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Wang Y, Liu Y, Wang N, Liu Z, Qian G, Li X, Huang H, Zhuo W, Xu L, Zhang J, Lv H, Gao Y. Identification of novel mitophagy-related biomarkers for Kawasaki disease by integrated bioinformatics and machine-learning algorithms. Transl Pediatr 2024; 13:1439-1456. [PMID: 39263286 PMCID: PMC11384439 DOI: 10.21037/tp-24-230] [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: 06/14/2024] [Accepted: 08/06/2024] [Indexed: 09/13/2024] Open
Abstract
Background Kawasaki disease (KD) is a systemic vasculitis primarily affecting the coronary arteries in children. Despite growing attention to its symptoms and pathogenesis, the exact mechanisms of KD remain unclear. Mitophagy plays a critical role in inflammation regulation, however, its significance in KD has only been minimally explored. This study sought to identify crucial mitophagy-related biomarkers and their mechanisms in KD, focusing on their association with immune cells in peripheral blood. Methods This research used four datasets from the Gene Expression Omnibus (GEO) database that were categorized as the merged and validation datasets. Screening for differentially expressed mitophagy-related genes (DE-MRGs) was conducted, followed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. A weighted gene co-expression network analysis (WGCNA) identified the hub module, while machine-learning algorithms [random forest-recursive feature elimination (RF-RFE) and support vector machine-recursive feature elimination (SVM-RFE)] pinpointed the hub genes. Receiver operating characteristic (ROC) curves were generated for these genes. Additionally, the CIBERSORT algorithm was used to assess the infiltration of 22 immune cell types to explore their correlations with hub genes. Interactions between transcription factors (TFs), genes, and Gene-microRNAs (miRNAs) of hub genes were mapped using the NetworkAnalyst platform. The expression difference of the hub genes was validated using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Results Initially, 306 DE-MRGs were identified between the KD patients and healthy controls. The enrichment analysis linked these MRGs to autophagy, mitochondrial function, and inflammation. The WGCNA revealed a hub module of 47 KD-associated DE-MRGs. The machine-learning algorithms identified cytoskeleton-associated protein 4 (CKAP4) and serine-arginine protein kinase 1 (SRPK1) as critical hub genes. In the merged dataset, the area under the curve (AUC) values for CKAP4 and SRPK1 were 0.933 [95% confidence interval (CI): 0.901 to 0.964] and 0.936 (95% CI: 0.906 to 0.966), respectively, indicating high diagnostic potential. The validation dataset results corroborated these findings with AUC values of 0.872 (95% CI: 0.741 to 1.000) for CKAP4 and 0.878 (95% CI: 0.750 to 1.000) for SRPK1. The CIBERSORT analysis connected CKAP4 and SRPK1 with specific immune cells, including activated cluster of differentiation 4 (CD4) memory T cells. TFs such as MAZ, SAP30, PHF8, KDM5B, miRNAs like hsa-mir-7-5p play essential roles in regulating these hub genes. The qRT-PCR results confirmed the differential expression of these genes between the KD patients and healthy controls. Conclusions CKAP4 and SRPK1 emerged as promising diagnostic biomarkers for KD. These genes potentially influence the progression of KD through mitophagy regulation.
