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Zheng XJ, Chen Y, Yao L, Li XL, Sun D, Li YQ. Identification of new hub- ferroptosis-related genes in Lupus Nephritis. Autoimmunity 2024; 57:2319204. [PMID: 38409788 DOI: 10.1080/08916934.2024.2319204] [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: 10/26/2023] [Accepted: 02/11/2024] [Indexed: 02/28/2024]
Abstract
Background: Lupus Nephritis (LN) is the primary causation of kidney injury in systemic lupus erythematosus (SLE). Ferroptosis is a programmed cell death. Therefore, understanding the crosstalk between LN and ferroptosis is still a significant challenge. Methods: We obtained the expression profile of LN kidney biopsy samples from the Gene Expression Omnibus database and utilised the R-project software to identify differentially expressed genes (DEGs). Then, we conducted a functional correlation analysis. Ferroptosis-related genes (FRGs) and differentially expressed genes (DEGs) crossover to select FRGs with LN. Afterwards, we used CIBERSORT to assess the infiltration of immune cells in both LN tissues and healthy control samples. Finally, we performed immunohistochemistry on LN human renal tissue. Results: 10619 DEGs screened from the LN biopsy tissue were identified. 22 hub-ferroptosis-related genes with LN (FRGs-LN) were screened out. The CIBERSORT findings revealed that there were significant statistical differences in immune cells between healthy control samples and LN tissues. Immunohistochemistry further demonstrated a significant difference in HRAS, TFRC, ATM, and SRC expression in renal tissue between normal and control groups. Conclusion: We developed a signature that allowed us to identify 22 new biomarkers associated with FRGs-LN. These findings suggest new insights into the pathology and therapeutic potential of LN ferroptosis inhibitors and iron chelators.
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Affiliation(s)
- Xiao-Jie Zheng
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Ying Chen
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Li Yao
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiao-Li Li
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Da Sun
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yan-Qiu Li
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang, China
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2
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Al-Aqtash R, Collier DM. Ionotropic purinergic receptor 7 (P2X7) channel structure and pharmacology provides insight regarding non-nucleotide agonism. Channels (Austin) 2024; 18:2355150. [PMID: 38762911 PMCID: PMC11110710 DOI: 10.1080/19336950.2024.2355150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 05/10/2024] [Indexed: 05/21/2024] Open
Abstract
P2X7 is a member of the Ionotropic Purinergic Receptor (P2X) family. The P2X family of receptors is composed of seven (P2X1-7), ligand-gated, nonselective cation channels. Changes in P2X expression have been reported in multiple disease models. P2Xs have large complex extracellular domains that function as receptors for a variety of ligands, including endogenous and synthetic agonists and antagonists. ATP is the canonical agonist. ATP affinity ranges from nanomolar to micromolar for most P2XRs, but P2X7 has uniquely poor ATP affinity. In many physiological settings, it may be difficult to achieve the millimolar extracellular ATP concentrations needed for P2X7 channel activation; however, channel function is implicated in pain sensation, immune cell function, cardiovascular disease, cancer, and osteoporosis. Multiple high-resolution P2X7 structures have been solved in apo-, ATP-, and antagonist-bound states. P2X7 structural data reveal distinct allosteric and orthosteric antagonist-binding sites. Both allosteric and orthosteric P2X7 antagonists are well documented to inhibit ATP-evoked channel current. However, a growing body of evidence supports P2X7 activation by non-nucleotide agonists, including extracellular histone proteins and human cathelicidin-derived peptides (LL-37). Interestingly, P2X7 non-nucleotide agonism is not inhibited by allosteric antagonists, but is inhibited by orthosteric antagonists. Herein, we review P2X7 function with a focus on the efficacy of available pharmacology on P2X7 channel current activation by non-nucleotide agonists in effort to understand agonist/antagonist efficacy, and consider the impact of these data on the current understanding of P2X7 in physiology and disease given these limitations of P2X7-selective antagonists and incomplete knockout mouse models.
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Affiliation(s)
- Rua’a Al-Aqtash
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Daniel M. Collier
- Department of Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, USA
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3
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Castellanos-Molina A, Bretheau F, Boisvert A, Bélanger D, Lacroix S. Constitutive DAMPs in CNS injury: From preclinical insights to clinical perspectives. Brain Behav Immun 2024; 122:583-595. [PMID: 39222725 DOI: 10.1016/j.bbi.2024.07.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/28/2024] [Accepted: 07/04/2024] [Indexed: 09/04/2024] Open
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous molecules released in tissues upon cellular damage and necrosis, acting to initiate sterile inflammation. Constitutive DAMPs (cDAMPs) have the particularity to be present within the intracellular compartments of healthy cells, where they exert diverse functions such as regulation of gene expression and cellular homeostasis. However, after injury to the central nervous system (CNS), cDAMPs are rapidly released by stressed, damaged or dying neuronal, glial and endothelial cells, and can trigger inflammation without undergoing structural modifications. Several cDAMPs have been described in the injured CNS, such as interleukin (IL)-1α, IL-33, nucleotides (e.g. ATP), and high-mobility group box protein 1. Once in the extracellular milieu, these molecules are recognized by the remaining surviving cells through specific DAMP-sensing receptors, thereby inducing a cascade of molecular events leading to the production and release of proinflammatory cytokines and chemokines, as well as cell adhesion molecules. The ensuing immune response is necessary to eliminate cellular debris caused by the injury, allowing for damage containment. However, seeing as some molecules associated with the inflammatory response are toxic to surviving resident CNS cells, secondary damage occurs, aggravating injury and exacerbating neurological and behavioral deficits. Thus, a better understanding of these cDAMPs, as well as their receptors and downstream signaling pathways, could lead to identification of novel therapeutic targets for treating CNS injuries such as SCI, TBI, and stroke. In this review, we summarize the recent literature on cDAMPs, their specific functions, and the therapeutic potential of interfering with cDAMPs or their signaling pathways.
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Affiliation(s)
- Adrian Castellanos-Molina
- Axe Neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, QC G1V 4G2, Canada
| | - Floriane Bretheau
- Axe Neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, QC G1V 4G2, Canada
| | - Ana Boisvert
- Axe Neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, QC G1V 4G2, Canada
| | - Dominic Bélanger
- Axe Neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, QC G1V 4G2, Canada
| | - Steve Lacroix
- Axe Neurosciences du Centre de recherche du Centre hospitalier universitaire (CHU) de Québec-Université Laval et Département de médecine moléculaire de l'Université Laval, Québec, QC G1V 4G2, Canada.
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4
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Zhang J, Chen J, Lin K. Immunogenic cell death-based oncolytic virus therapy: A sharp sword of tumor immunotherapy. Eur J Pharmacol 2024; 981:176913. [PMID: 39154830 DOI: 10.1016/j.ejphar.2024.176913] [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: 05/28/2024] [Revised: 07/30/2024] [Accepted: 08/15/2024] [Indexed: 08/20/2024]
Abstract
Tumor immunotherapy, especially immune checkpoint inhibitors (ICIs), has been applied in clinical practice, but low response to immune therapies remains a thorny issue. Oncolytic viruses (OVs) are considered promising for cancer treatment because they can selectively target and destroy tumor cells followed by spreading to nearby tumor tissues for a new round of infection. Immunogenic cell death (ICD), which is the major mechanism of OVs' anticancer effects, is induced by endoplasmic reticulum stress and reactive oxygen species overload after virus infection. Subsequent release of specific damage-associated molecular patterns (DAMPs) from different types of tumor cells can transform the tumor microenvironment from "cold" to "hot". In this paper, we broadly define ICD as those types of cell death that is immunogenic, and describe their signaling pathways respectively. Focusing on ICD, we also elucidate the advantages and disadvantages of recent combination therapies and their future prospects.
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Affiliation(s)
- Jingyu Zhang
- The First Clinical College of Wenzhou Medical University, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jiahe Chen
- The First Clinical College of Wenzhou Medical University, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kezhi Lin
- Wenzhou Key Laboratory of Cancer-related Pathogens and Immunity, Experiential Center of Basic Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China.
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5
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Manoharan V, Adegbayi OO, Maynard JP. P2 purinergic receptor expression and function in tumor-related immune cells. Purinergic Signal 2024:10.1007/s11302-024-10054-7. [PMID: 39387963 DOI: 10.1007/s11302-024-10054-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 09/27/2024] [Indexed: 10/12/2024] Open
Abstract
P2 purinergic receptor expression is dysregulated in multiple cancer subtypes and is associated with worse outcomes. Studies identify roles for P2 purinergic receptors in tumor cells that drive disease aggressiveness. There is also sufficient evidence that P2 purinergic receptor expression within the tumor microenvironment (TME) is critical for disease initiation and progression. Immune cells constitute a significant component of the TME and display both tumorigenic and anti-tumorigenic potential. Studies pre-dating the investigation of P2 purinergic receptors in cancer identify P2 receptor expression on multiple immune cells including macrophages, neutrophils, T-cells, and dendritic cells; all of which are implicated in tumor initiation, tumor promotion, or response to treatment. Herein, we discuss P2 purinergic receptor expression and function in tumor-related immune cells. We provide a rationale for further investigations of P2 purinergic receptors within the TME to better define the mechanistic pathways of inflammation-mediate tumorigenesis and explore P2 purinergic receptors as potential targets for novel immunotherapeutic approaches.
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Affiliation(s)
- Vahinipriya Manoharan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Oluwafemi O Adegbayi
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Janielle P Maynard
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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6
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Song S, Li F, Zhao B, Zhou M, Wang X. Ultraviolet Light Causes Skin Cell Senescence: From Mechanism to Prevention Principle. Adv Biol (Weinh) 2024:e2400090. [PMID: 39364703 DOI: 10.1002/adbi.202400090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 08/23/2024] [Indexed: 10/05/2024]
Abstract
The skin is an effective protective barrier that significantly protects the body from damage caused by external environmental factors. Furthermore, skin condition significantly affects external beauty. In today's era, which is of material and spiritual prosperity, there is growing attention on skincare and wellness. Ultraviolet radiation is one of the most common external factors that lead to conditions like sunburn, skin cancer, and skin aging. In this review, several mechanisms of UV-induced skin cell senescence are discussed, including DNA damage, oxidative stress, inflammatory response, and mitochondrial dysfunction, which have their own characteristics and mutual effects. As an illustration, mitochondrial dysfunction triggers electron evasion and the generation of more reactive oxygen species, leading to oxidative stress and the activation of the NLRP3 inflammasome, which in turn causes mitochondrial DNA (mt DNA) damage. Based on the current mechanism, suitable prevention and treatment strategies are proposed from sunscreen, dietary, and experimental medications respectively, aimed at slowing down skin cell aging and providing protection from ultraviolet radiation. The effects of ultraviolet rays on skin is summarized, offering insights and directions for future studies on mechanism of skin cell senescence, with an anticipation of discovering more effective prevention and cure methods.
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Affiliation(s)
- Shujia Song
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Fuxing Li
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Bingxiang Zhao
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Min Zhou
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
| | - Xiaobo Wang
- School of Basic Medicine, Dali University, Dali, Yunnan, 671000, China
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7
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de Carvalho Braga G, Francisco GR, Bagatini MD. Current treatment of Psoriasis triggered by Cytokine Storm and future immunomodulation strategies. J Mol Med (Berl) 2024; 102:1187-1198. [PMID: 39212718 DOI: 10.1007/s00109-024-02481-1] [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: 03/16/2024] [Revised: 07/14/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
Psoriasis is a chronic condition caused by an inflammation mediated mainly by cytokines and T cells. In COVID-19, the same type of imbalance is common, generating the Cytokine Storm and promoting a worsening in the skin conditions of patients with autoimmune disorders, such as Psoriasis. In this context, one of the main mediators of immune responses presented by SARS-CoV-2 infected patients is the Purinergic System. This immunological resource is capable of stimulating the hyperinflammatory state presented by infected individuals, mainly by the activity of the P2X7 receptor, culminating in the Cytokine Storm and consequently in the Psoriasis crisis. Currently, different drugs are used for patients with Psoriasis, such as immunosuppressants and small molecules; however, the safety of these drugs in infected patients has not been analyzed yet. In this context, studies are being developed to evaluate the possible administration of these traditional drugs to COVID-19 patients with Psoriasis crisis. Along with that, researchers must evaluate the potential of administrating P2X7 antagonists to these patients as well, improving both the systemic and the dermatological prognostics of patients, by reducing the Cytokine Storm and its general effects, but also avoiding the provocation of Psoriasis crisis.
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8
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Yan X, Yan Y, Liu J, Jing Y, Hao P, Chen X, Li X. Necrostatin-1 protects corneal epithelial cells by inhibiting the RIPK1/RIPK3/MLKL cascade in a benzalkonium chloride-induced model of necroptosis. Exp Eye Res 2024; 247:110030. [PMID: 39127236 DOI: 10.1016/j.exer.2024.110030] [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: 04/26/2024] [Revised: 07/13/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
PURPOSE Benzalkonium chloride (BAC) is commonly used as a preservative in ophthalmic medications, despite its potential to induce chemical injury. Extensive research has demonstrated that BAC can lead to adverse effects, including injuries to the ocular surface. Our study aimed to elucidate the underlying mechanism of necroptosis induced by BAC. METHODS Human corneal epithelial (HCE) cells and mouse corneas were subjected to chemical injury, and the necrostatin-1 (Nec1) group was compared to the dimethylsulfoxide (DMSO) group. The extent of damage to HCE cells was assessed using CCK-8 and flow cytometry. Hematoxylin and eosin staining, as well as fluorescein sodium staining, were used to detect and characterize corneal injury. The activation of inflammatory cytokines and necroptosis-related proteins and genes was evaluated using Western blotting, immunofluorescence staining, and quantitative RT‒PCR. RESULTS In our study, the induction of necroptosis by a hypertonic solution was not observed. However, necroptosis was observed in HCE cells exposed to NaOH and BAC, which activated the receptor-interacting protein kinase 1 (RIPK1) - receptor-interacting protein kinase 3 (RIPK3) - mixed lineage kinase domain-like protein (MLKL) signaling pathway. In mouse corneal tissues, BAC could induce necroptosis and inflammation. The administration of Nec1 mitigated the inflammatory response and ocular surface damage caused by BAC-induced necroptosis in our experimental models. Furthermore, our in vivo experiments revealed that the severity of necroptosis was greater in the 3-day group than in the 7-day group. CONCLUSIONS Necroptosis plays a role in the pathological development of ocular surface injury caused by exposure to BAC. Furthermore, our study demonstrated that the administration of Nec1 could mitigate the pathological effects of necroptosis induced by BAC in clinical settings.
