Results 41 to 50 of about 3,926 (200)

Escherichia coli producing colibactin triggers premature and transmissible senescence in mammalian cells. [PDF]

open access: yesPLoS ONE, 2013
Cellular senescence is an irreversible state of proliferation arrest evoked by a myriad of stresses including oncogene activation, telomere shortening/dysfunction and genotoxic insults. It has been associated with tumor activation, immune suppression and
Thomas Secher   +3 more
doaj   +1 more source

Detection of DNA damage by alkaline comet assay in mouse colonic mucosa

open access: yesSTAR Protocols, 2021
Summary: We recently characterized the association between DNA damage and immunoresponse in vivo in colonic mucosa of mice infected with a Salmonella Typhimurium strain expressing a genotoxin, known as typhoid toxin.
Elisa Boutet-Robinet   +4 more
doaj   +1 more source

Characterization of macrophage infiltration and polarization by double fluorescence immunostaining in mouse colonic mucosa

open access: yesSTAR Protocols, 2021
Summary: We recently characterized the association between DNA damage and immunoresponse in vivo in colonic mucosa of mice infected with a Salmonella Typhimurium strain expressing a genotoxin, known as typhoid toxin.
María López Chiloeches   +3 more
doaj   +1 more source

Bacterial Toxin Modulation of the Eukaryotic Cell Cycle: Are all Cytolethal Distending Toxins Created Equally?

open access: yesFrontiers in Cellular and Infection Microbiology, 2012
The cytolethal distending toxins (CDTs) comprise a family of intracellular-acting bacterial protein toxins whose actions upon eukaryotic cells result in several consequences, the most characteristic of which is the induction of G2/M cell cycle arrest ...
Amandeep eGargi   +2 more
doaj   +1 more source

Overexpression of Mdb1 alters genotoxin sensitivity.

open access: yes, 2014
Overexpression of wild-type but not phospho-binding mutants of Mdb1 results in genotoxin sensitivity in wild type and set9Δ, but not htaAQ strain background. Cells were pregrown in a thiamine-free medium for 20 h before being spotted on YES-based plates.
Hai-Tao Wang (561009)   +4 more
core   +1 more source

Mechanisms of assembly and cellular interactions for the bacterial genotoxin CDT. [PDF]

open access: yesPLoS Pathogens, 2005
Many bacterial pathogens that cause different illnesses employ the cytolethal distending toxin (CDT) to induce host cell DNA damage, leading to cell cycle arrest or apoptosis. CDT is a tripartite holotoxin that consists of a DNase I family nuclease (CdtB)
Dragana Nesic, C Erec Stebbins
doaj   +2 more sources

The microbial genotoxin colibactin exacerbates mismatch repair mutations in colorectal tumors

open access: yesNeoplasia: An International Journal for Oncology Research, 2023
Certain Enterobacteriaceae strains contain a 54-kb biosynthetic gene cluster referred to as “pks” encoding the biosynthesis of a secondary metabolite, colibactin. Colibactin-producing E.
Michael W. Dougherty   +11 more
doaj   +1 more source

Transplacental transfer of genotoxins and transplacental carcinogenesis. [PDF]

open access: yesEnvironmental Health Perspectives, 1993
A number of chemical compounds induce cancer in the offspring of animals treated with these compounds. The fetus is sensitive to the toxic and teratogenic effects of chemicals in the early embryonic stages, whereas it is sensitive to carcinogenic effects during late fetal stages.
openaire   +3 more sources

Food-Associated Lactobacillus plantarum and Yeasts Inhibit the Genotoxic Effect of 4-Nitroquinoline-1-Oxide

open access: yesFrontiers in Microbiology, 2017
Lactic acid bacteria and yeasts, representing the prevailing microbiota associated with different foods generally consumed without any cooking, were identified and characterized in vitro for some functional properties, such as acid-bile tolerance and ...
Roberta Prete   +5 more
doaj   +1 more source

Genotoxic exposure during juvenile growth of mammary gland depletes stem cell activity and inhibits Wnt signaling. [PDF]

open access: yesPLoS ONE, 2012
Various types of somatic stem cell have been tested for their response to genotoxic exposure, since these cells are likely to be important to regeneration, aging and cancer.
Kristine S Klos   +2 more
doaj   +1 more source

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