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Yang G, Zhou W, Zhang M, Zhong X, Qiu H, Xiang Y, Zhang Z, Li P, Wang D. Induced oxidative stress and apoptosis by 1-bromopropane in SH-SY5Y cells correlates with inhibition of Nrf2 function. Drug Chem Toxicol 2024; 47:756-766. [PMID: 38047545 DOI: 10.1080/01480545.2023.2288795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/01/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
In this study, we established SH-SY5Y human neuroblastoma cells as an in vitro model to investigate whether oxidative stress and the nuclear erythroid-2 related factor 2 (Nrf2) signaling pathway are associated with 1-bromopropane (1-BP) -induced nerve cell injury. We identified that 1-BP exhibited neurotoxicity mainly through oxidant-based processes in SH-SY5Y cells, as reactive oxygen species, malondialdehyde levels, and 8-hydroxy-2' -deoxyguanosine significantly increased, while superoxide dismutase activity decreased. Furthermore, Nrf2 translocation from the cytosol to the nucleus was inhibited, as was downstream protein expression of the Nrf2-regulated genes HO-1 and Bcl-2. Activation of caspase-9 and -3 increased, and apoptosis was observed. Vitamin C alleviated 1-BP-induced apoptosis by decreasing oxidative stress and activating the Nrf2 signaling pathway. Knockdown of Nrf2 in SH-SY5Y cells increased 1-BP-induced reactive oxygen species production and cell apoptosis, and inhibited HO-1 and Bcl-2 protein expression, while overexpression of Nrf2 alleviated these processes. These findings suggest that 1-BP-induced oxidative stress and apoptosis in SH-SY5Y cells are associated with Nrf2 function inhibition.
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Affiliation(s)
- Guangtao Yang
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Wei Zhou
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Minhong Zhang
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Xiaohuan Zhong
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Haili Qiu
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Yingping Xiang
- Institute of Occupational Hazard Assessment, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Zhimin Zhang
- Department of Medical Laboratory, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Peimao Li
- Department of Medical Laboratory, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
| | - Dianpeng Wang
- Department of Medical Laboratory, Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen, Guangdong, China
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Chen J, Jiang WD, Feng L, Wu P, Liu Y, Jin XW, Ren HM, Tang JY, Zhang RN, Zhou XQ. Myo-inositol: A potential game-changer in preventing gill cell death and alleviating "gill rot" in grass carp (Ctenopharyngodon idellus). FISH & SHELLFISH IMMUNOLOGY 2024; 153:109850. [PMID: 39179187 DOI: 10.1016/j.fsi.2024.109850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 08/26/2024]
Abstract
Increasing evidence shows the potential threat of gill rot in freshwater fish culture. F. columnare is wide-spread in aquatic environments, which can cause fish gill rot and result in high mortality and losses of fish. This study investigated the effects of myo-inositol (MI) on the proliferation, structural integrity, and different death modes of grass carp (Ctenopharyngodon idella) gill epithelial cells, as well as its possible mechanism. 30 mg/L MI up-regulated CCK8 OD value and the protein level of solute carrier family 5A 3 (SLC5A3), and down-regulated the reactive oxygen species (ROS) content in gill cells and lactate dehydrogenase (LDH) release in the culture medium (P < 0.05). MI up-regulated the protein level of Beclin1, the protein level and fluorescence expression of microtubule-associated protein light chain 3B (LC3B) and down-regulated the protein level of sequestosome-1 (SQSTM1, also called p62) (P < 0.05). MI down-regulated the protein levels of Cysteine aspartate protease-1 (caspase-1), Gasdermin E (GSDME) and Cleaved interleukin 1 beta (IL-1β) (P < 0.05). MI up-regulated the protein level of caspase-8 (P < 0.05), but had no effect on apoptosis (P > 0.05). MI down-regulated the mRNA expressions and protein levels of tumor necrosis factor α (tnfα), TNF receptor 1 (tnfr1), receptor interacting protein 1 (ripk1), receptor interacting protein 3 (ripk3) and mixed lineage kinase domain-like protein (mlkl), and reduce the ratio of p-MLKL/MLKL (P < 0.05). The addition of MI or necrosulfonamide (NSA) alone, or the addition of MI after induction of necroptosis, significantly up-regulated the cell activity and the protein level of SLC5A3 in gill cells, and significantly reduced the LDH release in the culture medium and the intracellular ROS content, the number of necroptosis cells, the protein expression of TNFα, TNFR1 and RIPK1, and the ratio of p-RIPK3/RIPK3 and p-MLKL/MLKL (P < 0.05). It indicated MI induce autophagy may relate to Beclin1/LC3/p62 signaling pathway, inhibits pyroptosis may attribute to Caspase-1/GSDMD/IL-1β signaling pathway, and inhibits necroptosis via MLKL signaling pathway. However, MI had no effect on apoptosis.
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Affiliation(s)
- Jie Chen
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wei-Dan Jiang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Sichuan, 611130, China
| | - Lin Feng
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Sichuan, 611130, China
| | - Pei Wu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Sichuan, 611130, China
| | - Yang Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Sichuan, 611130, China
| | - Xiao-Wan Jin
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hong-Mei Ren
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jia-Yong Tang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Rui-Nan Zhang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiao-Qiu Zhou
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, Ministry of Agriculture and Rural Affairs, Key Laboratory of Sichuan Province, Sichuan, 611130, China.
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3
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Rodriguez Fernandez V, Amato R, Piaggi S, Pinto B, Casini G, Bruschi F. A New Ex Vivo Model Based on Mouse Retinal Explants for the Study of Ocular Toxoplasmosis. Pathogens 2024; 13:701. [PMID: 39204301 PMCID: PMC11356793 DOI: 10.3390/pathogens13080701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 08/05/2024] [Accepted: 08/18/2024] [Indexed: 09/04/2024] Open
Abstract
Ocular toxoplasmosis is the most prevalent clinical manifestation of T. gondii infection, which causes irreversible retinal damage. Different experimental models have been developed to study this pathology. In the present study, a new, ex vivo model is proposed to contribute to the elucidation of disease mechanisms and to possible therapeutic solutions. Ex-vivo retinal explants, prepared from mouse retinas following established protocols, were incubated with T. gondii tachyzoites maintained in Vero cells. At different times, starting at 12 h up to 10 days of incubation, the explants were analyzed with immunofluorescence and Western blot to investigate their responses to parasite infection. T. gondii invasion of the retinal thickness was evident after 3 days in culture, where parasites could be detected around retinal cell nuclei. This was paralleled by putative cyst formation and microglial activation. At the same time, an evident increase in inflammatory and oxidative stress markers was detected in infected explants compared to controls. Cell death also appeared to occur in retinal explants after 3 days of T. gondii infection, and it was characterized by increased necroptotic but not apoptotic markers. The proposed model recapitulates the main characteristics of T. gondii retinal infection within 3 days of incubation and, therefore, allows for studying the very early events of the process. In addition, it requires only a limited number of animals and offers easy manipulation and accessibility for setting up different experimental conditions and assessing the effects of putative drugs for therapy.
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Affiliation(s)
- Veronica Rodriguez Fernandez
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
- Department of Infectious Diseases and Public Health, La Sapienza University, 00185 Rome, Italy
| | - Rosario Amato
- Department of Biology, University of Pisa, 56126 Pisa, Italy
| | - Simona Piaggi
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
| | - Barbara Pinto
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
| | - Giovanni Casini
- Department of Biology, University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56126 Pisa, Italy
| | - Fabrizio Bruschi
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
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Djordjevic Aleksic J, Kolarević S, Jovanović Marić J, Kračun-Kolarević M, Žegura B, Štern A, Sladić D, Novaković I, Vuković-Gačić B. Influence of alkylthio and arylthio derivatives of tert-butylquinone on the induction of DNA damage in a human hepatocellular carcinoma cell line (HepG2). Toxicol In Vitro 2024; 99:105882. [PMID: 38936441 DOI: 10.1016/j.tiv.2024.105882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/30/2024] [Accepted: 06/19/2024] [Indexed: 06/29/2024]
Abstract
The aim of this study was to investigate the effects of tert-butylquinone (TBQ) and its alkylthio and arylthio derivatives on DNA in vitro, using acellular and cellular test systems. Direct interaction with DNA was studied using the plasmid pUC19. Cytotoxic (MTS assay) and genotoxic (comet assay and γH2AX focus assays) effects, and their influence on the cell cycle were studied in the HepG2 cell line. Our results show that TBQ and its derivatives did not directly interact with DNA. The strongest cytotoxic effect on the HepG2 cells was observed for the derivative 2-tert-butyl-5,6-(ethylenedithio)-1,4-benzoquinone (IC50 64.68 and 55.64 μM at 24-h and 48-h treatment, respectively). The tested derivatives did not significantly influence the cell cycle distribution in the exposed cellular populations. However, all derivatives showed a genotoxic activity stronger than that of TBQ in the comet assay, with 2-tert-butyl-5,6-(ethylenedithio)-1,4-benzoquinone producing the strongest effect. The same derivative also induced DNA double-strand breaks in the γH2AX focus assay.
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Affiliation(s)
| | - Stoimir Kolarević
- University of Belgrade, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, Belgrade, Serbia
| | - Jovana Jovanović Marić
- University of Belgrade, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, Belgrade, Serbia
| | - Margareta Kračun-Kolarević
- University of Belgrade, Institute for Biological Research "Siniša Stanković", National Institute of the Republic of Serbia, Belgrade, Serbia
| | - Bojana Žegura
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Alja Štern
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Dušan Sladić
- University of Belgrade, Faculty of Chemistry, Belgrade, Serbia
| | - Irena Novaković
- University of Belgrade, Institute for Chemistry, Technology and Metallurgy, National Institute of the Republic of Serbia, Department for Chemistry, Belgrade, Serbia
| | - Branka Vuković-Gačić
- University of Belgrade, Centre for Genotoxicology and Ecogenotoxicology, Faculty of Biology, Belgrade, Serbia
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Kurien BT, Ice JA, Wood R, Pharaoh G, Cavett J, Lewis V, Bhaskaran S, Rasmussen A, Lessard CJ, Farris AD, Sivils KL, Koelsch KA, Van Remmen H, Scofield RH. Mitochondrial Dysfunction and Fatigue in Sjögren's Disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.17.598269. [PMID: 38948768 PMCID: PMC11212898 DOI: 10.1101/2024.06.17.598269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Objectives Sjögren's disease (SjD) is a common exocrine disorder typified by chronic inflammation and dryness, but also profound fatigue, suggesting a pathological basis in cellular bioenergetics. In healthy states, damaged or dysfunctional mitochondrial components are broken down and recycled by mitophagy, a specialized form of autophagy. In many autoimmune disorders, however, evidence suggests that dysfunctional mitophagy allows poorly functioning mitochondria to persist and contribute to a cellular milieu with elevated reactive oxygen species. We hypothesized that mitophagic processes are dysregulated in SjD and that dysfunctional mitochondria contribute to overall fatigue. We sought to link fatigue with mitochondrial dysfunction directly in SjD, heretofore unexamined, and further sought to assess the pathogenic extent and implications of dysregulated mitophagy in SjD. Methods We isolated pan T cells via negative selection from the peripheral blood mononuclear cells of 17 SjD and 8 age-matched healthy subjects, all of whom completed fatigue questionnaires prior to phlebotomy. Isolated T cells were analyzed for mitochondrial oxygen consumption rate (OCR) and glycolysis using Seahorse, and linear correlations with fatigue measures were assessed. A mitophagy transcriptional signature in SjD was identified by reanalysis of whole-blood microarray data from 190 SjD and 32 healthy subjects. Differential expression analyses were performed by case/control and subgroup analyses comparing SjD patients by mitophagy transcriptional cluster against healthy subjects followed by bioinformatic interpretation using gene set enrichment analysis. Results Basal OCR, ATP-linked respiration, maximal respiration, and reserve capacity were significantly lower in SjD compared to healthy subjects with no observed differences in non-mitochondrial respiration, basal glycolysis, or glycolytic stress. SjD lymphocytic mitochondria show structural alterations compared to healthy subjects. Fatigue scores related to pain/discomfort in SjD correlated with the altered OCR. Results from subgroup analyses by mitophagic SjD clusters revealed highly variable inter-cluster differentially expressed genes (DEGs) and expanded the number of SjD-associated gene targets by tenfold within the same dataset. Conclusion Mitochondrial dysfunction, associated with fatigue, is a significant problem in SjD and warrants further investigation.
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Dall'Olio A, Matias G, Carvalho H, Carreira ACO, Campanelli T, Batista V, Dantas J, Fratini P, Miglino MA. Utilization of a Decellularized Skin Scaffold for Repair of a Cleft Palate in a Dog: A Case Report. J Vet Dent 2024; 41:225-234. [PMID: 37644824 DOI: 10.1177/08987564231197146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Cleft palates are oral deformities that mostly affect puppies. They are frequently extensive and characterized by bone and palatal mucosa malformation. This deformity is a serious condition that may result in the death of the dog, therefore surgical treatment is recommended. Tissue bioengineering has emerged as a valuable option to treat cleft palates by applying acellular biological scaffolds as grafts. This case report proposed a new approach for surgical correction of canine cleft palate through a grafting technique using a decellularized scaffold. A decellularized portion of skin was implanted to correct a large cleft palate in a 3-month-old female Pug dog. The skin fragment was obtained from a dog cadaver and a decellularization protocol was performed. Under general anesthesia, a bilateral mucoperiosteal separation of the entire length of cleft margins was performed, and the scaffold was then positioned between the tissue and the bone palate. The interaction of the grafted scaffold with the oral mucosa and palatine layers resulted in total cleft closure, without postsurgical rejection or infection, indicating the applicability of this technique in dog's cleft palate correction. This is the first reported case demonstrating this new technique, which resulted in full cleft closure and healing.
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Affiliation(s)
- Adriano Dall'Olio
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Gustavo Matias
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Hianka Carvalho
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Ana Claudia O Carreira
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Thais Campanelli
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Vitoria Batista
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Julia Dantas
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Paulo Fratini
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
| | - Maria A Miglino
- Department of Surgery, Universidade de São Paulo Faculdade de Medicina Veterinária e Zootecnia, Sao Paulo, Brazil
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Turkmen Koc SN, Rezaei Benam S, Aral IP, Shahbazi R, Ulubayram K. Gold nanoparticles-mediated photothermal and photodynamic therapies for cancer. Int J Pharm 2024; 655:124057. [PMID: 38552752 DOI: 10.1016/j.ijpharm.2024.124057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
Cancer remains one of the major causes of death globally, with one out of every six deaths attributed to the disease. The impact of cancer is felt on psychological, physical, and financial levels, affecting individuals, communities, and healthcare institutions. Conventional cancer treatments have many challenges and inadequacies. Nanomedicine, however, presents a promising solution by not only overcoming these problems but also offering the advantage of combined therapy for treatment-resistant cancers. Nanoparticles specifically engineered for use in nanomedicine can be efficiently targeted to cancer cells through a combination of active and passive techniques, leading to superior tumor-specific accumulation, enhanced drug availability, and reduced systemic toxicity. Among various nanoparticle formulations designed for cancer treatment, gold nanoparticles have gained prominence in the field of nanomedicine due to their photothermal, photodynamic, and immunologic effects without the need for photosensitizers or immunotherapeutic agents. To date, there is no comprehensive literature review that focuses on the photothermal, photodynamic, and immunologic effects of gold nanoparticles. In this review, significant attention has been devoted to examining the parameters pertaining to the structure of gold nanoparticles and laser characteristics, which play a crucial role in influencing the efficacy of photothermal therapy (PTT) and photodynamic therapy (PDT). Moreover, this article provides insights into the success of PTT and PDT mediated by gold nanoparticles in primary cancer treatment, as well as the immunological effects of PTT and PDT on metastasis and recurrence, providing a promising strategy for cancer therapy. In summary, gold nanoparticles, with their unique properties, have the potential for clinical application in various cancer therapies, including the treatment of primary cancer, recurrence and metastasis.
