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Rainey D, Berriochoa J, Korpak A, Zeng J, Jones R, Patel S. Treatment of Resectable Intrathoracic Sarcomas: A Single Institution Experience Over 20 Years. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cardoso WB, Zeng J, Avelar AT, Bazeia D, Malomed BA. Bright solitons from the nonpolynomial Schrödinger equation with inhomogeneous defocusing nonlinearities. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2013; 88:025201. [PMID: 24032974 DOI: 10.1103/physreve.88.025201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Indexed: 06/02/2023]
Abstract
Extending the recent work on models with spatially nonuniform nonlinearities, we study bright solitons generated by the nonpolynomial self-defocusing (SDF) nonlinearity in the framework of the one-dimensional (1D) Muñoz-Mateo-Delgado (MM-D) equation (the 1D reduction of the Gross-Pitaevskii equation with the SDF nonlinearity), with the local strength of the nonlinearity growing at |x|→∞ faster than |x|. We produce numerical solutions and analytical ones, obtained by means of the Thomas-Fermi approximation, for nodeless ground states and for excited modes with one, two, three and four nodes, in two versions of the model, with steep (exponential) and mild (algebraic) nonlinear-modulation profiles. In both cases, the ground states and the single-node ones are completely stable, while the stability of the higher-order modes depends on their norm (in the case of the algebraic modulation, they are fully unstable). Unstable states spontaneously evolve into their stable lower-order counterparts.
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Xie Q, Kang H, Sparkes DL, Tao S, Fan XM, Xu L, Fan X, Sha L, Zhang H, Wang Y, Zeng J, Zhou Y. Mitotic and meiotic behavior of rye chromosomes in wheat - Psathyrostachys huashanica amphiploid x triticale progeny. GENETICS AND MOLECULAR RESEARCH 2013; 12:2537-48. [PMID: 23315875 DOI: 10.4238/2013.january.4.16] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The dynamics of rye chromosomes during mitosis and meiosis was analyzed in a subset comprising 33 F3 lines from the cross of wheat, Psathyrostachys huashanica amphiploid (AABBDDNsNs) and hexaploid triticale (AABBRR), as visualized by genomic in situ hybridization. The results indicated that 31 of the total lines contained 4-14 rye chromosomes. Twenty-eight combinations had more rye chromosomes than the F1 hybrids, suggesting the occurrence of spontaneous quantitative increment. No P. huashanica chromosomes were detected in all of the combinations tested. Mitotic analysis showed that rye chromosomes progressed normally with the wheat counterparts without loss. However, abnormal meiosis was found in almost all lines. Similar progression between wheat and rye genomes appeared from interphase to metaphase I. It was at anaphase I that many rye univalents lagged behind those of wheat, followed by equational division. This resulted in the formation of chromosomal segments and micronuclei at telophase I or II. Micronuclei could also be generated from the immobilized univalents in the periphery of cells. Synapsis and translocations between wheat and rye genomes, chromosome bridges, and unreduced gametes were detected. Therefore, it is proposed that rye chromosome elimination may involve chromatid lagging, fragmentation and micronucleation, or the immobilization of certain univalents during meiosis instead of mitosis in the relatively advanced generations. This mechanism, together with spontaneous incremental increase of rye chromosome number, permitted the generation of various germplasms for wheat improvement.
