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Chen R, Wang X, Li N, Golubnitschaja O, Zhan X. Body fluid multiomics in 3PM-guided ischemic stroke management: health risk assessment, targeted protection against health-to-disease transition, and cost-effective personalized approach are envisaged. EPMA J 2024; 15:415-452. [PMID: 39239108 PMCID: PMC11371995 DOI: 10.1007/s13167-024-00376-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2024] [Accepted: 08/13/2024] [Indexed: 09/07/2024]
Abstract
Because of its rapid progression and frequently poor prognosis, stroke is the third major cause of death in Europe and the first one in China. Many independent studies demonstrated sufficient space for prevention interventions in the primary care of ischemic stroke defined as the most cost-effective protection of vulnerable subpopulations against health-to-disease transition. Although several studies identified molecular patterns specific for IS in body fluids, none of these approaches has yet been incorporated into IS treatment guidelines. The advantages and disadvantages of individual body fluids are thoroughly analyzed throughout the paper. For example, multiomics based on a minimally invasive approach utilizing blood and its components is recommended for real-time monitoring, due to the particularly high level of dynamics of the blood as a body system. On the other hand, tear fluid as a more stable system is recommended for a non-invasive and patient-friendly holistic approach appropriate for health risk assessment and innovative screening programs in cost-effective IS management. This article details aspects essential to promote the practical implementation of highlighted achievements in 3PM-guided IS management. Supplementary Information The online version contains supplementary material available at 10.1007/s13167-024-00376-2.
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Affiliation(s)
- Ruofei Chen
- Shandong Provincial Key Laboratory of Precision Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong 250117 P. R. China
| | - Xiaoyan Wang
- Shandong Provincial Key Laboratory of Precision Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong 250117 P. R. China
| | - Na Li
- Shandong Provincial Key Laboratory of Precision Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong 250117 P. R. China
| | - Olga Golubnitschaja
- Predictive, Preventive and Personalised (3P) Medicine, University Hospital Bonn, Venusberg Campus 1, Rheinische Friedrich-Wilhelms-University of Bonn, Bonn, 53127 Germany
| | - Xianquan Zhan
- Shandong Provincial Key Laboratory of Precision Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, 440 Jiyan Road, Jinan, Shandong 250117 P. R. China
- Shandong Provincial Key Medical and Health Laboratory of Ovarian Cancer Multiomics, & Jinan Key Laboratory of Cancer Multiomics, Shandong First Medical University & Shandong Academy of Medical Sciences, 6699 Qingdao Road, Jinan, Shandong 250117 P. R. China
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Hernández-Ortega K, Canul-Euan AA, Solis-Paredes JM, Borboa-Olivares H, Reyes-Muñoz E, Estrada-Gutierrez G, Camacho-Arroyo I. S100B actions on glial and neuronal cells in the developing brain: an overview. Front Neurosci 2024; 18:1425525. [PMID: 39027325 PMCID: PMC11256909 DOI: 10.3389/fnins.2024.1425525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 06/20/2024] [Indexed: 07/20/2024] Open
Abstract
The S100B is a member of the S100 family of "E" helix-loop- "F" helix structure (EF) hand calcium-binding proteins expressed in diverse glial, selected neuronal, and various peripheral cells, exerting differential effects. In particular, this review compiles descriptions of the detection of S100B in different brain cells localized in specific regions during the development of humans, mice, and rats. Then, it summarizes S100B's actions on the differentiation, growth, and maturation of glial and neuronal cells in humans and rodents. Particular emphasis is placed on S100B regulation of the differentiation and maturation of astrocytes, oligodendrocytes (OL), and the stimulation of dendritic development in serotoninergic and cerebellar neurons during embryogenesis. We also summarized reports that associate morphological alterations (impaired neurite outgrowth, neuronal migration, altered radial glial cell morphology) of specific neural cell groups during neurodevelopment and functional disturbances (slower rate of weight gain, impaired spatial learning) with changes in the expression of S100B caused by different conditions and stimuli as exposure to stress, ethanol, cocaine and congenital conditions such as Down's Syndrome. Taken together, this evidence highlights the impact of the expression and early actions of S100B in astrocytes, OL, and neurons during brain development, which is reflected in the alterations in differentiation, growth, and maturation of these cells. This allows the integration of a spatiotemporal panorama of S100B actions in glial and neuronal cells in the developing brain.
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Affiliation(s)
- Karina Hernández-Ortega
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, México City, Mexico
| | - Arturo Alejandro Canul-Euan
- Department of Developmental Neurobiology, National Institute of Perinatology Isidro Espinosa de los Reyes (INPer), Mexico City, Mexico
| | | | | | | | | | - Ignacio Camacho-Arroyo
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, México City, Mexico
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Zhang T, Huang S, Wang M, Yang N, Zhu H. Integrated untargeted and targeted proteomics to unveil plasma prognostic markers for patients with acute paraquat poisoning: A pilot study. Food Chem Toxicol 2023; 182:114187. [PMID: 37967786 DOI: 10.1016/j.fct.2023.114187] [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: 09/03/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/17/2023]
Abstract
Paraquat (PQ) is a widely used but strongly toxic herbicide, which can induce multiple organ failure. The overall survival rate of the poisoned patients was only 54.4% due to lack of specific antidotes. Besides, the definite pathogenic mechanism of PQ is still not fully understood. In this pilot study, untargeted and targeted proteomics were integrated to explore the expression characteristics of plasma protein in PQ poisoned patients, and identify the differentially expressed proteins between survivors and non-survivors. A total of 494 plasma proteins were detected, and of which 47 were upregulated and 44 were downregulated in PQ poisoned patients compared to healthy controls. Among them, five differential plasma proteins (S100A9, S100A8, MB, ACTB and RAB11FIP3) were further validated by multiple reaction monitoring (MRM)-based targeted proteomic approach, and three of them (S100A9, S100A8 and ACTB) were confirmed to be correlated with PQ poisoning. Meanwhile, 84 dysregulated plasma proteins were identified in non-survivors compared with survivors. Moreover, targeted proteomic and ROC analysis suggested that ACTB had a good performance in predicting the prognosis of PQ poisoned patients. These findings highlighted the value of label-free and mass spectrometry-based proteomics in screening prognostic biomarkers of PQ poisoning and studying the mechanism of PQ toxicity.
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Affiliation(s)
- Tianqi Zhang
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, 210008, China
| | - Siqi Huang
- Department of Pharmacy, Nanjing Drum Tower Hospital, Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, China
| | - Min Wang
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, 210008, China
| | - Na Yang
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, 210008, China.
| | - Huaijun Zhu
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China; Nanjing Medical Center for Clinical Pharmacy, Nanjing, 210008, China.
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Aisa MC, Cappuccini B, Favilli A, Datti A, Nardicchi V, Coata G, Gerli S. Biochemical and Anthropometric Parameters for the Early Recognition of the Intrauterine Growth Restriction and Preterm Neonates at Risk of Impaired Neurodevelopment. Int J Mol Sci 2023; 24:11549. [PMID: 37511307 PMCID: PMC10380875 DOI: 10.3390/ijms241411549] [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: 06/08/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND S100B and Tau are implicated with both brain growth and injury. Their urinary levels in 30-to-40-day-old full-term, preterm, IUGR, and preterm-IUGR subjects were measured to investigate their possible relationship with future delayed neurodevelopment. METHODS Values were related to the neuro-behavioral outcome at two years of age, as well as to brain volumes and urinary NGF assessed at the same postnatal time point. RESULTS Using the Griffiths III test, cognitive and motor performances were determined to establish subgroups characterized by either normal or impaired neuro-behavior. The latter included preterm, IUGR, and preterm-IUGR individuals who exhibited significantly higher and lower S100B and Tau levels, respectively, along with markedly reduced cerebral volumes and urinary NGF, as previously demonstrated. Contrary to NGF, however, Tau and S100B displayed a weak correlation with brain volumes. CONCLUSIONS Delayed cognitive and motor performances observed in two-year-old preterm and IUGR-born individuals were also found to be associated with anomalous urinary levels of S100B and Tau, assessed at 30-40 days of the postnatal period, and their changes did not correlate with brain growth. Thus, our data suggests that, in addition to cerebral volumes and NGF, urinary S100B and Tau can also be considered as valuable parameters for the early detection of future neurodevelopmental abnormalities.
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Affiliation(s)
- Maria Cristina Aisa
- Department of Surgical and Biomedical Sciences, Section of Obstetrics and Gynecology, University of Perugia, 06129 Perugia, Italy
- GeBiSa, Research Foundation, 06129 Perugia, Italy
- Centre of Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
| | | | - Alessandro Favilli
- Department of Surgical and Biomedical Sciences, Section of Obstetrics and Gynecology, University of Perugia, 06129 Perugia, Italy
- GeBiSa, Research Foundation, 06129 Perugia, Italy
- Centre of Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
| | - Alessandro Datti
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06121 Perugia, Italy
| | | | - Giuliana Coata
- Department of Surgical and Biomedical Sciences, Section of Obstetrics and Gynecology, University of Perugia, 06129 Perugia, Italy
- Centre of Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
| | - Sandro Gerli
- Department of Surgical and Biomedical Sciences, Section of Obstetrics and Gynecology, University of Perugia, 06129 Perugia, Italy
- GeBiSa, Research Foundation, 06129 Perugia, Italy
- Centre of Perinatal and Reproductive Medicine, University of Perugia, 06129 Perugia, Italy
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Serum s100b protein levels as a neuroinflammatory biomarker of acutely relapsed paranoid schizophrenia patients. Acta Neuropsychiatr 2022; 35:138-146. [PMID: 36503534 DOI: 10.1017/neu.2022.37] [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] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The s100b inflammatory protein is involved in schizophrenia pathophysiology. We aim at studying the evolution of the s100b serum levels in acutely relapsed paranoid schizophrenia patients at three different time points (admission, discharge and 3 months after hospital discharge 3MAHD). METHODS Twenty-three paranoid schizophrenia inpatients meeting DSM-IV criteria participated in the research. Twenty-three healthy subjects matched by age, gender and season acted as the control group. Psychopathology was measured with the Positive and Negative Syndrome Scale (PANSS). Serum s100b levels were determined at 12:00 and 24:00 h with an enzyme-linked immunoassay kit. RESULTS Patients had significant higher serum s100b levels at admission and discharge (12:00 h) than the group of healthy subjects. At admission and discharge, s100b serum levels at 24 h had decreased compared to the 24:00 h s100b levels of the healthy subjects. At 3MAHD patients and healthy subjects had similar levels of serum s100b protein. Positive and negative PANSS scores decreased significantly between admission and discharge. Positive and negative PANSS scores decreased between discharge and 3MAHD, but these changes had no statistical significance. CONCLUSIONS Our study confirms that the acute inflammatory response produced in acutely relapsed patients is reversed after 3 month of hospital discharge. The variations of serum s100b concentrations when the patients suffer from an acute relapse may be a useful predictor of disease evolution.
