In contrast, rab21 and dip1 are induced in 2 h and 30 min, respectively and maintained their expression up to 12 h, while ubi is known to be constitutively expressed kept unchanged during the experiment (Additional file 1: Figure S2a).
Our data indicate that several markers of spinal cord and cortical neurospheres maintained their expression at all stages and times in culture examined.
Prdm8 and 13 showed specific expression in spinal cord at E9.5 when neurogenesis starts (Fig. 2A, C), and maintained their expression in this tissue at E10.5 (Fig. 2D, F).
The Handicap Principle proposes that the honesty of social signals is ensured by the cost paid to produce or maintain their expression, thus avoiding "cheating" and reinforcing the evolutionary stability of the signaling system [3], [4].
In a later phase, once LIDs have been established, hyper-activation of PKA/DARPP-32 may become sufficient to maintain their expression independently of ERK, most likely by short-term regulation of neuronal activity through, for instance, regulation of the state of phosphorylation of GluR1 and other ion channels.
In contrast, when retinal progenitor cells transit to differentiated cone cell fates, they maintain their expression of both proteins.
Therefore, increasing the accumulation of ZIP proteins and maintain their expression pattern may provide an alternative way to enhance Zn or Fe contents.
Positive or negative feedback loops in autoregulation maintain their expression in the development of floral organs or embryos after the initial induction.
SLE pre-naïve B cells continued to maintain their expression levels of CD86 and HLA-DR for up to day 2 of CD40 stimulation.
Because there was no stress during the treatment with Si alone, OsLsi1 and OsLsi2 maintained their expression at 5 and 10-DAT.
