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Yaghoobi A, Rezaee M, Hedayati N, Keshavarzmotamed A, Khalilzad MA, Russel R, Asemi Z, Rajabi Moghadam H, Mafi A. Insight into the cardioprotective effects of melatonin: shining a spotlight on intercellular Sirt signaling communication. Mol Cell Biochem 2024:10.1007/s11010-024-05002-3. [PMID: 38980593 DOI: 10.1007/s11010-024-05002-3] [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: 11/30/2023] [Accepted: 03/25/2024] [Indexed: 07/10/2024]
Abstract
Cardiovascular diseases (CVDs) are the leading causes of death and illness worldwide. While there have been advancements in the treatment of CVDs using medication and medical procedures, these conventional methods have limited effectiveness in halting the progression of heart diseases to complete heart failure. However, in recent years, the hormone melatonin has shown promise as a protective agent for the heart. Melatonin, which is secreted by the pineal gland and regulates our sleep-wake cycle, plays a role in various biological processes including oxidative stress, mitochondrial function, and cell death. The Sirtuin (Sirt) family of proteins has gained attention for their involvement in many cellular functions related to heart health. It has been well established that melatonin activates the Sirt signaling pathways, leading to several beneficial effects on the heart. These include preserving mitochondrial function, reducing oxidative stress, decreasing inflammation, preventing cell death, and regulating autophagy in cardiac cells. Therefore, melatonin could play crucial roles in ameliorating various cardiovascular pathologies, such as sepsis, drug toxicity-induced myocardial injury, myocardial ischemia-reperfusion injury, hypertension, heart failure, and diabetic cardiomyopathy. These effects may be partly attributed to the modulation of different Sirt family members by melatonin. This review summarizes the existing body of literature highlighting the cardioprotective effects of melatonin, specifically the ones including modulation of Sirt signaling pathways. Also, we discuss the potential use of melatonin-Sirt interactions as a forthcoming therapeutic target for managing and preventing CVDs.
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Affiliation(s)
- Alireza Yaghoobi
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Malihe Rezaee
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran
| | | | | | - Reitel Russel
- Department of Cell Systems and Anatomy, UT Health. Long School of Medicine, San Antonio, TX, USA.
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
| | - Hasan Rajabi Moghadam
- Department of Cardiology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
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Wu S, Ren X, Zhuang Y, Shen C, Zhu H, Cao Y, Zhang X, Chen G. Peripheral Lymphocyte Changes Associate With the Progression of Necrotizing Enterocolitis in Infants. J Surg Res 2024; 301:215-223. [PMID: 38959630 DOI: 10.1016/j.jss.2024.04.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 07/05/2024]
Abstract
INTRODUCTION Immune factors are important antecedents in the pathophysiology of necrotizing enterocolitis (NEC). However, studies on the peripheral blood lymphocyte subsets changes in NEC patients among different Bell stages and in patients requiring surgery are scarce. METHODS 34 infants with NEC and 33 age-matched controls were included. Peripheral blood was collected within 48 h after NEC diagnosis. Peripheral blood B and T lymphocytes subsets were detected by 12-color flow cytometry. Cell ratios were calculated, and their relationship to disease severity and their roles as indicators for surgery were assessed. RESULTS NEC patients showed elevated percentages of unSwB cells (CD27+IgD+ unswitched memory/activated B cells)/B cells, SwB cells (CD27+IgD-switched memory B cells)/B cells, CD8+ T (CD3+CD8+ T cells)/T cells, Tem (CD45RA-CCR7-effector memory T cells)/CD4+ T cells, Tem/CD8+ T cells and decreased Bn (CD27-IgD+ naïve B cells)/B cells, CD4+T (CD3+CD4+ T cells)/T cells, CD45RA+ CCR7+ naïve T cells (CD45RA+CCR7+ naïve T cells)/CD8+T cells. Compared to NEC patients at BELL stage I + II, patients at BELL stage III showed increased percentages of SwB cells/B cells, antibody secreting cell (ASC, CD3-CD20-CD27high CD38high ASCs)/B cells and Tem/CD4+ T cells, and decreased percentages of CD45RA+CCR7+ naïve T cells/CD4+ T cells. The Receiver Operating Characteristic Curve analysis showed that the sensitivity of ASC/B cells ratio (0.52%) is 86.67% and the specificity of Tem/CD4+T ratio (5.22%) is 100%, indicating that NEC patients required surgery. CONCLUSIONS The severity of NEC exhibits codirectional changes with the maturation of B and T lymphocytes, especially CD4+ T cells. The increased ASC/B and Tem/CD4+ T cells could serve as potential indicators for NEC patients requiring surgery.