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Affiliation(s)
- Yan Wang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
- Department of Cardiology, The Affiliated Xuzhou Children's Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ying Liu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Nana Wang
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Zhiheng Liu
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Guanghui Qian
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Xuan Li
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Hongbiao Huang
- Department of Pediatrics, Fujian Provincial Hospital, Fujian Provincial Clinical College of Fujian Medical University, Fuzhou, China
| | - Wenyu Zhuo
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Lei Xu
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Jiaying Zhang
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Haitao Lv
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Yang Gao
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
- Department of Pediatrics, The First People's Hospital of Lianyungang, Xuzhou Medical University Affiliated Hospital of Lianyungang (Lianyungang Clinical College of Nanjing Medical University), Lianyungang, China
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Wang C, Zhang H, Zhang J, Hong Z, Miao C, Wang T, Lin H, Li Y, Liu G. Mycoplasma pneumoniae-induced Kawasaki disease via PINK1/Parkin-mediated mitophagy. Exp Cell Res 2024; 441:114182. [PMID: 39094903 DOI: 10.1016/j.yexcr.2024.114182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/22/2024] [Accepted: 07/22/2024] [Indexed: 08/04/2024]
Abstract
Kawasaki disease (KD) is a systemic vasculitis with an unknown cause that primarily affects children. The objective of this study was to explore the function and underlying mechanism of mitophagy in Mycoplasma pneumoniae (MP)-induced KD. To create MP-induced KD models, Human coronary endothelial cells (HCAECs) and DBA/2 mice were employed and treated with Mp-Lipid-associated membrane proteins (LAMPs). Lactate dehydrogenase (LDH) levels were tested to determine cellular damage or death. The inflammatory cytokines tumor necrosis factor (TNF)--α and interleukin (IL)-6 were measured using the Enzyme-Linked Immunosorbent Assay (ELISA) method. RT-qPCR and Western blotting were used to determine the expression of Intercellular Adhesion Molecule(ICAM)-1, vascular cell adhesion molecule (VCAM)-1, inducible nitric oxide synthase(iNOS), LC3, p62, PINK1(a mitochondrial serine/threonine-protein kinase), and PARKIN(a cytosolic E3-ubiquitin ligase). The adenosine triphosphate (ATP), reactive oxygen species (ROS), and mitochondrial membrane potential(MMP) levels were measured to determine mitochondrial function. Mitophagy was investigated using immunofluorescence and a mitophagy detection test. Autophagosome and mitochondrial morphology were examined using transmission electron microscopy. To identify inflammatory cell infiltration, hematoxylin and eosin staining was utilized. Mp-LAMPs increased the levels of TNF-α, IL-6, ICAM-1, VCAM-1, and iNOS in an HCAEC cell model, along with LDH release. After Mp-LAMPs exposure, there was a rise in LC3 and a reduction in p62. Meanwhile, the expression of PINK1 and Parkin was increased. Cyclosporin A dramatically increased ATP synthesis and MMP in HCAEC cells treated with Mp-LAMPs, while suppressing ROS generation, demonstrating excessive mitophagy-related mitochondrial dysfunction. Additionally, neither body weight nor artery tissue were affected due to PINK1 and Parkin suppression Cyclosporin A in Mp-LAMPs-treated mice. These findings indicated that PINK1/Parkin-mediated mitophagy inhibition may be a therapeutic target for MP-induced KD.
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Affiliation(s)
- Chengyi Wang
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China; Department of Pediatrics, Fujian Children's Hospital(Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China; College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, Fuzhou 350001, PR China
| | - Huijie Zhang
- Department of Pediatrics, Fujian Children's Hospital(Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China; College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, Fuzhou 350001, PR China
| | - Jinyan Zhang
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China
| | - Zesheng Hong
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China
| | - Chong Miao
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, Fuzhou 350001, PR China
| | - Tengyang Wang
- Department of Pediatrics, Fujian Children's Hospital(Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China
| | - Han Lin
- Department of Pediatrics, Fujian Children's Hospital(Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China
| | - Yinglin Li
- Pediatric Intensive Care Unit, The Affiliated Hospital(Group) of Putian University, Putian 351100, PR China.
| | - Guanghua Liu
- Department of Pediatrics, Fujian Children's Hospital(Fujian Branch of Shanghai Children's Medical Center), College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, PR China; College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, Fuzhou 350001, PR China.
