MUC1 ANTIGEN WITH REDUCED NUMBER OF REPEATED VNTR-UNITS Russian patent published in 2007 - IPC C12N15/12 C12N15/63 C07K14/705 A61K39/00 A61K48/00 A61P35/00 

Abstract RU 2303069 C2

FIELD: immunology, biotechnology.

SUBSTANCE: invention relates to variants of nucleic acid construct (NK-construct) encoding of MUC1 antigen based on seven full repeated VNTR-units. Variants include NK-constructs selected from group containing MUC1 based on seven full repeated VNTR-units, MUC1 based on seven full repeated VNTR-units without signal sequence, MUC1 based on seven full repeated VNTR-units without signal sequence, transmembrane and cytoplasm domains, full MUC1 based on seven full repeated VNTR-units without transmembrane and cytoplasm domains, as well as mutants of abovementioned variants, wherein at least one VNTR is mutated to reduce of glycosylation potential. Disclosed are NK-constructs additionally containing epitopes selected from group: FLSFHISNL, NLTISDVSV or NSSLEDPSTDYYQELQRDISE. Also described are variants of expressing plasmide carrying NK-construct represented as DNA, protein having anti-tumor activity, encoded with NK-construct and pharmaceutical composition with anti-tumor activity based on said protein, NK-construct or plasmide. Application of NK-construct and protein for producing of drug for treatment or prevention of MUC-1 expressing tumors; method for therapy by using NK-construct, protein, or plasmide also are disclosed.

EFFECT: NK-constructs with increased anti-tumor activity.

20 cl, 25 dwg, 5 ex

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RU 2 303 069 C2

Authors

Berden Nejl

Ehllis Dzhonatan Genri

Khamblin Pol A.

Dates

2007-07-20Published

2003-05-23Filed