Shulman H J, Meyer K
J Exp Med. 1968 Dec 1;128(6):1353-62. doi: 10.1084/jem.128.6.1353.
Primary cell cultures of differentiated chondrocytes were shown to produce chondroitin-4-sulfate as the predominant mucopolysaccharide, with suggestive evidence for the synthesis of keratan sulfate and possibly chondroitin-6-sulfate. Chicken embryonic cartilage was shown to be composed mainly of chondroitin-4-sulfate, with a small amount of chondroitin-6-sulfate, but essentially no keratan sulfate. These findings were compared to the data of others, and a hypothesis explaining the aging process in cartilage in terms of cellular differentiation was presented.
已证实分化软骨细胞的原代细胞培养物产生硫酸软骨素-4作为主要的粘多糖,有迹象表明存在硫酸角质素以及可能的硫酸软骨素-6的合成。已表明鸡胚胎软骨主要由硫酸软骨素-4组成,含有少量硫酸软骨素-6,但基本不含硫酸角质素。将这些发现与其他人的数据进行了比较,并提出了一个从细胞分化角度解释软骨老化过程的假说。