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Zhou Y, Wu Y, Yuan C, Yin W, Wang B, Ding Y. The expression of autophagy markers in IVIG-resistant Kawasaki disease and the establishment of prediction model. BMC Pediatr 2023; 23:642. [PMID: 38114939 PMCID: PMC10729374 DOI: 10.1186/s12887-023-04386-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 10/26/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND The aim of this study was to find early predictors of Intravenous Immunoglobulin (IVIG)-Resistant Kawasaki Disease. METHODS Patients diagnosed with Kawasaki disease were enrolled in this study. Univariate analysis and multiple logistic regression were used to analyze the clinical characteristics and laboratory findings of patients in both groups before IVIG treatment. Independent predictors of Intravenous Immunoglobulin-Resistant Kawasaki Disease were analyzed, and a prediction model for children with Intravenous Immunoglobulin-Resistant Kawasaki Disease was constructed. RESULTS A total of 108 children (67 males and 41 females) with IVIG-sensitive Kawasaki disease and 31 children (20 males and 11 females) with IVIG-resistant Kawasaki disease participated in this study. Compared with the IVIG-sensitive group, the duration of hospitalization, ALT, AST, GLB, r-GT, IgG, PCT, and ESR was elevated in the IVIG-resistant KD group, and ATG16L1, LC3II, BECN1, RBC, HGB, ALB, A/G, and CK were significantly lower (P < 0.05). mRNA expression of ESR, BECN1, and LC3II were independent risk factors for IVIG-resistant Kawasaki disease. A logistic regression model and scoring system were established, and the cut-off values of independent risk factors were derived from ROC curves: ESR ≥ 79.5 mm/h, BECN1 ≤ 0.645, LC3II ≤ 0.481. A new scoring system was established according to the respective regression coefficients as follows: ESR ≥ 79.5 mm/h (1 point), BECN1 ≤ 0.645 (1 point). LC3II ≤ 0.481 (2 points), 0-1 as low risk for IVIG non-response, and ≥ 2 as high risk. Applied to this group of study subjects, the sensitivity was 87.10%, specificity 83.33%, Youden index 0.70, AUC 0.9. CONCLUSIONS Autophagy markers ATG16L1, BECN1, and LC3II are down-regulated in the expression of IVIG -resistant KD. ESR, BECN1, and LC3II mRNAs are independent risk factors for IVIG-resistant KD and may be involved in the development of IVIG-resistant KD. This study established a new model that can be used to predict IVIG-resistant KD, and future validation in a larger population is needed.
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Affiliation(s)
- Yang Zhou
- Department of Immunology and Infectious Diseases, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, China
| | - Yali Wu
- Department of Immunology and Infectious Diseases, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, China
| | - Chunhui Yuan
- Department of Laboratory Medicine, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, China
| | - Wei Yin
- Department of Immunology and Infectious Diseases, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, China
| | - Baoxiang Wang
- Department of Digestive System, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, China.
| | - Yan Ding
- Department of Immunology and Infectious Diseases, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430016, China.
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Atici AE, Crother TR, Noval Rivas M. Mitochondrial quality control in health and cardiovascular diseases. Front Cell Dev Biol 2023; 11:1290046. [PMID: 38020895 PMCID: PMC10657886 DOI: 10.3389/fcell.2023.1290046] [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: 09/06/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Cardiovascular diseases (CVDs) are one of the primary causes of mortality worldwide. An optimal mitochondrial function is central to supplying tissues with high energy demand, such as the cardiovascular system. In addition to producing ATP as a power source, mitochondria are also heavily involved in adaptation to environmental stress and fine-tuning tissue functions. Mitochondrial quality control (MQC) through fission, fusion, mitophagy, and biogenesis ensures the clearance of dysfunctional mitochondria and preserves mitochondrial homeostasis in cardiovascular tissues. Furthermore, mitochondria generate reactive oxygen species (ROS), which trigger the production of pro-inflammatory cytokines and regulate cell survival. Mitochondrial dysfunction has been implicated in multiple CVDs, including ischemia-reperfusion (I/R), atherosclerosis, heart failure, cardiac hypertrophy, hypertension, diabetic and genetic cardiomyopathies, and Kawasaki Disease (KD). Thus, MQC is pivotal in promoting cardiovascular health. Here, we outline the mechanisms of MQC and discuss the current literature on mitochondrial adaptation in CVDs.
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Affiliation(s)
- Asli E. Atici
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Timothy R. Crother
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
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Nadig PL, Joshi V, Pilania RK, Kumrah R, Kabeerdoss J, Sharma S, Suri D, Rawat A, Singh S. Intravenous Immunoglobulin in Kawasaki Disease-Evolution and Pathogenic Mechanisms. Diagnostics (Basel) 2023; 13:2338. [PMID: 37510082 PMCID: PMC10378342 DOI: 10.3390/diagnostics13142338] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/28/2023] [Accepted: 07/06/2023] [Indexed: 07/30/2023] Open
Abstract
Kawasaki disease (KD) is an acute vasculitis of childhood that affects the medium vessels with a special predilection to the involvement of coronary arteries. The major morbidity of this disease is due to coronary artery aneurysm, which occurs in about 25-30% of untreated cases. For decades now, intravenous immunoglobulin (IVIg) has consistently been shown to reduce the risk of CAAs to less than 5%. However, the mechanism of immunomodulation remains unclear. Several studies on the role of IVIg in the modulation of toll-like receptor pathways, autophagy, and apoptosis of the mononuclear phagocytic system, neutrophil extracellular trap, and dendritic cell modulation suggest a modulatory effect on the innate immune system. Similarly, certain studies have shown its effect on T-cell differentiation, cytokine release, and regulatory T-cell function. In this review, we discuss the potential mechanisms underlying the immunomodulatory actions of IVIg in patients with Kawasaki disease. Furthermore, we provide a summary of the evidence regarding various infusion protocols and dosages utilized in the treatment of KD patients.
