摘要:
The invention relates to a family of substantially pure, receptor like TGF-.beta.1 binding glycoproteins. These molecules are characterized by molecular masses of 160 kd, 70-80 kd, and 30-40 kd as determined by SDS-PAGE, and the ability to bind the TGF-.beta.1 molecule. This family of molecules is useful in identifying and/or quantifying TGF-.beta.1 in a sample, as well as inhibiting its effect on cells. Also described are nucleic acid sequences which code for the protein monomer making up the molecules.
摘要:
The invention relates to a family of substantially pure, receptor like TGF-.beta.1 binding glycoproteins. These molecules are characterized by molecular masses of 160 kd, 70-80 kd, and 30-40 kd as determined by SDS-PAGE, and the ability to bind the TGF-.beta.1 molecule. This family of molecules is useful in identifying and/or quantifying TGF-.beta.1 in a sample, as well as inhibiting its effect on cells. Also described are nucleic acid sequences which code for the protein monomer making up the molecules.
摘要:
The invention relates to a family of substantially pure, receptor like TGF-.beta.1 binding glycoproteins. These molecules are characterized by molecular masses of 160 kd, 70-80 kd, and 30-40 kd as determined by SDS-PAGE, and the ability to bind the TGF-.beta.1 molecule. This family of molecules is useful in identifying and/or quantifying TGF-.beta.1 in a sample, as well as inhibiting its effect on cells.
摘要:
Platelet-derived endothelial cell growth factor (PD-ECGF) is a 45 kDa endothelial cell mitogen that has been purified to homogeneity from human platelets. It does not bind to heparin and does not stimulate the proliferation of fibroblasts, in contrast to other endothelial mitogens of the fibroblast growth factor (FGF) family. PD-ECGF appears to be the only endothelial cell growth factor in human platelets and recent data indicate that it has angiogenic activity in vitro, i.e., the ability to stimulate the formation of new blood vessels and chemotactic activity, in vitro. The present invention provides a homogeneous PD-ECGF in substantially greater yields than available in the past, the primary structure of PD-ECGF, antibodies against PD-ECGF, clones of its cDNA, and variants thereof. The invention also provides a therapeutic preparation of PD-ECGF.
摘要:
Purified protein known as platelet TGF-.beta.1-BP (transforming growth factor-.beta.1-binding protein) is described. The protein is useful for purposes such as the production of antisera which are useful in identifying complexes containing the binding protein, as well as in formation of labeled probes. Also described are purified DNA which expresses the protein, as well as messenger RNA translated into the protein. The protein contains 16 epidermal growth factors (EGF) like repeats, and 3 repeats not found in other proteins. The DNA for the protein is found to contain consensus sequences for hydroxylation of asparagine/aspartic acid residues, and, in the purified protein beta hydroxylated asparagine residues were found.
摘要:
Platelet-derived endothelial cell growth factor (PD-ECGF) is a 45 kDa endothelial cell mitogen that has been purified to homogeneity from human platelets. It does not bind to heparin and does not stimulate the proliferation of fibroblasts, in contrast to other endothelial mitogens of the fibroblast growth factor (FGF) family. PD-ECGF appears to be the only endothelial cell growth factor in human platelets and recent data indicate that it has angiogenic activity in vitro, i.e., the ability to stimulate the formation of new blood vessels and chemotactic activity, in vitro. The present invention provides a homogeneous PD-ECGF in substantially greater yields than available in the past, the primary structure of PD-ECGF, antibodies against PD-ECGF, clones of its cDNA, and variants thereof. The invention also provides a therapeutic preparation of PD-ECGF.
摘要:
An object of the present invention is to provide a protein which induces apoptosis, a base sequence encoding the protein, and an agent for use in the treatment of malignant tumors. The present invention is a protein (ASK1) which has protein kinase activity and enhances SEK1 kinase activity and/or MKK3 kinase activity, or a derivative thereof. Malignant tumors can be treated using the protein according to the present invention or the base sequence encoding the protein.
摘要:
The invention provides modified mammalian transforming growth factor (TGF)-.beta. type I receptors (T.beta.R-I) which substantially retain the ability of native T.beta.R-I to transduce signals for matrix protein production but which have a diminished capacity to transduce growth-inhibitory signals. The receptors of the invention are characterized by the replacement or deletion of one or more residues in the juxtamembrane region between the transmembrane and GS domains, e.g., the residues corresponding to Ser.sup.172 or Thr.sup.176 of hT.beta.R-I. The invention also provides recombinant expression systems for production of the modified receptors and assays using them for the identification of antiproliferative agents.
摘要:
It is an object of the present invention to provide an excellent enhancer for an osteogenesis accelerator that can enhance the activity of BMP as an osteogenesis accelerator. Another object of the present invention is to provide a method of screening for a novel enhancer for an osteogenesis accelerator. The present invention relates to an enhancer for an osteogenesis accelerator, which comprises a compound having a TGF-β selective inhibitory activity as an active ingredient, the enhancer being administered with an osteogenesis accelerator containing BMP as an active ingredient either simultaneously or sequentially, and to a method of screening for an enhancer for an osteogenesis accelerator, comprising using a TGF-β inhibition as a measure for discovering the enhancer.
摘要:
A new receptor family has been identified, of activin-like kinases. Novel proteins have activin/TGF-β-type I receptor functionality, and have consequential diagnostic/therapeutic utility. They may have a serine/threonine kinase domain, a DFKSRN or DLKSKN sequence in subdomain VIB and/or a GTKRYM sequence in subdomain VIII.