Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis
Background: Gadolinium-based contrast agents (GBCA) are widely used in magnetic resonance imaging (MRI) to enhance image contrast by interacting with water molecules, thus improving diagnostic capabilities. However, understanding the residual accumulation of GBCA in tissues after administration rema...
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2024-12-01
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| author | Chutintorn Somnin Joseph Chamieh Laurent Leclercq Christelle Medina Olivier Rousseaux Hervé Cottet |
| author_facet | Chutintorn Somnin Joseph Chamieh Laurent Leclercq Christelle Medina Olivier Rousseaux Hervé Cottet |
| author_sort | Chutintorn Somnin |
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| description | Background: Gadolinium-based contrast agents (GBCA) are widely used in magnetic resonance imaging (MRI) to enhance image contrast by interacting with water molecules, thus improving diagnostic capabilities. However, understanding the residual accumulation of GBCA in tissues after administration remains an area of active research. This highlights the need for advanced analytical techniques capable of investigating interactions between GBCAs and biopolymers, such as type I collagen, which are abundant in the body. Objective: This study explores the interactions of neutral and charged GBCAs with type I collagen under physiological pH conditions (pH 7.4) using Taylor dispersion analysis (TDA) and frontal analysis continuous capillary electrophoresis (FACCE). Methods: Collagen from bovine achilles tendon was ground using a vibratory ball mill to achieve a more uniform particle size and increased surface area. Laser granulometry was employed to characterize the size distributions of both raw and ground collagen suspensions in water. TDA was used to assess the hydrodynamic radius (<i>R<sub>h</sub></i>) of the soluble collagen fraction present in the supernatant. Results: From the TDA and FACCE results, it was shown that there were no significant interactions between the tested GBCAs and either the ground collagen or its soluble fraction at pH 7.4. Interestingly, we also observed that collagen interacts with filtration membranes, indicating that careful selection of membrane material, or the absence of filtration in the experimental protocol, is essential in interaction studies involving collagen. Conclusion: These findings bring valuable insights into the behavior of GBCAs in biological systems with potential implications for clinical applications. |
| format | Article |
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| language | English |
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| spelling | doaj-art-64f5068a4a6649d2adbb22a2480fc6e22025-08-20T02:01:13ZengMDPI AGPharmaceuticals1424-82472024-12-011712163310.3390/ph17121633Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary ElectrophoresisChutintorn Somnin0Joseph Chamieh1Laurent Leclercq2Christelle Medina3Olivier Rousseaux4Hervé Cottet5IBMM, University of Montpellier, CNRS, ENSCM, 34095 Montpellier, FranceIBMM, University of Montpellier, CNRS, ENSCM, 34095 Montpellier, FranceIBMM, University of Montpellier, CNRS, ENSCM, 34095 Montpellier, FranceGUERBET, Research and Innovation, 16 rue Jean Chaptal, 93600 Aulnay Sous Bois, FranceGUERBET, Research and Innovation, 16 rue Jean Chaptal, 93600 Aulnay Sous Bois, FranceIBMM, University of Montpellier, CNRS, ENSCM, 34095 Montpellier, FranceBackground: Gadolinium-based contrast agents (GBCA) are widely used in magnetic resonance imaging (MRI) to enhance image contrast by interacting with water molecules, thus improving diagnostic capabilities. However, understanding the residual accumulation of GBCA in tissues after administration remains an area of active research. This highlights the need for advanced analytical techniques capable of investigating interactions between GBCAs and biopolymers, such as type I collagen, which are abundant in the body. Objective: This study explores the interactions of neutral and charged GBCAs with type I collagen under physiological pH conditions (pH 7.4) using Taylor dispersion analysis (TDA) and frontal analysis continuous capillary electrophoresis (FACCE). Methods: Collagen from bovine achilles tendon was ground using a vibratory ball mill to achieve a more uniform particle size and increased surface area. Laser granulometry was employed to characterize the size distributions of both raw and ground collagen suspensions in water. TDA was used to assess the hydrodynamic radius (<i>R<sub>h</sub></i>) of the soluble collagen fraction present in the supernatant. Results: From the TDA and FACCE results, it was shown that there were no significant interactions between the tested GBCAs and either the ground collagen or its soluble fraction at pH 7.4. Interestingly, we also observed that collagen interacts with filtration membranes, indicating that careful selection of membrane material, or the absence of filtration in the experimental protocol, is essential in interaction studies involving collagen. Conclusion: These findings bring valuable insights into the behavior of GBCAs in biological systems with potential implications for clinical applications.https://www.mdpi.com/1424-8247/17/12/1633gadolinium-based contrast agentsinteractioncollagenTaylor dispersion analysisfrontal analysis continuous capillary electrophoresis |
| spellingShingle | Chutintorn Somnin Joseph Chamieh Laurent Leclercq Christelle Medina Olivier Rousseaux Hervé Cottet Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis Pharmaceuticals gadolinium-based contrast agents interaction collagen Taylor dispersion analysis frontal analysis continuous capillary electrophoresis |
| title | Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis |
| title_full | Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis |
| title_fullStr | Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis |
| title_full_unstemmed | Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis |
| title_short | Study of Interactions Between Gadolinium-Based Contrast Agents and Collagen by Taylor Dispersion Analysis and Frontal Analysis Continuous Capillary Electrophoresis |
| title_sort | study of interactions between gadolinium based contrast agents and collagen by taylor dispersion analysis and frontal analysis continuous capillary electrophoresis |
| topic | gadolinium-based contrast agents interaction collagen Taylor dispersion analysis frontal analysis continuous capillary electrophoresis |
| url | https://www.mdpi.com/1424-8247/17/12/1633 |
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