551
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Zou C, Zhang H, Li Q, Xiao H, Yu L, Ke S, Zhou L, Liu W, Wang W, Huang H, Ma N, Liu Q, Wang X, Zhao W, Zhou H, Gao X. Heme oxygenase-1: a molecular brake on hepatocellular carcinoma cell migration. Carcinogenesis 2011; 32:1840-8. [PMID: 22016469 DOI: 10.1093/carcin/bgr225] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a fatal disease with great public health impact worldwide. Heme oxygenase (HO)-1 has recently been reported as an important player in tumor angiogenesis and metastasis. However, the role of HO-1 in liver cancer metastasis is unclear. In this study, we explored genetic differences and downstream signal transduction pathways of HO-1 in liver cancer cell lines. HO-1 wild-type and mutant cell lines were generated from human liver cancer cell line HepG2. The overexpression of wild-type HO-1 decreased the migration of HepG2 cells. In contrast, the overexpression of mutant HO-1G143H increased the migration of the cancer cells. Interleukin (IL)-6 is one of the major downstream molecules that mediated this process because IL-6 expression and migration are suppressed by HO-1 and increased when HO-1 is knocked down by shRNA. In addition, we demonstrated carbon monoxide (CO) and p38MAPK are the cofactors in this signal pathway. In vivo animal model demonstrated HO-1 inhibited the tumor growth. In conclusion, in vitro and in vivo data show HO-1 inhibits the human HCC cells migration and tumor growth by suppressing the expression of IL-6. The heme degradation product CO is a cofactor in this process and inhibits p38MAPK phosphorylation.
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552
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Wang W, Zhong B, Sun J, Cao J, Tian J, Zhong N, Zhao W, Tian L, Xu P, Guo D, Ju X, Ma W, Li M, Hou W, Lu S. Down-regulated HS6ST2 in osteoarthritis and Kashin-Beck disease inhibits cell viability and influences expression of the genes relevant to aggrecan metabolism of human chondrocytes. Rheumatology (Oxford) 2011; 50:2176-86. [DOI: 10.1093/rheumatology/ker230] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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553
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Zhao W, Fu X, Xu Z, Xiang J. Pattern of Lymph Node Metastases and its Implication in Radiotherapy in Patients with Thoracic Esophageal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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554
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Sun J, Zhong N, Li Q, Min Z, Zhao W, Sun Q, Tian L, Yu H, Shi Q, Zhang F, Lu S. MicroRNAs of rat articular cartilage at different developmental stages identified by Solexa sequencing. Osteoarthritis Cartilage 2011; 19:1237-45. [PMID: 21820522 DOI: 10.1016/j.joca.2011.07.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 06/27/2011] [Accepted: 07/04/2011] [Indexed: 02/02/2023]
Abstract
BACKGROUND Expression profiles of microRNAs (miRNAs) can shape the repertoire of proteins expressed in development, differentiation and diseases. This study aimed to identify miRNA profile of articular cartilage at different developmental stages in rats. METHODS Three small RNA libraries were constructed from the femoral head cartilage of Sprague-Dawley (SD) rats at postnatal day 0, day 21 and day 42 and sequenced by a deep sequencing approach. Then a bioinformatics approach was employed to distinguish genuine miRNAs from small RNAs represented in the mass sequencing data. The expression of indicated miRNAs was determined by stem-loop RT-qPCR to valuate the consistency with Solexa sequencing. RESULTS Two hundred and fifty-eight of 310 known miRNA and miRNA* genes were organized into 91 compact clusters. Two hundred and forty-six miRNAs were detected in all three small RNA libraries of rat articular cartilage. Forty-six, fifty-two and fifty-six miRNA* genes were identified from three small RNA libraries, respectively, and 86 novel miRNA candidate genes were found simultaneously. In addition, 23 known miRNAs were up-regulated (fold change ≥ 4); six were down-regulated (fold change ≤ -4) during articular cartilage development. The predicted targets of differentially expressed miRNAs were locally secreted factors and transcription factors that regulate proliferation and differentiation of chondrocytes. The same expression tendency of indicated miRNAs during articular cartilage development stages was observed by using Solexa sequencing and stem-loop RT-qPCR. CONCLUSION Our study provided a unique opportunity to decipher how the elaboration of the miRNA repertoire contributes to the development process of articular cartilage.
