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Abstract
AIM The adenoma detection rate is an important quality indicator for colonoscopy, but recently, serrated polyps of the large bowel have been recognized as important premalignant lesions. As they are often more difficult to see than adenomas, the detection rate of serrated polyps is set to become a more stringent indicator of quality in colonoscopy than adenoma detection rate. Here we aim to provide preliminary data on serrated polyp detection. METHOD This is a retrospective review of prospectively collected data. Colonoscopies were stratified by one of six colorectal surgeons, each of whom had performed more than 1000 colonoscopies. Exams were separated by indication and the number of patients with at least one adenoma or one serrated polyp recorded. Time of withdrawal in normal examinations was noted. RESULTS Eighteen thousand and three colonoscopies were included. Average completion rate was 96.3 ± 1.2%. Mean serrated detection rate for all examinations was 20.6 ± 4.8% and for screening examinations only was 13.9 ± 5.0%. Corresponding means for adenoma detection were 31.5 ± 6.7% and 20.7 ± 4.1%, respectively. Simple regression of overall adenoma detection rate versus overall serrated detection rate was not significant (R = 0.571, P = 0.237), but was significant for screening exams (R = 0.854, P = 0.031). There was a strong relationship between time of withdrawal and serrated detection rate (screening, R = 0.908, P = 0.012; overall, R = 0.956, P = 0.003). CONCLUSION Taking time to withdraw the colonoscope is essential for maximum detection of serrated polyps. The ability to find adenomas does not necessarily correlate with an ability to find serrated polyps.
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Meyer K, Liang J, Krauss D, Chen P, Yan D. Including Radiographic Shrinkage of Head-Neck Tumor in Adaptive Radiation Therapy Process: Is it a Safe Consideration? Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ge YS, Zhou XZ, Liang J, Raeder J, Gilson ML, Donovan E, Angelopoulos V, Runov A. Dipolarization fronts and associated auroral activities: 1. Conjugate observations and perspectives from global MHD simulations. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2012ja017676] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang R, Hsu T, Brock W, Liang J. DNA fragility and repair capability are separate genetic phenotypes - studies on in-situ nick translation and chromosome breakage. Int J Oncol 2012; 6:51-4. [PMID: 21556500 DOI: 10.3892/ijo.6.1.51] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Three separate experiments, designed to minimize the DNA repair process following exposures to mutagens, were performed to determine whether DNA repair capability is the sole factor responsible for differential mutagen sensitivity. These experiments included (i) very short bleomycin pulse treatments (2, 5 and 10 min), (ii) ionizing irradiation and (iii) bleomycin treatment with DNA repair inhibited by ethanol. Three lymphoblastoid cell lines, derived (i) from a patient with ataxia telangiectasia (AT), (ii) a patient with lupus erythematosus and (iii) a normal blood donor, were used as test cells. Mutagen sensitivity was measured either by the frequency of chromatid breaks or by grain counts in in situ nick translation preparations. In all cases, sensitivity rating followed the same pattern: AT>lupus>normal. The results support the notion that mutagen sensitivity may depend on two separate phenotype: intrinsic DNA fragility and repair capability.
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Zhang QT, He M, Zhang XY, Lu Q, Liang J. Canker on Bark of Populus spp. Caused by Cytospora tritici, a New Disease in China. PLANT DISEASE 2012; 96:1578. [PMID: 30727303 DOI: 10.1094/pdis-01-12-0040-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Species of Cytospora Ehrenb. and associated teleomorphs cause dieback and canker on over 85 species of angiosperm and gymnosperm plants throughout the world (2). Cytospora tritici Punith. was first observed on Triticum asetivum in Germany in 1980 but may also affect many hardwoods (3). During a survey of landscape trees in 2007, Populus spp. with cankers were found in Fushun, Baoxing, and Luding counties and Chengdu city in Sichuan Province. In these trees, bark canker pathogens discolored the sapwood. During damp weather, conidia were pushed out and formed orange spore horns. Conidiomatal stromata were immersed in bark, prominent, and 1.53 ± 0.33 mm in diameter (n = 10). Discs were white to grey, circular, oval, and 0.59 ± 0.14 mm in diameter (n = 10), with one ostiole per disc. Ostioles were dark grey. Locules were multi-chambered, chambers irregular. Conidia were lelongate-allantoid shaped, hyaline, aseptate, 5.04 ± 0.65 μm long (n = 50), and 1.22 ± 0.13 μm wide (n = 50). Fragments (5 × 5 mm2) of the junction of diseased and healthy tissues were surface sterilized with 1% NaOCl for 30 s and then rinsed twice in sterile distilled water. The pieces were placed on potato dextrose agar (PDA) plates and incubated at 25°C for 7 days. The obtained isolates were cultured on PDA at 25°C in diffuse fluorescent light for 30 days. Upon isolation, the mycelium grew at a rate of 3 to 5 mm per day at 25°C, forming pale white-to-pure white flat colonies. Conidiomata never formed on PDA. ITS1-5.8S-ITS2 sequences were amplified via PCR from genomic DNA obtained from mycelia using universal primers ITS1 and ITS4 (4). The amplification products showed 100% sequence homology with C. tritici isolate DQ243812 from the GenBank database. The ITS sequences were submitted to GenBank (Accession No. JQ277333 to JQ277336). Pathogenicity was confirmed by inoculating 20 disinfected (70% ethanol) Populus tomentosa cuttings. Cuttings were incubated at 25°C for 30 days. Another two cuttings were treated with water agar as controls. In 18 of the 20 cuttings, the cambium developed a brown color and appeared water soaked 15 days later, whereas controls did not develop any symptoms. C. tritici was reisolated from symptomatic tissues. To our knowledge, this is the first report of C. tritici in China causing canker on Populus spp. Cytospora canker is common in practically all countries where poplar are grown. Canker expansion increases when tree defenses are compromised, usually by seasonal dormancy but also by drought, cold injury of wood, sun scald of bark, flooding of root, hail, freezing, or other stress (1). Future spread of C. tritici to western China is considered highly likely. References: (1) G. C. Adams et al. Stud. Mycol. 52:1, 2005. (2) D. F. Farr and A. Y. Rossman. Fungal Databases. Systematic Mycology and Microbiology Laboratory, ARS, USDA. Retrieved from http://nt.ars-grin.gov/fungaldatabases/ March 25, 2012. (3) E. Punithalingam. Nova Hedwigia 32:585, 1980. (4) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. M. A. Innis et al., eds. Academic Press, San Diego, 1990.
