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Li MY, Yang XL, Chung CC, Lai YJ, Tsai JC, Kuo YL, Yu JY, Wang TW. TRIP6 promotes neural stem cell maintenance through YAP-mediated Sonic Hedgehog activation. FASEB J 2024; 38:e23501. [PMID: 38411462 DOI: 10.1096/fj.202301805rrr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 01/24/2024] [Accepted: 02/06/2024] [Indexed: 02/28/2024]
Abstract
In the adult mammalian brain, new neurons are continuously generated from neural stem cells (NSCs) in the subventricular zone (SVZ)-olfactory bulb (OB) pathway. YAP, a transcriptional co-activator of the Hippo pathway, promotes cell proliferation and inhibits differentiation in embryonic neural progenitors. However, the role of YAP in postnatal NSCs remains unclear. Here, we showed that YAP was present in NSCs of the postnatal mouse SVZ. Forced expression of Yap promoted NSC maintenance and inhibited differentiation, whereas depletion of Yap by RNA interference or conditional knockout led to the decline of NSC maintenance, premature neuronal differentiation, and collapse of neurogenesis. For the molecular mechanism, thyroid hormone receptor-interacting protein 6 (TRIP6) recruited protein phosphatase PP1A to dephosphorylate LATS1/2, therefore inducing YAP nuclear localization and activation. Moreover, TRIP6 promoted NSC maintenance, cell proliferation, and inhibited differentiation through YAP. In addition, YAP regulated the expression of the Sonic Hedgehog (SHH) pathway effector Gli2 and Gli1/2 mediated the effect of YAP on NSC maintenance. Together, our findings demonstrate a novel TRIP6-YAP-SHH axis, which is critical for regulating postnatal neurogenesis in the SVZ-OB pathway.
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Affiliation(s)
- Ming-Yang Li
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Xiu-Li Yang
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Chia-Chi Chung
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Yun-Ju Lai
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Jui-Cheng Tsai
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Ya-Lin Kuo
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Jenn-Yah Yu
- Department of Life Sciences, Institute of Genome Sciences, National Yang Ming Chiao Tung University, Taipei, Taiwan
- Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tsu-Wei Wang
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
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2
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Sun Y, Jin X, Meng J, Guo F, Chen T, Zhao X, Wu H, Ren D. MST2 methylation by PRMT5 inhibits Hippo signaling and promotes pancreatic cancer progression. EMBO J 2023; 42:e114558. [PMID: 37905571 PMCID: PMC10690468 DOI: 10.15252/embj.2023114558] [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: 05/19/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 11/02/2023] Open
Abstract
The Hippo signaling axis is a tumor suppressor pathway that is activated by various extra-pathway factors to regulate cell differentiation and organ development. Recent studies have reported that autophosphorylation of the core kinase cassette stimulates activation of the Hippo signaling cascade. Here, we demonstrate that protein arginine methyltransferase 5 (PRMT5) contributes to inactivation of the Hippo signaling pathway in pancreatic cancer. We show that the Hippo pathway initiator serine/threonine kinase 3 (STK3, also known as MST2) of Hippo signaling pathway can be symmetrically di-methylated by PRMT5 at arginine-461 (R461) and arginine-467 (R467) in its SARAH domain. Methylation suppresses MST2 autophosphorylation and kinase activity by blocking its homodimerization, thereby inactivating Hippo signaling pathway in pancreatic cancer. Moreover, we also show that the specific PRMT5 inhibitor GSK3326595 re-activates the dysregulated Hippo signaling pathway and inhibits the growth of human pancreatic cancer xenografts in immunodeficient mice, thus suggesting potential clinical application of PRMT5 inhibitors in pancreatic cancer.
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Affiliation(s)
- Yan Sun
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xin Jin
- Department of Urology, The Second Xiangya HospitalCentral South UniversityChangshaChina
- Uro‐Oncology Institute of Central South UniversityChangshaChina
| | - Junpeng Meng
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Department of General SurgeryThe Second Hospital of Shanxi Medical UniversityTaiyuanChina
| | - Feng Guo
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Taoyu Chen
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Xiaoyan Zhao
- Department of Hematology, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Heshui Wu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Dianyun Ren
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
- Sino‐German Laboratory of Personalized Medicine for Pancreatic Cancer, Union Hospital, Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
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3
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Jagadeeshan S, Prasad M, Badarni M, Lulu TB, Liju VB, Mathukkada S, Saunders C, Shnerb AB, Zorea J, Yegodayev KM, Wainer M, Vtorov L, Allon I, Cohen O, Gausdal G, Friedmann-Morvinski D, Cheong SC, Ho AL, Rosenberg AJ, Kessler L, Burrows F, Kong D, Grandis JR, Gutkind JS, Elkabets M. Mutated HRAS Activates YAP1-AXL Signaling to Drive Metastasis of Head and Neck Cancer. Cancer Res 2023; 83:1031-1047. [PMID: 36753744 PMCID: PMC10073343 DOI: 10.1158/0008-5472.can-22-2586] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 12/14/2022] [Accepted: 02/06/2023] [Indexed: 02/10/2023]
Abstract
The survival rate for patients with head and neck cancer (HNC) diagnosed with cervical lymph node (cLN) or distant metastasis is low. Genomic alterations in the HRAS oncogene are associated with advanced tumor stage and metastasis in HNC. Elucidation of the molecular mechanisms by which mutated HRAS (HRASmut) facilitates HNC metastasis could lead to improved treatment options for patients. Here, we examined metastasis driven by mutant HRAS in vitro and in vivo using HRASmut human HNC cell lines, patient-derived xenografts, and a novel HRASmut syngeneic model. Genetic and pharmacological manipulations indicated that HRASmut was sufficient to drive invasion in vitro and metastasis in vivo. Targeted proteomic analysis showed that HRASmut promoted AXL expression via suppressing the Hippo pathway and stabilizing YAP1 activity. Pharmacological blockade of HRAS signaling with the farnesyltransferase inhibitor tipifarnib activated the Hippo pathway and reduced the nuclear export of YAP1, thus suppressing YAP1-mediated AXL expression and metastasis. AXL was required for HRASmut cells to migrate and invade in vitro and to form regional cLN and lung metastases in vivo. In addition, AXL-depleted HRASmut tumors displayed reduced lymphatic and vascular angiogenesis in the primary tumor. Tipifarnib treatment also regulated AXL expression and attenuated VEGFA and VEGFC expression, thus regulating tumor-induced vascular formation and metastasis. Our results indicate that YAP1 and AXL are crucial factors for HRASmut-induced metastasis and that tipifarnib treatment can limit the metastasis of HNC tumors with HRAS mutations by enhancing YAP1 cytoplasmic sequestration and downregulating AXL expression. SIGNIFICANCE Mutant HRAS drives metastasis of head and neck cancer by switching off the Hippo pathway to activate the YAP1-AXL axis and to stimulate lymphovascular angiogenesis.
