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Sun M, Wang J, Huang X, Hang R, Han P, Guo J, Yao X, Chu PK, Zhang X. Ultrasound-driven radical chain reaction and immunoregulation of piezoelectric-based hybrid coating for treating implant infection. Biomaterials 2024; 307:122532. [PMID: 38493670 DOI: 10.1016/j.biomaterials.2024.122532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/01/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
The poor efficiency of US-responsive coatings on implants restricts their practical application. Immunotherapy that stimulates immune cells to enhance their antibacterial activity is expected to synergize with sonodynamic therapy for treating implant infection effectively and safely. Herein, US-responsive hybrid coatings composed of the oxygen-deficient BaTiO3 nanorod arrays and l-arginine (BaTiO3-x/LA) are designed and prepared on titanium implants for sonocatalytic therapy-cooperated immunotherapy to treat Methicillin-resistant Staphylococcus aureus (MRSA) infection. BaTiO3-x/LA can generate more oxidizing reactive oxygen species (ROS, hydroxyl radical (·OH)) and reactive nitrogen species (RNS, peroxynitrite anion (ONOO-)). The construction of nanorod arrays and oxygen defects balances the piezoelectric properties and sonocatalytic capability during US treatment. The generated piezoelectric electric field provides a sufficient driving force to separate electrons and holes, and the oxygen defects attenuate the electron-hole recombination efficiency, consequently increasing the yield of ROS during the US treatment. Moreover, nitric oxide (NO) released by l-arginine reacts with the superoxide radical (·O2-) to produce ONOO-. Since, this radical chain reaction improves the oxidizing ability between bacteria and radicals, the cell membrane (argB, secA2) and DNA (dnaBGXN) are destroyed. The bacterial self-repair mechanism indirectly accelerates bacterial death based on the transcriptome analysis. In addition to participating in the radical chain reaction, NO positively affects macrophage M1 polarization to yield potent phagocytosis to MRSA. As a result, without introducing an extra sonosensitizer, BaTiO3-x/LA exhibits excellent antibacterial activity against MRSA after the US treatment for 15 min. Furthermore, BaTiO3-x/LA facilitates macrophage M2 polarization after implantation and improves osteogenic differentiation. The combined effects of sonodynamic therapy and immunoregulation lead to an effective and safe treatment method for implant-associated infections.
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Affiliation(s)
- Menglin Sun
- Shanxi Key Laboratory of Biomedical Metal Materials, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Jiameng Wang
- Shanxi Key Laboratory of Biomedical Metal Materials, Taiyuan University of Technology, Taiyuan, 030024, China; College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xiaobo Huang
- Shanxi Key Laboratory of Biomedical Metal Materials, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Ruiqiang Hang
- Shanxi Key Laboratory of Biomedical Metal Materials, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Peide Han
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Jiqiang Guo
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, China
| | - Xiaohong Yao
- Shanxi Key Laboratory of Biomedical Metal Materials, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Hong Kong, Kowloon, China.
| | - Xiangyu Zhang
- Shanxi Key Laboratory of Biomedical Metal Materials, Taiyuan University of Technology, Taiyuan, 030024, China; College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
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He JB, Zhang H, Zheng HX, Jia JX, Zhang YC, Yan XS, Li XX, Wei KW, Mao J, Chen H, Li J, Wang H, Zhang M, Zhao ZY. Effects of schisandrin B on hypoxia-related cognitive function and protein expression in vascular dementia rats. J Toxicol Environ Health A 2024; 87:421-427. [PMID: 38551405 DOI: 10.1080/15287394.2024.2334247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Vascular dementia (VD) a heterogenous group of brain disorders in which cognitive impairment is attributable to vascular risk factors and cerebrovascular disease. A common phenomenon in VD is a dysfunctional cerebral regulatory mechanism associated with insufficient cerebral blood flow, ischemia and hypoxia. Under hypoxic conditions oxygen supply to the brain results in neuronal death leading to neurodegenerative diseases including Alzheimer's (AD) and VD. In conditions of hypoxia and low oxygen perfusion, expression of hypoxia-inducible factor 1 alpha (HIF-1α) increases under conditions of low oxygen and low perfusion associated with upregulation of expression of hypoxia-upregulated mitochondrial movement regulator (HUMMR), which promotes anterograde mitochondrial transport by binding with trafficking protein kinesin 2 (TRAK2). Schisandrin B (Sch B) an active component derived from Chinese herb Wuweizi prevented β-amyloid protein induced morphological alterations and cell death using a SH-SY5Y neuronal cells considered an AD model. It was thus of interest to determine whether Sch B might also alleviate VD using a rat bilateral common carotid artery occlusion (BCAO) dementia model. The aim of this study was to examine the effects of Sch B in BCAO on cognitive functions such as Morris water maze test and underlying mechanisms involving expression of HIF-1α, TRAK2, and HUMMR levels. The results showed that Sch B improved learning and memory function of rats with VD and exerted a protective effect on the hippocampus by inhibition of protein expression of HIF-1α, TRAK2, and HUMMR factors. Evidence indicates that Sch B may be considered as an alternative in VD treatment.
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Affiliation(s)
- Jing-Bo He
- Department of Pharmacy, Baotou Medical College, Inner Mongolia, China
| | - He Zhang
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Hong-Xia Zheng
- Faculty of Foreign Languages, Baotou Teachers' College, Inner Mongolia, China
| | - Jian-Xin Jia
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Yi-Chi Zhang
- Class15, Senior two, Baotou No.9 High School, Inner Mongolia, China
| | - Xu-Sheng Yan
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Xiao-Xu Li
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Kai-Wen Wei
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Jun Mao
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Hong Chen
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Jing Li
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
- Department of Anesthesia, The Fourth Hospital of Inner Mongolia Autonomous Region, Inner Mongolia, China
| | - He Wang
- School of Health Sciences, University of Newcastle, Newcastle, Australia
| | - Ming Zhang
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
| | - Zhi-Ying Zhao
- Institute of Neuroscience, Department of Anatomy, Baotou Medical College, Inner Mongolia, China
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Sun Y, Jin H, He J, Lai J, Lin H, Liu X. Melatonin alleviates ischemic stroke by inhibiting ferroptosis through the CYP1B1/ACSL4 pathway. Environ Toxicol 2024; 39:2623-2633. [PMID: 38205686 DOI: 10.1002/tox.24136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/17/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024]
Abstract
This study utilized middle cerebral artery occlusion (MCAO) mouse models and HT-22 cell oxygen and glucose deprivation/reoxygenation (OGD/R) models to investigate the therapeutic effects of melatonin on ischemic brain injury. In the experiments, MCAO mice were treated with 5 and 10 mg/kg doses of melatonin, and H-T22 cells underwent OGD/R treatment and were administered different concentrations of melatonin. The results showed that melatonin significantly reduced ischemic brain area, neural damage, cerebral edema, and neuronal apoptosis in MCAO mice. In the HT-22 cell model, melatonin also improved cell proliferation ability, reduced apoptosis, and ROS production. Further mechanistic studies found that melatonin exerts protective effects by inhibiting ferroptosis, an iron-dependent form of regulated cell death, through regulation of the ACSL4/CYP1B1 pathway. In MCAO mice, melatonin decreased lipid peroxidation, ROS production, and ACSL4 protein expression. Overexpression of CYP1B1 increased ACSL4 ubiquitination and degradation, thereby increasing cell tolerance to ferroptosis, reducing ACSL4 protein levels, and decreasing ROS production. CYP1B1 knockdown obtained opposite results. The CYP1B1 metabolite 20-HETE induces expression of the E3 ubiquitin ligase FBXO10 by activating PKC signaling, which promotes ACSL4 degradation. In the OGD/R cell model, inhibition of CYP1B1 expression reversed the therapeutic effects of melatonin. In summary, this study demonstrates that melatonin protects the brain from ischemic injury by inhibiting ferroptosis through regulation of the ACSL4/CYP1B1 pathway, providing evidence for new therapeutic targets for ischemic brain injury.
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Affiliation(s)
- Yu Sun
- Department of Neurology, The Third People's Hospital of Longgang Shenzhen, Shenzhen, China
| | - Haiyan Jin
- Department of Neurology, The Third People's Hospital of Longgang Shenzhen, Shenzhen, China
| | - Jia He
- Department of Neurology, The Third People's Hospital of Longgang Shenzhen, Shenzhen, China
| | - Jinyu Lai
- Department of Neurology, The Third People's Hospital of Longgang Shenzhen, Shenzhen, China
| | - Hao Lin
- Department of Neurology, The Third People's Hospital of Longgang Shenzhen, Shenzhen, China
| | - Xiangyu Liu
- Department of Neurology, The Third People's Hospital of Longgang Shenzhen, Shenzhen, China
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Li S, Zhang H, Bao Y, Zhang H, Wang J, Liu M, Yan R, Wang Z, Wu X, Jin Y. Immunoantitumor Activity and Oxygenation Effect Based on Iron-Copper-Doped Folic Acid Carbon Dots. ACS Appl Mater Interfaces 2024; 16:16653-16668. [PMID: 38520338 DOI: 10.1021/acsami.3c18331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
Abstract
Cancer metastasis and recurrence are closely associated with immunosuppression and a hypoxic tumor microenvironment. Chemodynamic therapy (CDT) and photothermodynamic therapy (PTT) have been shown to induce immunogenic cell death (ICD), effectively inhibiting cancer metastasis and recurrence when combined with immune adjuvants. However, the limited efficacy of Fenton's reaction and suboptimal photothermal effect present significant challenges for successfully inducing ICD through CDT and PTT. This paper described the synthesis and immunoantitumor activity of the novel iron-copper-doped folic acid carbon dots (CFCFB). Copper-doped folic acid carbon dots (Cu-FACDs) were initially synthesized via a hydrothermal method, using folic acid and copper gluconate as precursors. Subsequently, the nanoparticles CFCFB were obtained through cross-linking and self-assembly of Cu-FACDs with ferrocene dicarboxylic acid (FeDA) and 3-bromopyruvic acid (3BP). The catalytic effect of carbon dots in CFCFB enhanced the activity of the Fenton reaction, thereby promoting CDT-induced ICD and increasing the intracellular oxygen concentration. Additionally, 3BP inhibited cellular respiration, further amplifying the oxygen concentration. The photothermal conversion efficiency of CFCFB reached 55.8%, which significantly enhanced its antitumor efficacy through photothermal therapy. Immunofluorescence assay revealed that treatment with CFCFB led to an increased expression of ICD markers, including calreticulin (CRT) and ATP, as well as extracellular release of HMGB-1, indicating the induction of ICD by CFCFB. Moreover, the observed downregulation of ARG1 expression indicates a transition in the tumor microenvironment from an immunosuppressive state to an antitumor state following treatment with CFCFB. The upregulation of IL-2 and CD8 expression facilitated the differentiation of effector T cells, resulting in an augmented population of CD8+ T cells, thereby indicating the activation of systemic immune response.
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Affiliation(s)
- Siqi Li
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Hui Zhang
- College of Public Health, Mudanjiang Medical University, Mudanjiang 157011, China
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China
| | - Yujun Bao
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China
| | - Huanli Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Jingchun Wang
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China
- Department of Biochemistry and Molecular Biology, Qiqihar Medical University, Qiqihar 161006, China
| | - Mingyang Liu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Rui Yan
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Zhiqiang Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Xiaodan Wu
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
| | - Yingxue Jin
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry & Chemical Engineering, Harbin Normal University, Harbin 150025, China
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China
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Wang Y, Zhao LM, Feng N, Zheng D, Shen XF, Zhou H, Jiang W, Du Y, Zhao H, Lu X, Deng P. Plant growth regulators mitigate oxidative damage to rice seedling roots by NaCl stress. PeerJ 2024; 12:e17068. [PMID: 38495756 PMCID: PMC10944629 DOI: 10.7717/peerj.17068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/18/2024] [Indexed: 03/19/2024] Open
Abstract
The aim of this experiment was to investigate the effects of exogenous sprays of 5-aminolevulinic acid (5-ALA) and 2-Diethylaminoethyl hexanoate (DTA-6) on the growth and salt tolerance of rice (Oryza sativa L.) seedlings. This study was conducted in a solar greenhouse at Guangdong Ocean University, where 'Huanghuazhan' was selected as the test material, and 40 mg/L 5-ALA and 30 mg/L DTA-6 were applied as foliar sprays at the three-leaf-one-heart stage of rice, followed by treatment with 0.3% NaCl (W/W) 24 h later. A total of six treatments were set up as follows: (1) CK: control, (2) A: 40 mg⋅ L-1 5-ALA, (3) D: 30 mg⋅ L-1 DTA-6, (4) S: 0.3% NaCl, (5) AS: 40 mg⋅ L-1 5-ALA + 0.3% NaCl, and (6) DS: 30 mg⋅ L-1 DTA-6+0.3% NaCl. Samples were taken at 1, 4, 7, 10, and 13 d after NaCl treatment to determine the morphology and physiological and biochemical indices of rice roots. The results showed that NaCl stress significantly inhibited rice growth; disrupted the antioxidant system; increased the rates of malondialdehyde, hydrogen peroxide, and superoxide anion production; and affected the content of related hormones. Malondialdehyde content, hydrogen peroxide content, and superoxide anion production rate significantly increased from 12.57% to 21.82%, 18.12% to 63.10%, and 7.17% to 56.20%, respectively, in the S treatment group compared to the CK group. Under salt stress, foliar sprays of both 5-ALA and DTA-6 increased antioxidant enzyme activities and osmoregulatory substance content; expanded non-enzymatic antioxidant AsA and GSH content; reduced reactive oxygen species (ROS) accumulation; lowered malondialdehyde content; increased endogenous hormones GA3, JA, IAA, SA, and ZR content; and lowered ABA content in the rice root system. The MDA, H2O2, and O2- contents were reduced from 35.64% to 56.92%, 22.30% to 53.47%, and 7.06% to 20.01%, respectively, in the AS treatment group compared with the S treatment group. In the DS treatment group, the MDA, H2O2, and O2- contents were reduced from 24.60% to 51.09%, 12.14% to 59.05%, and 12.70% to 45.20%. In summary, NaCl stress exerted an inhibitory effect on the rice root system, both foliar sprays of 5-ALA and DTA-6 alleviated damage from NaCl stress on the rice root system, and the effect of 5-ALA was better than that of DTA-6.
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Affiliation(s)
- Yaxin Wang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Li-ming Zhao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Naijie Feng
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
- National Saline-tolerant Rice Technology Innovation Center, South China, Zhanjiang, Guangdong, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, Guangdong, China
| | - Dianfeng Zheng
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
- National Saline-tolerant Rice Technology Innovation Center, South China, Zhanjiang, Guangdong, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, Guangdong, China
| | - Xue Feng Shen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
- National Saline-tolerant Rice Technology Innovation Center, South China, Zhanjiang, Guangdong, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, Guangdong, China
| | - Hang Zhou
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
- National Saline-tolerant Rice Technology Innovation Center, South China, Zhanjiang, Guangdong, China
| | - Wenxin Jiang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Youwei Du
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Huimin Zhao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Xutong Lu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
| | - Peng Deng
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, China
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Schickle K, Gołda-Cępa M, Vuslat-Parlak Z, Grigorev N, Desante G, Chlanda A, Mazuryk O, Neuhaus K, Schmidt C, Amousa N, Drożdż K, Neuss S, Pajerski W, Esteves-Oliveira M, Brzychczy-Włoch M, Kotarba A, Gonzalez-Julian J. Revealing bactericidal events on graphene oxide nano films deposited on metal implant surfaces. J Mater Chem B 2024; 12:2494-2504. [PMID: 38170794 DOI: 10.1039/d3tb01854g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
At the time when pathogens are developing robust resistance to antibiotics, the demand for implant surfaces with microbe-killing capabilities has significantly risen. To achieve this goal, profound understanding of the underlying mechanisms is crucial. Our study demonstrates that graphene oxide (GO) nano films deposited on stainless steel (SS316L) exhibit superior antibacterial features. The physicochemical properties of GO itself play a pivotal role in influencing biological events and their diversity may account for the contradictory results reported elsewhere. However, essential properties of GO coatings, such as oxygen content and the resulting electrical conductivity, have been overlooked so far. We hypothesize that the surface potential and electrical resistance of the oxygen content in the GO-nano films may induce bacteria-killing events on conductive metallic substrates. In our study, the GO applied contains 52 wt% of oxygen, and thus exhibits insulating properties. When deposited as a nano film on an electrically conducting steel substrate, GO flakes generate a Schottky barrier at the interface. This barrier, consequently, impedes the transfer of electrons to the underlying conductive substrate. As a result, this creates reactive oxygen species (ROS), leading to bacterial death. We confirmed the presence of GO coatings and their hydrolytic stability by using X-ray photoelectron spectroscopy (XPS), μRaman spectroscopy, scanning electron microscopy (SEM), and Kelvin probe force microscopy (KPFM) measurements. The biological evaluation was performed on the MG63 osteoblast-like cell line and two selected bacteria species: S. aureus and P. aeruginosa, demonstrating both the cytocompatibility and antibacterial behavior of GO-coated SS316L substrates. We propose a two-step bactericidal mechanism: electron transfer from the bacteria membrane to the substrate, followed by ROS generation. This mechanism finds support in changes observed in contact angle, surface potential, and work function, identified as decisive factors. By addressing overlooked factors and effectively bridging the gap between understanding and practicality, we present a transformative approach for implant surfaces, combating microbial resistance, and offering new application possibilitie.