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Proescholdt MA, Merrill MJ, Stoerr EM, Lohmeier A, Brawanski A, Sim H, Hu B, Pineda CA, Yoon SO, Viapiano MS, Rajappa P, Cobb WS, Huang Y, Lyden DC, Bromberg J, Greenfield JP, Li M, Mukasa A, Inda MDM, Zhang J, Chin L, Cavenee W, Furnari F, Zheng PP, van der Weiden M, van der Spek PJ, Vincent AJ, Kros JM, Fathallah-Shaykh HM, Saut O, Lagaert JB, Colin T, Fathallah-Shaykh HM, Araysi L, Tang Z, Duck KA, Ponnuru P, Neely EB, Connor JR, Esencay M, Gonzalez P, Gaziel A, Safraz Y, Mira H, Hernando E, Zagzag D, McDermott RA, Ulasov I, Kaverina N, Gabikian P, Lesniak M, Iranmahboob A, Haber M, Esencay M, Fatterpekar G, Raz E, Placantonakis D, Zagzag D, Eoli M, Rabascio C, Cuppini L, Anghileri E, Pellegatta S, Calleri A, Mancuso P, Porrati P, Bertolini F, Finocchiaro G, Seals DF, Burger KL, Gibo DM, Debinski W, Esencay M, Zagzag D, Tran NL, Tuncali S, Kloss J, Yang Z, Schumacher CA, Diegel C, Ross JT, Williams BO, Eschbacher JM, Loftus JC, Whiteman M, Dombovy-Johnson M, Vangellow A, Liu Y, Carson-Walter E, Walter KA, Liu Y, Carson-Walter E, Walter K, Cortes-Santiago N, Gabrusiewicz K, Liu D, Hossain MB, Gumin J, Fan X, Conrad C, Aldape K, Gilbert M, Raghunathan A, Yung WKA, Fueyo J, Gomez-Manzano C, Bae E, Huang P, Burgett M, Muller-Greven G, Kar N, Gladson CL, Engler JR, Robinson AE, Molinaro A, Phillips JJ, Zadeh G, Burrell K, Hill R, Piao Y, Liang J, Henry V, Holmes L, Sulman E, deGroot JF, Piao Y, Liang J, Henry V, Holmes L, de Groot JF, Rong W, Funato K, Georgala P, Shimizu F, Droms L, Tabar V, Parker JJ, Dionne KR, Massarwa R, Klaassen M, Foreman NK, Niswander L, Canoll P, Kleinschmidt-DeMasters BK, Waziri A. LAB-ANGIOGENESIS AND INVASION. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos219] [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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Liang J, Leung KK, Lam SY, Leung PS. Combined treatment with a dipeptidyl peptidase-IV inhibitor (sitagliptin) and an angiotensin II type 1 receptor blocker (losartan) promotes islet regeneration via enhanced differentiation of pancreatic progenitor cells. Diabetes Obes Metab 2012; 14:842-51. [PMID: 22519909 DOI: 10.1111/j.1463-1326.2012.01612.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM The existence of pancreatic progenitor cells (PPCs) with differentiation capacity in the adult pancreas has rendered that promotion of islet regeneration is feasible. The dipeptidyl peptidase-IV inhibitor sitagliptin and the angiotensin II type 1 receptor (AT(1) receptor) blocker losartan have a common target action in the pancreata. Thus, we evaluated the synergistic/additive effects of these two drugs on the differentiation of islet progenitors. METHODS The acute and chronic effects of sitagliptin and losartan, individually or in combination, on islet regeneration in vivo were investigated by using a streptozotocin-induced type 1 diabetes mouse model. Their effects were also examined on an in vitro PPCs model derived from human foetal pancreas. RESULTS A chronic combination treatment enhanced glucose tolerance in diabetic mice associated with an increased ratio of β cells to islet; an acute combination treatment resulted in a marked increase in the production of neurogenin 3 (NGN3(+)) cells in proximity to CK7(+) ductal cell and an increased presence of insulin(+) /CK7(+) cells. The in vitro study revealed that a combination treatment significantly enhanced mRNA expression of NGN3, NKX6.1 and PDX-1 during PPCs differentiation into human islet-like cell clusters (ICCs). Despite no apparent changes in insulin release, the combined treatment resulted in increasing production of peroxisome proliferator-activated receptor γ (PPARγ) during PPC differentiation. CONCLUSIONS These data indicate that combined sitagliptin-losartan treatment can improve islet function by promoting the differentiation of PPCs into ICCs, perhaps via a mechanism involving PPARγ production, and could thereby, contribute to islet regeneration.
