A species-specific double isotope dilution strategy for the accurate quantification of platinum–GG adducts in lung cells exposed to carboplatin

2017 ◽  
Vol 32 (7) ◽  
pp. 1320-1330 ◽  
Author(s):  
Susana Cuello-Nuñez ◽  
Raquel Larios ◽  
Christian Deitrich ◽  
Tamara Lekishvili ◽  
Volker Nischwitz ◽  
...  
Keyword(s):  
Measurement Uncertainty ◽  
Isotope Dilution ◽  
Human Lung ◽  
Lung Cells ◽  
Human Lung Cells ◽  
Species Specific ◽  
Double Isotope ◽  
Accurate Quantification

Measurement uncertainty of Pt–GG quantification in human lung cells by species-specific double IDMS.

scholarly journals RIG-I triggers a signaling-abortive anti-SARS-CoV-2 defense in human lung cells

2021 ◽  
Author(s):  
Taisho Yamada ◽  
Seiichi Sato ◽  
Yuki Sotoyama ◽  
Yasuko Orba ◽  
Hirofumi Sawa ◽  
...  
Keyword(s):  
Human Lung ◽  
Lung Cells ◽  
Human Lung Cells

scholarly journals Polyphosphate Reverses the Toxicity of the Quasi-Enzyme Bleomycin on Alveolar Endothelial Lung Cells In Vitro

Cancers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 750
Author(s):  
Werner E. G. Müller ◽  
Meik Neufurth ◽  
Shunfeng Wang ◽  
Heinz C. Schröder ◽  
Xiaohong Wang
Keyword(s):  
Dna Damage ◽  
Human Lung ◽  
Dna Integrity ◽  
Lung Cells ◽  
Antitumor Antibiotic ◽  
Cell Toxicity ◽  
Inorganic Polyphosphate ◽  
Human Lung Cells ◽  
Anti Cancer

The anti-cancer antitumor antibiotic bleomycin(s) (BLM) induces athyminic sites in DNA after its activation, a process that results in strand splitting. Here, using A549 human lung cells or BEAS-2B cells lunc cells, we show that the cell toxicity of BLM can be suppressed by addition of inorganic polyphosphate (polyP), a physiological polymer that accumulates and is released from platelets. BLM at a concentration of 20 µg ml−1 causes a decrease in cell viability (by ~70%), accompanied by an increased DNA damage and chromatin expansion (by amazingly 6-fold). Importantly, the BLM-caused effects on cell growth and DNA integrity are substantially suppressed by polyP. In parallel, the enlargement of the nuclei/chromatin in BLM-treated cells (diameter, 20–25 µm) is normalized to ~12 µm after co-incubation of the cells with BLM and polyP. A sequential application of the drugs (BLM for 3 days, followed by an exposure to polyP) does not cause this normalization. During co-incubation of BLM with polyP the gene for the BLM hydrolase is upregulated. It is concluded that by upregulating this enzyme polyP prevents the toxic side effects of BLM. These data might also contribute to an application of BLM in COVID-19 patients, since polyP inhibits binding of SARS-CoV-2 to cellular ACE2.

scholarly journals The antiandrogen enzalutamide downregulates TMPRSS2 and reduces cellular entry of SARS-CoV-2 in human lung cells

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
D. A. Leach ◽  
A. Mohr ◽  
E. S. Giotis ◽  
E. Cil ◽  
A. M. Isac ◽  
...  
Keyword(s):  
Androgen Receptor ◽  
Human Lung ◽  
Cell Types ◽  
Receptor Activation ◽  
Surface Proteins ◽  
Mouse Lung ◽  
Lung Cells ◽  
Human Lung Cells ◽  
Cellular Entry ◽  
Experimental Data Analysis

AbstractSARS-CoV-2 attacks various organs, most destructively the lung, and cellular entry requires two host cell surface proteins: ACE2 and TMPRSS2. Downregulation of one or both of these is thus a potential therapeutic approach for COVID-19. TMPRSS2 is a known target of the androgen receptor, a ligand-activated transcription factor; androgen receptor activation increases TMPRSS2 levels in various tissues, most notably prostate. We show here that treatment with the antiandrogen enzalutamide—a well-tolerated drug widely used in advanced prostate cancer—reduces TMPRSS2 levels in human lung cells and in mouse lung. Importantly, antiandrogens significantly reduced SARS-CoV-2 entry and infection in lung cells. In support of this experimental data, analysis of existing datasets shows striking co-expression of AR and TMPRSS2, including in specific lung cell types targeted by SARS-CoV-2. Together, the data presented provides strong evidence to support clinical trials to assess the efficacy of antiandrogens as a treatment option for COVID-19.

scholarly journals TiO2 nanoparticles generate superoxide and alter gene expression in human lung cells

RSC Advances ◽  
2019 ◽  
Vol 9 (43) ◽  
pp. 25039-25047 ◽  
Author(s):  
Dhanya T. Jayaram ◽  
Ashwath Kumar ◽  
Linda E. Kippner ◽  
Po-Yi Ho ◽  
Melissa L. Kemp ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fluorescence Microscopy ◽  
Tio2 Nanoparticles ◽  
Human Lung ◽  
Lung Cells ◽  
Rna Seq ◽  
Nanoparticle Exposure ◽  
Human Lung Cells

Human lung cells have a multi-generational response to TiO2 nanoparticle exposure determined by RNA-Seq and fluorescence microscopy.

Potential Markers of Cisplatin Treatment Response Unveiled by NMR Metabolomics of Human Lung Cells

2013 ◽  
Vol 10 (11) ◽  
pp. 4242-4251 ◽  
Author(s):  
I. F. Duarte ◽  
A. F. Ladeirinha ◽  
I. Lamego ◽  
A. M. Gil ◽  
L. Carvalho ◽  
...  
Keyword(s):  
Treatment Response ◽  
Human Lung ◽  
Lung Cells ◽  
Nmr Metabolomics ◽  
Human Lung Cells
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