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Zhang J, Xu ZP, Yang YC, Zhu JS, Zhou Z, Chen WX. Expression of Yes-associated protein in gastric adenocarcinoma and inhibitory effects of its knockdown on gastric cancer cell proliferation and metastasis. Int J Immunopathol Pharmacol 2012; 25:583-90. [PMID: 23058008 DOI: 10.1177/039463201202500304] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Yes-associated protein (YAP) has been implicated as an oncogene in multiple human cancers. In the present study, human gastric adenocarcinoma tissues of different grades (N=78) were collected and the mRNA and protein expression of YAP and phosphorylated YAP (p-YAP) in gastric adenocarcinomas were evaluated using immunohistochemistry, Real-time PCR and Western blot assays. Then, human gastric cancer SGC-7901 cells were stably transfected with lentivirus-mediated YAP small hairpin RNA (shRNA). The expression levels of YAP, proliferating cell nuclear antigen (PCNA) and metalloproteinase-2 (MMP-2) were detected and the effects of shRNA-mediated knockdown of YAP on cell proliferation and metastasis were assessed in gastric cancer cells. As a result, the expression of YAP was observed in 69.23 percent gastric adenocarcinoma tissues, elevating with the ascending order of tumor malignancy. Knockdown of YAP could down-regulated the expression of PCNA and MMP-2, and inhibit the proliferation and metastasis of gastric cancer cells. In conclusion, YAP is strongly expressed in gastric adenocarcinomas, and knockdown of YAP may inhibit gastric cancer cell proliferation and metastasis through down-regulation of PCNA and MMP-2 expression, suggesting that YAP represents an important therapeutic target in human gastric cancer.
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602
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Wang M, Wang L, Zhou Z, Gao Y, Wang L, Shi X, Gai Y, Mu C, Song L. The molecular characterization of a catalase from Chinese mitten crabEriocheir sinensis. Int J Immunogenet 2012; 40:230-40. [DOI: 10.1111/iji.12019] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 02/23/2012] [Accepted: 10/18/2012] [Indexed: 11/29/2022]
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603
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Qiao X, Li J, Song Y, Zhou Z, Zhen C. Prospective Study of Simultaneous Integrated Boost Conformal Radiation Therapy in Locally Advanced Central Non-small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1466] [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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604
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Qiao X, Li M, Zhou Z, Zhen C, Song Y, Li J. A Prospectively Randomized Study of Clinical Target Volume Margins for 3-dimensional Conformal Radiation Therapy in Patients With Squamous Cell Carcinoma of Thoracic Esophagus. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.317] [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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605
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Salle JY, Zhou Z, Cugy E, Judet A, Hamonet J, Bordes J, Daviet JC. Évaluation de l’efficacité de la toux volontaire en phase aiguë post-accident vasculaire cérébral (AVC) : temps maximal de phonation. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.936] [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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606
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Flores JC, Crespo D, Torres V, Carmona J, Rainforth WM, Zhou Z, Calderon-Moreno JM. Stability in air of silver and silver oxide nanoparticle shells deposited over silica spheres without using coupling agents. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2012; 12:8158-8164. [PMID: 23421194 DOI: 10.1166/jnn.2012.4516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The deposition of silver nanoparticles on the surface of silica was carried out using our simple, robust and rapid chemical method without surface modification of silica or added coupling agents. The process was carried out at room temperature using water/methanol mixtures, tetraethyl orthosilicate as Si source and silver nanoparticles (NPs) in a single-pot reaction. Using EDS, XRD, HRTEM and High Angle Annular Dark Field (HAADF) STEM characterization techniques, we have found the coexistence of silver NPs and silver oxides NPs anchored to the surface of sub-micron silica spheres, with Ag NPs predominating sizes around 2-3 nm approximately, and Ag2O NPs sizes over 10 nm.
