Pathologically expanded peripheral T helper cell subset drives B cells in rheumatoid arthritis

…, JL Marshall, K Slowikowski, CY Fonseka, Y Liu… - Nature, 2017 - nature.com
CD4 + T cells are central mediators of autoimmune pathology; however, defining their key
effector functions in specific autoimmune diseases remains challenging. Pathogenic CD4 + T …

Defining inflammatory cell states in rheumatoid arthritis joint synovial tissues by integrating single-cell transcriptomics and mass cytometry

F Zhang, K Wei, K Slowikowski, CY Fonseka… - Nature …, 2019 - nature.com
To define the cell populations that drive joint inflammation in rheumatoid arthritis (RA), we
applied single-cell RNA sequencing (scRNA-seq), mass cytometry, bulk RNA sequencing (…

Versatile design and synthesis platform for visualizing genomes with Oligopaint FISH probes

…, CY Fonseka, RB McCole, Y Chang… - Proceedings of the …, 2012 - National Acad Sciences
A host of observations demonstrating the relationship between nuclear architecture and
processes such as gene expression have led to a number of new technologies for interrogating …

[HTML][HTML] Single-molecule super-resolution imaging of chromosomes and in situ haplotype visualization using Oligopaint FISH probes

…, C Kim-Kiselak, F Bantignies, CY Fonseka… - Nature …, 2015 - nature.com
Fluorescence in situ hybridization (FISH) is a powerful single-cell technique for studying
nuclear structure and organization. Here we report two advances in FISH-based imaging. We …

[HTML][HTML] PD-1hiCXCR5–T peripheral helper cells promote B cell responses in lupus via MAF and IL-21

…, J Keegan, VS Wacleche, Y Cao, CY Fonseka… - JCI insight, 2019 - ncbi.nlm.nih.gov
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by pathologic
T cell–B cell interactions and autoantibody production. Defining the T cell populations that …

Mixed-effects association of single cells identifies an expanded effector CD4+ T cell subset in rheumatoid arthritis

CY Fonseka, DA Rao, NC Teslovich… - Science translational …, 2018 - science.org
High-dimensional single-cell analyses have improved the ability to resolve complex mixtures
of cells from human disease samples; however, identifying disease-associated cell types or …

Leveraging blood and tissue CD4+ T cell heterogeneity at the single cell level to identify mechanisms of disease in rheumatoid arthritis

CY Fonseka, DA Rao, S Raychaudhuri - Current opinion in immunology, 2017 - Elsevier
… Author links open overlay panel Chamith Y Fonseka 1 2 3 4 5 , Deepak A Rao 1 , … Diogo,
Y. Okada, RM Plenge … Kanno, Y. Furumoto, K. Jiang, SCJ Parker, MR Erdos, SR Davis, R. …

Multimodal single-cell approaches shed light on T cell heterogeneity

A Nathan, Y Baglaenko, CY Fonseka, JI Beynor… - Current opinion in …, 2019 - Elsevier
… Author links open overlay panel Aparna Nathan 1 2 3 4 5 , Yuriy Baglaenko 1 2 3 5 ,
Chamith Y Fonseka 1 2 3 4 5 , Jessica I Beynor 1 2 3 5 , Soumya Raychaudhuri 1 2 3 4 5 6 …

[HTML][HTML] Abnormal dosage of ultraconserved elements is highly disfavored in healthy cells but not cancer cells

RB McCole, CY Fonseka, A Koren, C Wu - PLoS Genetics, 2014 - journals.plos.org
Ultraconserved elements (UCEs) are strongly depleted from segmental duplications and
copy number variations (CNVs) in the human genome, suggesting that deletion or duplication …

[PDF][PDF] Maximizing statistical power to detect differentially abundant cell states with scPOST

N Millard, I Korsunsky, K Weinand, CY Fonseka… - Cell reports …, 2021 - cell.com
To estimate a study design's power to detect differential abundance, we require a framework
that simulates many multi-sample single-cell datasets. However, current simulation …