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Kuo PJ, Rau CS, Wu YC, Tsai CW, Wu CJ, Lin CW, Hsieh CH. Translational Potential of Baicalein in Mitigating RSL3-Induced Ferroptosis in Fibroblasts: Implications for Therapeutic Interventions. Int J Med Sci 2024; 21:1257-1264. [PMID: 38818460 PMCID: PMC11134586 DOI: 10.7150/ijms.91940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/19/2024] [Indexed: 06/01/2024] Open
Abstract
Background: Ferroptosis is an iron-driven cell-death mechanism that plays a central role in various diseases. Recent studies have suggested that baicalein inhibits ferroptosis, making it a promising therapeutic candidate. Materials and Methods: Fibroblast cultures were treated with different agents to determine the effects of baicalein on ferroptosis. Ferroptosis-related gene expression, lipid peroxidation, and post-treatment cellular structural changes were measured using real-time quantitative polymerase chain reaction, C11-BODIPY dye, and transmission electron microscopy, respectively. Results: Baicalein significantly inhibited rat sarcoma virus selective lethal 3-induced ferroptosis in fibroblasts. Moreover, in baicalein-treated groups, reduced ferroptosis-related gene expression, decreased lipid peroxidation, and maintained cell structure was observed when compared with those of the controls. Discussion: The ability of baicalein to counteract RSL3-induced ferroptosis underscores its potential protective effects, especially in diseases characterized by oxidative stress and iron overload in fibroblasts. Conclusion: Baicalein may serve as a potent therapeutic agent against conditions in which ferroptosis is harmful. The compound's efficacy in halting RSL3-triggered ferroptosis in fibroblasts paves the way for further in vivo experiments and clinical trials.
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Affiliation(s)
- Pao-Jen Kuo
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Cheng-Shyuan Rau
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Yi-Chan Wu
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Chia-Wen Tsai
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Chia-Jung Wu
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Chia-Wei Lin
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
| | - Ching-Hua Hsieh
- Department of Plastic Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, 83301, Taiwan
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Kerkhove L, Geirnaert F, Dufait I, De Ridder M. Ferroptosis: Frenemy of Radiotherapy. Int J Mol Sci 2024; 25:3641. [PMID: 38612455 PMCID: PMC11011408 DOI: 10.3390/ijms25073641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 04/14/2024] Open
Abstract
Recently, it was established that ferroptosis, a type of iron-dependent regulated cell death, plays a prominent role in radiotherapy-triggered cell death. Accordingly, ferroptosis inducers attracted a lot of interest as potential radio-synergizing drugs, ultimately enhancing radioresponses and patient outcomes. Nevertheless, the tumor microenvironment seems to have a major impact on ferroptosis induction. The influence of hypoxic conditions is an area of interest, as it remains the principal hurdle in the field of radiotherapy. In this review, we focus on the implications of hypoxic conditions on ferroptosis, contemplating the plausibility of using ferroptosis inducers as clinical radiosensitizers. Furthermore, we dive into the prospects of drug repurposing in the domain of ferroptosis inducers and radiosensitizers. Lastly, the potential adverse effects of ferroptosis inducers on normal tissue were discussed in detail. This review will provide an important framework for subsequent ferroptosis research, ascertaining the feasibility of ferroptosis inducers as clinical radiosensitizers.
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Affiliation(s)
| | | | | | - Mark De Ridder
- Department of Radiotherapy, UZ Brussel, Vrije Universiteit Brussel, Laarbeeklaan 101, 1090 Brussels, Belgium; (L.K.); (F.G.); (I.D.)
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Wu YL, Christodoulou AG, Beumer JH, Rigatti LH, Fisher R, Ross M, Watkins S, Cortes DRE, Ruck C, Manzoor S, Wyman SK, Stapleton MC, Goetzman E, Bharathi S, Wipf P, Tan T, Eiseman JL, Christner SM, Guo J, Lo CWY, Epperly MW, Greenberger JS. Mitigation of Fetal Irradiation Injury from Mid-Gestation Total Body Radiation with Mitochondrial-Targeted GS-Nitroxide JP4-039. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.13.580105. [PMID: 38405696 PMCID: PMC10888932 DOI: 10.1101/2024.02.13.580105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Victims of a radiation terrorist event will include pregnant women and unborn fetuses. Mitochondrial dysfunction and oxidative stress are key pathogenic factors of fetal irradiation injury. The goal of this preclinical study is to investigate the efficacy of mitigating fetal irradiation injury by maternal administration of the mitochondrial-targeted gramicidin S (GS)- nitroxide radiation mitigator, JP4-039. Pregnant female C57BL/6NTac mice received 3 Gy total body ionizing irradiation (TBI) at mid-gestation embryonic day 13.5 (E13.5). Using novel time- and-motion-resolved 4D in utero magnetic resonance imaging (4D-uMRI), we found TBI caused extensive injury to the fetal brain that included cerebral hemorrhage, loss of cerebral tissue, and hydrocephalus with excessive accumulation of cerebrospinal fluid (CSF). Histopathology of the fetal mouse brain showed broken cerebral vessels and elevated apoptosis. Further use of novel 4D Oxy-wavelet MRI capable of probing in vivo mitochondrial function in intact brain revealed significant reduction of mitochondrial function in the fetal brain after 3Gy TBI. This was validated by ex vivo Oroboros mitochondrial respirometry. Maternal administration JP4-039 one day after TBI (E14.5), which can pass through the placental barrier, significantly reduced fetal brain radiation injury and improved fetal brain mitochondrial respiration. This also preserved cerebral brain tissue integrity and reduced cerebral hemorrhage and cell death. As JP4-039 administration did not change litter sizes or fetus viability, together these findings indicate JP4-039 can be deployed as a safe and effective mitigator of fetal radiation injury from mid-gestational in utero ionizing radiation exposure. One Sentence Summary Mitochondrial-targeted gramicidin S (GS)-nitroxide JP4-039 is safe and effective radiation mitigator for mid-gestational fetal irradiation injury.
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Hamade DF, Epperly MW, Fisher R, Hou W, Shields D, van Pijkeren JP, Leibowitz BJ, Coffman LG, Wang H, Huq MS, Huang Z, Rogers CJ, Vlad AM, Greenberger JS, Mukherjee A. Genetically Engineered Probiotic Limosilactobacillus reuteri Releasing IL-22 (LR-IL-22) Modifies the Tumor Microenvironment, Enabling Irradiation in Ovarian Cancer. Cancers (Basel) 2024; 16:474. [PMID: 38339228 PMCID: PMC10854600 DOI: 10.3390/cancers16030474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/12/2024] Open
Abstract
Despite recent advances in cancer therapy, ovarian cancer remains the most lethal gynecological cancer worldwide, making it crucial and of the utmost importance to establish novel therapeutic strategies. Adjuvant radiotherapy has been assessed historically, but its use was limited by intestinal toxicity. We recently established the role of Limosilactobacillus reuteri in releasing IL-22 (LR-IL-22) as an effective radiation mitigator, and we have now assessed its effect in an ovarian cancer mouse model. We hypothesized that an LR-IL-22 gavage would enable intestinal radioprotection by modifying the tumor microenvironment and, subsequently, improving overall survival in female C57BL/6MUC-1 mice with widespread abdominal syngeneic 2F8cis ovarian cancer. Herein, we report that the LR-IL-22 gavage not only improved overall survival in mice when combined with a PD-L1 inhibitor by inducing differential gene expression in irradiated stem cells but also induced PD-L1 protein expression in ovarian cancer cells and mobilized CD8+ T cells in whole abdomen irradiated mice. The addition of LR-IL-22 to a combined treatment modality with fractionated whole abdomen radiation (WAI) and systemic chemotherapy and immunotherapy regimens can facilitate a safe and effective protocol to reduce tumor burden, increase survival, and improve the quality of life of a locally advanced ovarian cancer patient.
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Affiliation(s)
- Diala F. Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | | | - Brian J. Leibowitz
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Lan G. Coffman
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA;
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260, USA; (H.W.); (Z.H.)
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Ziyu Huang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260, USA; (H.W.); (Z.H.)
| | | | - Anda M. Vlad
- Division of Cancer Prevention, National Cancer Institute, Rockville, MD 20850, USA;
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
| | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA; (D.F.H.); (M.W.E.); (R.F.); (W.H.); (D.S.); (B.J.L.); (M.S.H.); (J.S.G.)
