Results 71 to 80 of about 6,021 (217)

Notch signaling in the regulation of hematopoietic stem cell [PDF]

, 2017
Purpose of Review Understanding the signaling pathways that govern hematopoietic stem and progenitor cells (HSPCs) is fundamental to uncover their regulation and how this is skewed in hematological malignancies.
Anjos-Afonso, Fernando, Carmelo, Joana Gonçalves, Lampreia, Fabio Pereira   +2 more
core   +2 more sources

Alleles at the Nicastrin locus modify presenilin 1- deficiency phenotype [PDF]

Proceedings of the National Academy of Sciences, 2002
Presenilin 1 (PS1), presenilin 2, and nicastrin form high molecular weight complexes that are necessary for the endoproteolysis of several type 1 transmembrane proteins, including amyloid precursor protein (APP) and the Notch receptor, by apparently similar mechanisms.
Gu, Y, Bergeron, C, Mathews, PM, Nixon, RA, Schmidt, SD, Huang, J, Erdebil, S, Liauw, J, Yu, G, Hasegawa, H, Song, YQ, Rozmahel, R, Mount, HTJ, Chen, F, Nguyen, V, St GeorgeHyslop, P, Westaway, D, Fraser, P   +17 more
openaire   +4 more sources

Deep sequencing of the Nicastrin gene in pooled DNA, the identification of genetic variants that affect risk of Alzheimer's disease.

PLoS ONE, 2011
Nicastrin is an obligatory component of the γ-secretase; the enzyme complex that leads to the production of Aβ fragments critically central to the pathogenesis of Alzheimer's disease (AD).
Michelle K Lupton, Petroula Proitsi, Makrina Danillidou, Magda Tsolaki, Gillian Hamilton, Richard Wroe, Megan Pritchard, Kathryn Lord, Belinda M Martin, Iwona Kloszewska, Hilkka Soininen, Patrizia Mecocci, Bruno Vellas, Denise Harold, Paul Hollingworth, Simon Lovestone, John F Powell   +16 more
doaj   +1 more source

Natural Products Targeting Notch Signaling in Cancer: Mechanistic Insights and Food‐Based Chemoprevention Potential

Food Frontiers, Volume 7, Issue 1, January 2026.
The Notch signaling pathway plays a dual role in cancer, acting as both a tumor promoter and suppressor depending on cellular context. This review highlights how natural products modulate Notch signaling to inhibit tumor initiation, progression, angiogenesis, and cancer stem cell maintenance.
Rabab Fatima, Parteek Prasher, Mousmee Sharma, Dietrich Büsselberg, Gabriela Figueroa‐González, Octavio Daniel Reyes‐Hernández, Edgar Yebrán Villegas‐Vázquez, Hernán Cortés, Gerardo Leyva‐Gómez, Jesús Herrera‐Bravo, Solomon Habtemariam, Javad Sharifi‐Rad, Monica Butnariu, Cristian Berar, Angela Caunii, William C. Cho   +15 more
wiley   +1 more source

Adeno-associated virus-mediated brain delivery of 5-lipoxygenase modulates the AD-like phenotype of APP mice

Molecular Neurodegeneration, 2012
Background The 5-lipoxygenase (5LO) enzymatic pathway is widely distributed within the central nervous system. Previous works showed that this protein is up-regulated in Alzheimer's disease (AD), and that its genetic absence results in a reduction of ...
Chu Jin, Giannopoulos Phillip F, Ceballos-Diaz Carolina, Golde Todd E, Pratico Domenico   +4 more
doaj   +1 more source

Amyloid Beta in Alzheimer's Disease: Mechanisms, Biomarker Potential, and Therapeutic Targets

CNS Neuroscience &Therapeutics, Volume 31, Issue 12, December 2025.
The limited clinical efficacy of anti‐Aβ antibodies has challenged the Aβ hypothesis, compelling the integration of key mechanisms—including neuroinflammation, mitochondrial dysfunction, oxidative stress, and post‐translational modifications of Aβ—into a revised model of Alzheimer's disease.
Shamseddin Ahmadi, Shiler Khaledi, Kimia Ahmadi, Kambiz Hassanzadeh   +3 more
wiley   +1 more source

Super-resolution microscopy reveals majorly mono- and dimeric presenilin1/γ-secretase at the cell surface

eLife, 2020
γ-Secretase is a multi-subunit enzyme whose aberrant activity is associated with Alzheimer’s disease and cancer. While its structure is atomically resolved, γ-secretase localization in the membrane in situ relies mostly on biochemical data.
Abril Angélica Escamilla-Ayala, Ragna Sannerud, Magali Mondin, Karin Poersch, Wendy Vermeire, Laura Paparelli, Caroline Berlage, Marcelle Koenig, Lucia Chavez-Gutierrez, Maximilian H Ulbrich, Sebastian Munck, Hideaki Mizuno, Wim Annaert   +12 more
doaj   +1 more source

Downregulating Notch counteracts KrasG12D-induced ERK activation and oxidative phosphorylation in myeloproliferative neoplasm. [PDF]

, 2019
The Notch signaling pathway contributes to the pathogenesis of a wide spectrum of human cancers, including hematopoietic malignancies. Its functions are highly dependent on the specific cellular context. Gain-of-function NOTCH1 mutations are prevalent in
Chang, Yuan-I, Hofmann, Inga, Kong, Guangyao, Letson, Christopher, Liu, Yangang, Loh, Mignon, Padron, Eric, Pear, Warren S, Qian, Shuiming, Rajagopalan, Adhithi, Ranheim, Erik A, Stieglitz, Elliot, Wen, Zhi, Yang, David, You, Xiaona, Zhang, Jing, Zhang, Jingfang, Zhang, Xinmin, Zhong, Xuehua, Zhou, Lan, Zhou, Yun   +20 more
core   +1 more source

Protein O‐GlcNAcylation in Health and Diseases

MedComm, Volume 6, Issue 12, December 2025.
We first introduced the beneficial effects of normal protein O‐GlcNAcylation on health, impacting biological processes such as gene expression, cell cycle progression, metabolism, and signal transduction. Next, we described the role of abnormal protein O‐GlcNAcylation in the development and progression of diseases, including neurodegenerative diseases,
Zhihong Ran, Chuanbao Chen, Jingfeng Ou, Guanyi Wu, Chao Yang, Xiaoyou Liu   +5 more
wiley   +1 more source

Notch Cleavage: Nicastrin Helps Presenilin Make the Final Cut [PDF]

Current Biology, 2002
Presenilin is thought to be the proteolytic component of gamma-secretase, responsible for the intramembranous cleavage of substrates that include the activated Notch receptor. Recent studies have identified the novel protein Nicastrin as another essential component of the Presenilin/gamma-secretase complex.
openaire   +2 more sources