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Wang A, Zhong G, Ying M, Fang Z, Chen Y, Wang H, Wang C, Liu C, Guo Y. Inhibition of NLRP3 inflammasome ameliorates LPS-induced neuroinflammatory injury in mice via PINK1/Parkin pathway. Neuropharmacology 2024; 257:110063. [PMID: 38972372 DOI: 10.1016/j.neuropharm.2024.110063] [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: 05/15/2024] [Revised: 07/04/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
Parkinson's disease (PD) is characterized by the severe loss of dopaminergic neurons in the substantia nigra pars compacta, leading to motor dysfunction. The onset of PD is often accompanied by neuroinflammation and α-Synuclein aggregation, and extensive research has focused on the activation of microglial NLRP3 inflammasomes in PD, which promotes the death of dopaminergic neurons. In this study, a model of cerebral inflammatory response was constructed in wild-type and Parkin+/- mice through bilateral intraventricular injection of LPS. LPS-induced activation of the NLRP3 inflammasome in wild-type mice promotes the progression of PD. The use of MCC950 in wild mice injected with LPS induces activation of Parkin/PINK and improves autophagy, which in turn improves mitochondrial turnover. It also inhibits LPS-induced inflammatory responses, improves motor function, protects dopaminergic neurons, and inhibits microglia activation. Furthermore, Parkin+/- mice exhibited motor dysfunction, loss of dopaminergic neurons, activation of the NLRP3 inflammasome, and α-Synuclein aggregation beginning at an early age. Parkin ± mice exhibited more pronounced microglia activation, greater NLRP3 inflammasome activation, more severe autophagy dysfunction, and more pronounced motor dysfunction after LPS injection compared to wild-type mice. Notably, the use of MCC950 in Parkin ± mice did not ameliorate NLRP3 inflammasome activation, autophagy dysfunction, or α-synuclein aggregation. Thus, MCC950 can only exert its effects in the presence of Parkin/PINK1, and targeting Parkin-mediated NLRP3 inflammasome activation is expected to be a potential therapeutic strategy for Parkinson's disease.
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Affiliation(s)
- Ao Wang
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Guangshang Zhong
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Mengjiao Ying
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Life Sciences, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Zhuling Fang
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Ying Chen
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Life Sciences, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Haojie Wang
- School of Clinical Medicine, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Chunjing Wang
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Life Sciences, Bengbu Medical University, Bengbu, 233000, Anhui, China
| | - Changqing Liu
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Life Sciences, Bengbu Medical University, Bengbu, 233000, Anhui, China.
| | - Yu Guo
- Anhui Engineering Research Center for Neural Regeneration Technology and Medical New Materials, Bengbu Medical University, Bengbu, 233000, China; School of Laboratory Medicine, Bengbu Medical University, Bengbu, 233000, Anhui, China.
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Xu Y, Wang X, Wang Y, Guo L, Zhao X, Dong M, Wen J, Wu Z, Li C, Mu W, Guo Y, Bai Z, Xiao X. New compatible pair of TCM: Paeoniae Radix Alba effectively alleviate Psoraleae Fructus-induced liver injury by suppressing NLRP3 inflammasome activation. Heliyon 2024; 10:e34591. [PMID: 39130485 PMCID: PMC11315180 DOI: 10.1016/j.heliyon.2024.e34591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/11/2024] [Accepted: 07/12/2024] [Indexed: 08/13/2024] Open
Abstract
Objective Drug-induced liver injury (DILI), a type of acute inflammation, has sparked significant concern owing to its unpredictability and severity. Psoraleae Fructus (PF), an edible Chinese herb widely used in traditional Chinese medicine (TCM), causes liver injury. Therefore, the elucidation of the mechanism underlying PF-induced liver injury and the search for more effective means of detoxification using herbal compatibility has become an urgent issue. This study evaluated the hepatoprotective effects of Paeoniae Radix Alba (PRA), a hepatoprotective Chinese medicine, on PF-induced liver injury and explored the underlying mechanisms. Methods A rat model of lipopolysaccharide (LPS)-induced immune stress was established to evaluate the hepatotoxicity of PF and the detoxifying effect of PRA. Subsequently, inflammatory pathways were identified using network pharmacology. Finally, the molecular mechanism by which PRA alleviates PF-induced liver injury was validated using an inflammasome activation model in bone marrow-derived macrophages (BMDMs). Results In vivo, hepatocytes in rats treated with LPS + PF exhibited massive inflammatory infiltration and apoptosis, and the expression of liver injury indicators and inflammatory factors was significantly upregulated, which was reversed by PRA pretreatment. Network pharmacology showed that PRA alleviated PF-induced liver injury and was associated with the NOD-like receptor signaling pathway. Moreover, PF directly induced inflammasome activation in LPS-primed BMDMs which in turn induced caspase-1 activation and the secretion of downstream effector cytokines such as IL-1β. PRA pretreatment inhibited PF-induced activation of the NLRP3 inflammasome by mitigating the accumulation of mitochondrial reactive oxygen species (mtROS). Conclusions The present study demonstrates that PRA alleviated PF induced-liver injury by inhibiting NLRP3 inflammasome activation. The results of this study are expected to inform the prevention and control of PF-induced hepatotoxicity in clinical practice.
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Affiliation(s)
- Yingjie Xu
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
- School of Pharmacy, Dali University, Dali, 671000, China
| | - Xianling Wang
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yan Wang
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Longxin Guo
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
- School of Pharmacy, Dali University, Dali, 671000, China
| | - Xiaomei Zhao
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Ming Dong
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Jincai Wen
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Zhixin Wu
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Chenyi Li
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
- School of Pharmacy, Dali University, Dali, 671000, China
| | - Wenqing Mu
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yuming Guo
- Department of Infectious Diseases, The Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, 100039, China
| | - Zhaofang Bai
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
- School of Pharmacy, Dali University, Dali, 671000, China
- National Key Laboratory of Kidney Diseases, Beijing, 100039, China
| | - Xiaohe Xiao
- Senior Department of Hepatology, The Fifth Medical Center of PLA General Hospital, Beijing, 100039, China
- China Military Institute of Chinese Materia, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
- School of Pharmacy, Dali University, Dali, 671000, China
- National Key Laboratory of Kidney Diseases, Beijing, 100039, China
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Amelimojarad M, Amelimojarad M, Cui X. The emerging role of brain neuroinflammatory responses in Alzheimer's disease. Front Aging Neurosci 2024; 16:1391517. [PMID: 39021707 PMCID: PMC11253199 DOI: 10.3389/fnagi.2024.1391517] [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: 02/26/2024] [Accepted: 06/19/2024] [Indexed: 07/20/2024] Open
Abstract
As the most common cause of dementia, Alzheimer's disease (AD) is characterized by neurodegeneration and synaptic loss with an increasing prevalence in the elderly. Increased inflammatory responses triggers brain cells to produce pro-inflammatory cytokines and accelerates the Aβ accumulation, tau protein hyper-phosphorylation leading to neurodegeneration. Therefore, in this paper, we discuss the current understanding of how inflammation affects brain activity to induce AD pathology, the inflammatory biomarkers and possible therapies that combat inflammation for AD.
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Affiliation(s)
| | | | - Xiaonan Cui
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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AmeliMojarad M, AmeliMojarad M. The neuroinflammatory role of microglia in Alzheimer's disease and their associated therapeutic targets. CNS Neurosci Ther 2024; 30:e14856. [PMID: 39031970 PMCID: PMC11259573 DOI: 10.1111/cns.14856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/17/2024] [Accepted: 07/02/2024] [Indexed: 07/22/2024] Open
Abstract
INTRODUCTION Alzheimer's disease (AD), the main cause of dementia, is characterized by synaptic loss and neurodegeneration. Amyloid-β (Aβ) accumulation, hyperphosphorylation of tau protein, and neurofibrillary tangles (NFTs) in the brain are considered to be the initiating factors of AD. However, this hypothesis falls short of explaining many aspects of AD pathogenesis. Recently, there has been mounting evidence that neuroinflammation plays a key role in the pathophysiology of AD and causes neurodegeneration by over-activating microglia and releasing inflammatory mediators. METHODS PubMed, Web of Science, EMBASE, and MEDLINE were used for searching and summarizing all the recent publications related to inflammation and its association with Alzheimer's disease. RESULTS Our review shows how inflammatory dysregulation influences AD pathology as well as the roles of microglia in neuroinflammation, the possible microglia-associated therapeutic targets, top neuroinflammatory biomarkers, and anti-inflammatory drugs that combat inflammation. CONCLUSION In conclusion, microglial inflammatory reactions are important factors in AD pathogenesis and need to be discussed in more detail for promising therapeutic strategies.
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Affiliation(s)
- Melika AmeliMojarad
- Department of Bioprocess Engineering, Institute of Industrial and Environmental BiotechnologyNational Institute of Genetic Engineering and BiotechnologyTehranIran
| | - Mandana AmeliMojarad
- Department of Bioprocess Engineering, Institute of Industrial and Environmental BiotechnologyNational Institute of Genetic Engineering and BiotechnologyTehranIran
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Jin J, Kang DH, Lee GH, Kim WM, Choi JI. Intrathecal gastrodin alleviates allodynia in a rat spinal nerve ligation model through NLRP3 inflammasome inhibition. BMC Complement Med Ther 2024; 24:213. [PMID: 38835032 PMCID: PMC11149323 DOI: 10.1186/s12906-024-04519-w] [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: 11/12/2023] [Accepted: 05/24/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND Gastrodin (GAS), a main bioactive component of the herbal plant, Gastrodia elata Blume, has shown to have beneficial effects on neuroinflammatory diseases such as Alzheimer's disease in animal studies and migraine in clinical studies. Inflammasome is a multimeric protein complex having a core of pattern recognition receptor and has been implicated in the development of neuroinflammatory diseases. Gastrodin has shown to modulate the activation of nucleotide-binding oligomerization domain (NOD)-like receptor protein 3 (NLRP3) inflammasome. This study investigated the effects of GAS on the intensity of mechanical allodynia and associated changes in NLRP3 inflammasome expression at the spinal level using L5/6 spinal nerve ligation model (SNL) in rats. METHODS Intrathecal (IT) catheter implantation and SNL were used for drug administration and pain model in male Sprague-Dawley rats. The effect of gastrodin or MCC950 (NLRP3 inflammasome inhibitor) on mechanical allodynia was measured by von Frey test. Changes in NLRP3 inflammasome components and interleukin-1β (IL-1β) and cellular expression were examined in the spinal cord and dorsal root ganglion. RESULTS The expression of NLRP3 inflammasome components was found mostly in the neurons in the spinal cord and dorsal root ganglion. The protein and mRNA levels of NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), caspase-1, and IL-1β were upregulated in SNL animals compared to Sham animals. IT administration of GAS significantly attenuated the expression of NLRP3 inflammasome and the intensity of SNL-induced mechanical allodynia. NLRP3 inflammasome inhibitor, MCC950, also attenuated the intensity of allodynia, but the effect is less strong and shorter than that of GAS. CONCLUSIONS Expression of NLRP3 inflammasome and IL-1β is greatly increased and mostly found in the neurons at the spinal level in SNL model, and IT gastrodin exerts a significant anti-allodynic effect in SNL model partly through suppressing the expression of NLRP3 inflammasome.
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Affiliation(s)
- JunXiu Jin
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, Korea
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Dong Ho Kang
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, Korea
| | - Geon Hui Lee
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, Korea
| | - Woong Mo Kim
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, Korea
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University Medical School, Hwasun, 58128, Korea
| | - Jeong Il Choi
- Department of Anesthesiology and Pain Medicine, Chonnam National University Medical School and Hospital, 42 Jebong-ro, Dong-gu, Gwangju, 61469, Korea.
- BioMedical Sciences Graduate Program (BMSGP), Chonnam National University Medical School, Hwasun, 58128, Korea.
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Jin Y, Song Q, He R, Diao H, Gaoyang H, Wang L, Fan L, Wang D. Nod-like receptor protein 3 inflammasome-mediated pyroptosis contributes to chronic NaAsO 2 exposure-induced fibrotic changes and dysfunction in the liver of SD rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116282. [PMID: 38564859 DOI: 10.1016/j.ecoenv.2024.116282] [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: 09/12/2023] [Revised: 03/25/2024] [Accepted: 03/30/2024] [Indexed: 04/04/2024]
Abstract
The metalloid arsenic, known for its toxic properties, is widespread presence in the environment. Our previous research has confirmed that prolonged exposure to arsenic can lead to liver fibrosis injury in rats, while the precise pathogenic mechanism still requires further investigation. In the past few years, the Nod-like receptor protein 3 (NLRP3) inflammasome has been found to play a pivotal role in the occurrence and development of liver injury. In this study, we administered varying doses of sodium arsenite (NaAsO2) and 10 mg/kg.bw MCC950 (a particular tiny molecular inhibitor targeting NLRP3) to Sprague-Dawley (SD) rats for 36 weeks to explore the involvement of NLRP3 inflammasome in NaAsO2-induced liver injury. The findings suggested that prolonged exposure to NaAsO2 resulted in pyroptosis in liver tissue of SD rats, accompanied by the fibrotic injury, extracellular matrix (ECM) deposition and liver dysfunction. Moreover, long-term NaAsO2 exposure activated NLRP3 inflammasome, leading to the release of pro-inflammatory cytokines in liver tissue. After treatment with MCC950, the induction of NLRP3-mediated pyroptosis and release of pro-inflammatory cytokines were significantly attenuated, leading to a decrease in the severity of liver fibrosis and an improvement in liver function. To summarize, those results clearly indicate that hepatic fibrosis and liver dysfunction induced by NaAsO2 occur through the activation of NLRP3 inflammasome-mediated pyroptosis, shedding new light on the potential mechanisms underlying arsenic-induced liver damage.
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Affiliation(s)
- Ying Jin
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Qian Song
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Rui He
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Heng Diao
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Huijie Gaoyang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Lei Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China
| | - Lili Fan
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China.
| | - Dapeng Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, School of Public Health, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550025, PR China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guiyang, Guizhou 550025, PR China.