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MESH Headings
- Receptor-Interacting Protein Serine-Threonine Kinases/metabolism
- Necroptosis/drug effects
- Animals
- Mice
- Epithelium, Corneal/drug effects
- Epithelium, Corneal/pathology
- Epithelium, Corneal/metabolism
- Indoles/pharmacology
- Benzalkonium Compounds/toxicity
- Benzalkonium Compounds/pharmacology
- Imidazoles/pharmacology
- Protein Kinases/metabolism
- Humans
- Disease Models, Animal
- Mice, Inbred C57BL
- Blotting, Western
- Cells, Cultured
- Flow Cytometry
- Signal Transduction/drug effects
- Eye Burns/chemically induced
- Eye Burns/pathology
- Male
- Burns, Chemical/pathology
- Burns, Chemical/metabolism
- Burns, Chemical/drug therapy
- Preservatives, Pharmaceutical/toxicity
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Affiliation(s)
- Xinlin Yan
- School of Medicine, Nankai University, Tianjin, 300071, China; Nankai University Affiliated Eye Hospital, Tianjin, 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China
| | - Yarong Yan
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China; Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, 300020, China
| | - Jinghua Liu
- School of Medicine, Nankai University, Tianjin, 300071, China; Nankai University Affiliated Eye Hospital, Tianjin, 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China
| | - Yapeng Jing
- School of Medicine, Nankai University, Tianjin, 300071, China; Nankai University Affiliated Eye Hospital, Tianjin, 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China
| | - Peng Hao
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China
| | - Xi Chen
- Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China
| | - Xuan Li
- School of Medicine, Nankai University, Tianjin, 300071, China; Nankai University Affiliated Eye Hospital, Tianjin, 300020, China; Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin Eye Hospital, Tianjin, 300020, China; Clinical College of Ophthalmology, Tianjin Medical University, Tianjin, 300020, China.
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9
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Huang Y, Jiang W, Zhou R. DAMP sensing and sterile inflammation: intracellular, intercellular and inter-organ pathways. Nat Rev Immunol 2024; 24:703-719. [PMID: 38684933 DOI: 10.1038/s41577-024-01027-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2024] [Indexed: 05/02/2024]
Abstract
Damage-associated molecular patterns (DAMPs) are endogenous molecules that are released from host cells as a result of cell death or damage. The release of DAMPs in tissues is associated with loss of tissue homeostasis. Sensing of DAMPs by innate immune receptors triggers inflammation, which can be beneficial in initiating the processes that restore tissue homeostasis but can also drive inflammatory diseases. In recent years, the sensing of intracellular DAMPs has received extensive attention in the field of sterile inflammation. However, emerging studies have shown that DAMPs that originate from neighbouring cells, and even from distal tissues or organs, also mediate sterile inflammatory responses. This multi-level sensing of DAMPs is crucial for intercellular, trans-tissue and trans-organ communication. Here, we summarize how DAMP-sensing receptors detect DAMPs from intracellular, intercellular or distal tissue and organ sources to mediate sterile inflammation. We also discuss the possibility of targeting DAMPs or their corresponding receptors to treat inflammatory diseases.
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Affiliation(s)
- Yi Huang
- Key Laboratory of Immune Response and Immunotherapy, Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China
| | - Wei Jiang
- Key Laboratory of Immune Response and Immunotherapy, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
| | - Rongbin Zhou
- Key Laboratory of Immune Response and Immunotherapy, Institute of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, China.
- Key Laboratory of Immune Response and Immunotherapy, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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Mohamed DH, Said RS, Kassem DH, Gad AM, El-Demerdash E, Mantawy EM. Hesperidin attenuates radiation-induced ovarian failure in rats: Emphasis on TLR-4/NF-ĸB signaling pathway. Toxicol Appl Pharmacol 2024; 492:117111. [PMID: 39326792 DOI: 10.1016/j.taap.2024.117111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2024] [Revised: 09/09/2024] [Accepted: 09/22/2024] [Indexed: 09/28/2024]
Abstract
Young women suffering from premature ovarian failure after radiotherapy carry a huge burden in the field of cancer therapy including reproductive loss, emotional stress, and physical troubles that reduce their long-term quality of life. Hesperidin (HSP) exhibited antioxidant, anti-inflammatory, and anti-apoptotic properties. HSP enhanced in vitro follicular maturation and preserved in vivo ovarian stockpile. In this research, the role of HSP in radiation-induced POF in rats was investigated besides ascertaining its underlying mechanisms. Female Sprague-Dawley rats were arbitrarily allocated into four groups: control-group, ϒ-irradiated-group (3.2 Gy once on the 7th day), HSP-group (100 mg/kg, orally for 10 days), and HSP/ϒ-irradiated-group (ϒ-radiation was applied one hour after HSP). At the end of experiment, the whole ovaries were collected for histological and biochemical analyses. Administration of HSP preserved the ovarian histoarchitecture and follicular stock, retained ovarian weight, and conserved serum estradiol and AMH levels following radiation exposure. HSP ameliorated the ovarian oxidative damage mediated by radiation through augmenting the activities of glutathione peroxidase, glutathione reductase, and catalase antioxidant enzymes. HSP exhibited remarkable anti-inflammatory activity by downregulating the expression of ovarian TLR-4, NF-ĸB, and TNF-α. Moreover, HSP suppressed the apoptotic machinery triggered by radiation by reducing p53 and Bax while increasing Bcl-2 mRNA expressions alongside diminishing caspase-3 expression. Additionally, HSP regulated estrous cycle disorder of irradiated rats and improved their reproductive capacity reflected by enhancing pregnancy outcomes. Therefore, HSP represents an appealing candidate as an adjunct remedy for female cancer patients during radiotherapy protocols owing to its antioxidant, anti-inflammatory, anti-apoptotic, and hormone-regulatory effects.
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Affiliation(s)
- Doaa H Mohamed
- Central Administration of Drug Control, Egyptian Drug Authority, EDA, Formerly NODCAR, Giza, Egypt
| | - Riham S Said
- Department of Drug Radiation Research, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt.
| | - Dina H Kassem
- Department of Biochemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Amany M Gad
- Department of Pharmacology, Egyptian Drug Authority, EDA, Formerly NODCAR, Giza, Egypt; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Sinai University, Kantara Branch, Ismailia, Egypt
| | - Ebtehal El-Demerdash
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt; Preclinical and Translational Research Center, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Eman M Mantawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt; Preclinical and Translational Research Center, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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11
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Li C, Gao P, Zhuang F, Wang T, Wang Z, Wu G, Zhou Z, Xie H, Xie D, Zhao D, Wu J, Chen C. Inhibition of ALOX12-12-HETE Alleviates Lung Ischemia-Reperfusion Injury by Reducing Endothelial Ferroptosis-Mediated Neutrophil Extracellular Trap Formation. RESEARCH (WASHINGTON, D.C.) 2024; 7:0473. [PMID: 39268501 PMCID: PMC11391482 DOI: 10.34133/research.0473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 08/12/2024] [Accepted: 08/20/2024] [Indexed: 09/15/2024]
Abstract
Lung ischemia-reperfusion injury (IRI) stands as the primary culprit behind primary graft dysfunction (PGD) after lung transplantation, yet viable therapeutic options are lacking. In the present study, we used a murine hilar clamp (1 h) and reperfusion (3 h) model to study IRI. The left lung tissues were harvested for metabolomics, transcriptomics, and single-cell RNA sequencing. Metabolomics of plasma from human lung transplantation recipients was also performed. Lung histology, pulmonary function, pulmonary edema, and survival analysis were measured in mice. Integrative analysis of metabolomics and transcriptomics revealed a marked up-regulation of arachidonate 12-lipoxygenase (ALOX12) and its metabolite 12-hydroxyeicosatetraenoic acid (12-HETE), which played a pivotal role in promoting ferroptosis and neutrophil extracellular trap (NET) formation during lung IRI. Additionally, single-cell RNA sequencing revealed that ferroptosis predominantly occurred in pulmonary endothelial cells. Importantly, Alox12-knockout (KO) mice exhibited a notable decrease in ferroptosis, NET formation, and tissue injury. To investigate the interplay between endothelial ferroptosis and NET formation, a hypoxia/reoxygenation (HR) cell model using 2 human endothelial cell lines was established. By incubating conditioned medium from HR cell model with neutrophils, we found that the liberation of high mobility group box 1 (HMGB1) from endothelial cells undergoing ferroptosis facilitated the formation of NETs by activating the TLR4/MYD88 pathway. Last, the administration of ML355, a targeted inhibitor of Alox12, mitigated lung IRI in both murine hilar clamp/reperfusion and rat left lung transplant models. Collectively, our study indicates ALOX12 as a promising therapeutic strategy for lung IRI.
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Affiliation(s)
- Chongwu Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Peigen Gao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Fenghui Zhuang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Tao Wang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Zeyu Wang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Guodong Wu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Ziheng Zhou
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Huikang Xie
- Department of Pathology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Dong Xie
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Deping Zhao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Junqi Wu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
| | - Chang Chen
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
- Shanghai Engineering Research Center of Lung Transplantation, Shanghai, China
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12
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Shi Y, Wu Z, Liu S, Zuo D, Niu Y, Qiu Y, Qiao L, He W, Qiu J, Yuan Y, Wang G, Li B. Targeting PRMT3 impairs methylation and oligomerization of HSP60 to boost anti-tumor immunity by activating cGAS/STING signaling. Nat Commun 2024; 15:7930. [PMID: 39256398 PMCID: PMC11387718 DOI: 10.1038/s41467-024-52170-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 08/28/2024] [Indexed: 09/12/2024] Open
Abstract
Immune checkpoint blockade (ICB) has emerged as a promising therapeutic option for hepatocellular carcinoma (HCC), but resistance to ICB occurs and patient responses vary. Here, we uncover protein arginine methyltransferase 3 (PRMT3) as a driver for immunotherapy resistance in HCC. We show that PRMT3 expression is induced by ICB-activated T cells via an interferon-gamma (IFNγ)-STAT1 signaling pathway, and higher PRMT3 expression levels correlate with reduced numbers of tumor-infiltrating CD8+ T cells and poorer response to ICB. Genetic depletion or pharmacological inhibition of PRMT3 elicits an influx of T cells into tumors and reduces tumor size in HCC mouse models. Mechanistically, PRMT3 methylates HSP60 at R446 to induce HSP60 oligomerization and maintain mitochondrial homeostasis. Targeting PRMT3-dependent HSP60 methylation disrupts mitochondrial integrity and increases mitochondrial DNA (mtDNA) leakage, which results in cGAS/STING-mediated anti-tumor immunity. Lastly, blocking PRMT3 functions synergize with PD-1 blockade in HCC mouse models. Our study thus identifies PRMT3 as a potential biomarker and therapeutic target to overcome immunotherapy resistance in HCC.
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Affiliation(s)
- Yunxing Shi
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Colorectal Surgery, Guangdong Institute of Gastroenterology, and Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zongfeng Wu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Shaoru Liu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Dinglan Zuo
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yi Niu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yuxiong Qiu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Liang Qiao
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Wei He
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jiliang Qiu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yunfei Yuan
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China.
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China.
| | - Guocan Wang
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Binkui Li
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China.
- Department of Liver Surgery, Sun Yat-Sen University Cancer Center, Guangzhou, China.
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13
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Xu L, Guo W, Hao H, Yuan J, Bai B. Computational recognition of regulator genes and signature for ferroptosis with implications on immunological properties and clinical management of atopic dermatitis. Front Immunol 2024; 15:1412382. [PMID: 39308857 PMCID: PMC11412816 DOI: 10.3389/fimmu.2024.1412382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 08/21/2024] [Indexed: 09/25/2024] Open
Abstract
Background Atopic dermatitis (AD) is a common chronic dermatitis of autoimmune origin that considerably affects the quality of life of patients. Ferroptosis, a newly regulated form of cell death, is essential for inflammation-related damage-associated molecular patterns (DAMPs). In this study, we aimed to identify ferroptosis regulators relevant to AD pathogenesis and reveal the mechanisms by which ferroptosis regulates the pathogenesis of AD. Methods We analyzed the GEO AD cohorts (GSE16161, GSE32924, GSE107361, and GSE120721), identifying AD-related differentially expressed genes (DEGs) using edgeR. Co-expression and STRING database analyses were used to elucidate the interactions between DEGs and ferroptosis markers. Through functional enrichment analysis, we defined potential biological functions within the protein-protein interaction (PPI) network and developed FerrSig using LASSO regression. The utility of FerrSig in guiding the clinical management of AD was evaluated using the GSE32473 cohort. Subsequently, our in silico findings were confirmed, and mechanistic insights were expanded through both in vitro and in vivo studies, validating the relevance of FerrSig. Results In the GEO AD cohort, 278 DEGs were identified, including seven ferroptosis signature genes. Co-expression analysis and STRING database review revealed a 63-node PPI network linked to cell cycle and pro-inflammatory pathways. Four ferroptosis genes (ALOXE3, FABP4, MAP3K14, and EGR1) were selected to create FerrSig, which was significantly downregulated in samples collected from patients with AD. In addition, immune-related signaling pathways were significantly differentially enriched between the stratifications of samples collected from patients with AD with high and low ferritin levels, whereas in the GSE32473 cohort, FerrSig was significantly increased in cohorts effectively treated with pimecrolimus or betamethasone. Finally, in vitro and in vivo models showed a notable FerrSig decrease in patients with AD versus healthy control. Treatment with betamethasone and tacrolimus restored FerrSig, and the magnitude of the increase in FerrSig was higher in samples collected from patients with AD with better efficacy assessments. In addition, FerrSig was significantly positively correlated with the ferroptosis inhibitors GPX4 and SLC7A11 and negatively correlated with reactive oxygen species (ROS) levels and p-STAT3/STAT3. This implies that the FerrSig signature genes may regulate ferroptosis through the JAK/STAT3 signaling pathway. Conclusion Our study further explored the pathogenesis of AD, and FerrSig could serve as a potential biomarker for identifying AD morbidity risks and determining treatment efficacy.