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Wang D, Wang L, Liang J, Liu C. Instrument for layer-by-layer deposition of catalyst layers directly on proton exchange membrane for direct methanol fuel cell. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:095005. [PMID: 23020410 DOI: 10.1063/1.4750976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A catalyst layer (CL) layer-by-layer (LbL) deposition instrument, consisting of an electrohydrodynamic atomization (EHDA) device and a proton exchange membrane (PEM) fixing device, has been developed. It has been used to deposit anode CL on Nafion membrane under different working distances of 4, 5, and 6 mm. The incorporation of EHDA LbL deposition allowed the generation of the CLs with different structures, where the higher working distance produced more porous CL structure. A catalyst-coated membrane (CCM) was also produced using this EHDA LbL deposition and PEM fixing device. It was observed that the catalyst has been uniformly coated on the Nafion membrane and the CCM presents an uniform surface feature. The performance of a single direct methanol fuel cell (DMFC) assembled with the deposited CCM at different working temperatures was analysed. The cell performance increased when the temperature rose. This instrument has the potential of being developed into a powerful device for controlling the deposition of CL of desired structures directly on PEM for DMFCs.
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384
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Bai FH, Wang NJ, Wang J, Yang L, Zhang FM, Yin F, Liang J, Wu KC, Fan DM. Screening and identification of peritoneal metastasis-related genes of gastric adenocarcinoma using a cDNA microarray. GENETICS AND MOLECULAR RESEARCH 2012; 11:1682-9. [PMID: 22782588 DOI: 10.4238/2012.june.25.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
With the aim of identifying peritoneal metastasis-related genes in gastric cancer, we performed a broad analysis of differential gene expression between the parental cell line GC9811 and its highly metastatic peritoneal counterpart, cell line GC9811-P. Two fluorescent cDNA probes, labeled with Cy3 and Cy5 dyes, were prepared from GC9811 and GC9811-P mRNA samples by the reverse transcription method. The two color probes were then mixed and hybridized to a cDNA chip constructed with double-dots from 11,901 human genes; this was scanned at two wavelengths. The experiment was repeated twice. In GC9811-P cells, 218 genes were upregulated and 30 genes were downregulated compared with the parental cell lines. Some selected genes were confirmed by RT-PCR and Western blot; we found that S100A4 and CTNNB1 were upregulated and PTEN was downregulated in GC9811-P cells. Identification of these differentially expressed genes could contribute to disclose the molecular mechanisms involved and provide new targets for therapeutic intervention to avoid peritoneal dissemination of gastric adenocarcinoma.
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385
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Chen XW, Serag ES, Sneed KB, Liang J, Chew H, Pan SY, Zhou SF. Clinical herbal interactions with conventional drugs: from molecules to maladies. Curr Med Chem 2012; 18:4836-50. [PMID: 21919844 DOI: 10.2174/092986711797535317] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2011] [Revised: 08/17/2011] [Accepted: 08/20/2011] [Indexed: 11/22/2022]
Abstract
Clinical studies and case reports have identified a number of herb-drug interactions potentiated by the concurrent use of herbal medicines with prescription drugs. The purpose of this paper is to discuss the mechanisms and clinical implications of such herb-drug interactions by reviewing published human studies. Both pharmacokinetic and pharmacodynamic components may be involved in herbdrug interactions, although metabolic induction or inhibition is a common underlying mechanism for many herb-drug interactions. Drugs that have a high potential to interact with herbal medicines usually have a narrow therapeutic index, including warfarin, digoxin, cyclosporine, tacrolimus, amitriptyline, midazolam, indinavir, and irinotecan. Many of them are substrates of cytochrome P450s (CYPs) and/or P-glycoprotein (P-gp). Herbal medicines that are reported to interact with drugs include garlic (Allium sativum), ginger (Zingiber officinale), ginkgo (Ginkgo biloba), ginseng (Panax ginseng), and St. John's wort (Hypericum perforatum). For example, garlic has been shown to increase the clotting time and international normalized ratio (INR) of warfarin, cause hypoglycaemia when taken with chlorpropamide, and reduce the area under the plasma concentration-time curve (AUC) and maximum concentration of saquinavir in humans. Similarly, case reports have demonstrated that ginkgo may potentiate bleeding when combined with warfarin or aspirin, increases blood pressure when combined with thiazide diuretics, and has even led to a coma when combined with trazodone, a serotonin antagonist and reuptake inhibitor used to treat depression. Furthermore, ginseng reduced the blood levels of warfarin and alcohol as well as induced mania if taken concomitantly with phenelzine, a non-selective and irreversible monoamine oxidase inhibitor used as an antidepressant and anxiolytic agent. Lastly, multiple herb-drug interactions have been identified with St. John's wort that involve significantly reduced AUC and blood concentrations of warfarin, digoxin, indinavir, theophylline, cyclosporine, tacrolimus, amitriptyline, midazolam, and phenprocoumon. The clinical consequence of herb-drug interactions varies, from being well-tolerated to moderate or serious adverse reactions, or possibly life-threatening events. Undoubtedly, the early and timely identification of herb-drug interactions is imperative to prevent potentially dangerous clinical outcomes. Further well-designed studies are warranted to address the mechanisms and clinical significance of important herb-drug interactions.
