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Zong P, Li CX, Feng J, Cicchetti M, Yue L. TRP Channels in Stroke. Neurosci Bull 2024; 40:1141-1159. [PMID: 37995056 PMCID: PMC11306852 DOI: 10.1007/s12264-023-01151-5] [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: 07/10/2023] [Accepted: 09/11/2023] [Indexed: 11/24/2023] Open
Abstract
Ischemic stroke is a devastating disease that affects millions of patients worldwide. Unfortunately, there are no effective medications for mitigating brain injury after ischemic stroke. TRP channels are evolutionally ancient biosensors that detect external stimuli as well as tissue or cellular injury. To date, many members of the TRP superfamily have been reported to contribute to ischemic brain injury, including the TRPC subfamily (1, 3, 4, 5, 6, 7), TRPV subfamily (1, 2, 3, 4) and TRPM subfamily (2, 4, 7). These TRP channels share structural similarities but have distinct channel functions and properties. Their activation during ischemic stroke can be beneficial, detrimental, or even both. In this review, we focus on discussing the interesting features of stroke-related TRP channels and summarizing the underlying cellular and molecular mechanisms responsible for their involvement in ischemic brain injury.
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Affiliation(s)
- Pengyu Zong
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA.
- Institute for the Brain and Cognitive Sciences, University of Connecticut, 337 Mansfield Road, Unit 1272, Storrs, CT, 06269, USA.
| | - Cindy X Li
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
| | - Jianlin Feng
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
| | - Mara Cicchetti
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA
- Department of Neuroscience, University of Pittsburgh, 4200 Fifth Ave, Pittsburgh, PA, 15260, USA
| | - Lixia Yue
- Department of Cell Biology, Calhoun Cardiology Center, School of Medicine (UConn Health), University of Connecticut, Farmington, CT, 06030, USA.
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Bhat AA, Afzal M, Goyal A, Gupta G, Thapa R, Almalki WH, Kazmi I, Alzarea SI, Shahwan M, Paudel KR, Ali H, Sahu D, Prasher P, Singh SK, Dua K. The impact of formaldehyde exposure on lung inflammatory disorders: Insights into asthma, bronchitis, and pulmonary fibrosis. Chem Biol Interact 2024; 394:111002. [PMID: 38604395 DOI: 10.1016/j.cbi.2024.111002] [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: 02/16/2024] [Revised: 03/27/2024] [Accepted: 04/07/2024] [Indexed: 04/13/2024]
Abstract
Lung inflammatory disorders are a major global health burden, impacting millions of people and raising rates of morbidity and death across many demographic groups. An industrial chemical and common environmental contaminant, formaldehyde (FA) presents serious health concerns to the respiratory system, including the onset and aggravation of lung inflammatory disorders. Epidemiological studies have shown significant associations between FA exposure levels and the incidence and severity of several respiratory diseases. FA causes inflammation in the respiratory tract via immunological activation, oxidative stress, and airway remodelling, aggravating pre-existing pulmonary inflammation and compromising lung function. Additionally, FA functions as a respiratory sensitizer, causing allergic responses and hypersensitivity pneumonitis in sensitive people. Understanding the complicated processes behind formaldehyde-induced lung inflammation is critical for directing targeted strategies aimed at minimizing environmental exposures and alleviating the burden of formaldehyde-related lung illnesses on global respiratory health. This abstract explores the intricate relationship between FA exposure and lung inflammatory diseases, including asthma, bronchitis, allergic inflammation, lung injury and pulmonary fibrosis.
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Affiliation(s)
- Asif Ahmad Bhat
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India
| | - Muhammad Afzal
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah, 21442, Saudi Arabia
| | - Ahsas Goyal
- Institute of Pharmaceutical Research, GLA University, Mathura, U.P., India
| | - Gaurav Gupta
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248007, India; Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates.
| | - Riya Thapa
- School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, 302017, Mahal Road, Jaipur, India
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Imran Kazmi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, 21589, Jeddah, Saudi Arabia
| | - Sami I Alzarea
- Department of Pharmacology, College of Pharmacy, Jouf University, 72341, Sakaka, Aljouf, Saudi Arabia
| | - Moyad Shahwan
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, 346, United Arab Emirates
| | - Keshav Raj Paudel
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, School of Life Sciences, Sydney, NSW, 2050, Australia
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan
| | - Dipak Sahu
- Department of Pharmacology, Amity University, Raipur, Chhattisgarh, India
| | - Parteek Prasher
- Department of Chemistry, University of Petroleum & Energy Studies, Energy Acres, Dehradun, 248007, India
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, 144411, India; Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; School of Medical and Life Sciences, Sunway University, 47500 Sunway City, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, 2007, Australia; Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, NSW, 2007, Australia; Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India.
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Dutta B, Mahanty M, Kesavalu L, Rahaman SO. Mechanisms underlying TRPV4-mediated regulation of miR-146a expression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.03.587984. [PMID: 38617263 PMCID: PMC11014524 DOI: 10.1101/2024.04.03.587984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Persistent inflammation is a major contributor in the development of various inflammatory diseases like atherosclerosis. Our study investigates how transient receptor potential vanilloid 4 (TRPV4), a mechanosensitive ion channel, interacts with microRNA-146a (miR-146a), within the context of inflammation and atherosclerosis. Micro-RNAs play a critical role in controlling gene expression, and miR-146a is notable for its anti-inflammatory actions. TRPV4 is activated by diverse soluble and mechanical stimuli, and often associated with inflammatory responses in various diseases. Here, we find that TRPV4 negatively regulates miR-146a expression in macrophages, especially following stimulation by lipopolysaccharides or alterations in matrix stiffness. We show that in atherosclerosis, a condition characterized by matrix stiffening, TRPV4 decreases miR-146a expression in aortic tissue macrophages. We find that TRPV4's impact on miR-146a is independent of activation of NFκB, Stat1, P38, and AKT, but is rather mediated through a mechanism involving histone deacetylation instead of DNA methylation at the miR-146a promoter site. Furthermore, we show that N-terminal residues 1 to 130 in TRPV4 is essential in suppression of miR-146a expression in LPS-stimulated macrophages. Altogether, this study identifies a regulatory mechanism of miR-146a expression by TRPV4 which may open new potential therapeutic strategies for managing inflammatory diseases.
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Wang Y, Jiang T. Recent research advances in pain mechanisms in McCune-Albright syndrome thinking about the pain mechanism of FD/MAS. J Orthop Surg Res 2024; 19:196. [PMID: 38515135 PMCID: PMC10956191 DOI: 10.1186/s13018-024-04687-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 03/16/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND The lack of effective understanding of the pain mechanism of McCune-Albright syndrome (MAS) has made the treatment of pain in this disease a difficult clinical challenge, and new therapeutic targets are urgently needed to address this dilemma. OBJECTIVE This paper summarizes the novel mechanisms, targets, and treatments that may produce pain in MAS and fibrous dysplasia (polyfibrous dysplasia, or FD). METHODS We conducted a systematic search in the PubMed database, Web of Science, China Knowledge Network (CNKI) with the following keywords: "McCune-Albright syndrome (MAS); polyfibrous dysplasia (FD); bone pain; bone remodeling; G protein coupled receptors; GDNF family receptors; purinergic receptors and glycogen synthase kinase", as well as other keywords were systematically searched. Papers published between January 2018 and May 2023 were selected for finding. Initial screening was performed by reading the titles and abstracts, and available literature was screened against the inclusion and exclusion criteria. RESULTS In this review, we systematically analyzed the cutting-edge advances in this disease, synthesized the findings, and discussed the differences. With regard to the complete mechanistic understanding of the pain condition in FD/MAS, in particular, we collated new findings on new pathways, neurotrophic factor receptors, purinergic receptors, interferon-stimulating factors, potassium channels, protein kinases, and corresponding hormonal modulation and their respective strengths and weaknesses. CONCLUSION This paper focuses on basic research to explore FD/MAS pain mechanisms. New nonneuronal and molecular mechanisms, mechanically loaded responsive neurons, and new targets for potential clinical interventions are future research directions, and a large number of animal experiments, tissue engineering techniques, and clinical trials are still needed to verify the effectiveness of the targets in the future.
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Affiliation(s)
- Yong Wang
- Orthopedics Department, Changzhou Traditional Chinese Medicine Hospital, Nanjing University of Chinese Medicine, Changzhou, 213000, Jangsu Province, China
| | - Tao Jiang
- Orthopedics Department, Changzhou Traditional Chinese Medicine Hospital, Nanjing University of Chinese Medicine, Changzhou, 213000, Jangsu Province, China.
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Alavi MS, Soheili V, Roohbakhsh A. The role of transient receptor potential (TRP) channels in phagocytosis: A comprehensive review. Eur J Pharmacol 2024; 964:176302. [PMID: 38154767 DOI: 10.1016/j.ejphar.2023.176302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023]
Abstract
When host cells are exposed to foreign particles, dead cells, or cell hazards, a sophisticated process called phagocytosis begins. During this process, macrophages, dendritic cells, and neutrophils engulf the target by expanding their membranes. Phagocytosis of apoptotic cells is called efferocytosis. This process is of significant importance as billions of cells are eliminated daily without provoking inflammation. Both phagocytosis and efferocytosis depend on Ca2+ signaling. A big family of Ca2+ permeable channels is transient receptor potentials (TRPs) divided into nine subfamilies. We aimed to review their roles in phagocytosis. The present review article shows that various TRP channels such as TRPV1, 2, 3, 4, TRPM2, 4, 7, 8, TRPML1, TRPA1, TRPC1, 3, 5, 6 have roles at various stages of phagocytosis. They are involved in the phagocytosis of amyloid β, α-synuclein, myelin debris, bacteria, and apoptotic cells. In particular, TRPC3 and TRPM7 contribute to efferocytosis. These effects are mediated by changing Ca2+ signaling or targeting intracellular enzymes such as Akt. In addition, they contribute to the chemotaxis of phagocytic cells towards targets. Although a limited number of studies have assessed the role of TRP channels in phagocytosis and efferocytosis, their findings indicate that they have critical roles in these processes. In some cases, their ablation completely abolished the phagocytic function of the cells. As a result, TRP channels are potential targets for developing new therapeutics that modulate phagocytosis.
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Affiliation(s)
- Mohaddeseh Sadat Alavi
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Soheili
- Pharmaceutical Control Department, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ali Roohbakhsh
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Babaniamansour P, Jacho D, Niedzielski S, Rabino A, Garcia-Mata R, Yildirim-Ayan E. Modulating TRPV4 Channel Activity in Pro-Inflammatory Macrophages within the 3D Tissue Analog. Biomedicines 2024; 12:230. [PMID: 38275401 PMCID: PMC10813551 DOI: 10.3390/biomedicines12010230] [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: 12/21/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Investigating macrophage plasticity emerges as a promising strategy for promoting tissue regeneration and can be exploited by regulating the transient receptor potential vanilloid 4 (TRPV4) channel. The TRPV4 channel responds to various stimuli including mechanical, chemical, and selective pharmacological compounds. It is well documented that treating cells such as epithelial cells and fibroblasts with a TRPV4 agonist enhances the Ca2+ influx to the cells, which leads to secretion of pro-inflammatory cytokines, while a TRPV4 antagonist reduces both Ca2+ influx and pro-inflammatory cytokine secretion. In this work, we investigated the effect of selective TRPV4 modulator compounds on U937-differentiated macrophages encapsulated within three-dimensional (3D) matrices. Despite offering a more physiologically relevant model than 2D cultures, pharmacological treatment of macrophages within 3D collagen matrices is largely overlooked in the literature. In this study, pro-inflammatory macrophages were treated with an agonist, 500 nM of GSK1016790A (TRPV4(+)), and an antagonist, 10 mM of RN-1734 (TRPV4(-)), to elucidate the modulation of the TRPV4 channel at both cellular and extracellular levels. To evaluate macrophage phenotypic alterations within 3D collagen matrices following TRPV4 modulator treatment, we employed structural techniques (SEM, Masson's trichrome, and collagen hybridizing peptide (CHP) staining), quantitative morphological measures for phenotypic assessment, and genotypic methods such as quantitative real-time PCR (qRT-PCR) and immunohistochemistry (IHC). Our data reveal that pharmacological modulation of the macrophage TRPV4 channel alters the cytoskeletal structure of macrophages and influences the 3D structure encapsulating them. Moreover, we proved that treating macrophages with a TRPV4 agonist and antagonist enhances the expression of pro- and anti-inflammatory genes, respectively, leading to the upregulation of surface markers CD80 and CD206. In the TRPV4(-) group, the CD206 gene and CD206 surface marker were significantly upregulated by 9- and 2.5-fold, respectively, compared to the control group. These findings demonstrate that TRPV4 modulation can be utilized to shift macrophage phenotype within the 3D matrix toward a desired state. This is an innovative approach to addressing inflammation in musculoskeletal tissues.