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Affiliation(s)
- Karolina Schickle
- Department of Restorative Dentistry and Endodontology, Justus-Liebig-University Giessen, Germany.
- Institute of Mineral Engineering, RWTH Aachen University, Aachen, Germany
| | | | | | - Nikita Grigorev
- Institute of Mineral Engineering, RWTH Aachen University, Aachen, Germany
| | - Gaelle Desante
- Institute of Mineral Engineering, RWTH Aachen University, Aachen, Germany
| | - Adrian Chlanda
- Łukasiewicz Research Network - Institute of Microelectronics and Photonics, Flake Graphene Research Group, Warsaw, Poland
| | - Olga Mazuryk
- Faculty of Chemistry, Jagiellonian University in Krakow, Poland.
| | - Kerstin Neuhaus
- Institute of Energy and Climate Research (IEK-12): Helmholtz-Institute Münster, Forschungszentrum Jülich GmbH, Münster, Germany
| | - Christina Schmidt
- Institute of Energy and Climate Research (IEK-12): Helmholtz-Institute Münster, Forschungszentrum Jülich GmbH, Münster, Germany
| | - Nima Amousa
- Institute of Mineral Engineering, RWTH Aachen University, Aachen, Germany
| | - Kamil Drożdż
- Department of Molecular Medical Microbiology, Chair of Microbiology Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Sabine Neuss
- Helmholtz Institute for Biomedical Engineering, Biointerface Group, Universtiy Clinics RWTH Aachen, Germany
- Institute of Pathology, University Clinics RWTH, Aachen, Germany
| | | | - Marcella Esteves-Oliveira
- Department of Restorative Dentistry and Endodontology, Justus-Liebig-University Giessen, Germany.
- Department of Conservative Dentistry, Periodontology and Endodontology, University Centre of Dentistry, Oral Medicine and Maxillofacial Surgery, University Hospital Tübingen, Tübingen, Germany
| | - Monika Brzychczy-Włoch
- Department of Molecular Medical Microbiology, Chair of Microbiology Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Andrzej Kotarba
- Faculty of Chemistry, Jagiellonian University in Krakow, Poland.
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Jiang F, Wang J, Ren Z, Hu Y, Wang B, Li M, Yu J, Tang J, Guo G, Cheng Y, Han P, Shen H. Targeted Light-Induced Immunomodulatory Strategy for Implant-Associated Infections via Reversing Biofilm-Mediated Immunosuppression. ACS Nano 2024; 18:6990-7010. [PMID: 38385433 DOI: 10.1021/acsnano.3c10172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The clinical treatment efficacy for implant-associated infections (IAIs), particularly those caused by Methicillin-resistant Staphylococcus aureus (MRSA), remains unsatisfactory, primarily due to the formation of biofilm barriers and the resulting immunosuppressive microenvironment, leading to the chronicity and recurrence of IAIs. To address this challenge, we propose a light-induced immune enhancement strategy, synthesizing BSA@MnO2@Ce6@Van (BMCV). The BMCV exhibits precise targeting and adhesion to the S. aureus biofilm-infected region, coupled with its capacity to catalyze oxygen generation from H2O2 in the hypoxic and acidic biofilm microenvironment (BME), promoting oxygen-dependent photodynamic therapy efficacy while ensuring continuous release of manganese ions. Notably, targeted BMCV can penetrate biofilms, producing ROS that degrade extracellular DNA, disrupting the biofilm structure and impairing its barrier function, making it vulnerable to infiltration and elimination by the immune system. Furthermore, light-induced reactive oxygen species (ROS) around the biofilm can lyse S. aureus, triggering bacterium-like immunogenic cell death (ICD), releasing abundant immune costimulatory factors, facilitating the recognition and maturation of antigen-presenting cells (APCs), and activating adaptive immunity. Additionally, manganese ions in the BME act as immunoadjuvants, further amplifying macrophage-mediated innate and adaptive immune responses and reversing the immunologically cold BME to an immunologically hot BME. We prove that our synthesized BMCV elicits a robust adaptive immune response in vivo, effectively clearing primary IAIs and inducing long-term immune memory to prevent recurrence. Our study introduces a potent light-induced immunomodulatory nanoplatform capable of reversing the biofilm-induced immunosuppressive microenvironment and disrupting biofilm-mediated protective barriers, offering a promising immunotherapeutic strategy for addressing challenging S. aureus IAIs.
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Affiliation(s)
- Feng Jiang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Jian Wang
- Department of Interventional Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Zun Ren
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yujie Hu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Boyong Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Mingzhang Li
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Jinlong Yu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Jin Tang
- Department of Clinical Laboratory, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Geyong Guo
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Yingsheng Cheng
- Department of Interventional Radiology, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
- Department of Imaging Medicine and Nuclear Medicine, Tongji Hospital, Shanghai 200065, China
| | - Pei Han
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
| | - Hao Shen
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, China
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Chen K, Xu B, Xiao X, Long L, Zhao Q, Fang Z, Tu X, Wang J, Xu J, Wang H. Involvement of CKS1B in the anti-inflammatory effects of cannabidiol in experimental stroke models. Exp Neurol 2024; 373:114654. [PMID: 38104887 DOI: 10.1016/j.expneurol.2023.114654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/16/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
We have previously demonstrated that treatment with cannabidiol (CBD) ameliorates mitochondrial dysfunction and attenuates neuronal injury in rats following cerebral ischemia. However, the role of CBD in the progression of ischemic stroke-induced inflammation and the molecules involved remain unclear. Here, we found that CBD suppressed the production of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), reduced the activation of microglia, ameliorated mitochondrial deficits, and decreased the phosphorylation of nuclear factor κ-B (NF-κB) in BV-2 cells subjected to oxygen-glucose deprivation/reoxygenation (OGD/R). Cyclin-dependent kinase regulatory subunit 1B (CKS1B) expression was decreased in BV-2 cells following OGD/R and this reduction was blocked by treatment with CBD. Knockdown of CKS1B increased the activation of microglia and enhanced the production of IL-1β and TNF-α in BV-2 cells treated with CBD. Moreover, CKS1B knockdown exacerbated mitochondrial deficits and increased NF-κB phosphorylation. CBD treatment also ameliorated brain injury, reduced neuroinflammation, and enhanced the protein levels of mitochondrial transcription factor A and CKS1B in rats following middle cerebral artery occlusion/reperfusion. These data identify CKS1B as a novel regulator of neuroinflammation; and reveals its involvement in the anti-inflammatory effects of CBD. Interventions targeting CKS1B expression are potentially promising for treating in ischemic stroke.
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Affiliation(s)
- Kechun Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Bingtian Xu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xuan Xiao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lu Long
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Qian Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zicen Fang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xingxing Tu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiakang Wang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jiangping Xu
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou 510515, China; Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou 510515, China.
| | - Haitao Wang
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism & Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China; Key Laboratory of Mental Health of the Ministry of Education, Southern Medical University, Guangzhou 510515, China; Center for Brain Science and Brain-Inspired Intelligence, Guangdong-Hong Kong-Macao Greater Bay Area, Guangzhou 510515, China.
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9
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Sadek A, Abd El Hady AM, Olfat H, Abd El Hady AA, Wafy W, Zaki M, Youness ER. Effect of ozone gas on viral kinetics and liver histopathology in hepatitis C patients. J Complement Integr Med 2024; 21:131-138. [PMID: 38190482 DOI: 10.1515/jcim-2023-0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/30/2023] [Indexed: 01/10/2024]
Abstract
OBJECTIVES We examine how well ozone/oxygen gas therapy treats chronic hepatitis C patients with varying degrees of liver fibrosis. Also to study the effect of giving multiple anti-oxidants with the ozone/oxygen gas mixture, to see if this addition would have any additive or synergistic effect. METHODS Two hundred and twenty three patients with chronic hepatitis C. Liver biopsies were carried out at after 12 weeks of administering an ozone/oxygen gas mixture. RESULTS The mean stage of fibrosis decreased from 1.98 to 1.41 and the mean grade of inflammation decreased from 10.08 to 7.94, both with a p value less than 0.001. After 12 weeks of treatment, mean PCR values increased. No single significant complication was recorded in a total of >9,000 settings of ozone therapy. CONCLUSIONS Ozone oxygen gas mixture is safe and effective in treatment of hepatic fibrosis due to chronic viral hepatitis C.
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Affiliation(s)
- Ahmed Sadek
- Departments of Hepatology & Gastroenterology, Theodor Bilharz Research Institute, Giza, Egypt
| | | | - Hammam Olfat
- Departments of Pathology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Afaf A Abd El Hady
- Departments of Clinical Chemistry, Theodor Bilharz Research Institute, Giza, Egypt
| | - Wafaa Wafy
- Departments of Public Health, Theodor Bilharz Research Institute, Giza, Egypt
| | - Moushira Zaki
- Department of Biological Anthropology, Medical Researches and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Eman R Youness
- Department of Medical Biochemistry, Medical Researches and Clinical Studies Institute, National Research Centre, Cairo, Egypt
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10
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Kong J, Ma S, Chu R, Liu J, Yu H, Mao M, Ge X, Sun Y, Wang Y. Photothermal and Photocatalytic Glycol Chitosan and Polydopamine-Grafted Oxygen Vacancy Bismuth Oxyiodide (BiO 1-x I) Nanoparticles for the Diagnosis and Targeted Therapy of Diabetic Wounds. Adv Mater 2024; 36:e2307695. [PMID: 38150667 DOI: 10.1002/adma.202307695] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/06/2023] [Indexed: 12/29/2023]
Abstract
Treatment of diabetic wounds is a significant clinical challenge due to the massive infections caused by bacteria. In this study, multifunctional glycol chitosan and polydopamine-coated BiO1-x I (GPBO) nanoparticles (NPs) with near-infrared (NIR) photothermal and photocatalytic abilities are prepared. When infection occurs, the local microenvironment becomes acidic, and the pH-switchable GPBO can target the bacteria of the wound site. The NIR-assisted GPBO treatment exhibits anti-bacterial effects with fast response, high efficiency, and long duration to Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. GPBO achieves excellent photothermal imaging and CT imaging of the mouse subcutaneous abscess model. With the assistance of NIR irradiation, the GPBO promotes the healing of the diabetic wound model with the effects of anti-bacteria, anti-inflammation, the M2 polarization promotion of macrophages, and angiogenesis. This is the first-time report of nano-sized BiO1-x I. The synthesis and selected application for the imaging and targeted therapy of diabetic wounds are presented. This study offers an example of the NP-assisted precise diagnosis and therapy of bacterial infection diseases.
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Affiliation(s)
- Jianglong Kong
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Sihan Ma
- College of Energy, Xiamen University, Xiamen City, Fujian Province, 361002, P. R. China
- Fujian Research Center for Nuclear Engineering, Xiamen City, Fujian Province, 361102, P. R. China
| | - Runxuan Chu
- National Pharmaceutical Engineering Research Center, China State Institute of Pharmaceutical Industry, Shanghai, 201203, P. R. China
| | - Jiawen Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Hongrui Yu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Meiru Mao
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Xiaohan Ge
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yuting Sun
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yi Wang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, P. R. China
- Ningbo Research Institute, Zhejiang University, Ningbo, 315100, P. R. China
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11
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Knowles HJ, Vasilyeva A, Sheth M, Pattinson O, May J, Rumney RMH, Hulley PA, Richards DB, Carugo D, Evans ND, Stride E. Use of oxygen-loaded nanobubbles to improve tissue oxygenation: Bone-relevant mechanisms of action and effects on osteoclast differentiation. Biomaterials 2024; 305:122448. [PMID: 38218121 DOI: 10.1016/j.biomaterials.2023.122448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/14/2023] [Accepted: 12/21/2023] [Indexed: 01/15/2024]
Abstract
Gas-loaded nanobubbles have potential as a method of oxygen delivery to increase tumour oxygenation and therapeutically alleviate tumour hypoxia. However, the mechanism(s) whereby oxygen-loaded nanobubbles increase tumour oxygenation are unknown; with their calculated oxygen-carrying capacity being insufficient to explain this effect. Intra-tumoural hypoxia is a prime therapeutic target, at least partly due to hypoxia-dependent stimulation of the formation and function of bone-resorbing osteoclasts which establish metastatic cells in bone. This study aims to investigate potential mechanism(s) of oxygen delivery and in particular the possible use of oxygen-loaded nanobubbles in preventing bone metastasis via effects on osteoclasts. Lecithin-based nanobubbles preferentially interacted with phagocytic cells (monocytes, osteoclasts) via a combination of lipid transfer, clathrin-dependent endocytosis and phagocytosis. This interaction caused general suppression of osteoclast differentiation via inhibition of cell fusion. Additionally, repeat exposure to oxygen-loaded nanobubbles inhibited osteoclast formation to a greater extent than nitrogen-loaded nanobubbles. This gas-dependent effect was driven by differential effects on the fusion of mononuclear precursor cells to form pre-osteoclasts, partly due to elevated potentiation of RANKL-induced ROS by nitrogen-loaded nanobubbles. Our findings suggest that oxygen-loaded nanobubbles could represent a promising therapeutic strategy for cancer therapy; reducing osteoclast formation and therefore bone metastasis via preferential interaction with monocytes/macrophages within the tumour and bone microenvironment, in addition to known effects of directly improving tumour oxygenation.
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Affiliation(s)
- Helen J Knowles
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Alexandra Vasilyeva
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK; Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Mihir Sheth
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK; Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
| | - Oliver Pattinson
- Bone and Joint Research Group, Human Development and Health, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Jonathan May
- Bone and Joint Research Group, Human Development and Health, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Robin M H Rumney
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, UK
| | - Philippa A Hulley
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Duncan B Richards
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Dario Carugo
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Nicholas D Evans
- Bone and Joint Research Group, Human Development and Health, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Eleanor Stride
- Botnar Institute for Musculoskeletal Sciences, Nuffield Department of Orthopaedics Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK; Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK.
