Results 31 to 40 of about 149 (147)

The Streptococcus pneumoniae Beta-Galactosidase Is a Surface Protein [PDF]

Journal of Bacteriology, 2000
ABSTRACT The β-galactosidase gene of Streptococcus pneumoniae , bgaA , encodes a putative 2,235-amino-acid protein with the two amino acid motifs characteristic of the glycosyl hydrolase family of proteins.
Dorothea Zähner, Regine Hakenbeck
openaire   +3 more sources

Mechanical Load‐Induced Upregulation of Talin2 through Non‐Canonical Deubiquitination of OTUB1 Drives Facet Joint Osteoarthritis Pathogenesis

Advanced Science, EarlyView.
Facet joint osteoarthritis (FJOA), prevalent in the elderly, involves Talin2 upregulation promoting ECM degradation while suppressing synthesis. Mechanical load stabilizes Talin2 via OTUB1‐mediated non‐canonical deubiquitination, driving CCL2 expression that recruits immune cells, exacerbating inflammatory joint degeneration.
Yizhen Huang, Heng Sun, Haojie Chen, Xiangpeng Wang, Junduo Zhao, Yang Jiao, Hongyi Zhou, Haoyu Cai, Jiafeng Dai, Xuan Huang, Weiyun Chen, Jianxiong Shen   +11 more
wiley   +1 more source

The FGF13‐Caveolin‐1 Axis: A Key Player in the Pathogenesis of Doxorubicin‐ and D‐Galactose‐Induced Premature Cardiac Aging

Advanced Science, EarlyView.
The FGF13 level is significantly downregulated in premature aging murine hearts subject to D‐galactose and Doxorubicin. FGF13 overexpression and deficiency exacerbated and alleviated Doxorubicin/D‐galactose‐induced myocardial aging characteristics and functional impairment, respectively.
Enzhao Shen, Yuecheng Wu, Weijian Ye, Sihang Li, Junjie Zhu, Meifan Jiang, Zhicheng Hu, Gaoyong Cao, Xiaojing Yi, Fan Li, Zhouhao Tang, Xiaokun Li, Kwang Youl Lee, Litai Jin, Xu Wang, Weitao Cong   +15 more
wiley   +1 more source

Inhibition and Rescue of Hyperglycemia‐Induced Cellular Senescence by Mitochondrial Transfer from Enucleated Mesenchymal Stem Cell‐Derived Microvesicles for Chronic Wound Healing

Advanced Science, EarlyView.
This study develops enucleated MSC‐derived microvesicles (Mito@euMVs) to deliver functional mitochondria for optimizing wound repair. By efficiently encapsulating mitochondria, Mito@euMVs rejuvenate hyperglycemia‐induced senescent fibroblasts and HUVECs. Using PVA microneedle patches, the therapeutic efficacy of Mito@euMVs is validated in diabetic rats
Zixuan Dong, Xiaobing Liu, Shichun Li, Xiaoling Fu   +3 more
wiley   +1 more source

Nephronectin (NPNT) is a Crucial Determinant of Idiopathic Pulmonary Fibrosis: Modulating Cellular Senescence via the ITGA3/YAP1 Signaling Axis

Advanced Science, EarlyView.
Through a comprehensive multi‐omics analysis, this study identifies a marked reduction in Nephronectin (NPNT) expression within fibrotic lung tissue. This reduction impairs the binding capability to the ITGA3 receptor, consequently causing YAP1 to persist in the cytoplasm, where it undergoes degradation.
Jiayu Guo, Yan Wang, Qiudi Liu, Zhaoyang Luo, Xiaomu Tian, Yuquan Wang, Yang Liu, Zhiwei Ning, Yingying Guo, Huiying Gao, Xinyue Wang, Jinglong Feng, Mengmeng Liu, Dina Saifullina, Yixin Zhang, Tengfei Pan, Yu Bian, Tao Ban, Tianyu Li, Yunyan Gu, Haihai Liang   +20 more
wiley   +1 more source

Chromo-fluorogenic probes for beta-galactosidase detection

, 2021
beta-Galactosidase (beta-Gal) is a widely used enzyme as a reporter gene in the field of molecular biology which hydrolyzes the beta-galactosides into monosaccharides. beta-Gal is an essential enzyme in humans and its deficiency or its overexpression results in several rare diseases.
B. LOZANO-TORRES, J. BLANDEZ, F. SANCENON, R. MARTINEZ-MANEZ   +3 more
openaire   +3 more sources

Efflux of beta-galactosidase products from Escherichia coli [PDF]

Journal of Bacteriology, 1980
Several different strains of Escherichia coli were grown on a variety of carbon sources under various growth conditions. Lactose was added (usually at mid-log phase), and the concentrations of the products of beta-galactosidase action on this sugar (galactose, glucose, and allolactose) were determined at various times thereafter in the total culture ...
E B Fung, R E Huber, J Lytton
openaire   +3 more sources

A Dual‐Targeting T6SS DNase Drives Bacterial Antagonism and Eukaryotic Apoptosis via the cGAS‐STING‐TNF Axis

Advanced Science, EarlyView.
The bacterial Type VI secretion system (T6SS) emerges as a sophisticated virulence mechanism, leveraging the dual‐function effector TkeA from Yersinia pseudotuberculosis. TkeA concurrently damages rival bacteria and host cell DNA, triggering the host's cGAS‐STING‐TNF pathway and inducing apoptosis.
Li Song, Lei Xu, Pengfei Zhang, Shuying Li, Yichen Qu, Yixin Zhao, Zhenkun Shi, Ruiqi Ma, Yongdong Li, Yi Chen, Yao Wang, Zhengfan Jiang, Gehong Wei, Xihui Shen   +13 more
wiley   +1 more source

Tβ4‐Engineered ADSC Extracellular Vesicles Rescue Cell Senescence Through Separable Microneedle Patches for Diabetic Wound Healing

Advanced Science, EarlyView.
A separable microneedle patch is designed for Tβ4–modified ADSC‐derived extracellular vesicles delivery. The overexpressed Tβ4 released from the microneedles can mitigate cellular senescence and promote wound healing via the PTEN/PI3K/AKT pathway, offering a promising approach for diabetic wound treatment. This bioengineered therapeutic system serve as
Youjun Ding, Jinglin Wang, Jiaye Li, Yi Cheng, Shuyin Zhou, Yepeng Zhang, Yuanjin Zhao, Min Zhou   +7 more
wiley   +1 more source

beta-Galactosidase alpha-complementation. Overlapping sequences.

Journal of Biological Chemistry, 1981
Enzyme activity is restored to two defective beta-galactosidase molecules (M15 protein lacking amino acid residues 11-41 and M112 protein lacking residues 23-31) by incubation with CNBr2 (residues 3-92 of beta-galactosidase). M15 and M112 proteins (alpha-acceptors) are dimers. Complemented enzyme, like wild type, has a tetrameric structure. Cleavage of
J K Welply, Irving Zabin, Audree V. Fowler   +2 more
openaire   +3 more sources