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Affiliation(s)
- Parto Babaniamansour
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Diego Jacho
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Skyler Niedzielski
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
| | - Agustin Rabino
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Rafael Garcia-Mata
- Department of Biological Sciences, University of Toledo, Toledo, OH 43606, USA
| | - Eda Yildirim-Ayan
- Department of Bioengineering, College of Engineering, University of Toledo, Toledo, OH 43606, USA; (P.B.); (S.N.)
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Go EJ, Lee JY, Kim YH, Park CK. Site-Specific Transient Receptor Potential Channel Mechanisms and Their Characteristics for Targeted Chronic Itch Treatment. Biomolecules 2024; 14:107. [PMID: 38254707 PMCID: PMC10813675 DOI: 10.3390/biom14010107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/24/2024] Open
Abstract
Chronic itch is a debilitating condition with limited treatment options, severely affecting quality of life. The identification of pruriceptors has sparked a growing interest in the therapeutic potential of TRP channels in the context of itch. In this regard, we provided a comprehensive overview of the site-specific expression of TRP channels and their associated functions in response to a range of pruritogens. Although several potent antipruritic compounds that target specific TRP channels have been developed and have demonstrated efficacy in various chronic itch conditions through experimental means, a more thorough understanding of the potential for adverse effects or interactions with other TRP channels or GPCRs is necessary to develop novel and selective therapeutics that target TRP channels for treating chronic itch. This review focuses on the mechanism of itch associated with TRP channels at specific sites, from the skin to the sensory neuron, with the aim of suggesting specific therapeutic targets for treating this condition.
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Affiliation(s)
- Eun Jin Go
- Gachon Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
| | - Ji Yeon Lee
- Department of Anesthesiology and Pain Medicine, Gil Medical Center, Gachon University, Incheon 21565, Republic of Korea;
| | - Yong Ho Kim
- Gachon Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
| | - Chul-Kyu Park
- Gachon Pain Center and Department of Physiology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea;
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Wernlé K, Thiel CS, Ullrich O. Increased H3K9me3 and F-Actin Reorganization in the Rapid Adaptive Response to Hypergravity in Human T Lymphocytes. Int J Mol Sci 2023; 24:17232. [PMID: 38139061 PMCID: PMC10743231 DOI: 10.3390/ijms242417232] [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: 10/31/2023] [Revised: 11/27/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Our study explored the impact of hypergravity on human T cells, which experience additional acceleration forces beyond Earth's gravity due to various factors, such as pulsatile blood flow, and technology, such as high-performance aircraft flights or spaceflights. We investigated the histone modifications Histone 3 lysine 4 and 9 trimethylation (H3K4me3 and H3K9me3, respectively), as well as the structural and cytoskeletal organization of Jurkat T cells in response to hypergravity. Histone modifications play a crucial role in gene regulation, chromatin organization and DNA repair. In response to hypergravity, we found only minimal changes of H3K4me3 and a rapid increase in H3K9me3, which was sustained for up to 15 min and then returned to control levels after 1 h. Furthermore, rapid changes in F-actin fluorescence were observed within seconds of hypergravity exposure, indicating filament depolymerization and cytoskeletal restructuring, which subsequently recovered after 1 h of hypergravity. Our study demonstrated the rapid, dynamic and adaptive cellular response to hypergravity, particularly in terms of histone modifications and cytoskeletal changes. These responses are likely necessary for maintaining genome stability and structural integrity under hypergravity conditions as they are constantly occurring in the human body during blood cell circulation.
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Affiliation(s)
- Kendra Wernlé
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland;
- Faculty of Medical Sciences, Private University of the Principality of Liechtenstein (UFL), Dorfstrasse 24, 9495 Triesen, Liechtenstein
| | - Cora S. Thiel
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland;
- Institute of Machine Design, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
- Space Life Sciences Laboratory (SLSL), Kennedy Space Center, 505 Odyssey Way, Exploration Park, Merritt Island, FL 32953, USA
- UZH Space Hub, Air Force Center, Air Base Dübendorf, Überlandstrasse 270, 8600 Dubendorf, Switzerland
| | - Oliver Ullrich
- Institute of Anatomy, Faculty of Medicine, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland;
- Institute of Machine Design, Otto-von-Guericke-University Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
- Space Life Sciences Laboratory (SLSL), Kennedy Space Center, 505 Odyssey Way, Exploration Park, Merritt Island, FL 32953, USA
- UZH Space Hub, Air Force Center, Air Base Dübendorf, Überlandstrasse 270, 8600 Dubendorf, Switzerland
- Department of Industrial Engineering, Ernst-Abbe-Hochschule (EAH) Jena, Carl-Zeiss-Promenade 2, 07745 Jena, Germany
- Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
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Amalia SN, Baral H, Fujiwara C, Uchiyama A, Inoue Y, Yamazaki S, Ishikawa M, Kosaka K, Sekiguchi A, Yokoyama Y, Ogino S, Torii R, Hosoi M, Shibasaki K, Motegi SI. TRPV4 Regulates the Development of Psoriasis by Controlling Adenosine Triphosphate Expression in Keratinocytes and the Neuroimmune System. J Invest Dermatol 2023; 143:2356-2365.e5. [PMID: 37263487 DOI: 10.1016/j.jid.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 06/03/2023]
Abstract
TRPV4 is a calcium ion channel that is widely expressed in various cells. It is also involved in physiological and pathological processes. However, the role of TRPV4 in psoriasis remains unknown. We aimed to investigate the role of TRPV4 in psoriasis using human psoriasis skin samples and an imiquimod-induced psoriasis-like mouse model. Keratinocytes in human psoriasis skin had high TRPV4 expression. Trpv4-knockout mice had less severe dermatitis than wild-type mice in the imiquimod-induced mouse model. Knockout mice had significantly reduced epidermal thickness and a low number of infiltrated CD3+ T cells and CD68+ macrophages on the basis of histopathological studies and decreased mRNA expression of Il17a, Il17f, and Il23, as detected through qPCR. Furthermore, knockout mice had a significantly low expression of neuropeptides and the neuron marker PGP9.5. Adenosine triphosphate release was significantly suppressed by TRPV4 knockdown in both human and mouse keratinocytes in vitro. Finally, treatment with TRPV4 antagonist was significantly effective in preventing the progression of psoriasis-like dermatitis. In conclusion, TRPV4 mediates the expression of keratinocyte-derived adenosine triphosphate and increases the secretion of neuropeptides, resulting in the activation and amplification of IL-23/Th17 responses. Hence, TRPV4 can serve as a novel therapeutic target in psoriasis.
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Affiliation(s)
- Syahla Nisaa Amalia
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Hritu Baral
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Chisako Fujiwara
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akihiko Uchiyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan.
| | - Yuta Inoue
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sahori Yamazaki
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Mai Ishikawa
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Keiji Kosaka
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Akiko Sekiguchi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yoko Yokoyama
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Sachiko Ogino
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Ryoko Torii
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Mari Hosoi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Koji Shibasaki
- Laboratory of Neurochemistry, Graduate School of Human Health Science, University of Nagasaki, Nagasaki, Japan
| | - Sei-Ichiro Motegi
- Department of Dermatology, Gunma University Graduate School of Medicine, Maebashi, Japan
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HU WEI, WARTMANN THOMAS, STRECKER MARCO, PERRAKIS ARISTOTELIS, CRONER ROLAND, SZALLASI ARPAD, SHI WENJIE, KAHLERT ULFD. Transient receptor potential channels as predictive marker and potential indicator of chemoresistance in colon cancer. Oncol Res 2023; 32:227-239. [PMID: 38188686 PMCID: PMC10767253 DOI: 10.32604/or.2023.043053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 10/13/2023] [Indexed: 01/09/2024] Open
Abstract
Transient receptor potential (TRP) channels are strongly associated with colon cancer development and progression. This study leveraged a multivariate Cox regression model on publicly available datasets to construct a TRP channels-associated gene signature, with further validation of signature in real world samples from our hospital treated patient samples. Kaplan-Meier (K-M) survival analysis and receiver operating characteristic (ROC) curves were employed to evaluate this gene signature's predictive accuracy and robustness in both training and testing cohorts, respectively. Additionally, the study utilized the CIBERSORT algorithm and single-sample gene set enrichment analysis to explore the signature's immune infiltration landscape and underlying functional implications. The support vector machine algorithm was applied to evaluate the signature's potential in predicting chemotherapy outcomes. The findings unveiled a novel three TRP channels-related gene signature (MCOLN1, TRPM5, and TRPV4) in colon adenocarcinoma (COAD). The ROC and K-M survival curves in the training dataset (AUC = 0.761; p = 1.58e-05) and testing dataset (AUC = 0.699; p = 0.004) showed the signature's robust predictive capability for the overall survival of COAD patients. Analysis of the immune infiltration landscape associated with the signature revealed higher immune infiltration, especially an increased presence of M2 macrophages, in high-risk group patients compared to their low-risk counterparts. High-risk score patients also exhibited potential responsiveness to immune checkpoint inhibitor therapy, evident through increased CD86 and PD-1 expression profiles. Moreover, the TRPM5 gene within the signature was highly expressed in the chemoresistance group (p = 0.00095) and associated with poor prognosis (p = 0.036) in COAD patients, highlighting its role as a hub gene of chemoresistance. Ultimately, this signature emerged as an independent prognosis factor for COAD patients (p = 6.48e-06) and expression of model gene are validated by public data and real-world patients. Overall, this bioinformatics study provides valuable insights into the prognostic implications and potential chemotherapy resistance mechanisms associated with TRPs-related genes in colon cancer.
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Affiliation(s)
- WEI HU
- The Fourth Clinical Medical College of Yangzhou University, Nantong Rich Hospital, Nantong, China
| | - THOMAS WARTMANN
- Molecular and Experimental Surgery, Clinic for General-, Visceral-, Vascular and Transplant Surgery, Faculty of Medicine and University Hospital Magdeburg, Otto-von-Guericke University, Magdeburg, Germany
| | - MARCO STRECKER
- Molecular and Experimental Surgery, Clinic for General-, Visceral-, Vascular and Transplant Surgery, Faculty of Medicine and University Hospital Magdeburg, Otto-von-Guericke University, Magdeburg, Germany
| | - ARISTOTELIS PERRAKIS
- Molecular and Experimental Surgery, Clinic for General-, Visceral-, Vascular and Transplant Surgery, Faculty of Medicine and University Hospital Magdeburg, Otto-von-Guericke University, Magdeburg, Germany
| | - ROLAND CRONER
- Molecular and Experimental Surgery, Clinic for General-, Visceral-, Vascular and Transplant Surgery, Faculty of Medicine and University Hospital Magdeburg, Otto-von-Guericke University, Magdeburg, Germany
| | - ARPAD SZALLASI
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - WENJIE SHI
- Molecular and Experimental Surgery, Clinic for General-, Visceral-, Vascular and Transplant Surgery, Faculty of Medicine and University Hospital Magdeburg, Otto-von-Guericke University, Magdeburg, Germany
| | - ULF D. KAHLERT
- Molecular and Experimental Surgery, Clinic for General-, Visceral-, Vascular and Transplant Surgery, Faculty of Medicine and University Hospital Magdeburg, Otto-von-Guericke University, Magdeburg, Germany
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11
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Deng F, Fu M, Zhao C, Lei J, Xu T, Ji B, Ding H, Zhang Y, Chen J, Qiu J, Gao Q. Calcium signals and potential therapy targets in ovarian cancer (Review). Int J Oncol 2023; 63:125. [PMID: 37711071 PMCID: PMC10552713 DOI: 10.3892/ijo.2023.5573] [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: 03/23/2023] [Accepted: 08/22/2023] [Indexed: 09/16/2023] Open
Abstract
Ovarian cancer (OC) is a deadly disease. The poor prognosis and high lethality of OC are attributed to its high degrees of aggressiveness, resistance to chemotherapy and recurrence rates. Calcium ion (Ca2+) signaling has received attention in recent years, as it appears to form an essential part of various aspects of cancer pathophysiology and is a potential therapeutic target for OC treatment. Disruption of normal Ca2+ signaling pathways can induce changes in cell cycle progression, apoptosis, proliferation and migration and invasion, leading to the development of the malignant phenotype of tumors. In the present review, the main roles of ion channel/receptor/pump‑triggered Ca2+ signaling pathways located at the plasma membrane and organelle Ca2+ transport in OC are summarized. In addition, the potential of Ca2+ signaling as a novel target for the development of effective treatment strategies for OC was discussed. Furthering the understanding into the role of Ca2+ signaling in OC is expected to facilitated the identification of novel therapeutic targets and improved clinical outcomes for patients.
