Results 91 to 100 of about 626,384 (268)

Targeting PLD3 Reverses the Immunosuppressive Niche by Reprogramming Tumor‐Associated Macrophages and Potentiates Antitumor Immunity

open access: yesAdvanced Science, EarlyView.
PLD3 activates the lysosomal‐AKT‐NF‐κB axis to drive cellular senescence in macrophages, establishing an immunosuppressive TME by limiting the infiltration of cytotoxic T, NK, and NKT cells, which confers resistance to anti‐PD‐1 therapy. Abrine inhibits PLD3 expression, restoring antitumor immunity and synergizing with anti‐PD‐1 treatment.
Xingtu Qin   +11 more
wiley   +1 more source

Thermoadaptation of α-Galactosidase AgaB1 in Thermus thermophilus [PDF]

open access: yes, 2002
The evolutionary potential of a thermostable α-galactosidase, with regard to improved catalytic activity at high temperatures, was investigated by employing an in vivo selection system based on thermophilic bacteria.
Olafur Fridjonsson   +2 more
core   +1 more source

A rapid permeabilization procedure for accurate quantitative determination of β-galactosidase activity in yeast cells [PDF]

open access: yesFEMS Microbiology Letters, 1995
A procedure is described which allows the rapid permeabilization of yeast cells, Schizosaccharomyces pombe and Saccharomyces cerevisiae, for quantitative in situ assays of beta-galactosidase activity. Yeast cells are permeabilized by incubation in buffer containing 0.2% of the detergent sodium lauroyl sarcosinate without any need for washing or ...
openaire   +2 more sources

Senescent Cell Derived Artificial Vesicle‐Based Senolytic Sonovaccine Platform with Augmented Lymph Node Delivery and Antigen Cross‐Presentation Efficacy

open access: yesAdvanced Science, EarlyView.
A senolytic sonovaccine platform (SenoVac) is developed, in which senescent cell‐derived vesicles serve as broad senescent cell antigen reservior. The “2‐step” click chemistry strategy for effective lymph node delivery, and ultrasound‐triggered endosomal escape to boost cross‐presentation, ensures efficient senescent cell clearance and disease ...
Liang Zhang   +10 more
wiley   +1 more source

Imobilização de α-galactosidase de Aspergillus niger em resina de troca iônica Duolite A-568 [PDF]

open access: yes, 2012
Immobilized enzymes provide many advantages when compared to the usage of their free forms. Among these ones, remarkable advantages are the possibility of the biocatalyst reusability, easy separation at the end of the process, its usage in continuous way
Costa, Henrique Coutinho de Barcelos
core   +1 more source

SIRT6‐Mediated Deacetylation of ATF3 Promotes Silica‐Induced Lung Fibrosis by Enhancing its Nuclear Import via Binding to Importin α

open access: yesAdvanced Science, EarlyView.
SIRT6‐mediated ATF3 acetylation drives MGARP transcription and mitochondrial dysfunction in macrophages, promoting macrophage senescence and pulmonary fibrosis. Mechanistically, HSP70/Importin α competitively binds to ATF3, modulating its nuclear translocation.
Demin Cheng   +18 more
wiley   +1 more source

Renal IGFBP6 Interacts With THBS1 to Drive Renal Cellular Senescence and Fibrosis

open access: yesAdvanced Science, EarlyView.
ABSTRACT Epithelial dedifferentiation and myofibroblast activation are critical drivers of chronic kidney disease (CKD) progression. Elevated levels of IGFBP6 have been linked to decreased renal function in CKD patients, but its precise role and underlying mechanisms remain unclear.
Ju‐tao Yu   +26 more
wiley   +1 more source

A purified α-galactosidase from Aspergillus niger with enhanced kinetic characteristics [PDF]

open access: yes, 1991
Extracellular α-galactosidase from Aspergillus niger was purified 128-fold over the crude extract by gel filtration, ion exchange chromatography and chromatofocusing. Certain substrates and end products affected enzyme activity.
Christakopoulos, P   +7 more
core   +1 more source

Low copy number vectors for expression of fused genes to β-galactosidase inEscherichia coli [PDF]

open access: yesFEMS Microbiology Letters, 1991
A series of six expression vectors, pXM184Lac.A, B, C, pXM184Z.A, B, C, based on the low copy plasmid pACYC184 that allow for expression of proteins fused to beta-galactosidase in Escherichia coli is described. A level of 50,000 units of beta-galactosidase is routinely observed and is easily identifiable on protein gels.
openaire   +2 more sources

Pathological Mechanism‐Inspired Biomimetic Nano‐Senotherapy for Reversing Experimental Atherosclerosis in ApoE−/− Mice

open access: yesAdvanced Science, EarlyView.
The biomimetic self‐assembly nanomedicine reversing atherosclerosis via senotherapy strategy. ABSTRACT The greatest challenge in atherosclerosis (AS) management lies in achieving lesion reversal, not merely slowing progression. Senescent cell accumulation—driven by continuous generation and apoptotic resistance—perpetuates plaque pathology and ...
Yuhan Tian   +9 more
wiley   +1 more source

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