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  1. Research
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  3. Chemical & Biothreat Signatures
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  5. Threat-Agnostic Biodefense

Threat-Agnostic
Biodefense

Going beyond the list

(Image by Jeffrey London | Pacific Northwest National Laboratory)

  • Contraband Detection
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    • Threat-Agnostic Biodefense
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The world is full of unpredictable biological threats that pose extraordinary biodefense challenges. Researchers at Pacific Northwest National Laboratory (PNNL) are exploring how to better leverage our advanced capabilities in measurement science to address these evolving biodefense challenges.

Biodefense that goes beyond lists

Today’s national and international biodefense communities rely on several lists made up of previously known pathogens and biotoxins that have been prioritized as threats to biosafety or public health. These lists include anthrax, smallpox, Ebola, SARS-COV-1, and other agents.

This identification-based approach is valuable for organizing and prioritizing efforts; however, it has limitations when dealing with unknown organisms.

PNNL scientists are rethinking the approach to unknown biological threats. A team of researchers—including experts in epidemiology, data science, pathogen biology, and biomedical science—is proposing a vision for transforming biodefense through a more threat-agnostic approach.

Threat-agnostic biodefense:  Actions to counter biological threats, reduce risks, and prepare for, respond to, and recover from bioincidents that are applicable—whether the pathogens or toxins involved are known in advance or not.

What is threat-agnostic biodefense?

Instead of looking at an unknown biothreat from a list-based perspective and asking, “What is it?”, the threat-agonistic approach more broadly asks, “Is it harmful, and how harmful is it?”—with the goal of understanding commonalities in the ways pathogens attack their hosts, and the common ways hosts respond to these attacks.

Our scientists propose using sophisticated data and graph analytics, advanced measurement technologies, and machine learning to identify common patterns of infection and disease in results from both new and existing multi-omics studies. These patterns could then be used to detect an unknown pathogen and predict the effects of infection of new biothreats, even without prior knowledge of the novel pathogen or biotoxin. In this way, we could have new ways to inform the development of broad-spectrum defenses, to include detection technologies, as well as countermeasures and therapies.

Transforming biodefense beyond the list will enable faster and more effective recognition of, response to, and recovery from biological events.

bioagents
Bioagent-agnostic signatures would reflect perturbations to host processes. Early events in pathogenesis or intoxication from different agents (green circles) are thematically similar. For example, a pathogen or toxin needs to attach and enter a target cell to initiate an infection or intoxication (orange circles). Scientists can employ a variety of tools to interrogate host response to these insults (yellow circles) and identify signals in host processes that they could integrate to form bioagent-agnostic signatures (blue circles). (Illustration by Stephanie King | Pacific Northwest National Laboratory)

Expanding the threat-agnostic biodefense vision

This work is part of a PNNL research objective called Biorisk Beyond the List. In collaboration with National Defense University, PNNL has hosted workshops to invite feedback on the threat-agnostic approach from stakeholders from across the biodefense community and a broad national security audience.

Pacific Northwest National Laboratory and National Defense University collaborated to host a workshop for stakeholders in the biodefense and national security communities. (Video: Pacific Northwest National Laboratory)

We are currently looking for research partners to further the threat-agnostic biodefense vision. If you are interested or have questions about the research objective, email BeyondTheList@pnnl.gov.

News & Publications

MARCH 2, 2022
Journal Article

Engineered Cell Line Imaging Assay Differentiates Pathogenic from Non-Pathogenic Bacteria

Read
MARCH 2, 2022
Journal Article

Proteomic signatures of antimicrobial resistance in Yersinia pestis and Francisella tularensis

Read
JANUARY 11, 2022
Staff Accomplishment

Rethinking the Defense Against Unknown Biothreats

Read
Biorisk beyond the list
DECEMBER 3, 2021
Journal Article

Beyond the List: Bioagent-Agnostic Signatures Could Enable a More Flexible and Resilient Biodefense Posture than an Approach Based on Priority Agent Lists Alone

Read
MAY 9, 2021
Journal Article

The Campylobacter jejuni CiaD effector co-opts the host cell protein IQGAP1 to promote cell entry

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SEPTEMBER 1, 2020
Journal Article

Flying Blind, or Just Flying Under the Radar? The Underappreciated Power of De Novo Methods of Mass Spectrometric Peptide Identification

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OCTOBER 1, 2020
Journal Article

Characterization of Local and Systemic Impact of Whitefly (Bemisia tabaci) Feeding and Whitefly-Transmitted Tomato Mottle Virus Infection on Tomato Leaves by Comprehensive Proteomics

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SEPTEMBER 4, 2020
Journal Article

A porcine ligated loop model reveals new insight into the host immune response against Campylobacter jejuni

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SEPTEMBER 24, 2019
Journal Article

Nipah virus-like particle egress is modulated by both cytoskeletal and vesicular trafficking pathways: a validated particle proteomics analysis

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SEPTEMBER 17, 2019
Journal Article

Stochastic Variation in Expression of the Tricarboxylic Acid Cycle Produces Persister Cells

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JUNE 7, 2019
Journal Article

Prediction of Bacterial E3 Ubiquitin Ligase Effectors using Reduced Amino Acid Peptide Fingerprinting

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NOVEMBER 2, 2018
Journal Article

Individual variability of protein expression in human tissues

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SEPTEMBER 7, 2018
Journal Article

Proteomics Goes to Court: A Statistical Foundation for Forensic Toxin/Organism Identification Using Bottom-Up Proteomics

Read

Contact

Karen Taylor
Technical Advisor
karen.l.taylor@pnnl.gov

PNNL

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