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Martens GA, Geßner C, Osterhof C, Hankeln T, Burmester T. Transcriptomes of Clusterin- and S100B-transfected neuronal cells elucidate protective mechanisms against hypoxia and oxidative stress in the hooded seal (Cystophora cristata) brain. BMC Neurosci 2022; 23:59. [PMID: 36243678 PMCID: PMC9571494 DOI: 10.1186/s12868-022-00744-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 10/10/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The hooded seal (Cystophora cristata) exhibits impressive diving skills and can tolerate extended durations of asphyxia, hypoxia and oxidative stress, without suffering from irreversible neuronal damage. Thus, when exposed to hypoxia in vitro, neurons of fresh cortical and hippocampal tissue from hooded seals maintained their membrane potential 4-5 times longer than neurons of mice. We aimed to identify the molecular mechanisms underlying the intrinsic neuronal hypoxia tolerance. Previous comparative transcriptomics of the visual cortex have revealed that S100B and clusterin (apolipoprotein J), two stress proteins that are involved in neurological disorders characterized by hypoxic conditions, have a remarkably high expression in hooded seals compared to ferrets. When overexpressed in murine neuronal cells (HN33), S100B and clusterin had neuroprotective effects when cells were exposed to hypoxia. However, their specific roles in hypoxia have remained largely unknown. METHODS In order to shed light on potential molecular pathways or interaction partners, we exposed HN33 cells transfected with either S100B, soluble clusterin (sCLU) or nuclear clusterin (nCLU) to normoxia, hypoxia and oxidative stress for 24 h. We then determined cell viability and compared the transcriptomes of transfected cells to control cells. Potential pathways and upstream regulators were identified via Gene Ontology (GO) and Ingenuity Pathway Analysis (IPA). RESULTS HN33 cells transfected with sCLU and S100B demonstrated improved glycolytic capacity and reduced aerobic respiration at normoxic conditions. Additionally, sCLU appeared to enhance pathways for cellular homeostasis to counteract stress-induced aggregation of proteins. S100B-transfected cells sustained lowered energy-intensive synaptic signaling. In response to hypoxia, hypoxia-inducible factor (HIF) pathways were considerably elevated in nCLU- and sCLU-transfected cells. In a previous study, S100B and sCLU decreased the amount of reactive oxygen species and lipid peroxidation in HN33 cells in response to oxidative stress, but in the present study, these functional effects were not mirrored in gene expression changes. CONCLUSIONS sCLU and S100B overexpression increased neuronal survival by decreasing aerobic metabolism and synaptic signaling in advance to hypoxia and oxidative stress conditions, possibly to reduce energy expenditure and the build-up of deleterious reactive oxygen species (ROS). Thus, a high expression of CLU isoforms and S100B is likely beneficial during hypoxic conditions.
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Affiliation(s)
- Gerrit A Martens
- Institute of Animal Cell and Systems Biology, Biocenter Grindel, University of Hamburg, 20146, Hamburg, Germany.
| | - Cornelia Geßner
- Institute of Animal Cell and Systems Biology, Biocenter Grindel, University of Hamburg, 20146, Hamburg, Germany
| | - Carina Osterhof
- Institute of Organismic and Molecular Evolution, Molecular Genetics & Genome Analysis, Johannes Gutenberg University Mainz, 55128, Mainz, Germany
| | - Thomas Hankeln
- Institute of Organismic and Molecular Evolution, Molecular Genetics & Genome Analysis, Johannes Gutenberg University Mainz, 55128, Mainz, Germany
| | - Thorsten Burmester
- Institute of Animal Cell and Systems Biology, Biocenter Grindel, University of Hamburg, 20146, Hamburg, Germany
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Ma H, Cheng N, Zhang C. Schizophrenia and Alarmins. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:medicina58060694. [PMID: 35743957 PMCID: PMC9230958 DOI: 10.3390/medicina58060694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
Schizophrenia, consisting of a group of severe psychiatric disorders with a complex etiology, is a leading cause of disability globally. Due to the lack of objective indicators, accurate diagnosis and selection of effective treatments for schizophrenia remain challenging. The association between schizophrenia and alarmins levels has been proposed for many years, but without solid evidence. Alarmins are prestored molecules that do not require processing and can be released upon cell death or damage, making them an ideal candidate for an early initiator of inflammation. Immunological biomarkers seem to be related to disease progression and treatment effectiveness. Several studies suggest strong associations among the high-mobility group box 1 protein (HMGB1), interleukin-1α, interleukin-33, S100B, heat-shock proteins, and uric acid with schizophrenic disorders. The purpose of this review is to discuss the evidence of central and peripheral immune findings in schizophrenia, their potential causes, and the effects of immunomodulatory therapies on symptoms and outline potential applications of these markers in managing the illness. Although there are currently no effective markers for diagnosing or predicting treatment effects in patients with schizophrenia, we believe that screening immune-inflammatory biomarkers that are closely related to the pathological mechanism of schizophrenia can be used for early clinical identification, diagnosis, and treatment of schizophrenia, which may lead to more effective treatment options for people with schizophrenia.
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Affiliation(s)
- Huan Ma
- Department of Psychiatry, First Clinical College, Xuzhou Medical University, Xuzhou 221000, China; (H.M.); (N.C.)
| | - Ning Cheng
- Department of Psychiatry, First Clinical College, Xuzhou Medical University, Xuzhou 221000, China; (H.M.); (N.C.)
| | - Caiyi Zhang
- Department of Psychiatry, First Clinical College, Xuzhou Medical University, Xuzhou 221000, China; (H.M.); (N.C.)
- Department of Psychiatry, The Affiliated Xuzhou Oriental Hospital of Xuzhou Medical University, Xuzhou 221000, China
- Department of Medical Psychology, Second Clinical College, Xuzhou Medical University, Xuzhou 221000, China
- Correspondence: ; Tel.: +86-137-7588-9105
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Wang Y, Liang R, Lin J, Chen J, Zhang Q, Li J, Wang M, Hui X, Tan H, Fu Q. Biodegradable polyurethane nerve guide conduits with different moduli influence axon regeneration in transected peripheral nerve injury. J Mater Chem B 2021; 9:7979-7990. [PMID: 34612287 DOI: 10.1039/d1tb01236c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Nerve guide conduits (NGCs) can replace autogenous nerve grafting in the treatment of peripheral nerve system (PNS) injury. However, the modulus of polyurethane NGCs that affects the outcome of PNS repair has been rarely elucidated in vivo. In this study, we developed biodegradable waterborne polyurethane (BWPU) NGCs with an outer BWPU membrane and an inner three-dimensional scaffold structure. The mechanical properties of BWPU NGCs can be modified by adjusting the molar content of polyethylene glycol (PEG) in the soft segments within the BWPU. Two types of BWPU NGCs with different moduli were prepared, containing 17% and 25% PEG in BWPU (termed as BWPU 17 NGCs and BWPU 25 NGCs, respectively). In rat sciatic nerves with 10-mm transected injury, mechanically stronger BWPU 17 NGCs exhibited superior nerve repair, which was similar to that obtained by the current gold standard autograft implantation, whereas weaker BWPU 25 NGCs displayed an unsatisfactory effect. Histological results revealed that both BWPU NGCs had anti-inflammatory effects and altered the activation state of macrophages to M2 phenotypes to enhance PNS regeneration. The analysis of growth-associated protein 43 expression, which regulates axon growth, revealed that the mechanical properties of BWPU NGCs influence the outcome of PNS regeneration by affecting the formation and extension of axons. These findings suggest that the mechanical properties of NGCs could play a key role in regulating PNS repair and should be considered in future biomaterial NGC designs.
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Affiliation(s)
- Yanchao Wang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China.
| | - Ruichao Liang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China.
| | - Jingjing Lin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan, 610065, China.
| | - Jinlin Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan, 610065, China.
| | - Qiao Zhang
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China.
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan, 610065, China.
| | - Minjin Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Xuhui Hui
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan, 610000, China.
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan, 610065, China.
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Med-X center of materials, Sichuan University, Chengdu, Sichuan, 610065, China.
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Jadi PK, Sharma P, Bhogapurapu B, Roy S. Alternative Therapeutic Interventions: Antimicrobial Peptides and Small Molecules to Treat Microbial Keratitis. Front Chem 2021; 9:694998. [PMID: 34458234 PMCID: PMC8386189 DOI: 10.3389/fchem.2021.694998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/02/2021] [Indexed: 01/10/2023] Open
Abstract
Microbial keratitis is a leading cause of blindness worldwide and results in unilateral vision loss in an estimated 2 million people per year. Bacteria and fungus are two main etiological agents that cause corneal ulcers. Although antibiotics and antifungals are commonly used to treat corneal infections, a clear trend with increasing resistance to these antimicrobials is emerging at rapid pace. Extensive research has been carried out to determine alternative therapeutic interventions, and antimicrobial peptides (AMPs) are increasingly recognized for their clinical potential in treating infections. Small molecules targeted against virulence factors of the pathogens and natural compounds are also explored to meet the challenges and growing demand for therapeutic agents. Here we review the potential of AMPs, small molecules, and natural compounds as alternative therapeutic interventions for the treatment of corneal infections to combat antimicrobial resistance. Additionally, we have also discussed about the different formats of drug delivery systems for optimal administration of drugs to treat microbial keratitis.
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Affiliation(s)
- Praveen Kumar Jadi
- Prof, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
| | - Prerana Sharma
- Prof, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
- Department of Animal Sciences, University of Hyderabad, Hyderabad, India
| | - Bharathi Bhogapurapu
- Prof, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
| | - Sanhita Roy
- Prof, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, India
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Mancinelli R, Checcaglini F, Coscia F, Gigliotti P, Fulle S, Fanò-Illic G. Biological Aspects of Selected Myokines in Skeletal Muscle: Focus on Aging. Int J Mol Sci 2021; 22:8520. [PMID: 34445222 PMCID: PMC8395159 DOI: 10.3390/ijms22168520] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/28/2021] [Accepted: 08/04/2021] [Indexed: 12/13/2022] Open
Abstract
In the last decade, clear evidence has emerged that the cellular components of skeletal muscle are important sites for the release of proteins and peptides called "myokines", suggesting that skeletal muscle plays the role of a secretory organ. After their secretion by muscles, these factors serve many biological functions, including the exertion of complex autocrine, paracrine and/or endocrine effects. In sum, myokines affect complex multi-organ processes, such as skeletal muscle trophism, metabolism, angiogenesis and immunological response to different physiological (physical activity, aging, etc.) or pathological states (cachexia, dysmetabolic conditions, chronic inflammation, etc.). The aim of this review is to describe in detail a number of myokines that are, to varying degrees, involved in skeletal muscle aging processes and belong to the group of proteins present in the functional environment surrounding the muscle cell known as the "Niche". The particular myokines described are those that, acting both from within the cell and in an autocrine manner, have a defined relationship with the modulation of oxidative stress in muscle cells (mature or stem) involved in the regulatory (metabolic or regenerative) processes of muscle aging. Myostatin, IGF-1, NGF, S100 and irisin are examples of specific myokines that have peculiar features in their mechanisms of action. In particular, the potential role of one of the most recently characterized myokines-irisin, directly linked to an active lifestyle-in reducing if not reversing senescence-induced oxidative damage is discussed in terms of its possible application as an agent able to counteract the deleterious effects of muscle aging.
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Affiliation(s)
- Rosa Mancinelli
- Department of Neuroscience Imaging and Clinical Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (R.M.); (S.F.)
- IIM-Interuniversity Institute of Myology, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Franco Checcaglini
- Free University of Alcatraz, Santa Cristina di Gubbio, 06100 Perugia, Italy;
| | - Francesco Coscia
- Department of Medicine, Laboratory of Sport Physiology, University of Perugia, 39038 San Candido-Innichen, Italy; (F.C.); (P.G.)
| | - Paola Gigliotti
- Department of Medicine, Laboratory of Sport Physiology, University of Perugia, 39038 San Candido-Innichen, Italy; (F.C.); (P.G.)
| | - Stefania Fulle
- Department of Neuroscience Imaging and Clinical Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (R.M.); (S.F.)
- IIM-Interuniversity Institute of Myology, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
| | - Giorgio Fanò-Illic
- Department of Neuroscience Imaging and Clinical Sciences, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy; (R.M.); (S.F.)