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Manshouri S, Seif F, Kamali M, Bahar MA, Mashayekh A, Molatefi R. The interaction of inflammasomes and gut microbiota: novel therapeutic insights. Cell Commun Signal 2024; 22:209. [PMID: 38566180 PMCID: PMC10986108 DOI: 10.1186/s12964-024-01504-1] [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: 09/26/2023] [Accepted: 01/28/2024] [Indexed: 04/04/2024] Open
Abstract
Inflammasomes are complex platforms for the cleavage and release of inactivated IL-1β and IL-18 cytokines that trigger inflammatory responses against damage-associated molecular patterns (DAMPs) or pathogen-associated molecular patterns (PAMPs). Gut microbiota plays a pivotal role in maintaining gut homeostasis. Inflammasome activation needs to be tightly regulated to limit aberrant activation and bystander damage to the host cells. Several types of inflammasomes, including Node-like receptor protein family (e.g., NLRP1, NLRP3, NLRP6, NLRP12, NLRC4), PYHIN family, and pyrin inflammasomes, interact with gut microbiota to maintain gut homeostasis. This review discusses the current understanding of how inflammasomes and microbiota interact, and how this interaction impacts human health. Additionally, we introduce novel biologics and antagonists, such as inhibitors of IL-1β and inflammasomes, as therapeutic strategies for treating gastrointestinal disorders when inflammasomes are dysregulated or the composition of gut microbiota changes.
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Affiliation(s)
- Shirin Manshouri
- Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Valiasr St, Niayesh Intersection, Tehran, 1995614331, Iran
| | - Farhad Seif
- Department of Photodynamic Therapy, Medical Laser Research Center, Academic Center for Education, Culture, and Research (ACECR), Tehran, Iran
- Department of Immunology and Allergy, Academic Center for Education, Culture, and Research (ACECR), Tehran, Iran
| | - Monireh Kamali
- Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Valiasr St, Niayesh Intersection, Tehran, 1995614331, Iran
| | - Mohammad Ali Bahar
- Department of Immunology, Medical School, Iran University of Medical Sciences, Tehran, Iran
| | - Arshideh Mashayekh
- Rajaei Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Valiasr St, Niayesh Intersection, Tehran, 1995614331, Iran.
| | - Rasol Molatefi
- Cancer Immunology and Immunotherapy Research Center, Ardabil University of Medical Sciences, Ardabil, Iran.
- Pediatric Department of Bou Ali Hospital, Ardabil University of Medical Sciences, Ardabil, 56189-85991, Iran.
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Wu X, Yang J, Wu J, Yang X. Therapeutic potential of MCC950, a specific inhibitor of NLRP3 inflammasome in systemic lupus erythematosus. Biomed Pharmacother 2024; 172:116261. [PMID: 38340397 DOI: 10.1016/j.biopha.2024.116261] [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: 12/10/2023] [Revised: 02/03/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024] Open
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disorder with a pathogenesis that remains incompletely understood, resulting in limited treatment options. MCC950, a highly specific NLRP3 inflammasome inhibitor, effectively suppresses the activation of NLRP3, thus reducing the production of caspase-1, the pro-inflammatory cytokines IL-1β and IL-18. This review highlights the pivotal role of NLRP3 inflammasome activation pathways in the pathogenesis of SLE and discusses the potential therapeutic application of MCC950 in SLE. Notably, it comprehensively elucidates the mechanism of MCC950 targeting the NLRP3 pathway in SLE treatment, outlining its potential role in regulating autophagy and necroptosis. The insights gained contribute to a deeper understanding of the value of MCC950 in SLE therapy, serving as a robust foundation for further research and potential clinical applications.
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Affiliation(s)
- Xiaoxiao Wu
- Department of Rheumatology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
| | - Junhao Yang
- Department of Surgical Oncology and General Surgery, The First Hospital of China Medical University, 155North Nanjing Street, Heping District, Shenyang 110001, China
| | - Juanjie Wu
- Department of Rheumatology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China
| | - Xuyan Yang
- Department of Rheumatology, The Second Affiliated Hospital of Zhejiang University School of Medicine, 88 Jiefang Road, Hangzhou 310009, China.
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Pandeya A, Kanneganti TD. Therapeutic potential of PANoptosis: innate sensors, inflammasomes, and RIPKs in PANoptosomes. Trends Mol Med 2024; 30:74-88. [PMID: 37977994 PMCID: PMC10842719 DOI: 10.1016/j.molmed.2023.10.001] [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: 08/09/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 11/19/2023]
Abstract
The innate immune system initiates cell death pathways in response to pathogens and cellular stress. Cell death can be either non-lytic (apoptosis) or lytic (PANoptosis, pyroptosis, and necroptosis). PANoptosis has been identified as an inflammatory, lytic cell death pathway driven by caspases and RIPKs that is regulated by PANoptosome complexes, making it distinct from other cell death pathways. Several PANoptosome complexes (including ZBP1-, AIM2-, RIPK1-, and NLRP12-PANoptosomes) have been characterized to date. Furthermore, PANoptosis is implicated in infectious and inflammatory diseases, cancers, and homeostatic perturbations. Therefore, targeting its molecular components offers significant potential for therapeutic development. This review covers PANoptosomes and their assembly, PANoptosome-mediated cell death mechanisms, and ongoing progress in developing therapeutics that target PANoptosis.
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Affiliation(s)
- Ankit Pandeya
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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Generoso JS, Faller CJ, Collodel A, Catalão CHR, Dominguini D, Petronilho F, Barichello T, Giridharan VV. NLRP3 Activation Contributes to Memory Impairment in an Experimental Model of Pneumococcal Meningitis. Mol Neurobiol 2024; 61:239-251. [PMID: 37603152 DOI: 10.1007/s12035-023-03549-8] [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: 05/08/2023] [Accepted: 07/25/2023] [Indexed: 08/22/2023]
Abstract
Bacterial meningitis is considered a life-threatening condition with high mortality rates. In response to the infection, signaling cascades, producing pro-inflammatory mediators trigger an exacerbated host immune response. Another inflammatory pathway occurs through the activation of inflammasomes. Studies highlight the role of the NLR family pyrin domain containing 3 (NLRP3) in central nervous system disorders commonly involved in neuroinflammation. We aimed to investigate the role of NLRP3 and its inhibitor MCC950 on neurochemical, immunological, and behavioral parameters in the early and late stages of experimental pneumococcal meningitis. For this, adult male Wistar rats received an intracisternal injection of Streptococcus pneumoniae or artificial cerebrospinal fluid as a placebo. The animals were divided into control/saline, control/MCC950, meningitis/saline, and meningitis/MCC950. Immediately after the meningitis induction, the animals received 140 ng/kg MCC950 via intracisternal injection. For the acute protocol, 24 h after induction, brain structures were collected to evaluate cytokines, NLRP3, and microglia. In the long-term group, the animals were submitted to open field and recognition of new objects tests at ten days after the meningitis induction. After the behavioral tests, the same markers were evaluated. The animals in the meningitis group at 24 h showed increased levels of cytokines, NLRP3, and IBA-1 expression, and the use of the MCC950 significantly reduced those levels. Although free from infection, ten days after meningitis induction, the animals in the meningitis group had elevated cytokine levels and demonstrated behavioral deficits; however, the single dose of NLRP3 inhibitor rescued the behavior deficits and decreased the brain inflammatory profile.
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Affiliation(s)
- Jaqueline S Generoso
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil.
| | - Cristiano Julio Faller
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Allan Collodel
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Carlos Henrique Rocha Catalão
- Faillace Department of Psychiatry and Behavioral Sciences, Translational Psychiatry Program, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Diogo Dominguini
- Laboratory of Experimental Pathophysiology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Fabricia Petronilho
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
| | - Tatiana Barichello
- Laboratory of Experimental Neurology, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil
- Faillace Department of Psychiatry and Behavioral Sciences, Translational Psychiatry Program, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA
| | - Vijayasree V Giridharan
- Faillace Department of Psychiatry and Behavioral Sciences, Translational Psychiatry Program, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.
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11
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Nandi D, Forster J, Ramesh A, Nguyen A, Bharadwaj H, Kulkarni A. Caspase-1 Responsive Nanoreporter for In Vivo Monitoring of Inflammasome Immunotherapy. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55545-55558. [PMID: 37990965 PMCID: PMC11056827 DOI: 10.1021/acsami.3c15733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Inflammasomes are multimeric protein signaling complexes that are assembled in innate immune cells in response to a multitude of pathogen and damage-associated signals. They are essential for generating robust inflammatory responses to prevent pathogenic insults. However, inflammasome dysregulation can induce cascading immune responses, resulting in systemic toxicities and inflammatory disease. In this sense, there is a strong need to develop potent inflammasome inhibiting therapies as well as technologies to monitor their efficacy, yet current systems lack the ability to effectively image inflammasome activation and track therapy response early. To overcome these limitations, we report a novel nanoparticle system delivering both a caspase-1 cleavable inflammasome detecting probe and the NLRP3 inhibitor drug MCC-950, providing dual capabilities of monitoring and regulation of inflammasome activation in a biocompatible, tissue penetrating, and sustained release liposomal formulation. We observed this liposomal nanoreporter's ability to reduce and detect inflammasome activation both in vitro in immortalized bone marrow-derived macrophages and in vivo in a DSS-induced ulcerative colitis mouse model. Our results exhibited the nanoreporter's ability to penetrate inflammatory tissues and detect inflammasome activation early and in real-time for multiple days while alleviating inflammation in the groups coencapsulating imaging reporter and inflammasome inhibitor. Overall, the developed liposomal nanoreporter platform enables spatiotemporal delivery of imaging probe and inhibitor, captures early and sustained inflammasome detection, and induces inflammasome amelioration, thus establishing a novel tool for the real-time monitoring and treatment of inflammasome-mediated disease with high potential for clinical application.
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Affiliation(s)
- Dipika Nandi
- Department of Chemical Engineering and Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - James Forster
- Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Anujan Ramesh
- Department of Chemical Engineering and Department of Biomedical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Anh Nguyen
- Department of Chemical Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Hariharan Bharadwaj
- Department of Pathology, UMass Chan, Medical School-Baystate, Springfield, Massachusetts 01107, United States
| | - Ashish Kulkarni
- Department of Chemical Engineering, Department of Veterinary and Animal Sciences, Department of Biomedical Engineering, and Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, United States
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12
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Li ZC, Xu FF, Fu JT, Ouyang SX, Cao Q, Yan YY, Li DJ, Shen FM, Ni M. Sting mutation attenuates acetaminophen-induced acute liver injury by limiting NLRP3 activation. Int Immunopharmacol 2023; 125:111133. [PMID: 38149573 DOI: 10.1016/j.intimp.2023.111133] [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: 07/17/2023] [Revised: 10/11/2023] [Accepted: 10/23/2023] [Indexed: 12/28/2023]
Abstract
Acetaminophen (N-acetyl-p-aminophenol; APAP), a widely used effective nonsteroidal anti-inflammatory drug, leads to acute liver injury at overdose worldwide. Evidence showed that the severity of liver injury associated with the subsequent involvement of inflammatory mediators and immune cells. The innate immune stimulator of interferon genes protein (STING) pathway was critical in modulating inflammation. Here, we show that STING was activated and inflammation was enhanced in the liver in APAP-overdosed C57BL/6J mice, and Sting mutation (Stinggt/gt) mice exhibited less liver damage. Multiplexing flow cytometry displayed that Sting mutation changed hepatic recruitment and replacement of macrophages/monocytes in APAP-overdosed mice, which was inclined to anti-inflammation. In addition, Sting mutation limited NLRP3 activation in the liver in APAP-overdosed mice, and inhibited the expression of inflammatory cytokines. Finally, MCC950, a potent and selective NLRP3 inhibitor, significantly ameliorated APAP-induced liver injury and inflammation. Besides, pretreatment of MCC950 in C57 mice resulted in changes of immune cells infiltration in the liver similar to Stinggt/gt mice. Our study revealed that STING played a crucial role in APAP-induced acute liver injury, possibly by maintaining liver immune cells homeostasis and inhibiting NLRP3 inflammasome activation, suggesting that inhibiting STING-NLRP3 pathway might be a potential therapeutic strategy for acute liver injury.
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Affiliation(s)
- Zi-Chen Li
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fang-Fang Xu
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiang-Tao Fu
- Department of Pharmacology, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai, China
| | - Shen-Xi Ouyang
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qi Cao
- Department of Pharmacology, School of Pharmacy, Second Military Medical University/Naval Medical University, Shanghai, China
| | - Yu-Ying Yan
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Dong-Jie Li
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fu-Ming Shen
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Min Ni
- Department of Pharmacy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.
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13
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Sekar R, Wooff Y, Cioanca AV, Kurera M, Ngo C, Man SM, Natoli R. Impairing Gasdermin D-mediated pyroptosis is protective against retinal degeneration. J Neuroinflammation 2023; 20:239. [PMID: 37864169 PMCID: PMC10588253 DOI: 10.1186/s12974-023-02927-2] [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] [Accepted: 10/10/2023] [Indexed: 10/22/2023] Open
Abstract
BACKGROUND Inflammasome activation and the subsequent release of pro-inflammatory cytokines including Interleukin 1β (IL-1β) have been widely reported to contribute to the progression of retinal degenerations, including age-related macular degeneration (AMD), the leading cause of blindness in the Western World. The role of Gasdermin D (GSDMD), a key executioner of pyroptosis following inflammasome activation, however, is less well-established. In this study we aimed to characterise the role of GSDMD in the healthy and degenerating retina, and uncover its role as a conduit for IL-1β release, including via extracellular vesicle (EV)-mediated release. METHODS GSDMD mutant and knockout mice, in vitro models of inflammation and a well-established in vivo model of retinal degeneration (photo-oxidative damage; PD) were utilised to explore the role and pathological contribution of GSDMD in regulating IL-1β release and propagating retinal inflammation. RNA sequencing of whole retinas was used to investigate GSDMD-mediated inflammation during degeneration. The role of EVs in GSDMD-mediated IL-1β release was investigated using nanoparticle tracking analysis, ELISA and EV inhibition paradigms. Finally, the therapeutic efficacy of targeting GSDMD was examined using GSDMD-specific siRNA. RESULTS We identified in this work that mice deficient in GSDMD had better-preserved retinal function, increased photoreceptor survivability and reduced inflammation. RNA-Seq analysis revealed that GSDMD may propagate inflammation in the retina via NF-κB signalling cascades and release of pro-inflammatory cytokines. We also showed that IL-1β was packaged and released via EV in a GSDMD-dependent manner. Finally, we demonstrated that impairing GSDMD function using RNAi or blocking EV release was able to reduce IL-1β content in cell-free supernatant and EV. CONCLUSIONS Taken together, these results suggest that pyroptotic pore-forming protein GSDMD plays a key role in the propagation of retinal inflammation, in particular via the release of EV-encapsulated IL-1β. Targeting GSDMD using genetic or pharmacological inhibitors may pose a therapeutic opportunity to dampen inflammatory cascades and delay the progression of retinal degeneration.
