regulatoorne mikrokeskkond, mis kontrollib tüviraku erinevaid olekuid
a microenvironment, within the specific anatomic location where stem cells are found, which interacts with stem cells to regulate cell fate. Cells starting to differentiate will leave the stem-cell niche.
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Diferentseerumisele suunduvad tüvirakud tavaliselt väljuvad tüviraku nišist.
