226
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Cai L, Stauder M, Zhang Y, Poortmans P, Li Y, Constantinou N, Thariat J, Kadish S, Ozsahin M, Mirimanoff R. Early Stage Primary Bone Lymphoma: A Retrospective, Multicenter Rare Cancer Network Study. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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227
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Liu G, Li H, Cai L. Processed pseudogenes are located preferentially in regions of low recombination rates in the human genome. J Evol Biol 2010; 23:1107-15. [PMID: 20345820 DOI: 10.1111/j.1420-9101.2010.01974.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The aim of this article is to demonstrate possible recombination-associated evolutionary forces affecting the genomic distribution of processed pseudogenes. The relationship between recombination rate and the distribution of processed pseudogenes is analysed in the human genome. The results show that processed pseudogenes preferentially accumulate in regions of low recombination rates and this correlation cannot be explained by indirect relationships with GC content and gene density. Several explanatory models for the observation are discussed. A model of selection against ectopic recombination is tested based on the difference in distribution pattern between two classes of processed pseudogenes, which differ in the possibility of stimulating ectopic recombination. Our results indicate that the correlation between processed pseudogene density and recombination rate is probably results, in part, from the selection against ectopic recombination between closely located homologous processed pseudogenes. We also found a length effect in processed pseudogene distribution, namely long processed pseudogenes are located more preferentially in regions of low recombination rates than short ones.
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228
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Shao Z, Huang B, Zhang J, Zhou S, He P, Chen D, Cui S, Ren C, Cai L, Shi J. 22 First interim analysis of a randomized trial comparing capecitabine/epirubicin/cyclophosphamide (XEC) vs 5-FU/epirubicin/cyclophosphamide (FEC) as adjuvant therapy for medium- or high-risk early breast cancer (EBC). EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)70053-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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229
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Cai L, Kong F, Toi C, van Hal S, Gilbert GL. Differentiation of Chlamydia trachomatis lymphogranuloma venereum-related serovars from other serovars using multiplex allele-specific polymerase chain reaction and high-resolution melting analysis. Int J STD AIDS 2010; 21:101-4. [DOI: 10.1258/ijsa.2009.009013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Lymphogranuloma venereum (LGV) is a sexually transmitted infection caused by Chlamydia trachomatis serovars L1, L2 and L3. Consequently, more specific and sensitive detection methods that are rapid and inexpensive are necessary to differentiate between C. trachomatis serovars. The purpose of this study was to identify and differentiate LGV-related C. trachomatis serovars from rectal swabs using high-resolution melting analysis (HRMA) and multiplex allele-specific polymerase chain reaction (MAS-PCR). Fifteen clinical samples from patients in Sydney were first screened and confirmed as C. trachomatis by using the COBAS®AMPLICOR PCR analyser. The same samples were assayed for C. trachomatis and LGV by HRMA and MAS-PCR of the polymorphic membrane protein H ( pmpH) gene. Both methods indicated that two of 15 samples were serovar L2 and the remainder (13/15) other C. trachomatis serovars. Both HRMA and MAS-PCR are inexpensive, rapid, easy methods that are useful tools for the identification of LGV in clinical and research laboratories.
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230
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Ke Jin I, Wu Q, Li X, Geng H, Cai L, Zhou X, Jing F. The P-V-Tequation of state of Au and Pt: An alternative pressure scale in high P-Texperiments. EPJ WEB OF CONFERENCES 2010. [DOI: 10.1051/epjconf/20101000033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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231
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Zhang C, Su Z, Zhao B, Qu Q, Tan Y, Cai L, Li X. Tat-modified leptin is more accessible to hypothalamus through brain-blood barrier with a significant inhibition of body-weight gain in high-fat-diet fed mice. Exp Clin Endocrinol Diabetes 2009; 118:31-7. [PMID: 19472101 DOI: 10.1055/s-0029-1202273] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Obesity in human was found mainly due to the poor transportation of leptin through brain-blood barrier (BBB), called as leptin resistance. To produce a leptin capable of penetrating BBB, we have added Tat-PTD(9) to the C terminal of leptin to construct a fusion protein. The fusion Tat-leptin and native leptin genes were synthesized by single-step insertion of a polymerase chain reaction and expressed in Escherichia coli BL21 (Rosseta). The expressing products were purified and renatured by Ni-NTA affinity chromatography, and identified by the molecular size in SDS-PAGE gel and by its immunoreactivity to specific antibody with Western-blotting assay. To bio-functionally evaluate the fusion protein, Balb/c mice fed with high-fat diet (HFD) were given Tat-leptin, leptin or saline for 19 days. The immunohistochemical staining showed the increases in positive stains for the leptin in the region of hypothalamus of the HFD mice with either Tat-leptin or leptin as compared to saline group, but the staining intensity and frequency in the group with Tat-leptin were stronger and higher than those in the group with leptin. Furthermore, the most efficiency in preventing the body-weight gain caused by HFD was found in Tat-leptin group among these three groups. These results suggest that Tat-modified leptin may become a great potential candidate for the prevention or therapy of obese patients.