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Affiliation(s)
- Sankar Jagadeeshan
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Manu Prasad
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Mai Badarni
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Talal Ben Lulu
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Vijayasteltar Belsamma Liju
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sooraj Mathukkada
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Claire Saunders
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Avital Beeri Shnerb
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Jonathan Zorea
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ksenia M Yegodayev
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Monica Wainer
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Liza Vtorov
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Irit Allon
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Institute of Pathology, Barzilai University Medical Center, Ashqelon, Israel
| | - Ofir Cohen
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | | | - Dinorah Friedmann-Morvinski
- School of Neurobiology, Biochemistry and Biophysics, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
- Sagol School of Neuroscience, Department of Biochemistry and Molecular Biology, Tel Aviv University, Tel Aviv, Israel
| | - Sok Ching Cheong
- Translational Cancer Biology, Cancer Research Malaysia, No. 1, Jalan SS12/1A, Subang Jaya, Selangor, Malaysia
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Alan L Ho
- Memorial Sloan Kettering Cancer Center, New York, NY and Department of Medicine, Weill Cornell Medical College, New York City, NY, USA
| | - Ari J Rosenberg
- Department of Medicine, Section of Hematology and Oncology, University of Chicago, Chicago, IL, USA
| | | | | | - Dexin Kong
- School of Pharmaceutical Sciences, Tianjin Medical University, Tianjin, China
| | - Jennifer R Grandis
- Department of Otolaryngology - Head and Neck Surgery, University of California San Francisco, San Francisco, CA, USA
| | - J Silvio Gutkind
- Department of Pharmacology and Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Moshe Elkabets
- The Shraga Segal Department of Microbiology, Immunology, and Genetics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
- Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
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4
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Nishitani K, Hayakawa K, Tanaka S. Epidermal growth factor represses differentiation of mouse trophoblast stem cells into spongiotrophoblast cells via epidermal growth factor receptor. Biochem Biophys Res Commun 2023; 657:100-107. [PMID: 37001284 DOI: 10.1016/j.bbrc.2023.03.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/19/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
The mouse placenta is composed of three different trophoblast layers that are occupied by particular trophoblast subtypes to maintain placental function and pregnancy. Accurate control of trophoblast differentiation is required for proper placental function; however, the molecular mechanisms underlying cell fate decisions in trophoblast stem cells remain poorly understood. Epidermal growth factor (EGF) signaling is involved in multiple biological processes including cell survival, proliferation, and differentiation. The effect of EGF on trophoblast function has been reported in various species; however, the role of EGF signaling in mouse trophoblast specification remains unclear. In this study, we aimed to elucidate the role of EGF signaling in mouse trophoblast differentiation using mouse trophoblast stem cells (mTSCs) in an in vitro culture system. EGF stimulation at the early stage of differentiation repressed mTSC differentiation into spongiotrophoblast cells (SpT). Gene deletion and inhibitor experiments showed that the effect of EGF exposure went through epidermal growth factor receptor (Egfr) activity in mTSCs. EGF stimuli induced acute downstream activation of MAPK/ERK, PI3K/AKT, and JNK pathways, and inhibition of the MAPK/ERK pathway, but not others, alleviated EGF-mediated repression of SpT differentiation. Moreover, expression of Mash2, a master regulator of SpT differentiation, was repressed by EGF stimulation, and MAPK/ERK inhibition counteracted this repression. The Mash2 overexpression recovered SpT marker expression, indicating that the decrease in Mash2 expression was due to abnormal SpT differentiation in EGF-treated mTSCs. Our findings suggest that the EGF-Egfr-MAPK/ERK-Mash2 axis is a core regulatory mechanism for the EGF-mediated repression of SpT differentiation.
