Cited by 47Cellular Mechanics and InteractionsOvarian cancer diagnosis and treatmentCancer Cells and Metastasis

Compressive Stimulation Enhances Ovarian Cancer Proliferation, Invasion, Chemoresistance, and Mechanotransduction via CDC42 in a 3D Bioreactor

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Novak, Caymen M., Horst, Eric N., Lin, Emily, Mehta, Geeta·2020·Cancers

Abstract

This report investigates the role of compressive stress on ovarian cancer in a 3D custom built bioreactor. Cells within the ovarian tumor microenvironment experience a range of compressive stimuli that contribute to mechanotransduction. As the ovarian tumor expands, cells are exposed to chronic load from hydrostatic pressure, displacement of surrounding cells, and growth induced stress. External dynamic stimuli have been correlated with an increase in metastasis, cancer stem cell marker expression, chemoresistance, and proliferation in a variety of cancers. However, how these compressive stimuli contribute to ovarian cancer progression is not fully understood. In this report, high grade serous ovarian cancer cell lines were encapsulated within an ECM mimicking hydrogel comprising of agarose and collagen type I, and stimulated with confined cyclic or static compressive stresses for 24 and 72 h. Compression stimulation resulted in a significant increase in proliferation, invasive morphology, and chemoresistance. Additionally, CDC42 was upregulated in compression stimulated conditions, and was necessary to drive increased proliferation and chemoresistance. Inhibition of CDC42 lead to significant decrease in proliferation, survival, and increased chemosensitivity. In summary, the dynamic in vitro 3D platform developed in this report, is ideal for understanding the influence of compressive stimuli, and can be widely applicable to any epithelial cancers. This work reinforces the critical need to consider compressive stimulation in basic cancer biology and therapeutic developments.

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Authors
Novak, C. M., Horst, E. N., Lin, E., & Mehta, G.
Affiliations
University of Michigan (US)
Corresponding author
Mehta, Geeta
Venue
Cancers
Publisher
MDPI AG
Published
2020-06-10
Volume
12
Issue
6
Pages
1521
ISSN
2072-6694 (ISSN-L)
OpenAlex
W3035285190
Cited by
47
References
51
Citations by year
2026: 4 · 2025: 3 · 2024: 11 · 2023: 11 · 2022: 12 · 2021: 6
FWCI
3.62
Type
journal article
Language
en
Open access
Locations
  • Cancers (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • U.S. Department of Defense (DOD Pilot award W81XWH-16-1-0426, DOD OCRP Early Career Investigator Award W81XWH-13-1-0134, DOD Investigator Initiated award W81XWH-18-0346)
  • American Cancer Society (Research Scholar Award RSG-19-003-01-CCE)
  • Rivkin Center for Ovarian Cancer (Pilot award)
  • undefined <span style="color:gray;font-size:10px;">undefined</span> (Michigan Ovarian Cancer Alliance)
  • National Cancer Institute (P30CA046592)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Health Sciences › Medicine › Reproductive Medicine › Ovarian cancer diagnosis and treatment
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
Keywords
ovarian cancer, compressive stress, mechanotransduction, Cdc42, chemoresistance, tumor cell proliferation, tumor invasion, high-grade serous ovarian cancer, 3D bioreactor, tumor microenvironment, cyclic compression, chemosensitivity

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