Genetics and molecular research : GMR最新文献_第2页

Differential expression of hENT1 and hENT2 in colon cancer cell lines. 结肠癌细胞系中hENT1和hENT2的差异表达。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16019549

Y. Liu, T. Zuo, X. Zhu, N. Ahuja, T. Fu

{"title":"Differential expression of hENT1 and hENT2 in colon cancer cell lines.","authors":"Y. Liu, T. Zuo, X. Zhu, N. Ahuja, T. Fu","doi":"10.4238/gmr16019549","DOIUrl":"https://doi.org/10.4238/gmr16019549","url":null,"abstract":"Human equilibrative nucleoside transporters (hENT) 1 and 2, encoded by SLC29A1 and SLC29A2, permit the bidirectional passage of nucleoside analogues into cells and may correlate with clinical responses to chemotherapy in patients with colorectal cancer (CRC). The purpose of this study was to evaluate the expression profiles of SLC29A1 and SLC29A2 in human cancer cell lines. Using quantitative real-time polymerase chain reaction, we comprehensively profiled the transcription levels of SLC29A1 and SLC29A2 in 16 colon cancer cell lines. We validated the ubiquitous and heterogeneous distribution of SLC29A1 and SLC29A2 in human colon cancer cell lines and demonstrated that SLC29A1 was highly expressed in 25% of metastatic cell lines (Colo201 and Colo205) and 62.5% of primary cell lines (Caco2, Colo320, HCT116, RKO, and SW48). For the first time, we showed that both SLC29A1 and SLC29A2 were expressed at lower levels in colon cancer cell lines originating from metastatic sites than from primary sites. These findings indicate that most patients with metastatic CRC (mCRC) may have low hENT1 expression, and treatment with nucleoside analogues may be inefficient. However, some patients still show high hENT1 expression and have a high probability of benefiting from these drugs. Therefore, evaluating transporter expression profiles and different drug responses between primary and metastatic tumors in patients with mCRC is important. Further assessment of the association between hENTs and drug-based treatment of mCRC is required to elucidate the mechanisms of chemotherapy resistance.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128651166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Mutations in codons 12 and 13 of K-ras exon 2 in colorectal tumors of Saudi Arabian patients: frequency, clincopathological associations, and clinical outcomes. 沙特阿拉伯结直肠肿瘤患者K-ras外显子2密码子12和13突变:频率、临床病理关联和临床结果

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16019369

J. Zekri, Ahmed Alshehri, M. Mahrous, S. Al-Rehaily, Tarek Darwish, S. Bassi, H. E. Taani, A. A. Zahrani, S. Elsamany, J. Al-Maghrabi, B. Sadiq

{"title":"Mutations in codons 12 and 13 of K-ras exon 2 in colorectal tumors of Saudi Arabian patients: frequency, clincopathological associations, and clinical outcomes.","authors":"J. Zekri, Ahmed Alshehri, M. Mahrous, S. Al-Rehaily, Tarek Darwish, S. Bassi, H. E. Taani, A. A. Zahrani, S. Elsamany, J. Al-Maghrabi, B. Sadiq","doi":"10.4238/gmr16019369","DOIUrl":"https://doi.org/10.4238/gmr16019369","url":null,"abstract":"Mutations in codons 12/13 of K-ras exon 2 are associated with reduced benefit from anti-epidermal growth factor receptor antibody treatment for metastatic colorectal cancer (CRC). Here, we evaluated the frequency of K-ras mutations and their relationship with clinicopathological features and treatment outcomes in Saudi Arabian patients with CRC. The genetic status of K-ras was determined in 300 patients diagnosed with CRC. Clinical information was collected retrospectively. K-ras was wild-type in 58% and mutated in 42% of the tumors. Most mutations were at codon 12 (89%) and were associated with metastasis [odds ratio (OR) = 1.38 (95%CI = 1.14-1.67] and occurrence of >40 µg/L carcinoembryonic antigen (CEA) [OR = 1.33 (1.1-1.74)] during diagnosis. Patients in stages I-III of the disease with wild-type K-ras tumors had a median relapse free survival (RFS) of 29 months in contrast to 22 months for those with the mutated K-ras tumor (P = 0.0357). In multivariate analysis, only the stage of the disease significantly predicted RFS (P = 0.001). Patients in stage IV of CRC with the wild-type K-ras tumor did not reach the median overall survival (OS), whereas patients with the mutated K-ras tumor survived for 23.5 months (P = 0.044). CEA level >40 µg/L (P = 0.004) and status of K-ras (P = 0.044) were independent predictors of OS. This is the largest study investigating K-ras mutations in patients with CRC in the Middle East. Mutations were associated with advanced stage of CRC, higher serum CEA, shorter RFS and OS.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129478885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Osteoblast differentiation of rabbit adipose-derived stem cells by polyethylenimine-mediated BMP-2 gene transfection in vitro. 聚乙烯亚胺介导BMP-2基因转染兔脂肪干细胞成骨分化的实验研究。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16015358