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Affiliation(s)
- Fengying Deng
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Mengyu Fu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Chenxuan Zhao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Jiahui Lei
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Ting Xu
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Bingyu Ji
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Hongmei Ding
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Yueming Zhang
- Department of Gynecology and Obstetrics, Dushu Lake Hospital Affiliated to Soochow University, Suzhou, Jiangsu 215100, P.R. China
| | - Jie Chen
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
| | - Junlan Qiu
- Department of Oncology and Hematology, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, Jiangsu 215153, P.R. China
| | - Qinqin Gao
- Institute for Fetology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, P.R. China
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12
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Li MR, Luo XJ, Peng J. Role of sonic hedgehog signaling pathway in the regulation of ion channels: focus on its association with cardio-cerebrovascular diseases. J Physiol Biochem 2023; 79:719-730. [PMID: 37676576 DOI: 10.1007/s13105-023-00982-0] [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: 01/19/2023] [Accepted: 08/25/2023] [Indexed: 09/08/2023]
Abstract
Sonic hedgehog (SHH) signaling is vital for cell differentiation and proliferation during embryonic development, yet its role in cardiac, cerebral, and vascular pathophysiology is under debate. Recent studies have demonstrated that several compounds of SHH signaling regulate ion channels, which in turn affect the behavior of target cells. Some of these ion channels are involved in the cardio-cerebrovascular system. Here, we first reviewed the SHH signaling cascades, then its interaction with ion channels, and their impact on cardio-cerebrovascular diseases. Considering the complex cross talk of SHH signaling with other pathways that also affect ion channels and their potential impact on the cardio-cerebrovascular system, we highlight the necessity of thoroughly studying the effect of SHH signaling on ion homeostasis, which could serve as a novel mechanism for cardio-cerebrovascular diseases. Activation of SHH signaling influence ion channels activity, which in turn influence ion homeostasis, membrane potential, and electrophysiology, could serve as a novel strategy for cardio-cerebrovascular diseases.
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Affiliation(s)
- Ming-Rui Li
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China
| | - Xiu-Ju Luo
- Department of Laboratory Medicine, The Third Xiangya Hospital of Central South University, Changsha, 410013, China.
| | - Jun Peng
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China.
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, China.
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13
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Ezzo M, Hinz B. Novel approaches to target fibroblast mechanotransduction in fibroproliferative diseases. Pharmacol Ther 2023; 250:108528. [PMID: 37708995 DOI: 10.1016/j.pharmthera.2023.108528] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/09/2023] [Accepted: 09/07/2023] [Indexed: 09/16/2023]
Abstract
The ability of cells to sense and respond to changes in mechanical environment is vital in conditions of organ injury when the architecture of normal tissues is disturbed or lost. Among the various cellular players that respond to injury, fibroblasts take center stage in re-establishing tissue integrity by secreting and organizing extracellular matrix into stabilizing scar tissue. Activation, activity, survival, and death of scar-forming fibroblasts are tightly controlled by mechanical environment and proper mechanotransduction ensures that fibroblast activities cease after completion of the tissue repair process. Conversely, dysregulated mechanotransduction often results in fibroblast over-activation or persistence beyond the state of normal repair. The resulting pathological accumulation of extracellular matrix is called fibrosis, a condition that has been associated with over 40% of all deaths in the industrialized countries. Consequently, elements in fibroblast mechanotransduction are scrutinized for their suitability as anti-fibrotic therapeutic targets. We review the current knowledge on mechanically relevant factors in the fibroblast extracellular environment, cell-matrix and cell-cell adhesion structures, stretch-activated membrane channels, stress-regulated cytoskeletal structures, and co-transcription factors. We critically discuss the targetability of these elements in therapeutic approaches and their progress in pre-clinical and/or clinical trials to treat organ fibrosis.
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Affiliation(s)
- Maya Ezzo
- Keenan Research Institute for Biomedical Science of the St. Michael's Hospital, and Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Boris Hinz
- Keenan Research Institute for Biomedical Science of the St. Michael's Hospital, and Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.
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14
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Rahaman SG, Mahanty M, Mukherjee P, Dutta B, Rahaman SO. Mechanosensing and Mechanosignal Transduction in Atherosclerosis. Curr Atheroscler Rep 2023; 25:711-721. [PMID: 37615786 DOI: 10.1007/s11883-023-01139-6] [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] [Accepted: 08/16/2023] [Indexed: 08/25/2023]
Abstract
PURPOSE OF REVIEW This review aims to summarize the latest findings on mechanosensing in atherosclerosis, elucidating the molecular mechanisms, cellular players, and potential therapeutic targets. RECENT FINDINGS Atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaque within arterial walls, is a major contributor to cardiovascular disease-related mortality and morbidity. Interestingly, atherosclerosis predominantly occurs in arterial areas with curves and branches. In these regions, endothelial cells encounter irregular blood flow with distinctive low-intensity fluctuating shear stress. On the other hand, straight sections of arteries, subjected to a consistent flow and related high-intensity, one-way shear stress, are relatively safeguarded against atherosclerosis due to shear-dependent, disease-preventing endothelial cell reactions. In recent years, researchers have been investigating the role of mechanosensing in the development and progression of atherosclerosis. At the core of mechanosensing is the ability of various cells to sense and respond to biomechanical forces in their environment. In the context of atherosclerosis, endothelial cells, smooth muscle cells, and immune cells are subjected to various mechanical or physical stimuli, including shear stress, cyclic strain, and matrix stiffness. These mechanical cues play a crucial role in regulating cellular behavior and contribute to the pathophysiology of atherosclerosis. Accumulating evidence suggests that various mechanical or physical cues play a critical role in the development and promotion of atherosclerosis.
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Affiliation(s)
- Suneha G Rahaman
- University of Maryland, Department of Nutrition and Food Science, College Park, MD, 20742, USA
| | - Manisha Mahanty
- University of Maryland, Department of Nutrition and Food Science, College Park, MD, 20742, USA
| | - Pritha Mukherjee
- University of Maryland, Department of Nutrition and Food Science, College Park, MD, 20742, USA
| | - Bidisha Dutta
- University of Maryland, Department of Nutrition and Food Science, College Park, MD, 20742, USA
| | - Shaik O Rahaman
- University of Maryland, Department of Nutrition and Food Science, College Park, MD, 20742, USA.
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15
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Hotta M, Hayase K, Kitanaka A, Li T, Takeoka S. Development of the observation of membrane fusion with label-free liposomes by calcium imaging. Biochem Biophys Rep 2023; 34:101483. [PMID: 37250982 PMCID: PMC10209117 DOI: 10.1016/j.bbrep.2023.101483] [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: 12/02/2022] [Revised: 03/31/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023] Open
Abstract
Liposomes are artificial vesicles composed of lipid bilayers that have enabled drugs to be encapsulated and delivered to tumor tissue. Membrane-fusogenic liposomes fuse with the plasma membranes of cells to deliver encapsulated drugs directly to the cytosol, which makes it a promising method for rapid and highly efficient drug delivery. In a previous study, liposomal lipid bilayers were labeled with fluorescent probes, and colocalization of labeled lipids with plasma membrane was observed under a microscope. However, there was concern that fluorescent labeling would affect lipid dynamics and cause liposomes to acquire membrane fusogenic ability. In addition, encapsulation of hydrophilic fluorescent substances in the inner aqueous phase sometimes requires an additional step of removing unencapsulated substances after preparation, and there is a risk of leakage. Herein, we propose a new method to observe cell interaction with liposomes without labeling. Our laboratory has developed two types of liposomes with different cellular internalization pathways, i.e., endocytosis and membrane fusion. We found that cytosolic calcium influx would be triggered following the internalization of cationic liposomes, and different cell entry routes led to different calcium responses. Thus, the correlation between cell entry routes and calcium responses could be utilized to study liposome-cell interactions without fluorescent labeling lipids. Briefly, liposomes were added to phorbol 12-myristate 13-acetate (PMA)-primed THP-1 cells, and calcium influx was measured by time-lapse imaging using a fluorescent indicator (Fura 2-AM). Liposomes with high membrane fusogenic ability elicited a strong transient calcium response immediately after adding liposomes, whereas those taken up mainly by endocytosis elicited multiple weak calcium responses. In order to verify the cell entry routes, we also tracked the intracellular distribution of fluorescent-labeled liposomes in PMA-primed THP-1 cells using a confocal laser scanning microscope. It was shown that for fusogenic liposomes, colocalization with plasma membrane occurred at the same time as calcium elevation, whereas for liposomes with a high endocytosis potential, fluorescent dots were observed in the cytoplasm, suggesting the cell internalization by endocytosis. These results suggested that the calcium response patterns correspond to cell entry routes, and membrane fusion can be observed by calcium imaging.
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Affiliation(s)
- Morihiro Hotta
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Kengo Hayase
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Aya Kitanaka
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Tianshu Li
- Institute for Advanced Research of Biosystem Dynamics, Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
| | - Shinji Takeoka
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University (TWIns), 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo, 162-8480, Japan
- Institute for Advanced Research of Biosystem Dynamics, Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo, 169-8555, Japan
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16
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Tureckova J, Hermanova Z, Marchetti V, Anderova M. Astrocytic TRPV4 Channels and Their Role in Brain Ischemia. Int J Mol Sci 2023; 24:ijms24087101. [PMID: 37108263 PMCID: PMC10138480 DOI: 10.3390/ijms24087101] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/06/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Transient receptor potential cation channels subfamily V member 4 (TRPV4) are non-selective cation channels expressed in different cell types of the central nervous system. These channels can be activated by diverse physical and chemical stimuli, including heat and mechanical stress. In astrocytes, they are involved in the modulation of neuronal excitability, control of blood flow, and brain edema formation. All these processes are significantly impaired in cerebral ischemia due to insufficient blood supply to the tissue, resulting in energy depletion, ionic disbalance, and excitotoxicity. The polymodal cation channel TRPV4, which mediates Ca2+ influx into the cell because of activation by various stimuli, is one of the potential therapeutic targets in the treatment of cerebral ischemia. However, its expression and function vary significantly between brain cell types, and therefore, the effect of its modulation in healthy tissue and pathology needs to be carefully studied and evaluated. In this review, we provide a summary of available information on TRPV4 channels and their expression in healthy and injured neural cells, with a particular focus on their role in ischemic brain injury.
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Affiliation(s)
- Jana Tureckova
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
| | - Zuzana Hermanova
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
- Second Faculty of Medicine, Charles University, 84 V Uvalu, 150 06 Prague, Czech Republic
| | - Valeria Marchetti
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
- Second Faculty of Medicine, Charles University, 84 V Uvalu, 150 06 Prague, Czech Republic
| | - Miroslava Anderova
- Institute of Experimental Medicine, Czech Academy of Sciences, 1083 Videnska, 142 20 Prague, Czech Republic
- Second Faculty of Medicine, Charles University, 84 V Uvalu, 150 06 Prague, Czech Republic
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17
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Blockage of TRPV4 Downregulates the Nuclear Factor-Kappa B Signaling Pathway to Inhibit Inflammatory Responses and Neuronal Death in Mice with Pilocarpine-Induced Status Epilepticus. Cell Mol Neurobiol 2023; 43:1283-1300. [PMID: 35840809 DOI: 10.1007/s10571-022-01249-w] [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: 10/28/2021] [Accepted: 06/25/2022] [Indexed: 11/03/2022]
Abstract
The blockage of transient receptor potential vanilloid 4 (TRPV4) inhibits inflammation and reduces hippocampal neuronal injury in a pilocarpine-induced mouse model of temporal lobe epilepsy. However, the underlying mechanisms remain largely unclear. NF-κB signaling pathway is responsible for the inflammation and neuronal injury during epilepsy. Here, we explored whether TRPV4 blockage could affect the NF-κB pathway in mice with pilocarpine-induced status epilepticus (PISE). Application of a TRPV4 antagonist markedly attenuated the PISE-induced increase in hippocampal HMGB1, TLR4, phospho (p)-IκK (p-IκK), and p-IκBα protein levels, as well as those of cytoplasmic p-NF-κB p65 (p-p65) and nuclear NF-κB p65 and p50; in contrast, the application of GSK1016790A, a TRPV4 agonist, showed similar changes to PISE mice. Administration of the TLR4 antagonist TAK-242 or the NF-κB pathway inhibitor BAY 11-7082 led to a noticeable reduction in the hippocampal protein levels of cleaved IL-1β, IL-6 and TNF, as well as those of cytoplasmic p-p65 and nuclear p65 and p50 in GSK1016790A-injected mice. Finally, administration of either TAK-242 or BAY 11-7082 greatly increased neuronal survival in hippocampal CA1 and CA2/3 regions in GSK1016790A-injected mice. Therefore, TRPV4 activation increases HMGB1 and TLR4 expression, leading to IκK and IκBα phosphorylation and, consequently, NF-κB activation and nuclear translocation. The resulting increase in pro-inflammatory cytokine production is responsible for TRPV4 activation-induced neuronal injury. We conclude that blocking TRPV4 can downregulate HMGB1/TLR4/IκK/κBα/NF-κB signaling following PISE onset, an effect that may underlie the anti-inflammatory response and neuroprotective ability of TRPV4 blockage in mice with PISE.
