Philadelphia University + Thomas Jefferson University
Sidney Kimmel Medical College
Department of Medicine

Edelstein, Leonard

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Leonard Edelstein

Leonard Edelstein, PhD

Contact Dr. Edelstein

1020 Locust Street
Suite 394
Philadelphia, PA 19107

(215) 955-1797
(215) 955-9170 fax

Research Interests

Dr. Edelstein’s laboratory studies gene expression in megakaryocytes and platelets and their role in cardiovascular disease and thrombopoiesis. Current research includes:

  • Activated platelets release microparticles (MPs) which contain RNA and protein. These MPs have been shown to deliver miRNAs to endothelial cells in culture and alter the level of RNAs in these cells. We are studying the effect of MP-delivered miRNAs  on endothelial cell biology.

  • Genome wide association studies have identified ~50 loci in the human genome associated with heart attacks. However, neither the genetic variant responsible for the increased risk nor the cell type in which it functions has been identified. We are developing methods to identify which locus-linked genes are functional in platelets and the effect the common variants have on their expression and function.

  • Arterial hypertension is associated with thrombotic events due to platelet activation. The exact mechanism by which hypertensive platelets become more sensitive to agonist stimulation is unknown. We have collected platelet miRNA from healthy and pre-hypertensive subjects and found association between miRNA level and blood pressure.  We will use this data to identify differentially expressed genes responsible for the increased function in platelets.


Most Recent Peer-Reviewed Publications

  1. Platelet microparticles infiltrating solid tumors transfer miRNAs that suppress tumor growth
  2. The role of platelet microvesicles in intercellular communication
  3. Identification of a functional genetic variant driving racially dimorphic platelet gene expression of the thrombin receptor regulator, PCTP
  4. TULA-2 (T-Cell Ubiquitin Ligand-2) Inhibits the Platelet Fc Receptor for IgG IIA (FcγRIIA) Signaling Pathway and Heparin-Induced Thrombocytopenia in Mice
  5. Integrative Multi-omic Analysis of Human Platelet eQTLs Reveals Alternative Start Site in Mitofusin 2
  6. MicroRNAs in platelet physiology and function
  7. Anti-miR-148a regulates platelet FcγRIIA signaling and decreases thrombosis in vivo in mice
  8. Common variants in the human platelet PAR4 thrombin receptor alter platelet function and differ by race
  9. MicroRNA expression differences in human hematopoietic cell lineages enable regulated transgene expression
  10. Human platelet microRNA-mRNA networks associated with age and gender revealed by integrated plateletomics
  11. The human platelet: Strong transcriptome correlations among individuals associate weakly with the platelet proteome
  12. Mechanism of race-dependent platelet activation through the protease-activated receptor-4 and Gq signaling axis
  13. Racial differences in human platelet PAR4 reactivity reflect expression of PCTP and miR-376c
  14. MicroRNAs in Platelet Production and Activation
  15. The complex transcriptional landscape of the anucleate human platelet.
  16. MicroRNAs in platelet production and activation
  17. Small RNAs as potential platelet therapeutics
  18. Human genome-wide association and mouse knockout approaches identify platelet supervillin as an inhibitor of thrombus formation under shear stress
  19. High-throughput screening uncovers a compound that activates latent HIV-1 and acts cooperatively with a histone deacetylase (HDAC) inhibitor
  20. MicroRNAs in platelet production and activation