT-like protein 1 (AMOTL1), and AMOT-like protein 2 (AMOTL2). Motins play a pivotal role in angiogenesis, tumorigenesis, and neurogenesis by modulating multiple cellular signaling pathways. Recent findings indicate that Motins are components of the Hippo pathway, a signaling cascade involved in development and cancer. This review discusses how Motins are integrated into the Hippo signaling network, as either upstream regulators or downstream effectors, to modulate cell proliferation and migration. The repression of YAP/TAZ by Motins contributes to growth inhibition, whereas subcellular localization of Motins and their interactions with actin fibers are critical in regulating cell migration. The net effect of Motins on cell proliferation and migration may contribute to their diverse biological functions.
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Affiliation(s)
- Yu Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, International Co-laboratory of Medical Epigenetics and Metabolism, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fa-Xing Yu
- Institute of Pediatrics, Children's Hospital of Fudan University, International Co-laboratory of Medical Epigenetics and Metabolism, State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
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2
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Zou W, Lei Y, Ding C, Xiao H, Wang S, Liang S, Luo W, Long Z, He S, Li Q, Qiao H, Liu N, Mao Y. The circadian gene ARNTL2 promotes nasopharyngeal carcinoma invasiveness and metastasis through suppressing AMOTL2-LATS-YAP pathway. Cell Death Dis 2024; 15:466. [PMID: 38956029 PMCID: PMC11220028 DOI: 10.1038/s41419-024-06860-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
Metastasis is the major culprit of treatment failure in nasopharyngeal carcinoma (NPC). Aryl hydrocarbon receptor nuclear translocator like 2 (ARNTL2), a core circadian gene, plays a crucial role in the development of various tumors. Nevertheless, the biological role and mechanism of ARNTL2 are not fully elucidated in NPC. In this study, ARNTL2 expression was significantly upregulated in NPC tissues and cells. Overexpression of ARNTL2 facilitated NPC cell migration and invasion abilities, while inhibition of ARNTL2 in similarly treated cells blunted migration and invasion abilities in vitro. Consistently, in vivo xenograft tumor models revealed that ARNTL2 silencing reduced nude mice inguinal lymph node and lung metastases, as well as tumor growth. Mechanistically, ARNTL2 negatively regulated the transcription expression of AMOTL2 by directly binding to the AMOTL2 promoter, thus reducing the recruitment and stabilization of AMOTL2 to LATS1/2 kinases, which strengthened YAP nuclear translocation by suppressing LATS-dependent YAP phosphorylation. Inhibition of AMOTL2 counteracted the effects of ARNTL2 knockdown on NPC cell migration and invasion abilities. These findings suggest that ARNTL2 may be a promising therapeutic target to combat NPC metastasis and further supports the crucial roles of circadian genes in cancer development.
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Affiliation(s)
- Wenqing Zou
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiming Lei
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Cong Ding
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Hongjun Xiao
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shunxin Wang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Shaobo Liang
- Department of Radiation Oncology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Weijie Luo
- Department of Medical Oncology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Zhiqing Long
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Shiwei He
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Qingjie Li
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
| | - Han Qiao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.
| | - Na Liu
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.
| | - Yanping Mao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China.
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Wang H, Ye M, Jin X. Role of angiomotin family members in human diseases (Review). Exp Ther Med 2024; 27:258. [PMID: 38766307 PMCID: PMC11099588 DOI: 10.3892/etm.2024.12546] [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: 03/29/2023] [Accepted: 10/23/2023] [Indexed: 05/22/2024] Open
Abstract
Angiomotin (Amot) family members, including Amot, Amot-like protein 1 (Amotl1) and Amot-like protein 2 (Amotl2), have been found to interact with angiostatins. In addition, Amot family members are involved in various physiological and pathological functions such as embryonic development, angiogenesis and tumorigenesis. Some studies have also demonstrated its regulation in signaling pathways such as the Hippo signaling pathway, AMPK signaling pathway and mTOR signaling pathways. Amot family members play an important role in neural stem cell differentiation, dendritic formation and synaptic maturation. In addition, an increasing number of studies have focused on their function in promoting and/or suppressing cancer, but the underlying mechanisms remain to be elucidated. The present review integrated relevant studies on upstream regulation and downstream signals of Amot family members, as well as the latest progress in physiological and pathological functions and clinical applications, hoping to offer important ideas for further research.
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Affiliation(s)
- Haoyun Wang
- Department of Biochemistry and Molecular Biology and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
- Department of Radiotherapy, The First Hospital of Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Meng Ye
- Department of Biochemistry and Molecular Biology and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
- Department of Radiotherapy, The First Hospital of Ningbo University, Ningbo, Zhejiang 315010, P.R. China
| | - Xiaofeng Jin
- Department of Biochemistry and Molecular Biology and Zhejiang Key Laboratory of Pathophysiology, Health Science Center, Ningbo University, Ningbo, Zhejiang 315211, P.R. China
- Department of Radiotherapy, The First Hospital of Ningbo University, Ningbo, Zhejiang 315010, P.R. China
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4
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Fonseca P, Cui W, Struyf N, Tong L, Chaurasiya A, Casagrande F, Zhao H, Fernando D, Chen X, Tobin NP, Seashore-Ludlow B, Lundqvist A, Hartman J, Göndör A, Östling P, Holmgren L. A phenotypic screening approach to target p60AmotL2-expressing invasive cancer cells. J Exp Clin Cancer Res 2024; 43:107. [PMID: 38594748 PMCID: PMC11003180 DOI: 10.1186/s13046-024-03031-w] [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: 11/20/2023] [Accepted: 03/26/2024] [Indexed: 04/11/2024] Open
Abstract
BACKGROUND Tumor cells have the ability to invade and form small clusters that protrude into adjacent tissues, a phenomenon that is frequently observed at the periphery of a tumor as it expands into healthy tissues. The presence of these clusters is linked to poor prognosis and has proven challenging to treat using conventional therapies. We previously reported that p60AmotL2 expression is localized to invasive colon and breast cancer cells. In vitro, p60AmotL2 promotes epithelial cell invasion by negatively impacting E-cadherin/AmotL2-related mechanotransduction. METHODS Using epithelial cells transfected with inducible p60AmotL2, we employed a phenotypic drug screening approach to find compounds that specifically target invasive cells. The phenotypic screen was performed by treating cells for 72 h with a library of compounds with known antitumor activities in a dose-dependent manner. After assessing cell viability using CellTiter-Glo, drug sensitivity scores for each compound were calculated. Candidate hit compounds with a higher drug sensitivity score for p60AmotL2-expressing cells were then validated on lung and colon cell models, both in 2D and in 3D, and on colon cancer patient-derived organoids. Nascent RNA sequencing was performed after BET inhibition to analyse BET-dependent pathways in p60AmotL2-expressing cells. RESULTS We identified 60 compounds that selectively targeted p60AmotL2-expressing cells. Intriguingly, these compounds were classified into two major categories: Epidermal Growth Factor Receptor (EGFR) inhibitors and Bromodomain and Extra-Terminal motif (BET) inhibitors. The latter consistently demonstrated antitumor activity in human cancer cell models, as well as in organoids derived from colon cancer patients. BET inhibition led to a shift towards the upregulation of pro-apoptotic pathways specifically in p60AmotL2-expressing cells. CONCLUSIONS BET inhibitors specifically target p60AmotL2-expressing invasive cancer cells, likely by exploiting differences in chromatin accessibility, leading to cell death. Additionally, our findings support the use of this phenotypic strategy to discover novel compounds that can exploit vulnerabilities and specifically target invasive cancer cells.
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Affiliation(s)
- Pedro Fonseca
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Weiyingqi Cui
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Nona Struyf
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
- Science for Life Laboratory, Tomtebodavägen 23a, 171 65, Stockholm, Sweden
| | - Le Tong
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Ayushi Chaurasiya
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Felipe Casagrande
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Honglei Zhao
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Dinura Fernando
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Xinsong Chen
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Nicholas P Tobin
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
- Breast Center, Karolinska Comprehensive Cancer Center, Karolinska University Hospital, Stockholm, Sweden
| | - Brinton Seashore-Ludlow
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
- Science for Life Laboratory, Tomtebodavägen 23a, 171 65, Stockholm, Sweden
| | - Andreas Lundqvist
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Johan Hartman
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
| | - Anita Göndör
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
- Department of Clinical Molecular Biology, University of Oslo, Akershus Universitetssykehus, 1478, Lørenskog, Oslo, Norway
| | - Päivi Östling
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden
- Science for Life Laboratory, Tomtebodavägen 23a, 171 65, Stockholm, Sweden
| | - Lars Holmgren
- Department of Oncology and Pathology, Karolinska Institutet, U2, Bioclinicum J6:20, Solnavägen 30, 171 64, Solna, Stockholm, Sweden.
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5
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Cui W, Subramani A, Fonseca P, Zhang Y, Tong L, Zhang Y, Egevad L, Lundqvist A, Holmgren L. Deciphering the Role of p60AmotL2 in Epithelial Extrusion and Cell Detachment. Cells 2023; 12:2158. [PMID: 37681890 PMCID: PMC10486482 DOI: 10.3390/cells12172158] [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: 07/14/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 09/09/2023] Open
Abstract
Preserving an accurate cell count is crucial for maintaining homeostasis. Apical extrusion, a process in which redundant cells are eliminated by neighboring cells, plays a key role in this regard. Recent studies have revealed that apical extrusion can also be triggered in cells transformed by oncogenes, suggesting it may be a mechanism through which tumor cells escape their microenvironment. In previous work, we demonstrated that p60AmotL2 modulates the E-cadherin function by inhibiting its connection to radial actin filaments. This isoform of AmotL2 is expressed in invasive breast and colon tumors and promotes invasion in vitro and in vivo. Transcriptionally regulated by c-Fos, p60AmotL2 is induced by local stress signals such as severe hypoxia. In this study, we investigated the normal role of p60AmotL2 in epithelial tissues. We found that this isoform is predominantly expressed in the gut, where cells experience rapid turnover. Through time-lapse imaging, we present evidence that cells expressing p60AmotL2 are extruded by their normal neighboring cells. Based on these findings, we hypothesize that tumor cells exploit this pathway to detach from normal epithelia and invade surrounding tissues.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Lars Holmgren
- Department of Oncology-Pathology, Bioclinicum J6:20, Solnavägen 30, Karolinska Institutet, 171 64 Stockholm, Sweden (L.E.)
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6
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Cao R, Zhu R, Sha Z, Qi S, Zhong Z, Zheng F, Lei Y, Tan Y, Zhu Y, Wang Y, Wang Y, Yu FX. WWC1/2 regulate spinogenesis and cognition in mice by stabilizing AMOT. Cell Death Dis 2023; 14:491. [PMID: 37528078 PMCID: PMC10394084 DOI: 10.1038/s41419-023-06020-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 07/16/2023] [Accepted: 07/25/2023] [Indexed: 08/03/2023]
Abstract
WWC1 regulates episodic learning and memory, and genetic nucleotide polymorphism of WWC1 is associated with neurodegenerative diseases such as Alzheimer's disease. However, the molecular mechanism through which WWC1 regulates neuronal function has not been fully elucidated. Here, we show that WWC1 and its paralogs (WWC2/3) bind directly to angiomotin (AMOT) family proteins (Motins), and recruit USP9X to deubiquitinate and stabilize Motins. Deletion of WWC genes in different cell types leads to reduced protein levels of Motins. In mice, neuron-specific deletion of Wwc1 and Wwc2 results in reduced expression of Motins and lower density of dendritic spines in the cortex and hippocampus, in association with impaired cognitive functions such as memory and learning. Interestingly, ectopic expression of AMOT partially rescues the neuronal phenotypes associated with Wwc1/2 deletion. Thus, WWC proteins modulate spinogenesis and cognition, at least in part, by regulating the protein stability of Motins.
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Affiliation(s)
- Runyi Cao
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Rui Zhu
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Zhao Sha
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Sixian Qi
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Zhenxing Zhong
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Fengyun Zheng
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yubin Lei
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yanfeng Tan
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yuwen Zhu
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Yu Wang
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Yi Wang
- Department of Neurology, Children's Hospital of Fudan University, National Children's Medical Center, No. 399 Wanyuan Road, Shanghai, 201102, China.
| | - Fa-Xing Yu
- Institute of Pediatrics, Children's Hospital of Fudan University, and the Shanghai Key Laboratory of Medical Epigenetics, The International Co-laboratory of Medical Epigenetics and Metabolism, the State Key Laboratory of Genetic Engineering, Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
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7
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Zhang Y, Zhang Y, Hutterer E, Hultin S, Bergman O, Kolbeinsdottir S, Jin H, Forteza MJ, Ketelhuth DFJ, Roy J, Hedin U, Enge M, Matic L, Eriksson P, Holmgren L. The VE-cadherin/AmotL2 mechanosensory pathway suppresses aortic inflammation and the formation of abdominal aortic aneurysms. NATURE CARDIOVASCULAR RESEARCH 2023; 2:629-644. [PMID: 39195920 PMCID: PMC11358041 DOI: 10.1038/s44161-023-00298-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 06/01/2023] [Indexed: 08/29/2024]
Abstract
Endothelial cells respond to mechanical forces exerted by blood flow. Endothelial cell-cell junctions and the sites of endothelial adhesion to the matrix sense and transmit mechanical forces to the cellular cytoskeleton. Here we show that the scaffold protein AmotL2 connects junctional VE-cadherin and actin filaments to the nuclear lamina. AmotL2 is essential for the formation of radial actin filaments and the alignment of endothelial cells, and, in its absence, nuclear integrity and positioning are altered. Molecular analysis demonstrated that VE-cadherin binds to AmotL2 and actin, resulting in a cascade that transmits extracellular mechanical signals to the nuclear membrane. Furthermore, the endothelial deficit of AmotL2 in mice fed normal diet provoked a pro-inflammatory response and abdominal aortic aneurysms (AAAs). Transcriptome analysis of human AAA samples revealed a negative correlation between AmotL2 and inflammation of the aortic intima. These findings offer insight into the link between junctional mechanotransduction and vascular disease.
