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 and simple method is presented to generate AAV2 vector helper plasmids encoding capsid proteins with single, double or triple Y→F mutations. MATERIALS AND METHODS:A one-step, high-fidelity polymerase chain reaction (PCR) cloning procedure involving the use of two partially overlapping primers to amplify a circular DNA template was applied to produce AAV2 cap genes encoding VP1 mutants with Y→F substitutions in residues 444, 500 or 730. The resulting constructs were used to make the different double and triple mutant by another round of PCR (Y444500F mutant), subcloning (Y444730F and Y500730F mutants) or a combination of both techniques (Y444500730F mutant). RESULTS:Nucleotide sequence analysis revealed successful introduction of the desired mutations in the AAV2 cap gene and showed the absence of any unintended mutations in the DNA fragments used to assemble the final set of AAV2 vector helper plasmids. The correctness of these plasmids was further confirmed by restriction mapping. CONCLUSION:PCR-based, single-step site-directed mutagenesis of circular DNA templates is a highly efficient and cost-effective method to generate AAV2 vector helper plasmids encoding mutant Cap proteins for the production of vector particles with increased gene transfer efficiency.
journal_name
Iran J Basic Med Scijournal_title
Iranian journal of basic medical sciencesauthors
Ahmadiankia N,Neshati V,Neshati Z,Swildens J,de Vries AAsubject
Has Abstractpub_date
2013-07-01 00:00:00pages
813-21issue
7eissn
2008-3866issn
2008-3874journal_volume
16pub_type
杂志文章abstract：OBJECTIVES:The primary objective of this study was to determine whether local and imported cigarette brands used in , have elevated levels of metals or not. The produced data of cigarette brands are compared both with each other and with the existing brands in different countries. MATERIALS AND METHODS:In present stud...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：Objectives:In this study, we investigated the protective effects of piperine on lead acetate-induced renal damage in rat kidney tissue. Materials and Methods:Forty male rats were divided into 5 groups: negative control (rats were given aquadest daily), positive control (rats were given lead acetate 30 mg/kg BW orally ...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/IJBMS.2017.9487
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVES:Prostate cancer is the world's leading cause of cancer and the second cause of cancer-related death in men after lung cancer. Differentiation of prostate adenocarcinoma from benign prostate lesions and hyperplasia sometimes cannot be done on the basis of morphologic findings. Considering the fact that in the...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2014-07-01 00:00:00
abstract：OBJECTIVES:Crocin bleaching assay (CBA) is a new method for determination of antioxidant capacity. In CBA, addition of hydrogen to the conjugated double bonds of crocin results in reduction of crocin and increase in the absorbance at 440 nm, which is considered as a measure of antioxidant potential. Here CBA method was...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2011-09-01 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:Due to unsatisfactory response or intolerable side effects of current drugs, treatment of essential tremor remains inadequate. Thus, we aimed to investigate the protective and therapeutic effects of aqueous and ethanolic extracts of Crocus sativus (saffron), and its active consistent, safranal, on the harmal...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2015-05-01 00:00:00
abstract：Objective:The role of growth factors, including vascular endothelial growth factor of activated omentum on mitosis is clearly known, though not on all the aspects of in vitro oocyte maturation. This study was designed to assess the effect of activated-omental extract (AOE) on in vitro maturation (IVM) of rat cumulus-oo...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/IJBMS.2017.9622
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE(S):Spermatogonial Stem Cells (SSCs) maintain spermatogenesis throughout the life of the male. Because of the small number of SSCs in adult, enriching and culturing them is a crucial step prior to differentiation or transplantation. Maintenance of SSCs and transplantation or induction of in vitro spermio-genes...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2013-02-01 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
abstract：Objectives:This study was to investigate the antihyperlipidemic and antioxidant effect of total flavonoid extract from Actinidiakolomikta (TFAK) in hyperlipidemia induced by a high-fat diet. Materials and Methods:Male SD rats were randomly divided into 6 groups: normal group, model (hyperlipidemic diet) group, hyperli...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/IJBMS.2017.9365
更新日期：2017-10-01 00:00:00
abstract：OBJECTIVES:Hepatitis C is a major cause of liver failure worldwide. Current therapies applied for this disease are not fully effective and produce side effects in most cases. Non-structural protein 3 helicase (NS3) of HCV is one of the key enzymes in viral replication and infection. Therefore, this region is a promisin...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2015-02-01 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:Weight gain and metabolic disturbances such as dyslipidemia, are frequent side effects of second-generation antipsychotics, including olanzapine. This study examined the metabolic effects of chronic olanzapine exposure. In addition, we investigated the hepatic fatty acid effects of olanzapine in female C57BL...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/IJBMS.2018.22759.5780
更新日期：2018-05-01 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:The aim of the study was to investigate the relationship between insulin resistance (IR) and leptin (LEP) gene polymorphisms in peritoneal dialysis (PD) patients. MATERIALS AND METHODS:From July 1, 2011 to August 1, 2011, patients who received chronic PD were chosen and divided into three groups (DM, high H...
