1
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Brown ND, Vomhof-DeKrey EE. Focal Adhesion Kinase and Colony Stimulating Factors: Intestinal Homeostasis and Innate Immunity Crosstalk. Cells 2024; 13:1178. [PMID: 39056760 PMCID: PMC11274384 DOI: 10.3390/cells13141178] [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: 04/30/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Thousands struggle with acute and chronic intestinal injury due to various causes. Epithelial intestinal healing is dependent on phenotypic transitions to a mobile phenotype. Focal adhesion kinase (FAK) is a ubiquitous protein that is essential for cell mobility. This phenotype change is mediated by FAK activation and proves to be a promising target for pharmaceutical intervention. While FAK is crucial for intestinal healing, new evidence connects FAK with innate immunity and the importance it plays in macrophage/monocyte chemotaxis, as well as other intracellular signaling cascades. These cascades play a part in macrophage/monocyte polarization, maturation, and inflammation that is associated with intestinal injury. Colony stimulating factors (CSFs) such as macrophage colony stimulating factor (M-CSF/CSF-1) and granulocyte macrophage colony stimulating factor (GM-CSF/CSF-2) play a critical role in maintaining homeostasis within intestinal mucosa by crosstalk capabilities between macrophages and epithelial cells. The communication between these cells is imperative in orchestrating healing upon injury. Diving deeper into these connections may allow us a greater insight into the role that our immune system plays in healing, as well as a better comprehension of inflammatory diseases of the gut.
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Affiliation(s)
- Nicholas D. Brown
- Department of Pathology, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA;
| | - Emilie E. Vomhof-DeKrey
- Department of Pathology, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA;
- Department of Surgery, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
- Department of Biomedical Sciences, School of Medicine and the Health Sciences, University of North Dakota, Grand Forks, ND 58203, USA
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2
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Hecht M, Alber N, Marhoffer P, Johnsson N, Gronemeyer T. The concerted action of SEPT9 and EPLIN modulates the adhesion and migration of human fibroblasts. Life Sci Alliance 2024; 7:e202201686. [PMID: 38719752 PMCID: PMC11077590 DOI: 10.26508/lsa.202201686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Septins are cytoskeletal proteins that participate in cell adhesion, migration, and polarity establishment. The septin subunit SEPT9 directly interacts with the single LIM domain of epithelial protein lost in neoplasm (EPLIN), an actin-bundling protein. Using a human SEPT9 KO fibroblast cell line, we show that cell adhesion and migration are regulated by the interplay between both proteins. The low motility of SEPT9-depleted cells could be partly rescued by increased levels of EPLIN. The normal organization of actin-related filopodia and stress fibers was directly dependent on the expression level of SEPT9 and EPLIN. Increased levels of SEPT9 and EPLIN enhanced the size of focal adhesions in cell protrusions, correlating with stabilization of actin bundles. Conversely, decreased levels had the opposite effect. Our work thus establishes the interaction between SEPT9 and EPLIN as an important link between the septin and the actin cytoskeleton, influencing cell adhesion, motility, and migration.
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Affiliation(s)
- Matthias Hecht
- https://ror.org/032000t02 Institute of Molecular Genetics and Cell Biology, James Franck Ring N27, Ulm University, Ulm, Germany
| | - Nane Alber
- https://ror.org/032000t02 Institute of Molecular Genetics and Cell Biology, James Franck Ring N27, Ulm University, Ulm, Germany
| | - Pia Marhoffer
- https://ror.org/032000t02 Institute of Molecular Genetics and Cell Biology, James Franck Ring N27, Ulm University, Ulm, Germany
| | - Nils Johnsson
- https://ror.org/032000t02 Institute of Molecular Genetics and Cell Biology, James Franck Ring N27, Ulm University, Ulm, Germany
| | - Thomas Gronemeyer
- https://ror.org/032000t02 Institute of Molecular Genetics and Cell Biology, James Franck Ring N27, Ulm University, Ulm, Germany
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3
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Matsuda A, Masuzawa R, Takahashi K, Takano K, Endo T. MEK inhibitors and DA-Raf, a dominant-negative antagonist of the Ras-ERK pathway, prevent the migration and invasion of KRAS-mutant cancer cells. Cytoskeleton (Hoboken) 2024. [PMID: 38872577 DOI: 10.1002/cm.21881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/08/2024] [Accepted: 05/16/2024] [Indexed: 06/15/2024]
Abstract
The Ras-induced ERK pathway (Raf-MEK-ERK signaling cascade) regulates a variety of cellular responses including cell proliferation, survival, and migration. Activating mutations in RAS genes, particularly in the KRAS gene, constitutively activate the ERK pathway, resulting in tumorigenesis, cancer cell invasion, and metastasis. DA-Raf1 (DA-Raf) is a splicing isoform of A-Raf and contains the Ras-binding domain but lacks the kinase domain. Consequently, DA-Raf antagonizes the Ras-ERK pathway in a dominant-negative manner and can serve as a tumor suppressor that targets mutant Ras protein-induced tumorigenesis. We show here that MEK inhibitors and DA-Raf interfere with the in vitro collective cell migration and invasion of human KRAS-mutant carcinoma cell lines, the lung adenocarcinoma A549, colorectal carcinoma HCT116, and pancreatic carcinoma MIA PaCa-2 cells. DA-Raf expression was silenced in these cancer cell lines. All these cell lines had high collective migration abilities and invasion properties in Matrigel, compared with nontumor cells. Their migration and invasion abilities were impaired by suppressing the ERK pathway with the MEK inhibitors U0126 and trametinib, an approved anticancer drug. Expression of DA-Raf in MIA PaCa-2 cells reduced the ERK activity and hindered the migration and invasion abilities. Therefore, DA-Raf may function as an invasion suppressor protein in the KRAS-mutant cancer cells by blocking the Ras-ERK pathway when DA-Raf expression is induced in invasive cancer cells.
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Affiliation(s)
- Aoi Matsuda
- Department of Biology, Graduate School of Science, Chiba University, Chiba, Chiba, Japan
| | - Ryuichi Masuzawa
- Department of Biology, Graduate School of Science, Chiba University, Chiba, Chiba, Japan
| | - Kazuya Takahashi
- Department of Biology, Graduate School of Science, Chiba University, Chiba, Chiba, Japan
| | - Kazunori Takano
- Department of Biology, Graduate School of Science, Chiba University, Chiba, Chiba, Japan
| | - Takeshi Endo
- Department of Biology, Graduate School of Science, Chiba University, Chiba, Chiba, Japan
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4
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Lutze RD, Ingersoll MA, Thotam A, Joseph A, Fernandes J, Teitz T. ERK1/2 Inhibition via the Oral Administration of Tizaterkib Alleviates Noise-Induced Hearing Loss While Tempering down the Immune Response. Int J Mol Sci 2024; 25:6305. [PMID: 38928015 PMCID: PMC11204379 DOI: 10.3390/ijms25126305] [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: 05/17/2024] [Revised: 06/02/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
Noise-induced hearing loss (NIHL) is a major cause of hearing impairment and is linked to dementia and mental health conditions, yet no FDA-approved drugs exist to prevent it. Downregulating the mitogen-activated protein kinase (MAPK) cellular pathway has emerged as a promising approach to attenuate NIHL, but the molecular targets and the mechanism of protection are not fully understood. Here, we tested specifically the role of the kinases ERK1/2 in noise otoprotection using a newly developed, highly specific ERK1/2 inhibitor, tizaterkib, in preclinical animal models. Tizaterkib is currently being tested in phase 1 clinical trials for cancer treatment and has high oral bioavailability and low predicted systemic toxicity in mice and humans. In this study, we performed dose-response measurements of tizaterkib's efficacy against permanent NIHL in adult FVB/NJ mice, and its minimum effective dose (0.5 mg/kg/bw), therapeutic index (>50), and window of opportunity (<48 h) were determined. The drug, administered orally twice daily for 3 days, 24 h after 2 h of 100 dB or 106 dB SPL noise exposure, at a dose equivalent to what is prescribed currently for humans in clinical trials, conferred an average protection of 20-25 dB SPL in both female and male mice. The drug shielded mice from the noise-induced synaptic damage which occurs following loud noise exposure. Equally interesting, tizaterkib was shown to decrease the number of CD45- and CD68-positive immune cells in the mouse cochlea following noise exposure. This study suggests that repurposing tizaterkib and the ERK1/2 kinases' inhibition could be a promising strategy for the treatment of NIHL.
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Affiliation(s)
- Richard D. Lutze
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA; (R.D.L.); (M.A.I.); (A.T.); (A.J.); (J.F.)
| | - Matthew A. Ingersoll
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA; (R.D.L.); (M.A.I.); (A.T.); (A.J.); (J.F.)
| | - Alena Thotam
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA; (R.D.L.); (M.A.I.); (A.T.); (A.J.); (J.F.)
| | - Anjali Joseph
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA; (R.D.L.); (M.A.I.); (A.T.); (A.J.); (J.F.)
| | - Joshua Fernandes
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA; (R.D.L.); (M.A.I.); (A.T.); (A.J.); (J.F.)
| | - Tal Teitz
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA; (R.D.L.); (M.A.I.); (A.T.); (A.J.); (J.F.)
- The Scintillon Research Institute, San Diego, CA 92121, USA
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5
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Zhang M, Jin Y, Guo X, Shan W, Zhang J, Yuan A, Shi Y. Resveratrol protects mesangial cells under high glucose by regulating the miR-1231/IGF1/ERK pathway. ENVIRONMENTAL TOXICOLOGY 2024; 39:2326-2339. [PMID: 38156429 DOI: 10.1002/tox.24103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/13/2023] [Accepted: 12/10/2023] [Indexed: 12/30/2023]
Abstract
Diabetic nephropathy (DN) is one of the complications of diabetes mellitus and the main cause of end-stage renal disease (ESRD), which is a serious threat to human health. In DN, mesangial cells (MCs) are a critical target cell that perform a variety of key functions, and abnormal proliferation of MCs is a common and prominent pathological change in DN. In recent years, the investigation of Chinese medicine interventions for DN has increased significantly in recent years due to the many potential adverse effects and controversies associated with the treatment of DN with Western medicines. In this study, we evaluated the protective effect of resveratrol (RES), an active ingredient known as a natural antioxidant, on HMCs under high glucose and explored its possible mechanism of action. We found that RES inhibited the proliferation of human mesangial cell (HMC) under high glucose and blocked cell cycle progression. In the high glucose environment, RES upregulated miR-1231, reduced IGF1 expression, inhibited the activity of the extracellular signal-regulated kinase (ERK) signaling pathway and reduced levels of the inflammatory factors TNF-α and IL-6. In addition, we found that miR-1231 mimics were synergistically inhibited with RES, whereas miR-1231 inhibitor attenuated the protective effect of RES on HMCs. Thus, our results suggest that the protective effect of RES on HMCs under high glucose is achieved, at least in part, through modulation of the miR-1231/IGF1/ERK pathway. The discovery of this potential mechanism may provide a new molecular therapeutic target for the prevention and treatment of DN, and may also bring new ideas for the clinical research in DN.
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Affiliation(s)
- Ming Zhang
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Yingli Jin
- Department of Pharmacology, School of Basic Medical Science, Jilin University, Changchun, Jilin Province, China
| | - Xuerui Guo
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Wanxin Shan
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Jinlong Zhang
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Aoxue Yuan
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
| | - Yan Shi
- Department of Experimental Pharmacology and Toxicology, School of Pharmacy, Jilin University, Changchun, Jilin Province, China
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6
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Hirashima T, Matsuda M. ERK-mediated curvature feedback regulates branching morphogenesis in lung epithelial tissue. Curr Biol 2024; 34:683-696.e6. [PMID: 38228149 DOI: 10.1016/j.cub.2023.12.049] [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: 07/14/2022] [Revised: 11/06/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024]
Abstract
Intricate branching patterns emerge in internal organs due to the recurrent occurrence of simple deformations in epithelial tissues. During murine lung development, epithelial cells in distal tips of the single tube require fibroblast growth factor (FGF) signals emanating from their surrounding mesenchyme to form repetitive tip bifurcations. However, it remains unknown how the cells employ FGF signaling to convert their behaviors to achieve the recursive branching processes. Here, we show a mechano-chemical regulatory system underlying lung branching morphogenesis, orchestrated by extracellular signal-regulated kinase (ERK) as a downstream driver of FGF signaling. We found that tissue-scale curvature regulated ERK activity in the lung epithelium using two-photon live cell imaging and mechanical perturbations. ERK activation occurs specifically in epithelial tissues exhibiting positive curvature, regardless of whether the change in curvature was attributable to morphogenesis or perturbations. Moreover, ERK activation accelerates actin polymerization preferentially at the apical side of cells, mechanically contributing to the extension of the apical membrane, culminating in a reduction of epithelial tissue curvature. These results indicate the existence of a negative feedback loop between tissue curvature and ERK activity that transcends spatial scales. Our mathematical model confirms that this regulatory mechanism is sufficient to generate the recursive branching processes. Taken together, we propose that ERK orchestrates a curvature feedback loop pivotal to the self-organized patterning of tissues.