- IIM-Interuniversity Institute of Myology, University “G. d’Annunzio” of Chieti-Pescara, 66100 Chieti, Italy
- Free University of Alcatraz, Santa Cristina di Gubbio, 06100 Perugia, Italy;
- A&C M-C Foundation for Translational Myology, 35100 Padova, Italy
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Michetti F, Di Sante G, Clementi ME, Sampaolese B, Casalbore P, Volonté C, Romano Spica V, Parnigotto PP, Di Liddo R, Amadio S, Ria F. Growing role of S100B protein as a putative therapeutic target for neurological- and nonneurological-disorders. Neurosci Biobehav Rev 2021; 127:446-458. [PMID: 33971224 DOI: 10.1016/j.neubiorev.2021.04.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/15/2021] [Accepted: 04/29/2021] [Indexed: 02/07/2023]
Abstract
S100B is a calcium-binding protein mainly expressed by astrocytes, but also localized in other definite neural and extra-neural cell types. While its presence in biological fluids is widely recognized as a reliable biomarker of active injury, growing evidence now indicates that high levels of S100B are suggestive of pathogenic processes in different neural, but also extra-neural, disorders. Indeed, modulation of S100B levels correlates with the occurrence of clinical and/or toxic parameters in experimental models of diseases such as Alzheimer's and Parkinson's diseases, amyotrophic lateral sclerosis, muscular dystrophy, multiple sclerosis, acute neural injury, inflammatory bowel disease, uveal and retinal disorders, obesity, diabetes and cancer, thus directly linking the levels of S100B to pathogenic mechanisms. In general, deletion/inactivation of the protein causes the improvement of the disease, whereas its over-expression/administration induces a worse clinical presentation. This scenario reasonably proposes S100B as a common therapeutic target for several different disorders, also offering new clues to individuate possible unexpected connections among these diseases.
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Affiliation(s)
- Fabrizio Michetti
- Department of Neuroscience, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy; IRCCS San Raffaele Scientific Institute, Università Vita-Salute San Raffaele, 20132 Milan, Italy.
| | - Gabriele Di Sante
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy; Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 1-8, 00168 Rome, Italy.
| | - Maria Elisabetta Clementi
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" SCITEC-CNR, Largo Francesco Vito 1, 00168 Rome, Italy.
| | - Beatrice Sampaolese
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" SCITEC-CNR, Largo Francesco Vito 1, 00168 Rome, Italy.
| | - Patrizia Casalbore
- Institute for Systems Analysis and Computer Science, IASI-CNR, Largo Francesco Vito 1, 00168 Rome, Italy.
| | - Cinzia Volonté
- Institute for Systems Analysis and Computer Science, IASI-CNR, Largo Francesco Vito 1, 00168 Rome, Italy; Cellular Neurobiology Unit, Preclinical Neuroscience, IRCCS Santa Lucia Foundation, Via del Fosso di Fiorano 65, 00143 Rome, Italy.
| | - Vincenzo Romano Spica
- Department of Movement, Human and Health Sciences, Laboratory of Epidemiology and Biotechnologies, University of Rome "Foro Italico", Piazza Lauro De Bosis 6, 00135, Rome, Italy.
| | - Pier Paolo Parnigotto
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (T.E.S.) Onlus, Padua, Italy.
| | - Rosa Di Liddo
- Foundation for Biology and Regenerative Medicine, Tissue Engineering and Signaling (T.E.S.) Onlus, Padua, Italy; Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Italy.
| | - Susanna Amadio
- Cellular Neurobiology Unit, Preclinical Neuroscience, IRCCS Santa Lucia Foundation, Via del Fosso di Fiorano 65, 00143 Rome, Italy.
| | - Francesco Ria
- Department of Translational Medicine and Surgery, Section of General Pathology, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy; Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 1-8, 00168 Rome, Italy.
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12
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Gürünlüoğlu S, Ceran C, Gürünlüoğlu K, Koçbiyik A, Gül M, Yıldız T, Bağ HG, Gül S, Taşçi A, Bayrakçi E, Akpinar N, Çin ES, Ateş H, Demircan M. Glial Cell Line-Derived Neurotrophic Factor, S-100 Protein and Synaptophysin Expression in Biliary Atresia Gallbladder Tissue. Pediatr Gastroenterol Hepatol Nutr 2021; 24:173-186. [PMID: 33833973 PMCID: PMC8007845 DOI: 10.5223/pghn.2021.24.2.173] [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: 08/07/2020] [Revised: 10/09/2020] [Accepted: 10/20/2020] [Indexed: 11/14/2022] Open
Abstract
PURPOSE Biliary atresia (BA) is a disease that manifests as jaundice after birth and leads to progressive destruction of the ductal system in the liver. The aim of this study was to investigate histopathological changes and immunohistochemically examine the expression of glial cell line-derived neurotrophic factor (GDNF), synaptophysin, and S-100 protein in the gallbladder of BA patients. METHODS The study included a BA group of 29 patients and a control group of 41 children with cholecystectomy. Gallbladder tissue removed during surgery was obtained and examined immunohistochemically and histopathologically. Tissue samples of both groups were immunohistochemically assessed in terms of GDNF, S-100 protein, and synaptophysin expression. Expression was classified as present or absent. Inflammatory activity assessment with hematoxylin and eosin staining and fibrosis assessment with Masson's trichrome staining were performed for tissue sample sections of both groups. RESULTS Ganglion cells were not present in gallbladder tissue samples of the BA group. Immunohistochemically, GDNF, synaptophysin, and S-100 expression was not detected in the BA group. Histopathological examination revealed more frequent fibrosis and slightly higher inflammatory activity in the BA than in the control group. CONCLUSION We speculate that GDNF expression will no longer continue in this region, when the damage caused by inflammation of the extrahepatic bile ducts reaches a critical threshold. The study's findings may represent a missing link in the chain of events forming the etiology of BA and may be helpful in its diagnosis.
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Affiliation(s)
- Semra Gürünlüoğlu
- Department of Pathology Malatya Education and Research Hospital, Pathology Laboratory, Malatya, Turkey
| | - Canan Ceran
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Kubilay Gürünlüoğlu
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Alper Koçbiyik
- Department of Pathology, Istanbul Bakırköy Dr Sadi Konuk Education and Research Hospital, Pathology Laboratory, Istanbul, Turkey
| | - Mehmet Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Turan Yıldız
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Harika Gözükara Bağ
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Semir Gül
- Department of Histology and Embryology, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Aytaç Taşçi
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Ercan Bayrakçi
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Necmettin Akpinar
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Ecem Serbest Çin
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Hasan Ateş
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
| | - Mehmet Demircan
- Department of Pediatric Surgery, Faculty of Medicine, İnönü University, Malatya, Turkey
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13
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Huang Z, Pan J, Chen J, Wu S, Wu T, Ye H, Zhang H, Nie X, Huang C. Multicentre clinicopathological study of adenoid cystic carcinoma: A report of 296 cases. Cancer Med 2021; 10:1120-1127. [PMID: 33449415 PMCID: PMC7897951 DOI: 10.1002/cam4.3707] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/06/2020] [Accepted: 12/11/2020] [Indexed: 12/22/2022] Open
Abstract
Aims Adenoid cystic carcinoma (ACC) is a distinctive tumour. Limited studies involving a large population have reported multicentre systematic analyses of the clinical, pathological and immunohistochemical (IHC) features of ACC as well as the potential role of IHC markers in the prognosis of ACC. Methods and Results The clinical, histopathological and IHC data of 296 cases obtained from two tertiary hospitals were analysed. The age at onset ranged from 12 to 87 years with a median age of 52 years. The male‐to‐female ratio was 1:1.3. Patients with ACC arising from the lacrimal gland were younger than those with tumours arising from other sites. Patients with tumours in the extra auditory canal and nasopharynx were older than those with tumours in other locations. Histopathologically, solid type ACC was the most frequent in the nasal cavity and paranasal sinus (6/51) group. Tumours arising from the oral cavity most commonly showed perineural invasion (10/60) and margin positivity (11/60). IHC analyses showed that CK8/18, CK7, CK14, epithelial membrane antigen and CD117 were expressed in 35/35 (100%), 87/88 (98.8%), 26/27 (96.2%), 42/43 (97.6%) and 113/120 (94.1%) patients, respectively. CK5/6, P63, smooth muscle actin, calponin and S100 were positively expressed in 73/73 (100%), 111/124 (89.5%), 38/43 (88.3%), 41/50 (82.0%) and 61/92 (66.3%) cases, respectively. S100 proteins were expressed in 54 (54/77) primary cases and two (2/9) metastatic cases (p = 0.013). Conclusions ACC is a distinctive tumour that mainly affects middle‐aged and elderly individuals, with a mild female predominance. Loss of expression of S100 proteins may be a poor prognostic factor associated with metastasis.
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Affiliation(s)
- Zheng Huang
- Department of Pathology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Juan Pan
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaorong Chen
- Department of Anatomy and Histology & Embryology, Basic Medical College, Hubei University of Traditional Chinese Medicine, Wuhan, China
| | - Shidi Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haihua Ye
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongfeng Zhang
- Department of Pathology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiu Nie
- Department of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Changzheng Huang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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14
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Fulle S, Belia S, Fanò Illic G. The Arianna thread: the matching of S-100 family with the RyR's muscle receptor. Eur J Transl Myol 2020; 30:8839. [PMID: 32499888 PMCID: PMC7254442 DOI: 10.4081/ejtm.2019.8839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 01/31/2020] [Indexed: 11/23/2022] Open
Abstract
The functional state of RyR depends on the intracellular calcium concentration and on the oxidation state of its protein components in some particular sites and of some sentinel amino acids. In addition to the regulation of the RyR channel by exogenous substances (caffeine, ryanodine), ions environmental situations (oxidative state), other components, such as some endogenous proteins present in the sarcoplasm and/or in muscle membranes that are able to determine changes in Ca2+ channel activity. Among these, calmodulin and S-100A could determine modifications in the status of RyR channel in the skeletal muscle. The currently available data can be justified the use of a simplified S-100/CaM and RyR interaction model for the regulation of Ca2+ release in skeletal muscle. Under resting conditions, the CaM/S100A1 binding domain on RyR1 is predominantly dependent on S100A1. Vice versa when the intracellular Ca2+ concentration becomes high as well as during repetitive (tetanus) stimulation, the Ca-CaM bond becomes dominant, shifting S100A1 from RyR1 and promoting channel inactivation. This may be one of the mechanism of muscle fatigue.