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Affiliation(s)
- Kenta Nishitani
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences/Veterinary Medical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan; Ruth L. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research, Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Koji Hayakawa
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences/Veterinary Medical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan; Department of Toxicology, Faculty of Veterinary Medicine, Okayama University of Science, Imabari-shi, Ehime, Japan.
| | - Satoshi Tanaka
- Laboratory of Cellular Biochemistry, Department of Animal Resource Sciences/Veterinary Medical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
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5
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Chen S, Sun P, Li Y, Shen W, Wang C, Zhao P, Cui H, Xue JY, Du GQ. Melatonin activates the Mst1-Nrf2 signaling to alleviate cardiac hypertrophy in pulmonary arterial hypertension. Eur J Pharmacol 2022; 933:175262. [PMID: 36100129 DOI: 10.1016/j.ejphar.2022.175262] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/28/2022]
Abstract
Among pulmonary arterial hypertension (PAH) patients, right ventricular (RV) functioning has been considered a major determining factor for cardiac capacity and survival. However, despite the recognition of the clinical importance for preserving RV functioning, no effective treatments are currently available for RV failure. This study aims to suggest one such possible treatment, through investigating the cardio-protective capabilities of the anti-oxidant, melatonin (Mel), for treating adverse RV remodeling in PAH, along with its underlying mechanisms. Arginine vasopressin induced neonatal rat cardiomyocyte hypertrophy in vitro; in vivo, PAH was induced in rats through intraperitoneal monocrotaline (MCT) injections, and Mel was administered intraperitoneally 24 h prior to MCT. Mel reduced rat cardiomyocyte hypertrophy and mitochondrial oxidative stress in vitro by activating the Mst1-Nrf2 pathway, which were all reversed upon siRNA knockdown of Mst1. Likewise, in vivo, Mel pre-treatment significantly ameliorated MCT-induced deterioration in cardiac function, RV hypertrophy, fibrosis and dilation. These beneficial effects were also associated with Mst1-Nrf2 pathway up regulation and its associated reduction in oxidative stress, as evidenced by the decrease in RV malondialdehyde content. Notably, results from Mel treatment were similar, or even superior, to those obtained from N-acetyl cysteine (NAC), which has already been-confirmed as an anti-oxidative treatment for PAH. By contrast, co-treatment with the Mst1 inhibitor XMU-MP-1 reversed all of those Mel-associated beneficial effects. Our findings thus identified Mel as a potent cardio-protective agent against the onset of maladaptive RV remodeling, through enhancement of the anti-oxidative response via Mst1-Nrf2 pathway activation.
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Affiliation(s)
- Shuang Chen
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Ping Sun
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - You Li
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - Wenqian Shen
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chao Wang
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Peng Zhao
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hao Cui
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jing-Yi Xue
- Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Guo-Qing Du
- Department of Ultrasound, The Second Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Ultrasound, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
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6
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Chen S, Li Y, Fu S, Li Y, Wang C, Sun P, Li H, Tian J, Du GQ. Melatonin alleviates arginine vasopressin-induced cardiomyocyte apoptosis via increasing Mst1-Nrf2 pathway activity to reduce oxidative stress. Biochem Pharmacol 2022; 206:115265. [DOI: 10.1016/j.bcp.2022.115265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 09/08/2022] [Accepted: 09/23/2022] [Indexed: 11/27/2022]
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7
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Regulation of MST complexes and activity via SARAH domain modifications. Biochem Soc Trans 2021; 49:675-683. [PMID: 33860801 DOI: 10.1042/bst20200559] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 11/17/2022]
Abstract
Three elements of the Hippo tumor suppressor pathway - MST1/2, SAV1, and RASSF1-6 - share in common a C-terminal interaction motif termed the SARAH domain. Proteins containing this domain are capable of self-association as homodimers and also of trans-association with other SARAH domain containing proteins as well as selected additional proteins that lack this domain. Recently, the association of MST1/2 with itself or with other proteins has been shown to be regulated by phosphorylation at sites near or within the SARAH domain. In this review, we focus on recent findings regarding the regulation of such MST1/2 interactions, with an emphasis on the effects of these events on Hippo pathway activity.
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8
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Ooki T, Hatakeyama M. Protocol for visualizing conditional interaction between transmembrane and cytoplasmic proteins. STAR Protoc 2021; 2:100430. [PMID: 33870231 PMCID: PMC8044726 DOI: 10.1016/j.xpro.2021.100430] [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] [Indexed: 12/05/2022] Open
Abstract
This protocol visualizes dynamic interaction between a transmembrane protein and an intracellular protein induced by clusterization/oligomerization of the transmembrane protein. Association-dissociation of the intracellular region of the transmembrane protein with cytoplasmic protein(s) is detected by proximity ligation assay. Since a transmembrane protein often resists extraction, biochemical analysis of its dynamic interaction with cytoplasmic effectors is cumbersome. This protocol quantitatively visualizes protein-protein interaction occurring in the membrane periphery, providing a powerful tool to elucidate signal transduction across the membrane. For complete details on the use and execution of this protocol, please refer to Ooki et al. (2019). Antibody-mediated cross-linking induces functional clustering of membrane protein PLA can visualize extracellular-signal-dependent intracellular protein interaction This protocol is applicable for the analysis of dynamic protein network formation
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Affiliation(s)
- Takuya Ooki
- Division of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
| | - Masanori Hatakeyama
- Division of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo 113-0033, Japan
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9
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Tran T, Mitra J, Ha T, Kavran JM. Increasing kinase domain proximity promotes MST2 autophosphorylation during Hippo signaling. J Biol Chem 2020; 295:16166-16179. [PMID: 32994222 DOI: 10.1074/jbc.ra120.015723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/22/2020] [Indexed: 01/20/2023] Open
Abstract
The Hippo pathway plays an important role in developmental biology, mediating organ size by controlling cell proliferation through the activity of a core kinase cassette. Multiple upstream events activate the pathway, but how each controls this core kinase cassette is not fully understood. Activation of the core kinase cassette begins with phosphorylation of the kinase MST1/2 (also known as STK3/4). Here, using a combination of in vitro biochemistry and cell-based assays, including chemically induced dimerization and single-molecule pulldown, we revealed that increasing the proximity of adjacent kinase domains, rather than formation of a specific protein assembly, is sufficient to trigger autophosphorylation. We validate this mechanism in cells and demonstrate that multiple events associated with the active pathway, including SARAH domain-mediated homodimerization, membrane recruitment, and complex formation with the effector protein SAV1, each increase the kinase domain proximity and autophosphorylation of MST2. Together, our results reveal that multiple and distinct upstream signals each utilize the same common molecular mechanism to stimulate MST2 autophosphorylation. This mechanism is likely conserved among MST2 homologs. Our work also highlights potential differences in Hippo signal propagation between each activating event owing to differences in the dynamics and regulation of each protein ensemble that triggers MST2 autophosphorylation and possible redundancy in activation.
