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020 ▼a 9781088383391
035 ▼a (MiAaPQ)AAI22616006
040 ▼a MiAaPQ ▼c MiAaPQ ▼d 247004
0820 ▼a 615
1001 ▼a Kochanek, Stanton Joseph.
24510 ▼a Data-driven HTS Strategies for Selection of Drug Combinations and 3D Models for Physiologically Relevant Drug Discovery.
260 ▼a [S.l.]: ▼b University of Pittsburgh., ▼c 2019.
260 1 ▼a Ann Arbor: ▼b ProQuest Dissertations & Theses, ▼c 2019.
300 ▼a 229 p.
500 ▼a Source: Dissertations Abstracts International, Volume: 81-04, Section: B.
500 ▼a Advisor: Johnston, Paul A.
5021 ▼a Thesis (Ph.D.)--University of Pittsburgh, 2019.
506 ▼a This item must not be sold to any third party vendors.
520 ▼a Currently, the approval rate for cancer drugs is dismal, where only ~ 5% of candidates that enter phase I clinical trials become therapies. To address this, it is necessary to improve our preclinical strategies. In particular, the leading clinical observation for patient treatment is that drug combinations more consistently provide better therapeutic outcomes and reduce or delay the emergence of drug resistance as opposed to monotherapy alone. What's more, models that better recapitulate tumor biology are more likely to be predictive of therapeutic success. Therefore, it was necessary for our laboratory to use data-driven high-throughput / content screening strategies to confirm synergistic drug-drug interactions and optimize cell culture conditions in 3D for drug discovery, to address these preclinical limitations. Specifically, we developed a strategy to confirm and evaluate the synergistic interaction between DCs identified in a pilot screen of 20 drugs performed in pairwise combinations. We were able to both confirm synergism across 4 DCs and develop a mechanism of synergistic action. We also characterized 11 head and neck squamous cell carcinoma cell lines as multicellular tumor spheroids (MCTSs) looking at changes in cellular viability and spheroid diameter over time as well as other microenvironmental characteristics of a solid tumor. Lastly, we applied our MCTSs to screen 19 FDA approved drugs to determine drug sensitivity in both 2D and 3D models. We observed that 2D was consistently more sensitive than 3D and that it was necessary to implement several metrics to adequately evaluate drug effect in 3D.
590 ▼a School code: 0178.
650 4 ▼a Pharmaceutical sciences.
690 ▼a 0572
71020 ▼a University of Pittsburgh. ▼b School of Pharmacy.
7730 ▼t Dissertations Abstracts International ▼g 81-04B.
773 ▼t Dissertation Abstract International
790 ▼a 0178
791 ▼a Ph.D.
792 ▼a 2019
793 ▼a English
85640 ▼u http://www.riss.kr/pdu/ddodLink.do?id=T15493351 ▼n KERIS ▼z 이 자료의 원문은 한국교육학술정보원에서 제공합니다.
980 ▼a 202002 ▼f 2020
990 ▼a ***1008102
991 ▼a E-BOOK