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Angsusing J, Singh S, Samee W, Tadtong S, Stokes L, O’Connell M, Bielecka H, Toolmal N, Mangmool S, Chittasupho C. Anti-Inflammatory Activities of Yataprasen Thai Traditional Formulary and Its Active Compounds, Beta-Amyrin and Stigmasterol, in RAW264.7 and THP-1 Cells. Pharmaceuticals (Basel) 2024; 17:1018. [PMID: 39204123 PMCID: PMC11357128 DOI: 10.3390/ph17081018] [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: 06/20/2024] [Revised: 07/15/2024] [Accepted: 07/29/2024] [Indexed: 09/03/2024] Open
Abstract
Yataprasen (YTPS) remedy formulary, a national Thai traditional medicine formulary, comprises 13 herbal plants. It has been extensively prescribed to relieve osteoarthritis and musculoskeletal pain in the Thai traditional medicine healthcare system. The aim of this study was to investigate the antioxidant and anti-inflammatory properties of the bioactive compounds (β-amyrin and stigmasterol) of YTPS remedy formulary ethanolic extract, along with its composition. The YTPS formulary extract contains 70.30 nM of β-amyrin and 605.76 nM of stigmasterol. The YTPS formulary extract exhibited ABTS and DPPH free radical scavenging activity, with IC50 values of 144.50 ± 2.82 and 31.85 ± 0.18 µg/mL, respectively. The ethanolic extract of YTPS at a concentration of 1000 µg/mL showed a significant (p < 0.01) anti-inflammatory effect, mainly by reducing IL-6 and TNF-α release in response to LPS. NO production was prominently lowered by 50% at 24.76 ± 1.48 µg/mL, 55.52 ± 24.40 µM, and more than 570 µM of YTPS formulary extract, β-amyrin, and stigmasterol, respectively. Major components of YTPS, β-amyrin, and stigmasterol exerted significant anti-inflammatory effects by inhibiting LPS-induced IL-1β, IL-6, TNF-α secretion in THP-1 cells. Our findings suggest that the ethanolic extract from YTPS holds promise as an alternative topical treatment for osteoarthritis and inflammatory disorders, potentially with fewer side effects than non-steroidal anti-inflammatory medications (NSAIDs).
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Affiliation(s)
- Jaenjira Angsusing
- Ph.D. Degree Program in Pharmacy, Faculty of Pharmacy, Chiang Mai University, CMU Presidential Scholarship, Chiang Mai 50200, Thailand;
- Thai Traditional Medicine Research Institute, Department of Thai Traditional and Alternative Medicine, Ministry of Public Health, Bangkok 10100, Thailand;
| | - Sudarshan Singh
- Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
- Office of Research Administration, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Weerasak Samee
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Srinakharinwirot University, Nakhon Nayok 26120, Thailand;
| | - Sarin Tadtong
- Department of Pharmacognosy, Faculty of Pharmacy, Srinakharinwirot University, Nakhon Nayok 26120, Thailand;
| | - Leanne Stokes
- School of Pharmacy, University of East Anglia, Norwich, Norwich Research Park, Norfolk NR4 7TJ, UK; (L.S.); (M.O.); (H.B.)
| | - Maria O’Connell
- School of Pharmacy, University of East Anglia, Norwich, Norwich Research Park, Norfolk NR4 7TJ, UK; (L.S.); (M.O.); (H.B.)
| | - Hanna Bielecka
- School of Pharmacy, University of East Anglia, Norwich, Norwich Research Park, Norfolk NR4 7TJ, UK; (L.S.); (M.O.); (H.B.)
| | - Nopparut Toolmal
- Thai Traditional Medicine Research Institute, Department of Thai Traditional and Alternative Medicine, Ministry of Public Health, Bangkok 10100, Thailand;
| | - Supachoke Mangmool
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Chuda Chittasupho
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
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2
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Kawakami S, Johmura Y, Nakanishi M. Intracellular acidification and glycolysis modulate inflammatory pathway in senescent cells. J Biochem 2024; 176:97-108. [PMID: 38564227 PMCID: PMC11289320 DOI: 10.1093/jb/mvae032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/04/2024] Open
Abstract
Senescent cells accumulate in various organs with ageing, and its accumulation induces chronic inflammation and age-related physiological dysfunctions. Several remodelling of intracellular environments have been identified in senescent cells, including enlargement of cell/nuclear size and intracellular acidification. Although these alterations of intracellular environments were reported to be involved in the unique characteristics of senescent cells, the contribution of intracellular acidification to senescence-associated cellular phenotypes is poorly understood. Here, we identified that the upregulation of TXNIP and its paralog ARRDC4 as a hallmark of intracellular acidification in addition to KGA-type GLS1. These genes were also upregulated in response to senescence-associated intracellular acidification. Neutralization of the intracellular acidic environment ameliorated not only senescence-related upregulation of TXNIP, ARRDC4 and KGA but also inflammation-related genes, possibly through suppression of PDK-dependent anaerobic glycolysis. Furthermore, we found that expression of the intracellular acidification-induced genes, TXNIP and ARRDC4, correlated with inflammatory gene expression in heterogeneous senescent cell population in vitro and even in vivo, implying that the contribution of intracellular pH to senescence-associated cellular features, such as SASP.
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Affiliation(s)
- Satoshi Kawakami
- Division of Cancer Cell Biology, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
- Department of Biological Sciences, School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yoshikazu Johmura
- Division of Cancer and Senescence Biology, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192 Japan
| | - Makoto Nakanishi
- Division of Cancer Cell Biology, The Institute of Medical Science, The University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo 108-8639, Japan
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3
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Messina JM, Luo M, Hossan MS, Gadelrab HA, Yang X, John A, Wilmore JR, Luo J. Unveiling cytokine charge disparity as a potential mechanism for immune regulation. Cytokine Growth Factor Rev 2024; 77:1-14. [PMID: 38184374 DOI: 10.1016/j.cytogfr.2023.12.002] [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: 11/20/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/08/2024]
Abstract
Cytokines are small signaling proteins that regulate the immune responses to infection and tissue damage. Surface charges of cytokines determine their in vivo fate in immune regulation, e.g., half-life and distribution. The overall negative charges in the extracellular microenvironment and the acidosis during inflammation and infection may differentially impact cytokines with different surface charges for fine-tuned immune regulation via controlling tissue residential properties. However, the trend and role of cytokine surface charges has yet to be elucidated in the literature. Interestingly, we have observed that most pro-inflammatory cytokines have a negative charge, while most anti-inflammatory cytokines and chemokines have a positive charge. In this review, we extensively examined the surface charges of all cytokines and chemokines, summarized the pharmacokinetics and tissue adhesion of major cytokines, and analyzed the link of surface charge with cytokine biodistribution, activation, and function in immune regulation. Additionally, we identified that the general trend of charge disparity between pro- and anti-inflammatory cytokines represents a unique opportunity to develop precise immune modulation approaches, which can be applied to many inflammation-associated diseases including solid tumors, chronic wounds, infection, and sepsis.
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Affiliation(s)
- Jennifer M Messina
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Minghao Luo
- Department of Clinical Medicine, 2nd Affiliated Hospital, Harbin Medical University, Harbin, Heilongjiang 150081, China
| | - Md Shanewaz Hossan
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Hadil A Gadelrab
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Xiguang Yang
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Anna John
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Joel R Wilmore
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States; Upstate Sepsis Interdisciplinary Research Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States
| | - Juntao Luo
- Department of Pharmacology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States; Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY 13210, United States; Department of Surgery, State University of New York Upstate Medical University, Syracuse, NY 13210, United States; Upstate Cancer Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States; Upstate Sepsis Interdisciplinary Research Center, State University of New York Upstate Medical University, Syracuse, NY 13210, United States.
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4
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Pawelec KM, Hix JML, Troia A, MacRenaris KW, Kiupel M, Shapiro EM. In vivo micro-computed tomography evaluation of radiopaque, polymeric device degradation in normal and inflammatory environments. Acta Biomater 2024; 181:222-234. [PMID: 38648912 PMCID: PMC11144086 DOI: 10.1016/j.actbio.2024.04.031] [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: 02/01/2024] [Revised: 03/26/2024] [Accepted: 04/18/2024] [Indexed: 04/25/2024]
Abstract
Polymeric biomedical implants are an important clinical tool, but degradation remains difficult to determine post-implantation. Computed tomography (CT) could be a powerful tool for device monitoring, but polymers require incorporation of radiopaque contrast agents to be distinguishable from tissue. In addition, immune response to radiopaque devices must be characterized as it modulates device function. Radiopaque devices and films were produced by incorporating 0-20 wt% TaOx nanoparticles into polymers: polycaprolactone (PCL) and poly(lactide-co-glycolide) (PLGA). In vitro inflammatory responses of mouse bone marrow-derived macrophages to polymer matrix incorporating TaOx nanoparticles was determined by monitoring cytokine secretion. Nanoparticle addition stimulated a slight inflammatory reaction, increasing TNFα secretion, mediated by changes in polymer matrix properties. Subsequently, devices (PLGA 50:50 + 20 wt% TaOx) were implanted subcutaneously in a mouse model of chronic inflammation, that featured a sustained increase in inflammatory response local to the implant site over 12 weeks. No changes to device degradation rates or foreign body response were noted between a normal and chronically stimulated inflammatory environment. Serial CT device monitoring post-implantation provided a detailed timeline of device collapse, with no rapid, spontaneous release of nanoparticles that occluded matrix visualization. Importantly, repeat CT sessions did not ablate the immune system or alter degradation kinetics. Thus, polymer devices incorporating radiopaque nanoparticles can be used for in situ monitoring and be readily combined with other medical imaging techniques, for a dynamic view biomaterial and tissue interactions. STATEMENT OF SIGNIFICANCE: A growing number of implantable devices are in use in the clinic, exposing patients to inherent risks of implant movement, collapse, and infection. The ability to monitor implanted devices would enable faster diagnosis of failure and open the door for personalized rehabilitation therapies - both of which could vastly improve patient outcomes. Unfortunately, polymeric materials which make up most biomedical devices are not radiologically distinguishable from tissue post-implantation. The introduction of radiopaque nanoparticles into polymers allows for serial monitoring via computed tomography, without affecting device degradation. Here we demonstrate for the first time that nanoparticles do not undergo burst release from devices post-implantation and that inflammatory responses - a key determinant of device function in vivo - are also unaffected by nanoparticle addition.
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Affiliation(s)
- Kendell M Pawelec
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA; Institute for Quantitative Health Sciences and Engineering, Michigan State University, East Lansing, MI 48824, USA.
| | - Jeremy M L Hix
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA; Institute for Quantitative Health Sciences and Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Arianna Troia
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA
| | - Keith W MacRenaris
- Quantitative Bio Element Analysis and Mapping (QBEAM) Center, Michigan State University, East Lansing, MI 48824, USA
| | - Matti Kiupel
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI 48824, USA
| | - Erik M Shapiro
- Department of Radiology, Michigan State University, East Lansing, MI 48824, USA; Institute for Quantitative Health Sciences and Engineering, Michigan State University, East Lansing, MI 48824, USA; Department of Physiology, Michigan State University, East Lansing, MI 48824, USA; Department of Chemical Engineering and Material Science, Michigan State University, East Lansing, MI 48824, USA; Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA.
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5
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Huang K, Wang Q, Qu H, Hu X, Niu W, Hultgårdh-Nilsson A, Nilsson J, Liang C, Chen Y. Effect of acidosis on adipose-derived stem cell impairment and gene expression. Regen Ther 2024; 25:331-343. [PMID: 38333090 PMCID: PMC10850859 DOI: 10.1016/j.reth.2024.01.010] [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: 12/04/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 02/10/2024] Open
Abstract
Based on disappointing results of stem cell-based application in clinical trials for patients with critical limb ischemia, we hypothesized that the acidic environment might be the key factor limiting cell survival and function. In the present study, we used microdialysis to determine presence of acidosis and metabolic imbalance in critical ischemia. Moreover, we explored the effect of extracellular acidosis on adipose-derived stem cells (ADSCs) at molecular and transcriptional level. Our data demonstrate that low pH negatively regulates cell proliferation and survival, also, it results in cell cycle arrest, mitochondrial dynamics disorder, DNA damage as well as the impairment of proangiogenic function in a pH-dependent manner. Further transcriptome profiling identified the pivotal signaling pathways and hub genes in response to acidosis. Collectively, these findings provide strong evidences for a critical role of acidosis in ADSCs impairment with ischemic condition and suggest treatments focus on tissue pH balance and acidosis-mediated hub genes may have therapeutic potential in stem cell-based application.