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12
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Zhou Q, Ma J, Liu Q, Wu C, Yang Z, Yang T, Chen Q, Yue Y, Shang J. Traditional Chinese Medicine formula, Sanwujiao granule, attenuates ischemic stroke by promoting angiogenesis through early administration. J Ethnopharmacol 2024; 321:117418. [PMID: 37979814 DOI: 10.1016/j.jep.2023.117418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/24/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ischemic stroke (IS) is one of the most lethal diseases with the insufficient pharmacology therapeutic approach. Sanwujiao granule (SW) is widely used for IS in China with little known about its underlying mechanism. AIM OF THE STUDY To investigate the characteristics of therapeutic effects and potential mechanisms of SW against IS. MATERIALS AND METHODS The fingerprint of SW was applied by high-performance liquid chromatography-mass spectrometry (HPLC-MS). Three different drug treatment strategies, including prophylactic administration, early administration and delayed administration, were applied in rats' permanent middle cerebral occlusion (pMCAO) model. The Garcia neurological deficit test, adhesive removal test, rotarod test, TTC and TUNEL staining were performed to evaluate the pathological changes. The transcriptomic analysis was used to predict the potential mechanism of SW. The vascular deficiency model of Tg(kdrl:eGFP) zebrafish larvae and oxygen-glucose deprivation model on bEnd.3 cells were used to verify SW's pharmacological effect. qRT-PCR, immunofluorescent staining and Western Blot were applied to detect the expression of genes and proteins. The network pharmacology approach was applied to discover the potential bioactive compounds in SW that contribute to its pharmacological effect. RESULTS SW early and delayed administration attenuated cerebral infarction, neurological deficit and cell apoptosis. The transcriptomic analysis revealed that SW activated angiogenesis-associated biological processes specifically by early administration. CD31 immunofluorescent staining further confirmed the microvessel intensity in peri-infarct regions was significantly elevated after SW early treatment. Additionally, on the vascular deficiency model of zebrafish larvae, SW showed the angiogenesis effect. Next, the cell migration and tube formation were also observed in the bEnd.3 cells with the oxygen-glucose deprivation induced cell injury. It's worth noting that both mRNA and protein levels of angiogenesis factor, insulin-like growth factor 1, were significantly elevated in the pMCAO rats' brains treated with SW. The network pharmacology approach was applied and chasmanine, karacoline, talatisamine, etc. were probably the main active compounds of SW in IS treatment as they affected the angiogenesis-associated targets. CONCLUSIONS These results demonstrate that SW plays a critical role in anti-IS via promoting angiogenesis through early administration, indicating that SW is a candidate herbal complex for further investigation in treating IS in the clinical.
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Affiliation(s)
- Qinyang Zhou
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Ji Ma
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Qiuyan Liu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Changyue Wu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Ziwei Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Tingting Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Qimeng Chen
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Yunyun Yue
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Jing Shang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China; Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, 210009, China; NMPA Key Laboratory for Research and Evaluation of Cosmetics, National Institutes for Food and Drug Control, Beijing, 100050, China.
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13
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Bayraktar S, Üstün C, Kehr NS. Oxygen Delivery Biomaterials in Wound Healing Applications. Macromol Biosci 2024; 24:e2300363. [PMID: 38037316 DOI: 10.1002/mabi.202300363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 10/06/2023] [Indexed: 12/02/2023]
Abstract
Oxygen (O2 ) delivery biomaterials have attracted great interest in the treatment of chronic wounds due to their potential applications in local and continuous O2 generation and delivery, improving cell viability until vascularization occurs, promoting structural growth of new blood vessels, simulating collagen synthesis, killing bacteria and reducing hypoxia-induced tissue damage. Therefore, different types of O2 delivery biomaterials including thin polymer films, fibers, hydrogels, or nanocomposite hydrogels have been developed to provide controlled, sufficient and long-lasting O2 to prevent hypoxia and maintain cell viability until the engineered tissue is vascularized by the host system. These biomaterials are made by various approaches, such as encapsulating O2 releasing molecules into hydrogels, polymer microspheres and 3D printed hydrogel scaffolds and adsorbing O2 carrying reagents into polymer films of fibers. In this article, different O2 generating sources such as solid inorganic peroxides, liquid peroxides, and photosynthetic microalgae, and O2 carrying perfluorocarbons and hemoglobin are presented and the applications of O2 delivery biomaterials in promoting wound healing are discussed. Furthermore, challenges encountered and future perspectives are highlighted.
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Affiliation(s)
- Sema Bayraktar
- Department of Chemistry, Izmir Institute of Technology, Urla/Izmir, 35430, Turkey
| | - Cansu Üstün
- Department of Chemistry, Izmir Institute of Technology, Urla/Izmir, 35430, Turkey
| | - Nermin Seda Kehr
- Department of Chemistry, Izmir Institute of Technology, Urla/Izmir, 35430, Turkey
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14
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Haixia X, Peng Z, Jiezhao L, Huiling G, Xie C, Yihan W, Yanglei J, Li J, Wang C, Wenning X, Lixin Z, Liu C. 3D-Printed Magnesium Peroxide-Incorporated Scaffolds with Sustained Oxygen Release and Enhanced Photothermal Performance for Osteosarcoma Multimodal Treatments. ACS Appl Mater Interfaces 2024; 16:9626-9639. [PMID: 38372238 DOI: 10.1021/acsami.3c10807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
The hypoxic microenvironment in osteosarcoma inevitably compromises the antitumor effect and local bone defect repair, suggesting an urgent need for sustained oxygenation in the tumor. The currently reported oxygen-releasing materials have short oxygen-releasing cycles, harmful products, and limited antitumor effects simply by improving hypoxia. Therefore, the PCL/nHA/MgO2/PDA-integrated oxygen-releasing scaffold with a good photothermal therapy effect was innovatively constructed in this work to achieve tumor cell killing and bone regeneration functions simultaneously. The material distributes MgO2 powder evenly on the scaffold material through 3D printing technology and achieves the effect of continuous oxygen release (more than 3 weeks) through its slow reaction with water. The in vitro and in vivo results also indicate that the scaffold has good biocompatibility and sustained-release oxygen properties, which can effectively induce the proliferation and osteogenic differentiation of bone mesenchymal stem cells, achieving excellent bone defect repair. At the same time, in vitro cell experiments and subcutaneous tumorigenesis experiments also confirmed that local oxygen supply can promote osteosarcoma cell apoptosis, inhibit proliferation, and reduce the expression of heat shock protein 60, thereby enhancing the photothermal therapy effect of polydopamine and efficiently eliminating osteosarcoma. Taken together, this integrated functional scaffold provides a unique and efficient approach for antitumor and tumor-based bone defect repair for osteosarcoma treatment.
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Affiliation(s)
- Xu Haixia
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Ziyue Peng
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Lin Jiezhao
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Gao Huiling
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Changnan Xie
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Wang Yihan
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Jin Yanglei
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Zhejiang University, Yiwu 322000, China
| | - Jianjun Li
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Chengqiang Wang
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Xu Wenning
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Zhu Lixin
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Chun Liu
- Department of Spinal Surgery, Orthopedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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15
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Yao M, Fang C, Wang Z, Guo T, Wu D, Ma J, Wu J, Mo J. miR-328-3p targets TLR2 to ameliorate oxygen-glucose deprivation injury and neutrophil extracellular trap formation in HUVECs via inhibition of the NF-κB signaling pathway. PLoS One 2024; 19:e0299382. [PMID: 38394259 PMCID: PMC10889604 DOI: 10.1371/journal.pone.0299382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Endothelial cell injury is one of the important pathogenic mechanisms in thrombotic diseases, and also neutrophils are involved. MicroRNAs (miRNAs) have been demonstrated to act as essential players in endothelial cell injury, but the potential molecular processes are unknown. In this study, we used cellular tests to ascertain the protective effect of miR-328-3p on human umbilical vein endothelial cells (HUVECs) treated with oxygen-glucose deprivation (OGD). METHODS In our study, an OGD-induced HUVECs model was established, and we constructed lentiviral vectors to establish stable HUVECs cell lines. miR-328-3p and Toll-like receptor 2 (TLR2) interacted, as demonstrated by the dual luciferase reporter assay. We used the CCK8, LDH release, and EdU assays to evaluate the proliferative capacity of each group of cells. To investigate the expression of TLR2, p-P65 NF-κB, P65 NF-κB, NLRP3, IL-1β, and IL-18, we employed Western blot and ELISA. Following OGD, each group's cell supernatants were gathered and co-cultured with neutrophils. An immunofluorescence assay and Transwell assay have been performed to determine whether miR-328-3p/TLR2 interferes with neutrophil migration and neutrophil extracellular traps (NETs) formation. RESULTS In OGD-treated HUVECs, the expression of miR-328-3p is downregulated. miR-328-3p directly targets TLR2, inhibits the NF-κB signaling pathway, and reverses the proliferative capacity of OGD-treated HUVECs, while inhibiting neutrophil migration and neutrophil extracellular trap formation. CONCLUSIONS miR-328-3p inhibits the NF-κB signaling pathway in OGD-treated HUVECs while inhibiting neutrophil migration and NETs formation, and ameliorating endothelial cell injury, which provides new ideas for the pathogenesis of thrombotic diseases.
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Affiliation(s)
- Mengting Yao
- Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Chucun Fang
- Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Zilong Wang
- Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Tianting Guo
- Department of Orthopedics, Guangdong Provincial People’s Hospital Ganzhou Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| | - Dongwen Wu
- Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jiacheng Ma
- Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jian Wu
- Gannan Medical University, Ganzhou, Jiangxi, China
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
| | - Jianwen Mo
- Department of Orthopedic Surgery, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, China
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16
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Schaubmayr W, Hochreiter B, Hunyadi-Gulyas E, Riegler L, Schmidt K, Tiboldi A, Moser B, Klein KU, Krenn K, Scharbert G, Mohr T, Schmid JA, Spittler A, Tretter V. The Proteome of Extracellular Vesicles Released from Pulmonary Microvascular Endothelium Reveals Impact of Oxygen Conditions on Biotrauma. Int J Mol Sci 2024; 25:2415. [PMID: 38397093 PMCID: PMC10889365 DOI: 10.3390/ijms25042415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/09/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
The lung can experience different oxygen concentrations, low as in hypoxia, high as under supplemental oxygen therapy, or oscillating during intermittent hypoxia as in obstructive sleep apnea or intermittent hypoxia/hyperoxia due to cyclic atelectasis in the ventilated patient. This study aimed to characterize the oxygen-condition-specific protein composition of extracellular vesicles (EVs) released from human pulmonary microvascular endothelial cells in vitro to decipher their potential role in biotrauma using quantitative proteomics with bioinformatic evaluation, transmission electron microscopy, flow cytometry, and non-activated thromboelastometry (NATEM). The release of vesicles enriched in markers CD9/CD63/CD81 was enhanced under intermittent hypoxia, strong hyperoxia and intermittent hypoxia/hyperoxia. Particles with exposed phosphatidylserine were increased under intermittent hypoxia. A small portion of vesicles were tissue factor-positive, which was enhanced under intermittent hypoxia and intermittent hypoxia/hyperoxia. EVs from treatment with intermittent hypoxia induced a significant reduction of Clotting Time in NATEM analysis compared to EVs isolated after normoxic exposure, while after intermittent hypoxia/hyperoxia, tissue factor in EVs seems to be inactive. Gene set enrichment analysis of differentially expressed genes revealed that EVs from individual oxygen conditions potentially induce different biological processes such as an inflammatory response under strong hyperoxia and intermittent hypoxia/hyperoxia and enhancement of tumor invasiveness under intermittent hypoxia.
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Affiliation(s)
- Wolfgang Schaubmayr
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
| | - Beatrix Hochreiter
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
| | - Eva Hunyadi-Gulyas
- Laboratory of Proteomics Research, HUN-REN Biological Research Centre, 6726 Szeged, Hungary;
| | - Louise Riegler
- Department of Orthopedics and Trauma Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Katy Schmidt
- Core Facility of Cell Imaging and Ultrastructure Research, University of Vienna, 1090 Vienna, Austria
| | - Akos Tiboldi
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
| | - Bernhard Moser
- Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Klaus U. Klein
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
| | - Katharina Krenn
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
| | - Gisela Scharbert
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
| | - Thomas Mohr
- Institute of Cancer Research, Department of Medicine I, Comprehensive Cancer Center, Medical University of Vienna, 1090 Vienna, Austria
| | - Johannes A. Schmid
- Institute of Vascular Biology and Thrombosis Research, Medical University of Vienna, 1090 Vienna, Austria;
| | - Andreas Spittler
- Department of Surgery and Core Facility Flow Cytometry, Medical University of Vienna, 1090 Vienna, Austria;
| | - Verena Tretter
- Department of Anesthesia, General Intensive Care and Pain Medicine, Medical University of Vienna, 1090 Vienna, Austria (B.H.); (K.K.)
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17
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Balestra C, Baldelli S, Virgili F, Salvagno M, Mrakic-Sposta S, Fratantonio D. Pulsed Hyperoxia Acts on Plasmatic Advanced Glycation End Products and Advanced Oxidation Protein Products and Modulates Mitochondrial Biogenesis in Human Peripheral Blood Mononuclear Cells: A Pilot Study on the "Normobaric Oxygen Paradox". Int J Mol Sci 2024; 25:2394. [PMID: 38397071 PMCID: PMC10889761 DOI: 10.3390/ijms25042394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
The "normobaric oxygen paradox" (NOP) describes the response to the return to normoxia after a hyperoxic event, sensed by tissues as an oxygen shortage, up-regulating redox-sensitive transcription factors. We have previously characterized the time trend of oxygen-sensitive transcription factors in human PBMCs, in which the return to normoxia after 30% oxygen is sensed as a hypoxic trigger, characterized by hypoxia-induced factor (HIF-1) activation. On the contrary, 100% and 140% oxygen induce a shift toward an oxidative stress response, characterized by NRF2 and NF-kB activation in the first 24 h post exposure. Herein, we investigate whether this paradigm triggers Advanced Glycation End products (AGEs) and Advanced Oxidation Protein Products (AOPPs) as circulating biomarkers of oxidative stress. Secondly, we studied if mitochondrial biogenesis was involved to link the cellular response to oxidative stress in human PBMCs. Our results show that AGEs and AOPPs increase in a different manner according to oxygen dose. Mitochondrial levels of peroxiredoxin (PRX3) supported the cellular response to oxidative stress and increased at 24 h after mild hyperoxia, MH (30% O2), and high hyperoxia, HH (100% O2), while during very high hyperoxia, VHH (140% O2), the activation was significantly high only at 3 h after oxygen exposure. Mitochondrial biogenesis was activated through nuclear translocation of PGC-1α in all the experimental conditions. However, the consequent release of nuclear Mitochondrial Transcription Factor A (TFAM) was observed only after MH exposure. Conversely, HH and VHH are associated with a progressive loss of NOP response in the ability to induce TFAM expression despite a nuclear translocation of PGC-1α also occurring in these conditions. This study confirms that pulsed high oxygen treatment elicits specific cellular responses, according to its partial pressure and time of administration, and further emphasizes the importance of targeting the use of oxygen to activate specific effects on the whole organism.
