J Cancer Res Clin Oncol
June 2015
Purpose: Nuclear apoptosis-inducing factor 1 (NAIF1) could induce apoptosis in gastric cancer cells. Previously, we have reported that the expression of NAIF1 protein is down-regulated in gastric cancer tissues compared with the adjacent normal tissues. However, the role of NAIF1 in gastric cancer cells is not fully understood.
View Article and Find Full Text PDFThe microchimerism is a status of the microcell or DNA of an individual in another one with genetic differences. Taking an overall view about the discovery and research of the microchimerism, it was found that although the study of the microchimerism emphasizes the formation, origin, distribution, type, relationship to disease and several other aspects, the objects of the study are always the microchimerism that obtained naturally. As it is known to all, the microchimerism can also be produced in some clinical treatment, such as in the transplant and transfusion, but compared with the microchimerism gained naturally, obviously, the study for the iatrogenic microchimerism formed in the treatment is not elaborate enough.
View Article and Find Full Text PDFThe ability of the pathogenic fungus Candida albicans to switch cellular morphologies is important for infection and virulence. Recent studies have revealed that C. albicans yeast cells can switch to filamentous growth under genotoxic stress in a manner dependent on the DNA replication/damage checkpoint.
View Article and Find Full Text PDFSci China C Life Sci
June 2009
DNA polymerase delta is encoded by the POLD1 gene, the transcription of which is strictly cell cycle-dependent. However, the means by which POLD1 transcription is regulated by the cell cycle mechanism is currently unknown. We discovered a novel element in the POLD1 promoter known as a CDE(cell cycle-dependent element)/CHR(cell cycle gene homology region) element.
View Article and Find Full Text PDFSci China C Life Sci
April 2008
Candida albicans is the most prominent opportunistic fungal pathogen in humans. Multiple factors are associated with the virulence of C. albicans, including morphogenesis, cell wall organization and growth rate.
View Article and Find Full Text PDFBoth G1 and mitotic cyclins have been implicated in regulating Candida albicans filamentous growth. We have investigated the functions of Grr1 whose orthologue in Saccharomyces cerevisiae is known to mediate ubiquitin-dependent degradation of the G1 cyclins Cln1 and Cln2. Here, we report that deleting C.
View Article and Find Full Text PDFZhonghua Yi Xue Za Zhi
March 2006
Objective: Antisense CDK4 was transfected into human colorectal cancer cells HT29 to examine the effect of it on the growth and proliferation of HT29 cells.
Methods: Antisense CDK4 transfected the HT29 cells with lipofectamine. The transfected effects were verified by the Northern blot, Western blot, morphological method, flow cell measure, etc.
Using overlapping and mutant oligonucleotides as probes, gel mobility assays and competition experiments identified a sequence from -47 to -32 bp upstream of the LIM2 CAP site, which a lens protein complex bound with high affinity which appeared to bind only to the "sense" strand of the double-stranded DNA molecule. This sequence consisted of a string of four guanine residues followed by seven other nucleotides (AACCTAA) and followed by another four guanines, i.e.
View Article and Find Full Text PDFTo study the coordination inhibition of the proliferation of breast cancer cell line MCF-7 by enhancing expression of p53,p21 and decreasing expression of c-myc, as well as the relationship among these genes when they express in the cells, eukaryotic expression plasmids of sense p53,p21 and antisense c-myc were constructed first, different concentrations of three plasmids were determined and the combinations were designed according to factorial design. Cells were transfected by the combination plasimids, then the inhibition rate of proliferation of the transfected cells were tested. The results were analyzed using the methods of statistics including Jin's Q-test, Least significant difference (LSD), cluster analysis.
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