Neuman, S.D., Bashirullah, A. (2018). Reconsidering the Passive Diffusion Model of Steroid Hormone Cellular Entry.  Dev. Cell 47(3): 261--262.

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Note

Steroid hormones have long been thought to enter target cells via passive diffusion through the plasma membrane. Now, reporting in Developmental Cell, Okamoto et al. (2018) demonstrate that, at least for Drosophila, steroid hormones require a protein transporter for cellular entry.