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Chen KQ, Wang SZ, Lei HB, Liu X. Necrostatin-1: a promising compound for neurological disorders. Front Cell Neurosci 2024; 18:1408364. [PMID: 38994325 PMCID: PMC11236683 DOI: 10.3389/fncel.2024.1408364] [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: 03/28/2024] [Accepted: 06/17/2024] [Indexed: 07/13/2024] Open
Abstract
Necrostatin-1, a small molecular alkaloid, was identified as an inhibitor of necroptosis in 2005. Investigating the fundamental mechanism of Necrostatin-1 and its role in various diseases is of great significance for scientific and clinical research. Accumulating evidence suggests that Necrostatin-1 plays a crucial role in numerous neurological disorders. This review aims to provide a comprehensive overview of the potential functions of Necrostatin-1 in various neurological disorders, offering valuable insights for future research.
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Affiliation(s)
- Ke-Qian Chen
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, China
| | - Shu-Zhi Wang
- Institute of Pharmacy and Pharmacology, School of Pharmaceutical Sciences, University of South China, Hengyang, China
| | - Hai-Bo Lei
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, China
| | - Xiang Liu
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, China
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2
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Sioen S, D'Hondt L, Van Houte F, Demuynck R, Bacher K, De Wagter C, Vral A, Vanderstraeten B, Krysko DV, Baeyens A. Peripheral blood lymphocytes differ in DNA damage response after exposure to X-rays with different physical properties. Int J Radiat Biol 2024; 100:236-247. [PMID: 37819795 DOI: 10.1080/09553002.2023.2261525] [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: 02/06/2023] [Accepted: 09/08/2023] [Indexed: 10/13/2023]
Abstract
Introduction: In radiology, low X-ray energies (<140 keV) are used to obtain an optimal image while in radiotherapy, higher X-ray energies (MeV) are used to eradicate tumor tissue. In radiation research, both these X-ray energies being used to extrapolate in vitro research to clinical practice. However, the energy deposition of X-rays depends on their energy spectrum, which might lead to changes in biological response. Therefore, this study compared the DNA damage response (DDR) in peripheral blood lymphocytes (PBLs) exposed to X-rays with varying beam quality, mean photon energy (MPE) and dose rate.Methods: The DDR was evaluated in peripheral blood lymphocytes (PBLs) by the ɣ-H2AX foci assay, the cytokinesis-block micronucleus assay and an SYTOX-based cell death assay, combined with specific cell death inhibitors. Cell cultures were irradiated with a 220 kV X-ray research cabinet (SARRP, X-Strahl) or a 6 MV X-ray linear accelerator (Elekta Synergy). Three main physical parameters were investigated: beam quality (V), MPE (eV) and dose rate (Gy/min). Additional copper (Cu) filtration caused variation in the MPE (78 keV, 94 keV, 118 keV) at SARRP; dose rates were varied by adjusting tube current for 220 kV X-rays (0.33-3 Gy/min) or water-phantom depth in the 6 MV set-up (3-6 Gy/min).Results: The induction of chromosomal damage and initial (30 min) DNA double-stranded breaks (DSBs) were significantly higher for 220 kV X-rays compared to 6 MV X-rays, while cell death induction was similar. Specific cell death inhibitors for apoptosis, necroptosis and ferroptosis were not capable of blocking cell death after irradiation using low or high-energy X-rays. Additional Cu filtration increased the MPE, which significantly decreased the amount of chromosomal damage and DSBs. Within the tested ranges no specific effects of dose rate variation were observed.Conclusion: The DDR in PBLs is influenced by the beam quality and MPE. This study reinforces the need for consideration and inclusion of all physical parameters in radiation-related studies.
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Affiliation(s)
- Simon Sioen
- Radiobiology group, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Louise D'Hondt
- Radiobiology group, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Fien Van Houte
- Radiobiology group, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Robin Demuynck
- Cell Death Investigation and Therapy Laboratory, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Klaus Bacher
- Medical Physics Group, Department of Human Structure and Repair, Gent, Belgium
| | - Carlos De Wagter
- Medical Physics Group, Department of Human Structure and Repair, Gent, Belgium
- Department of Radiotherapy-Oncology, Ghent University Hospital, Gent, Belgium
| | - Anne Vral
- Radiobiology group, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Barbara Vanderstraeten
- Medical Physics Group, Department of Human Structure and Repair, Gent, Belgium
- Department of Radiotherapy-Oncology, Ghent University Hospital, Gent, Belgium
| | - Dmitri V Krysko
- Cell Death Investigation and Therapy Laboratory, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Ans Baeyens
- Radiobiology group, Department of Human Structure and Repair, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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3
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Yamaga S, Aziz M, Murao A, Brenner M, Wang P. DAMPs and radiation injury. Front Immunol 2024; 15:1353990. [PMID: 38333215 PMCID: PMC10850293 DOI: 10.3389/fimmu.2024.1353990] [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: 12/11/2023] [Accepted: 01/15/2024] [Indexed: 02/10/2024] Open
Abstract
The heightened risk of ionizing radiation exposure, stemming from radiation accidents and potential acts of terrorism, has spurred growing interests in devising effective countermeasures against radiation injury. High-dose ionizing radiation exposure triggers acute radiation syndrome (ARS), manifesting as hematopoietic, gastrointestinal, and neurovascular ARS. Hematopoietic ARS typically presents with neutropenia and thrombocytopenia, while gastrointestinal ARS results in intestinal mucosal injury, often culminating in lethal sepsis and gastrointestinal bleeding. This deleterious impact can be attributed to radiation-induced DNA damage and oxidative stress, leading to various forms of cell death, such as apoptosis, necrosis and ferroptosis. Damage-associated molecular patterns (DAMPs) are intrinsic molecules released by cells undergoing injury or in the process of dying, either through passive or active pathways. These molecules then interact with pattern recognition receptors, triggering inflammatory responses. Such a cascade of events ultimately results in further tissue and organ damage, contributing to the elevated mortality rate. Notably, infection and sepsis often develop in ARS cases, further increasing the release of DAMPs. Given that lethal sepsis stands as a major contributor to the mortality in ARS, DAMPs hold the potential to function as mediators, exacerbating radiation-induced organ injury and consequently worsening overall survival. This review describes the intricate mechanisms underlying radiation-induced release of DAMPs. Furthermore, it discusses the detrimental effects of DAMPs on the immune system and explores potential DAMP-targeting therapeutic strategies to alleviate radiation-induced injury.
