Results 121 to 130 of about 49,543 (282)

Cryo‐EM Structures Reveal the Molecular Basis of Asymmetric Allosteric Activation by MMOB in the Hydroxylase of Soluble Methane Monooxygenase

Advanced Science, EarlyView.
Cryo‐EM analysis reveals an asymmetric MMOH–MMOB complex with distinct protomers, where MMOB binding triggers structural rearrangements from the surface to the active site. This conformational asymmetry shortens the Fe···Fe distance to 2.7 Å in one protomer, forming a geometry suitable for O2 activation and supporting a sequential catalytic mechanism ...
Yunha Hwang, Bumhan Ryu, Soyeon Park, Dong‐Heon Lee, Hyo Jin Hong, Jeong‐Geol Na, Chul Gyu Song, Hyun Goo Kang, Edwin Pozharski, Seung Jae Lee   +9 more
wiley   +1 more source

Mechanisms of Aristolochic Acid Resistance in Specialist Butterflies and Evolutionary Insights for Potential Protective Pathways

Advanced Science, EarlyView.
The study provides an extreme example of insect adaptation to highly toxic defenses of host plants, and investigates the complex strategies to resist carcinogenic aristolochic acids, including physical isolation, metabolic detoxification, and DNA repair.
Yang Luan, Yubo Zhang, Jingjing Li, Jianqing Zhu, Yuyang Lei, Yushi Hu, Zhenqiang Xin, Tianpei Xie, Jiang Zheng, Yuanyuan Lin, Jingjing Shen, Yiyi Cao, Xinyue You, Jing Xi, Jiaying Wu, Weiying Liu, Xinyu Zhang, Yuanting Zheng, David J. Lohman, Leming Shi, Wei Zhang   +20 more
wiley   +1 more source

Complex analysis of the national Hereditary angioedema cohort in Slovakia – Identification of 12 novel variants in SERPING1 gene

World Allergy Organization Journal
Background: Hereditary angioedema (HAE) is a rare autosomal dominant genetic disease characterised by acute episodes of non-pruritic skin and submucosal swelling caused by increase in vascular permeability.
Adam Markocsy, MD, Katarina Hrubiskova, MD, Martin Hrubisko, MD, PhD, Tomas Freiberger, MD, PhD, Hana Grombirikova, MSc, Lenka Dolesova, MSc, PhD, Ludmila Slivka Vavrova, MSc, PhD, Regina Lohajova Behulova, MSc, PhD, Martina Ondrusova, MSc, PhD, MPH, Peter Banovcin, MD, PhD, Karolina Vorcakova, MD, PhD, Milos Jesenak, MD, MSc, PhD, MBA, MHA, FAAAAI   +11 more
doaj   +1 more source

F13A1‐Mediated Macrophage Activation Promotes MASH Progression via the PKM2/HIF1A Pathway

Advanced Science, EarlyView.
In fatty liver disease, hepatocytes exposed to palmitate release S1P, which activates calcium signaling in macrophages. Elevated calcium enhances the activity of F13A1, driving PKM2 dimerization. The PKM2 dimers cause Warburg effect, translocate to the nucleus, cooperate with HIF1A, and upregulate IL1B expression, ultimately promoting classical ...
Qianrang Lu, Meiching Ong, Xuewen Yi, Muqiong Xing, Xinyao Tian, Ke Zhang, Ling Lu, Hao Wang, Xiaohan Lin, Jun Fang, Aibo Mu, Jiaying Cao, Jingyu Jiang, Feng Gao, Hongjun Li, Baohong Wang, Qi Ling   +16 more
wiley   +1 more source

Gut Microbe‐Driven Resistance Mechanisms in Propylea Japonica: Insights from Horizontal Gene Transfer and Oxidative Phosphorylation

Advanced Science, EarlyView.
Acinetobacter regulates dinotefuran tolerance in Propylea japonica by mediating the expression of the horizontally transferred gene PjDUF1. Abstract Insect–microbial symbiont relationships are widespread in nature and often involve lateral gene transfer.
Ningbo HuangFu, Xiangzhen Zhu, Zhijuan Tang, Li Wang, Kaixin Zhang, Dongyang Li, Jichao Ji, Jinjie Cui, Zhaojiang Guo, Junyu Luo, Xueke Gao   +10 more
wiley   +1 more source

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

Advanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Bioinformatic analysis of single nucleotide variants in the F12 gene associated with hereditary angioedema

Медицинская иммунология
Hereditary angioedema (HAE) is a genetically determined disorder, a primary immunodeficiency involving complement system dysfunction. In most patients, the disease is characterized by a deficiency of C1 inhibitor (type I HAE) or impaired functional ...
A. V. Sedykh, Yu. V. Ostankova, A. N. Schemelev, Areg A. Totolian   +3 more
doaj   +1 more source

A Multiepitope‐Based Lateral Flow Assay for Leprosy Antibodies

Analysis &Sensing, EarlyView.
An innovative lateral flow assay for leprosy diagnosis is based on gold nanoparticles and synthetic Mycobacterium leprae epitopes conjugated to keyhole limpet hemocyanin protein to enhance antibody detection. This strategy provides a rapid, accurate, and low‐cost approach for resource‐limited settings, enabling the early detection of infection. Leprosy
Cristiane Zocatelli‐Ribeiro, Camila dos Anjos Proença, Ana Carolina da Rosa Nogarolli, Ana Fabiele Domakoski Trevisan, Thiago Neves Machado, João Carlos Degraf Muzzi, Larissa Magalhães Alvarenga, Juliana de Moura   +7 more
wiley   +1 more source

Surfactant‐Enhanced Electrospun Nanofiber Filters for Efficient Viral and Bacterial Inactivation

Journal of Applied Polymer Science, EarlyView.
In this work, electrospun polyacrylonitrile (PAN) nanofibrous filters functionalized with surfactants (CTAB, CPC, and SDS) were developed for air filtration applications. The PAN nanofiber mats enable efficient particulate matter capture while simultaneously providing antimicrobial and antiviral activity against bacteria (E. coli and S.
Edilton N. da Silva, Paulo A. M. Chagas, Gustavo C. da Mata, Felipe A. Lima, Fabiana B. Furtado, Wanderley P. de Oliveira, Rejane M. T. Grotto, Clovis W. O. de Souza, Mônica L. Aguiar, Vádila G. Guerra   +9 more
wiley   +1 more source

A Tolerogenic Plasmid Inhibits Autoantibody Production Triggered by Immunization With Human Peptidyl Arginine Deiminase 4

Arthritis &Rheumatology, EarlyView.
Objective Rheumatoid arthritis (RA) is usually preceded and likely mediated by autoantibodies to citrullinated proteins (ACPAs) that recognize citrulline residues on multiple proteins. Conversion of arginine into citrulline is performed by enzymes called peptidyl arginine deiminases (PADs). We have previously demonstrated that the human PAD4 (hPAD4) is
Philippe P. Pagni, Vijetha Kumar, Nathalie C. Lambert, Eva Frison, Herve Luche, Marielle Mello, Magali Torres, Johnna D. Wesley, Matthias von Herrath, Jean Roudier, Isabelle Auger   +10 more
wiley   +1 more source