Conexiant
Login
  • The Analytical Scientist
  • The Cannabis Scientist
  • The Medicine Maker
  • The Ophthalmologist
  • The Pathologist
  • The Traditional Scientist
The Pathologist
  • Explore Pathology

    Explore

    • Latest
    • Insights
    • Case Studies
    • Opinion & Personal Narratives
    • Research & Innovations
    • Product Profiles

    Featured Topics

    • Molecular Pathology
    • Infectious Disease
    • Digital Pathology

    Issues

    • Latest Issue
    • Archive
  • Subspecialties
    • Oncology
    • Histology
    • Cytology
    • Hematology
    • Endocrinology
    • Neurology
    • Microbiology & Immunology
    • Forensics
    • Pathologists' Assistants
  • Training & Education

    Career Development

    • Professional Development
    • Career Pathways
    • Workforce Trends

    Educational Resources

    • Guidelines & Recommendations
    • App Notes

    Events

    • Webinars
    • Live Events
  • Events
    • Live Events
    • Webinars
  • Profiles & Community

    People & Profiles

    • Power List
    • Voices in the Community
    • Authors & Contributors
  • Multimedia
    • Video
    • Podcasts
Subscribe
Subscribe

False

The Pathologist / Issues / 2022 / May / Blockade Biosensors
Biochemistry and molecular biology Precision medicine Screening and monitoring Technology and innovation Molecular Pathology

Blockade Biosensors

New biosensors facilitate urinary detection of immunotherapy response

By Liv Gaskill 05/12/2022 News 1 min read

Share

Immune checkpoint blockade inhibitors have transformed the standard of care for patients battling a wide range of cancers – but why do less than a quarter of patients respond to these drugs? Currently, there is no quick, effective method of finding out whether a patient is responding to treatment. Testing can be performed by either biopsy or CT scan – but both approaches have disadvantages. Biopsies can be painful, invasive, and slow to yield results; scans can be inaccurate because they examine apparent tumor size rather than directly measuring treatment response.

To address this problem, researchers have designed a synthetic biosensor that could enable doctors to quickly identify whether or not a therapy is working – all via noninvasive analysis of proteases in patients’ urine (1). “We reasoned that, if patients are responding to the drug, it means [the] T cells are making proteases, and if they’re not responding, these proteases are not present, so the T cells are not active,” said senior author Gabe Kwong (2).

The sensors attach to an immune checkpoint blockade inhibitor while it travels toward the tumor. When it arrives, proteases from T cells and tumor cells activate the sensors, releasing fluorescent reporters designed to concentrate in urine. “These signals would be diluted in blood and would be very hard to pick up, but everything from your blood gets filtered through the kidneys,” said Kwong (2). “So, when we look at the urine, we get very concentrated signals which increase or decrease corresponding to whether the patients are responding or not.”

Kwong and his colleagues are also investigating machine learning techniques that can distinguish between different types of intrinsic resistance driven by either B2M or JAK1 gene mutations. Ultimately, they hope to differentiate between types of acquired resistance as well, so that patients who begin to exhibit resistance can quickly be moved to a more effective treatment.

Newsletters

Receive the latest pathology news, personalities, education, and career development – weekly to your inbox.

Newsletter Signup Image

References

  1. QD Mac et al., Nat Biomed Eng, 6, 310 (2022). PMID: 35241815.
  2. Jerry Grillo (2022). Available at: https://b.gatech.edu/3KdUNj3.

About the Author(s)

Liv Gaskill

During my undergraduate degree in psychology and Master’s in neuroimaging for clinical and cognitive neuroscience, I realized the tasks my classmates found tedious – writing essays, editing, proofreading – were the ones that gave me the greatest satisfaction. I quickly gathered that rambling on about science in the bar wasn’t exactly riveting for my non-scientist friends, so my thoughts turned to a career in science writing. At Texere, I get to craft science into stories, interact with international experts, and engage with readers who love science just as much as I do.

More Articles by Liv Gaskill

Explore More in Pathology

Dive deeper into the world of pathology. Explore the latest articles, case studies, expert insights, and groundbreaking research.

False

Advertisement

Recommended

False

Related Content

Turning Tides
Biochemistry and molecular biology
Turning Tides

January 9, 2024

3 min read

A new study shows evidence for sustained human-to-human transmission of mpox since 2016

Molecular Spectacular
Biochemistry and molecular biology
Molecular Spectacular

January 8, 2024

1 min read

A look at last year’s most interesting molecular pathology stories

qPCR Infectious Disease Detective
Biochemistry and molecular biology
qPCR: Infectious Disease Detective

January 4, 2024

3 min read

How quantitative polymerase chain reaction really hits the mark in epidemic control and ID detection

Case of the Month
Biochemistry and molecular biology
Case of the Month

January 11, 2022

1 min read

False

The Pathologist
Subscribe

About

  • About Us
  • Work at Conexiant Europe
  • Terms and Conditions
  • Privacy Policy
  • Advertise With Us
  • Contact Us

Copyright © 2025 Texere Publishing Limited (trading as Conexiant), with registered number 08113419 whose registered office is at Booths No. 1, Booths Park, Chelford Road, Knutsford, England, WA16 8GS.