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Song J, Li Y, Wu K, Hu Y, Fang L. MyD88 and Its Inhibitors in Cancer: Prospects and Challenges. Biomolecules 2024; 14:562. [PMID: 38785969 PMCID: PMC11118248 DOI: 10.3390/biom14050562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/28/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
The interplay between the immune system and cancer underscores the central role of immunotherapy in cancer treatment. In this context, the innate immune system plays a critical role in preventing tumor invasion. Myeloid differentiation factor 88 (MyD88) is crucial for innate immunity, and activation of MyD88 promotes the production of inflammatory cytokines and induces infiltration, polarization, and immune escape of immune cells in the tumor microenvironment. Additionally, abnormal MyD88 signaling induces tumor cell proliferation and metastasis, which are closely associated with poor prognosis. Therefore, MyD88 could serve as a novel tumor biomarker and is a promising target for cancer therapy. Current strategies targeting MyD88 including inhibition of signaling pathways and protein multimerization, have made substantial progress, especially in inflammatory diseases and chronic inflammation-induced cancers. However, the specific role of MyD88 in regulating tumor immunity and tumorigenic mechanisms remains unclear. Therefore, this review describes the involvement of MyD88 in tumor immune escape and disease therapy. In addition, classical and non-classical MyD88 inhibitors were collated to provide insights into potential cancer treatment strategies. Despite several challenges and complexities, targeting MyD88 is a promising avenue for improving cancer treatment and has the potential to revolutionize patient outcomes.
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Affiliation(s)
- Jiali Song
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
| | - Yuying Li
- Ruian People’s Hospital, Wenzhou Medical College Affiliated Third Hospital, Wenzhou 325000, China;
| | - Ke Wu
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
| | - Yan Hu
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
| | - Luo Fang
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China; (J.S.); (K.W.)
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Polat Y, Şengel N, Küçük A, Özdemir Ç, Yığman Z, Balcı AB, Ergörün Aİ, Kavutçu M, Arslan M. Effects of sevoflurane and fullerenol C60 on lower limb ischemia-reperfusion injury in streptozocin-induced diabetic mice. Sci Prog 2024; 107:368504241239444. [PMID: 38614462 PMCID: PMC11016234 DOI: 10.1177/00368504241239444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Abstract
BACKGROUND Ischemia-reperfusion injury (IRI) poses a significant challenge for physicians, necessitating the management of cell damage and the preservation of organ functions. Various surgical procedures, such as vascular surgery on extremities, temporary cross-clamping of the abdominal aorta in aortic surgery, and the use of a tourniquet in extremity surgeries, may induce lower limb IRI. The susceptibility to IRI is heightened in individuals with diabetes. This study aimed to investigate the effects of fullerenol C60 and sevoflurane on mouse muscle tissue in a lower limb IRI model and to assess their potential in preventing complications arising from ischemia-reperfusion in mice with streptozocin-induced diabetes. METHODS A total of 36 adult Swiss albino mice were randomly divided into six groups, each consisting of six mice: control group (group C), diabetes group (group D), diabetes-ischemia/reperfusion group (group DIR), diabetes-ischemia/reperfusion-fullerenol C60 group (group DIR-FC60), diabetes-ischemia/reperfusion-sevoflurane group (group DIR-S), and diabetes-ischemia/reperfusion-sevoflurane-fullerenol C60 group (DIR-S-FC60). Streptozocin (55 mg/kg) was intraperitoneally administered to induce diabetes in the relevant groups, with mice displaying blood glucose levels of 250 mg/dL or higher at 72 h were considered diabetic. After 4 weeks, all groups underwent laparotomy under anesthesia. In DIR-FC60 and DIR-S-FC60 groups, fullerenol C60 (100 mg/kg) was intraperitoneally administrated 30 min before the ischemia period. Sevoflurane, delivered in 100% oxygen at a rate of 2.3% and 4 L/min, was administered during the ischemia period in DIR-S and DIR-S-FC60 groups. In the IR groups, a microvascular clamp was placed on the infrarenal abdominal aorta for 120 min during the ischemia period, followed by the removal of the clamp and a 120-min reperfusion period. At the end of the reperfusion, gastrocnemius muscle tissues were removed for histopathological and biochemical parameter examinations. RESULTS Histopathological examination revealed a significant reduction in the disorganization and degeneration of muscle cells in the DIR-S-FC60 group compared to the DIR group (p = 0.041). Inflammatory cell infiltration was notably lower in the DIR-S, DIR-FC60, and DIR-S-FC60 groups than in the DIR group (p = 0.031, p = 0.011, and p = 0.013, respectively). The total damage scores in the DIR-FC60 and DIR-S-FC60 groups were significantly lower than in the DIR group (p = 0.018 and p = 0.008, respectively). Furthermore, the levels of malondialdehyde (MDA) in the DIR-S, DIR-FC60, and DIR-S-FC60 groups were significantly lower than in the DIR group (p < 0.001, p < 0.001, and p < 0.001, respectively). Catalase (CAT) enzyme activity in the DIR-S, DIR-FC60, and DIR-S-FC60 groups was higher than in the DIR group (p = 0.001, p = 0.014, and p < 0.001, respectively). Superoxide dismutase (SOD) enzyme activity in the DIR-FC60 and DIR-S-FC60 groups was also higher than in the DIR group (p < 0.001 and p = 0.001, respectively). CONCLUSION Our findings indicate that administering fullerenol C60 30 min prior to ischemia in diabetic mice, in combination with sevoflurane, led to a reduction in oxidative stress and the correction of IR-related damage in muscle tissue histopathology. We believe that the administration of fullerenol C60 before IR, coupled with sevoflurane administration during IR, exerts a protective effect in mice.
