Abstract:
Objectives:The present paper aims to review the studies describing the interactions between HopQ and CEACAMs along with possible mechanisms responsible for pathogenicity of Helicobacter pylori. Materials and Methods:The literature was searched on "PubMed" using different key words including Helicobacter pylori, CEACAM and gastric. Results:HopQ is one of the outer membrane proteins of H. pylori and belongs to the family of adhesin proteins. In contrast to other adhesins, HopQ interacts with host cell surface molecules in a glycan independent manner. Human CEACAMs are the cell surface adhesion molecules mainly present on the epithelial cells, endothelial cells and leukocytes. The overexpression of these molecules may contribute to cancer progression and relapse. Recent studies have shown that HopQ may interact with human CEACAMs, particularly CEACAM1, CEACAM3, CEACAM5 and CEACAM6, but not CEACAM8. HopQ interacts with GFCC'C" interaction surface of IgV domain of N- terminal region of CEACAM1. Moreover, binding of HopQ to CEACAM1 prevent its trans-dimerization and stabilizes it in monomeric form. H. pylori may use these HopQ-CEACAM interactions to transfer its CagA oncoprotein into host gastric epithelial cells, which is followed by its phosphorylation and release of interleukin-8. HopQ-CEACAM interactions may also utilize T4SS, instead of CagA, to activate NF-κB signaling and trigger inflammation. Conclusion:HopQ of H. pylori may interact with CEACAMs of the human gastric cells to induce the development of gastric ulcers and cancers by transferring CagA oncoprotein or inducing activation of T4SS to initiate and maintain inflammatory reactions.
journal_name
Iran J Basic Med Scijournal_title
Iranian journal of basic medical sciencesauthors
Xia R,Zhang B,Wang X,Jia Qdoi
10.22038/ijbms.2019.34237.81subject
Has Abstractpub_date
2019-07-01 00:00:00pages
710-715issue
7eissn
2008-3866issn
2008-3874journal_volume
22pub_type
杂志文章,评审abstract:OBJECTIVES:Parkinson's disease (PD) is a progressive neurological disorder associated with motor disabilities and cognitive dysfunction as well. Evidence indicates that PD occurs less frequently in women than men, confirming a role for steroid hormones in protection of dopaminergic nigrostriatal neurons. It is reported...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2016.7911
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVES:Tadalafil can restore endothelial function and treat atherosclerosis. However, the effect of tadalafil on transplant arteriosclerosis remains unclear. In this study, we explore the effects of tadalafil on allograft vasculopathy. MATERIALS AND METHODS:Male Brow-Norway rats supplied aorta grafts for Male Lewi...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2015-09-01 00:00:00
abstract:OBJECTIVE(S):The ongoing increasing antibiotic resistance is one of the biggest challenges faced by global public health. The perennial need for new antimicrobials against a background of increasing antibiotic resistance in pathogenic and opportunistic microorganisms obliges the scientific community to constantly devel...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-07-01 00:00:00
abstract:Objectives:Interleukin-36 receptor antagonist (IL-36Ra) is a new member of the IL-1 family that exhibits anti-inflammatory activity in a variety of inflammatory and immune diseases. Our purpose was to determine the effect of IL-36Ra on liver injury in a mouse hepatitis model induced by concanavalin A (ConA). Materials...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.35614.8492
更新日期:2020-05-01 00:00:00
abstract:Objectives:Cord blood (CB) is known as a valuable source of hematopoietic stem cells (HSC). Identifying strategies that enhance expansion and maintain engraftment and homing capacity of HSCs can improve transplant efficiency. In this study, we examined different culture conditions on ex vivo expansion and homing capaci...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2018.26820.6561
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVES:Lead (Pb) is a toxic metal inducing many destructive effects leading to a broad range of physiological, biochemical, and neurological dysfunctions in humans and laboratory animals. MATERIALS AND METHODS:Here, we investigated the effect of chronic exposure to Pb (50 mg/l) on oxidative stress, hepatotoxicity,...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2015-10-01 00:00:00
abstract:OBJECTIVES:The utilization of molecular techniques in the epidemiology of tuberculosis have provided an opportunity for using effective markers to trace the transmission of the disease. The purpose of this study was to compare the genetic patterns of Mycobacterium tuberculosis by three methods of RFLP technique. MATER...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2014-06-01 00:00:00
