Universiteit Leiden

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Proefschrift

Uncovering vulnerabilities in triple-negative breast cancer

Triple-negative breast cancer (TNBC) constitutes a small subtype (~15%) of breast cancer, but causes the majority of breast cancer-related deaths.

Auteur
He, J.
Datum
31 oktober 2019
Links
Thesis in Leiden Repository

Triple-negative breast cancer (TNBC) constitutes a small subtype (~15%) of breast cancer, but causes the majority of breast cancer-related deaths. As defined by the absence of ER and PR expression and HER2 overexpression, TNBC is not curable by hormone receptor or HER2-targeted therapies. Furthermore, TNBC is highly heterogeneous and most aggressive. To date, cytotoxic chemotherapy remains the mainstay in the management of TNBC. Despite the initial response to the standard-of-care chemotherapy, TNBC often exhibits intrinsic or acquired drug resistance, and subsequently, recurs in local and distal organs. Targeted therapies have long been pursued for the treatment of TNBC, but rarely demonstrate satisfactory clinical outcomes. Therefore, improved understanding of the intricate biological basis underlying TNBC insensitivity to targeted agents and defining new therapeutic opportunities are of the upmost importance. The aim of the studies presented in this thesis was to systematically identify gene/kinase susceptibilities of refractory TNBC cells, and reveal novel potent targeted therapies for TNBC as monotherapy or in combination with approved kinase drugs.

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