Growth Factor Binding Proteins (GFBPs) are a class of proteins with crucial regulatory functions, widely distributed in the extracellular matrix, blood, and intracellular environment. Their core role is to specifically bind to various growth factors such as Platelet-Derived Growth Factor (PDGF), Epidermal Growth Factor (EGF), and Fibroblast Growth Factors (FGFs). By regulating the activity, transport, storage, and signal transduction efficiency of growth factors, GFBPs control key biological processes including cell proliferation, differentiation, and migration.

Signaling by EGF growth factors is mediated by the ErbB family of G protein-coupled receptors, which comprises four members (ErbB1 to ErbB4). Binding of the EGF growth factors to the receptors is mediated by the EGF domain, leading to homo or heteroligomerization of the receptors and activating cross-phosphorylation of their intracellular C-terminal domain.

The matrix refers to all components in a sample except the target analyte, such as proteins, lipids, salts, pigments, and small-molecule organic substances in the sample matrix. The matrix effect is a phenomenon where these matrix components interact with the target analyte or the analytical system, interfering with the separation, extraction of the target analyte or the detection response, and ultimately causing the analytical results to deviate from the true values. This type of interference is widely present in biological samples such as serum, plasma, cerebrospinal fluid, tissue homogenates, and cell culture media, and is a common cause of poor repeatability and inaccurate quantification in ELISA experiments.

The proteins of the tumor necrosis factor (TNF) receptor superfamily are a group of cell-surface receptors critically involved in the maintenance of homeostasis of the immune system.

Fatty acid binding proteins (FABPs) bind to fatty acids and other lipids and function as cytoplasmic lipid chaperones (1,2). They participate in the transport of fatty acids and other lipids to various cellular pathways (2). Research studies have shown that common variants of the human liver FABP gene FABP1 play a role in the development of type 2 diabetes and insulin resistance (3).

Compared with traditional antibody preparation methods, the antibodies produced by recombinant antibody technology exhibit more prominent application advantages due to their unique technical characteristics, providing strong support for research and practice in related fields.

The processes of fatty acid and lipid metabolism are vital for cellular nutrient and energy maintenance. Cytoplasmic acetyl-CoA synthetase (AceCS1) catalyzes the conversion of acetate and CoA to acetyl-CoA. Acetyl-CoA synthesized by AceCS1 is used for fatty acid and lipid biosynthesis (1,2).

ELISA is one of the fundamental experiments in immunology, and most researchers in the life sciences field are familiar with it. Owing to its characteristics of strong specificity, high sensitivity, and accurate quantitation, ELISA technology is widely applied in both basic scientific research and clinical diagnosis. It is believed that many of our followers who pay attention to us have also performed ELISA experiments. We have compiled a list of common issues that may arise during ELISA experiments for your reference.

Recombinant antibodies can be classified into five major categories: chimeric antibodies, humanized antibodies, fully human antibodies, small-molecule antibodies, and bispecific antibodies.

Chemokines are members of a large family of small soluble proteins, which were discovered by their adhesion control, chemotaxis and leukocyte activation abilities. Nevertheless, it is now known they are involved in other equally important functions, namely, angiogenesis, haematopoiesis, embryologic development, B and T cell development, dendritic cell maturation, inflammation, infection, tumour growth and metastasis.