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Tang LF, Ma X, Xie LW, Zhou H, Yu J, Wang ZX, Li M. Perillaldehyde Mitigates Ionizing Radiation-Induced Intestinal Injury by Inhibiting Ferroptosis via the Nrf2 Signaling Pathway. Mol Nutr Food Res 2023; 67:e2300232. [PMID: 37658487 DOI: 10.1002/mnfr.202300232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/12/2023] [Indexed: 09/03/2023]
Abstract
SCOPE Gastrointestinal toxicity is one of the major side effects of abdominopelvic tumor radiotherapy. Studies have shown that perillaldehyde (PAH) has antioxidant, antiinflammatory, antimicrobial activity, and antitumor effects. This study aims to determine whether PAH has radioprotective effects on radiation-induced intestinal injury and explore the underlying mechanisms. METHODS AND RESULTS C57BL/6J mice are gavaged with PAH for 7 days, then exposed to a single dose of 13 Gy X-ray total abdominal irradiation (TAI). PAH treatment prolongs the survival time, promotes the survival of crypt cells, attenuates radiation-induced DNA damage, and mitigates intestinal barrier damage in the irradiated mice. PAH also shows radioprotective effects in intestinal crypt organoids and human intestinal epithelial cells (HIEC-6). PAH-mediated radioprotection is associated with the upregulation of nuclear factor erythroid-2 related factor 2 (Nrf2), activation of the antioxidant pathway, and inhibition of ferroptosis. Notably, treatment with the Nrf2 inhibitor ML385 abolishes the protective effects of PAH, indicating that Nrf2 activation is essential for PAH activity. CONCLUSION PAH inhibits ionizing radiation (IR)-induced ferroptosis and attenuates intestinal injury after irradiation by activating Nrf2 signaling. Therefore, PAH is a promising therapeutic strategy for IR-induced intestinal injury.
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Affiliation(s)
- Lin-Feng Tang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, 215123, China
- The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China
| | - Xiaoming Ma
- Department of General Surgery, The Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, Jiangsu, 223800, China
| | - Li-Wei Xie
- The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215004, China
| | - Hao Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Jiahua Yu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Zhen-Xin Wang
- Department of Medical Oncology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, 215006, China
| | - Ming Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, Jiangsu, 215123, China
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Chen L, Wang Z, Wu J, Yao Q, Peng J, Zhang C, Chen H, Li Y, Jiang Z, Liu Y, Shi C. Released dsDNA-triggered inflammasomes serve as intestinal radioprotective targets. Clin Transl Immunology 2023; 12:e1452. [PMID: 37333051 PMCID: PMC10276537 DOI: 10.1002/cti2.1452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 05/05/2023] [Accepted: 05/18/2023] [Indexed: 06/20/2023] Open
Abstract
Objectives Intestinal mucositis is the major side effect during abdominal or pelvic radiotherapy, but the underlying immunogen remains to be further characterised and few radioprotective agents are available. This study investigated the role of dsDNA-triggered inflammasomes in intestinal mucositis during radiotherapy. Methods Pro-inflammatory cytokines were detected by ELISA. Radiation-induced intestinal injury in mice was analyzed by means of survival curves, body weight, HE staining of intestines, and intestinal barrier integrity. Western blot, immunofluorescence staining, co-immunoprecipitation assay and flow cytometry were used to investigate the regulatory role of dsDNA on inflammasomes. Results Here, we show that a high level of IL-1β and IL-18 is associated with diarrhoea in colorectal cancer (CRC) patients during radiotherapy, which accounts for intestinal radiotoxicity. Subsequently, we found that the dose-dependently released dsDNA from the intestinal epithelial cells (IECs) serves as the potential immunogenic molecule for radiation-induced intestinal mucositis. Our results further indicate that the released dsDNA transfers into the macrophages in an HMGB1/RAGE-dependent manner and then triggers absent in melanoma 2 (AIM2) inflammasome activation and the IL-1β and IL-18 secretion. Finally, we show that the FDA-approved disulfiram (DSF), a newly identified inflammasome inhibitor, could mitigate intestinal radiotoxicity by controlling inflammasome. Conclusion These findings indicate that the extracellular self-dsDNA released from the irradiated IECs is a potential immunogen to stimulate immune cells and trigger the subsequent intestinal mucositis, while blunting the dsDNA-triggered inflammasome in macrophages may represent an exciting therapeutic strategy for side effects control during abdominal radiotherapy.
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Affiliation(s)
- Long Chen
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
- Shigatse Branch, Xinqiao Hospital, Army 953 HospitalArmy Medical UniversityShigatseChina
| | - Ziwen Wang
- Department of CardiologyGeriatric Cardiovascular Disease Research and Treatment Center, 252 Hospital of PLABaodingChina
| | - Jie Wu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
| | - Quan Yao
- Integrative Cancer Center & Cancer Clinical Research Center, Sichuan Cancer Center, School of Medicine, Sichuan Cancer Hospital & InstituteUniversity of Electronic Science and Technology of ChinaChengduChina
| | - Jingjing Peng
- Department of OncologyWestern Theater General HospitalChengduChina
| | - Chi Zhang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
| | - Hongdan Chen
- Breast and Thyroid Surgical Department, Chongqing General HospitalUniversity of Chinese Academy of SciencesChongqingChina
| | - Yingjie Li
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
| | - Zhongyong Jiang
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
| | - Yunsheng Liu
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
| | - Chunmeng Shi
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Rocket Force MedicineArmy Medical UniversityChongqingChina
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Hamade DF, Epperly MW, Fisher R, Hou W, Shields D, van Pijkeren JP, Mukherjee A, Yu J, Leibowitz BJ, Vlad AM, Coffman L, Wang H, Huq MS, Huang Z, Rogers CJ, Greenberger JS. Release of Interferon-β (IFN-β) from Probiotic Limosilactobacillus reuteri-IFN-β (LR-IFN-β) Mitigates Gastrointestinal Acute Radiation Syndrome (GI-ARS) following Whole Abdominal Irradiation. Cancers (Basel) 2023; 15:1670. [PMID: 36980556 PMCID: PMC10046795 DOI: 10.3390/cancers15061670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/21/2023] [Accepted: 02/28/2023] [Indexed: 03/11/2023] Open
Abstract
Irradiation can be an effective treatment for ovarian cancer, but its use is limited by intestinal toxicity. Thus, strategies to mitigate toxicity are important and can revitalize the current standard of care. We previously established that LR-IL-22 protects the intestine from WAI. We now hypothesize that LR-IFN-β is an effective radiation protector and mitigator and is rapidly cleared from the digestive tract, making it an option for intestinal radioprotection. We report that the gavage of LR-IFN-β during WAI provides improved intestinal barrier integrity and significantly preserves the numbers of Lgr5+GFP+ intestinal stem cells, improving survival. The rapid clearance of the genetically engineered probiotic from the digestive tract renders it a safe and feasible radiation mitigator. Therefore, the above genetically engineered probiotic is both a feasible and effective radiation mitigator that could potentially revolutionize the management of OC patients. Furthermore, the subsequent addition of platinum/taxane-based chemotherapy to the combination of WAI and LR-IFN-β should reduce tumor volume while protecting the intestine and should improve the overall survival in OC patients.
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Affiliation(s)
- Diala F. Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | | | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Brian J. Leibowitz
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Anda M. Vlad
- Department of OB/Gyn and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Lan Coffman
- Department of Medicine, University of Pittsburgh, PA 15260, USA
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
| | - Ziyu Huang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | | | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232, USA
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Role of amyloid beta (25-35) neurotoxicity in the ferroptosis and necroptosis as modalities of regulated cell death in Alzheimer's disease. Neurotoxicology 2023; 94:71-86. [PMID: 36347329 DOI: 10.1016/j.neuro.2022.11.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/26/2022] [Accepted: 11/03/2022] [Indexed: 11/06/2022]
Abstract
Neuronal cell death as a prominent pathological feature contributes to cognitive decline and memory loss in Alzheimer's disease. We investigated the role of two forms of cell death pathways, ferroptosis and necroptosis, and their interactions following entorhinal cortex (EC) amyloidopathy. The Aβ25-35 was bilaterally injected into the rat's EC, and Morris Water Maze was applied to determine spatial performance one week after Aβ injection. For evaluation of ferroptosis and necroptosis involvement in Aβ induced pathology, ferroptosis inhibitor, Ferrostatin (Fer-1), and necroptosis inhibitor, Necrostatin (Nec-1), were injected into the EC during training days of behavioral test. Our behavioral and histological assessment showed spatial learning and memory impairment, along with neuropathology changes such as cell survival and intracellular Aβ deposits in response to EC amyloidopathy, which were ameliorated by treatment with Fer-1 or Nec-1. The expression of ferroptosis key factors GPX4 and SLC7A11 were decreased and the level of TfR was increased following Aβ toxicity. Also, Necroptosis pathway related factors RIP1, RIP3, and MLKL were modulated by Aβ neurotoxicity. However, application of Fer-1 or Nec-1 could inhibit the hippocampal ferroptosis and necroptosis pathways due to EC amyloidopathy. Our data also demonstrated that Aβ-induced necroptosis suppressed by Fer-1, although Nec-1 had no effect on ferroptosis, indicating that ferroptosis pathway is upstream of necroptosis process in the Aβ neurotoxicity. Moreover, Aβ induced hippocampal mGLUR5 overexpression and reduced level of STIM1/2 recovered by Fer-1 or Nec-1. According to our findings ferroptosis and necroptosis pathways are involved in Aβ neurotoxicity through modulation of mGLUR5 and STIM1/2 signaling.