Q. Wang, Y. Huang, Guochao He, Hui Wang, Zhe Chen, X. Cai, Y. Xie, Q. Liu

{"title":"Osteoblast differentiation of rabbit adipose-derived stem cells by polyethylenimine-mediated BMP-2 gene transfection in vitro.","authors":"Q. Wang, Y. Huang, Guochao He, Hui Wang, Zhe Chen, X. Cai, Y. Xie, Q. Liu","doi":"10.4238/gmr16015358","DOIUrl":"https://doi.org/10.4238/gmr16015358","url":null,"abstract":"The aim of this study was to examine the efficiency of polyethylenimine-mediated transfection of the human bone morphogenetic protein-2 (BMP-2) gene into rabbit adipose-derived stem cells (ADSCs), and its effect on osteoblast differentiation. Adipose tissue was isolated from the necks of adult Japanese white rabbits and cultured in vitro to obtain ADSCs. Gene delivery of BMP-2 was mediated by polyethylenimine and stable transformants were selected by G-418. The expression of BMP-2 mRNA was confirmed by reverse transcription-polymerase chain reaction, and of the BMP-2 protein by ELISA. Osteocalcin and collagen type I were detected by western blot and by an alkaline phosphatase kit. Alizarin red S stain was also utilized to examine osteogenesis. The non-transfected group was considered as a control. In this study, we successfully derived ADSCs from rabbit adipose tissue. Through passages 3-6, the expression of CD29 and CD44 gradually increased, whereas the expression of CD34 and CD45 gradually decreased. Both mRNA and protein expression of BMP-2 were confirmed following polyethylenimine-mediated BMP-2 gene delivery. In addition, the expression of alkaline phosphatase, osteocalcin, and collagen type I was found to be upregulated and alizarin red S staining was positive in transfected ADSCs, indicating BMP-2-induced osteogenesis. Therefore, this study determined that polyethylenimine was able to mediate BMP-2 gene delivery and induce osteogenic differentiation of ADSCs.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122506561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Maize endophytic bacteria as mineral phosphate solubilizers. 玉米内生细菌作为矿物磷酸盐增溶剂。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16019294

C. Abreu, J.E.F. Figueiredo, C. Oliveira, V. L. D. Santos, Eliane Aparecida Gomes, V. P. Ribeiro, B. A. Barros, U. Lana, I. Marriel, I. Marriel

{"title":"Maize endophytic bacteria as mineral phosphate solubilizers.","authors":"C. Abreu, J.E.F. Figueiredo, C. Oliveira, V. L. D. Santos, Eliane Aparecida Gomes, V. P. Ribeiro, B. A. Barros, U. Lana, I. Marriel, I. Marriel","doi":"10.4238/gmr16019294","DOIUrl":"https://doi.org/10.4238/gmr16019294","url":null,"abstract":"In the present study, we demonstrated the in vitro activity of endophytic phosphate-solubilizing bacteria (PSB). Fifty-five endophytic PSB that were isolated from sap, leaves, and roots of maize were tested for their ability to solubilize tricalcium phosphate and produce organic acid. Partial sequencing of the 16S rRNA-encoding gene showed that the isolates were from the genus Bacillus and different species of Enterobacteriaceae. The phosphate solubilization index on solid medium and phosphate solubilization in liquid medium varied significantly among the isolates. There was a statistically significant difference (P ≤ 0.05) for both, the values of phosphate-solubilizing activity and pH of the growth medium, among the isolates. Pearson correlation was statistically significant (P ≤ 0.05) between P-solubilization and pH (R = -0.38), and between the gluconic acid production and the lowering of the pH of the liquid medium at 6 (R = 0.28) and 9 days (R = 0.39). Gluconic acid production was prevalent in all the PSB studied, and Bacillus species were most efficient in solubilizing phosphate. This is the first report on the characterization of bacterial endophytes from maize and their use as potential biofertilizers. In addition, this may provide an alternative strategy for improving the phosphorus acquisition efficiency of crop plants in tropical soils.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131347569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 47

