Role of alpha1 Acid Glycoprotein in the In Vivo Resistance of Human BCR-ABL+ Leukemic Cells to the Abl Inhibitor STI571
JNCI Journal of the National Cancer InstitutePublished 18 October 2000Open access
Carlo Gambacorti‐Passerini
Citations322
Generate an AI Snapshot to get a quick, structured summary of this paper.
Study Snapshot
ObjectiveStudy objective
MethodsResearch methodology
PopulationPopulation studied
Sample sizeSample sizes
OutcomesStudy outcomes here
ResultsStudy results comes here
LimitationsResearch study limitations comes here
A concise AI-generated summary of the paper will appear here once you click Generate AI Snapshot.
Abstract
AGP in the plasma of relapsed animals binds to STI571, preventing this compound from inhibiting the Bcr/Abl tyrosine kinase. Molecules such as erythromycin that compete with STI571 for binding to AGP may enhance the therapeutic potential of this drug.
Keywords
Medicine
Nature MedicineEffects of a selective inhibitor of the Abl tyrosine kinase on the growth of Bcr–Abl positive cells
3,658 Citations1996Brian Druker, Shu Tamura +6 more
A compound, designed to inhibit the Abl protein tyrosine kinase, was evaluated for its effects on cells containing the Bcr–Abl fusion protein and it was found that this compound may be useful in the treatment of bcr–abl–positive leukemias.
PubMedInhibition of the Abl protein-tyrosine kinase in vitro and in vivo by a 2-phenylaminopyrimidine derivative.
1,080 Citations1996Elisabeth Buchdunger, J. Zimmermann +5 more
An inhibitor (CGP 57148) of the Abl and platelet-derived growth factor (PDGF) receptor protein-tyrosine kinases from the 2-phenylaminopyrimidine class is described, which is highly active in vitro and in vivo and may have therapeutic potential for the treatment of diseases that involve abnormal cellular proliferation induced by Abl protein-tiesine kinase deregulation or PDGF receptor activation.
NatureStructural organization of the bcr gene and its role in the Ph′ translocation
905 Citations1985Nora Heisterkamp, Kees Stam +3 more
It is demonstrated that as a result of the Ph′ translocation, a variable number of bcr exons are included in the chimaeric bcr/abl mRNA, which could be responsible for the transition of the abl cellular proto-oncogene into an oncogene.
BloodThe Tyrosine Kinase Inhibitor CGP57148B Selectively Inhibits the Growth of BCR-ABL–Positive Cells
626 Citations1997Michael W. Deininger, John M. Goldman +2 more
CGP57148B, a 2-phenylaminopyrimidine derivative, has been shown to selectively inhibit the tyrosine kinase of ABL and BCR-ABL and it is concluded that this new agent may have significant therapeutic applications.
BloodInduction of resistance to the Abelson inhibitor STI571 in human leukemic cells through gene amplification
487 Citations2000Philipp le Coutre, Elena Tassi +7 more
Overexpression of the Bcr/Abl protein mediated through gene amplification is associated with and probably determines resistance of human leukemic cells to STI571 in vitro.
BloodMechanism of resistance to the ABL tyrosine kinase inhibitor STI571 in BCR/ABL–transformed hematopoietic cell lines
399 Citations2000Ellen Weisberg, James D. Griffin
The generation of 2 BCR/ABL-positive cell lines that have developed partial resistance to STI571 are reported and the results suggest that resistance toSTI571 may be multifactorial.
JNCI Journal of the National Cancer InstituteIn Vivo Eradication of Human BCR/ABL-Positive Leukemia Cells With an ABL Kinase Inhibitor
378 Citations1999Philipp le Coutre, Luca Mologni +6 more
Evaluated antineoplastic activity of CGP57148B indicates that the continuous block of the oncogenic tyrosine kinase of Bcr/Abl protein is needed to produce important biologic effects in vivo.
The Journal of Experimental MedicineBlockade of the Bcr-Abl Kinase Activity Induces Apoptosis of Chronic Myelogenous Leukemia Cells by Suppressing Signal Transducer and Activator of Transcription 5–Dependent Expression of Bcl-XL
364 Citations2000Machiko Horita, Enrique J. Andreu +6 more
It is shown that the interleukin 3-independent expression of the antiapoptotic protein, Bcl-xL, is induced by Bcr-Abl through activation of signal transducer and activator of transcription (Stat)5.