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Affiliation(s)
- Thao Tran
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jaba Mitra
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA; Department of Biophysics and Biophysical Chemistry, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Taekjip Ha
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA; Department of Biophysics and Biophysical Chemistry, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA; T. C. Jenkins Department of Biophysics, Krieger School of Arts and Sciences, Johns Hopkins University, Baltimore, Maryland, USA; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA; Howard Hughes Medical Institute, Baltimore, Maryland, USA
| | - Jennifer M Kavran
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA; Department of Biophysics and Biophysical Chemistry, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA; Department of Oncology, School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA.
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10
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Franklin JM, Ghosh RP, Shi Q, Reddick MP, Liphardt JT. Concerted localization-resets precede YAP-dependent transcription. Nat Commun 2020; 11:4581. [PMID: 32917893 PMCID: PMC7486942 DOI: 10.1038/s41467-020-18368-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
Yes-associated protein 1 (YAP) is a transcriptional regulator with critical roles in mechanotransduction, organ size control, and regeneration. Here, using advanced tools for real-time visualization of native YAP and target gene transcription dynamics, we show that a cycle of fast exodus of nuclear YAP to the cytoplasm followed by fast reentry to the nucleus ("localization-resets") activates YAP target genes. These "resets" are induced by calcium signaling, modulation of actomyosin contractility, or mitosis. Using nascent-transcription reporter knock-ins of YAP target genes, we show a strict association between these resets and downstream transcription. Oncogenically-transformed cell lines lack localization-resets and instead show dramatically elevated rates of nucleocytoplasmic shuttling of YAP, suggesting an escape from compartmentalization-based control. The single-cell localization and transcription traces suggest that YAP activity is not a simple linear function of nuclear enrichment and point to a model of transcriptional activation based on nucleocytoplasmic exchange properties of YAP.
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Affiliation(s)
- J Matthew Franklin
- Bioengineering, Stanford University, Stanford, CA, 94305, USA
- BioX Institute, Stanford University, Stanford, CA, 94305, USA
- ChEM-H, Stanford University, Stanford, CA, 94305, USA
- Cell Biology Division, Stanford Cancer Institute, Stanford, CA, 94305, USA
- Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Rajarshi P Ghosh
- Bioengineering, Stanford University, Stanford, CA, 94305, USA.
- BioX Institute, Stanford University, Stanford, CA, 94305, USA.
- ChEM-H, Stanford University, Stanford, CA, 94305, USA.
- Cell Biology Division, Stanford Cancer Institute, Stanford, CA, 94305, USA.
| | - Quanming Shi
- Bioengineering, Stanford University, Stanford, CA, 94305, USA
- BioX Institute, Stanford University, Stanford, CA, 94305, USA
- ChEM-H, Stanford University, Stanford, CA, 94305, USA
- Cell Biology Division, Stanford Cancer Institute, Stanford, CA, 94305, USA
| | - Michael P Reddick
- Bioengineering, Stanford University, Stanford, CA, 94305, USA
- BioX Institute, Stanford University, Stanford, CA, 94305, USA
- ChEM-H, Stanford University, Stanford, CA, 94305, USA
- Cell Biology Division, Stanford Cancer Institute, Stanford, CA, 94305, USA
- Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Jan T Liphardt
- Bioengineering, Stanford University, Stanford, CA, 94305, USA.
- BioX Institute, Stanford University, Stanford, CA, 94305, USA.
- ChEM-H, Stanford University, Stanford, CA, 94305, USA.
- Cell Biology Division, Stanford Cancer Institute, Stanford, CA, 94305, USA.