Polymorphism in the third intron of the interferonγ gene is associated with susceptibility to multiple sclerosis. 干扰素γ基因第三个内含子多态性与多发性硬化症易感性相关。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16017538

X. Wang, F. Meng, X. Wang, S. Wang, L. Guo

引用次数: 1

Development and validation of the first SSR markers for Mimosa scabrella Benth. 含羞草首批SSR标记的开发与验证。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16019571

F. Saiki, A. P. Bernardi, M. S. Reis, H. Faoro, E. M. Souza, F. Pedrosa, A. Mantovani, A. F. Guidolin

{"title":"Development and validation of the first SSR markers for Mimosa scabrella Benth.","authors":"F. Saiki, A. P. Bernardi, M. S. Reis, H. Faoro, E. M. Souza, F. Pedrosa, A. Mantovani, A. F. Guidolin","doi":"10.4238/gmr16019571","DOIUrl":"https://doi.org/10.4238/gmr16019571","url":null,"abstract":"Mimosa scabrella Benth., popularly known as ''bracatinga'', is a pioneer and endemic species of Brazil, occurring in Mixed Ombrophilous Forest associated with Brazilian Atlantic Rainforest biomes. It is a fast-growing tree of the Fabaceae family that facilitates the dynamics of ecological succession. SSR development, when there is no genome sequence, is time and labor intensive and there are no molecular markers for M. scabrella. We developed and validated the first microsatellite markers for this tetraploid species, evaluating mother trees and progenies. Using Illumina sequencing, we identified 290 SSR loci and 211 primer pairs. After 31 SSR loci PCR/agarose electrophoresis selection, a subset of 11 primer pairs was synthetized with fluorescence in the forward primer for PCR and capillary electrophoresis validation with leaf DNA of 33 adult and 411 progeny individuals. Polymorphic locus percentage was 36, 4 in 11 loci, 3 chloroplast SSRs, and 1 nuclear SSR. Allele number of polymorphic loci ranged from 2 to 11 alleles considering all sampling. All 11 primer pairs were also tested for cross-species amplification for five Fabaceae-Mimosoideae species, ranging from 2 loci transferred to Calliandra tweedii Benth. and all 11 loci transferred to Mimosa taimbensis Burkart. The assessed and validated SSR markers for M. scabrella are suitable and useful for analysis and population genetic studies.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126072493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

CASE-REPORT Dysregulation of gene expression in a patient with depressive disorder after transient ischemic attack confirmed by a neurophysiological neuromarker. 病例-报告:一过性脑缺血发作后抑郁症患者基因表达异常，经神经生理神经标记物证实。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16019532

M. Trystuła, M. Żychowska, M. Wilk-Frańczuk, J. Kropotov, M. Pąchalska

{"title":"CASE-REPORT Dysregulation of gene expression in a patient with depressive disorder after transient ischemic attack confirmed by a neurophysiological neuromarker.","authors":"M. Trystuła, M. Żychowska, M. Wilk-Frańczuk, J. Kropotov, M. Pąchalska","doi":"10.4238/gmr16019532","DOIUrl":"https://doi.org/10.4238/gmr16019532","url":null,"abstract":"The aim of this study was to evaluate dysregulation of gene expression associated with the cellular stress response in a patient with a post-\"warning stroke\" depressive disorder confirmed by the presence of a neurophysiological neuromarker through the use of quantitative EEG and event-related potentials. The patient was tested for seven genes associated with the stress reaction: HSPA1A, HSPB1, IL6, IL10, CRP, and HSF-1 along with NF-κB, compared to gene expression in health controls. A 54-year-old patient with a past history of schizophrenia (at the age of 20), and of transient ischemic attack (at the age of 53) and depressive disorder confirmed by functional, cognitive, emotional, and affectional diagnostics underwent additional testing for expression of the genes associated with stress response. The expression of genes coding for heat shock protein (HSPA1A, HSPB1), interleukins (IL6, IL10), and C-reactive protein was tested along with factors that regulate their expression. The results of the tests conducted on this patient were compared with 42 healthy control subjects. Diagnostic testing revealed upregulation in expression of these genes, presenting as increased expression of the target genes and of the regulatory genes. A post-\"warning stroke\" depressive disorder appears to be associated with overexpression of the genes coding for HSP and interleukins. Further research on larger groups of people may provide grounds for treatment modification.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127073942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Gene expressions levels of 14-3-3a, NKCCla, APO-14, and Na+-K+-ATPaseβ in gill tissue of Mugil cephalus acclimated to low salinity. 低盐度条件下鳙鱼鳃组织14-3-3 3a、NKCCla、APO-14和Na+-K+-ATPaseβ基因的表达水平。