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Affiliation(s)
- Satoshi Yamaga
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Monowar Aziz
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Atsushi Murao
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Max Brenner
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Ping Wang
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
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4
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Sioen S, Vanhove O, Vanderstraeten B, De Wagter C, Engelbrecht M, Vandevoorde C, De Kock E, Van Goethem MJ, Vral A, Baeyens A. Impact of proton therapy on the DNA damage induction and repair in hematopoietic stem and progenitor cells. Sci Rep 2023; 13:16995. [PMID: 37813904 PMCID: PMC10562436 DOI: 10.1038/s41598-023-42362-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/08/2023] [Indexed: 10/11/2023] Open
Abstract
Proton therapy is of great interest to pediatric cancer patients because of its optimal depth dose distribution. In view of healthy tissue damage and the increased risk of secondary cancers, we investigated DNA damage induction and repair of radiosensitive hematopoietic stem and progenitor cells (HSPCs) exposed to therapeutic proton and photon irradiation due to their role in radiation-induced leukemia. Human CD34+ HSPCs were exposed to 6 MV X-rays, mid- and distal spread-out Bragg peak (SOBP) protons at doses ranging from 0.5 to 2 Gy. Persistent chromosomal damage was assessed with the micronucleus assay, while DNA damage induction and repair were analyzed with the γ-H2AX foci assay. No differences were found in induction and disappearance of γ-H2AX foci between 6 MV X-rays, mid- and distal SOBP protons at 1 Gy. A significantly higher number of micronuclei was found for distal SOBP protons compared to 6 MV X-rays and mid- SOBP protons at 0.5 and 1 Gy, while no significant differences in micronuclei were found at 2 Gy. In HSPCs, mid-SOBP protons are as damaging as conventional X-rays. Distal SOBP protons showed a higher number of micronuclei in HSPCs depending on the radiation dose, indicating possible changes of the in vivo biological response.
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Affiliation(s)
- Simon Sioen
- Radiobiology, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
| | - Oniecha Vanhove
- Radiobiology, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Barbara Vanderstraeten
- Medical Physics, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent, Belgium
- Department of Radiotherapy-Oncology, Ghent University Hospital, Ghent, Belgium
| | - Carlos De Wagter
- Medical Physics, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent, Belgium
- Department of Radiotherapy-Oncology, Ghent University Hospital, Ghent, Belgium
| | - Monique Engelbrecht
- Separated Sector Cyclotron Laboratory, Radiation Biophysics Division, iThemba LABS (NRF), Cape Town, 7131, South Africa
| | - Charlot Vandevoorde
- Separated Sector Cyclotron Laboratory, Radiation Biophysics Division, iThemba LABS (NRF), Cape Town, 7131, South Africa
- Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - Evan De Kock
- Separated Sector Cyclotron Laboratory, Radiation Biophysics Division, iThemba LABS (NRF), Cape Town, 7131, South Africa
| | - Marc-Jan Van Goethem
- Department of Radiation Oncology and Particle Therapy Research Center, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anne Vral
- Radiobiology, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Ans Baeyens
- Radiobiology, Department of Human Structure and Repair, Faculty of Medicine and Health Sciences, Ghent University, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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Prasad Panda S, Kesharwani A, Prasanna Mallick S, Prasanth D, Kumar Pasala P, Bharadwaj Tatipamula V. Viral-induced neuronal necroptosis: Detrimental to brain function and regulation by necroptosis inhibitors. Biochem Pharmacol 2023; 213:115591. [PMID: 37196683 DOI: 10.1016/j.bcp.2023.115591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/19/2023]
Abstract
Neuronal necroptosis (programmed necrosis) in the CNS naturally occurs through a caspase-independent way and, especially in neurodegenerative diseases (NDDs) such as Alzheimer's disease (AD), Parknson's disease (PD), Amyotrophic Lateral Sclerosis (ALS) and viral infections. Understanding necroptosis pathways (death receptor-dependent and independent), and its connections with other cell death pathways could lead to new insights into treatment. Receptor-interacting protein kinase (RIPK) mediates necroptosis via mixed-lineage kinase-like (MLKL) proteins. RIPK/MLKL necrosome contains FADD, procaspase-8-cellular FLICE-inhibitory proteins (cFLIPs), RIPK1/RIPK3, and MLKL. The necrotic stimuli cause phosphorylation of MLKL and translocate to the plasma membrane, causing an influx of Ca2+ and Na+ ions and, the immediate opening of mitochondrial permeability transition pore (mPTP) with the release of inflammatory cell damage-associated molecular patterns (DAMPs) like mitochondrial DNA (mtDNA), high-mobility group box1 (HMGB1), and interleukin1 (IL-1). The MLKL translocates to the nucleus to induce transcription of the NLRP3 inflammasome complex elements. MLKL-induced NLRP3 activity causes caspase-1 cleavage and, IL-1 activation which promotes neuroinflammation. RIPK1-dependent transcription increases illness-associated microglial and lysosomal abnormalities to facilitate amyloid plaque (Aβ) aggregation in AD. Recent research has linked neuroinflammation and mitochondrial fission with necroptosis. MicroRNAs (miRs) such as miR512-3p, miR874, miR499, miR155, and miR128a regulate neuronal necroptosis by targeting key components of necroptotic pathways. Necroptosis inhibitors act by inhibiting the membrane translocation of MLKL and RIPK1 activity. This review insights into the RIPK/MLKL necrosome-NLRP3 inflammasome interactions during death receptor-dependent and independent neuronal necroptosis, and clinical intervention by miRs to protect the brain from NDDs.
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Affiliation(s)
- Siva Prasad Panda
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, India.
| | - Adarsh Kesharwani
- Institute of Pharmaceutical Research, GLA University, Mathura, Uttar Pradesh, India
| | - Sarada Prasanna Mallick
- Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Guntur, Andhrapradesh, India
| | - Dsnbk Prasanth
- Department of Pharmacognosy, KVSR Siddhartha College of Pharmaceutical Sciences, Vijayawada, AP, India
| | | | - Vinay Bharadwaj Tatipamula
- Center for Molecular Biology, College of Medicine and Pharmacy, Duy Tan University, Danang 550000, Viet Nam
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6
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Gitogenin suppresses lung cancer progression by inducing apoptosis and autophagy initiation through the activation of AMPK signaling. Int Immunopharmacol 2022; 111:108806. [PMID: 35914447 DOI: 10.1016/j.intimp.2022.108806] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 04/18/2022] [Accepted: 04/24/2022] [Indexed: 11/22/2022]
Abstract
Lung cancer is a leading cause of tumor-associated death worldwide. Autophagy plays a key role in regulating lung cancer progression, and is a promising option for lung cancer treatment. Saponins are a group of naturally occurring plant glycosides, characterized by their strong foam-forming properties in aqueous solution, and exert various biological properties, such as anti-inflammation and anti-cancer. In the present study, we for the first time explored the effects of gitogenin (GIT), an important saponin derived from Tribulus longipetalus, on lung cancer progression both in vitro and in vivo. We found that GIT markedly reduced the proliferation and induced apoptosis in lung cancer cells through increasing the cleavage of Caspase-3 and poly (ADP-ribose) polymerases (PARPs). In addition, GIT-incubated lung cancer cells exhibited clear accumulation of autophagosome, which was essential for GIT-suppressed lung cancer. Mechanistically, GIT-induced autophagy initiation was mainly through activating AMP-activated protein kinase (AMPK) and blocking protein kinase B (AKT) signaling pathways, respectively. Moreover, the autophagic flux was disrupted in GIT-treated lung cancer cells, contributing to the accumulation of impaired autophagolysosomes. Importantly, we found that suppressing autophagy initiation could abolish GIT-induced cell death; however, autophagosomes accumulation sensitized lung cancer cells to cell death upon GIT treatment. More in vitro experiments showed that GIT led to reactive oxygen species (ROS) production in lung cancer cells, which was also involved in the modulation of apoptosis. The in vivo findings confirmed the effects of GIT against lung cancer progression with undetectable toxicity to organs. In conclusion, we provided new insights into the treatment of lung cancer, and GIT might be an effective strategy for future clinical application.
