Abstract:
:We established two novel cell lines, designated as IMS-BC1 and IMS-BC2, from two patients with chronic myelogenous leukemia in blast crisis. The two cell lines were positive for CD13 and CD33 and negative for CD34 and HLA-DR by surface marker analysis. IMS-BC1 had four Philadelphia (Ph1) chromosomes and a breakpoint within the 3'-portion of M-bcr, and IMS-BC2 had five Ph1 chromosomes and two breakpoints within the 3'- and 5'-portions of M-bcr. Both cell lines' growth activities were moderately suppressed by IFN-alpha. The proliferation of IMS-BC2 was inhibited by IFN-gamma and apoptosis was induced within 72 h, while IMS-BC1 was resistant to IFN-gamma. Fibronectin inhibited the proliferation of the two cell lines at higher than 10 micrograms/ml, but only IMS-BC2 showed apoptosis. Transforming growth factor-beta inhibited the proliferation of IMS-BC2 resulting in apoptosis, while it inhibited that of IMS-BC1 moderately but failed to induce apoptosis. All-trans retinoic acid (ATRA) inhibited the proliferation of IMS-BC2 at very low concentration (10(-17) mol/l) and induced apoptosis at doses higher than 10(-9) mol/l within 72 h without terminal differentiation, while IMS-BC1 was completely resistant to ATRA. The two cell lines showed different responses to growth inhibitory cytokines and factors. These cell lines should prove useful in the analysis of mechanisms of apoptosis induced by growth inhibitory cytokines and factors.
journal_name
Int J Hematoljournal_title
International journal of hematologyauthors
Nagamura F,Nagamura-Inoue T,Tojo A,Minamihisamatsu M,Tanabe T,Zaike Y,Tani K,Saisho H,Asano Sdoi
10.1016/s0925-5710(98)00007-3subject
Has Abstractpub_date
1998-04-01 00:00:00pages
283-94issue
3eissn
0925-5710issn
1865-3774pii
S0925571098000073journal_volume
67pub_type
杂志文章abstract::We have demonstrated that adipose tissue-derived mesenchymal stem cells (ADSCs) from mice are capable of reconstituting the hematopoietic microenvironment, and facilitate hematopoiesis more effectively than bone marrow-derived mesenchymal stem cells (BMSCs) in mouse. The ready accessibility of fat tissue rich in MSCs ...
journal_title:International journal of hematology
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journal_title:International journal of hematology
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abstract::The author would like to correct the error in the "Abstract" section of original publication as given below. ...
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journal_title:International journal of hematology
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journal_title:International journal of hematology
pub_type: 杂志文章
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