Insulin-like growth factor 1 receptor regulates breast cancer cell adhesion through beta-1 integrin - Report - MDSpire

Insulin-like growth factor 1 receptor regulates breast cancer cell adhesion through beta-1 integrin

  • By

  • Christopher A. Galifi

  • Elvan Dogan

  • Luis Fernandez Almansa

  • Krystopher Maingrette

  • Simran S. Shah

  • Joseph J. Bulatowicz

  • Karen Ebenezer

  • Utz Herbig

  • Amir K. Miri

  • Teresa L. Wood

  • May 20, 2026

  • 0 min

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Clinical Report: The Role of Insulin-like Growth Factor 1 Receptor in Modulating Breast Cancer Cell Adhesion

Overview

Revise to emphasize the dual role of IGF1R in both promoting and inhibiting adhesion.

Background

Understanding the role of IGF1R in breast cancer is crucial due to its implications in tumor aggressiveness and metastasis. Despite the development of IGF1R inhibitors, their clinical efficacy has been limited, highlighting the need for deeper insights into IGF1R's functions. This study aims to clarify the relationship between IGF1R and cell adhesion, which is vital for cancer progression.

Data Highlights

ConditionEffect on Cell Adhesion
IGF-1 StimulationIncreased adhesion
IGF1R KnockdownIncreased adhesion
β1 Integrin KnockdownReversed increased adhesion
IGF1R Inhibition (BMS-754807)Reduced adhesion

Key Findings

  • IGF-1 stimulation increases adhesion in MDA-MB-231 TNBC cells.
  • IGF1R knockdown also stimulates cell adhesion, indicating a paradoxical role.
  • Inhibition of IGF1R signaling reduces adhesion to endothelial cells.
  • Increased adhesion is dependent on β1 integrin function.
  • IGF1R internalization plays a key role in modulating adhesion dynamics.

Clinical Implications

These findings suggest that targeting IGF1R may not be straightforward due to its dual role in promoting and inhibiting adhesion. Clinicians should consider the implications of IGF1R signaling in treatment strategies for TNBC, particularly regarding adhesion and metastasis.

Conclusion

The study elucidates the complex role of IGF1R in breast cancer cell adhesion, emphasizing the need for further research to understand its implications in cancer therapy.

Related Resources & Content

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  4. The ASCO Post, 2014 -- Potential Roles for Metformin and Everolimus in Obese Women With ER-Positive Breast Cancer
  5. Systemic Treatment of Patients With Metastatic Breast Cancer: ASCO Resource–Stratified Guideline | JCO Global Oncology
  6. Decoding the Role of Insulin-like Growth Factor 1 and Its Isoforms in Breast Cancer
  7. Systemic Treatment of Patients With Metastatic Breast Cancer: ASCO Resource–Stratified Guideline | JCO Global Oncology
  8. Decoding the Role of Insulin-like Growth Factor 1 and Its Isoforms in Breast Cancer

Original Source(s)

Insulin-like growth factor 1 receptor regulates breast cancer cell adhesion through beta-1 integrin

  • by Christopher A. Galifi, Elvan Dogan, Luis Fernandez Almansa, Krystopher Maingrette, Simran S. Shah, Joseph J. Bulatowicz, Karen Ebenezer, Utz Herbig, Amir K. Miri, Teresa L. Wood

  • May 20, 2026

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