Parkening T A
J Anat. 1976 Dec;122(Pt 3):485-498.
The transformation of fibroblasts into decidual cells was studied ultrastructurally in golden hamsters pregnant for 3, 3 1/2, 4, 4 1/2, 5, or 5 1/2 days (post-ovulation). Cells within the endometrial stroma were generally separated from one another and spindle-shapted before blastocyst contact with the uterine epithelium. Once the epithelium enclosed the blastocyst (3 1/2 days), stromal cells adjacent to the blastocyst antimesometrially began to exhibit more extensive Golgi complexes with increased secretory activity. As differentiation proceeded the amount of cellular contact increased and various types of junctions formed between the cells. Throughout the period examined, intercellular space progressively decreased, while the cisternal width of the granular endoplasmic reticulum continually increased. Special organelles, whose functions remain unknown, first appeared in differentiating cells at 4 days (fibrils) and 5 1/2 days (crystalloid and 'dumb-bell' structures).
在排卵后怀孕3天、3.5天、4天、4.5天、5天或5.5天的金黄仓鼠中，对成纤维细胞向蜕膜细胞的转化进行了超微结构研究。在胚泡与子宫上皮接触之前，子宫内膜基质中的细胞通常彼此分离，呈纺锤形。一旦上皮细胞包裹住胚泡（3.5天），胚泡反系膜侧相邻的基质细胞开始表现出更广泛的高尔基体复合体，分泌活性增加。随着分化的进行，细胞间接触量增加，细胞间形成了各种类型的连接。在所研究的整个时期内，细胞间隙逐渐减小，而颗粒内质网的池宽度持续增加。功能尚不清楚的特殊细胞器最早在4天（原纤维）和5.5天（晶体和“哑铃”结构）出现在分化细胞中。
