Results 81 to 90 of about 15,174 (248)

Artificial Ribonucleases: Oligonucleotides Conjugated with Metal Ion Chelates of Azacrowns [PDF]

open access: yes, 2014
Ribonucleic acid (RNA) has many biological roles in cells: it takes part in coding, decoding, regulating and expressing of the genes as well as has the capacity to work as a catalyst in numerous biological reactions.
Niittymäki, Teija
core  

Advanced Materials for Biologics Delivery to Brain Tumors

open access: yesAdvanced Materials, EarlyView.
Material innovation is central to unlocking the therapeutic potential of biologics against many central nervous system diseases, including brain cancer. By engineering carriers with controlled transport, targeting, and release properties, advanced materials can overcome the blood–brain barrier and tumor microenvironment, improving the delivery of ...
Yuran Feng   +4 more
wiley   +1 more source

SURVEY AND SUMMARY The phylogenetic distribution of bacterial ribonucleases

open access: yes, 2002
Ribonucleases play key, often essential, roles in cellular metabolism. Nineteen ribonuclease activ-ities, from 22 different proteins, have so far been described in bacteria, the majority of them from either Escherichia coli or Bacillus subtilis.
Ciaraân Condon, Harald Putzer
core  

Construction of Highly Stable Cytotoxic Nuclear-Directed Ribonucleases

open access: yesMolecules, 2018
Ribonucleases are proteins whose use is promising in anticancer therapy. We have previously constructed different human pancreatic ribonuclease variants that are selectively cytotoxic for tumor cells by introducing a nuclear localization signal into ...
David Roura Padrosa   +5 more
doaj   +1 more source

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

open access: yesAdvanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang   +20 more
wiley   +1 more source

Coixenolide Enhances Antitumor Immunity of Cytotoxic CD8+ T Cells by Inhibiting S100A8/A9‐CD36 Axis in Obesity‐Associated Pancreatic Adenocarcinoma

open access: yesAdvanced Science, EarlyView.
Pancreatic adenocarcinoma (PAAD) remains highly lethal with limited treatment options. This study demonstrates that coixenolide, a bioactive compound from Coix lacryma‐jobi L. and a key component of the clinically approved Kanglaite injection, exhibits enhanced antitumor efficacy in high‐fat diet (HFD)‐induced obese mice bearing PAAD tumors compared to
Kaidi Chen   +20 more
wiley   +1 more source

A study of the Intracellular Routing of Cytotoxic Ribonucleases

open access: yes, 1995
Several ribonucleases serve as cytotoxic agents in host defense and in physiological cell death pathways. Although certain members of the pancreatic ribonuclease A superfamily can be toxic when applied to the outside of cells, they become thousands of ...
SAXENA, S. K   +7 more
core   +1 more source

Ribonucleases and angiogenins from fish

open access: yes, 2006
For the first time fish RNases have been isolated and characterized. Their functional and structural properties indicate that they belong to the RNase A superfamily (or tetrapod RNase superfamily), now more appropriately described as the vertebrate RNase
PONTICELLI S   +7 more
core   +2 more sources

Heavily and fully modified RNAs guide efficient SpyCas9-mediated genome editing

open access: yesNature Communications, 2018
Resistance of gRNA to ubiquitous ribonucleases is required for CRISPR-Cas9-based therapeutics. Here, the authors explore chemical modifications at all positions of the crRNA guide and tracrRNA cofactor, and identify modified versions that are more potent
Aamir Mir   +9 more
doaj   +1 more source

Modulation of miR‐23b Wnt/β‐catenin Axis Strengthens Endothelial Barrier Properties

open access: yesAdvanced Science, EarlyView.
Early blood‐brain barrier (BBB) disruption contributes to stroke and CNS disease pathology. miR‐23b was identified as a regulator of BBB integrity in brain endothelial cells. Inhibition of miR‐23b enhanced barrier‐associated properties, promoted repair‐related signaling, and reduced BBB leakage in experimental stroke models, supporting further ...
Victor Anthony Martinez   +16 more
wiley   +1 more source

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