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Affiliation(s)
- Seyma Nur Turkmen Koc
- Department of Nanotechnology and Nanomedicine, Hacettepe University, Ankara, Türkiye
| | - Sanam Rezaei Benam
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, USA
| | - Ipek Pınar Aral
- Department of Radiation Oncology, Faculty of Medicine, Ankara Yıldırım Beyazıt University, Ankara Bilkent City Hospital, Ankara, Türkiye
| | - Reza Shahbazi
- Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Indianapolis, USA; Tumor Microenvironment & Metastasis, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, USA; Brown Center for Immunotherapy, Indiana University School of Medicine, Indianapolis, USA.
| | - Kezban Ulubayram
- Department of Nanotechnology and Nanomedicine, Hacettepe University, Ankara, Türkiye; Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Türkiye; Department of Bioengineering, Hacettepe University, Ankara, Türkiye.
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8
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Li K, Mi L, Bai X, Lu Y, Zhang Y, Li J, Pu Y. Induction of apoptosis and autophagy by dichloromethane extract from Patrinia scabiosaefolia Fisch on acute myeloid leukemia cells. ENVIRONMENTAL TOXICOLOGY 2024; 39:2123-2137. [PMID: 38108539 DOI: 10.1002/tox.24090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/26/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023]
Abstract
Patrinia scabiosaefolia Fisch (PS), a perennial herb belonging to the genus Pinus in the family Pinnacle Sauce, has been previously known for its analgesic, anti-inflammatory, antibacterial, and antitumor properties. However, the specific mechanism behind its antileukemic effect remains unknown. This study focused on the cytotoxicity and potential modes of action of the dichloromethane extract from PS (DEPS) in acute myeloid leukemia (AML) cells. Our results demonstrated that DEPS reduced cell viability, arrested the cell cycle in the G2/M phase, disrupted the mitochondrial membrane potential, increased reactive oxygen species (ROS) production, and upregulated the expression of Bax/Bcl-2 and Cleaved caspase-3. However, the impact of DEPS on cell viability and the expression of apoptosis-associated proteins was reversed upon pretreatment with the caspase-3 inhibitor (Z-DEVD-FMK) in HL-60 cells, which demonstrated that DEPS could induce apoptosis through the mitochondria-associated apoptotic pathway. Interestingly, DEPS also influenced autophagy by upregulating the expression of LC3II/I, P62, and Beclin-1 proteins, and the autophagy inhibition chloroquine(CQ) could attenuate the apoptotic effects of DEPS in HL-60 cells. Furthermore, SMART 2.0 analysis predicted that the main components present in DEPS were likely terpenoids. In conclusion, DEPS possibly exerts antileukemic effects by downregulating the PI3K/AKT and ERK pathways, thereby promoting intracellular ROS production, activating the mitochondrial apoptotic pathway, and affecting autophagy, providing valuable insights for the potential future application of PS in the treatment of AML.
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Affiliation(s)
- Kejing Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Leyuan Mi
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
- Clinical Laboratory Center, Gansu Provincial Maternity and Child-Care Hospital (Gansu Provincial Hospital), Lanzhou, Gansu, China
| | - Xinyi Bai
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Yuan Lu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Ying Zhang
- Central Laboratory, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu, China
| | - Juan Li
- Central Laboratory, The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, Gansu, China
| | - Yudong Pu
- Precision Medicine Center of the Songshan Lake (SSL) Central Hospital of Dongguan City, Dongguan, Guangdong, China
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9
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Ji B, Liu J, Ma Y, Yin Y, Xu H, Shen Q, Yu J. Minnelide Markedly Reduces Proteinuria in Mice with Adriamycin Nephropathy by Protecting Against Podocyte Injury. Appl Biochem Biotechnol 2023; 195:7379-7396. [PMID: 37000351 PMCID: PMC10754751 DOI: 10.1007/s12010-023-04333-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 04/01/2023]
Abstract
Minimal change disease (MCD) is the most common cause of idiopathic nephrotic syndrome in children. The current major therapy is hormones for most steroid-sensitive patients. However, many patients have recurrent relapses of the disease and require long-term immunosuppression, leading to significant morbidity due to the side effects of the drugs. Therefore, better drugs need to be urgently explored to treat nephrotic syndrome while avoiding the side effects of drugs. Minnelide, a water-soluble prodrug of triptolide, has been proved to be effective in treating cancers in many clinical trials. This study aimed to investigate the therapeutic effect of minnelide in mice with adriamycin (ADR) nephropathy, its underlying protection mechanisms, and its reproductive toxicity. Minnelide was administered intraperitoneally to 6-8-week female mice with adriamycin nephropathy for 2 weeks, and the urine, blood, and kidney tissues were taken to analyze the therapeutic effect. In addition, we evaluated reproductive toxicity by measuring the levels of gonadal hormones and observing the histological changes in ovaries and testes. Primary mouse podocytes were exposed to puromycin (PAN) to damage the cytoskeleton and induce apoptosis, and then, triptolide was used to evaluate the therapeutic effect and underlying protection mechanisms in vitro. It was observed that minnelide dramatically alleviated proteinuria and apoptosis in mice with adriamycin nephropathy. In vitro, triptolide ameliorated puromycin-induced cytoskeletal rearrangement and apoptosis via reactive oxygen species-mediated mitochondrial pathway. In addition, minnelide caused no reproductive toxicity to male and female mice. The results suggested that minnelide might be a promising drug for nephrotic syndrome.
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Affiliation(s)
- Baowei Ji
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Junchao Liu
- Department of Traditional Chinese Medicine, Children's Hospital of Fudan University, Shanghai, China
| | - Yanli Ma
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Ye Yin
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Hong Xu
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China.
| | - Qian Shen
- Department of Nephrology, Children's Hospital of Fudan University, Shanghai, China
| | - Jian Yu
- Department of Traditional Chinese Medicine, Children's Hospital of Fudan University, Shanghai, China
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Dogan Buzoglu H, Ozcan M, Bozdemir O, Aydin Akkurt KS, Zeybek ND, Bayazit Y. Evaluation of oxidative stress cycle in healthy and inflamed dental pulp tissue: a laboratory investigation. Clin Oral Investig 2023; 27:5913-5923. [PMID: 37642737 DOI: 10.1007/s00784-023-05203-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023]
Abstract
OBJECTIVES The purpose of this study was to investigate the oxidative stress cycle consisting of reactive oxygen molecules (ROS), glutathione (GSH) and glutathione S-transferase (GST) in caries-related pulp inflammation. METHODOLOGY Fifty-four pulp tissue samples were collected from healthy donors with the diagnosis of reversible pulpitis, symptomatic irreversible pulpitis, and healthy pulp. Twelve pulp samples from each group were homogenized and total protein, ROS, GSH, and GST were measured by spectrophotometer. The remaining 6 samples from each group were prepared for paraffin block and used for the histopathologic and immunohistochemical evaluation of oxidative stress parameters and TUNEL labeling. Data were analyzed statistically. RESULTS The results revealed that total protein levels significantly decreased; however, ROS levels increased in both reversible and irreversible pulpitis compared to the healthy pulp (p < 0.01). Also, as inflammation increases, GST enzyme levels decrease while GSH levels increase significantly (p < 0.05). It was found that the number of TUNEL (+) cells was increased in irreversible pulpitis samples compared to healthy and reversible pulpitis groups (p < 0.05). GSTP1 and GSH immunoreactivity were also observed in irreversible pulpitis samples. CONCLUSIONS It has been revealed that caries-related inflammation alters the oxidative stress cycle in dental pulp tissue. The increase in GSH levels in the inflamed dental pulp due to the increase in ROS levels may improve the defensive ability of the dental pulp. CLINICAL RELEVANCE There is a relationship between oxidative stress and inflammation. Control of excessive oxidative stress in pulpitis can stimulate reparative and regenerative processes. The present findings may provide an overview of the management of oxidative stress in cases with pulpitis during regenerative treatments.
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Affiliation(s)
- H Dogan Buzoglu
- Department of Endodontics, Faculty of Dentistry, Hacettepe University, Sihhiye, 06230, Ankara, Turkey.
| | - M Ozcan
- Department of Medical Biochemistry, Faculty of Medicine, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
| | - O Bozdemir
- Department of Stem Cell Sciences, Graduate School of Health Sciences, Hacettepe University, Ankara, Turkey
| | - K S Aydin Akkurt
- Department of Histology & Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - N D Zeybek
- Department of Histology & Embryology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Y Bayazit
- Department of Medical Biochemistry, Faculty of Medicine, Hacettepe University, Ankara, Turkey
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11
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Park SH, Lee HC, Jeong HM, Lee JS, Cha HJ, Kim CH, Kim J, Song KS. Inhibition of Urban Particulate Matter-Induced Airway Inflammation by RIPK3 through the Regulation of Tight Junction Protein Production. Int J Mol Sci 2023; 24:13320. [PMID: 37686124 PMCID: PMC10487650 DOI: 10.3390/ijms241713320] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/24/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023] Open
Abstract
Urban particulate matter (UPM) is a high-hazard cause of various diseases in humans, including in the respiratory tract, skin, heart, and even brain. Unfortunately, there is no established treatment for the damage caused by UPM in the respiratory epithelium. In addition, although RIPK3 is known to induce necroptosis, its intracellular role as a negative regulator in human lungs and bronchial epithelia remains unclear. Here, the endogenous expression of RIPK3 was significantly decreased 6 h after exposure to UPM. In RIPK3-ovexpressed cells, RIPK3 was not moved to the cytoplasm from the nucleus. Interestingly, the overexpression of RIPK3 dramatically decreased TEER and F-actin formation. Its overexpression also decreased the expression of genes for pro-inflammatory cytokines (IL-6 and IL-8) and tight junctions (ZO-1, -2, -3, E-cadherin, and claudin) during UPM-induced airway inflammation. Importantly, overexpression of RIPK3 inhibited the UPM-induced ROS production by inhibiting the activation of iNOS and eNOS and by regulating mitochondrial fission processing. In addition, UPM-induced activation of the iκB and NF-κB signaling pathways was dramatically decreased by RIPK3, and the expression of pro-inflammatory cytokines was decreased by inhibiting the iκB signaling pathway. Our data indicated that RIPK3 is essential for the UPM-induced inflammatory microenvironment to maintain homeostasis. Therefore, we suggest that RIPK3 is a potential therapeutic candidate for UPM-induced pulmonary inflammation.
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Affiliation(s)
- Sun-Hee Park
- Department of Medical Science, Kosin University College of Medicine, Seo-gu, Busan 49267, Republic of Korea; (S.-H.P.); (H.-C.L.); (H.M.J.)
| | - Hyun-Chae Lee
- Department of Medical Science, Kosin University College of Medicine, Seo-gu, Busan 49267, Republic of Korea; (S.-H.P.); (H.-C.L.); (H.M.J.)
| | - Hye Min Jeong
- Department of Medical Science, Kosin University College of Medicine, Seo-gu, Busan 49267, Republic of Korea; (S.-H.P.); (H.-C.L.); (H.M.J.)
| | - Jeong-Sang Lee
- Department of Functional Foods and Biotechnology, College of Medical Sciences, Jeonju University, 303 Cheonjam-ro, Jeonju 55069, Republic of Korea;
| | - Hee-Jae Cha
- Department of Genetics, Kosin University College of Medicine, Seo-gu, Busan 49267, Republic of Korea;
| | - Cheol Hong Kim
- Department of Pediatrics, Myongji Hospital, Hanyang University College of Medicine, Goyang 15588, Republic of Korea;
| | - Jeongtae Kim
- Department of Anatomy, Kosin University College of Medicine, Seo-gu, Busan 49267, Republic of Korea;
| | - Kyoung Seob Song
- Department of Medical Science, Kosin University College of Medicine, Seo-gu, Busan 49267, Republic of Korea; (S.-H.P.); (H.-C.L.); (H.M.J.)
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12
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Wu G, Yu G, Zheng M, Peng W, Li L. Recent Advances for Dynamic-Based Therapy of Atherosclerosis. Int J Nanomedicine 2023; 18:3851-3878. [PMID: 37469455 PMCID: PMC10352141 DOI: 10.2147/ijn.s402678] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 05/06/2023] [Indexed: 07/21/2023] Open
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease, which may lead to high morbidity and mortality. Currently, the clinical treatment strategy for AS is administering drugs and performing surgery. However, advanced therapy strategies are urgently required because of the deficient therapeutic effects of current managements. Increased number of energy conversion-based organic or inorganic materials has been used in cancer and other major disease treatments, bringing hope to patients with the development of nanomedicine and materials. These treatment strategies employ specific nanomaterials with specific own physiochemical properties (external stimuli: light or ultrasound) to promote foam cell apoptosis and cholesterol efflux. Based on the pathological characteristics of vulnerable plaques, energy conversion-based nano-therapy has attracted increasing attention in the field of anti-atherosclerosis. Therefore, this review focuses on recent advances in energy conversion-based treatments. In addition to summarizing the therapeutic effects of various techniques, the regulated pathological processes are highlighted. Finally, the challenges and prospects for further development of dynamic treatment for AS are discussed.
