Tumor-derived exosomes in cancer metastasis risk diagnosis and metastasis therapy.

Exosomes are endosomes secreted from the membrane by exocytosis as multivesicular bodies and are generally defined by their spherical, unilamellar morphology, size and the expression of specific biomarkers used for diagnosis or therapy targets. Recent research has reported a higher relationship between exosome enrichment and tumor disease development. In this review, we discuss exosome intercellular communication and functions in the pathology of disease, especially on the cancer metastasis related with exosome. We introduce how exosomes from cancer and stem cancer cells target different organs through transporting molecular proteins of exosome inclusions to improve or inhibit cancer metastasis as well as highlight exosome therapy strategies for tumor pathology involving microRNAs.