1
|
Nikolaidis I, Karakasi MV, Pilalas D, Boziki MK, Tsachouridou O, Kourelis A, Skoura L, Pavlidis P, Gargalianos-Kakoliris P, Metallidis S, Daniilidis M, Trypsiannis G, Nikolaidis P. Association of cytokine gene polymorphisms with peripheral neuropathy susceptibility in people living with HIV in Greece. J Neurovirol 2023; 29:626-639. [PMID: 37695541 DOI: 10.1007/s13365-023-01169-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/02/2023] [Accepted: 08/21/2023] [Indexed: 09/12/2023]
Abstract
Relatively little research has been done in recent years to understand what leads to the unceasingly high rates of HIV sensory neuropathy despite successful antiretroviral treatment. In vivo and in vitro studies demonstrate neuronal damage induced by HIV and increasingly identified ART neurotoxicity involving mitochondrial dysfunction and innate immune system activation in peripheral nerves, ultimately all pathways resulting in enhanced pro-inflammatory cytokine secretion. Furthermore, many infectious/autoimmune/malignant diseases are influenced by the production-profile of pro-inflammatory and anti-inflammatory cytokines, due to inter-individual allelic polymorphism within cytokine gene regulatory regions. Associations of cytokine gene polymorphisms are investigated with the aim of identifying potential genetic markers for susceptibility to HIV peripheral neuropathy including ART-dependent toxic neuropathy. One hundred seventy-one people living with HIV in Northern Greece, divided into two sub-groups according to the presence/absence of peripheral neuropathy, were studied over a 5-year period. Diagnosis was based on the Brief Peripheral Neuropathy Screening. Cytokine genotyping was performed by sequence-specific primer-polymerase chain reaction. Present study findings identify age as an important risk factor (p < 0.01) and support the idea that cytokine gene polymorphisms are at least involved in HIV peripheral-neuropathy pathogenesis. Specifically, carriers of IL1a-889/rs1800587 TT genotype and IL4-1098/rs2243250 GG genotype disclosed greater relative risk for developing HIV peripheral neuropathy (OR: 2.9 and 7.7 respectively), while conversely, carriers of IL2+166/rs2069763 TT genotype yielded lower probability (OR: 3.1), all however, with marginal statistical significance. The latter, if confirmed in a larger Greek population cohort, may offer in the future novel genetic markers to identify susceptibility, while it remains significant that further ethnicity-oriented studies continue to be conducted in a similar pursuit.
Collapse
Affiliation(s)
- Ioannis Nikolaidis
- Second Department of Neurology, AHEPA University General Hospital - Department of neurosciences, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece.
| | - Maria-Valeria Karakasi
- Third Department of Psychiatry, AHEPA University General Hospital - Department of mental health, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Dimitrios Pilalas
- First Department of Internal Medicine, AHEPA University General Hospital, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Marina-Kleopatra Boziki
- Second Department of Neurology, AHEPA University General Hospital - Department of neurosciences, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Olga Tsachouridou
- First Department of Internal Medicine, AHEPA University General Hospital, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Andreas Kourelis
- Laboratory of Immunology, Department of Microbiology, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Lemonia Skoura
- Laboratory of Immunology, Department of Microbiology, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Pavlos Pavlidis
- Laboratory of Forensic Sciences, Democritus University of Thrace - School of Medicine, GR 68100, Dragana, Alexandroupolis, Greece
| | | | - Symeon Metallidis
- First Department of Internal Medicine, AHEPA University General Hospital, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Michail Daniilidis
- First Department of Internal Medicine, AHEPA University General Hospital, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| | - Grigorios Trypsiannis
- Laboratory of Medical Statistics, Democritus University of Thrace - School of Medicine, GR 68100, Dragana, Alexandroupolis, Greece
| | - Pavlos Nikolaidis
- First Department of Internal Medicine, AHEPA University General Hospital, Aristotle University - School of Medicine, GR 54124, Thessaloniki, Greece
| |
Collapse
|
2
|
Doroszkiewicz J, Groblewska M, Mroczko B. Molecular Biomarkers and Their Implications for the Early Diagnosis of Selected Neurodegenerative Diseases. Int J Mol Sci 2022; 23:ijms23094610. [PMID: 35563001 PMCID: PMC9100918 DOI: 10.3390/ijms23094610] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/15/2022] [Accepted: 04/20/2022] [Indexed: 02/07/2023] Open
Abstract
The degeneration and dysfunction of neurons are key features of neurodegenerative diseases (NDs). Currently, one of the main challenges facing researchers and clinicians is the ability to obtain reliable diagnostic tools that will allow for the diagnosis of NDs as early as possible and the detection of neuronal dysfunction, preferably in the presymptomatic stage. Additionally, better tools for assessing disease progression in this group of disorders are also being sought. The ideal biomarker must have high sensitivity and specificity, be easy to measure, give reproducible results, and reflect the disease progression. Molecular biomarkers include miRNAs and extracellular microvesicles known as exosomes. They may be measured in two extracellular fluids of the highest importance in NDs, i.e., cerebrospinal fluid (CSF) and blood. The aim of the current review is to summarize the pathophysiology of the four most frequent NDs—i.e., Alzheimer’s disease (AD), Parkinson’s disease (PD), amyotrophic lateral sclerosis (ALS), and multiple sclerosis (MS)—as well as current progress in the research into miRNAs as biomarkers in these major neurodegenerative diseases. In addition, we discuss the possibility of using miRNA-based therapies in the treatment of neurodegenerative diseases, and present the limitations of this type of therapy.