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18
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Vander Does A, Ju T, Mohsin N, Chopra D, Yosipovitch G. How to get rid of itching. Pharmacol Ther 2023; 243:108355. [PMID: 36739914 DOI: 10.1016/j.pharmthera.2023.108355] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/01/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
Itch is an unpleasant sensation arising from a variety of dermatologic, neuropathic, systemic, and psychogenic etiologies. Various itch pathways are implicated according to the underlying etiology. A variety of pruritogens, or itch mediators, as well as receptors have been identified and provide potential therapeutic targets. Recent research has primarily focused on targeting inflammatory cytokines and Janus kinase signaling, protease-activated receptors, substance P and neurokinin, transient receptor potential-vanilloid ion channels, Mas-related G-protein-coupled receptors (MRGPRX2 and MRGPRX4), the endogenous opioid and cannabinoid balance, and phosphodiesterase 4. Periostin, a newly identified pruritogen, should be further explored with clinical trials. Drugs targeting neural sensitization including the gabergic system and P2X3 are other potential drugs for chronic itch. There is a need for more targeted therapies to improve clinical outcomes and reduce side effects.
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Affiliation(s)
- Ashley Vander Does
- Dr Phillip Frost Department of Dermatology and Miami Itch Center, University of Miami, Miami, FL, USA
| | - Teresa Ju
- Dr Phillip Frost Department of Dermatology and Miami Itch Center, University of Miami, Miami, FL, USA
| | - Noreen Mohsin
- Dr Phillip Frost Department of Dermatology and Miami Itch Center, University of Miami, Miami, FL, USA
| | - Divya Chopra
- Dr Phillip Frost Department of Dermatology and Miami Itch Center, University of Miami, Miami, FL, USA
| | - Gil Yosipovitch
- Dr Phillip Frost Department of Dermatology and Miami Itch Center, University of Miami, Miami, FL, USA.
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19
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Study on the role of calcium channel protein TRPV4 in the inflammatory pathway of type 2 diabetic adipose tissue based on gene databases. Biochem Biophys Res Commun 2023; 639:161-168. [PMID: 36495765 DOI: 10.1016/j.bbrc.2022.11.078] [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: 11/07/2022] [Revised: 11/15/2022] [Accepted: 11/25/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Chronic inflammation of adipose tissue may be one of the key factors contributing to the development of insulin resistance in T2DM adipose tissue. Transient receptor potential vanilloid type 4 (TRPV4) can be involved in a variety of cellular inflammatory responses. In this study, we evaluated the role of TRPV4 channelin in the T2DM adipose tissue inflammatory pathway. METHODS Based on the gene expression profiling data of the public database, bioinformatics methods were used to screen the target gene population of the TRPV4 channel protein involved in the regulation of T2DM fat cells. A mature adipocyte model was constructed to verify the expression level of target genes and to evaluate the regulatory effect of TRPV4 channel inhibition on target genes of inflammation-related pathways. RESULTS In shTRPV4 adipocytes, 144 genes with downregulation expression were screened, a PPI network was constructed and a core module containing 15 genes was screened out, and the core genes were mainly enriched in the Toll-like receptor signaling pathway through enrichment analysis. Constructing a mature adipocyte model found that the TRPV4 inhibitor HC067047 inhibited the effect of upregulation of the expression level of the relevant gene in the signaling pathway. CONCLUSIONS Our findings suggest that the expression of highly expressed pro-inflammatory cytokines and chemokines in T2DM adipose tissue decreases after inhibiting the expression of TRPV4 in adipocytes, suggesting that TRPV4 may become a potential drug target for the treatment of T2DM.
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20
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Schuster R, Younesi F, Ezzo M, Hinz B. The Role of Myofibroblasts in Physiological and Pathological Tissue Repair. Cold Spring Harb Perspect Biol 2023; 15:cshperspect.a041231. [PMID: 36123034 PMCID: PMC9808581 DOI: 10.1101/cshperspect.a041231] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Myofibroblasts are the construction workers of wound healing and repair damaged tissues by producing and organizing collagen/extracellular matrix (ECM) into scar tissue. Scar tissue effectively and quickly restores the mechanical integrity of lost tissue architecture but comes at the price of lost tissue functionality. Fibrotic diseases caused by excessive or persistent myofibroblast activity can lead to organ failure. This review defines myofibroblast terminology, phenotypic characteristics, and functions. We will focus on the central role of the cell, ECM, and tissue mechanics in regulating tissue repair by controlling myofibroblast action. Additionally, we will discuss how therapies based on mechanical intervention potentially ameliorate wound healing outcomes. Although myofibroblast physiology and pathology affect all organs, we will emphasize cutaneous wound healing and hypertrophic scarring as paradigms for normal tissue repair versus fibrosis. A central message of this review is that myofibroblasts can be activated from multiple cell sources, varying with local environment and type of injury, to either restore tissue integrity and organ function or create an inappropriate mechanical environment.
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Affiliation(s)
- Ronen Schuster
- Faculty of Dentistry, University of Toronto, Toronto, M5S 3E2 Ontario, Canada
| | - Fereshteh Younesi
- Faculty of Dentistry, University of Toronto, Toronto, M5S 3E2 Ontario, Canada.,Laboratory of Tissue Repair and Regeneration, Keenan Research Centre for Biomedical Science of the St. Michael's Hospital, Toronto, Ontario M5B 1T8, Canada
| | - Maya Ezzo
- Faculty of Dentistry, University of Toronto, Toronto, M5S 3E2 Ontario, Canada.,Laboratory of Tissue Repair and Regeneration, Keenan Research Centre for Biomedical Science of the St. Michael's Hospital, Toronto, Ontario M5B 1T8, Canada
| | - Boris Hinz
- Faculty of Dentistry, University of Toronto, Toronto, M5S 3E2 Ontario, Canada.,Laboratory of Tissue Repair and Regeneration, Keenan Research Centre for Biomedical Science of the St. Michael's Hospital, Toronto, Ontario M5B 1T8, Canada
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21
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He Z, Yang C, Jiang D, Wang X, Xing Z, Yu S, Yang Q, Wang L. The expression profile of a multi-stress inducible transient receptor potential vanilloid 4 (TRPV4) in Pacific oyster Crassostrea gigas. FISH AND SHELLFISH IMMUNOLOGY REPORTS 2022; 3:100064. [PMID: 36419610 PMCID: PMC9680104 DOI: 10.1016/j.fsirep.2022.100064] [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: 08/05/2022] [Revised: 08/11/2022] [Accepted: 08/12/2022] [Indexed: 12/05/2022] Open
Abstract
CgTRPV4 with typical structural characteristics was indentified from Crassostrea gigas. CgTRPV4 was located in both endoplasmic reticulum and cytoplasmic membrane of oyster haemocytes. CgTRPV4 mRNA was ubiquitously expressed with the highest level in gill. The expression of CgTRPV4 mRNA was significantly up-regulated after high temperature stress at 30°C or V. splendidus stimulation.
Transient receptor potential vanilloid 4 (TRPV4) is one of the major non-selective cation channel proteins, which plays a crucial role in sensing biotic and abiotic stresses, such as pathogen infection, temperature, mechanical pressure and osmotic pressure changes by regulating Ca2+ homeostasis. In the present study, a TRPV4 homologue was identified in Pacific oyster Crassostrea gigas, designated as CgTRPV4. The open reading frame (ORF) of CgTRPV4 was of 2298 bp encoding a putative polypeptide of 765 amino acid residues with three typical ankyrin domains and six conserved transmembrane domains of TRPV4 subfamily proteins, as well as multiple N-glycosylation sites, cAMP- and cGMP-dependent protein kinase phosphorylation sites, protein kinase C phosphorylation sites, casein kinase II phosphorylation sites, and prokaryotic membrane lipoprotein lipid attachment site. The deduced amino acid sequence of CgTRPV4 shared 20.5%-26.2% similarity with TRPV4s from other species. During the early ontogenesis stages of oyster, the mRNA transcripts of CgTRPV4 were detectable in all the stages with the highest expression level in fertilized eggs and the lowest in D-hinged larvae. In adult oyster, the CgTRPV4 mRNA could be detected in all the examined tissues, including gill, hepatopancreas, adductor muscle, labial palp, mantle and haemocyte, with the highest expression level in gill (45.08-fold of that in hepatopancreas, p < 0.05). In immunocytochemical assay, the CgTRPV4 positive signals were distributed in both endoplasmic reticulum and cytoplasmic membrane of oyster haemocytes. The mRNA expression of CgTRPV4 in gill was significantly up-regulated after high temperature stress at 30°C (p < 0.05) and after Vibrio splendidus stimulation (p < 0.05). These results indicated that CgTRPV4 was a classical member of TRPV4 family in oyster, which was induced by either biotic or abiotic stimulations and involved in mediating the stress response of oysters.
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22
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Blocking TRPV4 Ameliorates Osteoarthritis by Inhibiting M1 Macrophage Polarization via the ROS/NLRP3 Signaling Pathway. Antioxidants (Basel) 2022; 11:antiox11122315. [PMID: 36552524 PMCID: PMC9774183 DOI: 10.3390/antiox11122315] [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: 10/20/2022] [Revised: 11/12/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Osteoarthritis (OA) is a low-level inflammatory disease in which synovial macrophage M1 polarization exacerbates the progression of synovitis and OA. Notedly, the ROS (reactive oxygen species) level in macrophages is intimately implicated in macrophage M1 polarization. TRPV4 (transient receptor potential channel subfamily V member 4), as an ion channel, plays a pivotal role in oxidative stress and inflammation. In this study, we investigated the role of TRPV4 in OA progression and M1 macrophage polarization. Male adult Sprague-Dawley (SD) rats underwent a medial meniscus radial transection operation to create an OA model in vivo and RAW 264.7 cells were intervened with 100 ng/mL LPS (lipopolysaccharide) to induce M1-polarized macrophages in vitro. We demonstrated that the infiltration of M1 synovial macrophages and the expression of TRPV4 were increased significantly in OA synovium. In addition, intra-articular injection of HC067074 (a specific inhibitor of TRPV4) alleviated the progression of rat OA and significantly decreased synovial macrophage M1 polarization. Further mechanisms suggested that ROS production by M1 macrophages was decreased after TRPV4 inhibition. In addition, NLRP3 (pyrin domain containing protein 3) as a downstream effector of ROS in M1-polarized macrophage, was significantly suppressed following TRPV4 inhibition. In conclusion, this study discovered that inhibition of TRPV4 delays OA progression by inhibiting M1 synovial macrophage polarization through the ROS/NLRP3 pathway.
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23
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Zou X, Liu S, Zou H, Zhou W, Fu H, Wei J, Zhang J, Zeng H, Tan T, Zhou W, Wu H, Chen X, Zhou X. Inflammatory mechanisms of Ginkgo Biloba extract in improving memory functions through lncRNA-COX2/NF-κB pathway in mice with status epilepticus. CNS Neurosci Ther 2022; 29:471-482. [PMID: 36419341 PMCID: PMC9804085 DOI: 10.1111/cns.14019] [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: 04/28/2022] [Revised: 09/20/2022] [Accepted: 09/29/2022] [Indexed: 11/25/2022] Open
Abstract
PURPOSE This study was to explore whether Ginkgo biloba extract (GBE) improve memory impairment by alleviating neuroinflammation signaling in mice with status epilepticus. METHODS The status epilepticus (SE) mice model was established by pilocarpine and treated with 100 mg / kg of GBE for 14 days. Spontaneous alternation of Y-maze and new object recognition were used to explore memory impairment. To examine glial cell activation, we performed immunohistochemistry and immunofluorescence staining. The activation of NF-κB signaling and the expression level of lncRNA-COX2 were detected by Western blot and qRT-PCR, respectively. Adeno-associated virus lncRNA-COX2 was injected into mice for overexpression of lncRNA-COX2. RESULTS After GBE treatment, the spontaneous alternation rate and the recognition coefficient in SE mice were both increased. Moreover, activation of glial cells, NF-κB signaling and lncRNA-COX2 were significantly decreased in SE mice. In the GBE-treated SE mice with lncRNA-COX2 overexpression, NF-κB signaling was up-regulated again; the reduced level of inflammation factors was reversed; the GBE-rescued spontaneous alternation rate of Y-maze was eliminated. CONCLUSION Our results suggested that GBE reduces the hippocampal inflammation by down-regulating lncRNA-COX2 / NF-κB signaling in the SE mice, leading to the decrease of neuronal damage and the improvement of memory functions.