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Affiliation(s)
- Kun Huang
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, 200003 Shanghai, China
| | - Qinqin Wang
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, 200003 Shanghai, China
| | - Huilong Qu
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, 200003 Shanghai, China
| | - Xinyu Hu
- Institute for Molecules and Materials, Radboud University, Nijmegen 6525 AJ, Netherlands
| | - Wenhao Niu
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, 200003 Shanghai, China
| | | | - Jan Nilsson
- Department of Clinical Sciences Malmö, Lund University, 20502 Malmö, Sweden
| | - Chun Liang
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, 200003 Shanghai, China
| | - Yihong Chen
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, 200003 Shanghai, China
- Department of Experimental Medical Science, Lund University, 22184 Lund, Sweden
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6
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Yuan Z, Miao L, Zhang S, Li H, Li G, Zhang G. The role of acid-sensing ion channels in monosodium urate-induced gouty pain in mice. Pflugers Arch 2024; 476:101-110. [PMID: 37770586 DOI: 10.1007/s00424-023-02862-4] [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: 12/21/2022] [Revised: 06/25/2023] [Accepted: 09/19/2023] [Indexed: 09/30/2023]
Abstract
Acid-sensing ion channels (ASICs) in dorsal root ganglion (DRG) neurons play an important role in inflammatory pain. The objective of this study is to observe the regulatory role of ASICs in monosodium urate (MSU) crystal-induced gout pain and explore the basis for ASICs in DRG neurons as a target for gout pain treatment. The gout arthritis model was induced by injecting MSU crystals into the ankle joint of mice. The circumference of the ankle joint was used to evaluate the degree of swelling; the von Frey filaments were used to determine the withdrawal threshold of the paw. ASIC currents and action potentials (APs) were recorded by patch clamp technique in DRG neurons. The results displayed that injecting MSU crystals caused ankle edema and mechanical hyperalgesia of the paw, which was relieved after amiloride treatment. The ASIC currents in DRG neurons were increased to a peak on the second day after injecting MSU crystals, which were decreased after amiloride treatment. MSU treatment increased the current density of ASICs in different diameter DRG cells. MSU treatment does not change the characteristics of AP. The results suggest that ASICs in DRG neurons participate in MSU crystal-induced gout pain.
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Affiliation(s)
- Ziqi Yuan
- Department of Clinical Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China
| | - Lurong Miao
- Department of Clinical Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China
| | - Shijia Zhang
- School of Pharmacy, Xuzhou Medical University, Xuzhou, 221100, China
| | - Hanhan Li
- Department of Clinical Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China
| | - Guang Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education, Institute of Cardiovascular Research of Southwest Medical University, Luzhou, 6463000, China
| | - Guangqin Zhang
- Department of Clinical Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China.
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7
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Garland NT, Kaveti R, Bandodkar AJ. Biofluid-Activated Biofuel Cells, Batteries, and Supercapacitors: A Comprehensive Review. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303197. [PMID: 37358398 DOI: 10.1002/adma.202303197] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/06/2023] [Indexed: 06/27/2023]
Abstract
Recent developments in wearable and implanted devices have resulted in numerous, unprecedented capabilities that generate increasingly detailed information about a user's health or provide targeted therapy. However, options for powering such systems remain limited to conventional batteries which are large and have toxic components and as such are not suitable for close integration with the human body. This work provides an in-depth overview of biofluid-activated electrochemical energy devices, an emerging class of energy sources judiciously designed for biomedical applications. These unconventional energy devices are composed of biocompatible materials that harness the inherent chemistries of various biofluids to produce useable electrical energy. This work covers examples of such biofluid-activated energy devices in the form of biofuel cells, batteries, and supercapacitors. Advances in materials, design engineering, and biotechnology that form the basis for high-performance, biofluid-activated energy devices are discussed. Innovations in hybrid manufacturing and heterogeneous integration of device components to maximize power output are also included. Finally, key challenges and future scopes of this nascent field are provided.
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Affiliation(s)
- Nate T Garland
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 27606, USA
- Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST), North Carolina State University, Raleigh, NC, 27606, USA
| | - Rajaram Kaveti
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 27606, USA
- Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST), North Carolina State University, Raleigh, NC, 27606, USA
| | - Amay J Bandodkar
- Department of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC, 27606, USA
- Center for Advanced Self-Powered Systems of Integrated Sensors and Technologies (ASSIST), North Carolina State University, Raleigh, NC, 27606, USA
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8
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Riemann A, Rauschner M, Reime S, Thews O. The Role of microRNAs in Gene Expression and Signaling Response of Tumor Cells to an Acidic Environment. Int J Mol Sci 2023; 24:16919. [PMID: 38069241 PMCID: PMC10707721 DOI: 10.3390/ijms242316919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/18/2023] Open
Abstract
Many tumors are characterized by marked extracellular acidosis due to increased glycolytic metabolism, which affects gene expression and thereby tumor biological behavior. At the same time, acidosis leads to altered expression of several microRNAs (Mir7, Mir183, Mir203, Mir215). The aim of this study was to analyze whether the acidosis-induced changes in cytokines and tumor-related genes are mediated via pH-sensitive microRNAs. Therefore, the expression of Il6, Nos2, Ccl2, Spp1, Tnf, Acat2, Aox1, Crem, Gls2, Per3, Pink1, Txnip, and Ypel3 was examined in acidosis upon simultaneous transfection with microRNA mimics or antagomirs in two tumor lines in vitro and in vivo. In addition, it was investigated whether microRNA expression in acidosis is affected via known pH-sensitive signaling pathways (MAPK, PKC, PI3K), via ROS, or via altered intracellular Ca2+ concentration. pH-dependent microRNAs were shown to play only a minor role in modulating gene expression. Individual genes (e.g., Ccl2, Txnip, Ypel3) appear to be affected by Mir183, Mir203, or Mir215 in acidosis, but these effects are cell line-specific. When examining whether acid-dependent signaling affects microRNA expression, it was found that Mir203 was modulated by MAPK and ROS, Mir7 was affected by PKC, and Mir215 was dependent on the intracellular Ca2+ concentration. Mir183 could be increased by ROS scavenging. These correlations could possibly result in new therapeutic approaches for acidotic tumors.
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Affiliation(s)
| | | | | | - Oliver Thews
- Julius Bernstein Institute of Physiology, University of Halle-Wittenberg, 06108 Halle, Germany
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9
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Tran NP, Tran P, Yoo SY, Tangchang W, Lee S, Lee JY, Son HY, Park JS. Sialic acid-decorated liposomes enhance the anti-cancer efficacy of docetaxel in tumor-associated macrophages. BIOMATERIALS ADVANCES 2023; 154:213606. [PMID: 37678087 DOI: 10.1016/j.bioadv.2023.213606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023]
Abstract
Tumor-associated macrophages (TAMs) in the tumor microenvironment potentially enhance tumor growth and invasion through various mechanisms and are thus an essential factor in tumor immunity. The highly expressed siglec-1 receptors on the surfaces of TAMs are potential targets for cancer drug delivery systems. Sialic acid (SA) is a specific ligand for siglec-1. In this study, the sialic acid-polyethylene glycol conjugate (DSPE-PEG2000-SA) was synthesized to modify the surface of liposomes and target TAMs by interacting with the siglec-1 receptor. Three docetaxel (DTX)-loaded liposomes, conventional (DTX-CL), DSPE-PEG2000-coated (DTX-PL), and DSPE-PEG2000-SA-coated (DTX-SAPL) liposomes, were prepared, with a particle size of <100 nm, uniform polydispersity index (PDI) values, negative zeta potential, and % encapsulation efficiency (EE) exceeding 95 %. Liposomes showed high stability after 3 months of storage at 4 °C without significant changes in particle size, PDI, zeta potential, or % EE. DTX was released from liposomes according to the Weibull model, and DTX-SAPL exhibited more rapid drug release than other liposomes. In vitro studies demonstrated that DTX-SAPL liposome exhibited a higher uptake and cytotoxicity on RAW 264.7 cells (TAM model) and lower toxicity on NIH3T3 cells (normal cell model) than other formulations. The high cell uptake ability was demonstrated by the role of the SA-SA receptor. Biodistribution studies indicated a high tumor accumulation of surface-modified liposomal formulations, particularly SA-modified liposomes, showing high signal accumulation at the tumor periphery, where TAMs were highly concentrated. Ex vivo imaging showed a significantly higher accumulation of SA-modified liposomes in the tumor, kidney, and heart than conventional liposomes. In the anti-cancer efficacy study, DTX-SAPL liposomes showed effective inhibition of tumor growth and relatively low systemic toxicity, as evidenced by the tumor volume, tumor weight, body weight values, and histopathological analysis. Therefore, DSPE-PEG2000-SA-coated liposomes could be promising carriers for DTX delivery targeting TAMs in cancer therapy.
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Affiliation(s)
- Nhan Phan Tran
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Phuong Tran
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - So-Yeol Yoo
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Warisraporn Tangchang
- College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Seokwoo Lee
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Jae-Young Lee
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Hwa-Young Son
- College of Veterinary Medicine, Chungnam National University, 99 Daehak-ro Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Jeong-Sook Park
- College of Pharmacy, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
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10
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Pawelec KM, Hix JML, Troia A, Kiupel M, Shapiro E. In vivo Biomedical Imaging of Immune Tolerant, Radiopaque Nanoparticle-Embedded Polymeric Device Degradation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.26.564238. [PMID: 37961412 PMCID: PMC10634892 DOI: 10.1101/2023.10.26.564238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Biomedical implants remain an important clinical tool for restoring patient mobility and quality of life after trauma. While polymers are often used for devices, their degradation profile remains difficult to determine post-implantation. CT monitoring could be a powerful tool for in situ monitoring of devices, but polymers require the introduction of radiopaque contrast agents, like nanoparticles, to be distinguishable from native tissue. As device function is mediated by the immune system, use of radiopaque nanoparticles for serial monitoring therefore requires a minimal impact on inflammatory response. Radiopaque polymer composites were produced by incorporating 0-20wt% TaOx nanoparticles into synthetic polymers: polycaprolactone (PCL) and poly(lactide-co-glycolide) (PLGA). In vitro inflammatory response to TaOx was determined by monitoring mouse bone marrow derived macrophages on composite films. Nanoparticle addition stimulated only a slight inflammatory reaction, namely increased TNFα secretion, mediated by changes to the polymer matrix properties. When devices (PLGA 50:50 + 20wt% TaOx) were implanted subcutaneously in a mouse model of chronic inflammation, no changes to device degradation were noted although macrophage number was increased over 12 weeks. Serial CT monitoring of devices post-implantation provided a detailed timeline of device structural collapse, with no burst release of the nanoparticles from the implant. Changes to the device were not significantly altered with monitoring, nor was the immune system ablated when checked via blood cell count and histology. Thus, polymer devices incorporating radiopaque TaOx NPs can be used for in situ CT monitoring, and can be readily combined with multiple medical imaging techniques, for a truly dynamic view biomaterials interaction with tissues throughout regeneration, paving the way for a more structured approach to biomedical device design.
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Affiliation(s)
- Kendell M Pawelec
- Department of Radiology, Michigan State University, East Lansing, MI 48823, USA
| | - Jeremy M L Hix
- Department of Radiology, Michigan State University, East Lansing, MI 48823, USA
- Institute for Quantitative Health Sciences and Engineering, Michigan State University, East Lansing, MI 48823, USA
| | - Arianna Troia
- Department of Radiology, Michigan State University, East Lansing, MI 48823, USA
| | - Matti Kiupel
- Department of Pathobiology and Diagnostic Investigation, Michigan State University, East Lansing, MI 48823, USA
| | - Erik Shapiro
- Department of Radiology, Michigan State University, East Lansing, MI 48823, USA
- Institute for Quantitative Health Sciences and Engineering, Michigan State University, East Lansing, MI 48823, USA
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11
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Mazy D, Ma Z, Chung-Tze-Cheong C, Lamer S, Li J, Nault ML. Modification of the properties of a suture thread with a tough gel coating: A baseline ex-vivo study. J Orthop Res 2023; 41:1815-1820. [PMID: 36610018 DOI: 10.1002/jor.25514] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/23/2022] [Accepted: 01/04/2023] [Indexed: 01/09/2023]
Abstract
The mechanical properties of sutures are important for wound closure and meniscus repair. A tough gel coating technology has been developed to modify and functionalize sutures, but its effects on suture degradation remain unexplored. Our aim is to investigate how a tough gel coating mediates the properties of the suture. The Polyglactin910 (Vicryl) suture was chosen because it is widely used, strong, easy to handle, and degradable. This study compared six pristine Vicryl sutures and six coated Vicryl sutures at 0, 2, 4, and 6 weeks. All the sutures were soaked in phosphate-buffered saline (PBS), to mimic degradation in physiological conditions, and tensile strength was tested at each time point. The pH of the soaking mediums was measured weekly and compared at 4, 5, and 6 weeks. No significant difference (p = 0.059 and p = 0.576) was found between the absolute and normalized breaking force of coated and pristine Vicryl sutures at 0, 2, 4, and 6 weeks. After 4 weeks of immersion, the soaking medium became more acidic for both suture types. The decrease in pH was less significant for coated Vicryl sutures than for pristine ones (p < 0.001) at 4, 5, and 6 weeks of immersion. Although coating does not affect the strength of Vicryl sutures soaked in PBS, it can effectively act as a buffer to the acidic environment caused by suture degradation, which could help reduce inflammation. Hydrogel coating is a promising technology to modify suture characteristics.
