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Tang S, Botchway BOA, Zhang Y, Wang X, Huang M, Liu X. Resveratrol can improve spinal cord injury by activating Nrf2/HO-1 signaling pathway. Ann Anat 2024; 251:152180. [PMID: 37879499 DOI: 10.1016/j.aanat.2023.152180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/17/2023] [Indexed: 10/27/2023]
Abstract
Spinal cord injury (SCI) often induces severe sensory and motor dysfunction. Oxidative stress is an important pathophysiological process of secondary SCI, and its inhibition could facilitate the alleviation of the injury. Resveratrol is a natural plant polyphenol compound that has significant antioxidant and anti-inflammatory effects. It can inhibit oxidative stress by activating the Nrf2/HO-1 signal pathway. In this report, we analyze the antioxidant effect of resveratrol in SCI, clarify the specific mechanism of action and provide a theoretical basis for the clinical employment of resveratrol for SCI.
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Affiliation(s)
- Shi Tang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | | | - Yong Zhang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Xichen Wang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Min Huang
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China
| | - Xuehong Liu
- Department of Histology and Embryology, School of Medicine, Shaoxing University, Zhejiang, China.
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2
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Shen Y, Li X, Wang H, Wang Y, Tao L, Wang P, Zhang H. Bisphenol A induced neuronal apoptosis and enhanced autophagy in vitro through Nrf2/HO-1 and Akt/mTOR pathways. Toxicology 2023; 500:153678. [PMID: 38006930 DOI: 10.1016/j.tox.2023.153678] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/10/2023] [Accepted: 11/18/2023] [Indexed: 11/27/2023]
Abstract
Bisphenol A (BPA) was traditionally used in epoxy resins and polycarbonate plastics, but it was found to be harmful to human health due to its endocrine-disrupting effects. It can affect various biological functions of human beings and interfere with brain development. However, the neurotoxic mechanisms of BPA on brain development and associated neurodegeneration remain poorly understood. Here, we reported that BPA (100, 250, 500 μM) inhibited cell viability of neural cells PC12, SH-SY5Y and caused dose-dependent cell death. In addition, BPA exposure increased intracellular reactive oxygen species (ROS) and mitochondrial ROS (mtROS) levels, decreased mitochondrial membrane potential, reduced the expression of cytochrome c oxidase IV (COX4), downregulated Bcl-2, and initiated apoptosis. Moreover, BPA treatment resulted in the accumulation of intracellular acidic vacuoles and increased the autophagy marker LC3 II to LC3 I ratio. Furthermore, BPA exposure inhibited Nrf2/ HO-1 and AKT/mTOR pathways and mediated cellular oxidative stress, apoptosis, and excessive autophagy, leading to neuronal degeneration. The interactions between oxidative stress, autophagy, and apoptosis during BPA-induced neurotoxicity remain unclear and require further in vivo confirmation.
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Affiliation(s)
- Yue Shen
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China
| | - Xinying Li
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China
| | - Hongyan Wang
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China
| | - Yicheng Wang
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China
| | - Liqing Tao
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China; School of Life Sciences, Shaoxing University, Shaoxing, Zhejiang, China
| | - Pingping Wang
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China
| | - Heng Zhang
- Neurodegeneration and Neuroregeneration Laboratory, Department of Basic Medicine, School of Medicine, Shaoxing University, Shaoxing, Zhejiang, China; School of Life Sciences, Shaoxing University, Shaoxing, Zhejiang, China.
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3
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Kweon B, Kim DU, Oh JY, Bae GS, Park SJ. Guggulsterone protects against lipopolysaccharide-induced inflammation and lethal endotoxemia via heme oxygenase-1. Int Immunopharmacol 2023; 124:111073. [PMID: 37844468 DOI: 10.1016/j.intimp.2023.111073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/18/2023]
Abstract
Guggulsterone (GS) is a phytosterol used to treat inflammatory diseases. Although many studies have examined the anti-inflammatory activities of GS, the detailed mechanisms of GS in lipopolysaccharide (LPS)-induced inflammation and endotoxemia have not yet been examined. Therefore, we investigated the anti-inflammatory effects of GS on LPS-induced inflammation. In murine peritoneal macrophages, the anti-inflammatory activity of GS was primarily mediated by heme oxygenase-1 (HO-1) induction. HO-1 induction by GS was mediated by GSH depletion and reactive oxygen species (ROS) production. The ROS generated by GS caused the phosphorylation of GSK3β (ser9/21) and p38, leading to the translocation of nuclear factor erythroid-related factor 2 (Nrf2), which ultimately induced HO-1. In addition, GS pretreatment significantly inhibited inducible nitric oxide synthase (iNOS), iNOS-derived NO, and COX-2 protein and mRNA expression, and production of COX-derived prostaglandin PGE2, interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF-α). In a mouse model of endotoxemia, GS treatment prolonged survival and inhibited the expression of inflammatory mediators, including IL-1β, IL-6, and TNF-α. GS treatment also inhibited LPS-induced liver injury. These results suggest that GS-induced HO-1 could exert anti-inflammatory effects via ROS-dependent GSK (ser21/9)-p38 phosphorylation and nuclear translocation of Nrf2.
