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| 1 | Role of Epstein-Barr Virus Encoded Latent Membrane Protein 1 in the Carcinogenesis of Nasopharyngeal Carcinoma显示文摘Epstein-Barr virus (EBV)-encoded latent membrane protein 1 (LMP1) has been known to have oncogenic properties during latent infection in nasopharyngeal carcinoma (NPC). Our studies focused on the role of LMP1 in NPC, and showed that LMP1 triggers the NF-κB, AP-1 and STAT signaling pathways. Strikingly, LMP1 was found to mediate the formation of a new heterodimer between c-Jun and JunB. Also, we have identified JAK/STAT and PI-PLC-PKC activation triggered by LMP1 through upregulating the expression of JAK3 and enhancing the phosphorylation of STAT. The constitutive activation of these signaling cascades explains LMP1’s ability to induce such a diverse array of morphological and phenotypic effects in cells and provides insight into how LMP1 may induce cell transformation, in which multihit targeted genes in the downstream play an essential role. All signaling cascades triggered by LMP1 ultimately lead to the disruption of the cell cycle: the acceleration of G1/S phase and the arrest of G2/M phase. We also found that LMP1 induced the expression of hTERT and promoted cell immortalization. Importantly, by intervening physical intracellular signal transduction pathways and disturbing the progression of the cell cycle, LMP1, an important oncoprotein encoded by EBV, is thought to be a key modulator in the pathogenesis of NPC. Interfering LMP1 signaling could be a promising strategy to target the malignant phenotype of NPC. | Hui Zheng Lili Li Duosha Hu Xiyun Deng Ya Cao | 2007 | Cellular & Molecular Immunology2007，4，3： | 34 |
| 2 | Immunoglobulin Expression and Its Biological Significance in Cancer Cells显示文摘It is generally believed that the expression of a gene is restricted 'within the right place and at the right time'. This principle has long been considered applicable as well to the expression of immunoglobulin (Ig) lymphocytes of B cell lineage. However, increasing evidence has shown Ig 'paradoxically' expressed in malignant tumors of epithelial origin. We reviewed the recent progress in the study of cancer-derived Ig, and also discussed its mechanisms and possible functions, trying to arouse interest and attention to those working in the field of immunology and oncology. | Duosha Hu Hui Zheng Haidan Liu Ming Li Wei Ren Wei Liao Zhi Duan Lili Li Ya Cao | 2008 | Cellular & Molecular Immunology2008，5，5： | 7 |
| 3 | Heterogeneity of aberrant immunoglobulin expression in cancer cells显示文摘Accumulating evidence has shown that immunoglobulin(Ig)is‘unexpectedly’expressed by epithelial cancer cells and that it can promote tumor growth.The main purpose of this study was to explore the components of the cancerous Ig and its possible function.The presence of cancerous Ig in the Golgi apparatus was confirmed by immunofluorescence,indirectly suggesting that the cancerous Ig was processed and packaged in cancer cells.Western blot analysis and ELISA results indicated that cancer cells produced membrane Ig and secreted Ig into the supernatant fraction.The cancerous Ig consists of an a heavy chain and a k light chain.Finally,by analyzing the Ig components pulled down by protein A beads,the cancerous Ig was found to be structurally distinct from normal Ig.The cancerous Ig was truncated or aberrant.Although the underlying mechanism that causes the abnormalities has not been determined,our current discoveries strengthen our previous findings and promise fruitful future explorations. | Duosha Hu Zhi Duan Ming Li Yiqun Jiang Haidan Liu Hui Zheng Lili Li Ann M Bode Zigang Dong Ya Cao | 2011 | Cellular & Molecular Immunology2011，8，6： | 5 |
| 4 | Promotion of cell proliferation and inhibition of ADCC by cancerous immunoglobulin expressed in cancer cell lines显示文摘To explore the significance of cancerous immunoglobulin(Ig)in cancer cell growth,HeLa cervical cancer cells were stably transfected with small interfering RNA(siRNA)that specifically,efficiently and consistently silences the expression of heavy chain genes of all immunoglobulin isotypes.This stable cell line was used to examine cell viability,colony formation and tumor growth in athymic nude mice.The results of these experiments indicated that siRNA-mediated knockdown of cancerous Ig inhibited cell growth in vitro and suppressed tumor cell growth in immune-deficient nude mice in vivo.Similarly,this siRNA also inhibited the growth of MGC gastric cancer cells and MCF-7 breast cancer cells.Furthermore,the presence of cancerous Ig specifically reduced antibody-dependent cell-mediated cytotoxicity(ADCC)induced by an anti-human epithelial growth factor receptor(EGFR)antibody in a dose-dependent manner,suggesting that the cancerous Ig-Fc receptor interaction inhibits natural killer cell(or NK cell)effector function.The prevalent expression of Ig in human carcinomas and its capacity to promote growth and inhibit immunity might have important implications in growth regulation and targeted therapy for human cancers. | Ming Li Hui Zheng Zhi Duan Haidan Liu Duosha Hu Ann Bode Zigang Dong Ya Cao | 2012 | Cellular & Molecular Immunology2012，9，1： | 4 |
| 5 | Activation of the Ig la I promoter by the transcription factor Ets-1 triggers Ig lal-Cal germline transcription in epithelial cancer cells显示文摘 | Zhi Duan Hui Zheng San Xu Yiqun Jiang Haidan Liu Ming Li Duosha Hu Wei Li Ann M. Bode Zigang Dong Ya Cao | 2014 | Cellular & Molecular Immunology2014，11，2： | 3 |
| 6 | STAT3 activation induced by Epstein-Barr virus latent membrane protein1 causes vascular endothelial growth factor expression and cellular invasiveness via JAK3 And ERK signaling显示文摘 | Zhenlian Wang Feijun Luo Lili Li Lifang Yang Duosha Hu Xiaoqian Ma Zhongxin Lu Lunquan Sun Ya Cao | 2010 | European Journal of Cancer2010，，16： | 1 |
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