Provided herein are, inter alia, antibodies, antigen-binding antibody fragments, cells, polynucleotides, compositions, kits, and methods relating to the detection of HBV protein X (HBx), e.g., in vitro and in vivo. Included are antibodies and fragments thereof that bind HBx, as well as kits, cells, and compositions comprising such antibodies and fragments.

The present application contemplates methods of screening therapeutic agents for treating cancer comprising co-culturing immune cells and tumor cells isolated from a subject under conditions that allow the immune cells and the tumor cells to form a cancer spheroid. The cancer spheroid may then be exposed to at least one therapeutic agent, and the responsiveness of the tumor cells the spheroid to the therapeutic agent may be measured.

Disclosed are methods for increasing the fertilization rate of an oocyte in a granulosa cell-oocyte complex, and/or the success rate of in-vitro fertilization by using mitochondrial therapies. Also disclosed are methods of identifying compounds for fertility treatment.

The screening method of the present invention is useful for screening drugs such as insulin secretagogues having an insulin secretagogue activity with minimized side effects (hypoglycemia induction, etc.). The transformant in which a polynucleotide encoding the fusion protein used for the screening method is introduced, the screening kit comprising the transformant, etc. are also useful for screening excellent drugs.

Disclosed are multimeric compounds of K1 domains from the Hepatocyte Growth Factor/Scatter Factor (HGF/SF) being able to induce activation of the tyrosine kinase receptor MET and their uses.

The present invention relates to an inhibitor of the TGS1 enzyme and/or compositions comprising such inhibitor and one or more excipients for the therapeutic treatment of clinical conditions characterized and/or caused by telomeropathies.

The present disclosure provides a high-throughput screening system and method for identification of novel drugs and drug targets. The method enables large-scale analysis of interactions between allogeneic pairs of target cells and immune cells by using an immune-bridge protein, library of guide RNA, and/or 3D tumor model.

The invention provides methods of detecting alpha-synuclein using a capture antibody and a reporter antibody. The capture antibody binds preferentially to full-length alpha-synuclein phosphorylated at residue 129 (PS129 alpha-synuclein) over unphosphorylated full-length alpha-synuclein. The 11A5 antibody is an example of a suitable capture antibody. The reporter antibody binds to an epitope within residues 40-55 of alpha-synuclein. The 23E8 antibody is an example of such an antibody. Because only a small proportion of alpha-synuclein is phosphorylated high sensitivity of detection below picomolar is advantageous.

The invention is based on the identification of the intracellular kinase calcium/calmodulin-dependent protein kinase 1D (CAMK1D) as a key checkpoint inhibitor in tumour cells mediating resistance against cytotoxic T lymphocytes (CTL). CAMK1D was identified in PD-L1 refractory tumours to impair CTL-induced death receptor signalling and apoptosis via caspase inhibition. The invention offers therapeutic approaches involving impairing CAMK1D immune checkpoint function by various CAMK1D inhibitors, especially nucleic acid or small molecule inhibitors of CAMK1D and/or treatments involving CAMK1D inhibitors with death receptor agonists. The medical approaches of the invention are useful for treating subjects suffering from various proliferative disorders; preferably such proliferative disorders that are characterized by a resistance to CTL mediated immune responses, or which are refractory or resistant to treatments with other immune checkpoint therapies, such as PD1-PDL1 antagonistic treatments. Provided are the medical applications and corresponding diagnostic approaches, kits, CAMK1D inhibitors and screening methods for the identification of new therapeutic agents for the treatment of proliferative disorders.

The invention relates to compounds and methods for restoring or preserving cholesterol efflux in a cell infected with Human Immunodeficiency Virus (HIV) by preventing or decreasing an interaction between Negative Regulatory Factor (Nef) protein and Calnexin protein, and methods for screening for such compounds.