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Affiliation(s)
- Bitna Kweon
- Department of Pharmacology, School of Korean Medicine, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea
| | - Dong-Uk Kim
- Department of Pharmacology, School of Korean Medicine, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea
| | - Jin-Young Oh
- Department of Pharmacology, School of Korean Medicine, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea
| | - Gi-Sang Bae
- Department of Pharmacology, School of Korean Medicine, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea; Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea.
| | - Sung-Joo Park
- Hanbang Cardio-Renal Syndrome Research Center, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea; Department of Herbology, School of Korean Medicine, Wonkwang University, Iksan, 54538 Jeonbuk, South Korea.
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4
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Sharma A, Singh AK. Molecular mechanism of caloric restriction mimetics-mediated neuroprotection of age-related neurodegenerative diseases: an emerging therapeutic approach. Biogerontology 2023; 24:679-708. [PMID: 37428308 DOI: 10.1007/s10522-023-10045-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 06/10/2023] [Indexed: 07/11/2023]
Abstract
Aging-induced neurodegenerative diseases (NDs) are significantly increasing health problem worldwide. It has been well documented that oxidative stress is one of the potential causes of aging and age-related NDs. There are no drugs for the treatment of NDs, therefore there is an immediate necessity for the development of strategies/treatments either to prevent or cure age-related NDs. Caloric restriction (CR) and intermittent fasting have been considered as effective strategies in increasing the healthspan and lifespan, but it is difficult to adhere to these routines strictly, which has led to the development of calorie restriction mimetics (CRMs). CRMs are natural compounds that provide similar molecular and biochemical effects of CR, and activate autophagy process. CRMs have been reported to regulate redox signaling by enhancing the antioxidant defense systems through activation of the Nrf2 pathway, and inhibiting ROS generation through attenuation of mitochondrial dysfunction. Moreover, CRMs also regulate redox-sensitive signaling pathways such as the PI3K/Akt and MAPK pathways to promote neuronal cell survival. Here, we discuss the neuroprotective effects of various CRMs at molecular and cellular levels during aging of the brain. The CRMs are envisaged to become a cornerstone of the pharmaceutical arsenal against aging and age-related pathologies.
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Affiliation(s)
- Apoorv Sharma
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, 201313, India
| | - Abhishek Kumar Singh
- Amity Institute of Neuropsychology and Neurosciences, Amity University Uttar Pradesh, Noida, 201313, India.
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5
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Harada Y. Preface. Biochim Biophys Acta Gen Subj 2023; 1867:130421. [PMID: 37394126 DOI: 10.1016/j.bbagen.2023.130421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/04/2023]
Affiliation(s)
- Yoichiro Harada
- Department of Glyco-Oncology and Medical Biochemistry, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka 541-8567, Japan.
