β-Glucan immunomodulatory receptors (primarily Dectin-1, complement receptor 3, and Toll-like receptors)

The query refers to a broad biological process—modulation of immune responses via alteration of the gut microbiota and anti-inflammatory effects of phytochemicals such as β-glucan and flavonoids—not a single discrete molecular target. β-Glucans are varied polysaccharides found in cereals, yeast, fungi, and bacteria. They exert immunomodulatory and anti-inflammatory effects primarily through interaction with specific receptors on immune cells, namely Dectin-1 (a C-type lectin receptor), complement receptor 3 (CR3), and Toll-like receptors (TLR2, TLR4, TLR6)[1][3][5]. Binding of β-glucans to these pattern-recognition receptors (PRRs) triggers cellular signaling pathways that enhance phagocytosis, stimulate cytokine production, and regulate both innate and adaptive immunity[1][5][6]. The immunological effects of β-glucans are further influenced by interactions with the gut microbiota, where microbial fermentation may produce metabolites (such as butyrate and lactic acid) associated with anti-inflammatory activity and improved metabolic health[2]. However, the target listed—"Immune response modulation via gut microbiota alteration and anti-inflammatory effects of phytochemicals such as beta-glucan and flavonoids"—is too broad and functionally refers to multiple molecular targets (a set of PRRs) and physiological effects, not a single defined molecule or receptor. Important caveat: The target described is not a canonical therapeutic target (such as a defined enzyme, receptor, or transporter) but a complex physiological mechanism involving several receptor types (notably Dectin-1, CR3, and TLRs) and cellular pathways. Therefore, structured target information cannot be assigned to a single molecule; the entry is best classified as incorrect or overly broad[1][3][5].

Other names

β-Glucan receptorsDectin-1Complement receptor 3 (CR3)Toll-like receptor 2/4/6 (TLR2/4/6)Pattern recognition receptors (PRR)C-type lectin receptorGlucan receptor

Ligand-induced activation of innate immune receptors (e.g., Dectin-1, CR3, TLR2/4/6), leading to downstream immune cell activation and anti-inflammatory or immune-stimulating effects