Results 21 to 30 of about 38,664 (219)

Turning the tide on Alzheimer’s disease: modulation of γ-secretase

Cell & Bioscience, 2022
Alzheimer’s disease (AD) is the most common type of neurodegenerative disorder. Amyloid-beta (Aβ) plaques are integral to the “amyloid hypothesis,” which states that the accumulation of Aβ peptides triggers a cascade of pathological events leading to ...
Joanna E. Luo, Yue-Ming Li
doaj   +1 more source

Presenilin/γ-secretase and inflammation [PDF]

Frontiers in Aging Neuroscience, 2010
Presenilins (PS) are the catalytic components of gamma-secretase, an aspartyl protease that regulates through proteolytic processing the function of multiple signaling proteins. Specially relevant is the gamma-secretase-dependent cleavage of the beta-amyloid precursor protein (APP) since generates the beta-amyloid (Abeta) peptides that aggregate and ...
openaire   +4 more sources

Gender- and age-dependent gamma-secretase activity in mouse brain and its implication in sporadic Alzheimer disease. [PDF]

PLoS ONE, 2009
Alzheimer disease (AD) is an age-related disorder. Aging and female gender are two important risk factors associated with sporadic AD. However, the mechanism by which aging and gender contribute to the pathogenesis of sporadic AD is unclear.
Lisa Placanica, Lei Zhu, Yue-Ming Li
doaj   +1 more source

Alzheimer-mutant γ-secretase complexes stall amyloid β-peptide production

eLife
Missense mutations in the amyloid precursor protein (APP) and presenilin-1 (PSEN1) cause early-onset familial Alzheimer’s disease (FAD) and alter proteolytic production of secreted 38-to-43-residue amyloid β-peptides (Aβ) by the PSEN1-containing γ ...
Parnian Arafi, Sujan Devkota, Emily Williams, Masato Maesako, Michael S Wolfe   +4 more
doaj   +1 more source

Limited Substrate Specificity of PS/γ-Secretase Is Supported by Novel Multiplexed FRET Analysis in Live Cells

Biosensors, 2021
Presenilin (PS)/γ-secretase is an aspartyl protease that processes a wide range of transmembrane proteins such as the amyloid precursor protein (APP) and Notch1, playing essential roles in normal biological events and diseases.
Mei C. Q. Houser, Yuliia Turchyna, Florian Perrin, Lori Chibnik, Oksana Berezovska, Masato Maesako   +5 more
doaj   +1 more source

Complex Regulation of gamma-Secretase: from Obligatory to Modulatory Subunits

Frontiers in Aging Neuroscience, 2015
gamma-Secretase is a four subunit, 19-pass transmembrane enzyme that cleaves amyloid precursor protein, catalyzing the formation of amyloid beta peptides that form amyloid plaques, which contribute to Alzheimer’s disease pathogenesis.
Natalya eGertsik, Danica eChiu, Yueming eLI   +2 more
doaj   +1 more source

Divergent Roles of mGlu2 and mGlu3 Receptors in Amyloid‐β Production and Cognitive Dysfunctions in Alzheimer's Disease

Advanced Science, EarlyView.
This study explores the opposing effects of the mGluR2 and mGluR3 receptors on amyloid precursor protein processing. mGluR2 promotes amyloidogenic cleavage, while mGluR3 favors non‐amyloidogenic pathways. Using a brain‐penetrant nanobody as a mGluR2 positive allosteric modulator, the study uncovers how its chronic activation aggravates amyloid‐β burden
Pierre‐André Lafon, Mireille Elodie Tsitokana, Ugo Guy Alenda, Yen‐Ling Lian, Clémentine Eva Philibert, Mathieu Oosterlaken, Marta Cimadevila, Gaëlle Dudon, Jessica Monnic, Salomé Roux, Julie Bessié, Séverine Diem, Franck Vandermoere, Laurent Prézeau, Patrick Chames, Julie Kniazeff, Sylvie Claeysen, Anaïs Menny, Jean‐Philippe Pin, Véronique Perrier, Jianfeng Liu, Philippe Rondard   +21 more
wiley   +1 more source

BCMA‐Engineered Dendritic Cell‐Derived Exosomes as Bi‐Functional Therapeutics Orchestrating Cytokine Sequestration and Immune Activation for Multiple Myeloma

Advanced Science, EarlyView.
A dual‐function cell‐free therapeutic based on DC2.4 cell‐derived exosomes engineered to display BCMA. (Left) Soluble Ligand Sequestration (Decoy Function): DB Exo act as molecular decoys that predominantly sequester soluble APRIL with partial BAFF attenuation, effectively disrupting the NF‐κB survival signaling axis and suppressing myeloma cell ...
Yuqing Zeng, Chao He, Zhibin He, Hongbo Chen, Fang Cheng, Yongjiang Zheng   +5 more
wiley   +1 more source

Identification and biology of β‐secretase [PDF]

Journal of Neurochemistry, 2011
J. Neurochem. (2012) 120 (Suppl. 1), 55–61.AbstractOur knowledge of the etiology of Alzheimer’s disease (AD) has advanced tremendously since the discovery of amyloid beta (Aβ) aggregation in diseased brains. Accumulating evidence suggests that Aβ plays a causative role in AD.
Patty C, Kandalepas, Robert, Vassar
openaire   +2 more sources

SSR4 sustains Tertiary Lymphoid Structures by Regulation Quality Control of N‐linked Glycosylation During B‐cell Differentiation Into Plasmacyte in Colorectal Cancer

Advanced Science, EarlyView.
SSR4, a TRAP component induced in B cells, governs BAFFR N‐glycosylation via DDOST to sustain NF‐κB signaling, B‐cell differentiation, and TLS maturation. Its loss impairs anti‐tumor immunity, while overexpression improves antibody glycosylation and ADCC, revealing a critical regulator for cancer immunotherapy.
Wei Zhao, Youcai Zhao, Haiyang Li, Bowen Yang, Siyan Lu, Xueting Fu, Caixia Zhang, Yirong Chen, Xiaofeng Bian, Xinghua Ma, Xiaobing Yang, Bin Wang, Yuan Fang, Lulu Yang, Yelin Zhao, Shuli Zhao   +15 more
wiley   +1 more source