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Prospective Investigation of Nanoplastic Accumulation in Healthy Subjects, Autoimmune Diseases, Hematological Malignancies, Lung Cancer, and Murine Models

Microplastics 2024 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Roser Salvia, Manel Cañaveras, Laura G. Rico, Ana Drozdowskyj, Michael D. Ward, Rebeca Jurado-Tapiador, Laia Gómez-Muñoz, Marta Vives‐Pi, Eva Martínez-Cáceres, Jordi Pétriz

Summary

A prospective investigation measured nanoplastic accumulation in blood samples from healthy subjects, patients with autoimmune diseases, and hematological cancer patients. The study found higher nanoplastic levels in patients with autoimmune and cancer diagnoses, raising questions about whether nanoplastic accumulation may contribute to or reflect these disease states.

Nanoplastics (NPs) and microplastics (MPs) are an emerging threat to global health. They negatively impact ecosystems and many physiological processes, causing alterations in xenobiotic metabolism, nutrient uptake, energy metabolism, or cytotoxicity. In humans, we are beginning to analyze these plastics for the mechanisms by which they enter the organism, accumulate, and diffuse as well as for their pathogenic potential. NP accumulation has been demonstrated in human tissues, such as blood or placenta, while in others it remains largely unstudied. In this work, we detected NP accumulation in bronchoalveolar lavage fluids (BALFs), cerebrospinal fluids (CSFs), lymph nodes (LNs), urine, pleural fluids (PFs), ascitic fluids (AFs), and peripheral blood (PB) by combining fluorescence and nanocytometry techniques. NP analysis was compared with two strains of mice, and the results support that inhalation is the main route of NP accumulation.

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