Results 71 to 80 of about 14,424 (294)

Intrinsic dynamic behavior of enzyme:substrate complexes govern the catalytic action of β-galactosidases across clan GH-A

Scientific Reports, 2019
The conformational itineraries taken by carbohydrate residues in the catalytic subsite of retaining glycoside hydrolases (GHs), harness the link between substrate conformation and reactivity.
Rajender Kumar, Bernard Henrissat, Pedro M. Coutinho   +2 more
doaj   +1 more source

Quorum Sensing Inhibits Type III‐A CRISPR‐Cas System Activity Through Repressing Positive Regulators SarA and ArcR in Staphylococcus Aureus

Advanced Science, EarlyView.
This study proposes a novel model illustrating how quorum sensing (QS) regulates the type III‐A CRISPR‐Cas system in Staphylococcus aureus. The QS regulator AgrA suppresses CRISPR‐Cas activity by downregulating the transcriptional regulators SarA and ArcR.
Yang Li, Yuanyue Tang, Xiaofei Li, Nina Molin Høyland‐Kroghsbo, Hanne Ingmer, Xinan Jiao, Qiuchun Li   +6 more
wiley   +1 more source

EGFR‐TKIs Induced DPP4 Drives Metabolic Reprogramming of Persister Cells in Lung Cancer

Advanced Science, EarlyView.
Drug‐tolerant persister (DTP) cells emerge early during EGFR‐TKI treatment, preceding the development of acquired resistance. Elevated DPP4 in DTP cells drives metabolic reprogramming and antioxidant adaptation, promoting cell survival under drug pressure.
Yuanzhou Zhang, Xiaojun Zhang, Xupeng Yang, Xingshi Chen, Yuehong Wang, Jingying Hu, Rui Liu, Xiaoying Luo   +7 more
wiley   +1 more source

Optimization of Saccharomyces cerevisiae α-galactosidase production and application in the degradation of raffinose family oligosaccharides

Microbial Cell Factories, 2019
Background α-Galactosidases are enzymes that act on galactosides present in many vegetables, mainly legumes and cereals, have growing importance with respect to our diet.
María-Efigenia Álvarez-Cao, María-Esperanza Cerdán, María-Isabel González-Siso, Manuel Becerra   +3 more
doaj   +1 more source

A Study of Skeletal Stem Cell Dynamics and Its Potential Applications in the Design of a Titanium Implant for Senile Osteoporosis

Advanced Science, EarlyView.
Senescent mesenchymal stromal cells (MSCs) drive age‐related osteoporosis (A‐OP) via adipogenic bias. Resveratrol, selected from transcriptome‐identified core genes, is delivered locally using GelMA‐chitosan hydrogel‐functionalised titanium implants. In A‐OP microenvironments, the hydrogel enables the sustained release of resveratrol, which reverses ...
Wuzhe Fan, Tao Zheng, Mingsong Mao, Pengfei Gao, Yulu Yang, Rong Wang, Yao Yang, Yangpeng Zuo, Tiantian Yuan, Ruqing Bai, Weihu Yang, Xingchen Yan, Kaiyong Cai   +12 more
wiley   +1 more source

Aspergillus nidulans: A Potential Resource of the Production of the Native and Heterologous Enzymes for Industrial Applications

International Journal of Microbiology, 2020
Aspergillus nidulans is a filamentous fungus that is a potential resource for industrial enzymes. It is a versatile fungal cell factory that can synthesize various industrial enzymes such as cellulases, β-glucosidases, hemicellulases, laccases, lipases ...
Amit Kumar
doaj   +1 more source

Modulating Macrophage–Nucleus Pulposus Cell Crosstalk via Sequential Drug Delivery Attenuates Disc Degeneration

Advanced Science, EarlyView.
The G‐CS/MSN drug delivery system enhances intervertebral disc repair through sequential drug release. Abstract Intervertebral disc degeneration (IDD) is characterized by an inflammatory environment and dysregulation of the extracellular matrix metabolism (ECM).
Xiangzhen Kong, Rui Hu, Peng Zhang, Qi Li, Kangle Song, Hanwen Gu, Jihui Zheng, Shen Liu, Liang Liu, Lin Jin, Lei Cheng, Chengwei Li, Zhijian Wei   +12 more
wiley   +1 more source

Engineered Anti‐Senescence Trachea With Post‐Transplanted Regenerative Homeostasis

Advanced Science, EarlyView.
Bioengineered trachea undergoes post‐transplanted senescence, which is found in this study for the first time. Hebe‐ET is designed with dual anti‐senescence strategies: fiber‐film scaffold in cartilage rings for close‐packed cell interaction, and quercetin‐loaded fibrous rings for immune modulation.
Ziyin Pan, Hai Tang, Lanlan Wang, Qingfeng Bai, Yi Chen, Runfeng Cao, Weikang Lin, Lei Wang, Yulong Hu, Guofang Zhao, Minglei Yang, Weiyan Sun, Kun Zhang, Dawei Li, Chang Chen   +14 more
wiley   +1 more source

Whole yogurt sweetened with glucose-galactose syrup obtained by nanofiltration: Effect on galactooligosaccharides concentration, physicochemical and sensory properties

Applied Food Research, 2023
Glucose-galactose syrup is a sweetener obtained from whey. It is scarcely industrial produced due to its low level of sweetness and lower economic competitiveness compared to other traditional sugars.
Ana J. Mosquera-Martínez, José U. Sepúlveda-Valencia, Héctor J. Ciro-Velásquez, Sandra Vargas-Díaz, Laura Pérez-Escobar   +4 more
doaj  

Improvements in enzymatic preparation of alkyl glycosides

Czech Journal of Food Sciences, 2010
Three glycosides of middle chain aliphatic alcohols (hexanol and heptanol) were prepared by enzymatic glycosidation. The preparation of hexyl β-D-glucopyranoside was achieved in moderate yields via reverse hydrolysis catalysed by defatted meals from ...
Dagmar Bilaničová, Vladimír Mastihuba, Mária Mastihubová, Jana Bálešová, Štefan Schmidt   +4 more
doaj   +1 more source