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Affiliation(s)
- David Mazy
- Faculty of Medicine, University of Montreal, Montréal, Quebec, Canada
- Department of Surgery, CHU Sainte-Justine, Montréal, Quebec, Canada
| | - Zhenwei Ma
- Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
| | | | - Stephanie Lamer
- Faculty of Medicine, University of Montreal, Montréal, Quebec, Canada
| | - Jianyu Li
- Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
- Department of Biomedical Engineering, McGill University, Montréal, Quebec, Canada
| | - Marie-Lyne Nault
- Faculty of Medicine, University of Montreal, Montréal, Quebec, Canada
- Department of Surgery, CHU Sainte-Justine, Montréal, Quebec, Canada
- Department of Orthopedic Surgery, CIUSSS Hôpital du Sacré-Cœur de Montréal (HSCM), Montreal, Quebec, Canada
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12
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Ragab MA, Eldehna WM, Nocentini A, Bonardi A, Okda HE, Elgendy B, Ibrahim TS, Abd-Alhaseeb MM, Gratteri P, Supuran CT, Al-Karmalawy AA, Elagawany M. 4-(5-Amino-pyrazol-1-yl)benzenesulfonamide derivatives as novel multi-target anti-inflammatory agents endowed with inhibitory activity against COX-2, 5-LOX and carbonic anhydrase: Design, synthesis, and biological assessments. Eur J Med Chem 2023; 250:115180. [PMID: 36796297 DOI: 10.1016/j.ejmech.2023.115180] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/26/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023]
Abstract
In the current medical era, the single target inhibition paradigm of drug discovery has given way to the multi-target design concept. As the most intricate pathological process, inflammation gives rise to a variety of diseases. There are several drawbacks to the single target anti-inflammatory drugs currently available. Herein, we present the design and synthesis of a novel series of 4-(5-amino-pyrazol-1-yl)benzenesulfonamide derivatives (7a-j) with COX-2, 5-LOX and carbonic anhydrase (CA) inhibitory activities as potential multi-target anti-inflammatory agents. The pharmacophoric 4-(pyrazol-1-yl)benzenesulfonamide moiety in Celecoxib was used as the core scaffold and different substituted phenyl and 2-thienyl tails were grafted via a hydrazone linker to enhance inhibitory activity against hCA IX and XII isoforms, yielding target pyrazoles 7a-j. All reported pyrazoles were evaluated for their inhibitory activity against COX-1, COX-2, and 5-LOX. Pyrazoles 7a, 7b, and 7j showed the best inhibitory activities against the COX-2 isozyme (IC50 = 49, 60 and 60 nM, respectively) and against 5-LOX (IC50 = 2.4, 1.9, and 2.5 μM, respectively) with excellent SI indices (COX-1/COX-2) of 212.24, 208.33, and 158.33, respectively. In addition, the inhibitory activities of pyrazoles 7a-j were evaluated against four different hCA isoforms I, II, IX, and XII. Both transmembrane hCA IX and XII isoforms were potently inhibited by pyrazoles 7a-j with KI values in the nanomolar range; 13.0-82.1 nM and 5.8-62.0 nM, respectively. Furthermore, pyrazoles 7a and 7b with the highest COX-2 activity and selectivity indices were evaluated in vivo for their analgesic, anti-inflammatory, and ulcerogenic activities. The serum level of the inflammatory mediators was then measured in order to confirm the anti-inflammatory activities of pyrazoles 7a and 7b.
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Affiliation(s)
- Mahmoud A Ragab
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Damanhour University, Damanhour, Buhaira, 22516, Egypt
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, P.O. Box 33516, Egypt; School of Biotechnology, Badr University in Cairo, Badr City, 11829, Egypt.
| | - Alessio Nocentini
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Alessandro Bonardi
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Hazem E Okda
- Center for Clinical Pharmacology, Washington University School of Medicine, University of Health Sciences and Pharmacy in St. Louis, MO, USA
| | - Bahaa Elgendy
- Center for Clinical Pharmacology, Washington University School of Medicine, University of Health Sciences and Pharmacy in St. Louis, MO, USA; Chemistry Department, Faculty of Science, Benha University, Benha, Egypt
| | - Tarek S Ibrahim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohammad M Abd-Alhaseeb
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Damanhour University, Damanhour, Buhaira, 22516, Egypt
| | - Paola Gratteri
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Claudiu T Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy.
| | - Ahmed A Al-Karmalawy
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th of October City, Giza, 12566, Egypt
| | - Mohamed Elagawany
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Damanhour University, Damanhour, Buhaira, 22516, Egypt.
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13
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Boraschi D, Duschl A, Lynch I, Stoeger T. Editorial: Exploring impacts of combined exposures to particles and chemicals on immune reactions across living organisms. FRONTIERS IN TOXICOLOGY 2023; 5:1148374. [PMID: 36950145 PMCID: PMC10026952 DOI: 10.3389/ftox.2023.1148374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 02/27/2023] [Indexed: 03/08/2023] Open
Affiliation(s)
- Diana Boraschi
- Shenzhen Institute of Advanced Technology (SIAT), Chinese Academy of Sciences (CAS), Shenzhen, China
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Naples, Italy
- Stazione Zoologica Anton Dohrn (SZN), Napoli, Italy
- China-Italy Joint Laboratory of Pharmacobiotechnology for Medical Immunomodulation (SIAT CNR SZN), Shenzhen, China
- *Correspondence: Diana Boraschi,
| | - Albert Duschl
- Department of Biosciences and Medical Biology, Allergy Cancer BioNano Research Center (ACBN), Paris-Lodron Universitaet Salzburg, Salzburg, Austria
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Tobias Stoeger
- Institute of Lung Health and Immunity (LHI), Comprehensive Pneumology Center Munich (CPC-M), Helmholtz Center Munich, and Member of the German Center of Lung Research (DZL) CPC-M, Munich, Germany
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14
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Zai Z, Xu Y, Qian X, Li Z, Ou Z, Zhang T, Wang L, Ling Y, Peng X, Zhang Y, Chen F. Estrogen antagonizes ASIC1a-induced chondrocyte mitochondrial stress in rheumatoid arthritis. J Transl Med 2022; 20:561. [PMID: 36463203 PMCID: PMC9719153 DOI: 10.1186/s12967-022-03781-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/19/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Destruction of articular cartilage and bone is the main cause of joint dysfunction in rheumatoid arthritis (RA). Acid-sensing ion channel 1a (ASIC1a) is a key molecule that mediates the destruction of RA articular cartilage. Estrogen has been proven to have a protective effect against articular cartilage damage, however, the underlying mechanisms remain unclear. METHODS We treated rat articular chondrocytes with an acidic environment, analyzed the expression levels of mitochondrial stress protein HSP10, ClpP, LONP1 by q-PCR and immunofluorescence staining. Transmission electron microscopy was used to analyze the mitochondrial morphological changes. Laser confocal microscopy was used to analyze the Ca2+, mitochondrial membrane potential (Δψm) and reactive oxygen species (ROS) level. Moreover, ASIC1a specific inhibitor Psalmotoxin 1 (Pctx-1) and Ethylene Glycol Tetraacetic Acid (EGTA) were used to observe whether acid stimulation damage mitochondrial function through Ca2+ influx mediated by ASIC1a and whether pretreatment with estrogen could counteract these phenomena. Furthermore, the ovariectomized (OVX) adjuvant arthritis (AA) rat model was treated with estrogen to explore the effect of estrogen on disease progression. RESULTS Our results indicated that HSP10, ClpP, LONP1 protein and mRNA expression and mitochondrial ROS level were elevated in acid-stimulated chondrocytes. Moreover, acid stimulation decreased mitochondrial membrane potential and damaged mitochondrial structure of chondrocytes. Furthermore, ASIC1a specific inhibitor PcTx-1 and EGTA inhibited acid-induced mitochondrial abnormalities. In addition, estrogen could protect acid-stimulated induced mitochondrial stress by regulating the activity of ASIC1a in rat chondrocytes and protects cartilage damage in OVX AA rat. CONCLUSIONS Extracellular acidification induces mitochondrial stress by activating ASIC1a, leading to the damage of rat articular chondrocytes. Estrogen antagonizes acidosis-induced joint damage by inhibiting ASIC1a activity. Our study provides new insights into the protective effect and mechanism of action of estrogen in RA.
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Affiliation(s)
- Zhuoyan Zai
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Yayun Xu
- grid.186775.a0000 0000 9490 772XSchool of Public Health, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Xuewen Qian
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Zihan Li
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Ziyao Ou
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Tao Zhang
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Longfei Wang
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Yian Ling
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
| | - Xiaoqing Peng
- grid.412679.f0000 0004 1771 3402Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022 Anhui China
| | - Yihao Zhang
- grid.186775.a0000 0000 9490 772XDepartment of Toxicology, School of Public Health, Anhui Medical University, Hefei, China ,Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Hefei, China
| | - Feihu Chen
- grid.186775.a0000 0000 9490 772XSchool of Pharmacy, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XInflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China ,grid.186775.a0000 0000 9490 772XAnhui Province Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, No. 81 Mei Shan Road, Shu Shan District, Hefei, 230032 Anhui China
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15
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Red-light responsive photoCORM activated in aqueous acid solution. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Macrophage polarization in THP-1 cell line and primary monocytes: A systematic review. Differentiation 2022; 128:67-82. [DOI: 10.1016/j.diff.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 09/27/2022] [Accepted: 10/02/2022] [Indexed: 11/21/2022]
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17
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Tariq H, Dobre M. Metabolic acidosis post kidney transplantation. Front Physiol 2022; 13:989816. [PMID: 36082221 PMCID: PMC9445136 DOI: 10.3389/fphys.2022.989816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/01/2022] [Indexed: 11/23/2022] Open
Abstract
Metabolic acidosis, a common complication in patients with chronic kidney disease (CKD), results in a multitude of deleterious effects. Though the restoration of kidney function following transplantation is generally accompanied by a correction of metabolic acidosis, a subset of transplant recipients remains afflicted by this ailment and its subsequent morbidities. The vulnerability of kidney allografts to metabolic acidosis can be attributed to reasons similar to pathogenesis of acidosis in non-transplant CKD, and to transplant specific causes, including donor related, recipient related, immune mediated factors, and immunosuppressive medications. Correction of metabolic acidosis in kidney transplantation either with alkali therapy or through dietary manipulations may have potential benefits and the results of such clinical trials are eagerly awaited. This review summarizes the published evidence on the pathogenesis and clinical consequences of chronic metabolic acidosis in kidney transplant recipients.
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Affiliation(s)
- Hafsa Tariq
- Division of Nephrology, University of Rochester Medical Center, Rochester, NY, United States
| | - Mirela Dobre
- Division of Nephrology and Hypertension, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, United States
- *Correspondence: Mirela Dobre,
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18
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Imenez Silva PH, Mohebbi N. Kidney metabolism and acid-base control: back to the basics. Pflugers Arch 2022; 474:919-934. [PMID: 35513635 PMCID: PMC9338915 DOI: 10.1007/s00424-022-02696-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/27/2022] [Accepted: 04/28/2022] [Indexed: 01/18/2023]
Abstract
Kidneys are central in the regulation of multiple physiological functions, such as removal of metabolic wastes and toxins, maintenance of electrolyte and fluid balance, and control of pH homeostasis. In addition, kidneys participate in systemic gluconeogenesis and in the production or activation of hormones. Acid-base conditions influence all these functions concomitantly. Healthy kidneys properly coordinate a series of physiological responses in the face of acute and chronic acid-base disorders. However, injured kidneys have a reduced capacity to adapt to such challenges. Chronic kidney disease patients are an example of individuals typically exposed to chronic and progressive metabolic acidosis. Their organisms undergo a series of alterations that brake large detrimental changes in the homeostasis of several parameters, but these alterations may also operate as further drivers of kidney damage. Acid-base disorders lead not only to changes in mechanisms involved in acid-base balance maintenance, but they also affect multiple other mechanisms tightly wired to it. In this review article, we explore the basic renal activities involved in the maintenance of acid-base balance and show how they are interconnected to cell energy metabolism and other important intracellular activities. These intertwined relationships have been investigated for more than a century, but a modern conceptual organization of these events is lacking. We propose that pH homeostasis indissociably interacts with central pathways that drive progression of chronic kidney disease, such as inflammation and metabolism, independent of etiology.
