alexa Nanoconjugation modulates the trafficking and mechanism of antibody induced receptor endocytosis.
Materials Science

Materials Science

Journal of Nanomedicine & Biotherapeutic Discovery

Author(s): Bhattacharyya S, Bhattacharya R, Curley S, McNiven MA, Mukherjee P

Abstract Share this page

Abstract Treatment with monoclonal antibody (mAbs) is a viable therapeutic option in cancer. Recently, these mAbs such as cetuximab, herceptin, etc., have been used as targeting agents to selectively deliver chemotherapeutics to cancerous cells. However, mechanisms of nanoparticles-mAbs interactions with the target cells and its effect on intracellular trafficking and mechanism are currently unknown. In this paper, we demonstrate that the distinct patterning and dynamics of anti-EGFR (epidermal growth factor receptor) antibody cetuximab (C225)- induced EGFR internalization in pancreatic cancer cells with variable receptor expression is altered upon nanoconjugation. Nanoconjugation uniformly enhanced C225-induced EGFR endocytosis in PANC-1, AsPC-1, and MiaPaca-2 cells, influenced its compartmentalization and regulated the involvement of dynamin-2 in the endocytic processes. Receptor endocytosis and its intracellular trafficking were monitored by confocal microscopy and transmission electron microscopy. The role of dynamin-2 in EGFR endocytosis was determined after overexpressing either wild-type dynamin-2 or mutant dynamin-2 in pancreatic cancer cells followed by tracking the receptor-antibody complex internalization by confocal microscopy. Significantly, these findings demonstrate that the nanoconjugation cannot be construed as an innocuous reaction involved in attaching the targeting agent to the nanoparticle, instead it may distinctly alter the cellular processes at the molecular level, at least antibody induced receptor endocytosis. This information is critical for successful design of a nanoparticle-based targeted drug delivery system for future clinical translation.
This article was published in Proc Natl Acad Sci U S A and referenced in Journal of Nanomedicine & Biotherapeutic Discovery

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • World Congress on Regulations of Nanotechnology
    July 31-August 01, 2017 Chicago, Illinois, USA
  • 19th Nano Congress for Next Generation
    August 31-September 01, 2017 Brussels,Belgium
  • International conference on Industrial Nanotechnology
    September 18-19, 2017 Jacksonville, Florida, USA
  • 15th World Medical Nanotechnology Congress & Expo
    October 18-19, 2017 Osaka, Japan
  • 22ndInternational Conference and Expo on Nanoscience and Molecular Nanotechnology
    Nov 13-14, 2017 Vienna, Austria
Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version