New tool for cell-free therapy based on artificial membrane vesicles

Scientists at Kazan Federal University's Institute of Fundamental Medicine and Biology, led by Professor Albert Rizvanov, have shown that artificial membrane vesicles generated by Cytochalasin B treatment of human cells retain angiogenic activity.

Vesicles are small packages of material released from and act to deliver cargo and messages to adjacent and distant cells. Vesicles are known to be important regulators of normal physiology and have also been implicated in disease, notably cancer. Extracellular vesicles exhibit the biological of the cell from which they originate. For example, extracellular vesicles of stem cells are able to promote angiogenesis and regeneration. For this reason, extracellular vesicles represent a promising tool for cell-free therapy to deliver .

However, the yield of naturally occurring vesicles is too low for practical purposes. Recently, several studies demonstrated the ability to generate a large number of membrane vesicles from cultured cells treated with a drug, Cytochalasin B. This cost-effective approach permits the generation of large quantities of extracellular vesicles. However, it remained unknown whether these Cytochalasin B-induced micro-vesicle (CIMVs) retained characteristic biological properties of their parental cells.

To address this, an international team of investigators, led from Kazan Federal University, Russia by Professor Albert Rizvanov, with international collaborators, characterized the biological activity of vesicles.

The study was published in Oncotarget. The lead author, Dr. Marina Gomzikova, and colleagues described the morphology, molecular composition, fusion capacity and of Cytochalasin B-induced (CIMVs). This data suggests that the biophysical, molecular and size distribution properties of CIMVs are similar to natural vesicles. Furthermore, they demonstrated that CIMVs retain the biological properties of the donor cells, as they can stimulate angiogenesis in vitro and in vivo.

CIMVs can now be produced in large quantities and scaled to an industrial production level; potential therapeutic applications to deliver biologically active molecules of CIMVs are now possible.


Explore further

Insulin release is controlled by the amount of Epac2A at the secretory vesicles

More information: Cytochalasin B-induced membrane vesicles convey angiogenic activity of parental cells. Oncotarget. doi.org/10.18632/oncotarget.19723
Journal information: Oncotarget

Citation: New tool for cell-free therapy based on artificial membrane vesicles (2017, August 22) retrieved 15 July 2019 from https://medicalxpress.com/news/2017-08-tool-cell-free-therapy-based-artificial.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more