Compared with young‑donor macrophages, aged rat macrophages often exhibit reduced phagocytic capacity and distinct cytokine secretion patterns. For example, they may display elevated basal levels of inflammatory mediators yet respond less vigorously to acute stimulation. These differences are thought to contribute to impaired pathogen clearance, poor vaccine responses, and chronic inflammation in older animals. Our aged macrophages are selected and characterized to reflect these typical aging‑associated phenotypes, allowing direct comparison with young macrophage populations.
Yes, macrophages from aged donors can be somewhat more sensitive to stress. It is especially important to follow the thawing protocol carefully, avoid harsh centrifugation, and minimize prolonged exposure to DMSO. Allowing the cells adequate recovery time in complete medium before starting functional assays helps them regain optimal morphology and adherence.
Absolutely. Many researchers use our aged macrophages side‑by‑side with young rat macrophages from the same supplier to dissect age‑related changes in innate immunity.
For Research Use Only. Do Not Use in Food Manufacturing or Medical Procedures (Diagnostics or Therapeutics). Do Not Use in Humans.