Cellular replacement and regeneration via engraftment and paracrine effects of administered autologous immune, stem, or progenitor cells tracked by superparamagnetic iron oxide nanoparticles

This target is not a receptor, enzyme, or protein but describes a cell-based therapeutic approach in which autologous immune, stem, or progenitor cells are administered to patients to achieve tissue repair and regeneration. The beneficial effects are mediated through direct engraftment and the release of trophic factors (paracrine effects), which can stimulate local cells, inhibit apoptosis, suppress immune reactions, increase angiogenesis, and/or enhance endogenous repair processes. To allow non-invasive, long-term tracking of the fate of transplanted cells, superparamagnetic iron oxide nanoparticles (SPIONs) are internalized into cells prior to administration, enabling their visualization and tracking by magnetic resonance imaging (MRI); these techniques do not seem to impair cell function in the short term, but the long-term effects of SPIONs are still under investigation. This strategy is most commonly applied in disorders requiring tissue regeneration, such as certain hematologic malignancies, autoimmune diseases, and organ-specific injuries, but is not itself a canonical molecular target. This entry is not a conventional molecular target, but a description of a therapeutic strategy/process. If you are attempting to catalogue druggable targets, this should be flagged as non-standard. Note: No standard protein, receptor, gene, or similar entity is referenced. The description refers to a therapeutic cell-based process employing MRI-traceable labeling, not a singular molecule or receptor.

Other names

Stem cell therapy with SPION MRI trackingCell-based regenerative therapyAutologous stem/progenitor cell transplantation with SPIONs

This strategy involves cell engraftment for tissue replacement or repair, paracrine secretion of cytokines and growth factors by transplanted cells to stimulate host tissue regeneration or modulate local immunity, and MRI tracking of administered cells using internalized superparamagnetic iron oxide nanoparticles for non-invasive, longitudinal imaging.