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Affiliation(s)
- Xiaopei Zou
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Si Liu
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Huihui Zou
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Wanfei Zhou
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Huaili Fu
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Jiana Wei
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Jiakang Zhang
- Cancer Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Haoxuan Zeng
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Tian Tan
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Wenbin Zhou
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Heyong Wu
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
| | - Xinrun Chen
- Department of Clinical medicineThe First Clinical College of Guangzhou Medical UniversityGuangzhouChina
| | - Xianju Zhou
- Special Medical Service Center, Neuroscience Center, Integrated Hospital of Traditional Chinese MedicineSouthern Medical UniversityGuangzhouChina
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24
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Abstract
The efficacy of implanted biomaterials is largely dependent on the response of the host's immune and stromal cells. Severe foreign body response (FBR) can impede the integration of the implant into the host tissue and compromise the intended mechanical and biochemical function. Many features of FBR, including late-stage fibrotic encapsulation of implants, parallel the formation of fibrotic scar tissue after tissue injury. Regenerative organisms like zebrafish and salamanders can avoid fibrosis after injury entirely, but FBR in these research organisms is rarely investigated because their immune competence is much lower than humans. The recent characterization of a regenerative mammal, the spiny mouse (Acomys), has inspired us to take a closer look at cellular regulation in regenerative organisms across the animal kingdom for insights into avoiding FBR in humans. Here, we highlight how major features of regeneration, such as blastema formation, macrophage polarization, and matrix composition, can be modulated across a range of regenerative research organisms to elucidate common features that may be harnessed to minimize FBR. Leveraging a deeper understanding of regenerative biology for biomaterial design may help to reduce FBR and improve device integration and performance.
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Affiliation(s)
- Sunaina Sapru
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Michele N Dill
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Chelsey S Simmons
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, United States.,J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, United States
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25
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Gu P, Lu Y, Li S, Ma C. A Label-Free Fluorescence Aptasensor Based on G-Quadruplex/Thioflavin T Complex for the Detection of Trypsin. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27186093. [PMID: 36144829 PMCID: PMC9503660 DOI: 10.3390/molecules27186093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/16/2022] [Accepted: 09/16/2022] [Indexed: 11/30/2022]
Abstract
A novel, label-free fluorescent assay has been developed for the detection of trypsin by using thioflavin T as a fluorescent probe. A specific DNA aptamer can be combined by adding cytochrome c. Trypsin hydrolyzes the cytochrome c into small peptide fragments, exposing the G-quadruplex part of DNA aptamer, which has a high affinity for thioflavin T, which then enhances the fluorescence intensity. In the absence of trypsin, the fluorescence intensity was inhibited as the combination of cytochrome c and the DNA aptamer impeded thioflavin T’s binding. Thus, the fluorescent biosensor showed a linear relationship from 0.2 to 60 μg/mL with a detection limit of 0.2 μg/mL. Furthermore, the proposed method was also successfully employed for determining trypsin in biological samples. This method is simple, rapid, cheap, and selective and possesses great potential for the detection of trypsin in bioanalytical and biological samples and medical diagnoses.
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26
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Downregulation of IL-8 and IL-10 by the Activation of Ca2+-Activated K+ Channel KCa3.1 in THP-1-Derived M2 Macrophages. Int J Mol Sci 2022; 23:ijms23158603. [PMID: 35955737 PMCID: PMC9368915 DOI: 10.3390/ijms23158603] [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: 07/21/2022] [Accepted: 07/26/2022] [Indexed: 02/04/2023] Open
Abstract
THP-1-differentiated macrophages are useful for investigating the physiological significance of tumor-associated macrophages (TAMs). In the tumor microenvironment (TME), TAMs with the M2-like phenotype play a critical role in promoting cancer progression and metastasis by inhibiting the immune surveillance system. We examined the involvement of Ca2+-activated K+ channel KCa3.1 in TAMs in expressing pro-tumorigenic cytokines and angiogenic growth factors. In THP-1-derived M2 macrophages, the expression levels of IL-8 and IL-10 were significantly decreased by treatment with the selective KCa3.1 activator, SKA-121, without changes in those of VEGF and TGF-β1. Furthermore, under in vitro experimental conditions that mimic extracellular K+ levels in the TME, IL-8 and IL-10 levels were both significantly elevated, and these increases were reversed by combined treatment with SKA-121. Among several signaling pathways potentially involved in the transcriptional regulation of IL-8 and IL-10, respective treatments with ERK and JNK inhibitors significantly repressed their transcriptions, and treatment with SKA-121 significantly reduced the phosphorylated ERK, JNK, c-Jun, and CREB levels. These results strongly suggest that the KCa3.1 activator may suppress IL-10-induced tumor immune surveillance escape and IL-8-induced tumorigenicity and metastasis by inhibiting their production from TAMs through ERK-CREB and JNK-c-Jun cascades.
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27
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Beeken J, Mertens M, Stas N, Kessels S, Aerts L, Janssen B, Mussen F, Pinto S, Vennekens R, Rigo JM, Nguyen L, Brône B, Alpizar YA. Acute inhibition of transient receptor potential vanilloid-type 4 cation channel halts cytoskeletal dynamism in microglia. Glia 2022; 70:2157-2168. [PMID: 35809029 DOI: 10.1002/glia.24243] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 01/04/2023]
Abstract
Microglia, the resident macrophages of the central nervous system, are highly motile cells that support brain development, provision neuronal signaling, and protect brain cells against damage. Proper microglial functioning requires constant cell movement and morphological changes. Interestingly, the transient receptor potential vanilloid 4 (TRPV4) channel, a calcium-permeable channel, is involved in hypoosmotic morphological changes of retinal microglia and regulates temperature-dependent movement of microglial cells both in vitro and in vivo. Despite the broad functions of TRPV4 and the recent findings stating a role for TRPV4 in microglial movement, little is known about how TRPV4 modulates cytoskeletal remodeling to promote changes of microglial motility. Here we show that acute inhibition of TRPV4, but not its constitutive absence in the Trpv4 KO cells, affects the morphology and motility of microglia in vitro. Using high-end confocal imaging techniques, we show a decrease in actin-rich filopodia and tubulin dynamics upon acute inhibition of TRPV4 in vitro. Furthermore, using acute brain slices we demonstrate that Trpv4 knockout microglia display lower ramification complexity, slower process extension speed and consequently smaller surveyed area. We conclude that TRPV4 inhibition triggers a shift in cytoskeleton remodeling of microglia influencing their migration and morphology.
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Affiliation(s)
- Jolien Beeken
- UHasselt, BIOMED, Diepenbeek, Belgium.,Université de Liège, GIGA-Stem-Cells, Liège, Belgium
| | | | | | | | | | | | | | - Silvia Pinto
- Laboratory of Ion Channel Research, VIB-KU Leuven, Leuven, Belgium
| | - Rudi Vennekens
- Laboratory of Ion Channel Research, VIB-KU Leuven, Leuven, Belgium
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28
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Ketamine administration ameliorates anesthesia and surgery‑induced cognitive dysfunction via activation of TRPV4 channel opening. Exp Ther Med 2022; 24:478. [PMID: 35761804 PMCID: PMC9214599 DOI: 10.3892/etm.2022.11405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/16/2022] [Indexed: 11/05/2022] Open
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29
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Xie Y, Yu L, Cheng Z, Peng Y, Cao Z, Chen B, Duan Y, Wang Y. SHED-derived exosomes promote LPS-induced wound healing with less itching by stimulating macrophage autophagy. J Nanobiotechnology 2022; 20:239. [PMID: 35597946 PMCID: PMC9124392 DOI: 10.1186/s12951-022-01446-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 04/29/2022] [Indexed: 12/15/2022] Open
Abstract
High-quality cutaneous wound healing is associated with rapid wound closure and a comfortable healing process. Currently, exosomes derived from mesenchymal stem cells displayed a prominent therapeutic effect on skin wound closure. But the therapeutic approaches for wound itching are very limited in clinical. Stem cells from human exfoliated deciduous teeth (SHED) may offer a unique exosome resource for cell-free therapeutics in potential clinical applications. Here, we investigated the common mechanisms underlying wound closure and unpleasant sensation of itching, focusing on the contribution of the SHED-derived exosome to immune response and wound itching during healing. The effects of SHED-derived exosomes on inflammatory wound healing were examined using lipopolysaccharide (LPS)-induced wounds in a mouse model. We found prolonged inflammation and distinct itch responses in skin wound tissue during LPS-induced wound healing. SHED-derived exosomes facilitated LPS-induced wound closure and relieved wound itching. Therefore, they are ideal for the treatment of wound healing. Macrophages in skin wound tissues are responsible for autophagy during wound healing. Macrophage autophagy also regulates cell proliferation, migration, and neuronal signal transduction in vitro. SHED-derived exosomes containing miR-1246 enhanced autophagy by regulating macrophage function through the AKT, ERK1/2, and STAT3 signaling pathways. Thus, SHED-derived exosomes promote wound healing with less itching in an LPS-induced wound model by stimulating macrophage autophagy, which has implications for the treatment of inflammatory wound healing.
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Affiliation(s)
- Yunyi Xie
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Le Yu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Zhilan Cheng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Yingying Peng
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Zeyuan Cao
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Beichen Chen
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Yihong Duan
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China
| | - Yan Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Stomatology, 56 Lingyuanxi Road, Guangzhou, 510055, People's Republic of China.
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30
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Saika S, Veldhuis N, Križaj D, Rahaman SO. Editorial: New Insights into Mechanotransduction by Immune Cells in Physiological and Pathological Conditions. Front Immunol 2022; 13:930362. [PMID: 35669790 PMCID: PMC9164129 DOI: 10.3389/fimmu.2022.930362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 04/29/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Shizuya Saika
- Department of Ophthalmology, Wakayama Medical University, Wakayama, Japan
| | - Nicholas Veldhuis
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - David Križaj
- Department of Ophthalmology, University of Utah School of Medicine, Salt Lake City, UT, United States
| | - Shaik O. Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, United States
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31
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Mukherjee P, Rahaman SG, Goswami R, Dutta B, Mahanty M, Rahaman SO. Role of mechanosensitive channels/receptors in atherosclerosis. Am J Physiol Cell Physiol 2022; 322:C927-C938. [PMID: 35353635 PMCID: PMC9109792 DOI: 10.1152/ajpcell.00396.2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/09/2022] [Accepted: 03/22/2022] [Indexed: 11/22/2022]
Abstract
Mechanical forces are critical physical cues that can affect numerous cellular processes regulating the development, tissue maintenance, and functionality of cells. The contribution of mechanical forces is especially crucial in the vascular system where it is required for embryogenesis and for maintenance of physiological function in vascular cells including aortic endothelial cells, resident macrophages, and smooth muscle cells. Emerging evidence has also identified a role of these mechanical cues in pathological conditions of the vascular system such as atherosclerosis and associated diseases like hypertension. Of the different mechanotransducers, mechanosensitive ion channels/receptors are gaining prominence due to their involvement in numerous physiological and pathological conditions. However, only a handful of potential mechanosensory ion channels/receptors have been shown to be involved in atherosclerosis, and their precise role in disease development and progression remains poorly understood. Here, we provide a comprehensive account of recent studies investigating the role of mechanosensitive ion channels/receptors in atherosclerosis. We discuss the different groups of mechanosensitive proteins and their specific roles in inflammation, endothelial dysfunction, macrophage foam cell formation, and lesion development, which are crucial for the development and progression of atherosclerosis. Results of the studies discussed here will help in developing an understanding of the current state of mechanobiology in vascular diseases, specifically in atherosclerosis, which may be important for the development of innovative and targeted therapeutics for this disease.
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Affiliation(s)
- Pritha Mukherjee
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland
| | | | - Rishov Goswami
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland
| | - Bidisha Dutta
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland
| | - Manisha Mahanty
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland
| | - Shaik O Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland
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32
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Swain SM, Romac JMJ, Vigna SR, Liddle RA. Piezo1-mediated stellate cell activation causes pressure-induced pancreatic fibrosis in mice. JCI Insight 2022; 7:158288. [PMID: 35451372 PMCID: PMC9089793 DOI: 10.1172/jci.insight.158288] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/02/2022] [Indexed: 11/17/2022] Open
Abstract
Pancreatic fibrosis is a complication of chronic pancreatitis and is a prominent feature of pancreatic cancer. Pancreatic fibrosis is commonly observed in patients with prolonged pancreatic duct obstruction, which elevates intrapancreatic pressure. We show here that increased pancreatic duct pressure causes fibrosis and describes the mechanism by which pressure increases deposition of extracellular matrix proteins and fibrosis. We found that pancreatic stellate cells (PSCs), the source of the extracellular matrix proteins in fibrosis, express the mechanically activated ion channel Piezo1. By increasing intracellular calcium, mechanical stress or the Piezo1 agonist Yoda1-activated PSCs manifest by loss of perinuclear fat droplets and increased TGF-β1, fibronectin, and type I collagen expression. These effects were blocked by the Piezo1 inhibitor GsMTx4 and absent in PSCs from mice with conditional genetic deletion of Piezo1 in stellate cells, as was pancreatic duct ligation-induced fibrosis. Although TRPV4 has been proposed to have direct mechanosensing properties, we discovered that PSCs from Trpv4-KO mice were protected against Yoda1-triggered activation. Moreover, mice devoid of TRPV4 were protected from pancreatic duct ligation-induced fibrosis. Thus, high pressure within the pancreas stimulates Piezo1 channel opening, and subsequent activation of TRPV4 leads to stellate cell activation and pressure-induced chronic pancreatitis and fibrosis.