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7
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Lamade AM, Wu L, Dar HH, Mentrup HL, Shrivastava IH, Epperly MW, St Croix CM, Tyurina YY, Anthonymuthu TS, Yang Q, Kapralov AA, Huang Z, Mao G, Amoscato AA, Hier ZE, Artyukhova MA, Shurin G, Rosenbaum JC, Gough PJ, Bertin J, VanDemark AP, Watkins SC, Mollen KP, Bahar I, Greenberger JS, Kagan VE, Whalen MJ, Bayır H. Inactivation of RIP3 kinase sensitizes to 15LOX/PEBP1-mediated ferroptotic death. Redox Biol 2022; 50:102232. [PMID: 35101798 PMCID: PMC8804265 DOI: 10.1016/j.redox.2022.102232] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/23/2021] [Accepted: 01/06/2022] [Indexed: 01/02/2023] Open
Abstract
Ferroptosis and necroptosis are two pro-inflammatory cell death programs contributing to major pathologies and their inhibition has gained attention to treat a wide range of disease states. Necroptosis relies on activation of RIP1 and RIP3 kinases. Ferroptosis is triggered by oxidation of polyunsaturated phosphatidylethanolamines (PUFA-PE) by complexes of 15-Lipoxygenase (15LOX) with phosphatidylethanolamine-binding protein 1 (PEBP1). The latter, also known as RAF kinase inhibitory protein, displays promiscuity towards multiple proteins. In this study we show that RIP3 K51A kinase inactive mice have increased ferroptotic burden and worse outcome after irradiation and brain trauma rescued by anti-ferroptotic compounds Liproxstatin-1 and Ferrostatin 16-86. Given structural homology between RAF and RIP3, we hypothesized that PEBP1 acts as a necroptosis-to-ferroptosis switch interacting with either RIP3 or 15LOX. Using genetic, biochemical, redox lipidomics and computational approaches, we uncovered that PEBP1 complexes with RIP3 and inhibits necroptosis. Elevated expression combined with higher affinity enables 15LOX to pilfer PEBP1 from RIP3, thereby promoting PUFA-PE oxidation and ferroptosis which sensitizes Rip3K51A/K51A kinase-deficient mice to total body irradiation and brain trauma. This newly unearthed PEBP1/15LOX-driven mechanism, along with previously established switch between necroptosis and apoptosis, can serve multiple and diverse cell death regulatory functions across various human disease states.
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Affiliation(s)
- Andrew M. Lamade
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Limin Wu
- Neuroscience Center and Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St. Boston, MA, 02114, USA
| | - Haider H. Dar
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Heather L. Mentrup
- Division of Pediatric General and Thoracic Surgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave, Pittsburgh, PA, 15224, USA
| | - Indira H. Shrivastava
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA,Department of Computational and Systems Biology, University of Pittsburgh, 800 Murdoch I Bldg, 3420 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Michael W. Epperly
- Department of Radiation Oncology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA, 15213, USA
| | - Claudette M. St Croix
- Department of Cell Biology, University of Pittsburgh School of Medicine, 3550 Terrace St, Pittsburgh, PA, 15261, USA
| | - Yulia Y. Tyurina
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Tamil S. Anthonymuthu
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Qin Yang
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Aleksandr A. Kapralov
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Zhentai Huang
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Gaowei Mao
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Andrew A. Amoscato
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Zachary E. Hier
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Margarita A. Artyukhova
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Galina Shurin
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA
| | - Joel C. Rosenbaum
- Department of Biological Sciences, University of Pittsburgh, 4249 5th Ave, Pittsburgh, PA, 15213, USA
| | - Peter J. Gough
- Inzen Therapeutics, 790 Memorial Dr Ste 2C, Cambridge, MA, 02139, USA
| | - John Bertin
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-inflammation Therapeutic Area, GlaxoSmithKline, 1250 S Collegeville Rd, Collegeville, PA, 19426, USA
| | - Andrew P. VanDemark
- Department of Biological Sciences, University of Pittsburgh, 4249 5th Ave, Pittsburgh, PA, 15213, USA
| | - Simon C. Watkins
- Department of Cell Biology, University of Pittsburgh School of Medicine, 3550 Terrace St, Pittsburgh, PA, 15261, USA
| | - Kevin P. Mollen
- Division of Pediatric General and Thoracic Surgery, UPMC Children's Hospital of Pittsburgh, 4401 Penn Ave, Pittsburgh, PA, 15224, USA
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh, 800 Murdoch I Bldg, 3420 Forbes Avenue, Pittsburgh, PA, 15213, USA
| | - Joel S. Greenberger
- Department of Radiation Oncology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA, 15213, USA
| | - Valerian E. Kagan
- Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA,Children’s Neuroscience Institute, Children’s Hospital of Pittsburgh, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Corresponding author. Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA.
| | - Michael J. Whalen
- Neuroscience Center and Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St. Boston, MA, 02114, USA,Corresponding author. Neuroscience Center and Department of Pediatrics, Massachusetts General Hospital and Harvard Medical School, 55 Fruit St. Boston, MA, 02114, USA
| | - Hülya Bayır
- Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh School of Public Health, 130 Desoto St, Pittsburgh, PA, 15261, USA,Children’s Neuroscience Institute, Children’s Hospital of Pittsburgh, 4401 Penn Ave, Pittsburgh, PA, 15224, USA,Corresponding author. Safar Center for Resuscitation Research, Department of Critical Care Medicine, University of Pittsburgh Medical Center, 4401 Penn Ave, Pittsburgh, PA, 15224, USA.
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8
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Stereotactic body radiation combined with oncolytic vaccinia virus induces potent anti-tumor effect by triggering tumor cell necroptosis and DAMPs. Cancer Lett 2021; 523:149-161. [PMID: 34606928 DOI: 10.1016/j.canlet.2021.09.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/12/2021] [Accepted: 09/27/2021] [Indexed: 02/07/2023]
Abstract
Radiation is an integral part of cancer therapy. With the emergence of oncolytic vaccinia virus immunotherapy, it is important to study the combination of radiation and vaccinia virus in cancer therapy. In this study, we investigated the anti-tumor effect of and immune mechanisms underlying the combination of high-dose hypofractionated stereotactic body radiotherapy (SBRT) and oncolytic vaccinia virus in preclinical murine models. The combination enhanced the in vivo anti-tumor effect and increased the numbers of splenic CD4+Ki-67+ helper T lymphocytes and CD8+Ki-67+ cytotoxic T lymphocytes. Combinational therapy also increased tumor-infiltrating CD3+CD4+ helper T lymphocytes and CD3+CD8+ cytotoxic T lymphocytes, but decreased tumor-infiltrating regulatory T cells. In addition, SBRT combined with oncolytic vaccinia virus enhanced in vitro cell death, partly through necroptosis, and subsequent release of damage-associated molecular patterns (DAMPs), and shifted the macrophage M1/M2 ratio. We concluded that SBRT combined with oncolytic vaccinia virus can trigger tumor cell necroptosis and modify macrophages through the release of DAMPs, and then generate potent anti-tumor immunity and effects. Thus, combined therapy is potentially an important strategy for clinical cancer therapy.
