Trastuzumab, being a humanized monoclonal antibody, does not bind to rat cells, consequently we used B-10 instead, which was shown previously to have biologic activity similar to that of trastuzumab [ 16, 32].
To establish the general applicability of gene targeting in rat ES cells we decided to disrupt the hprt gene in cell lines from two rat strains.
Regarding the L-Glu transport in rat CPE cells, we have already reported that L-Glu is taken up into a conditionally-immortalized rat CPE cell line [ 45], but the contribution to the L-Glu transport from the CSF to the CPE cells has not yet been determined.
Based on the level of PEDF secreted by the transfected rat RPE cells, we estimated the number of cells necessary to achieve an optimal therapeutic effect when transplanted subretinally in a rat model of choroidal neovascularization.
In order to investigate the basic stable methylation pattern in rat somatic cells, we analyzed the methylation status of both loci by bisulfite sequencing.
In cultures of purified rat beta cells, we found that palmitate was cytotoxic irrespective of the glucose concentration but that the cells varied in their susceptibility, some of them surviving while others rapidly or progressively proceeded to necrosis or apoptosis [6], [7].
To verify whether autophagy occurs in rat AF cells, we used electronic microscopy to visualize autophagy vesicles in the cytoplasm.
To further confirm the developmental stage of these rat iNS cells, we examined their gene expression pattern by RT-PCR.
To confirm osteoblastic phenotype of isolated rat calvarial cells, we also examined cell responses to 24-hour treatment with the osteotropic hormone 1 α,25(OH)2D3 (Enzo Life Sciences, Plymouth Meeting, PA) after confluence on TCPS.
Using rat INS-1 832/13 cells, we found that palmitate caused cell apoptosis in a dosage-dependent manner (Fig. 1A).