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Affiliation(s)
- Sandip M Swain
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | - Joelle M-J Romac
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | - Steven R Vigna
- Department of Medicine, Duke University, Durham, North Carolina, USA
| | - Rodger A Liddle
- Department of Medicine, Duke University, Durham, North Carolina, USA.,Department of Veterans Affairs Healthcare System, Durham, North Carolina, USA
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33
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Nguyen TN, Siddiqui G, Veldhuis NA, Poole DP. Diverse Roles of TRPV4 in Macrophages: A Need for Unbiased Profiling. Front Immunol 2022; 12:828115. [PMID: 35126384 PMCID: PMC8811046 DOI: 10.3389/fimmu.2021.828115] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/24/2021] [Indexed: 12/27/2022] Open
Abstract
Transient receptor potential vanilloid 4 (TRPV4) is a non-selective mechanosensitive ion channel expressed by various macrophage populations. Recent reports have characterized the role of TRPV4 in shaping the activity and phenotype of macrophages to influence the innate immune response to pathogen exposure and inflammation. TRPV4 has been studied extensively in the context of inflammation and inflammatory pain. Although TRPV4 activity has been generally described as pro-inflammatory, emerging evidence suggests a more complex role where this channel may also contribute to anti-inflammatory activities. However, detailed understanding of how TRPV4 may influence the initiation, maintenance, and resolution of inflammatory disease remains limited. This review highlights recent insights into the cellular processes through which TRPV4 contributes to pathological conditions and immune processes, with a focus on macrophage biology. The potential use of high-throughput and omics methods as an unbiased approach for studying the functional outcomes of TRPV4 activation is also discussed.
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Affiliation(s)
- Thanh-Nhan Nguyen
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- Australian Research Council (ARC) Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash University, Parkville, VIC, Australia
| | - Ghizal Siddiqui
- Drug Delivery, Disposition and Dynamics Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Nicholas A. Veldhuis
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- Australian Research Council (ARC) Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash University, Parkville, VIC, Australia
- *Correspondence: Daniel P. Poole, ; Nicholas A. Veldhuis,
| | - Daniel P. Poole
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
- Australian Research Council (ARC) Centre of Excellence in Convergent Bio-Nano Science & Technology, Monash University, Parkville, VIC, Australia
- *Correspondence: Daniel P. Poole, ; Nicholas A. Veldhuis,
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34
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Shirolkar P, Mishra SK. Role of TRP ion channels in pruritus. Neurosci Lett 2022; 768:136379. [PMID: 34861341 PMCID: PMC8755431 DOI: 10.1016/j.neulet.2021.136379] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 01/21/2023]
Abstract
The transient receptor potential (TRP) channel superfamily responds to various physical, chemical, and environmental stimuli including the detection of sensations both harmful and non-harmful. Among these sensations is pruritus, or itch. There are at least 27 different TRP channels and about six of them are involved in pruriception. The function of these six receptors is primarily seen in the skin and the dorsal root ganglia. Identification and biological insights provided by these receptors in pruriception is important for human health as mutations and activations of many of these channels cause discomfort and disease. This review will focus on involvement of TRP channels in pruriception that may render these channels as the targets of many antagonistic topical medications, which may help patients' better cope with the pruritus that results from various cutaneous and systemic diseases.
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Affiliation(s)
- Parth Shirolkar
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
| | - Santosh K. Mishra
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA,Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA,The WM Keck Behavioral Center, North Carolina State University, Raleigh, NC, USA,Program in Genetics, North Carolina State University, Raleigh, NC, USA
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35
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Abstract
The alveolo-capillary barrier is relatively impermeable, and facilitates gas exchange via the large alveolar surface in the lung. Disruption of alveolo-capillary barrier leads to accumulation of edema fluid in lung injury. Studies in animal models of various forms of lung injury provide evidence that TRPV4 channels play a critical role in disruption of the alveolo-capillary barrier and pathogenesis of lung injury. TRPV4 channels from capillary endothelial cells, alveolar epithelial cells, and immune cells have been implicated in the pathogenesis of lung injury. Recent studies in endothelium-specific TRPV4 knockout mice point to a central role for endothelial TRPV4 channels in lung injury. In this chapter, we review the findings on the pathological roles of endothelial TRPV4 channels in different forms of lung injury and future directions for further investigation.
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36
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Goswami R, Arya RK, Sharma S, Dutta B, Stamov DR, Zhu X, Rahaman SO. Mechanosensing by TRPV4 mediates stiffness-induced foreign body response and giant cell formation. Sci Signal 2021; 14:eabd4077. [PMID: 34726952 PMCID: PMC9976933 DOI: 10.1126/scisignal.abd4077] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Implantation of biomaterials or devices into soft tissue often leads to the development of the foreign body response (FBR), an inflammatory condition that can cause implant failure, tissue injury, and death of the patient. Macrophages accumulate and fuse to generate destructive foreign body giant cells (FBGCs) at the tissue-implant interface, leading to the development of fibrous scar tissue around the implant that is generated by myofibroblasts. We previously showed that the FBR in vivo and FBGC formation in vitro require transient receptor potential vanilloid 4 (TRPV4), a mechanosensitive ion channel. Here, we report that TRPV4 was required specifically for the FBR induced by implant stiffness independently of biochemical cues and for intracellular stiffening that promotes FBGC formation in vitro. TRPV4 deficiency reduced collagen deposition and the accumulation of macrophages, FBGCs, and myofibroblasts at stiff, but not soft, implants in vivo and inhibited macrophage-induced differentiation of wild-type fibroblasts into myofibroblasts in vitro. Atomic force microscopy demonstrated that TRPV4 was required for implant-adjacent tissue stiffening in vivo and for cytoskeletal remodeling and intracellular stiffening induced by fusogenic cytokines in vitro. Together, these data suggest a mechanism whereby a reciprocal functional interaction between TRPV4 and substrate stiffness leads to cytoskeletal remodeling and cellular force generation to promote FBGC formation during the FBR.
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Affiliation(s)
- Rishov Goswami
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA
| | - Rakesh K. Arya
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA
| | - Shweta Sharma
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA
| | - Bidisha Dutta
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA
| | - Dimitar R. Stamov
- JPK BioAFM Business, Nano Surfaces Division, Bruker Nano GmbH, Am Studio 2D, 12489 Berlin, Germany
| | - Xiaoping Zhu
- Department of Veterinary Medicine, University of Maryland, College Park, MD 20742, USA
| | - Shaik O. Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA.,Corresponding author.:
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37
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Klimak M, Nims RJ, Pferdehirt L, Collins KH, Harasymowicz NS, Oswald SJ, Setton LA, Guilak F. Immunoengineering the next generation of arthritis therapies. Acta Biomater 2021; 133:74-86. [PMID: 33823324 DOI: 10.1016/j.actbio.2021.03.062] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 03/08/2021] [Accepted: 03/25/2021] [Indexed: 12/15/2022]
Abstract
Immunoengineering continues to revolutionize healthcare, generating new approaches for treating previously intractable diseases, particularly in regard to cancer immunotherapy. In joint diseases, such as osteoarthritis (OA) and rheumatoid arthritis (RA), biomaterials and anti-cytokine treatments have previously been at that forefront of therapeutic innovation. However, while many of the existing anti-cytokine treatments are successful for a subset of patients, these treatments can also pose severe risks, adverse events and off-target effects due to continuous delivery at high dosages or a lack of disease-specific targets. The inadequacy of these current treatments has motivated the development of new immunoengineering strategies that offer safer and more efficacious alternative therapies through the precise and controlled targeting of specific upstream immune responses, including direct and mechanistically-driven immunoengineering approaches. Advances in the understanding of the immunomodulatory pathways involved in musculoskeletal disease, in combination with the growing emphasis on personalized medicine, stress the need for carefully considering the delivery strategies and therapeutic targets when designing therapeutics to better treat RA and OA. Here, we focus on recent advances in biomaterial and cell-based immunomodulation, in combination with genetic engineering, for therapeutic applications in joint diseases. The application of immunoengineering principles to the study of joint disease will not only help to elucidate the mechanisms of disease pathogenesis but will also generate novel disease-specific therapeutics by harnessing cellular and biomaterial responses. STATEMENT OF SIGNIFICANCE: It is now apparent that joint diseases such as osteoarthritis and rheumatoid arthritis involve the immune system at both local (i.e., within the joint) and systemic levels. In this regard, targeting the immune system using both biomaterial-based or cellular approaches may generate new joint-specific treatment strategies that are well-controlled, safe, and efficacious. In this review, we focus on recent advances in immunoengineering that leverage biomaterials and/or genetically engineered cells for therapeutic applications in joint diseases. The application of such approaches, especially synergistic strategies that target multiple immunoregulatory pathways, has the potential to revolutionize our understanding, treatment, and prevention of joint diseases.
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Affiliation(s)
- Molly Klimak
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Robert J Nims
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Lara Pferdehirt
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Kelsey H Collins
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Natalia S Harasymowicz
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Sara J Oswald
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Lori A Setton
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO 63110, USA; Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University, St. Louis, MO 63110, USA; Center of Regenerative Medicine, Washington University, St. Louis, MO 63110, USA.
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Wong NR, Mohan J, Kopecky BJ, Guo S, Du L, Leid J, Feng G, Lokshina I, Dmytrenko O, Luehmann H, Bajpai G, Ewald L, Bell L, Patel N, Bredemeyer A, Weinheimer CJ, Nigro JM, Kovacs A, Morimoto S, Bayguinov PO, Fisher MR, Stump WT, Greenberg M, Fitzpatrick JAJ, Epelman S, Kreisel D, Sah R, Liu Y, Hu H, Lavine KJ. Resident cardiac macrophages mediate adaptive myocardial remodeling. Immunity 2021; 54:2072-2088.e7. [PMID: 34320366 PMCID: PMC8446343 DOI: 10.1016/j.immuni.2021.07.003] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/04/2021] [Accepted: 07/07/2021] [Indexed: 12/17/2022]
Abstract
Cardiac macrophages represent a heterogeneous cell population with distinct origins, dynamics, and functions. Recent studies have revealed that C-C Chemokine Receptor 2 positive (CCR2+) macrophages derived from infiltrating monocytes regulate myocardial inflammation and heart failure pathogenesis. Comparatively little is known about the functions of tissue resident (CCR2-) macrophages. Herein, we identified an essential role for CCR2- macrophages in the chronically failing heart. Depletion of CCR2- macrophages in mice with dilated cardiomyopathy accelerated mortality and impaired ventricular remodeling and coronary angiogenesis, adaptive changes necessary to maintain cardiac output in the setting of reduced cardiac contractility. Mechanistically, CCR2- macrophages interacted with neighboring cardiomyocytes via focal adhesion complexes and were activated in response to mechanical stretch through a transient receptor potential vanilloid 4 (TRPV4)-dependent pathway that controlled growth factor expression. These findings establish a role for tissue-resident macrophages in adaptive cardiac remodeling and implicate mechanical sensing in cardiac macrophage activation.
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Affiliation(s)
- Nicole R Wong
- Departmental of Medicine, Washington University School of Medicine
| | - Jay Mohan
- Departmental of Medicine, Washington University School of Medicine
| | | | - Shuchi Guo
- Departmental of Medicine, Washington University School of Medicine
| | - Lixia Du
- Department of Anesthesiology, Washington University School of Medicine
| | - Jamison Leid
- Departmental of Medicine, Washington University School of Medicine
| | - Guoshuai Feng
- Departmental of Medicine, Washington University School of Medicine
| | - Inessa Lokshina
- Departmental of Medicine, Washington University School of Medicine
| | | | - Hannah Luehmann
- Department of Radiology, Washington University School of Medicine
| | - Geetika Bajpai
- Departmental of Medicine, Washington University School of Medicine
| | - Laura Ewald
- Departmental of Medicine, Washington University School of Medicine
| | - Lauren Bell
- Departmental of Medicine, Washington University School of Medicine
| | - Nikhil Patel
- Departmental of Genetics, Washington University School of Medicine
| | | | | | - Jessica M Nigro
- Departmental of Medicine, Washington University School of Medicine
| | - Attila Kovacs
- Departmental of Medicine, Washington University School of Medicine
| | - Sachio Morimoto
- Department of Physical Therapy, International University of Health and Welfare, Japan
| | - Peter O Bayguinov
- Department of Biochemistry, Washington University School of Medicine
| | - Max R Fisher
- Department of Biochemistry, Washington University School of Medicine
| | - W Tom Stump
- Department of Biochemistry, Washington University School of Medicine
| | - Michael Greenberg
- Department of Biochemistry, Washington University School of Medicine
| | - James A J Fitzpatrick
- Washington University Center for Cellular Imaging, Washington University School of Medicine; Departments of Neuroscience, Cell Biology & Physiology, and Biomedical Engineering, Washington University School of Medicine
| | - Slava Epelman
- Toronto General Hospital Research Institute, University Health Network
| | - Daniel Kreisel
- Department of Pathology and Immunology, Washington University School of Medicine; Department of Surgery, Washington University School of Medicine
| | - Rajan Sah
- Departmental of Medicine, Washington University School of Medicine
| | - Yongjian Liu
- Department of Radiology, Washington University School of Medicine
| | - Hongzhen Hu
- Department of Anesthesiology, Washington University School of Medicine
| | - Kory J Lavine
- Departmental of Medicine, Washington University School of Medicine; Department of Pathology and Immunology, Washington University School of Medicine; Department of Developmental Biology, Washington University School of Medicine.