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Affiliation(s)
- Stefania Fulle
- Department of Neuroscience, Imaging and Clinical Science, University "G. d'Annunzio" Chieti-Pescara, Italy.,Interuniversity Institute of Myology (IIM)
| | - Silvia Belia
- Interuniversity Institute of Myology (IIM).,Department of Chemistry, Biology and Biotechnology, University of Perugia, Italy
| | - Giorgio Fanò Illic
- Interuniversity Institute of Myology (IIM).,Free University of Alcatraz, Santa Cristina of Gubbio, Perugia, Italy
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15
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Michetti F, D'Ambrosi N, Toesca A, Puglisi MA, Serrano A, Marchese E, Corvino V, Geloso MC. The S100B story: from biomarker to active factor in neural injury. J Neurochem 2018; 148:168-187. [DOI: 10.1111/jnc.14574] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/19/2018] [Accepted: 08/15/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Fabrizio Michetti
- Institute of Anatomy and Cell Biology; Università Cattolica del Sacro Cuore; Rome Italy
- IRCCS San Raffaele Scientific Institute; Università Vita-Salute San Raffaele; Milan Italy
| | - Nadia D'Ambrosi
- Department of Biology; Università degli Studi di Roma Tor Vergata; Rome Italy
| | - Amelia Toesca
- Institute of Anatomy and Cell Biology; Università Cattolica del Sacro Cuore; Rome Italy
| | | | - Alessia Serrano
- Institute of Anatomy and Cell Biology; Università Cattolica del Sacro Cuore; Rome Italy
| | - Elisa Marchese
- Institute of Anatomy and Cell Biology; Università Cattolica del Sacro Cuore; Rome Italy
| | - Valentina Corvino
- Institute of Anatomy and Cell Biology; Università Cattolica del Sacro Cuore; Rome Italy
| | - Maria Concetta Geloso
- Institute of Anatomy and Cell Biology; Università Cattolica del Sacro Cuore; Rome Italy
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16
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Wei L, Wang Y, Lin L, Zhang L, Shi Y, Xiang P, Cao S, Shen M, Yang P. Identification of potential serum biomarkers of acute paraquat poisoning in humans using an iTRAQ quantitative proteomic. RSC Adv 2018; 8:10598-10609. [PMID: 35540476 PMCID: PMC9078879 DOI: 10.1039/c7ra12956d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/28/2019] [Accepted: 03/07/2018] [Indexed: 12/18/2022] Open
Abstract
Paraquat (PQ) poisoning has high mortality rates in many countries. Due to it readily being absorbed through the gastrointestinal tract and rapidly excreted in the urine, few biomarkers possess satisfactory specificity and sensitivity in diagnostic and forensic practices. To investigate serum biomarkers in patients with PQ poisoning, pooled sera was analyzed using a proteomic approach based on iTRAQ coupled LC-MS/MS. Of the 413 proteins identified with high confidence, 81 were found to be differentially expressed (1.5-fold change) in the sera of patients with PQ poisoning. The differential expression pattern of 4 of these proteins was validated by enzyme-linked immunosorbent assay (ELISA) in clinical samples. A sera sample from a PQ poisoning patient has shown relatively increased abundance of S100A8 and S100A9. The overexpression of S100A8 and S100A9 was further validated in the lung tissue of PQ-treated rat associated with lung damage. Meanwhile, we identified another two down-expressed proteins, transferrin receptor protein 1 (TfR1) and serum amyloid P-component (SAP), which may be also practicable in human clinical samples as PQ poisoning serum biomarkers. Furthermore, receiver operating characteristic curve analysis confirmed that the expression levels of S100 alarmins, TfR1 and SAP in patient serum could provide a discriminatory diagnostic test for predicting PQ poisoning in patients. Therefore, our results suggest that increased serum levels of S100 alarmins and decreased serum levels of TfR1 and SAP may constitute potential biomarkers for the prediction of PQ poisoning in humans, and might be novel therapeutic targets in PQ poisoning.
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Affiliation(s)
- Liming Wei
- Institutes of Biomedical Sciences & Department of Chemistry, Fudan University Shanghai China
- Shanghai Songjiang District Central Hospital Shanghai China
| | - Yi Wang
- Institutes of Biomedical Sciences & Department of Chemistry, Fudan University Shanghai China
| | - Ling Lin
- Institutes of Biomedical Sciences & Department of Chemistry, Fudan University Shanghai China
| | - Lei Zhang
- Institutes of Biomedical Sciences & Department of Chemistry, Fudan University Shanghai China
| | - Yan Shi
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice Shanghai China
| | - Ping Xiang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice Shanghai China
| | - Shujun Cao
- Shanghai Songjiang District Central Hospital Shanghai China
| | - Min Shen
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice Shanghai China
| | - Pengyuan Yang
- Institutes of Biomedical Sciences & Department of Chemistry, Fudan University Shanghai China
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17
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El-Kashef N, Gomes I, Mercer-Chalmers-Bender K, Schneider PM, Rothschild MA, Juebner M. Comparative proteome analysis for identification of differentially abundant proteins in SIDS. Int J Legal Med 2017; 131:1597-1613. [DOI: 10.1007/s00414-017-1632-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 07/04/2017] [Indexed: 12/01/2022]
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18
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Son G, Lee JS, Lee S, Sohn J. Epiretinal Proliferation Associated with Macular Hole and Intraoperative Perifoveal Crown Phenomenon. KOREAN JOURNAL OF OPHTHALMOLOGY 2016; 30:399-409. [PMID: 27980358 PMCID: PMC5156613 DOI: 10.3341/kjo.2016.30.6.399] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 02/03/2016] [Indexed: 11/23/2022] Open
Abstract
Purpose To discuss the unique morphology and origin of epiretinal proliferation associated with macular hole (EPMH) occasionally observed in full-thickness macular hole (FT-MH) or lamellar hole (LH) and to introduce the perifoveal crown phenomenon encountered when removing this unusual proliferative tissue. Methods Sixteen patients showing EPMH in spectral domain-optical coherence tomography were selected from 212 patients diagnosed with MH, LH, FT-MH, impending MH, macular pseudohole, or epiretinal membrane between January 2013 and December 2014. Of the 212 patients included for clinical analysis, 33, 23, 11, 7, and 190 exhibited LH, FT-MH, impending MH, macular pseudohole, and epiretinal membrane, respectively. We reviewed visual acuity, macular morphology, and clinical course. Surgical specimens were analyzed histologically. Results EPMH presented as an amorphous proliferation starting from the defective inner/outer segment (IS/OS) junction covering the inner macula surface. Among the 16 patients with EPMH, 11 underwent vitrectomy, and all exhibited the intraoperative perifoveal crown phenomenon. EPMH tissue was sampled in three patients, one of whom had more tissue removed than intended and showed delayed recovery in visual acuity. Despite hole closure, IS/OS junction integrity was not successfully restored in four of 11 patients. Five patients were followed-up without surgical intervention. Visual acuity slightly decreased in three patients and did not change in one patient, while the remaining patient was lost during follow-up. Among the three perifoveal crown tissues obtained, two were successfully analyzed histologically. Neither tissue showed positivity to synaptophysin or S-100 protein, but one showed positivity to cytokeratin protein immunohistochemical staining. Conclusions EPMH exhibited a distinct but common configuration in spectral domain-optical coherence tomography. An epithelial proliferation origin is plausible based on its configuration and histological analysis. Perifoveal crown phenomenon was observed when removing EPMH during vitrectomy.
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Affiliation(s)
- Gisung Son
- Department of Ophthalmology, HanGil Eye Hospital, Incheon, Korea
| | - Ji Shin Lee
- Department of Pathology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Suchan Lee
- Department of Ophthalmology, HanGil Eye Hospital, Incheon, Korea
| | - Joonhong Sohn
- Department of Ophthalmology, HanGil Eye Hospital, Incheon, Korea
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19
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Buckland-Nicks JA. New details of the neural architecture of the salmonid adipose fin. JOURNAL OF FISH BIOLOGY 2016; 89:1991-2003. [PMID: 27501745 DOI: 10.1111/jfb.13098] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/28/2016] [Indexed: 06/06/2023]
Abstract
The adipose fin of salmonids, once widely regarded as vestigial and lacking in function, was shown to be important to swimming efficiency in juvenile brown trout Salmo trutta. Examination with confocal microscopy of adipose fins of S. trutta stained with various antibodies targeting the nervous system revealed several large nerves entering the fin and anastomosing throughout its length. The branching nerves form a plexus with specific patterns of fine terminal branches in the leading and trailing edges. A network of astrocyte-like cells (ALCs) that is linked through cell processes to nerves and structural collagen reacted positively with antibodies to glial cells. No other fish fins, including other adipose fins, have been shown to exhibit this type of neural architecture. Many vertebrate mechanoreceptors rely on collagen deformation to stimulate responses in afferent nerves; similarly, the adipose fin also may function as a mechanosensor, where passive mechanical deflection by water currents stimulates afferent nerves.
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Affiliation(s)
- J A Buckland-Nicks
- Department of Biology, St Francis Xavier University, Antigonish, NS, B2G 2W5, Canada.
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20
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Pálfy G, Kiss B, Nyitray L, Bodor A. Multilevel Changes in Protein Dynamics upon Complex Formation of the Calcium-Loaded S100A4 with a Nonmuscle Myosin IIA Tail Fragment. Chembiochem 2016; 17:1829-1838. [PMID: 27418229 DOI: 10.1002/cbic.201600280] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Indexed: 11/11/2022]
Abstract
Dysregulation of Ca2+ -binding S100 proteins plays important role in various diseases. The asymmetric complex of Ca2+ -bound S100A4 with nonmuscle myosin IIA has high stability and highly increased Ca2+ affinity. Here we investigated the possible causes of this allosteric effect by NMR spectroscopy. Chemical shift-based secondary-structure analysis did not show substantial changes for the complex. Backbone dynamics revealed slow-timescale local motions in the H1 helices of homodimeric S100A4; these were less pronounced in the complex form and might be accompanied by an increase in dimer stability. Different mobilities in the Ca2+ -coordinating EF-hand sites indicate that they communicate by an allosteric mechanism operating through changes in protein dynamics; this must be responsible for the elevated Ca2+ affinity. These multilevel changes in protein dynamics as conformational adaptation allow S100A4 fine-tuning of its protein-protein interactions inside the cell during Ca2+ signaling.
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Affiliation(s)
- Gyula Pálfy
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1 A, 1117, Budapest, Hungary
| | - Bence Kiss
- Department of Biochemistry, Eötvös Loránd University, Pázmány Péter sétány 1/C, 1117, Budapest, Hungary
| | - László Nyitray
- Department of Biochemistry, Eötvös Loránd University, Pázmány Péter sétány 1/C, 1117, Budapest, Hungary.
| | - Andrea Bodor
- Laboratory of Structural Chemistry and Biology, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1 A, 1117, Budapest, Hungary.
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21
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Hong W, Zhao M, Li H, Peng F, Wang F, Li N, Xiang H, Su Y, Huang Y, Zhang S, Zhao G, Zhou R, Mao L, Lin Z, Fang Y, Zhang Q, Xie B. Higher Plasma S100B Concentrations in Schizophrenia Patients, and Dependently Associated with Inflammatory Markers. Sci Rep 2016; 6:27584. [PMID: 27279465 PMCID: PMC4899785 DOI: 10.1038/srep27584] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 05/16/2016] [Indexed: 02/07/2023] Open
Abstract
Glial damage and immune dysfunction are involved in pathogenesis of schizophrenia. However, interaction between glial damage and immune dysfunction in schizophrenia is undefined. This study aims to compare plasma S100 calcium binding protein (S100B) levels between schizophrenia patients and healthy participants, and to determine if immune markers are independently related with concentration of S100B in schizophrenia patients. Forty-one schizophrenia patients and thirty-three healthy volunteers were enrolled. Enzyme-linked immunosorbent assay (ELISA) was used to assess the concentrations of plasma S100B and inflammatory markers. We found that concentrations of S100B were elevated in schizophrenia patients than healthy participants (p < 0.05), and were negatively related with the severity of symptoms (p = 0.046). Receiver operating characteristic (ROC) curve analysis showed that different S100B levels between schizophrenia and healthy participants can be used as a clinical diagnostic factor (predictive value: 0.666, p = 0.015). Multiple linear regression analysis found that length of illness (Beta = −0.161), plasma levels of inflammatory regulation factors (including TGF-β1, logIL-23 and logIL-10) (Beta = 0.119, 0.475, 0.514) were independently associated with concentrations of S100B (Adjusted R2 = 0.897, p < 0.001). Therefore, our results suggest the possible function of S100B in pathogenesis of schizophrenia, and implicate the important role of autoimmune response and balance to glial dysfunction in patients with schizophrenia.
