The present invention relates to compositions and methods for the prevention, treatment, and diagnosis of Hepatitis B virus (HBV) infection, and discloses peptides, polypeptides, and polynucleotides that can be used to stimulate a CTL response against HBV infection. The peptide and/or proteins of the invention may be used as a therapeutic drug to stimulate the immune system to recognize and eliminate HBV infection in infected cells or as a vaccine for the prevention of disease.

Provided is a method for expanding a human DC cell. The method includes the step of contacting a cell sample of a DC cell to be expanded with a viral transactivator protein sourcing from simian-T-lymphotropic virus (STLV). Also provided are an expanded DC cell prepared by the method, and a DC cell and data repository constructed by the method.

The present disclosure provides compositions, methods, systems, and devices for polynucleotide processing and antigen screening. Polynucleotide processing may be useful for a variety of applications. Antigen screening may comprise the use of one or more engineered cells. Engineered cells may be useful for characterizing one or more analytes including, for example, a polypeptide antigen.

The present invention relates to detection molecules comprising at least one binding molecule, at least one linker and at least one label, and detection methods making use of same. The invention provides a high-throughput method for detection, isolation and/or identification of specific entities or cells.

The present disclosure provides for methods and compositions for the modulation of CD5 in a subject. Also provided are methods of detecting and monitoring diseases, such as inflammatory and autoimmune diseases.

The present disclosure relates to PD-L1-binding molecules comprising a Shiga toxin effector region, a PD-L1-binding region, and a T cell epitope, and pharmaceutical compositions thereof. The PD-L1 binding molecules and pharmaceutical compositions thereof have uses for selectively killing specific cells (e.g., PD-L1 positive tumor cells and/or immune cells), for selectively delivering cargos to specific cells (e.g., PD-L1 positive tumor cells or immune cells), and as therapeutics for treating or slowing the progression of cancer (e.g., non-small cell lung cancer or squamous cell carcinoma of the head and neck). The present disclosure also relates to clinical methods for use of the disclosed PD-L1 binding molecules for treating a subject in need thereof.

The instant invention provides soluble fusion protein complexes and IL-15 variants that have therapeutic and diagnostic use, and methods for making the proteins. The instant invention additionally provides methods of stimulating or suppressing immune responses in a mammal using the fusion protein complexes and IL-15 variants of the invention.

Systems and methods are presented that allow for selection of tumor neoepitopes that are filtered for various criteria. In particularly contemplated aspects, filtering includes a step in which the mutation leading to the neoepitope is ascertained as being located in a cancer driver gene.

A system for selecting an immunogenic peptide composition comprising a processor and a memory storing processor-executable instructions that, when executed by the processor, cause the processor to create a first peptide set by selecting a plurality of base peptides, wherein at least one peptide of the plurality of base peptides is associated with a disease, create a second peptide set by adding to the first peptide set a modified peptide, wherein the modified peptide comprises a substitution of at least one residue of a base peptide selected from the plurality of base peptides, and create a third peptide set by selecting a subset of the second peptide set, wherein the selected subset of the second peptide set has a predicted vaccine performance, wherein the predicted vaccine performance has a population coverage above a predetermined threshold, and wherein the subset comprises at least one peptide of the second peptide set.

Methods for targeting a tumor antigen for immunotherapy based on HLA allele type and the mutations present in the tumor antigen are presented. A patient's HLA allele type and a tumor antigen derived from a mutation in cancer driver gene can be matched with a majority allele type having a minimum affinity to the same tumor antigen or with those of a plurality of patients with a history of cancer treatment. Upon matching, a cancer treatment against the tumor antigen can be selected and administered to the patient to achieve a desired effect.