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Affiliation(s)
- Guanghao Wu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People’s Republic of China
| | - Guanye Yu
- Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University, School of Medicine, Shanghai, 200072, People’s Republic of China
| | - Meiling Zheng
- Dongzhimen Hospital Beijing University of Chinese Medicine, Beijing, 101121, People’s Republic of China
| | - Wenhui Peng
- Department of Cardiology, Shanghai Tenth People’s Hospital, Tongji University, School of Medicine, Shanghai, 200072, People’s Republic of China
| | - Lei Li
- National Clinical Research Center for Obstetric & Gynecologic Diseases, Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, People’s Republic of China
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13
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Accolla RP, Liang JP, Lansberry TR, Miravet IL, Loaisiga M, Sardi BL, Stabler CL. Engineering Modular, Oxygen-Generating Microbeads for the In Situ Mitigation of Cellular Hypoxia. Adv Healthc Mater 2023; 12:e2300239. [PMID: 36971050 PMCID: PMC10522802 DOI: 10.1002/adhm.202300239] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Indexed: 03/29/2023]
Abstract
Insufficient oxygenation is a key obstacle in the design of clinically scalable tissue-engineered grafts. In this work, an oxygen-generating composite material, termed OxySite, is created through the encapsulation of calcium peroxide (CaO2 ) within polydimethylsiloxane and formulated into microbeads for ease in tissue integration. Key material parameters of reactant loading, porogen addition, microbead size, and an outer rate-limiting layer are modulated to characterize oxygen generation kinetics and their suitability for cellular applications. In silico models are developed to predict the local impact of different OxySite microbead formulations on oxygen availability within an idealized cellular implant. Promising OxySite microbead variants are subsequently coencapsulated with murine β-cells within macroencapsulation devices, resulting in improved cellular metabolic activity and function under hypoxic conditions when compared to controls. Additionally, the coinjection of optimized OxySite microbeads with murine pancreatic islets within a confined transplant site demonstrates ease of integration and improved primary cell function. These works highlight the broad translatability delivered by this new oxygen-generating biomaterial format, whereby the modularity of the material provides customization of the oxygen source to the specific needs of the cellular implant.
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Affiliation(s)
- Robert P. Accolla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Jia-Pu Liang
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Taylor R. Lansberry
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Irayme Labrada Miravet
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Marlon Loaisiga
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Baltasar Lopez Sardi
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Cherie L. Stabler
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
- Department of Immunology and Pathology, College of Medicine, University of Florida, Gainesville, FL, USA
- University of Florida Diabetes Institute, Gainesville, FL, USA
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14
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Hautanen V, Morikka J, Saarimäki LA, Bisenberger J, Toimela T, Serra A, Greco D. The in vitro immunomodulatory effect of multi-walled carbon nanotubes by multilayer analysis. NANOIMPACT 2023; 31:100476. [PMID: 37437691 DOI: 10.1016/j.impact.2023.100476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/17/2023] [Accepted: 07/04/2023] [Indexed: 07/14/2023]
Abstract
The study of multi-walled carbon nanotube (MWCNT) induced immunotoxicity is crucial for determining hazards posed to human health. MWCNT exposure most commonly occurs via the airways, where macrophages are first line responders. Here we exploit an in vitro assay, measuring dose-dependent secretion of a wide panel of cytokines, as a measure of immunotoxicity following the non-lethal, multi-dose exposure (IC5, IC10 and IC20) to 7 MWCNTs with different intrinsic properties. We find that a tangled structure, and small aspect ratio are key properties predicting MWCNT induced immunotoxicity, mediated predominantly by IL1B cytokine secretion. To assess the mechanism of action giving rise to MWCNT immunotoxicity, transcriptomics analysis was linked to cytokine secretion in a multilayer model established through correlation analysis across exposure concentrations. This reinforced the finding that tangled MWCNTs have greater immunomodulatory potency, displaying enrichment of immune system, signal transduction and pattern recognition associated pathways. Together our results further elucidate how structure, length and aspect ratio, critical intrinsic properties of MWCNTs, are tied to immunotoxicity.
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Affiliation(s)
- Veera Hautanen
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland; Institute of Biotechnology, University of Helsinki, P.O.Box 56, Helsinki, Uusimaa 00014, Finland
| | - Jack Morikka
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland
| | - Laura Aliisa Saarimäki
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland
| | - Jan Bisenberger
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland
| | - Tarja Toimela
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland
| | - Angela Serra
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland; Tampere Institute for Advanced Study, Tampere University, Kalevantie 4, Tampere 33100, Finland
| | - Dario Greco
- Finnish Hub for Development and Validation of Integrated Approaches (FHAIVE), Faculty of Medicine and Health Technology, Tampere University, Arvo Ylpön katu 34, Tampere 33520, Finland; Institute of Biotechnology, University of Helsinki, P.O.Box 56, Helsinki, Uusimaa 00014, Finland; Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Finland.
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15
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Awashra M, Młynarz P. The toxicity of nanoparticles and their interaction with cells: an in vitro metabolomic perspective. NANOSCALE ADVANCES 2023; 5:2674-2723. [PMID: 37205285 PMCID: PMC10186990 DOI: 10.1039/d2na00534d] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 01/27/2023] [Indexed: 05/21/2023]
Abstract
Nowadays, nanomaterials (NMs) are widely present in daily life due to their significant benefits, as demonstrated by their application in many fields such as biomedicine, engineering, food, cosmetics, sensing, and energy. However, the increasing production of NMs multiplies the chances of their release into the surrounding environment, making human exposure to NMs inevitable. Currently, nanotoxicology is a crucial field, which focuses on studying the toxicity of NMs. The toxicity or effects of nanoparticles (NPs) on the environment and humans can be preliminary assessed in vitro using cell models. However, the conventional cytotoxicity assays, such as the MTT assay, have some drawbacks including the possibility of interference with the studied NPs. Therefore, it is necessary to employ more advanced techniques that provide high throughput analysis and avoid interferences. In this case, metabolomics is one of the most powerful bioanalytical strategies to assess the toxicity of different materials. By measuring the metabolic change upon the introduction of a stimulus, this technique can reveal the molecular information of the toxicity induced by NPs. This provides the opportunity to design novel and efficient nanodrugs and minimizes the risks of NPs used in industry and other fields. Initially, this review summarizes the ways that NPs and cells interact and the NP parameters that play a role in this interaction, and then the assessment of these interactions using conventional assays and the challenges encountered are discussed. Subsequently, in the main part, we introduce the recent studies employing metabolomics for the assessment of these interactions in vitro.
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Affiliation(s)
- Mohammad Awashra
- Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University 02150 Espoo Finland
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology Wroclaw Poland
| | - Piotr Młynarz
- Department of Biochemistry, Molecular Biology and Biotechnology, Faculty of Chemistry, Wroclaw University of Science and Technology Wroclaw Poland
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16
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Utispan K, Koontongkaew S, Niyomtham N, Yingyongnarongkul BE. Ethanolic extract of Ocimum sanctum leaf modulates oxidative stress, cell cycle and apoptosis in head and neck cancer cell lines. Heliyon 2023; 9:e15518. [PMID: 37128326 PMCID: PMC10148043 DOI: 10.1016/j.heliyon.2023.e15518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/03/2023] [Accepted: 04/12/2023] [Indexed: 05/03/2023] Open
Abstract
Ocimum sanctum Linn. is a medicinal herb that has cytotoxic effects by inducing oxidative stress in some carcinomas. This study aimed to examine the impact of O. sanctum leaf extract on oxidative stress, cell cycle progression, and apoptosis in cell lines of head and neck squamous cell carcinoma (HNSCC). Isogenic primary (HN18/HN30) and metastatic (HN17/HN31) HNSCC cell lines were used. Preparation of the ethanolic extract of O. sanctum leaf (EEOS) was carried out. HNSCC cell lines were exposed to varying concentrations (0.1-0.8 mg/ml) of EEOS for a duration of 72 h, and the MTT assay was utilized to determine the cytotoxic doses. To assess the impact of EEOS on HNSCC cells, the levels of reactive oxygen species (ROS) and malondialdehyde were measured using a fluorometric method. Flow cytometry was utilized to evaluate effects of EEOS on the cell cycle, DNA damage, and apoptosis in HNSCC cells. Caspase-3 and -9 levels in the EEOS-treated HNSCC cells were measured by ELISA. The chemical components in EEOS were detected using high-performance liquid chromatography-electrospray ionization-time of flight-mass spectrometry. EEOS exhibited cytotoxicity against the HN18, HN17, HN30 and HN31 cells at minimum concentrations of 0.1, 0.3, 0.2 and 0.2 mg/ml, respectively. Treatment with EEOS resulted in a significant increase in ROS levels in HN18 and HN17 cells. Additionally, EEOS significantly induced the levels of malondialdehyde in HN18 and HN31 cells. Moreover, EEOS arrested the cell cycle in HN30 and HN31 cells, and significantly induced DNA damage and apoptosis in the HN18, HN30, and HN31 cells. EEOS selectively increased caspase-9 in the HN18 cells. However, caspase-3 was activated without apoptosis in the EEOS-treated HN17 cells. The constituents of EEOS were identified as rosmarinic acid, caffeic acid, and apigenin. In conclusion, EEOS exhibits various prooxidative and apoptotic effects between HNSCC cells.
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Affiliation(s)
- Kusumawadee Utispan
- Faculty of Dentistry, Thammasat University, Pathum Thani, 12120, Thailand
- Corresponding author.
| | - Sittichai Koontongkaew
- Walailak University International College of Dentistry, Walailak University, Bangkok, 10300, Thailand
| | - Nattisa Niyomtham
- Walailak University International College of Dentistry, Walailak University, Bangkok, 10300, Thailand
| | - Boon-ek Yingyongnarongkul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Ramkhamhaeng University, Bangkok, 10240, Thailand
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17
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Xie D, Deng T, Zhai Z, Qin T, Song C, Xu Y, Sun T. Moschus exerted protective activity against H 2O 2-induced cell injury in PC12 cells through regulating Nrf-2/ARE signaling pathways. Biomed Pharmacother 2023; 159:114290. [PMID: 36708701 DOI: 10.1016/j.biopha.2023.114290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 01/27/2023] Open
Abstract
The pivotal characteristics of Alzheimer's disease (AD) are irreversible memory loss and progressive cognitive decline, eventually causing death from brain failure. In the various proposed hypotheses of AD, oxidative stress is also regarded as a symbolic pathophysiologic cascade contributing to brain diseases. Using Chinese herbal medicine may be beneficial for treating and preventing AD. As a rare and valuable animal medicine, Moschus possesses antioxidant and antiapoptotic efficacy and is extensively applied for treating unconsciousness, stroke, coma, and cerebrovascular diseases. We aim to evaluate whether Moschus protects PC12 cells from hydrogen peroxide (H2O2)-induced cellular injury. The chemical constituents of Moschus are analyzed by GC-MS assay. The cell viability, reactive oxygen species (ROS) levels, mitochondrial membrane potential (MMP) levels, oxidative stress-related indicators, and apoptotic proteins are determined. Through GC-MS analysis, nineteen active contents were identified. The cell viability loss, lactate dehydrogenase releases, MMP levels, ROS productions, and Malondialdehyde (MDA) activities decreased, and BAX, Caspase-3, and Kelch-like ECH-associated protein 1 expression also significantly down-regulated and heme oxygenase 1, nuclear factor erythroid-2-related factor 2 (Nrf-2), and quinine oxidoreductase 1 expression upregulated after pretreatment of Moschus. The result indicated Moschus has neuroprotective activity in relieving H2O2-induced cellular damage, and the potential mechanism might be associated with regulating the Nrf-2/ARE signaling pathway. A more in-depth and comprehensive understanding of Moschus in the pathogenesis of AD will provide a fundamental basis for in vivo AD animal model research, which may be able to provide further insights and new targets for AD therapy.
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Affiliation(s)
- Danni Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Ting Deng
- Jintang Second People' s Hospital, Chengdu 610404, China.
| | - Zhenwei Zhai
- School of Medical Information Engineering, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Tao Qin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Caiyou Song
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Ying Xu
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
| | - Tao Sun
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; School of Medical Information Engineering, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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18
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Placental Mitochondrial Function and Dysfunction in Preeclampsia. Int J Mol Sci 2023; 24:ijms24044177. [PMID: 36835587 PMCID: PMC9963167 DOI: 10.3390/ijms24044177] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
The placenta is a vital organ of pregnancy, regulating adaptation to pregnancy, gestational parent/fetal exchange, and ultimately, fetal development and growth. Not surprisingly, in cases of placental dysfunction-where aspects of placental development or function become compromised-adverse pregnancy outcomes can result. One common placenta-mediated disorder of pregnancy is preeclampsia (PE), a hypertensive disorder of pregnancy with a highly heterogeneous clinical presentation. The wide array of clinical characteristics observed in pregnant individuals and neonates of a PE pregnancy are likely the result of distinct forms of placental pathology underlying the PE diagnosis, explaining why no one common intervention has proven effective in the prevention or treatment of PE. The historical paradigm of placental pathology in PE highlights an important role for utero-placental malperfusion, placental hypoxia and oxidative stress, and a critical role for placental mitochondrial dysfunction in the pathogenesis and progression of the disease. In the current review, the evidence of placental mitochondrial dysfunction in the context of PE will be summarized, highlighting how altered mitochondrial function may be a common feature across distinct PE subtypes. Further, advances in this field of study and therapeutic targeting of mitochondria as a promising intervention for PE will be discussed.
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19
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Zhou W, Zhou W, Bi Y, Zhou Z, Liu Y, Ye J, Lin Z, Xie G, Yuan G, Lian Z, Yao G. Integrative Analysis of Necroptosis-Related Signature for Predicting the Prognosis of Osteosarcoma.. [DOI: 10.21203/rs.3.rs-2241039/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Abstract
Background
Osteosarcoma (OS) is the most common and malignant bone tumor among children and adolescents worldwide. Over decades, clinical treatment for osteosarcoma has proven to be intractable. Novel approaches, such as immunotherapy, face immune escape. Thus, exploring potential therapeutic targets for osteosarcoma is an urgent need.
Method
Gene expression data and clinical information were downloaded from Therapeutically Applicable Research to Generate Effective Treatments (TARGET), Gene Expression Omnibus (GEO), and Univariate Cox regression analysis was used to identify prognostic necroptosis-related genes (NRGs). A non-negative matrix factorization algorithm (NMF) was used to cluster patients into various molecular subgroups with NRGs. We dealt with multi-collinearity with the least absolute shrinkage and selection operator (LASSO). Multivariate Cox regression was used to construct the prediction model that divided OS patients into two risk groups. The model's validity was assessed by time-dependent receiver operating characteristic (ROC) analysis. Different expression genes (DEGs) between these two groups were conducted for functional analysis, including gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses, Gene Set Enrichment Analysis (GSEA), and Gene Set Variation Analysis (GSVA). Eight algorithms were carried out to evaluate the tumor microenvironment. These marker genes on the single-cell transcriptome were further labeled to explore whether their expression was cell-specific.
Results
Based on the model constructed by 5 NRGs (TLR4, STAT5A, IFNGR1, PYGM, CHMP4C), the patients were divided into two risk groups. Patients in the high-risk group suffered a poorer prognosis than those in the low-risk group. The nomogram was constructed and integrated with clinical features and gene signatures, demonstrating better predictive ability in training and testing cohorts. Immune cell infiltrations were highly associated with the risk score generated by Multivariate Cox. All 5 NRGs can be successfully marked on the feature plot of single-cell RNA-Seq, and two NRGs were associated with cell-specific genes of osteosarcoma pluripotency with statistical significance.
Conclusion
This study can provide a reference for diagnosing molecular subtyping and treating patients with OS.
