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Updated: Feb 6, 2026

High-throughput Identification of Synergistic Drug Combinations by the Overlap2 Method
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Published on: May 21, 2018

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Synergistic Effect of Simvastatin and Romidepsin on Gamma-globin Gene Induction

Hussain Habibi1, Amir Atashi1, Saeid Abroun1

  • 1Department of Hematology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran.

Cell Journal
|August 21, 2018
PubMed

Insights

Combining Simvastatin and Romidepsin significantly boosts fetal hemoglobin (HbF) production. This dual therapy may offer a new treatment for beta-thalassemia and sickle cell disease (SCD) by reactivating gamma-globin genes.

Area of Science:

  • Hematology
  • Pharmacology
  • Genetics

Background:

  • Beta-thalassemia and sickle cell disease (SCD) are inherited hemoglobinopathies.
  • Gamma-globin gene reactivation can alleviate disease symptoms.
  • Fetal hemoglobin (HbF) induction is a therapeutic strategy for these disorders.

Purpose of the Study:

  • To investigate the synergistic effects of Simvastatin (SIM) and Romidepsin (ROM) in inducing fetal hemoglobin (HbF).
  • To evaluate SIM as a BCL11a inhibitor and ROM as a HDAC inhibitor for HbF induction.

Main Methods:

  • CD34+ cells were isolated from cord blood samples.
  • Cells were cultured in erythroid differentiation medium with SIM and ROM.
  • Gamma-globin, BCL11a, and HDAC gene expression were analyzed using real-time PCR and immunocytochemistry.

Main Results:

  • Combination therapy with SIM and ROM significantly increased Gamma-globin gene expression.
  • The drug combination led to a 3.09-fold increase in HbF production compared to controls.
  • SIM inhibited BCL11a expression, and ROM inhibited HDAC1 expression, key regulators of HbF.

Conclusions:

  • Combined SIM and ROM therapy shows potential for ameliorating clinical manifestations of beta-thalassemia and SCD.
  • This combination may reduce side effects and decrease the need for blood transfusions.
  • Further research into this synergistic approach is warranted for hemoglobinopathy treatment.
Abstract

Keywords:
Beta-ThalassemiaRomidepsinSickle Cell DiseaseSimvastatin

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