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Affiliation(s)
- Wu Hong
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Min Zhao
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Haozhe Li
- Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai, 200063, China.,Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Fanglan Peng
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Fan Wang
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Ningning Li
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Hui Xiang
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yousong Su
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yueqi Huang
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Shengyu Zhang
- Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai, 200063, China
| | - Guoqin Zhao
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Rubai Zhou
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Ling Mao
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China.,XuHui District Mental Health Center of Shanghai, Shanghai, 200232, China
| | - Zhiguang Lin
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yiru Fang
- Division of Mood Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Qinting Zhang
- Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, Shanghai, 200063, China.,Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Bin Xie
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
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Lakomá J, Donadio V, Liguori R, Caprini M. Characterization of Human Dermal Fibroblasts in Fabry Disease. J Cell Physiol 2016; 231:192-203. [PMID: 26058984 DOI: 10.1002/jcp.25072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 06/05/2015] [Indexed: 12/14/2022]
Abstract
Fabry disease (FD) is a hereditary X-linked metabolic lysosomal storage disorder due to insufficient amounts or a complete lack of the lysosomal enzyme α-galactosidase A (α-GalA). The loss of α-GalA activity leads to an abnormal accumulation of globotriaosylcerami (Gb3) in lysosomes and other cellular components of different tissues and cell types, affecting the cell function. However, whether these biochemical alterations also modify functional processes associated to the cell mitotic ability is still unknown. The goal of the present study was to characterize lineages of human dermal fibroblasts (HDFs) of FD patients and healthy controls focusing on Gb3 accumulation, expression of chloride channels that regulate proliferation, and proliferative activity. The biochemical and functional analyses indicate the existence of quantitative differences in some but not all the parameters of cytoskeletal organization, proliferation, and differentiation processes.
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Affiliation(s)
- Jarmila Lakomá
- Laboratory of Human General Physiology, Department of Pharmacy Biotechnology FaBiT, University of Bologna, Bologna, Italy
| | - Vincenzo Donadio
- IRCCS Institute of Neurological Sciences, AUSL Bologna, Bologna, Italy
| | - Rocco Liguori
- IRCCS Institute of Neurological Sciences, AUSL Bologna, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, Bologna, Italy
| | - Marco Caprini
- Laboratory of Human General Physiology, Department of Pharmacy Biotechnology FaBiT, University of Bologna, Bologna, Italy
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Ambrée O, Bergink V, Grosse L, Alferink J, Drexhage HA, Rothermundt M, Arolt V, Birkenhäger TK. S100B Serum Levels Predict Treatment Response in Patients with Melancholic Depression. Int J Neuropsychopharmacol 2015; 19:pyv103. [PMID: 26364276 PMCID: PMC4815471 DOI: 10.1093/ijnp/pyv103] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/03/2015] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND There is an ongoing search for biomarkers in psychiatry, for example, as diagnostic tools or predictors of treatment response. The neurotrophic factor S100 calcium binding protein B (S100B) has been discussed as a possible predictor of antidepressant response in patients with major depression, but also as a possible biomarker of an acute depressive state. The aim of the present study was to study the association of serum S100B levels with antidepressant treatment response and depression severity in melancholically depressed inpatients. METHODS After a wash-out period of 1 week, 40 inpatients with melancholic depression were treated with either venlafaxine or imipramine. S100B levels and Hamilton Depression Rating Scale (HAM-D) scores were assessed at baseline, after 7 weeks of treatment, and after 6 months. RESULTS Patients with high S100B levels at baseline showed a markedly better treatment response defined as relative reduction in HAM-D scores than those with low baseline S100B levels after 7 weeks (P=.002) and 6 months (P=.003). In linear regression models, S100B was a significant predictor for treatment response at both time points. It is of interest to note that nonresponders were detected with a predictive value of 85% and a false negative rate of 7.5%. S100B levels were not associated with depression severity and did not change with clinical improvement. CONCLUSIONS Low S100B levels predict nonresponse to venlafaxine and imipramine with high precision. Future studies have to show which treatments are effective in patients with low levels of S100B so that this biomarker will help to reduce patients' burden of nonresponding to frequently used antidepressants.
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Affiliation(s)
- Oliver Ambrée
- Department of Psychiatry, University of Münster, Germany (Dr Ambrée, Ms Grosse, Dr Alferink, Dr Rothermundt, and Dr Arolt); Department of Psychiatry, Erasmus Medical Center Rotterdam, The Netherlands (Drs Bergink and Birkenhäger); Radiology Morphological Solutions, Rotterdam, The Netherlands (Ms Grosse); Department of Immunology, Erasmus Medical Center Rotterdam, The Netherlands (Dr Drexhage); Cluster of Excellence EXC 1003, Cells in Motion, Münster, Germany (Dr Alferink); Department of Psychiatry, St. Rochus-Hospital, Telgte, Oberhausen, Germany (Dr Rothermundt).
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Grzegorzewski A, Synder M, Modrzewski T, Drobniewski M, Polguj M, Sibiński M. NERVE ENDINGS AND VASCULAR SUPPLY IN SEMITENDINOSUS TENDON OF CEREBRAL PALSY CHILDREN. ACTA ORTOPEDICA BRASILEIRA 2015; 23:259-62. [PMID: 26981034 PMCID: PMC4775478 DOI: 10.1590/1413-785220152305142813] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Objective: To evaluate the distribution of SP (substance P) and S-100 peptide immunoreactivity, as well as the vascular supply of tissues commonly used as grafts for anterior cruciate ligament (ACL) reconstruction. A second aim was to compare the above mentioned distribution in the semitendinosus muscle tendons of cerebral palsy (CP) patients with the semitendinosus muscle tendons and patellar tendons of patients without CP. Methods: The first group consisted of 14 children with cerebral palsy with a mean age of 11.7 years old. At the time of hamstring lengthening operation, a sample of semitendinosus muscle was taken for analysis. The second group comprised 20 patients treated for isolated ACL rupture of the knee (mean age 32 years old). Group three comprised ten patients in the mean age of 14.3 years old treated for recurrent lateral patellar dislocation, and from whom a sample of patellar tendon was obtained. Results: No statistically significant differences were demonstrated with regard to the amount of immunopositive nerve fibers expressing SP or S-100 in all 3 groups of patients. A significant difference was noted in the number of blood vessels between the adult and child semitendinosus muscles, but not between the semitendinosus muscles and patellar tendon of children. Conclusion: The number of nociceptors as well as proprioceptive fibers is similar in patients with CP and patients from a neurologically healthy population. Level of Evidence IV, Cases Series.
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Circulating S100B and Adiponectin in Children Who Underwent Open Heart Surgery and Cardiopulmonary Bypass. BIOMED RESEARCH INTERNATIONAL 2015; 2015:402642. [PMID: 26417594 PMCID: PMC4568346 DOI: 10.1155/2015/402642] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/26/2014] [Indexed: 02/04/2023]
Abstract
Background. S100B protein, previously proposed as a consolidated marker of brain damage in congenital heart disease (CHD) newborns who underwent cardiac surgery and cardiopulmonary bypass (CPB), has been progressively abandoned due to S100B CNS extra-source such as adipose tissue. The present study investigated CHD newborns, if adipose tissue contributes significantly to S100B serum levels. Methods. We conducted a prospective study in 26 CHD infants, without preexisting neurological disorders, who underwent cardiac surgery and CPB in whom blood samples for S100B and adiponectin (ADN) measurement were drawn at five perioperative time-points. Results. S100B showed a significant increase from hospital admission up to 24 h after procedure reaching its maximum peak (P < 0.01) during CPB and at the end of the surgical procedure. Moreover, ADN showed a flat pattern and no significant differences (P > 0.05) have been found all along perioperative monitoring. ADN/S100B ratio pattern was identical to S100B alone with the higher peak at the end of CPB and remained higher up to 24 h from surgery. Conclusions. The present study provides evidence that, in CHD infants, S100B protein is not affected by an extra-source adipose tissue release as suggested by no changes in circulating ADN concentrations.
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Serpero LD, Pluchinotta F, Gazzolo D. The clinical and diagnostic utility of S100B in preterm newborns. Clin Chim Acta 2015; 444:193-8. [PMID: 25704302 DOI: 10.1016/j.cca.2015.02.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 02/06/2015] [Accepted: 02/14/2015] [Indexed: 11/18/2022]
Abstract
Preterm birth is still the most important cause of perinatal mortality and morbidity. Follow-up studies showed that the majority of neurological abnormalities during childhood are already present in the first week after birth. In this light, the knowledge of the timing of the insult and/or of the contributing factors is of utmost relevance in order to avoid adverse neurological outcome. Notwithstanding, the considerable advances in perinatal clinical care and monitoring, the early detection of cases at risk for brain damage is still a challenge because, when radiological pictures are still negative, brain damage may be already at a subclinical stage, with symptoms hidden by therapeutic strategies. Thus, it could be very relevant to measure quantitative parameters, such as neuroproteins, able to detect subclinical lesions at a stage when routine brain monitoring procedures are still silent. In the last decade, the assay of the brain-specific protein S100B in different biological fluids proved useful information on brain function and damage in the perinatal period. Therefore, the present study provides an overview of the most recent findings on S100B role as a reliable marker of brain development/damage in preterm high risk fetuses and newborns.
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Affiliation(s)
- Laura D Serpero
- Dept. of Maternal Fetal and Neonatal Medicine C. Arrigo Children's Hospital, Alessandria, Italy
| | - Francesca Pluchinotta
- Dept. of Pediatric Cardiovascular Surgery, IRCCS San Donato Milanese Hospital, San Donato Milanese, Italy
| | - Diego Gazzolo
- Dept. of Maternal Fetal and Neonatal Medicine C. Arrigo Children's Hospital, Alessandria, Italy.
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Sun P, Li Q, Zhang Q, Xu L, Han JY. Upregulated expression of S100A8 in mice brain after focal cerebral ischemia reperfusion. World J Emerg Med 2014; 4:210-4. [PMID: 25215121 PMCID: PMC4129849 DOI: 10.5847/wjem.j.issn.1920-8642.2013.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 07/23/2013] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND: Recent studies have showed that S100A8 has been implicated in the pathobiology of inflammatory disorders, and that cerebral ischemia reperfusion (I/R) rapidly activates inflammation responses via Toll-like receptor 4 (TLR4). This study aimed to explore the expression of S100A8 and the relationship between S100A8 and TLR4 in focal cerebral ischemia reperfusion injury. METHODS: C3H/HeJ mice (n=30) and C3H/HeN mice (n=30) were divided randomly into a C3H/HeJ model group (n=18), a C3H/HeJ control group (n=12), a C3H/HeN model group (n=18), and a C3H/HeN control group (n=12). Middle cerebral artery I/R model in mice was produced using a thread embolism method. The brains of the mice were collected after ischemia for 1 hour and reperfusion for 12 hours. Stroke outcome was evaluated by determination of infarct volume and assessment of neurological impairment scores. Brain injury after cerebral I/R was observed by an optical microscope after TTC and HE dyeing. The immunofluorescence technique and real time PCR were used to test the expression level of S100A8 in brain damage. RESULTS: Compared with C3H/HeN mice, TLR4-deficient mice (C3H/HeJ) had lower infarct volumes and better outcomes in neurological tests. The levels of S100A8 increased sharply in the brains of mice after I/R injury. In addition, mice that lacked TLR4 (C3H/HeJ) had lower expression of I/R-induced S100A8 than C3H/HeN mice in the model group, indicating that a close relationship might exist between the levels of S100A8 and TLR4. CONCLUSION: S100A8 interaction with TLR4 might be involved in brain damage and in inflammation triggered by I/R injury.