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Wei Y, Gao C, Wang H, Zhang Y, Gu J, Zhang X, Gong X, Hao Z. Mori fructus aqueous extracts attenuates liver injury by inhibiting ferroptosis via the Nrf2 pathway. J Anim Sci Biotechnol 2023; 14:56. [PMID: 37032323 PMCID: PMC10084661 DOI: 10.1186/s40104-023-00845-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Accepted: 01/31/2023] [Indexed: 04/11/2023] Open
Abstract
BACKGROUND Liver fibrosis and hepatocellular carcinogenesis secondary to liver fibrosis are serious liver diseases with no effective treatments. Mori fructus aqueous extracts (MFAEs) have served as successful treatments for many types of liver injury including fibrosis although the molecular mechanisms are unknown at present. PURPOSE To investigate the effect of MFAEs in alleviating acute and chronic liver injury and tried to decipher the underlying mechanism. METHODS AND RESULTS Mice were divided into 5 groups (n = 8) for acute (groups: control, 0.3% CCl4, bifendate (BD), 100 and 200 mg/kg MFAEs, 7 d) and chronic (groups: control, 10% CCl4, BD, 100 and 200 mg/kg MFAEs, 4 weeks) liver injury study. Each mouse was injected intraperitoneally with 10 µL/g corn oil containing CCl4 expect the control group. HepG2 cells were used in vitro study. Eighteen communal components were identified by UPLC-LTQ-Orbitrap-MS. We utilized a mouse model for acute and chronic liver injury using CCl4 and MFAEs administration effectively blocked fibrosis and significantly inhibited inflammation in the liver. MFAEs activated the nuclear factor erythroid derived 2 like 2/heme oxygenase 1 (Nrf2/HO-1) pathway and promoted the synthesis of the antioxidants glutathione (GSH), superoxidedismutase (SOD) and glutathione peroxidase (GSH-Px) that resulted in reduced levels of CCl4-induced oxidative stress molecules including reactive oxygen species. These extracts administered to mice also inhibited ferroptosis in the liver by regulating the expression of Acyl-CoA synthetase long chain family member 4 (ACSL4), solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4), thus reducing the occurrence of liver fibrosis. Both in vivo and in vitro tests indicated that the mechanism of MFAEs protection against liver fibrosis was linked to activation of Nrf2 signaling. These effects were blocked in vitro by the addition of a specific Nrf2 inhibitor. CONCLUSION MFAEs inhibited oxidative stress, ferroptosis and inflammation of the liver by activating Nrf2 signal pathway and provided a significant protective effect against CCl4-induced liver fibrosis.
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Affiliation(s)
- Yuanyuan Wei
- Innovation Centre of Chinese veterinary medicine, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- National Center of Technology Innovation for Medicinal function of Food, National Food and Strategic Reserves Administration, Beijing, China
| | - Chen Gao
- Innovation Centre of Chinese veterinary medicine, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- National Center of Technology Innovation for Medicinal function of Food, National Food and Strategic Reserves Administration, Beijing, China
| | - Huiru Wang
- Innovation Centre of Chinese veterinary medicine, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- National Center of Technology Innovation for Medicinal function of Food, National Food and Strategic Reserves Administration, Beijing, China
| | - Yannan Zhang
- Innovation Centre of Chinese veterinary medicine, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- National Center of Technology Innovation for Medicinal function of Food, National Food and Strategic Reserves Administration, Beijing, China
| | - Jinhua Gu
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- China Institute of Veterinary Drug Control, Beijing, 100081, China
| | - Xiuying Zhang
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- China Institute of Veterinary Drug Control, Beijing, 100081, China
| | - Xuhao Gong
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China
- China Institute of Veterinary Drug Control, Beijing, 100081, China
| | - Zhihui Hao
- Innovation Centre of Chinese veterinary medicine, College of Veterinary Medicine, China Agricultural University, No. 2 Yuanmingyuan West Road, Beijing, 100193, China.
- Key Biology Laboratory of Chinese Veterinary Medicine, Ministry of Agriculture and Rural Affairs, Beijing, 100193, P. R. China.
- National Center of Technology Innovation for Medicinal function of Food, National Food and Strategic Reserves Administration, Beijing, China.
