Role of Atopobiaceae in Immunometabolic Modulation During HPV and Cervical Cancer
Overview
This study identifies the Atopobiaceae family, including Fannyhessea species, as key modulators of the cervicovaginal microenvironment in HPV infection and cervical cancer development. Atopobiaceae presence correlates with proinflammatory cytokines, immune checkpoint proteins, cancer biomarkers, and prooncogenic metabolites, suggesting their role in promoting HPV persistence and cancer progression.
Background
Human papillomavirus (HPV) infection is highly prevalent globally, with certain high-risk genotypes leading to cervical cancer (CC). The cervicovaginal microbiome, particularly non-Lactobacillus dominant bacteria such as Atopobiaceae, may influence HPV persistence and progression to cancer. Fannyhessea vaginae and related species have been implicated in bacterial vaginosis and gynecologic infections, potentially contributing to HPV-related carcinogenesis. Understanding the immunometabolic impact of Atopobiaceae could reveal novel targets for preventing HPV-mediated cervical cancer.
Data Highlights
Group
Sample Size (n)
Atopobiaceae Prevalence
Associated HPV Genotypes
HPV-negative
20
Low
None
HPV-positive without dysplasia
31
Moderate
High-risk HPV 31, 52
Cervical dysplasia
38
High
High-risk HPV
Invasive cervical carcinoma
9
Highest
High-risk HPV
Key Findings
Atopobiaceae family members, including Fannyhessea vaginae, F. massiliense, and F. species type 2, are more prevalent in Hispanic women and those with higher gravidity and parity.
F. species type 2 and F. vaginae are specifically associated with high-risk HPV genotypes 31 and 52 infections.
Atopobiaceae presence negatively correlates with Lactobacillus abundance and positively correlates with other anaerobic bacteria such as Sneathia, Dialister, and Prevotella.
Profiles rich in Atopobiaceae show elevated proinflammatory cytokines (IL-1α, IL-1β, IL-12, TNF-α), immune checkpoint proteins (PD-L1, LAG3), and cancer biomarkers (CEA, MIF, TRAIL).
Prooncogenic metabolites like 4-hydroxybutyrate and sphingosine are increased in women colonized by Atopobiaceae, indicating lipid metabolism and oxidative stress involvement.
Atopobiaceae may contribute to immune evasion and inflammatory microenvironment alterations that promote HPV persistence and cervical carcinogenesis.
Clinical Implications
Monitoring Atopobiaceae abundance and species composition could serve as a biomarker for HPV persistence risk and cervical cancer progression, especially in high-risk populations. Targeting Atopobiaceae through microbiome modulation strategies may offer a novel preventive approach to reduce HPV-mediated cervical cancer development. Clinicians should consider the interplay between vaginal microbiota and HPV status when assessing patient risk and management.
Conclusion
Atopobiaceae bacteria play a significant role in shaping the immunometabolic cervicovaginal environment that favors HPV persistence and cervical cancer progression. These findings highlight the potential for microbiome-based interventions to improve cervical cancer prevention.
References
Łaniewski et al. 2023 -- Role of Atopobiaceae Family in Modulating Immunometabolic Factors During HPV Infection and Cervical Cancer Development