Genetics and molecular research : GMR Pub Date : 2017-02-16 DOI: 10.4238/gmr16019444

L. Li, M. Jiang, Xin-qiang Shen

{"title":"Gene expressions levels of 14-3-3a, NKCCla, APO-14, and Na+-K+-ATPaseβ in gill tissue of Mugil cephalus acclimated to low salinity.","authors":"L. Li, M. Jiang, Xin-qiang Shen","doi":"10.4238/gmr16019444","DOIUrl":"https://doi.org/10.4238/gmr16019444","url":null,"abstract":"Fishes adapt to salinity changes primarily through osmotic pressure regulation, a process often associated with several genes, including 14-3-3a, NKCCla, APO-14, and Na+-K+-ATPaseβ. The present study investigated the differential expression of genes 14-3-3a, NKCCla, APO-14, and Na+-K+-ATPaseβ in the gill tissue of Mugil cephalus acclimated to low salinity. Susceptibility relationships between the four gene expressions levels and salinity were detected and analyzed using polymerase chain reaction-restriction fragment length polymorphism. Homology analysis results indicated significant differences in the correlation between gene expression and salinity. Under low-salt conditions, expression levels for genes Na+-K+-ATPaseβ and NKCC1a were significantly elevated (P < 0.05), whereas those of genes 14-3-3a and APO-14 were significantly reduced (P < 0.05). Thus, when compared to 14-3-3a and APO-14, Na+-K+-ATPaseβ, and NKCC1a may be better suited to promoting the development of osmotic-regulation mechanisms and increased resistance to environmental stress under low-salt conditions. Furthermore, Na+-K+-ATPaseβ and NKCC1a were identified as suitable potential molecular biomarkers for regulating and controlling genes in low-salinity aquatic environments.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"352 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121704179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Extraction of proteins and preliminary characterization of physicochemical properties in Toona sinensis fruit. 香椿果实中蛋白质的提取及理化性质的初步表征。

Genetics and molecular research : GMR Pub Date : 2017-02-08 DOI: 10.4238/gmr16019177

W.-Z. Li, Wengting Han, B. Liu, S-H Ding, X-K Zhang, R.-S. Wang

引用次数: 1

Complete mitochondrial genome of the Amur hedgehog Erinaceus amurensis (Erinaceidae) and higher phylogeny of the family Erinaceidae.

Genetics and molecular research : GMR Pub Date : 2017-02-08 DOI: 10.4238/gmr16019300

N. Kim, S. J. Lim, H. Chae, Y. C. Park

{"title":"Complete mitochondrial genome of the Amur hedgehog Erinaceus amurensis (Erinaceidae) and higher phylogeny of the family Erinaceidae.","authors":"N. Kim, S. J. Lim, H. Chae, Y. C. Park","doi":"10.4238/gmr16019300","DOIUrl":"https://doi.org/10.4238/gmr16019300","url":null,"abstract":"We sequenced and characterized the complete mitogenome (KX964606) of the Amur hedgehog Erinaceus amurensis to provide more data for comparative mitogenomics of the genus Erinaceus (Erinaceidae). The mitogenome of E. amurensis is a circular molecule 16,941 bp long, consisting of a control region and a conserved set of 37 genes containing 13 protein-coding genes, 22 tRNA genes, and two rRNA genes (12S rRNA and 16S rRNA). The mitogenome of E. amurensis is AT-biased, with a nucleotide composition of 33.9% A, 21.1% C, 32.6% T, and 12.4% G. The mitogenomes of E. amurensis and the closely related hedgehog species E. europaeus, excluding the control region (66.7%), share over 90% sequence similarity. According to the inter-generic relationship based on six mitogenomes described from five genera of Erinaceidae, the subfamilies Erinaceinae and Galericinae are strongly supported as monophyletic groups, with each genus well placed within its own subfamily. Within the subfamily Erinaceinae, E. amurensis is a sister species to E. europaeus, and the relationship between Hemiechinus and Erinaceus is strongly supported. Within the subfamily Galericinae, the clade of Hylomys + Neotetracus was sister to that of Echinosorex, with clades supported by high values. Our findings will help to understand the codon usage pattern and molecular evolution of E. amurensis, and provide insight into inter-generic relationships within the family Erinaceidae. In future studies, the inclusion of mitogenomes from other genera would greatly enhance our understanding of higher phylogeny within the Erinaceidae.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123968105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8