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Qin A, Liang J, Yan D. TH-A-BRA-04: Evaluation of Three IGRT Approaches for Prostate Cancer Treatment. Med Phys 2012. [DOI: 10.1118/1.4736253] [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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Qiuhang Z, Feng K, Chuan G, Li L, Chen G, Liang J, Li M, Ling F. Endoscopic Transoral Approach for Jugular Foramen Schwannoma. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314297] [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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388
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An FP, Bai JZ, Balantekin AB, Band HR, Beavis D, Beriguete W, Bishai M, Blyth S, Boddy K, Brown RL, Cai B, Cao GF, Cao J, Carr R, Chan WT, Chang JF, Chang Y, Chasman C, Chen HS, Chen HY, Chen SJ, Chen SM, Chen XC, Chen XH, Chen XS, Chen Y, Chen YX, Cherwinka JJ, Chu MC, Cummings JP, Deng ZY, Ding YY, Diwan MV, Dong L, Draeger E, Du XF, Dwyer DA, Edwards WR, Ely SR, Fang SD, Fu JY, Fu ZW, Ge LQ, Ghazikhanian V, Gill RL, Goett J, Gonchar M, Gong GH, Gong H, Gornushkin YA, Greenler LS, Gu WQ, Guan MY, Guo XH, Hackenburg RW, Hahn RL, Hans S, He M, He Q, He WS, Heeger KM, Heng YK, Hinrichs P, Ho TH, Hor YK, Hsiung YB, Hu BZ, Hu T, Hu T, Huang HX, Huang HZ, Huang PW, Huang X, Huang XT, Huber P, Isvan Z, Jaffe DE, Jetter S, Ji XL, Ji XP, Jiang HJ, Jiang WQ, Jiao JB, Johnson RA, Kang L, Kettell SH, Kramer M, Kwan KK, Kwok MW, Kwok T, Lai CY, Lai WC, Lai WH, Lau K, Lebanowski L, Lee J, Lee MKP, Leitner R, Leung JKC, Leung KY, Lewis CA, Li B, Li F, Li GS, Li J, Li QJ, Li SF, Li WD, Li XB, Li XN, Li XQ, Li Y, Li ZB, Liang H, Liang J, Lin CJ, Lin GL, Lin SK, Lin SX, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu BJ, Liu C, Liu DW, Liu H, Liu JC, Liu JL, Liu S, Liu X, Liu YB, Lu C, Lu HQ, Luk A, Luk KB, Luo T, Luo XL, Ma LH, Ma QM, Ma XB, Ma XY, Ma YQ, Mayes B, McDonald KT, McFarlane MC, McKeown RD, Meng Y, Mohapatra D, Morgan JE, Nakajima Y, Napolitano J, Naumov D, Nemchenok I, Newsom C, Ngai HY, Ngai WK, Nie YB, Ning Z, Ochoa-Ricoux JP, Oh D, Olshevski A, Pagac A, Patton S, Pearson C, Pec V, Peng JC, Piilonen LE, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Raper N, Rosero R, Roskovec B, Ruan XC, Seilhan B, Shao BB, Shih K, Steiner H, Stoler P, Sun GX, Sun JL, Tam YH, Tanaka HK, Tang X, Themann H, Torun Y, Trentalange S, Tsai O, Tsang KV, Tsang RHM, Tull C, Viren B, Virostek S, Vorobel V, Wang CH, Wang LS, Wang LY, Wang LZ, Wang M, Wang NY, Wang RG, Wang T, Wang W, Wang X, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Webber DM, Wei YD, Wen LJ, Wenman DL, Whisnant K, White CG, Whitehead L, Whitten CA, Wilhelmi J, Wise T, Wong HC, Wong HLH, Wong J, Worcester ET, Wu FF, Wu Q, Xia DM, Xiang ST, Xiao Q, Xing ZZ, Xu G, Xu J, Xu J, Xu JL, Xu W, Xu Y, Xue T, Yang CG, Yang L, Ye M, Yeh M, Yeh YS, Yip K, Young BL, Yu ZY, Zhan L, Zhang C, Zhang FH, Zhang JW, Zhang QM, Zhang K, Zhang QX, Zhang SH, Zhang YC, Zhang YH, Zhang YX, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao QW, Zhao YB, Zheng L, Zhong WL, Zhou L, Zhou ZY, Zhuang HL, Zou JH. Observation of electron-antineutrino disappearance at Daya Bay. PHYSICAL REVIEW LETTERS 2012; 108:171803. [PMID: 22680853 DOI: 10.1103/physrevlett.108.171803] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Indexed: 05/23/2023]
Abstract
The Daya Bay Reactor Neutrino Experiment has measured a nonzero value for the neutrino mixing angle θ(13) with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GWth reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43,000 ton-GWth-day live-time exposure in 55 days, 10,416 (80,376) electron-antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to expected number of antineutrinos at the far hall is R=0.940±0.011(stat.)±0.004(syst.). A rate-only analysis finds sin(2)2θ(13)=0.092±0.016(stat.)±0.005(syst.) in a three-neutrino framework.