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9
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Li K, Epperly MW, Barreto GA, Greenberger JS, Methé BA. "Longitudinal Fecal Microbiome Study of Total Body Irradiated Mice Treated With Radiation Mitigators Identifies Bacterial Associations With Survival". Front Cell Infect Microbiol 2021; 11:715396. [PMID: 34621689 PMCID: PMC8490782 DOI: 10.3389/fcimb.2021.715396] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/27/2021] [Indexed: 12/12/2022] Open
Abstract
Total body irradiation (TBI) has been demonstrated to alter the intestinal microbiome, but the effects of successful small molecule ionizing radiation mitigators on the intestinal microbiome are not well-known. Our survival experiments examined the effects of anti-cell death radiation mitigators on and in conjunction with the host's microbiota. Mice received 9.25 Gy TBI and then were administered radiation mitigators 24 hours later. Passed stool were collected pre-irradiation, then on days 1, 3, 5, 7, 10, 14, 21, and 30 post-irradiation for 16S rRNA gene (V4 region) sequencing. The Cox proportional hazards (CPH) model was fit with taxonomic composition (time varying covariates) and treatment as predictors. In the first experiment, mice were administered drugs for "granulocyte stimulation and anti-apoptosis" in four protocol combinations: JP4-039 (anti-apoptosis), granulocyte colony-stimulating factor (G-CSF, granulopoietic precursor cell stimulator), both mitigators, and control. Survival improved relative to control (30.0%) for G-CSF (80%, p-value = 0.025), G-CSF/JP4-039 (70%, p-value = 0.084), but not for JP4-039 (50.0%). In the second experiment, mice were administered mitigation drugs "inhibiting programmed cell death" pathways: JP4-039 (anti-apoptosis), necrostatin-1 (anti-necroptosis), and baicalein (anti-ferroptosis), in eight combinations. The survival of JP4-039/baicalein (60.0%, p-value = 0.010) and JP4-039/baicalein/necrostatin-1 (60.0%, p-value = 0.06) treatment combinations were significantly different from the control (26.7%). The JP4-039/necrostatin-1 (46.7%) and baicalein/necrostatin-1 (40.0%) and singlet treatment combinations (26.7%) were not significantly different from the control. Despite differences between the baseline microbiota compositions of the two experiments, consistent changes in composition after irradiation were found: Lactobacillus decreased post-irradiation, relative to baseline. By day 7, microbiota perturbations had incompletely reversed, and no drug-specific differences were identifiable. The CPH model identified Lactobacillus and members of Ruminococcaceae, including Ruminococcus, as protective and Akkermansia as deleterious. By day 30, the microbiota of surviving mice had not returned to baseline, but the differences between experiments suggest the resultant microbiota composition of the survivors are stochastic or batch specific in nature, rather than a requirement for survival. In conclusion, the study determined that key taxa identified in fecal samples, when applied towards the prediction of TBI survival, improves the survival model relative to treatment information alone.
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Affiliation(s)
- Kelvin Li
- Center for Medicine and the Microbiome, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Michael W. Epperly
- Department of Radiation Oncology, University of Pittsburgh School of Medicine and UPMC Hillman Cancer Center, Pittsburgh, PA, United States
| | - Gabriella Acosta Barreto
- Center for Medicine and the Microbiome, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Joel S. Greenberger
- Department of Radiation Oncology, University of Pittsburgh School of Medicine and UPMC Hillman Cancer Center, Pittsburgh, PA, United States
| | - Barbara A. Methé
- Center for Medicine and the Microbiome, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, United States
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10
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Punch PR, Irons EE, Manhardt CT, Marathe H, Lau JTY. The sialyltransferase ST6GAL1 protects against radiation-induced gastrointestinal damage. Glycobiology 2021; 30:446-453. [PMID: 31897489 DOI: 10.1093/glycob/cwz108] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/14/2022] Open
Abstract
High-dose irradiation poses extreme risk of mortality from acute damage to the hematopoietic compartment and gastrointestinal tract. While bone marrow transplantation can reestablish the hematopoietic compartment, a more imminent risk of death is posed by gastrointestinal acute radiation syndrome (GI-ARS), for which there are no FDA-approved medical countermeasures. Although the mechanisms dictating the severity of GI-ARS remain incompletely understood, sialylation by ST6GAL1 has been shown to protect against radiation-induced apoptosis in vitro. Here, we used a C57BL/6 St6gal1-KO mouse model to investigate the contribution of ST6GAL1 to susceptibility to total body irradiation in vivo. Twelve gray total body ionizing γ-irradiation (TBI) followed by bone marrow transplant is not lethal to wild-type mice, but St6gal1-KO counterparts succumbed within 7 d. Both St6gal1-KO and wild-type animals exhibited damage to the GI epithelium, diarrhea and weight loss, but these symptoms became progressively more severe in the St6gal1-KO animals while wild-type counterparts showed signs of recovery by 120 h after TBI. Increased apoptosis in the GI tracts of St6gal1-KO mice and the absence of regenerative crypts were also observed. Together, these observations highlight an important role for ST6GAL1 in protection and recovery from GI-ARS in vivo.
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Affiliation(s)
- Patrick R Punch
- Department of Molecular & Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Eric E Irons
- Department of Molecular & Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Charles T Manhardt
- Department of Molecular & Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Himangi Marathe
- Department of Molecular & Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm & Carlton Streets, Buffalo, NY 14263, USA
| | - Joseph T Y Lau
- Department of Molecular & Cellular Biology, Roswell Park Comprehensive Cancer Center, Elm & Carlton Streets, Buffalo, NY 14263, USA
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11
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Lau H, Li S, Corrales N, Rodriguez S, Mohammadi M, Alexander M, de Vos P, Lakey JRT. Necrostatin-1 Supplementation to Islet Tissue Culture Enhances the In-Vitro Development and Graft Function of Young Porcine Islets. Int J Mol Sci 2021; 22:8367. [PMID: 34445075 PMCID: PMC8394857 DOI: 10.3390/ijms22168367] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 11/20/2022] Open
Abstract
Pre-weaned porcine islets (PPIs) represent an unlimited source for islet transplantation but are functionally immature. We previously showed that necrostatin-1 (Nec-1) immediately after islet isolation enhanced the in vitro development of PPIs. Here, we examined the impact of Nec-1 on the in vivo function of PPIs after transplantation in diabetic mice. PPIs were isolated from pancreata of 8-15-day-old, pre-weaned pigs and cultured in media alone, or supplemented with Nec-1 (100 µM) on day 0 or on day 3 of culture (n = 5 for each group). On day 7, islet recovery, viability, oxygen consumption rate, insulin content, cellular composition, insulin secretion capacity, and transplant outcomes were evaluated. While islet viability and oxygen consumption rate remained high throughout 7-day tissue culture, Nec-1 supplementation on day 3 significantly improved islet recovery, insulin content, endocrine composition, GLUT2 expression, differentiation potential, proliferation capacity of endocrine cells, and insulin secretion. Adding Nec-1 on day 3 of tissue culture enhanced the islet recovery, proportion of delta cells, beta-cell differentiation and proliferation, and stimulation index. In vivo, this leads to shorter times to normoglycemia, better glycemic control, and higher circulating insulin. Our findings identify the novel time-dependent effects of Nec-1 supplementation on porcine islet quantity and quality prior to transplantation.