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Affiliation(s)
- Rakshanya Sekar
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
- School of Medicine and Psychology, The Australian National University, Canberra, ACT, Australia
| | - Yvette Wooff
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
- School of Medicine and Psychology, The Australian National University, Canberra, ACT, Australia
| | - Adrian V Cioanca
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
- School of Medicine and Psychology, The Australian National University, Canberra, ACT, Australia
| | - Melan Kurera
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Chinh Ngo
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Si Ming Man
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Riccardo Natoli
- The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia.
- School of Medicine and Psychology, The Australian National University, Canberra, ACT, Australia.
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14
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Liu GZ, Niu TT, Yu Q, Xu BL, Li XQ, Yuan BY, Yuan GB, Yang TT, Li HQ, Sun Y. Ginkgolide attenuates memory impairment and neuroinflammation by suppressing the NLRP3/caspase-1 pathway in Alzheimer's disease. Aging (Albany NY) 2023; 15:10237-10252. [PMID: 37793010 PMCID: PMC10599747 DOI: 10.18632/aging.205072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/17/2023] [Indexed: 10/06/2023]
Abstract
The NLRP3 inflammasome is involved in the neuroinflammatory pathway of Alzheimer's disease (AD). The aim of this study is to explore the roles and underlying mechanisms of ginkgolide (Baiyu®) on amyloid precursor protein (APP)/presenilin 1 (PS1) transgenic mice and a murine microglial cell line, BV-2. In the present study, the APP/PS1 mice were administered with ginkgolide, followed by a Morris water maze test. The mice were then euthanized to obtain brain tissue for histological and Aβ analysis. Additionally, BV-2 cells were pretreated with ginkgolide and then incubated with Aβ1-42 peptide. NLRP3, ASC, and caspase-1 mRNA and protein expression in brain tissue of mice and BV-2 cells were quantified by real-time PCR and western blotting, as well as reactive oxygen species (ROS) production, interleukin (IL)-1β and IL-18 levels by lucigenin technique and ELISA. Compared with the APP/PS1 mice, ginkgolide-treated mice demonstrated the shortened escape latency, reduced plaques, less inflammatory cell infiltration and neuron loss in the hippocampi of APP/PS1 mice. The levels of NLRP3, ASC, caspase-1, ROS, IL-1β, and IL-18 were also decreased in the brain tissue of APP/PS1 mice or Aβ1-42-treated BV-2 cells following ginkgolide treatment. Ginkgolide exerted protective effects on AD, at least partly by inactivating the NLRP3/caspase-1 pathway.
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Affiliation(s)
- Guang-Zhi Liu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Tian-Tong Niu
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Qian Yu
- Beijing D.A. Medical Laboratory, Beijing 102600, China
| | - Bao-Lei Xu
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Xiao-Qing Li
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Bo-Yi Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Guo-Bin Yuan
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Ting-Ting Yang
- Department of Neurology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Hui-Qin Li
- Research and Development Centre, Chengdu Baiyu Pharmaceutical Co., Ltd., Chengdu 611130, China
| | - Yi Sun
- Research and Development Centre, Chengdu Baiyu Pharmaceutical Co., Ltd., Chengdu 611130, China
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15
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Sim J, Park J, Moon JS, Lim J. Dysregulation of inflammasome activation in glioma. Cell Commun Signal 2023; 21:239. [PMID: 37723542 PMCID: PMC10506313 DOI: 10.1186/s12964-023-01255-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 08/01/2023] [Indexed: 09/20/2023] Open
Abstract
Gliomas are the most common brain tumors characterized by complicated heterogeneity. The genetic, molecular, and histological pathology of gliomas is characterized by high neuro-inflammation. The inflammatory microenvironment in the central nervous system (CNS) has been closely linked with inflammasomes that control the inflammatory response and coordinate innate host defenses. Dysregulation of the inflammasome causes an abnormal inflammatory response, leading to carcinogenesis in glioma. Because of the clinical importance of the various physiological properties of the inflammasome in glioma, the inflammasome has been suggested as a promising treatment target for glioma management. Here, we summarize the current knowledge on the contribution of the inflammasomes in glioma and therapeutic insights. Video Abstract.
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Affiliation(s)
- JeongMin Sim
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, 11160, Republic of Korea
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University College of Medicine, 59 Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea
| | - JeongMan Park
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, 11160, Republic of Korea
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University College of Medicine, 59 Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea
| | - Jong-Seok Moon
- Department of Integrated Biomedical Science, Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan, 31151, Republic of Korea.
| | - Jaejoon Lim
- Department of Biomedical Science, College of Life Science, CHA University, Pocheon, 11160, Republic of Korea.
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University College of Medicine, 59 Yatap-Ro, Bundang-Gu, Seongnam, 13496, Republic of Korea.
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16
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Chen Y, Meng W, Ren G, An N, Zhang J, Liu Z, Wu X, Yin W, Hu X, Liu Z, Feng F, Chen Y. NLRP3 inflammasome inhibition of OP9 cells enhance therapy for inflammatory bowel disease. Heliyon 2023; 9:e18038. [PMID: 37483815 PMCID: PMC10362138 DOI: 10.1016/j.heliyon.2023.e18038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 07/01/2023] [Accepted: 07/05/2023] [Indexed: 07/25/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are becoming more popular in therapy. Therefore, in-depth studies on mesenchymal stem cells in therapy are urgently needed. However, the difficulty in culturing and propagating MSCs in vitro complicates potential studies on MSCs in a murine model. OP9 cells are a stromal cell line from mouse bone marrow, which have similar characteristics and functions to MSCs and can maintain their original characteristics. Because of these properties, OP9 cells have become a suitable substitute for research on MSCs. Previously, we have found that MSCs can cure inflammatory bowel disease in mice. In this study, we aimed to investigate whether OP9 cells can functionally regulate and alleviate inflammatory diseases. We evaluated the therapeutic effect of OP9 cells in the mouse model of inflammatory bowel disease and found OP9 cells were able to ameliorate inflammatory bowel disease. We explored the existence of NLRP3 inflammasome in OP9 cells, and showed better therapeutic effects when the NLRP3 inflammasome was suppressed. Thus, OP9 cell line is similar to MSCs in characteristic and function, and is an ideal substitute for MSCs research. The preliminary exploration of the inflammasome system in OP9 cells lays a theoretical and methodological foundation for further study of MSCs.
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Affiliation(s)
- Yutong Chen
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Weicheng Meng
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Guangming Ren
- Division of Digestive Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Ning An
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Jing Zhang
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Zhixin Liu
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Xiaoshuang Wu
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Wen Yin
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Xingbin Hu
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Zheng Liu
- Kobilka Institute of Innovative Drug Discovery, School of Medicine, Chinese University of Hong Kong, Shenzhen, Guangdong, 518172, China
| | - Fan Feng
- Division of Digestive Surgery, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, 710032, China
| | - Yaozhen Chen
- Department of Transfusion Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
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17
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Zheng JH, Yuan N, Zhang P, Liu DF, Lin W, Miao J. Acupuncture combined with moxibustion mitigates spinal cord injury-induced motor dysfunction in mice by NLRP3-IL-18 signaling pathway inhibition. J Orthop Surg Res 2023; 18:419. [PMID: 37296436 DOI: 10.1186/s13018-023-03902-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND Spinal cord injury (SCI), which reportedly induces severe motor dysfunction, imposes a significant social and financial burden on affected individuals, families, communities, and nations. Acupuncture combined with moxibustion (AM) therapy has been widely used for motor dysfunction treatment, but the underlying mechanisms remain unknown. In this work, we aimed to determine whether AM therapy could alleviate motor impairment post-SCI and, if so, the potential mechanism. METHODS A SCI model was established in mice through impact methods. AM treatment was performed in SCI model mice at Dazhui (GV14) and Jiaji points (T7-T12), Mingmen (GV4), Zusanli (ST36), and Ciliao (BL32) on both sides for 30 min once per day for 28 days. The Basso-Beattie-Bresnahan score was used to assess motor function in mice. A series of experiments including astrocytes activation detected by immunofluorescence, the roles of NOD-like receptor pyrin domain-containing-3 (NLRP3)-IL-18 signaling pathway with the application of astrocyte-specific NLRP3 knockout mice, and western blot were performed to explore the specific mechanism of AM treatment in SCI. RESULTS Our data indicated that mice with SCI exposure exhibited motor dysfunction, a significant decrease of neuronal cells, a remarkable activation of astrocytes and microglia, an increase of IL-6, TNF-α, IL-18 expression, and an elevation of IL-18 colocalized with astrocytes, while astrocytes-specific NLRP3 knockout heavily reversed these changes. Besides, AM treatment simulated the neuroprotective effects of astrocyte-specific NLRP3 knockout, whereas an activator of NLRP3 nigericin partially reversed the AM neuroprotective effects. CONCLUSION AM treatment mitigates SCI-induced motor dysfunction in mice; this protective mechanism may be related to the NLRP3-IL18 signaling pathway inhibition in astrocytes.
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Affiliation(s)
- Ji-Hui Zheng
- Department of OrthopaedicsThe Graduate School, Tianjin Medical University, Tianjin, China
- Hebei Key Laboratory of Integrated Traditional and Western Medicine in Osteoarthrosis Research (Preparing), Cangzhou, China
| | - Na Yuan
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China
| | - Peng Zhang
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China
| | - De-Feng Liu
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China
| | - Wei Lin
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China
| | - Jun Miao
- Department of OrthopaedicsTianjin Hospital, Tianjin Medical University, Tianjin, China.
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18
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Chen Y, Chen J, Wei H, Gong K, Meng J, Long T, Guo J, Hong J, Yang L, Qiu J, Xiong K, Wang Z, Xu Q. Akkermansia muciniphila-Nlrp3 is involved in the neuroprotection of phosphoglycerate mutase 5 deficiency in traumatic brain injury mice. Front Immunol 2023; 14:1172710. [PMID: 37287985 PMCID: PMC10242175 DOI: 10.3389/fimmu.2023.1172710] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 05/03/2023] [Indexed: 06/09/2023] Open
Abstract
Introduction Gut-microbiota-brain axis is a potential treatment to decrease the risk of chronic traumatic encephalopathy following traumatic brain injury (TBI). Phosphoglycerate mutase 5 (PGAM5), a mitochondrial serine/threonine protein phosphatase, resides in mitochondrial membrane and regulates mitochondrial homeostasis and metabolism. Mitochondria mediates intestinal barrier and gut microbiome. Objectives This study investigated the association between PGAM5 and gut microbiota in mice with TBI. Methods The controlled cortical impact injury was established in mice with genetically-ablated Pgam5 (Pgam5-/-) or wild type, and WT male mice were treated with fecal microbiota transplantation (FMT) from male Pgam5-/- mice or Akkermansia muciniphila (A. muciniphila). Then the gut microbiota abundance, blood metabolites, neurological function, and nerve injury were detected. Results Treated with antibiotics for suppressing gut microbiota in Pgam5-/- mice partially relieved the role of Pgam5 deficiency in the improvement of initial inflammatory factors and motor dysfunction post-TBI. Pgam5 knockout exhibited an increased abundance of A. muciniphila in mice. FMT from male Pgam5-/- mice enabled better maintenance of amino acid metabolism and peripherial environment than that in TBI-vehicle mice, which suppressed neuroinflammation and improved neurological deficits, and A. muciniphila was negatively associated with intestinal mucosal injury and neuroinflammation post-TBI. Moreover, A. muciniphila treatment ameliorated neuroinflammation and nerve injury by regulating Nlrp3 inflammasome activation in cerebral cortex with TBI. Conclusion Thus, the present study provides evidence that Pgam5 is involved in gut microbiota-mediated neuroinflammation and nerve injury, with A. muciniphila-Nlrp3 contributing to peripheral effects.
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Affiliation(s)
- Yuhua Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
- Department of Central Laboratory, Xi’an Peihua University, Xi’an, Shaanxi, China
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Junhui Chen
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Hong Wei
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
- Department of Rehabilitation Teaching and Research, Xi’an Siyuan University, Xi’an, China
| | - Kai Gong
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jiao Meng
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
- Department of Central Laboratory, Xi’an Peihua University, Xi’an, Shaanxi, China
| | - Tianlin Long
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
| | - Jianfeng Guo
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Jun Hong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
| | - Lingjian Yang
- School of Chemistry & Chemical Engineering, Ankang University, Ankang, China
| | - Junling Qiu
- Department of Cardiology, First Hospital of Northwestern University, Shannxi, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan, China
- Key Laboratory of Emergency and Trauma, Ministry of Education, College of Emergency and Trauma, Hainan Medical University, Haikou, Hainan, China
- Hunan Key Laboratory of Ophthalmology, Changsha, Hunan, China
| | - Zhanxiang Wang
- Xiamen Key Laboratory of Brain Center, Department of Neurosurgery, Trauma Center, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China
| | - Quanhua Xu
- Department of Neurosurgery, Bijie Traditional Chinese Medical Hospital, Bijie, Guizhou, China
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19
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Müller N, Scheld M, Voelz C, Gasterich N, Zhao W, Behrens V, Weiskirchen R, Baazm M, Clarner T, Beyer C, Sanadgol N, Zendedel A. Lipocalin-2 Deficiency Diminishes Canonical NLRP3 Inflammasome Formation and IL-1β Production in the Subacute Phase of Spinal Cord Injury. Int J Mol Sci 2023; 24:ijms24108689. [PMID: 37240031 DOI: 10.3390/ijms24108689] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Spinal cord injury (SCI) results in the production of proinflammatory cytokines due to inflammasome activation. Lipocalin 2 (LCN2) is a small secretory glycoprotein upregulated by toll-like receptor (TLR) signaling in various cells and tissues. LCN2 secretion is induced by infection, injury, and metabolic disorders. In contrast, LCN2 has been implicated as an anti-inflammatory regulator. However, the role of LCN2 in inflammasome activation during SCI remains unknown. This study examined the role of Lcn2 deficiency in the NLRP3 inflammasome-dependent neuroinflammation in SCI. Lcn2-/- and wild-type (WT) mice were subjected to SCI, and locomotor function, formation of the inflammasome complex, and neuroinflammation were assessed. Our findings demonstrated that significant activation of the HMGB1/PYCARD/caspase-1 inflammatory axis was accompanied by the overexpression of LCN2 7 days after SCI in WT mice. This signal transduction results in the cleaving of the pyroptosis-inducing protein gasdermin D (GSDMD) and the maturation of the proinflammatory cytokine IL-1β. Furthermore, Lcn2-/- mice showed considerable downregulation in the HMGB1/NLRP3/PYCARD/caspase-1 axis, IL-1β production, pore formation, and improved locomotor function compared with WT. Our data suggest that LCN2 may play a role as a putative molecule for the induction of inflammasome-related neuroinflammation in SCI.
