Results 21 to 30 of about 26,870 (178)

Inhibition of calpain prevents manganese-induced cell injury and alpha-synuclein oligomerization in organotypic brain slice cultures. [PDF]

open access: yesPLoS ONE, 2015
Overexposure to manganese has been known to promote alpha-synuclein oligomerization and enhance cellular toxicity. However, the exact mechanism of Mn-induced alpha-synuclein oligomerization is unclear.
Bin Xu   +5 more
doaj   +1 more source

Calpain 8/nCL-2 and calpain 9/nCL-4 constitute an active protease complex, G-calpain, involved in gastric mucosal defense. [PDF]

open access: yesPLoS Genetics, 2010
Calpains constitute a superfamily of Ca2+-dependent cysteine proteases, indispensable for various cellular processes. Among the 15 mammalian calpains, calpain 8/nCL-2 and calpain 9/nCL-4 are predominantly expressed in the gastrointestinal tract and are ...
Shoji Hata   +7 more
doaj   +1 more source

Calpain Activity Is Generally Elevated during Transformation but Has Oncogene-Specific Biological Functions

open access: yesNeoplasia: An International Journal for Oncology Research, 2004
Several oncogene and tumor-suppressor gene products are known substrates for the calpain family of cysteine proteases, and calpain is required for transformation by v-src and tumor invasion.
N.O. Carragher, B.D. Fonseca, M.C. Frame
doaj   +1 more source

M-Calpain Activation Facilitates Seizure Induced KCC2 Down Regulation

open access: yesFrontiers in Molecular Neuroscience, 2018
Potassium chloride co-transporter 2 (KCC2), a major chloride transporter that maintains GABAA receptor inhibition in mature mammalian neurons, is down-regulated in the hippocampus during epileptogenesis.
Li Wan   +6 more
doaj   +1 more source

The ERG1a potassium channel increases basal intracellular calcium concentration and calpain activity in skeletal muscle cells

open access: yesSkeletal Muscle, 2020
Background Skeletal muscle atrophy is the net loss of muscle mass that results from an imbalance in protein synthesis and protein degradation. It occurs in response to several stimuli including disease, injury, starvation, and normal aging.
Clayton Whitmore   +11 more
doaj   +1 more source

Interaction between calpain-1 and HSP90: new insights into the regulation of localization and activity of the protease. [PDF]

open access: yesPLoS ONE, 2015
Here we demonstrate that heat shock protein 90 (HSP90) interacts with calpain-1, but not with calpain-2, and forms a discrete complex in which the protease maintains its catalytic activity, although with a lower affinity for Ca2+.
Monica Averna   +7 more
doaj   +1 more source

Activation of Calpain Contributes to Mechanical Ventilation-Induced Depression of Protein Synthesis in Diaphragm Muscle

open access: yesCells, 2022
Mechanical ventilation (MV) is a clinical tool that provides respiratory support to patients unable to maintain adequate alveolar ventilation on their own.
Hayden W. Hyatt   +3 more
doaj   +1 more source

Tetrandrine alleviates podocyte injury via calcium-dependent calpain-1 signaling blockade

open access: yesBMC Complementary Medicine and Therapies, 2021
Background Podocytes have become a crucial target for interventions in proteinuric kidney diseases. Many studies have reported that overexpression of transient receptor potential cation channel protein 6 (TRPC6) in podocyte injury upregulates ...
Yin Ding   +5 more
doaj   +1 more source

Proteolysis of mitochondrial calpain-13 in cerebral ischemia-reperfusion injury

open access: yesBiochemistry and Biophysics Reports
Calpains are calcium-dependent cysteine proteases activated by intracellular Ca2+. Although calpains mainly exist in the cytosol, calpain-13 is present in the mitochondria in mouse brains; however, the enzymatic properties and physiological functions of ...
Yusaku Chukai   +5 more
doaj   +1 more source

Precise Prediction of Calpain Cleavage Sites and Their Aberrance Caused by Mutations in Cancer

open access: yesFrontiers in Genetics, 2019
As a widespread post-translational modification of proteins, calpain-mediated cleavage regulates a broad range of cellular processes, including proliferation, differentiation, cytoskeletal reorganization, and apoptosis.
Ze-Xian Liu   +10 more
doaj   +1 more source

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