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Li Z, Huang Z, Bai L. Cell Interplay in Osteoarthritis. Front Cell Dev Biol 2021; 9:720477. [PMID: 34414194 PMCID: PMC8369508 DOI: 10.3389/fcell.2021.720477] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/14/2021] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) is a common chronic disease and a significant health concern that needs to be urgently solved. OA affects the cartilage and entire joint tissues, including the subchondral bone, synovium, and infrapatellar fat pads. The physiological and pathological changes in these tissues affect the occurrence and development of OA. Understanding complex crosstalk among different joint tissues and their roles in OA initiation and progression is critical in elucidating the pathogenic mechanism of OA. In this review, we begin with an overview of the role of chondrocytes, synovial cells (synovial fibroblasts and macrophages), mast cells, osteoblasts, osteoclasts, various stem cells, and engineered cells (induced pluripotent stem cells) in OA pathogenesis. Then, we discuss the various mechanisms by which these cells communicate, including paracrine signaling, local microenvironment, co-culture, extracellular vesicles (exosomes), and cell tissue engineering. We particularly focus on the therapeutic potential and clinical applications of stem cell-derived extracellular vesicles, which serve as modulators of cell-to-cell communication, in the field of regenerative medicine, such as cartilage repair. Finally, the challenges and limitations related to exosome-based treatment for OA are discussed. This article provides a comprehensive summary of key cells that might be targets of future therapies for OA.
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Affiliation(s)
- Zihao Li
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ziyu Huang
- Foreign Languages College, Shanghai Normal University, Shanghai, China
| | - Lunhao Bai
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
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Cumulative Damage: Cell Death in Posthemorrhagic Hydrocephalus of Prematurity. Cells 2021; 10:cells10081911. [PMID: 34440681 PMCID: PMC8393895 DOI: 10.3390/cells10081911] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/23/2021] [Accepted: 07/25/2021] [Indexed: 12/19/2022] Open
Abstract
Globally, approximately 11% of all infants are born preterm, prior to 37 weeks’ gestation. In these high-risk neonates, encephalopathy of prematurity (EoP) is a major cause of both morbidity and mortality, especially for neonates who are born very preterm (<32 weeks gestation). EoP encompasses numerous types of preterm birth-related brain abnormalities and injuries, and can culminate in a diverse array of neurodevelopmental impairments. Of note, posthemorrhagic hydrocephalus of prematurity (PHHP) can be conceptualized as a severe manifestation of EoP. PHHP impacts the immature neonatal brain at a crucial timepoint during neurodevelopment, and can result in permanent, detrimental consequences to not only cerebrospinal fluid (CSF) dynamics, but also to white and gray matter development. In this review, the relevant literature related to the diverse mechanisms of cell death in the setting of PHHP will be thoroughly discussed. Loss of the epithelial cells of the choroid plexus, ependymal cells and their motile cilia, and cellular structures within the glymphatic system are of particular interest. Greater insights into the injuries, initiating targets, and downstream signaling pathways involved in excess cell death shed light on promising areas for therapeutic intervention. This will bolster current efforts to prevent, mitigate, and reverse the consequential brain remodeling that occurs as a result of hydrocephalus and other components of EoP.
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Endothelial Transient Receptor Potential V4 Channels Mediate Lung Ischemia-Reperfusion Injury. Ann Thorac Surg 2021; 113:1256-1264. [PMID: 33961815 DOI: 10.1016/j.athoracsur.2021.04.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Lung ischemia-reperfusion injury (IRI), involving severe inflammation and edema, is a major cause of primary graft dysfunction following transplant. Activation of transient receptor potential vanilloid 4 (TRPV4) channels modulates vascular permeability. Thus, this study tests the hypothesis that endothelial TRPV4 channels mediate lung IRI. METHODS C57BL/6 wild-type (WT), TRPV4-/-, tamoxifen-inducible endothelial TRPV4 knockout (TRPV4EC-/-), and tamoxifen-treated control (TRPV4fl/fl) mice underwent lung IR using a left lung hilar-ligation model (n≥6 mice/group). WT mice were also treated with a TRPV4-specific inhibitor (GSK2193874; 1mg/kg) (WT+GSK219). Partial pressure of oxygen (PaO2), edema (wet-to-dry weight ratio), compliance, neutrophil infiltration, and cytokine concentrations in bronchioalveolar lavage fluid were assessed. Pulmonary microvascular endothelial cells (PMVECs) were characterized in vitro following exposure to hypoxia-reoxygenation. RESULTS Compared to WT, PaO2 following IR was significantly improved in TRPV4-/- mice (133.1±43.9 vs 427.8±83.1 mmHg, p<0.001) and WT+GSK219 mice (133.1±43.9 vs 447.0±67.6 mmHg, p<0.001). Pulmonary edema and neutrophil infiltration were also significantly reduced after IR in TRPV4-/- and WT+GSK219 mice versus WT. TRPV4EC-/- mice following IR demonstrated significantly improved oxygenation versus control (109.2±21.6 vs 405.3±41.4 mmHg, p<0.001) as well as significantly improved compliance, and significantly less edema, neutrophil infiltration and proinflammatory cytokine production (TNF-α, CXCL1, IL-17, IFN-γ). Hypoxia-reoxygenation-induced permeability and CXCL1 expression by PMVECs was significantly attenuated by TRPV4 inhibitors. CONCLUSIONS Endothelial TRPV4 plays a key role in vascular permeability and lung inflammation following IR. TRPV4 channels may be a promising therapeutic target to mitigate lung IRI and decrease the incidence of primary graft dysfunction following transplant. (Word Count: 249/250).
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Gao M, Han J, Zhu Y, Tang C, Liu L, Xiao W, Ma X. Blocking endothelial TRPV4-Nox2 interaction helps reduce ROS production and inflammation, and improves vascular function in obese mice. J Mol Cell Cardiol 2021; 157:66-76. [PMID: 33932464 DOI: 10.1016/j.yjmcc.2021.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/02/2021] [Accepted: 04/24/2021] [Indexed: 12/16/2022]
Abstract
Obesity induces inflammation and oxidative stress, and ultimately leads to vasodilatory dysfunction in which Transient receptor potential vanilloid type 4 (TRPV4) and Nicotinamide Adenine Dinucleotide Phosphate Oxidase (Nox2) have been reported to be involved. However, little attention has been paid to the role of the TRPV4-Nox2 complex in these problems. The purpose of this study was to figure out the role of the TRPV4-Nox2 complex in obesity-induced inflammation, oxidative stress, and vasodilatory dysfunction. Using fluorescence resonance energy transfer and immunoprecipitation assays, we found enhanced TRPV4 and Nox2 interactions in obese mice. Using q-PCR, fluorescent dye dihydroethidium staining, and myotonic techniques, we found that obesity caused inflammation, oxidative stress, and vasodilatory dysfunction. Using adeno-associated viruses, we found that enhancement or attenuation of TRPV4-Nox2 interaction altered the vaso-function. Based on these findings, we found a small-molecule drug, M12, that interrupted the TRPV4-Nox2 interaction, thereby reducing inflammatory factors and reactive oxygen species production and helping to restore the vasodilatory function. In summary, our results revealed a new mechanism by which obesity-induced inflammation, oxidative stress, and vasodilatory dysfunction is caused by enhanced TRPV4-Nox2 interactions. Using M12 to interrupt the TRPV4-Nox2 interaction may have anti-inflammatory and anti-oxidative stress effects and help restore vasodilatory function and thus provide a new therapeutic approach to obesity.
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Affiliation(s)
- Mengru Gao
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi, China
| | - Jing Han
- School of Medicine, Jiangnan University, Wuxi, China
| | - Yifei Zhu
- School of Medicine, Jiangnan University, Wuxi, China
| | - Chunlei Tang
- School of Pharmaceutical Sciences, Jiangnan University, Wuxi, China
| | | | - Wang Xiao
- School of Medicine, Jiangnan University, Wuxi, China
| | - Xin Ma
- School of Medicine, Jiangnan University, Wuxi, China; School of Pharmaceutical Sciences, Jiangnan University, Wuxi, China.
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Alharbi MO, Dutta B, Goswami R, Sharma S, Lei KY, Rahaman SO. Identification and functional analysis of a biflavone as a novel inhibitor of transient receptor potential vanilloid 4-dependent atherogenic processes. Sci Rep 2021; 11:8173. [PMID: 33854174 PMCID: PMC8047007 DOI: 10.1038/s41598-021-87696-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 03/25/2021] [Indexed: 11/24/2022] Open
Abstract
Atherosclerosis, a chronic inflammatory disease of large arteries, is the major contributor to the growing burden of cardiovascular disease-related mortality and morbidity. During early atherogenesis, as a result of inflammation and endothelial dysfunction, monocytes transmigrate into the aortic intimal areas, and differentiate into lipid-laden foam cells, a critical process in atherosclerosis. Numerous natural compounds such as flavonoids and polyphenols are known to have anti-inflammatory and anti-atherogenic properties. Herein, using a fluorometric imaging plate reader-supported Ca2+ influx assay, we report semi high-throughput screening-based identification of ginkgetin, a biflavone, as a novel inhibitor of transient receptor potential vanilloid 4 (TRPV4)-dependent proatherogenic and inflammatory processes in macrophages. We found that ginkgetin (1) blocks TRPV4-elicited Ca2+ influx into macrophages, (2) inhibits oxidized low-density lipoprotein (oxLDL)-induced foam cell formation by suppressing the uptake but not the binding of oxLDL in macrophages, and (3) attenuates oxLDL-induced phosphorylation of JNK2, expression of TRPV4 proteins, and induction of inflammatory mRNAs. Considered all together, the results of this study show that ginkgetin inhibits proatherogenic/inflammatory macrophage function in a TRPV4-dependent manner, thus strengthening the rationale for the use of natural compounds for developing therapeutic and/or chemopreventive molecules.
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Affiliation(s)
- Mazen O Alharbi
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Bidisha Dutta
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Rishov Goswami
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Shweta Sharma
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Kai Y Lei
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Shaik O Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA.
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Haywood N, Ta HQ, Rotar E, Daneva Z, Sonkusare SK, Laubach VE. Role of the purinergic signaling network in lung ischemia-reperfusion injury. Curr Opin Organ Transplant 2021; 26:250-257. [PMID: 33651003 PMCID: PMC9270688 DOI: 10.1097/mot.0000000000000854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW Primary graft dysfunction (PGD) is the leading cause of early mortality following lung transplantation and is typically caused by lung ischemia-reperfusion injury (IRI). Current management of PGD is largely supportive and there are no approved therapies to prevent lung IRI after transplantation. The purinergic signaling network plays an important role in this sterile inflammatory process, and pharmacologic manipulation of said network is a promising therapeutic strategy. This review will summarize recent findings in this area. RECENT FINDINGS In the past 18 months, our understanding of lung IRI has improved, and it is becoming clear that the purinergic signaling network plays a vital role. Recent works have identified critical components of the purinergic signaling network (Pannexin-1 channels, ectonucleotidases, purinergic P1 and P2 receptors) involved in inflammation in a number of pathologic states including lung IRI. In addition, a functionally-related calcium channel, the transient receptor potential vanilloid type 4 (TRPV4) channel, has recently been linked to purinergic signaling and has also been shown to mediate lung IRI. SUMMARY Agents targeting components of the purinergic signaling network are promising potential therapeutics to limit inflammation associated with lung IRI and thus decrease the risk of developing PGD.
