Publications by authors named "Timothy J Keyes"

Article Synopsis
  • The rise of omic data brings new challenges in how we handle, analyze, and integrate this information, which is crucial for biological research.
  • Bioconductor serves as a comprehensive platform for community-driven analysis of biological data, while tidy R programming introduces an innovative approach for organizing and manipulating data.
  • The tidyomics software ecosystem connects Bioconductor with tidy R practices, aiming to simplify omic analysis and facilitate collaboration across different scientific disciplines, as evidenced by its successful application in analyzing a large dataset from the Human Cell Atlas.
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Article Synopsis
  • - The increasing amount of omic data creates challenges in how to manage, analyze, and integrate this information.
  • - Bioconductor offers a community-driven platform for biological data analysis, while tidy R programming introduces a new standard for organizing and manipulating data.
  • - This software ecosystem connects Bioconductor with tidy R, aiming to simplify omic analysis and foster collaborations, demonstrated through the analysis of 7.5 million cells from the Human Cell Atlas.
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Summary: While many algorithms for analyzing high-dimensional cytometry data have now been developed, the software implementations of these algorithms remain highly customized-this means that exploring a dataset requires users to learn unique, often poorly interoperable package syntaxes for each step of data processing. To solve this problem, we developed {tidytof}, an open-source R package for analyzing high-dimensional cytometry data using the increasingly popular 'tidy data' interface.

Availability And Implementation: {tidytof} is available at https://github.

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Childhood cancer is the second leading cause of death in children aged 1 to 14. Although survival rates have vastly improved over the past 40 years, cancer resistance and relapse remain a significant challenge. Advances in single-cell technologies enable dissection of tumors to unprecedented resolution.

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The increasing use of mass cytometry for analyzing clinical samples offers the possibility to perform comparative analyses across public datasets. However, challenges in batch normalization and data integration limit the comparison of datasets not intended to be analyzed together. Here, we present a data integration strategy, CytofIn, using generalized anchors to integrate mass cytometry datasets from the public domain.

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We report the case of a patient with X-linked severe combined immunodeficiency (X-SCID) who survived for over 20 years without hematopoietic stem cell transplantation (HSCT) because of a somatic reversion mutation. An important feature of this rare case included the strategy to validate the pathogenicity of a variant of the IL2RG gene when the T and B cell lineages comprised only revertant cells. We studied the X-inactivation of sorted T cells from the mother to show that the pathogenic variant was indeed the cause of his SCID.

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The application of machine learning and artificial intelligence to high-dimensional cytometry data sets has increasingly become a staple of bioinformatic data analysis over the past decade. This is especially true in the field of cancer biology, where protocols for collecting multiparameter single-cell data in a high-throughput fashion are rapidly developed. As the use of machine learning methodology in cytometry becomes increasingly common, there is a need for cancer biologists to understand the basic theory and applications of a variety of algorithmic tools for analyzing and interpreting cytometry data.

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Background: Daily, oral pre-exposure prophylaxis (PrEP) is an effective and safe prevention strategy for people at risk for HIV. However, prescription of PrEP has been limited for patients at the highest risk. Disparities in PrEP prescription are pronounced among racial and gender minority patients.

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One of the characteristics of the central nervous system is the lack of a classical lymphatic drainage system. Although it is now accepted that the central nervous system undergoes constant immune surveillance that takes place within the meningeal compartment, the mechanisms governing the entrance and exit of immune cells from the central nervous system remain poorly understood. In searching for T-cell gateways into and out of the meninges, we discovered functional lymphatic vessels lining the dural sinuses.

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