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Affiliation(s)
- Pallavi L Nadig
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Vibhu Joshi
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Rakesh Kumar Pilania
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Rajni Kumrah
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Jayakanthan Kabeerdoss
- Pediatric Biochemistry Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Saniya Sharma
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Deepti Suri
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
| | - Surjit Singh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education & Research, Chandigarh 160012, India
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Zhu H, Xu B, Hu C, Li A, Liao Q. Identification and validation of autophagy-related genes in Kawasaki disease. Hereditas 2023; 160:17. [PMID: 37085930 PMCID: PMC10120123 DOI: 10.1186/s41065-023-00278-9] [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: 11/02/2022] [Accepted: 04/03/2023] [Indexed: 04/23/2023] Open
Abstract
BACKGROUND Kawasaki disease (KD) is a systemic vasculitis of unknown etiology affecting mainly children. Studies have shown that the pathogenesis of KD may be related to autophagy. Using bioinformatics analysis, we assessed the significance of autophagy-related genes (ARGs) in KD. METHODS Common ARGs were identified from the GeneCards Database, the Molecular Signatures Database (MSigDB), and the Gene Expression Omnibus (GEO) database. ARGs were analyzed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis and protein-protein interaction (PPI) network analysis. Furthermore, related microRNAs (miRNAs), transcription factors (TFs), and drug interaction network were predicted. The immune cell infiltration of ARGs in tissues was explored. Finally, we used receiver operating characteristic (ROC) curves and quantitative real-time PCR (qRT-PCR) to validate the diagnostic value and expression levels of ARGs in KD. RESULTS There were 20 ARGs in total. GO analysis showed that ARGs were mainly rich in autophagy, macro-autophagy, and GTPase activity. KEGG analysis showed that ARGs were mainly rich in autophagy-animal and the collecting duct acid secretion pathway. The expression of WIPI1, WDFY3, ATP6V0E2, RALB, ATP6V1C1, GBA, C9orf72, LRRK2, GNAI3, and PIK3CB is the focus of PPI network. A total of 72 related miRNAs and 130 related TFs were predicted by miRNA and TF targeting network analyses. Ten pairs of gene-drug interaction networks were also predicted; immune infiltration analysis showed that SH3GLB1, ATP6V0E2, PLEKHF1, RALB, KLHL3, and TSPO were closely related to CD8 + T cells and neutrophils. The ROC curve showed that ARGs had good diagnostic value in KD. qRT-PCR showed that WIPI1 and GBA were significantly upregulated. CONCLUSION Twenty potential ARGs were identified by bioinformatics analysis, and WIPI1 and GBA may be used as potential drug targets and biomarkers.
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Affiliation(s)
- Hao Zhu
- Department of Pediatrics, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China
- Department of Pediatrics, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, China
| | - Biao Xu
- Department of Pediatrics, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, China
| | - Cunshu Hu
- XianNing Public Inspection and Testing Cente, Xianning, China
| | - Aimin Li
- Department of Pediatrics, Jingzhou Hospital Affiliated to Yangtze University, Jingzhou, China.
| | - Qing Liao
- Department of Pediatrics, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, China.