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Affiliation(s)
- Yuanyuan Zhang
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Yumeng Zhang
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Evelyn Hutterer
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Sara Hultin
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Otto Bergman
- Department of Medicine Solna, BioClinicum, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Solrun Kolbeinsdottir
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Hong Jin
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Maria J Forteza
- Department of Medicine Solna, BioClinicum, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel F J Ketelhuth
- Department of Medicine Solna, BioClinicum, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
- Department of Cardiovascular and Renal Research, Institutet of Molecular Medicine, University of Southern Denmark, Odense, Denmark
| | - Joy Roy
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Ulf Hedin
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Martin Enge
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden
| | - Ljubica Matic
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Per Eriksson
- Department of Medicine Solna, BioClinicum, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Lars Holmgren
- Department of Oncology-Pathology, BioClinicum, Karolinska Institutet, Stockholm, Sweden.
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8
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Subramani A, Cui W, Zhang Y, Friman T, Zhao Z, Huang W, Fonseca P, Lui WO, Narayanan V, Bobrowska J, Lekka M, Yan J, Conway DE, Holmgren L. Modulation of E-Cadherin Function through the AmotL2 Isoforms Promotes Ameboid Cell Invasion. Cells 2023; 12:1682. [PMID: 37443716 PMCID: PMC10340588 DOI: 10.3390/cells12131682] [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: 05/06/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 07/15/2023] Open
Abstract
The spread of tumor cells and the formation of distant metastasis remain the main causes of mortality in cancer patients. However, the mechanisms governing the release of cells from micro-environmental constraints remain unclear. E-cadherin negatively controls the invasion of epithelial cells by maintaining cell-cell contacts. Furthermore, the inactivation of E-cadherin triggers invasion in vitro. However, the role of E-cadherin is complex, as metastasizing cells maintain E-cadherin expression, which appears to have a positive role in the survival of tumor cells. In this report, we present a novel mechanism delineating how E-cadherin function is modulated to promote invasion. We have previously shown that E-cadherin is associated with p100AmotL2, which is required for radial actin formation and the transmission of mechanical force. Here, we present evidence that p60AmotL2, which is expressed in invading tumor cells, binds to the p100AmotL2 isoform and uncouples the mechanical constraint of radial actin filaments. We show for the first time that the coupling of E-cadherin to the actin cytoskeleton via p100AmotL2 is directly connected to the nuclear membrane. The expression of p60AmotL2 inactivates this connection and alters the properties of the nuclear lamina, potentiating the invasion of cells into micropores of the extracellular matrix. In summary, we propose that the balance of the two AmotL2 isoforms is important in the modulation of E-cadherin function and that an imbalance of this axis promotes ameboid cell invasion.
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Affiliation(s)
- Aravindh Subramani
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
| | - Weiyingqi Cui
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
| | - Yuanyuan Zhang
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
| | - Tomas Friman
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
| | - Zhihai Zhao
- Department of Physics, Faculty of Science: 2 Science Drive 3, S7-01-10, Lower Kent Ridge Road, Singapore 117542, Singapore; (Z.Z.); (W.H.); (J.Y.)
- Mechanobiology Institute (MBI): T-Lab, #10-02, 5A Engineering Drive 1, National University of Singapore, Singapore 117411, Singapore
| | - Wenmao Huang
- Department of Physics, Faculty of Science: 2 Science Drive 3, S7-01-10, Lower Kent Ridge Road, Singapore 117542, Singapore; (Z.Z.); (W.H.); (J.Y.)
- Mechanobiology Institute (MBI): T-Lab, #10-02, 5A Engineering Drive 1, National University of Singapore, Singapore 117411, Singapore
| | - Pedro Fonseca
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
| | - Weng-Onn Lui
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
| | - Vani Narayanan
- Department of Biomedical Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, VA 23284, USA; (V.N.); (D.E.C.)
| | - Justyna Bobrowska
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland; (J.B.); (M.L.)
| | - Małgorzata Lekka
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland; (J.B.); (M.L.)
| | - Jie Yan
- Department of Physics, Faculty of Science: 2 Science Drive 3, S7-01-10, Lower Kent Ridge Road, Singapore 117542, Singapore; (Z.Z.); (W.H.); (J.Y.)
- Mechanobiology Institute (MBI): T-Lab, #10-02, 5A Engineering Drive 1, National University of Singapore, Singapore 117411, Singapore
| | - Daniel E. Conway
- Department of Biomedical Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, VA 23284, USA; (V.N.); (D.E.C.)
| | - Lars Holmgren
- Department of Oncology and Pathology, U2, Bioclinicum J6:20, Solnavägen 30 Karolinska Institutet, Solna, 171 64 Stockholm, Sweden; (A.S.); (W.C.); (Y.Z.); (T.F.); (P.F.); (W.-O.L.)
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9
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Strong A, Rao S, von Hardenberg S, Li D, Cox LL, Lee PC, Zhang LQ, Awotoye W, Diamond T, Gold J, Gooch C, Gowans LJJ, Hakonarson H, Hing A, Loomes K, Martin N, Marazita ML, Mononen T, Piccoli D, Pfundt R, Raskin S, Scherer SW, Sobriera N, Vaccaro C, Wang X, Watson D, Weksberg R, Bhoj E, Murray JC, Lidral AC, Butali A, Buckley MF, Roscioli T, Koolen DA, Seaver LH, Prows CA, Stottmann RW, Cox TC. A mutational hotspot in AMOTL1 defines a new syndrome of orofacial clefting, cardiac anomalies, and tall stature. Am J Med Genet A 2023; 191:1227-1239. [PMID: 36751037 PMCID: PMC10081944 DOI: 10.1002/ajmg.a.63130] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/03/2023] [Accepted: 01/17/2023] [Indexed: 02/09/2023]
Abstract
AMOTL1 encodes angiomotin-like protein 1, an actin-binding protein that regulates cell polarity, adhesion, and migration. The role of AMOTL1 in human disease is equivocal. We report a large cohort of individuals harboring heterozygous AMOTL1 variants and define a core phenotype of orofacial clefting, congenital heart disease, tall stature, auricular anomalies, and gastrointestinal manifestations in individuals with variants in AMOTL1 affecting amino acids 157-161, a functionally undefined but highly conserved region. Three individuals with AMOTL1 variants outside this region are also described who had variable presentations with orofacial clefting and multi-organ disease. Our case cohort suggests that heterozygous missense variants in AMOTL1, most commonly affecting amino acid residues 157-161, define a new orofacial clefting syndrome, and indicates an important functional role for this undefined region.
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Affiliation(s)
- Alanna Strong
- The Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Soumya Rao
- Department of Oral & Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City Kansas City, Missouri
| | | | - Dong Li
- The Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Liza L. Cox
- Department of Oral & Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City Kansas City, Missouri
| | - Paul C. Lee
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri
| | - Li Q. Zhang
- Department of Oral & Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City Kansas City, Missouri
| | - Waheed Awotoye
- Department of Orthodontics, College of Dentistry, University of Iowa, Iowa City, Iowa
| | - Tamir Diamond
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Gastroenterology, Hepatology and Nutrition. Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Jessica Gold
- The Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Catherine Gooch
- Division of Genetics and Genomic Medicine, Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri
| | - Lord Jephthah Joojo Gowans
- Department of Biochemistry and Biotechnology, Kwame Nkurumah University of Science and Technology, Kumasi, Ghana
| | - Hakon Hakonarson
- The Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Pulmonary Medicine, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Anne Hing
- Division of Craniofacial Medicine, Department of Pediatrics, University of Washington, Seattle, Washington
| | - Kathleen Loomes
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Gastroenterology, Hepatology and Nutrition. Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Nicole Martin
- Division of Clinical & Metabolic Genetics and Department of Genetic Counselling, The Hospital for Sick Children, Toronto, Ontario, Canada
- Institute of Medical Sciences and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Mary L. Marazita
- Department of Oral and Craniofacial Sciences, Center for Craniofacial and Dental Genetics School of Dental Medicine, Pittsburgh, Pennsylvania
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tarja Mononen
- Department of Clinical Genetics, Kuopio University Hospital, Kuopio, Finland
| | - David Piccoli
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Gastroenterology, Hepatology and Nutrition. Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Rolph Pfundt
- Department of Human Genetics, Radboud university medical center, Nijmegen, The Netherlands
| | - Salmo Raskin
- Assistance Center for Cleft Lip and Palate (CAIF), Curitiba-PR, Brazil
| | - Stephen W. Scherer
- The Centre for Applied Genomics and Department of Genetics & Genome Biology, The Hospital for Sick Children, Toronto, Ontario, Canada
- McLaughlin Centre and Dept. of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Nara Sobriera
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Courtney Vaccaro
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Xiang Wang
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Deborah Watson
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Rosanna Weksberg
- Institute of Medical Sciences and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
- Division of Clinical & Metabolic Genetics, Department of Pediatrics, and Genetics and Genome Biology Program, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Elizabeth Bhoj
- The Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- The Center for Applied Genomics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Genomic Diagnostics and Department of Pathology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | | | - Azeez Butali
- Departments of Oral Pathology, Radiology and Medicine, College of Dentistry & Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, Iowa
| | - Michael F. Buckley
- NSW Health Pathology Genomics Laboratory, Prince of Wales Hospital, Randwick, NSW, Australia
| | - Tony Roscioli
- NSW Health Pathology Genomics Laboratory, Prince of Wales Hospital, Randwick, NSW, Australia
- Centre for Clinical Genetics, Sydney Children’s Hospital, Randwick, NSW, Australia
- Neuroscience Research Australia and Prince of Wales Clinical School, University of New South Wales, Kensington, NSW, Australia
| | - David A. Koolen
- Department of Human Genetics, Radboud university medical center, Nijmegen, The Netherlands
| | - Laurie H. Seaver
- Spectrum Health Helen DeVos Children’s Hospital, Grand Rapids, Michigan
- Department of Pediatrics and Human Development, Michigan State University College of Human Medicine, Grand Rapids, Michigan
| | - Cynthia A. Prows
- Divisions of Human Genetics and Patient Services, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
| | - Rolf W. Stottmann
- Divisions of Human Genetics and Patient Services, Cincinnati Children’s Hospital Medical Center, Cincinnati, Ohio
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
- Steve & Cindy Rasmussen Institute for Genomic Medicine, Nationwide Children’s Hospital, Columbus, Ohio
- Department of Pediatrics, The Ohio State University School of Medicine, Columbus, Ohio, USA
| | - Timothy C. Cox
- Department of Oral & Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City Kansas City, Missouri
- Department of Pediatrics, School of Medicine, University of Missouri-Kansas City Kansas City, Missouri, 64108, USA
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10
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Amirifar P, Kissil J. The role of Motin family proteins in tumorigenesis-an update. Oncogene 2023; 42:1265-1271. [PMID: 36973516 DOI: 10.1038/s41388-023-02677-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023]
Abstract
The Motin protein family consists of three members: AMOT (p80 and p130 isoforms), AMOT-like protein 1 (AMOTL1), and AMOT-like protein 2 (AMOTL2). The family members play an important role in processes such as cell proliferation, migration, angiogenesis, tight junction formation, and cell polarity. These functions are mediated through the involvement of the Motins in the regulation of different signal transduction pathways, including those regulated by small G-proteins and the Hippo-YAP pathway. One of the more characterized aspects of Motin family function is their role in regulating signaling through the Hippo-YAP pathway, and while some studies suggest a YAP-inhibitory function other studies indicate the Motins are required for YAP activity. This duality is also reflected in previous reports, often contradictory, that suggest the Motin proteins can function as oncogenes or tumor suppressors in tumorigenesis. In this review we summarize recent findings and integrate that with the existing work describing the multifunctional role of the Motins in different cancers. The emerging picture suggests that the Motin protein function is cell-type and context dependent and that further investigation in relevant cell types and whole organism models is required for the elucidation of the function of this protein family.
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Affiliation(s)
- Parisa Amirifar
- Department of Molecular Oncology, Cancer Biology Evolution Program, H. Lee Moffitt Cancer Center, Tampa, FL, USA
| | - Joseph Kissil
- Department of Molecular Oncology, Cancer Biology Evolution Program, H. Lee Moffitt Cancer Center, Tampa, FL, USA.