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232
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Huang D, Cai L, Ma X. [Relationship between hygienic habit and parasitic infection]. ZHONGGUO JI SHENG CHONG XUE YU JI SHENG CHONG BING ZA ZHI = CHINESE JOURNAL OF PARASITOLOGY & PARASITIC DISEASES 2009; 17:318. [PMID: 12563873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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233
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Pan X, Wu T, Zhang L, Cai L, Song Z. Influence of oligosaccharides on the growth and tolerance capacity of lactobacilli to simulated stress environment. Lett Appl Microbiol 2009; 48:362-7. [DOI: 10.1111/j.1472-765x.2008.02539.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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234
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Sun J, Xu Z, Lou J, Cai L, Wu C, Zheng S. Abstract No. 199: Usefulness of Soft-Tissue Reconstruction with Angiography/CT Suite Using Flat-Panel Detector Technology in Procedures of Transcatheter Arterial Chemoembolization for Hepatocellular Carcinoma. J Vasc Interv Radiol 2009. [DOI: 10.1016/j.jvir.2008.12.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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235
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Nair S, Doh ST, Chan JY, Kong AN, Cai L. Regulatory potential for concerted modulation of Nrf2- and Nfkb1-mediated gene expression in inflammation and carcinogenesis. Br J Cancer 2008; 99:2070-82. [PMID: 19050705 PMCID: PMC2607222 DOI: 10.1038/sj.bjc.6604703] [Citation(s) in RCA: 123] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Many studies have implicated nuclear factor E2-related factor 2 (Nrf2) and nuclear factor-kappaB1 (Nfkb1) in inflammation and cancer. However, the regulatory potential for crosstalk between these two important transcription factors in inflammation and carcinogenesis has not been explored. To delineate conserved transcription factor-binding site signatures, we performed bioinformatic analyses on the promoter regions of human and murine Nrf2 and Nfkb1. We performed multiple sequence alignment of Nrf2 and Nfkb1 genes in five mammalian species - human, chimpanzee, dog, mouse and rat - to explore conserved biological features. We constructed a canonical regulatory network for concerted modulation of Nrf2 and Nfkb1 involving several members of the mitogen-activated protein kinase (MAPK) family and present a putative model for concerted modulation of Nrf2 and Nfkb1 in inflammation/carcinogenesis. Our results reflect potential for putative crosstalk between Nrf2 and Nfkb1 modulated through the MAPK cascade that may influence inflammation-associated etiopathogenesis of cancer. Taken together, the elucidation of potential relationships between Nrf2 and Nfkb1 may help to better understand transcriptional regulation, as well as transcription factor networks, associated with the etiopathogenesis of inflammation and cancer.
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236
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Cai L, Ji A, Li Y, deBeer F, Tannock L, vander westhuyzen D. THE HDL RECEPTOR SR-BI PLAYS AN IMPORTANT ROLE IN INFLAMMATION AND PROTECTS AGAINST ENDOTOXEMIA IN MICE. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70165-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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237
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Hussong AM, Cai L, Curran PJ, Flora DB, Chassin LA, Zucker RA. Disaggregating the distal, proximal, and time-varying effects of parent alcoholism on children's internalizing symptoms. JOURNAL OF ABNORMAL CHILD PSYCHOLOGY 2008; 36:335-46. [PMID: 17891557 PMCID: PMC2785434 DOI: 10.1007/s10802-007-9181-9] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2007] [Accepted: 08/27/2007] [Indexed: 11/27/2022]
Abstract
We tested whether children show greater internalizing symptoms when their parents are actively abusing alcohol. In an integrative data analysis, we combined observations over ages 2 through 17 from two longitudinal studies of children of alcoholic parents and matched controls recruited from the community. Using a mixed modeling approach, we tested whether children showed elevated mother- and child-reported internalizing symptoms (a) at the same time that parents showed alcohol-related consequences (time-varying effects), (b) if parents showed greater alcohol-related consequences during the study period (proximal effects), and (c) if parents had a lifetime diagnosis of alcoholism that predated the study period (distal effects). No support for time-varying effects was found; proximal effects of mothers' alcohol-related consequences on child-reported internalizing symptoms were found and distal effects of mother and father alcoholism predicted greater internalizing symptoms among children of alcoholic parents. Implications for the time-embedded relations between parent alcoholism and children's internalizing symptoms are discussed.
