Well I can't really say, but if the Cells are clearly immune type cells, then logically increasing Zinc intake would be good.
Zinc is abundent in most foods, though most abundent in Oysters, though I'm not saying you should eat Oysters, but good old Chicken is a great source of Zinc, as are many thoer things as stated.
You could also increase things like Nuts, Mushrooms, Whole-grains, Legumes and Veggie types too, as they contain Copper. Copper helps with the way Iron is utilised and stored for one thing and becasue Iron is the main comopnent in Erythrocytes, (Red Blood Cells), doing this could promote more Oxygenation of cells and tissues, by helping to boost the potential for Iron to be used. Vitamin C and Capsicum also boost Iron, but Caffiene blocks it.
So things like Tomatos, Potato, Broccoli and Citrus would work for C and Pink Guava has the highest amount of C, (165mg's), with Broccoli around 130-140mg's. Also Pink Guava has Lycopene also found in Tomatos as another thing, which can help prevent free radical activity and in part converts to Vitamin A, as do all Carotenoids.
Too much Copper, Calcium and Magnesium can interfere with Iron, but you should be fine I'd think on that score.
The body may therefore respond better, in terms of increased immune responses, with increased Oxygenation potential, via increased Iron uptake and associated Erythrocyte formation.
Plus things like Nuts, Legumes and Whole-grains are good, which being Copper sources, gives you a double whammy on Sn and Cu.
Selenium breaks down into Selenoproteins, which can be used to help with cellular health and possibly development.
Some of these things might be of consideration