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Permana AD, Sam A, Marzaman ANF, Rahim A, Nainu F, Bahar MA, Asri RM, Chabib L. Solid lipid nanoparticles cyclodextrin-decorated incorporated into gellan gum-based dry floating in situ delivery systems for controlled release of bioactive compounds of safflower (Carthamus tinctorius. L): A proof of concept study in biorelevant media. Int J Biol Macromol 2023; 237:124084. [PMID: 36940768 DOI: 10.1016/j.ijbiomac.2023.124084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/22/2023]
Abstract
Safflower (Carthamus tinctorius L.) has been explored as a source of natural antioxidant. However, quercetin 7-O-beta-D-glucopyranoside and luteolin 7-O-beta-D-glucopyranoside, as its bioactive compounds, possessed poor aqueous solubility, limiting its efficacy. Here, we developed solid lipid nanoparticles (SLNs) decorated with hydroxypropyl beta-cyclodextrin (HPβCD) incorporated into dry floating gel in situ systems to control the release of both compounds. Using Geleol® as a lipid matrix, SLNs were <200 nm in size with >80 % of encapsulation efficiency. Importantly, following the decoration using HPβCD, the stability of SLNs in gastric environment was significantly improved. Furthermore, the solubility of both compounds was also enhanced. The incorporation of SLNs into gellan gum-based floating gel in situ provided desired flow and floating properties, with <30 s gelation time. The floating gel in situ system could control the release of bioactive compounds in FaSSGF (Fasted-State Simulated Gastric Fluid). Furthermore, to assess the effect of food intake on release behavior, we found that the formulation could show a sustained release pattern in FeSSGF (Fed-State Simulated Gastric Fluid) for 24 h after being released in FaSGGF for 2 h. This indicated that this combination approach could be a promising oral delivery for bioactive compounds in safflower.
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Affiliation(s)
- Andi Dian Permana
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia.
| | - Anwar Sam
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | | | - Abdul Rahim
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Firzan Nainu
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | - Muh Akbar Bahar
- Faculty of Pharmacy, Hasanuddin University, Makassar 90245, Indonesia
| | | | - Lutfi Chabib
- Department of Pharmacy, Universitas Islam Indonesia, Yogyakarta 55584, Indonesia
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Zhai J, Kongsberg WH, Pan Y, Hao C, Wang X, Sun J. Caloric restriction induced epigenetic effects on aging. Front Cell Dev Biol 2023; 10:1079920. [PMID: 36712965 PMCID: PMC9880295 DOI: 10.3389/fcell.2022.1079920] [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: 10/25/2022] [Accepted: 12/31/2022] [Indexed: 01/15/2023] Open
Abstract
Aging is the subject of many studies, facilitating the discovery of many interventions. Epigenetic influences numerous life processes by regulating gene expression and also plays a crucial role in aging regulation. Increasing data suggests that dietary changes can alter epigenetic marks associated with aging. Caloric restriction (CR)is considered an intervention to regulate aging and prolong life span. At present, CR has made some progress by regulating signaling pathways associated with aging as well as the mechanism of action of intercellular signaling molecules against aging. In this review, we will focus on autophagy and epigenetic modifications to elaborate the molecular mechanisms by which CR delays aging by triggering autophagy, epigenetic modifications, and the interaction between the two in caloric restriction. In order to provide new ideas for the study of the mechanism of aging and delaying aging.
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Affiliation(s)
| | | | | | | | | | - Jie Sun
- *Correspondence: Xiaojing Wang, ; Jie Sun,
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Suman S, Fornace AJ. Countermeasure development against space radiation-induced gastrointestinal carcinogenesis: Current and future perspectives. LIFE SCIENCES IN SPACE RESEARCH 2022; 35:53-59. [PMID: 36336370 DOI: 10.1016/j.lssr.2022.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/06/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
A significantly higher probability of space radiation-induced gastrointestinal (GI) cancer incidence and mortality after a Mars mission has been projected using biophysical and statistical modeling approaches, and may exceed the current NASA mandated limit of less than 3% REID (risk of exposure-induced death). Since spacecraft shielding is not fully effective against heavy-ion space radiation, there is an unmet need to develop an effective medical countermeasure (MCM) strategy against heavy-ion space radiation-induced GI carcinogenesis to safeguard astronauts. In the past, we have successfully applied a GI cancer mouse model approach to understand space radiation-induced GI cancer risk and associated molecular signaling events. We have also tested several potential MCMs to safeguard astronauts during and after a prolonged space mission. In this review, we provide an updated summary of MCM testing using the GI cancer mouse model approach, lessons learned, and a perspective on the senescence signaling targeting approach for desirable protection against space radiation-induced GI carcinogenesis. Furthermore, we also discuss some of the advanced senotherapeutic candidates/combinations as a potential MCM for space radiation-induced GI carcinogenesis.