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Affiliation(s)
- Peng Sun
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qian Li
- Department of Emergency Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430077, China
| | - Qing Zhang
- Department of Anesthesiology,Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Li Xu
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ji-Yuan Han
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Masłoń A, Witoński D, Modrzewski T, Grabicki M, Sibiński M, Grzegorzewski A. Phenomenon of painless knee in recurrent patellar dislocation in children. Arch Med Sci 2014; 10:531-6. [PMID: 25097585 PMCID: PMC4107259 DOI: 10.5114/aoms.2014.43747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 03/21/2012] [Accepted: 05/11/2012] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION Cartilage lesion with patellar malalignment may be correlated with pain. Situations in which patients with recurrent patellar dislocation are painless between episodes of luxation can be approached with considerable curiosity. We evaluated the distribution of substance-P and S-100 protein expression in soft tissue of the knee in children with recurrent patellar dislocation, in order to evaluate the distribution of nociceptors and determine tissue origins of this situation. MATERIAL AND METHODS Samples were collected from the medial and lateral synovial membrane, medial and lateral patellar retinaculum, Hoffa's body, patellar ligament, and quadriceps' aponeurosis in 10 children during the Blauth procedure and 10 adults with idiopathic osteoarthritis during total joint alloplasty. The density of nociceptive fibres was compared in the children and adults using S-100 and substance-P monoclonal antibodies. RESULTS Statistical differences between groups were demonstrated for S-100 expression in synovial membrane of the medial knee compartment (p < 0.05) and for substance-P expression in the medial patellar retinaculum (p < 0.05) and synovial membrane of the lateral (p < 0.05) and medial (p < 0.05) knee compartment in favour of children. CONCLUSIONS Lack of pain sensations in patients with recurrent patellar dislocation may be associated with non-increased expression of nerve endings in Hoffa's body. Increased expression of either S-100 protein or substance-P in synovial membrane and the medial retinaculum did not induce pain development in the knee joints of that group of patients.
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Affiliation(s)
- Adrian Masłoń
- Clinic of Orthopaedics and Paediatric Orthopaedics, Medical University of Lodz, Poland
| | - Dariusz Witoński
- Department of Reconstructive Surgery and Arthroscopy of the Knee, Medical University of Lodz, Poland
| | - Tadeusz Modrzewski
- Pathomorphology and Clinical Cytopathology Department, Medical University of Lodz, Poland
| | - Mateusz Grabicki
- Orthopaedic Department, Kopernik Memorial Regional Specialized Hospital, Lodz, Poland
| | - Marcin Sibiński
- Clinic of Orthopaedics and Paediatric Orthopaedics, Medical University of Lodz, Poland
| | - Andrzej Grzegorzewski
- Clinic of Orthopaedics and Paediatric Orthopaedics, Medical University of Lodz, Poland
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Choi WS, Oh YJ. Calbindin-D28K Prevents Staurosporin-induced Bax Cleavage and Membrane Permeabilization. Exp Neurobiol 2014; 23:173-7. [PMID: 24963283 PMCID: PMC4065832 DOI: 10.5607/en.2014.23.2.173] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 03/20/2014] [Accepted: 03/21/2014] [Indexed: 11/19/2022] Open
Abstract
Calbindin-D28K has been implicated in the regulation of neuronal cell death. Previously, we demonstrated that calbindin-D28K prevents staurosporine (STS)-induced caspase activation and subsequent apoptosis in a neuronal cell line. However, the role of calbindin-D28K in STS-induced activation of calpain and necrotic cell death was not identified. Staurosporine induced the elevation of intracellular calcium after 1 hr of treatment. Overexpression of calbindin-D28K and presence of a calcium chelator, BAPTA, prevented the increase of calcium in STS-treated cells. Cleavage of Bax by calpain was prevented by the overexpressed calbindin-D28K. Permeabilization of the plasma membrane, a factor in necrosis, as well as apoptotic change of the nucleolus induced by STS, was prevented by calbindin-D28K. Thus, our study suggests that calbindin-D28K may exert its protective functions by preventing calpain activation in necrotic cell death, in addition to its effect on the caspase-apoptosis pathway.
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Affiliation(s)
- Won-Seok Choi
- School of Biological Sciences and Technology, College of Natural Sciences, College of Medicine, Chonnam National University, Gwangju 500-757, Korea. ; Department of Biology, Yonsei University College of Life Science and Biotechnology, Seoul 120-749, Korea
| | - Young J Oh
- Department of Biology, Yonsei University College of Life Science and Biotechnology, Seoul 120-749, Korea
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Macedo RCD, Tomasi CD, Giombelli VR, Alves SC, Bristot MDLU, Locks MFT, Petronilho F, Grandi C, Quevedo J, Dal-Pizzol F, Ritter C. Lack of association of S100β and neuron-specific enolase with mortality in critically ill patients. BRAZILIAN JOURNAL OF PSYCHIATRY 2014; 35:267-70. [PMID: 24142088 DOI: 10.1590/1516-4446-2012-0835] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 05/15/2012] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To evaluate the relationship between brain damage biomarkers and mortality in the intensive care unit (ICU). METHODS The sample comprised 70 patients admitted to an ICU. Blood samples were collected from all patients on ICU admission, and levels of S100β and neuron-specific enolase (NSE) were determined by ELISA. RESULTS Acute Physiologic and Chronic Health Evaluation (APACHE II) score was associated with mortality, but NSE and S100β were not associated with this outcome. In contrast, S100β levels were significantly higher in delirious and non-delirious patients who required mechanical ventilation during ICU stay. CONCLUSION Levels of brain biomarkers at the time of ICU admission did not predict mortality in critically ill patients.
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Affiliation(s)
- Roberta Candal de Macedo
- National Science and Technology Institute for Translational Medicine, Laboratory of Experimental Pathophysiology, CriciúmaSC, Brazil
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Risso FM, Serpero LD, Zimmermann LJI, Gavilanes AWD, Frulio R, Michetti F, Florio P, Bashir M, Iskander I, Mufeed H, Aboulgar H, Gazzolo D. Urine S100 BB and A1B dimers are valuable predictors of adverse outcome in full-term asphyxiated infants. Acta Paediatr 2013; 102:e467-72. [PMID: 23826805 DOI: 10.1111/apa.12343] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 05/20/2013] [Accepted: 07/01/2013] [Indexed: 11/27/2022]
Abstract
AIM To investigate whether S100A1B and BB dimers are predictors of early perinatal death in newborns with perinatal asphyxia (PA). METHODS The study compared 38 full-term newborns with PA [neonatal death n = 11; hypoxic ischaemic encephalopathy (HIE): n = 27] with a control group of 38 healthy infants. Clinical and laboratory parameters were recorded at eight time points and urine collected for S100B assessment. Multivariate analysis was performed in order to analyse the influence of various clinical parameters on the occurrence of neonatal death. RESULTS A1B and BB in PA nonsurvivor infants were significantly higher (p < 0.001) than in controls at all monitoring time points. BB at first void (cut-off>42 ng/L) was the best predictor of early neonatal death (p < 0.05) of all the clinical and laboratory parameters studied. CONCLUSION These results suggest that S100s are valuable predictors of adverse outcome in PA infants. It is also suggested that these biomarkers be used in daily clinical practice, due to their low cost and stress, reproducibility and the possibility of longitudinal monitoring.
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Affiliation(s)
- Francesco M Risso
- Department of Neonatology; G Gaslini Children's University Hospital; Genoa; Italy
| | - Laura D Serpero
- Department of Neurology Ophthalmology and Genetics; Genoa University; Genoa; Italy
| | - Luc JI Zimmermann
- Department of Pediatrics and Neonatology; School for Oncology and Developmental Biology; Maastricht University Medical Center; Maastricht; The Netherlands
| | - Antonio WD Gavilanes
- Department of Pediatrics and Neonatology; School for Oncology and Developmental Biology; Maastricht University Medical Center; Maastricht; The Netherlands
| | - Rosanna Frulio
- Institute of Anatomy and Molecular Biology; Catholic University; Rome; Italy
| | - Fabrizio Michetti
- Institute of Anatomy and Molecular Biology; Catholic University; Rome; Italy
| | - Pasquale Florio
- Department of Pediatrics Obstetrics and Reproductive Medicine; University of Siena; Siena; Italy
| | - Moataza Bashir
- Department of Neonatology; University of Cairo; Cairo; Egypt
| | - Iman Iskander
- Department of Neonatology; University of Cairo; Cairo; Egypt
| | - Hala Mufeed
- Department of Neonatology; University of Cairo; Cairo; Egypt
| | - Hanna Aboulgar
- Department of Neonatology; University of Cairo; Cairo; Egypt
| | - Diego Gazzolo
- Department of Maternal Fetal and Neonatal Medicine; C. Arrigo Children's Hospital; Alessandria; Italy
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Effects of restraint stress on glial activity in the rostral ventromedial medulla. Neuroscience 2013; 241:10-21. [DOI: 10.1016/j.neuroscience.2013.03.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 03/08/2013] [Accepted: 03/11/2013] [Indexed: 12/24/2022]
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Michetti F, Corvino V, Geloso MC, Lattanzi W, Bernardini C, Serpero L, Gazzolo D. The S100B protein in biological fluids: more than a lifelong biomarker of brain distress. J Neurochem 2012; 120:644-59. [PMID: 22145907 DOI: 10.1111/j.1471-4159.2011.07612.x] [Citation(s) in RCA: 173] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
S100B is a calcium-binding protein concentrated in glial cells, although it has also been detected in definite extra-neural cell types. Its biological role is still debated. When secreted, S100B is believed to have paracrine/autocrine trophic effects at physiological concentrations, but toxic effects at higher concentrations. Elevated S100B levels in biological fluids (CSF, blood, urine, saliva, amniotic fluid) are thus regarded as a biomarker of pathological conditions, including perinatal brain distress, acute brain injury, brain tumors, neuroinflammatory/neurodegenerative disorders, psychiatric disorders. In the majority of these conditions, high S100B levels offer an indicator of cell damage when standard diagnostic procedures are still silent. The key question remains as to whether S100B is merely leaked from injured cells or is released in concomitance with both physiological and pathological conditions, participating at high concentrations in the events leading to cell injury. In this respect, S100B levels in biological fluids have been shown to increase in physiological conditions characterized by stressful physical and mental activity, suggesting that it may be physiologically regulated and raised during conditions of stress, with a putatively active role. This possibility makes this protein a candidate not only for a biomarker but also for a potential therapeutic target.
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Affiliation(s)
- Fabrizio Michetti
- Institute of Anatomy and Cell Biology, Università Cattolica Sacro Cuore, Roma, Italy.
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Serum S100B in pregnancy complicated by preeclampsia: A case-control study. Pregnancy Hypertens 2011; 2:101-5. [PMID: 26105095 DOI: 10.1016/j.preghy.2011.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2011] [Revised: 07/17/2011] [Accepted: 11/30/2011] [Indexed: 11/21/2022]
Abstract
BACKGROUND Serum S100B is a protein produced and released primarily by astrocytes of the Central Nervous System (CNS). Elevated levels of serum S100B are associated with several types of pathological conditions of the brain, including the eclampsia in pregnant women. The aim of this study was to compare serum S100B concentrations in pregnant women with severe and mild preeclampsia (PE) with S100B serum levels in normotensive pregnant women. MATERIAL AND METHODS Serum S100B protein was measured in normotensive pregnant women (n=15) and in women with mild PE (n=12) or severe PE (n=34). The serum S100B level (μg/L) was determined by an luminometric assay. RESULTS Sixty-one expectant mothers were studied, aged 26.6±8.7 (mean±SD) years and with a gestational age of 33.3±4.2 weeks. The severe PE group demonstrated higher S100B levels (0.20±0.19), as compared with mild PE (0.07±0.05) or normotensive groups (0.04±0.05). CONCLUSION Elevated serum S100B levels in pregnant women with severe PE suggest that some kind of neural damage and subsequent astrocytic release of S100B is not dependent on the progression from severe preeclampsia to eclampsia.