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607
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Salle JY, Zhou Z, Cugy E, Judet A, Hamonet J, Bordes J, Daviet JC. Efficiency of cough: Maximum phonation time: Bedside assessment. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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608
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Cornacchione LA, Qi B, Bianco J, Zhou Z, Amsden BG. Photo-Cross-Linked Poly(ethylene carbonate) Elastomers: Synthesis, in Vivo Degradation, and Determination of in Vivo Degradation Mechanism. Biomacromolecules 2012; 13:3099-107. [DOI: 10.1021/bm300913q] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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609
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Wu B, Li W, Qian C, Zhou Z, Xu W, Wu J. Down-regulated P53 by siRNA increases Smad4's activity in promoting cell apoptosis in MCF-7 cells. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2012; 16:1243-1248. [PMID: 23047509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Wildtype p53 and Smad4 are important suppressor genes in tumor genesis and development. The mutation in p53 gene is closely related to the early formation of breast cancer. In this research, we try to explore the status of Smad4 in breast cancer cell line MCF7 after knocking down p53. MATERIALS AND METHODS MCF-7 was bought from American Type Culture Collection (ATCC). Cells were cultured in Dulbecco's Modified Eagle Medium (DMEM) with 10% fetal bovine serum (FBS) in incubator containing 5% CO2 at 37°C. In this study we apply to analytical methods such as growth ratio analysis in vitro, immunoblot analysis, flow cytometry for cell cycle analysis, RNA extraction and Real-Time PCR and data analysis. RESULTS The results indicated that specific down regulating of p53 can significantly increase the expression of Smad4 in cancer cell line MCF7 and promote cell apoptosis. In MCF7 cell line p53 gene is negatively related to Smad4 in great extent. CONCLUSIONS In our study, we detect the expression and function of Smad4 by suppressing p53 expression in MCF7, trying to figure out the relationship and signaling pathway between them. In this study, we try to found the affection of p53 on Smad4, so as to induce apoptosis in tumor cell, achieving the goal of targeted cancer prevention and treatment.
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610
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Cao G, Zhou Z, Wang Y. Synthesis and bioactivity of rotenone oxime O-ether derivatives. B CHEM SOC ETHIOPIA 2012. [DOI: 10.4314/bcse.v26i3.11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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611
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Wu ZF, Liu GL, Zhou Z, Wang GX, Xia L, Liu JL. Induction of Immune-related Gene Expression in Ctenopharyngodon idella Kidney Cells by Secondary Metabolites from Immunostimulatory Alcaligenes faecalis FY-3. Scand J Immunol 2012; 76:131-40. [DOI: 10.1111/j.1365-3083.2012.02722.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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612
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Palmer GM, Tiran Z, Zhou Z, Capozzi ME, Park W, Coletta C, Pyriochou A, Kliger Y, Levy O, Borukhov I, Dewhirst MW, Rotman G, Penn JS, Papapetropoulos A. A novel angiopoietin-derived peptide displays anti-angiogenic activity and inhibits tumour-induced and retinal neovascularization. Br J Pharmacol 2012; 165:1891-1903. [PMID: 21943108 DOI: 10.1111/j.1476-5381.2011.01677.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Pathological angiogenesis is associated with various human diseases, such as cancer, autoimmune diseases and retinopathy. The angiopoietin (Ang)-Tie2 system plays critical roles in several steps of angiogenic remodelling. Here, we have investigated the anti-angiogenic effect of a novel angiopoietin-derived peptide. EXPERIMENTAL APPROACH Using computational methods, we identified peptides from helical segments within angiopoietins, which were predicted to inhibit their activity. These peptides were tested using biochemical methods and models of angiogenesis. The peptide with best efficacy, A11, was selected for further characterization as an anti-angiogenic compound. KEY RESULTS The potent anti-angiogenic activity of A11 was demonstrated in a multicellular assay of angiogenesis and in the chorioallantoic membrane model. A11 bound to angiopoietins and reduced the binding of Ang-2 to Tie2. A11 was also significantly reduced vascular density in a model of tumour-induced angiogenesis. Its ability to inhibit Ang-2 but not Ang-1-induced endothelial cell migration, and to down-regulate Tie2 levels in tumour microvessels, suggests that A11 targets the Ang-Tie2 pathway. In a rat model of oxygen-induced retinopathy, A11 strongly inhibited retinal angiogenesis. Moreover, combination of A11 with an anti-VEGF antibody showed a trend for further inhibition of angiogenesis, suggesting an additive effect. CONCLUSIONS AND IMPLICATIONS Our results indicate that A11 is a potent anti-angiogenic compound, through modulation of the Ang-Tie2 system, underlining its potential as a therapeutic agent for the treatment of ocular and tumour neovascularization, as well as other pathological conditions that are dependent on angiogenesis.