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11
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Raynor JL, Liu C, Dhungana Y, Guy C, Chapman NM, Shi H, Neale G, Sesaki H, Chi H. Hippo/Mst signaling coordinates cellular quiescence with terminal maturation in iNKT cell development and fate decisions. J Exp Med 2020; 217:e20191157. [PMID: 32289155 PMCID: PMC7971129 DOI: 10.1084/jem.20191157] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 02/02/2020] [Accepted: 03/13/2020] [Indexed: 12/18/2022] Open
Abstract
Invariant natural killer T (iNKT) cells acquire effector functions during development by mechanisms that remain poorly understood. Here, we show that the Hippo kinases Mst1 and Mst2 act as molecular rheostats for the terminal maturation and effector differentiation programs of iNKT cells. Loss of Mst1 alone or together with Mst2 impedes iNKT cell development, associated with defective IL-15-dependent cell survival. Mechanistically, Mst1 enforces iNKT cellular and transcriptional quiescence associated with maturation and commitment to iNKT1 cells by suppressing proliferation and Opa1-related mitochondrial metabolism that are dynamically regulated during iNKT cell development. Furthermore, Mst1 shapes the reciprocal fate decisions between iNKT1 and iNKT17 effector cells, which respectively depend upon mitochondrial dynamics and ICOS-mTORC2 signaling. Collectively, these findings establish Mst1 as a crucial regulator of mitochondrial homeostasis and quiescence in iNKT cell development and effector lineage differentiation and highlight that establishment of quiescence programs underlies iNKT cell development and effector maturation.
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Affiliation(s)
- Jana L. Raynor
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Chaohong Liu
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Yogesh Dhungana
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Cliff Guy
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Nicole M. Chapman
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Hao Shi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Geoffrey Neale
- Hartwell Center for Bioinformatics and Biotechnology, St. Jude Children’s Research Hospital, Memphis, TN
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Hongbo Chi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN
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12
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Ooki T, Hatakeyama M. Hyaluronan Degradation Promotes Cancer via Hippo-YAP Signaling: An Intervention Point for Cancer Therapy. Bioessays 2020; 42:e2000005. [PMID: 32449813 DOI: 10.1002/bies.202000005] [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: 01/15/2020] [Revised: 03/16/2020] [Indexed: 12/14/2022]
Abstract
High-molecular-weight hyaluronan acts as a ligand of the tumor-suppressive Hippo signal, whereas degradation of hyaluronan from a high-molecular-weight form to a low-molecular-weight forms by hyaluronidase 2 inhibits Hippo signal activation and thereby activates the pro-oncogenic transcriptional coactivator yes-associated protein (YAP), which creates a cancer-predisposing microenvironment and drives neoplastic transformation of cells through both cell-autonomous and non-cell-autonomous mechanisms. In fact, accumulation of low-molecular-weight hyaluronan in tissue stroma is observed in many types of cancers. Since inhibition of YAP activity suppresses tumor growth in vivo, pharmacological intervention of the Hippo-YAP signal is an attractive approach for future drug development. In this review, pharmacological intervention of excessive hyaluronan degradation as a novel approach for inhibition of the Hippo-YAP signal is also discussed. Development of hyaluronidase inhibitors may provide novel therapeutic strategies for human malignant tumors.
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Affiliation(s)
- Takuya Ooki
- Division of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo, 113-0033, Japan
| | - Masanori Hatakeyama
- Division of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo, 113-0033, Japan
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13
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High-Molecular-Weight Hyaluronan Is a Hippo Pathway Ligand Directing Cell Density-Dependent Growth Inhibition via PAR1b. Dev Cell 2019; 49:590-604.e9. [DOI: 10.1016/j.devcel.2019.04.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 01/11/2019] [Accepted: 04/13/2019] [Indexed: 02/06/2023]
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14
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Macrophage achieves self-protection against oxidative stress-induced ageing through the Mst-Nrf2 axis. Nat Commun 2019; 10:755. [PMID: 30765703 PMCID: PMC6376064 DOI: 10.1038/s41467-019-08680-6] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 01/22/2019] [Indexed: 12/24/2022] Open
Abstract
Reactive oxygen species (ROS) production in phagocytes is a major defense mechanism against pathogens. However, the cellular self-protective mechanism against such potential damage from oxidative stress remains unclear. Here we show that the kinases Mst1 and Mst2 (Mst1/2) sense ROS and maintain cellular redox balance by modulating the stability of antioxidant transcription factor Nrf2. Site-specific ROS release recruits Mst1/2 from the cytosol to the phagosomal or mitochondrial membrane, with ROS subsequently activating Mst1/2 to phosphorylate kelch like ECH associated protein 1 (Keap1) and prevent Keap1 polymerization, thereby blocking Nrf2 ubiquitination and degradation to protect cells against oxidative damage. Treatment with the antioxidant N-acetylcysteine disrupts ROS-induced interaction of Mst1/2 with phagosomes or mitochondria, and thereby diminishes the Mst-Nrf2 signal. Consistently, loss of Mst1/2 results in increased oxidative injury, phagocyte ageing and death. Thus, our results identify the Mst-Nrf2 axis as an important ROS-sensing and antioxidant mechanism during an antimicrobial response. Immune cells produce reactive oxygen species (ROS) to eliminate pathogens, but cell-spontaneous death and ageing may also be induced. Here the authors show that, upon sensing ROS, Mst1/2 kinases modulate the activity of Nrf2 transcription factor and downstream genetic programs to protect mouse macrophages from death and ageing.
