A new connection between the gut microbiota and prostate inflammation in aging men

“Creating a properly functioning intestinal microenvironment can significantly reduce the overall inflammation, which also affects the prostate.”

BUFFALO, NY- November 8, 2023 – A new research paper was published in Aging (listed by MEDLINE/PubMed as "Aging (Albany NY)" and "Aging-US" by Web of Science) Volume 15, Issue 20, entitled, “Tissue immunoexpression of IL-6 and IL-18 in aging men with BPH and MetS and their relationship with lipid parameters and gut microbiota-derived short chain fatty acids.”

Recent studies indicate that inflammation is one of the causes of the development of benign prostatic hyperplasia (BPH). Inflammation may result from past infections, metabolic disorders, but also from the state of functioning of the intestinal microbiota. 

In this new study, researchers Weronika Ratajczak, Maria Laszczyńska, Aleksandra Rył, Barbara Dołęgowska, Olimpia Sipak, Ewa Stachowska, Marcin Słojewski, and Anna Lubkowska from Poland’s Pomeranian Medical University and State University of Applied Sciences aimed to assess whether the diagnostic lipid parameters for metabolic syndrome and short-chain fatty acids (SCFAs) are related to the immunoexpression of interleukins in prostate tissue with benign hyperplasia. The study involved 103 men with BPH, who were divided into two groups depending on the presence of MetS. 

“We analysed tissue immunoexpression of two proinflammatory interleukins: IL-6, which is known to be involved in the development of BPH, and IL-18, which has not been analysed so far.”

The results of their study indicated that men with BPH + MetS in the stroma of the prostate have a significantly higher overall percentage of IL-6+ cells compared to men without MetS (p = 0.034). The analysis of IL-18 immunoexpression in prostate tissue indicated that in men with BPH + MetS, the glandular part of the prostate had a significantly higher percentage of cells with strong IL-18 expression (p = 0.040). They also noticed a relationship between tissue expression of IL-6 and IL-18 and lipid parameters (TG and HDL). 

“We conclude that lipid disorders occurring in men with BPH increase inflammation in the prostate gland. Moreover, it has also been demonstrated for the first time that, indirectly, through SCFAs, the gut microbiota can act to prevent or create an inflammatory microenvironment in the prostate gland.”
 

Read the full study: DOI: https://doi.org/10.18632/aging.205091 

Corresponding Author: Anna Lubkowska

Corresponding Email: anna.lubkowska@pum.edu.pl 

Keywords: benign prostatic hyperplasia (BPH), metabolic syndrome (MetS), lipids, interleukin 6 (IL-6), interleukin 18 (IL-18), short-chain fatty acids

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About Aging:

Launched in 2009, Aging publishes papers of general interest and biological significance in all fields of aging research and age-related diseases, including cancer—and now, with a special focus on COVID-19 vulnerability as an age-dependent syndrome. Topics in Aging go beyond traditional gerontology, including, but not limited to, cellular and molecular biology, human age-related diseases, pathology in model organisms, signal transduction pathways (e.g., p53, sirtuins, and PI-3K/AKT/mTOR, among others), and approaches to modulating these signaling pathways.

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