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Affiliation(s)
- Yücel Polat
- Tekirdağ Dr İsmail Fehmi Cumalıoğlu City Hospital, Department of Cardiovascular Surgery, Tekirdağ, Turkey
| | - Necmiye Şengel
- Gazi University Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, (As a specialist in Anesthesiology and Reanimation), Ankara, Turkey
| | - Ayşegül Küçük
- Kutahya Health Sciences University Faculty of Medicine, Department of Physiology, Kutahya, Turkey
| | - Çağrı Özdemir
- Mamak State Hospital, Department of Anesthesiology and Reanimation, Ankara, Turkey
| | - Zeynep Yığman
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
- Gazi University Neuroscience and Neurotechnology Center of Excellence (NÖROM), Ankara, Turkey
| | | | - Aydan İremnur Ergörün
- Gazi University Faculty of Medicine, Department of Anesthesiology and Reanimation, Ankara, Turkey
| | - Mustafa Kavutçu
- Gazi University Faculty of Medicine, Department of Medical Biochemistry, Ankara, Turkey
| | - Mustafa Arslan
- Gazi University Faculty of Medicine, Department of Anesthesiology and Reanimation, Ankara, Turkey
- Gazi University, Life Sciences Application and Research Center, Ankara, Turkey
- Gazi University, Laboratory Animal Breeding and Experimental Researches Center (GÜDAM), Ankara, Turkey
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Zhao Y, Li B, Cao H, Wang F, Mu M, Jin H, Liu J, Fan Z, Tao X. Maternal nicotine exposure promotes hippocampal CeRNA-mediated excitotoxicity and social barriers in adolescent offspring mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116079. [PMID: 38377778 DOI: 10.1016/j.ecoenv.2024.116079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/18/2024] [Accepted: 02/04/2024] [Indexed: 02/22/2024]
Abstract
Nicotine, an addictive component of cigarettes, causes cognitive defects, particularly when exposure occurs early in life. However, the exact mechanism through which nicotine causes toxicity and alters synaptic plasticity is still not fully understood. The aim of the current study is to examine how non-coding developmental regulatory RNA impacts the hippocampus of mice offspring whose mothers were exposed to nicotine. Female C57BL/6J mice were given nicotine water from one week before pregnancy until end of lactation. Hippocampal tissue from offspring at 20 days post-birth was used for LncRNA and mRNA microarray analysis. Differential expression of LncRNAs and mRNAs associated with neuronal development were screened and validated, and the CeRNA pathway mediating neuronal synaptic plasticity GM13530/miR-7119-3p/mef2c was predicted using LncBase Predicted v.2. Using protein immunoblotting, Golgi staining and behavioral tests, our findings revealed that nicotine exposure in offspring mice increased hippocampal NMDAR receptor, activated receptor-dependent calcium channels, enhanced the formation of NMDAR/nNOS/PSD95 ternary complexes, increased NO synthesis, mediated p38 activation, induced neuronal excitability toxicity. Furthermore, an epigenetic CeRNA regulatory mechanism was identified, which suppresses Mef2c-mediated synaptic plasticity and leads to modifications in the learning and social behavior of the offspring during adolescence. This study uncovers the way in which maternal nicotine exposure results in neurotoxicity in offspring.
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Affiliation(s)
- Yehong Zhao
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Bing Li
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Hangbing Cao
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Fei Wang
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Min Mu
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Haibo Jin
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Jing Liu
- The First Hospital of Anhui University of Science and Technology, Huainan, China
| | - Zhenzhen Fan
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China
| | - Xinrong Tao
- Joint Research Center for Occupational Medicine and Health of IHM, Anhui University of Science and Technology, Huainan 232000, China; Key Laboratory of Industrial Dust Control and Occupational Health of the Ministry of Education, Anhui University of Science and Technology, China; Key Laboratory of Industrial Dust Deep Reduction and Occupational Health and Safety of Anhui Higher Education Institutes, Anhui University of Science and Technology, China; Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, China; School of Medicine, Department of Medical Frontier Experimental Center, Anhui University of Science and Technology, China.
