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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Synthesis and Bioevaluation of Piperazine-based Compounds as Anti-cancer Agents in Pancreatic Cancer

Moots, Holly E 01 January 2024 (has links) (PDF)
Pancreatic cancer is the sixth leading cause of cancer-related death and new therapies are needed. In this investigation two piperazine-based compound classes were discovered with anticancer activity against human pancreatic cancer cells. The use of piperazine moieties in medicinal chemistry has garnered increased interest because FDA-approved anticancer piperazine derivatives (i.e. Imatinib) have demonstrated significant impact in cancer treatment. The first half of this study describes the discovery of a class of piperazine-based compounds that function as far upstream binding protein 1 (FUBP1) inhibitors. FUBP1 is a single-stranded DNA/RNA binding protein that functions as a master regulator of various genes, including c-Myc, which is overexpressed in pancreatic ductal adenocarcinoma. This report describes our initial discovery as well as development of a synthetic pathway to access these derivatives, and bioevaluation of these piperazine-based compounds in vitro. The second half of this report describes a different class of piperazine-based compounds that function as large amino acid transporter 1 (LAT1) efflux agonists. LAT1, also known as solute carrier protein 7A5 (SLC7A5), is a Na+-independent amino acid transporter that regulates influx of essential amino acids. LAT1 expression is associated with decreased overall survival in pancreatic cancer. In previously published work, we demonstrated the ability of the lead compound to decrease leucine and methionine levels in human pancreatic cancer cells in vitro leading to inhibited cancer cell growth. This report describes our continued optimization of the LAT1 efflux agonist design through in silico modeling, development of a modular synthetic method using chiral piperazines to access new derivatives of our lead efflux agonist, and bioevaluation of these new compounds as anticancer therapies in vitro using relative growth measurements and a 3H-leucine efflux assay. Mapping our computational predictions to each compound’s actual in vitro performance is a major deliverable of this effort.

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