A new trehalose analog, lentztrehalose [4-O-(2,3-dihydroxy-3-methylbutyl)trehalose], was isolated from an actinomycete Lentzea sp. Lentztrehalose is only weakly hydrolyzed by the trehalose-hydrolyzing enzyme, trehalase, so can be regarded as an enzyme-stable analog of trehalose. Although
A strain of Gram negative bacteria was isolated from the surface soil of Wuying Hill at Jinan, Shandong province with Gause's medium in 1973. It is a strain of antagonistic bacteria for hysterocervicoma, hepatoma and melanoma of mice screened from 2100 strains of bacteria. It is also antagonistic to
Multiple intravenous injections (30 micrograms, ten times) in ICR mice of trehalose dimycolate and glucose monomycolate from Nocardia rubra, containing C36-48 mycolic acids, showed a prominent antitumor effect on a subcutaneously implanted sarcoma-180, an allogeneic sarcoma of mice with a
A newly isolated mycoloyl glycolipid (Rt. GM-2) from Rhodococcus terrae 70012 was identified and the granulomagenic and antitumor activities were studied as compared with trehalose-6,6'-dimycolate (cord factor) also from R. terrae (Rt. TDM). The alkaline hydrolysis products of Rt. GM-2 contained
Preparations of oil-attached mycobacterial components have been used in place of viable bacille Calmette-Guérin (BCG) in animal models and humans as a cancer immunotherapeutic agent. Most preparations consist of the isolated mycobacterial cell wall or cell wall skeleton attached to oil. Cord factor
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