BAL C-tail drug delivery molecules

Details BAL C-tail drug delivery molecules BAL C-tail drug delivery molecules

1995-06-07

1998-10-13

Lilling, Herbert J.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Peptide containing doai

514 13, 514 14, 514 15, 514 16, 514 17, 514 18, A61K 3816, A61K 3808, A61K 3810

Patent

active

058212264

ABSTRACT:
Drug delivery conjugates of including a BAL C-tail peptide including all or a portion of the carboxy terminal region of human bile salt-activated lipase (BAL) conjugated to a biologically active substance are described. The C-tail peptide-drug conjugates, when orally ingested, compete with native BAL in binding to the intestinal surface, and, as a result, permit drug compositions to be delivered specifically to the intestine. Useful C-tail peptides are derivatives of the carboxy terminal region of BAL derived from all or portion of the region containing amino acid residues 539 to 722, and have a mucin-like structure containing at least three of the repeating proline-rich units of eleven amino acid residues each.

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