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cathepsin d

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https://www.readbyqxmd.com/read/28526399/evaluation-of-the-effectiveness-of-chronic-antidepressant-drug-treatments-in-the-hippocampal-mitochondria-a-proteomic-study-in-an-animal-model-of-depression
#1
Katarzyna Głombik, Aneta Stachowicz, Ewa Trojan, Rafał Olszanecki, Joanna Ślusarczyk, Maciej Suski, Katarzyna Chamera, Bogusława Budziszewska, Władysław Lasoń, Agnieszka Basta-Kaim
Several lines of evidence indicate that adverse experience in early life may be a triggering factor for disturbances in the brain mitochondrial proteins and lead to the development of depression in adulthood. On the other hand, little is known about the impact of chronic administration of various antidepressant drugs on the brain mitochondria, as a target for the pharmacotherapy of depression. The purpose of our study was to compare the impact of chronic treatment with two antidepressant drugs with different mechanisms of action, a tricyclic antidepressant (TCA), imipramine, and an antidepressant of the selective serotonin reuptake inhibitor (SSRI) class, fluoxetine, on the mitochondria-enriched subproteome profile in the hippocampus of 3-month-old male rats following a prenatal stress procedure (an animal model of depression)...
May 16, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28517962/inhibition-of-the-continuum-of-radiation-induced-normal-tissue-injury-by-a-redox-active-mn-porphyrin
#2
Samuel R Birer, Chen-Ting Lee, Kingshuk Roy Choudhury, Kenneth H Young, Ivan Spasojevic, Ines Batinic-Haberle, James D Crapo, Mark W Dewhirst, Kathleen A Ashcraft
Normal tissue damage after head and neck radiotherapy involves a continuum of pathologic events to the mucosa, tongue and salivary glands. We examined the radioprotective effects of MnBuOE, a redox-active manganese porphyrin, at three stages of normal tissue damage: immediate (leukocyte endothelial cell [L/E] interactions), early (mucositis) and late (xerostomia and fibrosis) after treatment. In this study, mice received 0 or 9 Gy irradiation to the oral cavity and salivary glands ± MnBuOE treatment. Changes in leukocyte-endothelial cell interactions were measured 24 h postirradiation...
May 18, 2017: Radiation Research
https://www.readbyqxmd.com/read/28505110/green-tea-polyphenols-mimicking-the-effects-of-dietary-restriction-ameliorate-high-fat-diet-induced-kidney-injury-via-regulating-autophagy-flux
#3
Xiao Xie, Weijie Yi, Piwei Zhang, Nannan Wu, Qiaoqiao Yan, Hui Yang, Chong Tian, Siyun Xiang, Miying Du, Eskedar Getachew Assefa, Xuezhi Zuo, Chenjiang Ying
Epidemiological and experimental studies reveal that Western dietary patterns contribute to chronic kidney disease, whereas dietary restriction (DR) or dietary polyphenols such as green tea polyphenols (GTPs) can ameliorate the progression of kidney injury. This study aimed to investigate the renal protective effects of GTPs and explore the underlying mechanisms. Sixty Wistar rats were randomly divided into 6 groups: standard diet (STD), DR, high-fat diet (HFD), and three diets plus 200 mg/kg(bw)/day GTPs, respectively...
May 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28502476/purkinje-cells-are-more-vulnerable-to-the-specific-depletion-of-cathepsin-d-than-to-that-of-atg7
#4
Masato Koike, Masahiro Shibata, Takehiko Sunabori, Junji Yamaguchi, Kenji Sakimura, Masaaki Komatsu, Keiji Tanaka, Yasuo Uchiyama
Neurologic phenotypes of cathepsin D (CTSD)-deficient mice, a murine model of neuronal ceroid lipofuscinoses, indicate the importance of CTSD for the maintenance of metabolism in central nervous system neurons. To further understand the role of CTSD in central nervous system neurons, we generated mice with a CTSD deficiency specifically in the Purkinje cells (PCs) (CTSD(Flox/Flox);GRID2-Cre) and compared their phenotypes with those of PC-selective Atg7-deficient (Atg7(Flox/Flox);GRID2-Cre) mice. In both strains of mice, PCs underwent degeneration, but the CTSD-deficient PCs disappeared more rapidly than their Atg7-deficient counterparts...