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238
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Reay DP, Bilbao R, Koppanati BM, Cai L, O'Day TL, Jiang Z, Zheng H, Watchko JF, Clemens PR. Full-length dystrophin gene transfer to the mdx mouse in utero. Gene Ther 2008; 15:531-6. [PMID: 18273052 DOI: 10.1038/gt.2008.8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In utero gene therapy for genetic diseases, such as muscular dystrophies, offers potential advantages over postnatal treatment including vector delivery at the earliest point in the disease and treatment prior to full maturation of the immune system. This study examines in utero gene delivery of full-length murine dystrophin to the murine mdx model for Duchenne muscular dystrophy using a high-capacity adenoviral vector. We examined dystrophin expression, spread of vector, morphology and specific force production of the tibialis anterior muscle 9 weeks after intramuscular in utero injection. Recombinant dystrophin was expressed in the hindlimb muscles, with the majority of animals having expression in two muscles of the injected hindlimb. The dystrophin-glycoprotein complex was restored in those muscle fibers expressing recombinant dystrophin. Analysis of the percentage of dystrophin-expressing muscle fibers with centrally placed nuclei revealed effective protection from cycles of degeneration and regeneration normally seen in muscle fibers lacking dystrophin. However, due to low levels of muscle gene transfer, further advances in the efficiency of adenoviral vector-mediated gene delivery would be required for clinical applications of in utero gene therapy for primary myopathies such as Duchenne muscular dystrophy.
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239
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De Beer M, Cai L, Ji A, De Beer F, Vander Westhuyzen D. PO4-105 SAA BLOCKS MODIFIED LDL UPTAKE AND PROMOTES CELLULAR CHOLESTEROL EFFLUX IN A CD36-SPECIFIC MANNER. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71115-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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240
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Hsi WC, Hallil A, Cai L, Wang L. TH-C-M100E-10: A Correction Method for the MOSFET Energy Dependence Response to Therapeutic Proton Beams. Med Phys 2007. [DOI: 10.1118/1.2761678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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241
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Mu LN, Cao W, Zhang ZF, Yu SZ, Jiang QW, You NC, Lu QY, Zhou XF, Ding BG, Chang J, Chen CW, Wei GR, Cai L. Polymorphisms of 5,10-methylenetetralydrofolate reductase (MTHFR), fruit and vegetable intake, and the risk of stomach cancer. Biomarkers 2007; 12:61-75. [PMID: 17438654 DOI: 10.1080/13547500600945101] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Stomach cancer is a serious public health problem in China. 5,10-Methylenetetralydrofolate reductase (MTHFR) may be involved in both DNA methylation and DNA synthesis. Folate deficiency is associated with cancer risk that may be modulated by a genetic variation in the MTHFR gene in folate metabolism. The main goal of this study was to evaluate the association between polymorphisms of the MTHFR gene and the risk of stomach cancer. This study also explored the modification effects of fruit and vegetable intake (one of the main constituents is folate) on the risk of this disease. A population-based case-control study was conducted in Taixing, China, consisting of 206 newly diagnosed cases with primary stomach cancer and 415 healthy population controls. Polymorphisms of MTHFR C677T and A1298C were assayed by polymerase chain reaction-restricted fragment length polymorphism (PCR-RFLP) techniques. The data were analysed using the logistic regression model. No obvious association between the MTHFR A1298C polymorphism and the risk of stomach cancer was observed in this study. The frequencies of 677 C/C, C/T, and T/T were 34.5, 50.9, and 14.6%, respectively, in controls. The frequency of the MTHFR 677 wild homozygotic genotype was 25.8% in cases, which was lower than that in controls (34.5%). The adjusted odds ratio (OR) for the MTHFR 677 any T genotype was 2.05 (95% confidence interval (CI), 1.26-3.34) when compared with the C/C genotype. In the low fruit and vegetable intake group an increasing trend was observed with the T allele exposure, p = 0.0056. The adjusted ORs were 1.68 (95% CI = 0.86-3.29) for the C/T genotype and 3.58 (95% CI = 1.46-8.75) for the T/T genotype, respectively. The MTHFR 677 any T genotype was associated with an increased risk of primary stomach cancer among the Chinese population. Folate deficiency might modify the MTHFR gene polymorphism and influence the risk of stomach cancer.
