PUBLICATION

Amniotic epithelial Cell microvesicles uptake inhibits PBMCs and Jurkat cells activation by inducing mitochondria-dependent apoptosis

Authors
Cerveró-Varona, A., Prencipe, G., Peserico, A., Canciello, A., House, A.H., Santos, H.A., Perugini, M., Sulcanese, L., Takano, C., Miki, T., Iannetta, A., Russo, V., Mattioli, M., Barboni, B.
ID
ZDB-PUB-250219-6
Date
2025
Source
iScience   28: 111830111830 (Journal)
Registered Authors
Keywords
Cell biology, Functional aspects of cell biology, Immunology
MeSH Terms
none
PubMed
39967871 Full text @ iScience
Abstract
Amniotic epithelial cells (AECs) exhibit significant immunomodulatory and pro-regenerative properties, largely due to their intrinsic paracrine functions that are currently harnessed through the collection of their secretomes. While there is increasing evidence of the role of bioactive components freely secreted or carried by exosomes, the bioactive cargo of AEC microvesicles (MVs) and their crosstalk with the immune cells remains to be fully explored. We showed that under intrinsic conditions or in response to LPS, AEC-derived MV carries components such as lipid-mediated signaling molecules, ER, and mitochondria. They foster the intra/interspecific mitochondrial transfer into immune cells (PBMCs and Jurkat cells) in vitro and in vivo on the zebrafish larvae model of injury. The internalization of MV cargoes through macropinocytosis induces hyperpolarization of PBMC mitochondrial membranes and triggers MV-mediated apoptosis. This powerful immune suppressive mechanism triggered by AEC-MV cargo delivery paves the way for controlled and targeted cell-free therapeutic approaches.
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Sequence Targeting Reagents
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