Collapse
Affiliation(s)
- Julia Doroszkiewicz
- Department of Neurodegeneration Diagnostics, Medical University of Bialystok, 15-269 Bialystok, Poland;
- Correspondence: ; Tel.: +48-85-686-51-68
| | - Magdalena Groblewska
- Department of Biochemical Diagnostics, University Hospital in Białystok, 15-269 Bialystok, Poland;
| | - Barbara Mroczko
- Department of Neurodegeneration Diagnostics, Medical University of Bialystok, 15-269 Bialystok, Poland;
- Department of Biochemical Diagnostics, Medical University of Bialystok, 15-269 Bialystok, Poland
| |
Collapse
|
3
|
Doroszkiewicz J, Mroczko P, Kulczyńska-Przybik A. Inflammation in the CNS - understanding various aspects of the pathogenesis of Alzheimer's disease. Curr Alzheimer Res 2021; 19:16-31. [PMID: 34856902 PMCID: PMC9127729 DOI: 10.2174/1567205018666211202143935] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/06/2021] [Accepted: 11/03/2021] [Indexed: 11/22/2022]
Abstract
Alzheimer's disease is a progressive and deadly neurodegenerative disorder, and one of the most common causes of dementia in the world. Current, insufficiently sensitive and specific methods of early diagnosis and monitoring of this disease prompt a search for new tools. Numerous literature data indicate that the pathogenesis of Alzheimer's disease (AD) is not limited to the neuronal compartment, but involves various immunological mechanisms. Neuroinflammation has been recognized as a very important process in AD pathology. It seems to play pleiotropic roles, both neuroprotective as well as neurodegenerative, in the development of cognitive impairment depending on the stage of the disease. Mounting evidence demonstrates that inflammatory proteins could be considered biomarkers of disease progression. Therefore, the present review summarizes the role of some inflammatory molecules and their potential utility in the detection and monitoring of dementia severity. The paper also provides a valuable insight into new mechanisms leading to the development of dementia, which might be useful in discovering possible anti-inflammatory treatment.