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Liu H, Xu L, Zeng J. Role of corrosion products in biofilms in microbiologically induced corrosion of carbon steel. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/000705900101501155] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Zeng J, Xiong Y, Li G, Liu M, He T, Tang Y, Chen Y, Cai L, Jiang R, Tao J. MiR-21 is Overexpressed in Response to High Glucose and Protects Endothelial Cells from Apoptosis. Exp Clin Endocrinol Diabetes 2013; 121:425-30. [PMID: 23771797 DOI: 10.1055/s-0033-1345169] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bowen SR, Nyflot MJ, Zeng J, Sandison GA, Patel SA, Kinahan PE. TU-E-141-09: Impact of Attenuation Correction Mode On 4D PET/CT for Target Definition in Lung Cancer Patients. Med Phys 2013. [DOI: 10.1118/1.4815437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Zeng J, Nyflot M, Sponseller P, Kusano A, Novak A, Jordan L, Carlson J, Ermoian R, Kane G, Ford E. SU-E-T-230: Patient Safety Improvement Related to Changes in Ongoing Radiation Treatment Plan Identified with Near-Miss Incidents Reporting. Med Phys 2013. [DOI: 10.1118/1.4814665] [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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183
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Li S, Liu ZC, Yin SJ, Chen YT, Yu HL, Zeng J, Zhang Q, Zhu F. Human endogenous retrovirus W family envelope gene activates the small conductance Ca2+-activated K+ channel in human neuroblastoma cells through CREB. Neuroscience 2013; 247:164-74. [PMID: 23727510 DOI: 10.1016/j.neuroscience.2013.05.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/17/2013] [Accepted: 05/17/2013] [Indexed: 11/25/2022]
Abstract
Numerous studies have shown that human endogenous retrovirus W family (HERV-W) envelope gene (env) is related to various diseases but the underlying mechanism has remained poorly understood. Our previous study showed that there was abnormal expression of HERV-W env in sera of patients with schizophrenia. In this paper, we reported that overexpression of the HERV-W env elevated the levels of small conductance Ca(2+)-activated K(+) channel protein 3 (SK3) in human neuroblastoma cells. Using a luciferase reporter system and RNA interference method, we found that functional cAMP response element site was required for the expression of SK3 triggered by HERV-W env. In addition, it was also found that the SK3 channel was activated by HERV-W env. Further study indicated that cAMP response element-binding protein (CREB) was required for the activation of the SK3 channel. Thus, a novel signaling mechanism of how HERV-W env influences neuronal activity and contributes to mental illnesses such as schizophrenia was proposed.
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Zeng J, Kim D, Li KW, Sharp K, Steward O, Zaucke F, Luo ZD. Thrombospondin-4 contributes to spinal cord injury-induced changes in nociception. Eur J Pain 2013; 17:1458-64. [PMID: 23649982 DOI: 10.1002/j.1532-2149.2013.00326.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2013] [Indexed: 11/06/2022]
Abstract
BACKGROUND Our previous data have indicated that nerve injury-induced up-regulation of thrombospondin-4 (TSP4) proteins in dorsal spinal cord plays a causal role in neuropathic pain state development in a spinal nerve ligation model. To investigate whether TSP4 proteins also contribute to the development of centrally mediated changes in nociception after spinal cord injury (SCI), we investigated whether SCI induced TSP4 dysregulation, and if so, whether this change correlated with changes in nociception in a T9 spinal cord contusion injury model. METHODS Behavioural sensitivity to mechanical, thermal stimuli and locomotor function recovery were tested blindly in SCI or sham rats post-injury. Intrathecal antisense or mismatch control oligodeoxynucleotides were used to treat SCI rats with nociceptive hyperreflexia, and Western blots were used to measure TSP4 protein levels in dorsal spinal cord samples. RESULTS SCI induced below-level hindpaw hypersensitivity to stimuli. TSP4 protein levels are up-regulated in dorsal spinal cord of SCI rats with nociceptive hyperreflexia, but not in SCI rats without nociceptive hyperreflexia. There was no significant difference in motor function recovery post-injury between SCI rats with or without nociceptive hyperreflexia. Intrathecal treatment with TSP4 antisense, but not mismatch control, oligodeoxynucleotides led to reversal of injury-induced TSP4 up-regulation and nociceptive hyperreflexia in SCI rats. CONCLUSIONS SCI leads to TSP4 up-regulation in lumbar spinal cord that may play a critical role in mediating centrally mediated behavioural hypersensitivity. Blocking this pathway may be helpful in management of SCI-induced changes in nociception.
