Transient abnormal megakaryocytic hyperplasia secondary to all-trans retinoic acid therapy
نویسندگان
چکیده
منابع مشابه
All-trans-retinoic acid: measurement
A quantitative determination of physiological levels of all-trans-retinoic acid (vitamin A acid) in human serum has been developed. A double-phase extraction of 3.5 ml of serum followed by a specific and sensitive high performance liquid chromatography procedure allowed measurement of levels down to 1 ng/ml. Serum concentrations in 37 fasting volunteers ranged from 2.7 to 4.2 ng/ml and fitted a...
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Hematology-Oncology Department Ospedali Riuniti Largo Barozzi, 1 24128 Bergamo (Italy) Tel. 39 035 269492, Fax 39 035 266659 E-Mail [email protected] All-trans-retinoic acid (ATRA) inhibits cell growth and proliferation by inducing cyto-differentiation and/or apoptosis in several cell types. These effects have become a therapeutic objective in human cancers. In addition to these functions, ...
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A 5-year-old girl presented with fever, skin and mucosal bleeds, and pallor. Her hemoglobin was 3.6 g/dL, total white cell count 4.5×103/μL and platelet count 13×103/μL. Peripheral smear revealed 30% blasts, confirmed as APML on bone marrow examination. Cytogenetic analysis showed the typical translocation of t(15:17) with 77% of interphase cells expressing PML:RARA gene fusion. Child was start...
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The discovery of the biological activity of 9-cis-retinoic acid raises questions as to its mode of biosynthesis. A simple mechanism involves the direct isomerization of all-trans-retinoic acid to 9-cis-retinoic acid. It is shown here that bovine liver membranes, but not supernatant fractions, can isomerize all-trans-retinoic acid into 9-cis-retinoic acid and 13-cis-retinoic acid. The concentrat...
متن کاملMolecular evaluation of response to all-trans-retinoic acid therapy in patients with acute promyelocytic leukemia.
The advent of retinoic acid (RA) in the treatment of acute promyelocytic leukemia (APL) has led to a high frequency of short-lasting complete remissions (CR). We studied the response to RA by molecularly analyzing the RA receptor alpha (RAR alpha) locus, which has recently been shown to be rearranged in all APLs. Southern blot analysis demonstrated that the RAR alpha rearrangements persisted in...
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ژورنال
عنوان ژورنال: Indian Journal of Pathology and Microbiology
سال: 2012
ISSN: 0377-4929
DOI: 10.4103/0377-4929.97911