Collapse
Affiliation(s)
- Julia Doroszkiewicz
- Department of Neurodegeneration Diagnostics, Medical University of Bialystok, Bialystok. Poland
| | - Piotr Mroczko
- Department of Criminal Law and Criminology, Faculty of Law, University of Bialystok, Bialystok. Poland
| | | |
Collapse
|
4
|
Babić Leko M, Nikolac Perković M, Klepac N, Štrac DŠ, Borovečki F, Pivac N, Hof PR, Šimić G. IL-1β, IL-6, IL-10, and TNFα Single Nucleotide Polymorphisms in Human Influence the Susceptibility to Alzheimer's Disease Pathology. J Alzheimers Dis 2021; 75:1029-1047. [PMID: 32390629 DOI: 10.3233/jad-200056] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Neuroinflammation plays an important role in Alzheimer's disease (AD). During this process, activated microglia release pro-inflammatory cytokines such as interleukin (IL)-1α, IL-1β, IL-6, and tumor necrosis factor α (TNFα) that participate in neuron damage, but also anti-inflammatory cytokines (such as IL-10), which maintain homeostasis of immune response. Previous studies showed the association of IL-1α -889C/T (rs1800587), IL-1β-1473G/C (rs1143623), IL-6 -174C/G (rs1800795), IL-10 -1082G/A (rs1800896), and TNFα -308A/G (rs1800629) polymorphisms with AD. OBJECTIVE We aimed to investigate whether people with certain IL-1α, IL-1β, IL-6, IL-10, and TNFα genotypes in these polymorphisms are more prone to develop AD-related pathology, reflected by pathological levels of cerebrospinal fluid (CSF) AD biomarkers including amyloid-β1-42, total tau (t-tau), tau phosphorylated at Thr 181 (p-tau181), Ser 199 (p-tau199), and Thr 231 (p-tau231), and visinin-like protein 1 (VILIP-1). METHODS The study included 115 AD patients, 53 patients with mild cognitive impairment, and 11 healthy controls. The polymorphisms were determined using real-time polymerase chain reaction. Levels of CSF biomarkers were determined by enzyme-linked immunosorbent assay. RESULTS A significant increase in p-tau CSF levels was found in patients with the AA IL-10 -1082G/A and GG TNFα -308A/G genotypes, and in carriers of a G allele in IL-1β -1473C/G and IL-6 -174C/G polymorphisms. t-tau levels were increased in carriers of a G allele in IL-1β -1473C/G polymorphism. An increase in VILIP-1 levels was observed in patients with CG and GG IL-1β -1473C/G, GC IL-6 -174C/G, and GG TNFα -308A/G genotype. CONCLUSION These results suggest that persons carrying certain genotypes in IL10 (-1082G/A), IL1β (1473C/G), IL6 (-174C/G), and TNFIα (-308A/G) could be more vulnerable to development of neuroinflammation, and consequently of AD.
Collapse
Affiliation(s)
- Mirjana Babić Leko
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| | | | - Nataša Klepac
- Department of Neurology, University Hospital Centre Zagreb, Zagreb, Croatia
| | | | - Fran Borovečki
- Department of Neurology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Nela Pivac
- Department of Molecular Medicine, Institute Ruđer Bošković, Zagreb, Croatia
| | - Patrick R Hof
- Nash Family Department of Neuroscience, Friedman Brain Institute, and Ronald M. Loeb Center for Alzheimer's Disease, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Goran Šimić
- Department of Neuroscience, Croatian Institute for Brain Research, University of Zagreb Medical School, Zagreb, Croatia
| |
Collapse
|
5
|
Pšemeneckienė G, Petrikonis K, Rastenytė AD. Polymorphisms of Proinflammatory Cytokines in Relation to APOE Epsilon 4 and Risk of Alzheimer's Disease in the Lithuanian Population. MEDICINA-LITHUANIA 2019; 55:medicina55100689. [PMID: 31618972 PMCID: PMC6843382 DOI: 10.3390/medicina55100689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/30/2019] [Accepted: 10/09/2019] [Indexed: 11/16/2022]
Abstract
Background and objective: Neuroinflammation is one of the pathological pathways of Alzheimer's disease (AD), mediating the progression of neurodegeneration. Polymorphisms of proinflammatory cytokines have been linked to increased AD risk. Identification of certain combinations of polymorphisms could help predict disease in its preclinical stage. The aim of the study was to evaluate differences in the prevalence of TNFα -850T (rs1799724), IL1A -889T (rs1800587), and IL6 -174C (rs1800795, Intron type) polymorphisms between AD patients and healthy controls (HC) and determine the impact of these SNPs in combination with the APOEε4 allele on AD risk. Materials and Methods: The study population is comprised of 107 patients with sporadic AD (AD group) and age- and gender-matched 110 persons without impaired cognitive functions (control group). TNFα -850C > T polymorphism was revealed by a PCR and restriction fragment length polymorphism (RFLP) method. Real time PCR was used for IL1A and IL6 SNP genotyping. APOEε genotyping was done via hybridization method. Results: The frequencies of TNFα -850T, IL1A -889T, IL6 -174C allele and genotype did not differ between the AD and HC groups (p > 0.05). IL6 -174C was not in HWE, and it was not analysed further. APOEε4 allele (p = 0.001) and 3/4 and 4/4 genotypes (p = 0.005) were more prevalent in AD patients. APOEε4 carriage increased the risk of AD (OR 2.65, p = 0.001), while TNFα -850T and IL1A -889T polymorphisms were not found as significant independent risk factors for AD. The presence of at least one IL1A -889T allele in combination with APOEε4+ was associated with a lower risk of AD (OR 2.24, p = 0.047) than the carriage of APOEε4+ alone (OR 2.70, p = 0.015). Conclusions: No significant differences of TNFα -850, IL1A -889, and IL6 -174 polymorphisms frequencies were found between AD and control groups. In APOEε4 carriers IL1A -889T polymorphism was found to reduce the AD risk determined by APOEε4 alone.
