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Hydroxyurea-Induced miRNA Expression in Sickle Cell Disease Patients in Africa.


ABSTRACT: Hydroxyurea (HU) is clinically beneficial in sickle cell disease (SCD) through fetal hemoglobin (HbF) induction; however, the mechanism of HU is not yet fully elucidated. Selected miRNAs have been associated with HU-induced HbF production. We have investigated differential HU-induced global miRNA expression in peripheral blood of adult SCD patients in patients from Congo, living in South Africa. We found 22 of 798 miRNAs evaluated that were differentially expressed under HU treatment, with the majority (13/22) being functionally associated with HbF-regulatory genes, including BCL11A (miR-148b-3p, miR-32-5p, miR-340-5p, and miR-29c-3p), MYB (miR-105-5p), and KLF-3 (miR-106b-5), and SP1 (miR-29b-3p, miR-625-5p, miR-324-5p, miR-125a-5p, miR-99b-5p, miR-374b-5p, and miR-145-5p). The preliminary study provides potential additional miRNA candidates for therapeutic exploration.

SUBMITTER: Mnika K 

PROVIDER: S-EPMC6568309 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Hydroxyurea-Induced miRNA Expression in Sickle Cell Disease Patients in Africa.

Mnika Khuthala K   Mazandu Gaston K GK   Jonas Mario M   Pule Gift D GD   Chimusa Emile R ER   Hanchard Neil A NA   Wonkam Ambroise A  

Frontiers in genetics 20190528


Hydroxyurea (HU) is clinically beneficial in sickle cell disease (SCD) through fetal hemoglobin (HbF) induction; however, the mechanism of HU is not yet fully elucidated. Selected miRNAs have been associated with HU-induced HbF production. We have investigated differential HU-induced global miRNA expression in peripheral blood of adult SCD patients in patients from Congo, living in South Africa. We found 22 of 798 miRNAs evaluated that were differentially expressed under HU treatment, with the m  ...[more]

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