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Affiliation(s)
- Nina Müller
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Miriam Scheld
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Clara Voelz
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Natalie Gasterich
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Weiyi Zhao
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Victoria Behrens
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Maryam Baazm
- Department of Anatomy, School of Medicine, Arak University of Medical Sciences, Arak 38481-7-6341, Iran
| | - Tim Clarner
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
- Institute of Anatomy, Rostock University Medical Center, 18057 Rostock, Germany
| | - Cordian Beyer
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Nima Sanadgol
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
| | - Adib Zendedel
- Institute of Neuroanatomy, RWTH University Hospital Aachen, 52074 Aachen, Germany
- Institute of Anatomy, Department of Biomedicine, University of Basel, 4001 Basel, Switzerland
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Motawi TK, El-Maraghy SA, Kamel AS, Said SE, Kortam MA. Modulation of p38 MAPK and Nrf2/HO-1/NLRP3 inflammasome signaling and pyroptosis outline the anti-neuroinflammatory and remyelinating characters of Clemastine in EAE rat model. Biochem Pharmacol 2023; 209:115435. [PMID: 36720356 DOI: 10.1016/j.bcp.2023.115435] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/23/2023] [Accepted: 01/23/2023] [Indexed: 01/31/2023]
Abstract
There is vast evidence for the effect of NOD-like receptor protein-3 (NLRP3) inflammasome on multiple sclerosis (MS) pathogenesis. Clemastine (CLM) targets NLRP3 in hypoxic brain injury and promotes oligodendrocyte differentiation. However, no previous study pointed to the link of CLM with inflammasome components in MS. Herein, the study aimed to verify the action of CLM on NLRP3 signaling in experimental autoimmune encephalomyelitis (EAE) as an MS rat model. Homogenate of spinal cord with complete Freund's adjuvant was administered on days 0 and 7 to induce EAE. Rats received either CLM (5 mg/kg/day; p.o.) or MCC950 (2.5 mg/kg/day; i.p) for 15 days starting from the first immunization day. In EAEs' brains, NLRP3 pathway components; total and phosphorylated p38 mitogen-activated protein kinase (MAPK), apoptosis-associated speck-like protein containing a CARD (ASC), caspase-1, interleukins 1β and -18 along with pyroptotic marker; gasdermin D (GSDMD) were upregulated. These were accompanied with diminished nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1) and total antioxidant capacity levels. CLM improved these perturbations as well as signs of MS; weight loss, clinical scores, and motor disorders observed in the open field, hanging wire and rotarod tests. Histopathological examinations revealed improvement in H&E abnormalities and axonal demyelination as shown by luxol fast blue stain in lumbar sections of spinal cord. These CLM's actions were studied in comparison to MCC950 as a well-established selective blocker of the NLRP3 inflammasome. Conclusively, CLM has a protective role against neuroinflammation and demyelination in EAE via its anti-inflammatory and anti-pyroptotic actions.
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Affiliation(s)
- Tarek K Motawi
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El Ainy st., 11562 Cairo, Egypt.
| | - Shohda A El-Maraghy
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El Ainy st., 11562 Cairo, Egypt.
| | - Ahmed S Kamel
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El Ainy st., 11562 Cairo, Egypt.
| | - Salma E Said
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El Ainy st., 11562 Cairo, Egypt.
| | - Mona A Kortam
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Kasr El Ainy st., 11562 Cairo, Egypt.
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Zhang Y, Liu B, Said A, Xie J, Tian F, Cao Z, Chao Z, Li F, Li X, Li S, Liu H, Wang W. Regulatory functional role of NLRP3 inflammasome during Mycoplasma hyopneumoniae infection in swine. J Anim Sci 2023; 101:skad216. [PMID: 37351955 PMCID: PMC10406421 DOI: 10.1093/jas/skad216] [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: 03/29/2023] [Accepted: 06/21/2023] [Indexed: 06/24/2023] Open
Abstract
Mycoplasma hyopneumoniae causes enzootic pneumonia, a highly contagious respiratory disease in swine that causes significant economic losses worldwide. It is unknown whether the nucleotide oligomerization domain-like receptor (NLR) family pyrin domain containing 3 (NLRP3) inflammasome regulates the immune response in swine during M. hyopneumoniae infection. The current study utilized an in vivo swine model of M. hyopneumoniae infection to investigate the regulatory functional role of the NLRP3 inflammasome during M. hyopneumoniae infection. Notable histopathological alterations were observed in M. hyopneumoniae-infected swine tissues, which were associated with an inflammatory response and disease progression. Swine M. hyopneumoniae infection was associated with an increase in the expression of the NLRP3 inflammasome, which stimulated pro-inflammatory cytokines such as tumor necrosis factor-alpha, interleukin 18, and interleukin 1 beta (IL-1β). The impact of the NLRP3 inhibitor, MCC950 on NLRP3 and pro-inflammatory cytokines in M. hyopneumoniae-infected swine was examined to investigate the relationship between the NLRP3 inflammasome and M. hyopneumoniae infection. Taken together, our findings provide strong evidence that the NLRP3 inflammasome plays a critical regulatory functional role in M. hyopneumoniae infection in swine.
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Affiliation(s)
- Yan Zhang
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China
- Key Laboratory of Tropical Animal Breeding and Disease Research, Haikou 571100, China
| | - Bo Liu
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou 256600, China
- Lvdu Bio-Sciences &Technology Co. Ltd., Binzhou 256600, Shandong, China
| | - Abdelrahman Said
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
- Parasitology and Animal Diseases Department, National Research Center, Dokki, Giza, Egypt
| | - Jinwen Xie
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou 256600, China
| | - Fengrong Tian
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou 256600, China
| | - Zongxi Cao
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China
- Key Laboratory of Tropical Animal Breeding and Disease Research, Haikou 571100, China
| | - Zhe Chao
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China
- Key Laboratory of Tropical Animal Breeding and Disease Research, Haikou 571100, China
| | - Feng Li
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou 256600, China
- Shandong Academician Workstation, Binzhou 256600, Shandong, China
| | - Xin Li
- Xinjiang Agricultural University, Wulumuqi, Xinjiang, China
| | - Shuguang Li
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou 256600, China
| | - Hailong Liu
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China
- Key Laboratory of Tropical Animal Breeding and Disease Research, Haikou 571100, China
| | - Wenxiu Wang
- Shandong Binzhou Animal Science and Veterinary Medicine Academy, Binzhou 256600, China
- Shandong Academician Workstation, Binzhou 256600, Shandong, China
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Guo L, Wang Z, Zhu C, Li J, Cui L, Dong J, Meng X, Zhu G, Li J, Wang H. MCC950 inhibits the inflammatory response and excessive proliferation of canine corneal stromal cells induced by Staphylococcus pseudintermedius. Mol Immunol 2022; 152:162-171. [DOI: 10.1016/j.molimm.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/18/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022]
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Yin J, Gong G, Wan W, Liu X. Pyroptosis in spinal cord injury. Front Cell Neurosci 2022; 16:949939. [PMID: 36467606 PMCID: PMC9715394 DOI: 10.3389/fncel.2022.949939] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/03/2022] [Indexed: 10/21/2023] Open
Abstract
Spinal cord injury (SCI) often brings devastating consequences to patients and their families. Pathophysiologically, the primary insult causes irreversible damage to neurons and glial cells and initiates the secondary damage cascade, further leading to inflammation, ischemia, and cells death. In SCI, the release of various inflammatory mediators aggravates nerve injury. Pyroptosis is a new pro-inflammatory pattern of regulated cell death (RCD), mainly mediated by caspase-1 or caspase-11/4/5. Gasdermins family are pore-forming proteins known as the executor of pyroptosis and the gasdermin D (GSDMD) is best characterized. Pyroptosis occurs in multiple central nervous system (CNS) cell types, especially plays a vital role in the development of SCI. We review here the evidence for pyroptosis in SCI, and focus on the pyroptosis of different cells and the crosstalk between them. In addition, we discuss the interaction between pyroptosis and other forms of RCD in SCI. We also summarize the therapeutic strategies for pyroptosis inhibition, so as to provide novel ideas for improving outcomes following SCI.
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Affiliation(s)
- Jian Yin
- Department of Orthopedics, The Affiliated Jiangning Hospital With Nanjing Medical University, Nanjing, China
- Department of Orthopedics, Shanghai General Hospital of Nanjing Medical University, Shanghai, China
| | - Ge Gong
- Department of Geriatrics, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wenhui Wan
- Department of Geriatrics, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xinhui Liu
- Department of Orthopedics, The Affiliated Jiangning Hospital With Nanjing Medical University, Nanjing, China
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Barczuk J, Siwecka N, Lusa W, Rozpędek-Kamińska W, Kucharska E, Majsterek I. Targeting NLRP3-Mediated Neuroinflammation in Alzheimer’s Disease Treatment. Int J Mol Sci 2022; 23:ijms23168979. [PMID: 36012243 PMCID: PMC9409081 DOI: 10.3390/ijms23168979] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/10/2022] [Accepted: 08/10/2022] [Indexed: 12/13/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common cause of dementia in the general population and, to date, constitutes a major therapeutic challenge. In the pathogenesis of AD, aggregates of amyloid β (Aβ) and neurofibrillary tangles (NFTs) containing Tau-microtubule-associated protein (tau) are known to trigger a neuroinflammatory response with subsequent formation of an inflammasome. In particular, the NOD-like receptor pyrin domain-containing 3 (NLRP3) inflammasome is thought to play a crucial role in AD-related pathology. While the mechanisms for NLRP3 activation are not fully understood, it has been demonstrated that, after detection of protein aggregates, NLRP3 induces pro-inflammatory cytokines, such as interleukin 18 (IL-18) or interleukin 1β (IL-1β), that further potentiate AD progression. Specific inhibitors of NLRP3 that exhibit various mechanisms to attenuate the activity of NLRP3 have been tested in in vivo studies and have yielded promising results, as shown by the reduced level of tau and Aβ aggregates and diminished cognitive impairment. Herein, we would like to summarize the current state of knowledge on NLRP3 inflammasome priming, activation, and its actual role in AD pathogenesis, and to characterize the NLRP3 inhibitors that have been studied most and their impact on AD-related pathology.
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Affiliation(s)
- Julia Barczuk
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, 90-419 Lodz, Poland
| | - Natalia Siwecka
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, 90-419 Lodz, Poland
| | - Weronika Lusa
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, 90-419 Lodz, Poland
| | | | - Ewa Kucharska
- Department of Gerontology, Geriatrics and Social Work, Jesuit University Ignatianum, 31-501 Krakow, Poland
| | - Ireneusz Majsterek
- Department of Clinical Chemistry and Biochemistry, Medical University of Lodz, 90-419 Lodz, Poland
- Correspondence: ; Tel.: +48-42-272-53-00
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Mattana M, Tomasello R, Cammarata C, Di Carlo P, Fasciana T, Giordano G, Lucchesi A, Siragusa S, Napolitano M. Clostridium difficile Induced Inflammasome Activation and Coagulation Derangements. Microorganisms 2022; 10:microorganisms10081624. [PMID: 36014040 PMCID: PMC9416296 DOI: 10.3390/microorganisms10081624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 11/16/2022] Open
Abstract
C. difficile enterocolitis (CDAC) is the most common hospital infection, burdened by an increased incidence of coagulation-related complications such as deep vein thrombosis (DVT) and disseminated intravascular coagulation (DIC) as well as a significant sepsis-related mortality. In this review, we analyzed the available data concerning the correlation between coagulation complications related to C. difficile infection (CDI) and inflammasome activation, in particular the pyrin-dependent one. The little but solid available preclinical and clinical evidence shows that inflammasome activation increases the risk of venous thromboembolism (VTE). As proof of this, it has been observed that in vitro inhibition of the molecules (e.g., tissue factor) mainly involved in coagulation activation could block the process. In vivo studies show that it could be possible to reduce the incidence of complications associated with C. difficile infection (CDI) and mortality due to a state of hypercoagulability. A personalized therapeutic approach to reduce the inflammatory activity and prevent thromboembolic complications could be preliminarily defined to reduce mortality.
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Affiliation(s)
- Marta Mattana
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
| | - Riccardo Tomasello
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
| | - Claudia Cammarata
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
| | - Paola Di Carlo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
| | - Teresa Fasciana
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
| | - Giulio Giordano
- Division of Internal Medicine, Hematology Service, Regional Hospital “A. Cardarelli”, 86100 Campobasso, Italy
| | - Alessandro Lucchesi
- Hematology Unit, IRCCS Istituto Scientifico Romagnolo per lo Studio dei Tumori (IRST) “Dino Amadori”, 47014 Meldola, Italy
| | - Sergio Siragusa
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
| | - Mariasanta Napolitano
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (ProMISE), University of Palermo, 90141 Palermo, Italy
- Correspondence: ; Tel.: +39-0916554519; Fax: +39-0916554500
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The Inflammasome NLR Family Pyrin Domain-Containing Protein 3 (NLRP3) as a Novel Therapeutic Target for Idiopathic Pulmonary Fibrosis. THE AMERICAN JOURNAL OF PATHOLOGY 2022; 192:837-846. [PMID: 35351468 DOI: 10.1016/j.ajpath.2022.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 03/01/2022] [Accepted: 03/10/2022] [Indexed: 02/06/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a dramatic disease without cure. The US Food and Drug Administration-approved drugs, pirfenidone and nintedanib, only slow disease progression. The clinical investigation of novel therapeutic approaches for IPF is an unmet clinical need. Nucleotide-binding oligomerization domain-like receptor or NOD-like receptors are pattern recognition receptors capable of binding a large variety of stress factors. NLR family pyrin domain-containing protein 3 (NLRP3), once activated, promotes IL-1β, IL-18 production, and innate immune responses. Multiple reports indicate that the inflammasome NLRP3 is overactivated in IPF patients, leading to increased production of class I IL and collagens. Similarly, data from animal models of pulmonary fibrosis confirm the role of NLRP3 in the development of chronic lung injury and pulmonary fibrosis. This report provides a review of the evidence of NLRP3 activation in IPF and of NLRP3 inhibition in different animal models of fibrosis, and highlights the recent advances in direct and indirect NLRP3 inhibitors.