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Affiliation(s)
- Hien Lau
- Department of Surgery, University of California Irvine, Irvine, CA 92868, USA; (H.L.); (N.C.); (S.R.); (M.A.)
| | - Shiri Li
- Weill Cornell Medical College, Cornell University, Ithaca, NY 14850, USA;
| | - Nicole Corrales
- Department of Surgery, University of California Irvine, Irvine, CA 92868, USA; (H.L.); (N.C.); (S.R.); (M.A.)
| | - Samuel Rodriguez
- Department of Surgery, University of California Irvine, Irvine, CA 92868, USA; (H.L.); (N.C.); (S.R.); (M.A.)
| | - Mohammadreza Mohammadi
- Sue and Bill Gross Stem Cell Research Center, Department of Materials Science and Engineering, University of California Irvine, Irvine, CA 92697, USA;
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA 92697, USA
| | - Michael Alexander
- Department of Surgery, University of California Irvine, Irvine, CA 92868, USA; (H.L.); (N.C.); (S.R.); (M.A.)
| | - Paul de Vos
- University Medical Center Groningen, Department of Pathology and Medical Biology, University of Groningen, 9713 GZ Groningen, The Netherlands;
| | - Jonathan RT Lakey
- Department of Surgery, University of California Irvine, Irvine, CA 92868, USA; (H.L.); (N.C.); (S.R.); (M.A.)
- Department of Biomedical Engineering, University of California Irvine, Irvine, CA 92697, USA
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12
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Ouyang Y, Wen L, Armstrong JA, Chvanov M, Latawiec D, Cai W, Awais M, Mukherjee R, Huang W, Gough PJ, Bertin J, Tepikin AV, Sutton R, Criddle DN. Protective Effects of Necrostatin-1 in Acute Pancreatitis: Partial Involvement of Receptor Interacting Protein Kinase 1. Cells 2021; 10:1035. [PMID: 33925729 PMCID: PMC8145347 DOI: 10.3390/cells10051035] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/18/2022] Open
Abstract
Acute pancreatitis (AP) is a severe and potentially fatal disease caused predominantly by alcohol excess and gallstones, which lacks a specific therapy. The role of Receptor-Interacting Protein Kinase 1 (RIPK1), a key component of programmed necrosis (Necroptosis), is unclear in AP. We assessed the effects of RIPK1 inhibitor Necrostatin-1 (Nec-1) and RIPK1 modification (RIPK1K45A: kinase dead) in bile acid (TLCS-AP), alcoholic (FAEE-AP) and caerulein hyperstimulation (CER-AP) mouse models. Involvement of collateral Nec-1 target indoleamine 2,3-dioxygenase (IDO) was probed with the inhibitor Epacadostat (EPA). Effects of Nec-1 and RIPK1K45A were also compared on pancreatic acinar cell (PAC) fate in vitro and underlying mechanisms explored. Nec-1 markedly ameliorated histological and biochemical changes in all models. However, these were only partially reduced or unchanged in RIPK1K45A mice. Inhibition of IDO with EPA was protective in TLCS-AP. Both Nec-1 and RIPK1K45A modification inhibited TLCS- and FAEE-induced PAC necrosis in vitro. Nec-1 did not affect TLCS-induced Ca2+ entry in PACs, however, it inhibited an associated ROS elevation. The results demonstrate protective actions of Nec-1 in multiple models. However, RIPK1-dependent necroptosis only partially contributed to beneficial effects, and actions on targets such as IDO are likely to be important.
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Affiliation(s)
- Yulin Ouyang
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
- Brain Cognition and Brain Disease Institute, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Li Wen
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Jane A. Armstrong
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Michael Chvanov
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
| | - Diane Latawiec
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Wenhao Cai
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Mohammad Awais
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Rajarshi Mukherjee
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Wei Huang
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - Peter J. Gough
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA; (P.J.G.); (J.B.)
| | - John Bertin
- Pattern Recognition Receptor Discovery Performance Unit, Immuno-Inflammation Therapeutic Area, GlaxoSmithKline, Collegeville, PA 19426, USA; (P.J.G.); (J.B.)
| | - Alexei V. Tepikin
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
| | - Robert Sutton
- Molecular & Clinical Cancer Medicine, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (L.W.); (J.A.A.); (D.L.); (W.C.); (M.A.); (R.M.); (W.H.); (R.S.)
| | - David N. Criddle
- Department of Molecular Physiology & Cell Signalling, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool L69 3BX, UK; (Y.O.); (M.C.); (A.V.T.)
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13
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Xu Y, Tu W, Sun D, Chen X, Ge Y, Yao S, Li B, Zhenbo Zhang, Liu Y. Nrf2 alleviates radiation-induced rectal injury by inhibiting of necroptosis. Biochem Biophys Res Commun 2021; 554:49-55. [PMID: 33774279 DOI: 10.1016/j.bbrc.2021.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/01/2021] [Indexed: 12/18/2022]
Abstract
Radiation-induced rectal injury is one of the common side effects of pelvic radiation therapy. This study aimed to explore the role of nuclear factor erythroid 2-related factor 2 (Nrf2) in this process. In vivo, knockout (KO) of Nrf2 led to aggravated radiation-induced histological changes in the rectums. In vitro, interference or overexpression of Nrf2 resulted in enhanced or reduced radiosensitivity in human intestinal epithelial crypts (HIEC) cells, respectively. A potential relationship between Nrf2 and necroptosis was identified using RNA sequencing (RNA-seq) and western blotting (WB), which showed that necroptosis-related proteins were negatively correlated with Nrf2. Upon treatment with necrostatin-1 (Nec-1), the increased radiosensitivity, decreased cell viability, increased γH2AX foci formation, and decreased mitochondrial membrane potential (MMP) in Nrf2-interfered HIEC cells were alleviated. A significant recovery in morphological alterations was also observed in Nrf2 KO mice administered with Nec-1. Taken together, our results highlight the important protective effect of Nrf2 in radiation-induced rectal injury through the inhibition of necroptosis, and the physiological significance of necroptosis in radiation-induced rectal injury.