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11
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CircAMOTL1 RNA and AMOTL1 Protein: Complex Functions of AMOTL1 Gene Products. Int J Mol Sci 2023; 24:ijms24032103. [PMID: 36768425 PMCID: PMC9916871 DOI: 10.3390/ijms24032103] [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: 11/09/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/25/2023] Open
Abstract
The complexity of the cellular proteome facilitates the control of a wide range of cellular processes. Non-coding RNAs, including microRNAs and long non-coding RNAs, greatly contribute to the repertoire of tools used by cells to orchestrate various functions. Circular RNAs (circRNAs) constitute a specific class of non-coding RNAs that have recently emerged as a widely generated class of molecules produced from many eukaryotic genes that play essential roles in regulating cellular processes in health and disease. This review summarizes current knowledge about circRNAs and focuses on the functions of AMOTL1 circRNAs and AMOTL1 protein. Both products from the AMOTL1 gene have well-known functions in physiology, cancer, and other disorders. Using AMOTL1 as an example, we illustrate how focusing on both circRNAs and proteins produced from the same gene contributes to a better understanding of gene functions.
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12
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Ahmad US, Uttagomol J, Wan H. The Regulation of the Hippo Pathway by Intercellular Junction Proteins. Life (Basel) 2022; 12:1792. [PMID: 36362947 PMCID: PMC9696951 DOI: 10.3390/life12111792] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/23/2022] [Accepted: 11/03/2022] [Indexed: 08/24/2023] Open
Abstract
The Hippo pathway is an evolutionarily conserved pathway that serves to promote cell death and differentiation while inhibiting cellular proliferation across species. The downstream effectors of this pathway, yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), are considered vital in promoting the output of the Hippo pathway, with activation of upstream kinases negatively regulating YAP/TAZ activity. The upstream regulation of the Hippo pathway is not entirely understood on a molecular level. However, several studies have shown that numerous cellular and non-cellular mechanisms such as cell polarity, contact inhibition, soluble factors, mechanical forces, and metabolism can convey external stimuli to the intracellular kinase cascade, promoting the activation of key components of the Hippo pathway and therefore regulating the subcellular localisation and protein activity of YAP/TAZ. This review will summarise what we have learnt about the role of intercellular junction-associated proteins in the activation of this pathway, including adherens junctions and tight junctions, and in particular our latest findings about the desmosomal components, including desmoglein-3 (DSG3), in the regulation of YAP signalling, phosphorylation, and subcellular translocation.
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Affiliation(s)
- Usama Sharif Ahmad
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Jutamas Uttagomol
- Oral Diagnosis Department, Faculty of Dentistry, Naresuan University, Phitsanulok 65000, Thailand
| | - Hong Wan
- Centre for Oral Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
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13
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Kirino S, Suzuki M, Ogawa T, Takasawa K, Adachi E, Gau M, Takahashi K, Ikeno M, Yamada M, Suzuki H, Kosaki K, Moriyama K, Yoshida M, Morio T, Kashimada K. Clinical report: Chronic liver dysfunction in an individual with an AMOTL1 variant. Eur J Med Genet 2022; 65:104623. [PMID: 36116699 DOI: 10.1016/j.ejmg.2022.104623] [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: 04/29/2022] [Revised: 08/05/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022]
Abstract
AMOTL1 is a member of the Motin protein family and localizes to tight junctions and is involved in cell polarity and paracellular permeability. Pathological variants have been reported in three patients from two separate families in recent years. The clinical spectrum includes cleft lip and palate along with a high incidence of congenital cardiac disease and ear malformations. We report a case of AMOTL1 pathogenic variant in a 11-year-old male patient with nonspecific and chronic liver dysfunction accompanied by persistently elevated liver enzymes since early infancy. Liver biopsy at 8 years of age revealed a mildly dilated central vein and sinusoid with no specific etiology. Liver dysfunction is not a known clinical feature of AMOTL1 malfunction. However, given that the protein is known to be involved in angiogenesis, it may be inferred that abnormalities in this process may lead to liver dysfunction. This is the first report of liver dysfunction identified in a patient with AMOTL1 malfunction, which will shed light on other putative functions of the protein.
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Affiliation(s)
- Shizuka Kirino
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Mitsuyoshi Suzuki
- Department of Pediatrics, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Takuya Ogawa
- Department of Maxillofacial Orthognathics, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kei Takasawa
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Eriko Adachi
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Maki Gau
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Ken Takahashi
- Department of Pediatrics, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Mitsuru Ikeno
- Department of Pediatrics, Juntendo University Faculty of Medicine, Tokyo, Japan
| | - Mamiko Yamada
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Hisato Suzuki
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Kenjiro Kosaki
- Center for Medical Genetics, Keio University School of Medicine, Tokyo, Japan
| | - Keiji Moriyama
- Department of Maxillofacial Orthognathics, Tokyo Medical and Dental University, Tokyo, Japan
| | - Masayuki Yoshida
- Department of Medical Genetics, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Kenichi Kashimada
- Department of Pediatrics and Developmental Biology, Tokyo Medical and Dental University, Tokyo, Japan; Department of Pediatrics, Juntendo University Faculty of Medicine, Tokyo, Japan.
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14
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Fragment-based exploration of the 14-3-3/Amot-p130 interface. Curr Res Struct Biol 2022; 4:21-28. [PMID: 35036934 PMCID: PMC8743172 DOI: 10.1016/j.crstbi.2021.12.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 12/06/2021] [Accepted: 12/20/2021] [Indexed: 02/06/2023] Open
Abstract
The modulation of protein-protein interactions (PPIs) has developed into a well-established field of drug discovery. Despite the advances achieved in the field, many PPIs are still deemed as ‘undruggable’ targets and the design of PPIs stabilizers remains a significant challenge. The application of fragment-based methods for the identification of drug leads and to evaluate the ‘tractability’ of the desired protein target has seen a remarkable development in recent years. In this study, we explore the molecular characteristics of the 14-3-3/Amot-p130 PPI and the conceptual possibility of targeting this interface using X-ray crystallography fragment-based screening. We report the first structural elucidation of the 14-3-3 binding motif of Amot-p130 and the characterization of the binding mode and affinities involved. We made use of fragments to probe the ‘ligandability’ of the 14-3-3/Amot-p130 composite binding pocket. Here we disclose initial hits with promising stabilizing activity and an early-stage selectivity toward the Amot-p130 motifs over other representatives 14-3-3 partners. Our findings highlight the potential of using fragments to characterize and explore proteins' surfaces and might provide a starting point toward the development of small molecules capable of acting as molecular glues. Phosphorylation of Ser 175 mediates binding of Amot-p130 to 14-3-3. The crystal structure of the 14-3-3σΔC/Amot-p130 peptide complex describes the interface. A fragment-based exploration of the interface assesses ‘ligandability’. Fragments binding at the 14-3-3/Amot-p130 interface display an initial stabilizing activity.
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Key Words
- 14-3-3 /protein-protein interactions stabilizers
- AIP4, Atrophin-1 interacting protein 4
- Amot, Angiomotin
- Amot-p130
- AmotL1/2, Angiomotin-like 1/2
- FBDD, Fragment-based drug discovery
- FP, Fluorescence polarization
- Fragment-based drug discovery
- Lats 1/2, Large tumor suppressor 1/2
- Ligandability
- MST, Microscale thermophoresis
- PPI, Protein-protein interaction
- PTMs, post-translational modifications
- X-ray crystallography
- YAP1, Yes-associated protein 1
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15
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Rotoli D, Díaz-Flores L, Gutiérrez R, Morales M, Ávila J, Martín-Vasallo P. AmotL2, IQGAP1, and FKBP51 Scaffold Proteins in Glioblastoma Stem Cell Niches. J Histochem Cytochem 2022; 70:9-16. [PMID: 34165350 PMCID: PMC8721575 DOI: 10.1369/00221554211025480] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Glioma stem cells (GSCs) live in a continuous process of stemness reprogramming to achieve specific cell commitment within the so-called GSC niches, specifically located in periarteriolar regions. In this review, we analyze the expression levels, cellular and subcellular location, and role of three scaffold proteins (IQGAP1, FKBP51, and AmotL2) in GSC niches. Scaffold proteins contribute to cell differentiation, migration, and angiogenesis in glioblastoma. It could be of diagnostic interest for establishing stages, for therapeutic targets, and for improving glioblastoma prognosis, which is still at the experimental level.
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Affiliation(s)
- Deborah Rotoli
- Department of Bioquímica, Microbiología, Biología Celular y Genética, Universidad de La Laguna, San Cristóbal de La Laguna, Spain,Instituto de Tecnología Biomédicas de Canarias, Universidad de La Laguna, San Cristóbal de La Laguna, Spain,Istituto per l’Endocrinologia e l’Oncologia Gaetano Salvatore, Naples, Italy
| | - Lucio Díaz-Flores
- Department of Basic Medical Sciences and Department of Anatomy, Pathology, Histology and Radiology, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Ricardo Gutiérrez
- Department of Basic Medical Sciences and Department of Anatomy, Pathology, Histology and Radiology, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Manuel Morales
- Oncología Médica, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Julio Ávila
- Department of Bioquímica, Microbiología, Biología Celular y Genética, Universidad de La Laguna, San Cristóbal de La Laguna, Spain,Instituto de Tecnología Biomédicas de Canarias, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Pablo Martín-Vasallo
- Pablo Martín-Vasallo, UD Bioquímica y Biología Molecular, Universidad de La Laguna, Av/Astrofísico Sánchez s/n, 38206 San Cristóbal de La Laguna, Tenerife, Spain. E-mail:
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16
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Xu G, Seng Z, Zhang M, Qu J. Angiomotin-like 1 plays a tumor-promoting role in glioma by enhancing the activation of YAP1 signaling. ENVIRONMENTAL TOXICOLOGY 2021; 36:2500-2511. [PMID: 34480788 DOI: 10.1002/tox.23363] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Angiomotin-like 1 (AMOTL1) is reportedly a pivotal tumor-associated protein that is strongly associated with the tumorigenesis of multiple malignant tumors. However, the issue of whether AMOTL1 plays a role in the tumorigenesis of glioma remains unclear. The aim of this work was to explore the possible relationship between AMOTL1 and glioma progression. Results demonstrated that high levels of AMOTL1 in glioma tissues were associated with a reduced survival rate in patients with glioma. Cellular functional assays revealed that silencing of AMOTL1 in glioma cell lines substantially decreased cell proliferation and invasion and increased cell apoptosis. Further investigation revealed that silencing of AMOTL1 inhibited the activation of yes-associated protein 1 (YAP1) and decreased the expression of YAP1 target genes. Reactivation of YAP1 reversed AMOTL1-silencing-induced antitumor effects, whereas inhibition of YAP1 abolished AMOTL1-overexpression-induced tumor-promoting effects in glioma cells. Silencing of AMOTL1 also retarded the growth of glioma cell-derived xenograft tumors in vivo. In conclusion, these findings suggested that AMOTL1 may exert a tumor-promoting function in glioma by enhancing the activation of YAP1 signaling. This work suggested AMOTL1 as a potential target for the development of antiglioma therapy.
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Affiliation(s)
- Gang Xu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zhiyuan Seng
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ming Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jianqiang Qu
- Department of Neurosurgery, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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17
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Zhang Y, Zhang Y, Kameishi S, Barutello G, Zheng Y, Tobin NP, Nicosia J, Hennig K, Chiu DKC, Balland M, Barker TH, Cavallo F, Holmgren L. The Amot/integrin protein complex transmits mechanical forces required for vascular expansion. Cell Rep 2021; 36:109616. [PMID: 34433061 DOI: 10.1016/j.celrep.2021.109616] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/07/2021] [Accepted: 08/05/2021] [Indexed: 12/24/2022] Open
Abstract
Vascular development is a complex multistep process involving the coordination of cellular functions such as migration, proliferation, and differentiation. How mechanical forces generated by cells and transmission of these physical forces control vascular development is poorly understood. Using an endothelial-specific genetic model in mice, we show that deletion of the scaffold protein Angiomotin (Amot) inhibits migration and expansion of the physiological and pathological vascular network. We further show that Amot is required for tip cell migration and the extension of cellular filopodia. Exploiting in vivo and in vitro molecular approaches, we show that Amot binds Talin and is essential for relaying forces between fibronectin and the cytoskeleton. Finally, we provide evidence that Amot is an important component of the endothelial integrin adhesome and propose that Amot integrates spatial cues from the extracellular matrix to form a functional vascular network.
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Affiliation(s)
- Yuanyuan Zhang
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden
| | - Yumeng Zhang
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden
| | - Sumako Kameishi
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden
| | - Giuseppina Barutello
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin 10126, Italy
| | - Yujuan Zheng
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden
| | - Nicholas P Tobin
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden
| | - John Nicosia
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Katharina Hennig
- Laboratoire Interdisciplinaire de Physique, Université Joseph Fourier (Grenoble 1), Saint Martin d'Hères Cedex, 38402, France
| | - David Kung-Chun Chiu
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden
| | - Martial Balland
- Laboratoire Interdisciplinaire de Physique, Université Joseph Fourier (Grenoble 1), Saint Martin d'Hères Cedex, 38402, France
| | - Thomas H Barker
- Department of Biomedical Engineering, University of Virginia, Charlottesville, VA 22904, USA
| | - Federica Cavallo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Turin, Turin 10126, Italy
| | - Lars Holmgren
- Department of Oncology-Pathology, Bioclinicum, Karolinska Institutet, Stockholm 17164, Sweden.