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Tan X, Huang X, Niu B, Guo X, Lei X, Qu B. Targeting GSTP1-dependent ferroptosis in lung cancer radiotherapy: Existing evidence and future directions. Front Mol Biosci 2022; 9:1102158. [PMID: 36589232 PMCID: PMC9800622 DOI: 10.3389/fmolb.2022.1102158] [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: 11/18/2022] [Accepted: 12/06/2022] [Indexed: 12/23/2022] Open
Abstract
Radiotherapy is applied in about 70% patients with tumors, yet radioresistance of tumor cells remains a challenge that limits the efficacy of radiotherapy. Ferroptosis, an iron-dependent lipid peroxidation regulated cell death, is involved in the development of a variety of tumors. Interestingly, there is evidence that ferroptosis inducers in tumor treatment can significantly improve radiotherapy sensitivity. In addition, related studies show that Glutathione S-transferase P1 (GSTP1) is closely related to the development of ferroptosis. The potential mechanism of targeting GSTP1 to inhibit tumor cells from evading ferroptosis leading to radioresistance has been proposed in this review, which implies that GSTP1 may play a key role in radiosensitization of lung cancer via ferroptosis pathway.
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Affiliation(s)
- Xin Tan
- Department of Radiation Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing, China,Medical School of Chinese PLA, Beijing, China
| | - Xiang Huang
- Department of Radiation Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Baolong Niu
- Department of Radiation Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xingdong Guo
- Department of Radiation Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing, China,Medical School of Chinese PLA, Beijing, China
| | - Xiao Lei
- Department of Radiation Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing, China,*Correspondence: Xiao Lei, ; Baolin Qu,
| | - Baolin Qu
- Department of Radiation Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing, China,*Correspondence: Xiao Lei, ; Baolin Qu,
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Mitochondrial Targeted Antioxidant SKQ1 Ameliorates Acute Kidney Injury by Inhibiting Ferroptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2223957. [PMID: 36193064 PMCID: PMC9526623 DOI: 10.1155/2022/2223957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/03/2022] [Indexed: 11/17/2022]
Abstract
Emerging evidence suggests that ferroptosis is highly correlated with the pathogenesis of acute kidney injury (AKI). Ferroptosis, an iron-dependent form of cell death, is manifested by a toxic accumulation of lipid peroxides and ultrastructural changes in mitochondria. We herein investigated the effect of Visomitin (SKQ1), a novel mitochondria-targeting antioxidant, on several AKI models in vivo and in vitro. Our results revealed that SKQ1 treatment greatly reversed renal outcomes in cisplatin, ischemia-reperfusion injury (IRI), or folic acid-induced AKI models. These effects were reflected in attenuated levels of renal injury biomarkers, histologic indices of tubular injury, and inflammatory infiltration in the SKQ1-treated groups. Transcriptomics analysis depicted ferroptosis signaling as the most pronounced pathway downregulated after SKQ1 treatment. Consequently, administration of SKQ1 significantly ameliorated lipid peroxide accumulation and inhibited ferroptosis in the kidneys of mice with AKI. In cultured human proximal tubule epithelial cells (HK2), SKQ1 treatment markedly mitigated cisplatin-induced mitochondrial reactive oxygen species (ROS) production, resulting in lower levels of lipid peroxidation and ferroptosis. In conclusion, SKQ1 treatment protected against ischemic- or nephrotoxic-induced AKI by inhibiting ferroptosis in vivo and in vitro. These results could facilitate a broader understanding of the interaction between mitochondrial antioxidants and ferroptotic defense mechanisms, providing a possible therapeutic strategy in AKI.
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11
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Zhou H, Zhou YL, Mao JA, Tang LF, Xu J, Wang ZX, He Y, Li M. NCOA4-mediated ferritinophagy is involved in ionizing radiation-induced ferroptosis of intestinal epithelial cells. Redox Biol 2022; 55:102413. [PMID: 35932693 PMCID: PMC9356278 DOI: 10.1016/j.redox.2022.102413] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/14/2022] [Accepted: 07/16/2022] [Indexed: 12/11/2022] Open
Abstract
Ferroptosis is a newly recognized form of regulated cell death that is characterized by severe lipid peroxidation initiated by iron overload and the generation of reactive oxygen species (ROS). However, the role of iron in ionizing radiation (IR)-induced intestinal injury has not been fully illustrated yet. In this study, we found that IR induced ferroptosis in intestinal epithelial cells, as indicated by the increase in intracellular iron levels and lipid peroxidation, upregulation of prostaglandin-endoperoxide synthase 2 (PTGS2) mRNA, reduced glutathione peroxidase 4 (GPX4) mRNA and glutathione (GSH) levels, and significant mitochondrial damage. In addition, the iron chelator deferoxamine (DFO) attenuated IR-induced ferroptosis and intestinal injury in vitro and in vivo. Intriguingly, pharmacological inhibition of autophagy with 3-methyladenine (3-MA) mitigated IR-induced ferritin downregulation, iron overload and ferroptosis. IR increased the levels of nuclear receptor coactivator 4 (NCOA4) mRNA and protein. NCOA4 knockdown significantly inhibited the reduction of ferritin, decreased the level of intracellular free iron, and mitigated ferroptosis induced by IR in HIEC cells, indicating that NCOA4-mediated autophagic degradation of ferritin (ferritinophagy) was required for IR-induced ferroptosis. Furthermore, cytoplasmic iron further activated mitoferrin2 (Mfrn2) on the mitochondrial membrane, which in turn increased iron transport into the mitochondria, resulting in increased ROS production and ferroptosis. In addition, mice fed with an iron-deficient diet for 3 weeks showed a significant reversal in the intestinal injury induced by abdominal IR exposure. Taken together, ferroptosis is a novel mechanism of IR-induced intestinal epithelial cytotoxicity, and is dependent on NCOA4-mediated ferritinophagy.
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Affiliation(s)
- Hao Zhou
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Ya-Li Zhou
- MOE Engineering Center of Hematological Disease, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China
| | - Jiu-Ang Mao
- Department of Medical Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Lin-Feng Tang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China
| | - Jie Xu
- MOE Engineering Center of Hematological Disease, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China
| | - Zhen-Xin Wang
- Department of Medical Oncology, The First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
| | - Yang He
- MOE Engineering Center of Hematological Disease, Jiangsu Institute of Hematology, First Affiliated Hospital of Soochow University, Cyrus Tang Hematology Center, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215006, China.
| | - Ming Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
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12
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Hamade DF, Espinal A, Yu J, Leibowitz BJ, Fisher R, Hou W, Shields D, van Pijkeren JP, Mukherjee A, Epperly MW, Vlad A, Coffman L, Wang H, Huq MS, Patel R, Huang J, Greenberger JS. Lactobacillus reuteri Releasing IL-22 (LR-IL-22) Facilitates Intestinal Radioprotection for Whole-Abdomen Irradiation (WAI) of Ovarian Cancer. Radiat Res 2022; 198:89-105. [PMID: 35446961 PMCID: PMC9278541 DOI: 10.1667/rade-21-00224.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/28/2022] [Indexed: 12/13/2022]
Abstract
Oral administration (gavage) of a second-generation probiotic, Lactobacillus reuteri (L. reuteri), that releases interleukin-22 (LR-IL-22) at 24 h after total-body irradiation (TBI) mitigates damage to the intestine. We determined that LR-IL-22 also mitigates partial-body irradiation (PBI) and whole-abdomen irradiation (WAI). Irradiation can be an effective treatment for ovarian cancer, but its use is limited by intestinal toxicity. Strategies to mitigate toxicity are important and can revitalize this modality to treat ovarian cancer. In the present studies, we evaluated whether LR-IL-22 facilitates fractionated WAI in female C57BL/6 mice with disseminated ovarian cancer given a single fraction of either 15.75 Gy or 19.75 Gy or 4 daily fractions of 6 Gy or 6.5 Gy. Mice receiving single or multiple administrations of LR-IL-22 during WAI showed improved intestinal barrier integrity (P = 0.0167), reduced levels of radiation-induced intestinal cytokines including KC/CXCL1 (P = 0.002) and IFN-γ (P = 0.0024), and reduced levels of plasma, Eotaxin/CCL11 (P = 0.0088). LR-IL-22 significantly preserved the numbers of Lgr5+GFP+ intestinal stem cells (P = 0.0010) and improved survival (P < 0.0343). Female C57BL/6MUC-1 mice with widespread abdominal syngeneic 2F8cis ovarian cancer that received LR-IL-22 during 6.5 Gy WAI in 4 fractions had reduced tumor burden, less intestinal toxicity, and improved 30-day survival. Furthermore, LR-IL-22 facilitated WAI when added to Paclitaxel and Carboplatin chemotherapy and further increased survival. Oral administration (gavage) of LR-IL-22 is a potentially valuable intestinal radioprotector, which can facilitate therapeutic WAI for widespread intra-abdominal ovarian cancer.