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555
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Arsenault D, Hurley J, Reis I, Zhao W, Takita C, Gomez C, Jorda M, Cioffi-Lavina M, Villasboas J, Wright J. Prognostic Factors for Locoregional Recurrence in HER-2 Overexpressing Breast Cancer Patients Treated with Neoadjuvant Chemotherapy. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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556
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Yu D, Zhao W. Clinical study on decompression and suction drainage in the treatment of large jaw odontogenic cystic lesion. Int J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.ijom.2011.07.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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557
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Panoff J, Hurley J, Takita C, Reis I, Zhao W, Gomez C, Sujoy V, Jorda M, Franceschi D, Wright J. Racial Disparity in Survival Outcome Varies with Molecular Subtype in Breast Cancer Patients Receiving Trimodality Therapy. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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558
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Saigal K, Saeed A, Hurley J, Takita C, Reis I, Zhao W, Ambros T, Ernani V, Sujoy V, Wright J. Pathologic Response and Locoregional Outcome in Post-menopausal ER Positive Breast Cancer Patients Receiving Neoadjuvant Endocrine Therapy vs. Cytotoxic Chemotherapy. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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559
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Wright JL, Takita C, Panoff JE, Reis IM, Zhao W, Sujoy V, Fernandez CG, Jorda M, Franceschi D, Hurley J. The effect of molecular subtype on survival in a racially diverse cohort of patients with high-risk breast cancer receiving trimodality therapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.27_suppl.156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
156 Background: To understand the origins of racial disparities in breast cancer outcomes, the relative importance of race must be examined in the context of molecular subtype. We assessed racial differences in progression-free survival (PFS) and overall survival (OS) in relation to subtype in a cohort of uniformly treated stage II-III breast cancer patients. Methods: We reviewed records of 582 consecutive patients receiving post-mastectomy radiation (PMRT) between 1/1999 and 12/2009 and evaluated the effect of demographic, tumor, and treatment characteristics on PFS and OS. Results: Median follow-up 44.7 months. Patients: 24% black, 76% white, 55% pre/peri-menopausal. Disease: stage II 30%, stage III 70%. Treatment: all had mastectomy and PMRT; 98% had chemotherapy. All ER+ patients received endocrine therapy. Black and non-black patients were similar in age, menopause status, stage, and completion of trimodality therapy. Black patients were more likely to be ER- (56% vs 38%, p=0.0001), PR- (69% vs 54%, p=0.002), and triple negative (TN) (46% vs 24%, p<.0001). Among ER+, there were no differences in menopause or PR status by race. Black patients had worse PFS (60.6% vs 78.3%, p=.001) and OS (72.8% vs 87.7%, p<.0001). There was no racial difference in PFS (p=0.229 and 0.273 respectively) or OS (p=0.113 and 0.097 respectively) among ER- or TN. Among ER+, black patients had worse PFS (55% vs 81%, p<.001) and OS (73% vs 91%, p<.0001). The difference in PFS was seen in the ER+/PR+/HER2- (“luminal A”) subgroup (p=.002) but not ER+/PR-/HER2- (“luminal B”) (p=0.129), and in the post-menopausal ER+/HER2- subgroup (p=.004) but not pre/perimenopausal ER+/HER2- (p=.150). On multivariate analysis, racial differences in PFS (p=.055) and OS (p=.052) were maintained in the luminal A postmenopausal subgroup. Conclusions: In a cohort of breast cancer patients black women had worse survival. This disparity was driven by (1) a higher proportion of ER- and TN tumors in the black women and (2) worse outcome of similarly treated post-menopausal black women with luminal A breast cancer. The efficacy of various types of endocrine therapy must be examined in the setting of racial diversity.
