Results 121 to 130 of about 5,972 (292)

Phosphorylation of β-catenin results in lack of β-catenin signaling in melanoma

open access: yesInternational Journal of Oncology, 2011
The Wnt/β-catenin pathway is involved in differentiation events during embryonic development and is further described as a pathway often participating in tumor formation when aberrantly activated. Molecular studies concentrating on colorectal cancer revealed mutations of apc, ctnnbi, btrc and tcf-4 genes which mimic Wnt stimulation.
Silke, Kuphal, Anja Katrin, Bosserhoff
openaire   +3 more sources

Immunohistochemical detection of E-cadherin, alpha- and beta-catenins in papillary thyroid carcinoma

open access: yes, 2002
E-cadherin and catenins play a major role in neoplastic cell behavior as a suppressor of invasion and/or metastasis. The aim of this study was to determine E-cadherin, alpha-catenin and beta-catenin expressions in papillary thyroid carcinoma (PTC) and to
Molvalilar, S   +5 more
core   +1 more source

Tumor‐Intrinsic ARHGEF3 Enhances Antitumor Immunity by Promoting T‐Cell Infiltration and Limiting Myeloid Cell‐Mediated Immunosuppression

open access: yesAdvanced Science, EarlyView.
ARHGEF3 is broadly downregulated across human cancers and correlates with patient prognosis. Tumor‐intrinsic ARHGEF3 activates the RHOA–ROCK–PTEN cascade to inhibit AKT signaling, thereby promoting chemokine‐driven T‐cell infiltration and relieving lipid‐mediated myeloid immunosuppression.
Yue Li   +8 more
wiley   +1 more source

Involvement of α- and ß-catenins and E-cadherin in the development of mammary phyllodes tumours

open access: yes, 2012
Aims: Phyllodes tumours (PT) are rare but clinically important fibroepithelial tumours of the breast. beta-Catenin, a key component in Wnt signalling, has been shown to be important in the development of PT.
Tsang, Julia Y.   +9 more
core   +1 more source

Optimized Ex Vivo Human Liver Slice Culture Maintains Extended Viability and Function for Hepatotoxicity Testing

open access: yesAdvanced Science, EarlyView.
An optimized ex vivo human liver slice culture system preserves tissue architecture, hepatocyte function, and immune‐stromal complexity for at least five days. By refining slice thickness, oxygenation, air‐liquid interface, and extracellular matrix support, the platform enables human‐relevant hepatotoxicity testing and mechanistic studies, offering a ...
Huiche Feng   +17 more
wiley   +1 more source

Fosl2 Regulates FSH‐Dependent Follicle Maturation Through Feedback Amplification of FSH/FSHR Signaling

open access: yesAdvanced Science, EarlyView.
This study identifies a FOSL2‐driven positive feedback loop that amplifies FSH/FSHR signaling. During FSH‐dependent follicle maturation, FSH induces Fosl2 expression via the cAMP‐PKA‐CREB cascade. FOSL2 in turn binds the promoters of Fshr and estrogen‐biosynthesis genes to enhance their transcription, thereby increasing Fshr mRNA level and amplifying ...
Hongru Shi   +13 more
wiley   +1 more source

Three novel human sporadic melanoma cell lines: signalling pathways controlled by MC1R, BRAF and beta-catenins

open access: yes, 2013
We studied the behaviour of three novel human sporadic melanoma cell lines (hmel1, hmel9, hmel11), having different degree of malignancy, for cell signalling pathways controlled by MC1R, BRAF,NRAS and beta-catenins.
Zanna P.   +9 more
core  

Aptamer‐Directed Porous DNA Nanocomposite Hydrogel for Active Pulp Preservation: Immunomodulation, Stem Cell Recruitment and Reparative Dentinogenesis

open access: yesAdvanced Science, EarlyView.
This study presents an injectable DNA‐based porous hydrogel integrating catechol motifs and targeting aptamers for pulpitis management. Upon in situ crosslinking, the scaffold actively recruits endogenous dental pulp stem cells, restores redox homeostasis, and modulates immune responses.
Luhui Cai   +9 more
wiley   +1 more source

Light‐Switched Mesenchymal Stem Cells for In Situ Exosome Amplification in Craniofacial Bone Defect Reconstruction

open access: yesAdvanced Science, EarlyView.
Light‐switchable MSCs (MSC‐UCNPs) were constructed by intracellular incorporation of UCNPs. Upon 980 nm irradiation, UCNPs emitted localized ultraviolet light (365 nm), activating the ROS/HEXB/LAMP1 signaling pathway to suppress lysosome–multivesicular body fusion and thereby enhance exosome biogenesis. Embedded within an injectable hydrogel, MSC‐UCNPs
Tingting Wu   +7 more
wiley   +1 more source

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