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15
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Karchugina S, Chernoff J. Detection of Heterodimerization of Protein Isoforms Using an in Situ Proximity Ligation Assay. J Vis Exp 2018. [PMID: 30394375 DOI: 10.3791/57755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Regulated protein-protein interactions are a guiding principle for many signaling events, and the detection of such events is an important element in understanding how such pathways are organized and how they function. There are many methods to detect protein-protein interactions in cells, but relatively few can be used to detect interactions between endogenous proteins. One such method, the proximity ligation assay (PLA), has several advantages to recommend its use. Compared to other common methods of protein-protein interaction analysis, PLA has relatively high sensitivity and specificity, can be performed with minimal cell manipulation, and, in the protocol described herein, requires only two target-specific antibodies derived from different species (e.g., from mouse and rabbit) and one specialized reagent: a set of secondary antibodies that are covalently linked to specific oligonucleotides that, when brought in close proximity of one another, create an amplifiable platform for in situ PCR or rolling circle amplification. In this presentation, we show how to apply the PLA technique to visualize changes in MST1 and MST2 proximity in fixed cells. The technique described in this manuscript is particularly applicable for the analysis of cell signaling studies.
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Abstract
Ras oncoproteins can promote or suppress cellular apoptosis, but the mechanisms underlying these varied responses remain incompletely understood. Ras is linked to the Hippo tumor suppressor pathway, a highly conserved signaling cassette that regulates organ size in animals ranging from flies to humans. The proximal members of this pathway, Mammalian Ste20-like kinases (Msts) -1 and -2, self-associate in homodimers and also form heterodimers with other proteins. Formation of such complexes is known to regulate Mst kinase activity and thus, the Hippo pathway. In a manuscript that recently appeared in Current Biology, we showed that activated Hras promotes the formation of Mst1/Mst2 heterodimers, that activation of Erk was required for this event, and that these heterodimers were much less active than Mst1/Mst1 or Mst2/Mst2 homodimers. Interestingly, the formation of such heterodimers was required to deactivate the Hippo pathway and to enable transformation by Hras. In this Commentary, we discuss the background for this study and surprising implications thereof.
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Kang J, Wang J, Yao Z, Hu Y, Ma S, Fan Q, Gao F, Sun Y, Sun J. Fascin induces melanoma tumorigenesis and stemness through regulating the Hippo pathway. Cell Commun Signal 2018; 16:37. [PMID: 29970086 PMCID: PMC6029074 DOI: 10.1186/s12964-018-0250-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/22/2018] [Indexed: 02/06/2023] Open
Abstract
Background Fascin is a F-actin bundling protein and its overexpression is correlated with poor prognosis and increases metastatic potential in a number of cancers. But underlying function and mechanism of fascin on tumorigenesis in melanoma remain elusive. Methods The melanoma cell lines WM793 and WM39 were employed for the soft agar and sphere formation assay. Quantitative RT-PCR and Western blot were performed for identifying the gene expression at mRNA and protein levels, respectively. Co-IP and in vitro GST pulldown experiments were used to test the interaction between fascin and MST2. Results Fascin regulates tumorigenesis and cancer cell stemness in melanoma through inhibition of the Hippo pathway kinase MST2 and the activation of transcription factor TAZ. Our data showed that fascin interacts with the kinase domain of MST2 to inhibit its homodimer formation and kinase activity. Depletion of fascin led to increase of p-LATS level and decrease of TAZ, but not YAP. We also demonstrated that fascin regulates melanoma tumorigenesis independent of its actin-bundling activity. Conclusions Fascin is a new regulator of the MST2-LATS-TAZ pathway and plays a critical role in melanoma tumorigenesis. Inhibition of fascin reduces melanoma tumorigenesis and stemness, and thus fascin could be a potential therapeutic target for this malignancy. Electronic supplementary material The online version of this article (10.1186/s12964-018-0250-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jiaxin Kang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Jian Wang
- Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Zhuang Yao
- Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 52828, Korea
| | - Yuanzhao Hu
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Shijie Ma
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Qin Fan
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Feng Gao
- Department of Cellular and Molecular Physiology, the Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Yan Sun
- Tianjin Medical University Cancer Institute and Hospital National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China.
| | - Jianwei Sun
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, 510642, China.
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MST1 Suppression Reduces Early Brain Injury by Inhibiting the NF- κB/MMP-9 Pathway after Subarachnoid Hemorrhage in Mice. Behav Neurol 2018; 2018:6470957. [PMID: 30018671 PMCID: PMC6029491 DOI: 10.1155/2018/6470957] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/08/2018] [Accepted: 03/19/2018] [Indexed: 12/15/2022] Open
Abstract
Background Mammalian sterile 20-like kinase 1 (MST1), the key component of the Hippo-YAP pathway, exhibits an important role in the pathophysiological process of various neurological disorders, including ischemic stroke and spinal cord injury. However, during subarachnoid hemorrhage, the involvement of MST1 in the pathophysiology of early brain injury remains unknown. Methods We employed intravascular filament perforation to establish the subarachnoid hemorrhage (SAH) mouse model. The MST1 inhibitor XMU-MP-1 was intraperitoneally injected at 1 h after SAH, followed by daily injections. MST1 in vivo knockdown was performed 3 weeks prior to SAH via intracerebroventricular injection of adeno-associated virus (AAV) packaged with MST1 shRNA. The SAH grade, behavioral deficits, TUNEL staining, Evans blue dye extravasation and fluorescence, brain water content, protein and cytokine expressions by Western blotting, immunofluorescence, and proteome cytokine array were evaluated. Results Following SAH, the phosphorylation level of MST1 was upregulated at 12 h, with a peak at 72 h after SAH. It was colocalized with the microglial marker Iba1. Both XMU-MP-1 and MST1 shRNA alleviated the neurological deficits, blood-brain barrier (BBB) disruption, brain edema, neuroinflammation, and white matter injury, which were induced by SAH in association with nuclear factor- (NF-) κB p65 and matrix metallopeptidase-9 (MMP-9) activation and downregulated endothelial junction protein expression. Conclusions The current findings indicate that MST1 participates in SAH-induced BBB disruption and white matter fiber damage via the downstream NF-κB-MMP-9 signaling pathway. Therefore, MST1 antagonists may serve as a novel therapeutic target to prevent early brain injury in SAH patients.
