Prominosomes - a Particular Class of Extracellular Vesicles Containing Prominin-1/CD133?

Overview

Journal J Nanobiotechnology

Publisher Biomed Central

Date 2025 Jan 29

PMID 39881297

Authors

Jana Karbanova

Kristina Thamm

Christine A Fargeas

Ilker A Deniz

Aurelio Lorico

Denis Corbeil

Affiliations

Soon will be listed here.

Abstract

Extracellular membrane vesicles (EVs) offer promising values in various medical fields, e.g., as biomarkers in liquid biopsies or as native (or bioengineered) biological nanocarriers in tissue engineering, regenerative medicine and cancer therapy. Based on their cellular origin EVs can vary considerably in composition and diameter. Cell biological studies on mammalian prominin-1, a cholesterol-binding membrane glycoprotein, have helped to reveal new donor membranes as sources of EVs. For instance, small EVs can originate from microvilli and primary cilia, while large EVs might be produced by transient structures such as retracting cellular extremities of cancer cells during the mitotic rounding process, and the midbody at the end of cytokinesis. Here, we will highlight the various subcellular origins of prominin-1 EVs, also called prominosomes, and the potential mechanism(s) regulating their formation. We will further discuss the molecular and cellular characteristics of prominin-1, notably those that have a direct effect on the release of prominin-1 EVs, a process that might be directly implicated in donor cell reprogramming of stem and cancer stem cells. Prominin-1 EVs also mediate intercellular communication during embryonic development and adult homeostasis in healthy individuals, while disseminating biological information during diseases.

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