摘要:
Templates that are engineered to contain a predetermined sequence and a hairpin structure are provided by a nested oligonucleotide extension reaction. The engineered template allows Single Primer Amplification (SPA) to amplify a target sequence within the engineered template. In particularly useful embodiments, the target sequences from the engineered templates are cloned into expression vehicles to provide a library of polypeptides or proteins, such as, for example, an antibody library.
摘要:
The invention relates to modified hepatitis C virus E2 polypeptides that are effective in eliciting the production of cross-neutralizing antibodies against hepatitis C virus. The invention provides modified hepatitis C virus E2 polypeptides, preparations and pharmaceutical compositions containing them, as well as methods for using these modified E2 polypeptides.
摘要:
Provided herein are methods for generating diverse polypeptide and nucleic acid molecule libraries and collections, and the collections and libraries; methods for selecting variant polypeptides and nucleic acid molecules from the libraries; and molecules selected from the libraries. Exemplary of the polypeptides and nucleic acid molecules are antibodies and nucleic acids encoding the antibodies (including antibody fragments and domain exchanged antibodies). Also provided herein are methods of displaying polypeptides such as antibodies, for example on the surface of genetic packages, such as phage; and libraries and collections of the displayed polypeptides and vectors for producing the displayed polypeptides, libraries and collections. Exemplary of the displayed antibodies are domain exchanged antibodies.
摘要:
Methods of amplifying nucleic acid have now been discovered which include the steps of: a) annealing a primer to a template nucleic acid sequence, the primer having a first portion which anneals to the template and a second portion of predetermined sequence; b) synthesizing a polynucleotide that anneals to and is complementary to the portion of the template between the location at which the first portion of the primer anneals to the template and the end of the template, the polynucleotide having a first end and a second end, wherein the first end incorporates the primer; c) separating the polynucleotide synthesized in step (b) from the template; d) annealing a nested oligonucleotide to the second end of the polynucleotide synthesized in step (b), the nested oligonucleotide having a first portion that anneals to the second end of the polynucleotide and a second portion having the same predetermined sequence as the second portion of the primer; e) extending the polynucleotide synthesized in step (b) to provide a terminal portion thereof that is complementary to the predetermined sequence; and f) amplifying the extended polynucleotide using a single primer having the predetermined sequence.
摘要:
Cancer treatments use a therapy that: 1) interferes with the interaction between CD200 and its receptor to block immune suppression thereby promoting eradication of the cancer cells; and 2) directly kills the cancer cells either by complement-mediated or antibody-dependent cellular cytotoxicity or by targeting cells using a fusion molecule that includes a CD200-targeting portion. The therapy includes the administration of novel antibodies, functional fragments thereof or fusion molecules containing portions thereof.
摘要:
Cancer treatments use a therapy that: 1) interferes with the interaction between CD200 and its receptor to block immune suppression thereby promoting eradication of the cancer cells; and 2) directly kills the cancer cells either by complement-mediated or antibody-dependent cellular cytotoxicity or by targeting cells using a fusion molecule that includes a CD200-targeting portion. The therapy includes the administration of novel antibodies, functional fragments thereof or fusion molecules containing portions thereof.
摘要:
This disclosure relates to methods for selecting antibodies having desirable characteristics from a population of diverse antibodies. More specifically, this disclosure provides methods for identifying antibodies which bind to cancer cells, but which do not bind to human red or white blood cells or normal tissue cells. Antibodies of the disclosure can be used for therapeutic and/or diagnostic purposes.
摘要:
Cancer treatments use a therapy that: 1) interferes with the interaction between CD200 and its receptor to block immune suppression thereby promoting eradication of the cancer cells; and 2) directly kills the cancer cells either by complement-mediated or antibody-dependent cellular cytotoxicity or by targeting cells using a fusion molecule that includes a CD200-targeting portion. The therapy includes the administration of novel antibodies, functional fragments thereof or fusion molecules containing portions thereof.
摘要:
Cancer treatments use a therapy that: 1) interferes with the interaction between CD200 and its receptor to block immune suppression thereby promoting eradication of the cancer cells; and 2) directly kills the cancer cells either by complement-mediated or antibody-dependent cellular cytotoxicity or by targeting cells using a fusion molecule that includes a CD200-targeting portion. The therapy includes the administration of novel antibodies, functional fragments thereof or fusion molecules containing portions thereof.
摘要:
Cancer treatments use a therapy that: 1) interferes with the interaction between CD200 and its receptor to block immune suppression thereby promoting eradication of the cancer cells; and 2) directly kills the cancer cells either by complement-mediated or antibody-dependent cellular cytotoxicity or by targeting cells using a fusion molecule that includes a CD200-targeting portion. The therapy includes the administration of novel antibodies, functional fragments thereof or fusion molecules containing portions thereof.