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Quantifying small molecule phenotypic effects using mitochondrial morpho-functional fingerprinting and machine

Lionel Blanchet1, Jan A M Smeitink2, Sjenet E van Emst-de Vries3

  • 11] Department of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, P.O. Box 9101, NL-6500 HB Nijmegen, The Netherlands [2] Analytical Chemistry/Chemometrics, Institute for Molecules and Materials, Radboud University, postvak 61P.O. Box 9010, 6500 GL Nijmegen, The Netherlands [3] Centre for Systems Biology and Bioenergetics, Radboud University Medical Center, Nijmegen, The Netherlands [4] Khondrion BV, Philips van Leydenlaan 15, 6525EX Nijmegen, The Netherlands.

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|January 27, 2015
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Summary
This summary is machine-generated.

Researchers developed an AI method to identify mitochondrial defects in Leigh Syndrome (LS) patients. Trolox ornithylamide hydrochloride showed promise in correcting these defects and scavenging reactive oxygen species (ROS).

Area of Science:

  • Biochemistry
  • Cell Biology
  • Neuroscience

Background:

  • Leigh Syndrome (LS) is characterized by mitochondrial complex I deficiency, leading to increased reactive oxygen species (ROS) and altered mitochondrial structure and function.
  • These mitochondrial aberrations are linked therapeutic targets, but identifying effective small molecules is challenging due to their multifaceted effects.

Purpose of the Study:

  • To develop an AI-driven method for discriminating between healthy and LS patient fibroblasts based on mitochondrial phenotype.
  • To evaluate novel Trolox variants as potential therapeutics for LS by assessing their impact on mitochondrial function and ROS levels.

Main Methods:

  • Combined automated image quantification and artificial intelligence (AI) to analyze mitochondrial morpho-functional phenotypes in patient-derived fibroblasts.

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  • Screened newly developed Trolox variants for their efficacy in counterbalancing LS-associated mitochondrial aberrations and ROS levels.

    • Main Results:

    • The AI approach successfully discriminated between healthy and LS patient fibroblasts based on mitochondrial characteristics.
    • Trolox ornithylamide hydrochloride demonstrated significant efficacy, counterbalancing mitochondrial morpho-functional abnormalities.
    • This Trolox variant effectively scavenged ROS and enhanced the activity of mitochondrial complexes I and IV, as well as citrate synthase.

    Conclusions:

    • Trolox-derived antioxidants represent promising therapeutic candidates for human mitochondrial disorders like Leigh Syndrome.
    • The developed AI-based phenotyping method offers a powerful tool for identifying effective therapeutic agents for mitochondrial diseases.