摘要:
The invention comprises a factor having the following characteristics:a) It inhibits granulocyte-macrophage colony and cluster formation;b) It has a molecular weight of about 8 kDa as determined by SDS-PAGE;c) It has a weak anionic charge at pH 7.4 as shown by anion exchange chromatography;d) It has a flattened isoelectric titration curve as shown by anion exchange chromatography; andd) It is a protein.The invention also comprises methods of making and using the factor and compositions comprising the factor.
摘要:
The present invention is directed to various processes and devices for utilizing isolated and culturally expanded marrow-derived mesenchymal cells (i.e. mesenchymal stem cells) for treating skeletal and other connective tissue disorders.
摘要:
The invention relates to a polypeptide which can be isolated from thymus glands and has an action on the immunological system, and which has a molecular weight of 3,480, a UV absorption with a maximum at 205 to 210 nm and an isoelectric point of 3.95+0.15 and a specific aminoacid composition, the N-terminal, if appropriate, carrying an acyl group or an acylglycyl group, processes for its isolation and purification, its use, agents containing this polypeptide, and its cleavage products, their use and agents containing them.
摘要:
A process for recovering interferon which comprises contacting a solution containing an interferon produced by the induced cells of human origin with a water-insolubilized sulfated polysaccharide to allow the interferon to be adsorbed on the water-insolubilized sulfated polysaccharide and then selectively eluting the interferon with an aqueous solution of an inorganic salt.
摘要:
IT HAS BEEN FOUND THAT VERY LARGE PRODUCTION OF ANTIBODIES CAN BE ACHIEVED BY REMOVING SPECIFIC FEEDBACK REGULATORY ANTIBODIES BY MEANS OF A LYMPHORESIS PERFORMED UNDER SPECIAL CONDITIONS IN A PATIENT OR SUBJECT (E.G., AN ANIMAL OR HUMAN) WITH INDUCED ANATOMICAL AND PHYSIOLOGICAL CHANGES. THE SUBJECT IS FIRST GIVEN ANTIGEN ADMINISTRATION THEN, PREFERABLY, BUT NOT MANDATORILY, IS SPLENECTOMIZED. A THORACIC DUCT FISTULA IS NEXT PERFORMED. THE CENTRAL VENOUS SYSTEM PRESSURE IS THE PREFERABLY RAISED SO THAT IT IS ABOVE THE ATMOSPHERIC PRESSURE OF THE THORACIC DUCT. IN THIS MANNER, SUBSTANTIALLY ALL THE LYMPTH FLUID IS ALLOWED TO FLOW OUT OF THE THORACIC DUCT FROM THE FIISTULA (THROUGH AN INDWELLING CATHETER) FOR A PROLONGED PERIOD OF TIME. THE LYMPH IS SEPARATED INTO CELLS AND LYMPH FLUID. THE CELLS ARE RETURNED TO THE SUBJECT INTRAVENOUSLY. THE SUBJECT MUST BE GIVEN REPLACMENT FLUID, WHICH CAN BE OF SEVERAL KINDS, BUT ALL LACKING THE SPECIFIC ANTIBODY. BY VIRTUE OF THE ABOVE PROCEDURE, THE PLASMA AND EXTRACELLULAR FLUID OF THE SUBJECT IS CONTINUOUSLY DEPLETED OF FEEDBACK ANTIBODY BECAUSE THE ANTIBODY IS CONTINUOUSLY REMOVED PRIOR TO ITS REACHING THE BLOOD STREAM. BECAUSE OF THIS LACK OF ANTIBODY, IN THE PRESENCE OF ANTIGEN ADMINISTRATION, IT IS FOUND THAT THE ANTIBODY PRODUCTION IN THE LYMPHOID TISSUE AND THEREFORE ITS CONTENT IN THE LYMPH FLUID IS ENORMOUS AND EVER-INCREASES. THE TREMENDOUS INCREASE IN ANTIBODY PRODUCTION APPEARS TO BE SEVERAL ORDERS OF MAGNITUDE GREATER THAN OTHER MODES OF ANTIBODY PRODUCTION AND THEREFORE APPEARS TO HAVE VERY SUBSTANTIAL UTILITY IN THE FIELDS OF BIOLOGY, CHEMISTRY AND VETERINARY AND CLINICAL MEDICINE.
摘要:
A gene, mcl-1, of the bcl-2 family is disclosed along with its nucleotide and amino acid sequence. Also disclosed are diagnostic and therapeutic methods of utilizing the mcl-1 nucleotide and polypeptide sequences.
摘要:
This invention provides a complex consisting essentially of prealbumin, retinol-binding protein, and a retinoid which binds to retinol-binding protein, wherein the concentration of retinoid in the complex is from about 2.times.10.sup.-5 M to about 10.sup.-10 M and the concentration of prealbumin and retinol-binding protein is sufficient to maintain the retinoid concentration from about 2.times.10.sup.-5 M to about 10.sup.-10 M. This invention also provides a composition for enhancing the growth of human B cells in culture which comprises an amount of the complex of this invention effective to enhance the growth of human B cells and a nutrient medium. This invention further provides a method of enhancing growth of human B cells in culture comprising growing the cells in culture in a growth medium containing a concentration of the complex effective to enhance growth of the cells. This invention also provides a synthetic growth medium for culturing animal cells comprising the complex of this invention at a concentration effective to enhance cell growth. This invention also provides a method of preventing the growth of human tumor cells containing growth factor which comprises removing the growth factor from the human tumor cells.
摘要:
Several natural polypeptides (basophil granule proteins, "BGP") derived from the cytoplasmic granules of human basophils, and modified forms thereof, are described. These polypeptides, the DNA which encodes them and antibodies which recognize them, are useful as diagnostics for, and treatments for, pathologies involving inflammatory and IgE-mediated responses, parasitic and helminthic infections, hypersensitivity reactions and certain types of leukocytic leukemias.
摘要:
A defect is provided in cartilage or bone, or both, to excise damaged or pathological tissue, and it is filled with an implant having capability for complete regeneration of the skeletal tissue as a chondrogenic or osteogenic phenotype. The implant comprises cells expressing a chondrocyte phenotype (80.times.10.sup.6 cells/ml) embedded in a biocompatible matrix having about 20% serum, which provides a permissive environment for maturation and transformation of the implant to a fully integrated state with the surrounding tissue. A portion of the implant may comprise a bone segment or a bone substitute.
摘要:
What are disclosed are an isolated tissue protein, denominated PP16, which can be used to prepare anti-sera useful as diagnostic agents, said protein being found in extracts of some human organs such as the placenta, spleen, stomach, and lung and being capable of isolation therefrom and which has the following properties:(a) a carbohydrate content of 4.3.+-.1.6%, comprising 3.4.+-.1.2% of hexoses, 0.24.+-.0.07% hexosamines, 0.06.+-.0.03% of fucose, and 0.6.+-.0.3% of neuraminic acid;(b) a sedimentation coefficient S.sub.20,w.sup.0 of 4.6.+-.0.4 S;(c) a molecular weight, determined in a polyacrylamide gel containing sodium dodecyl-sulfate, of 46,000.+-.3,000;(d) an extinction coefficient E.sub.1 cm.sup.1% (280 nm) of 8.82.+-.0.5;(e) an electrophoretic mobility in the range of albumin; and(f) an isoelectric point of 4.7.+-.0.2.