Lupus: The microbiome angle.

Area of Science:

• Microbiology
• Immunology
• Gastroenterology

Background:

• The human body hosts over 10^14 microorganisms, collectively known as microbiota, residing in areas like the gut.
• This complex ecosystem, including bacteria, fungi, and viruses, engages in a dynamic relationship with the host, influencing biological functions.
• The microbiota's genetic material, the microbiome, interacts with the host immune system, impacting inflammation, immune tolerance, and autoimmune responses.

Purpose of the Study:

• To review recent advancements in understanding the gut bacterial microbiota's role in inflammatory and immunological processes.
• To explore the association between gut microbiota and autoimmune diseases, with a focus on systemic lupus erythematosus.
• To highlight the need for identifying beneficial, sensitive, pathogenic, and therapeutic microbes within the gut ecosystem.

Main Methods:

• Literature review of recent studies on gut microbiota and its impact on host health and disease.
• Analysis of the relationship between microbial composition, immune responses, and autoimmune conditions.
• Focus on molecular mechanisms linking microbiota to inflammation and systemic lupus erythematosus.

Main Results:

• Dysbiosis, an alteration in the microbial balance, is linked to disease exacerbation and progression.
• Specific bacterial species' abundance is associated with triggering autoimmune diseases.
• The precise molecular mechanisms underlying microbiota's influence on host health and disease remain largely undefined.

Conclusions:

• The gut microbiota significantly influences immunological and metabolic functions, impacting host well-being.
• Dysbiosis may contribute to, aggravate, or result from disease states, requiring further investigation.
• Understanding the gut microbiota's role is crucial for developing therapeutic strategies for autoimmune diseases like lupus.