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Metcalfe R, Freemont T. Variations in immunohistochemical preservation of proteins in a mummification model. J Anat 2011; 220:112-5. [PMID: 22050406 DOI: 10.1111/j.1469-7580.2011.01442.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Immunohistochemistry is an important tool in the investigation of ancient mummified remains because of its ability not only to detect proteins but also to isolate their location to specific tissues and thereby improve confidence that the results are genuine. A mouse model of Egyptian mummification has been used to demonstrate that the survival of proteins, judged by the retention of immunohistochemical staining, varies markedly. Some survive the process well, whereas others become barely detectable despite the morphology of the tissue being excellently preserved. The results obtained show that protein preservation is multi-factorial, with tissue type and degradation, and the properties of the protein itself all having significant effects. Proteins forming large, multi-subunit complexes such as collagen IV appear to be more resistant to degradation than those that do not, such as S-100. Although modern modelling studies cannot replicate the full extent of degradative processes and taphonomic changes experienced by real mummies, the results obtained can be useful for guiding research that requires ancient tissues.
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Affiliation(s)
- Ryan Metcalfe
- KNH Centre for Biomedical Egyptology, University of Manchester, Manchester, UK.
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Association of CSF biomarkers and secondary insults following severe traumatic brain injury. Neurocrit Care 2011; 14:200-7. [PMID: 21210304 DOI: 10.1007/s12028-010-9496-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Management of severe traumatic brain injury (TBI) focuses on mitigating secondary insults. There are a number of biomarkers that are thought to play a part in secondary injury following severe TBI. Two of these, S100β and neuron-specific enolase (NSE), have been extensively studied in the setting of neurological injury. This pilot study was undertaken to investigate the relationship of S100β and NSE to clinical markers of severity and poor outcome: intracranial hypertension (ICH), and cerebral hypoperfusion (CH). METHODS Patients at the R Adams Cowley Shock Trauma Center were prospectively enrolled over an 18-month period. Inclusion criteria were: age > 18, admission within the first 6 h after injury, Glasgow Coma Scale (GCS) < 9 on admission, isolated TBI, and placement of an intraventricular catheter (IVC). Patients were managed according to an institutional protocol based on the Brain Trauma Foundation Guidelines. CSF was collected from the IVC on admission and twice daily for 7 days. S100β and NSE levels were analyzed by ELISA. CSF levels drawn before (PRE) and after (POST) 12-h time periods were compared to percentage time intracranial pressure (ICP) > 20 mmHg (% ICP(20)) and cerebral perfusion pressure (CPP) < 60 mmHg (% CPP(60)), and cumulative "Pressure times Time Dose" (PTD) for episodes of ICP > 20 mmHg (PTD ICP(20)) and CPP < 60 mmHg (PTD CPP(60)). Statistical analysis was performed using the Student's t test to compare means and non-parametric Wilcoxon statistic to compare ranked data. Linear regression methods were applied to compare levels of S100β and NSE with ICP and CPP(.) RESULTS Twenty-three patients were enrolled. The cohort of patients was severely injured and neurologically compromised on admission (admission GCS = 5.6 ± 3.1, Injury Severity Score (ISS) = 31.9 ± 10.6, head Abbreviated Injury Scale (AIS) = 4.4 ± 0.7, Marshall score = 2.6 ± 0.9). Elevated levels of S100β and NSE were found in all 223 CSF samples analyzed. ICH was found to be associated with PRE and POST S100β levels when measured as % ICP(20) (r = 0.20 and r = 0.23, P < 0.01) and PTD ICP(20) (r = 0.35 and r = 0.26, P < 0.001). POST increasing NSE levels were weakly correlated with increasing PTD ICP(20) (r = 0.17, P = 0.01). PRE S100β levels were associated with episodes of CH as measured by % CPP(60) (r = 0.20, P = 0.002) and both PRE and POST S100β levels were associated with PTD CPP(60) (r = 0.24 and r = 0.23, P < 0.001). PRE and POST NSE levels were also associated with episodes of CH as measured by % CPP(60) (r = 0.22 and r = 0.18, P < 0.01) and PTD CPP(60) (r = 0.20 and r = 0.21, P < 0.01). CONCLUSIONS In this preliminary analysis, S100β levels were associated with ICH and CH over a full week of ICP monitoring. We also found associations between CH and NSE levels in CSF of patients with severe TBI. Our results suggest that there is an association between levels of ICH and CH and these biomarkers when measured before episodes of clinically significant secondary insults. These markers of neuronal cell death demonstrate promise as both indicators of impending clinical deterioration and targets of future therapeutic interventions.
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Epstein OI, Pavlov IF, Shtark MB. Improvement of Memory by Means of Ultra-Low Doses of Antibodies to S-100B Antigen. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 3:541-5. [PMID: 17173119 PMCID: PMC1697748 DOI: 10.1093/ecam/nel073] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2005] [Accepted: 09/14/2006] [Indexed: 12/28/2022]
Abstract
Antigen S-100B of nervous tissue, according to the data of numerous studies, affects the mechanisms of nervous system plasticity and memory. The influence of ultralow doses of antibodies to S-100B (6C dilution, according to the homeopathic pharmacopoeia) has been studied on three learning behavioral models on Wistar rats, which were inhibitory avoidance, choosing of bowls with sucrose and feeding behavior cessation after auditory signal. For all three tasks, parameters of reproduction of the learned skills improved after per oral administration of potentiated antibodies to S-100B antigen immediately after learning. Possible mechanisms of the anti-S-100B antibodies influence on memory formation are discussed.
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Cirillo C, Sarnelli G, Esposito G, Turco F, Steardo L, Cuomo R. S100B protein in the gut: The evidence for enteroglial-sustained intestinal inflammation. World J Gastroenterol 2011; 17:1261-6. [PMID: 21455324 PMCID: PMC3068260 DOI: 10.3748/wjg.v17.i10.1261] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Revised: 11/25/2010] [Accepted: 12/02/2010] [Indexed: 02/06/2023] Open
Abstract
Glial cells in the gut represent the morphological and functional equivalent of astrocytes and microglia in the central nervous system (CNS). In recent years, the role of enteric glial cells (EGCs) has extended from that of simple nutritive support for enteric neurons to that of being pivotal participants in the regulation of inflammatory events in the gut. Similar to the CNS astrocytes, the EGCs physiologically express the S100B protein that exerts either trophic or toxic effects depending on its concentration in the extracellular milieu. In the CNS, S100B overexpression is responsible for the initiation of a gliotic reaction by the release of pro-inflammatory mediators, which may have a deleterious effect on neighboring cells. S100B-mediated pro-inflammatory effects are not limited to the brain: S100B overexpression is associated with the onset and maintenance of inflammation in the human gut too. In this review we describe the major features of EGCs and S100B protein occurring in intestinal inflammation deriving from such.
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Mechanism of the Ca²+-dependent interaction between S100A4 and tail fragments of nonmuscle myosin heavy chain IIA. J Mol Biol 2010; 405:1004-26. [PMID: 21110983 PMCID: PMC3025356 DOI: 10.1016/j.jmb.2010.11.036] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 11/16/2010] [Accepted: 11/17/2010] [Indexed: 12/03/2022]
Abstract
The interaction between the calcium-binding protein S100A4 and the C-terminal fragments of nonmuscle myosin heavy chain IIA has been studied by equilibrium and kinetic methods. Using site-directed mutants, we conclude that Ca2+ binds to the EF2 domain of S100A4 with micromolar affinity and that the Kd value for Ca2+ is reduced by several orders of magnitude in the presence of myosin target fragments. The reduction in Kd results from a reduced dissociation rate constant (from 16 s− 1 to 0.3 s− 1 in the presence of coiled-coil fragments) and an increased association rate constant. Using peptide competition assays and NMR spectroscopy, we conclude that the minimal binding site on myosin heavy chain IIA corresponds to A1907-G1938; therefore, the site extends beyond the end of the coiled-coil region of myosin. Electron microscopy and turbidity assays were used to assess myosin fragment filament disassembly by S100A4. The latter assay demonstrated that S100A4 binds to the filaments and actively promotes disassembly rather than just binding to the myosin monomer and displacing the equilibrium. Quantitative modelling of these in vitro data suggests that S100A4 concentrations in the micromolar region could disassemble myosin filaments even at resting levels of cytoplasmic [Ca2+]. However, for Ca2+ transients to be effective in further promoting dissociation, the elevated Ca2+ signal must persist for tens of seconds. Fluorescence recovery after photobleaching of A431/SIP1 cells expressing green fluorescent protein–myosin IIA, immobilised on fibronectin micropatterns to control stress fibre location, yielded a recovery time constant of around 20 s, consistent with in vitro data.
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Abstract
BACKGROUND Children with head trauma are frequently seen in many emergency units. The clinical evaluation of these patients is difficult for a number of reasons and improved diagnostic tools are needed. S-100B, a protein found in glial cells, has previously been shown to be a sensible marker for brain damage after head injury in adults, but few studies have focused on its use in children. METHODS In this study, 111 children with head trauma were included and venous blood and urine samples were taken at arrival (S1 and U1) and 6 hours later (S2 and U2). S-100B levels were analyzed. Clinical and radiologic evaluations were performed according to hospital routine. Two groups were identified- group 1: no computed tomography (CT) scan performed ora CT scan without any sign of trauma-related intracranial pathology (n = 105). Group 2: A CT scan with signs of trauma-related intracranial pathology (n = 6). RESULTS In group 1, the median (inter quartile range) serum S-100B value in S1-samples was 0.111 microg/L (0.086-0.153), and in group 2, it was 0.282 microg/L (0.195-1.44) (p < 0.01). Also, S2 values significantly differed between the two groups. Urine values were, however, not significantly differing between the groups. CONCLUSIONS Serum S-100B values within 6 hours after head trauma in children were significantly higher in patients with intracranial pathology compared with those without intracranial complications. Identification of these high-risk patients already in the emergency department is of major importance, and we suggest that S-100B could be a valuable diagnostic tool in addition to those used in clinical practice today.
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Effects of S100B on Serotonergic Plasticity and Neuroinflammation in the Hippocampus in Down Syndrome and Alzheimer's Disease: Studies in an S100B Overexpressing Mouse Model. Cardiovasc Psychiatry Neurol 2010; 2010. [PMID: 20827311 PMCID: PMC2933893 DOI: 10.1155/2010/153657] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 06/01/2010] [Accepted: 07/02/2010] [Indexed: 12/17/2022] Open
Abstract
S100B promotes development and maturation in the mammalian brain. However, prolonged or extensive exposure can lead to neurodegeneration. Two important functions of S100B in this regard, are its role in the development and plasticity of the serotonergic neurotransmitter system, and its role in the cascade of glial changes associated with neuroinflammation. Both of these processes are therefore accelerated towards degeneration in disease processes wherein S100B is increased, notably, Alzheimer's disease (AD) and Down syndrome (DS).
In order to study the role of S100B in this context, we have examined S100B overexpressing transgenic mice. Similar to AD and DS, the transgenic animals show a profound change in serotonin innervation. By 28 weeks of age, there is a significant loss of terminals in the hippocampus. Similarly, the transgenic animals show neuroinflammatory changes analogous with AD and DS. These include decreased numbers of mature, stable astroglial cells, increased numbers of activated microglial cells and increased microglial expression of the cell surface receptor RAGE. Eventually, the S100B transgenic animals show neurodegeneration and the appearance of hyperphosphorylated tau structures, as seen in late stage DS and AD. The role of S100B in these conditions is discussed.
