Microbiome, Probiotics & Gut Nutrition

From birth, microbial exposure shapes immune cell development, especially in the gut-associated lymphoid tissue (GALT). The microbiota educates the immune system to distinguish between harmful and harmless stimuli, promoting tolerance and balanced responses. Early disruptions- due to C-section birth, formula feeding, or antibiotics- can increase risks for allergies, asthma, IBD, and autoimmune disorders. This session focuses on the critical window of microbial colonization and its long-lasting impact on immune regulation, discussing therapeutic strategies like probiotics and maternal microbiota transfer to restore optimal microbial programming in early life.

The birth canal is a child's first major microbial exposure, profoundly influencing initial gut microbiota composition. Vaginal delivery introduces beneficial Lactobacillus and Bacteroides, while C-section births often result in skin- or hospital-derived microbiota, linked to increased risk of allergies, obesity, and immune diseases. This session examines microbial succession in infants, long-term health consequences, and interventions like vaginal swabbing or tailored probiotic supplementation that may mitigate the microbial deficit introduced by cesarean birth.

Housing trillions of microbes, the gut microbiota is essential for digestion, vitamin synthesis, immune training, and inflammation control. It produces short-chain fatty acids (SCFAs), neurotransmitters like GABA and serotonin, and modulates host gene expression. Imbalances are implicated in diseases ranging from depression to metabolic syndrome. This session highlights gut microbiota functions, interactions with diet, stress, and medications, and emerging therapies that target the gut for systemic health benefits.

Microbiota can influence carcinogenesis via chronic inflammation, DNA damage, or altering immune responses. Certain bacteria like Fusobacterium nucleatum have been linked to colorectal cancer, while others enhance the efficacy of immunotherapy. This session explores the microbiome’s dual role in cancer—as a risk factor and therapeutic enhancer—and presents research on microbiome biomarkers, microbial drug metabolism, and potential interventions for cancer prevention and treatment optimization.

Obesity, type 2 diabetes, and fatty liver disease are now viewed through the lens of microbial imbalance. Specific gut microbes can influence energy extraction, lipogenesis, insulin sensitivity, and inflammation. This session discusses how diet, antibiotics, prebiotics, probiotics, and fecal microbiota transplantation (FMT) may serve as therapeutic strategies for metabolic syndrome, with emphasis on personalized microbial interventions based on individual microbiota profiles.

Diet modulates gut microbiota, which in turn produces metabolites like butyrate and secondary bile acids that influence host epigenetics. These epigenetic modifications can silence tumor suppressor genes or activate oncogenes, contributing to colorectal cancer risk. This session highlights how dietary fiber, fat, and polyphenols shape microbial outputs and epigenomic regulation, with implications for dietary prevention and personalized nutrition in cancer.

The oral cavity hosts over 700 microbial species, forming biofilms on teeth and gums. When balance shifts due to poor hygiene, diet, or genetics, pathogenic microbes like Streptococcus mutans and Porphyromonas gingivalis thrive, leading to caries and periodontitis. These conditions are linked not only to tooth loss but also to systemic issues like cardiovascular disease and diabetes. This session delves into microbial succession in the oral environment, immune evasion by pathogens, and emerging interventions like oral probiotics, vaccines, and antimicrobial peptides to restore oral microbial homeostasis.

Our skin is an ecosystem populated by bacteria, fungi, and viruses that protect against invaders, regulate pH, and support immune function. Disruptions can lead to skin disorders such as eczema, acne, and psoriasis. Key players include Cutibacterium acnes, Staphylococcus epidermidis, and Malassezia spp. This session explores how skin microbiota vary by site, age, and hygiene, and how skin health can be enhanced through microbiome-preserving practices and therapeutic modulation.

Probiotic skincare claims to rebalance the skin microbiome and reduce inflammation. But is there real science behind the trend? This session critically evaluates clinical evidence for topical probiotics, live biotherapeutics, and postbiotic extracts. Discussions will address regulatory challenges, delivery systems for viable microbes, and future directions in dermatocosmetics. The hype meets evidence here—what works, what doesn’t, and what’s next?

Rhizobacteria, endophytes, and mycorrhizal fungi form symbiotic relationships with plants, promoting growth by enhancing nutrient uptake, nitrogen fixation, and pathogen resistance. These microbes can stimulate root development, induce systemic resistance, and help plants adapt to stress. This session highlights field applications, the role of beneficial microbial consortia, and their potential in reducing synthetic fertilizer and pesticide usage.

Plants release root exudates that act as chemical signals, shaping the microbial communities around them. Understanding these signals enables targeted manipulation of the phytomicrobiome to enhance plant health. This session focuses on engineering microbiomes through breeding, genetic modification, or application of signal mimics—ushering in a new era of precision agriculture.

Chemical crosstalk between plants and microbes governs mutualism, nutrient sharing, and defense. Key molecules like flavonoids, strigolactones, and quorum sensing signals orchestrate microbial recruitment and activity. This session examines how signaling networks are decoded and harnessed to foster beneficial interactions and suppress pathogens.

Biostimulants enhance plant vigor, yield, and stress resilience without being fertilizers or pesticides. They include microbial inoculants, seaweed extracts, and humic substances. This session explores the mechanisms of biostimulants—from promoting root architecture to influencing gene expression—and their growing role in sustainable farming practices.

AMF penetrate plant roots and extend hyphal networks into the soil, increasing uptake of phosphorus, water, and micronutrients. In return, plants supply carbon. This mutualism boosts plant resistance to drought and pathogens. This session highlights AMF diversity, mechanisms, and strategies to integrate AMF into commercial cropping systems.

Combining plant-strengthening agents with microbial biocontrol can reduce crop losses and improve soil health. Biocontrol agents suppress pests and diseases using competition, antibiosis, and induced resistance. This session covers the synergistic use of microbial consortia, challenges in formulation, and future directions in organic and integrated agriculture.

Identifying bacteria with disease-suppressing traits is critical for effective biocontrol. Key features include rhizosphere colonization, secondary metabolite production, and compatibility with plant hosts. This session presents strategies for strain selection, genomic screening, and field validation of promising biocontrol agents.

Animals evolved in a microbial world, and symbiosis with microbes is essential—not incidental—to their survival. From digestion in ruminants to light production in squid, microbial partnerships shape development, behavior, and evolution. This session reframes biology through the lens of the holobiont—host plus microbiome—highlighting how modern life sciences must integrate microbial ecology to fully understand animal biology.

Once an obscure niche, microbiome research has exploded across health, agriculture, and ecology. From gut health to climate change, microbes are now recognized as powerful drivers of life systems. This session provides a panoramic view of microbiome science, celebrating breakthroughs in sequencing, systems biology, and computational tools that have brought the invisible world to center stage.

Microbiota composition can be shaped through diet, probiotics, prebiotics, synbiotics, antibiotics, and fecal transplants. Understanding how these interventions alter microbial communities opens new therapeutic avenues. This session discusses the principles and pitfalls of microbiota modulation in both humans and plants, with emphasis on resilience, safety, and personalized approaches.