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18
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Peralta M, Ortiz Lopez L, Jerabkova K, Lucchesi T, Vitre B, Han D, Guillemot L, Dingare C, Sumara I, Mercader N, Lecaudey V, Delaval B, Meilhac SM, Vermot J. Intraflagellar Transport Complex B Proteins Regulate the Hippo Effector Yap1 during Cardiogenesis. Cell Rep 2021; 32:107932. [PMID: 32698004 DOI: 10.1016/j.celrep.2020.107932] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 04/30/2020] [Accepted: 06/29/2020] [Indexed: 02/06/2023] Open
Abstract
Cilia and the intraflagellar transport (IFT) proteins involved in ciliogenesis are associated with congenital heart diseases (CHDs). However, the molecular links between cilia, IFT proteins, and cardiogenesis are yet to be established. Using a combination of biochemistry, genetics, and live-imaging methods, we show that IFT complex B proteins (Ift88, Ift54, and Ift20) modulate the Hippo pathway effector YAP1 in zebrafish and mouse. We demonstrate that this interaction is key to restrict the formation of the proepicardium and the myocardium. In cellulo experiments suggest that IFT88 and IFT20 interact with YAP1 in the cytoplasm and functionally modulate its activity, identifying a molecular link between cilia-related proteins and the Hippo pathway. Taken together, our results highlight a noncanonical role for IFT complex B proteins during cardiogenesis and shed light on a mechanism of action for ciliary proteins in YAP1 regulation.
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Affiliation(s)
- Marina Peralta
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France; Université de Strasbourg, Illkirch, France
| | - Laia Ortiz Lopez
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France; Université de Strasbourg, Illkirch, France
| | - Katerina Jerabkova
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France; Université de Strasbourg, Illkirch, France
| | - Tommaso Lucchesi
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, Paris, France; INSERM UMR1163, Université Paris Descartes, Paris, France; Sorbonne Université, Collège Doctoral, F-75005, Paris, France
| | - Benjamin Vitre
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), CNRS, Université de Montpellier, Montpellier, France
| | - Dong Han
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, Paris, France; INSERM UMR1163, Université Paris Descartes, Paris, France
| | - Laurent Guillemot
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, Paris, France; INSERM UMR1163, Université Paris Descartes, Paris, France
| | - Chaitanya Dingare
- Institute for Cell Biology and Neurosciences, Goethe University of Frankfurt, Frankfurt, Germany
| | - Izabela Sumara
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France; Université de Strasbourg, Illkirch, France
| | - Nadia Mercader
- Institute of Anatomy, University of Bern, Bern, Switzerland; Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Virginie Lecaudey
- Institute for Cell Biology and Neurosciences, Goethe University of Frankfurt, Frankfurt, Germany
| | - Benedicte Delaval
- Centre de Recherche en Biologie Cellulaire de Montpellier (CRBM), CNRS, Université de Montpellier, Montpellier, France
| | - Sigolène M Meilhac
- Imagine-Institut Pasteur, Laboratory of Heart Morphogenesis, Paris, France; INSERM UMR1163, Université Paris Descartes, Paris, France
| | - Julien Vermot
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, Illkirch, France; Centre National de la Recherche Scientifique, UMR7104, Illkirch, France; Institut National de la Santé et de la Recherche Médicale, U964, Illkirch, France; Université de Strasbourg, Illkirch, France; Sorbonne Université, Collège Doctoral, F-75005, Paris, France; Department of Bioengineering, Imperial College London, London, UK.
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19
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Angiomotin Counteracts the Negative Regulatory Effect of Host WWOX on Viral PPxY-Mediated Egress. J Virol 2021; 95:JVI.00121-21. [PMID: 33536174 PMCID: PMC8103691 DOI: 10.1128/jvi.00121-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Filoviridae family members Ebola (EBOV) and Marburg (MARV) viruses and Arenaviridae family member Lassa virus (LASV) are emerging pathogens that can cause hemorrhagic fever and high rates of mortality in humans. A better understanding of the interplay between these viruses and the host will inform about the biology of these pathogens, and may lead to the identification of new targets for therapeutic development. Notably, expression of the filovirus VP40 and LASV Z matrix proteins alone drives assembly and egress of virus-like particles (VLPs). The conserved PPxY Late (L) domain motifs in the filovirus VP40 and LASV Z proteins play a key role in the budding process by mediating interactions with select host WW-domain containing proteins that then regulate virus egress and spread. To identify the full complement of host WW-domain interactors, we utilized WT and PPxY mutant peptides from EBOV and MARV VP40 and LASV Z proteins to screen an array of GST-WW-domain fusion proteins. We identified WW domain-containing oxidoreductase (WWOX) as a novel PPxY-dependent interactor, and we went on to show that full-length WWOX physically interacts with eVP40, mVP40 and LASV Z to negatively regulate egress of VLPs and of a live VSV/Ebola recombinant virus (M40). Interestingly, WWOX is a versatile host protein that regulates multiple signaling pathways and cellular processes via modular interactions between its WW-domains and PPxY motifs of select interacting partners, including host angiomotin (AMOT). Notably, we demonstrated recently that expression of endogenous AMOT not only positively regulates egress of VLPs, but also promotes egress and spread of live EBOV and MARV. Toward the mechanism of action, we show that the competitive and modular interplay among WWOX-AMOT-VP40/Z regulates VLP and M40 virus egress. Thus, WWOX is the newest member of an emerging group of host WW-domain interactors (e.g. BAG3; YAP/TAZ) that negatively regulate viral egress. These findings further highlight the complex interplay of virus-host PPxY/WW-domain interactions and their potential impact on the biology of both the virus and the host during infection.Author Summary Filoviruses (Ebola [EBOV] and Marburg [MARV]) and arenavirus (Lassa virus; LASV) are zoonotic, emerging pathogens that cause outbreaks of severe hemorrhagic fever in humans. A fundamental understanding of the virus-host interface is critical for understanding the biology of these viruses and for developing future strategies for therapeutic intervention. Here, we identified host WW-domain containing protein WWOX as a novel interactor with VP40 and Z, and showed that WWOX inhibited budding of VP40/Z virus-like particles (VLPs) and live virus in a PPxY/WW-domain dependent manner. Our findings are important to the field as they expand the repertoire of host interactors found to regulate PPxY-mediated budding of RNA viruses, and further highlight the competitive interplay and modular virus-host interactions that impact both the virus lifecycle and the host cell.
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20
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Li D, Shen Y, Ren H, Wang L, Yang J, Wang Y. Angiomotin-p130 inhibits vasculogenic mimicry formation of small cell lung cancer independently of Smad2/3 signal pathway. J Bioenerg Biomembr 2021; 53:295-305. [PMID: 33712992 DOI: 10.1007/s10863-021-09891-7] [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] [Received: 12/14/2020] [Accepted: 03/05/2021] [Indexed: 01/20/2023]
Abstract
Lung cancer, the most concerning malignancy worldwide and one of the leading causes of cancer-related deaths. Growing evidence indicates that Angiomotin (Amot)-p130 plays an important role in types of cancer, including breast cancer and gastric cancer. Moreover, evidence suggested that the low Amot-p130 expression correlates with the poor prognosis of lung cancer patients, however, the role and mechanism of Amot-p130 in lung cancer is still unclear. In this study, we showed that Amot-p130 expression was reduced in lung cancer tissues, compared with the adjacent para-carcinoma tissues. In addition, we observed that the reduced expression of Amot-p130 was associated with vasculogenic mimicry (VM) channels formation in lung cancer tissues. Amot-p130 expression was differently expression in lung cancer cell line H446, H1688 and H2227 compared with the normal human lung cells HFL1. To clarify the role of Amot-p130 in lung cancer, we constructed the Amot-p130 expressing H446 cells and Amot-p130 silencing H1299 cells. We confirmed that Amot-p130 overexpression inhibited the migration and invasion of lung cancer cells, whereas its silence promoted cell migration and invasion. Interestingly, we also found that Amot-p130 overexpression suppressed VM tube formation in H446 cells, while its knockdown promoted VM tube formation in H2227 cells. Further studies suggested that Amot-p130 plays roles in M tube formation of lung cancer cell V are independent on smad2/3 signaling pathway. Finally, inoculation of Amot-p130 expressing H446 cells and Amot-p130 silencing H1299 cells into nude mice suppressed tumor growth, when compared with the control group. Based on these results, Amot-p130 serves as a possible diagnostic and therapeutic target in lung cancer patients, and may be an effective mediator of VM formation in lung cancer.
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Affiliation(s)
- Dan Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yanwei Shen
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hui Ren
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Li Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jin Yang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
| | - Yuan Wang
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, People's Republic of China.
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21
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Sang T, Yang J, Liu J, Han Y, Li Y, Zhou X, Wang X. AMOT suppresses tumor progression via regulating DNA damage response signaling in diffuse large B-cell lymphoma. Cancer Gene Ther 2021; 28:1125-1135. [PMID: 33414519 DOI: 10.1038/s41417-020-00258-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 10/22/2020] [Accepted: 11/04/2020] [Indexed: 12/29/2022]
Abstract
Angiomotin (AMOT) is a membrane protein that is aberrantly expressed in a variety of solid tumors. Accumulating evidence support that AMOT is involved in the pathological processes of tumor proliferation, apoptosis, and invasion. However, the potential role of AMOT in the pathogenesis of diffuse large B-cell lymphoma (DLBCL) remains elusive. In the present study, we investigated the expression level and biological function of AMOT in DLBCL. AMOT expression was significantly reduced in DLBCL biopsy section, and low AMOT expression was associated with poor clinical prognosis. Overexpression of AMOT by lentivirus in human DLBCL cells induced cell viability inhibition concomitant with an increased percentage of cells in G1 phase and decreased percentage in S phase. Moreover, AMOT upregulation increased the sensitivity of DLBCL cells to doxorubicin. Furthermore, overexpression of AMOT led to reduced activation of key kinases for the DNA damage response (DDR). The above results indicated that AMOT acts as a tumor suppressor via inhibition of the DDR, thus reducing the viability while increasing the chemosensitivity in DLBCL. In summary, AMOT may be a novel potential target for DLBCL therapeutic intervention.
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Affiliation(s)
- Tan Sang
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China.,School of Medicine, Shandong University, Jinan, Shandong, 250012, China.,Department of Hematology, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Juan Yang
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China.,School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Jiarui Liu
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China.,School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Yang Han
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China.,School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ying Li
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China.,School of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xiangxiang Zhou
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China. .,School of Medicine, Shandong University, Jinan, Shandong, 250012, China. .,Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China. .,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, Shandong, 250021, China. .,National Clinical Research Center for Hematologic Diseases, Jinan, Shandong, 250021, China.
| | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250021, China. .,School of Medicine, Shandong University, Jinan, Shandong, 250012, China. .,Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China. .,Shandong Provincial Engineering Research Center of Lymphoma, Jinan, Shandong, 250021, China. .,National Clinical Research Center for Hematologic Diseases, Jinan, Shandong, 250021, China.
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22
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Wigerius M, Quinn D, Fawcett JP. Emerging roles for angiomotin in the nervous system. Sci Signal 2020; 13:13/655/eabc0635. [PMID: 33109746 DOI: 10.1126/scisignal.abc0635] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Angiomotins are a family of molecular scaffolding proteins that function to organize contact points (called tight junctions in vertebrates) between adjacent cells. Some angiomotin isoforms bind to the actin cytoskeleton and are part of signaling pathways that influence cell morphology and migration. Others cooperate with components of the Hippo signaling pathway and the associated networks to control organ growth. The 130-kDa isoform, AMOT-p130, has critical roles in neural stem cell differentiation, dendritic patterning, and synaptic maturation-attributes that are essential for normal brain development and are consistent with its association with autism. Here, we review and discuss the evidence that supports a role for AMOT-p130 in neuronal development in the central nervous system.
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Affiliation(s)
- Michael Wigerius
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada.
| | - Dylan Quinn
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - James P Fawcett
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada. .,Department of Surgery, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
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23
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Rips J, Mor-Shaked H, Erdin S, Yanovsky-Dagan S, Eventov-Friedman S, Harel T. De novo variant in AMOTL1 in infant with cleft lip and palate, imperforate anus and dysmorphic features. Am J Med Genet A 2020; 185:190-195. [PMID: 33026150 DOI: 10.1002/ajmg.a.61901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/06/2020] [Accepted: 09/05/2020] [Indexed: 12/19/2022]
Abstract
AMOTL1 belongs to the Motin family of proteins that are involved in organogenesis and tumorigenesis through regulation of cellular migration, tube formation, and angiogenesis. While involvement of all AMOTs in development or suppression of cancers is relatively well described, little is known about the congenital phenotype of pathogenic variants in these genes in humans. Recently, a heterozygous variant in AMOTL1 was published in association with orofacial clefts and cardiac abnormalities in an affected father and his daughter. However, studies in mice did not recapitulate the human phenotype and the case was summarized as inconclusive. We present a female infant with cleft lip and palate, imperforate anus and dysmorphic features, in whom trio exome sequencing revealed a de novo variant in AMOTL1 affecting a highly conserved amino acid (c.479C>T; p.[Pro160Leu]). Bioinformatic predictions and in silico modeling supported pathogenicity. This case reinforces the conjecture regarding the disruptive effect of pathogenic variants in AMOTL1 on organ formation in humans. Studies of additional families will reveal the full phenotypic spectrum associated with this multiple malformation syndrome.