Collapse
Affiliation(s)
- Greta Pšemeneckienė
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania.
| | - Kęstutis Petrikonis
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania.
| | - And Daiva Rastenytė
- Department of Neurology, Medical Academy, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania.
| |
Collapse
|
6
|
Association of IL1RAP-related genetic variation with cerebrospinal fluid concentration of Alzheimer-associated tau protein. Sci Rep 2019; 9:2460. [PMID: 30792413 PMCID: PMC6385252 DOI: 10.1038/s41598-018-36650-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 11/26/2018] [Indexed: 11/13/2022] Open
Abstract
A possible involvement of the gene IL1RAP (interleukin-1 receptor-associated protein) in the pathogenesis of Alzheimer’s disease (AD) has been suggested in GWASs of cerebrospinal fluid (CSF) tau levels and longitudinal change in brain amyloid burden. The aim of this study was to examine previously implicated genetic markers in and near IL1RAP in relation to AD risk, CSF tau and Aβ biomarkers, as well as cognitive decline, in a case (AD)-control study and an age homogenous population-based cohort. Genotyping of IL1RAP-related single nucleotide polymorphisms (SNPs), selected based on previous GWAS results, was performed. 3446 individuals (1154 AD cases and 2292 controls) were included in the analyses of AD risk, 1400 individuals (cognitively normal = 747, AD = 653) in the CSF biomarker analyses, and 861 individuals in the analyses of cognitive decline. We found no relation between IL1RAP-related SNPs and AD risk. However, CSF total-tau and phospho-tau were associated with the SNP rs9877502 (p = 6 × 10−3 and p = 5 × 10−4). Further, nominal associations (p = 0.03–0.05) were found between three other SNPs and CSF biomarker levels, or levels of cognitive performance and decline in a sub-sample from the general population. These results support previous studies suggesting an association of IL1RAP with disease intensity of AD.
Collapse
|
7
|
Risk factors associated with the onset and progression of Alzheimer’s disease: A systematic review of the evidence. Neurotoxicology 2017; 61:143-187. [DOI: 10.1016/j.neuro.2017.03.006] [Citation(s) in RCA: 162] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 03/22/2017] [Indexed: 12/25/2022]
|
8
|
Inflammatory Cytokines and Alzheimer's Disease: A Review from the Perspective of Genetic Polymorphisms. Neurosci Bull 2016; 32:469-80. [PMID: 27568024 DOI: 10.1007/s12264-016-0055-4] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 07/03/2016] [Indexed: 12/30/2022] Open
Abstract
Neuroinflammatory processes are a central feature of Alzheimer's disease (AD) in which microglia are over-activated, resulting in the increased production of pro-inflammatory cytokines. Moreover, deficiencies in the anti-inflammatory system may also contribute to neuroinflammation. Recently, advanced methods for the analysis of genetic polymorphisms have further supported the relationship between neuroinflammatory factors and AD risk because a series of polymorphisms in inflammation-related genes have been shown to be associated with AD. In this review, we summarize the polymorphisms of both pro- and anti-inflammatory cytokines related to AD, primarily interleukin-1 (IL-1), IL-6, tumor necrosis factor alpha, IL-4, IL-10, and transforming growth factor beta, as well as their functional activity in AD pathology. Exploration of the relationship between inflammatory cytokine polymorphisms and AD risk may facilitate our understanding of AD pathogenesis and contribute to improved treatment strategies.
