Microbial Interactions Within Human Microbiomes and Their Influence on Immunity, Metabolism, and Health

Abstract

The microbiome of humans is made up of many kinds of microorganisms (bacteria, viruses, fungi, and archaea) found in different places within us. These communities help sustain our healthy physiological state and are involved in immune system regulation, metabolic activities, and all aspects of health. Developments in understanding how the microbes interact and how microorganisms interact with their human hosts include metagenomics, next-generation sequencing, and systems biology. Gut bacteria, in particular, help with producing nutrients, synthesizing vitamins, creating short-chain fatty acids, maintaining the intestinal barrier, and helping to regulate immune function. Changes in the balance of chemicals within gut bacteria, referred to as dysbiosis, have been linked to many diseases, including obesity, diabetes, inflammatory bowel disease, allergic reactions, rheumatoid arthritis, and neurological disorders. New research shows that the interactions among microbes are able to influence signalling pathways, inflammation, and metabolic control through a variety of molecular mechanisms. Furthermore, microbiota-based therapies such as probiotics, prebiotics, synbiotics, dietary changes, and faecal microbiota transplantation are increasingly seen as effective methods for both prevention and treatment of disease. Personalized medicine approaches that involve profiling the microbiome may allow individualised treatments and better outcomes in patients.

Keywords: Human microbiome, gut microbiota, immunity, metabolism, dysbiosis, personalized medicine, probiotics.