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Affiliation(s)
- Lei Xu
- Department of Dermatology, The Second Affiliated Hospital of Harbin Medical
University, Harbin, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, State Key
Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Harbin, China
| | - Wenjuan Guo
- Department of Dermatology, The Second Affiliated Hospital of Harbin Medical
University, Harbin, China
| | - Huirong Hao
- Department of Dermatology, The Second Affiliated Hospital of Harbin Medical
University, Harbin, China
| | - Jinping Yuan
- Department of Dermatology, The Second Affiliated Hospital of Harbin Medical
University, Harbin, China
| | - Bingxue Bai
- Department of Dermatology, The Second Affiliated Hospital of Harbin Medical
University, Harbin, China
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14
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Sha HX, Liu YB, Qiu YL, Zhong WJ, Yang NSY, Zhang CY, Duan JX, Xiong JB, Guan CX, Zhou Y. Neutrophil extracellular traps trigger alveolar epithelial cell necroptosis through the cGAS-STING pathway during acute lung injury in mice. Int J Biol Sci 2024; 20:4713-4730. [PMID: 39309425 PMCID: PMC11414388 DOI: 10.7150/ijbs.99456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 08/25/2024] [Indexed: 09/25/2024] Open
Abstract
Extensive loss of alveolar epithelial cells (AECs) undergoing necroptosis is a crucial mechanism of acute lung injury (ALI), but its triggering mechanism needs to be thoroughly investigated. Neutrophil extracellular traps (NETs) play a significant role in ALI. However, the effect of NETs on AECs' death has not been clarified. Our study found that intratracheal instillation of NETs disrupted lung tissue structure, suggesting that NETs could induce ALI in mice. Moreover, we observed that NETs could trigger necroptosis of AECs in vivo and in vitro. The phosphorylation levels of RIPK3 and MLKL were increased in MLE12 cells after NETs treatment (P < 0.05). Mechanistically, NETs taken up by AECs through endocytosis activated the cGAS-STING pathway and triggered AECs necroptosis. The expression of cGAS, STING, TBK1 and IRF3 were increased in MLE12 cells treated with NETs (P < 0.05). Furthermore, the cGAS inhibitor RU.521 inhibited NETs-triggered AECs necroptosis and alleviated the pulmonary damage induced by NETs in mice. In conclusion, our study demonstrates that NETs taken up by AECs via endocytosis can activate the cGAS-STING pathway and trigger AECs necroptosis to promote ALI in mice. Our findings indicate that targeting the NETs/cGAS-STING/necroptosis pathway in AECs is an effective strategy for treating ALI.
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Affiliation(s)
- Han-Xi Sha
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Yu-Biao Liu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Yan-Ling Qiu
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Wen-Jing Zhong
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Nan-Shi-Yu Yang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Chen-Yu Zhang
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Jia-Xi Duan
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Jian-Bing Xiong
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Cha-Xiang Guan
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
| | - Yong Zhou
- Department of Physiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410078, China
- Key Laboratory of General University of Hunan Province, Basic and Clinic Research in Major Respiratory Disease, Changsha, Hunan 410078, China
- National Experimental Teaching Demonstration Center for Medical Function, Changsha, Hunan 410013, China
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15
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Lee S, Ko MJ, Avritscher R, Lewandowski RJ, Kim DH. Cryo-Nanocatalyst Enhances Therapeutic Efficacy of Cryo-Immunotherapy through Necroptosis and Local Delivery of Programmed Death-Ligand 1 Inhibitors. ACS NANO 2024; 18:24269-24282. [PMID: 39175187 DOI: 10.1021/acsnano.4c05809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Combining cryoablation and immunotherapy presents a promising approach to revert immunosuppressive responses to solid tumors. However, challenges such as postablated residual tumors and insufficient immune activity contribute to recurrence after cryo-immunotherapy. Herein, we investigated metallic supra-structured cryo-nanocatalyst (MSCN), which features numerous ice nucleation sites and interspace loading of therapeutic agents. MSCN elevates the freezing point and enhances ice nucleation, facilitating effective ice formation during cryotreatment. MSCN-loaded tumor cells showed a 2-fold increase in cryo-cytotoxicity and undergo osmotic-related cell damage, primarily necroptosis rather than other regulated cell death mechanisms. In prostate cancer models, RNA sequencing reveals that MSCN-cryoablation promoted antitumor inflammatory pathways, including necroptosis, compared to cryoablation alone. Additionally, following programmed death-ligand 1 (PD-L1) upregulation postcryoablation, synergistic effects with PD-L1 blockade were confirmed. Given the interspace of MSCN for aPD-L1 loading, we compared the intratumoral delivery of PD-L1 blockade against systemic injection. Enhanced necrosis and necroptosis from MSCN-cryoablation and PD-L1 blockade effectively eradicated tumors and triggered antitumor and memory immune responses locally and systemically. Lastly, a spatial landscape of tumor-infiltrating immune cells was analyzed to gain insight into heterogeneous tumor responses, leading to the limitations of conventional focal ablation techniques. Our findings highlight the potential of advanced cryo-immunotherapy using cryo-nanocatalysis to promote ice formation and necroptosis, stimulating antitumor immunogenic responses.
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Affiliation(s)
- Sanghee Lee
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago 60611, United States
| | - Min Jun Ko
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago 60611, United States
| | - Rony Avritscher
- Department of Interventional Radiology, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Robert J Lewandowski
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago 60611, United States
| | - Dong-Hyun Kim
- Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago 60611, United States
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, Illinois 60611, United States
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Biomedical Engineering, University of Illinois, Chicago, Illinois 60607, United States
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16
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Bharadwaj D, Mandal M. Tumor microenvironment: A playground for cells from multiple diverse origins. Biochim Biophys Acta Rev Cancer 2024; 1879:189158. [PMID: 39032537 DOI: 10.1016/j.bbcan.2024.189158] [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: 01/03/2024] [Revised: 07/13/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Tumor microenvironment is formed by various cellular and non-cellular components which interact with one another and form a complex network of interactions. Some of these cellular components also attain a secretory phenotype and release growth factors, cytokines, chemokines etc. in the surroundings which are capable of inducing even greater number of signalling networks. All these interactions play a decisive role in determining the course of tumorigenesis. The treatment strategies against cancer also exert their impact on the local microenvironment. Such interactions and anticancer therapies have been found to induce more deleterious outcomes like immunosuppression and chemoresistance in the process of tumor progression. Hence, understanding the tumor microenvironment is crucial for dealing with cancer and chemoresistance. This review is an attempt to develop some understanding about the tumor microenvironment and different factors which modulate it, thereby contributing to tumorigenesis. Along with summarising the major components of tumor microenvironment and various interactions taking place between them, it also throws some light on how the existing and potential therapies exert their impact on these dynamics.
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Affiliation(s)
- Deblina Bharadwaj
- Department of Biotechnology, KIT-Kalaignarkarunanidhi Institute of Technology, Coimbatore, Tamil Nadu, India.
| | - Mahitosh Mandal
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India.
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17
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Malla R, Kumari S, Ganji SP, Srilatha M, Nellipudi HR, Nagaraju GP. Reactive oxygen species of tumor microenvironment: Harnessing for immunogenic cell death. Biochim Biophys Acta Rev Cancer 2024; 1879:189154. [PMID: 39019409 DOI: 10.1016/j.bbcan.2024.189154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 07/07/2024] [Accepted: 07/10/2024] [Indexed: 07/19/2024]
Abstract
The tumor microenvironment (TME) is a dynamic and complex system that undergoes continuous changes in its network architecture, notably affecting redox homeostasis. These alterations collectively shape a diverse ecosystem actively supporting tumor progression by influencing the cellular and molecular components of the TME. Despite the remarkable clinical advancements in cancer immunotherapy, its spectrum of clinical utility is limited by the altered TME and inadequate tumor immunogenicity. Recent studies have revealed that some conventional and targeted therapy strategies can augment the efficacy of immunotherapy even in patients with less immunogenic solid tumors. These strategies provoke immunogenic cell death (ICD) through the ROS-dependent liberation of damage-associated molecular patterns (DAMPs). These DAMPs recognize and bind with Pattern Recognition Receptors (PRRs) on immune cells, activating and maturing defense cells, ultimately leading to a robust antitumor immune response. The present review underscores the pivotal role of redox homeostasis in orchestrating the transition of TME from a cold to a hot phenotype and the ROS-ICD axis in immune response induction. Additionally, it provides up-to-date insights into strategies that leverage ROS generation to induce ICD. The comprehensive analysis aims to develop ROS-based effective cancer immunotherapies for less immunogenic tumors.
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Affiliation(s)
- RamaRao Malla
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, Andhra Pradesh, India
| | - Seema Kumari
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, Andhra Pradesh, India
| | - Swapna Priya Ganji
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, School of Science, GITAM (Deemed to be University), Visakhapatnam-530045, Andhra Pradesh, India
| | - Mundla Srilatha
- Department of Biotechnology, Sri Venkateswara University, Tirupati, Andhra Pradesh 517502, India
| | | | - Ganji Purnachandra Nagaraju
- Department of Hematology and Oncology, Heersink School of Medicine, University of Alabama, Birmingham, AL 35233, USA.
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18
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Wang S, Guo S, Guo J, Du Q, Wu C, Wu Y, Zhang Y. Cell death pathways: molecular mechanisms and therapeutic targets for cancer. MedComm (Beijing) 2024; 5:e693. [PMID: 39239068 PMCID: PMC11374700 DOI: 10.1002/mco2.693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 07/24/2024] [Accepted: 07/28/2024] [Indexed: 09/07/2024] Open
Abstract
Cell death regulation is essential for tissue homeostasis and its dysregulation often underlies cancer development. Understanding the different pathways of cell death can provide novel therapeutic strategies for battling cancer. This review explores several key cell death mechanisms of apoptosis, necroptosis, autophagic cell death, ferroptosis, and pyroptosis. The research gap addressed involves a thorough analysis of how these cell death pathways can be precisely targeted for cancer therapy, considering tumor heterogeneity and adaptation. It delves into genetic and epigenetic factors and signaling cascades like the phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) and mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) pathways, which are critical for the regulation of cell death. Additionally, the interaction of the microenvironment with tumor cells, and particularly the influence of hypoxia, nutrient deprivation, and immune cellular interactions, are explored. Emphasizing therapeutic strategies, this review highlights emerging modulators and inducers such as B cell lymphoma 2 (BCL2) homology domain 3 (BH3) mimetics, tumour necrosis factor-related apoptosis-inducing ligand (TRAIL), chloroquine, and innovative approaches to induce ferroptosis and pyroptosis. This review provides insights into cancer therapy's future direction, focusing on multifaceted approaches to influence cell death pathways and circumvent drug resistance. This examination of evolving strategies underlines the considerable clinical potential and the continuous necessity for in-depth exploration within this scientific domain.
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Affiliation(s)
- Shaohui Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Sa Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Jing Guo
- College of Clinical Medicine Hospital of Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Qinyun Du
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Cen Wu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Yeke Wu
- College of Clinical Medicine Hospital of Chengdu University of Traditional Chinese Medicine Chengdu China
| | - Yi Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine Chengdu University of Traditional Chinese Medicine Chengdu China
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19
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Petruk G, Petrlova J, Samsudin F, Bond PJ, Schmidtchen A. Thrombin-derived C-terminal peptides bind and form aggregates with sulfated glycosaminoglycans. Heliyon 2024; 10:e35703. [PMID: 39229523 PMCID: PMC11369470 DOI: 10.1016/j.heliyon.2024.e35703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 09/05/2024] Open
Abstract
Glycosaminoglycans (GAGs) such as heparin and heparan sulfate (HS) play crucial roles in inflammation and wound healing, serving as regulators of growth factors and pro-inflammatory mediators. In this study, we investigated the influence of heparin/HS on thrombin proteolysis and its interaction with the generated 11 kDa thrombin-derived C-terminal peptides (TCPs). Employing various biochemical and biophysical methods, we demonstrated that 11 kDa TCPs aggregate in the presence of GAGs, including heparin, heparan sulfate, and chondroitin sulfate-B. Circular dichroism analysis demonstrated that 11 kDa TCPs, in the presence of GAGs, adopt a β-sheet structure, a finding supported by thioflavin T1 (ThT) fluorescence measurements and visualization of 11 kDa TCP-heparin complexes using transmission electron microscopy (TEM). Furthermore, our investigations revealed a stronger binding affinity between 11 kDa TCPs and GAGs with higher sulfate group contents. Congruently, in silico simulations showed that interactions between 11 kDa TCPs and heparin/HS are predominantly electrostatic in nature. Collectively, our study suggests that 11 kDa TCPs have the capacity to aggregate in the presence of GAGs, shedding light on their potential roles in inflammation and wound healing.