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Affiliation(s)
- Tsuyoshi Hirashima
- Mechanobiology Institute, National University of Singapore, 5A Engineering Drive 1, Singapore 117411, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 2 Medical Drive MD9, Singapore 117593, Singapore; The Hakubi Center, Kyoto University, Yoshida-honmachi, Kyoto 606-8501, Japan; Graduate School of Biostudies, Kyoto University, Yoshidakone-cho, Kyoto 606-8501, Japan; Japan Science and Technology Agency, PRESTO, 4-1-8 Honchō, Kawaguchi 332-0012, Japan.
| | - Michiyuki Matsuda
- Graduate School of Biostudies, Kyoto University, Yoshidakone-cho, Kyoto 606-8501, Japan; Graduate School of Medicine, Kyoto University, Yoshidakone-cho, Kyoto 606-8501, Japan; Institute for Integrated Cell-Material Sciences, Kyoto University, Yoshida-honmachi, Kyoto 606-8317, Japan
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7
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Nayak AN, Hirashima T. Tug-of-war via ERK signaling pathway for tissue organization - ERK activation to force generation. Curr Opin Cell Biol 2023; 85:102249. [PMID: 37783032 DOI: 10.1016/j.ceb.2023.102249] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/28/2023] [Accepted: 09/07/2023] [Indexed: 10/04/2023]
Abstract
Extracellular signal-regulated kinase (ERK) plays a crucial role in regulating collective cell behaviors observed in diverse biological phenomena. Emerging studies have shed light on the involvement of the ERK signaling pathway in the reception and generation of mechanical forces, thereby governing local mechanical interactions within multicellular tissues. Although limited in number, studies have provided insights into how ERK-mediated mechanical interactions contribute to multicellular organization. Here we explore the impact of ERK-mediated mechanical interactions on tissue morphogenesis, cell extrusion in homeostasis, and their interplay with the physical microenvironments of the extracellular matrix. We conclude that the coupling system of ERK activity with mechanical forces offers a promising avenue to unravel the emergent collective dynamics underlying tissue organization.
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Affiliation(s)
| | - Tsuyoshi Hirashima
- Mechanobiology Institute, National University of Singapore, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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8
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Lutze RD, Ingersoll MA, Thotam A, Joseph A, Fernandes J, Teitz T. ERK1/2 Inhibition Alleviates Noise-Induced Hearing Loss While Tempering Down the Immune Response. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.18.563007. [PMID: 37905140 PMCID: PMC10614960 DOI: 10.1101/2023.10.18.563007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Noise-induced hearing loss (NIHL) is a major cause of hearing impairment, yet no FDA-approved drugs exist to prevent it. Targeting the mitogen activated protein kinase (MAPK) cellular pathway has emerged as a promising approach to attenuate NIHL. Tizaterkib is an orally bioavailable, highly specific ERK1/2 inhibitor, currently in Phase-1 anticancer clinical trials. Here, we tested tizaterkib's efficacy against permanent NIHL in mice at doses equivalent to what humans are currently prescribed in clinical trials. The drug given orally 24 hours after noise exposure, protected an average of 20-25 dB SPL in three frequencies, in female and male mice, had a therapeutic window >50, and did not confer additional protection to KSR1 genetic knockout mice, showing the drug works through the MAPK pathway. Tizaterkib shielded from noise-induced cochlear synaptopathy, and a 3-day, twice daily, treatment with the drug was the optimal determined regimen. Importantly, tizaterkib was shown to decrease the number of CD45 and CD68 positive immune cells in the cochlea following noise exposure, which could be part of the protective mechanism of MAPK inhibition.
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Affiliation(s)
- Richard D. Lutze
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Matthew A. Ingersoll
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Alena Thotam
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Anjali Joseph
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Joshua Fernandes
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
| | - Tal Teitz
- Department of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, NE 68178, USA
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9
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Martin-Vega A, Cobb MH. Navigating the ERK1/2 MAPK Cascade. Biomolecules 2023; 13:1555. [PMID: 37892237 PMCID: PMC10605237 DOI: 10.3390/biom13101555] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
The RAS-ERK pathway is a fundamental signaling cascade crucial for many biological processes including proliferation, cell cycle control, growth, and survival; common across all cell types. Notably, ERK1/2 are implicated in specific processes in a context-dependent manner as in stem cells and pancreatic β-cells. Alterations in the different components of this cascade result in dysregulation of the effector kinases ERK1/2 which communicate with hundreds of substrates. Aberrant activation of the pathway contributes to a range of disorders, including cancer. This review provides an overview of the structure, activation, regulation, and mutational frequency of the different tiers of the cascade; with a particular focus on ERK1/2. We highlight the importance of scaffold proteins that contribute to kinase localization and coordinate interaction dynamics of the kinases with substrates, activators, and inhibitors. Additionally, we explore innovative therapeutic approaches emphasizing promising avenues in this field.
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Affiliation(s)
- Ana Martin-Vega
- Department of Pharmacology, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX 75390, USA;
| | - Melanie H. Cobb
- Department of Pharmacology, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX 75390, USA;
- Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, 6001 Forest Park Rd., Dallas, TX 75390, USA
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10
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Shao J, Yu W, Wei W, Wang S, Zheng Z, Li L, Sun Y, Zhang J, Li Z, Ren X, Zang W, Cao J. MAPK-ERK-CREB signaling pathway upregulates Nav1.6 in oxaliplatin-induced neuropathic pain in the rat. Toxicol Lett 2023; 384:149-160. [PMID: 37453670 DOI: 10.1016/j.toxlet.2023.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
The voltage-gated sodium channel subtype Nav1.6 is involved in the electrophysiological changes of primary sensory neurons that occur in oxaliplatin-induced neuropathic pain, but its regulatory mechanism remains unclear. In this study, Western blot, RT-qPCR, immunofluorescence staining, chromatin immunoprecipitation were used to prove the mechanism of MAPK-ERK-CREB signaling pathway participating in oxaliplatin-induced neuropathic pain by regulating Nav1.6. The results showed that p-Raf1 and p-ERK, key molecules in MAPK/ERK pathway, and Nav1.6 were significantly increased in DRGs of oxaliplatin-induced neuropathic pain rats. Inhibition of p-Raf1 and p-ERK respectively not only reduced the expression of Nav1.6 protein in DRGs of OXA rats, but also caused a decrease in Nav1.6 mRNA, which led us to further explore the transcription factor CREB regulated by MAPK/ERK pathway. Results showed that CREB was co-distributed with Nav1.6. Inhibition of CREB resulted in decreased mRNA and protein expression of Nav1.6, and alleviated oxaliplatin-induced neuropathic pain. A chromatin immunoprecipitation experiment proved that OXA caused p-CREB to directly bind to the promoter region of Scn8A, which is the encoding gene for Nav1.6, and promote the transcription of Scn8A. In summary, in this study, we found that oxaliplatin can activate the MAPK/ERK pathway, which promotes the expression and activation of CREB and leads to an increase in Scn8A transcription, and then leads to an increase in Nav1.6 protein expression to enhance neuronal excitability and cause pain. This study provides an experimental basis for the molecular mechanism of sodium channel regulation in oxaliplatin-induced neuropathic pain.
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Affiliation(s)
- Jinping Shao
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Wenli Yu
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China; Xinyang Central Hospital, Xinyang, China
| | - Wei Wei
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Suifeng Wang
- Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China; The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Zhenli Zheng
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Lei Li
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Yanyan Sun
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Jingjing Zhang
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Zhihua Li
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Xiuhua Ren
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China
| | - Weidong Zang
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China.
| | - Jing Cao
- Department of Human Anatomy, School of Basic Medicine, Zhengzhou University, Zhengzhou 450001, China; Institute of Neuroscience, Zhengzhou University, Zhengzhou 450052, China.
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11
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Di X, Gao X, Peng L, Ai J, Jin X, Qi S, Li H, Wang K, Luo D. Cellular mechanotransduction in health and diseases: from molecular mechanism to therapeutic targets. Signal Transduct Target Ther 2023; 8:282. [PMID: 37518181 PMCID: PMC10387486 DOI: 10.1038/s41392-023-01501-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 08/01/2023] Open
Abstract
Cellular mechanotransduction, a critical regulator of numerous biological processes, is the conversion from mechanical signals to biochemical signals regarding cell activities and metabolism. Typical mechanical cues in organisms include hydrostatic pressure, fluid shear stress, tensile force, extracellular matrix stiffness or tissue elasticity, and extracellular fluid viscosity. Mechanotransduction has been expected to trigger multiple biological processes, such as embryonic development, tissue repair and regeneration. However, prolonged excessive mechanical stimulation can result in pathological processes, such as multi-organ fibrosis, tumorigenesis, and cancer immunotherapy resistance. Although the associations between mechanical cues and normal tissue homeostasis or diseases have been identified, the regulatory mechanisms among different mechanical cues are not yet comprehensively illustrated, and no effective therapies are currently available targeting mechanical cue-related signaling. This review systematically summarizes the characteristics and regulatory mechanisms of typical mechanical cues in normal conditions and diseases with the updated evidence. The key effectors responding to mechanical stimulations are listed, such as Piezo channels, integrins, Yes-associated protein (YAP) /transcriptional coactivator with PDZ-binding motif (TAZ), and transient receptor potential vanilloid 4 (TRPV4). We also reviewed the key signaling pathways, therapeutic targets and cutting-edge clinical applications of diseases related to mechanical cues.
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Affiliation(s)
- Xingpeng Di
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Xiaoshuai Gao
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Liao Peng
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Jianzhong Ai
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Xi Jin
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Shiqian Qi
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Hong Li
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China
| | - Kunjie Wang
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China.
| | - Deyi Luo
- Department of Urology and Institute of Urology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, P.R. China.
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12
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Nałęcz-Jawecki P, Gagliardi PA, Kochańczyk M, Dessauges C, Pertz O, Lipniacki T. The MAPK/ERK channel capacity exceeds 6 bit/hour. PLoS Comput Biol 2023; 19:e1011155. [PMID: 37216347 DOI: 10.1371/journal.pcbi.1011155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023] Open
Abstract
Living cells utilize signaling pathways to sense, transduce, and process information. As the extracellular stimulation often has rich temporal characteristics which may govern dynamic cellular responses, it is important to quantify the rate of information flow through the signaling pathways. In this study, we used an epithelial cell line expressing a light-activatable FGF receptor and an ERK activity reporter to assess the ability of the MAPK/ERK pathway to transduce signal encoded in a sequence of pulses. By stimulating the cells with random light pulse trains, we demonstrated that the MAPK/ERK channel capacity is at least 6 bits per hour. The input reconstruction algorithm detects the light pulses with 1-min accuracy 5 min after their occurrence. The high information transmission rate may enable the pathway to coordinate multiple processes including cell movement and respond to rapidly varying stimuli such as chemoattracting gradients created by other cells.
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Affiliation(s)
- Paweł Nałęcz-Jawecki
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | | | - Marek Kochańczyk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | | | - Olivier Pertz
- Institute of Cell Biology, University of Bern, Bern, Switzerland
| | - Tomasz Lipniacki
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
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13
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Cao Z, Guan L, Yu R, Yang F, Chen J. High Expression of Heterogeneous Nuclear Ribonucleoprotein A1 Facilitates Hepatocellular Carcinoma Growth. J Hepatocell Carcinoma 2023; 10:517-530. [PMID: 37034304 PMCID: PMC10075271 DOI: 10.2147/jhc.s402247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 03/09/2023] [Indexed: 04/03/2023] Open
Abstract
Purpose Hepatocellular carcinoma (HCC) represents one of the most common tumors in the world. Our study aims to explore new markers and therapeutic targets for HCC. Heterogeneous Nuclear ribonucleoprotein A1 (hnRNPA1) has recently been found to be involved in the progression of several types of cancer, but its role in HCC remains uncovered. Methods We performed bioinformatic analysis to preliminarily show the relationship between hnRNPA1 and liver cancer. Then the correlation of the hnRNPA1 gene expression with clinicopathological characteristics of HCC patients was verified by human liver cancer tissue microarrays. The functional role of this gene was evaluated by in vivo and vitro experiments. Results Results showed that the expression of hnRNPA1 was upregulated in HCC tissues and was associated with pathological stage of HCC patients. Knockdown of hnRNPA1 gene markedly inhibited tumor growth in vivo, and reversed the effects on proliferation, migration and invasion and promoted apoptosis in vitro. Furthermore, down-regulation of hnRNPA1 gene expression can inhibit the activity of the MEK/ERK pathway. Conclusion In our work, we combined bioinformatic analysis with in vivo and in vitro experiments to initially elucidate the function of hnRNPA1 in liver cancer, which may help to explore biomarkers and therapeutic targets for HCC patients.