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Affiliation(s)
- Shaojing Wu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Xue Ren
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Yuxiu Zhuang
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Chun Shen
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Haitao Zhu
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Yun Cao
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China
| | - Xiaoming Zhang
- Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China.
| | - Gong Chen
- Department of Pediatric Surgery, Children's Hospital of Fudan University, Shanghai Key Laboratory of Birth Defect, Shanghai, China.
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Qiu CW, Richmond M, Ma Y, Zhang S, Liu W, Feng X, Ahmed IM, Wu F. Melatonin enhances cadmium tolerance in rice via long non-coding RNA-mediated modulation of cell wall and photosynthesis. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133251. [PMID: 38141306 DOI: 10.1016/j.jhazmat.2023.133251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/28/2023] [Accepted: 12/11/2023] [Indexed: 12/25/2023]
Abstract
In plants, melatonin (MLT) is a versatile signaling molecule involved in promoting plant development and mitigating the damage caused by heavy metal exposure. Long non-coding RNAs (lncRNAs) are essential components in the plant's response to various abiotic stress, functioning within the gene regulatory network. Here, a hydroponic experiment was performed to explore the involvement of lncRNAs in MLT-mediated amelioration of cadmium (Cd) toxicity in rice plants. The results demonstrated that applying 250 mg L-1 MLT in a solution containing 10 μM Cd leads to an effective reduction of 30.0% in shoot Cd concentration. Remarkably, the treatment resulted in a 21.2% improvement in potassium and calcium uptake, a 164.5% enhancement in net photosynthetic rate, and a 33.2% decrease in malondialdehyde accumulation, resulting increases in plant height, root length, and biomass accumulation. Moreover, a transcriptome analysis revealed 2510 differentially expressed transcripts, including the Cd transporters (-3.82-fold downregulated) and the Cd tolerance-associated genes (1.24-fold upregulated). Notably, regulatory network prediction uncovered 6 differentially expressed lncRNAs that act as competitive endogenous RNA or in RNA complex interactions. These key lncRNAs regulate the expression of target genes that are involved in pectin and cellulose metabolism, scavenging of reactive oxygen species, salicylic acid-mediated defense response, and biosynthesis of brassinosteroids, which ultimately modify the cell wall for Cd adsorption, safeguard photosynthesis, and control hormone signaling to reduce Cd toxicity. Our results unveiled a crucial lncRNA-mediated mechanism underlying MLT's role in Cd detoxification in rice plants, providing potential applications in agricultural practices and environmental remediation.
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Affiliation(s)
- Cheng-Wei Qiu
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Marvin Richmond
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China
| | - Yue Ma
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China
| | - Shuo Zhang
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China; Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops, Yangzhou University, Yangzhou 225009, China
| | - Wenxing Liu
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China; College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Xue Feng
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China; College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China
| | - Imrul Mosaddek Ahmed
- Plant Biotechnology Laboratory, Center for Viticulture & Small Fruit Research, Florida A&M University, FL 32317, USA
| | - Feibo Wu
- Department of Agronomy, College of Agriculture and Biotechnology, Zijingang Campus, Zhejiang University, Hangzhou 310058, China.
