Assessment of a Structurally Modified Alternanthera Mosaic Plant Virus as a Delivery System for Sarcoma Cells

Area of Science:

• Biotechnology
• Virology
• Oncology

Background:

• Plant virus particles and virus-like particles (VLP) are versatile platforms for medical biotechnology.
• Their surfaces can be modified for targeted drug delivery and therapeutic applications.

Purpose of the Study:

• To evaluate the binding and penetration capabilities of Alternanthera mosaic virus (AltMV) and Tobacco mosaic virus (TMV) structurally modified particles (SP) on Ewing sarcoma cells.
• To compare the efficacy of different plant virus-derived SP for cancer therapy.

Main Methods:

• Utilized SP derived from AltMV virions (AltMV SP_V) and TMV virions, as well as AltMV VLPs.
• Assessed adsorption and penetration of these SP on patient-derived and established Ewing sarcoma cell lines, alongside normal cells.

Main Results:

• AltMV SP_V and TMV SP exhibited greater adsorption than AltMV VLP-derived SP.
• AltMV SP_V showed enhanced adsorption on patient-derived sarcoma cells, while TMV SP were more effective on established sarcoma cells.
• AltMV SP_V demonstrated superior penetration in established Ewing sarcoma cells compared to TMV SP.

Conclusions:

• Structurally modified plant virus particles, particularly from AltMV and TMV, are effective in targeting and interacting with Ewing sarcoma cells.
• These plant virus-derived particles hold significant promise as platforms for developing novel anticancer agents and drug delivery systems.