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Affiliation(s)
- Ziyi Cao
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People’s Republic of China
| | - Li Guan
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People’s Republic of China
| | - Runzhi Yu
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People’s Republic of China
| | - Fan Yang
- Shanghai Key Laboratory of Clinical Geriatric Medicine, Shanghai, 200040, People’s Republic of China
| | - Jie Chen
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, People’s Republic of China
- Correspondence: Jie Chen; Fan Yang, Email ;
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14
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Kim J, Zimmerman MA, Shin WY, Boettcher BT, Lee JS, Park JI, Ali M, Yang M, Mishra J, Hagen CE, McGraw JE, Mathison A, Woehlck HJ, Lomberk G, Camara AKS, Urrutia RA, Stowe DF, Hong JC. Effects of Subnormothermic Regulated Hepatic Reperfusion on Mitochondrial and Transcriptomic Profiles in a Porcine Model. Ann Surg 2023; 277:e366-e375. [PMID: 34387201 PMCID: PMC8840998 DOI: 10.1097/sla.0000000000005156] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE We sought to investigate the biological effects of pre-reperfusion treatments of the liver after warm and cold ischemic injuries in a porcine donation after circulatory death model. SUMMARY OF BACKGROUND DATA Donation after circulatory death represents a severe form of liver ischemia and reperfusion injury that has a profound impact on graft function after liver transplantation. METHODS Twenty donor pig livers underwent 60 minutes of in situ warm ischemia after circulatory arrest and 120 minutes of cold static preservation prior to simulated transplantation using an ex vivo perfusion machine. Four reperfusion treatments were compared: Control-Normothermic (N), Control- Subnormothermic (S), regulated hepatic reperfusion (RHR)-N, and RHR-S (n = 5 each). The biochemical, metabolic, and transcriptomic profiles, as well as mitochondrial function were analyzed. RESULTS Compared to the other groups, RHR-S treated group showed significantly lower post-reperfusion aspartate aminotransferase levels in the reperfusion effluent and histologic findings of hepatocyte viability and lesser degree of congestion and necrosis. RHR-S resulted in a significantly higher mitochondrial respiratory control index and calcium retention capacity. Transcriptomic profile analysis showed that treatment with RHR-S activated cell survival and viability, cellular homeostasis as well as other biological functions involved in tissue repair such as cytoskeleton or cytoplasm organization, cell migration, transcription, and microtubule dynamics. Furthermore, RHR-S inhibited organismal death, morbidity and mortality, necrosis, and apoptosis. CONCLUSION Subnormothermic RHR mitigates IRI and preserves hepatic mitochondrial function after warm and cold hepatic ischemia. This organ resuscitative therapy may also trigger the activation of protective genes against IRI. Sub- normothermic RHR has potential applicability to clinical liver transplantation.
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Affiliation(s)
- Joohyun Kim
- Division of Transplant Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee WI
- Transplant Center, Froedtert & the Medical College of Wisconsin, and Children's Wisconsin, Milwaukee, WI
| | - Michael A Zimmerman
- Division of Transplant Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee WI
- Transplant Center, Froedtert & the Medical College of Wisconsin, and Children's Wisconsin, Milwaukee, WI
| | - Woo Young Shin
- Department of Surgery, inha University School of Medicine, incheon, South Korea
| | - Brent T Boettcher
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | - Ju-Seog Lee
- Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Jong-In Park
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI
| | - Muhammed Ali
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | - Meiying Yang
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | - Jyotsna Mishra
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | | | - Joseph E McGraw
- Department of Pharmacology, Concordia University, Mequon, WI
| | - Angela Mathison
- Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI; and
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee WI
| | - Harvey J Woehlck
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | - Gwen Lomberk
- Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI; and
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee WI
| | - Amadou K S Camara
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | - Raul A Urrutia
- Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI; and
- Division of Research, Department of Surgery, Medical College of Wisconsin, Milwaukee WI
| | - David F Stowe
- Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI
| | - Johnny C Hong
- Division of Transplant Surgery, Department of Surgery, Medical College of Wisconsin, Milwaukee WI
- Transplant Center, Froedtert & the Medical College of Wisconsin, and Children's Wisconsin, Milwaukee, WI
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15
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Choi JY, Jin X, Kim H, Koh S, Cho HJ, Kim BG. High Mobility Group Box 1 as an Autocrine Chemoattractant for Oligodendrocyte Lineage Cells in White Matter Stroke. Stroke 2023; 54:575-586. [PMID: 36490365 DOI: 10.1161/strokeaha.122.041414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The migration of oligodendrocyte precursor cells (OPC) is a key process of remyelination, which is essential for the treatment of white matter stroke. This study aimed to investigate the role of HMGB1 (high mobility group box 1), a damage-associated molecular pattern released from dying oligodendrocytes, as an autocrine chemoattractant that promotes OPC migration. METHODS The migratory capacity of primary cultured OPCs was measured using the Boyden chamber assay. The downstream pathway of HMGB1-mediated OPC migration was specified by siRNA-induced knockdown or pharmacological blockade of TLR2 (toll-like receptor 2), RAGE (receptor for advanced glycation end product), Src, ERK1/2 (extracellular signal-regulated kinase1/2), and FAK (focal adhesion kinase). Conditioned media were collected from oxygen-glucose deprivation-treated oligodendrocytes, and the impact on OPC migration was assessed. Lesion size and number of intralesional Olig2(+) cells were analyzed in an in vivo model of white matter stroke with N5-(1-iminoethyl)-L-ornithine (L-NIO). RESULTS HMGB1 treatment promoted OPC migration. HMGB1 antagonism reversed such effects to untreated levels. Among the candidates for the downstream signal of HMGB1-mediated migration, the knockdown of TLR2 rather than that of RAGE attenuated the migration-promoting effect of HMGB1. Further specification of the HMGB1-TLR2 axis revealed that the phosphorylation of ERK1/2 and its downstream molecule FAK, rather than of Src, was decreased in TLR2-knockdown OPCs, and pharmacological inhibition of ERK1/2 and FAK led to decreased OPC migration. Oxygen-glucose deprivation-conditioned media promoted OPC migration, suggesting the autocrine chemoattractant function of HMGB1. In vivo, TLR2(-/-)-mice showed lesser intralesional Olig2(+) cells compared to wild-type controls in response to L-NIO induced ischemic injury regardless of HMGB1 administration. CONCLUSIONS HMGB1, through the TLR2-ERK1/2-FAK axis, functions as an autocrine chemoattractant to promote OPC migration, which is an initial and indispensable step in remyelination. Thus, a novel treatment strategy for white matter stroke based on the HMGB1-TLR2 axis in the oligodendrocyte lineage could be feasible.
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Affiliation(s)
- Jun Young Choi
- Department of Brain science, Ajou University School of Medicine, Republic of Korea (J.Y.C., X.J., H.K., S.K., H.J.C., B.G.K.).,Department of Neurology, Ajou University School of Medicine, Republic of Korea (J.Y.C., S.K., B.G.K.)
| | - Xuelian Jin
- Department of Brain science, Ajou University School of Medicine, Republic of Korea (J.Y.C., X.J., H.K., S.K., H.J.C., B.G.K.).,Neuroscience graduate program, Ajou University Graduate School of Medicine, Republic of Korea (X.J., H.K., S.K.).,Department of Nephrology, Suqian First Hospital, Jiangsu, China (X.J.)
| | - Hanki Kim
- Department of Brain science, Ajou University School of Medicine, Republic of Korea (J.Y.C., X.J., H.K., S.K., H.J.C., B.G.K.).,Neuroscience graduate program, Ajou University Graduate School of Medicine, Republic of Korea (X.J., H.K., S.K.)
| | - Seungyon Koh
- Department of Brain science, Ajou University School of Medicine, Republic of Korea (J.Y.C., X.J., H.K., S.K., H.J.C., B.G.K.).,Department of Neurology, Ajou University School of Medicine, Republic of Korea (J.Y.C., S.K., B.G.K.).,Neuroscience graduate program, Ajou University Graduate School of Medicine, Republic of Korea (X.J., H.K., S.K.)
| | - Hyo Jin Cho
- Department of Brain science, Ajou University School of Medicine, Republic of Korea (J.Y.C., X.J., H.K., S.K., H.J.C., B.G.K.)
| | - Byung Gon Kim
- Department of Brain science, Ajou University School of Medicine, Republic of Korea (J.Y.C., X.J., H.K., S.K., H.J.C., B.G.K.).,Department of Neurology, Ajou University School of Medicine, Republic of Korea (J.Y.C., S.K., B.G.K.)
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16
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Kaposi's Sarcoma-Associated Herpesvirus ORF21 Enhances the Phosphorylation of MEK and the Infectivity of Progeny Virus. Int J Mol Sci 2023; 24:ijms24021238. [PMID: 36674756 PMCID: PMC9867424 DOI: 10.3390/ijms24021238] [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: 11/24/2022] [Revised: 12/27/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Kaposi's sarcoma-associated herpesvirus (KSHV), also known as human herpesvirus-8, is the causative agent of Kaposi's sarcoma, Castleman's disease, and primary effusion lymphoma. Although the functions of the viral thymidine kinases (vTK) of herpes simplex virus-1/2 are well understood, that of KSHV ORF21 (an ortholog of vTK) is largely unknown. Here, we investigated the role of ORF21 in lytic replication and infection by generating two ORF21-mutated KSHV BAC clones: ORF21-kinase activity deficient KSHV (21KD) and stop codon-induced ORF21-deleted KSHV (21del). The results showed that both ORF21 mutations did not affect viral genome replication, lytic gene transcription, or the production of viral genome-encapsidated particles. The ORF21 molecule-dependent function, other than the kinase function of ORF21, was involved in the infectivity of the progeny virus. ORF21 was expressed 36 h after the induction of lytic replication, and endogenously expressed ORF21 was localized in the whole cytoplasm. Moreover, ORF21 upregulated the MEK phosphorylation and anchorage-independent cell growth. The inhibition of MEK signaling by U0126 in recipient target cells suppressed the number of progeny virus-infected cells. These suggest that ORF21 transmitted as a tegument protein in the progeny virus enhances the new infection through MEK up-regulation in the recipient cell. Our findings indicate that ORF21 plays key roles in the infection of KSHV through the manipulation of the cellular function.
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17
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Cruz Del Puerto M, Rojas ML, Racca AC, Kourdova LT, Miranda AL, Panzetta-Dutari G, Genti-Raimondi S, Flores-Martín JB. StarD7 deficiency hinders cell motility through p-ERK1/2/Cx43 reduction. PLoS One 2022; 17:e0279912. [PMID: 36584213 PMCID: PMC9803278 DOI: 10.1371/journal.pone.0279912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/18/2022] [Indexed: 01/01/2023] Open
Abstract
StarD7 belongs to START protein family involved in lipid traffic, metabolism, and signaling events. Its precursor, StarD7.I which is important for mitochondrial homeostasis, is processed to the StarD7.II isoform that lacks the mitochondrial targeting sequence and is mainly released to the cytosol. StarD7 knockdown interferes with cell migration by an unknown mechanism. Here, we demonstrate that StarD7 silencing decreased connexin 43 (Cx43), integrin β1, and p-ERK1/2 expression in the non-tumoral migratory HTR-8/SVneo cells. StarD7-deficient cells exhibited Golgi disruption and reduced competence to reorient the microtubule-organizing center. The migratory capacity of StarD7-silenced cells was reestablished when Cx43 level was resettled, while p-ERK1/2 expression remained low. Importantly, ectopic expression of the StarD7.II isoform not only restored cell migration but also ERK1/2, Cx43, and integrin β1 expression. Thus, StarD7 is implicated in cell migration through an ERK1/2/Cx43 dependent mechanism but independent of the StarD7.I function in the mitochondria.