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Affiliation(s)
- Diala F. Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Alexis Espinal
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15260
| | | | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Wen Hou
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | | | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Anda Vlad
- Department of OB/Gyn and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15260
| | - Lan Coffman
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15260
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15260
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Ravi Patel
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Jason Huang
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, PA 15232
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13
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Espinal A, Epperly MW, Mukherjee A, Fisher R, Shields D, Wang H, Huq MS, Hamade DF, Vlad AM, Coffman L, Buckanovich R, Yu J, Leibowitz BJ, van Pijkeren JP, Patel RB, Stolz D, Watkins S, Ejaz A, Greenberger JS. Intestinal Radiation Protection and Mitigation by Second-Generation Probiotic Lactobacillus-reuteri Engineered to Deliver Interleukin-22. Int J Mol Sci 2022; 23:5616. [PMID: 35628427 PMCID: PMC9145862 DOI: 10.3390/ijms23105616] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/10/2022] [Accepted: 05/12/2022] [Indexed: 12/13/2022] Open
Abstract
(1) Background: The systemic administration of therapeutic agents to the intestine including cytokines, such as Interleukin-22 (IL-22), is compromised by damage to the microvasculature 24 hrs after total body irradiation (TBI). At that time, there is significant death of intestinal microvascular endothelial cells and destruction of the lamina propria, which limits drug delivery through the circulation, thus reducing the capacity of therapeutics to stabilize the numbers of Lgr5+ intestinal crypt stem cells and their progeny, and improve survival. By its direct action on intestinal stem cells and their villus regeneration capacity, IL-22 is both an ionizing irradiation protector and mitigator. (2) Methods: To improve delivery of IL-22 to the irradiated intestine, we gavaged Lactobacillus-reuteri as a platform for the second-generation probiotic Lactobacillus-reuteri-Interleukin-22 (LR-IL-22). (3) Results: There was effective radiation mitigation by gavage of LR-IL-22 at 24 h after intestinal irradiation. Multiple biomarkers of radiation damage to the intestine, immune system and bone marrow were improved by LR-IL-22 compared to the gavage of control LR or intraperitoneal injection of IL-22 protein. (4) Conclusions: Oral administration of LR-IL-22 is an effective protector and mitigator of intestinal irradiation damage.
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Affiliation(s)
- Alexis Espinal
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Amitava Mukherjee
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Renee Fisher
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Donna Shields
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Hong Wang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15232, USA;
| | - M. Saiful Huq
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Diala Fatima Hamade
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Anda M. Vlad
- Department of Obstetrics and Gynecology and Reproductive Sciences, University of Pittsburgh, Pittsburgh, PA 15232, USA;
| | - Lan Coffman
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA; (L.C.); (R.B.)
| | - Ronald Buckanovich
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15232, USA; (L.C.); (R.B.)
| | - Jian Yu
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (J.Y.); (B.J.L.)
| | - Brian J. Leibowitz
- Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (J.Y.); (B.J.L.)
| | | | - Ravi B. Patel
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
| | - Donna Stolz
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (D.S.); (S.W.)
| | - Simon Watkins
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15232, USA; (D.S.); (S.W.)
| | - Asim Ejaz
- Department of Plastic and Reconstructive Surgery, University of Pittsburgh, Pittsburgh, PA 15232, USA;
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA; (A.E.); (M.W.E.); (A.M.); (R.F.); shieldsd+@pitt.edu (D.S.); (M.S.H.); (D.F.H.); (R.B.P.)
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14
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Charaschanya M, Maskrey TS, LaPorte MG, Janjic JM, Wipf P. Synthesis and Optimization of Nitroxide-Based Inhibitors of Ferroptotic Cell Death in Cancer Cells and Macrophages. ACS Med Chem Lett 2022; 13:403-408. [PMID: 35300093 PMCID: PMC8919392 DOI: 10.1021/acsmedchemlett.1c00561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/31/2022] [Indexed: 11/30/2022] Open
Abstract
JP4-039 is an alkene peptide isostere that acts as a low-micromolar inhibitor of erastin- and RSL-3-induced ferroptotic cell death in the HT-1080 cell line. In this work, we have developed new synthetic strategies that allow access to analogues of this lead structure. Enantioselective vinylogous Mannich or cross-metathesis reactions were key to the preparation of a series of analogues that culminated in the preparation of the ca. 30-fold more potent analogue (S)-6c. Structure-activity relationship analyses used both HT-1080 cells and a luminescence-based ferroptosis assay in RAW 264.7 macrophages. In particular, α,α-disubstituted alkene peptide isosteres (Rα ≠ H) were found to exceed the potency of the corresponding glycine (Rα = H) derivatives.
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Affiliation(s)
- Manwika Charaschanya
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Taber S Maskrey
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Matthew G LaPorte
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jelena M Janjic
- Pharmaceutical Sciences, Duquesne University School of Pharmacy, 415 Mellon Hall, Pittsburgh, Pennsylvania 15282, United States.,Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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15
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Wang JP, Li C, Ding WC, Peng G, Xiao GL, Chen R, Cheng Q. Research Progress on the Inflammatory Effects of Long Non-coding RNA in Traumatic Brain Injury. Front Mol Neurosci 2022; 15:835012. [PMID: 35359568 PMCID: PMC8961287 DOI: 10.3389/fnmol.2022.835012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/08/2022] [Indexed: 11/29/2022] Open
Abstract
Globally, traumatic brain injury (TBI) is an acute clinical event and an important cause of death and long-term disability. However, the underlying mechanism of the pathophysiological has not been fully elucidated and the lack of effective treatment a huge burden to individuals, families, and society. Several studies have shown that long non-coding RNAs (lncRNAs) might play a crucial role in TBI; they are abundant in the central nervous system (CNS) and participate in a variety of pathophysiological processes, including oxidative stress, inflammation, apoptosis, blood-brain barrier protection, angiogenesis, and neurogenesis. Some lncRNAs modulate multiple therapeutic targets after TBI, including inflammation, thus, these lncRNAs have tremendous therapeutic potential for TBI, as they are promising biomarkers for TBI diagnosis, treatment, and prognosis prediction. This review discusses the differential expression of different lncRNAs in brain tissue during TBI, which is likely related to the physiological and pathological processes involved in TBI. These findings may provide new targets for further scientific research on the molecular mechanisms of TBI and potential therapeutic interventions.
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Affiliation(s)
- Jian-peng Wang
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Chong Li
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wen-cong Ding
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Gang Peng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Ge-lei Xiao
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Rui Chen
- Department of Neurosurgery, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, China
- *Correspondence: Rui Chen,
| | - Quan Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Quan Cheng,
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16
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Wang L, Wang A, Fu Q, Shi Z, Chen X, Wang Y, Xu W, Wang T, Zhang S, Hu S. Ferroptosis plays an important role in promoting ionizing radiation-induced intestinal injuries. Biochem Biophys Res Commun 2022; 595:7-13. [PMID: 35091109 DOI: 10.1016/j.bbrc.2022.01.068] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/06/2022] [Accepted: 01/18/2022] [Indexed: 01/01/2023]
Abstract
The intestinal tract is an essential component of the body's immune system, and is extremely sensitive to exposure of ionizing radiation. While ionizing radiation can effectively induce multiple forms of cell death, whether it can also promote ferroptosis in intestinal cells and the possible interrelationship between ferroptosis and intestinal immune function has not been reported so far. Here, we found that radiation-induced major ultrastructural changes in mitochondria of small intestinal epithelial cells and the changes induced in iron content and MDA levels in the small intestine were consistent with that observed during cellular ferroptosis, thus suggesting occurrence of ferroptosis in radiation-induced intestinal damage. Moreover, radiation caused a substantial increase in the expression of ferroptosis-related factors such as LPCAT3 and ALOX15 mRNA, augmented the levels of immune-related factors INF-γ and TGF-β mRNA, and decreased the levels of IL-17 mRNA thereby indicating that ionizing radiation induced ferroptosis and impairment of intestinal immune function. Liproxstatin-1 is a ferroptosis inhibitor that was found to ameliorate radiation-induced ferroptosis and promote the recovery from immune imbalances. These findings supported the role of ferroptosis in radiation-induced intestinal immune injury and provide novel strategies for protection against radiation injury through regulation of the ferroptosis pathway.
