# Pharmacokinetics and Pharmacodynamics of Perfluorooctane Sulfonate (PFOS) and Its Role in the Development and Progression of Prostate, Ovarian and Breast Cancers

## TL;DR

This paper reviews how PFOS, a persistent chemical, may contribute to prostate, breast, and ovarian cancers by disrupting hormones and causing cellular damage.

## Contribution

The paper synthesizes recent findings on PFOS's toxic mechanisms and cancer links, emphasizing the need for stricter regulations.

## Key findings

- PFOS disrupts lipid metabolism and cellular signaling, leading to oxidative stress and mitochondrial dysfunction.
- Elevated PFOS levels are associated with increased cancer risk, especially in exposed populations.
- PFOS contributes to cancer progression through hormonal interference and chronic inflammation.

## Abstract

Perfluorooctane sulfonate (PFOS) is a synthetic chemical found in products like firefighting foams, stain-resistant fabrics, and food packaging. Due to its extreme stability, PFOS persists in the environment and accumulates in living organisms, including humans. PFOS can enter the ecosystems and human bodies, where it has been linked to hormone disruption, DNA damage, and immune and metabolic disturbances. Most concerning is PFOS’s potential to cause cancers of the prostate, breast, and ovary. This review highlights the need for urgent global measures to limit PFOS exposure and safeguard public health.

Environmental pollution, driven by industrialization, urbanization, and agricultural practices, has intensified global ecological degradation. Among the most concerning pollutants is PFOS, a synthetic compound known for its chemical stability, environmental persistence, and bioaccumulative potential. Widely utilised in industrial and consumer products, PFOS infiltrates ecosystems and food chains, posing substantial risks to human and animal health. Upon exposure, PFOS disrupts lipid metabolism, damages cellular membranes, and alters signaling pathways through partial metabolism by cytochrome P450 enzymes. Accumulating evidence links PFOS to oxidative stress, mitochondrial dysfunction, endocrine disruption, neurotoxicity, and immunotoxicity. Critically, PFOS contributes to the development and progression of prostate, breast, and ovarian cancers via mechanisms such as hormonal interference, chronic inflammation, and epigenetic modifications. Epidemiological studies further associate elevated PFOS serum levels with increased cancer risk, particularly in occupationally and environmentally exposed populations. This review brings together the latest knowledge on PFOS emissions, mechanistic toxicity, and cancer-causing potential, highlighting the urgent need for focused research and improved regulatory measures to safeguard public health.