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Beckley MA, Shrestha S, Singh KK, Portman MA. The role of mitochondria in the pathogenesis of Kawasaki disease. Front Immunol 2022; 13:1017401. [PMID: 36300112 PMCID: PMC9592088 DOI: 10.3389/fimmu.2022.1017401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/20/2022] [Indexed: 11/28/2022] Open
Abstract
Kawasaki disease is a systemic vasculitis, especially of the coronary arteries, affecting children. Despite extensive research, much is still unknown about the principal driver behind the amplified inflammatory response. We propose mitochondria may play a critical role. Mitochondria serve as a central hub, influencing energy generation, cell proliferation, and bioenergetics. Regulation of these biological processes, however, comes at a price. Release of mitochondrial DNA into the cytoplasm acts as damage-associated molecular patterns, initiating the development of inflammation. As a source of reactive oxygen species, they facilitate activation of the NLRP3 inflammasome. Kawasaki disease involves many of these inflammatory pathways. Progressive mitochondrial dysfunction alters the activity of immune cells and may play a role in the pathogenesis of Kawasaki disease. Because they contain their own genome, mitochondria are susceptible to mutation which can propagate their dysfunction and immunostimulatory potential. Population-specific variants in mitochondrial DNA have also been linked to racial disparities in disease risk and treatment response. Our objective is to critically examine the current literature of mitochondria’s role in coordinating proinflammatory signaling pathways, focusing on potential mitochondrial dysfunction in Kawasaki disease. No association between impaired mitochondrial function and Kawasaki disease exists, but we suggest a relationship between the two. We hypothesize a framework of mitochondrial determinants that may contribute to ethnic/racial disparities in the progression of Kawasaki disease.
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Affiliation(s)
- Mikayla A. Beckley
- Center for Integrative Brain Research, Seattle Children’s Research Institute, Seattle, WA, United States
- *Correspondence: Mikayla A. Beckley,
| | - Sadeep Shrestha
- Department of Epidemiology, School of Public Health University of Alabama at Birmingham, Birmingham, AL, United States
| | - Keshav K. Singh
- Department of Genetics, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Michael A. Portman
- Center for Integrative Brain Research, Seattle Children’s Research Institute, Seattle, WA, United States
- Department of Pediatrics, Division of Cardiology, University of Washington, Seattle, WA, United States
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Qin J, Zheng Y, Ding Y, Huang C, Hou M, Li M, Qian G, Lv H. Co-culture of peripheral blood mononuclear cell (PBMC) and human coronary artery endothelial cell (HCAEC) reveals the important role of autophagy implicated in Kawasaki disease. Transl Pediatr 2021; 10:3140-3150. [PMID: 35070827 PMCID: PMC8753476 DOI: 10.21037/tp-21-344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/25/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Kawasaki disease (KD) is a systemic vasculitis syndrome that commonly occurs in children. Autophagy has been increasingly shown to be involved in various cardiovascular diseases, including endothelial dysfunction and vascular endothelial injury. However, whether autophagy is implicated in the pathogenesis of KD remains poorly understood, and particularly, how the dysfunction of human coronary artery endothelial cells (HCAECs) is associated with autophagy in peripheral blood mononuclear cells (PBMCs) from KD patients awaits further investigation. METHODS Peripheral blood samples were collected from KD patients, common fever patients, and healthy controls. The PBMC samples were isolated from KD blood samples collected at three different phases: the acute phase before therapy (acute-KD), 1 week (subacute-KD), and 4 weeks (convalescent-KD) after drug administration. RESULTS The autophagy flux was significantly increased in the PBMCs of KD patients at acute phase. The PBMCs of acute KD patients could induce autophagy in HCAECs and promote the secretion of chemokines and pro-inflammatory factors after cocultured with HCAECs whereas 3-methyladenine (3-MA) drug could partly reverse this process. CONCLUSIONS Autophagy is involved in the inflammatory injury of vascular endothelial cells associated with PBMCs in KD patients, and may play a crucial role in regulating inflammation. Hence, we identify a novel regulatory mechanism of vascular injury in this disease.
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Affiliation(s)
- Jie Qin
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China.,Department of Pediatrics, The First People's Hospital of Yan Cheng, Yancheng, China
| | - Yiming Zheng
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Yueyue Ding
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Chengcheng Huang
- Department of Pediatrics, Yi Ji Shan Hospital, Wan Nan Medical College, Wuhu, China
| | - Miao Hou
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
| | - Mei Li
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Guanghui Qian
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China.,Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, China
| | - Haitao Lv
- Department of Cardiology, Children's Hospital of Soochow University, Suzhou, China
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