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Affiliation(s)
- Ganna Petruk
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22241, Lund, Sweden
| | - Jitka Petrlova
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22241, Lund, Sweden
- Department of Biomedical Science, Faculty of Health and Society, Malmö University, SE-205 06, Malmö, Sweden
| | - Firdaus Samsudin
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Republic of Singapore
| | - Peter J. Bond
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore, 138671, Republic of Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, 117543, Republic of Singapore
| | - Artur Schmidtchen
- Division of Dermatology and Venereology, Department of Clinical Sciences, Lund University, 22241, Lund, Sweden
- Dermatology, Skane University Hospital, 22185, Lund, Sweden
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20
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Zhou Z, Mai Y, Zhang G, Wang Y, Sun P, Jing Z, Li Z, Xu Y, Han B, Liu J. Emerging role of immunogenic cell death in cancer immunotherapy: Advancing next-generation CAR-T cell immunotherapy by combination. Cancer Lett 2024; 598:217079. [PMID: 38936505 DOI: 10.1016/j.canlet.2024.217079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/11/2024] [Accepted: 06/18/2024] [Indexed: 06/29/2024]
Abstract
Immunogenic cell death (ICD) is a stress-driven form of regulated cell death (RCD) in which dying tumor cells' specific signaling pathways are activated to release damage-associated molecular patterns (DAMPs), leading to the robust anti-tumor immune response as well as a reversal of the tumor immune microenvironment from "cold" to "hot". Chimeric antigen receptor (CAR)-T cell therapy, as a landmark in anti-tumor immunotherapy, plays a formidable role in hematologic malignancies but falls short in solid tumors. The Gordian knot of CAR-T cells for solid tumors includes but is not limited to, tumor antigen heterogeneity or absence, physical and immune barriers of tumors. The combination of ICD induction therapy and CAR-T cell immunotherapy is expected to promote the intensive use of CAR-T cell in solid tumors. In this review, we summarize the characteristics of ICD, stress-responsive mechanism, and the synergistic effect of various ICD-based therapies with CAR-T cells to effectively improve anti-tumor capacity.
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Affiliation(s)
- Zhaokai Zhou
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Yumiao Mai
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Ge Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Henan Province Key Laboratory of Cardiac Injury and Repair, Henan Province Clinical Research Center for Cardiovascular Diseases, Zhengzhou, Henan, 450052, China
| | - Yingjie Wang
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Pan Sun
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Zhaohe Jing
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Zhengrui Li
- Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yudi Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jian Liu
- Department of Pediatrics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China.
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21
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Chen TY, Chang YC, Yu CY, Sung WW. Targeting the Adenosine A2A Receptor as a Novel Therapeutic Approach for Renal Cell Carcinoma: Mechanisms and Clinical Trial Review. Pharmaceutics 2024; 16:1127. [PMID: 39339165 PMCID: PMC11434806 DOI: 10.3390/pharmaceutics16091127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2024] [Revised: 08/14/2024] [Accepted: 08/23/2024] [Indexed: 09/30/2024] Open
Abstract
Renal cell carcinoma (RCC) accounts for nearly 2% of cancers diagnosed worldwide. For metastatic RCC, targeted therapy is one of the most common treatment methods. It can include approaches that target vascular endothelial growth factor (VEGFR) or rely on immune checkpoint inhibitors or mTOR inhibitors. Adenosine A2A receptor (A2AR) is a type of widely distributed G-protein-coupled receptor (GPCR). Recently, an increasing number of studies suggest that the activation of A2AR can downregulate anti-tumor immune responses and prevent tumor growth. Currently, the data on A2AR antagonists in RCC treatment are still limited. Therefore, in this article, we further investigate the clinical trials investigating A2AR drugs in RCC. We also describe the epidemiology and current treatment of RCC, along with the physiological role of A2AR, and the types of A2AR drugs that are associated with tumor treatment.
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Affiliation(s)
- Ting-Yu Chen
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
| | - Ya-Chuan Chang
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Urology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Chia-Ying Yu
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Urology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Wen-Wei Sung
- School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
- Department of Urology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan
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22
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El-Sadek HM, Elmadbouly AA, Risha BEM. Evaluation of neutrophil activation marker in patients with vitiligo. Ir J Med Sci 2024:10.1007/s11845-024-03777-4. [PMID: 39186193 DOI: 10.1007/s11845-024-03777-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 08/05/2024] [Indexed: 08/27/2024]
Abstract
BACKGROUND Vitiligo is an inflammatory, autoimmune disorder. Its pathogenesis is unclear. A neutrophil activation marker (calprotectin) is a protein complex present in many different types of cells and may be used as an indicator of inflammation. AIMS This study is to assess calprotectin levels in non-segmental vitiligo patients and compare them to the severity of the illness to identify potential associations. METHODS The present inquiry was conducted on thirty non-segmental vitiligo patients and thirty healthy volunteers matched in terms of age and gender. The Vitiligo Area Scoring Index was used to assess the vitiligo severity. Calprotectin levels were measured in serum samples obtained from all participants by Enzyme Linked Immunosorbent Assay. RESULTS Compared to controls, non-segmental vitiligo patients had considerably elevated serum calprotectin levels. Additionally, calprotectin levels were shown to have a significant positive association with disease severity (r = 0.833, P = 0.000). CONCLUSIONS Elevated levels of serum calprotectin in non-segmental vitiligo patients relative to healthy individuals with high sensitivity indicated that it may have a role in the vitiligo pathophysiology and can act as a marker for disease monitoring.
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Affiliation(s)
- Hala M El-Sadek
- Department of Dermatology, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt.
| | - Asmaa A Elmadbouly
- Department of Clinical Pathology, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
| | - Basma E M Risha
- Department of Dermatology, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt
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23
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Zhu L, Yang X, Wu S, Dong R, Yan Y, Lin N, Zhang B, Tan B. Hepatotoxicity of epidermal growth factor receptor - tyrosine kinase inhibitors (EGFR-TKIs). Drug Metab Rev 2024:1-16. [PMID: 39120430 DOI: 10.1080/03602532.2024.2388203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
Drug-induced liver injury (DILI) is one of the most frequently adverse reactions in clinical drug use, usually caused by drugs or herbal compounds. Compared with other populations, cancer patients are more prone to abnormal liver function due to primary or secondary liver malignant tumor, radiation-induced liver injury and other reasons, making potential adverse reactions from liver damage caused by anticancer drugs of particular concernduring clinical treatment process. In recent years, the application of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) has changed the treatment status of a series of solid malignant tumors. Unfortunately, the increasing incidence of hepatotoxicitylimits the clinical application of EGFR-TKIs. The mechanisms of liver injury caused by EGFR-TKIs were complex. Despite more than a decade of research, other than direct damage to hepatocytes caused by inhibition of cellular DNA synthesis and resulting in hepatocyte necrosis, the rest of the specific mechanisms remain unclear, and few effective solutions are available. This review focuses on the clinical feature, incidence rates and the recent advances on the discovery of mechanism of hepatotoxicity in EGFR-TKIs, as well as rechallenge and therapeutic strategies underlying hepatotoxicity of EGFR-TKIs.
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Affiliation(s)
- Lulin Zhu
- Department of Pharmacy, Key Laboratory of Clinical CancerPharmacology andToxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
| | - Xinxin Yang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shanshan Wu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Rong Dong
- Department of Pharmacy, Key Laboratory of Clinical CancerPharmacology andToxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
| | - Youyou Yan
- Department of Pharmacy, Key Laboratory of Clinical CancerPharmacology andToxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
| | - Nengming Lin
- Department of Pharmacy, Key Laboratory of Clinical CancerPharmacology andToxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine of Zhejiang Province, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
| | - Bo Zhang
- Department of Pharmacy, Key Laboratory of Clinical CancerPharmacology andToxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine of Zhejiang Province, Hangzhou, China
- Cancer Center, Zhejiang University, Hangzhou, China
| | - Biqin Tan
- Department of Pharmacy, Key Laboratory of Clinical CancerPharmacology andToxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, China
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
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24
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Chakraborty S, Feng Z, Lee S, Alvarenga OE, Panda A, Bruni R, Khelashvili G, Gupta K, Accardi A. Structure and function of the human apoptotic scramblase Xkr4. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.07.607004. [PMID: 39149361 PMCID: PMC11326236 DOI: 10.1101/2024.08.07.607004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Phosphatidylserine externalization on the surface of dying cells is a key signal for their recognition and clearance by macrophages and is mediated by members of the X-Kell related (Xkr) protein family. Defective Xkr-mediated scrambling impairs clearance, leading to inflammation. It was proposed that activation of the Xkr4 apoptotic scramblase requires caspase cleavage, followed by dimerization and ligand binding. Here, using a combination of biochemical approaches we show that purified monomeric, full-length human Xkr4 (hXkr4) scrambles lipids. CryoEM imaging shows that hXkr4 adopts a novel conformation, where three conserved acidic residues create an electronegative surface embedded in the membrane. Molecular dynamics simulations show this conformation induces membrane thinning, which could promote scrambling. Thinning is ablated or reduced in conditions where scrambling is abolished or reduced. Our work provides insights into the molecular mechanisms of hXkr4 scrambling and suggests the ability to thin membranes might be a general property of active scramblases.
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Affiliation(s)
| | - Zhang Feng
- Department of Anesthesiology, Weill Cornell Medical College
| | - Sangyun Lee
- Department of Anesthesiology, Weill Cornell Medical College
| | - Omar E. Alvarenga
- Physiology, Biophysics and Systems Biology Graduate Program, Weill Cornell Medical College
| | - Aniruddha Panda
- Nanobiology Institute, Yale University, West Haven, Connecticut 06516, United States
- Department of Cell Biology, Yale University School of Medicine, New Haven, Connecticut 06520, United States
| | - Renato Bruni
- Center on Membrane Protein Production and Analysis (COMPPÅ), New York Structural Biology Center, New York, NY 10027, USA
| | | | - Kallol Gupta
- Nanobiology Institute, Yale University, West Haven, Connecticut 06516, United States
- Department of Cell Biology, Yale University School of Medicine, New Haven, Connecticut 06520, United States
| | - Alessio Accardi
- Department of Anesthesiology, Weill Cornell Medical College
- Department of Physiology and Biophysics, Weill Cornell Medical College
- Department of Biochemistry, Weill Cornell Medical College
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25
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Vana F, Szabo Z, Masarik M, Kratochvilova M. The interplay of transition metals in ferroptosis and pyroptosis. Cell Div 2024; 19:24. [PMID: 39097717 PMCID: PMC11297737 DOI: 10.1186/s13008-024-00127-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 07/08/2024] [Indexed: 08/05/2024] Open
Abstract
Cell death is one of the most important mechanisms of maintaining homeostasis in our body. Ferroptosis and pyroptosis are forms of necrosis-like cell death. These cell death modalities play key roles in the pathophysiology of cancer, cardiovascular, neurological diseases, and other pathologies. Transition metals are abundant group of elements in all living organisms. This paper presents a summary of ferroptosis and pyroptosis pathways and their connection to significant transition metals, namely zinc (Zn), copper (Cu), molybdenum (Mo), lead (Pb), cobalt (Co), iron (Fe), cadmium (Cd), nickel (Ni), mercury (Hg), uranium (U), platinum (Pt), and one crucial element, selenium (Se). Authors aim to summarize the up-to-date knowledge of this topic.In this review, there are categorized and highlighted the most common patterns in the alterations of ferroptosis and pyroptosis by transition metals. Special attention is given to zinc since collected data support its dual nature of action in both ferroptosis and pyroptosis. All findings are presented together with a brief description of major biochemical pathways involving mentioned metals and are visualized in attached comprehensive figures.This work concludes that the majority of disruptions in the studied metals' homeostasis impacts cell fate, influencing both death and survival of cells in the complex system of altered pathways. Therefore, this summary opens up the space for further research.
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Affiliation(s)
- Frantisek Vana
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, CZ-625 00, Czech Republic
| | - Zoltan Szabo
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, CZ-625 00, Czech Republic
- Regional Centre for Applied Molecular Oncology, Masaryk Memorial Cancer Institute, Zluty kopec 7, Brno, 656 53, Czech Republic
| | - Michal Masarik
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, CZ-625 00, Czech Republic
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, CZ-625 00, Czech Republic
- First Faculty of Medicine, BIOCEV, Charles University, Prumyslova 595, Vestec, CZ-252 50, Czech Republic
| | - Monika Kratochvilova
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, Brno, CZ-625 00, Czech Republic.
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26
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Tian H, Liu Q, Yu X, Cao Y, Huang X. Damage-associated molecular patterns in viral infection: potential therapeutic targets. Crit Rev Microbiol 2024:1-18. [PMID: 39091137 DOI: 10.1080/1040841x.2024.2384885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 05/25/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024]
Abstract
Frequent viral infections leading to infectious disease outbreaks have become a significant global health concern. Fully elucidating the molecular mechanisms of the immune response against viral infections is crucial for epidemic prevention and control. The innate immune response, the host's primary defense against viral infection, plays a pivotal role and has become a breakthrough in research mechanisms. A component of the innate immune system, damage-associated molecular patterns (DAMPs) are involved in inducing inflammatory responses to viral infections. Numerous DAMPs are released from virally infected cells, activating downstream signaling pathways via internal and external receptors on immune cells. This activation triggers immune responses and helps regulate viral host invasion. This review examines the immune regulatory mechanisms of various DAMPs, such as the S100 protein family, high mobility group box 1 (HMGB1), and heat shock proteins, in various viral infections to provide a theoretical basis for designing novel antiviral drugs.