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Iwasa H, Hossain S, Hata Y. Tumor suppressor C-RASSF proteins. Cell Mol Life Sci 2018; 75:1773-1787. [PMID: 29353317 PMCID: PMC11105443 DOI: 10.1007/s00018-018-2756-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 01/05/2018] [Accepted: 01/17/2018] [Indexed: 12/13/2022]
Abstract
Human genome has ten genes that are collectedly called Ras association domain family (RASSF). RASSF is composed of two subclasses, C-RASSF and N-RASSF. Both N-RASSF and C-RASSF encode Ras association domain-containing proteins and are frequently suppressed by DNA hypermethylation in human cancers. However, C-RASSF and N-RASSF are quite different. Six C-RASSF proteins (RASSF1-6) are characterized by a C-terminal coiled-coil motif named Salvador/RASSF/Hippo domain, while four N-RASSF proteins (RASSF7-10) lack it. C-RASSF proteins interact with mammalian Ste20-like kinases-the core kinases of the tumor suppressor Hippo pathway-and cross-talk with this pathway. Some of them share the same interacting molecules such as MDM2 and exert the tumor suppressor role in similar manners. Nevertheless, each C-RASSF protein has distinct characters. In this review, we summarize our current knowledge of how C-RASSF proteins play tumor suppressor roles and discuss the similarities and differences among C-RASSF proteins.
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Affiliation(s)
- Hiroaki Iwasa
- Department of Medical Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
| | - Shakhawoat Hossain
- Department of Medical Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Yutaka Hata
- Department of Medical Biochemistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
- Center for Brain Integration Research, Tokyo Medical and Dental University, Tokyo, 113-8519, Japan.
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20
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Sharif AA, Hergovich A. The NDR/LATS protein kinases in immunology and cancer biology. Semin Cancer Biol 2018; 48:104-114. [DOI: 10.1016/j.semcancer.2017.04.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 03/15/2017] [Accepted: 04/25/2017] [Indexed: 02/07/2023]
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21
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Cheng L, Wang H, Han S. MiR-3910 Promotes the Growth and Migration of Cancer Cells in the Progression of Hepatocellular Carcinoma. Dig Dis Sci 2017; 62:2812-2820. [PMID: 28823082 DOI: 10.1007/s10620-017-4670-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 06/30/2017] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Previous studies have reported that specific depletion of mammalian sterile-like kinase (MST1) in the mouse liver driven Hepatocellular carcinoma (HCC). However, how the expression of MST1 was regulated in the progression of HCC remains largely unknown. MATERIALS AND METHODS The expression of miR-3910 in the HCC tissues and cell lines were examined using q-PCR. The functions of miR-3910 in HCC were examined using MTT assay, Boyden chamber assay and soft agar assay. The effects of miR-3910 on the metastasis of HCC cells were evaluated using the mouse model. RESULTS Here, we have shown that miR-3910 regulated the expression of MST1. MiR-3910 was up-regulated in HCC samples and cell lines, and the expression of miR-3910 was induced by the oncogenic RasV12. In the functional study, miR-3910 was found to promote the growth and migration of HCC cells, and knocking down miR-3910 inhibited the metastasis of HCC cells. Mechanically, it was found that miR-3910 activated YAP signaling by targeting MST1. CONCLUSION Taken together, this study demonstrated that miR-3910 exerted oncogenic effects on the progression of HCC and suggested that miR-3910 might be a therapeutic target for cancer therapy.
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Affiliation(s)
- Lina Cheng
- Department of Gastroenterology, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), 7th Weiwu Road, Zhengzhou, 450003, Henan Province, China
| | - Hongwei Wang
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Shuangyin Han
- Department of Gastroenterology, People's Hospital of Zhengzhou University (Henan Provincial People's Hospital), 7th Weiwu Road, Zhengzhou, 450003, Henan Province, China.
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22
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Ready D, Yagiz K, Amin P, Yildiz Y, Funari V, Bozdag S, Cinar B. Mapping the STK4/Hippo signaling network in prostate cancer cell. PLoS One 2017; 12:e0184590. [PMID: 28880957 PMCID: PMC5589252 DOI: 10.1371/journal.pone.0184590] [Citation(s) in RCA: 16] [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: 03/24/2017] [Accepted: 08/26/2017] [Indexed: 01/18/2023] Open
Abstract
Dysregulation of MST1/STK4, a key kinase component of the Hippo-YAP pathway, is linked to the etiology of many cancers with poor prognosis. However, how STK4 restricts the emergence of aggressive cancer remains elusive. Here, we investigated the effects of STK4, primarily localized in the cytoplasm, lipid raft, and nucleus, on cell growth and gene expression in aggressive prostate cancer. We demonstrated that lipid raft and nuclear STK4 had superior suppressive effects on cell growth in vitro and in vivo compared with cytoplasmic STK4. Using RNA sequencing and bioinformatics analysis, we identified several differentially expressed (DE) genes that responded to ectopic STK4 in all three subcellular compartments. We noted that the number of DE genes observed in lipid raft and nuclear STK4 cells were much greater than cytoplasmic STK4. Our functional annotation clustering showed that these DE genes were commonly associated with oncogenic pathways such as AR, PI3K/AKT, BMP/SMAD, GPCR, WNT, and RAS as well as unique pathways such as JAK/STAT, which emerged only in nuclear STK4 cells. These findings indicate that MST1/STK4/Hippo signaling restricts aggressive tumor cell growth by intersecting with multiple molecular pathways, suggesting that targeting of the STK4/Hippo pathway may have important therapeutic implications for cancer.
