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本研究比较分析了肺高、低转移性涎腺腺样囊性癌细胞株的核形。结果：高转移性细胞株染色体众数为６１～６５，主干为６５；而低转移性细胞株染色体众数为５８～６１．主干为６０。与低转移性细胞相比，高转移性细胞株染色体数目没有明显增加，形态无明显变异；与正常体细胞相比，染色体数目增加主要发生在小体积组。结果提示：高转移性涎腺腺样囊性癌细胞其ＤＮＡ含量无明显增加，单纯ＤＮＡ含量的测定，并不能充分反应其转移特性，而应ＭＤＮＡ的结构上进行探讨。
This study compared the lung shape of salivary adenoid cystic carcinoma cell lines with high metastasis and low metastasis. Results: The chromosome number of highly metastatic cell line was 61-65, the main stem was 65, while the chromosome number of low metastatic cell line was 58-61. The backbone of 60. Compared with low metastatic cells, there was no significant increase in the number of chromosomes in highly metastatic cell lines and no significant morphological changes. Compared with normal somatic cells, the increase in chromosome number mainly occurred in the small volume group. The results suggest that there is no significant increase in DNA content in highly metastatic salivary adenoid cystic carcinoma cells. The measurement of DNA content alone does not fully reflect the metastatic characteristics of the salivary adenoid cystic carcinoma cells, but the structure of MDNA should be explored.