Nonthermal radiofrequency radiation promotes hematopoietic stem and progenitor cells function by regulating Ca2+ efflux
This animal and in vitro study evaluated non-thermal 2856 MHz radiofrequency radiation (RFR) effects on mouse hematopoietic stem and progenitor cells (HSPCs). The authors report improved colony formation and transplantation-based reconstitution capacity, and faster recovery from ionizing-radiation-induced hematopoietic injury with RFR preconditioning. They propose a mechanism involving increased membrane fluidity, enhanced PMCA-mediated Ca2+ efflux, reduced intracellular Ca2+, and metabolic quiescence, with PMCA inhibition abolishing the reported benefits.
Key points
- The study used CFU assays in vitro and mouse transplantation assays in vivo to assess HSPC function after RFR exposure.
- Non-thermal 2856 MHz RFR was reported to enhance HSPC colony formation and reconstitution capacity.
- The authors report no compromise of multilineage differentiation homeostasis under the studied conditions.
- RFR preconditioning was reported to accelerate hematopoietic recovery after ionizing radiation in mice.
- Mechanistic assays suggested increased membrane fluidity and potentiation of PMCA activity leading to increased Ca2+ efflux.
- Reduced intracellular Ca2+ and a lower metabolic state were reported to be associated with improved HSPC function.
- Pharmacological inhibition of PMCA reportedly abrogated the functional and metabolic changes attributed to RFR.
Referenced studies & papers
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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