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Shortest Path Analyses in the Protein-Protein Interaction Network of NGAL (Neutrophil Gelatinase-associated Lipocalin) Overexpression in Esophageal Squamous Cell Carcinoma

  • Du, Ze-Peng;Wu, Bing-Li;Wang, Shao-Hong;Shen, Jin-Hui;Lin, Xuan-Hao;Zheng, Chun-Peng;Wu, Zhi-Yong;Qiu, Xiao-Yang;Zhan, Xiao-Fen;Xu, Li-Yan;Li, En-Min
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권16호
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    • pp.6899-6904
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    • 2014
  • NGAL (neutrophil gelatinase-associated lipocalin) is a novel cancer-related protein involves multiple functions in many cancers and other diseases. We previously overexpressed NGAL to analyze its role in esophageal squamous cell carcinoma (ESCC). In this study, a protein-protein interaction (PPI) was constructed and the shortest paths from NGAL to transcription factors in the network were analyzed. We found 28 shortest paths from NGAL to RELA, most of them obeying the principle of extracellular to cytoplasm, then nucleus. These shortest paths were also prioritized according to their normalized intensity from the microarray by the order of interaction cascades. A systems approach was developed in this study by linking differentially expressed genes with publicly available PPI data, Gene Ontology and subcellular localizaton for the integrated analyses. These shortest paths from NGAL to DEG transcription factors or other transcription factors in the PPI network provide important clues for future experimental identification of new pathways.

Establishing a Nomogram for Stage IA-IIB Cervical Cancer Patients after Complete Resection

  • Zhou, Hang;Li, Xiong;Zhang, Yuan;Jia, Yao;Hu, Ting;Yang, Ru;Huang, Ke-Cheng;Chen, Zhi-Lan;Wang, Shao-Shuai;Tang, Fang-Xu;Zhou, Jin;Chen, Yi-Le;Wu, Li;Han, Xiao-Bing;Lin, Zhong-Qiu;Lu, Xiao-Mei;Xing, Hui;Qu, Peng-Peng;Cai, Hong-Bing;Song, Xiao-Jie;Tian, Xiao-Yu;Zhang, Qing-Hua;Shen, Jian;Liu, Dan;Wang, Ze-Hua;Xu, Hong-Bing;Wang, Chang-Yu;Xi, Ling;Deng, Dong-Rui;Wang, Hui;Lv, Wei-Guo;Shen, Keng;Wang, Shi-Xuan;Xie, Xing;Cheng, Xiao-Dong;Ma, Ding;Li, Shuang
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권9호
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    • pp.3773-3777
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    • 2015
  • Background: This study aimed to establish a nomogram by combining clinicopathologic factors with overall survival of stage IA-IIB cervical cancer patients after complete resection with pelvic lymphadenectomy. Materials and Methods: This nomogram was based on a retrospective study on 1,563 stage IA-IIB cervical cancer patients who underwent complete resection and lymphadenectomy from 2002 to 2008. The nomogram was constructed based on multivariate analysis using Cox proportional hazard regression. The accuracy and discriminative ability of the nomogram were measured by concordance index (C-index) and calibration curve. Results: Multivariate analysis identified lymph node metastasis (LNM), lymph-vascular space invasion (LVSI), stromal invasion, parametrial invasion, tumor diameter and histology as independent prognostic factors associated with cervical cancer survival. These factors were selected for construction of the nomogram. The C-index of the nomogram was 0.71 (95% CI, 0.65 to 0.77), and calibration of the nomogram showed good agreement between the 5-year predicted survival and the actual observation. Conclusions: We developed a nomogram predicting 5-year overall survival of surgically treated stage IA-IIB cervical cancer patients. More comprehensive information that is provided by this nomogram could provide further insight into personalized therapy selection.

Association Analysis of Monocyte Chemotactic Protein-3 (MCP3) Polymorphisms with Asthmatic Phenotypes

  • Park, Byung-Lae;Kim, Lyoung-Hyo;Choi, Yoo-Hyun;Cheong, Hyun-Sub;Park, Hae-Sim;Hong, Soo-Jong;Choi, Byoung-Whui;Lee, June-Hyuk;Uh, Soo-Taek;Park, Choon-Sik;Shin, Hyoung-Doo
    • BMB Reports
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    • 제38권1호
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    • pp.77-81
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    • 2005
  • The monocyte chemotactic protein-3 (MCP3), on chromosome 17q11.2-q12, is a secreted chemokine, which attracts macrophages during inflammation and metastasis. In an effort to discover additional polymorphism(s) in genes whose variant(s) have been implicated in asthma, we scrutinized the genetic polymorphisms in MCP3 to evaluate it as a potential candidate gene for asthma host genetic study. By direct DNA sequencing in twenty-four individuals, we identified four sequence variants within the 3 kb full genome including 1,000bp promoter region of MCP3; one in promoter region (-420T>C), three in intron (+136C>G, +563C>T, +984G>A) respectively. The frequencies of those four SNPs were 0.020 (-420T>C), 0.038 (+136C>G), 0.080 (+563C>T), 0.035 (+984G>A), respectively, in Korean population (n = 598). Haplotypes, their frequencies and linkage disequilibrium coefficients (|D'|) between SNP pairs were estimated. The associations with the risk of asthma, skin-test reactivity and total serum IgE levels were analyzed. Using statistical analyses for association of MCP3 polymorphisms with asthma development and asthma-related phenotypes, no significant signals were detected. In conclusion, we identified four genetic polymorphisms in the important MCP3 gene, but no significant associations of MCP3 variants with asthma phenotypes were detected. MCP3 variation/haplotype information identified in this study will provide valuable information for future association studies of other allergic diseases.