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    11 March 2026

    Exploring the Human Lipoprotein Profile of PXB-mice and PXB-cells

    Lipids are important biomolecules that contribute to homeostasis. They can act as energy reserves, are used structurally, and play an important role in metabolic processes including drug metabolism. Lipids complex with proteins resulting in a lipoprotein particle that enables the hydrophobic lipids to be transported throughout the body via the blood stream. Changes in the lipoprotein/lipid profile are associated with diseases such as metabolic dysfunction-associated fatty liver disease (MAFLD), atherosclerosis, hypothyroidism, and cardiovascular disease as well as some genetic disorders. As such, therapeutics are being developed to target dyslipidemia.

    Topics icon PXB-mouse, Blog, PXB-cells

    Translational models with human lipoprotein profile

    11 September 2025

    Cutting Edge Gene Editing in Primary Human Hepatocytes

    Gene editing promises cures for a wide range of diseases. Zinc-finger nucleases (ZFNs) were developed as the first programmable editors in the early 2000s, followed by TALENs (Transcription Activator Like Effector Nucleases) about a decade later[1]. However, it was the discovery and application of easy to use CRISPR/Cas9 gene editing methods, that sparked a flurry of new activity since 2013. New gene editing methods that build on this platform continue to be a hot area of research, with the goal of developing techniques that increase specificity and circumvent the need for double-stranded breaks (DBSs) in order to reduce off-target effects and minimize safety concerns[2]. Moreover, increasing the size of sequences that can be modified, and improving editing efficiency in non-dividing cells are also areas of great interest.

    Topics icon Blog, PXB-cells

    Gene Editing PXB-cells PHHs

    9 December 2024

    Targeting cccDNA in Human Hepatocytes: Pathway to a Cure for HBV?

    Globally, around 250 million people are infected with hepatitis B virus (HBV) and more than 1 million more are estimated to become infected yearly. Researching the HBV viral life cycle and identifying potential novel therapeutics is challenging as only human and chimpanzee hepatocytes are permissive to HBV. However, due to the cost and ethical restrictions, alternative models are being explored. In vivo, rodent models including humanized liver chimeric mice (for example PXB-mice) and the AAV-HBV mouse model are being utilized. While these models are useful, each has their own pitfalls.

    Topics icon Blog, PXB-cells

    Primary human hepatocytes on culture plate

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