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Results for “Pyrogens”

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PubMed1980

Preliminary evaluation of intratumoral injection of a Streptococcus pyrogenes preparation in patients with malignant brain tumors.

Thirteen patients with malignant brain tumors, 12 anaplastic gliomas and one metastatic tumor, received repeated intratumoral injections of an immunopotentiator, Picibanil, prepared from streptococcus pyogenes. All patients tolerated this therapy; morbidity rates were acceptable. Significant tumor regression was noted on computerized tomography scanning for 6 of 12 patients for whom scanning was performed. Histologic examination of the post-therapy specimens obtained from 8 patients revealed that inflammatory reactions were evoked in all of the tumors, although the extent of inflammatory changes varied from patient to patient and mostly was localized to an area surrounding the intratumoral tubes.

Adjuvants, Immunologic↗
PubMed1983

A physical map of the group A streptococcal pyrogenic exotoxin bacteriophage T12 genome.

A physical map of group A streptococcal bacteriophage T12 was constructed with restriction endonucleases Sal/I, PstI, and EcoRI. The map is circularly permuted with a total length of 36.0 kb. Sub-molar quantities of certain restriction fragments, some of very precise MW and some of heterogeneous MW, were observed. This observation, together with mapping data, suggests that DNA packaging is initiated at a precise site on a concatemeric precursor and proceeds for a limited number of rounds.

Bacterial Proteins↗