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613
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Zhou Z, Shen J, Hong Y, Kaul S, Pfister M, Roy A. Time-Varying Belatacept Exposure and Its Relationship to Efficacy/Safety Responses in Kidney-Transplant Recipients. Clin Pharmacol Ther 2012; 92:251-7. [DOI: 10.1038/clpt.2012.84] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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614
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Zaghloul M, Ahmed S, Eldebaway E, Mousa A, Amin A, Elkhateeb N, Sabry M, Ogiwara H, Morota N, Sufit A, Donson A, Birks D, Patel P, Foreman N, Handler M, Massimino M, Biassoni V, Gandola L, Schiavello E, Pecori E, Potepan P, Bach F, Janssens GO, Jansen MH, Lauwers SJ, Nowak PJ, Oldenburger FR, Bouffet E, Saran F, van Ulzen KK, van Lindert EJ, Schieving JH, Boterberg T, Kaspers GJ, Span PN, Kaanders JH, Gidding CE, Hargrave D, Bailey S, Howman A, Pizer B, Harris D, Jones D, Kearns P, Picton S, Saran F, Wheatley K, Gibson M, Glaser A, Connolly D, Hargrave D, Kawamura A, Nagashima T, Yamamoto K, Sakata J, Lober R, Freret M, Fisher P, Edwards M, Yeom K, Monje M, Jansen M, Aliaga ES, Van Der Hoeven E, Van Vuurden D, Heymans M, Gidding C, De Bont E, Reddingius R, Peeters-Scholte C, van Meeteren AS, Gooskens R, Granzen B, Paardekoper G, Janssens G, Noske D, Barkhof F, Vandertop WP, Kaspers G, Saratsis A, Yadavilli S, Nazarian J, Monje M, Freret M, Mitra S, Mallick S, Kim J, Beachy P, Nobre L, Vasconcelos F, Lima F, Mattos D, Kuiven N, Lima G, Silveira J, Sevilha M, Lima MA, Ferman S, Leblond P, Lansiaux A, Rialland X, Gentet JC, Geoerger B, Frappaz D, Aerts I, Bernier-Chastagner V, Shah R, Zaky W, Grimm J, Bluml S, Wong K, Dhall G, Caretti V, Schellen P, Lagerweij T, Bugiani M, Navis A, Wesseling P, Vandertop WP, Noske DP, Kaspers G, Wurdinger T, Lee H, Ziegler D, Schroeder K, Huang E, Berlow N, Patel R, Becher O, Taylor I, Mao XG, Hutt M, Weingart M, Kahlert U, Maciacyk J, Nikkhah G, Eberhart C, Raabe E, Barton K, Misuraca K, Misuraca K, Becher O, Zhou Z, Rotman L, Ho S, Souweidane M, Hutt M, Lim KJ, Warren K, Chang H, Eberhart C, Raabe E, Lightner D, Haque S, Souweidane M, Khakoo Y, Dunkel I, Gilheeney S, Kramer K, Lyden D, Wolden S, Greenfield J, De Braganca K, Ting-Rong H, Muh-Li L, Kai-Ping C, Tai-Tong W, Hsin-Hung C, Kebudi R, Cakir FB, Agaoglu FY, Gorgun O, Dizdar Y, Ayan I, Darendeliler E, Zapotocky M, Churackova M, Malinova B, Kodet R, Kyncl M, Tichy M, Stary J, Sumerauer D, Minturn J, Shu HK, Fisher M, Patti R, Janss A, Allen J, Phillips P, Belasco J, Taylor K, Baudis M, von Beuren A, Fouladi M, Jones C. DIFFUSE INTRINSIC PONTINE GLIOMA (DIPG). Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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615
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Zhou Z, Wan Y, Zhang Y, Wang Z, Jia R, Fan Y, Nie H, Ying S, Huang P, Wang F. Follicular development and expression of nuclear respiratory factor-1 and peroxisome proliferator-activated receptor γ coactivator-1 alpha in ovaries of fetal and neonatal doelings. J Anim Sci 2012; 90:3752-61. [PMID: 22665641 DOI: 10.2527/jas.2011-4971] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In livestock, the ovarian reserve of follicles is established during the fetal stage. However, at least two-thirds of the oocytes present in the reserve die because of apoptosis before birth. Notably, mitochondria have been reported to play a crucial role in the fate (life/death) of oocytes. In this study, mitochondrial regulators nuclear respiratory factor-1 (NRF-1) and PPAR γ coactivator-1 alpha (PGC-1α) were examined during this period of follicle development to investigate their effects on follicular development and apoptosis. Fetal and neonatal Capra haimen were used, ranging in age from 60 d postcoitum (dpc) to 30 d postpartum (dpp). Our data demonstrated that egg nests were the earliest recognizable gamete cells in ovaries of fetal and neonatal doelings. Proportions of egg nests decreased from 92.68 to 25.08% whereas single follicles increased from 7.32 to 74.92% between 60 and 120 dpc. Subsequently, between 90 and 120 dpc, the proportion of primordial follicles