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Noval Rivas M, Kocatürk B, Franklin BS, Arditi M. Platelets in Kawasaki disease: mediators of vascular inflammation. Nat Rev Rheumatol 2024; 20:459-472. [PMID: 38886559 DOI: 10.1038/s41584-024-01119-3] [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: 04/22/2024] [Indexed: 06/20/2024]
Abstract
Kawasaki disease, a systemic vasculitis that affects young children and can result in coronary artery aneurysms, is the leading cause of acquired heart disease among children. A hallmark of Kawasaki disease is increased blood platelet counts and platelet activation, which is associated with an increased risk of developing resistance to intravenous immunoglobulin and coronary artery aneurysms. Platelets and their releasate, including granules, microparticles, microRNAs and transcription factors, can influence innate immunity, enhance inflammation and contribute to vascular remodelling. Growing evidence indicates that platelets also interact with immune and non-immune cells to regulate inflammation. Platelets boost NLRP3 inflammasome activation and IL-1β production by human immune cells by releasing soluble mediators. Activated platelets form aggregates with leukocytes, such as monocytes and neutrophils, enhancing numerous functions of these cells and promoting thrombosis and inflammation. Leukocyte-platelet aggregates are increased in children with Kawasaki disease during the acute phase of the disease and can be used as biomarkers for disease severity. Here we review the role of platelets in Kawasaki disease and discuss progress in understanding the immune-effector role of platelets in amplifying inflammation related to Kawasaki disease vasculitis and therapeutic strategies targeting platelets or platelet-derived molecules.
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Affiliation(s)
- Magali Noval Rivas
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Guerin Children's, Cedars Sinai Medical Center, Los Angeles, CA, USA
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Begüm Kocatürk
- Department of Basic Oncology, Hacettepe University Cancer Institute, Ankara, Turkey
| | - Bernardo S Franklin
- Institute of Innate Immunity, Medical Faculty, University of Bonn, Bonn, Germany
| | - Moshe Arditi
- Department of Pediatrics, Division of Pediatric Infectious Diseases, Guerin Children's, Cedars Sinai Medical Center, Los Angeles, CA, USA.
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Liu S, Zhao Y, Li S, Li Y, Liu L, Sheng J, Tian Y, Gao X. Network pharmacology combined with an animal model to reveal the material basis and mechanism of Amomum villosum in alleviating constipation in mice. Gene 2024; 897:148064. [PMID: 38065427 DOI: 10.1016/j.gene.2023.148064] [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: 10/13/2023] [Revised: 11/21/2023] [Accepted: 12/04/2023] [Indexed: 01/17/2024]
Abstract
Constipation is a prevalent gastrointestinal disorder, with its prevalence showing an annual upward trend. There are many factors involved in the occurrence of constipation, such as abnormal smooth muscle contraction and disorders of gastrointestinal hormone secretion. Amomum villosum (A. villosum) has been proven to be effective in improving digestive system diseases, but there is no report on improving constipation. Therefore, we used network pharmacology prediction combined with animal experiments to explore the key active components of A. villosum and their pharmacological mechanisms. The results of network pharmacological prediction showed that β-sitosterol was the key laxative compound of A. villosum, which may play a laxative role by activating the adrenoceptor alpha 1 A-myosin light chain (ADRA1A-MLC) pathway. Further animal experiments showed that β-sitosterol could significantly shorten the time to first black stool; increase faecal weight, faecal number, and faecal water content; and promote gastrointestinal motility. β-sitosterol may promote intestinal motility by upregulating the expression of ADRA1A and myosin light chain 9 (Myl9) mRNA and protein in the colon, thereby activating the ADRA1A-MLC signalling pathway. In addition, it is possible to improve constipation symptoms by regulating serum neurotransmitters and gastrointestinal motility-related factors, such as the serum content of 5-hydroxytryptamine (5-HT) and acetylcholinesterase (AchE) and the mRNA expression of 5-hydroxytryptamine receptor 4 (5-HT4), stem cell factor (SCF), stem cell factor receptor (c-Kit) and smooth muscle myosin light chain kinase (smMLCK) in the colon. These results lay a foundation for the application of A. villosum and β-sitosterol in constipation.