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Affiliation(s)
- Jonathan Rips
- Department of Pediatrics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Hagar Mor-Shaked
- Department of Genetics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Serkan Erdin
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, Massachusetts, USA.,Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Shira Yanovsky-Dagan
- Department of Genetics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | | | - Tamar Harel
- Department of Genetics, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
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24
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Rouaud F, Sluysmans S, Flinois A, Shah J, Vasileva E, Citi S. Scaffolding proteins of vertebrate apical junctions: structure, functions and biophysics. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1862:183399. [DOI: 10.1016/j.bbamem.2020.183399] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/05/2020] [Accepted: 06/11/2020] [Indexed: 12/11/2022]
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25
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Guo Z, Wang X, Yang Y, Chen W, Zhang K, Teng B, Huang C, Zhao Q, Qiu Z. Hypoxic Tumor-Derived Exosomal Long Noncoding RNA UCA1 Promotes Angiogenesis via miR-96-5p/AMOTL2 in Pancreatic Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:179-195. [PMID: 32942233 PMCID: PMC7498711 DOI: 10.1016/j.omtn.2020.08.021] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/15/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023]
Abstract
The hypoxic microenvironment, an important feature of solid tumors, promotes tumor cells to release exosomes and enhances tumor angiogenesis. However, the detailed functions of hypoxic exosomes and the mechanisms underlying their effects in pancreatic cancer (PC) remain mysterious. Here, we observed that hypoxic exosomes derived from PC cells promoted cell migration and tube formation of human umbilical vein endothelial cells (HUVECs). The long noncoding RNA (lncRNA) UCA1, a key factor, was highly expressed in exosomes derived from hypoxic PC cells and could be transferred to HUVECs through the exosomes. In addition, the expression levels of UCA1 in exosomes derived from PC patients' serum were higher than in healthy controls and were associated with poor survival of PC patients. Moreover, hypoxic exosomal UCA1 could promote angiogenesis and tumor growth both in vitro and in vivo. With respect to the functional mechanism, UCA1 acted as a sponge of microRNA (miR)-96-5p, relieving the repressive effects of miR-96-5p on the expression of its target gene AMOTL2. Collectively, these results indicate that hypoxic exosomal UCA1 could promote angiogenesis and tumor growth through the miR-96-5p/AMOTL2/ERK1/2 axis and therefore, serve as a novel target for PC treatment.
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Affiliation(s)
- Zengya Guo
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China
| | - Xiaofeng Wang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China
| | - Yuhan Yang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China
| | - Weiwei Chen
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China
| | - Kundong Zhang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China
| | - Buwei Teng
- Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, 6 Zhenhua East Road, Haizhou District, City of Lianyungang, Jiangsu Province 222061, People's Republic of China
| | - Chen Huang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China.
| | - Qian Zhao
- Department of Pathophysiology Key Laboratory of Cell Differentiation and Apoptosis and National Ministry of Education, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, People's Republic of China.
| | - Zhengjun Qiu
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 100 Haining Road, Shanghai 200080, People's Republic of China.
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26
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Brunner P, Hastar N, Kaehler C, Burdzinski W, Jatzlau J, Knaus P. AMOT130 drives BMP-SMAD signaling at the apical membrane in polarized cells. Mol Biol Cell 2019; 31:118-130. [PMID: 31800378 PMCID: PMC6960409 DOI: 10.1091/mbc.e19-03-0179] [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] [Indexed: 11/12/2022] Open
Abstract
The large isoform of the transmembrane protein angiomotin (AMOT130) controls cell proliferation and migration of many cell types. AMOT130 associates to the actin cytoskeleton and regulates tight-junction maintenance and signaling often via endosomal uptake of polarity proteins at tight junctions. AMOT130 is highly polarized and present only at the apical side of polarized cells. Here we show that bone morphogenetic protein (BMP) growth factor signaling and AMOT function are interlinked in apical-basal polarized cells. BMP6 controls AMOT internalization and endosomal trafficking in epithelial cells. AMOT130 interacts with the BMP receptor BMPR2 and facilitates SMAD activation and target gene expression. We further demonstrate that this effect of AMOT on BMP-SMAD signaling is dependent on endocytosis and specific to the apical side of polarized epithelial and endothelial cells. Knockdown of AMOT reduces SMAD signaling only from the apical side of polarized cells, while basolateral BMP-SMAD signaling is unaffected. This allows for the first time interference with BMP signaling in a polarized manner and identifies AMOT130 as a novel BMP signaling regulator.
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Affiliation(s)
- Patrizia Brunner
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin School of Integrative Oncology, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Nurcan Hastar
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Christian Kaehler
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Wiktor Burdzinski
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany
| | - Jerome Jatzlau
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
| | - Petra Knaus
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany.,Berlin-Brandenburg School for Regenerative Therapies, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany
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27
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Rojek KO, Krzemień J, Doleżyczek H, Boguszewski PM, Kaczmarek L, Konopka W, Rylski M, Jaworski J, Holmgren L, Prószyński TJ. Amot and Yap1 regulate neuronal dendritic tree complexity and locomotor coordination in mice. PLoS Biol 2019; 17:e3000253. [PMID: 31042703 PMCID: PMC6513106 DOI: 10.1371/journal.pbio.3000253] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 05/13/2019] [Accepted: 04/18/2019] [Indexed: 12/21/2022] Open
Abstract
The angiomotin (Amot)-Yes-associated protein 1 (Yap1) complex plays a major role in regulating the inhibition of cell contact, cellular polarity, and cell growth in many cell types. However, the function of Amot and the Hippo pathway transcription coactivator Yap1 in the central nervous system remains unclear. We found that Amot is a critical mediator of dendritic morphogenesis in cultured hippocampal cells and Purkinje cells in the brain. Amot function in developing neurons depends on interactions with Yap1, which is also indispensable for dendrite growth and arborization in vitro. The conditional deletion of Amot and Yap1 in neurons led to a decrease in the complexity of Purkinje cell dendritic trees, abnormal cerebellar morphology, and impairments in motor coordination. Our results indicate that the function of Amot and Yap1 in dendrite growth does not rely on interactions with TEA domain (TEAD) transcription factors or the expression of Hippo pathway-dependent genes. Instead, Amot and Yap1 regulate dendrite development by affecting the phosphorylation of S6 kinase and its target S6 ribosomal protein.
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Affiliation(s)
- Katarzyna O. Rojek
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Joanna Krzemień
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Hubert Doleżyczek
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Paweł M. Boguszewski
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Leszek Kaczmarek
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Witold Konopka
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Marcin Rylski
- Centre of Postgraduate Medical Education, Warsaw, Poland
- Institute of Psychiatry and Neurology, Warsaw, Poland
| | - Jacek Jaworski
- International Institute of Molecular and Cell Biology, Warsaw, Poland
| | | | - Tomasz J. Prószyński
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- * E-mail:
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28
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Farrell A, Alahari S, Ermini L, Tagliaferro A, Litvack M, Post M, Caniggia I. Faulty oxygen sensing disrupts angiomotin function in trophoblast cell migration and predisposes to preeclampsia. JCI Insight 2019; 4:127009. [PMID: 30996134 DOI: 10.1172/jci.insight.127009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/14/2019] [Indexed: 12/17/2022] Open
Abstract
Human placenta development and a successful pregnancy is incumbent upon precise oxygen-dependent control of trophoblast migration/invasion. Persistent low oxygen leading to failed trophoblast invasion promotes inadequate spiral artery remodeling, a characteristic of preeclampsia. Angiomotin (AMOT) is a multifaceted scaffolding protein involved in cell polarity and migration, yet its upstream regulation and significance in the human placenta remain unknown. Herein, we show that AMOT is primarily expressed in migratory extravillous trophoblast cells (EVTs) of the intermediate and distal anchoring column. Its expression increases after 10 weeks of gestation when oxygen tension rises and EVT migration/invasion peaks. Time-lapse imaging confirmed that the AMOT 80-kDa isoform promotes migration of trophoblastic JEG3 and HTR-8/SVneo cells. In preeclampsia, however, AMOT expression is decreased and its localization to migratory fetomaternal interface EVTs is disrupted. We demonstrate that Jumonji C domain-containing protein 6 (JMJD6), an oxygen sensor, positively regulates AMOT via oxygen-dependent lysyl hydroxylation. Furthermore, in vitro and ex vivo studies show that transforming growth factor-β (TGF-β) regulates AMOT expression, its interaction with polarity protein PAR6, and its subcellular redistribution from tight junctions to cytoskeleton. Our data reveal an oxygen- and TGF-β-driven migratory function for AMOT in the human placenta, and implicate its deficiency in impaired trophoblast migration that plagues preeclampsia.
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Affiliation(s)
- Abby Farrell
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Institute of Medical Sciences, and
| | - Sruthi Alahari
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Leonardo Ermini
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Andrea Tagliaferro
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Michael Litvack
- Program in Translational Medicine, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Martin Post
- Institute of Medical Sciences, and.,Program in Translational Medicine, Peter Gilgan Centre for Research and Learning, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Isabella Caniggia
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Institute of Medical Sciences, and.,Department of Physiology, University of Toronto, Toronto, Ontario, Canada.,Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada
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29
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Boopathy GTK, Hong W. Role of Hippo Pathway-YAP/TAZ Signaling in Angiogenesis. Front Cell Dev Biol 2019; 7:49. [PMID: 31024911 PMCID: PMC6468149 DOI: 10.3389/fcell.2019.00049] [Citation(s) in RCA: 224] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 03/19/2019] [Indexed: 12/12/2022] Open
Abstract
Angiogenesis is a highly coordinated process of formation of new blood vessels from pre-existing blood vessels. The process of development of the proper vascular network is a complex process that is crucial for the vertebrate development. Several studies have defined essential roles of Hippo pathway-YAP/TAZ in organ size control, tissue regeneration, and self-renewal. Thus Hippo pathway is one of the central components in tissue homeostasis. There are mounting evidences on the eminence of Hippo pathway-YAP/TAZ in angiogenesis in multiple model organisms. Hippo pathway-YAP/TAZ is now demonstrated to regulate endothelial cell proliferation, migration and survival; subsequently regulating vascular sprouting, vascular barrier formation, and vascular remodeling. Major intracellular signaling programs that regulate angiogenesis concomitantly activate YAP/TAZ to regulate key events in angiogenesis. In this review, we provide a brief overview of the recent findings in the Hippo pathway and YAP/TAZ signaling in angiogenesis.
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Affiliation(s)
- Gandhi T K Boopathy
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
| | - Wanjin Hong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
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30
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Rotoli D, Morales M, Maeso MDC, Ávila J, Pérez-Rodríguez ND, Mobasheri A, van Noorden CJF, Martín-Vasallo P. IQGAP1, AmotL2, and FKBP51 Scaffoldins in the Glioblastoma Microenvironment. J Histochem Cytochem 2019; 67:481-494. [PMID: 30794467 DOI: 10.1369/0022155419833334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Glioblastoma (GB) is the most frequently occurring and aggressive primary brain tumor. Glioma stem cells (GSCs) and astrocytoma cells are the predominant malignant cells occurring in GB besides a highly heterogeneous population of migrating, neovascularizing and infiltrating myeloid cells that forms a complex tumor microenvironment (TME). Cross talk between the TME cells is pivotal in the biology of this tumor and, consequently, adaptor proteins at critical junctions of signaling pathways may be crucial. Scaffold proteins (scaffolins or scaffoldins) integrate external and internal stimuli to regulate various signaling pathways, interacting simultaneously with multiple proteins involved. We investigated by double and triple immunofluorescence the localization of IQGAP1, AmotL2, and FKBP51, three closely related scaffoldins, in malignant cells and TME of human GB tumors. We found that IQGAP1 is preferentially expressed in astrocytoma cells, AmotL2 in GSCs, and FKBP51 in white blood cells in human GB tumors. As GSCs are specially the target for novel therapies, we will investigate in further studies whether AmotL2 inhibition is effective in the treatment of GB.
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Affiliation(s)
- Deborah Rotoli
- UD of Biochemistry and Molecular Biology.,Instituto de Tecnologías Biomédicas de Canarias.,Universidad de La Laguna, San Cristóbal de La Laguna, Spain.,Istituto per l'Endocrinologia e l'Oncologia Sperimentale Gaetano Salvatore, Naples, Italy.,Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz, Spain
| | - Manuel Morales
- Oncología Médica.,Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz, Spain.,Oncología Médica, Hospiten Rambla, Santa Cruz, Spain
| | - María-Del-C Maeso
- Servicio de Anatomía Patológica.,Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz, Spain
| | - Julio Ávila
- UD of Biochemistry and Molecular Biology.,Instituto de Tecnologías Biomédicas de Canarias.,Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | | | - Ali Mobasheri
- Department of Regenerative Medicine, State Research Institute Center for Innovative Medicine, Vilnius, Lithuania
| | - Cornelis J F van Noorden
- Department of Medical Biology, Cancer Center Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands.,Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.,Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Pablo Martín-Vasallo
- UD of Biochemistry and Molecular Biology.,Instituto de Tecnologías Biomédicas de Canarias.,Universidad de La Laguna, San Cristóbal de La Laguna, Spain
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31
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Angiomotin-p130 inhibits β-catenin stability by competing with Axin for binding to tankyrase in breast cancer. Cell Death Dis 2019; 10:179. [PMID: 30792381 PMCID: PMC6385204 DOI: 10.1038/s41419-019-1427-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/03/2019] [Accepted: 02/05/2019] [Indexed: 01/02/2023]
Abstract
Growing evidence indicates that Angiomotin (Amot)-p130 and Amot-p80 have different physiological functions. We hypothesized that Amot-p130 is a tumor suppressor gene in breast cancer, in contrast with the canonical oncogenicity of Amot-p80 or total Amot. To clarify the role of Amot-p130 in breast cancer, we performed real-time quantitative PCR, western blotting, flow cytometry, microarray, immunofluorescence, immunoprecipitation, and tumor sphere-formation assays in vitro, as well as tumorigenesis and limited-dilution analysis in vivo. In this study, we showed that Amot-p130 inhibited the proliferation, migration, and invasion of breast cancer cells. Interestingly, transcriptional profiles indicated that genes differentially expressed in response to Amot-p130 knockdown were mostly related to β-catenin signaling in MCF7 cells. More importantly, most of the downstream partners of β-catenin were associated with stemness. In a further validation, Amot-p130 inhibited the cancer stem cell potential of breast cancer cells both in vitro and in vivo. Mechanistically, Amot-p130 decreased β-catenin stability by competing with Axin for binding to tankyrase, leading to a further inhibition of the WNT pathway. In conclusions, Amot-p130 functions as a tumor suppressor gene in breast cancer, disrupting β-catenin stability by competing with Axin for binding to tankyrase. Amot-p130 was identified as a potential target for WNT pathway-targeted therapies in breast cancer.