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Affiliation(s)
- Mariano Cruz Del Puerto
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - María Laura Rojas
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - Ana Cristina Racca
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - Lucille Tihomirova Kourdova
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - Andrea Lis Miranda
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - Graciela Panzetta-Dutari
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - Susana Genti-Raimondi
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
| | - Jésica Belén Flores-Martín
- Departamento de Bioquímica Clínica, Universidad Nacional de Córdoba, Facultad de Ciencias Químicas, Ciudad Universitaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Ciudad Universitaria, Córdoba, Argentina
- * E-mail:
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18
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Zolfaghari S, Kaasbøll OJ, Monsen VT, Sredic B, Hagelin EMV, Attramadal H. The carboxyl-terminal TSP1-homology domain is the biologically active effector peptide of matricellular protein CCN5 that counteracts profibrotic CCN2. J Biol Chem 2022; 299:102803. [PMID: 36529291 PMCID: PMC9860493 DOI: 10.1016/j.jbc.2022.102803] [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: 06/27/2022] [Revised: 12/02/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Cellular Communication Network (CCN) proteins have multimodular structures important for their roles in cellular responses associated with organ development and tissue homeostasis. CCN2 has previously been reported to be secreted as a preproprotein that requires proteolytic activation to release its bioactive carboxyl-terminal fragment. Here, our goal was to resolve whether CCN5, a divergent member of the CCN family with converse functions relative to CCN2, releases the TSP1 homology domain as its bioactive signaling entity. The recombinant CCN5 or CCN3 TSP1 homology domains were produced in ExpiCHO-S or DG44 CHO cells as secretory fusion proteins appended to the carboxyl-terminal end of His-Halo-Sumo or amino-terminal end of human albumin and purified from the cell culture medium. We tested these fusion proteins in various phosphokinase signaling pathways or cell physiologic assays. Fusion proteins with the CCN5 TSP1 domain inhibited key signaling pathways previously reported to be stimulated by CCN2, irrespective of fusion partner. The fusion proteins also efficiently inhibited CCN1/2-stimulated cell migration and gap closure following scratch wound of fibroblasts. Fusion protein with the CCN3 TSP1 domain inhibited these functions with similar efficacy and potency as that of the CCN5 TSP1 domain. The CCN5 TSP1 domain also recapitulated a positive regulatory function previously assigned to full-length CCN5, that is, induction of estrogen receptor-α mRNA expression in triple negative MDA-MB-231 mammary adenocarcinoma cells and inhibited epithelial-to-mesenchymal transition and CCN2-induced mammosphere formation of MCF-7 adenocarcinoma cells. In conclusion, the CCN5 TSP1 domain is the bioactive entity that confers the biologic functions of unprocessed CCN5.
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Affiliation(s)
- Sima Zolfaghari
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | | | - Vivi T. Monsen
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Bojana Sredic
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway
| | | | - Håvard Attramadal
- Institute for Surgical Research, Oslo University Hospital, Oslo, Norway,Institute of Clinical Medicine, University of Oslo, Oslo, Norway,For correspondence: Håvard Attramadal
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The Role of Aldose Reductase in Beta-Amyloid-Induced Microglia Activation. Int J Mol Sci 2022; 23:ijms232315088. [PMID: 36499422 PMCID: PMC9739496 DOI: 10.3390/ijms232315088] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/28/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022] Open
Abstract
The occurrence of Alzheimer's disease has been associated with the accumulation of beta-amyloid (β-amyloid) plaques. These plaques activate microglia to secrete inflammatory molecules, which damage neurons in the brain. Thus, understanding the underlying mechanism of microglia activation can provide a therapeutic strategy for alleviating microglia-induced neuroinflammation. The aldose reductase (AR) enzyme catalyzes the reduction of glucose to sorbitol in the polyol pathway. In addition to mediating diabetic complications in hyperglycemic environments, AR also helps regulate inflammation in microglia. However, little is known about the role of AR in β-amyloid-induced inflammation in microglia and subsequent neuronal death. In this study, we confirmed that AR inhibition attenuates increased β-amyloid-induced reactive oxygen species and tumor necrosis factor α secretion by suppressing ERK signaling in BV2 cells. In addition, we are the first to report that AR inhibition reduced the phagocytotic capability and cell migration of BV2 cells in response to β-amyloid. To further investigate the protective role of the AR inhibitor sorbinil in neurons, we co-cultured β-amyloid-induced microglia with stem cell-induced neurons. sorbinil ameliorated neuronal damage in both cells in the co-culture system. In summary, our findings reveal AR regulation of microglia activation as a novel therapeutic target for Alzheimer's disease.
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20
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Bao L, Festa F, Hirschler-Laszkiewicz I, Keefer K, Wang HG, Cheung JY, Miller BA. The human ion channel TRPM2 modulates migration and invasion in neuroblastoma through regulation of integrin expression. Sci Rep 2022; 12:20544. [PMID: 36446940 PMCID: PMC9709080 DOI: 10.1038/s41598-022-25138-w] [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: 05/29/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022] Open
Abstract
Transient receptor potential channel TRPM2 is highly expressed in many cancers and involved in regulation of key physiological processes including mitochondrial function, bioenergetics, and oxidative stress. In Stage 4 non-MYCN amplified neuroblastoma patients, high TRPM2 expression is associated with worse outcome. Here, neuroblastoma cells with high TRPM2 expression demonstrated increased migration and invasion capability. RNA sequencing, RT-qPCR, and Western blotting demonstrated that the mechanism involved significantly greater expression of integrins α1, αv, β1, and β5 in cells with high TRPM2 expression. Transcription factors HIF-1α, E2F1, and FOXM1, which bind promoter/enhancer regions of these integrins, were increased in cells with high TRPM2 expression. Subcellular fractionation confirmed high levels of α1, αv, and β1 membrane localization and co-immunoprecipitation confirmed the presence of α1β1, αvβ1, and αvβ5 complexes. Inhibitors of α1β1, αvβ1, and αvβ5 complexes significantly reduced migration and invasion in cells highly expressing TRPM2, confirming their functional role. Increased pAktSer473 and pERKThr202/Tyr204, which promote migration through mechanisms including integrin activation, were found in cells highly expressing TRPM2. TRPM2 promotes migration and invasion in neuroblastoma cells with high TRPM2 expression through modulation of integrins together with enhancing cell survival, negatively affecting patient outcome and providing rationale for TRPM2 inhibition in anti-neoplastic therapy.
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Affiliation(s)
- Lei Bao
- grid.29857.310000 0001 2097 4281Departments of Pediatrics, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA
| | - Fernanda Festa
- grid.29857.310000 0001 2097 4281Departments of Pediatrics, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA ,grid.29857.310000 0001 2097 4281Departments of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA
| | - Iwona Hirschler-Laszkiewicz
- grid.29857.310000 0001 2097 4281Departments of Pediatrics, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA
| | - Kerry Keefer
- grid.29857.310000 0001 2097 4281Departments of Pediatrics, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA
| | - Hong-Gang Wang
- grid.29857.310000 0001 2097 4281Departments of Pediatrics, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA ,grid.29857.310000 0001 2097 4281Departments of Pharmacology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA
| | - Joseph Y. Cheung
- grid.62560.370000 0004 0378 8294Renal Medicine, Brigham and Women’s Hospital, Boston, MA 02115 USA
| | - Barbara A. Miller
- grid.29857.310000 0001 2097 4281Departments of Pediatrics, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA ,grid.29857.310000 0001 2097 4281Departments of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, P.O. Box 850, Hershey, PA 17033 USA
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21
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Peters V, Deretic N, Choi K, Gold MR. ERK contributes to B cell receptor-induced cell spreading in the A20 mouse B cell line. MICROPUBLICATION BIOLOGY 2022; 2022:10.17912/micropub.biology.000665. [PMID: 36506348 PMCID: PMC9729986 DOI: 10.17912/micropub.biology.000665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/01/1970] [Accepted: 11/21/2022] [Indexed: 12/15/2022]
Abstract
B cells provide protective immunity by secreting antibodies. When a B cell encounters its specific antigen, B-cell receptor (BCR) signaling initiates actin remodeling. This allows B cells to spread on antigen-bearing surfaces and find more antigen, which increases BCR signaling and facilitates B cell activation. The BCR activates multiple signaling pathways that target actin-regulatory proteins. Although the extracellular signal-regulated kinases ERK1 and ERK2 regulate actin-dependent processes in adherent cells, their role in BCR-induced actin remodeling had not been investigated. Here, we show that targeting ERK with chemical inhibitors or siRNA inhibits BCR-induced spreading in a murine B cell line.
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Affiliation(s)
- Victoria Peters
- Department of Microbiology & Immunology and the Life Sciences Institute, University of British Columbia, Vancouver, Canada
| | - Nikola Deretic
- Department of Microbiology & Immunology and the Life Sciences Institute, University of British Columbia, Vancouver, Canada
| | - Kate Choi
- Department of Microbiology & Immunology and the Life Sciences Institute, University of British Columbia, Vancouver, Canada
| | - Michael R Gold
- Department of Microbiology & Immunology and the Life Sciences Institute, University of British Columbia, Vancouver, Canada
,
Correspondence to: Michael R Gold (
)
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22
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Hinneh JA, Gillis JL, Moore NL, Butler LM, Centenera MM. The role of RHAMM in cancer: Exposing novel therapeutic vulnerabilities. Front Oncol 2022; 12:982231. [PMID: 36033439 PMCID: PMC9400171 DOI: 10.3389/fonc.2022.982231] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
Receptor for hyaluronic acid-mediated motility (RHAMM) is a cell surface receptor for hyaluronic acid that is critical for cell migration and a cell cycle protein involved in microtubule assembly and stability. These functions of RHAMM are required for cellular stress responses and cell cycle progression but are also exploited by tumor cells for malignant progression and metastasis. RHAMM is often overexpressed in tumors and is an independent adverse prognostic factor for a number of cancers such as breast and prostate. Interestingly, pharmacological or genetic inhibition of RHAMM in vitro and in vivo ablates tumor invasiveness and metastatic spread, implicating RHAMM as a potential therapeutic target to restrict tumor growth and improve patient survival. However, RHAMM’s pro-tumor activity is dependent on its subcellular distribution, which complicates the design of RHAMM-directed therapies. An alternative approach is to identify downstream signaling pathways that mediate RHAMM-promoted tumor aggressiveness. Herein, we discuss the pro-tumoral roles of RHAMM and elucidate the corresponding regulators and signaling pathways mediating RHAMM downstream events, with a specific focus on strategies to target the RHAMM signaling network in cancer cells.
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Affiliation(s)
- Josephine A. Hinneh
- South Australian Immunogenomics Cancer Institute and Adelaide Medical School, Adelaide, SA, Australia
- Freemason’s Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Joanna L. Gillis
- South Australian Immunogenomics Cancer Institute and Adelaide Medical School, Adelaide, SA, Australia
- Precision Cancer Medicine, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Nicole L. Moore
- South Australian Immunogenomics Cancer Institute and Adelaide Medical School, Adelaide, SA, Australia
- Precision Cancer Medicine, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Lisa M. Butler
- South Australian Immunogenomics Cancer Institute and Adelaide Medical School, Adelaide, SA, Australia
- Freemason’s Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- *Correspondence: Lisa M. Butler, ; Margaret M. Centenera,
| | - Margaret M. Centenera
- South Australian Immunogenomics Cancer Institute and Adelaide Medical School, Adelaide, SA, Australia
- Freemason’s Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, SA, Australia
- Precision Cancer Medicine, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
- *Correspondence: Lisa M. Butler, ; Margaret M. Centenera,
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23
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Fauser J, Huyot V, Matsche J, Szynal BN, Alexeev Y, Kota P, Karginov AV. Dissecting protein tyrosine phosphatase signaling by engineered chemogenetic control of its activity. J Cell Biol 2022; 221:e202111066. [PMID: 35829702 PMCID: PMC9284425 DOI: 10.1083/jcb.202111066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 05/06/2022] [Accepted: 06/22/2022] [Indexed: 01/16/2023] Open
Abstract
Protein tyrosine phosphatases (PTPases) are critical mediators of dynamic cell signaling. A tool capable of identifying transient signaling events downstream of PTPases is essential to understand phosphatase function on a physiological time scale. We report a broadly applicable protein engineering method for allosteric regulation of PTPases. This method enables dissection of transient events and reconstruction of individual signaling pathways. Implementation of this approach for Shp2 phosphatase revealed parallel MAPK and ROCK II dependent pathways downstream of Shp2, mediating transient cell spreading and migration. Furthermore, we show that the N-SH2 domain of Shp2 regulates MAPK-independent, ROCK II-dependent cell migration. Engineered targeting of Shp2 activity to different protein complexes revealed that Shp2-FAK signaling induces cell spreading whereas Shp2-Gab1 or Shp2-Gab2 mediates cell migration. We identified specific transient morphodynamic processes induced by Shp2 and determined the role of individual signaling pathways downstream of Shp2 in regulating these events. Broad application of this approach is demonstrated by regulating PTP1B and PTP-PEST phosphatases.
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Affiliation(s)
- Jordan Fauser
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL
| | - Vincent Huyot
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL
| | - Jacob Matsche
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL
| | - Barbara N. Szynal
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL
| | | | - Pradeep Kota
- Marsico Lung Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Andrei V. Karginov
- Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL
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24
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Mesquida-Veny F, Martínez-Torres S, Del Rio JA, Hervera A. Nociception-Dependent CCL21 Induces Dorsal Root Ganglia Axonal Growth via CCR7-ERK Activation. Front Immunol 2022; 13:880647. [PMID: 35911704 PMCID: PMC9331658 DOI: 10.3389/fimmu.2022.880647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 05/25/2022] [Indexed: 11/30/2022] Open
Abstract
While chemokines were originally described for their ability to induce cell migration, many studies show how these proteins also take part in many other cell functions, acting as adaptable messengers in the communication between a diversity of cell types. In the nervous system, chemokines participate both in physiological and pathological processes, and while their expression is often described on glial and immune cells, growing evidence describes the expression of chemokines and their receptors in neurons, highlighting their potential in auto- and paracrine signalling. In this study we analysed the role of nociception in the neuronal chemokinome, and in turn their role in axonal growth. We found that stimulating TRPV1+ nociceptors induces a transient increase in CCL21. Interestingly we also found that CCL21 enhances neurite growth of large diameter proprioceptors in vitro. Consistent with this, we show that proprioceptors express the CCL21 receptor CCR7, and a CCR7 neutralizing antibody dose-dependently attenuates CCL21-induced neurite outgrowth. Mechanistically, we found that CCL21 binds locally to its receptor CCR7 at the growth cone, activating the downstream MEK-ERK pathway, that in turn activates N-WASP, triggering actin filament ramification in the growth cone, resulting in increased axonal growth.