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Affiliation(s)
| | | | | | | | | | | | | | - Gang Xie
- The Second Affiliated Hospital of Shantou University Medical College
| | - Guixin Yuan
- The Second Affiliated Hospital of Shantou University Medical College
| | - Zhen Lian
- The Second Affiliated Hospital of Shantou University Medical College
| | - Guanfeng Yao
- The Second Affiliated Hospital of Shantou University Medical College
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20
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Brandhorst D, Brandhorst H, Acreman S, Johnson PRV. The ischaemic preconditioning paradox and its implications for islet isolation from heart-beating and non heart-beating donors. Sci Rep 2022; 12:19321. [PMID: 36369239 PMCID: PMC9652462 DOI: 10.1038/s41598-022-23862-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022] Open
Abstract
The impact of ischaemia can severely damage procured donor organs for transplantation. The pancreas, and pancreatic islets in particular, is one of the most sensitive tissues towards hypoxia. The present study was aimed to assess the effect of hypoxic preconditioning (HP) performed ex-vivo in islets isolated from heart-beating donor (HBD) and non heart-beating donor (NHBD) rats. After HP purified islets were cultured for 24 h in hypoxia followed by islet characterisation. Post-culture islet yields were significantly lower in sham-treated NHBD than in HBD. This difference was reduced when NHBD islets were preconditioned. Similar results were observed regarding viability, apoptosis and in vitro function. Reactive oxygen species generation after hypoxic culture was significantly enhanced in sham-treated NHBD than in HBD islets. Again, this difference could be diminished through HP. qRT-PCR revealed that HP decreases pro-apoptotic genes but increases HIF-1 and VEGF. However, the extent of reduction and augmentation was always substantially higher in preconditioned NHBD than in HBD islets. Our findings indicate a lower benefit of HBD islets from HP than NHBD islets. The ischaemic preconditioning paradox suggests that HP should be primarily applied to islets from marginal donors. This observation needs evaluation in human islets.
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Affiliation(s)
- Daniel Brandhorst
- Research Group for Islet Transplantation, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK.
| | - Heide Brandhorst
- Research Group for Islet Transplantation, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK
| | - Samuel Acreman
- Research Group for Islet Transplantation, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK
| | - Paul R V Johnson
- Research Group for Islet Transplantation, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, UK
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21
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Zhu X, Trimarco JD, Williams CA, Barrera A, Reddy TE, Heaton NS. ZBTB7A promotes virus-host homeostasis during human coronavirus 229E infection. Cell Rep 2022; 41:111540. [PMID: 36243002 PMCID: PMC9533670 DOI: 10.1016/j.celrep.2022.111540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/24/2022] [Accepted: 09/29/2022] [Indexed: 11/22/2022] Open
Abstract
The cellular fate after infection with human coronaviruses (HCoVs) is typically death. Previous data suggest, however, that the transcriptional state of an individual cell may sometimes allow additional outcomes of infection. Here, to probe the range of interactions a permissive cell type can have with a HCoV, we perform a CRISPR activation screen with HCoV-229E. The screen identified the transcription factor ZBTB7A, which strongly promotes cell survival after infection. Rather than suppressing viral infection, ZBTB7A upregulation allows the virus to induce a persistent infection and homeostatic state with the cell. We also find that control of oxidative stress is a primary driver of cellular survival during HCoV-229E infection. These data illustrate that, in addition to the nature of the infecting virus and the type of cell that it encounters, the cellular gene expression profile prior to infection can affect the eventual fate.
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Affiliation(s)
- Xinyu Zhu
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Joseph D. Trimarco
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA
| | - Courtney A. Williams
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA,Center for Genomic and Computational Biology, Duke University, Durham, NC, USA,Center for Advanced Genomic Technologies, Duke University, Durham, NC, USA
| | - Alejandro Barrera
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA,Center for Genomic and Computational Biology, Duke University, Durham, NC, USA,Center for Advanced Genomic Technologies, Duke University, Durham, NC, USA
| | - Timothy E. Reddy
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA,Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA,Center for Genomic and Computational Biology, Duke University, Durham, NC, USA,Center for Advanced Genomic Technologies, Duke University, Durham, NC, USA,Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Nicholas S. Heaton
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, USA,Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA,Corresponding author
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22
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Roles of RIPK3 in necroptosis, cell signaling, and disease. Exp Mol Med 2022; 54:1695-1704. [PMID: 36224345 PMCID: PMC9636380 DOI: 10.1038/s12276-022-00868-z] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/14/2022] [Accepted: 08/01/2022] [Indexed: 12/29/2022] Open
Abstract
Receptor-interacting protein kinase-3 (RIPK3, or RIP3) is an essential protein in the "programmed" and "regulated" cell death pathway called necroptosis. Necroptosis is activated by the death receptor ligands and pattern recognition receptors of the innate immune system, and the findings of many reports have suggested that necroptosis is highly significant in health and human disease. This significance is largely because necroptosis is distinguished from other modes of cell death, especially apoptosis, in that it is highly proinflammatory given that cell membrane integrity is lost, triggering the activation of the immune system and inflammation. Here, we discuss the roles of RIPK3 in cell signaling, along with its role in necroptosis and various pathways that trigger RIPK3 activation and cell death. Lastly, we consider pathological situations in which RIPK3/necroptosis may play a role.
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23
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Jiang L, Liu Y, Su X, Wang J, Zhao Y, Tumbath S, Kilgore JA, Williams NS, Chen Y, Wang X, Mendonca MS, Lu T, Fu YX, Huang X. KP372-1-Induced AKT Hyperactivation Blocks DNA Repair to Synergize With PARP Inhibitor Rucaparib via Inhibiting FOXO3a/GADD45α Pathway. Front Oncol 2022; 12:976292. [PMID: 36203459 PMCID: PMC9530825 DOI: 10.3389/fonc.2022.976292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) have exhibited great promise in the treatment of tumors with homologous recombination (HR) deficiency, however, PARPi resistance, which ultimately recovers DNA repair and cell progress, has become an enormous clinical challenge. Recently, KP372-1 was identified as a novel potential anticancer agent that targeted the redox enzyme, NAD(P)H:quinone oxidoreductase 1 (NQO1), to induce extensive reactive oxygen species (ROS) generation that amplified DNA damage, leading to cancer cell death. To overcome PARPi resistance and expand its therapeutic utility, we investigated whether a combination therapy of a sublethal dose of KP372-1 with a nontoxic dose of PARPi rucaparib would synergize and enhance lethality in NQO1 over-expressing cancers. We reported that the combination treatment of KP372-1 and rucaparib induced a transient and dramatic AKT hyperactivation that inhibited DNA repair by regulating FOXO3a/GADD45α pathway, which enhanced PARPi lethality and overcame PARPi resistance. We further found that PARP inhibition blocked KP372-1-induced PARP1 hyperactivation to reverse NAD+/ATP loss that promoted Ca2+-dependent autophagy and apoptosis. Moreover, pretreatment of cells with BAPTA-AM, a cytosolic Ca2+ chelator, dramatically rescued KP372-1- or combination treatment-induced lethality and significantly suppressed PAR formation and γH2AX activation. Finally, we demonstrated that this combination therapy enhanced accumulation of both agents in mouse tumor tissues and synergistically suppressed tumor growth in orthotopic pancreatic and non-small-cell lung cancer xenograft models. Together, our study provides novel preclinical evidence for new combination therapy in NQO1+ solid tumors that may broaden the clinical utility of PARPi.
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Affiliation(s)
- Lingxiang Jiang
- Department of Radiation Oncology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Yingchun Liu
- Department of Radiation Oncology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
- Laboratory of Stem Cell Engineering and Regenerative Medicine, Fujian Province University/School of Basic Medical Sciences, Fujian Medical University, Fujian, China
| | - Xiaolin Su
- Departments of Biochemistry and Molecular Biology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Jiangwei Wang
- Department of Radiation Oncology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ye Zhao
- Departments of Biochemistry and Molecular Biology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Soumya Tumbath
- Department of Radiation Oncology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Jessica A. Kilgore
- Department of Biochemistry, Simmons Comprehensive Cancer Center, University of Texas (UT) Southwestern Medical Center, Dallas, TX, United States
| | - Noelle S. Williams
- Department of Biochemistry, Simmons Comprehensive Cancer Center, University of Texas (UT) Southwestern Medical Center, Dallas, TX, United States
| | - Yaomin Chen
- Indiana University Health Pathology Laboratory, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou, China
| | - Marc S. Mendonca
- Department of Radiation Oncology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Tao Lu
- Department of Pharmacology and Toxicology, Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Yang-Xin Fu
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Xiumei Huang
- Department of Radiation Oncology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN, United States
- *Correspondence: Xiumei Huang,
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24
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Zhan Y, Xu D, Tian Y, Qu X, Sheng M, Lin Y, Ke M, Jiang L, Xia Q, Kaldas FM, Farmer DG, Ke B. Novel role of macrophage TXNIP-mediated CYLD-NRF2-OASL1 axis in stress-induced liver inflammation and cell death. JHEP Rep 2022; 4:100532. [PMID: 36035360 PMCID: PMC9404660 DOI: 10.1016/j.jhepr.2022.100532] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 06/04/2022] [Accepted: 06/25/2022] [Indexed: 11/16/2022] Open
Abstract
Background & Aims The stimulator of interferon genes (STING)/TANK-binding kinase 1 (TBK1) pathway is vital in mediating innate immune and inflammatory responses during oxidative/endoplasmic reticulum (ER) stress. However, it remains unknown whether macrophage thioredoxin-interacting protein (TXNIP) may regulate TBK1 function and cell death pathways during oxidative/ER stress. Methods A mouse model of hepatic ischaemia/reperfusion injury (IRI), the primary hepatocytes, and bone marrow-derived macrophages were used in the myeloid-specific TXNIP knockout (TXNIPM-KO) and TXNIP-proficient (TXNIPFL/FL) mice. Results The TXNIPM-KO mice were resistant to ischaemia/reperfusion (IR) stress-induced liver damage with reduced serum alanine aminotransferase (ALT)/aspartate aminotransferase (AST) levels, macrophage/neutrophil infiltration, and pro-inflammatory mediators compared with the TXNIPFL/FL controls. IR stress increased TXNIP, p-STING, and p-TBK1 expression in ischaemic livers. However, TXNIPM-KO inhibited STING, TBK1, interferon regulatory factor 3 (IRF3), and NF-κB activation with interferon-β (IFN-β) expression. Interestingly, TXNIPM-KO augmented nuclear factor (erythroid-derived 2)-like 2 (NRF2) activity, increased antioxidant gene expression, and reduced macrophage reactive oxygen species (ROS) production and hepatic apoptosis/necroptosis in IR-stressed livers. Mechanistically, macrophage TXNIP deficiency promoted cylindromatosis (CYLD), which colocalised and interacted with NADPH oxidase 4 (NOX4) to enhance NRF2 activity by deubiquitinating NOX4. Disruption of macrophage NRF2 or its target gene 2',5' oligoadenylate synthetase-like 1 (OASL1) enhanced Ras GTPase-activating protein-binding protein 1 (G3BP1) and TBK1-mediated inflammatory response. Notably, macrophage OASL1 deficiency induced hepatocyte apoptotic peptidase activating factor 1 (APAF1), cytochrome c, and caspase-9 activation, leading to increased caspase-3-initiated apoptosis and receptor-interacting serine/threonine-protein kinase 3 (RIPK3)-mediated necroptosis. Conclusions Macrophage TXNIP deficiency enhances CYLD activity and activates the NRF2-OASL1 signalling, controlling IR stress-induced liver injury. The target gene OASL1 regulated by NRF2 is crucial for modulating STING-mediated TBK1 activation and Apaf1/cytochrome c/caspase-9-triggered apoptotic/necroptotic cell death pathway. Our findings underscore a novel role of macrophage TXNIP-mediated CYLD-NRF2-OASL1 axis in stress-induced liver inflammation and cell death, implying the potential therapeutic targets in liver inflammatory diseases. Lay summary Liver inflammation and injury induced by ischaemia and reperfusion (the absence of blood flow to the liver tissue followed by the resupply of blood) is a significant cause of hepatic dysfunction and failure following liver transplantation, resection, and haemorrhagic shock. Herein, we uncover an underlying mechanism that contributes to liver inflammation and cell death in this setting and could be a therapeutic target in stress-induced liver inflammatory injury.
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Key Words
- ALT, alanine aminotransferase
- APAF1, apoptotic peptidase activating factor 1
- ASK1, apoptosis signal-regulating kinase 1
- AST, aspartate aminotransferase
- Apoptosis
- BMM, bone marrow-derived macrophage
- CXCL-10, C-X-C motif chemokine ligand 10
- CYLD, cyclindromatosis
- ChIP, chromatin immunoprecipitation
- DAMP, damage-associated molecular pattern
- DUB, deubiquitinating enzyme
- ER, endoplasmic reticulum
- ES, embryonic stem
- G3BP1
- G3BP1, Ras GTPase-activating protein-binding protein 1
- GCLC, glutamate-cysteine ligase catalytic subunit
- GCLM, glutamate-cysteine ligase regulatory subunit
- IHC, immunohistochemistry
- INF-β, interferon-β
- IR, ischaemia/reperfusion
- IRF3
- IRF3, interferon regulatory factor 3
- IRF7, IFN-regulating transcription factor 7
- IRI, ischaemia/reperfusion injury
- Innate immunity
- KO, knockout
- LPS, lipopolysaccharide
- Liver inflammation
- Lyz2, Lysozyme 2
- MCP-1, monocyte chemoattractant protein 1
- NOX2, NADPH oxidase 2
- NOX4, NADPH oxidase 4
- NQO1, NAD(P)H quinone dehydrogenase 1
- NRF2, nuclear factor (erythroid-derived 2)-like 2
- NS, non-specific
- Necroptosis
- OASL1, 2′,5′oligoadenylate synthetase-like 1
- PAMP, pathogen-derived molecular pattern
- RIPK3, receptor-interacting serine/threonine-protein kinase 3
- ROS, reactive oxygen species
- STING
- STING, stimulator of interferon genes
- TBK1, TANK-binding kinase 1
- TLR4, Toll-like receptor 4
- TNF-α, tumour necrosis factor-alpha
- TRX, thioredoxin
- TSS, transcription start sites
- TXNIP, thioredoxin-interacting protein
- TXNIPFL/FL, floxed TXNIP
- TXNIPM-KO, myeloid-specific TXNIP KO
- UTR, untranslated region
- sALT, serum ALT
- sAST, serum AST
- siRNA, small interfering RNA
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Affiliation(s)
- Yongqiang Zhan
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Shenzhen University, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Dongwei Xu
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Liver Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yizhu Tian
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Xiaoye Qu
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
- Department of Liver Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Mingwei Sheng
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Yuanbang Lin
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Michael Ke
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Longfeng Jiang
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Qiang Xia
- Department of Liver Surgery, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Fady M. Kaldas
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Douglas G. Farmer
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Bibo Ke
- The Dumont-UCLA Transplant Center, Division of Liver and Pancreas Transplantation, Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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25
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Zamani Rarani F, Zamani Rarani M, Hamblin MR, Rashidi B, Hashemian SMR, Mirzaei H. Comprehensive overview of COVID-19-related respiratory failure: focus on cellular interactions. Cell Mol Biol Lett 2022; 27:63. [PMID: 35907817 PMCID: PMC9338538 DOI: 10.1186/s11658-022-00363-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 07/06/2022] [Indexed: 01/08/2023] Open
Abstract
The pandemic outbreak of coronavirus disease 2019 (COVID-19) has created health challenges in all parts of the world. Understanding the entry mechanism of this virus into host cells is essential for effective treatment of COVID-19 disease. This virus can bind to various cell surface molecules or receptors, such as angiotensin-converting enzyme 2 (ACE2), to gain cell entry. Respiratory failure and pulmonary edema are the most important causes of mortality from COVID-19 infections. Cytokines, especially proinflammatory cytokines, are the main mediators of these complications. For normal respiratory function, a healthy air-blood barrier and sufficient blood flow to the lungs are required. In this review, we first discuss airway epithelial cells, airway stem cells, and the expression of COVID-19 receptors in the airway epithelium. Then, we discuss the suggested molecular mechanisms of endothelial dysfunction and blood vessel damage in COVID-19. Coagulopathy can be caused by platelet activation leading to clots, which restrict blood flow to the lungs and lead to respiratory failure. Finally, we present an overview of the effects of immune and non-immune cells and cytokines in COVID-19-related respiratory failure.
