Nuclear localization of PD-L1: artifact or reality?

ConclusionWe propose that well-specified and rigorously followed protocols should be applied to immunocytochemical diagnostic techniques, especially to those related to individualized diagnosis and treatment.
Source: Cellular Oncology - Category: Cancer & Oncology Source Type: research

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Abstract Cisplatin (Cis-DDP) is one of the most widely used anti-cancer drugs. It is applicable to many types of cancer, including lung, bladder, and breast cancer. However, its use is now limited because of drug resistance. p90 ribosomal S6 kinase (p90RSK) is one of the downstream effectors in the extracellular signalregulated protein kinases 1 and 2 (ERK1/2) pathway and high expression of p90RSK is observed in human breast cancer tissues. Therefore, we investigated the role of p90RSK in the Cis-DDP resistance-related signaling pathway and epithelialmesenchymal transition (EMT) in breast cancer cells. First, we d...
Source: BMB Reports - Category: Biochemistry Authors: Tags: BMB Rep Source Type: research
Abstract Earlier studies from our laboratory have demonstrated that Oxyresveratrol (OXY), a hydroxyl-substituted stilbene, exhibits potent inhibition of human melanoma cell proliferation. The present study defines a cytotoxic effect of OXY on the highly chemo-resistant, triple-negative human breast cancer cell line MDA-MB-231. OXY-mediated cell death resulted in accumulation of cells at the sub-G1 phase of the cell cycle, induced chromatin condensation, DNA fragmentation, phosphatidylserine externalization and PARP cleavage, indicative of apoptosis. Interestingly, morphology and cell viability studies with the pan...
Source: Biochemical Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Biochem Pharmacol Source Type: research
Abstract The rhizome of ginger (Zingiber officinale) a common culinary agent is also known for its medicinal activity. We have earlier reported that pure 6-shogaol, an important component of ginger induces paraptosis in triple negative breast cancer (MDA-MB-231) and non small cell lung (A549) cancer cells. However, the chemopreventive potential of the whole ginger extract in food remains to be elucidated. Here, we demonstrate for the first time that ginger extract (GE) triggers similar anticancer activity/paraptosis against the same cell lines but through different molecular mechanisms. Q-TOF LC-MS analysis of the...
Source: Nutrition and Cancer - Category: Cancer & Oncology Authors: Tags: Nutr Cancer Source Type: research
In this study, we hypothesized that moderately and chronically reducing ACh could attenuate the deleterious effects of aging on NMJs and skeletal muscles. To test this hypothesis, we analyzed NMJs and muscle fibers from heterozygous transgenic mice with reduced expression of the vesicular ACh transporter (VAChT), VKDHet mice, which present with approximately 30% less synaptic ACh compared to control mice. Because ACh is constitutively decreased in VKDHet, we first analyzed developing NMJs and muscle fibers. We found no obvious morphological or molecular differences between NMJs and muscle fibers of VKDHet and contro...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Naked mole-rats live as much as nine times longer than similarly sized rodent species. A short summary of what is known of their biochemistry is that they exhibit many of the molecular signs of aging found in other mammals, such as oxidative damage, presence of senescent cells, and so forth, but few to none of the consequences found in other mammals. Naked mole rats stay fit and healthy and physiologically youthful right up until very late life. The near relative species of blind mole-rat has many of the same characteristics, although it is less well studied than naked mole-rats at the present time. The accumulation...
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs
ConclusionsThis analysis of risk for cancer among Ewing sarcoma patients and their relatives indicates evidence for some increased cancer predisposition in this population which can be used to individualize consideration of potential treatment of patients and screening of patients and relatives.
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: ORIGINAL RESEARCH Source Type: research
ConclusionsFUT11 promotes invasion and migration of ovarian cancer through regulation of the TGF- β 1-induced EMT process. FUT11 affects the response to TGF-β 1 by regulation of the expression level of R-Smads and Co-Smad, as well as their translocation from cytoplasm to nucleus.Legal entity responsible for the studyBeijing Obstetrics and Gynecology Hospital, Capital Medical University.FundingThe National Natural Science Foundation of China (81502353&81672838), Beijing Municipal Science&Technology Commission (No. Z181100001718193), and Beijing Obstetrics and Gynecology Hospital, Capital Medical University...
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
We proved for the first time that SIRT4 enhances sensitivity of breast cancer cells to tamoxifen. Western blotting showed that p ‐STAT3 levels were reduced after SIRT4 transfection and that transcription and translation of MYC and CCND1 were blocked. Immunofluorescence revealed that STAT3 activation and nuclear translocation were suppressed when SIRT4 was overexpressed. AbstractRecent advances in endocrine therapy have improved the prospects for estrogen receptor ‐positive breast cancer. Tamoxifen is an effective drug for patients with estrogen receptor‐positive breast cancer, but the development of resistance is com...
Source: Cancer Medicine - Category: Cancer & Oncology Authors: Tags: ORIGINAL RESEARCH Source Type: research
The acknowledgment that pollutants might influence the epigenome raises serious concerns regarding their long-term impact on the development of chronic diseases. The herbicide glyphosate has been scrutinized for an impact on cancer incidence, but reports demonstrate the difficulty of linking estimates of exposure and response analysis. An approach to better apprehend a potential risk impact for cancer is to follow a synergistic approach, as cancer rarely occurs in response to one risk factor. The known influence of glyphosate on estrogen-regulated pathway makes it a logical target of investigation in breast cancer research...
Source: Frontiers in Genetics - Category: Genetics & Stem Cells Source Type: research
AbstractA balanced robertsonian translocation (rob) results from fusion of 2 acrocentric chromosomes. Carriers are phenotypically normal and are often diagnosed because of recurrent miscarriages, infertility, or aneuploid offspring. Mortality and site-specific cancer risks in carriers have not been prospectively investigated. We followed 1,987 carriers diagnosed in Great Britain for deaths and cancer risk, over an average of 24.1 years. Standardized mortality and incidence ratios were calculated comparing the number of observed events against population rates. Overall mortality was higher for carriers diagnosed before age ...
Source: American Journal of Epidemiology - Category: Epidemiology Source Type: research
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