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MCC950 in the treatment of NLRP3-mediated inflammatory diseases: Latest evidence and therapeutic outcomes. Int Immunopharmacol 2022; 106:108595. [DOI: 10.1016/j.intimp.2022.108595] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/22/2022] [Accepted: 01/27/2022] [Indexed: 12/13/2022]
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RGS6 Drives Spinal Cord Injury by Inhibiting AMPK Pathway in Mice. DISEASE MARKERS 2022; 2022:4535652. [PMID: 35510037 PMCID: PMC9061016 DOI: 10.1155/2022/4535652] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 03/22/2022] [Indexed: 11/18/2022]
Abstract
Objective. Oxidative stress and inflammation play critical roles in the pathogenesis of spinal cord injury (SCI). Regulator of G protein signaling 6 (RGS6) is involved in controlling ROS generation and inflammatory response under different contexts. This study is aimed at investigating its role and underlying mechanism in SCI. Methods. Contusive SCI mouse models were generated, and lentiviral vectors were injected to silence or overexpress RGS6 in the spinal cord. To inhibit AMP-activated protein kinase (AMPK) activity, SCI mice were intraperitoneally injected with compound C (20 mg/kg) every two days. Oxidative and inflammatory markers were detected. Results. Spinal RGS6 expression was elevated upon SCI stimulation. RGS6 knockdown suppressed, while RGS6 overexpression aggravated oxidative stress, inflammation, and SCI in mice. Mechanistically, RGS6 elevation during SCI deactivated AMPK pathway, thereby exacerbating oxidative stress and inflammation in SCI mice. Conclusion. RGS6 is required for the initiation and progression of SCI, and knocking down RGS6 may provide promising therapeutic strategies for SCI patients.
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Chen Y, Wu L, Shi M, Zeng D, Hu R, Wu X, Han S, He K, Xu H, Shao X, Ma R. Electroacupuncture Inhibits NLRP3 Activation by Regulating CMPK2 After Spinal Cord Injury. Front Immunol 2022; 13:788556. [PMID: 35401582 PMCID: PMC8987202 DOI: 10.3389/fimmu.2022.788556] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 02/25/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives This study aimed to evaluate the expression of cytosine monophosphate kinase 2 (CMPK2) and activation of the NLRP3 inflammasome in rats with spinal cord injury (SCI) and to characterize the effects of electroacupuncture on CMPK2-associated regulation of the NLRP3 inflammasome. Methods An SCI model was established in Sprague–Dawley (SD) rats. The expression levels of NLRP3 and CMPK2 were measured at different time points following induction of SCI. The rats were randomly divided into a sham group (Sham), a model group (Model), an electroacupuncture group (EA), an adeno-associated virus (AAV) CMPK2 group, and an AAV NC group. Electroacupuncture was performed at jiaji points on both sides of T9 and T11 for 20 min each day for 3 consecutive days. In the AAV CMPK2 and AAV NC groups, the viruses were injected into the T9 spinal cord via a microneedle using a microscope and a stereotactic syringe. The Basso–Beattie–Bresnahan (BBB) score was used to evaluate the motor function of rats in each group. Histopathological changes in spinal cord tissue were detected using H&E staining, and the expression levels of NLRP3, CMPK2, ASC, caspase-1, IL-18, and IL-1β were quantified using Western blotting (WB), immunofluorescence (IF), and RT-PCR. Results The expression levels of NLRP3 and CMPK2 in the spinal cords of the model group were significantly increased at day 1 compared with those in the sham group (p < 0.05). The expression levels of NLRP3 and CMPK2 decreased gradually over time and remained low at 14 days post-SCI. We successfully constructed AAV CMPK2 and showed that CMPK2 was significantly knocked down following 2 dilutions. Finally, treatment with EA or AAV CMPK2 resulted in significantly increased BBB scores compared to those in the model group and the AAV NC group (p < 0.05). The histomorphology of the spinal cord in the EA and AAV CMPK2 groups was significantly different than that in the model and AAV NC groups. WB, IF, and PCR analyses showed that the expression levels of CMPK2, NLRP3, ASC, caspase-1, IL-18, and IL-1β were significantly lower in the EA and AAV CMPK2 groups compared with those in the model and AAV NC groups (p < 0.05). Conclusion Our study showed that CMPK2 regulated NLRP3 expression in rats with SCI. Activation of NLRP3 is a critical mechanism of inflammasome activation and the inflammatory response following SCI. Electroacupuncture downregulated the expression of CMPK2 and inhibited activation of NLRP3, which could improve motor function in rats with SCI.
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Affiliation(s)
- Yi Chen
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Lei Wu
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
- Department of Acupuncture, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Mengting Shi
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Danyi Zeng
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Rong Hu
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Xingying Wu
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Shijun Han
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Kelin He
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
- Department of Acupuncture, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Haipeng Xu
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - XiaoMei Shao
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
| | - Ruijie Ma
- Department of Neurobiology and Acupuncture Research, The Third School of Clinical Medicine (School of Rehabilitation Medicine), Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, China
- Department of Acupuncture, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
- *Correspondence: Ruijie Ma,
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Zhao H, Wang X, Liu S, Zhang Q. Paeonol regulates NLRP3 inflammasomes and pyroptosis to alleviate spinal cord injury of rat. BMC Neurosci 2022; 23:16. [PMID: 35303801 PMCID: PMC8932340 DOI: 10.1186/s12868-022-00698-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 02/07/2022] [Indexed: 11/16/2022] Open
Abstract
Background Spinal cord injury (SCI) is a life-threatening traumatic disorder. Paeonol has been confirmed to be involved in a variety of diseases. The purpose of this study is to investigate the role of paeonol on SCI progression. Methods Sprague Dawley (SD) rat was used for the establishment of SCI model to explore the anti-inflammation, anti-oxidation, and neuroprotective effects of paeonol (60 mg/kg) on SCI in vivo. For in vitro study, mouse primary microglial cells (BV-2) were induced by lipopolysaccharide (LPS)/adenosine triphosphate (ATP) treatment. The effect of paeonol on the polarization of LPS/ATP-induced BV-2 cells was determined by detection the expression inducible nitric oxide synthase (iNOS), tumour necrosis factor alpha (TNF-α), arginase-1 (Arg-1), and interleukin (IL)-10 using qRT-PCR. ELISA was used to assess the levels of IL-1β, IL-18, TNF-α, malondialdehyde (MDA), and glutathione (GSH). Western blotting was conducted to determine the levels of NLRP3 inflammasomes and TLR4/MyD88/NF-κB (p65) pathway proteins. Results Paeonol promoted the recovery of locomotion function and spinal cord structure, and decreased spinal cord water content in rats following SCI. Meanwhile, paeonol reduced the levels of apoptosis-associated speck-like protein (ASC), NLRP3, active caspase 1 and N-gasdermin D (N-GSDMD), repressed the contents of IL-1β, IL-18, TNF-α and MDA, and elevated GSH level. In vitro, paeonol exerted similarly inhibiting effects on pyroptosis and inflammation. Meanwhile, paeonol promoted BV-2 cells M2 polarization. In addition, paeonol also inactivated the expression of TLR4/MyD88/NF-κB (p65) pathway. Conclusion Paeonol may regulate NLRP3 inflammasomes and pyroptosis to alleviate SCI, pointing out the potential for treating SCI in clinic.
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Affiliation(s)
- Houling Zhao
- Department of Orthopaedic Trauma, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, 250000, Shandong Province, China
| | - Xi Wang
- Department of Spinal Surgery, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, 250000, Shandong Province, China
| | - Shuheng Liu
- Department of Spinal Surgery, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, 250000, Shandong Province, China
| | - Qingguo Zhang
- Department of Spinal Surgery, Central Hospital Affiliated to Shandong First Medical University, No. 105, Jiefang Road, Jinan City, 250000, Shandong Province, China.
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Zhou C, Zheng J, Fan Y, Wu J. TI: NLRP3 Inflammasome-Dependent Pyroptosis in CNS Trauma: A Potential Therapeutic Target. Front Cell Dev Biol 2022; 10:821225. [PMID: 35186932 PMCID: PMC8847380 DOI: 10.3389/fcell.2022.821225] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/03/2022] [Indexed: 12/22/2022] Open
Abstract
Central nervous system (CNS) trauma, including traumatic brain injury (TBI) and traumatic spinal cord injury (SCI), is characterized by high morbidity, disability, and mortality. TBI and SCI have similar pathophysiological mechanisms and are often accompanied by serious inflammatory responses. Pyroptosis, an inflammation-dependent programmed cell death, is becoming a major problem in CNS post-traumatic injury. Notably, the pyrin domain containing 3 (NLRP3) inflammasome is a key protein in the pyroptosis signaling pathway. Therefore, underlying mechanism of the NLRP3 inflammasome in the development of CNS trauma has attracted much attention. In this review, we briefly summarize the molecular mechanisms of NLRP3 inflammasome in pyroptosis signaling pathway, including its prime and activation. Moreover, the dynamic expression pattern, and roles of the NLRP3 inflammasome in CNS post-traumatic injury are summarized. The therapeutic applications of NLRP3 inflammasome activation inhibitors are also discussed.
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Affiliation(s)
- Conghui Zhou
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jinfeng Zheng
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yunpeng Fan
- The First Affiliated Hospital of Zhejiang University, School of Medicine, Zhejiang University, Hangzhou, China
| | - Junsong Wu
- Department of Orthopaedics of the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- *Correspondence: Junsong Wu,
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Rickman AD, Hilyard A, Heckmann BL. Dying by fire: noncanonical functions of autophagy proteins in neuroinflammation and neurodegeneration. Neural Regen Res 2022; 17:246-250. [PMID: 34269183 PMCID: PMC8463974 DOI: 10.4103/1673-5374.317958] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 02/04/2021] [Accepted: 03/30/2021] [Indexed: 11/04/2022] Open
Abstract
Neuroinflammation and neurodegeneration are key components in the establishment and progression of neurodegenerative diseases including Alzheimer's Disease (AD). Over the past decade increasing evidence is emerging for the use of components of the canonical autophagy machinery in pathways that are characterized by LC3 lipidation yet are distinct from traditional macro-autophagy. One such pathway that utilizes components of the autophagy machinery to target LC3 to endosomes, a process termed LC3-associated endocytosis (LANDO), has recently been identified and regulates neuroinflammation. Abrogation of LANDO in microglia cells results in a propensity for elevated neuroinflammatory cytokine production. Using the well-established 5xFAD model of AD to interrogate neuroinflammatory regulation, impairment of LANDO through deletion of a key upstream regulator Rubicon or other downstream autophagy components, exacerbated disease onset and severity, while deletion of microglial autophagy alone had no measurable effect. Mice presented with robust deposition of the neurotoxic AD protein β-amyloid (Aβ), microglial activation and inflammatory cytokine production, tau phosphorylation, and aggressive neurodegeneration culminating in severe memory impairment. LANDO-deficiency impaired recycling of receptors that recognize Aβ, including TLR4 and TREM2. LANDO-deficiency alone through deletion of the WD-domain of the autophagy protein ATG16L, revealed a role for LANDO in the spontaneous establishment of age-associated AD. LANDO-deficient mice aged to 2 years presented with advanced AD-like disease and pathology correlative to that observed in human AD patients. Together, these studies illustrate an important role for microglial LANDO in regulating CNS immune activation and protection against neurodegeneration. New evidence is emerging that demonstrates a putative linkage between pathways such as LANDO and cell death regulation via apoptosis and possibly necroptosis. Herein, we provide a review of the use of the autophagy machinery in non-canonical mechanisms that alter immune regulation and could have significant impact in furthering our understanding of not only CNS diseases like AD, but likely beyond.
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Affiliation(s)
- Alexis D. Rickman
- Department of Cell Biology, Microbiology & Molecular Biology, University of South Florida, Tampa, FL, USA
| | - Addison Hilyard
- USF Health Byrd Alzheimer's Center and Neuroscience Institute, Morsani College of Medicine, Tampa, FL, USA
| | - Bradlee L. Heckmann
- USF Health Byrd Alzheimer's Center and Neuroscience Institute, Morsani College of Medicine, Tampa, FL, USA
- Department of Molecular Medicine, Morsani College of Medicine, Tampa, FL, USA
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Moasses Ghafary S, Soriano-Teruel PM, Lotfollahzadeh S, Sancho M, Serrano-Candelas E, Karami F, Barigye SJ, Fernández-Pérez I, Gozalbes R, Nikkhah M, Orzáez M, Hosseinkhani S. Identification of NLRP3 PYD Homo-Oligomerization Inhibitors with Anti-Inflammatory Activity. Int J Mol Sci 2022; 23:ijms23031651. [PMID: 35163573 PMCID: PMC8835912 DOI: 10.3390/ijms23031651] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 12/22/2022] Open
Abstract
Inflammasomes are multiprotein complexes that represent critical elements of the inflammatory response. The dysregulation of the best-characterized complex, the NLRP3 inflammasome, has been linked to the pathogenesis of diseases such as multiple sclerosis, type 2 diabetes mellitus, Alzheimer's disease, and cancer. While there exist molecular inhibitors specific for the various components of inflammasome complexes, no currently reported inhibitors specifically target NLRP3PYD homo-oligomerization. In the present study, we describe the identification of QM380 and QM381 as NLRP3PYD homo-oligomerization inhibitors after screening small molecules from the MyriaScreen library using a split-luciferase complementation assay. Our results demonstrate that these NLRP3PYD inhibitors interfere with ASC speck formation, inhibit pro-inflammatory cytokine IL1-β release, and decrease pyroptotic cell death. We employed spectroscopic techniques and computational docking analyses with QM380 and QM381 and the PYD domain to confirm the experimental results and predict possible mechanisms underlying the inhibition of NLRP3PYD homo-interactions.