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Affiliation(s)
- Fahimeh Zamani Rarani
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Zamani Rarani
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028 South Africa
| | - Bahman Rashidi
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyed Mohammad Reza Hashemian
- Chronic Respiratory Diseases Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Mirzaei
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, IR Iran
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26
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Bhattacharya S, Bhattacharya K, Xavier VJ, Ziarati A, Picard D, Bürgi T. The Atomically Precise Gold/Captopril Nanocluster Au 25(Capt) 18 Gains Anticancer Activity by Inhibiting Mitochondrial Oxidative Phosphorylation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:29521-29536. [PMID: 35729793 PMCID: PMC9266621 DOI: 10.1021/acsami.2c05054] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Atomically precise gold nanoclusters (AuNCs) are an emerging class of quantum-sized nanomaterials with well-defined molecular structures and unique biophysical properties, rendering them highly attractive for biological applications. We set out to study the impact of different ligand shells of atomically similar nanoclusters on cellular recognition and response. To understand the effects of atomically precise nanoclusters with identical composition on cells, we selected two different water-soluble gold nanoclusters protected with captopril (Capt) and glutathione (GSH): Au25(Capt)18 (CNC) and Au25(GSH)18 (GNC), respectively. We demonstrated that a change of the ligand of the cluster completely changes its biological functions. Whereas both nanoclusters are capable of internalization, only CNC exhibits remarkable cytotoxicity, more specifically on cancer cells. CNC shows enhanced cytotoxicity by inhibiting the OXPHOS of mitochondria, possibly by inhibiting the ATP synthase complex of the electron transport chain (ETC), and by initiating the leakage of electrons into the mitochondrial lumen. The resulting increase in both mitochondrial and total cellular ROS triggers cell death indicated by the appearance of cellular markers of apoptosis. Remarkably, this effect of nanoclusters is independent of any external light source excitation. Our findings point to the prevailing importance of the ligand shell for applications of atomically precise nanoclusters in biology and medicine.
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Affiliation(s)
- Sarita
Roy Bhattacharya
- Department
of Physical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Kaushik Bhattacharya
- Department
of Molecular and Cellular Biology, University
of Geneva, Sciences III, Geneva 1205, Switzerland
| | - Vanessa Joanne Xavier
- Department
of Molecular and Cellular Biology, University
of Geneva, Sciences III, Geneva 1205, Switzerland
| | - Abolfazl Ziarati
- Department
of Physical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
| | - Didier Picard
- Department
of Molecular and Cellular Biology, University
of Geneva, Sciences III, Geneva 1205, Switzerland
| | - Thomas Bürgi
- Department
of Physical Chemistry, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva, Switzerland
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27
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Theranostic Potentials of Gold Nanomaterials in Hematological Malignancies. Cancers (Basel) 2022; 14:cancers14133047. [PMID: 35804818 PMCID: PMC9264814 DOI: 10.3390/cancers14133047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/03/2022] [Accepted: 06/17/2022] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Hematological malignancies (HMs) cover 50% of all malignancies, and people of all ages can be affected by these deadly diseases. In many cases, conventional diagnostic tools fail to diagnose HMs at an early stage, due to heterogeneity and the long-term indolent phase of HMs. Therefore, many patients start their treatment at the late stage of HMs and have poor survival. Gold nanomaterials (GNMs) have shown promise as a cancer theranostic agent. GNMs are 1 nm to 100 nm materials having magnetic resonance and surface-plasmon-resonance properties. GNMs conjugated with antibodies, nucleic acids, peptides, photosensitizers, chemotherapeutic drugs, synthetic-drug candidates, bioactive compounds, and other theranostic biomolecules may enhance the efficacy and efficiency of both traditional and advanced theranostic approaches to combat HMs. Abstract Hematological malignancies (HMs) are a heterogeneous group of blood neoplasia generally characterized by abnormal blood-cell production. Detection of HMs-specific molecular biomarkers (e.g., surface antigens, nucleic acid, and proteomic biomarkers) is crucial in determining clinical states and monitoring disease progression. Early diagnosis of HMs, followed by an effective treatment, can remarkably extend overall survival of patients. However, traditional and advanced HMs’ diagnostic strategies still lack selectivity and sensitivity. More importantly, commercially available chemotherapeutic drugs are losing their efficacy due to adverse effects, and many patients develop resistance against these drugs. To overcome these limitations, the development of novel potent and reliable theranostic agents is urgently needed to diagnose and combat HMs at an early stage. Recently, gold nanomaterials (GNMs) have shown promise in the diagnosis and treatment of HMs. Magnetic resonance and the surface-plasmon-resonance properties of GNMs have made them a suitable candidate in the diagnosis of HMs via magnetic-resonance imaging and colorimetric or electrochemical sensing of cancer-specific biomarkers. Furthermore, GNMs-based photodynamic therapy, photothermal therapy, radiation therapy, and targeted drug delivery enhanced the selectivity and efficacy of anticancer drugs or drug candidates. Therefore, surface-tuned GNMs could be used as sensitive, reliable, and accurate early HMs, metastatic HMs, and MRD-detection tools, as well as selective, potent anticancer agents. However, GNMs may induce endothelial leakage to exacerbate cancer metastasis. Studies using clinical patient samples, patient-derived HMs models, or healthy-animal models could give a precise idea about their theranostic potential as well as biocompatibility. The present review will investigate the theranostic potential of vectorized GNMs in HMs and future challenges before clinical theranostic applications in HMs.
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28
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Bai J, Tan R, An Z, Xu Y. Quantitative estimation of intracellular oxidative stress in human tissues. Brief Bioinform 2022; 23:6599072. [PMID: 35653708 PMCID: PMC9294418 DOI: 10.1093/bib/bbac206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 11/18/2022] Open
Abstract
Oxidative stress is known to be involved in and possibly a key driver of the development of numerous chronic diseases, including cancer. It is highly desired to have a capability to reliably estimate the level of intracellular oxidative stress as it can help to identify functional changes and disease phenotypes associated with such a stress, but the problem proves to be very challenging. We present a novel computational model for quantitatively estimating the level of oxidative stress in tissues and cells based on their transcriptomic data. The model consists of (i) three sets of marker genes found to be associated with the production of oxidizing molecules, the activated antioxidation programs and the intracellular stress attributed to oxidation, respectively; (ii) three polynomial functions defined over the expression levels of the three gene sets are developed aimed to capture the total oxidizing power, the activated antioxidation capacity and the oxidative stress level, respectively, with their detailed parameters estimated by solving an optimization problem and (iii) the optimization problem is so formulated to capture the relevant known insights such as the oxidative stress level generally goes up from normal to chronic diseases and then to cancer tissues. Systematic assessments on independent datasets indicate that the trained predictor is highly reliable and numerous insights are made based on its application results to samples in the TCGA, GTEx and GEO databases.
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Affiliation(s)
- Jun Bai
- Cancer Systems Biology Center, China-Japan Union Hospital of Jilin University, Jilin University, Changchun, China.,School of Artificial Intelligence, Jilin University, Changchun, China
| | - Renbo Tan
- Cancer Systems Biology Center, China-Japan Union Hospital of Jilin University, Jilin University, Changchun, China.,College of Computer Science and Technology, Jilin University, Changchun, China
| | - Zheng An
- Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology, and Institute of Bioinformatics, the University of Georgia, Athens, GA, USA
| | - Ying Xu
- Cancer Systems Biology Center, China-Japan Union Hospital of Jilin University, Jilin University, Changchun, China.,College of Computer Science and Technology, Jilin University, Changchun, China.,Computational Systems Biology Lab, Department of Biochemistry and Molecular Biology, and Institute of Bioinformatics, the University of Georgia, Athens, GA, USA
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29
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Kılınç N, Onbaşılar M, Çayır A. Evaluation of circulating cell-free nucleic acids in health workers occupationally exposed to ionizing radiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:40543-40549. [PMID: 35083692 DOI: 10.1007/s11356-022-18828-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Radiology workers might constantly be exposed to low-dose ionizing radiation due to their profession. Low doses of radiation in a short exposure time have the potential to alter the genome, which might potentially lead to diseases. The main objective of this study was to determine whether the amount of cell-free nucleic acids in plasma samples of radiation-exposed workers was different from the general public, in other words, non-exposed individuals. In this context, we investigated the association between radiation exposure and cell-free nucleic acids concentration by using radiation exposure parameters. The study consisted of 40 radiology workers and 40 individuals who were not exposed to ionizing radiation. The plasma concentrations of cell-free DNA, RNA, and miRNA were measured fluorometrically. We found that the ccfRNA concentration of the radiation-exposed group was significantly different from that of the non-exposed group (p = 0.0001). However, there are no differences between both groups in terms of ccfDNA and ccfmiRNA concentration. The concentration of ccfDNA is significantly correlated with working time in the fluoroscopy field (p < 0.05). We found that the concentration of ccfmiRNA was significantly correlated with working time in plain radiography (p < 0.01) and computed tomography (p < 0.05) and with total working time (p < 0.01). Similarly, the concentrations of ccfRNA were significantly correlated with working time in computed tomography (p < 0.01) and with the total working time (p < 0.05) of the workers. We found that imaging number in computed tomography significantly altered the level of ccfRNA (p = 0.006) and that working time in the computed tomography field significantly affected the ccfRNA concentration (p = 0.03, R2 = 0.36 for model). Finally, we determined that total working time was significantly associated with total ccfRNA concentration (p < 0.05, R2 = 0.25 for model). In conclusion, total RNA measured in radiation-exposed workers has the potential to predict the radiation exposure risk. Furthermore, total working time and working time in the tomography field significantly alter the level of free nucleic acids.
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Affiliation(s)
- Nihal Kılınç
- Medical Pathology, Faculty of Medicine, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Mehmet Onbaşılar
- School of Graduate Studies, Canakkale Onsekiz Mart University, Canakkale, Turkey
| | - Akın Çayır
- Vocational School of Health Services, Canakkale Onsekiz Mart University, Canakkale, Turkey.
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C-Reactive Protein and High-Sensitive Cardiac Troponins Correlate with Oxidative Stress in Valvular Heart Disease Patients. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5029853. [PMID: 35535358 PMCID: PMC9078810 DOI: 10.1155/2022/5029853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/03/2022] [Accepted: 04/11/2022] [Indexed: 12/19/2022]
Abstract
Background. Valvular heart disease (VHD) is a major contributor to loss of physical function and longevity. Oxidative stress is one of the key causative factors involved in heart disease including VHD. Here, we aimed to illuminate the role and relation of oxidative stress to the VHD risk markers in the human population. Materials and Methods. 150 VHD patients and 103 healthy individuals as control were selected for the study and were divided into three groups: the aortic valve, mitral valve, and combined disease based on valvular calcification. Results. Our results demonstrated enhanced oxidative stress in the VHD condition, as we found elevated levels of reactive oxygen species (ROS) at the serum, supported by an increased level of thiobarbituric acid reactive substances (TBARs) in the cardiac valvular tissues of the VHD patients. In contrast, we experienced declined antioxidants including Super Oxide Dismutase (SOD), catalase (CAT), and peroxidase (POD) activities. Concurrently, increasing levels of C-reactive protein (CRP), high-sensitivity cardiac troponin I (hs-cTnI), and high-sensitivity cardiac troponin T (hs-cTnT) were detected in the aortic, mitral, and combined disease condition, suggesting a key association of oxidative stress to VHD conditions. Furthermore, regression analysis validated a key association between the impairment of the redox system (ROS and antioxidant enzyme activities) and VHD condition. Conclusion. Taken together, dysregulated oxidative stress contributes to the progression of VHD via positively correlating with CRP, hs-TnI, and hs-TnT level.
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Effect of Three Chlorhexidine-Based Mouthwashes on Human Gingival Fibroblasts: An In Vitro Study. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12052417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mouthwashes containing chlorhexidine (CHX) are deemed to be associated with dose-dependent side effects, including burning sensation and taste alteration. To overcome these drawbacks, mouthwashes with CHX at lower concentrations with or without adjunctive agents are proposed. The aim of this in vitro study was to investigate the effects of three CHX-based mouthwashes on human gingival fibroblasts (HGFs). After 3 days of cell culture, groups were randomly treated for 30 s, 60 s or 120 s with (a) CHX 0.05% in combination with cetylpyridnium chloride (CPC) 0.05%; (b) CHX 0.1%; (c) CHX 0.2%; or (d) NaCl as control. Cell viability, cytotoxicity and apoptosis were evaluated at 2 h, 3 days and 6 days after the exposure to the different solutions. Similar cell viability values were found among the test groups at all time points. At day 0, higher cytotoxicity was measured in the group treated with CHX 0.02%, in particular after long application time (120 s), while no significant difference was found between CHX + CPC and the control group. All the investigated mouthwashes were well tolerated by HGF cells for the tested application times. The highest cytotoxic effect was observed for CHX 0.2%; therefore, clinicians should consider limiting its usage to carefully selected clinical situations.
