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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 符文美 | |
| dc.contributor.author | Wan-Jung Tsai | en |
| dc.contributor.author | 蔡宛蓉 | zh_TW |
| dc.date.accessioned | 2021-06-15T01:35:57Z | - |
| dc.date.available | 2009-09-15 | |
| dc.date.copyright | 2009-09-15 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-07-16 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43080 | - |
| dc.description.abstract | Part Ⅰ: Role of Annexin A7 in the cell migration of cancer cells
Approximately 90% of cancer death arises from the metastatic spread of primary tumors. Cell migration is one of the key steps in tumor spreading. Therefore, the identification of molecules and characterization of the mechanisms regulating cell migration is essential to understand metastasis development. Annexin A7, as a Ca2+-binding protein, has been implicated in the regulation of intracellular calcium homeostasis in several cell types and species. Annexin A7 has recently been associated with tumor metastasis in many different tumor types. We reported here that knock down of annexin A7 expression by shRNA increased the cell migration of both U251 human giloma cells and 4T1 mouse mammary cells. In addition, the increase of cell migration could be reversed by treatment with a pharmacological inhibitor of store-operated calcium channels. On the other hand, we found that the loss of annexin A7 altered the phosphorylation levels of Akt, with increased pAkt in U251 annexin-A7 knockdown stable clone and decreased pAkt in 4T1 annexin-A7 knockdown stable pool. Treatment with PI3 kinase inhibitor (LY294002) decreased the cell migration of U251 annexin-A7 knockdown stable clone; however, it did not affect the cell migration of 4T1 annexin-A7 kmockdown stable pool. Our data demonstrate a role for annexin A7 in cell migration and suggest that intracellular Ca2+ levels and phosphorylation of Akt may be involved in the mechanism of the increase of cell migration by knock down of annexin A7. Part Ⅱ : Regulation of Interleukin-10 expression by neuregulin-1 in neurons Schizophrenia is a severe and highly debilitating mental disorder in which multiple genes and environmental factors interact to cause the schizophrenia phenotype. Neuregulin-1 (NRG1) is one of the candidate genes which is identified in a genome-wide scan of schizophrenia families performed in Iceland in 2002. Here we found that NRG +/- mutant mice expressed less Interleukin-10 mRNA and exogenous application of NRG1 increased IL-10 mRNA expression in SH-SY5Y human neuroblastoma cells. The erbB-specific inhibitor PD158780 decreased NRG1-induced IL-10 mRNA expression. Pharmacological inhibition of ERK activation also inhibited NRG1-induced IL-10 mRNA expression. On the other hand, we found that exogenous application of IL-10 increased the number of primary dendrite, cover area, total dendritic length, and branching in cultured cortex neurons at Day2. IL-10 dose-dependently increased synapsin protein expression in cultured cortex neurons at Day 6-7. Our results suggest that IL-10 mRNA expression induced by NRG1 in SH-SY5Y cells requires erbB tyrosine kinases and pERK singnaling networks. In addition, our results suggest that IL-10 may play a role in neurite outgrowth and synaptogenesis. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T01:35:57Z (GMT). No. of bitstreams: 1 ntu-98-R95443002-1.pdf: 2381919 bytes, checksum: d75fcdf35e9dfd4d5ad8c42dbeb3fb01 (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | 誌謝.................................................................................... i
Abbreviations..................................................................... v Chinese Abstract.................................................................vii English Abstract…............................................................. ix Part Ⅰ: Role of Annexin A7 in the cell migration of cancer cells .................................................. 1 1-1 Introduction..................................................................1 1-2 Materials and Methods..................................................10 1-3 Results..........................................................................14 1-4 Discussion.....................................................................19 1-5 Figures...........................................................................22 Part Ⅱ: Regulation of Interleukin-10 expression by neuregulin-1 in neurons............................36 2-1 Introduction................................................................... 36 2-2 Materials and Methods....................................................42 2-3 Results............................................................................ 46 2-4 Discussion......................................................................49 2-5 Figures...........................................................................51 References........................................................................... 