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材料研究学报  2015, Vol. 29 Issue (8): 627-633    DOI: 10.11901/1005.3093.2014.791
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不同铜含量钴铬合金的体外生物相容性
赵昕1,2,3,4,曹阳1,2,3,印准1,2,3,张光平5,任伊宾6,战德松1,2,3,4()
1. 中国医科大学口腔医学院修复二科 沈阳 110002
2. 中国医科大学口腔医学院中心实验室 沈阳 110002
3. 辽宁省口腔医学研究所 沈阳 110002
4. 辽宁省口腔疾病转化医学研究中心 沈阳 110002
5. 中国医科大学附属盛京医院口腔科 沈阳 110011
6. 中国科学院金属研究所 沈阳 110016
In Vitro Biocompatibility of Co-Cr Alloys with Different Content of Copper
Xin ZHAO1,2,3,4,Yang CAO1,2,3,Zhun YIN1,2,3,Guangping ZHANG5,Yibin REN6,Desong ZHAN1,2,3,4,*()
1. Department of Prosthetics, School of Stomatology, China Medical University, Shenyang 110002, China
2. Central Laboratory, School of Stomatology, China Medical University, Shenyang 110002, China
3. Liaoning Institute of Dental Research, Shenyang 110002, China
4. Liaoning Province Ord Diseases Translational Medicine Research Center, Shenyang 110002, China
5. Department of Stomatology, Sheng Jing Hospital of China Medical University, Shenyang 110011, China
6. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
引用本文:

赵昕,曹阳,印准,张光平,任伊宾,战德松. 不同铜含量钴铬合金的体外生物相容性[J]. 材料研究学报, 2015, 29(8): 627-633.
Xin ZHAO, Yang CAO, Zhun YIN, Guangping ZHANG, Yibin REN, Desong ZHAN. In Vitro Biocompatibility of Co-Cr Alloys with Different Content of Copper[J]. Chinese Journal of Materials Research, 2015, 29(8): 627-633.

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摘要: 

用CCK-8法和Annexin-V/PI双标记法研究了不同铜含量(质量分数, 下同)的钴铬合金和钴铬合金的体外生物相容性(包括L929细胞增殖和凋亡)的影响。结果表明, 4种合金的体外生物相容性按含1%铜的钴铬合金、含2%铜的钴铬合金、钴铬合金、含3%铜的钴铬合金的顺序递减; 其细胞毒性等级都为1级, 具有良好的体外生物相容性。

关键词 金属材料含铜钴铬合金细胞毒性细胞增殖细胞凋亡生物相容性    
Abstract

The in vitro biocompatibility (i.e. the cell proliferation and apoptosis of L929 cells) of 4 cast dental alloys (CoCrMo+1%Cu, CoCrMo+2%Cu, CoCrMo+3%Cu and CoCrMo) were evaluated by CCK-8 and Annexing-V/PI double marking methods to provide a biology reference in the clinical application of prosthodontics. Results show that the in vitro biocompatibility of 4 alloys decreases according to following sequence: CoCrMo+1%Cu, CoCrMo+2%Cu, CoCrMo and CoCrMo+3%Cu. However, the cytotoxicity grades of the 4 alloys are all ranked in level one, implying they are good enough in vitro biocompatibility.

Key wordsmetallic materials    copper-cobalt-chromium alloy    cytotoxicity    cellproliferation    apoptosis    biocompatibility
收稿日期: 2014-12-31     
No. Materials Main composition
A CoCrMo Co 56.04,Cr 22.83,Mo 1.09
B CoCrMo+1%Cu Co 60.21,Cr 26.62,Mo 6.15,Cu 1.24
C CoCrMo+2%Cu Co 64.65,Cr 27.25,Mo 6.00,Cu 2.10
D CoCrMo+3%Cu Co 62.23,Cr 28.62,Mo 6.27,Cu 2.88
表1  实验用合金分组及其主要成分
图1  各组细胞在各时间点的细胞形态
Group 24 h 48 h 72 h
RGR Level RGR Level RGR Level
CoCrMo 82.40% 1 81.04% 1 84.21% 1
CoCrMo+1%Cu 95.09% 1 95.30% 1 96.74% 1
CoCrMo+2%Cu 86.41% 1 91.09% 1 94.88% 1
CoCrMo+3%Cu 80.93% 1 80.04% 1 82.40% 1
Positive control group 37.15% 3 37.65% 3 37.09% 3
表2  4组合金对L929细胞的相对增殖率和细胞毒性等级
Groups 24 h 48 h 72 h
CoCrMo 0.4199 ± 0.0744 0.6862±0.0688 1.3627±0.0808
CoCrMo+1%Cu 0.4654 ± 0.0570 0.7850±0.1584 1.5469±0.0987b
CoCrMo+2%Cu 0.4343±0.0513 0.7558±0.0476 1.5196±0.1596
CoCrMo+3%Cu 0.4147±0.0379 0.6793±0.0396a 1.3360±0.0447a,c
Negative control group 0.4830±0.0840 0.8175±0.0784 1.5947±0.1676
Positive control group 0.2578±0.0318a,b 0.3856±0.0759a,b 0.6701±0.0775a,b
表3  不同培养时间点各组的吸光度值( x ? ±s , n=6)
图3  各组细胞培养48 h后流式细胞仪检测早期凋亡率
Groups Early apoptosis rate P
CoCrMo 4.10±0.45 0.003a
CoCrMo+1%Cu 2.80±0.66 0.385a 0.027b
CoCrMo+2%Cu 3.33±0.38 0.039a 0.038b
CoCrMo+3%Cu 4.37±0.26 0.005a
0.427b
Negative control group 2.36±0.40 -
表4  各组细胞48 h早期凋亡率( x ? ±s , n=3)
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