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Affiliation(s)
- Shuangfeng Liu
- Yunnan Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Yan Zhao
- Division of Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Sijin Li
- College of Tea (Pu'er), West Yunnan University of Applied Sciences, Puer 665099, China
| | - Yanan Li
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Li Liu
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Jun Sheng
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Yang Tian
- Yunnan Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China; Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China.
| | - Xiaoyu Gao
- Yunnan Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China; College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China; Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China.
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Chen Y, Lan C, Zhong W, Song K, Ma Z, Huang L, Zhu Y, Xia H. Plasma anti-myosin autoantibodies in the diagnosis of necrotizing enterocolitis. Eur J Pediatr 2023; 182:5203-5210. [PMID: 37715022 PMCID: PMC10640473 DOI: 10.1007/s00431-023-05188-6] [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: 06/10/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/17/2023]
Abstract
We aimed to assess whether autoantibodies can be used as biomarkers for necrotizing enterocolitis (NEC) and applied for its early diagnosis. A prospective observational study was conducted in neonates with suspected NEC abdominal distension (the developmental study), which consisted of 50 neonates finally divided into NEC (n = 24) and non-NEC (n = 26) cohorts based on follow-up results. Serum samples were collected within 48 h of illness onset and used for screening NEC-associated plasma autoantibodies by autoantigen microarray. Additionally, we validated anti-myosin autoantibodies by enzyme-linked immunosorbent assay (ELISA) in an independent validation study, for which we selected plasma samples within 48 h of onset of NEC (n = 38) and samples of gestational age- and weight-matched controls (n = 13). Autoantigen microarray revealed that both IgG and IgM anti-myosin autoantibodies in plasma from neonates with NEC were significantly higher than those in neonates with other diagnoses. ELISA showed that plasma anti-myosin autoantibodies increased in the NEC cohort, with 1.5-fold higher levels than in the non-NEC cohort. Anti-myosin autoantibodies were able to distinguish NEC from non-NEC, achieving an area under the curve (AUC) of 0.8856 (95% confidence interval (CI): 0.7918-0.9795), with sensitivity of 81.58% and specificity of 76.93%. Plasma anti-myosin autoantibodies were significantly higher in all three subtypes of NEC (P < 0.0001 for NEC I; P = 0.0018 for NEC II; P = 0.0011 for NEC III), especially in NEC stage I than that in the non-NEC controls. CONCLUSION Anti-myosin autoantibodies may be applied as a promising diagnostic marker for NEC, especially for NEC stage I. WHAT IS KNOWN • Intestinal damage and self-antigen exposure may lead to increased autoantibodies, and they are widely used as biomarkers for diagnosing inflammatory bowel disease. • Necrotizing enterocolitis (NEC) is a devastating disease with overwhelming inflammation and immune dysregulation. WHAT IS NEW • Increased autoantibodies were present in patients with NEC, even before typical X-ray manifestations. • Anti-myosin autoantibodies may be applied as a promising diagnostic marker for NEC.
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Affiliation(s)
- Yuqiong Chen
- Department of Pediatrics, The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Tianhe District, Guangzhou, Guangdong, CN 510630, China
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
- Department of Pediatrics, The First People's Hospital of Chenzhou, Chenzhou, Hunan, China
| | - Chaoting Lan
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Weiyong Zhong
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Kai Song
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Zuyi Ma
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China
| | - Lihua Huang
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China.
| | - Yun Zhu
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China.
| | - Huimin Xia
- Department of Pediatrics, The First Affiliated Hospital of Jinan University, No. 613 West Huangpu Avenue, Tianhe District, Guangzhou, Guangdong, CN 510630, China.
- Provincial Key Laboratory of Research in Structure Birth Defect Diseaseand, Department of Pediatric Surgery, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, No.9 Jinsui Road, Zhujiang New Town, Tianhe District, Guangzhou, Guangdong, CN 510623, China.
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