{"title":"Effect of pregnancy on the proliferation of rat adipose-derived stem cells.","authors":"J. Li, Yayong Zhang, Yimei Wang, J. -. Chen","doi":"10.4238/gmr16019059","DOIUrl":"https://doi.org/10.4238/gmr16019059","url":null,"abstract":"Stem cell therapy faces many problems including poor survival rates and low viability. Enhancing the biological functions of stem cells improves efficacy of therapies. Estrogen, whose levels are elevated during pregnancy, affects the properties of bone marrow mesenchymal stem cells. Evidence suggests that adipose-derived stem cells (ADSCs), which are a type of adult mesenchymal stem cells, can be used in regenerative medicine. In fact, ADSCs from pregnant animals have been used in clinical therapies. However, the effect of the donor's reproductive status on proliferation of ADSCs is unknown. We investigated the effect of 17β-estradiol (E2) and progesterone (P) on the in vitro proliferation of ADSCs from laboratory rats. ADSCs were obtained from five different groups of 15 rats each - non-pregnant, pregnant, in perinatal period, non-pregnant and treated with E2, and non-pregnant and treated with P. Adhesion and viability of ADSCs were determined by MTT assay, and cell cycle was followed by flow cytometry. The proliferation rate of ADSCs from pregnant rats was significantly higher than those from the non-pregnant rats (P < 0.05); however, there was no statistically significant difference in proliferation rates during different phases of pregnancy (P > 0.05). Additionally, ADSCs from pregnant rats possess higher adhesion property in early stage (P1 passage) and higher proliferation rate than ADSCs from non-pregnant rats. Interestingly, ADSCs from non-pregnant rats that were treated with E2, but not those treated with P, showed higher proliferation rates than those from their untreated counterparts. These results suggest that the proliferative capacity and residence time in different cell cycle phases of ADSCs can be regulated by extrinsic factors such as estrogen concentration.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130700301","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}
{"title":"Long non-coding RNA ENST00000457645 reverses cisplatin resistance in CP70 ovarian cancer cells.","authors":"H. Yan, J. Xia, F. Feng","doi":"10.4238/gmr16019411","DOIUrl":"https://doi.org/10.4238/gmr16019411","url":null,"abstract":"The objective of this study was to investigate the effect of downregulating long non-coding RNAs (lncRNAs) on the reversal of cisplatin resistance in CP70 ovarian cancer cells, and to identify the underlying mechanism(s) of action. An lncRNA microarray was performed to screen for downregulated lncRNAs in cisplatin-resistant CP70 cells. Expression levels of these lncRNAs were then verified in SKOV3 and SKOV3/DDP cells. Quantitative polymerase chain reaction was conducted to identify the lncRNA most downregulated, which was then synthesized and transfected into CP70 cells. To assess the viability and migration ability of these transfected CP70 cells, methyl thiazolyl tetrazolium and Transwell assays were carried out. In addition, expression levels of apoptosis-related proteins were examined by western blotting. The lncRNA microarray analysis and qPCR identified seven lncRNAs that were significantly downregulated. Transfection of lncRNA ENST00000457645 into CP70 cells markedly inhibited viability and migration ability, and significantly increased expression of apoptotic proteins such as Bax and cleaved caspase-3. lncRNA ENST00000457645 negatively affects the viability and migration of cisplatin-resistant CP70 ovarian cancer cells. The mechanism responsible involves modification of apoptotic protein expression.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130498766","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}
{"title":"Meta-analysis of TP73 polymorphism and cervical cancer.","authors":"H. Feng, L. Sui, M. Du, Qing Wang","doi":"10.4238/gmr16016571","DOIUrl":"https://doi.org/10.4238/gmr16016571","url":null,"abstract":"The aim of this study was to investigate the tumor protein p73 (TP73) G4C14-A4T14 polymorphism and to perform a meta-analysis to assess TP73 expression in cervical cancer and precancerous tissue. Articles containing data regarding TP73 status in cervical cancer patients and healthy controls were retrieved from PubMed, EMBASE, Cochrane, Chinese Biomedical Literature, and China National Knowledge Infrastructure databases. Then, the quality of the studies was evaluated according to inclusion and exclusion criteria. Odds ratios between the case and control groups were used as an effect evaluation index and the RevMan 5.0 software was employed to carry out the meta-analysis. Three independent investigations including 8452 cases of cervical cancer and 8326 healthy controls were included in our study following the application of inclusion and exclusion criteria. PCR genotyping revealed that the TP73 GC/GC genotype produced a 193-bp product, while the AT/AT genotype produced a 270-bp fragment, and GC/AT genotype samples produced two fragments of 193 and 270 bp. Meta-analysis showed that TP73 expression in cervical cancer was significantly higher than that in normal cervical squamous epithelium (P < 0.05). This elevated expression may play an important role in the occurrence and development of cervical cancer. Therefore, TP73 testing might be useful in the screening and diagnosis of cervical cancer and precancerous lesions.