Publication Date:
2011-10-15
Description:
Persistence of human fetal hemoglobin (HbF, alpha(2)gamma(2)) in adults lessens the severity of sickle cell disease (SCD) and the beta-thalassemias. Here, we show that the repressor BCL11A is required in vivo for silencing of gamma-globin expression in adult animals, yet dispensable for red cell production. BCL11A serves as a barrier to HbF reactivation by known HbF inducing agents. In a proof-of-principle test of BCL11A as a potential therapeutic target, we demonstrate that inactivation of BCL11A in SCD transgenic mice corrects the hematologic and pathologic defects associated with SCD through high-level pancellular HbF induction. Thus, interference with HbF silencing by manipulation of a single target protein is sufficient to reverse SCD.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3746545/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3746545/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Xu, Jian -- Peng, Cong -- Sankaran, Vijay G -- Shao, Zhen -- Esrick, Erica B -- Chong, Bryan G -- Ippolito, Gregory C -- Fujiwara, Yuko -- Ebert, Benjamin L -- Tucker, Philip W -- Orkin, Stuart H -- K01 DK093543/DK/NIDDK NIH HHS/ -- T32 CA009172/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2011 Nov 18;334(6058):993-6. doi: 10.1126/science.1211053. Epub 2011 Oct 13.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hematology/Oncology, Children's Hospital Boston and Department of Pediatric Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21998251" target="_blank"〉PubMed〈/a〉
Keywords:
Anemia, Sickle Cell/blood/*genetics/pathology/*therapy
;
Animals
;
Carrier Proteins/genetics/*physiology
;
DNA Methylation
;
Embryo, Mammalian
;
Epigenesis, Genetic
;
Erythroid Cells/metabolism
;
Fetal Hemoglobin/*genetics/metabolism
;
*Gene Expression Regulation
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*Gene Silencing
;
Histones/metabolism
;
Humans
;
Mice
;
Mice, Knockout
;
Mice, Transgenic
;
Molecular Targeted Therapy
;
Nuclear Proteins/genetics/*physiology
;
gamma-Globins/*genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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