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Related Experiment Video

Updated: May 21, 2026

An In Vitro Dormancy Model of Estrogen-sensitive Breast Cancer in the Bone Marrow: A Tool for Molecular Mechanism Studies and Hypothesis Generation
08:48

An In Vitro Dormancy Model of Estrogen-sensitive Breast Cancer in the Bone Marrow: A Tool for Molecular Mechanism Studies and Hypothesis Generation

Published on: June 30, 2015

Multidimensional Cellular Micro-Compartments to Model Invasive Lobular Carcinoma Dormancy.

Xilal Y Rima1,2,3, Sarmila Majumder3,4, Divya S Patel1

  • 1William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio, USA.

Advanced Healthcare Materials
|May 20, 2026
PubMed
Summary
This summary is machine-generated.

Invasive lobular carcinoma (ILC) cells can enter a dormant state, contributing to late recurrences. Understanding this dormancy and anti-estrogen resistance is key for improving ILC patient outcomes.

Keywords:
cancer dormancyinvasive lobular carcinomamicrofluidicsmicropatterningphotopolymerization

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Published on: August 11, 2011

Area of Science:

  • Oncology
  • Biomedical Engineering
  • Cancer Biology

Background:

  • Invasive lobular carcinoma (ILC) comprises 10-15% of breast cancers.
  • Disseminated tumor cells (DTCs) and therapy resistance pose significant risks for ILC patients.
  • Late recurrences in ILC suggest a role for dormant DTCs.

Purpose of the Study:

  • To investigate the link between anti-estrogen resistance and dormancy in ILC.
  • To develop and utilize advanced in vitro models for ILC research.

Main Methods:

  • Employed multidimensional, micro-compartmentalized in vitro models.
  • Engineered platforms mimicked ILC morphology, distinguishing it from invasive ductal carcinoma (IDC).
  • Induced reversible dormancy to study epigenetic and sensing changes.

Main Results:

  • Bioengineered models successfully recapitulated ILC characteristics.
  • Induced dormancy in anti-estrogen-resistant ILC cells revealed epigenetic alterations.
  • Enhanced substrate sensing (chemical and mechanical) was observed in dormant ILC cells, mediated by p27Kip1 signaling.

Conclusions:

  • A novel in vitro platform facilitates the study of ILC dormancy and anti-estrogen resistance.
  • p27Kip1 signaling is crucial in the dormant, resistant ILC phenotype.
  • This approach offers a high-throughput method for expedited ILC dormancy investigation.