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Phage ImmunoPrecipitation Sequencing (PhIP-Seq) is a recently developed technology to assess antibody reactivity, quantifying antibody binding towards hundreds of thousands of candidate epitopes. The output from PhIP-Seq experiments are read count matrices, similar to RNA-Seq data; however some important differences do exist. In this manuscript we investigated whether the publicly available method edgeR (Robinson et al., Bioinformatics 26(1):139-140, 2010) for normalization and analysis of RNA-Seq data is also suitable for PhIP-Seq data. We find that edgeR is remarkably effective, but improvements can be made and introduce a Bayesian framework specifically tailored for data from PhIP-Seq experiments (Bayesian Enrichment Estimation in R, BEER).
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http://dx.doi.org/10.1186/s12864-022-08869-y | DOI Listing |
J Control Release
September 2025
Department of Liver Surgery and Transplantation, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China. Electronic address:
Purpose: This study aims to develop and validate a novel ACSL4-targeted fluorescent probe to enhance intraoperative visualization of hepatocellular carcinoma (HCC), emphasizing its binding affinity, specificity, and clinical applicability.
Methods: Transcriptomic sequencing data from TCGA, ICGC, CPTAC, and GSE25097 were analyzed to establish ACSL4 as a viable target for tumor visualization. An ACSL4-specific binding peptide (ABP) was identified using a combination of in vivo and in vitro phage display screening.
Sheng Wu Gong Cheng Xue Bao
August 2025
College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, China.
Phage immunoprecipitation sequencing (PhIP-Seq) is a high-throughput and low-cost method for analyzing the specific binding of target proteins to peptide libraries. The method uses oligonucleotide library synthesis (OLS) to encode proteome-scale peptide libraries for display on phages, and then immunoprecipitates these library phages with target proteins (such as antibodies) for subsequent analysis by high-throughput DNA sequencing. PhIP-Seq enables the screening of peptide targets that react specifically with hundreds of proteins or pathogens.
View Article and Find Full Text PDFBrain Behav Immun
August 2025
Institute for Cell Engineering, Division of Immunology, Department of Pathology, Johns Hopkins University, Baltimore, MD, USA. Electronic address:
Herpes simplex encephalitis (HSE) patients may develop secondary anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis (NMDARE), associated with worsened long-term neurological outcome. Immunosuppressive treatment can limit NMDAR autoantibody-mediated pathology, but early predictive biomarkers for the risk of NMDARE are lacking. In a multicenter study, we performed unbiased antibody reactome profiling using Phage ImmunoPrecipitation Sequencing (PhIP-Seq).
View Article and Find Full Text PDFJ Biol Chem
August 2025
Program in Cellular and Molecular Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Cell and Chemical Biology, Leiden University Medical Center, Leiden, The Netherlands. Electronic address:
Interferon-induced ubiquitin (Ub)-like modifier Interferon Stimulated Gene 15 (ISG15) functions both intracellularly and as a secreted protein with cytokine-like properties. The ISG15 pathway is implicated in various diseases, including cancer and inflammatory disorders, but understanding its precise roles has been challenging because of limited availability of tools to study ISG15 biology. Here, we report the development of two novel nanobodies that target human ISG15, obtained through alpaca immunization and phage display.
View Article and Find Full Text PDFGut
July 2025
Department of Gastroenterology and Hepatology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands
Background: The development of IBD is known to involve early immunological alterations, but our understanding of the changes in antibody epitope repertoires moving from the prediagnostic phase towards disease onset remains incomplete.
Objective: In this study, we comprehensively characterised systemic antibody responses in patients with IBD before and after disease onset, aiming to identify prediagnostic disease biomarkers.
Design: Within Lifelines, a population-based cohort study collecting and storing longitudinal samples from 167 000 individuals over∼15 years, we identified 178 individuals with blood samples taken both before and after IBD-onset.