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Affiliation(s)
- Costantino Balestra
- Environmental, Occupational, Aging (Integrative) Physiology Laboratory, Haute Ecole Bruxelles-Brabant (HE2B), 1160 Brussels, Belgium
- Physical Activity Teaching Unit, Motor Sciences Department, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium
- DAN Europe Research Division (Roseto-Brussels), 1160 Brussels, Belgium
- Anatomical Research and Clinical Studies, Vrije Universiteit Brussels (VUB), 1090 Brussels, Belgium
| | - Sara Baldelli
- Department of Human Sciences and Promotion of the Quality of Life, IRCCS San Raffaele Pisana, San Raffaele Roma Open University, 00163 Rome, Italy
| | - Fabio Virgili
- Interuniversitary Consortium "National Institute for Bio-Structures and Bio-Systems"-I.N.B.B., 13, 00136 Rome, Italy
| | - Michele Salvagno
- Department of Intensive Care, Hôpital Universitaire de Bruxelles (HUB), 1070 Brussels, Belgium
| | - Simona Mrakic-Sposta
- Institute of Clinical Physiology, National Research Council (CNR), 20162 Milan, Italy
| | - Deborah Fratantonio
- Department of Medicine and Surgery, LUM University, S.S. 100 Km 18, 70100 Casamassima, Italy
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18
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Konchekov EM, Gudkova VV, Burmistrov DE, Konkova AS, Zimina MA, Khatueva MD, Polyakova VA, Stepanenko AA, Pavlik TI, Borzosekov VD, Malakhov DV, Kolik LV, Gusein-zade N, Gudkov SV. Bacterial Decontamination of Water-Containing Objects Using Piezoelectric Direct Discharge Plasma and Plasma Jet. Biomolecules 2024; 14:181. [PMID: 38397418 PMCID: PMC10886754 DOI: 10.3390/biom14020181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/25/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
Cold atmospheric plasma has become a widespread tool in bacterial decontamination, harnessing reactive oxygen and nitrogen species to neutralize bacteria on surfaces and in the air. This technology is often employed in healthcare, food processing, water treatment, etc. One of the most energy-efficient and universal methods for creating cold atmospheric plasma is the initiation of a piezoelectric direct discharge. The article presents a study of the bactericidal effect of piezoelectric direct discharge plasma generated using the multifunctional source "CAPKO". This device allows for the modification of the method of plasma generation "on the fly" by replacing a unit (cap) on the working device. The results of the generation of reactive oxygen and nitrogen species in a buffer solution in the modes of direct discharge in air and a plasma jet with an argon flow are presented. The bactericidal effect of these types of plasma against the bacteria E. coli BL21 (DE3) was studied. The issues of scaling the treatment technique are considered.
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Affiliation(s)
- Evgeny M. Konchekov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Victoria V. Gudkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
- Institute of Physical Research and Technology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Aleksandra S. Konkova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Maria A. Zimina
- Institute of Physical Research and Technology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Mariam D. Khatueva
- Institute of Physical Research and Technology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Vlada A. Polyakova
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Alexandra A. Stepanenko
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia
| | - Tatyana I. Pavlik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Valentin D. Borzosekov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
- Institute of Physical Research and Technology, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Dmitry V. Malakhov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Leonid V. Kolik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Namik Gusein-zade
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (V.V.G.); (D.E.B.); (N.G.-z.); (S.V.G.)
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19
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Dave AM, Porter NA, Korade Z, Peeples ES. Effects of Neonatal Hypoxic-Ischemic Injury on Brain Sterol Synthesis and Metabolism. Neuropediatrics 2024; 55:23-31. [PMID: 37871611 DOI: 10.1055/s-0043-1776286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
BACKGROUND Neonatal hypoxic-ischemic brain injury (HIBI) results from disruptions to blood supply and oxygen in the perinatal brain. The goal of this study was to measure brain sterol metabolites and plasma oxysterols after injury in a neonatal HIBI mouse model to assess for potential therapeutic targets in the brain biochemistry as well as potential circulating diagnostic biomarkers. METHODS Postnatal day 9 CD1-IGS mouse pups were randomized to HIBI induced by carotid artery ligation followed by 30 minutes at 8% oxygen or to sham surgery and normoxia. Brain tissue was collected for sterol analysis by liquid chromatography with tandem mass spectrometry (LC-MS/MS). Plasma was collected for oxysterol analysis by LC-MS/MS. RESULTS There were minimal changes in brain sterol concentrations in the first 72 hours after HIBI. In severely injured brains, there was a significant increase in desmosterol, 7-DHC, 8-DHC, and cholesterol 24 hours after injury in the ipsilateral tissue. Lanosterol, 24-dehydrolathosterol, and 14-dehydrozymostenol decreased in plasma 24 hours after injury. Severe neonatal HIBI was associated with increased cholesterol and sterol precursors in the cortex at 24 hours after injury. CONCLUSIONS Differences in plasma oxysterols were seen at 24 hours but were not present at 30 minutes after injury, suggesting that these sterol intermediates would be of little value as early diagnostic biomarkers.
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Affiliation(s)
- Amanda M Dave
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska, United States
- Department of Pediatrics, Children's Hospital and Medical Center, Omaha, Nebraska, United States
- Child Health Research Institute, Omaha, Nebraska, United States
| | - Ned A Porter
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee, United States
| | - Zeljka Korade
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska, United States
- Child Health Research Institute, Omaha, Nebraska, United States
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska, United States
| | - Eric S Peeples
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, Nebraska, United States
- Department of Pediatrics, Children's Hospital and Medical Center, Omaha, Nebraska, United States
- Child Health Research Institute, Omaha, Nebraska, United States
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20
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Li J, Shen S, Shen H. Heat-shock protein A12A attenuates oxygen-glucose deprivation/reoxygenation-induced human brain microvascular endothelial cell dysfunction via PGC-1α/SIRT3 pathway. Drug Dev Res 2024; 85:e22130. [PMID: 37942840 DOI: 10.1002/ddr.22130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/07/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023]
Abstract
Ischemic stroke is a life-threatening brain disease with the leading cause of disability and mortality worldwide. Heat-shock protein A12A (HSPA12A) is recognized as a neuroprotective target for treating ischemic stroke; however, its regulatory mechanism has been not fully elucidated yet. Human brain microvascular endothelial cells (hBMECs) were induced by oxygen-glucose deprivation/reoxygenation (OGD/R) to mimic ischemic stroke. Gain- and loss-of-function experiments were conducted to explore the regulation of HSAPA12 and PGC-1α. Cell viability, apoptosis, and permeability were assessed by CCK-8, TUNEL, and transendothelial electrical resistance (TEER) assays, respectively. The expression of HSPA12A and corresponding proteins was measured by western blot. Cell immunofluorescence was adopted to evaluate ZO-1 expression. THP-1 cells were applied to adhere hBMECs in vitro to simulate leukocyte adhesion in the brain. HSPA12A was downregulated in OGD/R-treated hBMECs. HSPA12A overexpression significantly suppressed OGD/R-induced cell viability loss and apoptosis in hBMECs. Meanwhile, HSPA12A overexpression attenuated blood-brain barrier (BBB) integrity in OGD/R-induced hBMECs, evidenced by the restored TEER value and the upregulated ZO-1, occludin, and claudin-5. HSPA12A also restricted OGD/R-induced attachment of THP-1 cells to hBMECs, accompanied with downregulating ICAM-1 and VCAM-1. Additionally, OGD/R-caused downregulation of PGC-1α/SIRT3 in hBMECs was partly restored by HSPA12A overexpression. Furthermore, the above effects of HSPA12A on OGD/R-induced hBMECs injury were partly reversed by PGC-1α knockdown. HSPA12A plays a protective role against OGD/R-induced hBMECs injury by upregulating PGC-1α, providing a potential neuroprotective role of HSPA12A in ischemic stroke.
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Affiliation(s)
- Jun Li
- General Department, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Shouyin Shen
- General Department, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
| | - Haiyan Shen
- General Department, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China
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21
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Kim JH, Spero M, Lebig EG, Lonergan ZR, Trindade IB, Newman DK, Martins-Green M. Targeting Anaerobic Respiration in Pseudomonas aeruginosa with Chlorate Improves Healing of Chronic Wounds. Adv Wound Care (New Rochelle) 2024; 13:53-69. [PMID: 37432895 PMCID: PMC10659023 DOI: 10.1089/wound.2023.0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/08/2023] [Indexed: 07/13/2023] Open
Abstract
Objective: Pseudomonas aeruginosa is an opportunistic pathogen that can establish chronic infections and form biofilm in wounds. Because the wound environment is largely devoid of oxygen, P. aeruginosa may rely on anaerobic metabolism, such as nitrate respiration, to survive in wounds. While nitrate reductase (Nar) typically reduces nitrate to nitrite, it can also reduce chlorate to chlorite, which is a toxic oxidizing agent. Therefore, chlorate can act as a prodrug to specifically eradicate hypoxic/anoxic, nitrate-respiring P. aeruginosa populations, which are often tolerant to conventional antibiotic treatments. Approach: Using a diabetic mouse model for chronic wounds, we tested the role that anaerobic nitrate respiration plays in supporting chronic P. aeruginosa infections. Results: P. aeruginosa forms biofilm deep within the wound where the environment is anoxic. Daily treatment of P. aeruginosa-infected wounds with chlorate supported wound healing. Chlorate treatment was as effective as a treatment with ciprofloxacin (a conventional antibiotic that targets both oxic and hypoxic/anoxic P. aeruginosa populations). Chlorate-treated wounds showed markers of good-quality wound healing, including well-formed granulation tissue, reepithelialization and microvessel development. Loss- and gain-of-function experiments showed that P. aeruginosa requires nitrate respiration to establish a chronic wound infection and form biofilms. Innovation: We show that the small molecule chlorate, kills the opportunistic pathogen, P. aeruginosa, by targeting a form of anaerobic metabolism called nitrate respiration. Conclusion: Chlorate holds promise as a treatment to combat diverse bacterial infections where oxygen is limiting and/or where pathogens grow as biofilms because many other pathogens possess Nar and survive using anaerobic metabolism.
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Affiliation(s)
- Jane H. Kim
- Department of Molecular, Cell, and Systems Biology, University of California, Riverside, California, USA
| | - Melanie Spero
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Elyson Gavin Lebig
- Department of Molecular, Cell, and Systems Biology, University of California, Riverside, California, USA
| | - Zachery R. Lonergan
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Inês B. Trindade
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
| | - Dianne K. Newman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, California, USA
- Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
| | - Manuela Martins-Green
- Department of Molecular, Cell, and Systems Biology, University of California, Riverside, California, USA
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22
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Yi F, Xiao H, Song M, Huang L, Huang Q, Deng J, Yang H, Zheng L, Wang H, Gu W. BMSC-derived exosomal miR-148b-3p attenuates OGD/R-induced HMC3 cell activation by targeting DLL4 and Notch1. Neurosci Res 2024; 199:36-47. [PMID: 37741572 DOI: 10.1016/j.neures.2023.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/04/2023] [Accepted: 09/19/2023] [Indexed: 09/25/2023]
Abstract
Bone mesenchymal stem cell (BMSC)-derived exosome (BMSC-Exo) could be a treatment method for ischemic injury. In ischemic cerebrovascular disease (IC), microglia is pivotal in neuronal damage and remodeling. This study explores the mechanisms of BMSC-Exo miR-148b-3p in regulating oxygen-glucose deprivation/reoxygenation (OGD/R)-induced human microglial clone 3 (HMC3) cell activation. Transmission electron microscopy (TEM) and qNano were used to assess BMSC-Exo features. The functions of BMSC-Exo miR-148 b-3p in OGD/R-induced HMC3 cell activation were explored via MTT assay, flow cytometry, scratch, transwell, and enzyme-linked immunosorbent assay (ELISA) assays. A dual-luciferase reporter assay was performed to determine the relationship between miR-148b-3p and Delta-like ligand 4(DDL4) or neurogenic locus notch homolog protein 1 (Notch1). OGD/R decreased miR-148b-3p expression in HMC3 cells. After BMSC-Exo treatment, miR-148b-3p expression was upregulated, cell viability and migration were inhibited, cell cycles remained in the G0/G1 phase, and proinflammatory cytokines were decreased in OGD/R-induced HMC3 cells. More importantly, BMSC-Exo miR-148b-3p could further strengthen BMSC-Exo effects. DDL4 and Notch1 are direct targets of miR-148b-3p, respectively. Moreover, the knockdown of DLL4 or Notch1 could inhibit OGD/R-induced HMC3 cell activation. BMSC-Exo miR-148b-3p inhibited OGD/R-induced HMC3 cell activation via inhibiting DLL4 and Notch1 expression, which provided a new strategy for treating cerebral ischemia.
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Affiliation(s)
- Fang Yi
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Hui Xiao
- Department of Neurology, Changsha Central Hospital, Changsha 410004, Hunan, PR China
| | - Mingyu Song
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Clinical Research Center for Cerebrovascular Disease of Hunan Province, Central South University, Changsha, Hunan 410008, PR China
| | - Lei Huang
- Department of Neurological Rehabilitation, Hunan Provincial People's Hospital, The First Affiliated Hospital of Hunan Normal University, Changsha 410000, Hunan, PR China
| | - Qianyi Huang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Jun Deng
- Department of Neurology, Affiliated Hospital of Hunan Academy of Traditional Chinese Medicine, Changsha 410000, Hunan, PR China
| | - Han Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Lan Zheng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Hong Wang
- Department of Geriatric Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China
| | - Wenping Gu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, PR China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Clinical Research Center for Cerebrovascular Disease of Hunan Province, Central South University, Changsha, Hunan 410008, PR China.
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23
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Escobar AJ, Krishna S, Flowers KM, Abello A, Gershman B, Wagner AA, Chang P, Korets R, Mistretta CJ, Schreiber KL, Olumi AF, Rayala HJ. Practical Use of Self-Adjusted Nitrous Oxide During Transrectal Prostate Biopsy: A Double-Blind Randomized Controlled Trial. J Urol 2024; 211:214-222. [PMID: 37984067 DOI: 10.1097/ju.0000000000003789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023]
Abstract
PURPOSE Transrectal prostate biopsy is a common ambulatory procedure that can result in pain and anxiety for some men. Low-dose, adjustable nitrous oxide is increasingly being used to improve experience of care for patients undergoing painful procedures. This study seeks to evaluate the efficacy and safety of low-dose (<45%) nitrous oxide, which has not been previously established for transrectal prostate biopsies. MATERIALS AND METHODS A single-institution, prospective, double-blind, randomized, controlled trial was conducted on patients undergoing transrectal prostate biopsies. Patients were randomized to receive either self-adjusted nitrous oxide or oxygen, in addition to routine periprostatic bupivacaine block. Nitrous oxide at levels between 20% and 45% were adjusted to patients' desired effect. Patients completed a visual analog scale for anxiety, State Trait Anxiety Inventory, and a visual analog scale for pain immediately before and after biopsy. The blinded operating urologist evaluated ease of procedure. Periprocedural vitals and complications were assessed. Patients were allowed to drive home independently. RESULTS A total of 133 patients received either nitrous oxide (66) or oxygen (67). There was no statistically significant difference in the primary anxiety end point of State Trait Anxiety Inventory or the visual analog scale for anxiety scores between the nitrous oxide and oxygen groups. However, patients in the nitrous oxide group reported significantly lower visual analog scale for pain scores compared to the oxygen group (P = .026). The operating urologists' rating of tolerance of the procedure was better in the nitrous oxide group (P = .03). There were no differences in biopsy performance time. Complications were similarly low between the 2 groups. CONCLUSIONS Patient-adjusted nitrous oxide at levels of 20% to 45% is a safe adjunct during transrectal prostate biopsy. Although there was not an observed difference in the primary end point of anxiety, nitrous oxide was associated with lower patient-reported pain scores.
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Affiliation(s)
- Abigail J Escobar
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Suprita Krishna
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - K Mikayla Flowers
- Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Alejandro Abello
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Boris Gershman
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Andrew A Wagner
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Peter Chang
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Ruslan Korets
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | | | - Kristen L Schreiber
- Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Aria F Olumi
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - Heidi J Rayala
- Division of Urologic Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
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24
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Meng W, Ye H, Ma Z, Liu L, Zhang T, Han Q, Xiang Z, Xia Y, Ke Y, Guan X, Shi Q, Ataullakhanov FI, Panteleev M. Perfluorocarbon Nanoparticles Incorporating Ginkgolide B: Artificial O 2 Carriers with Antioxidant Activity and Antithrombotic Effect. ChemMedChem 2024; 19:e202300312. [PMID: 37970644 DOI: 10.1002/cmdc.202300312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/20/2023] [Accepted: 11/15/2023] [Indexed: 11/17/2023]
Abstract
Ischemic stroke primarily leads to insufficient oxygen delivery in ischemic area. Prompt reperfusion treatment for restoration of oxygen is clinically suggested but mediates more surging reactive oxygen species (ROS) generation and oxidative damage, known as ischemia-reperfusion injury (IRI). Therefore, the regulation of oxygen content is a critical point to prevent cerebral ischemia induced pathological responses and simultaneously alleviate IRI triggered by the sudden oxygen restoration. In this work, we constructed a perfluorocarbon (PFC)-based artificial oxygen nanocarrier (PFTBA-L@GB), using an ultrasound-assisted emulsification method, alleviates the intracerebral hypoxic state in ischemia stage and IRI after reperfusion. The high oxygen solubility of PFC allows high oxygen efficacy. Furthermore, PFC has the adhesion affinity to platelets and prevents the overactivation of platelet. The encapsulated payload, ginkgolide B (GB) exerts its anti-thrombosis by antagonism on platelet activating factor and antioxidant effect by upregulation of antioxidant molecular pathway. The versatility of the present strategy provides a practical approach to build a simple, safe, and relatively effective oxygen delivery agent to alleviate hypoxia, promote intracerebral oxygenation, anti-inflammatory, reduce intracerebral oxidative stress damage and thrombosis and caused by stroke.