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Streicher WW, Lopez MM, Makhatadze GI. Modulation of quaternary structure of S100 proteins by calcium ions. Biophys Chem 2010; 151:181-6. [PMID: 20621410 DOI: 10.1016/j.bpc.2010.06.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2010] [Revised: 06/16/2010] [Accepted: 06/17/2010] [Indexed: 11/15/2022]
Abstract
It is well established that calcium binding leads to conformational changes in S100 proteins. These conformational changes are thought to activate the protein and render a protein conformation that is capable of binding other proteins. The basic quaternary structural motif of S100 proteins is a homodimer, however there is little information if higher order non-covalent oligomers are also formed and whether these oligomers are of functional relevance. To this end we performed equilibrium analytical ultracentrifugation experiments for 16 S100 proteins (S100A1, S100A2, S100A3, S100A4, S100A5, S100A6, S100A7, S100A8, S100A9, S100A10, S100A11, S100A12, S100A13, S100B, S100P, and S100Z) under reducing conditions in the absence and presence of calcium ions. We show that the addition of calcium promotes the formation of tetrameric structures which could be further enhanced under in vivo conditions where there is an additional effect of molecular crowding.
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Affiliation(s)
- Werner W Streicher
- Center for Biotechnology and Interdisciplinary Studies and Department of Biology, Rensselaer Polytechnic Institute, Troy, NY 12065, USA
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Perinatal S100B Protein Assessment in Human Unconventional Biological Fluids: A Minireview and New Perspectives. Cardiovasc Psychiatry Neurol 2010; 2010:703563. [PMID: 20634930 PMCID: PMC2903947 DOI: 10.1155/2010/703563] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Accepted: 05/03/2010] [Indexed: 11/18/2022] Open
Abstract
Growing evidence is now available on the use of S100B protein as a valuable marker of brain damage and its role as a neurotrophic factor. Bearing in mind, among different S100B protein properties that are still being investigated, the possibility of measuring this protein in different biological fluids renders it suitable for use in several disciplines. This is the case with perinatal medicine where even more noninvasive techniques are particularly desirable in order to ensure the minimal handling diagnostic and therapeutic strategies. In this setting, the present minireview reports data on the presence and the usefulness of S100B protein as brain damage marker and as a neurotrophic factor in the so-called unconventional biological fluids such as saliva and human milk, respectively. Results offer new possibilities for the use of S100B in perinatal medicine as a key-protein for the investigations focusing on central nervous system development and damage.
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Casiraghi G, Poli D, Landoni G, Buratti L, Imberti R, Plumari V, Turi S, Mennella R, Messina M, Covello RD, Carozzo A, Motta A, Zangrillo A. Intrathecal lactate concentration and spinal cord injury in thoracoabdominal aortic surgery. J Cardiothorac Vasc Anesth 2010; 25:120-6. [PMID: 20570182 DOI: 10.1053/j.jvca.2010.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate the role of lactate as an early predictor of spinal cord injury during thoracoabdominal aortic aneurysm repair. DESIGN Observational study. SETTING University hospital. PARTICIPANTS Sixteen consecutive patients (10 men and 6 women) scheduled to undergo thoracoabdominal aortic aneurysm repair were enrolled in the study. All patients were affected by atherosclerotic aneurysmal pathology. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS During surgery, the authors simultaneously withdrew samples of cerebrospinal fluid and arterial blood to evaluate pO(2), pCO(2), pH, and lactate concentration. Samples were collected at 5 fixed times during and after surgery: T1 (before aortic cross-clamping), T2 (15 minutes after clamping), T3 (just before unclamping), T4 (end of surgery), and T5 (4 hours after the end of surgery). Lactate levels in cerebrospinal fluid rose consistently during aortic cross-clamping (T1 = 1.89 mmol/L, T2 = 2.21 mmol/L, T3 = 2.88 mmol/L, T4 = 3.655 mmol/L, and T5 = 3.16 mmol/L). Lactate concentrations in the cerebrospinal fluid were significantly higher in the 4 patients who developed neurologic injury, even at T1 (before surgery), than in those who did not end in spinal cord injury with the 4 highest values belonging to the 4 patients who later developed spinal cord injury. CONCLUSIONS This study has the potential to elucidate the time course of early lactate level elevation during thoracoabdominal aortic aneurysm repair and its clinical use in predicting the development of postoperative spinal cord injury.
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van Dieck J, Brandt T, Teufel DP, Veprintsev DB, Joerger AC, Fersht AR. Molecular basis of S100 proteins interacting with the p53 homologs p63 and p73. Oncogene 2010; 29:2024-35. [PMID: 20140014 DOI: 10.1038/onc.2009.490] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
S100 proteins modulate p53 activity by interacting with its tetramerization (p53TET, residues 325-355) and transactivation (residues 1-57) domains. In this study, we characterized biophysically the binding of S100A1, S100A2, S100A4, S100A6 and S100B to homologous domains of p63 and p73 in vitro by fluorescence anisotropy, analytical ultracentrifugation and analytical gel filtration. We found that S100A1, S100A2, S100A4, S100A6 and S100B proteins bound different p63 and p73 tetramerization domain variants and naturally occurring isoforms with varying affinities in a calcium-dependent manner. Additional interactions were observed with peptides derived from the p63 and p73 N-terminal transactivation domains. Importantly, S100 proteins bound p63 and p73 with different affinities in their different oligomeric states, similarly to the differential modes of binding to p53. On the basis of our data, we hypothesize that S100 proteins regulate the oligomerization state of all three p53 family members and their isoforms, with a potential physiological relevance in developmental and disease-related processes. The regulation of the p53 family by S100 is complicated and depends on the target preference of each individual S100 protein, the concentration of the proteins and calcium, as well as the splicing variation of p63 or p73. Our results outlining the complexity of the interaction should be considered when studying the functional effects of S100 proteins in their biological context.
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Affiliation(s)
- J van Dieck
- MRC Centre for Protein Engineering, Hills Road, Cambridge, UK
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Kövesdi E, Lückl J, Bukovics P, Farkas O, Pál J, Czeiter E, Szellár D, Dóczi T, Komoly S, Büki A. Update on protein biomarkers in traumatic brain injury with emphasis on clinical use in adults and pediatrics. Acta Neurochir (Wien) 2010; 152:1-17. [PMID: 19652904 DOI: 10.1007/s00701-009-0463-6] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2008] [Accepted: 07/10/2009] [Indexed: 01/15/2023]
Abstract
PURPOSE This review summarizes protein biomarkers in mild and severe traumatic brain injury in adults and children and presents a strategy for conducting rationally designed clinical studies on biomarkers in head trauma. METHODS We performed an electronic search of the National Library of Medicine's MEDLINE and Biomedical Library of University of Pennsylvania database in March 2008 using a search heading of traumatic head injury and protein biomarkers. The search was focused especially on protein degradation products (spectrin breakdown product, c-tau, amyloid-beta(1-42)) in the last 10 years, but recent data on "classical" markers (S-100B, neuron-specific enolase, etc.) were also examined. RESULTS We identified 85 articles focusing on clinical use of biomarkers; 58 articles were prospective cohort studies with injury and/or outcome assessment. CONCLUSIONS We conclude that only S-100B in severe traumatic brain injury has consistently demonstrated the ability to predict injury and outcome in adults. The number of studies with protein degradation products is insufficient especially in the pediatric care. Cohort studies with well-defined end points and further neuroproteomic search for biomarkers in mild injury should be triggered. After critically reviewing the study designs, we found that large homogenous patient populations, consistent injury, and outcome measures prospectively determined cutoff values, and a combined use of different predictors should be considered in future studies.
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Affiliation(s)
- Erzsébet Kövesdi
- Department of Neurosurgery, University of Pécs, Rét u. 2., 7623, Pécs, Hungary
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Cirillo C, Sarnelli G, Esposito G, Grosso M, Petruzzelli R, Izzo P, Calì G, D'Armiento FP, Rocco A, Nardone G, Iuvone T, Steardo L, Cuomo R. Increased mucosal nitric oxide production in ulcerative colitis is mediated in part by the enteroglial-derived S100B protein. Neurogastroenterol Motil 2009; 21:1209-e112. [PMID: 19558426 DOI: 10.1111/j.1365-2982.2009.01346.x] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the central nervous system glial-derived S100B protein has been associated with inflammation via nitric oxide (NO) production. As the role of enteroglial cells in inflammatory bowel disease has been poorly investigated in humans, we evaluated the association of S100B and NO production in ulcerative colitis (UC). S100B mRNA and protein expression, inducible NO synthase (iNOS) expression, and NO production were evaluated in rectal biopsies from 30 controls and 35 UC patients. To verify the correlation between S100B and NO production, biopsies were exposed to S100B, in the presence or absence of specific receptor for advanced glycation end-products (RAGE) blocking antibody, to measure iNOS expression and nitrite production. S100B and iNOS expression were evaluated after incubation of biopsies with lipopolysaccharides (LPS) + interferon-gamma (IFN-gamma) in the presence of anti-RAGE or anti-S100B antibodies or budesonide. S100B mRNA and protein expression, iNOS expression and NO production were significantly higher in the rectal mucosa of patients compared to that of controls. Exogenous S100B induced a significant increase in both iNOS expression and NO production in controls and UC patients; this increase was inhibited by specific anti-RAGE blocking antibody. Incubation with LPS + IFN-gamma induced a significant increase in S100B mRNA and protein expression, together with increased iNOS expression and NO production. LPS + IFN-gamma-induced S100B up-regulation was not affected by budesonide, while iNOS expression and NO production were significantly inhibited by both specific anti-RAGE and anti-S100B blocking antibodies. Enteroglial-derived S100B up-regulation in UC participates in NO production, involving RAGE in a steroid insensitive pathway.
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Affiliation(s)
- C Cirillo
- Department of Clinical and Experimental Medicine, Gastroenterological Unit, University Federico II, Naples, Italy
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Chung L, Nelson AE, Ho KKY, Baxter RC. Proteomic profiling of growth hormone-responsive proteins in human peripheral blood leukocytes. J Clin Endocrinol Metab 2009; 94:3038-43. [PMID: 19491220 DOI: 10.1210/jc.2009-0778] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
CONTEXT GH is a known modulator of the immune system, but the effect of exogenous GH administration on white blood cell proteins has not been investigated. Surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS) is a powerful platform for the study of GH effects on immune system proteins. OBJECTIVE Our objective was to explore a novel approach for the detection of GH-responsive proteins in human leukocytes by proteomic analysis using SELDI-TOF MS. DESIGN We conducted a randomized double-blind, placebo-controlled GH administration study of 8 wk treatment followed by 6 wk washout. Pre- and posttreatment samples from 30 subjects were used for biomarker discovery. SETTING The study was performed at a clinical research facility. PARTICIPANTS We studied 30 recreationally trained healthy athletes. INTERVENTION Subjects received either recombinant human GH (2 mg/d sc; n = 22) or placebo (n = 8) for 8 wk. MAIN OUTCOME MEASURES Proteomic profiles were determined using CM10 weak cation-exchange protein chips, and some GH-regulated proteins were purified and identified by mass spectrometry and/or immunoblotting. RESULTS SELDI-TOF analysis revealed a number of GH-regulated peptides/proteins in the 3- to 22-kDa range that are either up- or down-regulated by GH. Several of these may be useful as biomarkers of GH action. The calcium-binding, proinflammatory calgranulins S100A8, S100A9, and S100A12 were all significantly down-regulated in response to GH treatment. CONCLUSION This study illustrates the novel use of human leukocyte proteomic profiling by SELDI-TOF MS and reveals the negative regulation of proinflammatory S100 proteins by GH in human white blood cells.
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Affiliation(s)
- Liping Chung
- Kolling Institute of Medical Research, University of Sydney, Royal North Shore Hospital, St. Leonards 2065, Australia
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