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Kolba N, Tako E. Effective alternatives for dietary interventions for necrotizing enterocolitis: a systematic review of in vivo studies. Crit Rev Food Sci Nutr 2023:1-21. [PMID: 37971890 DOI: 10.1080/10408398.2023.2281623] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Necrotizing enterocolitis (NEC) is a significant cause of morbidity and mortality among neonates and low birth weight children in the United States. Current treatment options, such as antibiotics and intestinal resections, often result in complications related to pediatric nutrition and development. This systematic review aimed to identify alternative dietary bioactive compounds that have shown promising outcomes in ameliorating NEC in vivo studies conducted within the past six years. Following PRISMA guidelines and registering in PROSPERO (CRD42023330617), we conducted a comprehensive search of PubMed, Scopus, and Web of Science. Our analysis included 19 studies, predominantly involving in vivo models of rats (Rattus norvegicus) and mice (Mus musculus). The findings revealed that various types of compounds have demonstrated successful amelioration of NEC symptoms. Specifically, six studies employed plant phenolics, seven utilized plant metabolites/cytotoxic chemicals, three explored the efficacy of vitamins, and three investigated the potential of whole food extracts. Importantly, all administered compounds exhibited positive effects in mitigating the disease. These results highlight the potential of natural cytotoxic chemicals derived from medicinal plants in identifying and implementing powerful alternative drugs and therapies for NEC. Such approaches have the capacity to impact multiple pathways involved in the development and progression of NEC symptoms.
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Affiliation(s)
- Nikolai Kolba
- Department of Food Science, Cornell University, Ithaca, New York, USA
| | - Elad Tako
- Department of Food Science, Cornell University, Ithaca, New York, USA
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Li X, Wang F, Gao Z, Huang W, Zhang X, Liu F, Yi H, Guan J, Wu X, Xu H, Yin S. Melatonin attenuates chronic intermittent hypoxia-induced intestinal barrier dysfunction in mice. Microbiol Res 2023; 276:127480. [PMID: 37659335 DOI: 10.1016/j.micres.2023.127480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/28/2023] [Accepted: 08/17/2023] [Indexed: 09/04/2023]
Abstract
BACKGROUND AND PURPOSE Chronic intermittent hypoxia (CIH) triggers subclinical intestinal barrier disruption prior to systemic low-grade inflammation. Increasing evidence suggests therapeutic effects of melatonin on systemic inflammation and gut microbiota remodelling. However, whether and how melatonin alleviates CIH-induced intestinal barrier dysfunction remains unclear. EXPERIMENTAL APPROACH C57BL/6 J mice and Caco-2 cell line were treated. We evaluated gut barrier function spectrophotometrically using fluorescein isothiocyanate (FITC)-labelled dextran. Immunohistochemical and immunofluorescent staining were used to detect morphological changes in the mechanical barrier. Western blotting (WB) and quantitative real-time polymerase chain reaction (qRT-PCR) revealed the expression of tight junctions, signal transducer and activator of transcription 3 (STAT3) levels. 16 S rRNA analysis of the colonic contents microflora. Flow cytometry was used to detect cytokines and Th17 cells with and without melatonin supplementation. KEY RESULTS We found that CIH could induce colonic mucosal injury, including reduction in the number of goblet cells and decrease the expression of intestinal tight junction proteins. CIH could decrease the abundance of the beneficial genera Clostridium, Akkermansia, and Bacteroides, while increasing the abundance of the pathogenic genera Desulfovibrio and Bifidobacterium. Finally, CIH facilitated Th17 differentiation via the phosphorylation of signal transducer and activator of transcription 3 (STAT3) in vitro and elevated the circulating pro-inflammatory cytokine in vivo. Melatonin supplementation ameliorated CIH-induced intestinal mucosal injury, gut microbiota dysbiosis, enteric Th17 polarization, and systemic low-grade inflammation reactions mentioned-above. CONCLUSION AND IMPLICATIONS Melatonin attenuated CIH-induced intestinal barrier dysfunction by regulating gut flora dysbiosis, mucosal epithelium integrity, and Th17 polarization via STAT3 signalling.