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Affiliation(s)
- Francina Mesquida-Veny
- Molecular and Cellular Neurobiotechnology, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, Barcelona, Spain
- Network Centre of Biomedical Research of Neurodegenerative Diseases (CIBERNED), Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
- Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Sara Martínez-Torres
- Molecular and Cellular Neurobiotechnology, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, Barcelona, Spain
- Network Centre of Biomedical Research of Neurodegenerative Diseases (CIBERNED), Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
- Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Jose Antonio Del Rio
- Molecular and Cellular Neurobiotechnology, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, Barcelona, Spain
- Network Centre of Biomedical Research of Neurodegenerative Diseases (CIBERNED), Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
- Institute of Neuroscience, University of Barcelona, Barcelona, Spain
| | - Arnau Hervera
- Molecular and Cellular Neurobiotechnology, Institute for Bioengineering of Catalonia (IBEC), Barcelona, Spain
- Department of Cell Biology, Physiology and Immunology, University of Barcelona, Barcelona, Spain
- Network Centre of Biomedical Research of Neurodegenerative Diseases (CIBERNED), Institute of Health Carlos III, Ministry of Economy and Competitiveness, Madrid, Spain
- Institute of Neuroscience, University of Barcelona, Barcelona, Spain
- *Correspondence: Arnau Hervera,
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25
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Ng EFY, Kaida A, Nojima H, Miura M. Roles of IGFBP-3 in cell migration and growth in an endophytic tongue squamous cell carcinoma cell line. Sci Rep 2022; 12:11503. [PMID: 35798794 PMCID: PMC9262895 DOI: 10.1038/s41598-022-15737-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/28/2022] [Indexed: 11/20/2022] Open
Abstract
Insulin-like growth factor binding protein-3 (IGFBP-3) is a member of the IGFBP family that has high affinity for IGFs and functions as either an oncogene or tumor suppressor in various types of cancer. We previously found that IGFBP3 mRNA levels are higher in endophytic-type human tongue squamous cell carcinoma (TSCC) that is more invasive and more prone to metastasis than exophytic and superficial types. This finding prompted us to investigate the roles of IGFBP-3 in TSCC using SAS cells, which were originally derived from endophytic-type TSCC. Specifically, we used SAS cells that express a fluorescent ubiquitination-based cell-cycle indicator (Fucci). RNA-sequencing analysis indicated that IGFBP-3 is associated with cell migration and cell growth. In fact, IGFBP-3 knockdown downregulates cell migration and causes cells to arrest in G1. This migratory potential appears to be cell cycle–independent. IGFBP-3 knockdown also reduced levels of secreted IGFBP-3; however, decreased migratory potential was not rescued by exogenous recombinant human IGFBP-3. Furthermore, ERK activity was downregulated by IGFBP-3 depletion, which suggests that MEK/ERK signaling may be involved in IGFBP-3-mediated cell migration. We therefore conclude that intracellular IGFBP-3 enhances cell migration independently of the cell cycle in TSCC with a higher metastatic potential.
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Affiliation(s)
- Esther Feng Ying Ng
- Department of Oral Radiation Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical & Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Atsushi Kaida
- Department of Oral Radiation Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical & Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
| | - Hitomi Nojima
- Department of Oral Radiation Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical & Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Masahiko Miura
- Department of Oral Radiation Oncology, Graduate School of Medical and Dental Sciences, Tokyo Medical & Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
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26
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Aloisio FM, Barber DL. Arp2/3 complex activity is necessary for mouse ESC differentiation, times formative pluripotency, and enables lineage specification. Stem Cell Reports 2022; 17:1318-1333. [PMID: 35658973 PMCID: PMC9214060 DOI: 10.1016/j.stemcr.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/28/2022] Open
Abstract
Mouse embryonic stem cells (mESCs), a model for differentiation into primed epiblast-like cells (EpiLCs), have revealed transcriptional and epigenetic control of early embryonic development. The control and significance of morphological changes, however, remain less defined. We show marked changes in morphology and actin architectures during differentiation that depend on Arp2/3 complex but not formin activity. Inhibiting Arp2/3 complex activity pharmacologically or genetically does not block exit from naive pluripotency, but attenuates increases in EpiLC markers. We find that inhibiting Arp2/3 complex activity delays formative pluripotency and causes globally defective lineage specification as indicated by RNA sequencing, with significant effects on TBX3-depedendent transcriptional programs. We also identify two previously unreported indicators of mESC differentiation, namely, MRTF and FHL2, which have inverse Arp2/3 complex-dependent nuclear translocation. Our findings on Arp2/3 complex activity in differentiation and the established role of formins in EMT indicate that these two actin nucleators regulate distinct modes of epithelial plasticity.
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Affiliation(s)
- Francesca M Aloisio
- Department of Cell & Tissue Biology, University of California San Francisco, Box 0512, 513 Parnassus Ave., San Francisco, CA 94143, USA
| | - Diane L Barber
- Department of Cell & Tissue Biology, University of California San Francisco, Box 0512, 513 Parnassus Ave., San Francisco, CA 94143, USA.
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27
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Ju Z, Thomas TN, Chiu YJ, Yamanouchi S, Yoshida Y, Abe JI, Takahashi A, Wang J, Fujiwara K, Hada M. Adaptation and Changes in Actin Dynamics and Cell Motility as Early Responses of Cultured Mammalian Cells to Altered Gravitational Vector. Int J Mol Sci 2022; 23:6127. [PMID: 35682810 PMCID: PMC9181735 DOI: 10.3390/ijms23116127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/27/2022] [Accepted: 05/27/2022] [Indexed: 02/05/2023] Open
Abstract
Cultured mammalian cells have been shown to respond to microgravity (μG), but the molecular mechanism is still unknown. The study we report here is focused on molecular and cellular events that occur within a short period of time, which may be related to gravity sensing by cells. Our assumption is that the gravity-sensing mechanism is activated as soon as cells are exposed to any new gravitational environment. To study the molecular events, we exposed cells to simulated μG (SμG) for 15 min, 30 min, 1 h, 2 h, 4 h, and 8 h using a three-dimensional clinostat and made cell lysates, which were then analyzed by reverse phase protein arrays (RPPAs) using a panel of 453 different antibodies. By comparing the RPPA data from cells cultured at 1G with those of cells under SμG, we identified a total of 35 proteomic changes in the SμG samples and found that 20 of these changes took place, mostly transiently, within 30 min. In the 4 h and 8 h samples, there were only two RPPA changes, suggesting that the physiology of these cells is practically indistinguishable from that of cells cultured at 1 G. Among the proteins involved in the early proteomic changes were those that regulate cell motility and cytoskeletal organization. To see whether changes in gravitational environment indeed activate cell motility, we flipped the culture dish upside down (directional change in gravity vector) and studied cell migration and actin cytoskeletal organization. We found that compared with cells grown right-side up, upside-down cells transiently lost stress fibers and rapidly developed lamellipodia, which was supported by increased activity of Ras-related C3 botulinum toxin substrate 1 (Rac1). The upside-down cells also increased their migratory activity. It is possible that these early molecular and cellular events play roles in gravity sensing by mammalian cells. Our study also indicated that these early responses are transient, suggesting that cells appear to adapt physiologically to a new gravitational environment.
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Affiliation(s)
- Zhenlin Ju
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Tamlyn N. Thomas
- Department of Cardiology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.N.T.); (J.-i.A.)
- Aab Cardiovascular Research Institute, University of Rochester Medical School, Rochester, NY 14642, USA;
| | - Yi-Jen Chiu
- Aab Cardiovascular Research Institute, University of Rochester Medical School, Rochester, NY 14642, USA;
| | - Sakuya Yamanouchi
- Gunma University Heavy Ion Medical Center, Maebashi 371-8511, Japan; (S.Y.); (Y.Y.); (A.T.)
| | - Yukari Yoshida
- Gunma University Heavy Ion Medical Center, Maebashi 371-8511, Japan; (S.Y.); (Y.Y.); (A.T.)
| | - Jun-ichi Abe
- Department of Cardiology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.N.T.); (J.-i.A.)
| | - Akihisa Takahashi
- Gunma University Heavy Ion Medical Center, Maebashi 371-8511, Japan; (S.Y.); (Y.Y.); (A.T.)
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Keigi Fujiwara
- Department of Cardiology, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (T.N.T.); (J.-i.A.)
| | - Megumi Hada
- Radiation Institute for Science & Engineering, Prairie View A&M University, Prairie View, TX 77446, USA;
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28
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Protocadherin 15 suppresses oligodendrocyte progenitor cell proliferation and promotes motility through distinct signalling pathways. Commun Biol 2022; 5:511. [PMID: 35637313 PMCID: PMC9151716 DOI: 10.1038/s42003-022-03470-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 05/10/2022] [Indexed: 12/15/2022] Open
Abstract
Oligodendrocyte progenitor cells (OPCs) express protocadherin 15 (Pcdh15), a member of the cadherin superfamily of transmembrane proteins. Little is known about the function of Pcdh15 in the central nervous system (CNS), however, Pcdh15 expression can predict glioma aggression and promote the separation of embryonic human OPCs immediately following a cell division. Herein, we show that Pcdh15 knockdown significantly increases extracellular signal-related kinase (ERK) phosphorylation and activation to enhance OPC proliferation in vitro. Furthermore, Pcdh15 knockdown elevates Cdc42-Arp2/3 signalling and impairs actin kinetics, reducing the frequency of lamellipodial extrusion and slowing filopodial withdrawal. Pcdh15 knockdown also reduces the number of processes supported by each OPC and new process generation. Our data indicate that Pcdh15 is a critical regulator of OPC proliferation and process motility, behaviours that characterise the function of these cells in the healthy CNS, and provide mechanistic insight into the role that Pcdh15 might play in glioma progression. Protocadherin 15 promotes lamellipodial and filopodial dynamics in oligodendrocyte progenitor cells by regulating Cdc42-Arp2/3 activity, but also suppresses ERK1/2 phosphorylation to reduce proliferation.
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29
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Tumor suppressor p53 restrains cancer cell dissemination by modulating mitochondrial dynamics. Oncogenesis 2022; 11:26. [PMID: 35589683 PMCID: PMC9120037 DOI: 10.1038/s41389-022-00401-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 01/11/2023] Open
Abstract
Tumor suppressor p53 plays a central role in preventing tumorigenesis. Here, we unravel how p53 modulates mitochondrial dynamics to restrain the metastatic properties of cancer cells. p53 inhibits the mammalian target of rapamycin complex 1 (mTORC1) signaling to attenuate the protein level of mitochondrial fission process 1 (MTFP1), which fosters the pro-fission dynamin-related protein 1 (Drp1) phosphorylation. This regulatory mechanism allows p53 to restrict cell migration and invasion governed by Drp1-mediated mitochondrial fission. Downregulating p53 expression or elevating the molecular signature of mitochondrial fission correlates with aggressive tumor phenotypes and poor prognosis in cancer patients. Upon p53 loss, exaggerated mitochondrial fragmentation stimulates the activation of the extracellular signal-regulated kinase 1/2 (ERK1/2) signaling resulting in epithelial-to-mesenchymal transition (EMT)-like changes in cell morphology, accompanied by accelerated matrix metalloproteinase 9 (MMP9) expression and invasive cell migration. Notably, blocking the activation of mTORC1/MTFP1/Drp1/ERK1/2 axis completely abolishes the p53 deficiency-driven cellular morphological switch, MMP9 expression, and cancer cell dissemination. Our findings unveil a hitherto unrecognized mitochondria-dependent molecular mechanism underlying the metastatic phenotypes of p53-compromised cancers.