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Hull R, Merali T, Mills A, Liang J, Komari N. Rate and time course of thromboembolism events in cancer patients. Thromb Res 2012. [DOI: 10.1016/s0049-3848(12)70053-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhang K, Zhang M, Zhao H, Yan B, Zhang D, Liang J. S100A4 regulates motility and invasiveness of human esophageal squamous cell carcinoma through modulating the AKT/Slug signal pathway. Dis Esophagus 2012; 25:731-9. [PMID: 22458600 DOI: 10.1111/j.1442-2050.2012.01323.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The involvement of S100A4 in modulating invasiveness of esophageal squamous cell carcinoma (ESCC) cell lines was explored. It was shown that S100A4 expression is positively correlated with the degree of invasiveness in human ESCC cells. The S100A4-rich EC-1 cells displayed higher migratory and invasive cell behavior while ET-1 cells with low S100A4 expression levels displayed lower migratory and invasive cell behavior. S100A4 silencing by small interfering (siRNA) in EC-1 cells induced E-cadherin expression, and overexpression of S100A4 in a lowly invasive TE-1 cells suppressed E-cadherin expression. It is suggested that S100A4 silencing inhibit invasion via E-cadherin upregulation, and overexpression of S100A4 promote invasion via E-cadherin downregulation in ESCC cells. Compared with the vector-transfected cells, S100A4 silencing in EC-1 cells showed reduced ability of migration and invasiveness, and overexpression of S100A4 in TE-1 cells showed increased ability of migration and invasiveness via wound-healing and Transwell assay, and pseudometastatic model assay. Furthermore, re-expression of S100A4 could increase the invasive phenotypes in S100A4 siRNA transfected EC-1 cells, and S100A4 silencing could decrease the invasive phenotypes in S100A4 circular DNA (cDNA) transfected TE-1 cells. It was found that Slug is downregulated in S100A4 siRNA transfected EC-1 cells, and Slug is upregulated in S100A4 cDNA transfected TE-1 cells. It was also discovered S100A4 cDNA induced protein kinase B (AKT) phosphorylation at Serine-473(phospho-AKT [p-AKT]) levels, followed by the Slug upregulation, and S100A4 siRNA decreases the phospho-AKT levels, followed by the Slug downregulation. The data suggested that S100A4 could regulate migratory and invasive behavior of human ESCC cells through modulating AKT/Slug pathway.
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Moore O, Goh N, Corte T, Rouse H, Hennessy O, Byron J, Thakkar V, Sahhar J, Roddy J, Youssef P, Nash P, Zochling J, Proudman S, Stevens W, Nikpour M, Moore O, Goh N, Corte T, Rouse H, Hennessy O, Byron J, Thakkar V, Sahhar J, Roddy J, Youssef P, Nash P, Zochling J, Proudman S, Stevens W, Nikpour M, Tourkina E, Dyer S, Reese C, Oates JC, Hofbauer A, Bonner M, Visconti RP, Zhang J, Silver RM, Hoffman S, Liu X, Mayes M, Tan F, Harper B, Gonzalez E, Draeger H, Sharif R, Reveille J, Arnett F, Assassi S, Bogatkevich G, Akter T, Atanelishvili I, Liang J, Spyropoulos D, Silver R. S.2.1 Identifying and quantifying prognostic factors in SSc-related interstitial lung disease using a time-varying covariate survival model. Rheumatology (Oxford) 2012. [DOI: 10.1093/rheumatology/ker468] [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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392
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Wang J, Liu B, Gu S, Liang J. Effects of Wnt/β-catenin signalling on proliferation and differentiation of apical papilla stem cells. Cell Prolif 2012; 45:121-31. [PMID: 22288815 DOI: 10.1111/j.1365-2184.2012.00806.x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES The Wnt signalling pathway has been shown to play an important role in tooth development, however its effects with stem cells from the apical papilla (SCAP) have remained unclear. The purpose of this study was to determine effects of Wnt/β-catenin on proliferation and differentiation of SCAP in vitro. MATERIALS AND METHODS SCAP were obtained, identified and cultured. Cell proliferation, alkaline phosphatase (ALP) activity, mRNA expression of mineralization-related genes and mineralized nodule formation were measured in presence or absence of various concentrations of lithium chloride. RESULTS MTT assay and flow cytometry demonstrated that Wnt/β-catenin activity could promote proliferation of SCAP. Real-time PCR analysis found that Wnt/β-catenin strongly upregulated expression of dentine sialophosphoprotein, osteocalcin and ALP in SCAP after incubation with mineralization induction medium, while ALP and alizarin red staining indicated that Wnt/β-catenin enhanced ALP activity and formation of mineralized nodules. CONCLUSION Our results suggest that canonical Wnt/β-catenin signalling promotes proliferation and odonto/osteogenic differentiation of SCAP.