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Affiliation(s)
- Soroush Moasses Ghafary
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran; (S.M.G.); (S.L.); (F.K.); (M.N.)
| | - Paula M. Soriano-Teruel
- Centro de Investigación Príncipe Felipe, Targeted Therapies on Cancer and Inflammation Laboratory, 46012 Valencia, Spain; (P.M.S.-T.); (M.S.); (I.F.-P.)
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Laboratory, 46012 Valencia, Spain
| | - Shima Lotfollahzadeh
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran; (S.M.G.); (S.L.); (F.K.); (M.N.)
| | - Mónica Sancho
- Centro de Investigación Príncipe Felipe, Targeted Therapies on Cancer and Inflammation Laboratory, 46012 Valencia, Spain; (P.M.S.-T.); (M.S.); (I.F.-P.)
| | - Eva Serrano-Candelas
- ProtoQSAR SL, Centro Europeo de Empresas Innovadoras, Parque Tecnológico de Valencia, 46980 Paterna, Spain; (E.S.-C.); (S.J.B.); (R.G.)
| | - Fatemeh Karami
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran; (S.M.G.); (S.L.); (F.K.); (M.N.)
| | - Stephen J. Barigye
- ProtoQSAR SL, Centro Europeo de Empresas Innovadoras, Parque Tecnológico de Valencia, 46980 Paterna, Spain; (E.S.-C.); (S.J.B.); (R.G.)
- MolDrug AI Systems SL, 46018 Valencia, Spain
| | - Iván Fernández-Pérez
- Centro de Investigación Príncipe Felipe, Targeted Therapies on Cancer and Inflammation Laboratory, 46012 Valencia, Spain; (P.M.S.-T.); (M.S.); (I.F.-P.)
| | - Rafael Gozalbes
- ProtoQSAR SL, Centro Europeo de Empresas Innovadoras, Parque Tecnológico de Valencia, 46980 Paterna, Spain; (E.S.-C.); (S.J.B.); (R.G.)
- MolDrug AI Systems SL, 46018 Valencia, Spain
| | - Maryam Nikkhah
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran; (S.M.G.); (S.L.); (F.K.); (M.N.)
| | - Mar Orzáez
- Centro de Investigación Príncipe Felipe, Targeted Therapies on Cancer and Inflammation Laboratory, 46012 Valencia, Spain; (P.M.S.-T.); (M.S.); (I.F.-P.)
- Correspondence: (M.O.); (S.H.)
| | - Saman Hosseinkhani
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14117-13116, Iran
- Correspondence: (M.O.); (S.H.)
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WU B, LIANG X, ZHAO F, FAN W, LI C, ZHAO B, REN J. Clinic serum levels of Plin5 is therapeutic target of spinal cord injury and Plin5 reduced inflammation in spinal cord injury via silent information regulator 1 dependent inhibition of NLRP3 inflammasome. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.51121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | - Wei FAN
- Shanxi Medical University, China
| | | | - Bin ZHAO
- Shanxi Medical University, China
| | - Jie REN
- Shanxi Medical University, China
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Dutta D, Liu J, Xiong H. NLRP3 inflammasome activation and SARS-CoV-2-mediated hyperinflammation, cytokine storm and neurological syndromes. INTERNATIONAL JOURNAL OF PHYSIOLOGY, PATHOPHYSIOLOGY AND PHARMACOLOGY 2022; 14:138-160. [PMID: 35891930 PMCID: PMC9301183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/02/2022] [Indexed: 04/13/2023]
Abstract
Despite the introduction of vaccines and drugs for SARS-CoV-2, the COVID-19 pandemic continues to spread throughout the world. In severe COVID-19 patients, elevated levels of proinflammatory cytokines have been detected in the blood, lung cells, and bronchoalveolar lavage, which is referred to as a cytokine storm, a consequence of overactivation of the NLR family pyrin domain-containing protein 3 (NLRP3) inflammasome and resultant excessive cytokine production. The hyperinflammatory response and cytokine storm cause multiorgan impairment including the central nervous system, in addition to a detriment to the respiratory system. Hyperactive NLRP3 inflammasome, due to dysregulated immune response, is the primary cause of COVID-19 severity. The severity could be enhanced due to viral evolution leading to the emergence of mutated variants of concern, such as delta and omicron. In this review, we elaborate on the inflammatory responses associated with the NLRP3 inflammasome activation in COVID-19 pathogenesis, the mechanisms for the NLRP3 inflammasome activation and pathway involved, cytokine storm, and neurological complications as long-term consequences of SARS-CoV-2 infection. Also discussed is the therapeutic potential of NLRP3 inflammasome inhibitors for the treatment of COVID-19.
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Affiliation(s)
- Debashis Dutta
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center Omaha, NE 68198-5880, USA
| | - Jianuo Liu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center Omaha, NE 68198-5880, USA
| | - Huangui Xiong
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center Omaha, NE 68198-5880, USA
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Dai C, Liu B, Peng B, Qu B, Lin J, Peng B, Li DM. Entinostat Improves Motor Function and Neuronal Damage Via Downregulating NLRP3 Inflammasome Activation After Spinal Cord Injury. Front Pharmacol 2021; 12:774539. [PMID: 34899337 PMCID: PMC8664236 DOI: 10.3389/fphar.2021.774539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 10/25/2021] [Indexed: 01/11/2023] Open
Abstract
Background: Spinal cord injury (SCI), a major public health problem, has no effective treatment. A large number of studies have confirmed that histone deacetylases (HDACs) are involved in the physiologic processes that occur following SCI. We tried to uncover the potential neuroprotective role of entinostat (a class I HDAC inhibitor) in SCI. Methods: We conducted a study on a preclinical mouse model of SCI and OGD-induced neuronal damage to present the role of entinostat by the analysis of motor function, histopathologic damage, local NLRP3 inflammasome activation, and neuronal damage. Results: The results showed that entinostat suppressed HDAC activation (including HDAC1 and HDAC3 expression), improved the grip strength and BMS score, spinal edema, cell death, and local NLRP3 inflammasome activation in the spinal cord following SCI. Furthermore, entinostat significantly increased OGD-inhibited neuronal activity and decreased PI-positive cells, HDAC activation, caspase-1 activation, IL-1β and IL-18 levels, and NLRP3 expression. Conclusion: In summary, we first documented that entinostat improved the motor function, histopathologic damage, and local inflammatory response and NLRP3 inflammasome activation in the spinal cord following SCI and also presented the neuroprotective role of OGD-induced neuronal damage via the NLRP3 inflammasome. Thus, our study has the potential to reveal the interaction between the HDAC and NLRP3 inflammasome in the pathologic process as well as SCI and further promote the clinical indications of HDACi entinostat and clinical treatment for the inflammatory response after SCI.
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Affiliation(s)
- Chen Dai
- Orthopedics and Trauma Department, The 963rd (224th) Hospital of People's Liberation Army, 963rd Hospital of Joint Logistics Support Force of PLA, Jiamusi, China.,Department of Orthopedics, The Third Medical Center, General Hospital of the Chinese People's Liberation Army, Beijing, China
| | - Bin Liu
- Department of Orthopaedics, General Hospital of Northern Theater Command, Shenyang, China
| | - Bibo Peng
- Outpatient Department, The Third Medical Center of Chinese People's Liberation Army General Hospital, Beijing, China
| | - Bo Qu
- Tianjin University, Tianjin Key Laboratory for Disaster and Emergency Medicine Technology, Tianjin, China
| | - Jiezhi Lin
- Military Burn Center, The 963rd (224th) Hospital of People's Liberation Army, 963rd Hospital of Joint Logistics Support Force of PLA, Jiamusi, China
| | - Baogan Peng
- Department of Orthopedics, The Third Medical Center, General Hospital of the Chinese People's Liberation Army, Beijing, China
| | - Duan-Ming Li
- Department of Orthopedics, The Third Medical Center, General Hospital of the Chinese People's Liberation Army, Beijing, China
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Hu Y, Wang B, Li S, Yang S. Pyroptosis, and its Role in Central Nervous System Disease. J Mol Biol 2021; 434:167379. [PMID: 34838808 DOI: 10.1016/j.jmb.2021.167379] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/16/2021] [Accepted: 11/20/2021] [Indexed: 02/07/2023]
Abstract
Pyroptosis is an inflammatory form of cell death executed by transmembrane pore-forming proteins known as gasdermins and can be activated in an inflammasome-dependent or -independent manner. Inflammasome-dependent pyroptosis is triggered in response to pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patterns (DAMPs) and has emerged as an important player in the pathogenesis of multiple inflammatory diseases, mainly by releasing inflammatory contents. More recently, numerous studies have revealed the intricate mechanisms of pyroptosis and its role in the development of neuroinflammation in central nervous system (CNS) diseases. In this review, we summarize current understandings of the molecular and regulatory mechanisms of pyroptosis. In addition, we discuss how pyroptosis can drive different forms of neurological diseases and new promising therapeutic strategies targeting pyroptosis that can be leveraged to treat neuroinflammation.
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Affiliation(s)
- Yingchao Hu
- Department of Immunology, Key Laboratory of Immunological Environment and Disease, Gusu School, State Key Laboratory of Reproductive Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Center for Global Health, Nanjing Medical University, Nanjing 211166, China
| | - Bingwei Wang
- Department of Pharmacology, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Sheng Li
- Department of Neurology, Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China.
| | - Shuo Yang
- Department of Immunology, Key Laboratory of Immunological Environment and Disease, Gusu School, State Key Laboratory of Reproductive Medicine, Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Center for Global Health, Nanjing Medical University, Nanjing 211166, China.
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38
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Amo-Aparicio J, Garcia-Garcia J, Puigdomenech M, Francos-Quijorna I, Skouras DB, Dinarello CA, Lopez-Vales R. Inhibition of the NLRP3 inflammasome by OLT1177 induces functional protection and myelin preservation after spinal cord injury. Exp Neurol 2021; 347:113889. [PMID: 34624330 DOI: 10.1016/j.expneurol.2021.113889] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 09/30/2021] [Accepted: 10/03/2021] [Indexed: 12/27/2022]
Abstract
Spinal cord injury (SCI) leads to irreversible functional deficits due to the disruption of axons and the death of neurons and glial cells. The inflammatory response that occurs in the injured spinal cord results in tissue degeneration; thus, targeting inflammation after acute SCI is expected to ameliorate histopathological evidence indicative of damage and, consequently, reduce functional disabilities. Interleukin 1 beta (IL-1β) and interleukin 18 (IL-18) are pro-inflammatory cytokines members of the IL-1 family that initiate and propagate inflammation. Here, we report that protein levels of IL-1β and IL-18 were increased in spinal cord parenchyma after SCI, but with different expression profiles. Whereas levels of IL-1β were rapidly increased reaching peak levels at 12 h after the injury, levels of IL-18 did not increase until 7 days after the injury. Since activation of the NLRP3 inflammasome is required for the processing and release of IL-1β and IL-18, we intraperitoneally administered OLT1177, a selective inhibitor of the NLRP3 inflammasome, to reduce the contribution of these cytokines to SCI. At a dose of 200 mg/kg, OLT1177 protected against neurological deficits and histological evidence of damage. OLT1177 also reduced the levels of IL-1β in the spinal cord after contusion injury and diminished the accumulation of neutrophils and macrophages at later time points. These data suggest that targeting the NLRP3 inflammasome with OLT1177 could be a novel therapeutic strategy to arrest neuroinflammation and reduce functional impairments after acute SCI in humans.
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Affiliation(s)
- Jesus Amo-Aparicio
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Joana Garcia-Garcia
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Institut de Neurociències, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Universitat Autònoma de Barcelona, Bellaterra, Catalonia 08193, Spain
| | - Maria Puigdomenech
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Institut de Neurociències, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Universitat Autònoma de Barcelona, Bellaterra, Catalonia 08193, Spain
| | - Isaac Francos-Quijorna
- Regeneration Group, Wolfson Centre for Age-Related Diseases, IoPPN, King's College London, London, UK
| | | | - Charles A Dinarello
- Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA; Department of Medicine, Radboud University Medical Center, 6500 Nijmegen, the Netherlands
| | - Ruben Lopez-Vales
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Institut de Neurociències, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Universitat Autònoma de Barcelona, Bellaterra, Catalonia 08193, Spain.
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Kuwar R, Rolfe A, Di L, Blevins H, Xu Y, Sun X, Bloom GS, Zhang S, Sun D. A Novel Inhibitor Targeting NLRP3 Inflammasome Reduces Neuropathology and Improves Cognitive Function in Alzheimer's Disease Transgenic Mice. J Alzheimers Dis 2021; 82:1769-1783. [PMID: 34219728 DOI: 10.3233/jad-210400] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Alzheimer's disease (AD) is a progressive neurodegenerative disorder, and the most common type of dementia. A growing body of evidence has implicated neuroinflammation as an essential player in the etiology of AD. Inflammasomes are intracellular multiprotein complexes and essential components of innate immunity in response to pathogen- and danger-associated molecular patterns. Among the known inflammasomes, the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome plays a critical role in the pathogenesis of AD. OBJECTIVE We recently developed a novel class of small molecule inhibitors that selectively target the NLRP3 inflammasome. One of the lead compounds, JC124, has shown therapeutic efficacy in a transgenic animal model of AD. In this study we tested the preventative efficacy of JC124 in another strain of transgenic AD mice. METHODS In this study, 5-month-old female APP/PS1 and matched wild type mice were treated orally with JC124 for 3 months. After completion of treatment, cognitive functions and AD pathologies, as well as protein expression levels of synaptic proteins, were assessed. RESULTS We found that inhibition of NLRP3 inflammasome with JC124 significantly decreased multiple AD pathologies in APP/PS1 mice, including amyloid-β (Aβ) load, neuroinflammation, and neuronal cell cycle re-entry, accompanied by preserved synaptic plasticity with higher expression of pre- and post-synaptic proteins, increased hippocampal neurogenesis, and improved cognitive functions. CONCLUSION Our study demonstrates the importance of the NLRP3 inflammasome in AD pathological development, and pharmacological inhibition of NLRP3 inflammasome with small molecule inhibitors represents a potential therapy for AD.