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Affiliation(s)
- Huizhen Tian
- School of Basic Medical Sciences, Jiangxi medical College, Nanchang University, Nanchang, China
| | - Qiong Liu
- School of Basic Medical Sciences, Jiangxi medical College, Nanchang University, Nanchang, China
| | - Xiaomin Yu
- School of Basic Medical Sciences, Jiangxi medical College, Nanchang University, Nanchang, China
- Medical Experimental Teaching Center, School of Basic Medical Sciences, School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Yanli Cao
- School of Basic Medical Sciences, Jiangxi medical College, Nanchang University, Nanchang, China
| | - Xiaotian Huang
- School of Basic Medical Sciences, Jiangxi medical College, Nanchang University, Nanchang, China
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27
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Schuermans S, Kestens C, Marques PE. Systemic mechanisms of necrotic cell debris clearance. Cell Death Dis 2024; 15:557. [PMID: 39090111 PMCID: PMC11294570 DOI: 10.1038/s41419-024-06947-5] [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: 03/27/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/04/2024]
Abstract
Necrosis is an overarching term that describes cell death modalities caused by (extreme) adverse conditions in which cells lose structural integrity. A guaranteed consequence of necrosis is the production of necrotic cell remnants, or debris. Necrotic cell debris is a strong trigger of inflammation, and although inflammatory responses are required for tissue healing, necrotic debris may lead to uncontrolled immune responses and collateral damage. Besides local phagocytosis by recruited leukocytes, there is accumulating evidence that extracellular mechanisms are also involved in necrotic debris clearance. In this review, we focused on systemic clearance mechanisms present in the bloodstream and vasculature that often cooperate to drive the clearance of cell debris. We reviewed the contribution and cooperation of extracellular DNases, the actin-scavenger system, the fibrinolytic system and reticuloendothelial cells in performing clearance of necrotic debris. Moreover, associations of the (mis)functioning of these clearance systems with a variety of diseases were provided, illustrating the importance of the mechanisms of clearance of dead cells in the organism.
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Affiliation(s)
- Sara Schuermans
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Caine Kestens
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Pedro Elias Marques
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium.
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28
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Liu T, Yao W, Sun W, Yuan Y, Liu C, Liu X, Wang X, Jiang H. Components, Formulations, Deliveries, and Combinations of Tumor Vaccines. ACS NANO 2024; 18:18801-18833. [PMID: 38979917 DOI: 10.1021/acsnano.4c05065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Tumor vaccines, an important part of immunotherapy, prevent cancer or kill existing tumor cells by activating or restoring the body's own immune system. Currently, various formulations of tumor vaccines have been developed, including cell vaccines, tumor cell membrane vaccines, tumor DNA vaccines, tumor mRNA vaccines, tumor polypeptide vaccines, virus-vectored tumor vaccines, and tumor-in-situ vaccines. There are also multiple delivery systems for tumor vaccines, such as liposomes, cell membrane vesicles, viruses, exosomes, and emulsions. In addition, to decrease the risk of tumor immune escape and immune tolerance that may exist with a single tumor vaccine, combination therapy of tumor vaccines with radiotherapy, chemotherapy, immune checkpoint inhibitors, cytokines, CAR-T therapy, or photoimmunotherapy is an effective strategy. Given the critical role of tumor vaccines in immunotherapy, here, we look back to the history of tumor vaccines, and we discuss the antigens, adjuvants, formulations, delivery systems, mechanisms, combination therapy, and future directions of tumor vaccines.
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Affiliation(s)
- Tengfei Liu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Wenyan Yao
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Wenyu Sun
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Yihan Yuan
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Chen Liu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Xiaohui Liu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Xuemei Wang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hui Jiang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
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29
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Nuszkiewicz J, Kukulska-Pawluczuk B, Piec K, Jarek DJ, Motolko K, Szewczyk-Golec K, Woźniak A. Intersecting Pathways: The Role of Metabolic Dysregulation, Gastrointestinal Microbiome, and Inflammation in Acute Ischemic Stroke Pathogenesis and Outcomes. J Clin Med 2024; 13:4258. [PMID: 39064298 PMCID: PMC11278353 DOI: 10.3390/jcm13144258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/13/2024] [Accepted: 07/20/2024] [Indexed: 07/28/2024] Open
Abstract
Acute ischemic stroke (AIS) remains a major cause of mortality and long-term disability worldwide, driven by complex and multifaceted etiological factors. Metabolic dysregulation, gastrointestinal microbiome alterations, and systemic inflammation are emerging as significant contributors to AIS pathogenesis. This review addresses the critical need to understand how these factors interact to influence AIS risk and outcomes. We aim to elucidate the roles of dysregulated adipokines in obesity, the impact of gut microbiota disruptions, and the neuroinflammatory cascade initiated by lipopolysaccharides (LPS) in AIS. Dysregulated adipokines in obesity exacerbate inflammatory responses, increasing AIS risk and severity. Disruptions in the gut microbiota and subsequent LPS-induced neuroinflammation further link systemic inflammation to AIS. Advances in neuroimaging and biomarker development have improved diagnostic precision. Here, we highlight the need for a multifaceted approach to AIS management, integrating metabolic, microbiota, and inflammatory insights. Potential therapeutic strategies targeting these pathways could significantly improve AIS prevention and treatment. Future research should focus on further elucidating these pathways and developing targeted interventions to mitigate the impacts of metabolic dysregulation, microbiome imbalances, and inflammation on AIS.
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Affiliation(s)
- Jarosław Nuszkiewicz
- Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza St., 85-092 Bydgoszcz, Poland;
| | - Beata Kukulska-Pawluczuk
- Department of Neurology, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 9 M. Skłodowskiej—Curie St., 85-094 Bydgoszcz, Poland; (B.K.-P.); (K.P.)
| | - Katarzyna Piec
- Department of Neurology, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 9 M. Skłodowskiej—Curie St., 85-094 Bydgoszcz, Poland; (B.K.-P.); (K.P.)
| | - Dorian Julian Jarek
- Student Research Club of Medical Biology and Biochemistry, Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza St., 85-092 Bydgoszcz, Poland;
| | - Karina Motolko
- Student Research Club of Neurology, Department of Neurology, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 9 M. Skłodowskiej—Curie St., 85-094 Bydgoszcz, Poland;
| | - Karolina Szewczyk-Golec
- Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza St., 85-092 Bydgoszcz, Poland;
| | - Alina Woźniak
- Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza St., 85-092 Bydgoszcz, Poland;
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30
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Zeng L, Yang K, Yu G, Hao W, Zhu X, Ge A, Chen J, Sun L. Advances in research on immunocyte iron metabolism, ferroptosis, and their regulatory roles in autoimmune and autoinflammatory diseases. Cell Death Dis 2024; 15:481. [PMID: 38965216 PMCID: PMC11224426 DOI: 10.1038/s41419-024-06807-2] [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: 02/10/2024] [Revised: 05/26/2024] [Accepted: 06/03/2024] [Indexed: 07/06/2024]
Abstract
Autoimmune diseases commonly affect various systems, but their etiology and pathogenesis remain unclear. Currently, increasing research has highlighted the role of ferroptosis in immune regulation, with immune cells being a crucial component of the body's immune system. This review provides an overview and discusses the relationship between ferroptosis, programmed cell death in immune cells, and autoimmune diseases. Additionally, it summarizes the role of various key targets of ferroptosis, such as GPX4 and TFR, in immune cell immune responses. Furthermore, the release of multiple molecules, including damage-associated molecular patterns (DAMPs), following cell death by ferroptosis, is examined, as these molecules further influence the differentiation and function of immune cells, thereby affecting the occurrence and progression of autoimmune diseases. Moreover, immune cells secrete immune factors or their metabolites, which also impact the occurrence of ferroptosis in target organs and tissues involved in autoimmune diseases. Iron chelators, chloroquine and its derivatives, antioxidants, chloroquine derivatives, and calreticulin have been demonstrated to be effective in animal studies for certain autoimmune diseases, exerting anti-inflammatory and immunomodulatory effects. Finally, a brief summary and future perspectives on the research of autoimmune diseases are provided, aiming to guide disease treatment strategies.
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Affiliation(s)
- Liuting Zeng
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Graduate School of Peking Union Medical College, Nanjing, China.
| | - Kailin Yang
- Key Laboratory of Hunan Province for Integrated Traditional Chinese and Western Medicine on Prevention and Treatment of Cardio-Cerebral Diseases, School of Integrated Chinese and Western Medicine, Hunan University of Chinese Medicine, Changsha, China.
- Psychosomatic laboratory, Department of Psychiatry, Daqing Hospital of Traditional Chinese Medicine, Daqing, China.
| | - Ganpeng Yu
- People's Hospital of Ningxiang City, Ningxiang, China
| | - Wensa Hao
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | | | - Anqi Ge
- The First Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Junpeng Chen
- Psychosomatic laboratory, Department of Psychiatry, Daqing Hospital of Traditional Chinese Medicine, Daqing, China.
- Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, USA.
- College of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan, China.
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Graduate School of Peking Union Medical College, Nanjing, China.
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
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31
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Ali BM, Al-Mokaddem AK, Selim HMRM, Alherz FA, Saleh A, Hamdan AME, Ousman MS, El-Emam SZ. Pinocembrin's protective effect against acute pancreatitis in a rat model: The correlation between TLR4/NF-κB/NLRP3 and miR-34a-5p/SIRT1/Nrf2/HO-1 pathways. Biomed Pharmacother 2024; 176:116854. [PMID: 38824834 DOI: 10.1016/j.biopha.2024.116854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Acute pancreatitis (APS) is a prevalent acute pancreatic inflammation, where oxidative stress, inflammatory signaling pathways, and apoptosis activation contribute to pancreatic injury. METHODS Pinocembrin, the predominant flavonoid in propolis, was explored for its likely shielding effect against APS provoked by two intraperitoneal doses of L-arginine (250 mg / 100 g) in a rat model. RESULTS Pinocembrin ameliorated the histological and immunohistochemical changes in pancreatic tissues and lowered the activities of pancreatic amylase and lipase that were markedly elevated with L-arginine administration. Moreover, pinocembrin reinstated the oxidant/antioxidant equilibrium, which was perturbed by L-arginine, and boosted the pancreatic levels of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1). Pinocembrin markedly reduced the elevation in serum C-reactive protein (CRP) level induced by L-arginine. Additionally, it decreased the expression of high motility group box protein 1 (HMGB1), toll-like receptor 4 (TLR4), nuclear factor kappa B (NF-κB), tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and NOD-like receptor (NLR) Family Pyrin Domain Containing 3 (NLRP3) inflammasome in the pancreas. Furthermore, it also reduced myeloperoxidase (MPO) activity. Pinocembrin markedly downregulated miR-34a-5p expression and upregulated the protein levels of peroxisome proliferator-activated receptor alpha (PPAR-α) and Sirtuin 1 (SIRT1) and the gene expression level of the inhibitor protein of NF-κB (IκB-α), along with normalizing the Bax/Bcl-2 ratio. CONCLUSIONS Pinocembrin notably improved L-arginine-induced APS by its antioxidant, anti-inflammatory, and anti-apoptotic activities. Pinocembrin exhibited a protective role in APS by suppressing inflammatory signaling via the TLR4/NF-κB/NLRP3 pathway and enhancing cytoprotective signaling via the miR-34a-5p/SIRT1/Nrf2/HO-1 pathway.
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Affiliation(s)
- Bassam Mohamed Ali
- Department of Biochemistry, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt
| | - Asmaa K Al-Mokaddem
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Heba Mohammed Refat M Selim
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Almaarefa University, P.O.Box 71666, Diriyah, Riyadh 13713, Saudi Arabia
| | - Fatemah A Alherz
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Asmaa Saleh
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | | | - Mona S Ousman
- Emergency medical services, College of Applied Sciences, Almaarefa University, Diriyah, Riyadh 13713, Saudi Arabia
| | - Soad Z El-Emam
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt.
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Liu Y, Xu T, Ma Z, Zhang C, Xu M, Li Q, Chen W, Zhang Y, Liu C, Lin N. Cartilage protective and anti-edema effects of JTF in osteoarthritis via inhibiting NCOA4-HMGB1-driven ferroptosis and aquaporin dysregulation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155593. [PMID: 38621329 DOI: 10.1016/j.phymed.2024.155593] [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: 12/31/2023] [Revised: 02/24/2024] [Accepted: 04/05/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND Preventing joint edema is crucial in halting osteoarthritis (OA) progression. Growing clinical evidence indicate that Jianpi-Tongluo Formula (JTF) may have a promising anti-edema effect. However, the therapeutic properties of JTF and the underlying mechanisms remains unclear. MATERIALS AND METHODS An OA rat model was established and employed to evaluate pharmacological effects of JTF in vivo based on dynamic histopathologic assessments and micro-CT observations. Then, OA-related genes and potential targets of JTF were identified through clinical transcriptomic data analysis and "disease gene-drug target" network analysis, which were verified by a series of in vivo experiments. RESULTS JTF administration effectively reduced pain and joint edema, inhibited matrix degradation, chondrocyte apoptosis, and aquaporin expression in OA rats. Notably, JTF dose-dependently reversed damage-associated molecular patterns and inflammatory factor upregulation. Mechanically, our "disease gene-drug target" network analysis indicated that the NCOA4-HMGB1-GSK3B-AQPs axis, implicated in ferroptosis and aquaporin dysregulation, may be potentially served as a target of JTF against OA. Accordingly, JTF mitigated NCOA4, HMGB1, and GSK3B expression, oxidative stress, and iron metabolism aberrations in OA rats. Furthermore, JTF treatment significantly attenuated the aberrant upregulation of AQP1, AQP3, and AQP4 proteins observed in cartilage tissues of OA rats. CONCLUSION Our data reveal for the first time that JTF may exert cartilage protective and anti-edema effects in osteoarthritis therapy by inhibiting NCOA4-HMGB1-driven ferroptosis and aquaporin dysregulation.
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Affiliation(s)
- Yudong Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Tengteng Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Zhaochen Ma
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Chu Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Mingzhu Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Qun Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China
| | - Weiheng Chen
- Third Affiliated Hospital of Beijing University of Chinese Medicine, No. 51 Anwai Xiaoguanjie, Chaoyang District, Beijing 100029, China
| | - Yanqiong Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China.
| | - Chunfang Liu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China.
| | - Na Lin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, No. 16, Nanxiaojie, Dongzhimennei, Beijing 100700, China.