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Affiliation(s)
- Yiqing Xu
- Department of Radiation Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Wenzhi Tu
- Department of Radiation Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Di Sun
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Xuming Chen
- Department of Radiation Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Yulong Ge
- Department of Radiation Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Shengyu Yao
- Department of Radiation Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Bing Li
- Research Center for Clinical Medicine, Jinshan Hospital Affiliated to Fudan University, Shanghai, 201508, China.
| | - Zhenbo Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China.
| | - Yong Liu
- Department of Radiation Oncology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China.
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14
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Thermozier S, Hou W, Zhang X, Shields D, Fisher R, Bayir H, Kagan V, Yu J, Liu B, Bahar I, Epperly MW, Wipf P, Wang H, Huq MS, Greenberger JS. Anti-Ferroptosis Drug Enhances Total-Body Irradiation Mitigation by Drugs that Block Apoptosis and Necroptosis. Radiat Res 2020; 193:435-450. [PMID: 32134361 DOI: 10.1667/rr15486.1] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Mitigation of total-body irradiation (TBI) in C57BL/6 mice by two drugs, which target apoptosis and necroptosis respectively, increases survival compared to one drug alone. Here we investigated whether the biomarker (signature)directed addition of a third anti-ferroptosis drug further mitigated TBI effects. C57BL/6NTac female mice (30-33 g) received 9.25 Gy TBI, and 24 h or later received JP4-039 (20 mg/kg), necrostatin-1 (1.65 mg/kg) and/or lipoxygenase-15 inhibitor (baicalein) (50 mg/kg) in single-, dual- or three-drug regimens. Some animals were sacrificed at days 0, 1, 2, 3, 4 or 7 postirradiation, while the majority in each group were maintained beyond 30 days. For those mice sacrificed at the early time points, femur bone marrow, intestine (ileum), lung and blood plasma were collected and analyzed for radiation-induced and mitigator-modified levels of 33 pro-inflammatory and stress response proteins. Each single mitigator administered [JP4-039 (24 h), necrostatin-1 (48 h) or baicalein (24 h)] improved survival at day 30 after TBI to 25% (P = 0.0432, 0.2816 or 0.1120, respectively) compared to 5% survival of 9.25 Gy TBI controls. Mice were administered the drug individually based on weight (mg/kg). Drug vehicles comprised 30% cyclodextrin for JP4-039 and baicalein, and 10% Cremphor-EL/10% ethanol/80% water for necrostatin-1; thus, dual-vehicle controls were also tested. The dual-drug combinations further enhanced survival: necrostatin-1 (delayed to 72 h) with baicalein 40% (P = 0.0359); JP4-039 with necrostatin-1 50% (P = 0.0062); and JP4-039 with baicalein 60% (P = 0.0064). The three-drug regimen, timed to signature directed evidence of onset after TBI of each death pathway in marrow and intestine, further increased the 30-day survival to 75% (P = 0.0002), and there was optimal normalization to preirradiation levels of inflammatory cytokine and stress response protein levels in plasma, intestine and marrow. In contrast, lung protein levels were minimally altered by 9.25 Gy TBI or mitigators over 7 days. Significantly, elevated intestinal proteins at day 7 after TBI were reduced by necrostatin-1-containing regimens; however, normalization of plasma protein levels at day 7 required the addition of JP4-039 and baicalein. These findings indicate that mitigator targeting to three distinct cell death pathways increases survival after TBI.
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Affiliation(s)
- Stephanie Thermozier
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | - Xichen Zhang
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | | | | | | | - Bing Liu
- Departments of Computational and Biology Systems
| | - Ivet Bahar
- Departments of Computational and Biology Systems
| | - Michael W Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | | | - Hong Wang
- Departments of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - M Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
| | - Joel S Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232
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15
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Scheurer MJ, Seher A, Steinacker V, Linz C, Hartmann S, Kübler AC, Müller-Richter UD, Brands RC. Targeting inhibitors of apoptosis in oral squamous cell carcinoma in vitro. J Craniomaxillofac Surg 2019; 47:1589-1599. [DOI: 10.1016/j.jcms.2019.07.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/24/2019] [Accepted: 07/14/2019] [Indexed: 10/26/2022] Open
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16
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Simader E, Beer L, Laggner M, Vorstandlechner V, Gugerell A, Erb M, Kalinina P, Copic D, Moser D, Spittler A, Tschachler E, Jan Ankersmit H, Mildner M. Tissue-regenerative potential of the secretome of γ-irradiated peripheral blood mononuclear cells is mediated via TNFRSF1B-induced necroptosis. Cell Death Dis 2019; 10:729. [PMID: 31570701 PMCID: PMC6768878 DOI: 10.1038/s41419-019-1974-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/05/2019] [Accepted: 09/09/2019] [Indexed: 12/14/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) have been shown to produce and release a plethora of pro-angiogenetic factors in response to γ-irradiation, partially accounting for their tissue-regenerative capacity. Here, we investigated whether a certain cell subtype of PBMCs is responsible for this effect, and whether the type of cell death affects the pro-angiogenic potential of bioactive molecules released by γ-irradiated PBMCs. PBMCs and PBMC subpopulations, including CD4+ and CD8+ T cells, B cells, monocytes, and natural killer cells, were isolated and subjected to high-dose γ-irradiation. Transcriptome analysis revealed subpopulation-specific responses to γ-irradiation with distinct activation of pro-angiogenic pathways, cytokine production, and death receptor signalling. Analysis of the proteins released showed that interactions of the subsets are important for the generation of a pro-angiogenic secretome. This result was confirmed at the functional level by the finding that the secretome of γ-irradiated PBMCs displayed higher pro-angiogenic activity in an aortic ring assay. Scanning electron microscopy and image stream analysis of γ-irradiated PBMCs revealed distinct morphological changes, indicative for apoptotic and necroptotic cell death. While inhibition of apoptosis had no effect on the pro-angiogenic activity of the secretome, inhibiting necroptosis in stressed PBMCs abolished blood vessel sprouting. Mechanistically, we identified tumor necrosis factor (TNF) receptor superfamily member 1B as the main driver of necroptosis in response to γ-irradiation in PBMCs, which was most likely mediated via membrane-bound TNF-α. In conclusion, our study demonstrates that the pro-angiogenic activity of the secretome of γ-irradiated PBMCs requires interplay of different PBMC subpopulations. Furthermore, we show that TNF-dependent necroptosis is an indispensable molecular process for conferring tissue-regenerative activity and for the pro-angiogenic potential of the PBMC secretome. These findings contribute to a better understanding of secretome-based therapies in regenerative medicine.
