Sentence examples for by lacking expression of from inspiring English sources

The HER2 amplified group was defined by lacking expression of the estrogen and progesterone receptors and strong circular membranous staining for HER2 in more than 10% of tumor cells (DAKO score 3+).

In contrast, RI-and beta-glycan mRNA was expressed by all cell lines, including those lacking expression of these proteins.

Since the myoma discs by themselves lacked expression of CAV1, the notable expression of CAV1 in the cultures could be linked to HSC-3 delivery of CAV1 concomitant with the development of hypoxic conditions.

By contrast, conventional NK cells that lack expression of B220 and MHCII have not been identified as antigen presenting cells in the mouse [17].

Our immunohistochemical analysis also confirmed that MET-depleted tumors had a reduced proliferation potential (as evidenced by the lack of Ki67 expression) and lacked expression of the marker desmin.

We chose to use PS1-KI animals as control group as these mice overexpress mutant Presenilin-1 gene (M146V substitution) but, by lacking the expression of mutant APP and h-tau, do not show Aβ or tau-dependent pathology nor AD-related cognitive deficits [30].

These neurons can be unambiguously identified by the presence of both LTP and Dilp2, by their position, by lack of expression of dilp2-GAL4, and by expression of impL2-GAL4.

In summary, the lack of EP in Atp6v0a4 mutants is not caused by structural defects of the stria vascularis or by lack of expression of the K+ channels Kcnj10 and Kcnq1.

It is caused by lack of expression of the UBE3A gene on the maternal chromosome 15q11-q13.

PWS is caused by lack of expression of imprinted genes in a ∼4 mb region of chromosome band 15q11.2.

Recently it was shown that CD27 down-regulation can be blocked by lack of expression of its ligand, CD70 [22] which requires both antigen and cytokines, including IL-2 for expression.