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Affiliation(s)
- Damien Ready
- Department of Mathematics, Statistics, and Computer Science, Marquette University, Milwaukee, Wisconsin, United States of America
| | - Kader Yagiz
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Pooneh Amin
- Department of Biological Sciences, the Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, Georgia, United States of America
| | - Yuksel Yildiz
- Department of Physiology, Adnan Menderes University, Aydin, Turkey
| | - Vincent Funari
- Department of Medicine and Division of Genetics, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Serdar Bozdag
- Department of Mathematics, Statistics, and Computer Science, Marquette University, Milwaukee, Wisconsin, United States of America
| | - Bekir Cinar
- Department of Biological Sciences, the Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, Georgia, United States of America
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Luo X, Liu Y, Feng W, Lei L, Du Y, Wu J, Wang S. NUP37, a positive regulator of YAP/TEAD signaling, promotes the progression of hepatocellular carcinoma. Oncotarget 2017; 8:98004-98013. [PMID: 29228669 PMCID: PMC5716709 DOI: 10.18632/oncotarget.20336] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Accepted: 07/24/2017] [Indexed: 12/18/2022] Open
Abstract
Activation of YAP/TEAD signaling is very common in the progression of HCC (Hepatocellular carcinoma). Nuclear pore complex (NPC) regulates the shuttling of proteins between cytoplasm and nucleus. Nuclear accumulation of YAP protein has been observed in the majority of HCC tissues. However, whether NPC could regulate the YAP/TEAD signaling remains unknown. In this study, it was found NUP37, the component of NPC, significantly up-regulated in HCC clinical samples and mouse model. Over-expression of NUP37 promoted the growth, migration and invasion of HCC cells, while knocking down the expression of NUP37 inhibited the growth, migration, invasion and metastasis of HCC cells and improved the survival of the mouse model. NUP37 interacted with YAP and activated YAP/TEAD signaling by enhancing the interaction between YAP and TEAD. Taken together, these data demonstrated the oncogenic roles of NUP37 in the progression of HCC and suggested that NUP37 might be a promising therapeutic target.
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Affiliation(s)
- Xiaoling Luo
- Department of Gastroenterology, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province 223300, P. R. China
| | - Yuting Liu
- Department of Hepatobiliary & Pancreatic Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province 223300, P. R. China
| | - Weiguang Feng
- The Fourth People's Hospital of Huai'an, Huai'an, Jiangsu Province 223002, P. R. China
| | - Liu Lei
- Department of Hepatobiliary & Pancreatic Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province 223300, P. R. China
| | - Yemu Du
- Department of Hepatobiliary & Pancreatic Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province 223300, P. R. China
| | - Jinsheng Wu
- Department of Hepatobiliary & Pancreatic Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province 223300, P. R. China
| | - Shaochuang Wang
- Department of Hepatobiliary & Pancreatic Surgery, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu Province 223300, P. R. China
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Abstract
The MST1 and MST2 protein kinases comprise the GCK-II subfamily of protein kinases. In addition to their amino-terminal kinase catalytic domain, related to that of the Saccharomyces cerevisiae protein kinase Ste20, their most characteristic feature is the presence near the carboxy terminus of a unique helical structure called a SARAH domain; this segment allows MST1/MST2 to homodimerize and to heterodimerize with the other polypeptides that contain SARAH domains, the noncatalytic polypeptides RASSF1-6 and Sav1/WW45. Early studies emphasized the potent ability of MST1/MST2 to induce apoptosis upon being overexpressed, as well as the conversion of the endogenous MST1/MST2 polypeptides to constitutively active, caspase-cleaved catalytic fragments during apoptosis initiated by any stimulus. Later, the cleaved, constitutively active form of MST1 was identified in nonapoptotic, quiescent adult hepatocytes as well as in cells undergoing terminal differentiation, where its presence is necessary to maintain those cellular states. The physiologic regulation of full length MST1/MST2 is controlled by the availability of its noncatalytic SARAH domain partners. Interaction with Sav1/WW45 recruits MST1/MST2 into a tumor suppressor pathway, wherein it phosphorylates and activates the Sav1-bound protein kinases Lats1/Lats2, potent inhibitors of the Yap1 and TAZ oncogenic transcriptional regulators. A constitutive interaction with the Rap1-GTP binding protein RASSF5B (Nore1B/RAPL) in T cells recruits MST1 (especially) and MST2 as an effector of Rap1's control of T cell adhesion and migration, a program crucial to immune surveillance and response; loss of function mutation in human MST1 results in profound immunodeficiency. MST1 and MST2 are also regulated by other protein kinases, positively by TAO1 and negatively by Par1, SIK2/3, Akt, and cRaf1. The growing list of candidate MST1/MST2 substrates suggests that the full range of MST1/MST2's physiologic programs and contributions to pathophysiology remains to be elucidated.
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Affiliation(s)
- Jacob A. Galan
- Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Diabetes Unit and Medical Services, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Joseph Avruch
- Department of Molecular Biology, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Diabetes Unit and Medical Services, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, United States
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