生命科学科研大百科

This document focuses on gluconeogenesis and its associated key enzymes, along with relevant antibodies and research references. It elaborates on the functions of multiple enzymes involved in gluconeogenesis and glycolysis, such as enolase isoforms (ENO1/2/3), fructose-1,6-bisphosphatase 1 (FBP1), glucose-6-phosphate isomerase (GPI), phosphoenolpyruvate carboxykinase (PCK1/2), phosphoglycerate mutase 1 (PGAM1), phosphoglycerate kinase 1 (PGK1), and pyruvate carboxylase (PC). These enzymes play pivotal roles in metabolic processes, with abnormal expression linked to tumor progression (e.g., breast cancer, lung cancer, clear cell renal cell carcinoma) and other diseases. Additionally, the document presents a regulatory diagram of glucose metabolism (encompassing glycolysis, gluconeogenesis, and the tricarboxylic acid cycle) and provides detailed information on specific antibodies targeting the aforementioned enzymes, including their catalog numbers, reactivities, and applications. Relevant research references are also included to support the discussed findings.

GATA proteins comprise a group of transcription factors that are related by the presence of conserved zinc finger DNA-binding domains, which bind directly to the nucleotide sequence core element GATA. There are six vertebrate GATA proteins, designated GATA-1 to GATA-6. Although they are commonly divided as hematopoietic (GATA-1-3) or cardiac (GATA-4-6) factors, GATA proteins are expressed in a wide variety of tissue and play critical roles in embryonic development and organ differentiation.

The interaction between cancer and the host immune system mainly occurs in the reactive tissue stroma surrounding tumors, an area known as the Tumor Immune Microenvironment (TIME). The breakthrough clinical application of immune checkpoint inhibitors, particularly targeted therapies against Programmed Death Protein 1 (PD-1, a T-cell co-inhibitory receptor) and Programmed Death Ligand 1 (PD-L1, also known as B7-H1/CD274), has not only propelled cancer immunotherapy into a new era but also made functional analysis of TIME a core focus in both research and clinical settings. Precise characterization of TIME's cellular composition, functional states, and molecular interaction networks is a crucial prerequisite for screening predictive biomarkers for immunotherapy response. Furthermore, deeply clarifying the dual pro-cancer/anti-cancer mechanisms of various immune cells in TIME and their dynamic associations with tumor cells can provide core support for developing novel immunotherapeutic strategies. However, the high heterogeneity of TIME and the challenge of detecting low-abundance immune molecules pose severe challenges to traditional analytical techniques, urgently requiring highly sensitive, multiplex-targeted in situ detection tools to overcome this dilemma.

The Forkhead signaling pathway is a conserved, evolutionarily ancient molecular network centered on Forkhead box (FOX) transcription factors—a family of proteins characterized by a highly conserved "Forkhead" DNA-binding domain (≈100 amino acids) that mediates sequence-specific binding to target gene promoters.

DSBs are repaired by an end joining mechanism or by homologous recombination (HR).

Antibodies, known as immunoglobulins, are typically "Y"-shaped. In most mammals, immunoglobulins consist of five types: IgG, IgM, IgA, IgD, and IgE, which differ from one another in size, charge, amino acid composition, and carbohydrate content. Meanwhile, each type of antibody has subclasses with heterogeneity among them; for instance, the four subtypes of IgG (IgG1, IgG2, IgG3, IgG4) in humans and mice do not share homology. Besides, IgY antibodies are also present in avian species.

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).

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).

The neurotrophins are a family of closely related proteins that were first identified as survival factors for sympathetic and sensory neurons and have since been shown to control a number of aspects of survival, development, and function of neurons in both the central and peripheral nervous systems.