60 圖 目 錄 Part Ⅰ: Role of Annexin A7 in the cell migration of cancer cells Fig. 1-1-1 The main steps in the formation of a metastasis................................................... 6 Table 1-1-1 Regulation of metastasis...................................................................................... 7 Fig. 1-1-2 Rho, Rac, and Cdc42 control the assembly and organization of the actin cytoskeleton............................................................... 8 Fig. 1-1-3 Structural organization of different annexins............................................................9 Fig. 1-3-1. Knockdown of annexin A7 protein expression by human annexin-A7-shRNA in U251 cells.......................................................22 Fig. 1-3-2. Increase of migration of U251 glioma cells by the transfection of human annexin- A7-shRNA..................................................... 23 Fig. 1-3-3. The increase of transwell migration by annexin-A7 knockdown is antagonized by SKF96365 in U251 cells..................................24 Fig. 1-3-4. Decrease of stress fiber by the knockdown of annexin-A7 in U251 cells................. 25 Fig. 1-3-5. Upregulation of Akt phosphorylation by the knockdown of annexin-A7 in U251 cells.................................................................. 26 Fig. 1-3-6. Effect of PI3K/Akt inhibitor LY294002 on the transwell migration of U251 cells.... 28 Fig. 1-3-7. Knockdown of annexin A7 protein expression by mouse annexin-A7-shRNA in 4T1-luc cells......................................................30 Fig. 1-3-8. Knockdown of annexin-A7-induced increase of transwell migration is antagonized by SKF96365 in 4T1 cells............................. 31 Fig. 1-3-9. Inhibition of Akt phosphorylation by the knockdown of annexin-A7 in 4T1 cells.......................................................................... 32 Fig. 1-3-10. Knockdown of annexin A7 increases resistance to Akt inhibition in 4T1 cells....... 34 Part Ⅱ: Regulation of Interleukin-10 expression by neuregulin-1 in neurons Fig. 2-1-1 Canonical NRG1–ErbB signalling pathways............................................................... 39 Fig. 2-1-2 Roles of NRG1 in neural development............................................................................ 40 Table 2-1-1 Cytokine profiles in drug-naïve or drug –free schizophrenic patients........................... 41 Fig 2-3-1. NRG +/- mutant mice express less IL-10 mRNA............................................................ 51 Fig 2-3-2. NRG-1 increases IL-10 mRNA in SH-SY5Y cells in a dose-dependent manner............. 52 Fig 2-3-3. NRG-1 increases IL-10 mRNA in SH-SY5Y cells in a time-dependent manner............. 53 Fig 2-3-4. NRG-1 increases IL-10 mRNA expression in SH-SY5Y via ErbB receptor.................... 54 Fig 2-3-5. NRG-1-induced increase of IL-10 mRNA expression in SH-SY5Y is antagonized by ERK inhibitor PD98059................................... 55 Fig. 2-3-6. The morphology of cultured cortical neurons treated with recombinant IL-10.............. 56 Fig. 2-3-7. Morphometric analysis of cultured cortical neurons treated with recombinant IL-10.... 57 Fig. 2-3-8. Recombinant IL-10 increases synapsin protein expression in cultured cortical neurons.................................................................... 59 | |
| dc.language.iso | en | |
| dc.subject | annexin A7 | zh_TW |
| dc.subject | 初級大腦皮質神經細胞 | zh_TW |
| dc.subject | 人類神經母細胞細胞株SH-SY5Y | zh_TW |
| dc.subject | 介白質-10 | zh_TW |
| dc.subject | NRG1 | zh_TW |
| dc.subject | 老鼠乳腺癌 | zh_TW |
| dc.subject | 人類膠細胞瘤 | zh_TW |
| dc.subject | 細胞轉移 | zh_TW |
| dc.subject | mouse mammary cell | en |
| dc.subject | SH-SY5Y | en |
| dc.subject | primary cortex neuronal culture | en |
| dc.subject | NRG1 | en |
| dc.subject | annexin A7 | en |
| dc.subject | cell migration | en |
| dc.subject | human glioma cell | en |
| dc.subject | Interleukin-10 | en |
| dc.title | PartⅠ: 探討Annexin A7對癌細胞轉移的影響;PartⅡ: Neuregulin在神經細胞促進Interleukin-10釋放之作用 | zh_TW |
| dc.title | PartⅠ: Role of Annexin A7 in the cell migration of cancer cells ; PartⅡ: Regulation of Interleukin-10 expression by neuregulin-1 in neurons | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 楊春茂,嚴震東,簡伯武,尹相姝 | |
| dc.subject.keyword | annexin A7,細胞轉移,人類膠細胞瘤,老鼠乳腺癌,NRG1,介白質-10,人類神經母細胞細胞株SH-SY5Y,初級大腦皮質神經細胞, | zh_TW |
| dc.subject.keyword | annexin A7,cell migration,human glioma cell,mouse mammary cell,NRG1,Interleukin-10,SH-SY5Y,primary cortex neuronal culture, | en |
| dc.relation.page | 72 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2009-07-17 | |
| dc.contributor.author-college | 醫學院 | zh_TW |
| dc.contributor.author-dept | 藥理學研究所 | zh_TW |
| 顯示於系所單位： | 藥理學科所 | |
文件中的檔案：
| 檔案 | 大小 | 格式 | |
|---|---|---|---|
| ntu-98-1.pdf 未授權公開取用 | 2.33 MB | Adobe PDF |
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