increased from 9.98 to 61.56% (P < 0.01). However, it did not change between 1 and 30 dpp (P = 0.12). The proportion of primary follicles increased from 1.23 to 37.93% between 90 dpc to 1 dpp (P = 0.01) but did not change between 1 and 30 dpp (P = 0.11). Meanwhile, proportions of secondary and tertiary follicles increased in an age-dependent manner. In addition, results of this study suggested that NRF-1 and PGC-1α proteins are mainly localized in germ cells of egg nests, cytoplasm of oocytes, and granulosa cells of follicles ranging from primordial to tertiary follicles. The transcript abundance of NRF-1 mRNA was up-regulated in 60-dpc-old ovaries compared with 1-dpp-old ovaries (P < 0.05), but the PGC-1α mRNA expression pattern did not change (P = 0.05). Nevertheless, the number of terminal deoxynucleotidyltransferase UTP nick-end labeling (TUNEL) positive cells and caspase-3 activity in 60-dpc-old ovaries was less than those in 1-dpp-old ovaries (P < 0.01, P = 0.01). In conclusion, our results demonstrate that the key stage of primordial follicle formation is between 90 and 120 dpc in Capra haimen. Also, this study suggests that NRF-1 and PGC-1α might have roles in cell apoptosis during ovarian development of fetal and neonatal Capra haimen. These results improve our understanding of apoptotic mechanisms in oogenesis and folliculogenesis.
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616
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Ibanez J, Brell M, Tomas M, Roldan P, Guibelalde M, Tavera A, Salinas JA, Suzuki T, Fukuoka K, Kohga T, Yanagisawa T, Adachi J, Mishima K, Fujimaki T, Matsutani M, Ishihara S, Nishikawa R, Keating R, DeFreitas T, Al Abbas F, Myseros J, Yaun A, Magge S, Pettorini B, Al-Mahfoudh R, Yousaf J, Pizer B, Jenkinson M, Mallucci C, Pettorini B, Parlato S, Yousaf J, Pizer B, Kumar R, Avula S, Mallucci C, Munoz M, Yano H, Ohe N, Nakayama N, Shinoda J, Iwama T, Rahman C, Smith S, Morgan P, Langmack K, Macarthur D, Rose F, Shakesheff K, Grundy R, Rahman R, Krieger M, Si SJ, Flores N, Haley K, Malvar J, Sposto R, Fangusaro J, Dhall G, Davidson TB, Finlay J, Caretti V, Lagerweij T, Schellen P, Jansen M, van Vuurden DG, Hulleman E, Idema S, Vandertop WP, Noske DP, Kaspers G, Wurdinger T, Luther N, Zhou Z, Zanzonico P, Cheung NK, Souweidane M, Kotecha R, Pascoe E, Rushing E, Rorke-Adams L, Zwerdling T, Gao X, Li X, Greene S, Amirjamshidi A, Kim SK, Lima M, Hung PC, Lakhdar F, Mehta N, Liu Y, Devi BI, Sudhir BJ, Lund-Johansen M, Gjerris F, Cole C, Gottardo N, Dorfer C, Slavc I, Dieckmann K, Gruber K, Schmook M, Czech T, Griffin A, Greenfield J, Souweidane M, Lulla RR, Rao V, Haridas A, Ryan M, Goldstein JL, Wainwright M, Tomita T. NEUROSURGERY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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617
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Chen X, Zhao Y, Zhou Z, Zhang X, Li Q, Bai L, Zhang M. Prevalence and risk factors of diabetic retinopathy in Chongqing pre-diabetes patients. Eye (Lond) 2012; 26:816-20. [PMID: 22441028 PMCID: PMC3376294 DOI: 10.1038/eye.2012.50] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Accepted: 02/20/2012] [Indexed: 01/06/2023] Open
Abstract
PURPOSE To investigate the prevalence of diabetic retinopathy (DR) and relative risk factors among Chongqing pre-diabetes patients. METHODS A total of 750 participants were recruited in this cross-sectional study. All participants underwent a complete physical examination and an oral glucose-tolerance test. In all, 110 of the 125 newly diagnosed pre-diabetics and their healthy spouses as controls were examined with fluorescence fundus angiographies, and their blood with biochemical analyses. All the pre-diabetics with DR (23 subjects), 23 normal controls and 23 pre-diabetics without DR were compared for serum concentrations of regulated upon activation, normal T-expressed and secreted (RANTES). Student's t-test was used to compare continuous variables, and χ (2) test and analysis of variance to compare proportions among groups. Multiple logistic regression models were used to determine the risk factors for DR in pre-diabetics. RESULTS In all, 20.91% of the 110 pre-diabetics showed