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Affiliation(s)
- Nathan Haywood
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA
| | - Huy Q. Ta
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA
| | - Evan Rotar
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA
| | - Zdravka Daneva
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA
| | - Swapnil K. Sonkusare
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, VA
- Department of Molecular Physiology and Biological Physics, University of Virginia School of Medicine, Charlottesville, VA
| | - Victor E. Laubach
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA
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Arya RK, Goswami R, Rahaman SO. Mechanotransduction via a TRPV4-Rac1 signaling axis plays a role in multinucleated giant cell formation. J Biol Chem 2021; 296:100129. [PMID: 33262217 PMCID: PMC7948992 DOI: 10.1074/jbc.ra120.014597] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/13/2020] [Accepted: 12/01/2020] [Indexed: 12/21/2022] Open
Abstract
Multinucleated giant cells are formed by the fusion of macrophages and are a characteristic feature in numerous pathophysiological conditions including the foreign body response (FBR). Foreign body giant cells (FBGCs) are inflammatory and destructive multinucleated macrophages and may cause damage and/or rejection of implants. However, while these features of FBGCs are well established, the molecular mechanisms underlying their formation remain elusive. Improved understanding of the molecular mechanisms underlying the formation of FBGCs may permit the development of novel implants that eliminate or reduce the FBR. Our previous study showed that transient receptor potential vanilloid 4 (TRPV4), a mechanosensitive ion channel/receptor, is required for FBGC formation and FBR to biomaterials. Here, we have determined that (a) TRPV4 is directly involved in fusogenic cytokine (interleukin-4 plus granulocyte macrophage-colony stimulating factor)-induced activation of Rac1, in bone marrow-derived macrophages; (b) TRPV4 directly interacts with Rac1, and their interaction is further augmented in the presence of fusogenic cytokines; (c) TRPV4-dependent activation of Rac1 is essential for the augmentation of intracellular stiffness and regulation of cytoskeletal remodeling; and (d) TRPV4-Rac1 signaling axis is critical in fusogenic cytokine-induced FBGC formation. Together, these data suggest a novel mechanism whereby a functional interaction between TRPV4 and Rac1 leads to cytoskeletal remodeling and intracellular stiffness generation to modulate FBGC formation.
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Affiliation(s)
- Rakesh K Arya
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland, USA
| | - Rishov Goswami
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland, USA
| | - Shaik O Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland, USA.
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Dutta B, Goswami R, Rahaman SO. TRPV4 Plays a Role in Matrix Stiffness-Induced Macrophage Polarization. Front Immunol 2020; 11:570195. [PMID: 33381111 PMCID: PMC7767862 DOI: 10.3389/fimmu.2020.570195] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 11/04/2020] [Indexed: 12/16/2022] Open
Abstract
Phenotypic polarization of macrophages is deemed essential in innate immunity and various pathophysiological conditions. We have now determined key aspects of the molecular mechanism by which mechanical cues regulate macrophage polarization. We show that Transient Receptor Potential Vanilloid 4 (TRPV4), a mechanosensitive ion channel, mediates substrate stiffness-induced macrophage polarization. Using atomic force microscopy, we showed that genetic ablation of TRPV4 function abrogated fibrosis-induced matrix stiffness generation in skin tissues. We have determined that stiffer skin tissue promotes the M1 macrophage subtype in a TRPV4-dependent manner; soft tissue does not. These findings were further validated by our in vitro results which showed that stiff matrix (50 kPa) alone increased expression of macrophage M1 markers in a TRPV4-dependent manner, and this response was further augmented by the addition of soluble factors; neither of which occurred with soft matrix (1 kPa). A direct requirement for TRPV4 in M1 macrophage polarization spectrum in response to increased stiffness was evident from results of gain-of-function assays, where reintroduction of TRPV4 significantly upregulated the expression of M1 markers in TRPV4 KO macrophages. Together, these data provide new insights regarding the role of TRPV4 in matrix stiffness-induced macrophage polarization spectrum that may be explored in tissue engineering and regenerative medicine and targeted therapeutics.
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Affiliation(s)
- Bidisha Dutta
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, United States
| | - Rishov Goswami
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, United States
| | - Shaik O Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, United States
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Qiu L, Du L, Liang Q, Hu H, Tu Z. Synthesis and in vitro evaluation of new TRPV4 ligands and biodistribution study of an 11C-labeled radiotracer in rodents. Bioorg Med Chem Lett 2020; 30:127573. [PMID: 32980513 DOI: 10.1016/j.bmcl.2020.127573] [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: 06/11/2020] [Revised: 09/13/2020] [Accepted: 09/18/2020] [Indexed: 11/15/2022]
Abstract
Nine new compounds targeting the transient receptor potential vanilloid-4 (TRPV4) were synthesized and their biological activities toward TRPV4 were determined using freshly isolated mouse skin macrophages through live cell Ca2+ imaging assay. Three compounds 4b, 4c, and 4i exhibited higher percentages of in vitro activation of TRPV4 as 48.1%, 59.3% and 33.5%, which are comparable to 56.4% activation response of the reported TRPV4 agonist GSK1016790A (3). The compound 4i was chosen for 11C-radiosynthesis using its phenol precursor 4g to reacted with [11C]methyl iodide. The radiosynthesis was achieved with good radiochemical yield (16 ± 5%), high chemical and radiochemical purity (>95%), and high molar activity (16-21 GBq/μmol, decay corrected to the end of bombardment, EOB n ≥ 4). Furthermore, the initial ex vivo biodistribution study in rats showed that [11C]4i had higher uptake in kidney, liver and small intestine compared to other tissues with rapid washout.
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Affiliation(s)
- Lin Qiu
- Department of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, St. Louis, MO 63110, United States
| | - Lixia Du
- Department of Anesthesiology, Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, MO 63110, United States
| | - Qianwa Liang
- Department of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, St. Louis, MO 63110, United States
| | - Hongzhen Hu
- Department of Anesthesiology, Center for the Study of Itch and Sensory Disorders, Washington University School of Medicine, St. Louis, MO 63110, United States.
| | - Zhude Tu
- Department of Radiology, Washington University School of Medicine, 510 South Kingshighway Boulevard, St. Louis, MO 63110, United States.
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48
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Summers KM, Bush SJ, Hume DA. Network analysis of transcriptomic diversity amongst resident tissue macrophages and dendritic cells in the mouse mononuclear phagocyte system. PLoS Biol 2020; 18:e3000859. [PMID: 33031383 PMCID: PMC7575120 DOI: 10.1371/journal.pbio.3000859] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 10/20/2020] [Accepted: 09/08/2020] [Indexed: 02/07/2023] Open
Abstract
The mononuclear phagocyte system (MPS) is a family of cells including progenitors, circulating blood monocytes, resident tissue macrophages, and dendritic cells (DCs) present in every tissue in the body. To test the relationships between markers and transcriptomic diversity in the MPS, we collected from National Center for Biotechnology Information Gene Expression Omnibus (NCBI-GEO) a total of 466 quality RNA sequencing (RNA-seq) data sets generated from mouse MPS cells isolated from bone marrow, blood, and multiple tissues. The primary data were randomly downsized to a depth of 10 million reads and requantified. The resulting data set was clustered using the network analysis tool BioLayout. A sample-to-sample matrix revealed that MPS populations could be separated based upon tissue of origin. Cells identified as classical DC subsets, cDC1s and cDC2s, and lacking Fcgr1 (encoding the protein CD64) were contained within the MPS cluster, no more distinct than other MPS cells. A gene-to-gene correlation matrix identified large generic coexpression clusters associated with MPS maturation and innate immune function. Smaller coexpression gene clusters, including the transcription factors that drive them, showed higher expression within defined isolated cells, including monocytes, macrophages, and DCs isolated from specific tissues. They include a cluster containing Lyve1 that implies a function in endothelial cell (EC) homeostasis, a cluster of transcripts enriched in intestinal macrophages, and a generic lymphoid tissue cDC cluster associated with Ccr7. However, transcripts encoding Adgre1, Itgax, Itgam, Clec9a, Cd163, Mertk, Mrc1, Retnla, and H2-a/e (encoding class II major histocompatibility complex [MHC] proteins) and many other proposed macrophage subset and DC lineage markers each had idiosyncratic expression profiles. Coexpression of immediate early genes (for example, Egr1, Fos, Dusp1) and inflammatory cytokines and chemokines (tumour necrosis factor [Tnf], Il1b, Ccl3/4) indicated that all tissue disaggregation and separation protocols activate MPS cells. Tissue-specific expression clusters indicated that all cell isolation procedures also co-purify other unrelated cell types that may interact with MPS cells in vivo. Comparative analysis of RNA-seq and single-cell RNA-seq (scRNA-seq) data from the same lung cell populations indicated that MPS heterogeneity implied by global cluster analysis may be even greater at a single-cell level. This analysis highlights the power of large data sets to identify the diversity of MPS cellular phenotypes and the limited predictive value of surface markers to define lineages, functions, or subpopulations.
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Affiliation(s)
- Kim M. Summers
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Stephen J. Bush
- Nuffield Department of Clinical Medicine, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
| | - David A. Hume
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
- * E-mail:
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Kuebler WM, Jordt SE, Liedtke WB. Urgent reconsideration of lung edema as a preventable outcome in COVID-19: inhibition of TRPV4 represents a promising and feasible approach. Am J Physiol Lung Cell Mol Physiol 2020; 318:L1239-L1243. [PMID: 32401673 PMCID: PMC7276984 DOI: 10.1152/ajplung.00161.2020] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Lethality of coronavirus disease (COVID-19) during the 2020 pandemic, currently still in the exponentially accelerating phase in most countries, is critically driven by disruption of the alveolo-capillary barrier of the lung, leading to lung edema as a direct consequence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. We argue for inhibition of the transient receptor potential vanilloid 4 (TRPV4) calcium-permeable ion channel as a strategy to address this issue, based on the rationale that TRPV4 inhibition is protective in various preclinical models of lung edema and that TRPV4 hyperactivation potently damages the alveolo-capillary barrier, with lethal outcome. We believe that TRPV4 inhibition has a powerful prospect at protecting this vital barrier in COVID-19 patients, even to rescue a damaged barrier. A clinical trial using a selective TRPV4 inhibitor demonstrated a benign safety profile in healthy volunteers and in patients suffering from cardiogenic lung edema. We argue for expeditious clinical testing of this inhibitor in COVID-19 patients with respiratory malfunction and at risk for lung edema. Perplexingly, among the currently pursued therapeutic strategies against COVID-19, none is designed to directly protect the alveolo-capillary barrier. Successful protection of the alveolo-capillary barrier will not only reduce COVID-19 lethality but will also preempt a distressing healthcare scenario with insufficient capacity to provide ventilator-assisted respiration.
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Affiliation(s)
- Wolfgang M. Kuebler
- 1Institute of Physiology, Charité Medical University of Berlin, Berlin, Germany
| | - Sven-Eric Jordt
- 2Department of Anesthesiology, Duke University, Durham, North Carolina
| | - Wolfgang B. Liedtke
- 2Department of Anesthesiology, Duke University, Durham, North Carolina,3Department of Neurology, Duke University, Durham, North Carolina,4Department of Neurobiology, Duke University, Durham, North Carolina
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50
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Luo XQ, Duan JX, Yang HH, Zhang CY, Sun CC, Guan XX, Xiong JB, Zu C, Tao JH, Zhou Y, Guan CX. Epoxyeicosatrienoic acids inhibit the activation of NLRP3 inflammasome in murine macrophages. J Cell Physiol 2020; 235:9910-9921. [PMID: 32452554 DOI: 10.1002/jcp.29806] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 05/09/2020] [Indexed: 12/17/2022]
Abstract
Epoxyeicosatrienoic acids (EETs) derived from arachidonic acid exert anti-inflammation effects. We have reported that blocking the degradation of EETs with a soluble epoxide hydrolase (sEH) inhibitor protects mice from lipopolysaccharide (LPS)-induced acute lung injury (ALI). The underlying mechanisms remain essential questions. In this study, we investigated the effects of EETs on the activation of nucleotide-binding domain leucine-rich repeat-containing receptor, pyrin domain-containing-3 (NLRP3) inflammasome in murine macrophages. In an LPS-induced ALI murine model, we found that sEH inhibitor 1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl), TPPU, profoundly attenuated the pathological injury and inhibited the activation of the NLRP3 inflammasome, characterized by the reduction of the protein expression of NLRP3, ASC, pro-caspase-1, interleukin precursor (pro-IL-1β), and IL-1β p17 in the lungs of LPS-treated mice. In vitro, primary peritoneal macrophages from C57BL/6 were primed with LPS and activated with exogenous adenosine triphosphate (ATP). TPPU treatment remarkably reduced the expression of NLRP3 inflammasome-related molecules and blocked the activation of NLRP3 inflammasome. Importantly, four EETs (5,6-EET, 8,9-EET, 11,12-EET, and 14,15-EET) inhibited the activation of NLRP3 inflammasome induced by LPS + ATP or LPS + nigericin in macrophages in various degree. While the inhibitory effect of 5,6-EET was the weakest. Mechanismly, EETs profoundly decreased the content of reactive oxygen species (ROS) and restored the calcium overload in macrophages receiving LPS + ATP stimulation. In conclusion, this study suggests that EETs inhibit the activation of the NLRP3 inflammasome by suppressing calcium overload and ROS production in macrophages, contributing to the therapeutic potency to ALI.
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Affiliation(s)
- Xiao-Qin Luo
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Department of Basic Medicine, Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China.,Department of Medical Technology, Changsha Health Vocational College, Changsha, Hunan, China
| | - Jia-Xi Duan
- Department of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China.,Research Unit of Respiratory Disease, Central South University, Changsha, Hunan, China
| | - Hui-Hui Yang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Chen-Yu Zhang
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Chen-Chen Sun
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xin-Xin Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jian-Bing Xiong
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Cheng Zu
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jia-Hao Tao
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yong Zhou
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Cha-Xiang Guan
- Department of Physiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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