Resistance to 4-(9-acridinylamino) methanesulphon-m-anisidide (m-AMSA) in human myeloid leukaemia. 1990

W L Skinner, and D Murray, and V Kohli, and M Beran, and K B McCredie, and E J Freireich, and B S Andersson
Department of Hematology, University of Texas M.D. Anderson Cancer Center, Houston 77030.

Sublines of a human myeloid leukaemia cell line, KBM-3, with increasing degrees of resistance to the antileukaemic agent 4'-(9-acridinlylamino) methanesulphon-m-anisidide (m-AMSA) were evaluated for their response to this drug using a clonogenic assay to measure cell survival and alkaline elution to assess m-AMSA induced DNA strand breakage. Polyacrylamide gel electrophoresis was used to map the protein profiles of the various cell lines. The resistant lines were obtained by intermittent exposure of the KBM-3 cells to the highest tolerated concentration of m-AMSA so that the culture would be repopulated only by the most resistant subpopulation after each exposure. Two distinct phases were apparent during the development of resistance. During the first 14 months of intermittent exposure to maximally tolerated concentrations of m-AMSA, the cells developed low-degree m-AMSA resistance (5-7-fold as compared with the parent line, as measured by cell survival). This low-degree resistance was characterised by a somewhat suppressed level of DNA strand breakage and no measurable change in cellular protein levels. Subsequently, a single escalation of the m-AMSA retreatment concentration resulted in a cell population that was approximately 100-fold resistant, as assessed by cloning. This rapid phenotypic change temporally coincided with the acquisition of an almost complete refractoriness to m-AMSA-induced DNA strand breakage and the loss of a cellular 76 kDa protein. We suggest that the loss of this protein is important for the development of a highly m-AMSA resistant phenotype.

UI MeSH Term Description Entries
D009363 Neoplasm Proteins Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm. Proteins, Neoplasm
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D002470 Cell Survival The span of viability of a cell characterized by the capacity to perform certain functions such as metabolism, growth, reproduction, some form of responsiveness, and adaptability. Cell Viability,Cell Viabilities,Survival, Cell,Viabilities, Cell,Viability, Cell
D004249 DNA Damage Injuries to DNA that introduce deviations from its normal, intact structure and which may, if left unrepaired, result in a MUTATION or a block of DNA REPLICATION. These deviations may be caused by physical or chemical agents and occur by natural or unnatural, introduced circumstances. They include the introduction of illegitimate bases during replication or by deamination or other modification of bases; the loss of a base from the DNA backbone leaving an abasic site; single-strand breaks; double strand breaks; and intrastrand (PYRIMIDINE DIMERS) or interstrand crosslinking. Damage can often be repaired (DNA REPAIR). If the damage is extensive, it can induce APOPTOSIS. DNA Injury,DNA Lesion,DNA Lesions,Genotoxic Stress,Stress, Genotoxic,Injury, DNA,DNA Injuries
D004273 DNA, Neoplasm DNA present in neoplastic tissue. Neoplasm DNA
D004351 Drug Resistance Diminished or failed response of an organism, disease or tissue to the intended effectiveness of a chemical or drug. It should be differentiated from DRUG TOLERANCE which is the progressive diminution of the susceptibility of a human or animal to the effects of a drug, as a result of continued administration. Resistance, Drug
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000677 Amsacrine An aminoacridine derivative that intercalates into DNA and is used as an antineoplastic agent. m-AMSA,AMSA,AMSA P-D,Amsacrina,Amsidine,Amsidyl,Cain's Acridine,NSC-141549,NSC-156303,NSC-249992,SN-11841,SN11841,meta-AMSA,AMSA P D,AMSA PD,Cain Acridine,Cains Acridine,NSC 141549,NSC 156303,NSC 249992,NSC141549,NSC156303,NSC249992,SN 11841,meta AMSA
D014407 Tumor Cells, Cultured Cells grown in vitro from neoplastic tissue. If they can be established as a TUMOR CELL LINE, they can be propagated in cell culture indefinitely. Cultured Tumor Cells,Neoplastic Cells, Cultured,Cultured Neoplastic Cells,Cell, Cultured Neoplastic,Cell, Cultured Tumor,Cells, Cultured Neoplastic,Cells, Cultured Tumor,Cultured Neoplastic Cell,Cultured Tumor Cell,Neoplastic Cell, Cultured,Tumor Cell, Cultured
D015470 Leukemia, Myeloid, Acute Clonal expansion of myeloid blasts in bone marrow, blood, and other tissue. Myeloid leukemias develop from changes in cells that normally produce NEUTROPHILS; BASOPHILS; EOSINOPHILS; and MONOCYTES. Leukemia, Myelogenous, Acute,Leukemia, Nonlymphocytic, Acute,Myeloid Leukemia, Acute,Nonlymphocytic Leukemia, Acute,ANLL,Acute Myelogenous Leukemia,Acute Myeloid Leukemia,Acute Myeloid Leukemia with Maturation,Acute Myeloid Leukemia without Maturation,Leukemia, Acute Myelogenous,Leukemia, Acute Myeloid,Leukemia, Myeloblastic, Acute,Leukemia, Myelocytic, Acute,Leukemia, Myeloid, Acute, M1,Leukemia, Myeloid, Acute, M2,Leukemia, Nonlymphoblastic, Acute,Myeloblastic Leukemia, Acute,Myelocytic Leukemia, Acute,Myelogenous Leukemia, Acute,Myeloid Leukemia, Acute, M1,Myeloid Leukemia, Acute, M2,Nonlymphoblastic Leukemia, Acute,Acute Myeloblastic Leukemia,Acute Myeloblastic Leukemias,Acute Myelocytic Leukemia,Acute Myelocytic Leukemias,Acute Myelogenous Leukemias,Acute Myeloid Leukemias,Acute Nonlymphoblastic Leukemia,Acute Nonlymphoblastic Leukemias,Acute Nonlymphocytic Leukemia,Acute Nonlymphocytic Leukemias,Leukemia, Acute Myeloblastic,Leukemia, Acute Myelocytic,Leukemia, Acute Nonlymphoblastic,Leukemia, Acute Nonlymphocytic,Leukemias, Acute Myeloblastic,Leukemias, Acute Myelocytic,Leukemias, Acute Myelogenous,Leukemias, Acute Myeloid,Leukemias, Acute Nonlymphoblastic,Leukemias, Acute Nonlymphocytic,Myeloblastic Leukemias, Acute,Myelocytic Leukemias, Acute,Myelogenous Leukemias, Acute,Myeloid Leukemias, Acute,Nonlymphoblastic Leukemias, Acute,Nonlymphocytic Leukemias, Acute

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