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Affiliation(s)
- Shubhankar Suman
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Research Building, Room E504, 3970 Reservoir Rd., NW, Washington D. C. 20057, USA.
| | - Albert J Fornace
- Department of Oncology and Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Research Building, Room E504, 3970 Reservoir Rd., NW, Washington D. C. 20057, USA; Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington D. C. 20057, USA
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Panconesi R, Widmer J, Carvalho MF, Eden J, Dondossola D, Dutkowski P, Schlegel A. Mitochondria and ischemia reperfusion injury. Curr Opin Organ Transplant 2022; 27:434-445. [PMID: 35950880 DOI: 10.1097/mot.0000000000001015] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW This review describes the role of mitochondria in ischemia-reperfusion-injury (IRI). RECENT FINDINGS Mitochondria are the power-house of our cells and play a key role for the success of organ transplantation. With their respiratory chain, mitochondria are the main energy producers, to fuel metabolic processes, control cellular signalling and provide electrochemical integrity. The mitochondrial metabolism is however severely disturbed when ischemia occurs. Cellular energy depletes rapidly and various metabolites, including Succinate accumulate. At reperfusion, reactive oxygen species are immediately released from complex-I and initiate the IRI-cascade of inflammation. Prior to the development of novel therapies, the underlying mechanisms should be explored to target the best possible mitochondrial compound. A clinically relevant treatment should recharge energy and reduce Succinate accumulation before organ implantation. While many interventions focus instead on a specific molecule, which may inhibit downstream IRI-inflammation, mitochondrial protection can be directly achieved through hypothermic oxygenated perfusion (HOPE) before transplantation. SUMMARY Mitochondria are attractive targets for novel molecules to limit IRI-associated inflammation. Although dynamic preservation techniques could serve as delivery tool for new therapeutic interventions, their own inherent mechanism should not only be studied, but considered as key treatment to reduce mitochondrial injury, as seen with the HOPE-approach.
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Affiliation(s)
- Rebecca Panconesi
- General Surgery 2U-Liver Transplant Unit, Department of Surgery, A.O.U. Città della Salute e della Scienza di Torino, University of Turin, Turin
- Hepatobiliary Unit, Careggi University Hospital, University of Florence, Florence, Italy
| | - Jeannette Widmer
- Swiss HPB and Transplant Center, Department of Visceral Surgery and Transplantation, University Hospital Zurich, Zurich, Switzerland
| | | | - Janina Eden
- Swiss HPB and Transplant Center, Department of Visceral Surgery and Transplantation, University Hospital Zurich, Zurich, Switzerland
| | - Daniele Dondossola
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Center for Preclinical Research, Milan, Italy
| | - Philipp Dutkowski
- Swiss HPB and Transplant Center, Department of Visceral Surgery and Transplantation, University Hospital Zurich, Zurich, Switzerland
| | - Andrea Schlegel
- Hepatobiliary Unit, Careggi University Hospital, University of Florence, Florence, Italy
- Swiss HPB and Transplant Center, Department of Visceral Surgery and Transplantation, University Hospital Zurich, Zurich, Switzerland
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Center for Preclinical Research, Milan, Italy
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Miao S, Guo C, Jiang Z, Wei HX, Jiang X, Gu J, Hai Z, Wang T, Liu YH. Development of an Open Microfluidic Platform for Oocyte One-Stop Vitrification with Cryotop Method. BIOSENSORS 2022; 12:766. [PMID: 36140151 PMCID: PMC9496857 DOI: 10.3390/bios12090766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Oocyte vitrification technology is widely used for assisted reproduction and fertility preservation, which requires precise washing sequences and timings of cryoprotectant agents (CPAs) treatment to relieve the osmotic shock to cells. The gold standard Cryotop method is extensively used in oocyte vitrification and is currently the most commonly used method in reproductive centers. However, the Cryotop method requires precise and complex manual manipulation by an embryologist, whose proficiency directly determines the effect of vitrification. Therefore, in this study, an automatic microfluidic system consisting of a novel open microfluidic chip and a set of automatic devices was established as a standardized operating protocol to facilitate the conventional manual Cryotop method and minimize the osmotic shock applied to the oocyte. The proposed open microfluidic system could smoothly change the CPA concentration around the oocyte during vitrification pretreatment, and transferred the treated oocyte to the Cryotop with a tiny droplet. The system better conformed to the operating habits of embryologists, whereas the integration of commercialized Cryotop facilitates the subsequent freezing and thawing processes. With standardized operating procedures, our system provides consistent treatment effects for each operation, leading to comparable survival rate, mitochondrial membrane potential (MMP) and reactive oxygen species (ROS) level of oocytes to the manual Cryotop operations. The vitrification platform is the first reported microfluidic system integrating the function of cells transfer from the processing chip, which avoids the risk of cell loss or damage in a manual operation and ensures the sufficient cooling rate during liquid nitrogen (LN2) freezing. Our study demonstrates significant potential of the automatic microfluidic approach to serve as a facile and universal solution for the vitrification of various precious cells.