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MESH Headings
- 1-Acylglycerophosphocholine O-Acyltransferase/genetics
- 1-Acylglycerophosphocholine O-Acyltransferase/metabolism
- Animals
- Arachidonate 12-Lipoxygenase/genetics
- Arachidonate 12-Lipoxygenase/metabolism
- Arachidonate 15-Lipoxygenase/genetics
- Arachidonate 15-Lipoxygenase/metabolism
- Ferroptosis/drug effects
- Ferroptosis/physiology
- Ferroptosis/radiation effects
- Gene Expression/drug effects
- Gene Expression/radiation effects
- Glutathione/metabolism
- Intestine, Small/drug effects
- Intestine, Small/metabolism
- Intestine, Small/radiation effects
- Intestines/drug effects
- Intestines/pathology
- Intestines/radiation effects
- Male
- Malondialdehyde/metabolism
- Mice, Inbred BALB C
- Microscopy, Electron, Transmission
- Mitochondria/drug effects
- Mitochondria/radiation effects
- Mitochondria/ultrastructure
- Quinoxalines/pharmacology
- Radiation Injuries, Experimental/pathology
- Radiation Injuries, Experimental/physiopathology
- Radiation Injuries, Experimental/prevention & control
- Radiation, Ionizing
- Reverse Transcriptase Polymerase Chain Reaction
- Spiro Compounds/pharmacology
- Superoxide Dismutase/metabolism
- Mice
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Affiliation(s)
- Lei Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - An Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Qian Fu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Zhongyu Shi
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xiaoying Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yan Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Wenhui Xu
- Beijing Academy of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Tieshan Wang
- Beijing Academy of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Shujing Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Sumin Hu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
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17
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Dar HH, Epperly MW, Tyurin VA, Amoscato AA, Anthonymuthu TS, Souryavong AB, Kapralov AA, Shurin GV, Samovich SN, St. Croix CM, Watkins SC, Wenzel SE, Mallampalli RK, Greenberger JS, Bayır H, Kagan VE, Tyurina YY. P. aeruginosa augments irradiation injury via 15-lipoxygenase-catalyzed generation of 15-HpETE-PE and induction of theft-ferroptosis. JCI Insight 2022; 7:156013. [PMID: 35041620 PMCID: PMC8876480 DOI: 10.1172/jci.insight.156013] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 01/13/2022] [Indexed: 01/14/2023] Open
Abstract
Total body irradiation (TBI) targets sensitive bone marrow hematopoietic cells and gut epithelial cells, causing their death and inducing a state of immunodeficiency combined with intestinal dysbiosis and nonproductive immune responses. We found enhanced Pseudomonas aeruginosa (PAO1) colonization of the gut leading to host cell death and strikingly decreased survival of irradiated mice. The PAO1-driven pathogenic mechanism includes theft-ferroptosis realized via (a) curbing of the host antiferroptotic system, GSH/GPx4, and (b) employing bacterial 15-lipoxygenase to generate proferroptotic signal - 15-hydroperoxy-arachidonoyl-PE (15-HpETE-PE) - in the intestines of irradiated and PAO1-infected mice. Global redox phospholipidomics of the ileum revealed that lysophospholipids and oxidized phospholipids, particularly oxidized phosphatidylethanolamine (PEox), represented the major factors that contributed to the pathogenic changes induced by total body irradiation and infection by PAO1. A lipoxygenase inhibitor, baicalein, significantly attenuated animal lethality, PAO1 colonization, intestinal epithelial cell death, and generation of ferroptotic PEox signals. Opportunistic PAO1 mechanisms included stimulation of the antiinflammatory lipoxin A4, production and suppression of the proinflammatory hepoxilin A3, and leukotriene B4. Unearthing complex PAO1 pathogenic/virulence mechanisms, including effects on the host anti/proinflammatory responses, lipid metabolism, and ferroptotic cell death, points toward potentially new therapeutic and radiomitigative targets.
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Affiliation(s)
- Haider H. Dar
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael W. Epperly
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Vladimir A. Tyurin
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Andrew A. Amoscato
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Tamil S. Anthonymuthu
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Critical Care Medicine, Safar Center for Resuscitation Research, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Austin B. Souryavong
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Alexander A. Kapralov
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Galina V. Shurin
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Svetlana N. Samovich
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | - Simon C. Watkins
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sally E. Wenzel
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Rama K. Mallampalli
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Joel S. Greenberger
- Department of Radiation Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania, USA
| | - Hülya Bayır
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Department of Critical Care Medicine, Safar Center for Resuscitation Research, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.,Children’s Neuroscience Institute, Children’s Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Valerian E. Kagan
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.,Departments of Pharmacology and Chemical Biology, Chemistry, Radiation Oncology, University of Pittsburgh, Pennsylvania, USA
| | - Yulia Y. Tyurina
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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18
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Chen G, Han Y, Zhang H, Tu W, Zhang S. Radiotherapy-Induced Digestive Injury: Diagnosis, Treatment and Mechanisms. Front Oncol 2021; 11:757973. [PMID: 34804953 PMCID: PMC8604098 DOI: 10.3389/fonc.2021.757973] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Radiotherapy is one of the main therapeutic methods for treating cancer. The digestive system consists of the gastrointestinal tract and the accessory organs of digestion (the tongue, salivary glands, pancreas, liver and gallbladder). The digestive system is easily impaired during radiotherapy, especially in thoracic and abdominal radiotherapy. In this review, we introduce the physical classification, basic pathogenesis, clinical characteristics, predictive/diagnostic factors, and possible treatment targets of radiotherapy-induced digestive injury. Radiotherapy-induced digestive injury complies with the dose-volume effect and has a radiation-based organ correlation. Computed tomography (CT), MRI (magnetic resonance imaging), ultrasound (US) and endoscopy can help diagnose and evaluate the radiation-induced lesion level. The latest treatment approaches include improvement in radiotherapy (such as shielding, hydrogel spacers and dose distribution), stem cell transplantation and drug administration. Gut microbiota modulation may become a novel approach to relieving radiogenic gastrointestinal syndrome. Finally, we summarized the possible mechanisms involved in treatment, but they remain varied. Radionuclide-labeled targeting molecules (RLTMs) are promising for more precise radiotherapy. These advances contribute to our understanding of the assessment and treatment of radiation-induced digestive injury.
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Affiliation(s)
- Guangxia Chen
- Department of Gastroenterology, The First People's Hospital of Xuzhou, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Yi Han
- Department of Gastroenterology, The First People's Hospital of Xuzhou, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Haihan Zhang
- Department of Gastroenterology, The First People's Hospital of Xuzhou, Xuzhou Municipal Hospital Affiliated to Xuzhou Medical University, Xuzhou, China
| | - Wenling Tu
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China
| | - Shuyu Zhang
- The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, China.,West China Second University Hospital, Sichuan University, Chengdu, China
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19
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Contribution of Lipid Oxidation and Ferroptosis to Radiotherapy Efficacy. Int J Mol Sci 2021; 22:ijms222212603. [PMID: 34830482 PMCID: PMC8622791 DOI: 10.3390/ijms222212603] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 01/07/2023] Open
Abstract
Radiotherapy promotes tumor cell death and senescence through the induction of oxidative damage. Recent work has highlighted the importance of lipid peroxidation for radiotherapy efficacy. Excessive lipid peroxidation can promote ferroptosis, a regulated form of cell death. In this review, we address the evidence supporting a role of ferroptosis in response to radiotherapy and discuss the molecular regulators that underlie this interaction. Finally, we postulate on the clinical implications for the intersection of ferroptosis and radiotherapy.
