Article ; Online: Targeting tumor-stromal interactions in triple-negative breast cancer using a human vascularized micro-tumor model.
2024 Volume 26, Issue 1, Page(s) 5
Abstract: Triple-negative breast cancer (TNBC) is highly aggressive with limited available treatments. Stromal cells in the tumor microenvironment (TME) are crucial in TNBC progression; however, understanding the molecular basis of stromal cell activation and ... ...
Abstract | Triple-negative breast cancer (TNBC) is highly aggressive with limited available treatments. Stromal cells in the tumor microenvironment (TME) are crucial in TNBC progression; however, understanding the molecular basis of stromal cell activation and tumor-stromal crosstalk in TNBC is limited. To investigate therapeutic targets in the TNBC stromal niche, we used an advanced human in vitro microphysiological system called the vascularized micro-tumor (VMT). Using single-cell RNA sequencing, we revealed that normal breast tissue stromal cells activate neoplastic signaling pathways in the TNBC TME. By comparing interactions in VMTs with clinical data, we identified therapeutic targets at the tumor-stromal interface with potential clinical significance. Combining treatments targeting Tie2 signaling with paclitaxel resulted in vessel normalization and increased efficacy of paclitaxel in the TNBC VMT. Dual inhibition of HER3 and Akt also showed efficacy against TNBC. These data demonstrate the potential of inducing a favorable TME as a targeted therapeutic approach in TNBC. |
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MeSH term(s) | Humans ; Triple Negative Breast Neoplasms/drug therapy ; Triple Negative Breast Neoplasms/genetics ; Breast ; Paclitaxel ; Signal Transduction ; Stromal Cells ; Tumor Microenvironment/genetics |
Chemical Substances | Paclitaxel (P88XT4IS4D) |
Language | English |
Publishing date | 2024-01-05 |
Publishing country | England |
Document type | Journal Article ; Research Support, N.I.H., Extramural |
ZDB-ID | 2015059-3 |
ISSN | 1465-542X ; 1465-5411 |
ISSN (online) | 1465-542X |
ISSN | 1465-5411 |
DOI | 10.1186/s13058-023-01760-y |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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