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131833047","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}
A. Coelho, S. Silva, Luigi Zandonà, G. Stocco, G. Decorti, S. Crovella
{"title":"Role of inosine triphosphate pyrophosphatase gene variant on fever incidence during zidovudine antiretroviral therapy.","authors":"A. Coelho, S. Silva, Luigi Zandonà, G. Stocco, G. Decorti, S. Crovella","doi":"10.4238/gmr16019373","DOIUrl":"https://doi.org/10.4238/gmr16019373","url":null,"abstract":"Zidovudine, the antiretroviral drug used to treat HIV infection, commonly causes adverse effects, such as systemic fever and gastrointestinal alterations. In the present study, the potential role of inosine triphosphate pyrophosphatase (ITPA) gene variant on the incidence of adverse events during antiretroviral therapy (ART) of HIV with zidovudine was discussed. Individuals from Northeastern Brazil (N = 204) receiving treatment for HIV-1 infection were recruited. Zidovudine-related adverse effects developed during the treatment were registered. The rs1127354 polymorphism in the ITPA gene was genotyped using real-time PCR to assess whether this single nucleotide polymorphism was associated with the occurrence of zidovudine-related adverse effects. We observed a significant association between the ITPA variant genotype and the reported systemic fever (odds ratio = 7.17, 95% confidence interval = 1.19-43.15; P = 0.032). Zidovudine use could indirectly lead to an increase in the levels of inosine monophosphate in an antimetabolite-like manner, which is converted to inosine triphosphate (ITP). The rs1127354 variant caused a decrease in ITPA activity, thereby leading to ITP accumulation. This in turn resulted in cytotoxicity, which was manifested by neutropenia and fever. Therefore, we hypothesized a pharmacogenetic model involving the ITPA variant genotype in multifactorial components that act together to determine the onset of zidovudine-related adverse effects.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128782451","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}
K. Kempf, C. Malisch, C. Grieder, F. Widmer, R. Kölliker
{"title":"Marker-trait association analysis for agronomic and compositional traits in sainfoin (Onobrychis viciifolia).","authors":"K. Kempf, C. Malisch, C. Grieder, F. Widmer, R. Kölliker","doi":"10.4238/gmr16019483","DOIUrl":"https://doi.org/10.4238/gmr16019483","url":null,"abstract":"Sainfoin (Onobrychis viciifolia) is a perennial forage legume with great potential for use in sustainable agriculture due to its low input requirements, good drought tolerance, and production of forage rich in polyphenolic compounds, which are beneficial for animal health. However, its distribution and cultivation are limited due to its moderate agronomic performance and a general lack of well adapted, highly yielding cultivars. Faster progress in breeding is imperative, but is often hampered by the complex inheritance of traits and limited knowledge on the genetic composition of this tetraploid, outbreeding species. Molecular genetic tools might aid phenotypic selection; however, to date no information on marker-trait associations is available for sainfoin. Hence, the goal of the present study was to detect marker-trait associations in a biparental F1 population. Single plants were screened for recently developed genetic markers and phenotyped for important agronomic traits and concentrations of different polyphenolic compounds. Significant trait-associated markers (TAM) were detected for plant height (11), plant vigor (1), and seed yield (7). These three traits were positively correlated with each other and shared some TAMs. Correlations among markers suggested that two independent loci control these three vigor-related traits. One additional, independent TAM was detected for the share of prodelphinidins in total condensed tannins. Our results provide insight into the genetic control of important traits of sainfoin, and the TAMs reported here could assist selection in combination with phenotypic assessment.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116107821","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}