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20
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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: 1] [Impact Index Per Article: 0.3] [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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21
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Abstract
Ferroptosis is an iron-dependent cell death pathway and participates in various diseases. Current evidence suggests that ferroptosis can obviously affect the function of blood cells. This paper aims to elaborate the role of ferroptosis in blood cells and related diseases. First, abnormal ferroptosis damages the developing red blood cells by breaking systemic iron homeostasis, leading to erythropoiesis suppression and anaemia. Ferroptosis mediates neutrophils recruitment and neutrophil extracellular trap formation (NETosis). In T-cells, ferroptosis induces a novel point of synergy between immunotherapy and radiotherapy. Additionally, ferroptosis may mediate B cells differentiation, antibody responses and lymphoma. Nevertheless, increased ferroptosis can ameliorate acute myeloid leukaemia and T-cell leukaemia/lymphoma by inducing iron-dependent cancer cells death. Besides, ferroptosis activates platelets by increasing P-selectin, thus causing thromboembolism. Ferroptosis mediates virus infection and parasite infection by driving T-cell death and preventing T-cell immunity. Interestingly, ferroptosis is also considered as a critical player in COVID-19 infections, while targetting ferroptosis may also improve thromboembolism and prognosis in patients with COVID-19 infection. Overall, the crucial role of ferroptosis in blood cells will show a new therapeutic potential in blood cell-related diseases.HighlightsFerroptosis shows a new therapeutic potential for blood cell-related diseases.Ferroptosis damages erythropoiesis and thus induces anaemia.Ferroptosis induces platelet activation and leads to thromboembolism.Ferroptosis regulates T-cell and B-cell immunity, which participant in infectious diseases.Inversely, ferroptosis ameliorates acute myeloid leukaemia and T-cell leukaemia.
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Affiliation(s)
- Zhe Chen
- Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, China
| | - Jinyong Jiang
- Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, China
| | - Nian Fu
- Department of Gastroenterology, Affiliated Nanhua Hospital, University of South China, Hengyang, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, College of Basic Medical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, China
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22
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Abstract
Significance: Iron is an essential element required for growth and proper functioning of the body. However, an excess of labile ferrous iron increases the risk of oxidative stress-induced injury due to the high reactivity of the unpaired reactive electrons of both ferrous iron and oxygen. This high reactivity can be exemplified in the outside world by one of its consequences, rust formation. In cells, this redox-active iron is involved in the formation of lipid radicals. Recent Advances: Defect or insufficient membrane-protective mechanisms can result in iron-catalyzed excessive lipid peroxidation and subsequent cell death, now conceptualized as ferroptosis. Growing reports propose the detrimental role of iron and ferroptosis in many experimental disease models such as ischemia-reperfusion, acute and chronic organ injuries. Critical Issues: This review first provides a snapshot of iron metabolism, followed by a brief introduction of the molecular mechanisms of ferroptosis, as an iron-dependent lipid peroxidation-driven mode of cell death. Upon describing how iron dysbiosis affects ferroptosis induction, we elaborate on the detrimental role of the iron-ferroptosis axis in several diseases. Future Directions: Despite compelling findings suggesting a role of ferroptosis in experimental animal models, the exact contribution of ferroptosis in human contexts still needs further investigation. Development of reliable ferroptosis biomarkers will be an important step in characterizing ferroptosis in human disease. This can provide therapeutic opportunities aiming at targeting ferroptosis in human diseases. Antioxid. Redox Signal. 35, 487-509.
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Affiliation(s)
- Behrouz Hassannia
- VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology (DBMB), Ghent University, Ghent, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Samya Van Coillie
- VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology (DBMB), Ghent University, Ghent, Belgium
| | - Tom Vanden Berghe
- VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology (DBMB), Ghent University, Ghent, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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23
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Montesinos CA, Khalid R, Cristea O, Greenberger JS, Epperly MW, Lemon JA, Boreham DR, Popov D, Gorthi G, Ramkumar N, Jones JA. Space Radiation Protection Countermeasures in Microgravity and Planetary Exploration. Life (Basel) 2021; 11:life11080829. [PMID: 34440577 PMCID: PMC8398261 DOI: 10.3390/life11080829] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/03/2021] [Accepted: 08/06/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Space radiation is one of the principal environmental factors limiting the human tolerance for space travel, and therefore a primary risk in need of mitigation strategies to enable crewed exploration of the solar system. METHODS We summarize the current state of knowledge regarding potential means to reduce the biological effects of space radiation. New countermeasure strategies for exploration-class missions are proposed, based on recent advances in nutrition, pharmacologic, and immune science. RESULTS Radiation protection can be categorized into (1) exposure-limiting: shielding and mission duration; (2) countermeasures: radioprotectors, radiomodulators, radiomitigators, and immune-modulation, and; (3) treatment and supportive care for the effects of radiation. Vehicle and mission design can augment the overall exposure. Testing in terrestrial laboratories and earth-based exposure facilities, as well as on the International Space Station (ISS), has demonstrated that dietary and pharmacologic countermeasures can be safe and effective. Immune system modulators are less robustly tested but show promise. Therapies for radiation prodromal syndrome may include pharmacologic agents; and autologous marrow for acute radiation syndrome (ARS). CONCLUSIONS Current radiation protection technology is not yet optimized, but nevertheless offers substantial protection to crews based on Lunar or Mars design reference missions. With additional research and human testing, the space radiation risk can be further mitigated to allow for long-duration exploration of the solar system.
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Affiliation(s)
| | - Radina Khalid
- School of Engineering, Rice University, Houston, TX 77005, USA;
| | - Octav Cristea
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, USA;
| | - Joel S. Greenberger
- Department of Radiation Oncology, University of Pittsburg Medical Center, Pittsburgh, PA 15213, USA; (J.S.G.); (M.W.E.)
| | - Michael W. Epperly
- Department of Radiation Oncology, University of Pittsburg Medical Center, Pittsburgh, PA 15213, USA; (J.S.G.); (M.W.E.)
| | - Jennifer A. Lemon
- Medical Sciences Division, Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada; (J.A.L.); (D.R.B.)
| | - Douglas R. Boreham
- Medical Sciences Division, Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada; (J.A.L.); (D.R.B.)
| | - Dmitri Popov
- Advanced Medical Technologies and Systems Inc., Richmond Hill, ON L4B 1N1, Canada;
| | | | - Nandita Ramkumar
- Center for Space Medicine, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Jeffrey A. Jones
- Center for Space Medicine, Department of Urology, Baylor College of Medicine, Houston, TX 77030, USA
- Correspondence:
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24
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Yang M, Li X, Li H, Zhang X, Liu X, Song Y. Baicalein inhibits RLS3-induced ferroptosis in melanocytes. Biochem Biophys Res Commun 2021; 561:65-72. [PMID: 34015760 DOI: 10.1016/j.bbrc.2021.05.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 01/18/2023]
Abstract
We explored the effect of baicalein on the ferroptosis of melanocytes in vitiligo. Melanocytes were treated with single RSL3 or combined RSL3 with FAC for 24 h and the effect of baicalein on RSL3 toxicity was further evaluated. Cell viability was examined by CCK8 assay. The mitochondrial membrane potential and the level of iron ion were measured by assay kit. Intracellular and lipid ROS production was detected by flow cytometry. The results indicated that RSL3 induced cell death, mitochondrial dysfunction, ROS production, and iron ion accumulation in melanocytes, which was aggravated by the addition of FAC. The damage induced by RSL3 was significantly relieved by baicalein treatment. Besides, baicalein up-regulated GPX4 and reduced TFR1 level in melanocytes treated with RSL3+FAC. Baicalein protected melanocytes against ferroptosis through up-regulating GPX4. Ferroptosis might be pervasive in the occurrence and development of vitiligo, and could be proposed as the potential therapeutic target.
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Affiliation(s)
- Meng Yang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, Lixia District, Jinan City, Shandong, 250000, China; Department of Cosmetic Dermatology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, Lixia District, Jinan City, Shandong, 250000, China
| | - Xiangyu Li
- Teaching and Research Department of Traditional Chinese Medicine Surgery, Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, Lixia District, Jinan City, Shandong, 250000, China
| | - Huijie Li
- Department of Oncology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, Lixia District, Jinan City, Shandong, 250000, China
| | - Xiaxia Zhang
- Department of Spinal and Spinal Cord Surgery, Shandong Provincial Third Hospital, No. 12, Wuyingshan Road, Tianqiao District, Jinan, 250000, China
| | - Xiaolu Liu
- Skin and Sexually Transmitted Disease Direction of Traditional Chinese Medicine Surgery, College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, Lixia District, Jinan City, Shandong, 250000, China
| | - Yeqiang Song
- Department of Cosmetic Dermatology, The Affiliated Hospital of Shandong University of Traditional Chinese Medicine, No. 16369, Jingshi Road, Lixia District, Jinan City, Shandong, 250000, China.
