Compositions and methods are provided for producing materials having increased immunoglobulin binding capacities, the materials including full-length or truncated forms of protein A, protein G, protein A/G, protein L and other immunoglobulin-binding proteins or peptides, which moieties contain polypeptide domains, or polypeptide-oligopeptide combinations. Also provided are separation matrices containing the moieties and methods of using the separation matrices for separation of immunoglobulins or immunoglobulin containing proteins.

Protein enriched micro-vesicles and methods of making and using the same are provided. Aspects of the methods include maintaining a cell having a membrane-associated protein comprising a first dimerization domain and a target protein having a second dimerization domain under conditions sufficient to produce a micro-vesicle from the cell, wherein the micro-vesicle includes the target protein. Also provided are cells, reagents and kits that find use in making the micro-vesicles, as well as methods of using the micro-vesicles, e.g., in research and therapeutic applications.

Protein enriched micro-vesicles and methods of making and using the same are provided. Aspects of the methods include maintaining a cell having a membrane-associated protein comprising a first dimerization domain and a target protein having a second dimerization domain under conditions sufficient to produce a micro-vesicle from the cell, wherein the micro-vesicle includes the target protein. Also provided are cells, reagents and kits that find use in making the micro-vesicles, as well as methods of using the micro-vesicles, e.g., in research and therapeutic applications.

Provided herein are a device and a method for preparation of immobilized proteins, enzymes or cells on a carrier to achieve the industrial batch production of the immobilized proteins, enzymes or cells.

Provided herein are a device and a method for preparation of immobilized proteins, enzymes or cells on a carrier to achieve the industrial batch production of the immobilized proteins, enzymes or cells.

A compound for the sequestration of undesirable antibodies associated with an autoantibody-mediated condition, such as Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS), postural orthostatic tachycardia syndrome (POTS), Autoimmune Autonomic Ganglionopathy (AAG), Idiopathic Dilated Cardiomyopathy (IDC), Chronic Chagas heart disease (cChHD) and other neurological, neuromuscular and neuropsychiatric disorders, in particular, autoimmune channelopathies is provided. The compound includes a biopolymer scaffold and at least two peptides with a sequence length of 6-13 amino acid, wherein each of the peptides independently comprises a 6-amino-acid fragment of an amino-acid sequence of a human neuroreceptor, optionally wherein at most three amino acids are independently substituted by any other amino acid. Also provided are pharmaceutical compositions including the compound, as well as methods of ameliorating or treating the conditions mentioned above.

A compound for the sequestration of anti human muscle nicotinic acetylcholine receptor (AChR) autoantibodies, which are involved in the pathogenesis of MG is provided. The compound includes an inert biopolymer scaffold and at least two peptides with a sequence length of 6-13 amino acids, wherein each of the peptides independently includes an amino-acid sequence including an AChR main immunogenic region (MIR) epitope or mimotope. Also provided are pharmaceutical compositions including the compound, as well as a method of sequestering one or more antibodies present in an individual.

A compound for the sequestration of anti human muscle nicotinic acetylcholine receptor (AChR) autoantibodies, which are involved in the pathogenesis of MG is provided. The compound includes an inert biopolymer scaffold and at least two peptides with a sequence length of 6-13 amino acids, wherein each of the peptides independently includes an amino-acid sequence including an AChR main immunogenic region (MIR) epitope or mimotope. Also provided are pharmaceutical compositions including the compound, as well as a method of sequestering one or more antibodies present in an individual.

The present disclosure provides complexes and compositions comprising particles, microparticles or nanoparticles, for delivery of payloads into a cell or across a polarized epithelial cell. The compositions can comprise a payload in a pill or tablet for delivery of the payload into or across a polarized epithelial cell.

The present disclosure provides complexes and compositions comprising particles, microparticles or nanoparticles, for delivery of payloads into a cell or across a polarized epithelial cell. The compositions can comprise a payload in a pill or tablet for delivery of the payload into or across a polarized epithelial cell.