abstract:Objectives:During the last years with increasing resistant bacteria to the most antibiotics bacteriophages are suggested as appropriate treatment option. To investigate lytic activity of bacteriophages there are indirect microbial procedures and direct methods. The present study to complement microbial procedures and i...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2019.31226.7521
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:In previous studies, researchers observed that doxepin could improve cognitive processes and has protective effects on the central nervous system. Thus, this study was designed to analyze the effects of doxepin on β-amyloid (Aβ)-induced memory impairment and neuronal toxicity in rat and to explore the underl...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.9274
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVES:Pharmacological studies showed that the extracts of Jin Yin Hua and its active constituents have lipid lowering, antipyretic, hepatoprotective, cytoprotective, antimicrobial, antibiotic, antioxidative, antiviral, and anti-inflammatory effects. The purpose of the present study was to investigate the protectiv...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVES:Hyperthermia is one of the most common environmental stressors that affect multi-biological systems in the body including the central nervous system as well as the hematopoietic organs. The objective of the present study was to investigate the protective role of ethanolic extract of propolis (EEP) on some se...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE(S):Carotenoids which are naturally synthesized by fungi such as yeasts can act as an antioxidant which is closely related to their ability to decrease the risk of a variety of degenerative diseases. In recent years, the increase of demand for carotenoids obtained from natural sources has promoted major effort...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-10-01 00:00:00
abstract:Objectives:Recent evidence has shown underlying roles of gut dysbiosis and metabolic endotoxemia in obesity and its complications. Despite the large number of experimental and clinical researches performed on gut microbiota and obesity, no bibliometrics' study has been conducted so far. We aimed to assess the trend of ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章,评审
doi:10.22038/ijbms.2018.30203.7281
更新日期:2019-01-01 00:00:00
abstract:Objectives:Prenatal stresses increase incidence of neurodevelopmental disorders and influence cognitive abilities. Glucocorticoids are released in stress condition as endpoint activation of hypothalamus-pituitary-adrenal (HPA) axis. Evidence indicates a cross-talk between gut microbiota and brain function. This study a...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2019.33956.8078
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVES:The aim of the present study was to prepare, characterize, and evaluate solid lipid nanoparticles (SLNs) containing Zataria multiflora essential oil (ZEO). MATERIALS AND METHODS:In this study, Z. multiflora essential oil-loaded solid lipid nanoparticles (ZE-SLNs) were prepared to improve its efficiency in c...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2016-11-01 00:00:00
abstract:Objectives:Adipose-derived stem cells (ADSCs), with suitable and easy access, are multipotential cells that have the ability for differentiation into other mesodermal and transdifferentiate into neural phenotype cells. In this study, Lithium chloride (LiCl) was used for in vitro transdifferentiation of rat ADSCs into n...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.41582.9820
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVES:This study aimed to evaluate the protective effects of total flavonoid extract from Coreopsis tinctoria Nutt. (CTF) against myocardial ischemia/reperfusion injury (MIRI) using an isolated Langendorff rat heart model. MATERIALS AND METHODS:Left ventricular developed pressure (LVDP) and the maximum rate of ri...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2016-09-01 00:00:00
abstract:OBJECTIVES:Obesity considered being a low-grade inflammatory disease. The objective of this study was to examine the association between inflammatory markers (IM) including C-reactive protein (hs-CRP), Interleukin-6 (IL-6), and homocystein (Hcy) and obesity-related factors (e.g. BMI, waist, hip) in adult participants o...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2014-08-01 00:00:00
