ヒト尿路***悪性腫瘍のヌードマウスへの異種移植の研究 --ヒト原発性尿管腫瘍株の樹立とその性状--

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1)ヒト原発性尿管移行上皮癌(grade 2, stage B)からヌードマウス可移植株(AMUT-1)を樹立した.2) AMUT-1は,5代以降ほぼ100%の生着率を示し,安定した一定の増殖を示した.3) AMUT-1は,継代を繰り返しても原腫瘍の形態学的および生物学的性格をよく維持した.4)本腫瘍はCEA産生腫瘍と考えられたThe tumor line in nude mice is one of the most important experimental animal models for oncodevelopmental studies. We implanted a human ureteral tumor into nude mice, established the tumor line, AM-UT-1, and maintained it by serial transplantation. The characteristics of this tumor line in nude mice are reported. Histologically, the original tumor was a transitional cell carcinoma (grade II, stage B). The transplanted tumor grew locally and had a constant growth pattern during serial passage until the 13th passage in nude recipients and maintained the basic histological, immunohistochemical findings of the original tumor. Both original tumor and serial transplanted tumor had carcinoembryonic antigen (CEA)-producing activity. A high level of serum CEA was also recognized in nude mice.

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千田八朗
千田クリニック

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