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Exosomes: Tunable Nano Vehicles for Macromolecular Delivery of Transferrin and Lactoferrin to Specific Intracellular Compartment.

DIR@IMTECH: CSIR-Institute of Microbial Technology

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Title Exosomes: Tunable Nano Vehicles for Macromolecular Delivery of Transferrin and Lactoferrin to Specific Intracellular Compartment.
 
Creator Malhotra, Himanshu
Sheokand, Navdeep
Kumar, Santosh
Chauhan, Anoop S
Kumar, Manoj
Jakhar, Priyanka
Boradia, Vishant M
Raje, Chaaya I
Raje, Manoj
 
Subject QR Microbiology
 
Description Due to their abundant ubiquitous presence, rapid uptake and increased requirement in neoplastic tissue, the delivery of the iron carrier macromolecules transferrin (Tf) and lactoferrin (Lf) into mammalian cells is the subject of intense interest for delivery of drugs and other target molecules into cells. Utilizing exosomes obtained from cells of diverse origin we confirmed the presence of the multifunctional protein glyceraldehyde-3-phosphate dehydrogenase (GAPDH) which has recently been characterized as a Tf and Lf receptor. Using a combination of biochemical, biophysical and imaging based methodologies, we demonstrate that GAPDH present in exosomes captures Tf and Lf and subsequently effectively delivers these proteins into mammalian cells. Exosome vesicles prepared had a size of 51.2 ± 23.7 nm. They were found to be stable in suspension with a zeta potential (ζ-potential) of -28.16 ± 1.15 mV. Loading of Tf/Lf did not significantly affect ζ-potential of the exosomes. The carrier protein loaded exosomes were able to enhance the delivery of Tf/Lf by 2 to 3 fold in a diverse panel of cell types. Ninety percent of the internalized cargo via this route was found to be specifically delivered into late endosome and lysosomes. We also found exosomes to be tunable nano vehicles for cargo delivery by varying the amount of GAPDH associated with exosome. The current study opens a new avenue of research for efficient delivery of these vital iron carriers into cells employing exosomes as a nano delivery vehicle.
 
Publisher Ingenta/American Scientific Publishers
 
Date 2016-05
 
Type Article
PeerReviewed
 
Relation http://www.ingentaconnect.com/content/asp/jbn/2016/00000012/00000005/art00020
http://crdd.osdd.net/open/1913/
 
Identifier Malhotra, Himanshu and Sheokand, Navdeep and Kumar, Santosh and Chauhan, Anoop S and Kumar, Manoj and Jakhar, Priyanka and Boradia, Vishant M and Raje, Chaaya I and Raje, Manoj (2016) Exosomes: Tunable Nano Vehicles for Macromolecular Delivery of Transferrin and Lactoferrin to Specific Intracellular Compartment. Journal of biomedical nanotechnology, 12 (5). pp. 1101-14. ISSN 1550-7033