Blood Cells Molecules and DiseasesInhibition of the ABL Kinase Activity Blocks the Proliferation of BCR/ABL+Leukemic Cells and Induces Apoptosis
319 Citations1997Carlo Gambacorti‐Passerini, Philipp le Coutre +10 more
The activity of CGP57148B on the spontaneous proliferation of both fresh and cultured, leukemic and normal, BCR/ABL positive and negative cells, and its mechanism of action are investigated to support the use of this molecule in initial clinical studies.
PubMedThe dermatofibrosarcoma protuberans-associated collagen type Ialpha1/platelet-derived growth factor (PDGF) B-chain fusion gene generates a transforming protein that is processed to functional PDGF-BB.
289 Citations1999Akira Shimizu, Kerth O’Brien +7 more
It is concluded that the COLIA1/PDGFB fusion associated with DFSP contributes to tumor development through ectopic production of PDGF-BB and the formation of an autocrine loop, and suggests that PDGF receptors could be a target for pharmacological treatment of DFSP and giant cell fibroblastoma, e.g., through the use ofPDGF receptor kinase inhibitors such as CGP57148B.
Leukemia ResearchA new leukemia cell line with philadelphia chromosome characterized as basophil precursors
257 Citations1985Kenji Kishi
This is the first human basophil cell line, and KU812 will be useful in clarifying the mechanism of basophilic differentiation of the stem cells.
CellAlternative signals to RAS for hematopoietic transformation by the BCR-ABL oncogene
255 Citations1995Andrei Goga, Jami McLaughlin +3 more
In vivo tests of malignant potential reveal a most critical role for signals dependent on the BCR-ABL SH2 domain, which is strongly affected by increased dosage of the SHC adapter protein, which can connect tyrosine kinase signals to RAS.
Nature GeneticsAn intramolecular SH3-domain interaction regulates c-Abl activity
217 Citations1998Daniela Barilà, Giulio Superti‐Furga
Evidence is presented for an intramolecular inhibitory interaction of the SH3 domain with the catalytic domain and with the linker between the SH2 and catalyticdomain (SH2-CD linker) that activates and inhibits c-Abl.
PubMedUnpredicted clinical pharmacology of UCN-01 caused by specific binding to human alpha1-acid glycoprotein.
203 Citations1998Eiichi Fuse, Hiromi Tanii +15 more
The results suggest that unusual pharmacokinetics of UCN-01 in humans could be due, at least in part, to its specifically high binding to alpha1-acid glycoprotein.
BloodA Retinoid-Resistant Acute Promyelocytic Leukemia Subclone Expresses a Dominant Negative PML-RARα Mutation
157 Citations1997Wenlin Shao, Laura Benedetti +3 more
RA-resistant subclones of the human APL cell line, NB4, are developed and data is provided supporting the presence of an RAR alpha-mediated pathway that is independent from gene expression induced or repressed by PML-RAR alpha.
BloodAmplification of the dihydrofolate reductase gene is a mechanism of acquired resistance to methotrexate in patients with acute lymphoblastic leukemia and is correlated with p53 gene mutations
146 Citations1995Erdem Göker, Mark Waltham +8 more
Low-level DHFR gene amplification may be an important cause of MTX resistance in ALL and strengthens the concept that mutations in the p53 gene may lead to gene amplification as a consequence of defective cell cycle control.
BloodOccurrence of resistance to retinoic acid in the acute promyelocytic leukemia cell line NB4 is associated with altered expression of the pml/RAR alpha protein
108 Citations1993Said Dermime, F Grignani +9 more
It is concluded that the occurrence of resistance to ATRA in the NB4.306 cell line is closely associated to the loss of expression of the intact pml/RAR alpha protein.
BloodConstitutive Degradation of PML/RAR Through the Proteasome Pathway Mediates Retinoic Acid Resistance
70 Citations1999Mirco Fanelli, Saverio Minucci +4 more
Results indicate that constitutive degradation of PML/RARalpha protein may lead to RA resistance and that PML or RARalpha expression is crucial to convey RA sensitivity to APL cells.
ElectrophoresisFormulations for immobilized pH gradients including pH extremes
59 Citations1989Elisabetta Gianazza, F. Celentano +3 more
Formulations are given both for narrow and wide range immobilized pH gradients, spanning between pH 2.5 and pH 11.5, and the contribution from water to the buffering power (β) at these pH extremes requires the recipes to be optimized for each desired level of βav.
PubMedAbsorption of various erythromycin esters and salts in mice after intragastric intubation.
4 Citations1992P J Vainio, Matti Viluksela +1 more
In addition to sufficient lipophilicity, the optimum absorption of erythromycin esters seems to require a high hydrophilicity.
