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Institution

Boston Children's Hospital

HealthcareBoston, Massachusetts, United States
About: Boston Children's Hospital is a healthcare organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Population & Transplantation. The organization has 165409 authors who have published 215589 publications receiving 6885627 citations.


Papers
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Journal ArticleDOI
TL;DR: In a mouse model of a lethal congenital lung disease caused by a lack of surfactant protein B (SP-B), twice weekly local application of an aerosol of modified SP-B mRNA to the lung restored 71% of the wild-type SP- B expression, and treated mice survived until the predetermined end of the study after 28 days.
Abstract: Current viral vectors for gene therapy are associated with serious safety concerns, including leukemogenesis, and nonviral vectors are limited by low gene transfer efficiency. Here we investigate the therapeutic utility of chemically modified mRNA as an alternative to DNA-based gene therapy. A combination of nucleotide modifications abrogates mRNA interaction with Toll-like receptor (TLR)3, TLR7, TLR8 and retinoid-inducible gene I (RIG-I), resulting in low immunogenicity and higher stability in mice. A single intramuscular injection of modified murine erythropoietin mRNA raises the average hematocrit in mice from 51.5% to 64.2% after 28 days. In a mouse model of a lethal congenital lung disease caused by a lack of surfactant protein B (SP-B), twice weekly local application of an aerosol of modified SP-B mRNA to the lung restored 71% of the wild-type SP-B expression, and treated mice survived until the predetermined end of the study after 28 days.

787 citations

Journal ArticleDOI
TL;DR: In children who are born very preterm, cognitive and neuromotor impairments at 5 years of age increase with decreasing gestational age, and prevention of the learning disabilities associated with cognitive deficiencies in this group is an important goal for modern perinatal care.

786 citations

Journal ArticleDOI
11 Nov 2011-Cell
TL;DR: It is reported that the plasma membrane localized Pattern Recognition Receptor (PRR) CD14 is required for the microbe-induced endocytosis of TLR4, and this innate immune trafficking cascade illustrates how pathogen detection systems operate to induce both membrane transport and signal transduction.

785 citations

Journal ArticleDOI
24 May 1991-Science
TL;DR: This probe provides a means with which to analyze fragile X pedigrees and is a diagnostic reagent for the fragile X genotype.
Abstract: DNA sequences have been located at the fragile X site by in situ hybridization and by the mapping of breakpoints in two somatic cell hybrids that were constructed to break at the fragile site. These hybrids were found to have breakpoints in a common 5-kilobase Eco RI restriction fragment. When this fragment was used as a probe on the chromosomal DNA of normal and fragile X genotype individuals, alterations in the mobility of the sequences detected by the probe were found only in fragile X genotype DNA. These sequences were of an increased size in all fragile X individuals and varied within families, indicating that the region was unstable. This probe provides a means with which to analyze fragile X pedigrees region was unstable. This probe provides a means with which to analyze fragile X pedigrees and is a diagnostic reagent for the fragile X genotype

784 citations

Journal ArticleDOI
19 May 2011-Nature
TL;DR: The results indicate that 5hmC has a probable role in transcriptional regulation, and suggest a model in which5hmC contributes to the ‘poised’ chromatin signature found at developmentally-regulated genes in ES cells.
Abstract: 5-hydroxymethylcytosine (5hmC) is a modified base present at low levels in diverse cell types in mammals. 5hmC is generated by the TET family of Fe(II) and 2-oxoglutarate-dependent enzymes through oxidation of 5-methylcytosine (5mC). 5hmC and TET proteins have been implicated in stem cell biology and cancer, but information on the genome-wide distribution of 5hmC is limited. Here we describe two novel and specific approaches to profile the genomic localization of 5hmC. The first approach, termed GLIB (glucosylation, periodate oxidation, biotinylation) uses a combination of enzymatic and chemical steps to isolate DNA fragments containing as few as a single 5hmC. The second approach involves conversion of 5hmC to cytosine 5-methylenesulphonate (CMS) by treatment of genomic DNA with sodium bisulphite, followed by immunoprecipitation of CMS-containing DNA with a specific antiserum to CMS. High-throughput sequencing of 5hmC-containing DNA from mouse embryonic stem (ES) cells showed strong enrichment within exons and near transcriptional start sites. 5hmC was especially enriched at the start sites of genes whose promoters bear dual histone 3 lysine 27 trimethylation (H3K27me3) and histone 3 lysine 4 trimethylation (H3K4me3) marks. Our results indicate that 5hmC has a probable role in transcriptional regulation, and suggest a model in which 5hmC contributes to the 'poised' chromatin signature found at developmentally-regulated genes in ES cells.

782 citations


Authors

Showing all 165661 results

NameH-indexPapersCitations
Walter C. Willett3342399413322
Frederick E. Shelton3271485295883
Robert Langer2812324326306
Graham A. Colditz2611542256034
Frank B. Hu2501675253464
George M. Whitesides2401739269833
Eugene Braunwald2301711264576
Ralph B. D'Agostino2261287229636
Mark J. Daly204763304452
Eric B. Rimm196988147119
Virginia M.-Y. Lee194993148820
Bernard Rosner1901162147661
Stuart H. Orkin186715112182
Mark Hallett1861170123741
Ralph Weissleder1841160142508
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202380
2022442
202119,543
202016,558
201913,868
201812,020