abstract:Objectives:Bacterial translocation in patients with cirrhosis is an important triggering factor for infections and mortality. In the bile duct ligation (BDL) model, crucial players of bacterial translocation are still unknown. This study aims to determine the interrelation between microbiome composition in the colon, m...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2019.36487.8753
更新日期:2020-02-01 00:00:00
abstract:Objectives:Several lines of evidence showed that minocycline possesses antioxidant and anti-inflammatory properties. This study aimed to demonstrate the effects of minocycline in rats subjected to chronic constriction injury (CCI). Materials and Methods:In this study four groups (n = 6-8) of rats were used as follows:...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/IJBMS.2017.24248.6053
更新日期:2018-02-01 00:00:00
abstract:OBJECTIVE(S):The effect of the extract of Crocus sativus and its constituent, safranal on inflammatory markers in sensitized guinea pigs was examined. MATERIALS AND METHODS:Ovalbumin (OA) sensitized guinea pigs were given drinking water alone (group S), or drinking water containing three concentrations of safranal, th...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVES:Fumonisins are a group of toxic and carcinogenic mycotoxins, which contaminate the grains and their products. The aim of this study was to examine the apoptotic and proliferative activity of mouse gastric mucosa following administration of fumonisin B1 (FB1). MATERIALS AND METHODS:Twenty-nine female mice di...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2015-01-01 00:00:00
abstract::Sulfur mustard (SM, bis- (2-chloroethyl) sulphide) is a chemical warfare agent that causes DNA alkylation, protein modification and membrane damage. SM can trigger several molecular pathways involved in inflammation and oxidative stress, which cause cell necrosis and apoptosis, and loss of cells integrity and function...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章,评审
doi:
更新日期:2015-08-01 00:00:00
abstract:OBJECTIVE(S):Adeno-associated virus type 2 (AAV2) vectors are widely used for both experimental and clinical gene therapy. A recent research has shown that the performance of these vectors can be greatly improved by substitution of specific surface-exposed tyrosine residues with phenylalanines. In this study, a fast an...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-07-01 00:00:00
abstract:Objectives:Mycobacterium tuberculosis (M. tuberculosis), an intracellular pathogen, causes 1.5 million deaths globally. Bacilli Calmette-Guérin (BCG) is commonly administered to protect people against M. tuberculosis infection; however, there are some obstacles with this first-generation vaccine. DNA vaccines, the thir...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2020.41806.9881
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:Many cancer cells show significant resistance to drugs that kill drug sensitive cancer cells and non-tumor cells and such resistance might be a consequence of the difference in metabolism. Therefore, studying the metabolism of drug resistant cancer cells and comparison with drug sensitive and normal cell lin...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2015-03-01 00:00:00
abstract:Objectives:The preclinical reports have shown that specific probiotics like Bifidobacterium bifidum (B. bifidum) and Lactobacillus acidophilus (L. acidophilus) can be applied as the biotherapeutic agents in the inhibition or therapy of colorectal cancer via the modification of gut bacteria. In the previous studies, we ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2019.32624.7806
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE(S):Based on knowledge from traditional herbal medicine, Ferula assa-foetida (asafoetida) has several therapeutic applications but there is less knowledge about its effect on neurons. MATERIALS AND METHODS:In order to evaluate neuronal differentiation, neuronal like cells were stained against neuronal specifi...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVE(S):Pre-eclampsia is characterized by hypertension, dyslipidemia, and increased systemic inflammatory response and has been associated with an increased maternal risk of cardiovascular disease later in life. Endothelial dysfunction is thought to be a central pathogenic feature in pre-eclampsia on the basis of ...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:
更新日期:2013-05-01 00:00:00
abstract:Objectives:Gallic acid (GA) is a highly effective antioxidant, which its beneficial effects are well known, but its impact on expression of microRNAs (miRs) following hepatic ischemia-reperfusion (I/R) is not well recognized. Therefore, the current research was designed to specify the beneficial effect of GA on miRs (1...
journal_title:Iranian journal of basic medical sciences
pub_type: 杂志文章
doi:10.22038/ijbms.2018.31589.7605
更新日期:2019-04-01 00:00:00