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Punwani N, Scherle P, Flores R, Shi J, Liang J, Yeleswaram S, Levy R, Williams W, Gottlieb A. Preliminary clinical activity of a topical JAK1/2 inhibitor in the treatment of psoriasis. J Am Acad Dermatol 2012; 67:658-64. [PMID: 22281165 DOI: 10.1016/j.jaad.2011.12.018] [Citation(s) in RCA: 133] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 12/06/2011] [Accepted: 12/20/2011] [Indexed: 11/16/2022]
Abstract
BACKGROUND Janus-associated kinases (JAKs) are involved in signal transduction from a variety of cytokines implicated in the pathogenesis of psoriasis, including interleukin (IL)-12, IL-23, and interferon-γ. INCB018424, a small molecule inhibitor of JAK1 and JAK2, inhibits cytokine-induced JAK/signal transducers and activators of transcription signaling and the resultant production of inflammatory proteins (eg, IL-17). OBJECTIVE We sought to demonstrate proof of concept in patients with stable plaque psoriasis. METHODS Patients were dosed with vehicle, 0.5% or 1.0% INCB018424 phosphate cream once a day or 1.5% twice a day for 28 days. Additional groups included two active comparators (calcipotriene 0.005% cream or betamethasone dipropionate 0.05% cream). RESULTS Both the 1% and the 1.5% cream improved lesion thickness, erythema, and scaling and reduced lesion area compared with placebo. A composite lesion score decreased by greater than 50% with the efficacious doses of INCB018424 compared with 32% for vehicle controls. Topical application of INCB018424 was well tolerated with few mild adverse events noted. Mean plasma concentrations of INCB018424 after topical application of 0.5% to 1.5% cream were in the low nanomolar range, representing a fraction (<1%) of the half maximal inhibitory concentration (IC(50)) in whole blood for inhibition of cytokine-stimulated signal transducers and activators of transcription-3 phosphorylation. LIMITATIONS This study was limited by the relatively short study duration and small sample size. CONCLUSION Topical INCB018424 is safe, is well tolerated, and exhibits clinical activity in the topical treatment of psoriasis.
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Zhang G, Jiang J, Luo S, Tang S, Liang J, Yao P. Analyses of CDC2L1 gene mutations in keloid tissue. Clin Exp Dermatol 2011; 37:277-83. [PMID: 22188294 DOI: 10.1111/j.1365-2230.2011.04225.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Keloid disease is the result of a deregulated wound-healing process. Loss of heterozygosity on chromosome 1p36 has been shown to be associated with keloid formation in humans. The cell division cycle 2-like 1 (CDC2L1) gene is known to be essential for eukaryotic cell-cycle control, and has also been mapped to 1p36. AIM To verify the possible association between keloid disease and somatic mutation of the CDC2L1 gene on chromosome 1p36. METHODS Mutations of the CDC2L1 gene in keloid and healthy skin tissues were screened by denaturing high-performance liquid chromatography, and confirmed by DNA sequencing analysis. RESULTS Of the 27 patients with keloid assessed, 21 had mutations. The most prevalent exon affected was exon 7, with 15 patients affected: 10 patients (37%) had a base G deletion at codon 247, and 12 patients (44.4%) had a base A insertion at codon 267 (6 patients (25.9%) had both mutations). The remaining six patients had mutations in exons 11 (codon 433; n = 3) and 14 (codon 520; n = 3). Comparing the keloid skin tissues with the healthy control skin tissues, significant differences were seen between the groups for the base G deletion at codon 247 and the base A insertion at codon 267. CONCLUSIONS We have identified a correlation between two exon 7 mutations of the CDC2L1 gene and keloid disease. A further study of protein-kinase activity should be conducted to confirm the functionality of the CDC2L1 gene in the prevention of scar formation.
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Ning QY, Wu JZ, Zang N, Liang J, Hu YL, Mo ZN. Key pathways involved in prostate cancer based on gene set enrichment analysis and meta analysis. GENETICS AND MOLECULAR RESEARCH 2011; 10:3856-87. [PMID: 22194210 DOI: 10.4238/2011.december.14.10] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Prostate cancer is one of the most common male malignant neoplasms; however, its causes are not completely understood. A few recent studies have used gene expression profiling of prostate cancer to identify differentially expressed genes and possible relevant pathways. However, few studies have examined the genetic mechanics of prostate cancer at the pathway level to search for such pathways. We used gene set enrichment analysis and a meta-analysis of six independent studies after standardized microarray preprocessing, which increased concordance between these gene datasets. Based on gene set enrichment analysis, there were 12 down- and 25 up-regulated mixing pathways in more than two tissue datasets, while there were two down- and two up-regulated mixing pathways in three cell datasets. Based on the meta-analysis, there were 46 and nine common pathways in the tissue and cell datasets, respectively. Three up- and 10 down-regulated crossing pathways were detected with combined gene set enrichment analysis and meta-analysis. We found that genes with small changes are difficult to detect by classic univariate statistics; they can more easily be identified by pathway analysis. After standardized microarray preprocessing, we applied gene set enrichment analysis and a meta-analysis to increase the concordance in identifying biological mechanisms involved in prostate cancer. The gene pathways that we identified could provide insight concerning the development of prostate cancer.