T. Vendruscolo, M. Barelli, M. Castrillon, R. S. da Silva, F. T. D. de Oliveira, C. L. Corrêa, B. W. Zago, F. Tardin
{"title":"Correlation and path analysis of biomass sorghum production.","authors":"T. Vendruscolo, M. Barelli, M. Castrillon, R. S. da Silva, F. T. D. de Oliveira, C. L. Corrêa, B. W. Zago, F. Tardin","doi":"10.4238/gmr15049086","DOIUrl":"https://doi.org/10.4238/gmr15049086","url":null,"abstract":"Sorghum biomass is an interesting raw material for bioenergy production due to its versatility, potential of being a renewable energy source, and low-cost of production. The objective of this study was to evaluate the genetic variability of biomass sorghum genotypes and to estimate genotypic, phenotypic, and environmental correlations, and direct and indirect effects of seven agronomic traits through path analysis. Thirty-four biomass sorghum genotypes and two forage sorghum genotypes were cultivated in a randomized block design with three replicates. The following morpho-agronomic traits were evaluated: flowering date, stem diameter, number of stems, plant height, number of leaves, green mass production, and dry matter production. There were significant differences at the 1% level for all traits. The highest genotypic correlation was found between the traits green mass production and dry matter production. The path analysis demonstrated that green mass production and number of leaves can assist in the selection of dry matter production.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125368090","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}
P. Li, D. Cao, X. B. Liu, Y. J. Wang, H. Y. Yu, X. Li, Q. Zhang, X. B. Wang
{"title":"Karyotype analysis and ribosomal gene localization of spotted knifejaw Oplegnathus punctatus.","authors":"P. Li, D. Cao, X. B. Liu, Y. J. Wang, H. Y. Yu, X. Li, Q. Zhang, X. B. Wang","doi":"10.4238/gmr15049159","DOIUrl":"https://doi.org/10.4238/gmr15049159","url":null,"abstract":"The spotted knifejaw, Oplegnathus punctatus, is an important aquaculture fish species in China. To better understand the chromosomal microstructure and the karyotypic origin of this species, cytogenetic analysis was performed using Giemsa staining to identify metaphase chromosomes, C-banding to detect C-positive heterochromatin, silver staining to identify the nucleolus organizer regions (Ag-NORs), and fluorescence in situ hybridization (FISH) for physical mapping of the major (18S rDNA) and minor (5S rDNA) ribosomal genes. The species showed a karyotype of 2n = 48 for females, composed of 2 submetacentric and 46 telocentric chromosomes, with a fundamental number (FN) = 50, while the karyotype of males was 2n = 47, composed of 1 exclusive large metacentric, 2 submetacentric, and 44 telocentric chromosomes, with FN = 50. These karyotype results suggest that O. punctatus might have an X1X1X2X2/X1X2Y multiple sex chromosome system. C-positive heterochromatin was distributed in the centromeres of all chromosomal pairs and in the terminal portions of some chromosomes. A single pair of Ag-positive NORs was found to be localized at the terminal regions of the short arms of the subtelocentric chromosome pair, which was supported by FISH of 18S rDNA. After FISH, 5S rDNA were located on the interstitial regions of the smallest telocentric chromosome pair. This study was the first to identify the karyotype of this species and will facilitate further research on karyotype evolution in the order Perciformes.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129944529","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}
{"title":"Cloning of three genes involved in the flavonoid metabolic pathway and their expression during insect resistance in Pinus massoniana Lamb.","authors":"Z. Yang, H. Chen, J. Tan, H. Xu, J. Jia, Y. Feng","doi":"10.4238/gmr15049332","DOIUrl":"https://doi.org/10.4238/gmr15049332","url":null,"abstract":"Pinus massoniana Lamb. is an important timber and turpentine-producing tree species in China. Dendrolimus punctatus and Dasychira axutha are leaf-eating pests that have harmful effects on P. massoniana production. Few studies have focused on the molecular mechanisms underlying pest resistance in P. massoniana. Based on sequencing analysis of the transcriptomes of insect-resistant P. massoniana, three key genes involved in the flavonoid metabolic pathway were identified in the present study (PmF3H, PmF3'5'H, and PmC4H). Structural domain analysis showed that the PmF3H gene contains typical binding sites for the 2OG-Fe (II) oxygenase superfamily, while PmF3'5'H and PmC4H both contain the cytochrome P450 structural domain, which is specific for P450 enzymes. Phylogenetic analysis showed that each of the three P. massoniana genes, and the homologous genes in