RT Journal Article T1 A Standardized Extract of Lentinula edodes Cultured Mycelium Inhibits Pseudomonas aeruginosa Infectivity Mechanisms. A1 Tena-Garitaonaindia, Mireia A1 Ceacero-Heras, Diego A1 Montoro, Maria Del Mar Maldonado A1 de Medina, Fermin Sanchez A1 Martinez-Augustin, Olga A1 Daddaoua, Abdelali K1 AHCC® K1 PCR real time (qPCR) K1 Pseudomonas aeruginosa K1 immune response K1 internalization K1 motility and biofilm K1 prebiotic K1 secretion system and adhesion AB The priority pathogen list of the World Health Organization classified Pseudomonas aeruginosa as the second top critical pathogen. Hence, the development of novel antibacterial strategies to tackle this bacterium is highly necessary. Herein we explore the potential antibacterial effect of a standardized extract of cultured mycelium of Lentinula edodes (AHCC®) on P. aeruginosa. AHCC® was found to inhibit the growth rate and biofilm formation of strain PAO1. No change in swarming was observed, but AHCC® hampered swimming and twitching motility. In accordance, a decreased expression of metabolism, growth, and biofilm formation genes was shown. AHCC® also diminished the levels of exotoxin A and bacteria inside IEC18 cells and the secretion of IL-6, IL-10 and TNF by infected macrophages. This effect was related to a reduced phosphorylation of MAPKs and to bacteria internalization. Taken together, our data suggest that AHCC® has a potential role to prevent P. aeruginosa infections and may lead to the development of new therapies. PB Frontiers Research Foundation SN 1664-302X YR 2022 FD 2022-02-14 LK http://hdl.handle.net/10668/20617 UL http://hdl.handle.net/10668/20617 LA en NO Tena-Garitaonaindia M, Ceacero-Heras D, Montoro MDMM, de Medina FS, Martínez-Augustin O, Daddaoua A. A Standardized Extract of Lentinula edodes Cultured Mycelium Inhibits Pseudomonas aeruginosa Infectivity Mechanisms. Front Microbiol. 2022 Mar 16;13:814448 DS RISalud RD Apr 6, 2025