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Affiliation(s)
- Wei Meng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Hongbo Ye
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Zhifang Ma
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Lei Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Tianci Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Qiaoyi Han
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Zehong Xiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yu Xia
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yue Ke
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xinghua Guan
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Qiang Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
- Key Laboratory of Polymeric Materials Design and Synthesis for Biomedical Function, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Fazly I Ataullakhanov
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- Faculty of Physics, Lomonosov Moscow State University, Leninskie Gory, 1, build. 2, GSP-1, Moscow, 119991, Russia
| | - Mikhail Panteleev
- Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
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Wang YC, Shao YD, Shao CL, Guan XQ, Lu PP, Ning K, Liu BN, Guo HD. Dihydrotanshinone I reduces H9c2 cell damage by regulating AKT and MAPK signaling pathways. In Vitro Cell Dev Biol Anim 2024; 60:89-97. [PMID: 38253954 DOI: 10.1007/s11626-023-00839-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/30/2023] [Indexed: 01/24/2024]
Abstract
Cardiovascular disease is the deadliest disease in the world. Previous studies have shown that Dihydrotanshinone I (DHT) can improve cardiac function after myocardial injury. This study aimed to observe the protective effect and mechanism of DHT on H9c2 cells by establishing an oxygen-glucose deprivation/reoxygenation (OGD/R) injury model. By constructing OGD/R injury simulation of H9c2 cells in a myocardial injury model, the proliferation of H9c2 cells treated with DHT concentrations of 0.1 μmol/L were not affected at 24, 48, and 72 h. DHT can significantly reduce the apoptosis of H9c2 cells caused by OGD/R. Compared with the OGD/R group, DHT treatment significantly reduced the level of MDA and increased the level of SOD in cells. DHT treatment of cells can significantly reduce the levels of ROS and Superoxide in mitochondria in H9c2 cells caused by OGD/R and H2O2. DHT significantly reduced the phosphorylation levels of P38MAPK and ERK in H9c2 cells induced by OGD/R, and significantly increased the phosphorylation levels of AKT in H9c2 cells. DHT can significantly reduce the oxidative stress damage of H9c2 cells caused by H2O2 and OGD/R, thereby reducing the apoptosis of H9c2 cells. And this may be related to regulating the phosphorylation levels of AKT, ERK, and P38MAPK.
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Affiliation(s)
- Ya-Chao Wang
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi-da Shao
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chang-le Shao
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao-Qi Guan
- School of Traditional Chinese Medicine & School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Ping-Ping Lu
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ke Ning
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Bao-Nian Liu
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Hai-Dong Guo
- School of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
- Academy of Integrated Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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26
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Báez F, de Brun V, Rodríguez-Osorio N, Viñoles C. Low oxygen tension during in vitro embryo production improves the yield, quality, and cryotolerance of bovine blastocysts. Anim Sci J 2024; 95:e13941. [PMID: 38549361 DOI: 10.1111/asj.13941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/05/2024] [Accepted: 02/29/2024] [Indexed: 04/02/2024]
Abstract
Mammalian oocytes undergo maturation and fertilization in the low-oxygen (O2) environment of the oviduct. To evaluate the effect of O2 tension during in vitro maturation and fertilization on embryo yield, quality, cryotolerance, and gene expression, we matured and fertilized bovine cumulus-oocyte complexes under low (5%) or high (20%) O2 tension. Presumptive zygotes from both groups were cultured at 5% O2 for 8 days. Blastocysts were vitrified, and then warmed, and cultured for further 24 h to assess their cryotolerance. Our findings indicate that low O2 during maturation and fertilization enhances embryo development and cell count in both fresh and vitrified/warmed blastocysts. In this study, the interaction of O2 tension and status (fresh or vitrified/warmed) affected the transcript abundance of SOD2, AQP3, and BAX in blastocysts. These results highlight the role of low O2 tension during bovine maturation and fertilization and provide support to using 5% O2 throughout all stages of bovine in vitro embryo production.
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Affiliation(s)
- Francisco Báez
- Instituto Superior de la Carne, CENUR Noreste, Universidad de la República (UDELAR), Tacuarembó, Uruguay
| | - Victoria de Brun
- Laboratorio de Endocrinología y Metabolismo Animal, Facultad de Veterinaria, UDELAR, Montevideo, Uruguay
| | - Nélida Rodríguez-Osorio
- Unidad de Genómica y Bioinformática, Departamento de Ciencias Biológicas, CENUR Litoral Norte, UDELAR, Salto, Uruguay
| | - Carolina Viñoles
- Centro de Salud Reproductiva de Rumiantes en Sistemas Agroforestales, CENUR Noreste, UDELAR, Cerro Largo, Uruguay
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27
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Mathis BJ, Kato H, Matsuishi Y, Hiramatsu Y. Endogenous and exogenous protection from surgically induced reactive oxygen and nitrogen species. Surg Today 2024; 54:1-13. [PMID: 36348164 DOI: 10.1007/s00595-022-02612-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022]
Abstract
Surgical intervention creates reactive oxygen species through diverse molecular mechanisms, including direct stimulation of immune-mediated inflammation necessary for wound healing. However, dysregulation of redox homeostasis in surgical patients overwhelms the endogenous defense system, slowing the healing process and damaging organs. We broadly surveyed reactive oxygen species that result from surgical interventions and the endogenous and/or exogenous antioxidants that control them. This study assimilates current reports on surgical sources of reactive oxygen and nitrogen species along with literature reports on the effects of endogenous and exogenous antioxidants in human, animal, and clinical settings. Although exogenous antioxidants are generally beneficial, endogenous antioxidant systems account for over 80% of total activity, varying based on patient age, sex, and health or co-morbidity status, especially in smokers, the diabetic, and the obese. Supplementation of exogenous compounds for support in surgical patients is thus theoretically beneficial, but a lack of persuasive clinical evidence has left this potential patient support strategy without clear guidelines. A more thorough understanding of the mechanisms of exogenous antioxidants in patients with compromised health statuses and pharmacokinetic profiling may increase the utility of such support in both the operating and recovery rooms.
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Affiliation(s)
- Bryan J Mathis
- International Medical Center, University of Tsukuba Affiliated Hospital, 2-1-1 Amakubo, Tsukuba, 305-8576, Ibaraki, Japan.
| | - Hideyuki Kato
- Department of Cardiovascular Surgery, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yujiro Matsuishi
- Department of Neuroscience Nursing, St. Luke's International University, Tokyo, Japan
| | - Yuji Hiramatsu
- Department of Cardiovascular Surgery, University of Tsukuba, Tsukuba, Ibaraki, Japan
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28
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Flick M, Hilty MP, Duranteau J, Saugel B. The microcirculation in perioperative medicine: a narrative review. Br J Anaesth 2024; 132:25-34. [PMID: 38030549 DOI: 10.1016/j.bja.2023.10.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 09/25/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
The microcirculation describes the network of the smallest vessels in our cardiovascular system. On a microcirculatory level, oxygen delivery is determined by the flow of oxygen-carrying red blood cells in a given single capillary (capillary red blood cell flow) and the density of the capillary network in a given tissue volume (capillary vessel density). Handheld vital videomicroscopy enables visualisation of the capillary bed on the surface of organs and tissues but currently is only used for research. Measurements are generally possible on all organ surfaces but are most often performed in the sublingual area. In patients presenting for elective surgery, the sublingual microcirculation is usually intact and functional. Induction of general anaesthesia slightly decreases capillary red blood cell flow and increases capillary vessel density. During elective, even major, noncardiac surgery, the sublingual microcirculation is preserved and remains functional, presumably because elective noncardiac surgery is scheduled trauma and haemodynamic alterations are immediately treated by anaesthesiologists, usually restoring the macrocirculation before the microcirculation is substantially impaired. Additionally, surgery is regional trauma and thus likely causes regional, rather than systemic, impairment of the microcirculation. Whether or not the sublingual microcirculation is impaired after noncardiac surgery remains a subject of ongoing research. Similarly, it remains unclear if cardiac surgery, especially with cardiopulmonary bypass, impairs the sublingual microcirculation. The effects of therapeutic interventions specifically targeting the microcirculation remain to be elucidated and tested. Future research should focus on further improving microcirculation monitoring methods and investigating how regional microcirculation monitoring can inform clinical decision-making and treatment.
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Affiliation(s)
- Moritz Flick
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - Matthias P Hilty
- Institute of Intensive Care Medicine, University Hospital of Zurich, Zurich, Switzerland
| | - Jacques Duranteau
- Department of Anesthesiology and Intensive Care, Paris-Saclay University, Bicêtre Hospital, Assistance Publique Hôpitaux de Paris (AP-HP), Le Kremlin-Bicêtre, France
| | - Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Outcomes Research Consortium, Cleveland, OH, USA
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29
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Zhu Y, He YJ, Yu Y, Xu D, Yuan SY, Yan H. Aldehyde Dehydrogenase 2 Preserves Mitochondrial Function in the Ischemic Heart: A Redox-dependent Mechanism for AMPK Activation by Thioredoxin-1. J Cardiovasc Pharmacol 2024; 83:93-104. [PMID: 37816196 DOI: 10.1097/fjc.0000000000001499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 09/24/2023] [Indexed: 10/12/2023]
Abstract
ABSTRACT Aldehyde dehydrogenase 2 (ALDH2) protects the ischemic heart by activating adenosine 5'-monophosphate-activated protein kinase (AMPK) signaling. However, the molecular mechanisms linking ALDH2 and AMPK signaling are not fully understood. This study aimed to explore the potential mechanisms linking ALDH2 and AMPK in myocardial ischemic injury. An ischemic model was established by ligating the left anterior descending coronary artery in rats. The overexpression or knockdown of ALDH2 in H9c2 cells treated with oxygen-glucose deprivation was obtained through lentivirus infection. Transferase-mediated dUTP nick-end labeling was used to evaluate apoptosis in an ischemic rat model and oxygen-glucose deprivation cells. ALDH2 activity, mitochondrial oxidative stress markers, adenosine triphosphate, respiratory control ratio, and cell viability in H9c2 cells were evaluated using a biological kit and 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide. Protein expression of ALDH2 , 4-hydroxynonenal, thioredoxin-1 (Trx-1), and AMPK-proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α) signaling pathway was detected through Western blotting. ALDH2 activation reduced ischemic-induced myocardial infarct size and apoptosis. ALDH2 protected mitochondrial function by enhancing mitochondrial respiratory control ratio and adenosine triphosphate production, alleviated mitochondrial oxidative stress, and suppressed myocardial apoptosis. Moreover, ALDH2 attenuated ischemia-induced oxidative stress and maintained Trx-1 levels by reducing 4-hydroxynonenal, thereby promoting AMPK-PGC-1α signaling activation. Inhibiting Trx-1 or AMPK abolished the cardioprotective effect of ALDH2 on ischemia. ALDH2 alleviates myocardial injury through increased mitochondrial biogenesis and reduced oxidative stress, and these effects were achieved through Trx1-mediating AMPK-PGC1-α signaling activation.
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Affiliation(s)
- Yi Zhu
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ya-Jun He
- Department of Intensive Care Unit, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China; and
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Yu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Xu
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shi-Ying Yuan
- Department of Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong Yan
- Department of Anesthesiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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30
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Schwager LE, Helwig NJ, Rogers EM, Banks NF, Alpers JP, Schulte SL, Lockwood CM, Jenkins NDM. Novel Energy Drink Improves Cognitive Function and Mood, without Influencing Myocardial Oxygen Demand or Ventricular Repolarization in Adult Gamers: A Randomized, Double-Blind, Placebo-Controlled, Crossover Trial. J Am Nutr Assoc 2024; 43:33-47. [PMID: 37186677 DOI: 10.1080/27697061.2023.2207096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/21/2023] [Indexed: 05/17/2023]
Abstract
OBJECTIVES To examine the efficacy of acute consumption of a novel energy drink (C4S) versus placebo for improving cognitive and gaming performance and mood. Secondarily, we examined the cardiovascular safety profile of acute C4S consumption. METHODS Forty-five healthy, young adult video gamers completed two experimental visits in randomized order where they consumed either C4S or a placebo and then completed a validated battery of neurocognitive tests, played five video games, and completed a mood state survey. Blood pressure (BP), heart rate (HR), oxygen saturation, and electrocardiogram measurements were taken at baseline and repeated throughout each visit. RESULTS Acute consumption of C4S improved cognitive flexibility (absolute mean or median difference [95% CI] = +4.3 [2.2-6.4]; p < 0.001; d = 0.63), executive function (+4.3 [2.3-6.3]; p < 0.001; d = 0.63), sustained attention (+2.1 [0.6-3.6]; p = 0.01; d = 0.44), motor speed (+2.9 [0.8-4.9]; p < 0.001; d = 0.44), psychomotor speed (+3.9 [0.1-7.7]; p = 0.04; d = 0.32) working memory (+1.0 [0.1-1.9]; p = 0.02; d = 0.35), and performance in the two-dimensional visuospatial game Tetris (+463 [-419-2,065] pts; p = 0.049; d = 0.30) compared to placebo. C4S also improved Fatigue-Inertia (-1 [-3-0]; p = 0.004; d = 0.45), Vigor-Activity (+2.4 [1.3-3.6]; p < 0.001; d = 0.64), Friendliness (+0 [0-1]; p = 0.04; d = 0.32), and Total Mood Disturbance (-3 [-6-0]; p = 0.002; d = 0.44). BP increased slightly in C4S versus placebo, while HR decreased from baseline to post-drink in the C4S condition. Rate-pressure-product was higher in C4S versus placebo independent of time but did not increase from baseline. There was no effect on corrected QT interval. CONCLUSION Acute consumption of C4S was efficacious for cognitive performance, visuospatial gaming performance, and mood enhancement, and had no effect on myocardial oxygen demand or ventricular repolarization, despite being associated with increases in BP.
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Affiliation(s)
- Laura E Schwager
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Nathaniel J Helwig
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Emily M Rogers
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Nile F Banks
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Justin P Alpers
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Sydni L Schulte
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
| | | | - Nathaniel D M Jenkins
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, University of Iowa, Iowa City, Iowa, USA
- Abboud Cardiovascular Research Center, University of Iowa, Iowa City, Iowa, USA
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31
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Martin-Folgar R, Sabroso C, Cañas-Portilla AI, Torres-Ruíz M, González-Caballero MC, Dorado H, Velasco I, Morales M. DNA damage and molecular level effects induced by polystyrene (PS) nanoplastics (NPs) after Chironomus riparius (Diptera) larvae. Chemosphere 2024; 346:140552. [PMID: 37914044 DOI: 10.1016/j.chemosphere.2023.140552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/03/2023]
Abstract
In this work, we analyzed the early molecular effects of polystyrene (PS) nanoplastics (NPs) on an aquatic primary consumer (larvae of Chironomus riparius, Diptera) to evaluate their potential DNA damage and the transcriptional response of different genes related to cellular and oxidative stress, endocrine response, developmental, oxygen transport, and immune response. After 24-h exposures of larvae to doses of PS NPs close to those currently found in the environment, the results revealed a large genotoxic effect. This end was evidenced after significant increases in DNA strand breaks of C. riparius larvae quantified by the comet assay, together with results obtained when analyzing the expression of four genes involved in DNA repair (xrrc1, ATM, DECAY and NLK) and which were reduced in the presence of these nanomaterials. Consequently, this reduction trend is likely to prevent the repair of DNA damage caused by PS NPs. In addition, the same tendency to reduce the expression of genes involved in cellular stress, oxidative stress, ecdysone pathway, development, and oxygen transport was observed. Taken together, these results suggest that PS NPs reduce the expression of hormonal target genes and a developmental gene. We show, for the first time, effects of PS NPs on the endocrine system of C. riparius and suggest a possible mechanism of blocking ecdysteroid hormones in insects. Moreover, the NPs were able to inhibit the expression of hemoglobin (Hb C), a protein involved in oxygen transport, and activate a gene of the humoral immune system. These data reveal for the first time the genomic effects of PS NPs in the aquatic invertebrate C. riparius, at the base of the food chain.