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30
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27-Hydroxycholesterol induces expression of zonula occludens-1 in monocytic cells via multiple kinases pathways. Sci Rep 2022; 12:8213. [PMID: 35581378 PMCID: PMC9114403 DOI: 10.1038/s41598-022-12416-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 05/11/2022] [Indexed: 12/03/2022] Open
Abstract
Zonula occludens (ZO)-1, a tight-junction protein (TJP), is expressed in dendritic cells (DCs) but not in monocytes, and 27-hydroxycholesterol (27OHChol) drives the differentiation of monocytes into DCs. Because the effects of 27OHChol on ZO-1 are not yet clearly defined, we investigated whether 27OHChol induces expression of the TJP. The treatment of human THP-1 monocytic cells with 27OHChol resulted in the elevated transcript levels of ZO-1 but not of ZO-2 or -3. 27OHChol increased the total amount of ZO-1 protein in the cells as well as its level on the cells surface. Cholesterol, however, did not influence expression of ZO-1. And, the expression of ZO-1 protein was mediated by endoplasmic reticulum (ER)-to-Golgi body transport system. Pharmacological kinase inhibition with LY294002 (a PI3K inhibitor), U0126 (a MEK/ERK inhibitor), or PP2 (a Src family kinase inhibitor) resulted in impaired ZO-1 expression at both transcript and protein levels. Drugs that are reported to suppress DC differentiation also inhibited 27OHChol-mediated expression and the localization of ZO-1, indicating the coincidence of ZO-1 upregulation and DC differentiation. These results suggest that ZO-1 is differentially expressed while monocytes differentiate into DCs in the presence of 27OHChol via pathways in which distinct signaling molecules are involved.
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31
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Oncel S, Basson MD. Gut homeostasis, injury, and healing: New therapeutic targets. World J Gastroenterol 2022; 28:1725-1750. [PMID: 35633906 PMCID: PMC9099196 DOI: 10.3748/wjg.v28.i17.1725] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/12/2021] [Accepted: 03/27/2022] [Indexed: 02/06/2023] Open
Abstract
The integrity of the gastrointestinal mucosa plays a crucial role in gut homeostasis, which depends upon the balance between mucosal injury by destructive factors and healing via protective factors. The persistence of noxious agents such as acid, pepsin, nonsteroidal anti-inflammatory drugs, or Helicobacter pylori breaks down the mucosal barrier and injury occurs. Depending upon the size and site of the wound, it is healed by complex and overlapping processes involving membrane resealing, cell spreading, purse-string contraction, restitution, differentiation, angiogenesis, and vasculogenesis, each modulated by extracellular regulators. Unfortunately, the gut does not always heal, leading to such pathology as peptic ulcers or inflammatory bowel disease. Currently available therapeutics such as proton pump inhibitors, histamine-2 receptor antagonists, sucralfate, 5-aminosalicylate, antibiotics, corticosteroids, and immunosuppressants all attempt to minimize or reduce injury to the gastrointestinal tract. More recent studies have focused on improving mucosal defense or directly promoting mucosal repair. Many investigations have sought to enhance mucosal defense by stimulating mucus secretion, mucosal blood flow, or tight junction function. Conversely, new attempts to directly promote mucosal repair target proteins that modulate cytoskeleton dynamics such as tubulin, talin, Ehm2, filamin-a, gelsolin, and flightless I or that proteins regulate focal adhesions dynamics such as focal adhesion kinase. This article summarizes the pathobiology of gastrointestinal mucosal healing and reviews potential new therapeutic targets.
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Affiliation(s)
- Sema Oncel
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
| | - Marc D Basson
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
- Department of Surgery, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
- Department of Pathology, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND 58202, United States
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32
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Hydroxyapatite Use in Spine Surgery—Molecular and Clinical Aspect. MATERIALS 2022; 15:ma15082906. [PMID: 35454598 PMCID: PMC9030649 DOI: 10.3390/ma15082906] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 04/03/2022] [Accepted: 04/12/2022] [Indexed: 12/12/2022]
Abstract
Hydroxyapatite possesses desirable properties as a scaffold in tissue engineering: it is biocompatible at a site of implantation, and it is degradable to non-toxic products. Moreover, its porosity enables infiltration of cells, nutrients and waste products. The outcome of hydroxyapatite implantation highly depends on the extent of the host immune response. Authors emphasise major roles of the chemical, morphological and physical properties of the surface of biomaterial used. A number of techniques have been applied to transform the theoretical osteoconductive features of HAp into spinal fusion systems—from integration of HAp with autograft to synthetic intervertebral implants. The most popular uses of HAp in spine surgery include implants (ACDF), bone grafts in posterolateral lumbar fusion and transpedicular screws coating. In the past, autologous bone graft has been used as an intervertebral cage in ACDF. Due to the morbidity related to autograft harvesting from the iliac bone, a synthetic cage with osteoconductive material such as hydroxyapatite seems to be a good alternative. Regarding posterolateral lumbar fusion, it requires the graft to induce new bone growth and reinforce fusion between the vertebrae. Hydroxyapatite formulations have shown good results in that field. Moreover, the HAp coating has proven to be an efficient method of increasing screw fixation strength. It can decrease the risk of complications such as screw loosening after pedicle screw fixation in osteoporotic patients. The purpose of this literature review is to describe in vivo reaction to HAp implants and to summarise its current application in spine surgery.
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33
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Inoue M, Horiuchi K, Susa M, Taguchi E, Ishizaka T, Rikitake H, Matsuhashi Y, Chiba K. Trabectedin suppresses osteosarcoma pulmonary metastasis in a mouse tumor xenograft model. J Orthop Res 2022; 40:945-953. [PMID: 34057747 DOI: 10.1002/jor.25105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/27/2021] [Accepted: 05/25/2021] [Indexed: 02/04/2023]
Abstract
Osteosarcoma (OS) is the most common primary bone tumor that mainly affects adolescents and young adults. Although standard treatment modality can achieve up to 60%-70% 5-year survival rate, there has not been any substantial improvement over the past four decades. Furthermore, those presenting with pulmonary metastatic lesions often undergo a highly unfavorable clinical course. Therefore, there is a severely unmet clinical need to provide a more effective treatment for patients with OS. In this study, we show that trabectedin (TBD), a chemotherapeutic agent approved for soft tissue sarcomas, significantly suppresses pulmonary metastasis in a mouse OS xenograft model. In vitro experiments revealed that TBD suppresses cell migration potentially by downregulating the activity of ERK1/2, intracellular molecules that are critically involved in the regulation of cell motility. Collectively, our data may provide a basis for further investigation of TBD on the potential use for OS patients who are at great risk of pulmonary metastasis.
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Affiliation(s)
- Masahiro Inoue
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Keisuke Horiuchi
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
- Department of Orthopedic Surgery, Keio University School of Medicine, Tokyo, Japan
| | - Michiro Susa
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Eiko Taguchi
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Takahiro Ishizaka
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Hajime Rikitake
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Yusuke Matsuhashi
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Kazuhiro Chiba
- Department of Orthopedic Surgery, National Defense Medical College, Tokorozawa, Saitama, Japan
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In Vitro Models of Bone Marrow Remodelling and Immune Dysfunction in Space: Present State and Future Directions. Biomedicines 2022; 10:biomedicines10040766. [PMID: 35453515 PMCID: PMC9031916 DOI: 10.3390/biomedicines10040766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/22/2022] [Accepted: 03/22/2022] [Indexed: 12/12/2022] Open
Abstract
Spaceflight affects the body on every level. Reports on astronaut health identify bone marrow remodelling and dysfunction of the innate immune system as significant health risks of long-term habitation in space. Microgravity-induced alterations of the bone marrow induce physical changes to the bone marrow stem cell niche. Downstream effects on innate immunity are expected due to impaired hematopoiesis and myelopoiesis. To date, few studies have investigated these effects in real microgravity and the sparsely available literature often reports contrasting results. This emphasizes a need for the development of physiologically relevant in vitro models of the bone marrow stem cell niche, capable of delivering appropriate sample sizes for robust statistics. Here, we review recent findings on the impact of spaceflight conditions on innate immunity in in vitro and animal models and discusses the latest in vitro models of the bone marrow stem cell niche and their potential translatability to gravitational biology research.
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Łukowicz K, Zagrajczuk B, Truchan K, Niedzwiedzki Ł, Cholewa-Kowalska K, Osyczka AM. Chemical Compounds Released from Specific Osteoinductive Bioactive Materials Stimulate Human Bone Marrow Mesenchymal Stem Cell Migration. Int J Mol Sci 2022; 23:ijms23052598. [PMID: 35269740 PMCID: PMC8909964 DOI: 10.3390/ijms23052598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/15/2022] [Accepted: 02/23/2022] [Indexed: 01/12/2023] Open
Abstract
In this work, a poly(L-lactide-co-glycolide) (PLGA)-based composite was enriched with one of the following sol-gel bioactive glasses (SBG) at 50 wt.%: A1—40 mol% SiO2, 60 mol% CaO, CaO/SiO2 ratio of 1.50; S1—80 mol% SiO2, 20 mol% CaO, CaO/SiO2 ratio of 0.25; A2—40 mol% SiO2, 54 mol% CaO, 6 mol% P2O5, CaO/SiO2 ratio of 1.35; S2—80 mol% SiO2,16 mol% CaO, 4 mol% P2O5, CaO/SiO2 ratio of 0.20. The composites and PLGA control sheets were then soaked for 24 h in culture media, and the obtained condition media (CM) were used to treat human bone marrow stromal cells (hBMSCs) for 72 h. All CMs from the composites increased ERK 1/2 activity vs. the control PLGA CM. However, expressions of cell migration-related c-Fos, osteopontin, matrix metalloproteinase-2, C-X-C chemokine receptor type 4, vascular endothelial growth factor, and bone morphogenetic protein 2 were significantly increased only in cells treated with the CM from the A1/PLGA composite. This CM also significantly increased the rate of human BMSC migration but did not affect cell metabolic activity. These results indicate important biological markers that are upregulated by products released from the bioactive composites of a specific chemical composition, which may eventually prompt osteoprogenitor cells to colonize the bioactive material and accelerate the process of tissue regeneration.
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Affiliation(s)
- Krzysztof Łukowicz
- Department Biology and Cell Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland; (K.Ł.); (K.T.)
| | - Barbara Zagrajczuk
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland; (B.Z.); (K.C.-K.)
| | - Karolina Truchan
- Department Biology and Cell Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland; (K.Ł.); (K.T.)
| | - Łukasz Niedzwiedzki
- Department of Orthopedics and Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, Kopernika 19e, 31-501 Krakow, Poland;
| | - Katarzyna Cholewa-Kowalska
- Department of Glass Technology and Amorphous Coatings, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Mickiewicza Ave. 30, 30-059 Krakow, Poland; (B.Z.); (K.C.-K.)
| | - Anna M. Osyczka
- Department Biology and Cell Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387 Krakow, Poland; (K.Ł.); (K.T.)
- Correspondence:
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Li Y, Ou K, Wang Y, Luo L, Chen Z, Wu J. TLR9 agonist suppresses choroidal neovascularization by restricting endothelial cell motility via ERK/c-Jun pathway. Microvasc Res 2022; 141:104338. [PMID: 35150733 DOI: 10.1016/j.mvr.2022.104338] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/08/2022] [Accepted: 02/07/2022] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Choroidal neovascularization (CNV) is the feature of neovascular age-related macular degeneration (AMD). It has been demonstrated that inflammation plays a key role in the development of CNV. Here we aim to investigate how TLR9 agonist (CpG-ODN), one of the key regulators of inflammatory responses, suppresses CNV in vivo. MATERIALS AND METHODS The cell viability was assessed by MTT and EdU test after CpG-ODN treatment. Endothelial cells gap assay, tube formation assay and transwell assay were practiced to observe how CpG-ODN affected the endothelial cells functions. The choroidal explants and laser-induced CNV model were built to investigate how CpG-ODN suppressed angiogenesis. The ERK and c-Jun expression were evaluated to assess if CpG-ODN affected cell proliferation. Flow cytometry and qPCR was practiced to observe how CpG-ODN regulated cell proliferation. RESULTS Our data showed that CpG-ODN not only reduced CNV area in vivo, but also decreased the RPE damage. CpG-ODN inhibited endothelial cells from migration and forming tubes, while the effect was not toxic. EdU test and MTT test suggested that CpG-ODN inhibited endothelial cells proliferation. CpG-ODN significantly increased protein expression of phosphorylated c-Jun but reduced phosphorylated ERK in HUVECs, which was confirmed in ERK transfected 293T cells. JNK inhibitor abolished the suppression of endothelial cells migration and tube formation by CpG-ODN. The findings were also in agreement with the observation in CpG-ODN treated CNV eyes in vivo. The flow cytometry and qPCR data revealed that the suppression of cell motility by CpG-ODN was achieved by arresting endothelial cells cell cycle at G0/G1 phase. CONCLUSIONS Our study demonstrated that CpG-ODN suppressed endothelial cell motility by restricting the cell cycle progression at G0/G1 phase, the effect of which was achieved by interacting with ERK/c-Jun pathways.
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Affiliation(s)
- Youjian Li
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing, China
| | - Kepeng Ou
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing, China
| | - Yuwei Wang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
| | - Liying Luo
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
| | - Zhongzhu Chen
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing, China
| | - Jiahui Wu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China; Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China.
