Technical Articles

Tumor necrosis factor α is a pleiotropic cytokine that acts on various cell types and has been identified as a key regulator of inflammatory responses, playing a role in the pathogenesis of numerous inflammatory and autoimmune diseases.

TNFR-1/CD120a protein is a typical member of the tumor necrosis factor receptor superfamily, and its gene is located on the short arm of human chromosome 12. This protein consists of 455 amino acid residues, with a theoretical molecular weight of approximately 55 kilodaltons, and belongs to the type I transmembrane glycoprotein.

Stem cell factor is an important hematopoietic growth factor belonging to the type III transmembrane protein family. This protein consists of 273 amino acid residues, with a molecular weight of approximately 31 kilodaltons, and exists in two forms: membrane-bound and soluble.

The RSPO3 protein is a member of the R-spondin protein family, which includes four members: RSPO1, RSPO2, RSPO3, and RSPO4. The RSPO3 protein consists of approximately 270 amino acids, has a molecular weight of about 30 kilodaltons, and is a secreted glycoprotein.

Cyclic adenosine monophosphate (cAMP) is one of the most important second messenger molecules in cells, involved in regulating various physiological and pathological processes. This molecule is generated from ATP by the catalysis of adenylate cyclase and hydrolyzed to AMP by phosphodiesterase.

STAT6 is a crucial member of the signal transducer and activator of transcription (STAT) family, playing a key role in cytokine signal transduction and the regulation of immune responses. Abnormal activation of STAT6 is closely associated with the development and progression of various diseases, making it an important therapeutic target.

The prognosis of pancreatic ductal adenocarcinoma is poor, primarily due to low diagnostic efficiency and strong tumor drug resistance. The activation of pancreatic stellate cells and the formation of dense stroma are key factors contributing to the aggressive nature of this tumor.

Leukemia inhibitory factor belongs to the IL-6 cytokine family and is a multifunctional glycoprotein. This protein consists of 180 amino acid residues, with a molecular weight of approximately 20 to 25 kilodaltons, and contains seven α-helical domains, forming a typical four-helix bundle structure.

IL-23 protein is a key pro-inflammatory cytokine that plays a significant role in the development of chronic inflammatory diseases. This protein is primarily produced by activated antigen-presenting cells such as dendritic cells, macrophages, and monocytes.

The IL-18 protein belongs to the IL-1 family of cytokines and possesses the ability to induce interferon-γ production. Billions of years of evolution have shaped the diversity, complexity, and adaptability of immune responses, and the unique biological characteristics of the IL-18 protein in barrier maintenance, danger signal transmission, and immune response amplification are a manifestation of this evolutionary process.