Results 81 to 90 of about 1,065,070 (295)

Fluorescence and phosphorescence from individual C$_{60}$ molecules excited by local electron tunneling

, 2005
Using the highly localized current of electrons tunneling through a double barrier Scanning Tunneling Microscope (STM) junction, we excite luminescence from a selected C$_{60}$ molecule in the surface layer of fullerene nanocrystals grown on an ultrathin
Blüm, Marie-Christine, Chergui, Majed, Patthey, François, Pivetta, Marina, Schneider, Wolf-Dieter, Ćavar, Elizabeta   +5 more
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Spatially resolved coherent 2D fluorescence spectroscopy within a high-NA microscope [PDF]

EPJ Web of Conferences, 2019
We have developed coherent two-dimensional (2D) fluorescence micro-spectroscopy which probes the nonlinear optical response at surfaces via fluorescence detection with sub-micron spatial resolution.
Li Donghai, Nuss Matthias, Goetz Sebastian, Kolb Verena, Pflaum Jens, Trovatello Chiara, Cerullo Giulio, Brixner Tobias   +7 more
doaj   +1 more source

Microscope calibration using laser written fluorescence

Optics Express, 2018
16 pages, 10 ...
Alexander D. Corbett, Michael Shaw, Andrew Yacoot, Andrew Jefferson, Lothar Schermelleh, Tony Wilson, Martin Booth, Patrick S. Salter   +7 more
openaire   +5 more sources

Continuous volumetric imaging via an optical phase-locked ultrasound lens

, 2016
In vivo imaging at high spatiotemporal resolution is key to the understanding of complex biological systems. We integrated an optical phase-locked ultrasound lens into a two-photon fluorescence microscope and achieved microsecond-scale axial scanning ...
Cui, M., Germain, R., Kong, L., Lin, C., Little, J., Lämmermann, T., Tang, J., Yu, Y.   +7 more
core   +1 more source

Fluorescent protein tagging confirms the presence of ribosomal proteins atDrosophilapolytene chromosomes [PDF]

, 2013
\ud \ud Most ribosomal proteins (RPs) are stoichiometrically incorporated into ribosomal subunits and play essential roles in ribosome biogenesis and function.
Bischof, Bohnsack, Brogna, Coleno-Costes, Dai, Dai, De, De, Freeman, Gavin, Gerlitz, Hurt, Inada, Johansen, Jurica, Klinge, Kondrashov, Lam, Lee, Malygin, Marygold, Ni, Ramanathan, Shi, Shopland, Steitz, Warner, Zhimulev   +27 more
core   +3 more sources

Class IIa HDACs forced degradation allows resensitization of oxaliplatin‐resistant FBXW7‐mutated colorectal cancer

Molecular Oncology, EarlyView.
HDAC4 is degraded by the E3 ligase FBXW7. In colorectal cancer, FBXW7 mutations prevent HDAC4 degradation, leading to oxaliplatin resistance. Forced degradation of HDAC4 using a PROTAC compound restores drug sensitivity by resetting the super‐enhancer landscape, reprogramming the epigenetic state of FBXW7‐mutated cells to resemble oxaliplatin ...
Vanessa Tolotto, Nicolò Gualandi, Ylenia Cortolezzis, Raffaella Picco, Monica Colitti, Francesca D'Este, Mariachiara Gani, Wayne W. Hancock, Giovanni Terrosu, Cristina Degrassi, Francesca Agostini, Claudio Brancolini, Luigi E. Xodo, Eros Di Giorgio   +13 more
wiley   +1 more source

Single-pixel phase and fluorescence microscope

Optics Express, 2018
Multimodal microscopes either use multiple cameras or a single camera to multiplex different modes spatially. The former needs expertise demanding alignment and the latter suffers from limited spatial resolution. Here, we report an alignment-free full-resolution simultaneous fluorescence and phase imaging approach using single-pixel detectors.
Yang Liu, Jinli Suo, Yuanlong Zhang, Qionghai Dai   +3 more
openaire   +2 more sources

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

Molecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice, Jose I. Lopez, Aitziber Ugalde‐Olano, Maite Zufiaurre, Ianire Astobiza, Natalia Martin‐Martin, Laura Bozal‐Basterra, Saioa Garcia‐Longarte, Amaia Zabala‐Letona, Sofia Rey, Aida Santos‐Martin, Miguel Unda, Ana Loizaga‐Iriarte, Mariona Graupera, Paolo Nuciforo, Arkaitz Carracedo, Isabel Mendizabal   +16 more
wiley   +1 more source

Multifunctional albumin-stabilized gold nanoclusters for the reduction of cancer stem cells [PDF]

, 2019
Controlled delivery of multiple chemotherapeutics can improve the effectiveness of treatments and reduce side effects and relapses. Here in, we used albumin-stabilized gold nanoclusters modified with doxorubicin and SN38 (AuNCs-DS) as combined therapy ...
Aguado, Tania, Calero, Macarena, Castellanos, Milagros, Diaz, Ciro Rodriguez, Latorre, Alfonso, Latorre, Ana, Lazaro-Carrillo, Ana, Lecea, Mercedes, Romero-Pérez, Sonia, Sanchez-Puelles, José María, Somoza, Álvaro, Villanueva, Ángeles   +11 more
core   +2 more sources