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Affiliation(s)
- Shu Miao
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Chenxi Guo
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518005, China
| | - Ze Jiang
- The T Stone Robotics Institute, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hao-Xiang Wei
- The T Stone Robotics Institute, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Xin Jiang
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Jingkai Gu
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518005, China
| | - Zhuo Hai
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518005, China
| | - Tianren Wang
- Shenzhen Key Laboratory of Fertility Regulation, Reproductive Medicine Center, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518005, China
| | - Yun-Hui Liu
- The T Stone Robotics Institute, Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China
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12
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Luís C, Maduro AT, Pereira P, Mendes JJ, Soares R, Ramalho R. Nutritional senolytics and senomorphics: Implications to immune cells metabolism and aging – from theory to practice. Front Nutr 2022; 9:958563. [PMID: 36159455 PMCID: PMC9493043 DOI: 10.3389/fnut.2022.958563] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 08/16/2022] [Indexed: 11/28/2022] Open
Abstract
Aging is a natural physiological process, but one that poses major challenges in an increasingly aging society prone to greater health risks such as diabetes, cardiovascular disease, cancer, frailty, increased susceptibility to infection, and reduced response to vaccine regimens. The loss of capacity for cell regeneration and the surrounding tissue microenvironment itself is conditioned by genetic, metabolic, and even environmental factors, such as nutrition. The senescence of the immune system (immunosenescence) represents a challenge, especially when associated with the presence of age-related chronic inflammation (inflammaging) and affecting the metabolic programming of immune cells (immunometabolism). These aspects are linked to poorer health outcomes and therefore present an opportunity for host-directed interventions aimed at both eliminating senescent cells and curbing the underlying inflammation. Senotherapeutics are a class of drugs and natural products that delay, prevent, or reverse the senescence process – senolytics; or inhibit senescence-associated secretory phenotype – senomorphics. Natural senotherapeutics from food sources – nutritional senotherapeutics – may constitute an interesting way to achieve better age-associated outcomes through personalized nutrition. In this sense, the authors present herein a framework of nutritional senotherapeutics as an intervention targeting immunosenescence and immunometabolism, identifying research gaps in this area, and gathering information on concluded and ongoing clinical trials on this subject. Also, we present future directions and ideation for future clinical possibilities in this field.
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Affiliation(s)
- Carla Luís
- Department of Biomedicine, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Ana T. Maduro
- Department of Biomedicine, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Paula Pereira
- Nutritional Immunology – Clinical and Experimental Lab (NICE Lab), Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz (CiiEM, U4585 FCT), Egas Moniz Higher Education School, Monte de Caparica, Portugal
- Applied Nutrition Study Group (Grupo de Estudos em Nutrição Aplicada – G.E.N.A.-IUEM), Egas Moniz Higher Education School, Monte de Caparica, Portugal
- Instituto Universitário Egas Moniz, Egas Moniz Higher Education School, Monte de Caparica, Portugal
| | - José João Mendes
- Nutritional Immunology – Clinical and Experimental Lab (NICE Lab), Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz (CiiEM, U4585 FCT), Egas Moniz Higher Education School, Monte de Caparica, Portugal
- Instituto Universitário Egas Moniz, Egas Moniz Higher Education School, Monte de Caparica, Portugal
| | - Raquel Soares
- Department of Biomedicine, Faculdade de Medicina da Universidade do Porto, Porto, Portugal
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Renata Ramalho
- Nutritional Immunology – Clinical and Experimental Lab (NICE Lab), Clinical Research Unit, Centro de Investigação Interdisciplinar Egas Moniz (CiiEM, U4585 FCT), Egas Moniz Higher Education School, Monte de Caparica, Portugal
- Applied Nutrition Study Group (Grupo de Estudos em Nutrição Aplicada – G.E.N.A.-IUEM), Egas Moniz Higher Education School, Monte de Caparica, Portugal
- Instituto Universitário Egas Moniz, Egas Moniz Higher Education School, Monte de Caparica, Portugal
- *Correspondence: Renata Ramalho,
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