Insect control nanobodies are provided. Accordingly there is provided a nanobody which specifically binds to an insect polypeptide selected from the group consisting of: a polypeptide comprising a chitin binding domain (CBD), V-ATPase subunit c, trehalase, cytochrome p450 monooxygenase, chitin deacetylase, chitin synthase and NPC1 sterol transporter, wherein binding of the nanobody to the insect polypeptide confers an insect control activity to the nanobody. Also provided are polynucleotides encoding the nanobody, host cells expressing the nanobody and methods of using it.

The present invention relates to the field of single-domain antibodies (sdAb) directed towards the glycans of the globo series, and in particular Globo H. More in detail, the present invention relates to sdAbs specifically binding one or more glycans selected from Globo H, Gb3, Gb4, and Gb5. The invention also provides polypeptides comprising multimeric single domain antibodies, as well as T cell chimeric antigen receptors comprising said anti-glycan sdAbs. Thus, the present invention provides polypeptides that can be used for targeting and/or treating several types of cancers associated with cells over-expressing said Globo H and/or Gb3, Gb4, Gb5. The present invention also relates to recombinant nucleic acid sequences encoding said polypeptides, and expression vectors and host cells comprising the same.

The present invention relates to the field of structural biology. More specifically, the present invention relates to an antigen-binding chimeric protein, called a MegaBody™, specifically binding a nanodisc, more specifically a membrane-scaffold protein (MSP)n which may be part of the nanodisc. The invention further provides for methods and uses of said nanodisc-specific antigen-binding chimeric proteins in three-dimensional high-resolution structural analysis of membrane proteins assembled within nanodiscs. The MSP-binding MegaBodies of the invention provide for a generic tool in membrane protein structural biology, more particular in Cryo-EM, by reducing preferred particle orientation of nanodiscs and of the entrapped target membrane proteins.

Single-domain monoclonal antibodies that specifically bind B7H3 (also known as CD276) are described. The single-domain antibodies include camel V.sub.HH and rabbit VH domain nanobodies selected from phage display libraries. Chimeric antigen receptors (CARs) and other antibody conjugates targeted to B7H3 are also described. The single-domain antibodies and conjugates thereof can be used for the diagnosis and treatment of B7H3 expressing solid tumors.

The present invention relates, in part, to pegylated chimeric proteins comprising one or more targeting moieties, linkers, and one or more signaling moieties, or variants thereof, and their use as therapeutic agents.

The present disclosure discloses a nano antibody for neutralizing a toxicity of SARS-CoV-2 and preparation method thereof. The nano antibody comprises a complementarity determining region CDR comprising a CDR1, a CDR2 and a CDR3; an amino acid sequence of the CDR1 is selected from at least one of amino acid sequences shown in SEQ ID NO.1 and SEQ ID NO.2; an amino acid sequence of the CDR2 is selected from at least one of amino acid sequences shown in SEQ ID NO.3, SEQ ID NO.4, and SEQ ID NO.5; and an amino acid sequence of the CDR3 is selected from at least one of amino acid sequences shown in any one of SEQ ID NO.6 to SEQ ID NO.9. The nano antibody for neutralizing the toxicity of SARS-CoV-2 has the advantages of a small molecular weight, a high affinity with the SARS-CoV-2, a low production cost, and the like.

The present invention relates to anti-human OX40L antibodies, new medical uses and methods.

Aspects of the present disclosure relate to systems and methods for manufacturing biologically-produced pharmaceutical products. Some of the systems described herein comprise an upstream component comprising a bioreactor and at least one filter (e.g., a filter probe) integrated with a downstream component comprising a purification module comprising at least a first partitioning unit and a second partitioning unit. In some embodiments; these integrated biomanufacturing systems may be operated under continuous or conditions and may be capable of efficiently producing pure, high-quality pharmaceutical products.

There are provided inter alia polypeptides capable of inhibiting IL-7 and/or L-TSLP binding to IL-7R (IL-7R), as well as to constructs and pharmaceutical compositions comprising these polypeptides.

Presently disclosed are immune cells (i.e., the Baize Super Cells) that have been engineered to express and incorporate an immune cell activator polypeptide comprising an extracellular label domain into their cell surface membrane. Also disclosed are immune cells that have been engineered to secrete one or more polypeptide effector molecules, as well as immune cells engineered to express both molecules. Nucleic acid vectors for expressing these molecules in immune cells are disclosed. A bispecific polypeptide that can be used to specifically bind an immune cell expressing an immune cell activator polypeptide to another cell is also disclosed. A system including both the immune cells and various bispecific polypeptides that bind to different cell surface proteins on the same or different cell targets, which can be used to proliferate the immune cells in vivo and treat various kinds of tumors, for example, is also disclosed.