ArticleInternational journal of nanomedicine2013
Effects of chemically modified nanostructured PLGA on functioning of lung and breast cancer cells.
Article in International journal of nanomedicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 10 citations in OpenAlex.
- PLGA-PVA-PEG Single Emulsion Method as a Candidate for Aminolevulinic Acid (5-ALA) Encapsulation: Laboratory Scaling Up and Stability Evaluation.Molecules (Basel, Switzerland) · 2022Article
- The Role of Microenvironmental Cues and Mechanical Loading Milieus in Breast Cancer Cell Progression and Metastasis.Frontiers in bioengineering and biotechnology · 2020Review
- Sulfated Chitosan Nanofibrous Scaffolds Seeded With Adipose Stem Cells Promote Ischemic Wound Healing in a Proangiogenic Strategy.Cell transplantationArticle
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe aim of this study was to investigate the effects of poly-lactic-co-glycolic acid (PLGA) nanotopographies with alginate or chitosan protein preadsorption on the functioning of healthy and cancerous lung and breast cells, including adhesion, proliferation, apoptosis, and release of vascular endothelial growth factor (VEGF), which promotes tumor angiogenesis and secretion.
methodsWe used a well established cast-mold technique to create nanoscale surface features on PLGA. Some of the nanomodified PLGA films were then exposed to alginate and chitosan. Surface roughness and the presence of protein was confirmed by atomic force microscopy. Surface energy was quantified by contact angle measurement.
resultsNanostructured PLGA surfaces with 23 nm features decreased synthesis of VEGF in both lung and breast cancer cells compared with conventional PLGA. Preadsorbing alginate further decreased cancer cell function, with nanostructured PLGA preadsorbed with alginate achieving the greatest decrease in synthesis of VEGF in both lung and breast cancer cells. In contrast, compared with nonmodified smooth PLGA, healthy cell functions were either not altered (ie, breast) or were enhanced (ie, lung) by use of nanostructured features and alginate or chitosan protein preadsorption.
conclusionUsing this technique, we developed surface nanometric roughness and modification of surface chemistry that could selectively decrease breast and lung cancer cell functioning without the need for chemotherapeutics. This technique requires further study in a wide range of anticancer and regenerative medicine applications.
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