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McRae SA, Richards CM, Da Silva DE, Riar I, Yang SS, Zurfluh NE, Gibon J, Klegeris A. Pro-neuroinflammatory and neurotoxic potential of extracellular histones H1 and H3. Neurosci Res 2024; 204:34-45. [PMID: 38278218 DOI: 10.1016/j.neures.2024.01.004] [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: 05/17/2023] [Revised: 12/23/2023] [Accepted: 01/17/2024] [Indexed: 01/28/2024]
Abstract
Histones organize DNA within cellular nuclei, but they can be released from damaged cells. In peripheral tissues extracellular histones act as damage-associated molecular patterns (DAMPs) inducing pro-inflammatory activation of immune cells. Limited studies have considered DAMP-like activity of histones in the central nervous system (CNS); therefore, we studied the effects of extracellular histones on microglia, the CNS immunocytes, and on neuronal cells. Both the linker histone H1 and the core histone H3 induced pro-inflammatory activation of microglia-like cells by upregulating their secretion of NO and cytokines, including interferon-γ-inducible protein 10 (IP-10) and tumor necrosis factor-α (TNF). The selective inhibitors MMG-11 and TAK-242 were used to demonstrate involvement of toll-like receptors (TLR) 2 and 4, respectively, in H1-induced NO secretion by BV-2 microglia. H1, but not H3, downregulated the phagocytic activity of BV-2 microglia. H1 was also directly toxic to all neuronal cell types studied. We conclude that H1, and to a lesser extent H3, when released extracellularly, have the potential to act as a CNS DAMPs. Inhibition of the DAMP-like effects of extracellular histones on microglia and their neurotoxic activity represents a potential strategy for combating neurodegenerative diseases that are characterized by the adverse activation of microglia and neuronal death.
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Affiliation(s)
- Seamus A McRae
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Christy M Richards
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Dylan E Da Silva
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Ishvin Riar
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Sijie Shirley Yang
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Noah E Zurfluh
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Julien Gibon
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada
| | - Andis Klegeris
- Department of Biology, University of British Columbia Okanagan Campus, Kelowna, BC V1V 1V7, Canada.
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Roodenburg SA, Hartman JE, Eichhorn IA, Slebos DJ, Pouwels SD. Low serum double-stranded DNA levels are associated with higher survival rates in severe COPD patients. ERJ Open Res 2024; 10:00240-2024. [PMID: 39010886 PMCID: PMC11247366 DOI: 10.1183/23120541.00240-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 07/17/2024] Open
Abstract
Introduction Damage-associated molecular patterns (DAMPs) are endogenous danger signals that alert and activate the immune system upon cellular damage or death. It has previously been shown that DAMP release is increased in patients with COPD, leading to higher levels in extracellular fluids such as serum. In the current study we investigated whether the serum levels of DAMPs were associated with survival rates in COPD patients. Methods A panel of seven DAMPs, consisting of HMGB1, fibrinogen, α-defensin, heat shock protein 70, S100A8, galectin-9 and double-stranded DNA (dsDNA), was measured in serum of 949 severe COPD patients. Maximally selected rank statistics was used to define cut-off values and a Cox proportional hazards model was used to evaluate the effect of high or low DAMP levels on 4-year survival. For DAMPs that were found to affect survival significantly, baseline characteristics were compared between the two DAMP groups. Results Out of the seven DAMPs, only dsDNA was significantly associated with 4-year survival. Patients with elevated serum level of dsDNA had higher 4-year mortality rates, lower FEV1 % predicted values and higher emphysema scores. Discussion In conclusion, in a clinical cohort of 949 patients with moderate-to-severe COPD, elevated serum levels of dsDNA were associated with a higher risk of death. This study further illustrates the potential role of circulating DAMPs, such as dsDNA, in the progression of COPD. Together, the results of this study suggest that levels of circulating dsDNA might serve as an additional prognostic biomarker for survival in COPD patients.
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Affiliation(s)
- Sharyn A Roodenburg
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Jorine E Hartman
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Ilse A Eichhorn
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
| | - Dirk-Jan Slebos
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
| | - Simon D Pouwels
- University of Groningen, University Medical Center Groningen, Department of Pulmonary Diseases, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, The Netherlands
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Bak S, Kim KS, Na K. Human adipose-derived stem cells genetically programmed to induce necroptosis for cancer immunotherapy. Cancer Gene Ther 2024; 31:995-1006. [PMID: 38858535 DOI: 10.1038/s41417-024-00794-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/12/2024]
Abstract
Herein, we present human adipose-derived stem cells (ADSCs) inserted with the receptor-interacting protein kinase-3 (RIP3) gene (RP@ADSCs), which induces cell necroptosis, for tumor immunotherapy. Necroptosis has characteristics of both apoptosis, such as programmed cell death, and necrosis, such as swelling and plasma membrane rupture, during which damage-related molecular patterns are released, triggering an immune response. Therefore, necroptosis has the potential to be used as an effective anticancer immunotherapy. RP@ADSCs were programmed to necroptosis after a particular time after being injected in vivo, and various pro-inflammatory cytokines secreted during the stem cell death process stimulated the immune system, showing local and sustained anticancer effects. It was confirmed that RIP3 protein expression increased in ADSCs after RP transfection. RP@ADSCs continued to induce ADSCs death for 7 days, and various pro-inflammatory cytokines were secreted through ADSCs death. The efficacy of RP@ADSCs-mediated immunotherapy was evaluated in mouse models bearing GL-26 (glioblastoma) and K1735 (melanoma), and it was found that RP resulted in an increase in the population of long-term cytotoxic T cells and a decrease in the population of regulatory T cells. This shows that RP@ADSCs have potential and applicability as an excellent anticancer immunotherapy agent in clinical practice.
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Affiliation(s)
- Soyeon Bak
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Kyoung Sub Kim
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea
| | - Kun Na
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 14662, Republic of Korea.
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Nicolaes GAF, Soehnlein O. Targeting extranuclear histones to alleviate acute and chronic inflammation. Trends Pharmacol Sci 2024; 45:651-662. [PMID: 38853103 DOI: 10.1016/j.tips.2024.05.008] [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: 04/25/2024] [Revised: 05/22/2024] [Accepted: 05/22/2024] [Indexed: 06/11/2024]
Abstract
Extracellular histones instigate an inflammatory triad - centered on cytotoxicity, immune cell stimulation, and coagulation - ultimately shaping the dynamics and outcome of various inflammatory pathologies. Given the virtual absence of beneficial functions of histones in the extracellular space, in recent years a number of interference strategies have emerged. In this review we summarize pathogenic functions of extracellular histones and highlight current developments of therapeutic interference. Finally, we elaborate on the current status of preclinical attempts to interfere with extracellular histones in the context of a focus on sepsis and cardiovascular diseases, both of which are leading causes of mortality worldwide.
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Affiliation(s)
- Gerry A F Nicolaes
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), University of Maastricht, The Netherlands.
| | - Oliver Soehnlein
- Institute of Experimental Pathology (ExPat), Center of Molecular Biology of Inflammation (ZMBE), University of Münster, Münster, Germany.
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Kuang S, Sheng W, Meng J, Liu W, Xiao Y, Tang H, Fu X, Kuang M, He Q, Gao S. Pyroptosis-related crosstalk in osteoarthritis: Macrophages, fibroblast-like synoviocytes and chondrocytes. J Orthop Translat 2024; 47:223-234. [PMID: 39040491 PMCID: PMC11262125 DOI: 10.1016/j.jot.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/28/2024] [Accepted: 06/20/2024] [Indexed: 07/24/2024] Open
Abstract
The pathogenesis of osteoarthritis (OA) involves a multifaceted interplay of inflammatory processes. The initiation of pyroptosis involves the secretion of pro-inflammatory cytokines and has been identified as a critical factor in regulating the development of OA. Upon initiation of pyroptosis, a multitude of inflammatory mediators are released and can be disseminated throughout the synovial fluid within the joint cavity, thereby facilitating intercellular communication across the entire joint. The main cellular components of joints include chondrocytes (CC), fibroblast-like synoviocytes (FLS) and macrophages (MC). Investigating their interplay can enhance our understanding of OA pathogenesis. Therefore, we comprehensively examine the mechanisms underlying pyroptosis and specifically investigate the intercellular interactions associated with pyroptosis among these three cell types, thereby elucidating their collective contribution to the progression of OA. We propose the concept of ' CC-FLS-MC pyroptosis-related crosstalk', describe the various pathways of pyroptotic interactions among these three cell types, and focus on recent advances in intervening pyroptosis in these three cell types for treating OA. We hope this will provide a possible direction for diversification of treatment for OA. The Translational potential of this article. The present study introduces the concept of 'MC-FLS-CC pyroptosis-related crosstalk' and provides an overview of the mechanisms underlying pyroptosis, as well as the pathways through which it affects MC, FLS, and CC. In addition, the role of regulation of these three types of cellular pyroptosis in OA has also been concerned. This review offers novel insights into the interplay between these cell types, with the aim of providing a promising avenue for diversified management of OA.
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Affiliation(s)
- Shida Kuang
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Andrology Laboratory, Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Medicine, Huaihua, Hunan, China
| | - Wen Sheng
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Andrology Laboratory, Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Medicine, Huaihua, Hunan, China
| | - Jiahao Meng
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan, China
- Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Weijie Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan, China
- Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yifan Xiao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan, China
- Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hang Tang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan, China
- Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xinying Fu
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Andrology Laboratory, Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Medicine, Huaihua, Hunan, China
| | - Min Kuang
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Andrology Laboratory, Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Medicine, Huaihua, Hunan, China
| | - Qinghu He
- College of Traditional Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China
- Andrology Laboratory, Hunan University of Chinese Medicine, Changsha, China
- Hunan University of Medicine, Huaihua, Hunan, China
| | - Shuguang Gao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, Hunan, China
- Hunan Engineering Research Center of Osteoarthritis, Changsha, Hunan, China
- National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Yamaga S, Murao A, Zhou M, Aziz M, Brenner M, Wang P. Radiation-induced eCIRP impairs macrophage bacterial phagocytosis. J Leukoc Biol 2024:qiae132. [PMID: 38920274 DOI: 10.1093/jleuko/qiae132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/29/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024] Open
Abstract
Macrophages are essential immune cells for host defense against bacterial pathogens after radiation injury. However, the role of macrophage phagocytosis in infection following radiation injury remains poorly examined. Extracellular cold-inducible RNA-binding protein (eCIRP) is a damage-associated molecular pattern that dysregulates host immune system responses such as phagocytosis. We hypothesized that radiation-induced eCIRP release impairs macrophage phagocytosis of bacteria. Adult healthy mice were exposed to 6.5-Gy total body irradiation (TBI). Primary peritoneal macrophages isolated from adult healthy mice were exposed to 6.5-Gy radiation. eCIRP-neutralizing monoclonal antibody (mAb) was added to the cell culture prior to irradiation. Bacterial phagocytosis by peritoneal macrophages was assessed using pHrodo Green-labeled E. coli 7 days after irradiation ex vivo and in vitro. Bacterial phagocytosis was also assessed after treatment with recombinant murine CIRP (rmCIRP). Rac1 and ARP2 protein expression in cell lysates and eCIRP levels in the peritoneal lavage were assessed by Western blotting. Bacterial phagocytosis by peritoneal macrophages was significantly decreased after irradiation compared to controls ex vivo and in vitro. Rac1 and ARP2 expression in the peritoneal macrophages were downregulated after TBI. TBI significantly increased eCIRP levels in the peritoneal cavity. rmCIRP significantly decreased bacterial phagocytosis in a dose-dependent manner. eCIRP mAb restored bacterial phagocytosis by peritoneal macrophages after irradiation. Ionizing radiation exposure impairs bacterial phagocytosis by macrophages after irradiation. Neutralization of eCIRP restores the phagocytic ability of macrophages after irradiation. Our findings elucidate a novel mechanism of immune dysfunction and provide a potential new therapeutic approach for limiting infection after radiation injury.
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Affiliation(s)
- Satoshi Yamaga
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY 11030, USA
| | - Atsushi Murao
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY 11030, USA
| | - Mian Zhou
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY 11030, USA
| | - Monowar Aziz
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY 11030, USA
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, 350 Community Dr, Manhasset, NY 11030, USA
| | - Max Brenner
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY 11030, USA
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, 350 Community Dr, Manhasset, NY 11030, USA
| | - Ping Wang
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, 350 Community Dr, Manhasset, NY 11030, USA
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, 350 Community Dr, Manhasset, NY 11030, USA
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Castillo C, Díaz-Luján C, Liempi A, Fretes R, Kemmerling U. Mammalian placental explants: A tool for studying host-parasite interactions and placental biology. Placenta 2024:S0143-4004(24)00291-1. [PMID: 38910051 DOI: 10.1016/j.placenta.2024.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 06/25/2024]
Abstract
The placenta plays a critical role in host-pathogen interactions. Thus, ex vivo infection of mammalian placental explants is an excellent and simple method to study the mechanisms of cellular and tissue invasion by different pathogens in different mammalian species. These explants can be maintained in culture for several days, preserving the tissue architecture and resembling in-utero conditions under more physiological conditions than their isolated counterparts in isolated cell culture models. In addition, placental explants not only allow us to study how the placenta responds and defends itself against various infections but also provide a versatile platform for advancing our understanding of placental biology and the immune response. Furthermore, they serve as powerful tools for drug discovery, facilitating the screening of potential therapeutics for placental infections and for the identification of diagnostic markers. This review highlights the utility of mammalian placental explants in studying the host-pathogen interaction of two relevant protozoan parasites, Trypanosoma cruzi, the causative agent of Chagas disease, and Toxoplasma gondii, the etiological agent of Toxoplasmosis. Here, we discuss the different methodologies and technical aspects of the model, as well as the effect of both parasites on placental responses in human, canine, and ovine explants.