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Affiliation(s)
- Pedro Henrique Imenez Silva
- Institute of Physiology, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
- National Center of Competence in Research NCCR Kidney.CH, Zurich, Switzerland.
| | - Nilufar Mohebbi
- National Center of Competence in Research NCCR Kidney.CH, Zurich, Switzerland
- Praxis Und Dialysezentrum Zurich, Zurich, Switzerland
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19
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Ho JQ, Abramowitz MK. Clinical Consequences of Metabolic Acidosis-Muscle. Adv Chronic Kidney Dis 2022; 29:395-405. [PMID: 36175077 DOI: 10.1053/j.ackd.2022.04.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/10/2022] [Accepted: 04/25/2022] [Indexed: 01/25/2023]
Abstract
Metabolic acidosis is common in people with chronic kidney disease and can contribute to functional decline, morbidity, and mortality. One avenue through which metabolic acidosis can result in these adverse clinical outcomes is by negatively impacting skeletal muscle; this can occur through several pathways. First, metabolic acidosis promotes protein degradation and impairs protein synthesis, which lead to muscle breakdown. Second, metabolic acidosis hinders mitochondrial function, which decreases oxidative phosphorylation and reduces energy production. Third, metabolic acidosis directly limits muscle contraction. The purpose of this review is to examine the specific mechanisms of each pathway through which metabolic acidosis affects muscle, the impact of metabolic acidosis on physical function, and the effect of treating metabolic acidosis on functional outcomes.
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Affiliation(s)
- Jim Q Ho
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY
| | - Matthew K Abramowitz
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY; Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY; Diabetes Research Center, Albert Einstein College of Medicine, Bronx, NY; Fleischer Institute for Diabetes and Metabolism, Albert Einstein College of Medicine, Bronx, NY.
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20
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Luan SH, Yang YQ, Ye MP, Liu H, Rao QF, Kong JL, Wu FR. ASIC1a promotes hepatic stellate cell activation through the exosomal miR-301a-3p/BTG1 pathway. Int J Biol Macromol 2022; 211:128-139. [PMID: 35561854 DOI: 10.1016/j.ijbiomac.2022.05.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 12/11/2022]
Abstract
Activation of hepatic stellate cells (HSCs) is a key cause of liver fibrosis. However, the mechanisms leading to the activation of HSCs are not fully understood. In the pathological process, acid-sensing ion channel 1a (ASIC1a) is widely involved in the development of inflammatory diseases, suggesting that ASIC1a may play an important role in liver fibrosis. We found that in an acidic environment, ASIC1a leads to HSC-T6 cell activation. Meanwhile, exosomes produced by activated HSC-T6 cells (HSC-EXOs) can be reabsorbed by quiescent HSC-T6 cells to promote their activation. Exosomes mainly carry miRNAs involved in intercellular information exchange. We performed exosome miRNA whole transcriptome sequencing. The results indicated that the acidic environment could alter the miRNA expression profile in the exosomes of HSC-T6 cells. Further studies revealed that ASIC1a promotes the activation of HSCs by regulating miR-301a-3p targeting B-cell translocation gene 1 (BTG1). In conclusion, our study found that ASIC1a may affect HSC activation through the exosomal miR-301a-3p/BTG1 axis, and inhibiting ASIC1a may be a promising treatment strategy for liver fibrosis.
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Affiliation(s)
- Shao-Hua Luan
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | | | - Man-Ping Ye
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Hui Liu
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Qiu-Fan Rao
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Jin-Ling Kong
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China
| | - Fan-Rong Wu
- Institute for Liver Diseases of Anhui Medical University, Hefei, China; The Key Laboratory of Anti-inflammatory and Immune Medicines, Ministry of Education, Hefei, China; Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, China.
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21
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Imenez Silva PH, Câmara NO, Wagner CA. Role of proton-activated G protein-coupled receptors in pathophysiology. Am J Physiol Cell Physiol 2022; 323:C400-C414. [PMID: 35759438 DOI: 10.1152/ajpcell.00114.2022] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Local acidification is a common feature of many disease processes such as inflammation, infarction, or solid tumor growth. Acidic pH is not merely a sequelae of disease but contributes to recruitment and regulation of immune cells, modifies metabolism of parenchymal, immune and tumor cells, modulates fibrosis, vascular permeability, oxygen availability and consumption, invasiveness of tumor cells, and impacts on cell survival. Thus, multiple pH-sensing mechanisms must exist in cells involved in these processes. These pH-sensors play important roles in normal physiology and pathophysiology, and hence might be attractive targets for pharmacological interventions. Among the pH-sensing mechanisms, OGR1 (GPR68), GPR4 (GPR4), and TDAG8 (GPR65) have emerged as important molecules. These G protein-coupled receptors are widely expressed, are upregulated in inflammation and tumors, sense changes in extracellular pH in the range between pH 8 and 6, and are involved in modulating key processes in inflammation, tumor biology, and fibrosis. This review discusses key features of these receptors and highlights important disease states and pathways affected by their activity.
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Affiliation(s)
- Pedro H Imenez Silva
- Institute of Physiology, University of Zurich, Zurich, Switzerland.,National Center of Competence in Research NCCR Kidney.CH, Switzerland
| | - Niels Olsen Câmara
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Carsten A Wagner
- Institute of Physiology, University of Zurich, Zurich, Switzerland.,National Center of Competence in Research NCCR Kidney.CH, Switzerland
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22
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Wu JJ, Sun ZL, Liu SY, Chen ZH, Yuan ZD, Zou ML, Teng YY, Li YY, Guo DY, Yuan FL. The ASIC3-M-CSF-M2 macrophage-positive feedback loop modulates fibroblast-to-myofibroblast differentiation in skin fibrosis pathogenesis. Cell Death Dis 2022; 13:527. [PMID: 35661105 PMCID: PMC9167818 DOI: 10.1038/s41419-022-04981-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 05/23/2022] [Accepted: 05/26/2022] [Indexed: 01/21/2023]
Abstract
Inflammation is one of the main pathological features leading to skin fibrosis and a key factor leading to the progression of skin fibrosis. Acidosis caused by a decrease in extracellular pH is a sign of the inflammatory process. Acid-sensing ion channels (ASICs) are ligand-gated ion channels on the cell membrane that sense the drop in extracellular pH. The molecular mechanisms by which skin fibroblasts are regulated by acid-sensing ion channel 3 (ASIC3) remain unknown. This study investigated whether ASIC3 is related to inflammation and skin fibrosis and explored the underlying mechanisms. We demonstrate that macrophage colony-stimulating factor (M-CSF) is a direct target of ASIC3, and ASIC3 activation promotes M-CSF transcriptional regulation of macrophages for M2 polarization. The polarization of M2 macrophages transduced by the ASIC3-M-CSF signal promotes the differentiation of fibroblasts into myofibroblasts through transforming growth factor β1 (TGF-β1), thereby producing an ASIC3-M-CSF-TGF-β1 positive feedback loop. Targeting ASIC3 may be a new treatment strategy for skin fibrosis.
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Affiliation(s)
- Jun-Jie Wu
- grid.258151.a0000 0001 0708 1323Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Zi-Li Sun
- grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
| | - Si-Yu Liu
- grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
| | - Zhong-Hua Chen
- grid.260483.b0000 0000 9530 8833The Nantong University, Nantong, Jiangsu 226000 China
| | - Zheng-Dong Yuan
- grid.258151.a0000 0001 0708 1323Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Ming-Li Zou
- grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
| | - Ying-Ying Teng
- grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Yue-Yue Li
- grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Dan-Yang Guo
- grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China
| | - Feng-Lai Yuan
- grid.258151.a0000 0001 0708 1323Institute of Integrated Chinese and Western Medicine, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.258151.a0000 0001 0708 1323The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu 214041 China ,grid.410745.30000 0004 1765 1045Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210000 China
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23
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Imenez Silva PH, Wagner CA. Physiological relevance of proton-activated GPCRs. Pflugers Arch 2022; 474:487-504. [PMID: 35247105 PMCID: PMC8993716 DOI: 10.1007/s00424-022-02671-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 12/12/2022]
Abstract
The detection of H+ concentration variations in the extracellular milieu is accomplished by a series of specialized and non-specialized pH-sensing mechanisms. The proton-activated G protein-coupled receptors (GPCRs) GPR4 (Gpr4), TDAG8 (Gpr65), and OGR1 (Gpr68) form a subfamily of proteins capable of triggering intracellular signaling in response to alterations in extracellular pH around physiological values, i.e., in the range between pH 7.5 and 6.5. Expression of these receptors is widespread for GPR4 and OGR1 with particularly high levels in endothelial cells and vascular smooth muscle cells, respectively, while expression of TDAG8 appears to be more restricted to the immune compartment. These receptors have been linked to several well-studied pH-dependent physiological activities including central control of respiration, renal adaption to changes in acid-base status, secretion of insulin and peripheral responsiveness to insulin, mechanosensation, and cellular chemotaxis. Their role in pathological processes such as the genesis and progression of several inflammatory diseases (asthma, inflammatory bowel disease), and tumor cell metabolism and invasiveness, is increasingly receiving more attention and makes these receptors novel and interesting targets for therapy. In this review, we cover the role of these receptors in physiological processes and will briefly discuss some implications for disease processes.
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Affiliation(s)
- Pedro H Imenez Silva
- Institute of Physiology, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
- National Center of Competence in Research NCCR Kidney.CH, Zurich, Switzerland.
| | - Carsten A Wagner
- Institute of Physiology, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
- National Center of Competence in Research NCCR Kidney.CH, Zurich, Switzerland.
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24
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Epithelial–Fibroblast Crosstalk Protects against Acidosis-Induced Inflammatory and Fibrotic Alterations. Biomedicines 2022; 10:biomedicines10030681. [PMID: 35327483 PMCID: PMC8945333 DOI: 10.3390/biomedicines10030681] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/21/2022] Open
Abstract
Pathogenesis of chronic kidney disease (CKD) is accompanied by extracellular acidosis inflammation, fibrosis and epithelial-to-mesenchymal transition (EMT). The aim of this study was to assess the influence of acidosis on tubule epithelial cells (NRK-52E) and fibroblasts (NRK-49F) in dependence of cellular crosstalk. NRK-52E and NRK-49F were used in mono- and co-cultures, and were treated with acidic media (pH 6.0) for 48 h. The intracellular proteins were measured by Western blot. Secreted proteins were measured by ELISA. Distribution of E-cadherin was assessed by immunofluorescence and epithelial barrier function by FITC-dextran diffusion. Inflammation: Acidosis led to an increase in COX-2 in NRK-52E and TNF in NRK-49F in monoculture. In co-culture, this effect was reversed. EMT: Acidosis led to an increase in vimentin protein in both cell lines, whereas in co-culture, the effect was abolished. In NRK-52E, the E-cadherin expression was unchanged, but subcellular E-cadherin showed a disturbed distribution, and cellular barrier function was decreased. Fibrosis: Monoculture acidosis led to an increased secretion of collagen I and fibronectin in NRK-52E and collagen I in NRK-49F. In co-culture, the total collagen I secretion was unchanged, and fibronectin secretion was decreased. Intercellular crosstalk between epithelial cells and fibroblasts has a protective function regarding the development of acidosis-induced damage.
