Patent application number | Description | Published |
20090053210 | Enhanced expression of human or humanized immunoglobulin in non-human transgenic animals - The present invention describes transgenic animals with human(ized) immunoglobulin loci and transgenes encoding human(ized) Igα and/or Igβ sequences. Of particular interest are animals with transgenic heavy and light chain immunoglobulin loci capable of producing a diversified human(ized) antibody repertoire that have their endogenous production of Ig and/or endogenous Igα and/or Igβ sequences suppressed. Simultaneous expression of human(ized) immunoglobulin and human(ized) Igα and/or Igβ results in normal B-cell development, affinity maturation and efficient expression of human(ized) antibodies. | 02-26-2009 |
20090098134 | COMPOSITIONS AND METHODS FOR INHIBITING ENDOGENOUS IMMUNOGLOBULIN GENES AND PRODUCING TRANSGENIC HUMAN IDIOTYPE ANTIBODIES - The invention relates to transgenic animals lacking endogenous Ig and capable of producing transgenic antibodies, as well as methods of making the same. The invention further relates to methods for producing transgenic antibodies in such animals, and transgenic antibodies so produced. | 04-16-2009 |
20100205682 | HUMANIZED IMMUNOGLOBULIN LOCI - The present invention concerns methods and means to produce humanized antibodies from transgenic non-human animals. The invention specifically relates to novel immunoglobulin heavy and light chain constructs, recombination and transgenic vectors useful in making transgenic non-human animals expressing humanized antibodies, transgenic animals, and humanized immunoglobulin preparations. | 08-12-2010 |
20100212035 | Compositions and Methods for Producing Transgenic Mammals Having Recombinant Immunoglobulin Loci - The invention provides methods for the production of transgenic animals comprising a recombinant Ig locus, as well as transgenic antibodies derived therefrom. The methods involve meganuclease cleavage-stimulated homologous recombination in mammalian embryos. | 08-19-2010 |
20100235929 | Compositions and Methods for Producing Antibodies Having Human Idiotypes in Transgenic Birds - The invention relates to compositions and methods for producing antibodies having human idiotypes in non-human animals. | 09-16-2010 |
20110093963 | Enhanced Expression of Human or Humanized Immunoglobulin in Non-Human Transgenic Animals - The present invention describes transgenic animals with human(ized) immunoglobulin loci and transgenes encoding human(ized) Igα and/or Igβ sequences. Of particular interest are animals with transgenic heavy and light chain immunoglobulin loci capable of producing a diversified human(ized) antibody repertoire that have their endogenous production of Ig and/or endogenous Igα and/or Igβ sequences suppressed. Simultaneous expression of human(ized) immunoglobulin and human(ized) Igα and/or Igβ results in normal B-cell development, affinity maturation and efficient expression of human(ized) antibodies. | 04-21-2011 |
20110219465 | Suppression of B-Cell Apoptosis in Transgenic Animals Expressing Humanized Immunoglobulin - The invention provides a novel approach to increase immunoglobulin expression in non-human transgenic animals. For instance, the invention provides a method to increase humanized immunoglobulin production in animals genetically engineered to express one or several human or humanized immunoglobulin transloci. This can be done by overexpressing the apoptosis inhibitor, i.e. a rabbit bcl-2, whose expression is driven by a B-cell specific promoter specifically in the B-cell of the animal, thereby enhancing the survival of B-cells. This invention further relates to a method for selectively enhancing the survival of exogenous B-cells, that is B-cells expressing any immunoglobulin transgene locus, over the survival of endogenous B-cells that do not express the transgene locus. Selectivity is achieved by expressing the apoptosis-inhibitor only within exogenous B-cells, that is, by coupling exogenous immunoglobulin expression with apoptosis inhibitor expression. This latter method allows for increased expression and production of the transgene encoded product(s) over the endogenously produced immunoglobulin of the transgenic animal. The invention also provides a novel apoptosis-inhibitor, rabbit bcl-2. | 09-08-2011 |
20120090041 | Compositions and Methods for Inhibiting Endogenous Immunoglobulin Genes and Producing Transgenic Human Idiotype Antibodies - The invention relates to transgenic animals lacking endogenous Ig and capable of producing transgenic antibodies, as well as methods of making the same. The invention further relates to methods for producing transgenic antibodies in such animals, and transgenic antibodies so produced. | 04-12-2012 |
20130102072 | SUPPRESSION OF B-CELL APOPTOSIS IN TRANSGENIC ANIMALS EXPRESSING HUMANIZED IMMUNOGLOBULIN - The invention provides a novel approach to increase immunoglobulin expression in non-human transgenic animals. For instance, the invention provides a method to increase humanized immunoglobulin production in animals genetically engineered to express one or several human or humanized immunoglobulin transloci. This can be done by overexpressing the apoptosis inhibitor, i.e. a rabbit bcl-2, whose expression is driven by a B-cell specific promoter specifically in the B-cell of the animal, thereby enhancing the survival of B-cells. This invention further relates to a method for selectively enhancing the survival of exogenous B-cells, that is B-cells expressing any immunoglobulin transgene locus, over the survival of endogenous B-cells that do not express the transgene locus. Selectivity is achieved by expressing the apoptosis-inhibitor only within exogenous B-cells, that is, by coupling exogenous immunoglobulin expression with apoptosis inhibitor expression. This latter method allows for increased expression and production of the transgene encoded product(s) over the endogenously produced immunoglobulin of the transgenic animal. The invention also provides a novel apoptosis-inhibitor, rabbit bcl-2. | 04-25-2013 |
20130189774 | HUMANIZED IMMUNOGLOBULIN LOCI - The present invention concerns methods and means to produce humanized antibodies from transgenic non-human animals. The invention specifically relates to novel immunoglobulin heavy and light chain constructs, recombination and transgenic vectors useful in making transgenic non-human animals expressing humanized antibodies, transgenic animals, and humanized immunoglobulin preparations. | 07-25-2013 |
20140056897 | BISPECIFIC THREE-CHAIN ANTIBODY-LIKE MOLECULES - The present invention relates to novel bispecific three-chain antigen-binding polypeptides and their preparation and use in the treatment and/or diagnosis of various diseases, and also relates to bispecific three-chain antibody-like molecules (TCAs) capable of activating immune effector cells and their use in diagnosis and/or treatment of various diseases. | 02-27-2014 |