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32
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Liegel RP, Finnerty E, Blizzard L, DiStasio A, Hufnagel RB, Saal HM, Sund KL, Prows CA, Stottmann RW. Using human sequencing to guide craniofacial research. Genesis 2018; 57:e23259. [DOI: 10.1002/dvg.23259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 10/23/2018] [Accepted: 10/23/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Ryan P. Liegel
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Erin Finnerty
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Lauren Blizzard
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Andrew DiStasio
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Robert B. Hufnagel
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Howard M. Saal
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
- Department of Pediatrics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Kristen L. Sund
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
- Department of Pediatrics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Cynthia A. Prows
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
- Division of Patient Services, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
- Department of Pediatrics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
| | - Rolf W. Stottmann
- Division of Human Genetics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
- Division of Developmental Biology, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
- Department of Pediatrics, Cincinnati Children's Hospital Medical CenterUniversity of Cincinnati College of Medicine Cincinnati Ohio 45229
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33
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Moon S, Yeon Park S, Woo Park H. Regulation of the Hippo pathway in cancer biology. Cell Mol Life Sci 2018; 75:2303-2319. [PMID: 29602952 PMCID: PMC11105795 DOI: 10.1007/s00018-018-2804-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 03/17/2018] [Accepted: 03/22/2018] [Indexed: 01/23/2023]
Abstract
The Hippo tumor suppressor pathway, which is well conserved from Drosophila to humans, has emerged as the master regulator of organ size, as well as major cellular properties, such as cell proliferation, survival, stemness, and tissue homeostasis. The biological significance and deregulation of the Hippo pathway in tumorigenesis have received a surge of interest in the past decade. In the current review, we present the major discoveries that made substantial contributions to our understanding of the Hippo pathway and discuss how Hippo pathway components contribute to cellular signaling, physiology, and their potential implications in anticancer therapeutics.
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Affiliation(s)
- Sungho Moon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - So Yeon Park
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Hyun Woo Park
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea.
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34
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Huang T, Zhou Y, Zhang J, Cheng ASL, Yu J, To KF, Kang W. The physiological role of Motin family and its dysregulation in tumorigenesis. J Transl Med 2018; 16:98. [PMID: 29650031 PMCID: PMC5898069 DOI: 10.1186/s12967-018-1466-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/28/2018] [Indexed: 11/30/2022] Open
Abstract
Members in Motin family, or Angiomotins (AMOTs), are adaptor proteins that localize in the membranous, cytoplasmic or nuclear fraction in a cell context-dependent manner. They control the bioprocesses such as migration, tight junction formation, cell polarity, and angiogenesis. Emerging evidences have demonstrated that AMOTs participate in cancer initiation and progression. Many of the previous studies have focused on the involvement of AMOTs in Hippo-YAP1 pathway. However, it has been controversial for years that AMOTs serve as either positive or negative growth regulators in different cancer types because of the various cellular origins. The molecular mechanisms of these opposite roles of AMOTs remain elusive. This review comprehensively summarized how AMOTs function physiologically and how their dysregulation promotes or inhibits tumorigenesis. Better understanding the functional roles of AMOTs in cancers may lead to an improvement of clinical interventions as well as development of novel therapeutic strategies for cancer patients.
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Affiliation(s)
- Tingting Huang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People's Republic of China
| | - Yuhang Zhou
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China
| | - Jinglin Zhang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China
| | - Alfred S L Cheng
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People's Republic of China.,School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Jun Yu
- Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China.,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People's Republic of China.,Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Ka Fai To
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China. .,Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China. .,Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China. .,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People's Republic of China.
| | - Wei Kang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Oncology in South China, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China. .,Institute of Digestive Disease, Partner State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China. .,Li Ka Shing Institute of Health Science, Sir Y.K. Pao Cancer Center, The Chinese University of Hong Kong, Shatin, N.T, Hong Kong, People's Republic of China. .,Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People's Republic of China.
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35
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Angiomotin regulates prostate cancer cell proliferation by signaling through the Hippo-YAP pathway. Oncotarget 2018; 8:10145-10160. [PMID: 28052036 PMCID: PMC5354648 DOI: 10.18632/oncotarget.14358] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/13/2016] [Indexed: 02/05/2023] Open
Abstract
Angiomotin (AMOT) is a family of proteins found to be a component of the apical junctional complex of vertebrate epithelial cells and is recently found to play important roles in neurofibromatosis type 2 (NF-2). Whether AMOT plays a role in prostate cancer (PCa) is unknown. AMOT is expressed as two isoforms, AMOTp80 and AMOTp130, which has a 409 aa N-terminal domain that is absent in AMOTp80. Both AMOTp80 and AMOTp130 are expressed in LNCaP and C4-2B4, but at a low to undetectable level in PC3, DU145, and BPH1 cells. Further study showed that AMOTp130 and AMOTp80 have distinct functions in PCa cells. We found that AMOTp80, but not AMOT p130, functioned as a tumor promoter by enhancing PCa cell proliferation. Mechanistic studies showed that AMOTp80 signaled through the Hippo pathway by promoting nuclear translocation of YAP, resulting in an increased expression of YAP target protein BMP4. Moreover, inhibition of BMP receptor activity by LDN-193189 abrogates AMOTp80-mediated cell proliferation. Together, this study reveals a novel mechanism whereby the AMOTp80-Merlin-MST1-LATS-YAP-BMP4 pathway leads to AMOTp80-induced tumor cell proliferation.
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36
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Hong SA, Son MW, Cho J, Jang SH, Lee HJ, Lee JH, Cho HD, Oh MH, Lee MS. Low angiomotin-p130 with concomitant high Yes-associated protein 1 expression is associated with adverse prognosis of advanced gastric cancer. APMIS 2017; 125:996-1006. [PMID: 28885730 DOI: 10.1111/apm.12750] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 07/14/2017] [Indexed: 11/26/2022]
Abstract
Angiomotin (AMOT) promotes angiogenesis and plays a role in neovascularization during tumorigenesis. Recently, the AMOT isoform, AMOT-p130, was shown to exert a regulatory effect on Yes-associated protein 1 (YAP1), a major downstream effector of the Hippo pathway. The specific roles of AMOT-p130 and YAP1 in advanced gastric cancer (AGC) are yet to be established. In this study, a total of 166 patients with AGC were enrolled, and AMOT-p130 and YAP1 levels were analyzed by immunohistochemistry using tissue microarrays. Low AMOT-p130 together with high YAP1 expression (n = 30, 18.1%) was associated with high T stage (p = 0.042), high TNM stage (p = 0.025), and venous invasion (p = 0.048). A Kaplan-Meier survival analysis with log-rank test revealed a significant correlation with decreased AMOT-p130 coupled with high nuclear YAP1 expression with shorter overall survival (p = 0.0045) and disease-free survival (p = 0.0028). Furthermore, multivariate analyses showed that the low AMOT-p130/high YAP1 expression profile was an independent prognostic factor for disease-free survival (p = 0.008, HR = 1.874, CI, 1.177-2.986) and overall survival (p = 0.012, HR = 1.903, CI, 1.152-3.143). Our findings collectively demonstrate that low AMOT-p130 combined with high YAP1 expression is correlated with an unfavorable AGC prognosis.
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Affiliation(s)
- Soon Auck Hong
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Myoung Won Son
- Department of General Surgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Junhun Cho
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Si-Hyong Jang
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Hyun Ju Lee
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Ji-Hye Lee
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Hyun Deuk Cho
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Mee-Hye Oh
- Department of Pathology, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Moon Soo Lee
- Department of General Surgery, Soonchunhyang University Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Korea
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37
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Hultin S, Subramani A, Hildebrand S, Zheng Y, Majumdar A, Holmgren L. AmotL2 integrates polarity and junctional cues to modulate cell shape. Sci Rep 2017; 7:7548. [PMID: 28790366 PMCID: PMC5548744 DOI: 10.1038/s41598-017-07968-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 07/03/2017] [Indexed: 12/17/2022] Open
Abstract
The assembly of individual epithelial or endothelial cells into a tight cellular sheet requires stringent control of cell packing and organization. These processes are dependent on the establishment and further integration of cellular junctions, the cytoskeleton and the formation of apical-basal polarity. However, little is known how these subcellular events are coordinated. The (Angiomotin) Amot protein family consists of scaffold proteins that interact with junctional cadherins, polarity proteins and the cytoskeleton. In this report, we have studied how these protein complexes integrate to control cellular shapes consistent with organ function. Using gene-inactivating studies in zebrafish and cell culture systems in vitro, we show that Par3 to be essential for localization of AmotL2 to cellular junctions to associate with VE/E-cadherin and subsequently the organization of radial actin filaments. Our data provide mechanistic insight in how critical processes such as aortic lumen expansion as well as epithelial packing into hexagonal shapes are controlled.
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Affiliation(s)
- Sara Hultin
- Department of Oncology and Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institutet, Solna, 171 76, Stockholm, Sweden
| | - Aravindh Subramani
- Department of Oncology and Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institutet, Solna, 171 76, Stockholm, Sweden
| | - Sebastian Hildebrand
- Department of Oncology and Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institutet, Solna, 171 76, Stockholm, Sweden.,Department of Clinical Sciences, Intervention and Technology (CLINTEC), Karolinska Institutet and Division of Obstetrics and Gynecology, Karolinska University Hospital, Huddinge, Sweden
| | - Yujuan Zheng
- Department of Oncology and Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institutet, Solna, 171 76, Stockholm, Sweden
| | - Arindam Majumdar
- Department of Oncology and Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institutet, Solna, 171 76, Stockholm, Sweden.,Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN, 46285, USA
| | - Lars Holmgren
- Department of Oncology and Pathology, Cancer Centrum Karolinska (CCK), Karolinska Institutet, Solna, 171 76, Stockholm, Sweden.
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38
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Matsumoto H. Molecular and cellular events during blastocyst implantation in the receptive uterus: clues from mouse models. J Reprod Dev 2017. [PMID: 28638003 PMCID: PMC5649093 DOI: 10.1262/jrd.2017-047] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The success of implantation is an interactive process between the blastocyst and the uterus. Synchronized development of embryos with uterine differentiation to a receptive state is necessary to complete pregnancy. The period of uterine receptivity for implantation is limited and referred to as the “implantation window”, which is regulated by ovarian steroid hormones. Implantation process is complicated due to the many signaling molecules in the hierarchical mechanisms with the embryo-uterine dialogue. The mouse is widely used in animal research, and is uniquely suited for reproductive studies, i.e., having a large litter size and brief estrous cycles. This review first describes why the mouse is the preferred model for implantation studies, focusing on uterine morphology and physiological traits, and then highlights the knowledge on uterine receptivity and the hormonal regulation of blastocyst implantation in mice. Our recent study revealed that selective proteolysis in the activated blastocyst is associated with the completion of blastocyst implantation after embryo transfer. Furthermore, in the context of blastocyst implantation in the mouse, this review discusses the window of uterine receptivity, hormonal regulation, uterine vascular permeability and angiogenesis, the delayed-implantation mouse model, morphogens, adhesion molecules, crosslinker proteins, extracellular matrix, and matricellular proteins. A better understanding of uterine and blastocyst biology during the peri-implantation period should facilitate further development of reproductive technology.
