Vitamin A is a key regulator for cell growth, cytokine production, and differentiation in normal B cells

In the present paper we demonstrate that retinol-retinol-binding protein and chylomicron remnant retinyl esters in concentrations normally found in human plasma inhibit growth of normal human B lymphocytes. Physiological concentrations of retinoic acid (about 30 nM) were less active than physiologic...

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