Telomerase is expressed at high levels in germ cells and can be expressed in human somatic cells, but its expression is transient or absent altogether in more differentiated cell types (Kim et al. 1994; Sharma et al. 1995).
Regarding the corresponding gene structure and the retina-restricted transcription, it is tempting to speculate that human Cx62 (GJA10) may be expressed in human horizontal cells similar to the expression of mouse connexin57 (Gja10) in mouse horizontal cells [ 30].
Interestingly, CCL18 was found to be expressed in human decidual and amnion tissues during pregnancy whereas expression was reduced after onset of labour [38].
An additional specificity of crocidolite-induced tumors was detectable by analyzing the mRNA expression of the tumor suppressor gene WT1, which is known to be expressed in human mesothelial and mesothelioma cells.
With immunohistochemical analysis of small sample sizes, Kaiso has been shown to be expressed in human tumors, such as breast cancers and prostate cancers, with varying expression in one report[ 8].
ERBB3 locus associated lncRNA (NONHSAG011351) was found to be expressed in human islets.
Somatostatin receptors, amongst other markers, are known to be expressed in human T lymphocytes that infiltrate tissues in autoimmune diseases.
Segueing into breast cancer, ROR1 has been shown to be expressed in human neoplastic breast cancer cells, while remaining absent within stromal cells (Zhang et al., 2012a).
Similarly to heart failure myocardium, EMMPRIN may be expressed in human atheroma and play a role in the extracellular matrix (ECM) remodeling and atherogenic cell differentiation.
So far more than 500 proteases/peptidases are known to be expressed in human cells [17], [18].
We investigated whether a similar nc-rRNA might be expressed in human cancer epithelial cells, and related to any genomic characteristics.
