0
Article Tier 2 Nanoplastics Sign in to save

Top-down generated micro- and nanoplastics reduce macrophage viability without eliciting a pro-inflammatory response

Microplastics and Nanoplastics 2025 4 citations

AI summary Read the abstract

This study investigated whether top-down mechanically generated micro- and nanoplastics from physically shredded plastic affect macrophage viability and inflammation. The particles reduced macrophage viability in a dose-dependent manner but did not elicit a classical pro-inflammatory cytokine response.

Body Systems

The online version contains supplementary material available at 10.1186/s43591-025-00138-5.

More Papers Like This

Article Tier 2

Origin matters – investigating the immunomodulatory effects of primary and secondary micro- and nanoplastics on human macrophages.

AI summary Read the abstract

This study compared the immunomodulatory effects of primary microplastics with secondary microplastics derived from environmental plastic fragmentation, testing responses in macrophages. Results showed that the origin of microplastic particles influences the immune response they trigger.

Article Tier 2

The Immunotoxic Effects of Environmentally Relevant Micro- and Nanoplastics

AI summary Read the abstract

Researchers characterized the immunotoxic effects of over 20 types of micro- and nanoplastic particles on macrophages and dendritic cells, finding that physicochemical properties such as size, shape, polymer type, and surface oxidation strongly influence immune cell responses.

Article Tier 2

Origin matters – investigating the immunomodulatory effects of primary and secondary micro- and nanoplastics on human macrophages.

AI summary Read the abstract

This study compared immune responses triggered by primary microplastics versus secondary microplastics derived from environmental weathering, using macrophage models. Secondary microplastics, which are more environmentally realistic, produced distinct immunomodulatory effects compared to primary particles.

Article Tier 2

Cytotoxicity and pro-inflammatory effect of polystyrene nano-plastic and micro-plastic on RAW264.7 cells.

AI summary Read the abstract

Researchers found that polystyrene nano-plastics (80 nm) induced apoptosis and pro-inflammatory cytokine release in mouse macrophage RAW264.7 cells at lower concentrations than micro-plastics (3 μm), with nano-plastics also enhancing phagocytic activity and activating NF-kB signaling pathways more potently than their larger counterparts.

Article Tier 2

Influence of the polymer type on the impact of microplastic particles

AI summary Read the abstract

Researchers compared the cellular effects of polystyrene, polyethylene, PVC, and PLA microparticles on murine macrophages and epithelial cells, assessing uptake and cytotoxicity. All polymer types were ingested by macrophages, but the degree of cytotoxicity varied by polymer composition.

Research digests by email

When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.

Email me about

Share this paper