Results 51 to 60 of about 32,791,583 (267)

A gastrointestinal stromal tumor (GIST) masquerading as an ovarian mass [PDF]

open access: yes, 2004
Background Malignant gastrointestinal stromal tumors (GIST) are rare mesenchymal tumors originating in the wall of the gastrointestinal tract. Myogenic gastrointestinal stromal tumor, a distinctive morphologic variant is characterized by an unusually ...
CARLOMAGNO, Giorgio   +3 more
core   +1 more source

Conformational Switching Mechanisms Underlying the Activation of Stromal Interaction Molecule 1 (STIM1) [PDF]

open access: yesBiophysical Journal, 2013
Physiological Ca2+ signalling in T lymphocytes and various other mammalian cells depends on the STIM-ORAI pathway of store-operated Ca2+ entry. STIM1 and STIM2 are Ca2+ sensors located in the endoplasmic reticulum (ER) membrane, with ER-luminal domains that monitor cellular Ca2+ stores and cytoplasmic domains that gate ORAI channels in the plasma ...
Zhou, Yubin   +5 more
openaire   +1 more source

Munc 18-1 Protein Molecules Move between Membrane Molecular Depots Distinct from Vesicle Docking Sites [PDF]

open access: yes, 2013
Four evolutionarily conserved proteins are required for mammalian regulated exocytosis: three SNARE proteins, syntaxin, SNAP-25, and synaptobrevin, and the SM protein, Munc18-1. Here, using single-molecule imaging, we measured the spatial distribution of
Rickman, Colin   +9 more
core   +1 more source

STIM1 Ca2+ Sensor Control of L-type Ca2+-Channel-Dependent Dendritic Spine Structural Plasticity and Nuclear Signaling

open access: yesCell Reports, 2017
Summary: Potentiation of synaptic strength relies on postsynaptic Ca2+ signals, modification of dendritic spine structure, and changes in gene expression.
Philip J. Dittmer   +3 more
doaj   +1 more source

Highlighting the Multifaceted Role of Orai1 N-Terminal- and Loop Regions for Proper CRAC Channel Functions

open access: yesCells, 2022
Orai1, the Ca2+-selective pore in the plasma membrane, is one of the key components of the Ca2+release-activated Ca2+ (CRAC) channel complex. Activated by the Ca2+ sensor in the endoplasmic reticulum (ER) membrane, stromal interaction molecule 1 (STIM1),
Christina Humer   +2 more
doaj   +1 more source

Hydrogen peroxide disrupts the regulatory pathway of saliva secretion in two salivary acinar rat cell lines

open access: yesFrontiers in Molecular Biosciences
BackgroundSecretion of saliva is controlled by autonomic nerve signals via regulation of Ca2+-dependent ion transport across acinar cell membranes. Oxidative stress may affect this process, leading to a decrease in saliva production.
Golnaz Golnarnik   +3 more
doaj   +1 more source

Chlamydia trachomatis suppresses host cell store-operated Ca2+ entry and inhibits NFAT/calcineurin signaling

open access: yesScientific Reports, 2022
The obligate intracellular bacterium, Chlamydia trachomatis, replicates within a parasitophorous vacuole termed an inclusion. During development, host proteins critical for regulating intracellular calcium (Ca2+) homeostasis interact with the inclusion ...
Nicholas B. Chamberlain   +2 more
doaj   +1 more source

Junctional adhesion molecule (JAM)-C deficient C57BL/6 mice develop a severe hydrocephalus [PDF]

open access: yes, 2012
The junctional adhesion molecule (JAM)-C is a widely expressed adhesion molecule regulating cell adhesion, cell polarity and inflammation. JAM-C expression and function in the central nervous system (CNS) has been poorly characterized to date.
Michel Mittelbronn   +27 more
core   +3 more sources

Correlation of clinical features and genetic profiles of stromal interaction molecule 1 (STIM1) in colorectal cancers. [PDF]

open access: yesOncotarget, 2015
STIM1 overexpression has been observed in a portion of colorectal cancer (CRC) patients and associated with cancer cell invasion and migration. To characterize the distinctive expression profiles associated with stromal interaction molecule 1 (STIM1) overexpression/low-expression between CRC subtypes, and further assess the divergence transcription ...
Wong HS, Chang WC.
europepmc   +4 more sources

Endometrial stromal cells of women with recurrent miscarriage fail to discriminate between high- and low-quality human embryos [PDF]

open access: yes, 2012
Background The aetiology of recurrent miscarriage (RM) remains largely unexplained. Women with RM have a shorter time to pregnancy interval than normally fertile women, which may be due to more frequent implantation of non-viable embryos.
Weimar, Charlotte H. E.   +29 more
core   +2 more sources

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