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Luke CJ, Markovina S, Good M, Wight IE, Thomas BJ, Linneman JM, Lanik WE, Koroleva O, Coffman MR, Miedel MT, Gong Q, Andress A, Campos Guerrero M, Wang S, Chen L, Beatty WL, Hausmann KN, White FV, Fitzpatrick JAJ, Orvedahl A, Pak SC, Silverman GA. Lysoptosis is an evolutionarily conserved cell death pathway moderated by intracellular serpins. Commun Biol 2022; 5:47. [PMID: 35022507 PMCID: PMC8755814 DOI: 10.1038/s42003-021-02953-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/07/2021] [Indexed: 01/02/2023] Open
Abstract
Lysosomal membrane permeabilization (LMP) and cathepsin release typifies lysosome-dependent cell death (LDCD). However, LMP occurs in most regulated cell death programs suggesting LDCD is not an independent cell death pathway, but is conscripted to facilitate the final cellular demise by other cell death routines. Previously, we demonstrated that Caenorhabditis elegans (C. elegans) null for a cysteine protease inhibitor, srp-6, undergo a specific LDCD pathway characterized by LMP and cathepsin-dependent cytoplasmic proteolysis. We designated this cell death routine, lysoptosis, to distinguish it from other pathways employing LMP. In this study, mouse and human epithelial cells lacking srp-6 homologues, mSerpinb3a and SERPINB3, respectively, demonstrated a lysoptosis phenotype distinct from other cell death pathways. Like in C. elegans, this pathway depended on LMP and released cathepsins, predominantly cathepsin L. These studies suggested that lysoptosis is an evolutionarily-conserved eukaryotic LDCD that predominates in the absence of neutralizing endogenous inhibitors.
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Affiliation(s)
- Cliff J Luke
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA.
- Siteman Cancer Center, and Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA.
| | - Stephanie Markovina
- Siteman Cancer Center, and Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
- Radiation Oncology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Misty Good
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Ira E Wight
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Brian J Thomas
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - John M Linneman
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Wyatt E Lanik
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Olga Koroleva
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Maggie R Coffman
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Mark T Miedel
- Department of Computational and Systems biology, Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Qingqing Gong
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Arlise Andress
- Radiation Oncology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Marlene Campos Guerrero
- Radiation Oncology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Songyan Wang
- Radiation Oncology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - LiYun Chen
- Radiation Oncology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Wandy L Beatty
- Molecular Microbiology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Kelsey N Hausmann
- Molecular Microbiology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Frances V White
- Department of Pathology and Immunology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - James A J Fitzpatrick
- Cell Biology and Physiology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
- Neuroscience, and Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Anthony Orvedahl
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Stephen C Pak
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA
| | - Gary A Silverman
- Departments of Pediatrics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA.
- Siteman Cancer Center, and Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA.
- Cell Biology and Physiology, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA.
- Genetics, Washington University School of Medicine and the Children's Discovery Institute of St. Louis Children's Hospital, St. Louis, MO, USA.
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Brandhorst D, Brandhorst H, Lee Layland S, Acreman S, Schenke-Layland K, Johnson PR. Basement membrane proteins improve human islet survival in hypoxia: Implications for islet inflammation. Acta Biomater 2022; 137:92-102. [PMID: 34653695 DOI: 10.1016/j.actbio.2021.10.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 12/25/2022]
Abstract
Enzymatic digestion of the pancreas during islet isolation is associated with disintegration of the islet basement membrane (IBM) that can cause reduction of functional and morphological islet integrity. Attempts to re-establish IBM by coating the surface of culture vessels with various IBM proteins (IBMP) have resulted in loss of islet phenotype and function. This study investigated the capability of Collagen-IV, Laminin-521 and Nidogen-1, utilised as single or combined media supplements, to protect human islets cultured in hypoxia. When individually supplemented to media, all IBMP significantly improved islet survival and in-vitro function, finally resulting in as much as a two-fold increase of islet overall survival. In contrast, combining IBMP enhanced the production of chemokines and reactive oxygen species diminishing all positive effects of individually added IBMP. This impact was concentration-dependent and concerned nearly all parameters of islet integrity. Predictive extrapolation of these findings to data from 116 processed human pancreases suggests that more than 90% of suboptimal pancreases could be rescued for clinical islet transplantation increasing the number of transplantable preparations from actual 25 to 40 when adding Nidogen-1 to pretransplant culture. This study suggests that media supplementation with essential IBMP protects human islets from hypoxia. Amongst those, certain IBMP may be incompatible when combined or applied at higher concentrations. STATEMENT OF SIGNIFICANCE: Pancreatic islet transplantation is a minimally-invasive treatment that can reverse type 1 diabetes in certain patients. It involves infusing of insulin-producing cell-clusters (islets) from donor pancreases. Unfortunately, islet extraction is associated with damage of the islet basement membrane (IBM) causing reduced islet function and cell death. Attempts to re-establish the IBM by coating the surface of culture vessels with IBM proteins (IBMP) have been unsuccessful. Instead, we dissolved the most relevant IBM components Collagen-IV, Laminin-521 and Nidogen-1 in media routinely used for clinical islet culture and transplantation. We found human islet survival and function was substantially improved by IBMP, particularly Nidogen-1, when exposed to a hypoxic environment as found in vivo. We also investigated IBMP combinations. Our present findings have important clinical implications.
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Masomi-Bornwasser J, Kurz E, Frenz C, Schmitt J, Wesp DMA, König J, Lotz J, Ringel F, Kerz T, Krenzlin H, Keric N. The Influence of Oxidative Stress on Neurological Outcomes in Spontaneous Intracerebral Hemorrhage. Biomolecules 2021; 11:1615. [PMID: 34827613 PMCID: PMC8615528 DOI: 10.3390/biom11111615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/25/2021] [Accepted: 10/28/2021] [Indexed: 11/17/2022] Open
Abstract
Spontaneous intracerebral hemorrhage (ICH) causes, besides the primary brain injury, a secondary brain injury (SBI), which is induced, amongst other things, by oxidative stress (OS) and inflammation, determining the patient's outcome. This study aims to assess the impact of OS in plasma and cerebrospinal fluid (CSF) on clinical outcomes in patients with ICH. A total of 19 ICH (volume > 30 cc) patients and 29 control patients were included. From day one until seven, blood and CSF samples were obtained, and ICH volume was calculated. OS markers, like malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione-sulfhydryl (GSH), and the total antioxidant status (TAS) were measured. Clinical data on treatment and outcome were determined. Patients with mRS ≤ 4 showed significantly elevated SOD and GSH-Px levels in plasma compared to patients with poor CO (p = 0.004; p = 0.002). Initial increased TAS in plasma and increased MDA in CSF were linked to an unfavorable outcome after six months (p = 0.06, r = 0.45; p = 0.05, r = 0.44). A higher ICH volume was associated with a worse outcome at week six (p = 0.04, r = 0.47). OS plays a significant role in SBI. Larger ICHs, elevated MDA in CSF, and TAS in plasma were associated with a detrimental outcome, whereas higher plasma-SOD and -GSH-Px were associated with a favorable outcome.
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Affiliation(s)
- Julia Masomi-Bornwasser
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Elena Kurz
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Christina Frenz
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Jan Schmitt
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Dominik M. A. Wesp
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Jochem König
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany;
| | - Johannes Lotz
- Institute of Clinical and Laboratory Medicine, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany;
| | - Florian Ringel
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Thomas Kerz
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Harald Krenzlin
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
| | - Naureen Keric
- Department of Neurosurgery, University Medical Center of the Johannes Gutenberg University, 55131 Mainz, Germany; (E.K.); (C.F.); (J.S.); (D.M.A.W.); (F.R.); (T.K.); (H.K.); (N.K.)
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Czarnecka-Czapczyńska M, Aebisher D, Oleś P, Sosna B, Krupka-Olek M, Dynarowicz K, Latos W, Cieślar G, Kawczyk-Krupka A. The role of photodynamic therapy in breast cancer - A review of in vitro research. Biomed Pharmacother 2021; 144:112342. [PMID: 34678730 DOI: 10.1016/j.biopha.2021.112342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/09/2021] [Accepted: 10/13/2021] [Indexed: 01/04/2023] Open
Abstract
Breast cancer is the most common cancer affecting women and the incidence of occurrence is increasing. Currently, there are many methods of detecting and treating breast cancer. Some treatments have a number of side effects. Photodynamic therapy (PDT) is a minimally invasive method of treatment which uses monochromatic light of low to medium energy to excite previously applied photosensitizers (PS) for ROS production. The purpose of this article is to present a general overview of the use of PDT in in vitro studies of various cancer cell lines. A literature search for articles corresponding to the topic of this review was performed using the PubMed and Scopus databases using the following keywords: 'photodynamic therapy', 'breast cancer', and 'photosensitizer(s).' Much of the reviewed literature is based on evaluations of the cytotoxic potential of various PSs, particularly against the MCF-7 cell line, and enhancement of PDT potential with nanotechnology. Research on photodynamic effects in vitro may be helpful in the pre-clinical search for optimal methods for in vivo clinical treatment.
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Affiliation(s)
- Magdalena Czarnecka-Czapczyńska
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | - David Aebisher
- Department of Photomedicine and Physical Chemistry, Medical College of The University of Rzeszów, Rzeszów, Poland
| | - Piotr Oleś
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | - Barbara Sosna
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | - Magdalena Krupka-Olek
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | | | - Wojciech Latos
- Specialist Hospital No. 2, Department of Internal Diseases, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Batorego Street 15, 41-902 Bytom, Poland
| | - Grzegorz Cieślar
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland
| | - Aleksandra Kawczyk-Krupka
- Department of Internal Medicine, Angiology and Physical Medicine, Center for Laser Diagnostics and Therapy, Medical University of Silesia in Katowice, Batorego 15 Street, 41-902 Bytom, Poland.
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Targeting the complex I and III of mitochondrial electron transport chain as a potentially viable option in liver cancer management. Cell Death Discov 2021; 7:293. [PMID: 34650055 PMCID: PMC8516882 DOI: 10.1038/s41420-021-00675-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 12/15/2022] Open
Abstract
Liver cancer is one of the most common and lethal types of oncological disease in the world, with limited treatment options. New treatment modalities are desperately needed, but their development is hampered by a lack of insight into the underlying molecular mechanisms of disease. It is clear that metabolic reprogramming in mitochondrial function is intimately linked to the liver cancer process, prompting the possibility to explore mitochondrial biochemistry as a potential therapeutic target. Here we report that depletion of mitochondrial DNA, pharmacologic inhibition of mitochondrial electron transport chain (mETC) complex I/complex III, or genetic of mETC complex I restricts cancer cell growth and clonogenicity in various preclinical models of liver cancer, including cell lines, mouse liver organoids, and murine xenografts. The restriction is linked to the production of reactive oxygen species, apoptosis induction and reduced ATP generation. As a result, our findings suggest that the mETC compartment of mitochondria could be a potential therapeutic target in liver cancer.
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Nene LC, Nyokong T. Photo-sonodynamic combination activity of cationic morpholino-phthalocyanines conjugated to nitrogen and nitrogen-sulfur doped graphene quantum dots against MCF-7 breast cancer cell line in vitro. Photodiagnosis Photodyn Ther 2021; 36:102573. [PMID: 34628070 DOI: 10.1016/j.pdpdt.2021.102573] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 09/23/2021] [Accepted: 10/04/2021] [Indexed: 01/19/2023]
Abstract
In this work, we explore the reactive oxygen species (ROS) generation abilities of cationic morpholino-substituted-phthalocyanine (Pc) conjugated to nitrogen (NGQDs) and nitrogen-sulfur (NSGQDs) doped-graphene quantum dots upon irradiation with light for photodynamic therapy (PDT), ultrasound for sonodynamic therapy (SDT) and the combination of both in photo-sonodynamic therapy (PSDT). The in vitro cytotoxicity studies were conducted using the Michigan Cancer Foundation-7 breast cancer cell lines (MCF-7 cells). For PDT treatments, only the 1O2 was detected for all the sensitizers, whereas both the 1O2 and •OH radicals were evident after SDT and PSDT treatments. An increase in the 1O2 generation was observed for the conjugates compared to the GQDs and the Pc alone. However, the •OH radicals were reduced in the conjugates compared to the GQDs and the Pc alone. The NGQDs generally showed better ROS generation efficacy compared to the NSGQDs, alone and in the conjugates. The combination therapy also shows improved efficacy compared to the monotherapies for the Pcs and Pc-GQDs conjugates.
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Affiliation(s)
- Lindokuhle Cindy Nene
- Institute of Nanotechnology Innovation, Rhodes University, P.O. 94, Makhanda, South Africa
| | - Tebello Nyokong
- Institute of Nanotechnology Innovation, Rhodes University, P.O. 94, Makhanda, South Africa.
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Soberanes-Gutiérrez CV, León-Ramírez C, Sánchez-Segura L, Cordero-Martínez E, Vega-Arreguín JC, Ruiz-Herrera J. Cell death in Ustilago maydis: comparison with other fungi and the effect of metformin and curcumin on its chronological lifespan. FEMS Yeast Res 2021; 20:5908381. [PMID: 32945857 DOI: 10.1093/femsyr/foaa051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 09/14/2020] [Indexed: 12/11/2022] Open
Abstract
Ustilago maydis is a Basidiomycota fungus, in which very little is known about its mechanisms of cell survival and death. To date, only the role of metacaspase1, acetate and hydrogen peroxide as inducers of cell death has been investigated. In the present work, we analyzed the lifespan of U. maydis compared with other species like Sporisorium reilianum, Saccharomyces cerevisiae and Yarrowia lipolytica, and we observed that U. maydis has a minor lifespan. We probe the addition of low concentrations metformin and curcumin to the culture media, and we observed that both prolonged the lifespan of U. maydis, a result observed for the first time in a phytopathogen fungus. However, higher concentrations of curcumin were toxic for the cells, and interestingly induced the yeast-to-mycelium dimorphic transition. The positive effect of metformin and curcumin appears to be related to an inhibition of the mechanistic Target of Rapamycin (mTOR) pathway, increase expression of autophagy genes and reducing of reactive oxygen species. These data indicate that U. maydis may be a eukaryotic model organism to elucidate the molecular mechanism underlying apoptotic and necrosis pathways, and the lifespan increase caused by metformin and curcumin.
