Results 31 to 40 of about 516,288 (261)

Uniform transgene activation in Tet-On systems depends on sustained rtTA expression

iScience, 2023
Summary: Application of the tetracycline-inducible gene expression system (Tet-On) in human induced pluripotent stem cells (hiPSCs) has become a fundamental transgenic tool owing to its regulatable gene expression.
Jun Otomo, Knut Woltjen, Hidetoshi Sakurai   +2 more
doaj   +1 more source

Wake respirometry allows breath-by-breath assessment of ventilation and CO2 production in unrestrained animals

iScience, 2022
Summary: Quantifying stress and energetic responses in animals are major challenges, as existing methods lack temporal resolution and elevate animal stress.
Kayleigh A.R. Rose, Rory P. Wilson, Claudia Ramenda, Hermina Robotka, Martin Wikelski, Emily L.C. Shepard   +5 more
doaj   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

FEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

HIV-1 env gene mutations outside the targeting probe affects IPDA efficiency

iScience
Summary: The intact proviral DNA assay (IPDA) based on droplet digital PCR was developed to identify intact proviral DNA and quantify HIV-1 latency reservoirs in patients infected with HIV-1.
Zehua Zhou, Xinyu Zhang, Meiyu Wang, Fei Jiang, Jincheng Tong, Jianhui Nie, Chenyan Zhao, Haifa Zheng, Zhen Zhang, Penghui Shi, Weiguang Fan, Youchun Wang, Weijin Huang   +12 more
doaj   +1 more source

Detection and annotation of transposable element insertions and deletions on the human genome using nanopore sequencing

iScience, 2023
Summary: Repetitive sequences represent about 45% of the human genome. Some are transposable elements (TEs) with the ability to change their position in the genome, creating genetic variability both as insertions or deletions, with potential pathogenic ...
Javier Cuenca-Guardiola, Belén de la Morena-Barrio, Esther Navarro-Manzano, Jonathan Stevens, Willem H. Ouwehand, Nicholas S. Gleadall, Javier Corral, Jesualdo Tomás Fernández-Breis   +7 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Akaluc bioluminescence offers superior sensitivity to track in vivo dynamics of SARS-CoV-2 infection

iScience
Summary: Monitoring in vivo viral dynamics can improve our understanding of pathogenicity and tissue tropism. Because the gene size of RNA viruses is typically small, NanoLuc is the primary choice for accommodation within viral genome.
Tomokazu Tamura, Hayato Ito, Shiho Torii, Lei Wang, Rigel Suzuki, Shuhei Tsujino, Akifumi Kamiyama, Yoshitaka Oda, Masumi Tsuda, Yuhei Morioka, Saori Suzuki, Kotaro Shirakawa, Kei Sato, Kumiko Yoshimatsu, Yoshiharu Matsuura, Satoshi Iwano, Shinya Tanaka, Takasuke Fukuhara   +17 more
doaj   +1 more source

Seeing Natural Images through the Eye of a Fly with Remote Focusing Two-Photon Microscopy

iScience, 2020
Summary: Visual systems of many animals, including the fruit fly Drosophila, represent the surrounding space as 2D maps, formed by populations of neurons. Advanced genetic tools make the fly visual system especially well accessible.
Anna Schuetzenberger, Alexander Borst
doaj   +1 more source

Epitranscriptome analysis of NAD-capped RNA by spike-in-based normalization and prediction of chronological age

iScience, 2023
Summary: Nicotinamide adenine dinucleotide (NAD) can be used as an initiating nucleotide in RNA transcription to produce NAD-capped RNA (NAD-RNA).
Dean Li, Shuwen Ge, Yandong Liu, Miaomiao Pan, Xueting Wang, Guojing Han, Sili Zou, Rui Liu, Kongyan Niu, Chao Zhao, Nan Liu, Lefeng Qu   +11 more
doaj   +1 more source