Amit Kulkarni, MBBS, University of Minnesota, Minneapolis, MN, discusses the crucial role of gut microbiome diversity in clinical outcomes. Findings from various preclinical and clinical studies indicate that antibiotic exposure during immunotherapy may adversely affect patient outcomes, including progression-free survival (PFS) and overall survival (OS). Data from a neoadjuvant study in patients with breast cancer demonstrate that those with prior antibiotic exposure had lower rates of pathological complete response (CR), highlighting the effects of antibiotics beyond immunotherapy. While the precise mechanisms remain unclear, that the gut microbiome may modulate immune responses through tertiary and secondary lymphoid structures within the tumour microenvironment (TME). This interview took place at the 2024 World Conference on Lung Cancer (WCLC) in San Diego, CA.
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