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Affiliation(s)
- Christian Castillo
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
| | - Cintia Díaz-Luján
- Institute and Cathedra of Cell Biology, Histology and Embryology, Health Science Faculty, INICSA (CONICET)-Universidad Nacional de Córdoba and Villa María, Córdoba, Argentina
| | - Ana Liempi
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Ricardo Fretes
- Institute and Cathedra of Cell Biology, Histology and Embryology, Health Science Faculty, INICSA (CONICET)-Universidad Nacional de Córdoba and Villa María, Córdoba, Argentina
| | - Ulrike Kemmerling
- Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
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Saravanan PB, Kalivarathan J, McClintock K, Mohammed S, Burch E, Morecock C, Liu J, Khan A, Levy MF, Kanak MA. Inflammatory and hypoxic stress-induced islet exosomes released during isolation are associated with poor transplant outcomes in islet autotransplantation. Am J Transplant 2024; 24:967-982. [PMID: 38364959 DOI: 10.1016/j.ajt.2024.02.011] [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: 09/05/2023] [Revised: 02/03/2024] [Accepted: 02/10/2024] [Indexed: 02/18/2024]
Abstract
Islets experience enormous stress during the isolation process, leading to suboptimal endocrine function after total pancreatectomy with islet autotransplantation (TPIAT). Our investigation focused on inducing isolation stress in islets ex vivo, where proinflammatory cytokines and hypoxia prompted the release of stress exosomes (exoS) sized between 50 and 200 nm. Mass spectrometry analysis revealed 3 distinct subgroups of immunogenic proteins within these exoS: damage-associated molecular patterns (DAMPs), chaperones, and autoantigens. The involvement of endosomal-sorting complex required for transport proteins including ras-associated binding proteins7A, ras-associated binding protein GGTA, vacuolar protein sorting associated protein 45, vacuolar protein sorting associated protein 26B, and the tetraspanins CD9 and CD63, in exoS biogenesis was confirmed through immunoblotting. Next, we isolated similar exoS from the islet infusion bags of TPIAT recipients (N = 20). The exosomes from infusion bags exhibited higher DAMP (heat shock protein family A [Hsp70] member 1B and histone H2B) levels, particularly in the insulin-dependent TPIAT group. Additionally, elevated DAMP protein levels in islet infusion bag exosomes correlated with increased insulin requirements (P = .010) and higher hemoglobin A1c levels 1-year posttransplant. A deeper exploration into exoS functionality revealed their potential to activate monocytes via the toll-like receptor 3/7: DAMP axis. This stimulation resulted in the induction of inflammatory phenotypes marked by increased levels of CD68, CD80, inducible nitric oxide synthase, and cyclooxygenase-2. This activation mechanism may impact the successful engraftment of transplanted islets.
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Affiliation(s)
- Prathab Balaji Saravanan
- Department of Surgery, School of Medicine, VCU, Richmond, Virginia, USA; VCU Hume-Lee Islet Cell Transplant Lab, VCU Health System, Richmond, Virginia, USA.
| | - Jagan Kalivarathan
- VCU Hume-Lee Islet Cell Transplant Lab, VCU Health System, Richmond, Virginia, USA
| | - Kaeden McClintock
- Department of Surgery, School of Medicine, VCU, Richmond, Virginia, USA
| | | | - Elijah Burch
- VCU Hume-Lee Islet Cell Transplant Lab, VCU Health System, Richmond, Virginia, USA
| | - Christiane Morecock
- Department of Biostatistics, School of Medicine, VCU, Richmond, Virginia, USA
| | - Jinze Liu
- Department of Biostatistics, School of Medicine, VCU, Richmond, Virginia, USA
| | - Aamir Khan
- Department of Surgery, School of Medicine, VCU, Richmond, Virginia, USA; VCU Hume-Lee Islet Cell Transplant Lab, VCU Health System, Richmond, Virginia, USA
| | - Marlon F Levy
- Department of Surgery, School of Medicine, VCU, Richmond, Virginia, USA; VCU Hume-Lee Islet Cell Transplant Lab, VCU Health System, Richmond, Virginia, USA
| | - Mazhar A Kanak
- Department of Surgery, School of Medicine, VCU, Richmond, Virginia, USA; VCU Hume-Lee Islet Cell Transplant Lab, VCU Health System, Richmond, Virginia, USA
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Park JY, Kim JH, Park CH, Kim SH, Kim IH, Cho WG. Polyhexamethylene guanidine phosphate induces pyroptosis via reactive oxygen species-regulated mitochondrial dysfunction in bronchial epithelial cells. Toxicology 2024; 505:153827. [PMID: 38729513 DOI: 10.1016/j.tox.2024.153827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 05/12/2024]
Abstract
Pyroptosis is a form of programmed cell death characterized by gasdermin (GSDM)-mediated pore formation in the cell membrane, resulting in the release of pro-inflammatory cytokines and cellular lysis. Increasing evidence has shown that pyroptosis is responsible for the progression of various pulmonary disorders. The inhalation of polyhexamethylene guanidine (PHMG) causes severe lung inflammation and pulmonary toxicity; however, the underlying mechanisms are unknown. Therefore, in this study, we investigate the role of pyroptosis in PHMG-induced pulmonary toxicity. We exposed bronchial epithelial cells, BEAS-2B, to PHMG phosphate (PHMG-p) and evaluated cell death type, reactive oxygen species (ROS) levels, and relative expression levels of pyroptosis-related proteins. Our data revealed that PHMG-p reduced viability and induced morphological alterations in BEAS-2B cells. Exposure to PHMG-p induced excessive accumulation of mitochondrial ROS (mtROS) in BEAS-2B cells. PHMG-p activated caspase-dependent apoptosis as well as NLRP3/caspase-1/GSDMD-mediated- and caspase-3/GSDME-mediated pyroptosis through mitochondrial oxidative stress in BEAS-2B cells. Notably, PHMG-p reduced mitochondrial respiratory function and induced the translocation of Bax and cleaved GSDM into the mitochondria, leading to mitochondrial dysfunction. Our results enhanced our understanding of PHMG-p-induced lung toxicity by demonstrating that PHMG-p induces pyroptosis via mtROS-induced mitochondrial dysfunction in bronchial epithelial cells.
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Affiliation(s)
- Jun Young Park
- Department of Nuclear Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Ji-Hee Kim
- Department of Occupational Therapy, Soonchunhyang University, 22 Soonchunhyang-ro, Asan-si 35138, Republic of Korea
| | - Chan Ho Park
- Department of Anatomy, Yonsei University Wonju College of Medicine, 20, Ilsan-ro, Wonju-si, Gangwon-do 26426, Republic of Korea
| | - Sung-Hwan Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - In-Hyeon Kim
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Won Gil Cho
- Department of Anatomy, Yonsei University Wonju College of Medicine, 20, Ilsan-ro, Wonju-si, Gangwon-do 26426, Republic of Korea.
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Zhao H, Zong X, Li L, Li N, Liu C, Zhang W, Li J, Yang C, Huang S. Electroacupuncture Inhibits Neuroinflammation Induced by Astrocytic Necroptosis Through RIP1/MLKL/TLR4 Pathway in a Mouse Model of Spinal Cord Injury. Mol Neurobiol 2024; 61:3258-3271. [PMID: 37982922 DOI: 10.1007/s12035-023-03650-y] [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: 05/19/2023] [Accepted: 09/08/2023] [Indexed: 11/21/2023]
Abstract
Astrocytic necroptosis plays an essential role in the progression and regression of neurological disorders, which contributes to the neuroinflammation and disrupts neuronal regeneration and remyelination of severed axons. Electroacupuncture (EA), an effective therapeutic efficacy against spinal cord injury (SCI), has been proved to reduce neuronal cell apoptosis, inhibit inflammation, and prompt neural stem cell proliferation and differentiations. However, there have been few reports on whether EA regulate astrocytic necroptosis in SCI model. To investigate the effects of EA on astrocytic necroptosis and the mechanisms involved in the inhibition of astrocytic necroptosis after SCI in mice by EA, 8-week-old female C57BL/6 mice were subjected to SCI surgery and randomly divided into EA and SCI groups. Mice receiving sham surgery were included as sham group. "Jiaji" was selected as points for EA treatment, 10 min/day for 14 days. The in vitro data revealed that EA treatment significantly improved the nervous function and pathological changes after SCI. EA also reduced the number of GFAP/P-MLKL, GFAP/MLKL, GFAP/HMGB1, and Iba1/HMGB1 co-positive cells and inhibited the expressions of IL-6, IL-1β, and IL-33. The results indicate a significant reduction in inflammatory reaction and astrocytic necroptosis in mice with SCI by EA. Additionally, the expressions of RIP1, MLKL, and TLR4, which are associated with necroptosis, were found to be downregulated by EA. In this study, we confirmed that EA can inhibit neuroinflammation by reducing astrocytic necroptosis through downregulation of RIP1/MLKL/TLR4 pathway in mice with SCI.
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Affiliation(s)
- Hongdi Zhao
- Chongqing Medical University, Chongqing, 400016, China
- Affiliated Hospital of Chifeng University, Inner Mongolia Autonomous Region, Chifeng, 024099, China
| | - Xiaoqin Zong
- Chongqing Medical University, Chongqing, 400016, China
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China
| | - Long Li
- Chongqing Medical University, Chongqing, 400016, China
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China
| | - Na Li
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China
| | - Chunlei Liu
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China
| | - Wanchao Zhang
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China
| | - Juan Li
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China
| | - Cheng Yang
- Chongqing Medical University, Chongqing, 400016, China.
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China.
| | - Siqin Huang
- Chongqing Medical University, Chongqing, 400016, China.
- Chongqing College of Traditional Chinese Medicine, Chongqing, 402760, China.
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Guo Q, Li H, Zeng C, Lü Z, Jiang M. Associations of cold-inducible RNA-binding protein with bacterial load, proinflammatory cytokines and mortality from pneumonia. Clin Transl Sci 2024; 17:e13850. [PMID: 38807464 PMCID: PMC11134167 DOI: 10.1111/cts.13850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 05/09/2024] [Accepted: 05/14/2024] [Indexed: 05/30/2024] Open
Abstract
Cold-inducible RNA-binding protein (CIRP) is a damage-associated molecular pattern that plays a critical role in triggering inflammatory responses. It remains unknown whether CIRP is strongly associated with bacterial load, inflammatory response, and mortality in sepsis model. Pneumonia was induced in specific pathogen-free 8-9-week old male rats by injecting bacteria via puncture of the tracheal cartilage. The expressions of CIRP and proinflammatory cytokines [tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and IL-1β] in lung tissues, alveolar macrophages (AMs), plasma, and bronchoalveolar lavage fluid (BALF) were determined by reverse transcription-polymerase chain reaction, western blotting, and enzyme-linked immunosorbent assay. The numbers of bacteria recovered from the lungs were correlated with the bacterial loads injected and mortality. The expressions of CIRP increased sharply as the bacterial loads increased in the lung tissues and AMs. The amounts of TNF-α, IL-6 and IL-1β proteins synthesized were dependent on the bacterial load in the lung tissues. Releases of CIRP, TNF-α, IL-6, and IL-1β increased with the bacterial load in the blood plasma. The proteins confirmed similar patterns in the BALF. CIRP was strongly associated with the releases of TNF-α, IL-6, and IL-1β in the lung tissues, blood plasma, and BALF, and showed a close correlation with mortality. CIRP demonstrated a strong association with bacterial load, which is new evidence, and close correlations with proinflammatory cytokines and mortality of pneumonia in rats, suggesting that it might be an interesting pneumonic biomarker for monitoring host response and predicting mortality, and a promising target for immunotherapy.
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Affiliation(s)
- Qi Guo
- Department of Pulmonary and Critical Care Medicine, Shenzhen HospitalPeking UniversityShenzhenGuangdongChina
- Department of Pulmonary and Critical Care MedicineThe Eighth Affiliated Hospital, Sun Yat‐sen UniversityShenzhenGuangdongChina
| | - Hai‐yan Li
- Department of General MedicineThe Eighth Affiliated Hospital, Sun Yat‐sen UniversityShenzhenGuangdongChina
| | - Chao Zeng
- Department of Pulmonary and Critical Care Medicine, Shenzhen HospitalPeking UniversityShenzhenGuangdongChina
| | - Zhong‐dong Lü
- Department of Pulmonary and Critical Care Medicine, Shenzhen HospitalPeking UniversityShenzhenGuangdongChina
| | - Mei Jiang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory HealthThe First Affiliated Hospital, Guangzhou Medical UniversityGuangzhouGuangdongChina
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Fok MR, Jin L. Learn, unlearn, and relearn post-extraction alveolar socket healing: Evolving knowledge and practices. J Dent 2024; 145:104986. [PMID: 38574844 DOI: 10.1016/j.jdent.2024.104986] [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: 01/11/2024] [Revised: 03/31/2024] [Accepted: 04/02/2024] [Indexed: 04/06/2024] Open
Abstract
OBJECTIVE This review was to offer a comprehensive analysis of currently available evidence on post-extraction alveolar socket healing, including i) the histological and molecular events during alveolar socket healing, ii) the dimensional ridge alterations after socket healing and controversies relating to sinus pneumatisation, iii) the patient-specific factors, procedural elements, and site-related variables influencing socket healing, iv) techniques and effectiveness of alveolar ridge preservation (ARP) procedure, and v) the philosophies and cost-effectiveness of ARP in clinical practice. SOURCES AND STUDY SELECTION To investigate the dimensional profiles of the alveolar ridge following unassisted healing, an overview of systematic reviews was conducted in February 2024 by two independent reviewers. Four electronic databases were searched in Pubmed, Embase, Web of science and Cochrane Library between 2004 and 2024 to identify all relevant systematic reviews on post-extraction healing. A further manual search of reviews was also conducted. The articles were further reviewed in full text for relevance. The AMSTAR-2 appraisal tool was adopted to assess methodological quality. Current research pertaining to other listed objectives was objectively analysed in narration. DATA 11 out of 459 retrieved studies were selected and ultimately covered in this review on the dimensional changes of alveolar ridge following natural healing: Seven systematic reviews and four systematic reviews with meta-analyses. The methodological quality of all included reviews was critically low. CONCLUSION This review thoroughly examines the healing profiles of post-extraction alveolar sockets and highlights the dynamic process with overlapping phases and the inter-individual variability in outcomes. ARP procedure is a potential strategy for facilitating prosthetic site development, while the current evidence is limited. Herein, an individualised and prosthetically driven approach is crucial. Further well sized and designed trials with novel biomaterials need to be undertaken, and the role of artificial intelligence in predicting healing and assisting clinical decision-making could be explored. CLINICAL SIGNIFICANCE By advancing our understanding of alveolar socket healing and its management strategies, clinicians can make more informed decisions regarding patient and site level assessment and selection, surgical techniques, and biomaterial choices, ultimately contributing to the enhanced healing process with reduced complications and improved quality of life for patients undergoing tooth extraction and dental implant treatments.
