Neoplastic transformation of human diploid fibroblasts (KMST‐6) by treatment with 60Co gamma rays
Neoplastic transformation of human diploid fibroblasts (KMST‐6) by treatment with 60Co gamma rays
复制标题
60Co 伽马射线处理人二倍体成纤维细胞 (KMST-6) 的肿瘤转化
DOI:
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发表时间:
1985
影响因子:
6.4
通讯作者:
T. Kimoto
中科院分区:
文献类型:
--
作者:
M. Namba;K. Nishitani;F. Hyodoh;F. Fukushima;T. Kimoto
Normal fibroblasts (KMS‐6) derived from a human embryo were transformed in culture into neoplastic cells (KMST‐6) by repeated treatment with 60Co gamma ray irradiation. Repeated treatment was necessary to obtain transformation. Control normal cells exhibited normal karyotype (46, XX) and stopped dividing due to cellular ageing at the 40th passage. The transformed cells are presently growing indefinitely (140th passage) and exhibit prominent karyologic aberrations, both numerical and structural. These 2 characteristics, indefinite growth and abnormal karyotype, are thought to be the most important parameters for neoplastic transformation of human fibroblasts. Other indispensable parameters are the presence of active mitotic figures on confluent cell sheets and colony‐type morphology. Transformed cells grow into colonies with relatively smooth edges, while normal fibroblasts form colonies with jagged edges, due to the protrusion of growing fibroblasts. Other parameters, such as elevated plating efficiency, enhanced colony formation in soft agar, low serum requirement for growth, high saturation density, and acquisition of transplantability, are not reliable in the early stages of transformation. These parameters probably appear at rather later stages of transformation following several cell divisions. Among other characteristics, the transformed KMST‐6 cells exhibit a B‐type isozyme pattern of glucose‐6‐phosphate dehydrogenase, lactate‐dehydrogenase isozyme pattern of human origin, no evidence of viral infection and no production of C‐type virus particles.
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DOI:
10.1073/pnas.79.8.2613
发表时间:
1982
影响因子:
11.1
作者:
Maher,VM;Rowan,LA;Silinskas,KC;Kateley,SA;McCormick,JJ
通讯作者:
McCormick,JJ
影响因子:
11.2
作者:
Dorman,BH;Siegfried,JM;Kaufman,DG
通讯作者:
Kaufman,DG
影响因子:
11.2
作者:
Zimmerman,RJ;Little,JB
通讯作者:
Little,JB
影响因子:
11.2
作者:
Silberberg,DH;Manning,MC;Schreiber,AD
通讯作者:
Schreiber,AD
影响因子:
11.2
作者:
Silinskas,KC;Kateley,SA;Tower,JE;Maher,VM;McCormick,JJ
通讯作者:
McCormick,JJ