May 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28499850/skeletal-muscle-protease-activities-in-the-early-growth-and-development-of-wild-atlantic-salmon-salmo-salar-l
#5
Liudmila A Lysenko, Nadezda P Kantserova, Elena I Kaivarainen, Marina Yu Krupnova, Nina N Nemova
Growth-related dynamics of intracellular protease activities in four year classes of the Atlantic salmon (Salmo salar L. 1758) parr and smolts inhabiting salmon rivers of northwestern Russia (the White Sea basin) were studied. Cathepsin B, cathepsin D, proteasome, and calpain activities in the skeletal muscles of salmon were assessed to investigate their relative contribution to the total protein degradation as well as to young fish growth process. It was confirmed that calpain activity dominate in salmon muscles while proteasome plays a minor role, in contrast to terrestrial vertebrates...
May 9, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28493068/cathepsin-s-increases-tau-oligomer-formation-through-limited-cleavage-but-only-il-6-not-cathespin-s-serum-levels-correlate-with-disease-severity-in-the-neurodegenerative-tauopathy-progressive-supranuclear-palsy
#6
Georg Nübling, M Schuberth, K Feldmer, A Giese, L M Holdt, D Teupser, S Lorenzl
Limited cleavage promotes the aggregation propensity of protein tau in neurodegenerative tauopathies. Cathepsin S (CatS) is overexpressed in brains of patients suffering from tauopathies such as Alzheimer's disease (AD). Furthermore, CatS serum levels correlate with survival in the elderly. The current study investigates whether limited cleavage by CatS promotes tau aggregation, and whether CatS serum levels may correlate with disease severity in tauopathies. Oligomer formation of fluorescently labeled protein tau was monitored by single particle fluorescence spectroscopy after coincubation with CatS...
May 10, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28482048/neither-creatinine-nor-cystatin-c-estimated-glomerular-filtration-rate-is-optimal-in-oncology-patients-treated-with-targeted-agents
#7
Tijl Vermassen, Karen Geboes, Marc De Man, Stéphanie Laurent, Elsie Decoene, Nicolaas Lumen, Joris Delanghe, Sylvie Rottey
Background.: In the last decade, there has been an increase in the use of anti-angiogenic drugs as treatment for metastatic malignancies. However, use of these targeted therapies could induce both glomerular and tubular damage. Also during targeted therapy, the lysosomal protease cathepsin D is released from the tumour, which is inhibited by the protease inhibitor cystatin C. The aim of this study is to determine if use of cystatin C-estimated glomerular filtration rate (eGFR) is applicable to a patient cohort treated with targeted agents...
May 7, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28476637/the-critical-role-of-nramp1-in-degrading-%C3%AE-synuclein-oligomers-in-microglia-under-iron-overload-condition
#8
Kuo-Chen Wu, Horng-Huei Liou, Yu-Han Kao, Chih-Yu Lee, Chun-Jung Lin
Oligomeric α-synuclein is a key mediator in the pathogenesis of Parkinson's disease (PD) and is mainly cleared by autophagy-lysosomal pathway, whose dysfunction results in the accumulation and cell-to-cell transmission of α-synuclein. In this study, concomitant with the accumulation of iron and oligomeric α-synuclein, higher expression of a lysosomal iron transporter, natural resistance-associated macrophage protein-1 (Nramp1), was observed in microglia in post-mortem striatum of sporadic PD patients. Using Nramp1-deficient macrophage (RAW264...
