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Updated: Aug 17, 2026

A Flow Cytometry-Based High-Throughput Technique for Screening Integrin-Inhibitory Drugs
Published on: February 2, 2024
Integrin function and signaling as pharmacological targets in cardiovascular diseases and in cancer
F Paulhe1, S Manenti, L Ysebaert
1Inserm U563, Département d'Oncogenèse et signalisation cellulaire dans les cellules hématopoïétiques, IFR30, Toulouse cedex, France.
Abstract:
The microenvironment is now considered as an important source of potential therapeutic targets in diverse pathologies. In cardiovascular diseases and in cancer, common processes involving stromal remodeling, cell invasion, and angiogenesis can promote progression of the pathology. At each step of the pathogenesis, cell adhesion needs to be modulated to allow adaptation of cell survival/motility/proliferation functions to the microenvironment. Among adhesion receptors, integrins, responsible for cell/matrix or cell/cell interactions, play a key role in the cellular responses. Moreover, their engagement conditions the sensitivity to apoptosis induced by therapeutic drugs. Targeting of the extracellular side of integrins in order to modulate their adhesive functions is under development and has reached clinical indications. However, improvement of oral availability and of cell signaling control is required in the future. Targeting of the extracellular or the intracellular key proteins involved in integrin-dependent signaling pathway seems promising. Yet, although some common key enzyme inhibitors are under development, a better knowledge of the specificity of integrin activation and interaction with partners upon pathogenesis is of major importance in envisaging the antagonism of integrin-linked signals as a therapeutic tool alone or in association with other therapies.
Insights
The microenvironment influences diseases like cancer and cardiovascular issues. Targeting integrins, key cell adhesion molecules, offers therapeutic potential but requires further research for better drug delivery and signaling control.
Area of Science:
- Cell Biology
- Pathophysiology
- Drug Discovery
Background:
- The cellular microenvironment significantly impacts disease progression in conditions like cancer and cardiovascular diseases.
- Processes such as stromal remodeling, cell invasion, and angiogenesis are crucial in disease pathogenesis.
- Cell adhesion, mediated by receptors like integrins, is vital for adapting cell functions to the microenvironment and influences therapeutic drug sensitivity.
Purpose of the Study:
- To explore the role of integrins in disease pathogenesis and their potential as therapeutic targets.
- To discuss current strategies for targeting integrins and identify areas for future development.
- To highlight the importance of understanding integrin activation and signaling specificity for effective therapeutic interventions.
Main Methods:
- Review of existing literature on integrin function in disease.
- Analysis of therapeutic strategies targeting integrin extracellular domains.
- Discussion of emerging approaches targeting intracellular integrin signaling pathways.
Main Results:
- Integrin targeting for modulating adhesive functions has shown clinical promise.
- Current extracellular integrin targeting strategies require improvements in oral bioavailability and signaling control.
- Intracellular targeting of integrin signaling pathways presents a promising avenue.
Conclusions:
- Integrins are critical mediators of cellular responses within the microenvironment and are key players in disease progression.
- Targeting integrin-dependent signaling pathways, both extracellularly and intracellularly, holds significant therapeutic potential.
- Further research into the specific activation and interaction of integrins in various pathologies is essential for developing effective integrin-targeted therapies, alone or in combination with other treatments.
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