Guo J.Y.,Youjiang Medical College for Nationalities
Zhonghua wei chang wai ke za zhi = Chinese journal of gastrointestinal surgery | Year: 2012
To investigate single nucleotide polymorphisms(SNPs) and haplotypes of interleukin-18(IL-18) gene associated with the susceptibility to colorectal cancer(CRC). Two SNPs of IL-18 gene promoter -137G/C and -607C/A in 170 patients with CRC and 160 healthy controls matched by age and sex in a Chinese population were analyzed using polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) strategy. Frequency of haplotypes and linkage disequilibrium of IL-18 gene in different groups were analyzed by SHEsis programs. The distributions of IL-18 gene -607C/A polymorphism did not differ between CRC patients and healthy controls, but IL-18 gene -137G/C polymorphism was significantly different(P<0.05). The relative risk of C allele for CRC was 1.814 times of the G allele (OR=1.814,95% CI:1.246-2.642). Consistent with the results of the genotyping analyses, IL-18 -137G/C and -607C/A polymorphisms showed strong linkage disequilibrium(|D'|=0.945), frequency of the -137C/-607A haplotype in patients with CRC was significantly higher than that in healthy controls(P<0.05). The -137C/-607A haplotype was associated with a significantly increased risk of CRC(OR=1.637, 95% CI:1.100-2.437). IL-18 gene -137G/C polymorphism and -137C/-607A haplotype are associated with CRC. -137C allele may be an important genetic susceptibility gene for CRC.
Lin X.,Guangxi Medical University |
Huang Z.,Youjiang Medical College for Nationalities |
Chen X.,Guangxi Medical University |
Rong Y.,Guangxi Medical University |
And 4 more authors.
Carbohydrate Polymers | Year: 2014
A polysaccharide (PMP) was isolated from Millettia pulchra and purified by DEAE-cellulose and Sephadex G-75 chromatography. The results showed that PMP was composed of d-glucose and d-arabinose in a molar ratio of 90.79% and 9.21%, with an average molecular weight of about 14,301 Da. Furthermore, the effect of PMP on cognitive impairment induced by d-galactose in mice was evaluated. Treatment with PMP significantly reversed d-galactose-induced learning and memory impairments, as measured by behavioral tests. One of the potential mechanisms of this action was to reduce oxidative stress and suppress inflammatory responses. Furthermore, our results also showed that PMP markedly reduced the content and deposition of β-amyloid peptide, improved the dysfunction of synaptic plasticity, increased the levels of acetylcholine, but decreased cholinesterase activity. These results suggest that PMP exerts an effective protection against d-galactose-induced cognitive impairment, and PMP may be a major bioactive ingredient in M. pulchra.© 2013 Elsevier Ltd. All rights reserved.
Xu D.-W.,Shanghai JiaoTong University |
Long X.-D.,Shanghai JiaoTong University |
Long X.-D.,Youjiang Medical College for Nationalities |
Xia Q.,Shanghai JiaoTong University
International Journal of Clinical and Experimental Medicine | Year: 2015
Living-donor liver transplantation (LDLT) has increasingly performed all around the world. However, LDLT donors achieve no medical benefits and are exposed to the risk of complications, and even death. The potential effects of LDLT on donor safety, donor recovery, and post-donation psychological impairment are essential to be better understood. We searched the MEDLINE database to identify articles about the quality of life (QOL) in adults after LDLT donation. Twenty-eight studies with a total of 1944 donors were included in the review. 14 of the 28 studies (50%) had a cross-sectional design, and the remaining half had a prospective design. The Physical Component Score (PCS) decreased immediately after the donation, then returned to the baseline within 6 to 12 months while the Mental Component Score (MCS) remains comparable to that of normative population throughout the procedure. Compared with the left graft (LG) donors, right graft (RG) donors were significantly older, had longer hospital stays and higher rates of postoperative complications, and a higher recipient mortality rate, while there were no difference in the PCS and MCS between the two groups. Our review clearly indicates that the LDLT donors can endure the donation procedure and return to their normal daily life without major problem in the short term. However, to improve the donor selection criteria and ensure the QOL in donors throughout donation procedure, more studies with longer follow up and larger samples are essential and predictors of poor QOL should be identified in study with sufficient response rate and ideal control groups. © 2015, E-Century Publishing Corporation. All Rights Reserved.
Li J.,Shanghai JiaoTong University |
Xu Y.,CAS Shanghai Institutes for Biological Sciences |
Long X.-D.,Shanghai Cancer Institute |
Long X.-D.,Youjiang Medical College for Nationalities |
And 11 more authors.
Cancer Cell | Year: 2014
Cbx4 is a polycomb group protein that is also a SUMO E3 ligase, but its potential roles in tumorigenesis remain to be explored. Here, we report that Cbx4, but not other members of the Cbx family, enhances hypoxia-induced vascular endothelial growth factor (VEGF) expression and angiogenesis in hepatocellular carcinoma (HCC) cells through enhancing HIF-1α sumoylations at K391 and K477 in its two SUMO-interacting motifs-dependent mechanisms and increasing transcriptional activity of HIF-1. The Cbx4 expression is significantly correlated with VEGF expression, angiogenesis, and the overall survival of HCC patients and also in subcutaneously and orthotopically transplanted mice HCC models. Collectively, our findings demonstrate that Cbx4 plays a critical role in tumor angiogenesis by governing HIF-1α protein. © 2014 Elsevier Inc.
Song Y.,Southern Medical University |
Luo Q.,Southern Medical University |
Luo Q.,Youjiang Medical College for Nationalities |
Long H.,Southern Medical University |
And 10 more authors.
Molecular Cancer | Year: 2014
Background: The success of using glycolytic inhibitors for cancer treatment relies on better understanding the roles of each frequently deregulated glycolytic genes in cancer. This report analyzed the involvement of a key glycolytic enzyme, alpha-enolase (ENO1), in tumor progression and prognosis of human glioma.Methods: ENO1 expression levels were examined in glioma tissues and normal brain (NB) tissues. The molecular mechanisms of ENO1 expression and its effects on cell growth, migration and invasion were also explored by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide (MTT) assay, Transwell chamber assay, Boyden chamber assay, Western blot and in vivo tumorigenesis in nude mice.Results: ENO1 mRNA and protein levels were upregulated in glioma tissues compared to NB. In addition, increased ENO1 was associated disease progression in glioma samples. Knocking down ENO1 expression not only significantly decreased cell proliferation, but also markedly inhibited cell migration and invasion as well as in vivo tumorigenesis. Mechanistic analyses revealed that Cyclin D1, Cyclin E1, pRb, and NF-κB were downregulated after stable ENO1 knockdown in glioma U251 and U87 cells. Conversely, knockdown of ENO1 resulted in restoration of E-cadherin expression and suppression of mesenchymal cell markers, such as Vimentin, Snail, N-Cadherin, β-Catenin and Slug. Furthermore, ENO1 suppression inactivated PI3K/Akt pathway regulating the cell growth and epithelial-mesenchymal transition (EMT) progression.Conclusion: Overexpression of ENO1 is associated with glioma progression. Knockdown of ENO1 expression led to suppressed cell growth, migration and invasion progression by inactivating the PI3K/Akt pathway in glioma cells. © 2014 Song et al.; licensee BioMed Central Ltd.