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1079results about How to "Inhibit apoptosis" patented technology

Proliferation accelerator for human adipose-derived stem cells and application method thereof

The invention discloses a proliferation accelerator for human adipose-derived stem cells and an application method thereof. The proliferation accelerator for the human adipose-derived stem cells comprises insulin, hydrocortisone, parathyroid hormone, estradiol, testosterone, a platelet-derived growth factor-AB, an epidermal growth factor, a basic fibroblast growth factor, L-glutamine, 2-mercaptoethanol, a leukemia inhibitory factor, L-ascorbic acid, biotin, dexamethasone, an IGF-I (Insulin-like Growth Factor-I) and a SCF (Stem Cell Factor). The proliferation accelerator for the human adipose-derived stem cells, disclosed by the invention, is applied to proliferation and subculture of the adipose-derived stem cells, can be used to not only specifically promote the growth sped and the proliferation quantity of the adipose-derived stem cells to increase in the form of geometric progression, but also suppress early differentiation and maturity of the adipose-derived stem cells so as to prevent apoptosis or premature senility of the stem cells during culturing and keep the vigorous and active differentiation potentials of the adipose-derived stem cells. The proliferation accelerator for the human adipose-derived stem cells, disclosed by the invention, has good application prospect in the field of culture of the adipose-derived stem cells.
Owner:JIANGSU RE STEM BIOTECH

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.
Owner:THERAPEUTIC HUMAN POLYCLONALS
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