In order to assess whether sulindac sulfide can activate the NF-κB pathway in the background of a variety of molecular defects, we selected three additional colorectal cancer cell lines, HCT116, SW480 and SW620.
In this case, D4Z4 hypomethylation may impair the Polycomb recruitment that leads to a reduction in H3K27 trimethylation, the same molecular defect that we observed in contracted 4q alleles.
While the splitting into two desmosomes has been observed in Dsc3 null mice (36), breaks at the plasma membrane in correspondence to desmosome has been observed in Dsp null mice (38), consistent with the molecular defect that we observed in AEC mice.
The only molecular defects that we could provide evidence for in PIASγ-depleted cells were the inability to remove centromeric catenations and a lack of Topoisomerase II localization to centromere regions (and mitotic chromosome cores in some cells).
To investigate the molecular defect of CUL3Δ403 459, we determined whether this form of CUL3 was able to build a CRL complex.
To determine the molecular defect underlying desmosome alterations, we measured desmosomal cadherins, plakins and armadillo proteins by immunoblotting analysis using total protein extracts from primary keratinocytes under growing conditions (low calcium) and under conditions that allow for the formation of desmosomes (high calcium), as well as from newborn epidermis.
SHM may be normal or defective, depending on the molecular defect in question.
The goal of this study was to determine the precise molecular defect in a patient with ADA-deficient SCID whom we previously have shown to have a total absence of ADA mRNA and a structural alteration of the ADA gene.
We have long thought that a key molecular defect should be consistently present at DNA, RNA, and protein levels.
In the present review we discuss recent evidence that the unifying molecular defect in TRAPS-associated mutant TNFR1 is receptor misfolding and retention in the endoplasmic reticulum (ER).
