Cytogenetical Analysis of the Human Gastric Carcinoma Cell Line TMK-1

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Title ( eng )
Cytogenetical Analysis of the Human Gastric Carcinoma Cell Line TMK-1
Creator
Ito Hisao
Oda Noriko
Kameda Takashi
Nakayama Hirofumi
Tahara Eiichi
Source Title
Hiroshima Journal of Medical Sciences
Volume 38
Issue 3
Start Page 121
End Page 124
Journal Identifire
[PISSN] 0018-2052
[EISSN] 2433-7668
[NCID] AA00664312
Abstract
We examined a human gastric carcinoma cell line TMK-1 cytogenetically by G-banding technique. TMK-1 cells were characterized not only by numerical aberrations but also by structural rearrangements affecting various chromosomes. The modal chromosome number was found to be in the hypotriploid range with most ranging between 64 and 66. Flow cytometry revealed near triploid DNA histogram which was correlated well with chromosome counts. Gain of chromosome 7, 9, 11, and X was found in all of the 25 cells examined and trisomy of chromosome 3, 5, 10, 19, 21 and 22 was also frequently detected. Loss of Y chromosome was shown in all of the cells and monosomy of chromosome 6 and 13 was frequently detected. The most conspicuous rearrangements involved chromosome 6, 12, and 16 which showed complex nonreciprocal translocation. Twenty-two cells (88%) had isochromosome of 12q. A brief review is made of reported karyotype of human gastric cancers.
Keywords
Hwnan stomach cancer
TMK-1 cell
Cytogenetics
Flow cytometly
Descriptions
This study was supported in part by Grant-in-Aid for Cancer Research from the Ministry of Health and Welfare, Tokyo and Tsuchiya Medical Foundation, Hiroshima, Japan.
NDC
Medical sciences [ 490 ]
Language
eng
Resource Type departmental bulletin paper
Publisher
Hiroshima University Medical Press
Date of Issued 1989-09
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0018-2052
[NCID] AA00664312
[PMID] 2584055