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560
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Zhang F, Chen L, Qin J, Zhao W, Wu P. A novel gene with a vWD domain and three Kazal-type domains: Molecular cloning and expression in the ovary of the oriental river prawn, Macrobrachium nipponense. RUSS J GENET+ 2011. [DOI: 10.1134/s1022795411090183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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561
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Zhang F, Chen L, Qin J, Zhao W, Wu P. A novel gene with a vWD domain and three Kazal-type domains: molecular cloning and expression in the ovary of the oriental river prawn, Macrobrachium nipponense. GENETIKA 2011; 47:1190-1195. [PMID: 22117403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel gene encoding avon Willebrand factor D (vWD) domain and three Kazal-type domains was firstly indentified from the ovary of the oriental river prawn Macrobrachium nipponense and this gene was named as MnvWD-Kazal. Bioinformatics analyses showed that this gene encodes a protein of 857 amino acids with a predicted molecular mass of 92.7 kDa. Real-time quantitative PCR (RT-QPCR) analyses revealed that the level of MnvWD-Kazal mRNA expression varied in the developing ovary and substantially differed between other tissues. In the ovary, the level of MnvWD-Kazal expression gradually increased from the perinucleolus (PN) stage to the yolk granule (YG) stage, and then abruptly decreased at the sexual maturation (MA) stage. The maximum expression occurred in the YG stage and the minimum was at the paracmasis (PM) stage. The expression level of MnvWD-Kazal in the intestine was much higher than that in other tissues. The differential expressions of MnvWD-Kazal at different stages of the ovary suggest that this novel gene may play a critical role in the oocyte maturation of M. nipponense.
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562
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Zhou WW, Zhuang RZ, Zhao W, Wang GF, Zhang LZ, Ma JG, Bao X, Wang FW, Chen YH. Second harmonic generation in Na3Gd2(BO3)3 crystals. CRYSTAL RESEARCH AND TECHNOLOGY 2011. [DOI: 10.1002/crat.201100077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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563
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Zhang H, Zhou Y, Ding H, Wang W, Zhao W, Hou J, Chen X. PP-245 The clinical characteristics and epidemiological features of 30 dengue fever cases from a local outbreak in Dongguan City Southern China. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60395-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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564
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Wang J, Zhou X, Zhu J, Gu Y, Zhao W, Zou J, Guo Z. GO-function: deriving biologically relevant functions from statistically significant functions. Brief Bioinform 2011; 13:216-27. [DOI: 10.1093/bib/bbr041] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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565
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Zhu AL, Zhao W, Yin H, Shan TL, Zhu CX, Yang X, Hua XG, Cui L. Isolation and characterization of canine astrovirus in China. Arch Virol 2011; 156:1671-5. [DOI: 10.1007/s00705-011-1022-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2011] [Accepted: 05/04/2011] [Indexed: 12/01/2022]
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566
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Byrd JC, Blum KA, Burger JA, Coutre SE, Sharman JP, Furman RR, Flinn IW, Grant BW, Richards DA, Zhao W, Heerema NA, Johnson AJ, Izumi R, Hamdy A, O'Brien SM. Activity and tolerability of the Bruton's tyrosine kinase (Btk) inhibitor PCI-32765 in patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL): Interim results of a phase Ib/II study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6508] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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567
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Bertino EM, Zhao W, Villalona-Calero MA, Abdel Karim NF, Shilo K, Otterson GA. EML4-ALK in NSCLC: The OSU Experience. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e18014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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568
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Viswanathan S, Wesolowski R, Layman RM, Alejandra G, Miller B, Chalmers JJ, Bejastani S, Zhao W, Pierluigu G, Cotrill J, Phelps MA, Schaaf LJ, Geyer SM, Hall N, Knopp MV, Shapiro CL, Villalona-Calero MA, Chen A, Grever MR, Ramaswamy B. A phase I dose-escalation study of ABT-888 (veliparib) in combination with carboplatin in HER2-negative metastatic breast cancer (MBC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.tps106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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569
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Suzuki T, Lee CH, Chen M, Zhao W, Fu SY, Qi JJ, Chotkowski G, Eisig SB, Wong A, Mao JJ. Induced migration of dental pulp stem cells for in vivo pulp regeneration. J Dent Res 2011; 90:1013-8. [PMID: 21586666 DOI: 10.1177/0022034511408426] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Dental pulp has intrinsic capacity for self-repair. However, it is not clear whether dental pulp cells can be recruited endogenously for regenerating pulp tissues, including mineralizing into dentin. This work is based on a hypothesis that dental pulp stem/progenitor cells can be induced to migrate by chemotactic cytokines and act as endogenous cell sources for regeneration and mineralization. Dental stem cells (DSCs) were isolated from adult human tooth pulp and seeded on the surfaces of 3D collagen gel cylinders that were incubated in chemically defined media with stromal-derived factor-1α (SDF1), basic fibroblast growth factor (bFGF), or bone morphogenetic protein-7 (BMP7). Significantly more cells were recruited into collagen gel by SDF1 or bFGF than without cytokines in 7 days, whereas BMP7 had little effect on cell recruitment. BMP7, however, was highly effective, equally to dexamethasone, in orchestrating mineralization of cultured DSCs. Cell membrane receptors for SDF1, bFGF, and BMP7 were up-regulated in treated DSCs. Upon in vivo delivery, bFGF induced re-cellularization and re-vascularization in endodontically treated human teeth implanted into the dorsum of rats. Thus, endogenous dental pulp cells, including stem/progenitor cells, may be recruited and subsequently differentiated by chemotaxis of selective cytokines in the regeneration of dental pulp.