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Affiliation(s)
- Hiromichi Matsumoto
- Laboratory of Animal Breeding and Reproduction, Division of Animal Science, Department of Agrobiology and Bioresources, School of Agriculture, Utsunomiya University, Tochigi 321-8505, Japan.,Center for Bioscience Research and Education, Utsunomiya University, Tochigi 321-8505, Japan
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39
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Lv M, Shen Y, Yang J, Li S, Wang B, Chen Z, Li P, Liu P, Yang J. Angiomotin Family Members: Oncogenes or Tumor Suppressors? Int J Biol Sci 2017; 13:772-781. [PMID: 28656002 PMCID: PMC5485632 DOI: 10.7150/ijbs.19603] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/09/2017] [Indexed: 12/17/2022] Open
Abstract
Angiomotin (Amot) family contains three members: Amot (p80 and p130 isoforms), Amot-like protein 1 (Amotl1), and Amot-like protein 2 (Amotl2). Amot proteins play an important role in tube formation and migration of endothelial cells and the regulation of tight junctions, polarity, and epithelial-mesenchymal transition in epithelial cells. Moreover, these proteins regulate the proliferation and migration of cancer cells. In most cancers, Amot family members promote the proliferation and invasion of cancer cells, including breast cancer, osteosarcoma, colon cancer, prostate cancer, head and neck squamous cell carcinoma, cervical cancer, liver cancer, and renal cell cancer. However, in glioblastoma, ovarian cancer, and lung cancer, Amot inhibits the growth of cancer cells. In addition, there are controversies on the regulation of Yes-associated protein (YAP) by Amot. Amot promotes either the internalization of YAP into the nucleus or the retention of YAP in the cytoplasm of different cell types. Moreover, Amot regulates the AMPK, mTOR, Wnt, and MAPK signaling pathways. However, it is unclear whether Amot is an oncogene or a tumor suppressor gene in different cellular processes. This review focuses on the multifunctional roles of Amot in cancers.
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Affiliation(s)
- Meng Lv
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Yanwei Shen
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Jiao Yang
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Shuting Li
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Biyuan Wang
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Zheling Chen
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Pan Li
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
| | - Peijun Liu
- Center for Translational Medicine, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jin Yang
- Department of Oncology, the First Affiliated Hospital of Xian Jiaotong University, Xi'an, Shaanxi Province ,710061, P.R. China
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Moleirinho S, Hoxha S, Mandati V, Curtale G, Troutman S, Ehmer U, Kissil JL. Regulation of localization and function of the transcriptional co-activator YAP by angiomotin. eLife 2017; 6. [PMID: 28464980 PMCID: PMC5415356 DOI: 10.7554/elife.23966] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 04/06/2017] [Indexed: 02/06/2023] Open
Abstract
The Hippo-YAP pathway is a central regulator of cell contact inhibition, proliferation and death. There are conflicting reports regarding the role of Angiomotin (Amot) in regulating this pathway. While some studies suggest a YAP-inhibitory function other studies indicate Amot is required for YAP activity. Here, we describe an Amot-dependent complex comprised of Amot, YAP and Merlin. The phosphorylation of Amot at Serine 176 shifts localization of this complex to the plasma membrane, where it associates with the tight-junction proteins Pals1/PATJ and E-cadherin. Conversely, hypophosphorylated Amot shifts localization of the complex to the nucleus, where it facilitates the association of YAP and TEAD, induces transcriptional activation of YAP target genes and promotes YAP-dependent cell proliferation. We propose that phosphorylation of AmotS176 is a critical post-translational modification that suppresses YAP’s ability to promote cell proliferation and tumorigenesis by altering the subcellular localization of an essential YAP co-factor. DOI:http://dx.doi.org/10.7554/eLife.23966.001 Cells in animals and other multi-cellular organisms need to know when and where they should grow and divide. Individual cells communicate with their surrounding environment and each other via signaling pathways such as the Hippo-YAP pathway, which stimulates cells to grow and therefore influences the size of organs. When the Hippo part of the pathway is active it causes a protein known as YAP to move out of a compartment in the cell called the nucleus. Inside the nucleus, YAP helps to activate genes that promote cell growth. If the Hippo pathway can no longer respond to cues from the environment, YAP becomes over-active and can contribute to the development of various cancers. Therefore researchers are trying to better understand how it is regulated. Many signals both from inside and outside the cell influence YAP activity. For example, some signals block YAP from entering the nucleus, whereas others cause YAP to be broken down entirely. Several studies have recently identified a signal protein called angiomotin as a regulator of YAP. However, the studies provide conflicting reports as to whether angiomotin promotes or inhibits cell growth. Like many other proteins, angiomotin can be tagged with a small molecule called a phosphate group that can alter its activity. Moleirinho, Hoxha et al. studied human cells containing versions of angiomotin that mimic different forms of the protein with or without the phosphate. The experiments indicate that when a phosphate is attached at a particular position (known as serine 176), angiomotin predominantly interacts with YAP and another protein called Merlin at the cell surface. On the other hand, when angiomotin does not have a phosphate attached to it, all three proteins can move into the nucleus, where YAP is able to activate genes and promote cell growth. Overall, these findings indicate that adding a phosphate group to angiomotin can act as a switch to regulate where in the cell it and YAP are found and thus, whether YAP is active. Future experiments will investigate which enzymes add the phosphate group to serine 176, and when they are able to do so. DOI:http://dx.doi.org/10.7554/eLife.23966.002
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Affiliation(s)
- Susana Moleirinho
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, United States
| | - Sany Hoxha
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, United States
| | - Vinay Mandati
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, United States
| | - Graziella Curtale
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, United States
| | - Scott Troutman
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, United States
| | - Ursula Ehmer
- Department of Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Joseph L Kissil
- Department of Molecular Medicine, The Scripps Research Institute, Jupiter, United States
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Rotoli D, Morales M, Ávila J, Maeso MDC, García MDP, Mobasheri A, Martín-Vasallo P. Commitment of Scaffold Proteins in the Onco-Biology of Human Colorectal Cancer and Liver Metastases after Oxaliplatin-Based Chemotherapy. Int J Mol Sci 2017; 18:ijms18040891. [PMID: 28441737 PMCID: PMC5412470 DOI: 10.3390/ijms18040891] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/15/2017] [Accepted: 04/19/2017] [Indexed: 01/13/2023] Open
Abstract
Scaffold proteins play pivotal roles in the regulation of signaling pathways, integrating external and internal stimuli to various cellular outputs. We report the pattern of cellular and subcellular expression of scaffoldins angiomotin-like 2 (AmotL2), FK506 binding protein 5 (FKBP51) and IQ motif containing GTPase-activating protein 1 (IQGAP1) in colorectal cancer (CRC) and metastases in liver resected after oxaliplatin-based chemotherapy (CT). Positive immunostaining for the three scaffoldins was found in most cells in healthy colon, tumor, healthy liver and metastasized liver. The patterns of expression of AmotL2, FKBP51 and IQGAP1 show the greatest variability in immune system cells and neurons and glia cells and the least in blood vessel cells. The simultaneous subcellular localization in tumor cells and other cell types within the tumor suggest an involvement of these three scaffoldins in cancer biology, including a role in Epithelial Mesenchymal Transition. The display in differential localization and quantitative expression of AmotL2, FKBP51, and IQGAP1 could be used as biomarkers for more accurate tumor staging and as potential targets for anti-cancer therapeutics by blocking or slowing down their interconnecting functions. Tough further research needs to be done in order to improve these assessments.
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Affiliation(s)
- Deborah Rotoli
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, Av. Astrofísico Sánchez s/n., 38206 La Laguna, Spain.
- CNR-National Research Council, Institute of Endocrinology and Experimental Oncology (IEOS), Via Sergio Pansini 5, 80131 Naples, Italy.
| | - Manuel Morales
- Service of Medical Oncology, University Hospital Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain.
- Service of Medical Oncology, Hospiten® Hospitals, 38001 Santa Cruz de Tenerife, Spain.
| | - Julio Ávila
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, Av. Astrofísico Sánchez s/n., 38206 La Laguna, Spain.
| | - María Del Carmen Maeso
- Service of Pathology, University Hospital Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain.
| | | | - Ali Mobasheri
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, GU2 7XH Guildford, UK.
- Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), Faculty of Applied Medical Sciences, King AbdulAziz University, 21589 Jeddah, Saudi Arabia.
| | - Pablo Martín-Vasallo
- Laboratorio de Biología del Desarrollo, UD de Bioquímica y Biología Molecular and Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna, Av. Astrofísico Sánchez s/n., 38206 La Laguna, Spain.
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Couderc C, Boin A, Fuhrmann L, Vincent-Salomon A, Mandati V, Kieffer Y, Mechta-Grigoriou F, Del Maestro L, Chavrier P, Vallerand D, Brito I, Dubois T, De Koning L, Bouvard D, Louvard D, Gautreau A, Lallemand D. AMOTL1 Promotes Breast Cancer Progression and Is Antagonized by Merlin. Neoplasia 2016; 18:10-24. [PMID: 26806348 PMCID: PMC4735628 DOI: 10.1016/j.neo.2015.11.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 11/18/2015] [Accepted: 11/23/2015] [Indexed: 11/29/2022] Open
Abstract
The Hippo signaling network is a key regulator of cell fate. In the recent years, it was shown that its implication in cancer goes well beyond the sole role of YAP transcriptional activity and its regulation by the canonical MST/LATS kinase cascade. Here we show that the motin family member AMOTL1 is an important effector of Hippo signaling in breast cancer. AMOTL1 connects Hippo signaling to tumor cell aggressiveness. We show that both canonical and noncanonical Hippo signaling modulates AMOTL1 levels. The tumor suppressor Merlin triggers AMOTL1 proteasomal degradation mediated by the NEDD family of ubiquitin ligases through direct interaction. In parallel, YAP stimulates AMOTL1 expression. The loss of Merlin expression and the induction of Yap activity that are frequently observed in breast cancers thus result in elevated AMOTL1 levels. AMOTL1 expression is sufficient to trigger tumor cell migration and stimulates proliferation by activating c-Src. In a large cohort of human breast tumors, we show that AMOTL1 protein levels are upregulated during cancer progression and that, importantly, the expression of AMOTL1 in lymph node metastasis appears predictive of the risk of relapse. Hence we uncover an important mechanism by which Hippo signaling promotes breast cancer progression by modulating the expression of AMOTL1.
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Affiliation(s)
| | - Alizée Boin
- Institut Curie, Paris, France; CNRS UMR144, Paris, France
| | - Laetitia Fuhrmann
- Institut Curie, Paris, France; CNRS UMR144, Paris, France; Department of Biopathology, Paris, France
| | - Anne Vincent-Salomon
- Institut Curie, Paris, France; Department of Biopathology, Paris, France; INSERM U934, Paris, France
| | - Vinay Mandati
- Institut Curie, Paris, France; CNRS UMR144, Paris, France
| | - Yann Kieffer
- Institut Curie, Paris, France; Stress and Cancer Laboratory, INSERM U830, France
| | | | | | | | - David Vallerand
- Institut Curie, Paris, France; Département de Recherche Translationnelle, Laboratoire d'Investigation Préclinique, Paris, France
| | - Isabelle Brito
- Institut Curie, Paris, France; INSERM U900, Paris, France; Mines ParisTech, Fontainebleau, France
| | - Thierry Dubois
- Institut Curie, Paris, France; Département de Recherche Translationnelle, Breast Cancer Biology Group, France
| | | | - Daniel Bouvard
- INSERM U823, Institut Albert Bonniot, Grenoble, France; Université Joseph Fourier, Grenoble, France
| | - Daniel Louvard
- Institut Curie, Paris, France; CNRS UMR144, Paris, France
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Campbell CI, Samavarchi-Tehrani P, Barrios-Rodiles M, Datti A, Gingras AC, Wrana JL. The RNF146 and tankyrase pathway maintains the junctional Crumbs complex through regulation of angiomotin. J Cell Sci 2016; 129:3396-411. [PMID: 27521426 DOI: 10.1242/jcs.188417] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 07/22/2016] [Indexed: 12/11/2022] Open
Abstract
The Crumbs complex is an important determinant of epithelial apical-basal polarity that functions in regulation of tight junctions, resistance to epithelial-to-mesenchymal transitions and as a tumour suppressor. Although the functional role of the Crumbs complex is being elucidated, its regulation is poorly understood. Here, we show that suppression of RNF146, an E3 ubiquitin ligase that recognizes ADP-ribosylated substrates, and tankyrase, a poly(ADP-ribose) polymerase, disrupts the junctional Crumbs complex and disturbs the function of tight junctions. We show that RNF146 binds a number of polarity-associated proteins, in particular members of the angiomotin (AMOT) family. Accordingly, AMOT proteins are ADP-ribosylated by TNKS2, which drives ubiquitylation by RNF146 and subsequent degradation. Ablation of RNF146 or tankyrase, as well as overexpression of AMOT, led to the relocation of PALS1 (a Crumbs complex component) from the apical membrane to internal puncta, a phenotype that is rescued by AMOTL2 knockdown. We thus reveal a new function of RNF146 and tankyrase in stabilizing the Crumbs complex through downregulation of AMOT proteins at the apical membrane.