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Affiliation(s)
- Xinyi Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Fan Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Zhenfei Gao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Weijun Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Xiaoman Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Feng Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Hongliang Yi
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
| | - Jian Guan
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China.
| | - Xiaolin Wu
- Central Laboratory of Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, Caobao Road 8, Shanghai 200235, China.
| | - Huajun Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China.
| | - Shankai Yin
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Sleep Disordered Breathing, Otorhinolaryngology Institute of Shanghai JiaoTong University, Yishan Road 600, Shanghai 200233, China
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Mehrzadi S, Sheibani M, Koosha F, Alinaghian N, Pourhanifeh MH, Tabaeian SAP, Reiter RJ, Hosseinzadeh A. Protective and therapeutic potential of melatonin against intestinal diseases: updated review of current data based on molecular mechanisms. Expert Rev Gastroenterol Hepatol 2023; 17:1011-1029. [PMID: 37796746 DOI: 10.1080/17474124.2023.2267439] [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: 05/13/2023] [Accepted: 10/03/2023] [Indexed: 10/07/2023]
Abstract
INTRODUCTION Intestinal diseases, a leading global cause of mortality and morbidity, carry a substantial socioeconomic burden. Small and large intestines play pivotal roles in gastrointestinal physiology and food digestion. Pathological conditions, such as gut dysbiosis, inflammation, cancer, therapy-related complications, ulcers, and ischemia, necessitate the urgent exploration of safe and effective complementary therapeutic strategies for optimal intestinal health. AREAS COVERED This article evaluates the potential therapeutic effects of melatonin, a molecule with a wide range of physiological actions, on intestinal diseases including inflammatory bowel disease, irritable bowel syndrome, colon cancer, gastric/duodenal ulcers and other intestinal disorders. EXPERT OPINION Due to anti-inflammatory and antioxidant properties as well as various biological actions, melatonin could be a therapeutic option for improving digestive disorders. However, more researches are needed to fully understand the potential benefits and risks of using melatonin for digestive disorders.
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Affiliation(s)
- Saeed Mehrzadi
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sheibani
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Koosha
- Department of Radiology Technology, Faculty of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nazila Alinaghian
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Pourhanifeh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | | | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Azam Hosseinzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
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Dexmedetomidine alleviates acute lung injury by promoting Tregs differentiation via activation of AMPK/SIRT1 pathway. Inflammopharmacology 2023; 31:423-438. [PMID: 36534240 PMCID: PMC9762669 DOI: 10.1007/s10787-022-01117-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022]
Abstract
OBJECTIVES To explore the anti-inflammatory effect and the potential mechanism of dexmedetomidine in ARDS/ALI. MATERIALS AND METHODS C57BL/6 mice and EL-4 cells were used in this research. The ALI model was established by CLP. The level of inflammatory cytokines in the lung and blood, the severity of lung injury, the expression of Foxp3, and the proportion of Tregs were detected before and after dexmedetomidine treatment. The expression of the AMPK/SIRT1 after dexmedetomidine treatment was detected in vivo and in vitro. After blocking the AMPK/SIRT1 pathway or depleting Tregs in vivo, the level of the inflammatory response, tissue injury, and Tregs differentiation were detected again to clarify the effect of dexmedetomidine. RESULTS Dexmedetomidine significantly reduced systemic inflammation and lung injury in CLP mice. Dexmedetomidine enhanced the Foxp3 expression in the lungs and the frequency of Tregs in the spleen. Dexmedetomidine up-regulated the protein expression of p-AMPK and SIRT1 in lungs and EL-4 cells and facilitated the differentiation of naïve CD4+ T cells into Tregs in vitro. Meanwhile, DEX also increased the expression of Helios in Treg cells. CONCLUSIONS DEX could improve ARDS/ALI by facilitating the differentiation of Tregs from naïve CD4+ T cells via activating the AMPK/SIRT1 pathway.
