Cancer research has made significant progress in recent
years,
and extracellular vesicles (EVs) based cancer investigation reveals
several facts about cancer. Exosomes are a subpopulation of EVs. In
the present decade, exosomes is mostly highlighted for cancer theranostic
research. Tumor cell derived exosomes (TEXs) promote cancer but there
are multiple sources of exosomes that can be used as cancer therapeutic
agents (plant exosomes, stem cell-derived exosomes, modified or synthetic
exosomes). Stem cells based regenerative medicine faces numerous challenges,
such as promote tumor development, cellular reprogramming etc., and
therefore addressing these complications becomes essential. Stem cell-derived
exosomes serves as an answer to these problems and offers a better
solution. Global research indicates that stem cell-derived exosomes
also play a dual role in the cellular system by either inhibiting
or promoting cancer. Modified exosomes which are genetically engineered
exosomes or surface modified exosomes to increase the
efficacy of the therapeutic properties can also be considered to target
the above concerns. However, the difficulties associated with the
exosomes include variations in exosomes heterogenity, isolation protocols,
large scale production, etc., and these have to be managed effectively.
In this review, we explore exosomes biogenesis, multiple stem cell-derived
exosome sources, drug delivery, modified stem cells exosomes, clinical
trial of stem cells exosomes, and the related challenges in this domain
and future orientation. This article may encourage researchers to
explore stem cell-derived exosomes and develop an effective and affordable
cancer therapeutic solution.