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Keen AN, Payne LA, Mehta V, Rice A, Simpson LJ, Pang KL, del Rio Hernandez A, Reader JS, Tzima E. Eukaryotic initiation factor 6 regulates mechanical responses in endothelial cells. J Cell Biol 2022; 221:e202005213. [PMID: 35024764 PMCID: PMC8763864 DOI: 10.1083/jcb.202005213] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/11/2021] [Accepted: 12/08/2021] [Indexed: 12/22/2022] Open
Abstract
The repertoire of extratranslational functions of components of the protein synthesis apparatus is expanding to include control of key cell signaling networks. However, very little is known about noncanonical functions of members of the protein synthesis machinery in regulating cellular mechanics. We demonstrate that the eukaryotic initiation factor 6 (eIF6) modulates cellular mechanobiology. eIF6-depleted endothelial cells, under basal conditions, exhibit unchanged nascent protein synthesis, polysome profiles, and cytoskeleton protein expression, with minimal effects on ribosomal biogenesis. In contrast, using traction force and atomic force microscopy, we show that loss of eIF6 leads to reduced stiffness and force generation accompanied by cytoskeletal and focal adhesion defects. Mechanistically, we show that eIF6 is required for the correct spatial mechanoactivation of ERK1/2 via stabilization of an eIF6-RACK1-ERK1/2-FAK mechanocomplex, which is necessary for force-induced remodeling. These results reveal an extratranslational function for eIF6 and a novel paradigm for how mechanotransduction, the cellular cytoskeleton, and protein translation constituents are linked.
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Affiliation(s)
- Adam N. Keen
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Luke A. Payne
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Vedanta Mehta
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Alistair Rice
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK
| | - Lisa J. Simpson
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Kar Lai Pang
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Armando del Rio Hernandez
- Cellular and Molecular Biomechanics Laboratory, Department of Bioengineering, Imperial College London, London, UK
| | - John S. Reader
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Ellie Tzima
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
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Zhao Y, Wang X, Liu Y, Wang HY, Xiang J. The effects of estrogen on targeted cancer therapy drugs. Pharmacol Res 2022; 177:106131. [DOI: 10.1016/j.phrs.2022.106131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/29/2022] [Accepted: 02/10/2022] [Indexed: 10/19/2022]
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Taurine Chloramine Inhibits Leukocyte Migration by Suppressing Actin Polymerization and Extracellular Signal-Regulated Kinase. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1370:51-61. [DOI: 10.1007/978-3-030-93337-1_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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40
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Samson SC, Khan AM, Mendoza MC. ERK signaling for cell migration and invasion. Front Mol Biosci 2022; 9:998475. [PMID: 36262472 PMCID: PMC9573968 DOI: 10.3389/fmolb.2022.998475] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/16/2022] [Indexed: 11/25/2022] Open
Abstract
The RAS - Extracellular signal-regulated kinase (RAS-ERK) pathway plays a conserved role in promoting cell migration and invasion. Growth factors, adhesion, and oncogenes activate ERK. While historically studied with respect to its control of cell proliferation and differentiation, the signaling pattern and effectors specific for cell migration are now coming to light. New advances in pathway probes have revealed how steady-state ERK activity fluctuates within individual cells and propagates to neighboring cells. We review new findings on the different modes of ERK pathway stimulation and how an increased baseline level of activity promotes single cell and collective migration and invasion. We discuss how ERK drives actin polymerization and adhesion turnover for edge protrusion and how cell contraction stimulates cell movement and ERK activity waves in epithelial sheets. With the steady development of new biosensors for monitoring spatial and temporal ERK activity, determining how cells individually interpret the multiple in vivo signals to ERK is within reach.
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Affiliation(s)
- Shiela C Samson
- Department of Oncological Sciences, University of Utah, Salt Lake City, UT, United States.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
| | - Akib M Khan
- Department of Oncological Sciences, University of Utah, Salt Lake City, UT, United States.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
| | - Michelle C Mendoza
- Department of Oncological Sciences, University of Utah, Salt Lake City, UT, United States.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, United States
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Zhao C, Zou T, Tang R, Zhu C. Placenta-specific 8 (PLAC8) mediates inflammation and mobility of the hPDLCs via MEK/ERK signaling pathway. Int Immunopharmacol 2021; 103:108459. [PMID: 34954560 DOI: 10.1016/j.intimp.2021.108459] [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: 11/05/2021] [Revised: 12/09/2021] [Accepted: 12/10/2021] [Indexed: 11/05/2022]
Abstract
BACKGROUND Placenta-specific 8 (PLAC8) is reported to regulate cellular functions in the progression of various diseases. However, its role in periodontitis is still unclear. METHODS Human periodontal ligament cells (hPDLCs) were treated with lipopolysaccharide of Porphyromonas Gingivalis (LPS-PG) to mimic periodontitis in vitro. Real-time quantitative polymerase chain reaction (RT-qPCR) was performed to measure the mRNA expression levels and western blot was for protein levels. Wound healing and transwell migration assays were performed to assess the cell mobility of hPDLCs. Both mRNA and protein levels of inflammatory cytokines including IFN-γ, IL-17, TNF-α, IL-4, IL-10 and IL-13 were accessed to evaluated process of periodontitis in vitro. Furthermore, the protein expressions of mitogen-activated protein kinase kinase (MEK), extracellular regulated protein kinase (ERK) and their phosphorylated products quantified by western blotting assay were determined to confirm the activation of the MEK/ERK signaling pathway. RESULTS The microarray analysis results showed that PLAC8 was most significantly downregulated in periodontium samples of patients with periodontitis, which participates in blood coagulation and integrin-mediated signaling pathway. PLAC8 was also markedly downregulated in the LPS-PG-treated hPDLCs. Moreover, overexpression of PLAC8 ameliorated inflammation and promoted cell mobility of LPS-PG-treated hPDLCs, while inhibition of PLAC8 exhibited the opposite effects. MEK/ERK was selected based on analyses of the protein-protein interaction (PPI) network as the potential signaling pathway interacted with PLAC8, and PLAC8 showed regulatory function on activation of the MEK/ERK pathway. Additionally, U0126, the inhibitor of MEK, abrogated the effects of PLAC8 on inflammation and cell mobility of LPS-PG-treated hPDLCs. CONCLUSION Overexpression of PLAC8 protected hPDLCs from dysfunction of inflammation and cell mobility via activating MEK/ERK pathway, indicating a novel therapeutic target for periodontitis.
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Affiliation(s)
| | - Tingqian Zou
- Department of Stomatology, Jingmen Second People's Hospital
| | - Ruiping Tang
- Medical College of Jingchu University of Technology
| | - Chengzhi Zhu
- Department of Stomatology, Affiliated Hospital of Hubei Three Gorges Polytechnic.
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Hight-Warburton W, Felix R, Burton A, Maple H, Chegkazi MS, Steiner RA, McGrath JA, Parsons M. α4/α9 Integrins Coordinate Epithelial Cell Migration Through Local Suppression of MAP Kinase Signaling Pathways. Front Cell Dev Biol 2021; 9:750771. [PMID: 34900996 PMCID: PMC8655878 DOI: 10.3389/fcell.2021.750771] [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: 07/31/2021] [Accepted: 10/31/2021] [Indexed: 11/18/2022] Open
Abstract
Adhesion of basal keratinocytes to the underlying extracellular matrix (ECM) plays a key role in the control of skin homeostasis and response to injury. Integrin receptors indirectly link the ECM to the cell cytoskeleton through large protein complexes called focal adhesions (FA). FA also function as intracellular biochemical signaling platforms to enable cells to respond to changing extracellular cues. The α4β1 and α9β1 integrins are both expressed in basal keratinocytes, share some common ECM ligands, and have been shown to promote wound healing in vitro and in vivo. However, their roles in maintaining epidermal homeostasis and relative contributions to pathological processes in the skin remain unclear. We found that α4β1 and α9β1 occupied distinct regions in monolayers of a basal keratinocyte cell line (NEB-1). During collective cell migration (CCM), α4 and α9 integrins co-localized along the leading edge. Pharmacological inhibition of α4β1 and α9β1 integrins increased keratinocyte proliferation and induced a dramatic change in cytoskeletal remodeling and FA rearrangement, detrimentally affecting CCM. Further analysis revealed that α4β1/α9β1 integrins suppress extracellular signal-regulated kinase (ERK1/2) activity to control migration through the regulation of downstream kinases including Mitogen and Stress Activated Kinase 1 (MSK1). This work demonstrates the roles of α4β1 and α9β1 in regulating migration in response to damage cues.
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Affiliation(s)
- Willow Hight-Warburton
- Parsons Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | | | | | | | - Magda S Chegkazi
- Steiner Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | - Roberto A Steiner
- Steiner Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom.,Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - John A McGrath
- St Johns Institute of Dermatology, King's College London, London, United Kingdom
| | - Maddy Parsons
- Parsons Group, Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
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Kim JY, Park HH, Yong TS, Jeon SH. Lithium chloride inhibits the migration and invasion of osteosarcoma cells by blocking nuclear translocation of phospho-Erk. Biochem Biophys Res Commun 2021; 581:74-80. [PMID: 34656851 DOI: 10.1016/j.bbrc.2021.10.025] [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: 10/10/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022]
Abstract
Lithium chloride (LiCl) is an important mood-stabilizing therapeutic agent for bipolar disorders, which has also been shown to inhibit cancer cell metastasis. Investigations of LiCl-induced signaling have focused mainly on extracellular signal regulated kinase 1/2 (ERK1/2) and glycogen synthase kinase 3 (GSK-3). However, little is known about the differences in cellular activities resulting from specific signaling via each of these pathways. In this study, we investigated the difference in responses between the Wnt/β-catenin and ERK pathways by LiCl or epidermal growth factor (EGF) treatment of osteosarcoma cells. In particular, we analyzed the mechanisms responsible for differences in cell mobility and cell proliferation when pERK or β-catenin is activated. In osteosarcoma cells treated with LiCl or EGF, active β-catenin and p-ERK protein levels were significantly increased compared to those in the control group. However, in wound healing and transwell invasion assays, U2OS and SaOS2 cell migration was significantly reduced by LiCl treatment but increased by EGF treatment. In addition, the proliferation of U2OS cells was reduced by LiCl treatment but increased by EGF treatment. Using immunofluorescence microscopy, we observed nuclear accumulation of phosphorylated ERK (pERK) with EGF treatment, but pERK was restricted to the perinuclear area with LiCl treatment. These results were confirmed using immunoblot assays after subcellular fractionation. Together, these data suggest that LiCl interferes with the translocation of pERK from the cytoplasm to the nucleus.
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Affiliation(s)
- Ju Yeong Kim
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Hun Hee Park
- Department of Clinical Laboratory Science, Ansan University, Gyeonggi-do, 15328, South Korea
| | - Tai-Soon Yong
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, 03722, South Korea.
| | - Soung-Hoo Jeon
- Department of Environmental Medical Biology, Institute of Tropical Medicine, Arthropods of Medical Importance Resource Bank, Yonsei University College of Medicine, Seoul, 03722, South Korea.
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Standardized Extract of Asparagus officinalis Stem Attenuates SARS-CoV-2 Spike Protein-Induced IL-6 and IL-1β Production by Suppressing p44/42 MAPK and Akt Phosphorylation in Murine Primary Macrophages. Molecules 2021; 26:molecules26206189. [PMID: 34684771 PMCID: PMC8540605 DOI: 10.3390/molecules26206189] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/07/2021] [Accepted: 10/12/2021] [Indexed: 01/10/2023] Open
Abstract
Excessive host inflammation following infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is associated with severity and mortality in coronavirus disease 2019 (COVID-19). We recently reported that the SARS-CoV-2 spike protein S1 subunit (S1) induces pro-inflammatory responses by activating toll-like receptor 4 (TLR4) signaling in macrophages. A standardized extract of Asparagus officinalis stem (EAS) is a unique functional food that elicits anti-photoaging effects by suppressing pro-inflammatory signaling in hydrogen peroxide and ultraviolet B-exposed skin fibroblasts. To elucidate its potential in preventing excessive inflammation in COVID-19, we examined the effects of EAS on pro-inflammatory responses in S1-stimulated macrophages. Murine peritoneal exudate macrophages were co-treated with EAS and S1. Concentrations and mRNA levels of pro-inflammatory cytokines were assessed using enzyme-linked immunosorbent assay and reverse transcription and real-time polymerase chain reaction, respectively. Expression and phosphorylation levels of signaling proteins were analyzed using western blotting and fluorescence immunomicroscopy. EAS significantly attenuated S1-induced secretion of interleukin (IL)-6 in a concentration-dependent manner without reducing cell viability. EAS also markedly suppressed the S1-induced transcription of IL-6 and IL-1β. However, among the TLR4 signaling proteins, EAS did not affect the degradation of inhibitor κBα, nuclear translocation of nuclear factor-κB p65 subunit, and phosphorylation of c-Jun N-terminal kinase p54 subunit after S1 exposure. In contrast, EAS significantly suppressed S1-induced phosphorylation of p44/42 mitogen-activated protein kinase (MAPK) and Akt. Attenuation of S1-induced transcription of IL-6 and IL-1β by the MAPK kinase inhibitor U0126 was greater than that by the Akt inhibitor perifosine, and the effects were potentiated by simultaneous treatment with both inhibitors. These results suggest that EAS attenuates S1-induced IL-6 and IL-1β production by suppressing p44/42 MAPK and Akt signaling in macrophages. Therefore, EAS may be beneficial in regulating excessive inflammation in patients with COVID-19.