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Affiliation(s)
- Ram Kuwar
- Department of Anatomy and Neurobiology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Andrew Rolfe
- Department of Anatomy and Neurobiology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Long Di
- Department of Anatomy and Neurobiology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Hallie Blevins
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Yiming Xu
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Xuehan Sun
- Departments of Biology, University of Virginia, Charlottesville, VA, USA
| | - George S Bloom
- Departments of Biology, University of Virginia, Charlottesville, VA, USA.,Departments of Cell Biology, University of Virginia, Charlottesville, VA, USA.,Departments of Neuroscience, University of Virginia, Charlottesville, VA, USA
| | - Shijun Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA, USA
| | - Dong Sun
- Department of Anatomy and Neurobiology, School of Medicine, Virginia Commonwealth University, Richmond, VA, USA
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Mechanistic Insight into the Effects of Curcumin on Neuroinflammation-Driven Chronic Pain. Pharmaceuticals (Basel) 2021; 14:ph14080777. [PMID: 34451874 PMCID: PMC8397941 DOI: 10.3390/ph14080777] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 12/22/2022] Open
Abstract
Chronic pain is a persistent and unremitting condition that has immense effects on patients' quality of life. Studies have shown that neuroinflammation is associated with the induction and progression of chronic pain. The activation of microglia and astrocytes is the major hallmark of spinal neuroinflammation leading to neuronal excitability in the projection neurons. Excessive activation of microglia and astrocytes is one of the major contributing factors to the exacerbation of pain. However, the current chronic pain treatments, mainly by targeting the neuronal cells, remain ineffective and unable to meet the patients' needs. Curcumin, a natural plant product found in the Curcuma genus, improves chronic pain by diminishing the release of inflammatory mediators from the spinal glia. This review details the role of curcumin in microglia and astrocytes both in vitro and in vivo and how it improves pain. We also describe the mechanism of curcumin by highlighting the major glia-mediated cascades in pain. Moreover, the role of curcumin on inflammasome and epigenetic regulation is discussed. Furthermore, we discuss the strategies used to improve the efficacy of curcumin. This review illustrates that curcumin modulating microglia and astrocytes could assure the treatment of chronic pain by suppressing spinal neuroinflammation.
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41
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Corcoran SE, Halai R, Cooper MA. Pharmacological Inhibition of the Nod-Like Receptor Family Pyrin Domain Containing 3 Inflammasome with MCC950. Pharmacol Rev 2021; 73:968-1000. [PMID: 34117094 DOI: 10.1124/pharmrev.120.000171] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Activation of the Nod-like receptor family pyrin domain containing 3 (NLRP3) inflammasome drives release of the proinflammatory cytokines interleukin (IL)-1β and IL-18 and induces pyroptosis (lytic cell death). These events drive chronic inflammation, and as such, NLRP3 has been implicated in a large number of human diseases. These range from autoimmune conditions, the simplest of which is NLRP3 gain-of-function mutations leading to an orphan disease, cryopyrin-associated period syndrome, to large disease burden indications, such as atherosclerosis, heart failure, stroke, neurodegeneration, asthma, ulcerative colitis, and arthritis. The potential clinical utility of NLRP3 inhibitors is substantiated by an expanding list of indications in which NLRP3 activation has been shown to play a detrimental role. Studies of pharmacological inhibition of NLRP3 in nonclinical models of disease using MCC950 in combination with human genetics, epigenetics, and analyses of the efficacy of biologic inhibitors of IL-1β, such as anakinra and canakinumab, can help to prioritize clinical trials of NLRP3-directed therapeutics. Although MCC950 shows excellent (nanomolar) potency and high target selectivity, its pharmacokinetic and toxicokinetic properties limited its therapeutic development in the clinic. Several improved, next-generation inhibitors are now in clinical trials. Hence the body of research in a plethora of conditions reviewed herein may inform analysis of the potential translational value of NLRP3 inhibition in diseases with significant unmet medical need. SIGNIFICANCE STATEMENT: The nod-like receptor family pyrin domain containing 3 (NLRP3) inflammasome is one of the most widely studied and best validated biological targets in innate immunity. Activation of NLRP3 can be inhibited with MCC950, resulting in efficacy in more than 100 nonclinical models of inflammatory diseases. As several next-generation NLRP3 inhibitors are entering proof-of-concept clinical trials in 2020, a review of the pharmacology of MCC950 is timely and significant.
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Affiliation(s)
- Sarah E Corcoran
- Trinity College Dublin, Dublin, Ireland (S.E.C.); Inflazome, D6 Grain House, Mill Court, Great Shelford, Cambridge, United Kingdom (R.H., M.A.C.); and Institute for Molecular Bioscience, University of Queensland, Queensland, Australia (M.A.C.)
| | - Reena Halai
- Trinity College Dublin, Dublin, Ireland (S.E.C.); Inflazome, D6 Grain House, Mill Court, Great Shelford, Cambridge, United Kingdom (R.H., M.A.C.); and Institute for Molecular Bioscience, University of Queensland, Queensland, Australia (M.A.C.)
| | - Matthew A Cooper
- Trinity College Dublin, Dublin, Ireland (S.E.C.); Inflazome, D6 Grain House, Mill Court, Great Shelford, Cambridge, United Kingdom (R.H., M.A.C.); and Institute for Molecular Bioscience, University of Queensland, Queensland, Australia (M.A.C.)
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Mamun AA, Wu Y, Nasrin F, Akter A, Taniya MA, Munir F, Jia C, Xiao J. Role of Pyroptosis in Diabetes and Its Therapeutic Implications. J Inflamm Res 2021; 14:2187-2206. [PMID: 34079327 PMCID: PMC8164340 DOI: 10.2147/jir.s291453] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/14/2021] [Indexed: 12/13/2022] Open
Abstract
Pyroptosis is mainly considered as a new pro-inflammatory mediated-programmed cell death. In addition, pyroptosis is described by gasdermin-induced pore formation on the membrane, cell swelling and rapid lysis, and several pro-inflammatory mediators interleukin-1β (IL-1β) and interleukin-18 (IL-18) release. Extensive studies have shown that pyroptosis is commonly involved by activating the caspase-1-dependent canonical pathway and caspase-4/5/11-dependent non-canonical pathway. However, pyroptosis facilitates local inflammation and inflammatory responses. Current researches have reported that pyroptosis promotes the progression of several diabetic complications. Emerging studies have suggested that some potential molecules targeting the pyroptosis and inflammasome signaling pathways could be a novel therapeutic avenue for managing and treating diabetes and its complications in the near future. Our narrative review concisely describes the possible mechanism of pyroptosis and its progressive understanding of the development of diabetic complications.
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Affiliation(s)
- Abdullah Al Mamun
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Fatema Nasrin
- Institute of Health and Biomedical Innovation, Translational Research Institute, Brisbane, Australia.,School of Clinical Sciences, Queensland University of Technology, Brisbane, Australia
| | - Afroza Akter
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Masuma Afrin Taniya
- Department of Life Sciences, School of Environment and Life Sciences, Independent University, Bangladesh, Dhaka, 1229, Bangladesh
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, People's Republic of China
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027, Zhejiang Province, People's Republic of China
| | - Jian Xiao
- Department of Hand Surgery and Peripheral Neurosurgery, The First Affiliated Hospital and School of Pharmaceutical Sciences, Wenzhou, Zhejiang Province, 325035, People's Republic of China
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Ochratoxin A induces nephrotoxicity in vitro and in vivo via pyroptosis. Arch Toxicol 2021; 95:1489-1502. [PMID: 33543323 DOI: 10.1007/s00204-021-02993-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/28/2021] [Indexed: 01/12/2023]
Abstract
Ochratoxin A (OTA), a prevalent nephrotoxic mycotoxin contaminant in food and feedstuff, has been reported to induce renal injury. To disclose the nephrotoxicity of continuous administration of OTA and to investigate potential mechanisms related to pyroptosis, male C57BL/6 mice were intraperitoneally injected with 1.0 and 2.0 mg/kg B.W. OTA every other day for 14 days. At 2.0 mg/kg B.W. OTA administration significantly increased histological injury and renal fibrosis molecules (α-SMA, Vimentin, TGF-β) and activated the NOD-like receptor protein 3 (NLRP3) inflammasome and induced pyroptosis compared with control. In the in vitro tests, Madin-Darby canine kidney (MDCK) epithelial cells were exposed to 0-4.0 μg/ml OTA for 24 h in serum-free medium. Data showed that OTA dose-dependently affected cell viability and significantly up-regulated renal fibrosis genes (α-SMA, Vimentin, TGF-β). 2.0 μg/ml OTA significantly induced NLRP3 inflammasome activation and caspase-1-dependent pyroptosis, increasing the expression and secretion of pro-inflammatory cytokines (IL-6, TNF-α) and pyroptosis-related genes (GSDMD, IL-1β, IL-18) in MDCK cells. These outcomes were significantly abrogated after inhibiting NLRP3 activation with inhibitor MCC950 and silencing NLRP3 with small interfering RNA (siRNA). Furthermore, knockdown of caspase-1 also ameliorated OTA-induced renal fibrosis via the inhibition of pyroptosis. Collectively, the chosen doses of OTA-triggered nephrotoxicity through NLRP3 inflammasome activation and caspase-1-dependent pyroptosis both in vitro and in vivo.
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Al Mamun A, Wu Y, Monalisa I, Jia C, Zhou K, Munir F, Xiao J. Role of pyroptosis in spinal cord injury and its therapeutic implications. J Adv Res 2021; 28:97-109. [PMID: 33364048 PMCID: PMC7753222 DOI: 10.1016/j.jare.2020.08.004] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 08/05/2020] [Accepted: 08/08/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Currently, spinal cord injury (SCI) is a pathological incident that triggers several neuropathological conditions, leading to the initiation of neuronal damage with several pro-inflammatory mediators' release. However, pyroptosis is recognized as a new programmed cell death mechanism regulated by the stimulation of caspase-1 and/or caspase-11/-4/-5 signaling pathways with a series of inflammatory responses. AIM Our current review concisely summarizes the potential role of pyroptosis-regulated programmed cell death in SCI, according to several molecular and pathophysiological mechanisms. This review also highlights the targeting of pyroptosis signaling pathways and inflammasome components and its therapeutic implications for the treatment of SCI. KEY SCIENTIFIC CONCEPTS Multiple pieces of evidence have illustrated that pyroptosis plays significant roles in cell swelling, plasma membrane lysis, chromatin fragmentation and intracellular pro-inflammatory factors including IL-18 and IL-1β release. In addition, pyroptosis is directly mediated by the recently discovered family of pore-forming protein known as GSDMD. Current investigations have documented that pyroptosis-regulated cell death plays a critical role in the pathogenesis of multiple neurological disorders as well as SCI. Our narrative article suggests that inhibiting the pyroptosis-regulated cell death and inflammasome components could be a promising therapeutic approach for the treatment of SCI in the near future.
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Key Words
- AIM2, Absent in melanoma 2
- ASC, apoptosis-associated speck-like protein
- ATP, Adenosine triphosphate
- BBG, Brilliant blue G
- CCK-8, Cell Counting Kit-8
- CNS, central nervous system
- CO, Carbon monoxide
- CORM-3, Carbon monoxide releasing molecle-3
- Caspase-1
- Cx43, Connexin 43
- DAMPs, Damage-associated molecular patterns
- DRD1, Dopamine Receptor D1
- ECH, Echinacoside
- GSDMD, Gasdermin D
- Gal-3, Galectin-3
- H2O2, Hydrogen peroxide
- HO-1, Heme oxygenase-1
- IL-18, Interleukin-18
- IL-1β, Interleukin-1 beta
- IRE1, Inositol requiring enzyme 1
- JOA, Japanese orthopedics association
- LPS, Lipopolysaccharide
- NDI, Neck data index
- NF-κB, Nuclear factor-kappa B
- NLRP1, NOD-like receptor protein 1
- NLRP1b, NOD-like receptor protein 1b
- NLRP3
- NLRP3, Nucleotide-binding domain-like receptor protein 3
- Neuroinflammation
- Nrf2, Nuclear factor erythroid 2-related factor 2
- OPCs, Oligodendrocyte progenitor cells
- PAMPs, Pathogen-associated molecular patterns
- PRRs, Pattern recognition receptors
- Pyroptosis
- ROS, Reactive oxygen species
- Spinal cord injury
- TLR4, Toll-like receptor 4
- TXNIP, Thioredoxin-interacting protein
- Therapeutic implications
- double stranded DNAIR, Ischemia reperfusion
- si-RNA, Small interfering RNA
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Affiliation(s)
- Abdullah Al Mamun
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035 Zhejiang Province, China
| | - Yanqing Wu
- Institute of Life Sciences, Wenzhou University, Wenzhou, 325035 Zhejiang Province, China
| | - Ilma Monalisa
- Department of Pharmacy, Southeast University, Banani, Dhaka 1213, Bangladesh
| | - Chang Jia
- Pediatric Research Institute, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang Province, China
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325027 Zhejiang Province, China
| | - Fahad Munir
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000 Zhejiang Province, China
| | - Jian Xiao
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035 Zhejiang Province, China
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Chen Y, Li Y, Guo L, Hong J, Zhao W, Hu X, Chang C, Liu W, Xiong K. Bibliometric Analysis of the Inflammasome and Pyroptosis in Brain. Front Pharmacol 2021; 11:626502. [PMID: 33551822 PMCID: PMC7854385 DOI: 10.3389/fphar.2020.626502] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Considering the pivotal role of inflammasome/pyroptosis in biological function, we visually analyzed the research hotspots of inflammasome/pyroptosis related to the brain in this work through the method of bibliometrics from the Web of Science (WOS) Core database over the past two decades. Methods: Documents were retrieved from WOS Core Collection on October 16, 2020. The search terms and strategies used for the WOS database are as follow: # 1, “pyroptosis”; # 2, “pyroptotic”; # 3, “inflammasome”; # 4, “pyroptosome”; # 5 “brain”; # 6, “# 1” OR “# 2” OR “# 3” OR “# 4”; # 7, “# 5” AND “# 6”. We selected articles and reviews published in English from 2000 to 2020. Visualization analysis and statistical analysis were performed by VOSviewer 1.6.15 and CiteSpace 5.7. R2. Results: 1,222 documents were selected for analysis. In the approximately 20 years since the pyroptosis was first presented, the publications regarding the inflammasome and pyroptosis in brain were presented since 2005. The number of annual publications increased gradually over a decade, which are involved in this work, and will continue to increase in 2020. The most prolific country was China with 523 documents but the United States was with 16,328 citations. The most influential author was Juan Pablo de Rivero Vaccari with 27 documents who worked at the University of Miami. The bibliometric analysis showed that inflammasome/pyroptosis involved a variety of brain cell types (microglia, astrocyte, neuron, etc.), physiological processes, ER stress, mitochondrial function, oxidative stress, and disease (traumatic brain injuries, stroke, Alzheimer’s disease, and Parkinson’s disease). Conclusion: The research of inflammasome/pyroptosis in brain will continue to be the hotspot. We recommend investigating the mechanism of mitochondrial molecules involved in the complex crosstalk of pyroptosis and regulated cell deaths (RCDs) in brain glial cells, which will facilitate the development of effective therapeutic strategies targeting inflammasome/pyroptosis and large-scale clinical trials. Thus, this study presents the trend and characteristic of inflammasome/pyroptosis in brain, which provided a helpful bibliometric analysis for researchers to further studies.