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：OBJECTIVES:Solid dispersion formulation is the most promising strategy to improve oral bioavailability of poorly water soluble drugs. The aim of this study was to compare the effect of polyvinylpyrrolidone K30 (PVP) and poloxamer-188 (PLX) as carrier in solid dispersion formulations of celecoxib (CLX). MATERIALS AND M...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2014-05-01 00:00:00
abstract：OBJECTIVES:Eukaryotic translation initiation factor 4E (eIF4E) is overexpressed in cervical cancer (CC). However, the molecular mechanisms are unclear. This study aimed to investigate the molecular mechanism of eIF4E gene overexpression in CC. MATERIALS AND METHODS:The human papillomavirus (HPV) type 18 E7 and eIF4E m...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2015-07-01 00:00:00
abstract：:Cancer testis antigens (CTAs), a large family of tumor-associated and immunogenic antigens expressed in human tumors of various histological origins, are highly restricted to the testis and trophoblast. CTAs have been identified as potent targets for tumor-specific immunotherapeutic advances and have immensely lead to...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章,评审
doi：10.22038/IJBMS.2017.9259
更新日期：2017-09-01 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: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：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：Objectives:Copper (Cu) is an essential dietary supplement in animal feeds, which plays an important role in maintaining the balance of all living organisms. Copper nanoparticles (nCu) participate in catalysing activities of multiple antioxidant/defensive enzymes and exerts pro-inflammatory and pro-apoptotic effects on ...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/ijbms.2019.35787.8526
更新日期：2019-07-01 00:00:00
abstract：OBJECTIVES:Determination of stages of colon cancer is done by biopsy usually after surgery. Metabolomics is the study of all the metabolites using LC-MS and 1HNMR spectroscopy with chemometric techniques. The stages of colon cancer were detected from patients' sera using 1HNMR. MATERIALS AND METHODS:Five ml blood was ...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/IJBMS.2017.9022
更新日期：2017-07-01 00:00:00
abstract：OBJECTIVES:Acquisition of TNF-α resistance plays role in the onset and growth of malignant tumors. Previous studies have demonstrated that MCF-7 cell line and its doxorubicin resistant variant MCF-7/Adr are resistant against the cytotoxic effects of TNF-α. In this study, we investigated the role of Akt activation in re...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/ijbms.2016.7924
更新日期：2016-12-01 00:00:00
abstract：OBJECTIVES:To clarify the protective effects of Cichorium glandulosum (CG) extracts on thioacetamide (TAA)-induced rat hepatic fibrosis. MATERIALS AND METHODS:The dry roots of CG were smashed and percolated with 95% ethanol, and the residual was prepared into petroleum ether extract (CG-V), ethyl acetate extract (CG-V...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2014-11-01 00:00:00
abstract：OBJECTIVE(S):Atherosclerosis is a chronic immune-inflammatory disease that generally leads to ischemic heart disease. Ghrelin has several modulatory effects on cardiovascular system. In this study, we investigated the effect of ghrelin on aortic intima-media thickness, size and the number of adipocyte cells in obese an...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2013-08-01 00:00:00
abstract：OBJECTIVE(S):Garlic (Allium sativum L. family Liliaceae) is well known in Iran and its leaves, flowers, and cloves have been used in traditional medicine for a long time. Research in recent decades has shown widespread pharmacological effects of A. sativum and its organosulfur compounds especially Allicin. Studies carr...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章,评审
doi：
更新日期：2013-10-01 00:00:00
abstract：OBJECTIVE(S):In the current study, the effects of selected folk medicinal herbs were evaluated in D-galactose-induced aging in male mice. MATERIALS AND METHODS:Male BALB/c mice were randomly divided into 12 groups composing sham, control, and treated groups. Aging was induced by administration of D-galactose (500 mg/k...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：
更新日期：2013-11-01 00:00:00
abstract：Objectives:Heparin-binding hemagglutinin (HBHA), a mycobacterial cell surface protein, mediates adhesion to nonphagocytic cells and the dissemination of Mycobacterium tuberculosis (M. tuberculosis) from the site of primary infection. Superior expression systems are required to obtain abundant M. tuberculosis proteins f...
journal_title：Iranian journal of basic medical sciences
pub_type： 杂志文章
doi：10.22038/IJBMS.2018.24280.6064
更新日期：2018-02-01 00:00:00
abstract：OBJECTIVES:Endometriosis is a complex gynecologic disease with unknown etiology. Noscapine has been introduced as a cancer cell suppressor. Endometriosis was considered as a cancer like disorder, The aim of present study was to investigate noscapine apoptotic effect on human endometriotic epithelial and stromal cells i...
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