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Feng S, Xu Z, Zhang Z, Mo Y, Deng Y, Li L, Fei S, Wu J, Wang K, Zhang Q, Song J, Zhou R. RNA-Seq approach to investigate the effects of melatonin on bone marrow-derived dendritic cells from dextran sodium sulfate-induced colitis mice. Toxicology 2022; 481:153354. [DOI: 10.1016/j.tox.2022.153354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/30/2022] [Accepted: 10/14/2022] [Indexed: 11/16/2022]
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Abstract
Posthemorrhagic hydrocephalus of prematurity (PHHP) remains a vexing problem for patients, their families, and the healthcare system. The complexity of the pathogenesis of PHHP also presents a unique challenge within the fields of neonatology, neurology and neurosurgery. Here we focus on pathogenesis of PHHP and its impact on the development of CSF dynamics including choroid plexus, ependymal motile cilia and glymphatic system. PHHP is contrasted with infantile hydrocephalus from other etiologies, and with other types of posthemorrhagic hydrocephalus that occur later in life. The important concept that distinguishing ventricular volume from brain health and function is highlighted. The influence of the pathogenesis of PHHP on current interventions is reviewed, with particular emphasis on how the unique pathogenesis of PHHP contributes to the high rate of failure of current existing interventions. Finally, we discuss emerging interventions. A thorough understanding of the pathogenesis of PHHP is essential to developing effective non-surgical therapeutics to prevent the transformation from severe IVH to PHHP.
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Affiliation(s)
- Shenandoah Robinson
- Neonatal Intensive Care Nursery, John's Hopkins Children's Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States; Division of Pediatric Neurosurgery, Departments of Neurosurgery, Neurology and Pediatrics, Johns Hopkins University School of Medicine, Maryland, United States.
| | - Lauren L Jantzie
- Neonatal Intensive Care Nursery, John's Hopkins Children's Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States; Division of Neonatology, Departments of Pediatrics, Neurology and Neurosurgery, Johns Hopkins University School of Medicine, Maryland, United States; Kennedy Krieger Institute, Maryland, United States
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Liu C, Zhang Y, Ma Z, Yi H. Long Noncoding RNAs as Orchestrators of CD4+ T-Cell Fate. Front Cell Dev Biol 2022; 10:831215. [PMID: 35794862 PMCID: PMC9251064 DOI: 10.3389/fcell.2022.831215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 05/13/2022] [Indexed: 11/13/2022] Open
Abstract
CD4+ T cells differentiate towards different subpopulations through the regulation of lineage-specific cytokines and transcription factors, which flexibly respond to various immune challenges. However, considerable work has demonstrated that the CD4+ T-cell differentiation mechanism is complex and not limited to transcription factors and cytokines. Long noncoding RNAs (lncRNAs) are RNA molecules with lengths exceeding 200 base pairs that regulate various biological processes and genes. LncRNAs have been found to conciliate the plasticity of CD4+ T-cell differentiation. Then, we focused on lncRNAs involved in CD4+ T-cell differentiation and enlisted some molecular thought into the plasticity and functional heterogeneity of CD4+ T cells. Furthermore, elucidating how lncRNAs modulate CD4+ T-cell differentiation in disparate immune diseases may provide a basis for the pathological mechanism of immune-mediated diseases.
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Affiliation(s)
- Chang Liu
- Central Laboratory, The First Hospital of Jilin University, Changchun, China
- Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, China
| | - Yanli Zhang
- Central Laboratory, The First Hospital of Jilin University, Changchun, China
- Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, China
| | - Zhanchuan Ma
- Central Laboratory, The First Hospital of Jilin University, Changchun, China
- Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, China
| | - Huanfa Yi
- Central Laboratory, The First Hospital of Jilin University, Changchun, China
- Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, China
- *Correspondence: Huanfa Yi,
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Bao ZK, Mi YH, Xiong XY, Wang XH. Sulforaphane Ameliorates the Intestinal Injury in Necrotizing Enterocolitis by Regulating the PI3K/Akt/GSK-3 β Signaling Pathway. Can J Gastroenterol Hepatol 2022; 2022:6529842. [PMID: 35600210 PMCID: PMC9117068 DOI: 10.1155/2022/6529842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 04/01/2022] [Indexed: 11/17/2022] Open
Abstract
Objective Necrotizing enterocolitis (NEC) is a serious neonatal disease; this study aims to investigate the role of sulforaphane (SFN) in NEC-induced intestinal injury. Methods An animal model of NEC was established in newborn mice and intragastrically administrated with SFN; then, the general status and survival of the mice were observed. H&E staining was used to observe the pathological changes of intestinal tissues. ELISA, immunohistochemical staining, and flow cytometry assays were used to detect the levels of inflammatory factors, including TNF-α, IL-6, and IL-17, the expression of Bax, Bcl-2, TLR4, and NF-κB, and the percentages of the Th17 and Treg cells, respectively. GSK-3β expression levels were measured by immunofluorescence. IEC-6 and FHC cells were induced with LPS to mimic NEC in vitro and coincubated with SFN; then, the inflammatory factor levels and cell apoptosis rate were detected. Finally, Western blot was used to assess the expression of PI3K/Akt/GSK-3β pathway-related proteins in vitro and in vivo. Results SFN improved the survival rate of NEC mice during modeling, alleviated the severity of the intestinal injury, and reduced the proportion of Th17/Treg cells. SFN could inhibit TLR4 and NF-κB levels, decrease the release of inflammatory factors TNF-α and IL-6, suppress Bax expression, increase Bcl-2 expression, and inhibit apoptosis both in in vitro and in vivo models of NEC. Meanwhile, SFN regulated the expression of PI3K/Akt/GSK-3β pathway-related proteins in vitro and in vivo. Conclusion SFN relieved the inflammatory response and apoptosis by regulating the PI3K/Akt/GSK-3β signaling pathway, thereby alleviating NEC in model mice and cells.