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Affiliation(s)
- Elisabeth Simader
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria.,Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria
| | - Lucian Beer
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria.,Department of Radiology and Cancer Research UK Cambridge Center, Cambridge, CB2 0QQ, UK
| | - Maria Laggner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Vera Vorstandlechner
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Alfred Gugerell
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Michael Erb
- Synlab Analytics and Services Switzerland AG, Birsfelden, Switzerland
| | - Polina Kalinina
- Research Division of Biology and Pathobiology of the SkinDepartment of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria
| | - Dragan Copic
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria.,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria
| | - Doris Moser
- Division of Oral and Maxillofacial Surgery, Medical University of Vienna, Vienna, Austria
| | - Andreas Spittler
- Research Laboratories, Core Facility Flow Cytometry, Medical University of Vienna, Vienna, Austria
| | - Erwin Tschachler
- Research Division of Biology and Pathobiology of the SkinDepartment of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria
| | - Hendrik Jan Ankersmit
- Division of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. .,FFG Project 852748 "APOSEC", Medical University of Vienna, Vienna, Austria. .,Vienna Business Agency Project 2343727 "APOSEC to clinic", Medical University Vienna, Vienna, Austria.
| | - Michael Mildner
- Research Division of Biology and Pathobiology of the SkinDepartment of Dermatology, Research Division of Biology and Pathobiology of the Skin, Medical University of Vienna, Vienna, Austria.
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17
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Thermozier S, Zhang X, Hou W, Fisher R, Epperly MW, Liu B, Bahar I, Wang H, Greenberger JS. Radioresistance of Serpinb3a-/- Mice and Derived Hematopoietic and Marrow Stromal Cell Lines. Radiat Res 2019; 192:267-281. [PMID: 31295086 DOI: 10.1667/rr15379.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Serpins are a group of serine-proteases involved in multiple signal transduction pathways in mammalian cells. In particular, Serpinb3a is involved in the lysosomal necrosis cell death pathway with components that overlap with radiation-induced apoptosis. We investigated the radiation response of Serpinb3a-/- mice compared to Serpinb3a+/+ mice on the Balb/c background. Serpinb3a-/- mice showed significant radioresistance to a dose of 8.0 Gy total-body irradiation, compared to Serpinb3a+/+ Balb/c mice. Long-term bone marrow cultures from Serpinb3a-/- mice showed increased longevity. In clonogenic survival assays, fresh bone marrow hematopoietic progenitors, as well as clonal interleukin-3 (IL-3)-dependent hematopoietic progenitor and bone marrow stromal cell lines from Serpinb3a-/- mice were radioresistant. Serpinb3a-/- mouse bone marrow-derived stromal cell lines had increased baseline and postirradiation antioxidant capacity. Serpinb3a-/- bone marrow stromal cells showed increased radiation-induced RNA transcripts for MnSOD and p21, and decreased levels of p53 and TGF-b. Both irradiated Serpinb3a-/- mouse bone marrow stromal cell lines and plasma removed from total-body irradiated mice had decreased levels of expression of stress response and inflammation-associated proteins. Abrogation of Serpinb3a may be a potential new target for mitigation of radiation effects.
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Affiliation(s)
- Stephanie Thermozier
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15213
| | - Xichen Zhang
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15213
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15213
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15213
| | - Michael W Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15213
| | - Bing Liu
- Department of Computational Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Ivet Bahar
- Department of Computational Biology, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
| | - Joel S Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15213
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18
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Tyurina YY, Shrivastava I, Tyurin VA, Mao G, Dar HH, Watkins S, Epperly M, Bahar I, Shvedova AA, Pitt B, Wenzel SE, Mallampalli RK, Sadovsky Y, Gabrilovich D, Greenberger JS, Bayır H, Kagan VE. "Only a Life Lived for Others Is Worth Living": Redox Signaling by Oxygenated Phospholipids in Cell Fate Decisions. Antioxid Redox Signal 2018; 29:1333-1358. [PMID: 28835115 PMCID: PMC6157439 DOI: 10.1089/ars.2017.7124] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 08/10/2017] [Accepted: 08/18/2017] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Oxygenated polyunsaturated lipids are known to play multi-functional roles as essential signals coordinating metabolism and physiology. Among them are well-studied eicosanoids and docosanoids that are generated via phospholipase A2 hydrolysis of membrane phospholipids and subsequent oxygenation of free polyunsaturated fatty acids (PUFA) by cyclooxygenases and lipoxygenases. Recent Advances: There is an emerging understanding that oxygenated PUFA-phospholipids also represent a rich signaling language with yet-to-be-deciphered details of the execution machinery-oxygenating enzymes, regulators, and receptors. Both free and esterified oxygenated PUFA signals are generated in cells, and their cross-talk and inter-conversion through the de-acylation/re-acylation reactions is not sufficiently explored. CRITICAL ISSUES Here, we review recent data related to oxygenated phospholipids as important damage signals that trigger programmed cell death pathways to eliminate irreparably injured cells and preserve the health of multicellular environments. We discuss the mechanisms underlying the trans-membrane redistribution and generation of oxygenated cardiolipins in mitochondria by cytochrome c as pro-apoptotic signals. We also consider the role of oxygenated phosphatidylethanolamines as proximate pro-ferroptotic signals. FUTURE DIRECTIONS We highlight the importance of sequential processes of phospholipid oxygenation and signaling in disease contexts as opportunities to use their regulatory mechanisms for the identification of new therapeutic targets.
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Affiliation(s)
- Yulia Y. Tyurina
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Indira Shrivastava
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Vladimir A. Tyurin
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Gaowei Mao
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Haider H. Dar
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Simon Watkins
- Department of Cell Biology and Physiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael Epperly
- Radiation Oncology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Anna A. Shvedova
- Exposure Assessment Branch/NIOSH/CDC, West Virginia University, Morgantown, West Virginia
- Department of Physiology and Pharmacology, West Virginia University, Morgantown, West Virginia
| | - Bruce Pitt
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Sally E. Wenzel
- Department of Medicine, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Asthma Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rama K. Mallampalli
- Department of Medicine, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yoel Sadovsky
- Magee Women's Research Institute, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | | | - Hülya Bayır
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Valerian E. Kagan
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
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19
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Castle KD, Daniel AR, Moding EJ, Luo L, Lee CL, Kirsch DG. Mice Lacking RIP3 Kinase are not Protected from Acute Radiation Syndrome. Radiat Res 2018; 189:627-633. [PMID: 29634408 DOI: 10.1667/rr15001.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Exposure to high doses of ionizing radiation can cause lethal injury to normal tissue, thus inducing acute radiation syndrome. Acute radiation syndrome is caused by depletion of bone marrow cells (hematopoietic syndrome) and irreparable damage to the epithelial cells in the gastrointestinal tract (gastrointestinal syndrome). Although radiation initiates apoptosis in the hematopoietic and gastrointestinal compartments within the first few hours after exposure, alternative mechanisms of cell death may contribute to injury in these radiosensitive tissues. In this study, we utilized mice lacking a critical regulator of necroptosis, receptor interacting protein 3 (RIP3) kinase, to characterize the role of RIP3 in normal tissue toxicity after irradiation. Our results suggest that RIP3-mediated signaling is not a critical driver of acute radiation syndrome.