Collapse
|
9
|
Dong X, Zhang L, Meng Q, Gao Q. Association Between Interleukin-1A, Interleukin-1B, and Bridging integrator 1 Polymorphisms and Alzheimer's Disease: a standard and Cumulative Meta-analysis. Mol Neurobiol 2016; 54:736-747. [PMID: 26768592 DOI: 10.1007/s12035-015-9683-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 12/28/2015] [Indexed: 01/01/2023]
Abstract
Alzheimer's disease (AD) has been one of the most prevalent health problems among senior population. Interleukin-1A (IL-1A) and IL-1B are two isoforms of IL-1. Recent studies suggested that certain polymorphisms on these two genes are associated with AD. Bridging integrator 1 (BIN1) is considered as common genetic risk factors for AD, whereas different studies have provided various conclusions regarding its role in AD. This study was designed to justify the association between multiple gene polymorphisms and AD through an evidence synthesis approach. We conducted a literature search to identify relevant articles published from 2000 to 2015 from PubMed, Embase, and Cochrane Library, in accordance with inclusion criteria. Pooled odds ratios (ORs) were calculated for the allele model. The effect estimates were summarized by both standard and cumulative meta-analysis. Finally, 54 articles with 88 independent studies were enrolled in this meta-analysis. Mutants in rs1800587 of IL-1A, rs1143634 of IL-1B, rs12989701, and rs744373 of BIN1 were significantly associated with AD onset. The difference effect of same single nucleotide polymorphisms (SNPs) on various ethnicities was also observed in our results. The present meta-analysis suggested that IL-1A, IL-1B, and BIN1 were candidate genes for AD pathogenesis. Polymorphisms of IL-1A, IL-1B, and BIN1 are associated with AD onset.
Collapse
Affiliation(s)
- Xiaoliu Dong
- Department of Neurology, Tangshan People's Hospital, Tangshan, 063000, China.
| | - Li Zhang
- Department of Neurosurgery, Tangshan People's Hospital, Tangshan, 063000, China
| | - Qingling Meng
- Department of Internal Medicine, The People's Hospital of Qianxi County, Qianxi, 064300, China
| | - Qiuyan Gao
- Department of Ultrasound, Tangshan People's Hospital, Tangshan, 063000, China
| |
Collapse
|
10
|
Yildiz SH, Erdogan MO, Artan S, Solak M, Yaman M, Ozbabalik BD, Terzi ESA. Association of Alzheimer's Disease With APOE and IL-1α Gene Polymorphisms. Am J Alzheimers Dis Other Demen 2015; 30:756-61. [PMID: 23038715 PMCID: PMC10852688 DOI: 10.1177/1533317512461557] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Apolipoprotein E (ApoE) gene polymorphisms are thought to be the most important genetic risk factor in the pathogenesis of late onset and sporadic Alzheimer's disease (AD). Moreover, interleukin-1α (IL-1α) is found to be associated with the pathogenesis of AD. In this research, ∊2, ∊3, and ∊4 polymorphisms of ApoE gene and C889T polymorphism of IL-1α gene were genotyped in patients with AD and controls. Genotyping was performed by real-time polymerase chain reaction. ∊3/∊3 and ∊3/∊4 genotype frequencies were significantly higher in control and case groups, respectively. While ∊3 allele frequencies were significantly higher in the control group, ∊2 and ∊4 allele frequencies were significantly higher among the cases with AD. No difference was found between the groups according to C889T polymorphism of IL-1α. In conclusion, we demonstrated that there was a strong association between ApoE ∊4 allele and AD, while there was no relation with IL-1α C889T polymorphisms for this study.
Collapse
Affiliation(s)
- Saliha Handan Yildiz
- Department of Medical Genetics, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | | | - Sevilhan Artan
- Department of Medical Genetics, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Mustafa Solak
- Department of Medical Genetics, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Mehmet Yaman
- Department of Neurology, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | | | | |
Collapse
|
11
|
Zhao J, Qin X, Li S, Zeng Z. Association between the ACE I/D polymorphism and risk of ischemic stroke: an updated meta-analysis of 47,026 subjects from 105 case-control studies. J Neurol Sci 2014; 345:37-47. [PMID: 25082780 DOI: 10.1016/j.jns.2014.07.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/06/2014] [Accepted: 07/10/2014] [Indexed: 01/19/2023]
Abstract
BACKGROUND The association between the angiotensin-converting enzyme insertion/deletion (ACE I/D) polymorphism and risk of ischemic stroke (IS) remains controversial and ambiguous. To clarify this association, a large meta-analysis was performed. METHODS Electronic databases in both English and Chinese were used to identify relevant studies (updated in February 2014). Odds ratios (ORs) and 95% confidence intervals (95% CIs) were used to describe the strength of the association. RESULTS One hundred and fifty eligible studies, including 18,258 IS cases and 28,768 controls, were identified. Meta-analysis of these studies pointed to a significant association between the ACE I/D polymorphism and IS risk: (D vs. I: OR=1.354, 95% CI=1.272-1.440, P<0.001; DD vs. II: OR=1.755, 95% CI=1.561-1.973, P<0.001; ID vs. II: OR=1.178, 95% CI=1.098-1.263, P<0.001; DD vs. ID/II OR=1.535, 95% CI=1.399-1.684, P<0.001; DD/ID vs. II: OR=1.353, 95% CI=1.251-1.463, P<0.001). Subgroup analysis revealed a significantly elevated risk among Asians, but with borderline statistical significance among Caucasians. CONCLUSION This meta-analysis indicated that the ACE I/D polymorphism may be a genetic susceptibility factor for IS, especially among Asians, but with borderline statistical significance for Caucasians. Further investigations are needed to validate our conclusions.