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Affiliation(s)
- Raquel Martin-Folgar
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Avda. Esparta s/n Las Rozas, (Madrid), Spain.
| | - Celia Sabroso
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Avda. Esparta s/n Las Rozas, (Madrid), Spain
| | - Ana I Cañas-Portilla
- Environmental Toxicology Unit, Centro Nacional de Sanidad Ambiental (CNSA), Instituto de Salud Carlos III (ISCIII), Ctra. Majadahonda-Pozuelo Km. 2,2., 28220, Majadahonda, (Madrid), Spain
| | - Mónica Torres-Ruíz
- Environmental Toxicology Unit, Centro Nacional de Sanidad Ambiental (CNSA), Instituto de Salud Carlos III (ISCIII), Ctra. Majadahonda-Pozuelo Km. 2,2., 28220, Majadahonda, (Madrid), Spain
| | - Mª Carmen González-Caballero
- Environmental Toxicology Unit, Centro Nacional de Sanidad Ambiental (CNSA), Instituto de Salud Carlos III (ISCIII), Ctra. Majadahonda-Pozuelo Km. 2,2., 28220, Majadahonda, (Madrid), Spain
| | - Helena Dorado
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Avda. Esparta s/n Las Rozas, (Madrid), Spain
| | - Ignacio Velasco
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Avda. Esparta s/n Las Rozas, (Madrid), Spain
| | - Mónica Morales
- Grupo de Biología y Toxicología Ambiental, Departamento de Física Matemática y de Fluidos, Facultad de Ciencias, UNED, Avda. Esparta s/n Las Rozas, (Madrid), Spain.
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32
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Yue Z, Xiaoli G, Juan Z, Qun W, Feng W, Yongke Z. Effect of the oxygenic groups on activated carbon on its hemocompatibility. Colloids Surf B Biointerfaces 2024; 233:113655. [PMID: 37988821 DOI: 10.1016/j.colsurfb.2023.113655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/03/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023]
Abstract
In this research, the effect of the oxygenic groups on activated carbon on its hemocompatibility was studied by liquid-phase oxidation to introduce oxygenic groups on its surface and subsequent heat treatment under a nitrogen environment to remove these groups. Hemocompatibility was assessed through coagulation, hemolysis, platelet adhesion, and protein adsorption using rabbit blood samples. Results showed that an increasing presence of oxygenic groups improved hemocompatibility, evidenced by enhanced coagulation, reduced hemolysis, better platelet adhesion, and decreased fetal bovine serum protein adsorption. Conversely, the removal of oxygenic groups diminished hemocompatibility, except for coagulation when groups were removed at 250 ℃ for 15 min. Therefore, this research presents a promising route to enhance the hemocompatibility of activated carbon, offering insights into surface modification for improved biomaterial design.
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Affiliation(s)
- Zhong Yue
- The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563099, China
| | - Ge Xiaoli
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China
| | - Zhang Juan
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China
| | - Wei Qun
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China
| | - Wang Feng
- The Second Affiliated Hospital of Zunyi Medical University, Zunyi 563099, China.
| | - Zhong Yongke
- Pharmacy school of Zunyi Medical University, Zunyi 563099, China.
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33
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Waris TS, Shah STA, Mehmood A, Mushtaq A, Zehra M, Zulfiqar S, Andleeb A, Jabbar F, Anjum MA, Anwar Chaudhry A, Rehman IU, Yar M. Chitosan-sodium percarbonate-based hydrogels with sustained oxygen release potential stimulated angiogenesis and accelerated wound healing. J Biomed Mater Res B Appl Biomater 2024; 112:e35344. [PMID: 37942693 DOI: 10.1002/jbm.b.35344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 09/28/2023] [Accepted: 10/14/2023] [Indexed: 11/10/2023]
Abstract
The prolonged hypoxic conditions hinder chronic wounds from healing and lead to severe conditions such as delayed re-epithelialization and enhanced risk of infection. Multifunctional wound dressings are highly required to address the challenges of chronic wounds. Herein, we report polyurethane-coated sodium per carbonate-loaded chitosan hydrogel (CSPUO2 ) as a multifunctional dressing. The hydrogels (Control, CSPU, and CSPUO2 ) were prepared by freeze gelation method and the developed hydrogels showed high porosity, good absorption capacity, and adequate biodegradability. The release of oxygen from the CSPUO2 hydrogel was confirmed by the increase in pH and a sustained oxygen release was observed over the period of 21 days, due to polyurethane (CSPU) coating. The CSPUO2 hydrogel exhibited around 2-fold increased angiogenic potential in CAM assay when compared with Control and CSPU dressing. CSPUO2 also showed good level of antibacterial efficacy against E. coli and S. aureus. In a full-thickness rat wound model, CSPUO2 hydrogel considerably accelerated wound healing with exceptional re-epithelialization granulation tissue formation less inflammatory cells and improved skin architecture highlighting the tremendous therapeutic potential of this hydrogel when compared with control and CSPU to treat chronic diabetic and burn wounds.
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Affiliation(s)
- Tayyba Sher Waris
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | | | - Azra Mehmood
- Centre for Excellence in Molecular Biology, University of the Punjab, Quaid-i-Azam Campus, Lahore, Pakistan
| | - Afaq Mushtaq
- Centre for Excellence in Molecular Biology, University of the Punjab, Quaid-i-Azam Campus, Lahore, Pakistan
| | - Mubashra Zehra
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Saima Zulfiqar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Anisa Andleeb
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Faiza Jabbar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Muhammad Awais Anjum
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
- School of Medicine, University of Central Lancashire, Preston, UK
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore, Pakistan
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Liu G, Zu M, Wang L, Xu C, Zhang J, Reis RL, Kundu SC, Xiao B, Duan L, Yang X. CaO 2-Cu 2O micromotors accelerate infected wound healing through antibacterial functions, hemostasis, improved cell migration, and inflammatory regulation. J Mater Chem B 2023; 12:250-263. [PMID: 38086697 DOI: 10.1039/d3tb02335d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
During the wound tissue healing process, the relatively weak driving forces of tissue barriers and concentration gradients lead to a slow and inefficient penetration of bioactive substances into the wound area, consequently showing an impact on the effectiveness of deep wound healing. To overcome these challenges, we constructed biocompatible CaO2-Cu2O "micromotors". These micromotors reacted with the fluids at the wound site, releasing oxygen bubbles and propelling particles deep into the wound tissue. In vitro experimental results revealed that these micromotors not only exhibited antibacterial and hemostatic functions but also facilitated the migration of dermal fibroblasts and vascular endothelial cells, while modulating the inflammatory microenvironment. A methicillin-resistant Staphylococcus aureus infected full-thickness-wound model was created in rats, in which CaO2-Cu2O micromotors markedly expedited the wound healing process. Specifically, CaO2-Cu2O provided a sterile microenvironment for wounds and increased the amounts of M1-type macrophages during infection and inflammation. During the proliferation and remodeling stages, the amount of M1 macrophages gradually decreased, while the amount of M2 macrophages increased, and CaO2-Cu2O did not prolong the inflammatory period. Furthermore, the introduction of a regenerated silk fibroin (RSF) film on the wound surface successfully enhanced the therapeutic effects of CaO2-Cu2O against the infected wound. The combined application of oxygen-producing CaO2-Cu2O micromotors and a RSF film demonstrates significant therapeutic potential and emerges as a promising candidate for the treatment of infected wounds.
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Affiliation(s)
- Ga Liu
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Menghang Zu
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Lingshuang Wang
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Cheng Xu
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Jiamei Zhang
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Rui L Reis
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Subhas C Kundu
- 3Bs Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco 4805-017, Guimaraes, Portugal
- ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Bo Xiao
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Lian Duan
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
| | - Xiao Yang
- State Key Laboratory of Resource Insects, College of Sericulture, Textile, and Biomass Sciences, Southwest University, Beibei, Chongqing 400715, China.
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Sharma M, Khan FH, Mahmood R. Nickel chloride generates cytotoxic ROS that cause oxidative damage in human erythrocytes. J Trace Elem Med Biol 2023; 80:127272. [PMID: 37516010 DOI: 10.1016/j.jtemb.2023.127272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 06/07/2023] [Accepted: 07/23/2023] [Indexed: 07/31/2023]
Abstract
BACKGROUND Nickel is a heavy metal that is regarded as a possible hazard to living organisms due to its toxicity and carcinogenicity. Nickel chloride (NiCl2), an inorganic divalent Ni compound, has been shown to cause oxidative stress in cells by altering the redox equilibrium. We have investigated the effect of NiCl2 on isolated human erythrocytes under in vitro condition. METHODS Isolated erythrocytes were treated with different concentrations of NiCl2 (25-500 µM) for 24 h at 37 ºC. Hemolysates were prepared and several biochemical parameters were analyzed in them. RESULTS Treatment of erythrocytes with NiCl2 enhanced the intracellular generation of reactive oxygen species (ROS). A significant increase in hydrogen peroxide levels and oxidation of proteins and lipids was also seen. This was accompanied by a reduction in levels of nitric oxide, glutathione, free amino groups and total sulfhydryl groups. NiCl2 treatment impaired both enzymatic and non-enzymatic defense systems, resulting in lowered antioxidant capacity and diminished ability of cells to quench free radicals and reduce metal ions. NiCl2 exposure also had an inhibitory effect on the activity of enzymes involved in pathways of glucose metabolism (glycolytic and pentose phosphate shunt pathways). Increased level of methemoglobin, which is inactive in oxygen transport, was also seen. The rate of heme breakdown increased resulting in the release of free iron. Exposure to NiCl2 led to considerable cell lysis, indicating damage to the erythrocyte membrane. This was supported by the inhibition of membrane bound enzymes and increase in the osmotic fragility of NiCl2 treated cells. NiCl2 treatment caused severe morphological alterations with the conversion of normal discocytes to echinocytes. All changes were seen in a NiCl2 concentration-dependent manner. CONCLUSION NiCl2 generates cytotoxic ROS in human erythrocytes which cause oxidative damage that can decrease the oxygen carrying capacity of blood and also lead to anemia.
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Affiliation(s)
- Monika Sharma
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Fahim Halim Khan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, U.P., India.
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Cole W, Woodmansey E, LoDico Iii LR. Management of late radiation tissue injury ulcers with continuous topical oxygen therapy supports wound healing in patients of advanced age following Mohs surgery: a case series. Wounds 2023; 35:E420-E424. [PMID: 38277630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
BACKGROUND The long-term chronic effect of radiotherapy is commonly referred to as LRTI. Clinical complications such as skin atrophy, tissue fibrosis, endothelial damage, ulcer formation, and compromised wound healing are common sequela. Despite advances in medicine over the past decade, there remains a need for effective treatments for LRTI skin necrosis and ulcerations. MATERIALS AND METHODS This case series discusses cTOT in 3 patients of advanced age with LRTI wounds having undergone Mohs surgery. All wounds had been recalcitrant to multiple wound care treatments. All patients suffered with significant wound pain as well. RESULTS cTOT resulted in complete wound healing in all 3 patient cases. Additionally, all 3 patients reported a significant reduction in wound pain during the course of therapy. CONCLUSIONS The positive outcomes exhibited in this case series suggest that cTOT is an effective treatment in the management of Mohs surgery patients with compromised wound healing due to radiation, advanced age, and comorbidities.
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Affiliation(s)
- Windy Cole
- Kent State University College of Podiatric Medicine, Independence, OH, USA
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Fu W, Gu H, Ye Y. Long Noncoding RNA MIAT Modulates Chronic Retinal Ischemia-Reperfusion Injury in Mice via the microRNA-203-3p/SNAI2 Axis. Chem Res Toxicol 2023; 36:1683-1692. [PMID: 37870436 DOI: 10.1021/acs.chemrestox.3c00129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
Retinal ischemia-reperfusion injury (RIRI) is a vital pathological process of multiple ocular diseases. This study aimed at investigating the effects of the MIAT/miR-203-3p/SNAI2 axis on RIRI. RIRI was produced by inducing an exceedingly high intraocular pressure (IOP) in mice. Mouse retinal ganglion cells (RGCs) were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) to mimic in vitro models. Relevant oligonucleotides or plasmids were transfected into OGD/R-induced RGCs in vitro or injected into RIRI mice models in vivo via a vitreous cavity. The findings of our paper indicated that MIAT and SNAI2 were highly expressed and miR-203-3p was lowly expressed in mouse RIRI tissues and OGD/R-induced RGCs. Interfering MIAT promoted the viability of OGD/R-induced RGCs, decreased apoptosis, and reduced oxidative stress in vitro. Silencing MIAT increased retinal neuronal cell numbers and decreased retinal neuronal cell apoptosis in mouse RIRI tissues in vivo. MIAT sponged miR-203-3p, and miR-203-3p targeted and inhibited SNAI2 expression. SNAI2 up-regulation or miR-203-3p down-regulation reversed the protective effects of MIAT down-regulation on RIRI in mice and OGD/R-induced RGCs. MIAT sponges miR-203-3p upregulated the expression of SNAI2, thereby promoting RIRI in mice. In summary, MIAT may be a therapeutic target for the treatment of chronic RIRI.
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Affiliation(s)
- Weina Fu
- Department of Ophthalmology, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang 315040, China
| | - Hong Gu
- Department of Ophthalmology, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang 315040, China
| | - Yunyan Ye
- Department of Ophthalmology, Ningbo Medical Center Lihuili Hospital, Ningbo University, Ningbo, Zhejiang 315040, China
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He Y, Shen Y, Feng X, Ruan S, Zhao Y, Mu L, Wu J, Yang H. Tree Frog-Derived Cathelicidin Protects Mice against Bacterial Infection through Its Antimicrobial and Anti-Inflammatory Activities and Regulatory Effect on Phagocytes. ACS Infect Dis 2023; 9:2252-2268. [PMID: 37855266 DOI: 10.1021/acsinfecdis.3c00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Due to excessive use or abuse in the food industry, agriculture, and medicine, many pathogens are developing resistance against conventional antibiotics. Antimicrobial peptides (AMPs) hold promise as effective therapeutic options for the treatment of bacterial infections. Herein, a novel cathelicidin antimicrobial peptide (Zs-CATH) was identified from the tree frog Zhangixalus smaragdinus. Zs-CATH mainly adopted an amphipathic β-sheet structure in a membrane-mimetic environment. It showed broad-spectrum antibacterial activity against Gram-positive and Gram-negative bacteria in vitro and significantly protected mice from lethal infections induced by Gram-negative bacteria Escherichia coli ATCC 25922 or Gram-positive bacteria Staphylococcus aureus ATCC 25923 in vivo. In addition, Zs-CATH exerted a strong anti-inflammatory effect by neutralizing lipopolysaccharide (LPS) and lipoteichoic acid (LTA) and promoting macrophage M2 polarization, thus inhibiting the secretion of proinflammatory cytokines (TNF-α, IL-6, and IL-1β) and enhancing the production of M2 macrophage markers IL-10, IL-4, and CD206. The MAPK and NF-κB inflammatory signaling pathways and transcriptional activator 6 (STAT6) were involved in this effect. In mice, Zs-CATH rapidly recruited neutrophils and monocytes/macrophages to the abdominal cavity but not T and B lymphocytes. Zs-CATH did not exhibit a direct chemoattractant effect on phagocytes but significantly promoted phagocyte migration in the presence of macrophages. Zs-CATH stimulated macrophages to secrete chemokines CXCL1, CXCL2, and CCL2, which mediated the recruitment of phagocytes. Furthermore, Zs-CATH promoted the production of reactive oxygen species (ROS) and neutrophil extracellular traps (NETs), which are oxygen-dependent and oxygen-independent mechanisms of the microbicidal activity of neutrophils, respectively. Zs-CATH exhibited no toxic side effects on mammalian cells and mice. These findings show that in addition to direct antibacterial activity, Zs-CATH also possesses the ability to modulate immune and inflammatory processes during bacterial infection, showing potential for development as anti-infective and/or anti-inflammatory agents.