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Zeng J, Francia C, Gerbaldi C, Baglio V, Specchia S, Aricò A, Spinelli P. Hybrid ordered mesoporous carbons doped with tungsten trioxide as supports for Pt electrocatalysts for methanol oxidation reaction. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.01.139] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Feng G, Li L, Liu H, Song Y, Huang F, Tu C, Shen B, Gong Q, Li T, Liu L, Zeng J, Kong Q, Yi M, Gupte M, Ma PX, Pei F. Hypoxia differentially regulates human nucleus pulposus and annulus fibrosus cell extracellular matrix production in 3D scaffolds. Osteoarthritis Cartilage 2013; 21:582-8. [PMID: 23313531 DOI: 10.1016/j.joca.2013.01.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 12/21/2012] [Accepted: 01/01/2013] [Indexed: 02/05/2023]
Abstract
OBJECTIVE We hypothesize that intervertebral disc (IVD) cells from distinct region respond differently to oxygen environment, and that IVD cells from patients with disc degeneration can benefit from hypoxia condition. Therefore, we aimed to determine the transcriptional response and extracellular matrix (ECM) production of nucleus pulposus (NP) and annulus fibrosus (AF) cells to different oxygen tension. METHOD Human NP and AF from degenerated IVD were seeded in 3D scaffolds and subjected to varying oxygen tension (2% and 20%) for 3 weeks. Changes in ECM were evaluated using quantitative real-time reverse transcriptase polymerase chain reaction, histological and immunohistological analyses. RESULTS Hypoxia significantly enhances NP cells phenotype, which resulted in greater production of sulfated glycosaminoglycan (GAG) and collagen type II within the constructs and the cells expressed higher levels of genes encoding NP ECM. A significantly stronger fluorescent signal for hypoxia-inducible factor (HIF-1α) as also found in the NP cells under the hypoxic than normoxic condition. However, there was little effect of hypoxia on the AF cells. CONCLUSIONS The NP and AF cells respond differently to hypoxia condition on the 3D scaffold, and hypoxia could enhance NP phenotype. When used in concert with appropriate scaffold material, human NP cells from degenerated disc could be regenerated for tissue engineering application.
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Ding M, Zeng J, Sroussi H, Yu J, Xu J, Cheng X, Fan Y. Interactions between Golli-MBP and Th1/Th2 cytokines in patients with oral lichen planus. Oral Dis 2013; 20:205-11. [DOI: 10.1111/odi.12090] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 02/06/2013] [Accepted: 02/10/2013] [Indexed: 02/06/2023]
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Zeng J, Cao W, Fedak G, Sun S, McCallum B, Fetch T, Xue A, Zhou Y. Molecular cytological characterization of two novel durum--Thinopyrum intermedium partial amphiploids with resistance to leaf rust, stem rust and Fusarium head blight. Hereditas 2013; 150:10-6. [PMID: 23489247 DOI: 10.1111/j.1601-5223.2012.02262.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Thinopyrum intermedium, a wild relative of wheat, is an excellent source of disease resistance. Two novel partial amphiploids, 08-47-50 and 08-53-55 (2n = 6x = 42), were developed from wide crosses between durum wheat and Th. intermedium. Meiotic analysis showed that pollen mother cells of the two partial amphiploids formed an average 20.49 bivalents for 08-47-50 and 20.67 bivalents for 08-53-55, indicating that they are basically cytologically stable. GISH analysis revealed that the two partial amphiploids carried different chromosome compositions. 08-47-50 had fourteen chromosomes from Th. intermedium and its alien chromosomes included six St-, four E(e) - and four E(e)-St translocated chromosomes, whereas 08-53-55 had four St- and ten E(e)-St translocated chromosomes. Fungal disease evaluation indicated that both partial amphiploids had a high level of resistance to FHB, leaf rust and stem rust race Ug99. These two novel partial amphiploids with multiple disease resistance could be used as a new source of multiple disease resistance in bread wheat and durum wheat breeding programs.
