Results 41 to 50 of about 6,895,334 (230)

Mutagenicity test of feed pentacyclic triterpenoid extract

Siliao yanjiu, 2023
The purpose of the experiment is to evaluate whether pentacyclic triterpeneds extracts as a feed additive has potential mutagenicity through Ames test, micronucleus test and sperm deformity test.
ZHANG Yuan, XIAO Yi-rong, CHEN Yi-meng, CHEN Xin, ZHANG Yu-mei   +4 more
doaj  

Aged ZnO Nanoparticles Promote Breast Cancer Lung Metastasis by Remodeling the Pulmonary Microenvironment Through the CXCL10/Wnt/β‐Catenin Axis

Advanced Science, EarlyView.
In summary, pulmonary exposure to ZnO NPs, particularly aged NPs, promotes breast cancer metastasis by remodelling the lung tumour microenvironment. Aged ZnO NPs enrich M2‐macrophages, MDSCs and activated CAFs to form an immunosuppressive metastatic niche. CXCL10 from these cells drives metastasis via Wnt/β‐catenin activation.
Yong Zhu, Siyu Wang, Tong Lin, Jingyi Zhang, Jingya Yang, Dixiang Kang, Wenting Zhao, Na Yu, Meimei Wang   +8 more
wiley   +1 more source

A new in vitro micronucleus test in living cells associating biological tracers and high-content imaging

, 2016
A new in vitro micronucleus test in living cells associating biological tracers and high-content imaging. 47.
Mirey, Gladys, Steen, D.M., Graillot, Vanessa   +2 more
core   +4 more sources

Tubocapsenolide A Overcomes Oxaliplatin Resistance in Colorectal Cancer by Targeting PLK1 to Impair CEP55–ESCRT‐Associated Vesicular Damage Clearance

Advanced Science, EarlyView.
Oxaliplatin‐resistant colorectal cancer cells utilize a previously unappreciated PLK1‐CEP55‐ESCRT‐driven vesicular extrusion mechanism to clear L‐OHP‐induced cellular damage. The natural withanolide Tubocapsenolide A directly targets and inhibits PLK1 to disrupt this specific damage‐clearance machinery. This blockade induces severe nucleolar stress and
Yueying Yang, Jing Liang, Lu Wang, Hongyan Zhang, Zhiruo Zhang, Yang Liu, Rui Zhu, Wen Xu, Shaohua Xu, Dejuan Sun, Ke Xiang, Yali Wang, Zhimin Fan, Zheng Wang, Hua Li, Lixia Chen   +15 more
wiley   +1 more source

A Double Fluorescent Staining Method Increases the Sensitivity of the Cytokinesis-Block Micronucleus Assay

Methods and Protocols
The micronucleus test is one of the most popular genotoxicity assays. In order to avoid underestimation of micronuclei frequencies by counting non-replicating cells, the cytokinesis-blocked micronucleus test has been developed.
Ion Udroiu
doaj   +1 more source

BRCA1 Mutation‐Recognizing Tetrahedral Framework Nucleic Acid Nanoplatform Enables Coordinated PARP/WEE1 Inhibition and STING‐Associated Antitumor Immunity in Ovarian Cancer

Advanced Science, EarlyView.
BRCA1 mutation‐responsive FBOA‐tFNA selectively recognizes mutant transcripts and coordinates reduction‐responsive intracellular delivery of olaparib and adavosertib, amplifying DNA damage and weakening G2/M checkpoint protection. These effects are accompanied by STING‐associated immune activation and stronger antitumor immunity, while sequential anti ...
Chenyi Wang, Mengying Yao, Jinhui Xie, Dingjie Wang, Yashi Shi, Xiaodan Mao, Chunhua Lu, Pengming Sun   +7 more
wiley   +1 more source

CDK4/6 inhibitor-induced bone marrow micronuclei might be caused by cell cycle arrest during erythropoiesis

Genes and Environment
Background A micronucleus test is generally used to evaluate the genotoxic potential of chemicals. Exaggerated erythropoiesis, as occurs following bleeding, may induce an unexpected increase in micronucleus frequency.
Yuki Okada, Satsuki Chikura, Takafumi Kimoto, Takeshi Iijima   +3 more
doaj   +1 more source

MICRONUCLEUS TEST OF MOFEZOLAC (N-22)

The Journal of Toxicological Sciences, 1990
A micronucleus test using BDF1 male mice was conducted in order to evaluate the in vivo mutagenicity of mofezolac (N-22). N-22 was orally administered at doses of 75, 150, 300 and 600 mg/kg, with a sampling time of 24 hr. The frequency of polychromatic erythrocytes with micronuclei was 0.07-0.08% in the groups treated with N-22 and did not differ ...
OHUCHIDA, Akinobu, FURUKAWA, Akemi
openaire   +3 more sources

Mutagenicity testing with transgenic mice. Pt.I: Comparison with the mouse bone marrow micronucleus test

, 2022
Chapter 3, 14 S.As part of a larger literature study on transgenic animals in mutagenicity testing, test results from the transgenic mutagenicity assays (lacI model; commercially available as the Big Blue(R) mouse, and the lacZ model; commercially ...
Mangelsdorf, I., Wahnschaffe, U., Kielhorn, J., Bitsch, A.   +3 more
core   +1 more source

Engineering Biology Beyond Single Genes: Advances and Challenges in Multiplex Genome Editing

Animal Research and One Health, EarlyView.
Multiplex genome editing is transforming genome engineering from single‐gene perturbation to network‐level control, yet its broader application remains limited by challenges in gRNA array engineering, delivery technologies, and safety management. Emerging AI‐driven approaches are accelerating guide RNA design and CRISPR effector optimization for ...
Linli Wang, Yongbin Liu, Hongbing Han
wiley   +1 more source