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Affiliation(s)
- Yuhua Chen
- Central Laboratory of Medicine School, Xi'an Peihua University, Xi'an, China.,Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, China.,Department of Neurosurgery, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Yan Li
- Department of Histology and Embryology, School of Basic Medical Science, Xinjiang Medical University, Urumqi, China
| | - Limin Guo
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Jun Hong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Wenjuan Zhao
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, China
| | - Ximin Hu
- Clinical Medicine Eight-year Program, 02 Class, 17 Grade, Xiangya School of Medicine, Central South University, Changsha, China
| | - Cuicui Chang
- Central Laboratory of Medicine School, Xi'an Peihua University, Xi'an, China
| | - Wei Liu
- Department of Neurosurgery, First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Kun Xiong
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, China.,Hunan Key Laboratory of Ophthalmology, Changsha, China
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Therapeutic role of inflammasome inhibitors in neurodegenerative disorders. Brain Behav Immun 2021; 91:771-783. [PMID: 33157255 DOI: 10.1016/j.bbi.2020.11.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 12/16/2022] Open
Abstract
Neuroinflammation, characterized by the activation of glial cells, is a hallmark in several neurological and neurodegenerative disorders. Inadequate inflammation cannot eliminate the infection of pathogens, while excessive or hyper-reactive inflammation can cause chronic or systemic inflammatory diseases affecting the central nervous system (CNS). In response to a brain injury or pathogen invasion, the pathogen recognition receptors (PRRs) expressed on glial cells are activated via binding to cellular damage-associated molecular patterns (DAMPs) or pathogen-associated molecular patterns (PAMPs). This subsequently leads to the activation of NOD (nucleotide-binding oligomerization domain)-like receptor proteins (NLRs). In neurodegenerative diseases such as HIV-1-associated neurocognitive disorders (HAND), Alzheimer's disease (AD), Parkinson's disease (PD), and multiple sclerosis (MS), chronic inflammation is a critical contributing factor for disease manifestation including pathogenesis. Emerging evidence points to the involvement of "inflammasomes", especially the nucleotide-binding oligomerization domain, leucine-rich repeat, and pyrin domain-containing (NLRP) complex in the development of these diseases. The activated NLRP3 results in the proteolytic activation of caspase-1 that facilitates the cleavage of pro-IL-1β and the secretion of IL-1β and IL-18 proinflammatory cytokines. Accordingly, these and other seminal findings have led to the development of NLRP-targeting small-molecule therapeutics as possible treatment options for neurodegenerative disorders. In this review, we will discuss the new advances and evidence-based literature concerning the role of inflammasomes in neurodegenerative diseases, its role in the neurological repercussions of CNS chronic infection, and the examples of preclinical or clinically tested NLRP inhibitors as potential strategies for the treatment of chronic neurological diseases.
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Wang H, Zhou WX, Huang JF, Zheng XQ, Tian HJ, Wang B, Fu WL, Wu AM. Endocrine Therapy for the Functional Recovery of Spinal Cord Injury. Front Neurosci 2020; 14:590570. [PMID: 33390881 PMCID: PMC7773784 DOI: 10.3389/fnins.2020.590570] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 11/23/2020] [Indexed: 02/05/2023] Open
Abstract
Spinal cord injury (SCI) is a major cause of physical disability and leads to patient dissatisfaction with their quality of life. Patients with SCI usually exhibit severe clinical symptoms, including sensory and motor dysfunction below the injured levels, paraplegia, quadriplegia and urinary retention, which can exacerbate the substantial medical and social burdens. The major pathological change observed in SCI is inflammatory reaction, which induces demyelination, axonal degeneration, and the apoptosis and necrosis of neurons. Traditional medical treatments are mainly focused on the recovery of motor function and prevention of complications. To date, numerous studies have been conducted to explore the cellular and molecular mechanism of SCI and have proposed lots of effective treatments, but the clinical applications are still limited due to the complex pathogenesis and poor prognosis after SCI. Endocrine hormones are kinds of molecules that are synthesized by specialized endocrine organs and can participate in the regulation of multiple physiological activities, and their protective effects on several disorders have been widely discussed. In addition, many studies have identified that endocrine hormones can promote nerve regeneration and functional recovery in individuals with central nervous system diseases. Therefore, studies investigating the clinical applications of endocrine hormones as treatments for SCI are necessary. In this review, we described the neuroprotective roles of several endocrine hormones in SCI; endocrine hormone administration reduces cell death and promotes functional repair after SCI. We also proposed novel therapies for SCI.
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Affiliation(s)
- Hui Wang
- Zhejiang Provincial Key Laboratory of Orthopaedics, Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Wen-Xian Zhou
- Zhejiang Provincial Key Laboratory of Orthopaedics, Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jin-Feng Huang
- Zhejiang Provincial Key Laboratory of Orthopaedics, Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xuan-Qi Zheng
- Zhejiang Provincial Key Laboratory of Orthopaedics, Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Hai-Jun Tian
- Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Wang
- Department of Sports Medicine and Adult Reconstruction Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wei-Li Fu
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - Ai-Min Wu
- Zhejiang Provincial Key Laboratory of Orthopaedics, Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
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Iqubal A, Syed MA, Najmi AK, Azam F, Barreto GE, Iqubal MK, Ali J, Haque SE. Nano-engineered nerolidol loaded lipid carrier delivery system attenuates cyclophosphamide neurotoxicity - Probable role of NLRP3 inflammasome and caspase-1. Exp Neurol 2020; 334:113464. [PMID: 32941795 DOI: 10.1016/j.expneurol.2020.113464] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/29/2020] [Accepted: 09/12/2020] [Indexed: 01/15/2023]
Abstract
Neuroinflammation is one of the most common etiology in various neurological disorders and responsible for multi-array neurotoxic manifestations such as neurodegeneration, neurotransmitters alteration and cognitive dysfunction. NR (Nerolidol) is a natural bioactive molecule which possesses significant antioxidant and anti-inflammatory potential, but suffers from glitches of low solubility, low bioavailability and fast hepatic metabolism. In the current study, we fabricated nano-engineered lipid carrier of nerolidol (NR-NLC) for its effective delivery into the brain and explored its effect on neuroinflammation, neurotransmitters level and on dysfunctional behavioral attributes induced by CYC (cyclophosphamide). The binding affinity of nerolidol with NLRP3 and TLR-4 was performed which showed stong interaction between them. NR-NLC was prepared by the ultrasonication methods and particle size was determined by Zeta-sizer. Swiss Albino mice were divided into 5 groups (n = 6), assessed for behavioral dysfunction, and sacrificed on the fifteenth day following cyclophosphamide treatment. Brains were then removed and used for biochemical, histopathological, immunohistochemical and fluorescence microscopic analysis. Biochemical analysis showed increased levels of MDA, TNF-α, IL-6, IL-1β, acetylcholine esterase, BDNF, 5-HT and dopamine, and reduced levels of SOD, CAT, GSH, IL-10, along with significant behavioral dysfunction in cyclophosphamide-treated animals. Significant neuronal damage was also observed in the histological study. Immunohistochemical analysis demonstrated increased expression of NLRP3 and caspase-1. Fluorescence microscopic analysis showed significant availability of NR-NLC in the hippocampus and cortex region. In contrast, treatment with NR-NLC effectively mitigated the aforementioned neurotoxic manifestation as compared to NR suspension. Our results showed potent neuroprotective effect of NR-NLC via modulation of oxidative stress, NLRP3 inflammasome, caspase-1 and neurotransmitter status.
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Affiliation(s)
- Ashif Iqubal
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Mansoor Ali Syed
- Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Abul Kalam Najmi
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Faizul Azam
- Department of Pharmaceutical Chemistry & Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Saudi Arabia
| | - George E Barreto
- Department of Biological Sciences, University of Limerick, Limerick, Ireland; Health Research Institute, University of Limerick, Limerick, Ireland
| | - Mohammad Kashif Iqubal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Javed Ali
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
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Chen YQ, Wang SN, Shi YJ, Chen J, Ding SQ, Tang J, Shen L, Wang R, Ding H, Hu JG, Lü HZ. CRID3, a blocker of apoptosis associated speck like protein containing a card, ameliorates murine spinal cord injury by improving local immune microenvironment. J Neuroinflammation 2020; 17:255. [PMID: 32861243 PMCID: PMC7456508 DOI: 10.1186/s12974-020-01937-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/20/2020] [Indexed: 01/25/2023] Open
Abstract
Background After spinal cord injury (SCI), destructive immune cell subsets are dominant in the local microenvironment, which are the important mechanism of injury. Studies have shown that inflammasomes play an important role in the inflammation following SCI, and apoptosis-associated speck-like protein containing a card (ASC) is the adaptor protein shared by inflammasomes. Therefore, we speculated that inhibiting ASC may improve the local microenvironment of injured spinal cord. Here, CRID3, a blocker of ASC oligomerization, was used to study its effect on the local microenvironment and the possible role in neuroprotection following SCI. Methods Murine SCI model was created using an Infinite Horizon impactor at T9 vertebral level with a force of 50 kdynes and CRID3 (50 mg/kg) was intraperitoneally injected following injury. ASC and its downstream molecules in inflammasome signaling pathway were measured by western blot. The immune cell subsets were detected by immunohistofluorescence (IHF) and flow cytometry (FCM). The spinal cord fibrosis area, neuron survival, myelin preservation, and functional recovery were assessed. Results Following SCI, CRID3 administration inhibited inflammasome-related ASC and caspase-1, IL-1β, and IL-18 activation, which consequently suppressed M1 microglia, Th1 and Th1Th17 differentiation, and increased M2 microglia and Th2 differentiation. Accordingly, the improved histology and behavior have also been found. Conclusions CRID3 may ameliorate murine SCI by inhibiting inflammasome activation, reducing proinflammatory factor production, restoring immune cell subset balance, and improving local immune microenvironment, and early administration may be a promising therapeutic strategy for SCI.
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Affiliation(s)
- Yu-Qing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Sai-Nan Wang
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Yu-Jiao Shi
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Jing Chen
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Shu-Qin Ding
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China
| | - Jie Tang
- Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China
| | - Lin Shen
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Rui Wang
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Hai Ding
- Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China
| | - Jian-Guo Hu
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China. .,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China.
| | - He-Zuo Lü
- Clinical Laboratory, The First Affiliated Hospital of Bengbu Medical College, 233004, Bengbu, Anhui, People's Republic of China. .,Anhui Key Laboratory of Tissue Transplantation, The First Affiliated Hospital of Bengbu Medical College, 287 Chang Huai Road, Bengbu, 233004, Anhui, People's Republic of China. .,Department of Immunology, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China. .,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, 233030, Bengbu, Anhui, People's Republic of China.
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Cornelius DC, Travis OK, Tramel RW, Borges-Rodriguez M, Baik CH, Greer M, Giachelli CA, Tardo GA, Williams JM. NLRP3 inflammasome inhibition attenuates sepsis-induced platelet activation and prevents multi-organ injury in cecal-ligation puncture. PLoS One 2020; 15:e0234039. [PMID: 32555710 PMCID: PMC7299389 DOI: 10.1371/journal.pone.0234039] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/06/2020] [Indexed: 12/27/2022] Open
Abstract
Sepsis is characterized by organ dysfunction due to a dysregulated immune response to infection. Currently, no effective treatment for sepsis exists. Platelets are recognized as mediators of the immune response and may be a potential therapeutic target for the treatment of sepsis. We previously demonstrated that NLRP3 inflammasome activation in sepsis-induced activated platelets was associated with multi-organ injury in the cecal-ligation puncture (CLP) rat model of sepsis. In this study, we tested the hypothesis that inhibition of NLRP3 would inhibit platelet activation and attenuate multi-organ injury in the CLP rat. CLP (n = 10) or Sham (n = 10) surgery were performed in male and female Sprague-Dawley rats. A subset of CLP rats were treated with MCC950 (50mg/kg/d), a specific NLRP3 inhibitor (CLP+MCC950, n = 10). At 72 hrs. post-CLP, blood and organs were harvested for analysis of platelet activation, NLRP3 activation, inflammation and end organ damage. Platelet activation increased from 8±0.8% in Sham to 16±1% in CLP, and was reduced to 9±1% in CLP+M rats (p<0.05). NLRP3 activation was also increased in platelets of CLP vs Sham. NLRP3 expression was unchanged in kidney and lung after CLP, but Caspase 1 expression and IL-1β were increased. MCC950 treatment attenuated NLRP3 activation in platelets. Plasma, kidney, and lung levels of NLRP3 inflammasome associated cytokines, IL-1ß and IL-18, were significantly increased in CLP compared to Sham rats. Inhibition of NLRP3 normalized cytokine levels. Glomerular injury, pulmonary edema, and endothelial dysfunction markers were increased in CLP rats vs Sham. MCC950 treatment significantly decreased renal and pulmonary injury and endothelial dysfunction in CLP+M. Our results demonstrate a role for NLRP3 in contributing to platelet activation and multi-organ injury in sepsis.
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Affiliation(s)
- Denise C. Cornelius
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- * E-mail:
| | - Olivia K. Travis
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Robert W. Tramel
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Marivee Borges-Rodriguez
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Cedar H. Baik
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Mallory Greer
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Chelsea A. Giachelli
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Geilda A. Tardo
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
| | - Jan M. Williams
- Department of Pharmacology & Toxicology, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
- Cardiovascular-Renal Research Center, University of Mississippi Medical Center, Jackson, Mississippi, United States of America
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