Related Experiment Video
Updated: Aug 12, 2025
VDJ-Seq: Deep Sequencing Analysis of Rearranged Immunoglobulin Heavy Chain Gene to Reveal Clonal Evolution Patterns of B Cell Lymphoma
Published on: December 28, 2015
Biased Clonal Evolution in Acute Promyelocytic Leukemia through Imbalances Affecting the der(17) but Not the der(15)
Adriana García-Romero1,2, Rosa María González-Arreola1,2, César Borjas-Gutiérrez3
1Doctorado en Genética Humana, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico.
Abstract:
Acute promyelocytic leukemia (APL) is characterized by the chromosomal translocation t(15;17)(q24;q21), raising two hybrid genes: PML::RARA and RARA::PML. There is a biased clonal evolution in APL since imbalances affecting the der(15) chromosome (the one that carries the transforming PML::RARA gene) have never been reported; instead, imbalances of the der(17), mainly in form of an ider(17)(q10), have been repeatedly documented. We here present two cases with APL who acquired an ider(17)(q10) as a secondary chromosomal change. The presence of the ider(17)(q10) implies several genomic consequences with potential to fuel tumor progression: (1) a duplication of the hybrid gene RARA::PML; (2) a cumulative haploinsufficiency for tumor suppressor genes located in the 17p arm; and (3) a cumulative triplosensitivity of genes located in 17q10→RARA::PML→15qter. Both our patients were treated following the PETHEMA LPA 2012 protocol with ATRA plus idarubicin and they have had a long event-free survival.
More Related Videos
09:01Flow Cytometry to Estimate Leukemia Stem Cells in Primary Acute Myeloid Leukemia and in Patient-derived-xenografts, at Diagnosis and Follow Up
Published on: March 26, 2018
10:18From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia
Published on: October 19, 2014
Related Concept Videos
01:15Differentiation of Common Myeloid Progenitor Cells
01:21Lineage Commitment