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25
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Holland M, Bjanes E, Nizet V, Dillon N. Bicarbonate modulates delafloxacin activity against MDR Staphylococcus aureus and Pseudomonas aeruginosa. J Antimicrob Chemother 2022; 77:433-442. [PMID: 34893834 PMCID: PMC8809187 DOI: 10.1093/jac/dkab421] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 10/13/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES To investigate the utility of recently approved delafloxacin and other fluoroquinolones against leading MDR bacterial pathogens under physiologically relevant conditions. METHODS MIC and MBC assays were conducted for MDR strains of Staphylococcus aureus, Pseudomonas aeruginosa, Acinetobacter baumannii and Klebsiella pneumoniae in the standard antibiotic susceptibility testing medium CAMHB, amended Roswell-Park Memorial Institute tissue culture medium (RPMI+) or 20% fresh human whole blood. In vivo correlation of in vitro findings was performed in a murine P. aeruginosa pneumonia model. Mechanistic bases for the findings were explored by altering media conditions and with established fluoroquinolone accumulation assays. RESULTS Fluoroquinolone MICs were increased in RPMI+ compared with CAMHB for all four MDR pathogens. Specifically, delafloxacin MICs were increased 32-fold versus MDR S. aureus and 8-fold versus MDR P. aeruginosa. MBC assays in 20% human whole blood and a murine MDR P. aeruginosa pneumonia model both confirmed that delafloxacin activity was reduced under physiological conditions. Bicarbonate (HCO3-), a key component of host physiology found in RPMI+ but absent from CAMHB, dictated delafloxacin susceptibility in CAMHB and RPMI+ by impairing its intracellular accumulation. CONCLUSIONS Standard in vitro antibiotic susceptibility testing conditions overpredicted the effectiveness of delafloxacin against MDR pathogens by failing to capture the role of the biological buffer HCO3- to impair delafloxacin accumulation. This work showcases limitations of our current antibiotic susceptibility testing paradigm and highlights the importance of understanding host microenvironmental conditions that impact true clinical efficacy.
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Affiliation(s)
- Mische Holland
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA
| | - Elisabet Bjanes
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA
- Collaborative to Halt Antibiotic-Resistant Microbes (CHARM), UC San Diego, La Jolla, CA 92093, USA
| | - Victor Nizet
- Department of Pediatrics, UC San Diego, La Jolla, CA 92093, USA
- Collaborative to Halt Antibiotic-Resistant Microbes (CHARM), UC San Diego, La Jolla, CA 92093, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, UC San Diego, La Jolla, CA 92093, USA
| | - Nicholas Dillon
- Collaborative to Halt Antibiotic-Resistant Microbes (CHARM), UC San Diego, La Jolla, CA 92093, USA
- Department of Biological Sciences, UT Dallas, Richardson, TX 75080, USA
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26
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The Release of Inflammatory Mediators from Acid-Stimulated Mesenchymal Stromal Cells Favours Tumour Invasiveness and Metastasis in Osteosarcoma. Cancers (Basel) 2021; 13:cancers13225855. [PMID: 34831016 PMCID: PMC8616358 DOI: 10.3390/cancers13225855] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/10/2021] [Accepted: 11/17/2021] [Indexed: 12/28/2022] Open
Abstract
Simple Summary We aimed to validate the correlation between tumour glycolysis/acidosis and inflammation in osteosarcoma-associated mesenchymal stromal cells and investigate the role of acidity-induced inflammation in the development of metastasis in this very aggressive cancer. We confirmed the presence of an acidic microenvironment in osteosarcoma xenografts, both subcutaneous and orthotopic, using state-of-the-art imaging technologies; corroborated the correlation between tumour glycolysis, acidosis, and inflammatory markers in human patients; and finally, explored the use of anti-IL6 antibody to target these pathogenic pathways, using advanced 3D microfluidic models. In the future, advanced imaging systems for the measurement of tumour glycolysis and/or pH may help identify osteosarcoma patients who would benefit from anti-IL6 therapies to complement conventional therapy. Abstract Osteosarcoma is the most frequent primary malignant bone tumour with an impressive tendency to metastasise. Highly proliferative tumour cells release a remarkable amount of protons into the extracellular space that activates the NF-kB inflammatory pathway in adjacent stromal cells. In this study, we further validated the correlation between tumour glycolysis/acidosis and its role in metastases. In patients, at diagnosis, we found high circulating levels of inflammatory mediators (IL6, IL8 and miR-136-5p-containing extracellular vesicles). IL6 serum levels significantly correlated with disease-free survival and 18F-FDG PET/CT uptake, an indirect measurement of tumour glycolysis and, hence, of acidosis. In vivo subcutaneous and orthotopic models, co-injected with mesenchymal stromal (MSC) and osteosarcoma cells, formed an acidic tumour microenvironment (mean pH 6.86, as assessed by in vivo MRI-CEST pH imaging). In these xenografts, we enlightened the expression of both IL6 and the NF-kB complex subunit in stromal cells infiltrating the tumour acidic area. The co-injection with MSC also significantly increased lung metastases. Finally, by using 3D microfluidic models, we directly showed the promotion of osteosarcoma invasiveness by acidosis via IL6 and MSC. In conclusion, osteosarcoma-associated MSC react to intratumoural acidosis by triggering an inflammatory response that, in turn, promotes tumour invasiveness at the primary site toward metastasis development.
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27
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Foster VS, Rash LD, King GF, Rank MM. Acid-Sensing Ion Channels: Expression and Function in Resident and Infiltrating Immune Cells in the Central Nervous System. Front Cell Neurosci 2021; 15:738043. [PMID: 34602982 PMCID: PMC8484650 DOI: 10.3389/fncel.2021.738043] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/30/2021] [Indexed: 11/15/2022] Open
Abstract
Peripheral and central immune cells are critical for fighting disease, but they can also play a pivotal role in the onset and/or progression of a variety of neurological conditions that affect the central nervous system (CNS). Tissue acidosis is often present in CNS pathologies such as multiple sclerosis, epileptic seizures, and depression, and local pH is also reduced during periods of ischemia following stroke, traumatic brain injury, and spinal cord injury. These pathological increases in extracellular acidity can activate a class of proton-gated channels known as acid-sensing ion channels (ASICs). ASICs have been primarily studied due to their ubiquitous expression throughout the nervous system, but it is less well recognized that they are also found in various types of immune cells. In this review, we explore what is currently known about the expression of ASICs in both peripheral and CNS-resident immune cells, and how channel activation during pathological tissue acidosis may lead to altered immune cell function that in turn modulates inflammatory pathology in the CNS. We identify gaps in the literature where ASICs and immune cell function has not been characterized, such as neurotrauma. Knowledge of the contribution of ASICs to immune cell function in neuropathology will be critical for determining whether the therapeutic benefits of ASIC inhibition might be due in part to an effect on immune cells.
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Affiliation(s)
- Victoria S. Foster
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
| | - Lachlan D. Rash
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Glenn F. King
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
- Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, St Lucia, QLD, Australia
| | - Michelle M. Rank
- Anatomy and Physiology, Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, VIC, Australia
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28
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Di Pompo G, Errani C, Gillies R, Mercatali L, Ibrahim T, Tamanti J, Baldini N, Avnet S. Acid-Induced Inflammatory Cytokines in Osteoblasts: A Guided Path to Osteolysis in Bone Metastasis. Front Cell Dev Biol 2021; 9:678532. [PMID: 34124067 PMCID: PMC8194084 DOI: 10.3389/fcell.2021.678532] [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: 03/09/2021] [Accepted: 04/15/2021] [Indexed: 12/25/2022] Open
Abstract
Bone metastasis (BM) is a dismal complication of cancer that frequently occurs in patients with advanced carcinomas and that often manifests as an osteolytic lesion. In bone, tumor cells promote an imbalance in bone remodeling via the release of growth factors that, directly or indirectly, stimulate osteoclast resorption activity. However, carcinoma cells are also characterized by an altered metabolism responsible for a decrease of extracellular pH, which, in turn, directly intensifies osteoclast bone erosion. Here, we speculated that tumor-derived acidosis causes the osteoblast–osteoclast uncoupling in BM by modulating the pro-osteoclastogenic phenotype of osteoblasts. According to our results, a low pH recruits osteoclast precursors and promotes their differentiation through the secretome of acid-stressed osteoblasts that includes pro-osteoclastogenic factors and inflammatory mediators, such as RANKL, M-CSF, TNF, IL-6, and, above the others, IL-8. The treatment with the anti-IL-6R antibody tocilizumab or with an anti-IL-8 antibody reverted this effect. Finally, in a series of BM patients, circulating levels of the osteolytic marker TRACP5b significantly correlated with IL-8. Our findings brought out that tumor-derived acidosis promotes excessive osteolysis at least in part by inducing an inflammatory phenotype in osteoblasts, and these results strengthen the use of anti-IL-6 or anti-IL-8 strategies to treat osteolysis in BM.
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Affiliation(s)
- Gemma Di Pompo
- Biomedical Science and Technologies Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Costantino Errani
- Orthopaedic Oncology Surgical Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Robert Gillies
- Department of Cancer Physiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, United States
| | - Laura Mercatali
- Osteoncology and Rare Tumors Center, IRCCS Istituto Romagnolo Per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Toni Ibrahim
- Osteoncology and Rare Tumors Center, IRCCS Istituto Romagnolo Per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy
| | - Jacopo Tamanti
- National Tumor Assistance (ANT) Foundation, Bologna, Italy
| | - Nicola Baldini
- Biomedical Science and Technologies Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Sofia Avnet
- Biomedical Science and Technologies Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
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29
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Hubbard JJ, Pyzik M, Rath T, Kozicky LK, Sand KMK, Gandhi AK, Grevys A, Foss S, Menzies SC, Glickman JN, Fiebiger E, Roopenian DC, Sandlie I, Andersen JT, Sly LM, Baker K, Blumberg RS. FcRn is a CD32a coreceptor that determines susceptibility to IgG immune complex-driven autoimmunity. J Exp Med 2021; 217:151942. [PMID: 32658257 PMCID: PMC7537387 DOI: 10.1084/jem.20200359] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/21/2020] [Accepted: 05/29/2020] [Indexed: 12/18/2022] Open
Abstract
IgG immune complexes (ICs) promote autoimmunity through binding fragment crystallizable (Fc) γ-receptors (FcγRs). Of these, the highly prevalent FcγRIIa (CD32a) histidine (H)-131 variant (CD32aH) is strongly linked to human autoimmune diseases through unclear mechanisms. We show that, relative to the CD32a arginine (R)-131 (CD32aR) variant, CD32aH more avidly bound human (h) IgG1 IC and formed a ternary complex with the neonatal Fc receptor (FcRn) under acidic conditions. In primary human and mouse cells, both CD32a variants required FcRn to induce innate and adaptive immune responses to hIgG1 ICs, which were augmented in the setting of CD32aH. Conversely, FcRn induced responses to IgG IC independently of classical FcγR, but optimal responses required FcRn and FcγR. Finally, FcRn blockade decreased inflammation in a rheumatoid arthritis model without reducing circulating autoantibody levels, providing support for FcRn’s direct role in IgG IC-associated inflammation. Thus, CD32a and FcRn coregulate IgG IC-mediated immunity in a manner favoring the CD32aH variant, providing a novel mechanism for its disease association.
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Affiliation(s)
- Jonathan J Hubbard
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Michal Pyzik
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Timo Rath
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Lisa K Kozicky
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Kine M K Sand
- Department of Biosciences, Centre for Immune Regulation, University of Oslo, Oslo, Norway.,Department of Immunology, Centre for Immune Regulation, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway.,Department of Pharmacology, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Amit K Gandhi
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Algirdas Grevys
- Department of Biosciences, Centre for Immune Regulation, University of Oslo, Oslo, Norway.,Department of Immunology, Centre for Immune Regulation, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway.,Department of Pharmacology, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Stian Foss
- Department of Biosciences, Centre for Immune Regulation, University of Oslo, Oslo, Norway.,Department of Immunology, Centre for Immune Regulation, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway.,Department of Pharmacology, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Susan C Menzies
- Division of Gastroenterology, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jonathan N Glickman
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Edda Fiebiger
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | | | - Inger Sandlie
- Department of Biosciences, Centre for Immune Regulation, University of Oslo, Oslo, Norway.,Department of Immunology, Centre for Immune Regulation, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway.,Department of Pharmacology, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Jan Terje Andersen
- Department of Biosciences, Centre for Immune Regulation, University of Oslo, Oslo, Norway.,Department of Immunology, Centre for Immune Regulation, Oslo University Hospital Rikshospitalet and University of Oslo, Oslo, Norway.,Department of Pharmacology, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Laura M Sly
- Division of Gastroenterology, Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Kristi Baker
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Richard S Blumberg
- Division of Gastroenterology, Hepatology, and Endoscopy, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Harvard Digestive Diseases Center, Boston, MA
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30
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Giuliani T, Di Gioia A, Andrianello S, Marchegiani G, Bassi C. Pancreatoduodenectomy associated with colonic resections: indications, pitfalls, and outcomes. Updates Surg 2021; 73:379-390. [PMID: 33582983 DOI: 10.1007/s13304-021-00996-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 02/04/2021] [Indexed: 10/22/2022]
Abstract
Pancreatoduodenectomy (PD) associated with colonic resections (CR) (PD-CR) might be a viable option in case of locally advanced periampullary tumors or right colon cancer. The aim of this review was to reappraise the indications and outcomes of PD-CR focusing on the occurrence of postoperative pancreatic fistula (POPF) and colonic anastomotic leak (CAL). A systematic literature search was performed in Medline and Cochrane Central Register of Controlled Trials (CENTRAL) for studies published between 2000 and 2020 concerning PD-CR for periampullary or colonic neoplasms. Twenty-seven studies were selected. Morbidity after PD-CR ranged from 12 to 65% and surgery-related mortality was approximately 10%. When reported, the rates of POPF and AL were as high as 40% and 33%, respectively. The oncological results were strictly linked to the nature of the primary tumor and did not significantly differ from those achieved with standard resections. Surgical radicality and nodal status resulted the main determinants of outcome for pancreatic and colonic cancer, respectively. Solid evidence about the surgical outcomes of PD-CR is lacking, mainly due to the small proportion of patients undergoing such combined resection. Given the elevated surgical risk, a multidisciplinary evaluation is recommended for patient's selection. The increasing use of neoadjuvant therapies is expected to further change the indications and outcomes of PD-CR in the next future.