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Affiliation(s)
- Zhong-Kun Bao
- Department of Radiology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan-Hong Mi
- Department of Radiology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province, China
| | - Xiao-Yu Xiong
- Department of Neonatology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Xin-Hong Wang
- Department of Radiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Fu Y, Chen LP, Li P, Lv ZB. Fingolimod protects against experimental necrotizing enterocolitis by regulating intestinal T cell differentiation. Transl Pediatr 2022; 11:575-588. [PMID: 35558966 PMCID: PMC9085942 DOI: 10.21037/tp-22-92] [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: 03/03/2022] [Accepted: 04/13/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Necrotizing enterocolitis (NEC)-the leading cause of neonatal death-has been shown to be associated with an excessive inflammatory response of the intestines. Fingolimod has shown efficacy in treating many inflammatory diseases. In this study, we aimed to explore the protective effects of fingolimod on a mouse model of NEC. METHODS Experimental NEC was induced in 5-day-old C57BL/6 neonatal mice. Many methods include Hematoxylin and eosin (H&E), immunofluorescence staining, polymerase chain reaction (PCR) and western blot were used to evaluate the degreed of inflammation of NEC. A model of T-cell co-culture system in vitro was used to explain the way Fingolimod acted on T cell. We also detected the NEC associated brain injury by immunofluorescence staining. RESULTS Fingolimod treatment ameliorated NEC-induced intestinal injury, reduced inflammatory T cell infiltration, and regulated the balance between T helper 17 (Th17) and regulatory T cells in intestinal tissues. In addition, fingolimod treatment was found to blunt the pro-inflammatory phenotype of activated macrophages and decrease interleukin-17 (IL-17) secretion. Fingolimod treatment also ameliorated NEC-induced neuroinflammation. CONCLUSIONS Fingolimod can protect neonatal mice from NEC-related death by ameliorating intestinal injury and attenuating excessive inflammatory responses. These effects may be mediated through an improved Th17/Treg balance, which may result from direct and indirect effects of fingolimod on T cell infiltration and macrophage differentiation.
