DNA Binding Polyamides and the Importance of DNA Recognition in their use as Gene-Specific and Antiviral Agents.
There is a long history for the bioorganic and biomedical use of N-methyl-pyrrole-derived polyamides (PAs) that are higher homologs of natural products such as distamycin A and netropsin. This work has been pursued by many groups, with the Dervan and Sugiyama groups responsible for many breakthroughs. We have studied PAs since about 1999, partly in industry and partly in academia. Early in this program, we reported methods to control cellular uptake of polyamides in cancer cell lines and other cells likely to have multidrug resistance efflux pumps induced. We went on to discover antiviral polyamides active against HPV31, where SAR showed that a minimum binding size of about 10 bp of DNA was necessary for activity. Subsequently we discovered polyamides active against two additional high-risk HPVs, HPV16 and 18, a subset of which showed broad spectrum activity against HPV16, 18 and 31. Aspects of our results presented here are incompatible with reported DNA recognition rules. For example, molecules with the same cognate DNA recognition properties varied from active to inactive against HPVs. We have since pursued the mechanism of action of antiviral polyamides, and polyamides in general, with collaborators at NanoVir, the University of Missouri-St. Louis, and Georgia State University. We describe dramatic consequences of β-alanine positioning even in relatively small, 8-ring polyamides; these results contrast sharply with prior reports. This paper was originally presented by JKB as a Keynote Lecture in the 2ndInternational Conference on Medicinal Chemistry and Computer Aided Drug Design Conference in Las Vegas, NV, October 2013.
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA.
Kevin J
KJ
Koeller
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA.
G Davis
GD
Harris
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA.
Karl
K
Aston
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA.
Gaofei
G
He
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA.
Carlos H
CH
Castaneda
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA.
Melissa A
MA
Thornton
NanoVir, LLC, Kalamazoo, MI 49008, USA.
Terri G
TG
Edwards
Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA.
Shuo
S
Wang
Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA.
Rupesh
R
Nanjunda
Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA.
W David
WD
Wilson
NanoVir, LLC, Kalamazoo, MI 49008, USA.
Chris
C
Fisher
Department of Chemistry & Biochemistry, University of Missouri-St. Louis, St.Louis, MO 63121, USA ; NanoVir, LLC, Kalamazoo, MI 49008, USA.
James K
JK
Bashkin