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25
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Luo Y, Niu G, Yi H, Li Q, Wu Z, Wang J, Yang J, Li B, Peng Y, Liang Y, Wang W, Peng Z, Shuai X, Guo Y. Nanomedicine promotes ferroptosis to inhibit tumour proliferation in vivo. Redox Biol 2021; 42:101908. [PMID: 33674250 PMCID: PMC8113035 DOI: 10.1016/j.redox.2021.101908] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 01/19/2021] [Accepted: 02/16/2021] [Indexed: 02/07/2023] Open
Abstract
miR-101–3p may play a therapeutic role in various tumours. However, its anti-tumour mechanism remains unclear, and a definitive strategy to treat tumour cells in vivo is lacking. The objective of this study was to investigate the inhibitory mechanism of miR-101–3p on tumour cells and to develop relevant nanomedicines for in vivo therapy. The expression levels of miR-101–3p and its target protein TBLR1 in tumour tissues and cells were detected, and their relationship with ferroptosis was clarified. Furthermore, the efficacy of nanocarriers in achieving in vivo therapeutic gene delivery was evaluated. Nanomedicine was further developed, with the anti-proliferative in vivo therapeutic effect validated using a subcutaneous xenograft cancer model. The expression level of miR-101–3p negatively correlated with clinical tumour size and TNM stage. miR-101–3p restores ferroptosis in tumour cells by directly targeting TBLR1, which in turn promotes apoptosis and inhibits proliferation. We developed nanomedicine that can deliver miR-101–3p to tumour cells in vivo to achieve ferroptosis recovery, as well as to inhibit in vivo tumour proliferation. The miR-101–3p/TBLR1 axis plays an important role in tumour ferroptosis. Nanopharmaceuticals that increase miR-101–3p levels may be effective therapies to inhibit tumour proliferation.
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Affiliation(s)
- Yifeng Luo
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Gang Niu
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Hui Yi
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Qingling Li
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; Department of Internal Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Zhiqiang Wu
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute & Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Tianjin, 300060, China
| | - Jing Wang
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
| | - Juan Yang
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Bo Li
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yuan Peng
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Ying Liang
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; Department of Internal Medicine, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
| | - Weiwei Wang
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhenwei Peng
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
| | - Xintao Shuai
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China; PCFM Lab of Ministry of Education, School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Yu Guo
- Department of General Surgery, Geriatrics, Obstetrics and Gynecology, Division of Pulmonary and Critical Care Medicine, Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
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Zhang X, Tian M, Li X, Zheng C, Wang A, Feng J, Hu X, Chang S, Zhang H. Hematopoietic protection and mechanisms of ferrostatin-1 on hematopoietic acute radiation syndrome of mice. Int J Radiat Biol 2021; 97:464-473. [PMID: 33464146 DOI: 10.1080/09553002.2021.1876956] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE Baicalein (an anti-ferroptosis drug) was recently reported to synergistically improve the survival rate of mice following a high dose of total body irradiation with anti-apoptosis and anti-necroptosis drugs. At the same time, our group has demonstrated that ferrostatin-1, a ferroptosis inhibitor, improves the survival rate of a mouse model of hematopoietic acute radiation syndrome to 60% for 150 days (p < .001). These phenomena suggest that ferroptosis inhibition can mitigate radiation damage. In this study, we continued to study the mechanisms by which ferrostatin-1 alleviated radiation-induced ferroptosis and subsequent hematopoietic acute radiation syndrome. MATERIALS AND METHODS Male ICR mice (8-10 weeks old) were exposed to doses of 0, 8, or 10 Gy irradiated from a 137Cs source. Ferrostatin-1 was intraperitoneally injected into mice 72 h post-irradiation. Bone marrow mononuclear cells (BMMCs) and peripheral blood cells were counted. The changes in iron-related parameters, lipid metabolic enzymes, lipid peroxidation repair molecules (glutathione peroxidase 4, glutathione, and coenzyme Q10), and inflammatory factors (TNF-α, IL-6, and IL-1β) were evaluated using biochemical or antibody techniques. RESULTS Ferrostatin-1 increased the number of red and white blood cells, lymphocytes, and monocytes in the peripheral blood after total body irradiation in mice by mitigating the ferroptosis of BMMCs. Total body irradiation induced ferroptosis in BMMCs by increasing the iron and lipid peroxidation levels and depleting the acyl-CoA synthetase long-chain family member 4 (ASCL4), lipoxygenase 15, glutathione peroxidase 4, and glutathione levels. Ferroptotic BMMCs did not release TNF-α, IL-6, or IL-1β at the early stage of radiation exposure. Ferrostatin-1 mitigated the lipid peroxidation of radiation-induced ferroptosis by attenuating increases in levels of hemosiderin and liable iron pool and decreases in levels of ASCL4 and glutathione peroxidase 4. CONCLUSIONS The onset of total body irradiation-induced ferroptosis in BMMCs involved changes in iron, lipid metabolic enzymes, and anti-lipid peroxidation molecules. Ferrostatin-1 could be a potential radiation mitigation agent by acting on these targets.
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Affiliation(s)
- Xiaohong Zhang
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing City, P. R. China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing City, P.R. China.,Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, P. R. China
| | - Mengxin Tian
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China
| | - Xin Li
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China
| | - Chunyan Zheng
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China
| | - Ailian Wang
- Department of Ophthalmology, First Affiliated Hospital, Bengbu Medical College, Bengbu, P. R. China
| | - Jundong Feng
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing City, P.R. China
| | - Xiaodan Hu
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China
| | - Shuquan Chang
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China.,Key Laboratory of Nuclear Technology Application and Radiation Protection in Astronautics (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing City, P.R. China
| | - Haiqian Zhang
- Department of Nuclear Science and Technology, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing City, P. R. China.,Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing City, P. R. China.,Collaborative Innovation Centre of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, P. R. China
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27
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Nickoloff JA, Taylor L, Sharma N, Kato TA. Exploiting DNA repair pathways for tumor sensitization, mitigation of resistance, and normal tissue protection in radiotherapy. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2021; 4:244-263. [PMID: 34337349 PMCID: PMC8323830 DOI: 10.20517/cdr.2020.89] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
More than half of cancer patients are treated with radiotherapy, which kills tumor cells by directly and indirectly inducing DNA damage, including cytotoxic DNA double-strand breaks (DSBs). Tumor cells respond to these threats by activating a complex signaling network termed the DNA damage response (DDR). The DDR arrests the cell cycle, upregulates DNA repair, and triggers apoptosis when damage is excessive. The DDR signaling and DNA repair pathways are fertile terrain for therapeutic intervention. This review highlights strategies to improve therapeutic gain by targeting DDR and DNA repair pathways to radiosensitize tumor cells, overcome intrinsic and acquired tumor radioresistance, and protect normal tissue. Many biological and environmental factors determine tumor and normal cell responses to ionizing radiation and genotoxic chemotherapeutics. These include cell type and cell cycle phase distribution; tissue/tumor microenvironment and oxygen levels; DNA damage load and quality; DNA repair capacity; and susceptibility to apoptosis or other active or passive cell death pathways. We provide an overview of radiobiological parameters associated with X-ray, proton, and carbon ion radiotherapy; DNA repair and DNA damage signaling pathways; and other factors that regulate tumor and normal cell responses to radiation. We then focus on recent studies exploiting DSB repair pathways to enhance radiotherapy therapeutic gain.
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Affiliation(s)
- Jac A. Nickoloff
- Department of Environmental and Radiological Health Sciences, Colorado State University, Ft. Collins, CO 80523, USA
- Correspondence Address: Dr. Jac A. Nickoloff, Department of Environmental and Radiological Health Sciences, Colorado State University, 1681 Campus Delivery, Ft. Collins, CO 80523-1681, USA. E-mail:
| | - Lynn Taylor
- Department of Environmental and Radiological Health Sciences, Colorado State University, Ft. Collins, CO 80523, USA
| | - Neelam Sharma
- Department of Environmental and Radiological Health Sciences, Colorado State University, Ft. Collins, CO 80523, USA
| | - Takamitsu A. Kato
- Department of Environmental and Radiological Health Sciences, Colorado State University, Ft. Collins, CO 80523, USA
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Xie LW, Cai S, Zhao TS, Li M, Tian Y. Green tea derivative (-)-epigallocatechin-3-gallate (EGCG) confers protection against ionizing radiation-induced intestinal epithelial cell death both in vitro and in vivo. Free Radic Biol Med 2020; 161:175-186. [PMID: 33069855 DOI: 10.1016/j.freeradbiomed.2020.10.012] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 10/06/2020] [Accepted: 10/11/2020] [Indexed: 12/20/2022]
Abstract
Radiation-induced intestinal injury (RIII) occurs during instances of intentional or accidental radiation exposure. However, there are few effective treatments available for the prevention or mitigation of RIII currently. (-)-Epigallocatechin-3-gallate (EGCG), a major polyphenol in green tea, possesses potent antioxidant activity and has been shown to be effective in ameliorating many oxidative stress-related diseases. The therapeutic effects and mechanism of EGCG on RIII have not yet been determined. In the present study, we investigated whether EGCG confers radioprotection against RIII. Our data demonstrated that administration of EGCG not only prolonged the survival time of lethally irradiated mice, but also reduced radiation-induced intestinal mucosal injury. Treatment with EGCG significantly increased the number of Lgr5+ intestinal stem cells (ISCs) and their progeny Ki67+ cells, and reduced radiation-induced DNA damage and apoptosis. Besides, EGCG displayed the same radioprotective effects in human intestinal epithelial HIEC cells as in mice, characterized by a decrease in the number of γH2AX foci and ferroptosis. Moreover, EGCG decreased the level of reactive oxygen species (ROS) and activated the transcription factor Nrf2 and its downstream targets comprising antioxidant proteins Slc7A11, HO-1 and GPX4. Treatment with the Nrf2 inhibitor ML385 abolished the protective effects of EGCG, indicating that Nrf2 activation is essential for EGCG activity. Taken together, our findings demonstrated that EGCG protects against RIII by scavenging ROS and inhibiting apoptosis and ferroptosis through the Nrf2 signal pathway, which could be a promising medical countermeasure for the alleviation of RIII.
