Extracellular Matrix Targeted MRI Probes

Giuseppe Digilio; Sara Lacerda; Begona Lavin Plaza; Alkystis Phinikaridou

Extracellular Matrix Targeted MRI Probes

Giuseppe Digilio, Sara Lacerda, Begona Lavin Plaza, Alkystis Phinikaridou

Biomedical Engineering Department

Research output: Contribution to journal › Review article › peer-review

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Abstract

Dysregulated remodeling of the extracellular matrix (ECM) can lead to excessive accumulation of ECM proteins (primarily collagen, elastin/ tropoelastin, fibronectin and fibrin) resulting in tissue fibrosis. In many pathologies, changes in the molecular pattern of ECM components have been related to the progression and severity of fibrosis. Thus, magnetic resonance imaging (MRI) probes sensing specific ECM components hold promise for accurate staging of fibrotic diseases. This paper focuses on gadolinium-based contrast agents (GBCA) targeted to ECM components, including structural proteins and enzymes. According to available examples, they can be grouped into: 1) GBCA conjugated to targeting vectors that recognize and non-covalently bind to specific sites on the molecular target; 2) GBCA carrying a reactive chemical function able to bind covalently to the complementary chemical function of the molecular target; and 3) enzyme-responsive probes, whose relaxivity and pharmacokinetics change after enzymatic processing. Pros and cons of each approach are discussed.

Original language	English
Journal	Analysis and Sensing
Publication status	Accepted/In press - 23 Aug 2022

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@article{177afeb9a98e4ea88dee921cef6e729c,

title = "Extracellular Matrix Targeted MRI Probes",

abstract = "Dysregulated remodeling of the extracellular matrix (ECM) can lead to excessive accumulation of ECM proteins (primarily collagen, elastin/ tropoelastin, fibronectin and fibrin) resulting in tissue fibrosis. In many pathologies, changes in the molecular pattern of ECM components have been related to the progression and severity of fibrosis. Thus, magnetic resonance imaging (MRI) probes sensing specific ECM components hold promise for accurate staging of fibrotic diseases. This paper focuses on gadolinium-based contrast agents (GBCA) targeted to ECM components, including structural proteins and enzymes. According to available examples, they can be grouped into: 1) GBCA conjugated to targeting vectors that recognize and non-covalently bind to specific sites on the molecular target; 2) GBCA carrying a reactive chemical function able to bind covalently to the complementary chemical function of the molecular target; and 3) enzyme-responsive probes, whose relaxivity and pharmacokinetics change after enzymatic processing. Pros and cons of each approach are discussed.",

author = "Giuseppe Digilio and Sara Lacerda and {Lavin Plaza}, Begona and Alkystis Phinikaridou",

year = "2022",

month = aug,

day = "23",

language = "English",

journal = "Analysis and Sensing",

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TY - JOUR

T1 - Extracellular Matrix Targeted MRI Probes

AU - Digilio, Giuseppe

AU - Lacerda, Sara

AU - Lavin Plaza, Begona

AU - Phinikaridou, Alkystis

PY - 2022/8/23

Y1 - 2022/8/23

N2 - Dysregulated remodeling of the extracellular matrix (ECM) can lead to excessive accumulation of ECM proteins (primarily collagen, elastin/ tropoelastin, fibronectin and fibrin) resulting in tissue fibrosis. In many pathologies, changes in the molecular pattern of ECM components have been related to the progression and severity of fibrosis. Thus, magnetic resonance imaging (MRI) probes sensing specific ECM components hold promise for accurate staging of fibrotic diseases. This paper focuses on gadolinium-based contrast agents (GBCA) targeted to ECM components, including structural proteins and enzymes. According to available examples, they can be grouped into: 1) GBCA conjugated to targeting vectors that recognize and non-covalently bind to specific sites on the molecular target; 2) GBCA carrying a reactive chemical function able to bind covalently to the complementary chemical function of the molecular target; and 3) enzyme-responsive probes, whose relaxivity and pharmacokinetics change after enzymatic processing. Pros and cons of each approach are discussed.

AB - Dysregulated remodeling of the extracellular matrix (ECM) can lead to excessive accumulation of ECM proteins (primarily collagen, elastin/ tropoelastin, fibronectin and fibrin) resulting in tissue fibrosis. In many pathologies, changes in the molecular pattern of ECM components have been related to the progression and severity of fibrosis. Thus, magnetic resonance imaging (MRI) probes sensing specific ECM components hold promise for accurate staging of fibrotic diseases. This paper focuses on gadolinium-based contrast agents (GBCA) targeted to ECM components, including structural proteins and enzymes. According to available examples, they can be grouped into: 1) GBCA conjugated to targeting vectors that recognize and non-covalently bind to specific sites on the molecular target; 2) GBCA carrying a reactive chemical function able to bind covalently to the complementary chemical function of the molecular target; and 3) enzyme-responsive probes, whose relaxivity and pharmacokinetics change after enzymatic processing. Pros and cons of each approach are discussed.

M3 - Review article

JO - Analysis and Sensing

JF - Analysis and Sensing

ER -

Extracellular Matrix Targeted MRI Probes

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