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An in vivo multiplexed small-molecule screening platform.

Barbara M Grüner1, Christopher J Schulze2, Dian Yang3

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Summary

Researchers developed a novel in vivo screening method using molecular cell barcoding to identify small molecules regulating cellular functions. This approach identified lipase ABHD6 as a key regulator of pancreatic cancer metastasis.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Phenotype-based small-molecule screening is crucial for identifying regulators of cellular functions.
  • In vitro screening methods often fail to replicate complex physiological and disease conditions.
  • There is a need for advanced screening platforms that enable in vivo analysis.

Purpose of the Study:

  • To develop and apply a molecular cell barcoding technique for direct in vivo phenotypic screening of small-molecule libraries.
  • To identify small molecules that impact pancreatic cancer metastatic seeding.
  • To investigate the role of specific enzymes in cancer metastasis.

Main Methods:

  • Utilized molecular cell barcoding for multiplexed in vivo phenotypic screening.
  • Screened over 700 covalent inhibitors targeting hydrolases.
  • Employed pharmacological and genetic approaches to validate findings.

Main Results:

  • Successfully screened a library of >700 covalent hydrolase inhibitors in vivo.
  • Identified multiple small-molecule inhibitors affecting pancreatic cancer metastatic seeding.
  • Confirmed lipase ABHD6 as a critical target regulating metastatic fitness.

Conclusions:

  • The developed molecular cell barcoding platform enables rapid and efficient in vivo screening.
  • Lipase ABHD6 is a significant regulator of pancreatic cancer metastatic potential.
  • This platform is applicable for studying complex biological processes in vivo.