Mucus secretions

"Mucus secretions" refers to the process and product of releasing mucus—a viscoelastic, gel-like layer comprised mainly of mucin glycoproteins—by specialized epithelial cells such as goblet cells and submucosal gland cells in various mucosal tissues (e.g., respiratory tract, gastrointestinal tract, and reproductive tract)[1][3][4]. Mucus functions as a physical barrier, trapping pathogens and particulates, lubricating surfaces, and maintaining hydration and tissue integrity, with composition and secretion tightly regulated by stimuli including calcium signals, neural inputs, and inflammatory mediators[1][2][6]. Abnormalities in mucus secretion and composition are implicated in diseases such as asthma, cystic fibrosis, chronic obstructive pulmonary disease (COPD), inflammatory bowel disease, and colon cancer[2][4][6]. Mucus secretion is not itself a discrete molecular target, but rather a biological process executed by a range of molecules (especially mucins such as MUC2, MUC5AC, and MUC5B); thus, "Mucus secretions" is not considered a canonical target molecule or receptor for drug development[1][2][6].

Other names

MucusMucus secretionMucus layerMucosal barrier

Mucolytic action (breakdown of mucus viscosity); Stimulation or inhibition of mucus secretion (e.g., via neural or chemical signaling)