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Affiliation(s)
- Craig I Campbell
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5
| | - Payman Samavarchi-Tehrani
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5
| | - Miriam Barrios-Rodiles
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5
| | - Alessandro Datti
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5
| | - Anne-Claude Gingras
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5 Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada M5S 1A8
| | - Jeffrey L Wrana
- Center for Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada M5G 1X5 Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada M5S 1A8
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Angiomotin like-1 is a novel component of the N-cadherin complex affecting endothelial/pericyte interaction in normal and tumor angiogenesis. Sci Rep 2016; 6:30622. [PMID: 27464479 PMCID: PMC4964570 DOI: 10.1038/srep30622] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/06/2016] [Indexed: 01/07/2023] Open
Abstract
Transmission of mechanical force via cell junctions is an important component that molds cells into shapes consistent with proper organ function. Of particular interest are the cadherin transmembrane proteins, which play an essential role in connecting cell junctions to the intra-cellular cytoskeleton. Understanding how these biomechanical complexes orchestrate intrinsic and extrinsic forces is important for our understanding of the underlying mechanisms driving morphogenesis. We have previously identified the Amot protein family, which are scaffold proteins that integrate polarity, junctional, and cytoskeletal cues to modulate cellular shape in endothelial as well as epithelial cells. In this report, we show that AmotL1 is a novel partner of the N-cadherin protein complex. We studied the role of AmotL1 in normal retinal as well as tumor angiogenesis using inducible endothelial-specific knock-out mice. We show that AmotL1 is essential for normal establishment of vascular networks in the post-natal mouse retina as well as in a transgenic breast cancer model. The observed phenotypes were consistent with a non-autonomous pericyte defect. We show that AmotL1 forms a complex with N-cadherin present on both endothelial cells and pericytes. We propose that AmotL1 is an essential effector of the N-cadherin mediated endothelial/pericyte junctional complex.
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45
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Involvement of Tight Junction Plaque Proteins in Cancer. CURRENT PATHOBIOLOGY REPORTS 2016. [DOI: 10.1007/s40139-016-0108-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wagner SC, Ichim TE, Ma H, Szymanski J, Perez JA, Lopez J, Bogin V, Patel AN, Marincola FM, Kesari S. Cancer anti-angiogenesis vaccines: Is the tumor vasculature antigenically unique? J Transl Med 2015; 13:340. [PMID: 26510973 PMCID: PMC4625691 DOI: 10.1186/s12967-015-0688-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 10/03/2015] [Indexed: 12/19/2022] Open
Abstract
Angiogenesis is essential for the growth and metastasis of solid tumors. The tumor endothelium exists in a state of chronic activation and proliferation, fueled by the tumor milieu where angiogenic mediators are aberrantly over-expressed. Uncontrolled tumor growth, immune evasion, and therapeutic resistance are all driven by the dysregulated and constitutive angiogenesis occurring in the vasculature. Accordingly, great efforts have been dedicated toward identifying molecular signatures of this pathological angiogenesis in order to devise selective tumor endothelium targeting therapies while minimizing potential autoimmunity against physiologically normal endothelium. Vaccination with angiogenic antigens to generate cellular and/or humoral immunity against the tumor endothelium has proven to be a promising strategy for inhibiting or normalizing tumor angiogenesis and reducing cancer growth. Here we review tumor endothelium vaccines developed to date including active immunization strategies using specific tumor endothelium-associated antigens and whole endothelial cell-based vaccines designed to elicit immune responses against diverse target antigens. Among the novel therapeutic options, we describe a placenta-derived endothelial cell vaccine, ValloVax™, a polyvalent vaccine that is antigenically similar to proliferating tumor endothelium and is supported by pre-clinical studies to be safe and efficacious against several tumor types.
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Affiliation(s)
- Samuel C Wagner
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Thomas E Ichim
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Hong Ma
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Julia Szymanski
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | | | - Javier Lopez
- Pan Am Cancer Treatment Center, Tijuana, Mexico.
| | - Vladimir Bogin
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Amit N Patel
- Department of Surgery, University of Utah, Salt Lake City, UT, USA.
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Mruk DD, Cheng CY. The Mammalian Blood-Testis Barrier: Its Biology and Regulation. Endocr Rev 2015; 36:564-91. [PMID: 26357922 PMCID: PMC4591527 DOI: 10.1210/er.2014-1101] [Citation(s) in RCA: 400] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 09/03/2015] [Indexed: 12/31/2022]
Abstract
Spermatogenesis is the cellular process by which spermatogonia develop into mature spermatids within seminiferous tubules, the functional unit of the mammalian testis, under the structural and nutritional support of Sertoli cells and the precise regulation of endocrine factors. As germ cells develop, they traverse the seminiferous epithelium, a process that involves restructuring of Sertoli-germ cell junctions, as well as Sertoli-Sertoli cell junctions at the blood-testis barrier. The blood-testis barrier, one of the tightest tissue barriers in the mammalian body, divides the seminiferous epithelium into 2 compartments, basal and adluminal. The blood-testis barrier is different from most other tissue barriers in that it is not only comprised of tight junctions. Instead, tight junctions coexist and cofunction with ectoplasmic specializations, desmosomes, and gap junctions to create a unique microenvironment for the completion of meiosis and the subsequent development of spermatids into spermatozoa via spermiogenesis. Studies from the past decade or so have identified the key structural, scaffolding, and signaling proteins of the blood-testis barrier. More recent studies have defined the regulatory mechanisms that underlie blood-testis barrier function. We review here the biology and regulation of the mammalian blood-testis barrier and highlight research areas that should be expanded in future studies.
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Affiliation(s)
- Dolores D Mruk
- Center for Biomedical Research, Population Council, New York, New York 10065
| | - C Yan Cheng
- Center for Biomedical Research, Population Council, New York, New York 10065
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48
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Agarwala S, Duquesne S, Liu K, Boehm A, Grimm L, Link S, König S, Eimer S, Ronneberger O, Lecaudey V. Amotl2a interacts with the Hippo effector Yap1 and the Wnt/β-catenin effector Lef1 to control tissue size in zebrafish. eLife 2015; 4:e08201. [PMID: 26335201 PMCID: PMC4596637 DOI: 10.7554/elife.08201] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Accepted: 09/02/2015] [Indexed: 12/17/2022] Open
Abstract
During development, proliferation must be tightly controlled for organs to reach their appropriate size. While the Hippo signaling pathway plays a major role in organ growth control, how it senses and responds to increased cell density is still unclear. In this study, we use the zebrafish lateral line primordium (LLP), a group of migrating epithelial cells that form sensory organs, to understand how tissue growth is controlled during organ formation. Loss of the cell junction-associated Motin protein Amotl2a leads to overproliferation and bigger LLP, affecting the final pattern of sensory organs. Amotl2a function in the LLP is mediated together by the Hippo pathway effector Yap1 and the Wnt/β-catenin effector Lef1. Our results implicate for the first time the Hippo pathway in size regulation in the LL system. We further provide evidence that the Hippo/Motin interaction is essential to limit tissue size during development. DOI:http://dx.doi.org/10.7554/eLife.08201.001 How do organs and tissues know when to stop growing? A cell communication pathway known as Hippo signaling plays a central role as it can tell cells to stop dividing. It is activated when cells in developing tissues come into contact with each other and causes a protein called Yap1 to be modified, which prevents it from entering the cell nucleus to activate genes that are involved in cell division. In a zebrafish embryo, an organ called the lateral line forms from a cluster of cells that migrate along the embryo's length. At regular intervals, the cluster deposits small bunches of cells from its trailing end. The resulting loss of cells from the cluster is balanced by cell division at the front of the cluster, which is triggered by another signaling pathway called Wnt signaling. A protein of the ‘Motin’ family called Amotl2a is present in this migrating cluster. Motin proteins form junctions between cells and inhibit the activity of Yap1, but it is not known whether they are involved in regulating the size of organs. Here, Agarwala et al. used the lateral line as a model to study the control of organ size in zebrafish embryos. The experiments show that when Amotl2a is absent, the migrating cell cluster becomes larger, with the highest levels of cell division occurring at its trailing end. Yap1 and a protein involved in Wnt signaling called Lef1 are also present in the cluster and are required for it to be normal in size. In zebrafish that lack Amotl2a, the additional loss of Yap1 prevents this cluster from becoming too large. From these and other results, it appears that Amotl2a regulates the size of the lateral line cell cluster by restricting the ability of Yap1 and Lef1 to promote cell division. Agarwala et al.'s findings demonstrate a role for Amotl2a in controlling the size of organs. A future challenge is to understand the details of how it restricts the activities of Yap1 and Lef1. DOI:http://dx.doi.org/10.7554/eLife.08201.002
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Affiliation(s)
- Sobhika Agarwala
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Developmental Biology, Institute for Biology I, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Sandra Duquesne
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Developmental Biology, Institute for Biology I, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Kun Liu
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Image Analysis Lab, Institute for Computer Science, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Anton Boehm
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Image Analysis Lab, Institute for Computer Science, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Lin Grimm
- Developmental Biology, Institute for Biology I, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Sandra Link
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Developmental Biology, Institute for Biology I, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Sabine König
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Stefan Eimer
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,ZBSA Center for Biological Systems Analysis, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Olaf Ronneberger
- BIOSS Centre for Biological Signalling Studies, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany.,Image Analysis Lab, Institute for Computer Science, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
| | - Virginie Lecaudey
- Developmental Biology, Institute for Biology I, Faculty of Biology, Albert Ludwigs University of Freiburg, Freiburg im Breisgau, Germany
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Abstract
The heart is the first organ formed during mammalian development. A properly sized and functional heart is vital throughout the entire lifespan. Loss of cardiomyocytes because of injury or diseases leads to heart failure, which is a major cause of human morbidity and mortality. Unfortunately, regenerative potential of the adult heart is limited. The Hippo pathway is a recently identified signaling cascade that plays an evolutionarily conserved role in organ size control by inhibiting cell proliferation, promoting apoptosis, regulating fates of stem/progenitor cells, and in some circumstances, limiting cell size. Interestingly, research indicates a key role of this pathway in regulation of cardiomyocyte proliferation and heart size. Inactivation of the Hippo pathway or activation of its downstream effector, the Yes-associated protein transcription coactivator, improves cardiac regeneration. Several known upstream signals of the Hippo pathway such as mechanical stress, G-protein-coupled receptor signaling, and oxidative stress are known to play critical roles in cardiac physiology. In addition, Yes-associated protein has been shown to regulate cardiomyocyte fate through multiple transcriptional mechanisms. In this review, we summarize and discuss current findings on the roles and mechanisms of the Hippo pathway in heart development, injury, and regeneration.
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Affiliation(s)
- Qi Zhou
- From the Life Sciences Institute, Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, Zhejiang, China (Q.Z., B.Z.); Institute of Aging Research, Hangzhou Normal University, Hangzhou, Zhejiang, China (L.L.); and Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla (K.-L.G.)
| | - Li Li
- From the Life Sciences Institute, Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, Zhejiang, China (Q.Z., B.Z.); Institute of Aging Research, Hangzhou Normal University, Hangzhou, Zhejiang, China (L.L.); and Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla (K.-L.G.)
| | - Bin Zhao
- From the Life Sciences Institute, Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, Zhejiang, China (Q.Z., B.Z.); Institute of Aging Research, Hangzhou Normal University, Hangzhou, Zhejiang, China (L.L.); and Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla (K.-L.G.).
| | - Kun-Liang Guan
- From the Life Sciences Institute, Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou, Zhejiang, China (Q.Z., B.Z.); Institute of Aging Research, Hangzhou Normal University, Hangzhou, Zhejiang, China (L.L.); and Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla (K.-L.G.).
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50
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Cox CM, Mandell EK, Stewart L, Lu R, Johnson DL, McCarter SD, Tavares A, Runyan R, Ghosh S, Wilson JM. Endosomal regulation of contact inhibition through the AMOT:YAP pathway. Mol Biol Cell 2015; 26:2673-84. [PMID: 25995376 PMCID: PMC4501364 DOI: 10.1091/mbc.e15-04-0224] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 05/11/2015] [Indexed: 11/15/2022] Open
Abstract
It was shown previously that endotubin, an integral membrane protein of endosomes, regulates the trafficking of tight junction proteins between endosomes and the tight junctions. Here it is shown that endotubin regulates YAP localization on endosomes through its interaction with AMOT and thus may play a role in contact inhibition. Contact-mediated inhibition of cell proliferation is an essential part of organ growth control; the transcription coactivator Yes-associated protein (YAP) plays a pivotal role in this process. In addition to phosphorylation-dependent regulation of YAP, the integral membrane protein angiomotin (AMOT) and AMOT family members control YAP through direct binding. Here we report that regulation of YAP activity occurs at the endosomal membrane through a dynamic interaction of AMOT with an endosomal integral membrane protein, endotubin (EDTB). EDTB interacts with both AMOT and occludin and preferentially associates with occludin in confluent cells but with AMOT family members in subconfluent cells. EDTB competes with YAP for binding to AMOT proteins in subconfluent cells. Overexpression of the cytoplasmic domain or full-length EDTB induces translocation of YAP to the nucleus, an overgrowth phenotype, and growth in soft agar. This increase in proliferation is dependent upon YAP activity and is complemented by overexpression of p130-AMOT. Furthermore, overexpression of EDTB inhibits the AMOT:YAP interaction. EDTB and AMOT have a greater association in subconfluent cells compared with confluent cells, and this association is regulated at the endosomal membrane. These data provide a link between the trafficking of tight junction proteins through endosomes and contact-inhibition-regulated cell growth.
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Affiliation(s)
- Christopher M Cox
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
| | - Edward K Mandell
- Department of Neurology, Yale University School of Medicine, New Haven, CT 06511
| | - Lorraine Stewart
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
| | - Ruifeng Lu
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
| | - Debra L Johnson
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
| | - Sarah D McCarter
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
| | - Andre Tavares
- Department of Craniofacial Biology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Ray Runyan
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
| | - Sourav Ghosh
- Department of Neurology, Yale University School of Medicine, New Haven, CT 06511
| | - Jean M Wilson
- Department of Cellular and Molecular Medicine, University of Arizona, Tucson, AZ 85724
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