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Affiliation(s)
- Li-Wei Xie
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China
| | - Shang Cai
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China
| | - Tian-Shu Zhao
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China
| | - Ming Li
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Medical College of Soochow University, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou, 215123, China.
| | - Ye Tian
- Department of Radiotherapy and Oncology, The Second Affiliated Hospital of Soochow University, Suzhou, 215004, China; Institute of Radiotherapy and Oncology, Soochow University, Suzhou, 215004, China.
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29
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Zhou SY, Cui GZ, Yan XL, Wang X, Qu Y, Guo ZN, Jin H. Mechanism of Ferroptosis and Its Relationships With Other Types of Programmed Cell Death: Insights for Potential Interventions After Intracerebral Hemorrhage. Front Neurosci 2020; 14:589042. [PMID: 33281547 PMCID: PMC7691292 DOI: 10.3389/fnins.2020.589042] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 10/05/2020] [Indexed: 12/12/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a fatal cerebrovascular disease with high morbidity and mortality, for which no effective therapies are currently available. Brain tissue damage caused by ICH is mediated by a newly identified form of non-apoptotic programmed cell death, called ferroptosis. Ferroptosis is characterized by the iron-induced accumulation of lipid reactive oxygen species (ROS), leading to intracellular oxidative stress. Lipid ROS cause damage to nucleic acids, proteins, and cell membranes, eventually resulting in ferroptosis. Numerous biological processes are involved in ferroptosis, including iron metabolism, lipid peroxidation, and glutathione biosynthesis; therefore, iron chelators, lipophilic antioxidants, and other specific inhibitors can suppress ferroptosis, suggesting that these modulators are beneficial for treating brain injury due to ICH. Accumulating evidence indicates that ferroptosis differs from other types of programmed cell death, such as necroptosis, apoptosis, oxytosis, and pyroptosis, in terms of ultrastructural characteristics, signaling pathways, and outcomes. Although several studies have emphasized the importance of ferroptosis due to ICH, the detailed mechanism underlying ferroptosis remains unclear. This review summarizes the available evidence on the mechanism underlying ferroptosis and its relationship with other types of cell death, with the aim to identify therapeutic targets and potential interventions for ICH.
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Affiliation(s)
- Sheng-Yu Zhou
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Guo-Zhen Cui
- Department of Hepatology, Cancer Center, The First Hospital of Jilin University, Changchun, China
| | - Xiu-Li Yan
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Xu Wang
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Yang Qu
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
| | - Zhen-Ni Guo
- Clinical Trial and Research Center for Stroke, Department of Neurology, The First Hospital of Jilin University, Changchun, China
| | - Hang Jin
- Department of Neurology, Stroke Center, The First Hospital of Jilin University, Changchun, China
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Miller SJ, Chittajallu S, Sampson C, Fisher A, Unthank JL, Orschell CM. A Potential Role for Excess Tissue Iron in Development of Cardiovascular Delayed Effects of Acute Radiation Exposure. HEALTH PHYSICS 2020; 119:659-665. [PMID: 32868705 PMCID: PMC7541425 DOI: 10.1097/hp.0000000000001314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Murine hematopoietic-acute radiation syndrome (H-ARS) survivors of total body radiation (TBI) have a significant loss of heart vessel endothelial cells, along with increased tissue iron, as early as 4 mo post-TBI. The goal of the current study was to determine the possible role for excess tissue iron in the loss of coronary artery endothelial cells. Experiments used the H-ARS mouse model with gamma radiation exposure of 853 cGy (LD50/30) and time points from 1 to 12 wk post-TBI. Serum iron was elevated at 1 wk post-TBI, peaked at 2 wk post-TBI, and returned to non-irradiated control values by 4 wk post-TBI. A similar trend was seen for transferrin saturation, and both results correlated inversely with red blood cell number. Perls' Prussian Blue staining, used to detect iron deposition in heart tissue sections, showed myocardial iron was present as early as 2 wk following irradiation. Pretreatment of mice with the iron chelator deferiprone decreased tissue iron but not serum iron at 2 wk. Coronary artery endothelial cell density was significantly decreased as early as 2 wk vs. non-irradiated controls (P<0.05), and the reduced density persisted to 12 wk after irradiation. Deferiprone treatment of irradiated mice prevented the decrease in endothelial cell density at 2 and 4 wk post-TBI compared to irradiated, non-treated mice (P<0.03). Taken together, the results suggest excess tissue iron contributes to endothelial cell loss early following TBI and may be a significant event impacting the development of delayed effects of acute radiation exposure.
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Affiliation(s)
- Steven J Miller
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Supriya Chittajallu
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Carol Sampson
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Alexa Fisher
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Joseph L Unthank
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202-5181
| | - Christie M Orschell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202-5181
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Shi Q, Pei F, Silverman GA, Pak SC, Perlmutter DH, Liu B, Bahar I. Mechanisms of Action of Autophagy Modulators Dissected by Quantitative Systems Pharmacology Analysis. Int J Mol Sci 2020; 21:ijms21082855. [PMID: 32325894 PMCID: PMC7215584 DOI: 10.3390/ijms21082855] [Citation(s) in RCA: 12] [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: 03/25/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 12/12/2022] Open
Abstract
Autophagy plays an essential role in cell survival/death and functioning. Modulation of autophagy has been recognized as a promising therapeutic strategy against diseases/disorders associated with uncontrolled growth or accumulation of biomolecular aggregates, organelles, or cells including those caused by cancer, aging, neurodegeneration, and liver diseases such as α1-antitrypsin deficiency. Numerous pharmacological agents that enhance or suppress autophagy have been discovered. However, their molecular mechanisms of action are far from clear. Here, we collected a set of 225 autophagy modulators and carried out a comprehensive quantitative systems pharmacology (QSP) analysis of their targets using both existing databases and predictions made by our machine learning algorithm. Autophagy modulators include several highly promiscuous drugs (e.g., artenimol and olanzapine acting as activators, fostamatinib as an inhibitor, or melatonin as a dual-modulator) as well as selected drugs that uniquely target specific proteins (~30% of modulators). They are mediated by three layers of regulation: (i) pathways involving core autophagy-related (ATG) proteins such as mTOR, AKT, and AMPK; (ii) upstream signaling events that regulate the activity of ATG pathways such as calcium-, cAMP-, and MAPK-signaling pathways; and (iii) transcription factors regulating the expression of ATG proteins such as TFEB, TFE3, HIF-1, FoxO, and NF-κB. Our results suggest that PKA serves as a linker, bridging various signal transduction events and autophagy. These new insights contribute to a better assessment of the mechanism of action of autophagy modulators as well as their side effects, development of novel polypharmacological strategies, and identification of drug repurposing opportunities.
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Affiliation(s)
- Qingya Shi
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; (Q.S.); (F.P.)
- School of Medicine, Tsinghua University, Beijing 100084, China
| | - Fen Pei
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; (Q.S.); (F.P.)
| | - Gary A. Silverman
- Department of Pediatrics, School of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; (G.A.S.); (S.C.P.); (D.H.P.)
| | - Stephen C. Pak
- Department of Pediatrics, School of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; (G.A.S.); (S.C.P.); (D.H.P.)
| | - David H. Perlmutter
- Department of Pediatrics, School of Medicine, Washington University in St. Louis, St. Louis, MO 63130, USA; (G.A.S.); (S.C.P.); (D.H.P.)
| | - Bing Liu
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; (Q.S.); (F.P.)
- Correspondence: (B.L.); (I.B.)
| | - Ivet Bahar
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA; (Q.S.); (F.P.)
- Correspondence: (B.L.); (I.B.)
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