The Encapsulated Liver Tissue as a treatment for acute liver failure: proof-of-concept efficacy and safety in large animals using liver organoids composed of primary cells

Challenge: Acute Liver Failure (ALF) is an extremely severe, progressive syndrome resulting from a sudden insult on the liver that exceeds the organ’s innate regenerative capacity. No effective treatment exists for ALF except for liver transplant, which is limited by organ shortage, heavy morbidity and need of lifelong immunosuppression treatments. Temporary replacement of liver functions…

Topic nanovectors for targeted gene therapy of cutaneous psoriasis

Challenge: Psoriasis is a chronic inflammatory skin disease that manifests itself as scaly patches, especially on the elbows, knees and scalp. The skin undergoes a profound modification of the epidermis, with an infiltration of inflammatory cells and increased proliferation of skin cells. Inflammatory modulators called Interleukin (IL) -17 and -23 have been identified as key…

Platform to target small-molecule therapeutics to bone – Novel prodrugs to selectively deliver therapeutics to bone

Challenge: Musculoskeletal diseases represent the second largest contributor to disability worldwide (WHO). Despite efforts made in the past few years, drugs development in bone therapy is challenging. Indeed, bone is a difficult tissue to drug due to its material properties and limited vascularity, requiring high drug doses and frequent administration to achieve efficacy. Most FDA…

Cycloinformatics: A Platform to Rapidly Produce Macrocyclic New Chemical Entities to inhibit Protein- Protein Interactions

Challenge: While small molecules have delivered great value for targets featuring small binding cavities, their use against challenging targets with featureless interfaces are quite limited. Although such targets are better tackled by biologics, such compounds usually have poor cell penetration and limited oral bioavailability. There is thus a need to design biologics, such as peptides,…

Defining the Rules That Will Enhance the Cell Permeability and Oral Bioavailability of Macrocycles

Challenge: Encycle Therapeutics has developed a novel synthetic platform to design enhanced peptide macrocycles called nacellins. Nacellins molecules approximate the dimensions of beta turns extremely well and, although reminiscent of conventional cyclic peptides, exhibit substantially improved passive membrane permeability, as well as stability in the gut and inside cells. However, further chemical modifications of nacellins…

RecyTag technology for extended half-lives of small biologics

Competition:Programme EXPLORE 2013Funding:$499,000 / 2 years Platform technology aimed at increasing the half–life of small biologics by conjugating FcRn-binding molecules. Protein-based therapeutics, also called biologics, have recently made significant inroads into the pharmaceutical market, and are being used to treat chronic diseases and cancer. In addition to acting potently and specifically on their molecular targets,…

Developing open access protein degradation tools for drug discovery

Challenge: PROTACs (PROteolysis TArgeting Chimeras) are bifunctional drugs that recruit a ubiquitin E3 ligase to a targeted protein, thereby catalyzing poly-ubiquitylation of the target and its subsequent degradation by the proteasome. PROTAC induced protein degradation offers advantages over classical enzyme inhibition: it acts via a catalytic instead of occupancy-based mechanism and shows superior efficacy with…

A Screening Technology to Improve the Discovery of Function-Modifying Antibodies Against Membrane Protein Targets

Challenge: G-protein-coupled receptors (GPCRs) are the largest family of cell surface receptors and represent an important class of targets that could be modulated by antibody (Ab)-based therapeutics. However, finding function-modifying antibodies against GPCRs remains a challenge due to the difficulty of preparing purified antigens, poor immunogenicity, small extracellular loops and low expression levels on cells.…

Artificial Liver for Safer and more Effective Drugs: Three-Dimensional Liver Tissue Models for High-Throughput Screening of the Efficacy and Hepatotoxicity of Drugs

Challenge: Poor efficacy and unpredictable toxic effects are leading causes for the removal of drugs from the market. Many drugs act unpredictably in patients because the preclinical studies fail to accurately model human biology. In particular, the liver requires special attention as it is responsible for metabolizing drugs. Thus, improved liver models could identify and…