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High-resolution dissection of human cell type-specific enhancers in cis and trans activities.
Genomics
January 2025
Center for Bioinformatics, State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing 100871, PR China. Electronic address:
The spatiotemporal-specific gene expression is regulated by cell-type-specific regulatory elements. Here we selected the H3K4me1-associated DNA sequences as candidate enhancers in two different human cell lines and performed ChIP-STARR-seq to quantify the cell-type-specific enhancer activities with high-resolution. We investigated how the activity landscape of enhancer repository would change when transferred from native cells (cis activity) to another cell lines (trans activity).
View Article and Find Full Text PDFIdentification of potential therapeutic targets for Alzheimer's disease from the proteomes of plasma and cerebrospinal fluid in a multicenter Mendelian randomization study.
Int J Biol Macromol
January 2025
First Operating Room, The First Hospital of Jilin University, Changchun, China. Electronic address:
Background: Certain peripheral proteins are believed to be involved in the development of Alzheimer's disease (AD), but the roles of other new protein biomarkers are still unclear. Current treatments aim to manage symptoms, but they are not effective in stopping the progression of the disease. New drug targets are needed to prevent Alzheimer's disease.
View Article and Find Full Text PDFNanoscale reference and test materials for the validation of characterization methods for engineered nanomaterials - current state, limitations, and needs.
Anal Bioanal Chem
January 2025
Division Biophotonics, Federal Institute for Materials Research and Testing (BAM), Richard-Willstaetter-Str. 11, 12489, Berlin, Germany.
The rational design of engineered nanomaterials (NMs) with improved functionality and their increasing industrial application requires reliable, validated, and ultimately standardized characterization methods for their application-relevant, physicochemical key properties such as size, size distribution, shape, or surface chemistry. This calls for nanoscale (certified) reference materials (CRMs; RMs) and well-characterized reference test materials (RTMs) termed also quality control (QC) samples, assessed, e.g.
View Article and Find Full Text PDFThe proximity-based protein interactome and regulatory logics of the transcription factor p65 NF-κB/RELA.
EMBO Rep
January 2025
Rudolf Buchheim Institute of Pharmacology, Justus Liebig University, Giessen, Germany.
The protein interactome of p65/RELA, the most active subunit of the transcription factor (TF) NF-κB, has not been previously determined in living cells. Using p65-miniTurbo fusion proteins and biotin tagging, we identify >350 RELA interactors from untreated and IL-1α-stimulated cells, including many TFs (47% of all interactors) and >50 epigenetic regulators belonging to different classes of chromatin remodeling complexes. A comparison with the interactomes of two point mutants of p65 reveals that the interactions primarily require intact dimerization rather than DNA-binding properties.
View Article and Find Full Text PDFUse of Remote Regulatory Assessment (RRA) for Site Evaluations during the COVID-19 Pandemic: The USFDA's Office of Study Integrity and Surveillance (OSIS) Perspective.
AAPS PharmSciTech
January 2025
OSIS, Silver Spring, Maryland, U.S.A.
Travel restrictions during the novel coronavirus, SARS-CoV-2 (COVID-19) public health emergency affected the U.S. Food and Drug Administration's (FDA) ability to conduct on-site bioavailability/bioequivalence (BA/BE) and Good Laboratory Practice (GLP) nonclinical inspections.
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