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Hu YL, De Lay M, Rose SD, Carbonell WS, Aghi MK, Rose SD, Carbonell WS, De Lay M, Hu YL, Paquette J, Tokuyasu T, Tsao S, Chaumeil M, Ronen S, Aghi MK, Matlaf LA, Soroceanu L, Cobbs C, Soroceanu L, Matlaf L, Harkins L, Cobbs C, Garzon-Muvdi T, Rhys CA, Smith C, Kim DH, Kone L, Farber H, An S, Levchenko A, Quinones-Hinojosa A, Lemke D, Pfenning PN, Sahm F, Klein AC, Kempf T, Schnolzer M, Platten M, Wick W, Smith SJ, Rahman R, Rahman C, Barrow J, Macarthur D, Rose F, Grundy RG, Kaley TJ, Huse J, Karimi S, Rosenblum M, Omuro A, DeAngelis LM, de Groot JF, Kong LY, Wei J, Wang T, Piao Y, Liang J, Fuller GN, Qiao W, Heimberger AB, Jhaveri N, Cho H, Torres S, Wang W, Schonthal A, Petasis N, Louie SG, Hofman F, Chen TC, Yamada R, Sumual S, Buljan V, Bennett MR, McDonald KL, Weiler M, Pfenning PN, Thiepold AL, Jestaedt L, Gronych J, Dittmann LM, Jugold M, Kosch M, Combs SE, von Deimling A, Weller M, Bendszus M, Platten M, Wick W, Kwiatkowska A, Paulino V, Tran NL, Symons M, Stockham AL, Borden E, Peereboom D, Hu Y, Chaturbedi A, Hamamura M, Mark E, Zhou YH, Abbadi S, Guerrero-Cazares H, Pistollato F, Smith CL, Ruff W, Puppa AD, Basso G, Quinones-Hinojosa A, Monje M, Freret ME, Masek M, Fisher PG, Haddix T, Vogel H, Kijima N, Hosen N, Kagawa N, Hashimoto N, Fujimoto Y, Kinoshita M, Sugiyama H, Yoshimine T, Anneke N, Bob H, Pieter W, Arend H, William L, Eoli M, Calleri A, Cuppini L, Anghileri E, Pellegatta S, Prodi E, Bruzzone MG, Bertolini F, Finocchiaro G, Zhu D, Hunter SB, Vertino PM, Van Meir EG, Cork SM, Kaur B, Cooper L, Saltz JH, Sandberg EM, Van Meir EG, Burrell K, Hill R, Zadeh G, Parker JJ, Dionne K, Massarwa R, Klaassen M, Niswander L, Kleinschmidt-DeMasters BK, Waziri A, Jalali S, Wataya T, Salehi F, Croul S, Gentili F, Zadeh G, Jalali S, Foltz W, Burrell K, Lee JI, Agnihorti S, Menard C, Chung C, Zadeh G, Torres S, Jhaveri N, Wang W, Schonthal AH, Louie SG, Hofman FM, Chen TC, Elena P, Faivre G, Demopoulos A, Taillibert S, Rosenblum M, Omuro A, Kirsch M, Martin KD, Bertram A, uckermann O, Leipnitz E, Weigel P, Temme A, Schackert G, Geiger K, Gerstner E, Jennings D, Chi AS, Plotkin S, Kwon SJ, Pinho M, Polaskova P, Batchelor TT, Sorensen AG, Hossain MB, Gururaj AE, Cortes-Santiago N, Gabrusiewicz K, Yung WKA, Fueyo J, Gomez-Manzano C, Gil OD, Noticewala S, Ivkovic S, Esencay M, Zagzagg D, Rosenfeld S, Bruce JN, Canoll P, Chang JH, Seol HJ, Weeks A, Smith CA, Rutka JT, Georges J, Samuelson G, Misra A, Joy A, Huang Y, McQuilkin M, Yoshihiro A, Carpenter D, Butler L, Feuerstein B, Murphy SF, Vaghaiwalla T, Wotoczek-Obadia M, Albright R, Mack D, Lawn S, Henderson F, Jung M, Dakshanamurthy S, Brown M, Forsyth P, Brem S, Sadr MS, Maret D, Sadr ES, Siu V, Alshami J, Trinh G, Denault JS, Faury D, Jabado N, Nantel A, Del Maestro R. ANGIOGENESIS AND INVASION. Neuro Oncol 2011; 13:iii1-iii9. [PMCID: PMC3222963 DOI: 10.1093/neuonc/nor147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
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Wang H, Lu RC, Liang J. Comment to case report on intravascular lymphoma. Neth J Med 2011; 69:535. [PMID: 22173370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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398
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Furnari F, Fenton T, Nathanson D, de Alberquerque CP, Kuga D, Wanami A, Dang J, Yang H, Tanaka K, Gao L, Oba-Shinjo S, Uno M, Inda MDM, Bachoo R, James CD, DePinho R, Vandenberg S, Zhou H, Marie S, Mischel P, Cavenee W, Szerlip N, Pedraza A, Huse J, Mikkelsen T, Brennan C, Szerlip N, Castellani RJ, Ivanova S, Gerzanich VV, Simard JM, Ito M, See W, Mukherjee J, Ohba S, Tan IL, Pieper RO, Lukiw WJ, Culicchia F, Pogue A, Bhattacharjee S, Zhao Y, Proescholdt MA, Merrill M, Storr EM, Lohmeier A, Brawanski A, Abraham S, Jensen R, Khatua S, Gopal U, Du J, He F, Golub T, Isaacs JS, Dietrich J, Kalogirou-Valtis Y, Ly I, Scadden D, Proschel C, Mayer-Proschel M, Rempel SA, Schultz CR, Golembieski W, Brodie C, Mathew LK, Skuli N, Mucaj V, Imtiyaz HZ, Venneti S, Lal P, Zhang Z, Davuluri RV, Koch C, Evans S, Simon MC, Ranganathan P, Clark P, Salamat S, Kuo JS, Kalejta RF, Bhattacharjee