Gut microbiome restoration via engraftment of commensal bacteria (None commonly used for the therapeutic process; for bacteria, common genera like *Lactobacillus* or *Bacteroides* are abbreviated, but no universal abbreviation applies to the entire concept)

Restoration of the gut microbiome via engraftment of commensal bacteria involves reintroducing beneficial microorganisms into a dysbiotic (imbalanced) gut environment to reestablish ecological balance, immune regulation, and metabolic function. This is typically accomplished through interventions such as fecal microbiota transplantation (FMT) or administration of specific probiotic strains. The therapeutic aim is to replenish depleted microbiota after disturbance by antibiotics, illness, or diet and thereby restore host functions including vitamin synthesis, protection against pathogens, metabolic homeostasis, and modulation of immune responses. Success depends on factors such as microbial diversity, compatibility with host diet, and avoidance of pathogenic or opportunistic species. Restoration of the microbiome is increasingly recognized as necessary for the efficacy of therapies in cancer, infection, and metabolic disease, but comes with risks such as infection, immune reactions, and resistance transfer. The provided target is a process and therapeutic strategy, not a molecular entity like a receptor or enzyme. For purposes of molecular classification, *commensal bacteria* are living organisms, not molecular targets. If you are seeking a specific commensal species as the target, each would need to be named specifically (e.g., *Bacteroides thetaiotaomicron*, *Akkermansia muciniphila*) and categorized accordingly.

Other names

Microbiota restorationFecal microbiota transplantation (FMT)Probiotic engraftmentGut microbial reconstitution

Colonization and restoration of ecological balance, which reinstates metabolic, immunomodulatory, and barrier functions; Enhancement or modulation of therapeutic drug efficacy (e.g., immunotherapy depends on specific bacterial species); Reduction of pathogenic bacteria via competitive exclusion and production of antimicrobial substances