Comprehensive Insight into Colorectal Cancer Metabolites and Lipids for Human Serum : A Proof-of-Concept Study

Colorectal cancer (CRC) ranks as the third most frequently diagnosed cancer and the second leading cause of cancer-related deaths. The current endoscopic-based or stool-based diagnostic techniques are either highly invasive or lack sufficient sensitivity. Thus, there is a need for less invasive and more sensitive screening approaches. We, therefore, conducted a study on 64 human serum samples representing three different groups (adenocarcinoma, adenoma, and control) using cutting-edge GC×GC-LR/HR-TOFMS (comprehensive two-dimensional gas chromatography coupled with low/high-resolution time-of-flight mass spectrometry). We analyzed samples with two different specifically tailored sample preparation approaches for lipidomics (fatty acids) (25 μL serum) and metabolomics (50 μL serum). In-depth chemometric screening with supervised and unsupervised approaches and metabolic pathway analysis were applied to both datasets. A lipidomics study revealed that specific PUFA (ω-3) molecules are inversely associated with increased odds of CRC, while some PUFA (ω-6) analytes show a positive correlation. The metabolomics approach revealed downregulation of amino acids (alanine, glutamate, methionine, threonine, tyrosine, and valine) and myo-inositol in CRC, while 3-hydroxybutyrate levels were increased. This unique study provides comprehensive insight into molecular-level changes associated with CRC and allows for a comparison of the efficiency of two different analytical approaches for CRC screening using same serum samples and single instrumentation.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

International journal of molecular sciences - 24(2023), 11 vom: 01. Juni

Sprache:

Englisch

Beteiligte Personen:

Bhatt, Kinjal [VerfasserIn]
Orlando, Titziana [VerfasserIn]
Meuwis, Marie-Alice [VerfasserIn]
Louis, Edouard [VerfasserIn]
Stefanuto, Pierre-Hugues [VerfasserIn]
Focant, Jean-François [VerfasserIn]

Links:

Volltext

Themen:

Blood
Chemometrics
Colorectal cancer
Comprehensive gas chromatography
Fatty Acids
GC×GC–TOFMS
Journal Article
Lipidomics
Mass spectrometry
Metabolomics
Sample preparation
Separation science
Serum

Anmerkungen:

Date Completed 12.06.2023

Date Revised 12.06.2023

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms24119614

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM358003229