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242
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Wang X, Zhu J, Chen W, Cai L. Influence of micro-patterned laser surface texturing on the tribological performance. INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS IN TECHNOLOGY 2007. [DOI: 10.1504/ijcat.2007.015245] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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243
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Yang YC, Lu ML, Rao JY, Wallerand H, Cai L, Cao W, Pantuck A, Dalbagni G, Reuter V, Figlin RA, Belldegrun A, Cordon-Cardo C, Zhang ZF. Joint association of polymorphism of the FGFR4 gene and mutation TP53 gene with bladder cancer prognosis. Br J Cancer 2006; 95:1455-8. [PMID: 17088904 PMCID: PMC2360734 DOI: 10.1038/sj.bjc.6603456] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The impact of the fibroblast growth factor receptor 4 (FGFR4) Gly388Arg polymorphism on bladder cancer is unknown. We found no clear correlations between the FGFR4 genotype and risk of bladder cancer or pathological parameters. Neither the polymorphism nor TP53 mutation status was an independent predictor of prognosis, but they might act jointly on the disease-specific survival of patients.
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244
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Andratschke N, Schnaiter A, Cai L, Weber W, Schwaiger M, Molls M, Nieder C. 2694. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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245
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Zhou YH, Zheng QC, Li ZS, Zhang Y, Sun M, Sun CC, Si D, Cai L, Guo Y, Zhou H. On the human CYP2C9*13 variant activity reduction: a molecular dynamics simulation and docking study. Biochimie 2006; 88:1457-65. [PMID: 16740353 DOI: 10.1016/j.biochi.2006.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Accepted: 05/01/2006] [Indexed: 11/17/2022]
Abstract
Cytochrome P450 2C9 (CYP2C9) plays a key role in the metabolism of clinical drugs. CYP2C9 is a genetically polymorphic enzyme and some of its allelic variants have less activity compared to the wild-type form. Drugs with a narrow therapeutic index may cause serious toxicity to the individuals who carry such allele. CYP2C9*13, firstly identified by some of the present authors in a Chinese poor metabolizer of lornoxicam, is characterized by mutation encoding Leu90Pro substitution. Kinetic experiments show that CYP2C9*13 has less catalytic activity in elimination of diclofenac and lornoxicam in vitro. In order to explore the structure-activity relationship of CYP2C9*13, the three-dimensional structure models of the substrate-free CYP2C9*1 and its variant CYP2C9*13 are constructed on the basis of the X-ray crystal structure of human CYP2C9*1 (PDB code 1R9O) by molecular dynamics simulations. The structure change caused by Leu90Pro replacement is revealed and used to explain the dramatic decrease of the enzymatic activity in clearance of the two CYP2C9 substrates: diclofenac and lornoxicam. The trans configuration of the bond between Pro90 and Asp89 in CYP2C9*13 is firstly identified. The backbone of residues 106-108 in CYP2C9*13 turns over and their side chains block the entrance for substrates accessing so that the entrance of *13 shrinks greatly than that in the wild-type, which is believed to be the dominant mechanism of the catalytic activity reduction. Consequent docking study which is consistent with the results of the kinetic experiments by Guo et al. identifies the most important residues for enzyme-substrate complexes.
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246
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Neyen C, Plüddemann A, Thomas B, Akoulitchev A, Cai L, Van Der Westhuyzen D, Sim R, Gordon S. Th-P15:97 Identification of apolipoprotein A-I as A plasma ligand for macrophage scavenger receptor A. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)82057-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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247
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Schnaiter A, Cai L, Andratschke N, Schill S, Weber W, Molls M, Nieder C. A Model of Experimental Kidney Irradiation for Screening of Response Modifiers: Evaluation of Insulin-like Growth Factor-1 (IGF-1) and Erythropoietin (EPO). Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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248
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Cai L, Weber W, Andratschke N, Schill S, Molls M, Nieder C. Does a p53 Inhibitor Protect Mice Against the Toxicity of High-Dose Abdominal Radiotherapy? Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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249
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You NC, Mu LN, McAfee T, Yang B, Cao W, Yu SZ, Jiang QW, Zhou XF, Ding BG, Wang RH, Cai L, Zhang ZF. 050-S: Environmental Tobacco Smoking and Smoking-Related Susceptibility Genes for the Risk of Esophageal Cancer. Am J Epidemiol 2005. [DOI: 10.1093/aje/161.supplement_1.s13a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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250
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Nieder C, Cai L, Weber WA, Schill S, Astner S, Andratschke NH, Molls M. Insulin-like growth factor-1 for amelioration and prevention of radiation-induced kidney dysfunction. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.9552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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