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Updated: Apr 18, 2026

Direct Bioprinting of 3D Multicellular Breast Spheroids onto Endothelial Networks
Published on: November 2, 2020
β1 and β4 integrins: from breast development to clinical practice
Paola Nisticò1, Francesca Di Modugno, Sheila Spada
1Laboratory of Immunology, Regina Elena National Cancer Institute, Via Elio Chianesi 53, Rome, 00144, Italy. nistico@ifo.it
Integrins, crucial for breast development and function, regulate cell interactions with the extracellular matrix. Dysregulation of beta1 and beta4 integrins is implicated in breast cancer, highlighting their potential as therapeutic targets.
Area of Science:
- Cell Biology
- Developmental Biology
- Oncology
Background:
- Mammary gland development involves complex epithelial-microenvironment interactions throughout reproductive cycles.
- Extracellular matrix (ECM) receptors, particularly integrins, mediate cell-ECM and cell-cell communication, crucial for tissue architecture and function.
- Imbalances in ECM-integrin signaling pathways can contribute to oncogenesis.
Purpose of the Study:
- To review the role of beta1 and beta4 integrins in normal breast differentiation.
- To explore the cross-talk between beta1 and beta4 integrins and tyrosine kinase receptors.
- To discuss the potential of these integrin subunits as prognostic and therapeutic targets in breast cancer.
Main Methods:
- Literature review focusing on integrin signaling in mammary gland biology.
- Analysis of the interplay between integrins and tyrosine kinase receptors.
- Examination of the clinical relevance of integrin subunits in breast cancer.
Main Results:
- Beta1 and beta4 integrins are key mediators of cell-ECM interactions essential for mammary gland development and differentiation.
- Integrin signaling pathways are intricately linked with tyrosine kinase receptor pathways.
- Aberrant integrin expression and function are associated with breast cancer progression and patient outcomes.
Conclusions:
- Beta1 and beta4 integrins play critical roles in normal breast development and differentiation.
- Targeting the ECM-integrin axis, specifically beta1 and beta4 integrins, presents a promising strategy for breast cancer therapy.
- Further research into integrin-tyrosine kinase receptor interactions may yield novel prognostic and therapeutic approaches for breast cancer.
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