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570
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Zhao W, Hua XG, Yuan L, Cui L, Shan TL, Dai XQ, Zhu AL, Yu Y, Zhu CX, Yang ZB. Sequence analyses of the representative Chinese-prevalent strain of avian nephritis virus in healthy chicken flocks. Avian Dis 2011; 55:65-9. [PMID: 21500638 DOI: 10.1637/9506-081810-reg.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Avian nephritis virus (ANV), which belongs to the Astroviridae family, has been associated with acute nephritis in chickens. Cases of ANV infection have been recorded in Japan and in several European countries. However, related studies have never been performed in China. Thus, this study isolated ANV in Chinese chicken flocks. ANV RNA was detected by reverse transcription-PCR in stool samples collected from healthy layer chickens in the Sichuan Province of China in 2009. Of the 192 stool specimens collected, 32.3% (62/192) were positive for ANV infection. The whole genome of ANV-Sichuan54, the first representative Chinese strain, was 6941 nucleotides in length, including the 5' untranslated region, three open reading frames (ORFs), a 3' UTR, and a poly-(A) tail. Comparative and phylogenetic analyses based on partial RNA-dependent RNA polymerase (ORF1b) demonstrated that the majority of ANV investigations were more closely related to the U.S. ANV strain (DQ324827-324836) than to the G-4260 (AB033998).
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571
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Panoff JE, Hurley J, Takita C, Reis IM, Zhao W, Sujoy V, Gomez CR, Jorda M, Koniaris L, Wright JL. Risk of locoregional recurrence by receptor status in breast cancer patients receiving modern systemic therapy and post-mastectomy radiation. Breast Cancer Res Treat 2011; 128:899-906. [PMID: 21475999 DOI: 10.1007/s10549-011-1495-1] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Accepted: 03/29/2011] [Indexed: 11/30/2022]
Abstract
We assessed differences in locoregional outcome based on receptor status combinations in a cohort of stage II-III breast cancer patients treated with modern trimodality therapy. Medical records of 582 consecutively treated patients receiving post-mastectomy radiation (PMRT) between 1/1999 and 12/2009 were reviewed. Rate of local regional recurrence (LRR) was estimated by the method of cumulative incidence allowing for competing risks. The effect of prognostic factors was examined by Gray's test and by Fine and Gray's modeling approach. Median follow-up was 44.7 months. Five-year progression-free survival (PFS) was 73.9% and overall survival (OS) was 84%. The cumulative 5-year incidence of LRR as first site of failure was 6.2% (95% CI 4.2-8.7). Five-year cumulative incidence of LRR was 8.6 versus 4.4% for estrogen receptor (ER) negative versus ER positive (P = 0.017), 8.5 versus 3.4% for progesterone receptor (PR) negative versus PR positive (P = 0.011), and 1.7 versus 7.5% for HER2 positive (86% received trastuzamab) versus HER2 negative (P = 0.032). Five-year cumulative incidence of LRR was 11.8% for the triple negative subtype and 3.9% for other receptor combinations (P < 0.001). Among patients whose disease is ER positive, 5-year LRR rate was 7.8 versus 3.4% for PR negative versus PR positive (P = 0.130). The prognostic value of the triple negative and HER2 negative subtypes was maintained on multivariate analysis. In the era of HER-2 targeted therapy, tumors that are HER-2 over expressing and are treated with trastuzumab have a very low rate of LRR. ER negative, PR negative, and triple negative status are associated with increased risk of LRR.