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Hu Q, Qiu L, Ge L, Wei Y. Sevoflurane postconditioning alleviates hypoxic-ischemic brain damage in rats by inhibiting the endoplasmic reticulum stress PERK/ATF4/CHOP pathway. Tissue Cell 2024; 86:102289. [PMID: 38194851 DOI: 10.1016/j.tice.2023.102289] [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: 05/31/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 01/11/2024]
Abstract
Hypoxic-ischemic brain damage (HIBD) frequently induces cognitive impairments. Investigating the role of sevoflurane postconditioning (SPC) in HIBD, we conducted experiments involving HIBD modeling, SPC treatment, and interventions with the PERK inhibitor GSK2656157 or the PERK activator CCT020312, administered 30 min before modeling, followed by SPC treatment. Behavioral testing using the Morris water maze test and Neurological Deficiency Scale (NDS) was conducted. Additionally, Nissl staining assessed hippocampal CA1 area neuronal density, TUNEL staining evaluated hippocampal CA1 area neuronal apoptosis, and Western blot determined hippocampal CA1 area protein levels, including Bax, Bcl-2, p-PERK/PERK, p-eIF2/eIF2, ATF4, CHOP, GRP78, Bax, and Bcl-2 protein levels. Following SPC treatment, HIBD rats exhibited improved spatial learning and memory abilities, reduced neuronal apoptosis, increased neuronal density in the hippocampal CA1 area, elevated Bcl-2 protein level, decreased Bax protein levels, and decreased levels of endoplasmic reticulum stress pathway related proteins (p-PERK/PERK, p-eIF2/eIF2, ATF4, CHOP and GRP78). Pre-modeling treatment with the PERK inhibitor treatment improved outcomes in HIBD rats. However, pre-modeling treatment with the PERK activator CCT020312 counteracted the protective effects of SPC against HIBD in rats. In conclusion, SPC alleviates neuronal apoptosis in the hippocampus CA1 area of HIBD rats by inhibiting the endoplasmic reticulum stress pathway PERK/ATF4/CHOP, thereby mitigating HIBD in rats.
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Affiliation(s)
- Qionghua Hu
- Gansu Prov Hosp, Dept Anesthesiol, Lanzhou 730000, PR China
| | - Lingqin Qiu
- Gansu Prov Hosp, Dept Anesthesiol, Lanzhou 730000, PR China
| | - Li Ge
- Gansu Prov Hosp, Dept Anesthesiol, Lanzhou 730000, PR China
| | - Yi Wei
- Gansu Prov Hosp, Dept Anesthesiol, Lanzhou 730000, PR China.
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Yan K, Li L, Ye S, Xu Q, Ding L. Sevoflurane alleviates oxygen-glucose deprivation/reoxygenation-induced damage in HT22 cells by activating the Keap1/Nrf2/ARE pathway to inhibit oxidative stress. Int J Neurosci 2023:1-8. [PMID: 38108309 DOI: 10.1080/00207454.2023.2286916] [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: 10/26/2023] [Accepted: 11/18/2023] [Indexed: 12/19/2023]
Abstract
Objective: This study aimed to investigate the impact of sevoflurane on oxygen-glucose deprivation/reoxygenation-induced damage in HT22 cells and its associated mechanisms. Methods: HT22 cells were treated with sevoflurane, and an oxygen-glucose deprivation/reoxygenation injury model was established. The HT22 cells were randomly divided into the control group, oxygen-glucose deprivation/reoxygenation group, sevoflurane low-dose group, sevoflurane medium-dose group, and sevoflurane high-dose group. The proliferation of HT22 cells was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The apoptosis rate and mitochondrial membrane potential of HT22 cells were determined by flow cytometry. Protein expression levels of B-cell lymphoma-2-associated X protein (Bax), B-cell lymphoma-2 (Bcl-2), nuclear factor erythroid 2-related factor 2 (Nrf2), Kelch-like ECH-associated protein 1 (Keap1), and heme oxygenase-1 (HO-1) in HT22 cells were examined using Western blot. Reactive oxygen species (ROS) levels were measured with 2',7'-dichlorofluorescin diacetate (DCFH-DA). Malondialdehyde (MDA), glutathione peroxidase (GSH-Px) levels, and superoxide dismutase (SOD) enzyme activity in HT22 cells were determined using assay kits. Results: Compared to controls, OGD/R group had reduced cell viability, mitochondrial potential, Bcl-2, nuclear Nrf2, HO-1, GSH-Px levels, and SOD enzyme activity (p < 0.05), with increased apoptosis, Bax, cytoplasmic Nrf2, ROS, and MDA levels. Sevoflurane groups showed opposite trends (p < 0.05). Conclusion: Sevoflurane can mitigate oxygen-glucose deprivation/reoxygenation-induced damage in HT22 cells, and its mechanism may be related to the activation of the Keap1/Nrf2/ARE pathway to inhibit oxidative stress.
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Affiliation(s)
- Ke Yan
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
| | - Lei Li
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
| | - Siqi Ye
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
| | - Qiao Xu
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
| | - Li Ding
- Department of Anesthesiology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
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