發明
美國
12/174,997
US 7,829,695 B2
專一性抑制葡萄糖調節蛋白-78(Grp78)表現之RNA干擾(RNAi)序列、抑制藥劑及抑制方法SPECIFIC GRP78 EXPRESSION-INHIBITION RNAi SEQUENCE, MEDICINE THEREOF AND METHOD THEREOF
長庚大學
2010/11/09
我們發現,GRP78在頭頸癌細胞內的表現量比非癌細胞高許多,且與臨床腫瘤大小及淋巴轉移分期相關,可作為評估頭頸癌嚴重程度之臨床應用。此外,本發明針對GRP78基因,設計一段可與GRP78分子產生互補作用的RNA干擾序列。RNA干擾(RNA inference,RNAi)是以一小段核甘酸序列,能和特定GRP78 mRNA產生互補,在送入細胞內作用後,經過細胞內酵素作用進而分解RNAi所對應的特定RNA,達到專一性抑制基因表現的功能。本發明之Grp78-RNAi可以專一性並有效地抑制GRP78表現,進而抑制頭頸癌之癌化過程,包含細胞生長和侵犯轉移,因此本發明將把此段序列申請專利。 We found that, Grp78 is highly expressed in the head neck cancer cell in comparison with non-cancer cells. This overexpression is correlated with the clinical pathological status, including T stage, N stage, overall stage, tumor depthand extra-capsular spread in lymph nodes, suggesting Grp78 can serve as a molecular marker in evaluation of the aggressiveness in head neck cancer. We further design a specific Grp78-RNAi sequence to modulate Grp78 expression. This sequence is proven can efficiently and specifically inhibit GRP78 expression leading to suppressing the oncogenic phenotype of head and neck cancer, including suppression cell growth, migration and invasion. We therefore apply pattern for the application of GRP78 molecule in head neck cancer and its specific RNAi sequence in suppressing oncogenesis.
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