Results 311 to 320 of about 14,336,830 (357)

KRAS mRNA Spleen‐Targeting Lipid Nanoparticles Synergize with Irinotecan Silicasomes to Robustly Augment the Cancer Immunity Cycle in Pancreatic Cancer

Advanced Science, EarlyView.
To overcome pancreatic cancer's immunosuppressive barriers, this study explores a dual approach: triggering immunogenic tumor cell death at the primary tumor site with irinotecan‐loaded silicasomes and enhancing immune activation in the spleen using LNPs encapsulating tumor antigen mRNA and a TLR7/8 agonist.
Lijia Luo, Xiang Wang, Yu‐Pei Liao, Andre E. Nel   +3 more
wiley   +1 more source

Targeting Hyperglycemic Bone Pre‐Metastatic Niche for Breast Cancer Bone Metastasis Therapy

Advanced Science, EarlyView.
This study reveals that breast cancer creates a hyperglycemic pre‐metastatic niche in bone prior to colonization and amplifies glucose metabolism post‐metastasis. To target this mechanism, a biomimetic enzyme‐engineered nanoplatform that disrupts tumor glycolytic pathways, proposing a therapeutic strategy to inhibit breast cancer bone metastasis by ...
Jianxin Ye, Peng Hu, Rui Zhang, Lei Zhou, Zonghua Luo, Yanan Chen, Shengzhe Ruan, Mengyi Zhu, Huaze Ding, Yike Qian, Yan Xing, Tong Meng, Changping Wang, Dianwen Song   +13 more
wiley   +1 more source

Commensal Viruses Promote Intestinal Stem Cell Regeneration Following Radiation Damage by Inhibiting Hyperactivation of RIG‐I and Notch Signals

Advanced Science, EarlyView.
Ionizing radiation disrupts gut virome and bacteriome. Gut commensal viruses protect against intestinal damage and promote stem cell regeneration by inhibiting hyperactivation of RIG‐I and Notch signaling in stem cells. Fecal virome transplantation (FVT) from healthy donors can serve as a potential therapeutic intervention by enriching phages targeting
Xiaotong Zhao, Yu Cai, Yujia Hou, Yanjin Wu, Tingting Wei, Lili Li, Zhaojun Duan, Xinran Lu, Jiahui Meng, Haitao Zhou, Qin Wang, Jinhan Wang, Chang Xu, Liqing Du, Saijun Fan, Feng Wang, Qiang Liu, Yang Liu   +17 more
wiley   +1 more source

Developing Biomaterial‐Based mRNA Delivery System for Lung Disease Treatment

Advanced Science, EarlyView.
Schematic illustration of biomaterial delivery mRNA for the treatment of lung diseases. Abstract Lung disease remains a persistent global health challenge. Advances in medical research have led to innovative strategies to combat these conditions, with biomaterials emerging as a promising platform for targeted drug delivery.
Qiancheng Gu, Huaqian Xue, Zhiyun Liu, Jiameng Rao, Lingyao Zeng, Chen Zhang, Lanjie Lei, Liyun Shi   +7 more
wiley   +1 more source

Acidosis Forces Fatty Acid Uptake and Metabolism in Cancer Cells Regardless of Genotype

Advanced Science, EarlyView.
This study demonstrates that biological acidosis, commonly observed in tumors and ischemic conditions, actively promotes the protonation of fatty acids, thereby facilitating the uptake of their neutral forms. Consequently, the preference for lipid metabolism in acid‐exposed cells does not arise from genetic reprogramming that prioritizes lipids as the ...
Sébastien Ibanez, Maria Virginia Giolito, Sultan Al‐Siyabi, Kristian Serafimov, Florine Laloux, Emeline Dierge, Léo Aubert, Céline Guilbaud, Selena Kaye, Paula Varon, Dorothée Marchand, Hanne Vlieghe, Emmanuel Hermans, Caroline Bouzin, Davide Brusa, Christiani Andrade Amorim, Barabara Pachikian, Yvan Larondelle, Cyril Corbet, Chantal Dessy, Olivier Feron   +20 more
wiley   +1 more source

ADAR1 as a Placental Innate Immune Rheostat Sustaining the Homeostatic Balance of Intrinsic Interferon Response at the Maternal‐Fetal Interface

Advanced Science, EarlyView.
This study reveals that ADAR1, an RNA‐editing enzyme, fine‐tunes immune responses in the placenta by preventing the accumulation of immunogenic double‐stranded RNAs (dsRNAs) from interferon‐stimulated genes. The loss of ADAR1 in the placenta leads to excessive interferon signaling restricted to the junctional zone, disrupting placental development and ...
Xiaogang Chen, Xiangchao Xu, Jiahao Chen, Huiru Zhang, Wanshan Zheng, Wenzhe Yu, Xiaoqian Hu, Bin Cao   +7 more
wiley   +1 more source

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An RNase H-powered DNA walking machine for sensitive detection of RNase H and the screening of related inhibitors.

Nanoscale, 2020
Ribonuclease H (RNase H), an intracellular ribonuclease, plays a crucial role in cellular processes and especially relates to many disease processes. Here, we report a novel signal amplification strategy based on an RNase H-powered DNA walking machine ...
Yafang Wang, Namin Hu, Chang Liu, Cunpeng Nie, Manman He, Juan Zhang, Qiaoqin Yu, Chuan Zhao, Tingting Chen, X. Chu   +9 more
semanticscholar   +4 more sources

Molecular diversities of RNases H

Journal of Bioscience and Bioengineering, 1999
RNase H is an enzyme that specifically cleaves RNA hybridized to DNA. The enzyme is ubiquitously present in various organisms. Single bacterial and eucaryotic cells often contain two RNases H, whereas single archaeal cells contain only one. To determine whether there is a physiological significance in the ubiquity and multiplicity of the enzyme, and ...
Masaaki Morikawa, Shigenori Kanaya, Mitsuru Haruki, Naoto Ohtani   +3 more
openaire   +3 more sources

RNases H: Structure and mechanism

DNA Repair, 2019
RNases H are a family of endonucleases that hydrolyze RNA residues in various nucleic acids. These enzymes are present in all branches of life, and their counterpart domains are also found in reverse transcriptases (RTs) from retroviruses and retroelements.
Marcin Nowotny, Malwina Hyjek, Małgorzata Figiel   +2 more
openaire   +3 more sources

Function of RNase H in DNA replication revealed by RNase H defective mutants of Escherichia coli

Molecular and General Genetics MGG, 1984
Escherichia coli rnh mutants were isolated using localized mutagenesis and selective measurements of RNase H activity in mutagenized cell extracts with [3H]poly(rC) X poly(dG) as substrate. RNase H activity in extracts of one mutant, ON152 (rnh-91), was undetectable (less than 0.05% of that of wild-type cells).
Tuneko Okazaki, Tohru Ogawa
openaire   +3 more sources