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Zeng J, Cao W, Hucl P, Yang Y, Xue A, Chi D, Fedak G. Molecular cytogenetic analysis of wheat – Elymus repens introgression lines with resistance to Fusarium head blight. Genome 2013; 56:75-82. [DOI: 10.1139/gen-2012-0130] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Elymus repens (L.) Gould (2n = 6x = 42, StStStStHH) is a hexaploid perennial wheatgrass species from the tribe Triticeae, distantly related to bread wheat Triticum aestivum L. (2n = 6x = 42, AABBDD). As a potential source of resistance to Fusarium head blight (FHB), E. repens was crossed to common wheat to transfer resistance genes. The progeny were advanced to homozygosity by single seed descent. A total of eight BC1F9 progeny lines were selected and characterized in this study. The chromosome numbers of these derived lines ranged from 42 to 56, including lines with 44, 52, and 54 chromosomes. All of the lines were cytologically stable in terms of meiotic chromosome behavior. The univalent frequency in the lines varied between 0.34 and 2.36 per cell. Similarly, the multivalent frequency did not exceed 1% in any of the lines. GISH analysis revealed that the number of intact wheat chromosomes in the various lines varied between 40 and 44. Numerous translocated chromosomes were detected in all lines. The translocations involved chromosomal segments from wheat, and the St and H genomes of E. repens. Furthermore, trigenomic translocated chromosomes were detected in some of the lines. The introgression into wheat chromosomes included not only terminal types but also interstitial segments. The Fusarium head blight resistance of the eight lines, following point inoculation, varied from 5.65% infected florets to 11.46% compared with the check cultivars T. aestivum ‘Roblin’ and T. aestivum ‘Crocus’ at 100% and 85%, respectively.
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Gandhi N, Wild A, Aziz K, Chettiar S, Gajula R, Zeng J, Herman J, Deweese T, Hales R, Tran P. Novel Hsp90 Inhibitor NVP-AUY922 Radiosensitizes Prostate Cancer Cells. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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191
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Tran PT, Hales RK, Zeng J, Aziz K, Salih T, Gajula RP, Chettiar S, Gandhi N, Wild AT, Kumar R, Herman JM, Song DY, DeWeese TL. Tissue biomarkers for prostate cancer radiation therapy. Curr Mol Med 2012; 12:772-87. [PMID: 22292443 PMCID: PMC3412203 DOI: 10.2174/156652412800792589] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 11/10/2011] [Accepted: 12/20/2011] [Indexed: 12/12/2022]
Abstract
Prostate cancer is the most common cancer and second leading cause of cancer deaths among men in the United States. Most men have localized disease diagnosed following an elevated serum prostate specific antigen test for cancer screening purposes. Standard treatment options consist of surgery or definitive radiation therapy directed by clinical factors that are organized into risk stratification groups. Current clinical risk stratification systems are still insufficient to differentiate lethal from indolent disease. Similarly, a subset of men in poor risk groups need to be identified for more aggressive treatment and enrollment into clinical trials. Furthermore, these clinical tools are very limited in revealing information about the biologic pathways driving these different disease phenotypes and do not offer insights for novel treatments which are needed in men with poor-risk disease. We believe molecular biomarkers may serve to bridge these inadequacies of traditional clinical factors opening the door for personalized treatment approaches that would allow tailoring of treatment options to maximize therapeutic outcome. We review the current state of prognostic and predictive tissue-based molecular biomarkers which can be used to direct localized prostate cancer treatment decisions, specifically those implicated with definitive and salvage radiation therapy.
