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Biology subjects

N, P.

Publications and source records attributed to N, P..

2 recordsLinked to original sources

Customized feminine hygiene wash containing postbiotics from Lactobacillus spp. to treat Urinary Tract Infections (UTI)

The rising prevalence of antimicrobial resistance has intensified the search for innovative therapeutic strategies, particularly in the prevention of urinary tract infections (UTIs). This study presents the development and evaluation of a novel postbiotics vaginal wash formulated to prevent UTIs by utilizing metabolites derived from indigenous vaginal Lactobacillus spp. The primary objective was to create a cost-effective, stable, and non-invasive solution targeting uropathogenic bacteria. Key metabolites, including tryptamine, (-)-terpinen-4-ol, and itaconic anhydride, were identified from cell free supernatant of vaginal Lactobacillus and incorporated into a poloxamer 407-based formulation. In vitro assays demonstrated significant bioactivity against uropathogenic bacteria, effectively inhibiting bacterial colonization and biofilm formation. Preclinical validation was conducted using BALB/c mice models to assess both the safety and efficacy of the vaginal wash. Results indicated a substantial reduction in infection rates among treated mice, with no observed adverse effects, confirming the formulations safety profile. In conclusion, this novel postbiotics vaginal wash represents a promising non-invasive therapeutic approach for UTI prevention. By harnessing bioactive metabolites from human vaginal Lactobacillus spp., the formulation offers a potential solution to combat antimicrobial resistance while improving womens health outcomes. Further clinical studies are warranted to validate these findings and explore broader applications in clinical practice, paving the way for new strategies in managing UTIs and enhancing overall female health.

microbiology↗

Epithelial to Mesenchymal Transition in the Endometrium Mediated by HOXA10 drives Embryo Implantation

In mammalian reproduction, a significant proportion of embryos fail to implant despite a receptive uterus, suggesting that defects in epithelial remodelling at the embryo-uterine interface contribute to implantation failure. The molecular programs enabling such remodelling remain incompletely understood. Here, we identify a conserved transcriptional circuit involving HOXA10 and TWIST2 that regulates epithelial plasticity in the endometrium via partial epithelial-to-mesenchymal transition (pEMT). HOXA10, a transcription factor essential for uterine receptivity, is specifically downregulated in the luminal epithelium at implantation in mice, hamsters, and monkeys. Integrated CUT&RUN and transcriptomic profiling in human endometrial epithelial cells reveal that HOXA10 directly activates epithelial gene networks and represses mesenchymal programs. HOXA10 loss, both in vitro and in vivo, induces a pEMT state with increased cell motility. Mechanistically, HOXA10 represses TWIST2, a core EMT regulator; its derepression promotes mesenchymal gene expression and epithelial cell displacement. TWIST2 knockdown restores epithelial identity and impairs implantation. These findings establish a mutually antagonistic HOXA10-TWIST2 circuit as a key regulator of pEMT and epithelial remodelling during implantation. Graphical Abstract O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=144 SRC="FIGDIR/small/631632v2_ufig1.gif" ALT="Figure 1"> View larger version (46K): org.highwire.dtl.DTLVardef@1ea7b16org.highwire.dtl.DTLVardef@136f3c5org.highwire.dtl.DTLVardef@be47a8org.highwire.dtl.DTLVardef@5283b2_HPS_FORMAT_FIGEXP M_FIG C_FIG

developmental biology↗