Purified Hematopoietic Stem and Progenitor Cells
Purified HSPCs are blood-forming adult stem cells selected and enriched for CD34+ markers to ensure they rebuild the entire immune and blood system; in Tregzi, they are the key component that reconstitutes the patient's blood-forming system.
Purified hematopoietic stem and progenitor cells (HSPCs) are blood-forming adult stem cells selected from a patient's bone marrow or blood, specifically enriched for CD34+ markers to ensure they can rebuild the entire immune and blood system. In the Tregzi therapy, these purified cells are the foundational component that reconstitutes the patient's blood-forming system while minimizing serious toxicities compared to traditional transplants.
What this means in real life
A leukemia patient receives chemotherapy that destroys their bone marrow; doctors then infuse purified blood-forming cells harvested earlier to rebuild their immune system and restore blood production.
What it isn’t
Not the same as whole bone marrow or unprocessed blood—those contain many mature, non-regenerative cells. Purification specifically isolates only the immature, self-renewing cells capable of long-term blood production.
Commonly misused online
Often conflated with 'stem cell therapy' broadly; social media sometimes implies purified cells are a cure-all, when clinical use is actually limited to blood disorders and certain cancers.