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Affiliation(s)
- Cinthia V Soberanes-Gutiérrez
- Laboratorio de Ciencias Agrogenómicas, de la Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Blv. UNAM 2011, Col. Predio el Saucillo y El Potrero, Comunidad de Los Tepetates, 37684, León Gto., México.,Departamento de Ingeniería Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Km. 9.6 Libramiento Norte Carr. Irapuato-León 36824 Irapuato Gto., México
| | - Claudia León-Ramírez
- Departamento de Ingeniería Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Km. 9.6 Libramiento Norte Carr. Irapuato-León 36824 Irapuato Gto., México
| | - Lino Sánchez-Segura
- Departamento de Ingeniería Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Km. 9.6 Libramiento Norte Carr. Irapuato-León 36824 Irapuato Gto., México
| | - Emmanuel Cordero-Martínez
- Laboratorio de Ciencias Agrogenómicas, de la Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Blv. UNAM 2011, Col. Predio el Saucillo y El Potrero, Comunidad de Los Tepetates, 37684, León Gto., México
| | - Julio C Vega-Arreguín
- Laboratorio de Ciencias Agrogenómicas, de la Escuela Nacional de Estudios Superiores Unidad León, Universidad Nacional Autónoma de México, Blv. UNAM 2011, Col. Predio el Saucillo y El Potrero, Comunidad de Los Tepetates, 37684, León Gto., México
| | - José Ruiz-Herrera
- Departamento de Ingeniería Genética, Unidad Irapuato, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Km. 9.6 Libramiento Norte Carr. Irapuato-León 36824 Irapuato Gto., México
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Abdullah ML, Al-Shabanah O, Hassan ZK, Hafez MM. Eugenol-Induced Autophagy and Apoptosis in Breast Cancer Cells via PI3K/AKT/FOXO3a Pathway Inhibition. Int J Mol Sci 2021; 22:ijms22179243. [PMID: 34502165 PMCID: PMC8430664 DOI: 10.3390/ijms22179243] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/15/2021] [Accepted: 08/24/2021] [Indexed: 12/11/2022] Open
Abstract
The use of natural compounds is promising in approaches to prevent and treat cancer. The long-term application of most currently employed chemotherapy techniques has toxic side effects. Eugenol, a phenolic phytochemical extracted from certain essential oils, has an anti-cancer effect. The modulation of autophagy can promote either the survival or apoptosis of cancer cells. Triple-negative (MDA-MB-231) and HER2 positive (SK-BR-3) breast cancer cell lines were treated with different doses of eugenol. Apoptosis was detected by a flow-cytometry technique, while autophagy was detected by acridine orange. Real-time PCR and Western blot assays were applied to investigate the effect of eugenol on the gene and protein expression levels of autophagy and apoptotic genes. Treating cells with different concentrations of eugenol significantly inhibited cell proliferation. The protein levels of AKT serine/threonine kinase 1 (AKT), forkhead box O3 (FOXO3a), cyclin dependent kinase inhibitor 1A (p21), cyclin-dependent kinase inhibitor (p27), and Caspase-3 and -9 increased significantly in Eugenol-treated cells. Eugenol also induced autophagy by upregulating the expression levels of microtubule-associated protein 1 light chain 3 (LC3) and downregulating the expression of nucleoporin 62 (NU p62). Eugenol is a promising natural anti-cancer agent against triple-negative and HER2-positive breast cancer. It appears to work by targeting the caspase pathway and by inducing autophagic cell death.
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Affiliation(s)
- Mashan L. Abdullah
- Experimental Medicine Department, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, MNGHA, Riyadh 11426, Saudi Arabia
- Pharmacology and Toxicology Department, King Saud University, Riyadh 11426, Saudi Arabia;
- Correspondence: (M.L.A.); (M.M.H.)
| | - Othman Al-Shabanah
- Pharmacology and Toxicology Department, King Saud University, Riyadh 11426, Saudi Arabia;
| | - Zeinab K. Hassan
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo 12613, Egypt;
| | - Mohamed M. Hafez
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo 12613, Egypt;
- Correspondence: (M.L.A.); (M.M.H.)
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Selective Apoptotic Effect of Plasma Activated Liquids on Human Cancer Cell Lines. Molecules 2021; 26:molecules26144254. [PMID: 34299530 PMCID: PMC8304656 DOI: 10.3390/molecules26144254] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/17/2022] Open
Abstract
Plasma medicine is a new field focusing on biomedical and clinical applications of cold gas plasmas, including their anticancer effects. Cold plasmas can be applied directly or indirectly as plasma-activated liquids (PAL). The effects of plasma-activated cell growth medium (PAM) and plasma-activated phosphate buffered saline (PAPBS) were tested, using a plasma pen generating streamer corona discharge in ambient air, on different cancer cell lines (melanoma A375, glioblastoma LN229 and pancreatic cancer MiaPaCa-2) and normal cells (human dermal fibroblasts HDFa). The viability reduction and apoptosis induction were detected in all cancer cells after incubation in PAL. In melanoma cells we focused on detailed insights to the apoptotic pathways. The anticancer effects depend on the plasma treatment time or PAL concentration. The first 30 min of incubation in PAL were enough to start processes leading to cell death. In fibroblasts, no apoptosis induction was observed, and only PAPBS, activated for a longer time, slightly decreased their viability. Effects of PAM and PAPBS on cancer cells showed selectivity compared to normal fibroblasts, depending on correctly chosen activation time and PAL concentration, which is very promising for potential clinical applications. This selectivity effect of PAL is conceivably induced by plasma-generated hydrogen peroxide.
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Oguzoglu AS, Senol N, Asci H, Erzurumlu Y, Gulle K, Savran M, Sadef M, Acar BG, Goksel HM. Pregabalin Protects Brain Tissue from Subarachnoid Hemorrhage by Enhancing HIF-1α/eNOS Signaling and VEGF Production. World Neurosurg 2021; 152:e713-e720. [PMID: 34129987 DOI: 10.1016/j.wneu.2021.06.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 01/25/2023]
Abstract
OBJECTIVE We investigated the effects of different doses of pregabalin on the pathophysiologic changes in early brain injury after subarachnoid hemorrhage (SAH) in rats. METHODS Thirty-eight Wistar albino rats were divided into 4 groups: control (n = 8), SAH (n = 10), SAH plus 30 mg/kg/day of pregabalin (n = 10), and SAH plus 60 mg/kg/day of pregabalin (n = 10). SAH was induced with 0.3 mL of autologous blood injected to the cisterna magna of rats. Pregabalin was administered intraperitoneally. Oxidative stress markers, mRNA expression of endothelial nitric oxide synthase, hypoxia-inducible factor-1α, and vascular endothelial growth factor, and histopathological changes were evaluated. RESULTS Pregabalin increased mRNA expression of endothelial nitric oxide synthase, hypoxia-inducible factor-1α, and vascular endothelial growth factor in a dose-dependent manner. Significant improvement in the histopathological parameters was observed at 60 mg/kg, including a decrease in diffuse hemorrhagic areas, edema and apoptotic bodies in the associated cortical area, evident vacuolization in the hippocampal area, and apoptotic bodies. However, these improvements were not observed with the lower dose (30 mg/kg). In contrast, the antioxidant effect was greater with 30 mg/kg of pregabalin than with 60 mg/kg. CONCLUSIONS Although the antioxidant effect was significant with the lower dose of pregabalin, the anti-inflammatory effects via vasodilatation were more marked with the higher dose. Significant improvements in the histopathological changes were observed with the higher dose of pregabalin. The dose-dependent effects of pregabalin on SAH should be evaluated in animal studies as a function of time and in the acute and chronic phases.
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Affiliation(s)
- Ali Serdar Oguzoglu
- Department of Neurosurgery, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Nilgun Senol
- Department of Neurosurgery, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey.
| | - Halil Asci
- Department of Medical Pharmacology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Yalcin Erzurumlu
- Department of Biochemistry, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Kanat Gulle
- Departments of Histology and Embryology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Mehtap Savran
- Department of Medical Pharmacology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Mustafa Sadef
- Department of Neurosurgery, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Berivan Gunduru Acar
- Department of Medical Pharmacology, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
| | - Hakan Murat Goksel
- Department of Neurosurgery, Suleyman Demirel University, Faculty of Medicine, Isparta, Turkey
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Yang YP, Zhao JQ, Gao HB, Li JJ, Li XL, Niu XL, Lei YH, Li X. Tannic acid alleviates lipopolysaccharide‑induced H9C2 cell apoptosis by suppressing reactive oxygen species‑mediated endoplasmic reticulum stress. Mol Med Rep 2021; 24:535. [PMID: 34080663 PMCID: PMC8170226 DOI: 10.3892/mmr.2021.12174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 04/30/2021] [Indexed: 01/08/2023] Open
Abstract
Sepsis-induced myocardial dysfunction is one of the features of multiple organ dysfunction in sepsis, which is associated with extremely high mortality and is characterized by impaired myocardial compliance. To date, there are few effective treatment options available to cure sepsis. Tannic acid (TA) is reportedly protective during sepsis; however, the underlying mechanisms by which TA protects against septic heart injury remain elusive. The present study investigated the potential effects and underlying mechanisms of TA in alleviating lipopolysaccharide (LPS)-induced H9C2 cardiomyocyte cell apoptosis. H9C2 cells were treated with LPS (15 µg/ml), TA (10 µM) and TA + LPS; control cells were treated with medium only. Apoptosis was measured using flow cytometry, reverse transcription-quantitative PCR (RT-qPCR) and western blot analysis. Additionally, the levels of cellular reactive oxygen species (ROS), malondialdehyde and nicotinamide adenine dinucleotide phosphate were evaluated. Western blotting and RT-qPCR were also employed to detect the expression levels of endoplasmic reticulum (ER) stress-associated functional proteins. The present findings demonstrated that TA reduced the degree of LPS-induced H9C2 cell injury, including inhibition of ROS production and ER stress (ERS)-associated apoptosis. ERS-associated functional proteins, including activating transcription factor 6, protein kinase-like ER kinase, inositol-requiring enzyme 1, spliced X box-binding protein 1 and C/EBP-homologous protein were suppressed in response to TA treatment. Furthermore, the expression levels of ERS-associated apoptotic proteins, including c-Jun N-terminal kinase, Bax, cytochrome c, caspase-3, caspase-12 and caspase-9 were reduced following treatment with TA. Additionally, the protective effects of TA on LPS-induced H9C2 cells were partially inhibited following treatment with the ROS inhibitor N-acetylcysteine, which demonstrated that ROS mediated ERS-associated apoptosis and TA was able to decrease ROS-mediated ERS-associated apoptosis. Collectively, the present findings demonstrated that the protective effects of TA against LPS-induced H9C2 cell apoptosis may be associated with the amelioration of ROS-mediated ERS. These findings may assist the development of potential novel therapeutic methods to inhibit the progression of myocardial cell injury.
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Affiliation(s)
- Yan-Ping Yang
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jie-Qiong Zhao
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Hai-Bo Gao
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jin-Jing Li
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Xiao-Li Li
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Xiao-Lin Niu
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yong-Hong Lei
- Department of Plastic Surgery, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Xue Li
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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Islam Y, Leach AG, Smith J, Pluchino S, Coxon CR, Sivakumaran M, Downing J, Fatokun AA, Teixidò M, Ehtezazi T. Physiological and Pathological Factors Affecting Drug Delivery to the Brain by Nanoparticles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2002085. [PMID: 34105297 PMCID: PMC8188209 DOI: 10.1002/advs.202002085] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 01/06/2021] [Indexed: 05/04/2023]
Abstract
The prevalence of neurological/neurodegenerative diseases, such as Alzheimer's disease is known to be increasing due to an aging population and is anticipated to further grow in the decades ahead. The treatment of brain diseases is challenging partly due to the inaccessibility of therapeutic agents to the brain. An increasingly important observation is that the physiology of the brain alters during many brain diseases, and aging adds even more to the complexity of the disease. There is a notion that the permeability of the blood-brain barrier (BBB) increases with aging or disease, however, the body has a defense mechanism that still retains the separation of the brain from harmful chemicals in the blood. This makes drug delivery to the diseased brain, even more challenging and complex task. Here, the physiological changes to the diseased brain and aged brain are covered in the context of drug delivery to the brain using nanoparticles. Also, recent and novel approaches are discussed for the delivery of therapeutic agents to the diseased brain using nanoparticle based or magnetic resonance imaging guided systems. Furthermore, the complement activation, toxicity, and immunogenicity of brain targeting nanoparticles as well as novel in vitro BBB models are discussed.
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Affiliation(s)
- Yamir Islam
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores UniversityByrom StreetLiverpoolL3 3AFUK
| | - Andrew G. Leach
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores UniversityByrom StreetLiverpoolL3 3AFUK
- Division of Pharmacy and OptometryThe University of ManchesterStopford Building, Oxford RoadManchesterM13 9PTUK
| | - Jayden Smith
- Cambridge Innovation Technologies Consulting (CITC) LimitedSt. John's Innovation CentreCowley RoadCambridgeCB4 0WSUK
| | - Stefano Pluchino
- Department of Clinical NeurosciencesClifford Allbutt Building – Cambridge Biosciences Campus and NIHR Biomedical Research CentreUniversity of CambridgeHills RoadCambridgeCB2 0HAUK
| | - Christopher R. Coxon
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores UniversityByrom StreetLiverpoolL3 3AFUK
- School of Engineering and Physical SciencesHeriot‐Watt UniversityWilliam Perkin BuildingEdinburghEH14 4ASUK
| | - Muttuswamy Sivakumaran
- Department of HaematologyPeterborough City HospitalEdith Cavell CampusBretton Gate PeterboroughPeterboroughPE3 9GZUK
| | - James Downing
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores UniversityByrom StreetLiverpoolL3 3AFUK
| | - Amos A. Fatokun
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores UniversityByrom StreetLiverpoolL3 3AFUK
| | - Meritxell Teixidò
- Institute for Research in Biomedicine (IRB Barcelona)Barcelona Institute of Science and Technology (BIST)Baldiri Reixac 10Barcelona08028Spain
| | - Touraj Ehtezazi
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores UniversityByrom StreetLiverpoolL3 3AFUK
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Kim CJ, Ryu HY, Lee S, Lee HJ, Chun YS, Kim JK, Yu CY, Ghimire BK, Lee JG. Neuroprotective Effect and Antioxidant Potency of Fermented Cultured Wild Ginseng Root Extracts of Panax ginseng C.A. Meyer in Mice. Molecules 2021; 26:3001. [PMID: 34070099 PMCID: PMC8158381 DOI: 10.3390/molecules26103001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 12/22/2022] Open
Abstract
Wild ginseng has better pharmacological effects than cultivated ginseng. However, its industrialization is limited by the inability to grow wild ginseng on a large scale. Herein, we demonstrate how to optimize ginseng production through cultivation, and how to enhance the concentrations of specific ginsenosides through fermentation. In the study, we also evaluated the ability of fermented cultured wild ginseng root extract (HLJG0701-β) to inhibit acetylcholinesterase (AChE), as well as its neuroprotective effects and antioxidant activity. In invitro tests, HLJG0701-β inhibited AChE activity and exerted neuroprotective and antioxidant effects (showing increased catalyst activity but decreased reactive oxygen species concentration). In invivo tests, after HLJG0701-β was orally administered at doses of 0, 125, 250, and 500 mg/kg in an animal model of memory impairment, behavioral evaluation (Morris water maze test and Y-maze task test) was performed. The levels of AChE, acetylcholine (ACh), blood catalase (CAT), and malondialdehyde (MDA) in brain tissues were measured. The results showed that HLJG0701-β produced the best results at a dose of 250 mg/kg or more. The neuroprotective mechanism of HLJG0701-β was determined to involve the inhibition of AChE activity and a decrease in oxidative stress. In summary, both invitro and invivo tests confirmed that HJG0701-β administration can lead to memory improvement.
