BMJ open
Authors: Warner F, Dhruva SS, Ross JS, Dey P, Murugiah K, Krumholz HM
PloS one
Authors: Atreya CE, Kubo A, Borno HT, Rosenthal B, Campanella M, Rettger JP, Joseph G, Allen IE, Venook AP, Altschuler A, Dhruva A
JAMA
Authors: Sedrakyan A, Dhruva SS, Sun T, Mao J, Gaudino MFL, Redberg RF
Diabetes, obesity & metabolism
Authors: Zullo AR, Hersey M, Lee Y, Sharmin S, Bosco E, Daiello LA, Shah NR, Mor V, Boscardin WJ, Berard-Collins CM, Dore DD, Steinman MA
International journal of cardiology
Authors: Fujikura K, Peltzer B, Tiwari N, Shim HG, Dinhofer AB, Shitole SG, Kizer JR, Garcia MJ
JAMA neurology
Authors: Bayen E, Possin KL, Chen Y, Cleret de Langavant L, Yaffe K
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry
Authors: Barry LC, Steffens DC, Covinsky KE, Conwell Y, Li Y, Byers AL
American journal of kidney diseases : the official journal of the National Kidney Foundation
Authors: Abraham AG, Shafi T, Tighiouart H, Moseley KF, Post WS, Inker LA, Coresh J, Shlipak MG, Levey AS
The International journal of eating disorders
Authors: Nagata JM, Garber AK, Tabler J, Murray SB, Vittinghoff E, Bibbins-Domingo K
Volume 361 of Issue 6399 | Science (New York, N.Y.)
Authors: Grevet JD, Lan X, Hamagami N, Edwards CR, Sankaranarayanan L, Ji X, Bhardwaj SK, Face CJ, Posocco DF, Abdulmalik O, Keller CA, Giardine B, Sidoli S, Garcia BA, Chou ST, Liebhaber SA, Hardison RC, Shi J, Blobel GA
Increasing fetal hemoglobin (HbF) levels in adult red blood cells provides clinical benefit to patients with sickle cell disease and some forms of β-thalassemia. To identify potentially druggable HbF regulators in adult human erythroid cells, we employed a protein kinase domain-focused CRISPR-Cas9-based genetic screen with a newly optimized single-guide RNA scaffold. The screen uncovered the heme-regulated inhibitor HRI (also known as EIF2AK1), an erythroid-specific kinase that controls protein translation, as an HbF repressor. HRI depletion markedly increased HbF production in a specific manner and reduced sickling in cultured erythroid cells. Diminished expression of the HbF repressor BCL11A accounted in large part for the effects of HRI depletion. Taken together, these results suggest HRI as a potential therapeutic target for hemoglobinopathies.
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