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Affiliation(s)
- Katherine D Castle
- a Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710
| | - Andrea R Daniel
- b Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710
| | - Everett J Moding
- a Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710
| | - Lixia Luo
- b Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710
| | - Chang-Lung Lee
- b Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710
| | - David G Kirsch
- a Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, North Carolina 27710.,b Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710
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20
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Necrostatin-1 Improves Long-term Functional Recovery Through Protecting Oligodendrocyte Precursor Cells After Transient Focal Cerebral Ischemia in Mice. Neuroscience 2018; 371:229-241. [DOI: 10.1016/j.neuroscience.2017.12.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 11/22/2022]
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21
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Steinman J, Epperly M, Hou W, Willis J, Wang H, Fisher R, Liu B, Bahar I, McCaw T, Kagan V, Bayir H, Yu J, Wipf P, Li S, Huq MS, Greenberger JS. Improved Total-Body Irradiation Survival by Delivery of Two Radiation Mitigators that Target Distinct Cell Death Pathways. Radiat Res 2018; 189:68-83. [PMID: 29140165 PMCID: PMC5808408 DOI: 10.1667/rr14787.1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The acute lethality of total-body irradiation (TBI) involves damage to multiple organs, including bone marrow and intestine. Ionizing radiation mitigators that are effective when delivered 24 h or later after TBI include the anti-apoptotic drug, JP4-039 and the anti-necroptotic drug, necrostatin-1. In contrast to effective delivery of JP4-039 at 24 h after TBI, necrostatin-1 is most effective when delivery is delayed until 48 h, a time that correlates with the elevation of necroptosis-inducing inflammatory cytokines and necroptosis-induced serine phosphorylation of receptor-interacting serine/threonine-protein kinase-3 (RIP3) in tissues. The goal of this work was to determine whether administration of JP4-039 influenced the optimal delivery time for necrostatin-1. We measured daily levels of 33 proteins in plasma compared to intestine and bone marrow of C57BL/6NTac female mice over a 7-day time period after 9.25 Gy TBI (LD50/30). Protein responses to TBI in plasma were different from those measured in intestine or bone marrow. In mice that were given JP4-039 at 24 h after TBI, we delayed necrostatin-1 delivery for 72 h after TBI based on measured delay in RIP-3 kinase elevation in marrow and intestine. Sequential delivery of these two radiation mitigator drugs significantly increased survival compared to single drug administration.
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Affiliation(s)
- Justin Steinman
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Michael Epperly
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Wen Hou
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - John Willis
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Hong Wang
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Renee Fisher
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Bing Liu
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Ivet Bahar
- Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Travis McCaw
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Valerian Kagan
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hulya Bayir
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Peter Wipf
- Department ofChemistry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Song Li
- Department of Pharmaceutical Science, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - M. Saiful Huq
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Joel S. Greenberger
- Department of Radiation Oncology, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
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22
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Necroptotic signaling is primed in Mycobacterium tuberculosis-infected macrophages, but its pathophysiological consequence in disease is restricted. Cell Death Differ 2017; 25:951-965. [PMID: 29229989 PMCID: PMC5943269 DOI: 10.1038/s41418-017-0031-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/14/2017] [Accepted: 10/25/2017] [Indexed: 12/29/2022] Open
Abstract
Mixed lineage kinase domain-like (MLKL)-dependent necroptosis is thought to be implicated in the death of mycobacteria-infected macrophages, reportedly allowing escape and dissemination of the microorganism. Given the consequent interest in developing inhibitors of necroptosis to treat Mycobacterium tuberculosis (Mtb) infection, we used human pharmacologic and murine genetic models to definitively establish the pathophysiological role of necroptosis in Mtb infection. We observed that Mtb infection of macrophages remodeled the intracellular signaling landscape by upregulating MLKL, TNFR1, and ZBP1, whilst downregulating cIAP1, thereby establishing a strong pro-necroptotic milieu. However, blocking necroptosis either by deleting Mlkl or inhibiting RIPK1 had no effect on the survival of infected human or murine macrophages. Consistent with this, MLKL-deficiency or treatment of humanized mice with the RIPK1 inhibitor Nec-1s did not impact on disease outcomes in vivo, with mice displaying lung histopathology and bacterial burdens indistinguishable from controls. Therefore, although the necroptotic pathway is primed by Mtb infection, macrophage necroptosis is ultimately restricted to mitigate disease pathogenesis. We identified cFLIP upregulation that may promote caspase 8-mediated degradation of CYLD, and other necrosome components, as a possible mechanism abrogating Mtb’s capacity to coopt necroptotic signaling. Variability in the capacity of these mechanisms to interfere with necroptosis may influence disease severity and could explain the heterogeneity of Mtb infection and disease.
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23
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Galluzzi L, Kepp O, Chan FKM, Kroemer G. Necroptosis: Mechanisms and Relevance to Disease. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2016; 12:103-130. [PMID: 27959630 DOI: 10.1146/annurev-pathol-052016-100247] [Citation(s) in RCA: 434] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Necroptosis is a form of regulated cell death that critically depends on receptor-interacting serine-threonine kinase 3 (RIPK3) and mixed lineage kinase domain-like (MLKL) and generally manifests with morphological features of necrosis. The molecular mechanisms that underlie distinct instances of necroptosis have just begun to emerge. Nonetheless, it has already been shown that necroptosis contributes to cellular demise in various pathophysiological conditions, including viral infection, acute kidney injury, and cardiac ischemia/reperfusion. Moreover, human tumors appear to obtain an advantage from the downregulation of key components of the molecular machinery for necroptosis. Although such an advantage may stem from an increased resistance to adverse microenvironmental conditions, accumulating evidence indicates that necroptosis-deficient cancer cells are poorly immunogenic and hence escape natural and therapy-elicited immunosurveillance. Here, we discuss the molecular mechanisms and relevance to disease of necroptosis.
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Affiliation(s)
- Lorenzo Galluzzi
- Department of Radiation Oncology, Weill Cornell Medical College, New York, NY 10065; .,Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, 75006 Paris, France; .,INSERM, U1138, 75006 Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 75006 Paris, France.,Université Pierre et Marie Curie/Paris VI, 75006 Paris, France.,Gustave Roussy Comprehensive Cancer Institute, 94805 Villejuif, France
| | - Oliver Kepp
- Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, 75006 Paris, France; .,INSERM, U1138, 75006 Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 75006 Paris, France.,Université Pierre et Marie Curie/Paris VI, 75006 Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Institute, 94805 Villejuif, France;
| | | | - Guido Kroemer
- Equipe 11 labellisée Ligue contre le Cancer, Centre de Recherche des Cordeliers, 75006 Paris, France; .,INSERM, U1138, 75006 Paris, France.,Université Paris Descartes/Paris V, Sorbonne Paris Cité, 75006 Paris, France.,Université Pierre et Marie Curie/Paris VI, 75006 Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Institute, 94805 Villejuif, France; .,Department of Women's and Children's Health, Karolinska Institute, Karolinska University Hospital, 17176 Stockholm, Sweden.,Pôle de Biologie, Hôpital Européen George Pompidou, AP-HP, 75015 Paris, France
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