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572
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Zhao W, Zhao Z, Russell MW. Characterization of antigen-presenting cells induced by intragastric immunization with recombinant chimeric immunogens constructed from Streptococcus mutans AgI/II and type I or type II heat-labile enterotoxins. Mol Oral Microbiol 2011; 26:200-9. [PMID: 21545697 DOI: 10.1111/j.2041-1014.2011.00608.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: 11/30/2022]
Abstract
Intragastric (i.g.) immunization with recombinant chimeric proteins constructed from the saliva-binding region (SBR) of Streptococcus mutans surface antigen AgI/II and the A2/B subunits of enterobacterial heat-labile enterotoxins has been successfully used to induce salivary and circulating antibodies against S. mutans that have protective potential against dental caries. To investigate the mode of action of these vaccine constructs, mice were immunized i.g. with chimeric proteins constructed from SBR and cholera toxin (CT) or the type II enterotoxins of Escherichia coli, LT-IIa and LT-IIb. Antigen-presenting cells (APC) in Peyer's patches (PP) and mesenteric lymph nodes (MLN) were characterized by flow cytometry. Compared with immunization with SBR alone, chimeric proteins SBR-LTIIaA2/B and SBR-LTIIbA2/B increased the number of B cells and macrophages in PP and diminished B cell numbers in MLN, whereas SBR-CTA2/B diminished the numbers of B cells and macrophages in PP and MLN. Immunization with all three chimeric proteins led to upregulation of MHC class II molecules and co-stimulatory receptors CD40, CD80, and CD86 especially on dendritic cells in PP and also on APC in MLN. The results provide a molecular basis for the enhanced immune responses induced by chimeric proteins compared with uncoupled antigen, and for differential responses to chimeric proteins based on CT or type II enterotoxins.
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573
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Jin GQ, Su DK, Xie D, Zhao W, Liu LD, Zhu XN. Distinguishing benign from malignant parotid gland tumours: low-dose multi-phasic CT protocol with 5-minute delay. Eur Radiol 2011; 21:1692-8. [PMID: 21547526 PMCID: PMC3128264 DOI: 10.1007/s00330-011-2101-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 02/12/2011] [Accepted: 02/18/2011] [Indexed: 12/13/2022]
Abstract
Objectives To explore the percentage enhancement wash-out ratio (PEW) and relative PEW (RPEW) of low-dose multi-phasic computed tomography (CT) in distinguishing benign from malignant parotid gland tumours. Methods This study was approved by the ethics committee, and informed patient consent was obtained. 51 patients with parotid tumours proven by histopathology received CT, including 18 with pleomorphic adenomas, 14 with Warthin’s tumours and 19 with malignant tumours. Size and attenuation of parotid tumours were measured. Compared with 5-min attenuation, the 30-s and 90-s PEW (PEW30, PEW90) and RPEW (RPEW30, RPEW90) were calculated. Results There was a significant difference in PEW30, RPEW30, PEW90 and RPEW90 in the parotid neoplasms groups (P < 0.01), and statistical significance existed simultaneously in pleomorphic adenomas vs malignant tumours and Warthin’s tumours vs malignant tumours according to SNK-q test. The optimal diagnosis results of malignancy with 100% specificity (32/32) was obtained by using a combination of the following criteria: −70% > PEW30 < 36%, −30% > PEW30 < 19%, PEW90 > 12%, and the sensitivity (74%) for diagnosis of malignancy was yield. Conclusions Wash-out ratio may assist in differentiating the benign from malignant parotid gland tumours. Combining the percentage of enhanced wash-out ratios of CT protocols can yield diagnostic results for malignancy.
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574
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Zhu C, Shan T, Cui L, Luo X, Liu Z, Tang S, Liu Z, Yuan C, Lan D, Zhao W, Hua X. Molecular detection and sequence analysis of feline Torque teno virus (TTV) in China. Virus Res 2011; 156:13-6. [DOI: 10.1016/j.virusres.2010.12.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Revised: 12/05/2010] [Accepted: 12/10/2010] [Indexed: 11/29/2022]
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575
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SONG Y, Qu C, Srivastava K, Yang N, Zhao W, Li X. Persistent Protection by FAHF-2 in Food Allergy: Effects on Mast cells/Basophils, and Identification of Active Compounds. J Allergy Clin Immunol 2011. [DOI: 10.1016/j.jaci.2010.12.565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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