mild non-proliferative DR (NPDR). There was a statistically significant difference in serum concentrations of RANTES between pre-diabetics with and without DR (P<0.01), and also between pre-diabetics with DR and normal controls (P<0.01). However, age, body mass index, waist-hip ratio, triacylglycerol (TG), total cholesterol (TC), high-density lipoprotein-C, low-density lipoprotein-C, blood urea nitrogen, blood creatinine, and urine albumin excretion rate seemed to have no reliable relationship with DR in pre-diabetics (P>0.05). CONCLUSION The prevalence of DR in Chongqing pre-diabetes patients in the study was about 20.91% and only mild NPDR was found. It seems that RANTES is one possible risk factor associated with DR in pre-diabetics, not age, TG and TC, and others.
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618
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Yang K, Chen Y, Gu C, Zhou Z, He C, Tang L, Li S, Zhao L, Meng H, Huang Q. Polydactyly mutation is linked with chromosome 2p region in Beijing fatty chicken. Anim Genet 2012; 44:118-9. [PMID: 22582748 DOI: 10.1111/j.1365-2052.2012.02369.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2012] [Indexed: 11/27/2022]
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Wang G, Dai Y, Hu X, Xiao F, Wu Y, Zhang Z, Zhou Z. Novel ionic liquid analogs formed by triethylbutylammonium carboxylate-water mixtures for CO2 absorption. J Mol Liq 2012. [DOI: 10.1016/j.molliq.2011.12.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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620
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Michna E, Cheng W, Korves C, Sarda S, Schaaf D, Andrews R, Zhou Z, Mardekian J, Joshi A, Birnbaum H, Duh M. A systematic literature review of the efficacy and safety of abuse-deterrent formulation and non-abuse-deterrent formulation prescription opioids in non-cancer pain management. THE JOURNAL OF PAIN 2012. [DOI: 10.1016/j.jpain.2012.01.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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621
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Xu Y, Zhou Z, Xu Y, Wang M, Liu F, Qu H, Hong J. The clinical value of in vivo confocal microscopy for diagnosis of ocular surface squamous neoplasia. Eye (Lond) 2012; 26:781-7. [PMID: 22402703 DOI: 10.1038/eye.2012.15] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To determine the reliability and efficiency of in vivo confocal microscopy for the diagnosis of ocular surface squamous neoplasia (OSSN). METHODS A case series with five consecutive cases of OSSN were investigated retrospectively, of which the characteristics and subspecial types had been estimated by in vivo confocal microscopy before surgery. The structure and cellular features of OSSN were analyzed with other examinations, such as anterior-segment optical coherence tomography (AS-OCT), and confirmed by histopathological biopsy. RESULTS The tumors revealed red gelatinous surfaces with vascular dilatation on the ocular surface of the conjunctival and corneal epithelium in anterior segment photography. Involvement of only corneal epithelium was observed by AS-OCT in three cases, whereas the Bowman's layer and anterior stroma were also invaded in the other two cases. In vivo confocal microscopy showed cellular anisocytosis and enlarged nuclei with high nuclear to cytoplasmic ratio in three cases diagnosed as conjunctival intraepithelial neoplasia; moreover, nests were partially formed by isolated keratinized, binucleated, and actively mitotic dysmorphic epithelial cells in the other two cases diagnosed as carcinoma in situ and ocular surface squamous carcinoma (OSSC). The characteristics assessed from histopathological biopsy were similar to that revealed by in vivo confocal microscopy in all five cases. CONCLUSION In vivo confocal microscopy analysis of cytological characteristics of OSSN is a safe, relatively noninvasive, and effective diagnostic tool in detecting characteristics of OSSN before surgical resection. Although in vivo confocal microscopy cannot replace excisional biopsy for definitive diagnosis, it can be valuable for initial diagnosis and management of patients with OSSN.