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Affiliation(s)
- Chul-Joong Kim
- Research Institute of Biotechnology, HwajinBioCosmetics CO., LTD, Chuncheon 24232, Korea;
| | - Hyeon-Yeol Ryu
- Korea Conformity Laboratories, Yeonsu, Incheon 21999, Korea; (H.-Y.R.); (S.L.)
| | - Somin Lee
- Korea Conformity Laboratories, Yeonsu, Incheon 21999, Korea; (H.-Y.R.); (S.L.)
| | - Han-Joo Lee
- Aribio H&B CO.LTD, Yongin 16914, Korea; (H.-J.L.); (Y.-S.C.); (J.-K.K.)
| | - Yoon-Soek Chun
- Aribio H&B CO.LTD, Yongin 16914, Korea; (H.-J.L.); (Y.-S.C.); (J.-K.K.)
| | - Jong-Kyu Kim
- Aribio H&B CO.LTD, Yongin 16914, Korea; (H.-J.L.); (Y.-S.C.); (J.-K.K.)
| | - Chang-Yeon Yu
- Department of Bio-Resource Sciences, Kangwon National University, Chuncheon 21341, Korea;
| | - Bimal Kumar Ghimire
- Department of Crop Science, College of Sanghuh Life Science, Konkuk University, Gwangjin, Seoul 05029, Korea;
| | - Jae-Geun Lee
- Research Institute of Biotechnology, HwajinBioCosmetics CO., LTD, Chuncheon 24232, Korea;
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45
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Ungerer V, Bronkhorst AJ, Van den Ackerveken P, Herzog M, Holdenrieder S. Serial profiling of cell-free DNA and nucleosome histone modifications in cell cultures. Sci Rep 2021; 11:9460. [PMID: 33947882 PMCID: PMC8096822 DOI: 10.1038/s41598-021-88866-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 04/08/2021] [Indexed: 02/07/2023] Open
Abstract
Recent advances in basic research have unveiled several strategies for improving the sensitivity and specificity of cell-free DNA (cfDNA) based assays, which is a prerequisite for broadening its clinical use. Included among these strategies is leveraging knowledge of both the biogenesis and physico-chemical properties of cfDNA towards the identification of better disease-defining features and optimization of methods. While good progress has been made on this front, much of cfDNA biology remains uncharted. Here, we correlated serial measurements of cfDNA size, concentration and nucleosome histone modifications with various cellular parameters, including cell growth rate, viability, apoptosis, necrosis, and cell cycle phase in three different cell lines. Collectively, the picture emerged that temporal changes in cfDNA levels are rather irregular and not the result of constitutive release from live cells. Instead, changes in cfDNA levels correlated with intermittent cell death events, wherein apoptosis contributed more to cfDNA release in non-cancer cells and necrosis more in cancer cells. Interestingly, the presence of a ~ 3 kbp cfDNA population, which is often deemed to originate from accidental cell lysis or active release, was found to originate from necrosis. High-resolution analysis of this cfDNA population revealed an underlying DNA laddering pattern consisting of several oligo-nucleosomes, identical to those generated by apoptosis. This suggests that necrosis may contribute significantly to the pool of mono-nucleosomal cfDNA fragments that are generally interrogated for cancer mutational profiling. Furthermore, since active steps are often taken to exclude longer oligo-nucleosomes from clinical biospecimens and subsequent assays this raises the question of whether important pathological information is lost.
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Affiliation(s)
- Vida Ungerer
- Institute for Laboratory Medicine, German Heart Centre, Technical University of Munich, Lazarettstraße 36, 80636, Munich, Germany
| | - Abel J Bronkhorst
- Institute for Laboratory Medicine, German Heart Centre, Technical University of Munich, Lazarettstraße 36, 80636, Munich, Germany
| | | | - Marielle Herzog
- Belgian Volition SRL, 22 Rue Phocas Lejeune, Parc Scientifique Crealys, 5032, Isnes, Belgium
| | - Stefan Holdenrieder
- Institute for Laboratory Medicine, German Heart Centre, Technical University of Munich, Lazarettstraße 36, 80636, Munich, Germany.
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Nandi PG, Jadi PK, Das K, Prathapa SJ, Mandal BB, Kumar A. Synthesis of NNN Chiral Ruthenium Complexes and Their Cytotoxicity Studies. Inorg Chem 2021; 60:7422-7432. [PMID: 33909427 DOI: 10.1021/acs.inorgchem.1c00698] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The synthesis and characterization of chiral pincer-ruthenium complexes of the type (R2NNN)RuCl2 (PPh3) (R = 3-methylbutyl and 3,3-dimethylbutyl) is reported here. The cytotoxicity studies of these complexes were studied and compared with the corresponding activity of achiral complexes. The cytotoxic effect of pincer-ruthenium complexes on human dermal fibroblasts and human tongue carcinoma cells assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay displayed an inhibition of normal and cancer cell growth in a dose-dependent manner. Intracellular reactive oxygen species (ROS) level measurement, lactate dehydrogenase assay, DNA fragmentation, and necrosis studies revealed that treatment with pincer-ruthenium complexes induced a redox imbalance in SAS cells by upregulating ROS generation and caused necrotic cell death by disrupting the cellular membrane integrity.
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Affiliation(s)
- Pran Gobinda Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Praveen Kumar Jadi
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kanu Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | | | - Biman B Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences & Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.,Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.,Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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47
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O'Sullivan KM, Holdsworth SR. Neutrophil Extracellular Traps: A Potential Therapeutic Target in MPO-ANCA Associated Vasculitis? Front Immunol 2021; 12:635188. [PMID: 33790907 PMCID: PMC8005609 DOI: 10.3389/fimmu.2021.635188] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/18/2021] [Indexed: 12/19/2022] Open
Abstract
Our understanding of immune recognition and response to infection and non-infectious forms of cell damage and death is rapidly increasing. The major focus is on host immunity and microbiological invasion. However, it is also clear that these same pathways are important in the initiation and maintenance of autoimmunity and the damage caused to targeted organs. Understanding the involvement of cell death in autoimmune disease is likely to help define critical pathways in the immunopathogenesis of autoimmune disease and new therapeutic targets. An important immune responder cell population in host defense and autoimmunity is the neutrophil. One autoimmune disease where neutrophils play important roles is MPO-ANCA Microscopic Vasculitis. This a severe disease that results from inflammation to small blood vessels in the kidney, the glomeruli (high blood flow and pressure filters). One of the best studied ways in which neutrophils participate in this disease is by cell death through NETosis resulting in the discharge of proinflammatory enzymes and nuclear fragments. In host defense against infection this process helps neutralize pathogens however in auto immunity NETosis results in injury and death to the surrounding healthy tissues. The major autoimmune target in this disease is myeloperoxidase (MPO) which is found uniquely in the cytoplasm of neutrophils. Although the kidney is the major organ targeted in this disease MPO is not expressed in the kidney. Autoantibodies target surface MPO on activated circulating neutrophils resulting in their lodgment in glomerular capillaries where they NETose releasing extracellularly MPO and nuclear fragments initiating injury and planting the key autoantigen MPO. It is the cell death of neutrophils that changes the kidney from innocent bystander to major autoimmune target. Defining the immunopathogenesis of this autoimmune disease and recognizing critical injurious pathways will allow therapeutic intervention to block these pathways and attenuate autoimmune injury. The insights (regarding mechanisms of injury and potential therapeutic targets) are likely to be highly relevant to many other autoimmune diseases.
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Affiliation(s)
- Kim M O'Sullivan
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC, Australia
| | - Stephen R Holdsworth
- Department of Medicine, Centre for Inflammatory Diseases, Monash University, Clayton, VIC, Australia.,Department of Nephrology, Monash Medical Centre, Clayton, VIC, Australia.,Department of Immunology, Monash Medical Centre, Clayton, VIC, Australia
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Decreased Superoxide Dismutase Concentrations (SOD) in Plasma and CSF and Increased Circulating Total Antioxidant Capacity (TAC) Are Associated with Unfavorable Neurological Outcome after Aneurysmal Subarachnoid Hemorrhage. J Clin Med 2021; 10:jcm10061188. [PMID: 33809085 PMCID: PMC7999673 DOI: 10.3390/jcm10061188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/05/2021] [Accepted: 03/06/2021] [Indexed: 12/23/2022] Open
Abstract
Background: Subarachnoid hemorrhage (SAH) is a devastating disease with high morbidity and mortality. Hypoxia-induced changes and hemoglobin accumulation within the subarachnoid space are thought to lead to oxidative stress, early brain injury, and delayed vasospasm. This study aimed to evaluate the antioxidant status and its impact on neurological outcome in patients with aneurysmal SAH. Methods: In this prospective observational study, 29 patients with aneurysmal SAH were included (mean age 54.7 ± 12.4). Blood and cerebrospinal fluid (CSF) samples were collected on days (d) 1, 3, and 7. In addition, 29 patients without intracranial hemorrhage served as controls. The antioxidant system was analyzed by glutathione peroxidase (GSH-Px; U/L) and total and free glutathione-sulfhydryl (GSH; mg/L) in the plasma. Superoxide dismutase (SOD, U/mL) and total antioxidant capacity (TAC, µmol/L) were measured in the serum and CSF. Clinical data were compiled on admission (Hunt and Hess grade, Fisher grade, and GCS). Neurological and cognitive outcome (modified Rankin scale (mRS), Glasgow Outcome Scale Extended (GOSE) and Montreal Cognitive Assessment (MoCA)) was assessed after 6 weeks (6 w) and 6 months (6 m). Results: Plasma levels of SOD increased from day 1 to 7 after SAH (d1: 1.22 ± 0.36 U/L; d3: 1.25 ± 0.33 U/L, p = 0.99; d7: 1.52 ± 0.4 U/L, p = 0.019) and were significantly higher compared to controls (1.11 ± 0.27 U/L) at day 7 (p < 0.001). Concordantly, CSF levels of SOD increased from day 1 to 7 after SAH (d1: 1.22 ± 0.41 U/L; d3: 1.77 ± 0.73 U/L, p = 0.10; d7: 2.37 ± 1.29 U/L, p < 0.0001) without becoming significantly different compared to controls (1.74 ± 0.8 U/L, p = 0.09). Mean plasma TAC at day 1 (d1: 77.87 ± 49.72 µmol/L) was not statistically different compared to controls (46.74 ± 32.42 µmol/L, p = 0.25). TAC remained unchanged from day 1 to 7 (d3: 92.64 ± 68.58 µmol/L, p = 0.86; d7: 74.07 ± 54.95 µmol/L, p = 0.8) in plasma. TAC in CSF steeply declined from day 1 to 7 in patients with SAH becoming significantly different from controls at days 3 and 7 (d3: 177.3 ± 108.7 µmol/L, p = 0.0046; d7: 85.35 ± 103.9 µmol/L, p < 0.0001). Decreased SOD levels in plasma and CSF are associated with a worse neurological outcome 6 weeks (mRS: CSF p = 0.0001; plasma p = 0.027/GOSE: CSF p = 0.001; plasma p = 0.001) and 6 months (mRS: CSF p = 0.001; plasma p = 0.09/GOSE: CSF p = 0.001; plasma p = 0.001) after SAH. Increased plasma TAC correlated with a worse neurological outcome 6 weeks (mRS: p = 0.001/GOSE p = 0.001) and 6 months (mRS p = 0.001/GOSE p = 0.001) after SAH. Conclusion: In our study, a reduction in the antioxidative enzyme SOD and elevated TAC were associated with a poorer neurological outcome reflected by mRS and GOSE at 6 weeks and 6 months after SAH. A lower initial SOD CSF concentration was associated with the late deterioration of cognitive ability. These findings support the mounting evidence of the role of oxidative stress in early brain injury formation and unfavorable outcome after SAH.
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Sugianto P, Pardede SM, Widjaja NMR, Widjiati W. The Effect of Methylmercury Exposure on Astrocyte of Cerebellar Cortex of White Rats (Rattus novergicus). FOLIA MEDICA INDONESIANA 2021. [DOI: 10.20473/fmi.v55i2.24598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this research was to investigate the effect of different dose methylmercury (II) chloride on astrocyte in cerebellar cortex of white rat (Rattus norvegicus) exposed. This study used randomized control design using 15 adult female Wistar rats weight 180-200 g of body weight. Before treatment the white rats was adapted in a week, then randomly divided into 3 groups each consist of 5 rats. P0 as control were given 0.5 ml aquades, P1 and P2 were given 0.1 and 0.2 mg/kg/day respectively. All groups were given treatment per oral in 30 days with sonde. The data was analyzed by ANOVA, Duncan's multiple range (Duncan's Multiple Range Test). White rats exposed by methylmercury (II) chloride, had a significant differences in the percentage of necrotic astrocyte (p<0.05). Methylmercury chloride exposure increases the number of necrotic astrocytes on white rat.
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Chong SJF, Iskandar K, Lai JXH, Qu J, Raman D, Valentin R, Herbaux C, Collins M, Low ICC, Loh T, Davids M, Pervaiz S. Serine-70 phosphorylated Bcl-2 prevents oxidative stress-induced DNA damage by modulating the mitochondrial redox metabolism. Nucleic Acids Res 2021; 48:12727-12745. [PMID: 33245769 PMCID: PMC7736805 DOI: 10.1093/nar/gkaa1110] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 10/25/2020] [Accepted: 10/29/2020] [Indexed: 12/16/2022] Open
Abstract
Bcl-2 phosphorylation at serine-70 (S70pBcl2) confers resistance against drug-induced apoptosis. Nevertheless, its specific mechanism in driving drug-resistance remains unclear. We present evidence that S70pBcl2 promotes cancer cell survival by acting as a redox sensor and modulator to prevent oxidative stress-induced DNA damage and execution. Increased S70pBcl2 levels are inversely correlated with DNA damage in chronic lymphocytic leukemia (CLL) and lymphoma patient-derived primary cells as well as in reactive oxygen species (ROS)- or chemotherapeutic drug-treated cell lines. Bioinformatic analyses suggest that S70pBcl2 is associated with lower median overall survival in lymphoma patients. Empirically, sustained expression of the redox-sensitive S70pBcl2 prevents oxidative stress-induced DNA damage and cell death by suppressing mitochondrial ROS production. Using cell lines and lymphoma primary cells, we further demonstrate that S70pBcl2 reduces the interaction of Bcl-2 with the mitochondrial complex-IV subunit-5A, thereby reducing mitochondrial complex-IV activity, respiration and ROS production. Notably, targeting S70pBcl2 with the phosphatase activator, FTY720, is accompanied by an enhanced drug-induced DNA damage and cell death in CLL primary cells. Collectively, we provide a novel facet of the anti-apoptotic Bcl-2 by demonstrating that its phosphorylation at serine-70 functions as a redox sensor to prevent drug-induced oxidative stress-mediated DNA damage and execution with potential therapeutic implications.
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Affiliation(s)
- Stephen Jun Fei Chong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Kartini Iskandar
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Jolin Xiao Hui Lai
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Jianhua Qu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Deepika Raman
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Rebecca Valentin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Charles Herbaux
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Mary Collins
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Ivan Cherh Chiet Low
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore
| | - Thomas Loh
- Department of Otolaryngology, National University of Healthcare System (NUHS), Singapore, Singapore
| | - Matthew Davids
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Shazib Pervaiz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore, Singapore.,NUS Graduate School of Integrative Science and Engineering, NUS, Singapore, Singapore.,National University Cancer Institute, NUHS, Singapore, Singapore.,Faculté de Médecine, Université de Paris, Paris, France
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