Claims
- 1. A polymer extract having antitumor activity obtained from Mycobacterium bovis BCG (TICE substrain) comprising a plurality of .alpha.-D-glucopyranosyl-(1-6)-.alpha.-D-glucopyranose units and at least one .alpha.-D-glucopyranosyl-(1-4)-.alpha.-D-glucopyranose unit wherein the polymer has a molecular weight of from between 65 and 87 kDa.
- 2. The polymer extract of claim 1 having a molecular weight of between 64.5 and 67 kDa.
- 3. The polymer extract of claim 1 wherein said polymer extract possesses a molecular weight of approximately 67 kDa.
- 4. The polymer of claim 1 having the structure: ##STR2##
- 5. The polymer extract of claim 1 wherein the extract is an aqueous extract.
- 6. A pharmaceutical substance possessing antitumor activity comprising the polymer extract of claim 1 and a pharmaceutically acceptable carrier.
REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part of U.S. Ser. No. 08/319,515 filed on Oct. 7, 1994, abandoned, which is incorporated herein by reference. Applicants claim priority to the filing date of the aforementioned application.
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Continuations (1)
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Number |
Date |
Country |
Parent |
319515 |
Oct 1994 |
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