C07K16/42

METHODS OF PERMEABILIZING THE BLOOD BRAIN BARRIER
20230233481 · 2023-07-27 ·

The present invention relates to using monoterpene or sesquiterpene to permeabilize the blood brain barrier.

Compositions and methods for treating IgE-mediated disorders

The present invention relates to immunoglobulins that bind IgE and FcγRIIb with high affinity, said compositions being capable of inhibiting cells that express membrane-anchored IgE. Such compositions are useful for treating IgE-mediated disorders, including allergies and asthma.

Methods of use for IL-22 in the treatment of gastrointestinal graft vs. host disease

The present invention provides methods and compositions for the use of IL-22 for treating conditions of intestinal injury and inflammatory conditions such as graft vs. host disease. Specifically, IL-22 can be used to increase Intestinal Stem Cell (ISC) recovery and for enhancing immune reconstitution following allogeneic hematopoietic transplantation. In particularly preferred embodiments, the present invention provides methods of using therapeutic IL-22, including a dimeric form of IL-22, in therapeutic compositions for treating graft vs. host disease, including hepatic, thymic, gastrointestinal, or other graft vs. host disease in hematopoietic stem cell transplant patients and in patients with inflammatory intestinal conditions.

MONOCLONAL ANTIBODY FOR DETECTION OF CAR-T CELLS, KIT AND APPLICATION
20230027639 · 2023-01-26 ·

A monoclonal antibody used for specifically binding to CAR molecules, which is characterized in that the monoclonal antibody comprises a light chain and a heavy chain, the light chain comprises CDR regions having an amino acid sequence as shown in SEQ ID NO: 1-3, and the heavy chain comprises CDR regions having an amino acid sequence as shown in SEQ ID NO: 5-7. By using the described monoclonal antibody or a CAR-T cell detection kit, the steps of CAR-T cell detection are simple, detection time is short, and the detection results are stable. An anti-FMC63 ScFv antibody can reduce the cost of detecting universal anti-CD19 CAR-T cells.

MONOCLONAL ANTIBODY FOR DETECTION OF CAR-T CELLS, KIT AND APPLICATION
20230027639 · 2023-01-26 ·

A monoclonal antibody used for specifically binding to CAR molecules, which is characterized in that the monoclonal antibody comprises a light chain and a heavy chain, the light chain comprises CDR regions having an amino acid sequence as shown in SEQ ID NO: 1-3, and the heavy chain comprises CDR regions having an amino acid sequence as shown in SEQ ID NO: 5-7. By using the described monoclonal antibody or a CAR-T cell detection kit, the steps of CAR-T cell detection are simple, detection time is short, and the detection results are stable. An anti-FMC63 ScFv antibody can reduce the cost of detecting universal anti-CD19 CAR-T cells.

ANTI-IDIOTYPIC ANTIBODIES TO BCMA-TARGETED BINDING DOMAINS AND RELATED COMPOSITIONS AND METHODS

Provided are anti-idiotype antibodies that specifically recognize anti-BCMA antibody moieties, in particular, anti-BC-MA antibody moieties present in recombinant receptors, including chimeric antigen receptors (CARs). The disclosure further relates to uses of antiidiotype antibodies for specifically identifying and/or selecting cells expressing such recombinant receptors, such as anti-BCMA CAR T cells. The disclosure further relates to uses of anti-idiotype antibodies for specifically activating such cells.

BIFUNCTIONAL BRIDGING COMPOSITIONS FOR VIRAL TRANSDUCTION

This disclosure provides compositions and methods for delivering a viral composition to cells, e.g., for cell surface receptor-mediated uptake, and enhanced viral transduction. Viral transduction can be achieved via a bifunctional bridging composition that includes a moiety that binds to a cell surface receptor ligand and a linked bridging moiety that binds to a viral composition. Also provided are modified viral compositions comprising a bridging composition specifically bound via its bridging moiety to the viral composition. Modified viral compositions and methods for reducing levels or titers of neutralizing antibodies in a subject in need of viral therapy, e.g., gene therapy, are provided. In some embodiments, the modified viral composition includes empty viral particles that bind and internalize neutralizing autoantibodies. Modified viral compositions including empty viral particles can be administered prior to viral therapy. Also provided are pharmaceutical compositions and kits including a bifunctional bridging composition and/or modified viral compositions.

BIFUNCTIONAL BRIDGING COMPOSITIONS FOR VIRAL TRANSDUCTION

This disclosure provides compositions and methods for delivering a viral composition to cells, e.g., for cell surface receptor-mediated uptake, and enhanced viral transduction. Viral transduction can be achieved via a bifunctional bridging composition that includes a moiety that binds to a cell surface receptor ligand and a linked bridging moiety that binds to a viral composition. Also provided are modified viral compositions comprising a bridging composition specifically bound via its bridging moiety to the viral composition. Modified viral compositions and methods for reducing levels or titers of neutralizing antibodies in a subject in need of viral therapy, e.g., gene therapy, are provided. In some embodiments, the modified viral composition includes empty viral particles that bind and internalize neutralizing autoantibodies. Modified viral compositions including empty viral particles can be administered prior to viral therapy. Also provided are pharmaceutical compositions and kits including a bifunctional bridging composition and/or modified viral compositions.

TREATMENT OF FOOD ALLERGY USING ANTI-IGE ANTIBODIES

The present disclosure relates to methods for modifying the course of a disease or disorder involving IgE, in particular an IgE mediated food allergy to one or more allergens, in subjects having such disease or condition.

ANTIBODIES WITH MODIFIED AFFINITY TO FCRN THAT PROMOTE ANTIGEN CLEARANCE

An objective of the present invention is to provide methods for facilitating antigen-binding molecule-mediated antigen uptake into cells, methods for facilitating the reduction of antigen concentration in plasma, methods for increasing the number of antigens to which a single antigen-binding molecule can bind, methods for improving pharmacokinetics of antigen-binding molecules, antigen-binding molecules improved for facilitated antigen uptake into cells, antigen-binding molecules capable of facilitating the reduction of antigen concentration in plasma, antigen-binding molecules capable of repeatedly binding to antigens, antigen-binding molecules with improved pharmacokinetics, pharmaceutical compositions comprising such an antigen-binding molecule, and methods for producing those described above.

The present inventors discovered that antigen uptake into cells is facilitated by an antibody having human FcRn-binding activity at the plasma pH and a lower antigen-binding activity at the early endosomal pH than at the plasma pH; such antibodies can increase the number of antigens to which a single antibody molecule can bind; the reduction of antigen in plasma can be facilitated by administering such an antibody; and antibody pharmacokinetics can be improved by using such antibodies.