Existing transgenics that use insulin gene regulatory regions typically allow for beta cell gene inactivation; however, they often also lead to expression in brain regions, mostly the hypothalamus for the Ins2 promoter, leading to phenotypes that are complicated by the non-specific site of expression of the recombinase.
Higher frequency pulses lead to expression of the α subunit and a hypogonadal state.
For an impulsion to lead to expression there must be conflict, a place where inner impulse meets the environment.
Oxidative stress-induced accumulation of genetic errors would lead to expression and co-expression of growth and apoptotic factors in susceptible tissues and create an 'immune tsunami' that further skew and alter bioenergetics, metabolic, hormonal and neuronal activities in susceptible tissues toward multistep carcinogenesis [18, 22, 62 65].
Mutations in the lamin A/C (LMNA) gene that cause Hutchinson-Gilford progeria syndrome (HGPS) lead to expression of a protein called progerin with 50 amino acids deleted from the tail of prelamin A. In cells from patients with HGPS, both the amount and distribution of heterochromatin are altered.
In the case of STE11, this can also lead to expression of genes associated with meiosis or hyphal growth in S. cerevisiae (STE12 [59].
It will be interesting to further dissect how this genomic region can lead to expression in a diverse set of PNs.
Mutations in the PcG genes can lead to expression of the homeotic loci in the wrong body segments resulting in duplications or deletions of body parts.
We only detected procyclin in PCFs and PAD1 was exclusively detected in stumpy cells, suggesting that knockout of RabX1 or RabX2 did not lead to expression of either of these differentiation markers (Figure 10B).
Out of 192 microRNA targets, only 189 assays lead to expression information since three assays (miR-16, -124a and -130b) had technical issues and were not included in the analysis.
The progressive restriction of the differentiation potential from pluripotent embryonic stem cells (ESC) to different populations of multipotent adult stem cells (ASC) depends on the orchestrated action of key transcription factors and changes in the profile of epigenetic modifications that ultimately lead to expression of different sets of genes.
