SAA在鼻咽癌CNE-2细胞中的表达及其对细胞生长、凋亡的影响SAA protein expression in CNE-2 cells and its effect on cell growth and apoptosis
江青山;邓文蓉;肖桃源;沈宝茗;
摘要(Abstract):
目的观察血清淀粉样蛋白A(SAA)在鼻咽癌CNE-2细胞中的表达及其对细胞生长、凋亡的影响。方法构建针对SAA基因的shRNA表达干扰载体,筛选出有效的小干扰RNA(siRNA)序列,利用siRNA技术和高表达载体分别沉默及过表达SAA,检测SAA表达对鼻咽癌CNE-2细胞的生长及凋亡的影响。结果 pGPU6/GFP/Neo-SAA1-homo-482和pCD3.1(+)-SAA在鼻咽癌CNE-2细胞中可有效地沉默及过表达SAA基因的mRNA和蛋白,且与对照组比较差异具有统计学意义(P均<0.05);SAA增高可促进鼻咽癌CNE-2细胞生长,降低可促进鼻咽癌CNE-2细胞凋亡。结论在SAA基因的shRNA表达干扰载体中,只有pGPU6/GFP/Neo-SAA1-homo-482可有效沉默SAA在鼻咽癌CNE-2细胞中的表达;SAA增高可促进鼻咽癌CNE-2细胞生长,SAA沉默可促进鼻咽癌CNE-2细胞凋亡。
关键词(KeyWords): 鼻咽肿瘤;血清淀粉样蛋白A;表达载体;干扰载体
基金项目(Foundation): 湖南省卫生厅科研基金资助项目(B2010-047)
作者(Author): 江青山;邓文蓉;肖桃源;沈宝茗;
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DOI:
参考文献(References):
- [1]Uhlar CM,Whitehead AS.Serum amyloid A,the major vertebrate acute-phase reactant[J].Eur J Biochem,1999,265(2):501-523.
- [2]Malle E,Sodin-Semrl S,Kovacevic A.Serum amyloid A:an acute-phase protein involved in tumour pathogenesis[J].Cell Mol Life Sci,2009,66(1):9-26.
- [3]Moshkovskii SA.Why do cancer cells produce serum amyloid A acute-phase protein[J].Biochemistry(Mosc),2012,77(4):339-341.
- [4]De Santo C,Arscott R,Booth S,et al.Invariant NKT cells modulate the suppressive activity of IL-10-secreting neutrophils differentiated with serum amyloid A[J].Nat Immunol,2010,11(11):1039-1046.
- [5]Liu C,Pan C,Shen J,et al.Identification of serum amyloid A in the serum of gastric cancer patients by protein expression profiling[J].Oncol Lett,2012,3(6):1259-1262.
- [6]Chang PY,Kuo YB,Wu TL,et al.Association and prognostic value of serum inflammation markers in patients with leukoplakia and oral cavity cancer[J].Clin Chem Lab Med,2012,15:1-10.
- [7]Zhang G,Sun X,Lv H,et al.Serum amyloid A:A new potential serum marker correlated with the stage of breast cancer[J].Oncol Lett,2012,3(4):940-944.
- [8]Urieli-Shoval S,Finci-Yeheskel Z,Dishon S,et al.Expression of serum amyloid a in human ovarian epithelial tumors:implication for a role in ovarian tumorigenesis[J].J Histochem Cytochem,2010,58(11):1015-1023.
- [9]Shinriki S,Ueda M,Ota K,et al.Aberrant expression of serum amyloid A in head and neck squamous cell carcinoma[J].J Oral Pathol Med,2010,39(1):41-47.
- [10]Ramankulov A,Lein M,Johannsen M,et al.Serum amyloid A as indicator of distant metastases but not as early tumor marker in patients with renal cell carcinoma[J].Cancer Lett,2008,269(1):85-92.
- [11]Mullan RH,Bresnihan B,Golden-Mason L,et al.Acute-phase serum amyloid A stimulation of angiogenesis,leukocyte recruitment,and matrix degradation in rheumatoid arthritis through an NF-kappaB-dependent signal transduction pathway[J].Arthritis Rheum,2006,54(1):105-114.
- [12]O'Hara R,Murphy EP,Whitehead AS,et al.Local expression of the serum amyloid A and formyl peptide receptor-like 1 genes in synovial tissue is associated with matrix metalloproteinase production in patients with inflammatory arthritis[J].Arthritis Rheum,2004,50(6):1788-1799.
- [13]Preciado-Patt L,Hershkoviz R,Fridkin M,et al.Serum amyloid A binds specific extracellular matrix glycoproteins and induces the adhesion of resting CD4+T cells[J].J Immunol,1996,156(3):1189-1195.
- [14]Michaeli A,Finci-Yeheskel Z,Dishon S,et al.Serum amyloid A enhances plasminogen activation:implication for a role in colon cancer[J].Biochem Biophys Res Commun,2008,368(2):368-373.