BIBR 1532 Increases Arsenic Trioxide-mediated Apoptosis in Acute Promyelocytic Leukemia Cells: Therapeutic Potential for APL

ISSN: 1875-5992 (Online)
ISSN: 1871-5206 (Print)

Volume 16, 12 Issues, 2016

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Anti-Cancer Agents in Medicinal Chemistry

Formerly: Current Medicinal Chemistry - Anti-Cancer Agents

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Michelle Prudhomme
Universite Blaise Pascal - C.N.R.S
Aubiere Cedex

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BIBR 1532 Increases Arsenic Trioxide-mediated Apoptosis in Acute Promyelocytic Leukemia Cells: Therapeutic Potential for APL

Anti-Cancer Agents in Medicinal Chemistry, 13(7): 1115-1125.

Author(s): Davood Bashash, Seyed H.Ghaffari, Farhad Zaker, Maryam Kazerani, Kebria Hezave, Saeed Hassani, Masomeh Rostami, Kamran Alimoghaddam and Ardeshir Ghavamzadeh.

Affiliation: Hematology, Oncology and Stem Cell Transplantation Research Center, Shariati Hospital, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.


The current treatment of acute promyelocytic leukemia with arsenic trioxide (ATO) has increased long-lasting complete remissions; however, a proportion of patients continues to die eventually as a result of disease recurrence. In an effort to enhance the effectiveness of the APL treatment, we designed experiments to evaluate the effects of ATO in combination with the lead compound of non-nucleoside inhibitor of telomerase, BIBR 1532. After combined treatments with BIBR 1532 and ATO, decreased cell viability index with a concomitant increase in apoptotic cell death was observed in NB4 leukemic cells. Apoptosis induced by the combined treatments was accompanied by elevated Bax/Bcl-2 molecular ratio and enhanced caspase 3 activation. Our study has also demonstrated that the combined treatment suppressed NB4 cell proliferative capacity and inhibited telomerase activity probably via transcriptional suppression of c-Myc and hTERT. In conclusion, this study may supply insight into the application of this new combination therapy to APL cells intrinsically less sensitive to routine therapies and suggested a novel combination therapy for patients with more aggressive disease; those who may not respond favorably to the arsenic mono-therapy.


Arsenic trioxide, BIBR 1532, Telomerase, Acute promyelocytic leukemia, Apoptosis, Combination therapy.

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Article Details

Volume: 13
Issue Number: 7
First Page: 1115
Last Page: 1125
Page Count: 11
DOI: 10.2174/18715206113139990126
Price: $58

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