Role of α1 Acid Glycoprotein in the In Vivo Resistance of Human BCR-ABL+ Leukemic Cells to the Abl Inhibitor STI571

C Gambacorti-Passerini, R Barni… - Journal of the …, 2000 - academic.oup.com
Background: Chronic myeloid leukemia is caused by a chromosomal translocation that
results in an oncogenic fusion protein, Bcr-Abl. Bcr-Abl is a tyrosine kinase whose activity is …

Mechanism of resistance to the ABL tyrosine kinase inhibitor STI571 in BCR/ABL–transformed hematopoietic cell lines

E Weisberg, JD Griffin - Blood, The Journal of the American …, 2000 - ashpublications.org
The tyrosine kinase activity of the Bcr/Abl oncogene is required for transformation of
hematopoietic cells. The tyrosine kinase inhibitor STI571 (formerly called CGP57148B …

Induction of resistance to the Abelson inhibitor STI571 in human leukemic cells through gene amplification

P le Coutre, E Tassi, M Varella-Garcia… - Blood, The Journal …, 2000 - ashpublications.org
The 2-phenylaminopyrimidine derivative STI571 has been shown to selectively inhibit the
tyrosine kinase domain of the oncogenic bcr/abl fusion protein. The activity of this inhibitor …

Selection and characterization of BCR-ABL positive cell lines with differential sensitivity to the tyrosine kinase inhibitor STI571: diverse mechanisms of resistance

FX Mahon, MWN Deininger… - Blood, The Journal …, 2000 - ashpublications.org
Targeting the tyrosine kinase activity of Bcr-Abl with STI571 is an attractive therapeutic
strategy in chronic myelogenous leukemia (CML). A few CML cell lines and primary …

Mutation in the ATP-binding pocket of the ABL kinase domain in an STI571-resistant BCR/ABL-positive cell line

C Ricci, B Scappini, V Divoky, S Gatto, F Onida… - Cancer research, 2002 - AACR
The major mechanism of action of STI571 is a competitive interference with the ATP-binding
site of the Bcr/Abl tyrosine kinase. In the BCR/ABL-positive cell line KBM5, we studied …

Reversal of the resistance to STI571 in human chronic myelogenous leukemia K562 cells

M Mukai, XF Che, T Furukawa, T Sumizawa… - Cancer …, 2003 - Wiley Online Library
STI571, an Abl‐specific tyrosine kinase inhibitor, selectively kills Bcr‐Abl‐containing cells in
vitro and in vivo. However, some chronic myelogenous leukemia (CML) cell lines are …

α1-Acid glycoprotein expressed in the plasma of chronic myeloid leukemia patients does not mediate significant in vitro resistance to STI571

HG Jørgensen, MA Elliott, EK Allan… - Blood, The Journal …, 2002 - ashpublications.org
Despite the efficacy of STI571 (Glivec, Novartis, Basle, Switzerland) in treating chronic
myeloid leukemia (CML), drug resistance has already been noted both in vitro and in vivo …

Clinical resistance to STI-571 cancer therapy caused by BCR-ABL gene mutation or amplification

ME Gorre, M Mohammed, K Ellwood, N Hsu… - Science, 2001 - science.org
Clinical studies with the Abl tyrosine kinase inhibitor STI-571 in chronic myeloid leukemia
demonstrate that many patients with advanced stage disease respond initially but then …

Elevated Bcr-Abl expression levels are sufficient for a haematopoietic cell line to acquire a drug-resistant phenotype

K Keeshan, KI Mills, TG Cotter, SL McKenna - Leukemia, 2001 - nature.com
A characteristic feature of chronic myeloid leukaemia (CML) is the inevitable advancement
from a treatable chronic phase to a fatal, drug-resistant stage referred to as blast crisis. The …

Mechanisms of resistance to STI571 in Philadelphia chromosome-associated leukemias

NP Shah, CL Sawyers - Oncogene, 2003 - nature.com
Philadelphia chromosome-associated leukemias are among the most well-understood
human malignancies. The importance of BCR-ABL enzymatic activity in the proliferation of …