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Affiliation(s)
- Yanmei He
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Yan Shen
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Xiaoli Feng
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Shimei Ruan
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Yingying Zhao
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Lixian Mu
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Jing Wu
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Hailong Yang
- School of Basic Medical Sciences, Kunming Medical University, Kunming 650500, Yunnan, China
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Luo H, Diao X, Qian F, Shi W, Li K, Liu H, Wu Y, Shen J, Xin H. Fabrication of a micro/nanocomposite structure on the surface of high oxygen concentration titanium to promote bone formation. Biomater Adv 2023; 154:213631. [PMID: 37757645 DOI: 10.1016/j.bioadv.2023.213631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/27/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
This study investigated the properties of the micro/nano composite structure on the surface of high oxygen concentration titanium (HOC-Ti) after anodic oxidation modification (HOC-NT) and evaluated its biocompatibility as a dental implant material in vitro and in vivo. HOC-Ti was produced by titanium powders and rutile powders using the powder metallurgy method. Its surface was modified by anodic oxidation. After detecting the electrochemical characteristics, the surface properties of HOC-NT were investigated. MC3T3 and MLO-Y4 cells were employed to evaluate the biocompatibility of HOC-NT and cocultured to study the effects of the changes in osteocytes induced by HOC-NT on osteoblasts. While, its possible mechanism was investigated. In addition, osseointegration around the HOC-NT implant was investigated through in vivo experiments. The results showed that a unique micronano composite structure on the HOC-Ti surface with excellent hydrophilicity and suitable surface roughness was created after anodic oxidation promoted by its electrochemical characteristics. The YAP protein may play an important role in regulating bone remodeling by β-catenin and Rankl/OPG Signaling Pathways. An in vivo study also revealed an accelerated formation rate of new bone and more stable osseointegration around the HOC-NT implant. In view of all experimental results, it could be concluded that the unique morphology of HOC-NT has enhanced physicochemical and biological properties. The promotion of bone formation around implants indicated the feasibility of HOC-NT for applications in oral implants.
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Affiliation(s)
- Huiwen Luo
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Xiaoou Diao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Fei Qian
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Wendi Shi
- School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China
| | - Kai Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Huan Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Yulu Wu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China.
| | - Jianghua Shen
- School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Haitao Xin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China.
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Lin SK, Wang HW, Shun CT, Yang CN, Hong CY, Lai EHH, Cheng SJ, Chen MH, Yang H, Lin HY, Wu FY, Kok SH. Sirtuin 6 ameliorates arthritis through modulating cyclic AMP-responsive element binding protein/CCN1/cyclooxygenase 2 pathway in osteoblasts. J Bone Miner Metab 2023; 41:772-784. [PMID: 37898986 DOI: 10.1007/s00774-023-01468-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 09/18/2023] [Indexed: 10/31/2023]
Abstract
INTRODUCTION CCN1 is an immediate-early gene product pivotal for arthritis progression. We have previously shown that sirtuin 6 (SIRT6) inhibited hypoxia-induced CCN1 expression in osteoblasts. Herein we examined the contribution of cyclic AMP-responsive element binding protein (CREB)/CRE to this suppressive action and the influence of CCN1 on cyclooxygenase (COX) 2 synthesis. MATERIALS AND METHODS MC3T3-E1 murine osteoblasts were cultured under normoxia (21% oxygen) or hypoxia (2% oxygen). Expressions of CCN1, phospho-CREB (Ser133), COX2 and relevant kinases were assessed by Western blot. SIRT6 was overexpressed in cultured osteoblasts and arthritic joints by a lentiviral-based technique. Activities of CCN1 gene promoter constructs were examined by luciferase reporter assay. Interaction between CREB and CCN1 promoter was assessed by chromatin immunoprecipitation (ChIP). Collagen-induced arthritis (CIA) was established in 20 rats to evaluate the effects of SIRT6 therapy on osteoblastic expressions of phospho-CREB, CCN1 and COX2. RESULTS SIRT6 suppressed hypoxia-enhanced CCN1 expression and CREB phosphorylation. Attenuation of calcium/calmodulin-dependent protein kinase II (CaMKII) may be responsible for SIRT6-induced CREB inhibition. CRE at - 286 bp upstream of the ATG start codon was essential for CCN1 expression under hypoxia and SIRT6 reduced hypoxia-stimulated CREB/CRE interaction. Forced expression of CREB rescued SIRT6-suppressed CCN1 synthesis. CCN1 induced COX2 expression in osteoblasts. In rat CIA, the therapeutic effect of SIRT6 was accompanied by decreases in osteoblastic expressions of phospho-CREB, CCN1 and COX2. CONCLUSION Our study indicated that the benefits of SIRT6 to inflammatory arthritis and bone resorption are at least partially derived from its modulation of CREB/CCN1/COX2 pathway in osteoblasts.
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Affiliation(s)
- Sze-Kwan Lin
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Han-Wei Wang
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
- Graduate Institute of Clinical Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Tung Shun
- Department of Forensic Medicine and Pathology, National Taiwan University Hospital, Taipei, Taiwan
| | - Cheng-Ning Yang
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chi-Yuan Hong
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
- College of Bio-Resources and Agriculture, National Taiwan University, Taipei, Taiwan
| | - Eddie Hsiang-Hua Lai
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shih-Jung Cheng
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Mu-Hsiung Chen
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
| | - Hsiang Yang
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
| | - Hung-Ying Lin
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
| | - Fang-Yu Wu
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan
| | - Sang-Heng Kok
- Department of Dentistry, National Taiwan University Hospital, No. 1 Chang-Te Street, Taipei, Taiwan.
- Department of Dentistry, School of Dentistry, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Zheng Y, Zhu T, Chen B, Fang Y, Wu Y, Feng X, Pang M, Wang H, Zhu J, Lin Z. Diallyl disulfide attenuates pyroptosis via NLRP3/Caspase-1/IL-1β signaling pathway to exert a protective effect on hypoxic-ischemic brain damage in neonatal rats. Int Immunopharmacol 2023; 124:111030. [PMID: 37844463 DOI: 10.1016/j.intimp.2023.111030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/26/2023] [Accepted: 10/04/2023] [Indexed: 10/18/2023]
Abstract
Hypoxic-ischemic encephalopathy (HIE) is a perinatal brain disease caused by hypoxia in neonates. It is one of the leading causes of neonatal death in the perinatal period, as well as disability beyond the neonatal period. Due to the lack of a unified and comprehensive treatment strategy for HIE, research into its pathogenesis is essential. Diallyl disulfide (DADS) is an allicin extract, with detoxifying, antibacterial, and cardiovascular disease protective effects. This study aimed to determine whether DADS can alleviate HIE induced brain damage in rats and oxygen-glucose deprivation (OGD)-induced pyroptosis in PC12 cells, as well as whether it can inhibit pyroptosis via the NLRP3/Caspase-1/IL-1β signaling pathway. In vivo, DADS significantly reduced the cerebral infarction volume, alleviated inflammatory reaction, reduced astrocyte activation, promoted tissue structure recovery, improved pyroptosis caused by HIE and improved the prognosis following HI injury. In vitro findings indicated that DADS increased cell activity, decreased LDH activity and reduced the expression of pyroptosis-related proteins, including IL-1β, IL-18, and certain inflammatory factors in PC12 cells caused by OGD. Mechanistically, DADS inhibited pyroptosis and protected against HIE via the NLRP3/Caspase-1/IL-1β pathway. The specific inhibitor of caspase-1, VX-765, inhibited caspase-1 activation, and IL-1β expression was determined. Additionally, the overexpression of NLRP3 reversed the protective effect of allicin against OGD-induced pyroptosis. In conclusion, these findings demonstrated that DADS inhibits the NLRP3/Caspase-1/IL-1β signaling pathway and decreases HI brain damage.
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Affiliation(s)
- Yihui Zheng
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China; School of Second Clinical Medical, Wenzhou Medical University, Wenzhou, China
| | - Tingyu Zhu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China; School of Second Clinical Medical, Wenzhou Medical University, Wenzhou, China
| | - Binwen Chen
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Yu Fang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Yiqing Wu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Xiaoli Feng
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Mengdan Pang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Hongzeng Wang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China
| | - Jianghu Zhu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China; School of Second Clinical Medical, Wenzhou Medical University, Wenzhou, China
| | - Zhenlang Lin
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Perinatal Medicine of Wenzhou, Wenzhou, Zhejiang, China; School of Second Clinical Medical, Wenzhou Medical University, Wenzhou, China.
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Li WQ, Li JY, Zhang YF, Luo WQ, Dou Y, Yu S. Effect of Reactive Oxygen Scavenger N,N'-Dimethylthiourea (DMTU) on Seed Germination and Radicle Elongation of Maize. Int J Mol Sci 2023; 24:15557. [PMID: 37958543 PMCID: PMC10649595 DOI: 10.3390/ijms242115557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023] Open
Abstract
Reactive oxygen species (ROS) are an important part of adaptation to biotic and abiotic stresses and regulate seed germination through positive or negative signaling. Seed adaptation to abiotic stress may be mediated by hydrogen peroxide (H2O2). The effects of the ROS scavenger N,N'-dimethylthiourea (DMTU) on maize seed germination through endogenous H2O2 regulation is unclear. In this study, we investigated the effects of different doses of DMTU on seed endogenous H2O2 and radicle development parameters using two maize varieties (ZD958 and DMY1). The inhibitory effect of DMTU on the germination rate and radicle growth was dose-dependent. The inhibitory effect of DMTU on radicle growth ceased after transferring maize seeds from DMTU to a water medium. Histochemical analyses showed that DMTU eliminated stable H2O2 accumulation in the radicle sheaths and radicles. The activity of antioxidant enzyme and the expression of antioxidant enzyme-related genes (ZmAPX2 and ZmCAT2) were reduced in maize seeds cultured with DMTU compared with normal culture conditions (0 mmol·dm-3 DMTU). We suggest the use of 200 mmol·dm-3 DMTU as an H2O2 scavenger to study the ROS equilibrium mechanisms during the germination of maize seeds, assisting in the future with the efficient development of plant growth regulators to enhance the seed germination performance of test maize varieties under abiotic stress.
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Affiliation(s)
- Wei-Qing Li
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (W.-Q.L.); (J.-Y.L.); (W.-Q.L.); (Y.D.); (S.Y.)
| | - Jia-Yu Li
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (W.-Q.L.); (J.-Y.L.); (W.-Q.L.); (Y.D.); (S.Y.)
| | - Yi-Fei Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (W.-Q.L.); (J.-Y.L.); (W.-Q.L.); (Y.D.); (S.Y.)
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing 163319, China
| | - Wen-Qi Luo
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (W.-Q.L.); (J.-Y.L.); (W.-Q.L.); (Y.D.); (S.Y.)
| | - Yi Dou
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (W.-Q.L.); (J.-Y.L.); (W.-Q.L.); (Y.D.); (S.Y.)
| | - Song Yu
- College of Agriculture, Heilongjiang Bayi Agricultural University, Daqing 163319, China; (W.-Q.L.); (J.-Y.L.); (W.-Q.L.); (Y.D.); (S.Y.)
- Key Laboratory of Low-Carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing 163319, China
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43
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Hosseini FS, Naghavi N, Sazgarnia A. A physicochemical model of X-ray induced photodynamic therapy (X-PDT) with an emphasis on tissue oxygen concentration and oxygenation. Sci Rep 2023; 13:17882. [PMID: 37857727 PMCID: PMC10587104 DOI: 10.1038/s41598-023-44734-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023] Open
Abstract
X-PDT is one of the novel cancer treatment approaches that uses high penetration X-ray radiation to activate photosensitizers (PSs) placed in deep seated tumors. After PS activation, some reactive oxygen species (ROS) like singlet oxygen (1O2) are produced that are very toxic for adjacent cells. Efficiency of X-PDT depends on 1O2 quantum yield as well as X-ray mortality rate. Despite many studies have been modeled X-PDT, little is known about the investigation of tissue oxygen content in treatment outcome. In the present study, we predicted X-PDT efficiency through a feedback of physiological parameters of tumor microenvironment includes tissue oxygen and oxygenation properties. The introduced physicochemical model of X-PDT estimates 1O2 production in a vascularized and non-vascularized tumor under different tissue oxygen levels to predict cell death probability in tumor and adjacent normal tissue. The results emphasized the importance of molecular oxygen and the presence of a vascular network in predicting X-PDT efficiency.
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Affiliation(s)
- Farideh S Hosseini
- Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Nadia Naghavi
- Department of Electrical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Ameneh Sazgarnia
- Medical Physics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Physics, Faculty of Medicine, University of Medical Sciences, Mashhad, Iran
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Liu G, Liu M, Li X, Ye X, Cao K, Liu Y, Yu Y. Peroxide-Simulating and GSH-Depleting Nanozyme for Enhanced Chemodynamic/Photodynamic Therapy via Induction of Multisource ROS. ACS Appl Mater Interfaces 2023; 15:47955-47968. [PMID: 37812458 DOI: 10.1021/acsami.3c09873] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Reactive oxygen species (ROS) generation, using photodynamic therapy (PDT) and chemodynamic therapy (CDT), is a promising strategy for cancer treatment. However, the production of ROS in tumor cells is often limited by hypoxia, insufficient substrates, and high level of ROS scavengers in a tumor microenvironment, which seriously affects the efficacy of ROS-related tumor therapies. Herein, we report a lipid-supported manganese oxide nanozyme, MLP@DHA&Ce6, by decorating a MnO2 nano-shell on the liposome loaded with dihydroartemisinin (DHA) and photosensitizer Ce6 for generating multisource ROS to enhance cancer therapy. MLP@DHA&Ce6 can be accumulated in tumors and can release active components, Mn2+ ions, and O2. The conjugate generates ROS via nanozyme-catalyzed CDT using DHA as a substrate, PDT through Ce6, and the Fenton reaction catalyzed by Mn2+ ions. The production of O2 from MnO2 enhanced Ce6-mediated PDT under near-infrared light irradiation. Meanwhile, MLP@DHA&Ce6 showed prominent glutathione depletion, which allowed ROS to retain high activity in tumor cells. In addition, the release of Mn2+ ions and DHA in tumor cells induced ferroptosis. This multisource ROS generation and ferroptosis effect of MLP@DHA&Ce6 led to enhanced therapeutic effects in vivo.