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622
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Yang J, Ji M, Zhou Z, Sun J, Peng Y. Sphingosine kinase-signaling pathway: a possible therapeutic target for post-operative cognitive dysfunction. Acta Anaesthesiol Scand 2012; 56:260-1. [PMID: 22091624 DOI: 10.1111/j.1399-6576.2011.02539.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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623
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Renema JJ, Frucci G, Zhou Z, Mattioli F, Gaggero A, Leoni R, de Dood MJA, Fiore A, van Exter MP. Modified detector tomography technique applied to a superconducting multiphoton nanodetector. OPTICS EXPRESS 2012; 20:2806-2813. [PMID: 22330516 DOI: 10.1364/oe.20.002806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present an experimental method to characterize multi-photon detectors with a small overall detection efficiency. We do this by separating the nonlinear action of the multiphoton detection event from linear losses in the detector. Such a characterization is a necessary step for quantum information protocols with single and multiphoton detectors and can provide quantitative information to understand the underlying physics of a given detector. This characterization is applied to a superconducting multiphoton nanodetector, consisting of an NbN nanowire with a bowtie-shaped subwavelength constriction. Depending on the bias current, this detector has regimes with single and multiphoton sensitivity. We present the first full experimental characterization of such a detector.
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Zhou S, Tan C, Dai Z, Zhu H, Xu M, Zhou Z, Wang W, Zhao Y, Fu X, Zhou J, Fan J. Tacrolimus enhances the invasion potential of hepatocellular carcinoma cells and promotes lymphatic metastasis in a rat model of hepatocellular carcinoma: involvement of vascular endothelial growth factor-C. Transplant Proc 2012; 43:2747-54. [PMID: 21911157 DOI: 10.1016/j.transproceed.2011.06.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Revised: 05/20/2011] [Accepted: 06/13/2011] [Indexed: 01/06/2023]
Abstract
PURPOSE The purpose of this study was to elucidate the effect of tacrolimus treatment on tumor growth and metastasis of hepatocellular carcinoma (HCC). METHODS The effect of tacrolimus was investigated on tumor growth and lymph node metastasis in a rat model of HCC. Angiogenesis and lymphangiogenesis were assessed by CD31 and vascular endothelial growth factor receptor 3 (VEGFR-3) immunostaining. Cell proliferation and invasion were monitored in vitro using the Cell Counting Kit-8 (CCK8) and Matrigel Invasion Chambers, respectively. Levels of vascular endothelial growth factor-C (VEGF-C) expression were measured using quantitative real-time polymerase chain reaction (qRT-PCR), immunohistochemisty and Western blots. RESULTS Tacrolimus had no effect on the proliferation of HCC in vitro or in vivo. Treatment with tacrolimus resulted in a dose-dependent increase in the invasive potential of HCC cells in vitro, in the density of peritumoral lymphatic vessels, and in the number and volume of metastatic lymph nodes in August Copenhagen Irish (ACI) rats. qRT-PCR, immunohistochemisty, and Western blot revealed that tacrolimus increased the levels of expression of VEGF-C in HCC. CONCLUSIONS Tacrolimus enhanced the invasive potential of HCC cells, facilitating HCC lymphangiogenesis and promoting lymphatic metastasis in a rat model of HCC. This influence may be the result of an increase in VEGF-C expression by HCC cells. Targeting the VEGF-C/Fms-related tyrosine kinase 4 axis may be a novel treatment for HCC patients after liver transplantation.
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Zhou Z, Chen P, Guo B, Huang F. Dynamic tensile deformation and fracture of a highly particle-filled composite using SHPB and high-speed DIC method. EPJ WEB OF CONFERENCES 2012. [DOI: 10.1051/epjconf/20122601005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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