gymnosperms, clustered into a group. Expression of these three genes was highest in the stems, and was higher in the insect-resistant P. massoniana varieties than in the controls. The extent of the increased expression in the insect-resistant P. massoniana varieties indicated that these three genes are involved in defense mechanisms against pests in this species. In the insect-resistant varieties, rapid induction of PmF3H increased the levels of PmF3'5'H and PmC4H expression. The enhanced anti-pest capability of the insect-resistant varieties could be related to temperature and humidity. In addition, these results suggest that these three genes maycontribute to the change in flower color during female cone development.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121574264","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}
C. Ma, L. Wang, U. Lee, K. Tanabe, S. Kang, C. X. Zhang
{"title":"Pre-harvest foliar application of ethephon strengthens gibberellins-induced fruit expansion in Pyrus pyrifolia.","authors":"C. Ma, L. Wang, U. Lee, K. Tanabe, S. Kang, C. X. Zhang","doi":"10.4238/gmr15049339","DOIUrl":"https://doi.org/10.4238/gmr15049339","url":null,"abstract":"To identify the roles of ethylene in fruit development in Japanese pear Pyrus pyrifolia 'Niitaka', one of the non-climacteric genotypes, source-sink strength and fruit development during fruit expansion were investigated when ethephon was applied after a conventional gibberellic acid (GA) lanolin paste treatment on the pedicel. The results demonstrate that the conventional GA treatment during the early stage of fruit expansion resulted in larger fruit size and advanced fruit maturation, but pre-harvest foliar application of ethephon only advanced fruit maturation. However, pre-harvest foliar application of ethephon with a preceding conventional GA treatment during the early stage of fruit expansion dramatically improved fruit size and advanced fruit maturation over GA or ethephon alone. Moreover, the early foliar application of ethephon showed a better efficacy in increasing fruit size than the late spraying. A further study revealed that when ethephon was applied after the conventional GA treatment, it improved source-sink strength associated with leaf photosynthesis and the specific rate of [13C] accumulation in fruit, and also strengthened cell expansion more than did GA or ethephon alone.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"15 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128854227","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}
{"title":"Role of XRCC1 gene polymorphisms in non-small cell lung cancer cisplatin-based chemotherapy, and their effect on clinical and pathological characteristics.","authors":"H. F. Liu, J. Liu, J. Deng, R. Wu","doi":"10.4238/gmr15049084","DOIUrl":"https://doi.org/10.4238/gmr15049084","url":null,"abstract":"Non-small cell lung cancer (NSCLC) is the most common cancer globally. The XRCC1 protein interacts with ligase and poly(ADP-ribose) polymerase to repair cisplatin-induced DNA damage. The authors of previous studies have reported XRCC1 Arg399Gln, Arg280His, and Arg194Trp polymorphisms and advanced NSCLC prognosis, but the results are inconclusive. We investigated the association between clinical outcome and XRCC1 Arg399Gln, Arg280His, and Arg194Trp polymorphisms in advanced NSCLC patients treated with cisplatin. We recruited 252 patients with advanced NSCLC (TNM stages: IIIB and IV) and used polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to genotype the polymorphisms. Patients with the TT genotype of XRCC1 Arg194Trp showed a significantly better response to chemotherapy than those with the CC genotype. The GA+AA genotype of Arg194Trp was correlated with better response to chemotherapy than the wild-type form. The TT genotype of Arg194Trp was associated with longer survival time than the CC genotype. The TT genotype of Arg194Trp was correlated with lower risk of death from all causes than the CC genotype. The Arg194Trp polymorphisms interacted with squamous cell carcinoma and affected overall survival of advanced NSCLC. However, there was no association between Arg399Gln and Arg280His polymorphisms and response to cisplatin-based chemotherapy and overall survival in advanced NSCLC. The results suggest that the TT genotype of Arg194Trp is significantly associated with better response to chemotherapy and longer overall survival of advanced NSCLC patients than the wild-type form. Our investigation offers insight into the influence of XRCC1 gene polymorphisms on the treatment outcome of advanced NSCLC.","PeriodicalId":189314,"journal":{"name":"Genetics and molecular research : GMR","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127652005","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}