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Zeng J, Price GW, Arnold P. Evaluation of an aerobic composting process for the management of Specified Risk Materials (SRM). JOURNAL OF HAZARDOUS MATERIALS 2012; 219-220:260-266. [PMID: 22525479 DOI: 10.1016/j.jhazmat.2012.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 03/14/2012] [Accepted: 04/02/2012] [Indexed: 05/31/2023]
Abstract
In Nova Scotia (NS), approximately 2700 tonnes of Specified Risk Materials (SRM) are produced annually. SRM disposal is a serious concern for abattoirs and the beef industry. Composting offers a low risk and simple means to transform raw SRM into a more stable and easily managed material. In this project, wheat straw and sawdust were used to compost with SRM on a pilot scale. The study evaluated changes over time in total carbon, total nitrogen, pH, temperature, moisture content and electrical conductivity. Compost temperatures in all treatments met the Canadian Council of Ministers of the Environment (CCME) guidelines for pathogen kill. The compost maturity tests showed that the evolution of CO(2)-C in all the final compost products was less than 1 mg g(-1) organic matter day(-1). Wheat straw performed well as a composting feedstock for raw SRM as sawdust. While the wheat straw has advantages including greater availability, lower cost and easily decomposable carbon compounds more management is required to maintain adequate compost temperatures. The influences of seasonal variations due to temperate climatic conditions on SRM composting were also studied with wheat straw. The results suggest no significant differences in composting effectiveness between the two seasons.
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Huang Y, Xie W, Zeng J, Law F, Farrar J, Ba-Thein W. Knowledge and practice of healthcare-associated infections among Chinese medical students. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Zeng J, See A, Phallen J, Belcaid Z, Durham N, Meyer C, Pradilla G, Ford E, Wong J, Hammers H, Tyler B, Brem H, Tran P, Pardoll D, Lim M. 90 COMBINING ANTI-PD-1 IMMUNOTHERAPY WITH STEREOTACTIC RADIOSURGERY IN A MOUSE ORTHOTOPIC GLIOBLASTOMA MODEL. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70066-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Tran P, Hales R, Zeng J, Aziz K, Armour M, Aftab B, Chettiar S, Gajula R, Salih T, Rudin C, Gandhi N, Wong J. 34 HEDGEHOG PATHWAY INHIBITION AND RADIOTHERAPY FOR NON-SMALL CELL LUNG CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70021-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Zeng J, Li S, Sun X, Chen X. Application of Polyelectrolyte-Enhanced Ultrafiltration for Rhenium Recovery from Aqueous Solutions. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201100454] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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197
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Li D, Wang Q, Liu C, Duan H, Zeng X, Zhang B, Li X, Zhao J, Tang S, Li Z, Xing X, Yang P, Chen L, Zeng J, Zhu X, Zhang S, Zhang Z, Ma L, He Z, Wang E, Xiao Y, Zheng Y, Chen W. Aberrant expression of miR-638 contributes to benzo(a)pyrene-induced human cell transformation. Toxicol Sci 2011; 125:382-91. [PMID: 22048643 DOI: 10.1093/toxsci/kfr299] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Identification of aberrant microRNA (miRNA) expression during chemical carcinogen-induced cell transformation will lead to a better understanding of the substantial role of miRNAs in cancer development. To explore whether aberrant miRNAs expression can be used as biomarkers of chemical exposure in risk assessment of chemical carcinogenesis, we analyzed miRNA expression profiles of human bronchial epithelial cells expressing an oncogenic allele of H-Ras (HBER) at different stages of transformation induced by benzo(a)pyrene (BaP) by miRNA array. It revealed 12 miRNAs differentially expressed in HBER cells at both pretransformed and transformed stages. Differentially expressed miRNAs were confirmed in transformed cells and examined in 50 pairs of primary human non-small-cell lung cancer (NSCLC) tissues using real-time PCR. Among these miRNAs, downregulation of miR-638 was found in 68% (34/50) of NSCLC tissues. However, the expression of miR-638 in HBER cells increased upon treatment of BaP in a dose-dependent manner. The expression of miR-638 was also examined in peripheral lymphocytes from 86 polycyclic aromatic hydrocarbons (PAHs)-exposed (PE) workers. We found that the average expression level of miR-638 in peripheral lymphocytes from 86 PE workers increased by 72% compared with control group. The levels of miR-638 were correlated with the concentration of urinary 1-hydroxypyrene (1-OHP) and external levels of PAHs. Overexpression of miR-638 aggravated cell DNA damage induced by BaP, which might be mediated by suppression of breast cancer 1 (BRCA1), one of the target genes of miR-638. In summary, we suggest that miR-638 is involved in the BaP-induced carcinogenesis by targeting BRCA1.
