Chicken Biological Reagents: Tools for ADME and Metabolic Stability in The Development of Avian Animal Drugs

Key words: ADME, In Vitro Metabolism, Metabolic Stability, Microsomal Stability, Hepatocyte Stability, Chicken Liver Microsome, Chicken Liver S9 Fraction, Suspension Chicken Hepatocytes, Plateable Chicken Hepatocytes, Chicken Plasma, Chicken Serum, Chicken PBMC

1 IPHASE Products

2 Marketing and Research Status of Chicken Animal Remedy

The chicken animal remedy market is a rapidly growing sector, driven by increasing global demand for poultry meat and eggs, coupled with heightened concerns for food safety and animal welfare. This market, projected to reach significant values in the coming years, is primarily segmented into vaccines, medicinal feed additives, and anti-infectives, with a strong focus on preventive health care and efficient administration methods like oral delivery through feed or water.

Research in chicken animal remedies is highly active, focusing on innovative solutions to reduce antibiotic use and combat prevalent diseases. Key trends include the development of novel vaccines, exploration of antibiotic alternatives like phytogenics, organic acids and bacteriophages, and advanced diagnostic tools for early disease detection. Challenges involve managing disease outbreaks in intensive farming, addressing antimicrobial resistance, and navigating complex regulatory landscapes while meeting consumer demands for antibiotic-free products.

The preclinical development research of veterinary drugs also requires relevant tests such as ADME, drug stability, and drug toxicology. Therefore, for the development of chicken veterinary drugs, we can provide a series of biological material products such as chicken liver microsomes, chicken liver S9 fraction, suspended chicken liver cells, adherent/plateable chicken liver cells, chicken serum, and chicken plasma.

3 Primary Hepatocytes

The liver plays a central role in drug metabolism, making it a cornerstone for in vitro ADME models. Primary hepatocytes, as a liver-derived in vitro model, offer excellent experimental reproducibility and largely retain the liver's metabolic capacity, notably maintaining in vivo-consistent enzyme levels. This makes them the "gold standard" for in vitro drug testing and widely applicable in drug metabolism and toxicology investigations. For metabolic stability and drug safety assessments within in vitro ADME studies, hepatocyte stability research experiments are a preferred choice. The hepatocyte stability test is an in vitro assay designed to evaluate the metabolic stability of drug candidates by quantifying their metabolism rate within liver cells or liver cell preparations.

4 Plateable Chicken Hepatocytes

Adherent chicken hepatocytes/plateable chicken hepatocytes are valuable not only for validating human drugs but also play a critical role in veterinary drug research. While veterinary drug development has historically lagged behind human medicine, the veterinary drug market continues to expand annually. Utilizing plateable chicken hepatocytes as a platform for drug in vitro metabolism and toxicity studies facilitates the advancement of veterinary drugs for poultry, livestock, and mammals, while also clarifying the mechanisms of drug action in animal disease prevention and treatment.

5 Suspension Chicken Hepatocytes

Co-incubation of novel compounds with suspension chicken hepatocytes enables comprehensive studies of metabolic stability within these cells. Furthermore, this method facilitates the isolation of relatively high levels of high-purity metabolites. This offers significant advantages for investigating drug biotransformation characteristics and identifying potential drug metabolites.

6 Chicken Liver Microsome and Microsomal Stability

Compared to whole hepatocytes, chicken liver microsomes offer advantages in terms of ease of operation, cost-effectiveness, and storage convenience. As the primary component responsible for Phase I metabolic enzymes, liver microsomes are extensively utilized in the initial screening of drug metabolism. They are widely applied in in vitro metabolic stability, metabolic phenotyping, enzyme inhibition, and metabolite identification experiments. In metabolic stability studies, microsomal stability research experiments can also be specifically selected.

7 Chicken Liver S9 Fraction

Chicken liver S9 fraction is a suspension solution that contains essential metabolic components and exhibits comprehensive metabolic functions, obtained after removing homogenate sediment from liver tissue. In comparison to both microsomes and cytoplasm, chicken liver S9 fraction possesses the complete activity of both Phase I and Phase II metabolic enzymes, making it a more suitable tool for comprehensively studying the metabolic profile of a drug.

8 Chicken Plasma and Chicken Serum

Chicken biological matrices, specifically chicken plasma/ chicken serum, are invaluable tools in pharmaceutical discovery and development, offering critical insights into drug behavior and biological responses. Their use is essential for advancing veterinary medicine and can also provide comparative data relevant to human health. Chicken plasma and chicken serum are crucial for pharmacokinetic (PK) and pharmacodynamic (PD) studies, enabling researchers to understand how drugs are absorbed, distributed, metabolized, and excreted in chickens. These matrices are also vital for identifying and validating biomarkers of disease progression or drug efficacy, aiding in the development of targeted therapies. Furthermore, analyzing drug concentrations and metabolite profiles in chicken plasma/serum helps assess drug safety and optimize dosing regimens, ensuring effective and well-tolerated treatments for chicken patients.