Women undergoing chemotherapy treatment for ovarian cancer (OC) can develop new peritoneal metastases during recovery time, indicating a possibility that therapy promotes the evolution of metastatic cell populations. Therefore, it is of the highest clinical interest to study the effects of chemotherapy on peritoneal dissemination. A hallmark of OC peritoneal dissemination is a disruption of tumor tissue that leads to the formation of carcinoma outgrowths that subsequently detach, transit into the peritoneal cavity, and intercalate into mesothelium that covers vital organs. In this application, we hypothesize that chemotherapy disrupts tumor tissue, promotes outgrowths, cell detachment, and tumor mesothelial intercalation. To test our hypothesis, we propose two Aims that center on the development of in vitro and in vivo imaging approaches that will enable visualization and quantification of OC dissemination post-chemotherapy.
In Aim 1 of this project, we will establish an organoid-based imaging assay to determine the effects of chemotherapy on OC organoid structure, outgrowth formation, cell detachment, and mesothelial intercalation.
Aim 2 of this proposal focuses on developing an in vivo imaging assay in a mouse model to study the dynamic activities of OC in response to chemotherapy. To complete these aims, we have assembled an interinstitutional team with members that bring unique expertise in tissue engineering of OC dissemination, 3D in vivo imaging of the mouse reproductive system, and genetically modified models of ovarian cancer. This multi-PI combined efforts will provide much-needed information about the effects of chemotherapy on the dynamics of OC peritoneal dissemination.

Public Health Relevance

Understanding whether and how chemotherapy promotes ovarian cancer metastasis is urgently needed for the design of improved treatment strategies. In this project, we address the lack of effective imaging approaches by establishing robust in vitro and in vivo imaging assays to study the unknown dynamics of ovarian cancer under chemotherapy, providing both technological advancement and biological insight.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Exploratory/Developmental Grants (R21)
Project #
1R21CA256615-01
Application #
10108703
Study Section
Imaging Guided Interventions and Surgery Study Section (IGIS)
Program Officer
Zahir, Nastaran Z
Project Start
2020-12-08
Project End
2022-11-30
Budget Start
2020-12-08
Budget End
2021-11-30
Support Year
1
Fiscal Year
2021
Total Cost
Indirect Cost
Name
Stevens Institute of Technology
Department
Chemistry
Type
Biomed Engr/Col Engr/Engr Sta
DUNS #
064271570
City
Hoboken
State
NJ
Country
United States
Zip Code