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Affiliation(s)
- Yao Fu
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Li-Ping Chen
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Peng Li
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi-Bao Lv
- Department of General Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Jantzie L, Muthukumar S, Kitase Y, Vasan V, Fouda MA, Hamimi S, Burkhardt C, Burton VJ, Gerner G, Scafidi J, Ye X, Northington F, Robinson S. Infantile Cocktail of Erythropoietin and Melatonin Restores Gait in Adult Rats with Preterm Brain Injury. Dev Neurosci 2022; 44:266-276. [PMID: 35358965 PMCID: PMC10066804 DOI: 10.1159/000524394] [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: 12/13/2021] [Accepted: 03/11/2022] [Indexed: 11/19/2022] Open
Abstract
Cerebral palsy (CP) is the most common cause of physical disability for children worldwide. Many infants and toddlers are not diagnosed with CP until they fail to achieve obvious motor milestones. Currently, there are no effective pharmacologic interventions available for infants and toddlers to substantially improve their trajectory of neurodevelopment. Because children with CP from preterm birth also exhibit a sustained immune system hyper-reactivity, we hypothesized that neuro-immunomodulation with a regimen of repurposed endogenous neurorestorative medications, erythropoietin (EPO) and melatonin (MLT), could improve this trajectory. Thus, we administered EPO + MLT to rats with CP during human infant-toddler equivalency to determine whether we could influence gait patterns in mature animals. After a prenatal injury on embryonic day 18 (E18) that mimics chorioamnionitis at ∼25 weeks human gestation, rat pups were born and raised with their dam. Beginning on postnatal day 15 (P15), equivalent to human infant ∼1 year, rats were randomized to receive either a regimen of EPO + MLT or vehicle (sterile saline) through P20. Gait was assessed in young adult rats at P30 using computerized digital gait analyses including videography on a treadmill. Results indicate that gait metrics of young adult rats treated with an infantile cocktail of EPO + MLT were restored compared to vehicle-treated rats (p < 0.05) and similar to sham controls. These results provide reassuring evidence that pharmacological interventions may be beneficial to infants and toddlers who are diagnosed with CP well after the traditional neonatal window of intervention.
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Affiliation(s)
- Lauren Jantzie
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Dept. of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
- Dept. of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD
- Dept. of Neurology and Developmental Medicine, Kennedy Krieger Institute, Baltimore, MD
| | - Sankar Muthukumar
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Yuma Kitase
- Dept. of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Vikram Vasan
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Mohammed A. Fouda
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Sarah Hamimi
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Dept. of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
| | | | - Vera Joanna Burton
- Dept. of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD
- Center for Infant Neurodevelopment, Kennedy Krieger Institute, Baltimore, MD
| | - Gwendolyn Gerner
- Center for Infant Neurodevelopment, Kennedy Krieger Institute, Baltimore, MD
| | - Joseph Scafidi
- Dept. of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD
- Center for Infant Neurodevelopment, Kennedy Krieger Institute, Baltimore, MD
| | - Xiaobu Ye
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Frances Northington
- Dept. of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Shenandoah Robinson
- Dept. of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD
- Dept. of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD
- Dept. of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD
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14
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Melatonin Alleviates Neonatal Necrotizing Enterocolitis by Repressing the Activation of the NLRP3 Inflammasome. Gastroenterol Res Pract 2022; 2022:6920577. [PMID: 35340691 PMCID: PMC8947927 DOI: 10.1155/2022/6920577] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 02/22/2022] [Accepted: 02/26/2022] [Indexed: 02/08/2023] Open
Abstract
Objective Necrotizing enterocolitis (NEC) is one of the commonest gastrointestinal critical diseases in newborns. Several researches have proven the efficacy of melatonin (MEL) on NEC, but the latent mechanisms were ambiguous. We designed the current research to evaluate the function and mechanism of MEL on NEC in a neonatal mouse model. Methods The newborn mice were subjected to formula milk containing LPS and hypoxia to establish a NEC model and also intraperitoneally injected with MEL. During the experiment, all mice were closely monitored and weighed. The effect of MEL on the histopathological injury of the terminal ileum tissues, inflammation, and oxidative stress of serum in NEC mice was examined by hematoxylin-eosin (H&E) staining and ELISA. The effect of MEL on the NOD-like receptor family pyrin domain containing 3 (NLRP3) inflammasome was assessed via quantitative real-time PCR and Western blot. Results MEL intensified the survival rate and body weight in NEC mice. The H&E staining illustrated that MEL improved the histopathological injury in NEC mice. Moreover, MEL repressed the IL-1β, TNF-α, and MDA levels of serum and enhanced the SOD and GSH-Px levels of serum in NEC mice. We also discovered that MEL attenuated the mRNA and protein levels of NLRP3, Toll-like Receptor 4 (TLR4), NF-κB, and caspase-1 of the terminal ileum tissues in NEC mice. Conclusion Our research illuminated that MEL attenuated the severity of NEC via weakening the activation of the NLRP3 inflammasome.
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