不同Pfirrmann分级椎间盘内髓核细胞生物学特性的比较

被引:40
作者
杨勇 [1 ]
梁伟 [2 ]
罗卓荆 [2 ]
张世磊 [2 ]
陶惠人 [2 ]
机构
[1] 解放军医院骨科
[2] 第四军医大学附属西京医院骨科
关键词
腰椎; 椎间盘; 细胞培养技术;
D O I
暂无
中图分类号
R329.28 [];
学科分类号
摘要
目的比较不同Pfirrmann分级椎间盘内髓核细胞的生物学特性,验证腰椎间盘退变Pfirrmann分级能否反应髓核组织在细胞水平的退变程度。方法取术中获得的患者的髓核组织,按腰椎椎间盘退变Pfirrmann分级标准进行分组。组织切片甲苯胺蓝观察比较各组髓核内细胞的密度。采用酶消化法分离培养髓核细胞。台盼蓝染色计算各组细胞活性比率,光镜观察细胞形态,透射电镜观察细胞的超微结构。MTT法绘制各组2代细胞的生长曲线。阿利辛蓝法检测各组细胞的蛋白聚糖含量,比较各组差异。结果随退变级别升高,标本内胶冻样物质含量减少,透明度降低,纤维化组织增多,Ⅴ级标本完全纤维化,并伴有钙化,无法区分髓核组织。Ⅰ级和Ⅱ级髓核内细胞密度明显高于Ⅲ级,Ⅳ级又明显高于Ⅳ级。Ⅰ级组髓核细胞的活性比率为(93.5±3.7)%;Ⅱ级组细胞活性比率为(91.6±4.3)%;Ⅲ级组细胞活性比率为(83.5±6.7)%;Ⅳ级组细胞活性比率为(74.8±5.9)%。除Ⅰ级与Ⅱ级比较差异无统计学意义外,其余各组两两比较差异均具有统计学意义(P<0.05)。光镜下Ⅰ级和Ⅱ级组细胞呈短梭形或多角形轮廓清晰饱满,折光性强。Ⅲ级组胞突较长,Ⅳ级组胞突更长,细胞轮廓模糊。电镜下Ⅰ级和Ⅱ级组细胞相似,胞浆内含有大量粗面内质网和线粒体,Ⅲ级组细胞内的粗面内质网和线粒体减少,出现小的空泡,可见溶酶体出现。Ⅳ级组细胞溶酶体大量聚集,可见巨大的空泡样结构。Ⅰ级组和Ⅱ级组细胞生长速率快于Ⅲ级组(P<0.01))。Ⅲ级组细胞生长速率快于Ⅳ级组(P<0.05)。Ⅰ、Ⅱ、Ⅲ、Ⅳ组细胞GAG含量分别为(423.19±41.21)mg/L,(408.23±29.25)mg/L、(273.05±52.44)mg/L、(91.73±38.06)mg/L,Ⅰ级组和Ⅱ级组细胞高于于III级组(P<0.05))。Ⅲ级组细胞高于Ⅳ级组(P<0.05)。结论椎间盘退变的Pfirrmann分级,能很好的反映髓核组织在细胞水平的退变程度。是一种简单有效的退变分级系统。
引用
收藏
页码:244 / 248
页数:5
相关论文
共 8 条
[1]
Recent advances in disc cell biology [J].
Gruber, HE ;
Hanley, EN .
SPINE, 2003, 28 (02) :186-193
[2]
Ultrastructure of the human intervertebral disc during aging and degeneration - Comparison of surgical and control specimens [J].
Gruber, HE ;
Hanley, EN .
SPINE, 2002, 27 (08) :798-805
[3]
Magnetic resonance classification of lumbar intervertebral disc degeneration [J].
Pfirrmann, CWA ;
Metzdorf, A ;
Zanetti, M ;
Hodler, J ;
Boos, N .
SPINE, 2001, 26 (17) :1873-1878
[4]
Analysis of aging and degeneration of the human intervertebral disc - Comparison of surgical specimens with normal controls [J].
Gruber, HE ;
Hanley, EN .
SPINE, 1998, 23 (07) :751-757
[5]
1997 Volvo Award winner in basic science studies - Immunohistologic markers for age-related changes of human lumbar intervertebral discs [J].
Nerlich, AG ;
Schleicher, ED ;
Boos, N .
SPINE, 1997, 22 (24) :2781-2795
[6]
The role of phospholipase A(2) and nitric oxide in pain-related behavior produced by an allograft of intervertebral disc material to the sciatic nerve of the rat [J].
Kawakami, M ;
Tamaki, T ;
Hashizume, H ;
Weinstein, JN ;
Meller, ST .
SPINE, 1997, 22 (10) :1074-1079
[7]
Herniated lumbar intervertebral discs spontaneously produce matrix metalloproteinases, nitric oxide, interleukin-6, and prostaglandin E(2) [J].
Kang, JD ;
Georgescu, HI ;
McIntyreLarkin, L ;
StefanovicRacic, M ;
Donaldson, WF ;
Evans, CH .
SPINE, 1996, 21 (03) :271-277
[8]
Immunohistochemical study of matrix metalloproteinase-3 and tissue inhibitor of metalloproteinase-1 in human intervertebral discs [J].
Kanemoto, M ;
Hukuda, S ;
Komiya, Y ;
Katsuura, A ;
Nishioka, J .
SPINE, 1996, 21 (01) :1-8