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Affiliation(s)
- Gang Liu
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, P. R. China
| | - Mingyu Liu
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, P. R. China
| | - Xiujing Li
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, P. R. China
| | - Xiaorong Ye
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, P. R. China
| | - Kaiming Cao
- Key Laboratory of Precision and Intelligent Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yangzhong Liu
- Key Laboratory of Precision and Intelligent Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yue Yu
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, P. R. China
- Department of Gastroenterology, the First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei 230001, P. R. China
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Grieco JP, Compton SLE, Davis GN, Guinan J, Schmelz EM. Genetic and Functional Modifications Associated with Ovarian Cancer Cell Aggregation and Limited Culture Conditions. Int J Mol Sci 2023; 24:14867. [PMID: 37834315 PMCID: PMC10573375 DOI: 10.3390/ijms241914867] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
The aggregation of cancer cells provides a survival signal for disseminating cancer cells; however, the underlying molecular mechanisms have yet to be elucidated. Using qPCR gene arrays, this study investigated the changes in cancer-specific genes as well as genes regulating mitochondrial quality control, metabolism, and oxidative stress in response to aggregation and hypoxia in our progressive ovarian cancer models representing slow- and fast-developing ovarian cancer. Aggregation increased the expression of anti-apoptotic, stemness, epithelial-mesenchymal transition (EMT), angiogenic, mitophagic, and reactive oxygen species (ROS) scavenging genes and functions, and decreased proliferation, apoptosis, metabolism, and mitochondrial content genes and functions. The incorporation of stromal vascular cells (SVF) from obese mice into the spheroids increased DNA repair and telomere regulatory genes that may represent a link between obesity and ovarian cancer risk. While glucose had no effect, glutamine was essential for aggregation and supported proliferation of the spheroid. In contrast, low glucose and hypoxic culture conditions delayed adhesion and outgrowth capacity of the spheroids independent of their phenotype, decreased mitochondrial mass and polarity, and induced a shift of mitochondrial dynamics towards mitophagy. However, these conditions did not reduce the appearance of polarized mitochondria at adhesion sites, suggesting that adhesion signals that either reversed mitochondrial fragmentation or induced mitobiogenesis can override the impact of low glucose and oxygen levels. Thus, the plasticity of the spheroids' phenotype supports viability during dissemination, allows for the adaptation to changing conditions such as oxygen and nutrient availability. This may be critical for the development of an aggressive cancer phenotype and, therefore, could represent druggable targets for clinical interventions.
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Affiliation(s)
- Joseph P. Grieco
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Tech, Blacksburg, VA 24061, USA;
| | - Stephanie L. E. Compton
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA 24061, USA; (S.L.E.C.); (G.D.N.)
| | - Grace N. Davis
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA 24061, USA; (S.L.E.C.); (G.D.N.)
| | - Jack Guinan
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA 24061, USA; (S.L.E.C.); (G.D.N.)
| | - Eva M. Schmelz
- Department of Human Nutrition, Foods and Exercise, Virginia Tech, Blacksburg, VA 24061, USA; (S.L.E.C.); (G.D.N.)
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Qi W, Jonker MJ, Teichmann L, Wortel M, Ter Kuile BH. The influence of oxygen and oxidative stress on de novo acquisition of antibiotic resistance in E. coli and Lactobacillus lactis. BMC Microbiol 2023; 23:279. [PMID: 37784016 PMCID: PMC10544416 DOI: 10.1186/s12866-023-03031-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023] Open
Abstract
BACKGROUND Bacteria can acquire resistance through DNA mutations in response to exposure to sub-lethal concentrations of antibiotics. According to the radical-based theory, reactive oxygen species (ROS), a byproduct of the respiratory pathway, and oxidative stress caused by reactive metabolic byproducts, play a role in cell death as secondary killing mechanism. In this study we address the question whether ROS also affects development of resistance, in the conditions that the cells is not killed by the antibiotic. RESULTS To investigate whether oxygen and ROS affect de novo acquisition of antibiotic resistance, evolution of resistance due to exposure to non-lethal levels of antimicrobials was compared in E. coli wildtype and ΔoxyR strains under aerobic and anaerobic conditions. Since Lactococcus lactis (L. lactis) does not have an active electron transport chain (ETC) even in the presence of oxygen, and thus forms much less ROS, resistance development in L. lactis was used to distinguish between oxygen and ROS. The resistance acquisition in E. coli wildtype under aerobic and anaerobic conditions did not differ much. However, the aerobically grown ΔoxyR strain gained resistance faster than the wildtype or anaerobic ΔoxyR. Inducing an ETC by adding heme increased the rate at which L. lactis acquired resistance. Whole genome sequencing identified specific mutations involved in the acquisition of resistance. These mutations were specific for each antibiotic. The lexA mutation in ΔoxyR strain under aerobic conditions indicated that the SOS response was involved in resistance acquisition. CONCLUSIONS The concept of hormesis can explain the beneficial effects of low levels of ROS and reactive metabolic byproducts, while high levels are lethal. DNA repair and mutagenesis may therefore expedite development of resistance. Taken together, the results suggest that oxygen as such barely affects resistance development. Nevertheless, non-lethal levels of ROS stimulate de novo acquisition of antibiotic resistance.
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Affiliation(s)
- Wenxi Qi
- Laboratory for Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Martijs J Jonker
- RNA Biology & Applied Bioinformatics, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Lisa Teichmann
- Laboratory for Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Meike Wortel
- Laboratory for Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Benno H Ter Kuile
- Laboratory for Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands.
- Netherlands Food and Consumer Product Safety Authority, Office for Risk Assessment, Utrecht, The Netherlands.
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Perim RR, Vinit S, Mitchell GS. Cervical spinal hemisection effects on spinal tissue oxygenation and long-term facilitation of phrenic, renal and splanchnic sympathetic nerve activity. Exp Neurol 2023; 368:114478. [PMID: 37451584 DOI: 10.1016/j.expneurol.2023.114478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/28/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
HYPOTHESES Moderate acute intermittent hypoxia (mAIH) elicits plasticity in both respiratory (phrenic long-term facilitation; pLTF) and sympathetic nerve activity (sympLTF) in rats. Although mAIH produces pLTF in normal rats, inconsistent results are reported after cervical spinal cord injury (cSCI), possibly due to greater spinal tissue hypoxia below the injury site. There are no reports concerning cSCI effects on sympLTF. Since mAIH is being explored as a therapeutic modality to restore respiratory and non-respiratory movements in humans with chronic SCI, both effects are important. To understand cSCI effects on mAIH-induced pLTF and sympLTF, partial or complete C2 spinal hemisections (C2Hx) were performed and, 2 weeks later, we assessed: 1) ipsilateral cervical spinal tissue oxygen tension; 2) ipsilateral & contralateral pLTF; and 3) ipsilateral sympLTF in splanchnic and renal sympathetic nerves. METHODS Male Sprague-Dawley rats were studied intact, or after partial (single slice) or complete C2Hx (slice with ∼1 mm aspiration). Two weeks post-C2Hx, rats were anesthetized and prepared for recordings of bilateral phrenic nerve activity and spinal tissue oxygen pressure (PtO2). Splanchnic and renal sympathetic nerve activity was recorded in intact and complete C2Hx rats. RESULTS Spinal PtO2 near phrenic motor neurons was decreased after C2Hx, an effect most prominent with complete vs. partial injuries; baseline PtO2 was positively correlated with mean arterial pressure. Complete C2Hx impaired ipsilateral but not contralateral pLTF; with partial C2Hx, ipsilateral pLTF was unaffected. In intact rats, mAIH elicited splanchnic and renal sympLTF. Complete C2Hx had minimal impact on baseline ipsilateral splanchnic or renal sympathetic nerve activity and renal, but not splanchnic, sympLTF remained intact. CONCLUSION Greater tissue hypoxia likely impairs pLTF and splanchnic sympLTF post-C2Hx, although renal sympLTF remains intact. Increased sympathetic nerve activity post-mAIH may have therapeutic benefits in individuals living with chronic SCI since anticipated elevations in systemic blood pressure may mitigate hypotension characteristic of people living with SCI.
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Affiliation(s)
- Raphael R Perim
- Breathing Research and Therapeutics Center, Department of Physical Therapy and McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Stéphane Vinit
- Breathing Research and Therapeutics Center, Department of Physical Therapy and McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Gordon S Mitchell
- Breathing Research and Therapeutics Center, Department of Physical Therapy and McKnight Brain Institute, University of Florida, Gainesville, FL, USA.
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Wang Z, Kwong CHT, Zhao H, Ding YF, Gao C, Zhang D, Cheng Q, Wei J, Zhang QW, Wang R. Microalgae Microneedle Supplies Oxygen for Antiphotoaging Treatment. ACS Appl Bio Mater 2023; 6:3463-3471. [PMID: 37161309 DOI: 10.1021/acsabm.3c00192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
UV exposure often triggers photoaging of the skin. Pharmacological treatment suffers from severe side effects as well as poor efficacy because of insufficient skin penetration. Dissolved oxygen has been previously shown to reverse photoaged skin; however, the treatment is often limited by the availability of equipment (e.g., high-pressure oxygen). Poor oxygen diffusion into the skin has also limited its therapeutic efficacy. Herein, we developed a microneedle patch to deliver living microalgae to the deeper layers of the skin for efficient oxygenation and reversal of photoaging. The continuous release of oxygen from microalgae in the skin through photosynthesis reversed the inflammatory microenvironment and reduced reactive oxygen species levels in the photodamaged skin, leading to collagen regeneration and reduced wrinkles. This study provides not only a means for highly efficient skin oxygenation and reversal of photoaging but also an important theoretical basis for the clinical treatment of photoaging.
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Affiliation(s)
- Zeyu Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Cheryl H T Kwong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Huichao Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Yuan-Fu Ding
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Cheng Gao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Daiyan Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Qian Cheng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Jianwen Wei
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
- Macau Society of Supramolecular Chemistry and Biomaterials, Macao SAR 999078, China
| | - Qing-Wen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR 999078, China
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Hong J, Choi Y, Lee G, Kim J, Jang Y, Yoon CH, Seo HW, Park IK, Kang SH, Choi J. Nanosome-Mediated Delivery Of Hdac Inhibitors and Oxygen Molecules for the Transcriptional Reactivation of Latent Hiv-Infected Cd4 + T Cells. Small 2023; 19:e2301730. [PMID: 37118849 DOI: 10.1002/smll.202301730] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/11/2023] [Indexed: 06/19/2023]
Abstract
The treatment of human immunodeficiency virus (HIV) infection is notoriously difficult due to the ability of this virus to remain latent in the host's CD4+ T cells. Histone deacetylases (HDACs) interfere with DNA transcription in HIV-infected hosts, resulting in viral latency. Therefore, HDAC inhibitors can be used to activate viral transcription in latently infected cells, after which the virus can be eliminated through a shock-and-kill strategy. Here, a drug delivery system is developed to effectively deliver HDAC inhibitors to latent HIV-infected cells. Given that the efficacy of HDAC inhibitors is reduced under hypoxic conditions, oxygen-containing nanosomes are used as drug carriers. Oxygen-containing nanosomes can improve the efficiency of chemotherapy by delivering essential oxygen to cells. Additionally, their phospholipid bilayer structure makes them uniquely well-suited for drug delivery. In this study, a novel drug delivery system is developed by taking advantage of the oxygen carriers in these oxygen nanosomes, incorporating a multi-drug strategy consisting of HDAC inhibitors and PKA activators, and introducing CXCR4 binding peptides to specifically target CD4+ T cells. Oxygen nanosomes with enhanced targeting capability through the introduction of the CXCR4 binding peptide mitigate drug toxicity and slow down drug release. The observed changes in the expression of p24, a capsid protein of HIV, indirectly confirm that the proposed drug delivery system can effectively induce transcriptional reactivation of HIV in latent HIV-infected cells.
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Affiliation(s)
- Joohye Hong
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Yonghyun Choi
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
- Feynman Institute of Technology, Nanomedicine Corporation, Seoul, 06974, Republic of Korea
| | - Gahyun Lee
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Jiwon Kim
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Yeonwoo Jang
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Cheol-Hee Yoon
- Division of Chronic Viral Disease, Center for Emerging Virus Research, National Institute of Health, Cheongju, 28159, Republic of Korea
| | - Hyun Wook Seo
- Division of Chronic Viral Disease, Center for Emerging Virus Research, National Institute of Health, Cheongju, 28159, Republic of Korea
| | - In-Kyu Park
- Department of Biomedical Sciences, Chonnam National University Medical School, 160 Baekseo-ro, Gwangju, 58128, Republic of Korea
| | - Shin Hyuk Kang
- Departments of Plastic and Reconstructive Surgery, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, 06973, Republic of Korea
| | - Jonghoon Choi
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
- Feynman Institute of Technology, Nanomedicine Corporation, Seoul, 06974, Republic of Korea
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50
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Zhao J, Le M, Li J, Huang Q, Chen H, Zhang W, Mao H, Sun Q, Li A, Zhao Y, Yu L, Yi M, Wang J, Li X, Zhang G, Ma J, Dong X. LINC00938 alleviates hypoxia ischemia encephalopathy induced neonatal brain injury by regulating oxidative stress and inhibiting JNK/p38 MAPK signaling pathway. Exp Neurol 2023; 367:114449. [PMID: 37257715 DOI: 10.1016/j.expneurol.2023.114449] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/02/2023]
Abstract
Hypoxic-ischemic encephalopathy (HIE) is an important factor leading to permanent damage of central nervous system (CNS) and even neonatal death. Long non-coding RNAs (lncRNAs) has been shown to get involved in the pathogenesis of nervous system diseases. LINC00938 is an intergenic lncRNA which is reported to be involved in neurodegenerative disease. However, the potential role of LINC00938 in nerve injury of neonatal HIE is undetermined. Here, we found that the expression of LINC00938 in the whole blood of neonates with HIE was downregulated compared with the non-HIE group. Functional study revealed that the expression of LINC00938 was significantly decreased in oxygen-glucose deprivation (OGD)-induced SH-SY5Y. Knockdown of LINC00938 induced the neural cell apoptosis by increased the protein level of Bax, Cleaved-Caspase3 and decreased the expression of Bcl-2. In addition, overexpression of LINC00938 prevented the apoptosis of SH-SY5Y from OGD injury. RNA-seq analysis showed that MAPK signaling was involved in the anti-apoptosis function of LINC00938. LINC00938 knockdown induced the activation of c-Jun-N-terminal kinase (JNK), p38 mitogen-activated protein kinase, and inhibited the activation of ERK signaling. However, LINC00938 play neuroprotective role in OGD-induced SH-SY5Y by suppression the phosphorylation of JNK and p38 MAPK rather than regulation of ERK signaling pathway. Further analyses illustrated that the cell apoptosis of neuronal cell was dependent on the elevation of reactive oxygen species (ROS) and result in mitochondria dysfunction in LINC00938 knockdown SH-SY5Y. Pretreated with ROS inhibitor N-acetylcysteine amide (NACA) dramatically suppressed LINC00938 knockdown induced oxidative stress and mitochondria dysfunction which induced cell apoptosis. In addition, NACA treatment significantly reduced the expression of p-JNK and p-p38 in OGD-induced SH-SY5Y. Furthermore, overexpression of LINC00938 displayed a notably neuroprotective effect by suppress central nervous system cell apoptosis via alleviating oxidative stress in CoCl2-induced hypoxic HIE model of zebrafish. Taken together, these results suggested that LINC00938 can act as a neuroprotective factor to inhibit oxidative stress and apoptosis of CNS under HIE conditions.
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Affiliation(s)
- Jing Zhao
- Department of General Practitioners, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China; Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Meini Le
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Jie Li
- Department of Neurosurgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 20033, China
| | - Qiong Huang
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Haocong Chen
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Wenyi Zhang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Huiwen Mao
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Qing Sun
- Department of Pediatrics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 20033, China
| | - Aiguo Li
- Department of Pediatrics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 20033, China
| | - Yingmin Zhao
- Department of Pediatric, Jingjiang People's Hospital Affiliated to Yangzhou University, Jingjiang 214500, China
| | - Lingling Yu
- Department of Pediatric, Jingjiang People's Hospital Affiliated to Yangzhou University, Jingjiang 214500, China
| | - Mingjiang Yi
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Jie Wang
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China
| | - Xinyuan Li
- Department of Neurosurgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 20033, China.
| | - Guangming Zhang
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China.
| | - Jun Ma
- Department of General Practitioners, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China.
| | - Xiaohua Dong
- Department of Anesthesiology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China; Department of Neurosurgery, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 20033, China; Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 XianXia Road, Shanghai 200336, China.
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