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Affiliation(s)
- Melissa Rachel Fok
- Division of Periodontology and Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China.
| | - Lijian Jin
- Division of Periodontology and Implant Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, PR China
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Hu H, Ma J, Peng Y, Feng R, Luo C, Zhang M, Tao Z, Chen L, Zhang T, Chen W, Yin Q, Zhai J, Chen J, Yin A, Wang CC, Zhong M. Thrombospondin-1 Regulates Trophoblast Necroptosis via NEDD4-Mediated Ubiquitination of TAK1 in Preeclampsia. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309002. [PMID: 38569496 PMCID: PMC11151050 DOI: 10.1002/advs.202309002] [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] [Received: 11/22/2023] [Revised: 03/05/2024] [Indexed: 04/05/2024]
Abstract
Preeclampsia (PE) is considered as a disease of placental origin. However, the specific mechanism of placental abnormalities remains elusive. This study identified thrombospondin-1 (THBS1) is downregulated in preeclamptic placentae and negatively correlated with blood pressure. Functional studies show that THBS1 knockdown inhibits proliferation, migration, and invasion and increases the cycle arrest and apoptosis rate of HTR8/SVneo cells. Importantly, THBS1 silencing induces necroptosis in HTR8/SVneo cells, accompanied by the release of damage-associated molecular patterns (DAMPs). Necroptosis inhibitors necrostatin-1 and GSK'872 restore the trophoblast survival while pan-caspase inhibitor Z-VAD-FMK has no effect. Mechanistically, the results show that THBS1 interacts with transforming growth factor B-activated kinase 1 (TAK1), which is a central modulator of necroptosis quiescence and affects its stability. Moreover, THBS1 silencing up-regulates the expression of neuronal precursor cell-expressed developmentally down-regulated 4 (NEDD4), which acts as an E3 ligase of TAK1 and catalyzes K48-linked ubiquitination of TAK1 in HTR8/SVneo cells. Besides, THBS1 attenuates PE phenotypes and improves the placental necroptosis in vivo. Taken together, the down-regulation of THBS1 destabilizes TAK1 by activating NEDD4-mediated, K48-linked TAK1 ubiquitination and promotes necroptosis and DAMPs release in trophoblast cells, thus participating in the pathogenesis of PE.
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Affiliation(s)
- Haoyue Hu
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Jing Ma
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - You Peng
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Rixuan Feng
- School of NursingSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Chenling Luo
- School of NursingSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Minyi Zhang
- Department of EpidemiologySchool of Public HealthSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Zixin Tao
- Department of Obstetrics and GynecologyGuangzhou First People's HospitalSchool of MedicineSouth China University of TechnologyGuangzhouGuangdong510180China
| | - Lu Chen
- Department of Obstetrics and Gynaecology;Li Ka Shing Institute of Health Sciences;School of Biomedical Sciences;Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong KongHong Kong SARNTChina
| | - Tao Zhang
- Department of Obstetrics and Gynaecology;Li Ka Shing Institute of Health Sciences;School of Biomedical Sciences;Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong KongHong Kong SARNTChina
| | - Wenqian Chen
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
- Guangzhou Key Laboratory of Forensic Multi‐Omics for Precision IdentificationSchool of Forensic MedicineSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Qian Yin
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Jinguo Zhai
- School of NursingSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Jun Chen
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Ailan Yin
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
| | - Chi Chiu Wang
- Department of Obstetrics and Gynaecology;Li Ka Shing Institute of Health Sciences;School of Biomedical Sciences;Chinese University of Hong Kong‐Sichuan University Joint Laboratory in Reproductive Medicine; The Chinese University of Hong KongHong Kong SARNTChina
| | - Mei Zhong
- Department of Obstetrics and GynecologyNanfang HospitalSouthern Medical UniversityGuangzhouGuangdong510515China
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Nofi CP, Prince JM, Wang P, Aziz M. Chromatin as alarmins in necrotizing enterocolitis. Front Immunol 2024; 15:1403018. [PMID: 38881893 PMCID: PMC11176418 DOI: 10.3389/fimmu.2024.1403018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 05/20/2024] [Indexed: 06/18/2024] Open
Abstract
Necrotizing enterocolitis (NEC) is a severe gastrointestinal disease primarily affecting premature neonates, marked by poorly understood pro-inflammatory signaling cascades. Recent advancements have shed light on a subset of endogenous molecular patterns, termed chromatin-associated molecular patterns (CAMPs), which belong to the broader category of damage-associated molecular patterns (DAMPs). CAMPs play a crucial role in recognizing pattern recognition receptors and orchestrating inflammatory responses. This review focuses into the realm of CAMPs, highlighting key players such as extracellular cold-inducible RNA-binding protein (eCIRP), high mobility group box 1 (HMGB1), cell-free DNA, neutrophil extracellular traps (NETs), histones, and extracellular RNA. These intrinsic molecules, often perceived as foreign, have the potential to trigger immune signaling pathways, thus contributing to NEC pathogenesis. In this review, we unravel the current understanding of the involvement of CAMPs in both preclinical and clinical NEC scenarios. We also focus on elucidating the downstream signaling pathways activated by these molecular patterns, providing insights into the mechanisms that drive inflammation in NEC. Moreover, we scrutinize the landscape of targeted therapeutic approaches, aiming to mitigate the impact of tissue damage in NEC. This in-depth exploration offers a comprehensive overview of the role of CAMPs in NEC, bridging the gap between preclinical and clinical insights.
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Affiliation(s)
- Colleen P. Nofi
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Jose M. Prince
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Ping Wang
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Monowar Aziz
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Elmezzi Graduate School of Molecular Medicine, Manhasset, NY, United States
- Department of Surgery, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
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Gu X, Chen Y, Cao K, Tu M, Liu W, Ju J. Therapeutic landscape in systemic lupus erythematosus: mtDNA activation of the cGAS-STING pathway. Int Immunopharmacol 2024; 133:112114. [PMID: 38652968 DOI: 10.1016/j.intimp.2024.112114] [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: 01/02/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Mitochondrial DNA (mtDNA) serves as a pivotal immune stimulus in the immune response. During stress, mitochondria release mtDNA into the cytoplasm, where it is recognized by the cytoplasmic DNA receptor cGAS. This activation initiates the cGAS-STING-IRF3 pathway, culminating in an inflammatory response. The cGAS-STING pathway has emerged as a critical mediator of inflammatory responses in microbial infections, stress, autoimmune diseases, chronic illnesses, and tissue injuries. Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by connective tissue involvement across various bodily systems. Its hallmark is the production of numerous autoantibodies, which prompt the immune system to target and damage the body's own tissues, resulting in organ and tissue damage. Increasing evidence implicates the cGAS-STING pathway as a significant contributor to SLE pathogenesis. This article aims to explore the role of the mtDNA-triggered cGAS-STING pathway and its mechanisms in SLE, with the goal of providing novel insights for clinical interventions.
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Affiliation(s)
- Xiaotian Gu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Yong Chen
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Kunyu Cao
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Miao Tu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Wan Liu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China.
| | - Jiyu Ju
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China.
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Shimizu J, Murao A, Lee Y, Aziz M, Wang P. Extracellular CIRP promotes Kupffer cell inflammatory polarization in sepsis. Front Immunol 2024; 15:1411930. [PMID: 38881891 PMCID: PMC11177612 DOI: 10.3389/fimmu.2024.1411930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 05/16/2024] [Indexed: 06/18/2024] Open
Abstract
Introduction Sepsis is a life-threatening inflammatory condition caused by dysregulated host responses to infection. Extracellular cold-inducible RNA-binding protein (eCIRP) is a recently discovered damage-associated molecular pattern that causes inflammation and organ injury in sepsis. Kupffer cells can be activated and polarized to the inflammatory M1 phenotype, contributing to tissue damage by producing proinflammatory mediators. We hypothesized that eCIRP promotes Kupffer cell M1 polarization in sepsis. Methods We stimulated Kupffer cells isolated from wild-type (WT) and TLR4-/- mice with recombinant mouse (rm) CIRP (i.e., eCIRP) and assessed supernatant IL-6 and TNFα levels by ELISA. The mRNA expression of iNOS and CD206 for M1 and M2 markers, respectively, was assessed by qPCR. We induced sepsis in WT and CIRP-/- mice by cecal ligation and puncture (CLP) and assessed iNOS and CD206 expression in Kupffer cells by flow cytometry. Results eCIRP dose- and time-dependently increased IL-6 and TNFα release from WT Kupffer cells. In TLR4-/- Kupffer cells, their increase after eCIRP stimulation was prevented. eCIRP significantly increased iNOS gene expression, while it did not alter CD206 expression in WT Kupffer cells. In TLR4-/- Kupffer cells, however, iNOS expression was significantly decreased compared with WT Kupffer cells after eCIRP stimulation. iNOS expression in Kupffer cells was significantly increased at 20 h after CLP in WT mice. In contrast, Kupffer cell iNOS expression in CIRP-/- mice was significantly decreased compared with WT mice after CLP. CD206 expression in Kupffer cells was not different across all groups. Kupffer cell M1/M2 ratio was significantly increased in WT septic mice, while it was significantly decreased in CIRP-/- mice compared to WT mice after CLP. Conclusion Our data have clearly shown that eCIRP induces Kupffer cell M1 polarization via TLR4 pathway in sepsis, resulting in overproduction of inflammatory cytokines. eCIRP could be a promising therapeutic target to attenuate inflammation by preventing Kupffer cell M1 polarization in sepsis.
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Affiliation(s)
- Junji Shimizu
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Atsushi Murao
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Yongchan Lee
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Monowar Aziz
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
| | - Ping Wang
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Departments of Surgery and Molecular Medicine, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
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Adachi S, Kirino Y, Higashitani K, Hirahara L, Maeda A, Horita N, Takase-Minegishi K, Yoshimi R, Nakajima H. Targeting enhanced cell death represents a potential therapeutic strategy for VEXAS syndrome. Rheumatol Adv Pract 2024; 8:rkae065. [PMID: 38854419 PMCID: PMC11157137 DOI: 10.1093/rap/rkae065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 05/08/2024] [Indexed: 06/11/2024] Open
Abstract
Objectives To unravel the mechanisms underlying cell death in the vacuoles, E1 enzyme, X-linked, autoinflammatory, somatic (VEXAS) syndrome using peripheral blood samples and to assess the clinical value of this knowledge. Methods Nine patients undergoing treatment for VEXAS syndrome at Yokohama City University Hospital were included in this study. Monocytes and neutrophils were isolated from peripheral blood and then monocytes were differentiated into polarized macrophages. Viable cell counts, cell death assays and measurements of various indicators such as high mobility group box 1 (HMGB1) concentration, extracellular adenosine triphosphate (ATP) concentration, annexin V level and caspase 1, 3 and 7 activities were performed. Results Elevated cell death of monocytes and neutrophils was observed in VEXAS syndrome patients, as indicated by cultured cell counts and cell death assays. Annexin V assays and measurements of caspase 1, 3 and 7 activities suggested increased apoptosis and pyroptosis in these cells. Serum HMGB1 levels were significantly elevated in VEXAS syndrome patients and decreased after prednisolone (PSL) dose escalation. Monocytes and neutrophils from the VEXAS group exhibited heightened extracellular ATP secretion, which was significantly reduced by soluble PSL co-culture. Conclusion This study confirms increased cell death of monocytes and neutrophils and damage-associated molecular patterns in VEXAS syndrome, and these findings may be valuable for drug screening, therapeutic strategies and as biomarkers.
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Affiliation(s)
- Soichiro Adachi
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Yohei Kirino
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Kana Higashitani
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Lisa Hirahara
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ayaka Maeda
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Nobuyuki Horita
- Chemotherapy Center, Yokohama City University Hospital, Yokohama, Japan
| | - Kaoru Takase-Minegishi
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Ryusuke Yoshimi
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Clinical Laboratory Department, Yokohama City University Hospital, Yokohama, Japan
| | - Hideaki Nakajima
- Department of Stem Cell and Immune Regulation, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Wu Y, Wang L, Li Y, Cao Y, Wang M, Deng Z, Kang H. Immunotherapy in the context of sepsis-induced immunological dysregulation. Front Immunol 2024; 15:1391395. [PMID: 38835773 PMCID: PMC11148279 DOI: 10.3389/fimmu.2024.1391395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 05/06/2024] [Indexed: 06/06/2024] Open
Abstract
Sepsis is a clinical syndrome caused by uncontrollable immune dysregulation triggered by pathogen infection, characterized by high incidence, mortality rates, and disease burden. Current treatments primarily focus on symptomatic relief, lacking specific therapeutic interventions. The core mechanism of sepsis is believed to be an imbalance in the host's immune response, characterized by early excessive inflammation followed by late immune suppression, triggered by pathogen invasion. This suggests that we can develop immunotherapeutic treatment strategies by targeting and modulating the components and immunological functions of the host's innate and adaptive immune systems. Therefore, this paper reviews the mechanisms of immune dysregulation in sepsis and, based on this foundation, discusses the current state of immunotherapy applications in sepsis animal models and clinical trials.
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Affiliation(s)
- Yiqi Wu
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Lu Wang
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yun Li
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yuan Cao
- Department of Emergency Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Min Wang
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- Graduate School of The People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Zihui Deng
- Department of Basic Medicine, Graduate School, Chinese PLA General Hospital, Beijing, China
| | - Hongjun Kang
- Department of Critical Care Medicine, The First Medical Center, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, China
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