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Affiliation(s)
- Tommaso Giuliani
- Department of General and Pancreatic Surgery, Verona Hospital Trust, University of Verona, P.le A. Scuro 10, 37134, Verona, Italy.
| | - Anthony Di Gioia
- Department of General and Pancreatic Surgery, Verona Hospital Trust, University of Verona, P.le A. Scuro 10, 37134, Verona, Italy
| | - Stefano Andrianello
- Department of General and Pancreatic Surgery, Verona Hospital Trust, University of Verona, P.le A. Scuro 10, 37134, Verona, Italy
| | - Giovanni Marchegiani
- Department of General and Pancreatic Surgery, Verona Hospital Trust, University of Verona, P.le A. Scuro 10, 37134, Verona, Italy
| | - Claudio Bassi
- Department of General and Pancreatic Surgery, Verona Hospital Trust, University of Verona, P.le A. Scuro 10, 37134, Verona, Italy
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31
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Weng CY, Kao CX, Chang TS, Huang YH. Immuno-Metabolism: The Role of Cancer Niche in Immune Checkpoint Inhibitor Resistance. Int J Mol Sci 2021; 22:1258. [PMID: 33514004 PMCID: PMC7865434 DOI: 10.3390/ijms22031258] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/24/2021] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
The use of immune checkpoint inhibitors (ICI) in treating cancer has revolutionized the approach to eradicate cancer cells by reactivating immune responses. However, only a subset of patients benefits from this treatment; the majority remains unresponsive or develops resistance to ICI therapy. Increasing evidence suggests that metabolic machinery in the tumor microenvironment (TME) plays a role in the development of ICI resistance. Within the TME, nutrients and oxygen are scarce, forcing immune cells to undergo metabolic reprogramming to adapt to harsh conditions. Cancer-induced metabolic deregulation in immune cells can attenuate their anti-cancer properties, but can also increase their immunosuppressive properties. Therefore, targeting metabolic pathways of immune cells in the TME may strengthen the efficacy of ICIs and prevent ICI resistance. In this review, we discuss the interactions of immune cells and metabolic alterations in the TME. We also discuss current therapies targeting cellular metabolism in combination with ICIs for the treatment of cancer, and provide possible mechanisms behind the cellular metabolic rewiring that may improve clinical outcomes.
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Affiliation(s)
- Chao-Yuan Weng
- School of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan;
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
| | - Cheng-Xiang Kao
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Te-Sheng Chang
- School of Traditional Chinese Medicine, College of Medicine, Chang Gung University, Taoyuan 33382, Taiwan
- Division of Internal Medicine, Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan
| | - Yen-Hua Huang
- Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan;
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center of Cell Therapy and Regeneration Medicine, Taipei Medical University, Taipei 11031, Taiwan
- International Ph.D. Program for Cell Therapy and Regeneration Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Center for Reproductive Medicine, Taipei Medical University Hospital, Taipei Medical University, Taipei 11031, Taiwan
- Comprehensive Cancer Center of Taipei Medical University, Taipei 11031, Taiwan
- PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, Taiwan
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Omelka R, Kovacova V, Mondockova V, Grosskopf B, Kolesarova A, Martiniakova M. Cyanogenic glycoside amygdalin influences functions of human osteoblasts in vitro. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:109-116. [PMID: 33504261 DOI: 10.1080/03601234.2020.1852054] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Amygdalin has been promoted as an alternative cancer cure. However, it is still unclear how this cyanogenic glycoside affects non-cancer cells including bone cells. This study first investigated the impact of amygdalin on viability, morphology and expression of important genes in human osteoblasts in vitro. Primary human osteoblast cultures were exposed to amygdalin at concentrations 0; 0.1; 1 and 10 mg/mL in growth medium for 72 h. Cell viability, osteoblasts morphology and expression of 10 genes associated with osteoblast-specific pathways, oxidative stress and cell death were determined. Osteoblasts viability was significantly decreased (-27.26%) and their size was reduced (-23.20%) at the highest concentration of amygdalin (10 mg/mL). This concentration of amygdalin down-regulated the expression of COL1A1 and ALPL genes, whereas the expression of BGLAP, TNFSF11 and WNT5A genes was increased. The osteoblast cultivation with 0.1 mg/mL amygdalin caused down-regulation of COL1A1 gene. No changes in expression were determined for RUNX2, BAX, CASP1, SOD1 and GPX1 genes among all tested concentrations of amygdalin. In conclusion, amygdalin in a high concentration negatively affected mineralization of extracellular matrix, increased bone resorption and decreased osteoblast viability. These changes were accompanied by modified expression profiles of responsible genes.
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Affiliation(s)
- Radoslav Omelka
- Department of Botany and Genetics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Veronika Kovacova
- Department of Zoology and Anthropology, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Vladimira Mondockova
- Department of Botany and Genetics, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
| | - Birgit Grosskopf
- Institute of Zoology and Anthropology, Georg-August University in Goettingen, Goettingen, Germany
| | - Adriana Kolesarova
- Department of Animal Physiology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Monika Martiniakova
- Department of Zoology and Anthropology, Faculty of Natural Sciences, Constantine the Philosopher University in Nitra, Nitra, Slovak Republic
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Kawakami T, Koike A, Maehara T, Hayashi T, Fujimori K. Bicarbonate enhances the inflammatory response by activating JAK/STAT signalling in LPS + IFN-γ-stimulated macrophages. J Biochem 2021; 167:623-631. [PMID: 31960927 DOI: 10.1093/jb/mvaa010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 01/14/2020] [Indexed: 12/14/2022] Open
Abstract
Macrophages, which develop by changing their functions according to various environmental conditions and stimuli, defend against the pathogens and play roles in homoeostasis and disease states. Bicarbonate (HCO3-) is important in the maintenance of intracellular and extracellular pH in the body. However, the effects of bicarbonate on macrophage function have not been examined. In this study, we investigated the effects of bicarbonate on macrophage activation in lipopolysaccharide (LPS) and interferon (IFN)-γ (LPS + IFN-γ)-stimulated murine macrophage-like RAW264.7 cells. The expression of the interleukin (IL)-6, inducible nitric oxide (NO) synthase and cyclooxygenase-2 genes was enhanced by sodium bicarbonate (NaHCO3) in a concentration-dependent manner in LPS + IFN-γ-stimulated RAW264.7 cells. The production of IL-6, NO2- and prostaglandin E2 was also increased by treatment with NaHCO3 in these cells. Moreover, NaHCO3-mediated elevation of inflammatory gene expression was abrogated by solute carrier (SLC) transporter inhibitors. Furthermore, its NaHCO3-mediated activation was negated by a JAK inhibitor , tofacitinib. NaHCO3-enhanced phosphorylation of STAT1, and its enhancement was abrogated by pre-treating with SLC transporter inhibitors in LPS + IFN-γ-stimulated RAW264.7 cells. In addition, similar results were obtained in murine bone marrow-derived macrophages. These results indicate that bicarbonate enhanced the inflammatory response through the JAK/STAT signalling in LPS + IFN-γ-stimulated macrophages.
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Affiliation(s)
- Tomoya Kawakami
- Department of Cardiovascular Pharmacotherapy and Toxicology.,Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Atsushi Koike
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Toko Maehara
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | | | - Ko Fujimori
- Department of Pathobiochemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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Rauschner M, Lange L, Hüsing T, Reime S, Nolze A, Maschek M, Thews O, Riemann A. Impact of the acidic environment on gene expression and functional parameters of tumors in vitro and in vivo. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:10. [PMID: 33407762 PMCID: PMC7786478 DOI: 10.1186/s13046-020-01815-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 12/13/2020] [Indexed: 02/06/2023]
Abstract
Background The low extracellular pH (pHe) of tumors resulting from glycolytic metabolism is a stress factor for the cells independent from concomitant hypoxia. The aim of the study was to analyze the impact of acidic pHe on gene expression on mRNA and protein level in two experimental tumor lines in vitro and in vivo and were compared to hypoxic conditions as well as combined acidosis+hypoxia. Methods Gene expression was analyzed in AT1 prostate and Walker-256 mammary carcinoma of the rat by Next Generation Sequencing (NGS), qPCR and Western blot. In addition, the impact of acidosis on tumor cell migration, adhesion, proliferation, cell death and mitochondrial activity was analyzed. Results NGS analyses revealed that 147 genes were uniformly regulated in both cell lines (in vitro) and 79 genes in both experimental tumors after 24 h at low pH. A subset of 25 genes was re-evaluated by qPCR and Western blot. Low pH consistently upregulated Aox1, Gls2, Gstp1, Ikbke, Per3, Pink1, Tlr5, Txnip, Ypel3 or downregulated Acat2, Brip1, Clspn, Dnajc25, Ercc6l, Mmd, Rif1, Zmpste24 whereas hypoxia alone led to a downregulation of most of the genes. Direct incubation at low pH reduced tumor cell adhesion whereas acidic pre-incubation increased the adhesive potential. In both tumor lines acidosis induced a G1-arrest (in vivo) of the cell cycle and a strong increase in necrotic cell death (but not in apoptosis). The mitochondrial O2 consumption increased gradually with decreasing pH. Conclusions These data show that acidic pHe in tumors plays an important role for gene expression independently from hypoxia. In parallel, acidosis modulates functional properties of tumors relevant for their malignant potential and which might be the result of pH-dependent gene expression.
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Affiliation(s)
- Mandy Rauschner
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Luisa Lange
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Thea Hüsing
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Sarah Reime
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Alexander Nolze
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Marcel Maschek
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Oliver Thews
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany
| | - Anne Riemann
- Institute of Physiology, University Halle-Wittenberg, Magdeburger Str. 6, 06112, Halle (Saale), Germany.
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Quade BN, Parker MD, Occhipinti R. The therapeutic importance of acid-base balance. Biochem Pharmacol 2021; 183:114278. [PMID: 33039418 PMCID: PMC7544731 DOI: 10.1016/j.bcp.2020.114278] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
Baking soda and vinegar have been used as home remedies for generations and today we are only a mouse-click away from claims that baking soda, lemon juice, and apple cider vinegar are miracles cures for everything from cancer to COVID-19. Despite these specious claims, the therapeutic value of controlling acid-base balance is indisputable and is the basis of Food and Drug Administration-approved treatments for constipation, epilepsy, metabolic acidosis, and peptic ulcers. In this narrative review, we present evidence in support of the current and potential therapeutic value of countering local and systemic acid-base imbalances, several of which do in fact involve the administration of baking soda (sodium bicarbonate). Furthermore, we discuss the side effects of pharmaceuticals on acid-base balance as well as the influence of acid-base status on the pharmacokinetic properties of drugs. Our review considers all major organ systems as well as information relevant to several clinical specialties such as anesthesiology, infectious disease, oncology, dentistry, and surgery.
