نتایج جستجو برای: پروتئین انسانی bcl11a
تعداد نتایج: 55730 فیلتر نتایج به سال:
چکید ه سابقه و هدف سطح بالای هموگلوبین جنینی (hbf) تأثیر عمده ای بر تالاسمی بتا دارد به طوری که افزایش تولید hbf ، شدت بیماری را کاهش می دهد. سه لوکوس hbs1l–myb در کروموزوم 6q23 ، bcl11a در کروموزوم 2p16 و ژن گاماگلوبین با افزایش سطح hbf در بیماران مبتلا به تالاسمی در ارتباط می باشند . در مطالعه کنونی، ارتباط برخی پلی مورفیسم های افزایش دهنده سطح hbf در بیماران مبتلا به تالاسمی و افراد سالم...
برای مطالعه تاثیر زمینه ژنتیکی ناحیه لوکوس کنترل بیان ژن گلوبین بر روی نقش تغییر دهنده فنوتیپی پلی مورفیسم های bcl11a،100بیمار مبتلا به تالاسمی که 48 نفر هوموزیگوت برای الل a و 52 نفر هوموزیگوت برای الل g در ناحیه پالیندرومیک 5’hs4 بودند، برای دو پلی مورفیسم تک نوکلئوتیدی bcl11a (rs11886868 و rs766432) در ناحیه اینترونی این ژن، تعیین ژنوتیپ شدند. همچنین تاثیر این پلی مورفیسم ها بر روی تنوع hbf ...
B-cell lymphoma 11A (BCL11A) downregulation in human primary adult erythroid progenitors results in elevated expression of fetal γ-globin. Recent reports showed that BCL11A expression is activated by KLF1, leading to γ-globin repression. To study regulation of erythropoiesis and globin expression by KLF1 and BCL11A in an in vivo model, we used mice carrying a human β-globin locus transgene with...
Bcl11a is a transcription factor known to regulate lymphoid and erythroid development. Recent bioinformatic analysis of global gene expression patterns has suggested a role for Bcl11a in the development of dendritic cell (DC) lineages. We tested this hypothesis by analyzing the development of DC and other lineages in Bcl11a (-/-) mice. We found that Bcl11a was required for expression of IL-7 re...
Human fetal hemoglobin expression is regulated by the developmental stage-specific repressor BCL11A.
Differences in the amount of fetal hemoglobin (HbF) that persists into adulthood affect the severity of sickle cell disease and the beta-thalassemia syndromes. Genetic association studies have identified sequence variants in the gene BCL11A that influence HbF levels. Here, we examine BCL11A as a potential regulator of HbF expression. The high-HbF BCL11A genotype is associated with reduced BCL11...
Reactivation of fetal hemoglobin (HbF) in adults ameliorates the severity of the common β-globin disorders. The transcription factor BCL11A is a critical modulator of hemoglobin switching and HbF silencing, yet the molecular mechanism through which BCL11A coordinates the developmental switch is incompletely understood. Particularly, the identities of BCL11A cooperating protein complexes and the...
B cell CLL/lymphoma 11A (BCL11A) is a transcription factor and regulator of hemoglobin switching that has emerged as a promising therapeutic target for sickle cell disease and thalassemia. In the hematopoietic system, BCL11A is required for B lymphopoiesis, yet its role in other hematopoietic cells, especially hematopoietic stem cells (HSCs) remains elusive. The extensive expression of BCL11A i...
BACKGROUND B cell chronic lymphocytic leukemia/lymphoma 11 A (BCL11A) is associated with human B cell malignancy initiation. Our previous study has shown that downregulation of BCL11A mRNA by small interfering RNA (siRNA) is capable of inducing apoptosis in the SUDHL6 cell line. To further explore the effects of BCL11A siRNA on the enhanced cytotoxicity of a chemotherapeutic drug, we investigat...
Triple-negative breast cancer (TNBC) has poor prognostic outcome compared with other types of breast cancer. The molecular and cellular mechanisms underlying TNBC pathology are not fully understood. Here, we report that the transcription factor BCL11A is overexpressed in TNBC including basal-like breast cancer (BLBC) and that its genomic locus is amplified in up to 38% of BLBC tumours. Exogenou...
The B cell leukemia 11A protein (BCL11A/Evi9/CTIP1) has been implicated in hematopoietic cell development and malignancies. BCL11A is a transcriptional repressor that binds directly to a GC-rich motif and is also recruited to a promoter template via interaction with the orphan nuclear receptor, chicken ovalbumin upstream promoter transcription factor II. In both cases, BCL11A-mediated transcrip...
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