中国组织工程研究 ›› 2020, Vol. 24 ›› Issue (34): 5447-5453.doi: 10.3969/j.issn.2095-4344.2357

• 组织工程骨材料Tissue-engineered bone • 上一篇    下一篇

煅烧骨/壳聚糖复合材料对成骨细胞增殖黏附的影响

 12,黄晓林3,霍  1,周  1,程余婷1,齐昱晗1,伍  1,杨童景1,廖运茂2,梁  2(   

  1. 1贵州医科大学口腔医学院/附属口腔医院,贵州省贵阳市  5500042四川大学华西口腔医学院,四川省成都市  6100413中山市人民医院口腔种植科,广东省中山市  528403

  • 收稿日期:2020-02-27 修回日期:2020-03-05 接受日期:2020-04-11 出版日期:2020-11-08 发布日期:2020-09-11
  • 通讯作者: 梁星,教授,博士生导师,四川大学华西口腔医学院,四川省成都市 610041
  • 作者简介:廖健,1978年生,贵州省石阡县人,仡佬族,博士,副教授,副主任医师,硕士生导师,主要从事口腔修复与种植的基础与临床研究。
  • 基金资助:
    国家自然科学基金(81660179);贵州省自然科学基金资助项目(黔科合基础[2016]1124);贵州省自然科学基金联合基金项目(黔科合LH[2016]7257)

Effects of calcined bone/chitosan composite materials on proliferation and adhesion in osteoblasts

Liao Jian1, 2, Huang Xiaolin3, Huo Hua1, Zhou Qian1, Cheng Yuting1, Qi Yuhan1, Wu Chao1, Yang Tongjing1, Liao Yunmao2, Liang Xing2   

  1. 1School of Stomatology/Stomatological Hospital, Guizhou Medical University, Guiyang 550004, Guizhou Province, China; 2West China School of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China; 3Department of Oral Implantology, Zhongshan People’s Hospital, Zhongshan 528403, Guangdong Province, China

  • Received:2020-02-27 Revised:2020-03-05 Accepted:2020-04-11 Online:2020-11-08 Published:2020-09-11
  • Supported by:
    the National Natural Science Foundation of China, No. 81660179; the Guizhou Provincial Natural Science Foundation, No. [2016]1124; the Joint Fund Project of Guizhou Provincial Natural Science Foundation, No. LH[2016]7257

摘要:

文题释义:

壳聚糖:是甲壳素的脱乙酰产物,属于天然聚合物,广泛存在于低等生物体内,其代谢产物为N-乙酰葡萄糖和氨基多糖,是天然代谢产物,对人体组织无毒无害,具有良好的生物相容性和生物降解性。

体外细胞毒性实验:是运用体外细胞培养技术检测待测物质和()其浸提液是否造成细胞生长受到抑制、变异、溶解、死亡等情况,是生物材料评价体系中非常重要的指标之一,也是各种生物材料运用到临床前安全性评价的必选和首选项目。

背景:前期研究制备了不同配比的煅烧骨/壳聚糖复合材料,体外细胞实验显示该复合材料安全无毒。

目的:观察煅烧骨/壳聚糖复合材料对成骨细胞增殖与黏附的影响。

方法:采用溶液共混法制备煅烧骨与壳聚糖质量比分别为1/21/12/1的复合材料,将新生大鼠成骨细胞分别接种于3种复合材料上,以单独培养的细胞为对照。采用CCK-8法检测细胞增殖情况,DAPI荧光染色观察细胞在材料上的生长情况,扫描电镜观察细胞在复合材料表面的黏附。

结果与结论:CCK-8检测显示4组成骨细胞增殖良好,在培养的第1-3天增殖较慢,第3天后增殖加快,第3-7天进入对数生长期,第7天后进入平台期,复合材料组细胞增殖与对照组无差异;②培养3 d后的DAPI荧光染色显示,成骨细胞在3种复合材料表面生长良好,组间无明显差异;③扫描电镜显示,培养3 d后成骨细胞紧密黏附于3种复合材料表面,伸展完全,胞体丰满并伸出伪足嵌入材料内部;培养7 d后细胞铺满材料表面,生长密集,其中质量比为2/1煅烧骨/壳聚糖复合材料表面的细胞最密集;④结果表明,成骨细胞可在煅烧骨/壳聚糖复合材料表面增殖与黏附。

ORCID: 0000-0003-3519-4485(廖健)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 骨, 材料">,  , 壳聚糖">,  , 煅烧骨">,  , 成骨细胞">,  , 细胞增殖">,  , 细胞黏附">,  , 骨再生

Abstract:

BACKGROUND: The different ratios of calcined bone/chitosan composites were prepared in previous studies, and in vitro cell experiments showed that the composites were safe and non-toxic.

OBJECTIVE: To observe the effect of calcined bone/chitosan composite on the proliferation and adhesion of osteoblasts.  

METHODS: The composite materials with calcined bone and chitosan mass ratios of 1/2, 1/1, and 2/1 were prepared by solution blending method. Neonatal rat osteoblasts were inoculated on three kinds of composite materials, and the cells cultured alone were used as control. CCK-8 kit was used to detect cell proliferation. DAPI fluorescence staining was used to observe the growth of cells on the material. Scanning electron microscopy was used to observe the adhesion of cells on the surface of the composite material.

RESULTS AND CONCLUSION: (1) The CCK-8 test showed that the osteoblasts of the four components proliferated well, proliferated slowly from the first to third days of culture, accelerated after the third day, entered the logarithmic growth phase from the third to seventh days, and entered the plateau phase after the seventh day. There was no difference in cell proliferation between the composite materials group and the control group. (2) After 3 days of culture, DAPI fluorescent staining showed that osteoblasts grew well on the surface of the three kinds of composites, and there was no significant difference between the groups. (3) Scanning electron microscopy showed that after 3 days of culture, the osteoblasts adhered tightly to the surface of the three kinds of composites, stretched completely; the cell body was full and protruded the pseudopod that was embedded in the material. After 7 days of culture, the cells covered the surface of the material and grew densely, among which the cells on the surface of calcined bone/chitosan composite with a mass ratio of 2/1 were most dense. (4) The results showed that osteoblasts could proliferate and adhere on the surface of the calcined bone/chitosan composite material.

Key words: bone">,  , material, chitosan">,  , calcined bone">,  , osteoblast">,  , cell proliferation">,  , cell adhesion">,  , bone regeneration

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