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Garlatti V, Lovisa S, Danese S, Vetrano S. The Multiple Faces of Integrin-ECM Interactions in Inflammatory Bowel Disease. Int J Mol Sci 2021; 22:10439. [PMID: 34638778 PMCID: PMC8508809 DOI: 10.3390/ijms221910439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 12/03/2022] Open
Abstract
Inflammatory Bowel Disease (IBD) comprises a series of chronic and relapsing intestinal diseases, with Crohn's disease and ulcerative colitis being the most common. The abundant and uncontrolled deposition of extracellular matrix, namely fibrosis, is one of the major hallmarks of IBD and is responsible for the progressive narrowing and closure of the intestine, defined as stenosis. Although fibrosis is usually considered the product of chronic inflammation, the substantial failure of anti-inflammatory therapies to target and reduce fibrosis in IBD suggests that fibrosis might be sustained in an inflammation-independent manner. Pharmacological therapies targeting integrins have recently shown great promise in the treatment of IBD. The efficacy of these therapies mainly relies on their capacity to target the integrin-mediated recruitment and functionality of the immune cells at the damage site. However, by nature, integrins also act as mechanosensitive molecules involved in the intracellular transduction of signals and modifications originating from the extracellular matrix. Therefore, understanding integrin signaling in the context of IBD may offer important insights into mechanisms of matrix remodeling, which are uncoupled from inflammation and could underlie the onset and persistency of intestinal fibrosis. In this review, we present the currently available knowledge on the role of integrins in the etiopathogenesis of IBD, highlighting their role in the context of immune-dependent and independent mechanisms.
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Affiliation(s)
- Valentina Garlatti
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (S.L.); (S.D.)
- Department of Pharmaceutical Sciences, University of Piemonte Orientale ‘A. Avogadro’, 28100 Novara, Italy
| | - Sara Lovisa
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (S.L.); (S.D.)
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
| | - Silvio Danese
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (S.L.); (S.D.)
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
| | - Stefania Vetrano
- IRCCS Humanitas Research Hospital, Rozzano, 20089 Milan, Italy; (V.G.); (S.L.); (S.D.)
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, 20072 Milan, Italy
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46
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Zhang Q, Lin W, Tian L, Di B, Yu J, Niu X, Liu J. Oxidized low-density lipoprotein activates extracellular signal-regulated kinase signaling to downregulate sortilin expression in liver sinusoidal endothelial cells. J Gastroenterol Hepatol 2021; 36:2610-2618. [PMID: 33694195 PMCID: PMC8518938 DOI: 10.1111/jgh.15486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIM Both type 2 diabetes mellitus and non-alcoholic fatty liver disease are closely associated with elevated levels of low-density lipoprotein cholesterol and its oxidized form (ox-LDL). This study aimed to investigate the regulation of sortilin in liver tissue and its potential implications for lipid metabolism. METHODS Sixty male Wistar rats were randomly divided into four groups: control group (n = 15), ox-LDL group (n = 15), PD98059 group (n = 15), and ox-LDL + PD98059 group (n = 15). Liver sinusoidal endothelial cells were extracted from liver tissue of the control group and were identified using an anti-CD31 antibody. Lipid droplet accumulation was observed by Oil red O and hematoxylin-eosin staining. The protein expression levels were detected by immunohistochemical staining, real-time reverse transcription-polymerase chain reaction, and western blot. Histopathologic examinations were performed by Gomori methenamine silver staining. RESULTS The ox-LDL group exhibited increased lipid droplet accumulation. Further, ox-LDL activated the extracellular signal-regulated kinase (ERK)-mediated downregulation of sortilin expression, whereas blocking of ERK signaling by PD98059 increased sortilin protein expression. Consistently, hematoxylin-eosin staining showed that the structure of the hepatocytes was loose and disordered in arrangement, with lipid droplets present in the cytoplasm of the ox-LDL group. However, PD98059 significantly improved the integration of the scaffold structure. Gomori methenamine silver staining showed that the ox-LDL group had darker and more obvious fragmented silver nitrate deposits in the basement membrane and sinus space. CONCLUSIONS Sortilin can protect liver sinusoidal endothelial cells from injury and maintain integration of the liver scaffold structure in ox-LDL-induced lipid-injured liver.
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Affiliation(s)
- Qi Zhang
- Department of EndocrinologyGansu Provincial HospitalLanzhouChina,Clinical Research Center for Metabolic DiseasesGansu ProvincialLanzhouChina
| | - Wenyan Lin
- Gansu Provincial Hospital West CampusLanzhouChina,Clinical Research Center for Metabolic DiseasesGansu ProvincialLanzhouChina
| | - Limin Tian
- Department of EndocrinologyGansu Provincial HospitalLanzhouChina,Clinical Research Center for Metabolic DiseasesGansu ProvincialLanzhouChina
| | - Baoshan Di
- Gansu Provincial Hospital West CampusLanzhouChina
| | - Jing Yu
- Department of EndocrinologyGansu Provincial HospitalLanzhouChina,Clinical Research Center for Metabolic DiseasesGansu ProvincialLanzhouChina
| | - Xiang'e Niu
- Department of EndocrinologyGansu Provincial HospitalLanzhouChina,Clinical Research Center for Metabolic DiseasesGansu ProvincialLanzhouChina,Gansu University of Chinese MedicineLanzhouChina
| | - Jing Liu
- Department of EndocrinologyGansu Provincial HospitalLanzhouChina,Clinical Research Center for Metabolic DiseasesGansu ProvincialLanzhouChina
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47
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Silva AL, Babo PS, Rodrigues MT, Gonçalves AI, Novoa-Carballal R, Pires RA, Rouwkema J, Reis RL, Gomes ME. Hyaluronic Acid Oligomer Immobilization as an Angiogenic Trigger for the Neovascularization of TE Constructs. ACS APPLIED BIO MATERIALS 2021; 4:6023-6035. [DOI: 10.1021/acsabm.1c00291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ana L. Silva
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Pedro S. Babo
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Márcia T. Rodrigues
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Ana I. Gonçalves
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Ramon Novoa-Carballal
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Ricardo A. Pires
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Jeroen Rouwkema
- Department of Biomechanical Engineering, Faculty of Engineering Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Rui L. Reis
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
| | - Manuela E. Gomes
- 3B’s Research Group, I3Bs − Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal
- ICVS/3B’s−PT Government Associate Laboratory, Braga/Guimarães 4710-057, Portugal
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48
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Rabinovitch E, Mihara K, Sananes A, Zaretsky M, Heyne M, Shifman J, Aharoni A, Hollenberg MD, Papo N. A KLK4 proteinase substrate capture approach to antagonize PAR1. Sci Rep 2021; 11:16170. [PMID: 34373558 PMCID: PMC8352894 DOI: 10.1038/s41598-021-95666-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/29/2021] [Indexed: 11/08/2022] Open
Abstract
Proteinase-activated receptor-1 (PAR1), triggered by thrombin and other serine proteinases such as tissue kallikrein-4 (KLK4), is a key driver of inflammation, tumor invasiveness and tumor metastasis. The PAR1 transmembrane G-protein-coupled receptor therefore represents an attractive target for therapeutic inhibitors. We thus used a computational design to develop a new PAR1 antagonist, namely, a catalytically inactive human KLK4 that acts as a proteinase substrate-capture reagent, preventing receptor cleavage (and hence activation) by binding to and occluding the extracellular R41-S42 canonical PAR1 proteolytic activation site. On the basis of in silico site-saturation mutagenesis, we then generated KLK4S207A,L185D, a first-of-a-kind 'decoy' PAR1 inhibitor, by mutating the S207A and L185D residues in wild-type KLK4, which strongly binds to PAR1. KLK4S207A,L185D markedly inhibited PAR1 cleavage, and PAR1-mediated MAPK/ERK activation as well as the migration and invasiveness of melanoma cells. This 'substrate-capturing' KLK4 variant, engineered to bind to PAR1, illustrates proof of principle for the utility of a KLK4 'proteinase substrate capture' approach to regulate proteinase-mediated PAR1 signaling.
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Affiliation(s)
- Eitan Rabinovitch
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, P.O.B. 653, 84105, Beer-Sheva, Israel
| | - Koishiro Mihara
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Amiram Sananes
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, P.O.B. 653, 84105, Beer-Sheva, Israel
| | - Marianna Zaretsky
- Department of Life Sciences, National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Michael Heyne
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, P.O.B. 653, 84105, Beer-Sheva, Israel
- Department of Biological Chemistry, The Hebrew University of Jerusalem, Givat Ram Campus, 91906, Jerusalem, Israel
| | - Julia Shifman
- Department of Biological Chemistry, The Hebrew University of Jerusalem, Givat Ram Campus, 91906, Jerusalem, Israel
| | - Amir Aharoni
- Department of Life Sciences, National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Morley D Hollenberg
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Niv Papo
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, National Institute of Biotechnology in the Negev, Ben-Gurion University of the Negev, P.O.B. 653, 84105, Beer-Sheva, Israel.
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Garabedian MV, Wang W, Dabdoub JB, Tong M, Caldwell RM, Benman W, Schuster BS, Deiters A, Good MC. Designer membraneless organelles sequester native factors for control of cell behavior. Nat Chem Biol 2021; 17:998-1007. [PMID: 34341589 PMCID: PMC8387445 DOI: 10.1038/s41589-021-00840-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/24/2021] [Indexed: 02/08/2023]
Abstract
Subcellular compartmentalization of macromolecules increases flux and prevents inhibitory interactions to control biochemical reactions. Inspired by this functionality, we sought to build designer compartments that function as hubs to regulate the flow of information through cellular control systems. We report a synthetic membraneless organelle platform to control endogenous cellular activities through sequestration and insulation of native proteins. We engineer and express a disordered protein scaffold to assemble micron size condensates and recruit endogenous clients via genomic tagging with high-affinity dimerization motifs. By relocalizing up to ninety percent of a targeted enzymes to synthetic condensates, we efficiently control cellular behaviors, including proliferation, division, and cytoskeletal organization. Further, we demonstrate multiple strategies for controlled cargo release from condensates to switch cells between functional states. These synthetic organelles offer a powerful and generalizable approach to modularly control cell decision-making in a variety of model systems with broad applications for cellular engineering.
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Affiliation(s)
- Mikael V Garabedian
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Wentao Wang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Jorge B Dabdoub
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Michelle Tong
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - Reese M Caldwell
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA
| | - William Benman
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Benjamin S Schuster
- Department of Chemical and Biochemical Engineering, Rutgers University, Piscataway, NJ, USA
| | - Alexander Deiters
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Matthew C Good
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, PA, USA. .,Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
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50
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Laurentino TDS, Soares RDS, Lerario AM, Marie SKN, Oba-Shinjo SM. LOXL3 Silencing Affected Cell Adhesion and Invasion in U87MG Glioma Cells. Int J Mol Sci 2021; 22:ijms22158072. [PMID: 34360836 PMCID: PMC8347215 DOI: 10.3390/ijms22158072] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 01/22/2023] Open
Abstract
Lysyl oxidase-like 3 (LOXL3), belonging to the lysyl oxidase family, is responsible for the crosslinking in collagen or elastin. The cellular localization of LOXL3 is in the extracellular space by reason of its canonical function. In tumors, the presence of LOXL3 has been associated with genomic stability, cell proliferation, and metastasis. In silico analysis has shown that glioblastoma was among tumors with the highest LOXL3 expression levels. LOXL3 silencing of U87MG cells by siRNA led to the spreading of the tumor cell surface, and the transcriptome analysis of these cells revealed an upregulation of genes coding for extracellular matrix, cell adhesion, and cytoskeleton components, convergent to an increase in cell adhesion and a decrease in cell invasion observed in functional assays. Significant correlations of LOXL3 expression with genes coding for tubulins were observed in the mesenchymal subtype in the TCGA RNA-seq dataset of glioblastoma (GBM). Conversely, genes involved in endocytosis and lysosome formation, along with MAPK-binding proteins related to focal adhesion turnover, were downregulated, which may corroborate the observed decrease in cell viability and increase in the rate of cell death. Invasiveness is a major determinant of the recurrence and poor outcome of GBM patients, and downregulation of LOXL3 may contribute to halting the tumor cell invasion.
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Affiliation(s)
- Talita de S. Laurentino
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
- Correspondence: (T.d.S.L.); (S.M.O.-S.); Tel.: +55-11-3061-8310 (T.d.S.L. & S.M.O.-S.)
| | - Roseli da S. Soares
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
| | - Antonio M. Lerario
- Department of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Suely K. N. Marie
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
| | - Sueli M. Oba-Shinjo
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
- Correspondence: (T.d.S.L.); (S.M.O.-S.); Tel.: +55-11-3061-8310 (T.d.S.L. & S.M.O.-S.)
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