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Affiliation(s)
- Bianca N Quade
- Department of Physiology and Biophysics, The State University of New York, The University at Buffalo, Buffalo, NY 14203, USA
| | - Mark D Parker
- Department of Physiology and Biophysics, The State University of New York, The University at Buffalo, Buffalo, NY 14203, USA; Department of Ophthalmology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, USA; State University of New York Eye Institute, University at Buffalo, The State University of New York, Buffalo, NY, USA
| | - Rossana Occhipinti
- Department of Physiology and Biophysics, Case Western Reserve University, School of Medicine, Cleveland, OH 44106, USA.
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A comparison of the chemical biology of hydropersulfides (RSSH) with other protective biological antioxidants and nucleophiles. Nitric Oxide 2020; 107:46-57. [PMID: 33253886 DOI: 10.1016/j.niox.2020.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/05/2020] [Accepted: 11/20/2020] [Indexed: 12/14/2022]
Abstract
The hydropersulfide (RSSH) functional group has received significant recent interest due to its unique chemical properties that set it apart from other biological species. The chemistry of RSSH predicts that one possible biological role may be as a protectant against cellular oxidative and electrophilic stress. That is, RSSH has reducing and nucleophilic properties that may combat the potentially destructive biochemistry of toxicologically relevant oxidants and electrophiles. However, there are currently numerous other molecules that have established roles in this regard. For example, ascorbate and tocopherols are potent antioxidants that quench deleterious oxidative reactions and glutathione (GSH) is a well-established and highly prevalent biological protectant against electrophile toxicity. Thus, in order to begin to understand the possible role of RSSH species as protectants against oxidative/electrophilic stress, the inherent chemical properties of RSSH versus these other protectants will be discussed and contrasted.
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Nguyen DT, Soeranaya BHT, Truong THA, Dang TT. Modular design of a hybrid hydrogel for protease-triggered enhancement of drug delivery to regulate TNF-α production by pro-inflammatory macrophages. Acta Biomater 2020; 117:167-179. [PMID: 32977069 DOI: 10.1016/j.actbio.2020.09.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/28/2020] [Accepted: 09/16/2020] [Indexed: 02/06/2023]
Abstract
Systemic drug administration has conventionally been prescribed to alleviate persistent local inflammation which is prevalent in chronic diseases. However, this approach is associated with drug-induced toxicity, particularly when the dosage exceeds that necessitated by pathological conditions of diseased tissues. Herein, we developed a modular hybrid hydrogel which could be triggered to release an anti-inflammatory drug upon exposure to elevated protease activity associated with inflammatory diseases. Modular design of the hybrid hydrogel enabled independent optimization of its protease-cleavable and drug-loaded subdomains to facilitate hydrogel formation, cleavability by matrix-metalloprotease-9 (MMP-9), and tuning drug release rate. In vitro study demonstrated the protease-triggered enhancement of drug release from the hybrid hydrogel system for effective inhibition of TNF-α production by pro-inflammatory macrophages and suggested its potential to mitigate drug-induced cytotoxicity. Using non-invasive imaging to monitor the activity of reactive oxygen species in biomaterial-induced host response, we confirmed that the hybrid hydrogel and its constituent materials did not induce adverse immune response after 5 days following their subcutaneous injection in immuno-competent mice. We subsequently incorporated this hybrid hydrogel onto a commercial wound dressing which could release the drug upon exposure to MMP-9. Together, our findings suggested that this hybrid hydrogel might be a versatile platform for on-demand drug delivery via either injectable or topical application to modulate inflammation in chronic diseases.
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Differential Effect of Extracellular Acidic Environment on IL-1β Released from Human and Mouse Phagocytes. Int J Mol Sci 2020; 21:ijms21197229. [PMID: 33007998 PMCID: PMC7582253 DOI: 10.3390/ijms21197229] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/21/2020] [Accepted: 09/28/2020] [Indexed: 02/06/2023] Open
Abstract
Areas of locally decreased pH are characteristic for many chronic inflammatory diseases such as atherosclerosis and rheumatoid arthritis, acute pathologies such as ischemia reperfusion, and tumor microenvironment. The data on the effects of extracellular acidic pH on inflammation are conflicting with respect to interleukin 1 beta (IL-1β) as one of the most potent proinflammatory cytokines. In this study, we used various mouse- and human-derived cells in order to identify potential species-specific differences in IL-1β secretion pattern in response to extracellular acidification. We found that a short incubation in mild acidic medium caused significant IL-1β release from human macrophages, however, the same effect was not observed in mouse macrophages. Rather, a marked IL-1β suppression was observed when mouse cells were stimulated with a combination of various inflammasome instigators and low pH. Upon activation of cells under acidic conditions, the cytosolic pH was reduced while metabolic activity and the expression of the main inflammasome proteins were not affected by low pH. We show that IL-1β secretion in mouse macrophages is reversible upon restoration of physiological pH. pH sensitivity of NLRP3, NLRC4 and AIM2 inflammasomes appeared to be conferred by the processes upstream of the apoptosis-associated speck-like protein containing a CARD (ASC) oligomerization and most likely contributed by the cell background rather than species-specific amino acid sequences of the sensor proteins.
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Marrazzo P, O’Leary C. Repositioning Natural Antioxidants for Therapeutic Applications in Tissue Engineering. Bioengineering (Basel) 2020; 7:E104. [PMID: 32887327 PMCID: PMC7552777 DOI: 10.3390/bioengineering7030104] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/29/2020] [Accepted: 08/31/2020] [Indexed: 12/15/2022] Open
Abstract
Although a large panel of natural antioxidants demonstrate a protective effect in preventing cellular oxidative stress, their low bioavailability limits therapeutic activity at the targeted injury site. The importance to deliver drug or cells into oxidative microenvironments can be realized with the development of biocompatible redox-modulating materials. The incorporation of antioxidant compounds within implanted biomaterials should be able to retain the antioxidant activity, while also allowing graft survival and tissue recovery. This review summarizes the recent literature reporting the combined role of natural antioxidants with biomaterials. Our review highlights how such functionalization is a promising strategy in tissue engineering to improve the engraftment and promote tissue healing or regeneration.
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Affiliation(s)
- Pasquale Marrazzo
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, Corso d’Augusto 237, 47921 Rimini (RN), Italy
| | - Cian O’Leary
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland (RCSI), 123 St Stephen’s Green, 2 D02 Dublin, Ireland;
- Science Foundation Ireland Advanced Materials and Bioengineering (AMBER) Centre, RCSI, 2 D02 Dublin, Ireland
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Zhang J, Xie B, Xi Z, Zhao L, Cen L, Yang Y. A comparable study of polyglycolic acid's degradation on macrophages' activation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110574. [DOI: 10.1016/j.msec.2019.110574] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/23/2019] [Accepted: 12/18/2019] [Indexed: 01/03/2023]
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Passos Gibson V, Fauquignon M, Ibarboure E, Leblond Chain J, Le Meins JF. Switchable Lipid Provides pH-Sensitive Properties to Lipid and Hybrid Polymer/Lipid Membranes. Polymers (Basel) 2020; 12:polym12030637. [PMID: 32168824 PMCID: PMC7183064 DOI: 10.3390/polym12030637] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/02/2020] [Accepted: 03/06/2020] [Indexed: 12/21/2022] Open
Abstract
Blending amphiphilic copolymers and lipids constitutes a novel approach to combine the advantages of polymersomes and liposomes into a new single hybrid membrane. Efforts have been made to design stimuli-responsive vesicles, in which the membrane's dynamic is modulated by specific triggers. In this investigation, we proposed the design of pH-responsive hybrid vesicles formulated with poly(dimethylsiloxane)-block-poly(ethylene oxide) backbone (PDMS36-b-PEO23) and cationic switchable lipid (CSL). The latter undergoes a pH-triggered conformational change and induces membrane destabilization. Using confocal imaging and DLS measurements, we interrogated the structural changes in CSL-doped lipid and hybrid polymer/lipid unilamellar vesicles at the micro- and nanometric scale, respectively. Both switchable giant unilamellar lipid vesicles (GUV) and hybrid polymer/lipid unilamellar vesicles (GHUV) presented dynamic morphological changes, including protrusions and fission upon acidification. At the submicron scale, scattered intensity decreased for both switchable large unilamellar vesicles (LUV) and hybrid vesicles (LHUV) under acidic pH. Finally, monitoring the fluorescence leakage of encapsulated calcein, we attested that CSL increased the permeability of GUV and GHUV in a pH-specific fashion. Altogether, these results show that switchable lipids provide a pH-sensitive behavior to hybrid polymer/lipid vesicles that could be exploited for the triggered release of drugs, cell biomimicry studies, or as bioinspired micro/nanoreactors.
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Affiliation(s)
- Victor Passos Gibson
- Gene Delivery Laboratory, Faculty of pharmacy, University of Montréal, Montréal, QC H3C 3J7, Canada;
| | - Martin Fauquignon
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, Avenue Pey Berland, F-33600 Pessac, France; (M.F.); (E.I.)
| | - Emmanuel Ibarboure
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, Avenue Pey Berland, F-33600 Pessac, France; (M.F.); (E.I.)
| | - Jeanne Leblond Chain
- Gene Delivery Laboratory, Faculty of pharmacy, University of Montréal, Montréal, QC H3C 3J7, Canada;
- ARNA Laboratory, INSERM U1212, CNRS UMR 5320, University of Bordeaux, Faculty of pharmacy, F-33016 Bordeaux, France
- Correspondence: (J.L.C.); (J.-F.L.M.)
| | - Jean-François Le Meins
- Laboratoire de Chimie des Polymères Organiques, LCPO, Université de Bordeaux, CNRS, Bordeaux INP, UMR 5629, Avenue Pey Berland, F-33600 Pessac, France; (M.F.); (E.I.)
- Correspondence: (J.L.C.); (J.-F.L.M.)
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Henry KE, Chaney AM, Nagle VL, Cropper HC, Mozaffari S, Slaybaugh G, Parang K, Andreev OA, Reshetnyak YK, James ML, Lewis JS. Demarcation of Sepsis-Induced Peripheral and Central Acidosis with pH (Low) Insertion Cycle Peptide. J Nucl Med 2020; 61:1361-1368. [PMID: 32005774 DOI: 10.2967/jnumed.119.233072] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/22/2020] [Indexed: 01/04/2023] Open
Abstract
Acidosis is a key driver for many diseases, including cancer, sepsis, and stroke. The spatiotemporal dynamics of dysregulated pH across disease remain elusive, and current diagnostic strategies do not provide localization of pH alterations. We sought to explore if PET imaging using hydrophobic cyclic peptides that partition into the cellular membrane at low extracellular pH (denoted as pH [low] insertion cycles, or pHLIC) can permit accurate in vivo visualization of acidosis. Methods: Acid-sensitive cyclic peptide c[E4W5C] pHLIC was conjugated to bifunctional maleimide-NO2A and radiolabeled with 64Cu (half-life, 12.7 h). C57BL/6J mice were administered lipopolysaccharide (15 mg/kg) or saline (vehicle) and serially imaged with [64Cu]Cu-c[E4W5C] over 24 h. Ex vivo autoradiography was performed on resected brain slices and subsequently stained with cresyl violet to enable high-resolution spatial analysis of tracer accumulation. A non-pH-sensitive cell-penetrating control peptide (c[R4W5C]) was used to confirm specificity of [64Cu]Cu-c[E4W5C]. CD11b (macrophage/microglia) and TMEM119 (microglia) immunostaining was performed to correlate extent of neuroinflammation with [64Cu]Cu-c[E4W5C] PET signal. Results: [64Cu]Cu-c[E4W5C] radiochemical yield and purity were more than 95% and more than 99%, respectively, with molar activity of more than 0.925 MBq/nmol. Significantly increased [64Cu]Cu-c[E4W5C] uptake was observed in lipopolysaccharide-treated mice (vs. vehicle) within peripheral tissues, including blood, lungs, liver, and small intestines (P < 0.001-0.05). Additionally, there was significantly increased [64Cu]Cu-c[E4W5C] uptake in the brains of lipopolysaccharide-treated animals. Autoradiography confirmed increased uptake in the cerebellum, cortex, hippocampus, striatum, and hypothalamus of lipopolysaccharide-treated mice (vs. vehicle). Immunohistochemical analysis revealed microglial or macrophage infiltration, suggesting activation in brain regions containing increased tracer uptake. [64Cu]Cu-c[R4W5C] demonstrated significantly reduced uptake in the brain and periphery of lipopolysaccharide mice compared with the acid-mediated [64Cu]Cu-c[E4W5C] tracer. Conclusion: Here, we demonstrate that a pH-sensitive PET tracer specifically detects acidosis in regions associated with sepsis-driven proinflammatory responses. This study suggests that [64Cu]Cu-pHLIC is a valuable tool to noninvasively assess acidosis associated with both central and peripheral innate immune activation.
