Publications by authors named "Zahra Takki Chebihi"

Background: Recurrent genetic abnormalities affecting pivotal signaling pathways are the hallmark of childhood acute lymphoblastic leukemia (ALL). The identification of these aberrations remains clinically important. Therefore, we sought to determine the cytogenetic profile and the mutational status of TP53 and RAS genes among Moroccan childhood cases of ALL.

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Background: TP53 gene plays a pivotal role in maintaining genetic stability and prevention of malignancies. Alterations of this gene are implicated in more than half of human cancers. To the best of our knowledge, this study is the first to explore TP53 polymorphisms in Moroccan childhood acute lymphoblastic leukemia (ALL).

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Acute leukemias are often of myeloid or lymphoid origin. However, some acute leukemias revealed an undefined differentiation into a single lineage. Mixed phenotype acute leukemia (MPAL) is an uncommon diagnosis were blasts can share B/T/myeloid phenotype.

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In this work, we present the first case of a Ph-positive ALL Moroccan girl with (9;22)(q34;q11) and monosomy-7. She was diagnosed with Ph-positive ALL based on bone marrow examination, immunophenotyping, and cytogenetic analysis. She relapsed after treatment with the persistence of the Ph chromosome and the appearance of a monosomy-7.

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Background: Acute lymphoblastic leukemia (ALL) is the most common malignancy in children, with a peak incidence at 2 to 3 years of age and accounting for almost 30% of all cancers in this age group. It is well established that the identification of cytogenetic abnormalities is highly relevant for the prognosis of and therapeutic decisions in ALL. The purpose of the present study was to define the frequency of recurrent chromosomal abnormalities of ALL in Moroccan patients referred exclusively to the BIOLAB Laboratory of the Children's Hospital of Rabat during a 4-year period and compare our findings to the reported data.

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