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Hickey MJ, Malone CK, Erickson KL, Gerschenson LE, Lin AH, Inagaki A, Hiraoka K, Kasahara N, Mueller B, Kruse CA, Kong S, Tyler B, Zhou J, Carter BS, Brem H, Junghans RP, Sampath P, Lai RK, Recht LD, Reardon DA, Paleologos N, Groves M, Rosenfeld MR, Davis T, Green J, Heimberger A, Sampson J, Hashimoto N, Tsuboi A, Chiba Y, Kijima N, Oka Y, Kinoshita M, Kagawa N, Fujimoto Y, Sugiyama H, Yoshimine T, Birks SM, Burnet M, Pilkington GJ, Yu JS, Wheeler CJ, Rudnick J, Mazer M, Wang HQ, Nuno MA, Richardson JE, Fan X, Ji J, Chu RM, Bender JG, Hawkins EW, Black KL, Phuphanich S, Pollack IF, Jakacki RI, Butterfield LH, Okada H, Hunt MA, Pluhar GE, Andersen BM, Gallardo JL, Seiler CO, SantaCruz KS, Ohlfest JR, Bauer DF, Lamb LS, Harmon DK, Zheng X, Romeo AK, Gillespie GY, Parker JN, Markert JM, Jacobs VL, Landry RP, De Leo JA, Bromberg JE, Doorduijn J, Baars JW, van Imhoff GW, Enting R, van den Bent MJ, Murphy KA, Bedi J, Epstein A, Ohlfest JR, Olin M, Andersen B, Swier L, Ohlfest J, Litterman AJ, Zellmer DM, Ohlfest JR, Chiocca EA, Aguilar LK, Aguilar-Cordova E, Manzanera AG, Harney KR, Portnow J, Badie B, Lesniak M, Bell S, Ray-Chaudhuri A, Kaur B, Hardcastle J, Cavaliere R, McGregor J, Lo S, Chakarvarti A, Grecula J, Newton H, Trask TW, Baskin DS, New PZ, Zeng J, See AP, Phallen J, Belcaid Z, Durham N, Meyer C, Albesiano E, Pradilla G, Ford E, Hammers H, Tyler B, Brem H, Tran PT, Pardoll D, Drake CG, Lim M, Ghazi A, Ashoori A, Hanley P, Salsman V, Schaffer DR, Grada Z, Kew Y, Powell SZ, Grossman R, Scheurer ME, Leen AM, Rooney CM, Bollard CM, Heslop HE, Gottschalk S, Ahmed N, Hu J, Patil C, Nuno M, Wheeler C, Rudnick J, Phuphanich S, Mazer M, Wang HQ, Chu R, Black K, Yu J, Marabelle A, Kohrt H, Brody J, Luong R, Tse V, Levy R, Li YM, Jun H, Shahryar M, Daniel VA, Walter HA, Thaipisuttikul I, Avila E, Mitchell DA, Archer GE, Friedman HS, Herndon JE, Bigner DD, Sampson JH, Johnson LA, Archer GE, Nair SK, Schmittling R, Reap E, Sampson JH, Mitchell DA, Li YM, Shahryar M, Jun H, Daniel VA, Walter HA, Knisely JP, Kluger H, Flanigan J, Sznol M, Yu JB, Chiang VL, Prins RM, Kim W, Soto H, Lisiero DN, Lisiero DN, Liau LM. IMMUNOTHERAPY. Neuro Oncol 2011; 13:iii34-iii40. [PMCID: PMC3199174 DOI: 10.1093/neuonc/nor151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
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Dziurzynski K, Wei J, Qiao W, Hatiboglu MA, Kong LY, Wu A, Wang Y, Cahill DP, Levine NB, Prabhu SS, Rao G, Sawaya R, Heimberger AB, de Vrij J, Kwappenberg KMC, Maas SLN, Kleijn A, Lamfers ML, Dirven CMF, Schilham MW, Broekman MLD, Garcia-Velasco A, del Barco S, Alvarez R, Fuentes R, Marruecos J, Hernando O, Rubio C, Menendez J, Brunet J, Hidalgo M, Jung TY, Kim YH, Jung S, Jang WY, Moon KS, Kim IY, Lee MC, Lee JJ, Kohanbash G, McKaveney K, Sakaki M, Mintz A, Ohlfest J, Bondy M, Fujita M, Okada H, Liu