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Affiliation(s)
- Kelly E Henry
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Aisling M Chaney
- Department of Radiology, Stanford University, Stanford, California
| | - Veronica L Nagle
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York.,Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, New York.,Departments of Pharmacology and Radiology, Weill Cornell Medical College, New York, New York
| | - Haley C Cropper
- Department of Radiology, Stanford University, Stanford, California
| | - Saghar Mozaffari
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, California
| | - Gregory Slaybaugh
- Department of Physics, University of Rhode Island, Kingston, Rhode Island
| | - Keykavous Parang
- Center for Targeted Drug Delivery, Department of Biomedical and Pharmaceutical Sciences, Chapman University School of Pharmacy, Irvine, California
| | - Oleg A Andreev
- Department of Physics, University of Rhode Island, Kingston, Rhode Island
| | - Yana K Reshetnyak
- Department of Physics, University of Rhode Island, Kingston, Rhode Island
| | - Michelle L James
- Department of Radiology, Stanford University, Stanford, California.,Department of Neurology and Neurological Science, Stanford University, Stanford, California; and
| | - Jason S Lewis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York .,Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, New York.,Departments of Pharmacology and Radiology, Weill Cornell Medical College, New York, New York.,Radiochemistry and Molecular Imaging Probes Core, Memorial Sloan Kettering Cancer Center, New York, New York
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Riemann A, Reime S, Gießelmann M, Thews O. Extracellular Acidosis Regulates the Expression of Inflammatory Mediators in Rat Epithelial Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1232:277-282. [DOI: 10.1007/978-3-030-34461-0_35] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Zhang Y, Qian X, Yang X, Niu R, Song S, Zhu F, Zhu C, Peng X, Chen F. ASIC1a induces synovial inflammation via the Ca 2+/NFATc3/ RANTES pathway. Theranostics 2020; 10:247-264. [PMID: 31903118 PMCID: PMC6929608 DOI: 10.7150/thno.37200] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022] Open
Abstract
Rationale: Synovial inflammation is one of the main pathological features of rheumatoid arthritis (RA) and is a key factor leading to the progression of RA. Understanding the regulatory mechanism of synovial inflammation is crucial for the treatment of RA. Acid-sensing ion channel 1a (ASIC1a) is an H+-gated cation channel that promotes the progression of RA, but the role of ASIC1a in synovial inflammation is unclear. This study aimed to investigate whether ASIC1a is involved in the synovial inflammation and explore the underlying mechanisms in vitro and in vivo. Methods: The expression of ASIC1a and nuclear factor of activated T cells (NFATs) were analyzed by Western blotting, immunofluorescence, and immunohistochemistry both in vitro and in vivo. The Ca2+ influx mediated by ASIC1a was detected by calcium imaging and flow cytometry. The role of ASIC1a in inflammation was studied in rats with adjuvant-induced arthritis (AA). Inflammatory cytokine profile was analyzed by protein chip in RA synovial fibroblasts (RASF) and verified by a magnetic multi-cytokine assay and ELISA. The NFATc3-regulated RANTES (Regulated upon activation, normal T cell expressed and secreted) gene transcription was investigated by ChIP-qPCR and dual-luciferase reporter assay. Results: The expression of ASIC1a was significantly increased in human RA synovial tissues and primary human RASF as well as in ankle synovium of AA rats. Activated ASIC1a mediated Ca2+ influx to increase [Ca2+]i in RASF. The activation/overexpression of ASIC1a in RASF up-regulated the expression of inflammatory cytokines RANTES, sTNF RI, MIP-1a, IL-8, sTNF RII, and ICAM-1 among which RANTES was increased most remarkably. In vivo, ASIC1a promoted inflammation, synovial hyperplasia, articular cartilage, and bone destruction, leading to the progression of AA. Furthermore, activation of ASIC1a upregulated the nuclear translocation of NFATc3, which bound to RANTES promoter and directly regulated gene transcription to enhance RANTES expression. Conclusion: ASIC1a induces synovial inflammation, which leads to the progression of RA. Our study reveals a novel RA inflammation regulatory mechanism and indicates that ASIC1a might be a potential therapeutic target for RA.
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Affiliation(s)
- Yihao Zhang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Xuewen Qian
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Xiaojuan Yang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Ruowen Niu
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Sujing Song
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Fei Zhu
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Chuanjun Zhu
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Xiaoqing Peng
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
| | - Feihu Chen
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, Hefei 230032, China
- The Key Laboratory of Anti-inflammatory and Immune Medicine, Anhui Medical University, Ministry of Education, Hefei 230032, China
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Molinari E, Giuliani T, Andrianello S, Talamini A, Tollini F, Tedesco P, Pirani P, Panzeri F, Sandrini R, Remo A, Laterza E. Drain fluid's pH predicts anastomotic leak in colorectal surgery: results of a prospective analysis of 173 patients. MINERVA CHIR 2019; 75:30-36. [PMID: 31580043 DOI: 10.23736/s0026-4733.19.08018-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The early risk assessment of anastomotic leak (AL) after colorectal surgery is crucial. Several markers have been proposed, including peritoneal fluid's pH. Aim of the present study is to evaluate the role of drain fluid pH as predictor of AL. METHODS All patients undergoing colorectal surgery from January 2015 to December 2017 were considered eligible. Hartmann procedures, procedures including temporary ileostomy and emergency surgery were excluded. Drain fluid was submitted for pH and chemical-physical assessment on postoperative day 1 (POD1) and postoperative day 3 (POD3). RESULTS Out of 173 patients, those who developed AL showed a lower drain fluid's pH on POD1 and on POD3 compared to patients who did not (P<0.05). The plotted ROC curves identified 7.53 as pH cut-off on POD1 (AUC 0.80) and 7.21 on POD3 (AUC 0.86). With both the cut-offs, pH was an independent predictor of AL at multivariable analysis (P<0.001). pH<7.53 on POD1 and pH<7.21 on POD3 showed 93.75% sensitivity and 97% specificity respectively. CONCLUSIONS Drain fluid's pH on POD1 is useful to select patients who will not develop AL while on POD3 it might identify those requiring a more careful management.
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Affiliation(s)
- Enrico Molinari
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Tommaso Giuliani
- Department of General and Pancreatic Surgery, University of Verona Hospital Trust, Verona, Italy -
| | - Stefano Andrianello
- Department of General and Pancreatic Surgery, University of Verona Hospital Trust, Verona, Italy
| | - Alberto Talamini
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Filippo Tollini
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Pietro Tedesco
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Paola Pirani
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Francesca Panzeri
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Roberto Sandrini
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Andrea Remo
- Department of Pathology, ULLS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
| | - Ernesto Laterza
- Department of General Surgery, ULSS9 Scaligera, Mater Salutis Hospital, Legnago, Verona, Italy
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Rahim TNAT, Abdullah AM, Md Akil H. Recent Developments in Fused Deposition Modeling-Based 3D Printing of Polymers and Their Composites. POLYM REV 2019. [DOI: 10.1080/15583724.2019.1597883] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tuan Noraihan Azila Tuan Rahim
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Abdul Manaf Abdullah
- School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Hazizan Md Akil
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Pulau Pinang, Malaysia
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Extracellular Acidosis Modulates the Expression of Epithelial-Mesenchymal Transition (EMT) Markers and Adhesion of Epithelial and Tumor Cells. Neoplasia 2019; 21:450-458. [PMID: 30953950 PMCID: PMC6447725 DOI: 10.1016/j.neo.2019.03.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 03/04/2019] [Accepted: 03/07/2019] [Indexed: 12/12/2022] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is an important process of tumor progression associated with increased metastatic potential. EMT can be activated by external triggers such as cytokines or metabolic parameters (e.g. hypoxia). Since extracellular acidosis is a common finding in tumors, the aim of the study is to analyze its impact on the expression of EMT markers in vitro and in vivo as well as the functional impact on cell adhesion. Therefore, three tumor and two normal epithelial cell lines were incubated for 24 h at pH 6.6 and the expression of EMT markers was studied. In addition, mRNA expression of transcription and metabolic factors related to EMT was measured as well as the functional impact on cell adhesion, either during acidic incubation or after priming cells in an acidic milieu. E-cadherin and N-cadherin were down-regulated in all tumor and normal cell lines studied, whereas vimentin expression increased in only two tumor and one normal cell line. Down-regulation of the cadherins was seen in total protein and to a lesser extent in surface protein. In vivo an increase in N-cadherin and vimentin expression was found. Acidosis up-regulated Twist1 and Acsl1 but down-regulated fumarate hydratase (Fh). Cell adhesion during acidic incubation decreased in AT1 prostate carcinoma cells whereas preceding acidic priming increased their subsequent adhesion. Low tumor pH is able to modulate the expression EMT-related proteins and by this may affect the stability of the tissue structure.
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Riemann A, Reime S, Thews O. Acidic extracellular environment affects miRNA expression in tumorsin vitroandin vivo. Int J Cancer 2018; 144:1609-1618. [DOI: 10.1002/ijc.31790] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 07/13/2018] [Accepted: 07/23/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Anne Riemann
- Institute of PhysiologyUniversity Halle Halle (Saale) Germany
| | - Sarah Reime
- Institute of PhysiologyUniversity Halle Halle (Saale) Germany
| | - Oliver Thews
- Institute of PhysiologyUniversity Halle Halle (Saale) Germany
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Cao L, Cao X, Zhou Y, Nagpure BV, Wu ZY, Hu LF, Yang Y, Sethi G, Moore PK, Bian JS. Hydrogen sulfide inhibits ATP-induced neuroinflammation and Aβ 1-42 synthesis by suppressing the activation of STAT3 and cathepsin S. Brain Behav Immun 2018; 73:603-614. [PMID: 29981830 DOI: 10.1016/j.bbi.2018.07.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 05/24/2018] [Accepted: 07/04/2018] [Indexed: 02/02/2023] Open
Abstract
Neuroinflammation and excessive β-amyloid1-42 (Aβ1-42) generation contribute to the pathogenesis of Alzheimer's disease (AD). Emerging evidence has demonstrated that hydrogen sulfide (H2S), an endogenous gasotransmitter, produces therapeutic effects in AD; however, the underlying mechanisms remain largely elusive. In the present study, we investigated the effects of H2S on exogenous ATP-induced inflammation and Aβ1-42 production in both BV-2 and primary cultured microglial cells and analyzed the potential mechanism(s) mediating these effects. Our results showed that NaHS, an H2S donor, inhibited exogenous ATP-stimulated inflammatory responses as manifested by the reduction of pro-inflammatory cytokines, ROS and activation of nuclear factor-κB (NF-κB) pathway. Furthermore, NaHS also suppressed the enhanced production of Aβ1-42 induced by exogenous ATP, which is probably due to its inhibitory effect on exogenous ATP-boosted expression of amyloid precursor protein (APP) and activation of β- and γ-secretase enzymes. Thereafter, we found that exogenous ATP-induced inflammation and Aβ1-42 production requires the activation of signal transducer and activator of transcription 3 (STAT3) and cathepsin S (Cat S) as inhibition of the activity of either proteins attenuated the effect of exogenous ATP. Intriguingly, NaHS suppressed exogenous ATP-induced phosphorylation of STAT3 and the activation of Cat S. In addition, we observed that NaHS led to the persulfidation of Cat S at cysteine-25. Importantly, mutation of cysteine-25 into serine attenuated the activity of Cat S stimulated by exogenous ATP and subsequent inflammation and Aβ1-42 production, indicating its involvement in H2S-mediated effect. Taken together, our data provide a novel understanding of H2S-mediated effect on neuroinflammation and Aβ1-42 production by suppressing the activation of STAT3 and Cat S.
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Affiliation(s)
- Lei Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Xu Cao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Yebo Zhou
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Bhushan Vijay Nagpure
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Zhi-Yuan Wu
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; Life Science Institute, National University of Singapore, Singapore
| | - Li Fang Hu
- Institute of Neuroscience, Soochow University, Suzhou 215123, China
| | - Yong Yang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease, Center for New Drug Safety Evaluation and Research, China Pharmaceutical University, Nanjing, China
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Philp K Moore
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore; Life Science Institute, National University of Singapore, Singapore
| | - Jin-Song Bian
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore.
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El Ichi-Ribault S, Alcaraz JP, Boucher F, Boutaud B, Dalmolin R, Boutonnat J, Cinquin P, Zebda A, Martin DK. Remote wireless control of an enzymatic biofuel cell implanted in a rabbit for 2 months. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.156] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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