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Generated: June 23, 2018

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Details for Patent: 6,207,816

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Title: High affinity oligonucleotide ligands to growth factors
Abstract:Methods are described for the identification and preparation of high-affinity nucleic acid ligands to TGF.beta., PDGF and hKGF. Included in the invention are specific RNA and ssDNA ligands to TGF.beta.1 and PDGF identified by the SELEX method. Also included in the invention are specific RNA ligands to hKGF identified by the SELEX method. Further included are RNA ligands that inhibit the interaction of TGF.beta.1 and hKGF with their receptors and DNA ligands that inhibit the interaction of PDGF with its receptor.
Inventor(s): Gold; Larry (Boulder, CO), Janjic; Neboisa (Boulder, CO), Pagratis; Nikos (Boulder, CO)
Assignee: NeXstar Pharmaceuticals, Inc. (Boulder, CO)
Filing Date:May 11, 1998
Application Number:08/973,124
Claims:1. A purified and isolated non-naturally occurring modified single-stranded ribonucleic acid ligand to platelet-derived growth factor (PDGF) wherein said modified ligand is substantially homologous to and has substantially the same ability to bind PDGF as a modified ligand selected from the group consisting of the sequences set forth in Table 13 (SEQ ID NOS:128-170).

2. A purified and isolated non-naturally occurring modified single-stranded ribonucleic acid ligand to platelet-derived growth factor (PDGF) wherein said modified ligand has substantially the same structure and substantially the same ability to bind PDGF as a modified ligand selected from the group consisting of the sequences set forth in Table 13 (SEQ ID NOS:128-170).

3. A purified and isolated non-naturally occurring single-stranded deoxyribonucleic acid ligand to platelet-derived growth factor (PDGF) wherein said ligand is substantially homologous to and has substantially the same ability to bind PDGF as a ligand selected from the group consisting of the sequences set forth in Tables 8 and 9, and FIGS. 3, 4 and 9 (SEQ ID NOS: 93-124, 171-176).

4. A purified and isolated non-naturally occurring single stranded deoxyribonucleic acid ligand to platelet-derived growth factor (PDGF) wherein said ligand has substantially the same structure and substantially the same ability to bind PDGF as a ligand selected from the group consisting of the sequences set forth in Tables 8 and 9, and FIGS. 3, 4 and 9 (SEQ ID NOS: 93-124, 171-176).

5. A purified and isolated non-naturally occurring modified single-stranded ribonucleic acid ligand to human keratinocyte growth factor (hKGF) wherein said modified ligand is selected from the group consisting of SEQ ID NOS: 189-264, 268-304.

6. A purified and isolated non-naturally occurring modified single-stranded ribonucleic acid ligand to human keratinocyte growth factor (hKGF) wherein said modified ligand is substantially homologous to and has substantially the same ability to bind hKGF as a modified ligand selected from the group consisting of SEQ ID NOS: 189-264, 268-304.

7. A purified and isolated non-naturally occurring modified ribonucleic acid ligand to human keratinocyte growth factor (hKGF) wherein said modified ligand has substantially the same structure and substantially the same ability to bind hKGF as a modified ligand selected from the group consisting of SEQ ID NOS: 189-264, 268-304.

8. A purified and isolated non-naturally occurring modified ribonucleic acid ligand to basic fibroblast growth factor (bFGF) wherein said modified ligand has the sequence as shown in SEQ ID NO: 267.

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