Abstract: Novel macrolide compounds, including Lasonolide A and Lasonolide B, have been isolated from a marine sponge. These compounds, analogs, derivatives, or isomers of these compounds, and compositions comprising the compounds or its derivatives, are useful as antitumor agents and as biochemical tools.

Abstract: Methods for inhibiting intimal hyperplasia in the vasculature of mammals, including primates, are disclosed. The methods comprise administering to the mammal an effective amount of Brefeldin A or a derivative of Brefeldin A. The methods are useful in reducing intimal hyperplasia due to, for example, vascular injuries resulting from angioplasty, endarterectomy, reduction atherectomy or anastomosis of a vascular graft. The non-peptide PDGF antagonists Brefeldin A and its derivatives may optionally be administered coordinately with heparin, whereby the coordinately administered of non-peptide PDGF antagonist and heparin are combinatorially effective in inhibiting intimal hyperplasia.

Abstract: A novel use for the class of biologically active bis-heterocyclic, e.g., bis-indole alkaloid compounds, which have been named topsentins, nortopsentins, hamacanthins, or dragmacidins, pharmaceutical compositions containing them, methods of producing the compounds, and methods of using the compounds are disclosed. Specifically, the novel utility pertains to the anti-inflammatory properties exhibited by the bis-indole compounds and their analogs.

Abstract: A novel macrolide compound, lasonolide A, has been isolated from a marine sponge. This compound, derivatives of the compound, and compositions comprising the compound or its derivatives, are useful as antitumor agents and as biochemical tools.

Abstract: A novel use for the class of biologically active bis-heterocyclic, e.g., bis-indole alkaloid compounds, which have been named topsentins, nortopsentins, hamacanthins, or dragmacidins, pharmaceutical compositions containing them, methods of producing the compounds, and methods of using the compounds are disclosed. Specifically, the novel utility pertains to the anti-inflammatory properties exhibited by the bis-indole compounds and their analogs.

Abstract: A novel use for the class of biologically active bis-indole alkaloid compounds, which have been named topsentins, nortopsentins, or dragmacidins, pharmaceutical compositions containing them, methods of producing the compounds, and methods of using the compounds are disclosed. Specifically, the novel utility pertains to the anti-inflammatory properties exhibited by the bis-indole compounds and their analogs.

Abstract: This invention relates to novel compositions which are useful as antitumor compositions, a process of producing the compositions and a method for inhibiting tumors, utilizing the compositions. More particularly, the novel compositions are indole alkaloid compositions which are derived from marine sponges of the family Biemnidae.

Abstract: This invention relates to antitumor and antiviral furanoditerpenoid compositions, a process of producing the compositions and a method for inhibiting tumors and viruses utilizing the compositions. More particularly, the new compositions are antitumor and antiviral furanoterpenoids which are derived from marine organisms, i.e., the marine sponge Spongia sp.