Collapse
Affiliation(s)
- Jiangyang Zhao
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China.
| | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China.
| | - Shan Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China.
| | - Zhiyu Zeng
- Department of Geriatrics, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China.
| |
Collapse
|
12
|
Abstract
Although the IL-1α molecule has long been recognized, information about its distinct role in various diseases is limited, since most clinical studies have focused on the role of IL-1β. Despite triggering the same IL-1 receptor as does IL-1β, there is, however, a distinct role for IL-1α in some inflammatory diseases. IL-1α is a unique cytokine since it is constitutively present intracellularly in nearly all resting non-hematopoietic cells in health as well as being up-regulated during hypoxia. During cell necrosis, IL-1α functions as an alarm molecule and thus plays a critical role early in inflammation. Following its release from damage tissue cells, IL-1α mediates neutrophil recruitment to the site of injury, inducing IL-1β, other cytokines and chemokines from surrounding resident cells. Another unique attribute of IL-1α is its nuclear localization sequence present in the N-terminal half of the precursor termed the propiece. The IL-1α propiece translocates into the nucleus and participates in the regulation of transcription. Therefore, IL-1α, like IL-1 family members IL-33 and IL-37, is a 'dual-function' cytokine binding to chromatin as well as to its cell surface receptor. Some cancer cells can express membrane IL-1α, which can increase immunogenicity of tumor cells and serve in anti-tumor immune surveillance and tumor regression. However, in the tumor microenvironment, precursor IL-1α released from dying tumor cells is inflammatory and, similar to IL-1β, increases tumor invasiveness and angiogenesis.
Collapse
Affiliation(s)
- Peleg Rider
- Faculty of Health Sciences, Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Yaron Carmi
- School of Medicine, Department of Pathology, Stanford University, Palo Alto, CA, USA
| | - Elena Voronov
- The Shraga Segal Department of Microbiology, Immunology and Genetics and The Cancer Research Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ron N Apte
- The Shraga Segal Department of Microbiology, Immunology and Genetics and The Cancer Research Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| |
Collapse
|
13
|
Hua Y, Zhao H, Kong Y, Lu X. Meta-analysis of the association between the interleukin-1A -889C/T polymorphism and Alzheimer's disease. J Neurosci Res 2012; 90:1681-92. [PMID: 22513697 DOI: 10.1002/jnr.23062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2012] [Accepted: 03/04/2012] [Indexed: 11/05/2022]
Abstract
No clear consensus has been reached on the Interleukin-1A (IL-1A) -889C/T polymorphism and Alzheimer's disease (AD) risk. In this meta-analysis, 27 case-control studies were assessed to evaluate the possible association. Overall, positive associations of the IL-1A -889C/T polymorphism with AD risk were found in allele comparison T vs. C (OR = 1.09, 95% CI = 1.01-1.18), recessive model TT vs. CT + CC (OR = 1.21, 95% CI = 1.01-1.45), and homozygote comparison (TT vs. CC; OR = 1.32, 95% CI = 1.04-1.67). In subgroup analysis stratified by ethnicity, significant associations were demonstrated in Caucasians but not in Asians. In subgroup analysis according to the age of onset, the data showed a significant association in patients with late-onset AD in Caucasians but not in early-onset AD. In conclusion, this meta-analysis supports the idea that IL-1A -889C/T polymorphism is capable of causing AD and LOAD susceptibility in Caucasians but not in Asians.
Collapse
Affiliation(s)
- Ye Hua
- Department of Neurology, The Affiliated Wuxi Second Hospital, Nanjing Medical University, Wuxi, Jiangsu, China
| | | | | | | |
Collapse
|