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骨唾液酸蛋白与乳腺癌细胞黏附性的相关性

The Association Between Bone Sialoprotein and Adhesion of Breast Cancer Cells
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摘要 [目的]探讨骨唾液酸蛋白(BSP)与人乳腺癌细胞黏附性的相关性。[方法]构建pCDNA3.1-myc-hisA(+)-BSP真核表达载体,在COS7细胞中表达并纯化BSP全长蛋白。以纤黏连蛋白、胶原和重组BSP蛋白包被96酶标板,细胞黏附实验检测MCF-7和MDA-MB-231在上述基质的黏附性。构建BSP正义和反义表达载体,及同pCDNA3.1(-)空载体稳定转染人乳腺癌细胞MCF-7获得稳定细胞株。细胞黏附实验检测不同BSP表达水平的各组MCF-7稳定细胞株在纤黏连蛋白(FN)和胶原(collagen)上的黏附性。免疫细胞化学检测各组MCF-7稳定细胞株中E-cadherin的表达。[结果]成功表达人骨唾液酸蛋白并证实其具有黏附性。分析不同BSP表达水平的乳腺癌细胞在不同基质上黏附性,结果显示转染正义BSP的MCF-7细胞在不同基质上的OD595值(FN:1.93±0.06;collagen:1.82±0.15)显著高于反义组(FN:0.83±0.19;collagen:0.89±0.08)、空载体转染组(FN:1.49±0.18;collagen:1.44±0.09)和亲本细胞组(FN:1.52±0.27;collagen:1.42±0.12),有统计学差异(P<0.05)。转染正义BSP的MCF-7细胞中E-cadherin的表达与其它组别相比明显降低。[结论]BSP以RGD序列介导细胞黏附,其表达水平与乳腺癌细胞黏附性相关。
出处 《中国肿瘤》 CAS 2010年第7期477-482,共6页 China Cancer
基金 国家自然科学基金(30171089)
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参考文献10

  • 1Ganss B, Kim RH, Sodek J. Bone sialoprotein [J]. Crit Rev Oral Biol Med, 1999, 10(1): 79-98.
  • 2Bellahcene A, Castronovo V, Ogbureke KU, et al. Small integrin-binding ligand Nqinked glyeoproteins (SIB- LINGs): multifunetional proteins in cancer[J].Nat Rev Cancer,2008,8(3):212-226.
  • 3Ogata Y. Bone sialoprotein and its transcriptional regulatory mechanism[J]. J Periodontal Res, 2008, 43(2):127-135.
  • 4Wahregny D, Bellahcene A, de Lmal X. Increased expression of bone sialoprotein in bone metastases compared with visceral metastases in human breast and prostate cancers [J]. J Bone Miner Res, 2000, 15(5):834-843.
  • 5Zhang JH, Wang J, Tang J, et al. Bone sialoprotein promotes bone metastasis of a non-bone-seeking clone of human breast cancer cells [J]. Anticancer Res, 2004, 24(3a): 1361-1368.
  • 6Tu Q, Zhang J, Fix A, et al. Targeted overexpression of BSP in osteoclasts promotes bone metastasis of breast cancer cells[J]. J Cell Physiol, 2009, 218 (1):135-145.
  • 7Byzova TV, Kim W, Midura RJ, et al. Activation of integrin alpha(v)beta (3) regulates cell adhesion and migration to bone sialoprotein [J]. Exp Cell Res, 2000, 254(2):299-308.
  • 8Pecheur I, Peyruchaud O, Serre CM, et al. Integrin alpha(v)beta3 expression confers on tumor cells a greater propensity to metastasize to bone [J]. FASEB J, 2002, 16(10): 1266-1268.
  • 9Gordon JA, Sodek J, Hunter GK, et al. Bone sialoprotein stimulates focal adhesion-related signaling pathways: role in migration and survival of breast and prostate cancer cells [J]. J Cell Biochem, 2009, 107(6):1118-1128.
  • 10Gross JC, Sehreiner A, Engels K, et al. E-eadherin surface levels in epithelial growth factor-stimulated cells depend on adherens junction protein shrew-1[J]. Mol Biol Cell,2009, 20(15):3598-3607.

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