Y, Ohno M, Okada H, Raychaudhuri B, Vogelbaum MA, Sabin KZ, Lebert D, Thibado V, Rovin R, Lawrence J, Winn R, Kleijn A, Kloezeman J, Treffers-Westerlaken E, Fulci G, Leenstra S, Dirven C, Debets R, Lamfers M, Belcaid Z, Phallen JA, Zeng J, See AP, Albesiano E, Durham NM, Tyler B, Brem H, Pardoll DM, Drake C, Lim M, Sippel TR, White J, Russel R, Waziri A, Kohanbash G, Ishikawa E, Fujita M, Ohno M, Liu Y, Sakaki M, Ikeura M, Scheurer M, Bondy M, Okada H, Yi HQ, Duan YL, Yang CQ, Seo KS, Bohach G, Fortunato E, Luo MH. IMMUNOLOGY RESEARCH. Neuro Oncol 2011. [DOI: 10.1093/neuonc/nor150] [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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Yang P, Ma J, Zhang B, Duan H, He Z, Zeng J, Zeng X, Li D, Wang Q, Xiao Y, Liu C, Xiao Q, Chen L, Zhu X, Xing X, Li Z, Zhang S, Zhang Z, Ma L, Wang E, Zhuang Z, Zheng Y, Chen W. CpG site-specific hypermethylation of p16INK4α in peripheral blood lymphocytes of PAH-exposed workers. Cancer Epidemiol Biomarkers Prev 2011; 21:182-90. [PMID: 22028397 DOI: 10.1158/1055-9965.epi-11-0784] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Sufficient epidemiologic evidence shows an etiologic link between polycyclic aromatic hydrocarbons (PAH) exposure and lung cancer risk. While the genetic modifications have been found in PAH-exposed population, it is unclear whether gene-specific methylation involves in the process of PAH-associated biologic consequence. METHODS Sixty-nine PAH-exposed workers and 59 control subjects were recruited. Using bisulfite sequencing, we examined the methylation status of p16(INK4α) promoter in peripheral blood lymphocytes (PBL) from PAH-exposed workers and in benzo(a)pyrene (BaP)-transformed human bronchial epithelial (HBE) cells. The relationships between p16(INK4α) methylation and the level of urinary 1-hydroxypyrene (1-OHP) or the frequency of cytokinesis block micronucleus (CBMN) were analyzed. RESULTS Compared with the control group, PAH-exposed workers exhibited higher levels of urinary 1-OHP (10.62 vs. 2.52 μg/L), p16(INK4α) methylation (7.95% vs. 1.14% for 22 "hot" CpG sites), and CBMN (7.28% vs. 2.92%) in PBLs. p16(INK4α) hypermethylation in PAH-exposed workers exhibited CpG site specificity. Among the 35 CpG sites we analyzed, 22 were significantly hypermethylated. These 22 hypermethylated CpG sites were positively correlated to levels of urinary 1-OHP and CBMN in PBLs. Moreover, the hypermethylation and suppression of p16 expression was also found in BaP-transformed HBER cells. CONCLUSION PAH exposure induced CpG site-specific hypermethylation of p16(INK4α) gene. The degree of p16(INK4α) methylation was associated with the levels of DNA damage and internal exposure. IMPACT p16(INK4α) hypermethylation might be an essential biomarker for the exposure to PAHs and for early diagnosis of cancer.
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