B, Renzette N, Moser RP, Kowalik TF, McFarland BC, Ma JY, Langford CP, Gillespie GY, Yu H, Zheng Y, Nozell SE, Huszar D, Benveniste EN, Lawrence JE, Cook NJ, Rovin RA, Winn RJ, Godlewski JA, Ogawa D, Bronisz A, Lawler S, Chiocca EA, Lee SX, Wong ET, Swanson KD, Liu KW, Feng H, Bachoo R, Kazlauskas A, Smith EM, Symes K, Hamilton RL, Nagane M, Nishikawa R, Hu B, Cheng SY, Silber J, Jacobsen A, Ozawa T, Harinath G, Brennan CW, Holland EC, Sander C, Huse JT, Sengupta R, Dubuc A, Ward S, Yang L, Northcott P, Kroll K, Taylor M, Wechsler-Reya R, Rubin J, Chu WT, Lee HT, Huang FJ, Aldape K, Yao J, Steeg PS, Lu Z, Xie K, Huang S, Sim H, Agudelo-Garcia PA, Hu B, Viapiano MS, Hu B, Agudelo-Garcia PA, Saldivar J, Sim H, Dolan C, Mora M, Nuovo G, Cole S, Viapiano MS, Stegh AH, Ryu MJ, Liu Y, Du J, Zhong X, Marwaha S, Li H, Wang J, Salamat S, Chang Q, Zhang J, Ng HK, Yang L, Poon WS, Zhou L, Pang JC, Chan A, Didier S, Kwiatkowska A, Ennis M, Fortin S, Rushing E, Eschbacher J, Tran N, Symons M, Roldan G, McIntyre JB, Easaw J, Magliocco A, Wykosky J, Cavenee W, Furnari F, Lu D, Mreich E, Chung S, Teo C, Wheeler H, McDonald KL, Lawn S, Forsyth P, Sonabend AM, Lei L, Kennedy B, Soderquist C, Guarnieri P, Leung R, Yun J, Sisti J, Castelli M, Bruce S, Bruce R, Ludwig T, Rosenfeld S, Bruce JN, Canoll P, Lamszus K, Schulte A, Gunther HS, Riethdorf S, Phillips HS, Westphal M, Siegal T, Zrihan D, Granit A, Lavon I, Singh M, Chandra J, Ogawa D, Nakashima H, Godlewski J, Chiocca AE, Kapoor GS, Poptani H, Ittyerah R, O'Rourke DM, Sadraei NH, Burgett M, Ahluwalia M, Tipps R, Khosla D, Weil R, Nowacki A, Prayson R, Shi T, Gladson C, Moeckel S, Meyer K, Bosserhoff A, Spang R, Leukel P, Vollmann A, Jachnick B, Stangl C, Proescholdt M, Bogdahn U, Hau P, Kaur G, Sun M, Kaur R, Bloch O, Jian B, Parsa AT, Hossain A, Shinojima N, Gumin J, Feng G, Lang FF, Li L, Yang CR, Chakraborty S, Hatanpaa K, Chauncey S, Jiwani A, Habib A, Nguyen T, Nakashima H, Chiocca EA, Munson J, Machaidze R, Kaluzova M, Bellamkonda R, Hadjipanayis CG, Zhang Y, McFarland B, Bredel M, Benveniste EN, Lee SH, Zerrouqi A, Khwaja F, Devi NS, Van Meir EG, Haseley A, Boone S, Wojton J, Yu L, Kaur B, Wojton JA, Naduparambil J, Denton N, Chakravarti A, Kaur B, Conrad CA, Wang X, Sheng X, Nilsson C, Marshall AG, Emmett MR, Hu Y, Mark L, Zhou YHZ, Dhruv H, McDonough W, Tran N, Armstrong B, Tuncali S, Eschbacher J, Kislin K, Berens M, Plas D, Gallo C, Stringer K, Kendler A, McPherson C, Castelli MA, Ellis JA, Assanah M, Bruce JN, Canoll P, Ogden A, Liang J, Piao Y, deGroot JF, Gordon N, Patel D, Chakravarti A, Palanichamy K, Hervey-Jumper S, Wang A, He X, Zhu T, Heth J, Muraszko K, Fan X, Nakashima H, Nguyen T, Chiocca EA, Liu WM, Huang P, Rani S, Stettner MR, Jerry S, Dai Q, Kappes J, Tipps R, Gladson CL, Chakravarty D, Pedraza A, Koul D, Alfred Yung WK, Brennan CW, Jensen SA, Luciano J, Calvert A, Nagpal V, Stegh A, Kang SH, Yu MO, Lee MG, Chi SG, Chung YG, Cooper MK, Valadez JG, Grover VK, Kouri FM, Chin L, Stegh AH, Ahluwalia MS, Khosla D, Weil RJ, McGraw M, Huang P, Prayson R, Nowacki A, Barnett GH, Gladson C, Kang C, Zou J, Lan F, Yue X, Shi Z, Zhang K, Han L, Pu P, Seaman BF, Tran ND, McDonough W, Dhruv H, Kislin K, Berens M, Battiste JD, Sirasanagandla S, Maher EA, Bachoo R, Sugiarto S, Persson A, Munoz EG, Waldhuber M, Vandenberg S, Stallcup W, Philips J, Berger MS, Bergers G, Weiss WA, Petritsch C. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2011; 13:iii10-iii25. [PMCID: PMC3199169 DOI: 10.1093/neuonc/nor148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023] Open
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Yang B, Zhu X, Liang J, Chen X, Ding Q, Wan Y, Xu J. Aberrant expression of MBD genes in CD4+ T cells from patients with systemic lupus erythematosus. Lupus 2011; 21:111-3. [PMID: 21993382 DOI: 10.1177/0961203311422714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Xiao Z, Zhang W, Wang Q, Zhou Z, Fen Q, Chen D, Liang J, Hui Z, Yin W. Factor Analysis of Preoperative Radiotherapy of Esophageal Squamous Cell Carcinoma Affecting Prognosis. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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