May 2, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28470743/correlative-light-and-electron-microscopy-reveals-discrepancy-between-gold-and-fluorescence-labelling
#9
D M VAN Elsland, E Bos, J B Pawlak, H S Overkleeft, A J Koster, S I VAN Kasteren
Electron microscopy (EM) is traditionally employed as a follow-up to fluorescence microscopy (FM) to resolve the cellular ultrastructures wherein fluorescently labelled biomolecules reside. In order to translate the information derived from FM studies to EM analysis, biomolecules of interest must be identified in a manner compatible with EM. Although fluorescent signals can serve this purpose when FM is combined with EM in correlative light and electron microscopy (CLEM), the traditional immunogold labelling remains commonly used in this context...
May 4, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28468961/urine-ras-components-in-mice-and-people-with-type-1-diabetes-and-chronic-kidney-disease
#10
Jan Wysocki, Anne Goodling, Mar Burgaya, Kathryn Whitlock, John Ruzinski, Daniel Batlle, Maryam Afkarian
Pathways implicated in diabetic kidney disease (DKD) are largely derived from animal models. To examine if renin-angiotensin system (RAS) changes in humans are concordant with rodent models, we measured concentration of angiotensinogen (AOG), cathepsin D(CTSD), angiotensin converting enzyme(ACE), ACE2 and enzymatic activities of ACE, ACE2 and aminopeptidase-A in FVB mice 13-20 weeks after streptozotocin (n=9) or vehicle (n=15) and people with longstanding type 1 diabetes, with (n=37) or without (n=81) DKD. In streptozotocin-treated mice, urine AOG and CTSD were 10...
May 3, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28465586/oxidation-of-protein-bound-methionine-in-photofrin-photodynamic-therapy-treated-human-tumor-cells-explored-by-methionine-containing-peptide-enrichment-and-quantitative-proteomics-approach
#11
Ya-Ju Hsieh, Kun-Yi Chien, I-Fang Yang, I-Neng Lee, Chia-Chun Wu, Tung-Yung Huang, Jau-Song Yu
In Photofrin-mediated photodynamic therapy (PDT), cell fate can be modulated by the subcellular location of Photofrin. PDT triggers oxidative damage to target cells, including the methionine (Met) oxidation of proteins. Here, we developed a new Met-containing peptide enrichment protocol combined with SILAC-based quantitative proteomics, and used this approach to explore the global Met oxidation changes of proteins in PDT-treated epidermoid carcinoma A431 cells preloaded with Photofrin at the plasma membrane, ER/Golgi, or ubiquitously...
May 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28453791/progranulin-functions-as-a-cathepsin-d-chaperone-to-stimulate-axonal-outgrowth-in-vivo
#12
Sander Beel, Matthieu Moisse, Markus Damme, Louis De Muynck, Wim Robberecht, Ludo Van Den Bosch, Paul Saftig, Philip Van Damme
Loss of function mutations in progranulin (GRN) cause frontotemporal dementia, but how GRN haploinsufficiency causes neuronal dysfunction remains unclear. We previously showed that GRN is neurotrophic in vitro. Here, we used an in vivo axonal outgrowth system and observed a delayed recovery in GRN-/- mice after facial nerve injury. This deficit was rescued by reintroduction of human GRN and relied on its C-terminus and on neuronal GRN production. Transcriptome analysis of the facial motor nucleus post injury identified cathepsin D (CTSD) as the most upregulated gene...
April 26, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28433567/ppar-%C3%AE-agonist-rosiglitazone-reduces-autophagy-and-promotes-functional-recovery-in-experimental-traumaticspinal-cord-injury
#13
Hongpeng Li, Qin Zhang, Xiaohui Yang, Liping Wang
BACKGROUND: Secondary damage is often more important in determining the functional outcome and provides a practical target for therapeutic intervention. Rosiglitazone (ROSG) is a potent PPAR-γ agonist and has been shown to induce neuroprotection in animal models of spinal cord injury (SCI). However, it is still unclear whether this PPAR-γ agonist can mediate neuronal autophagy after SCI. METHODS: SCI was induced by application of vascular clips (force of 24g) to the dura via a four-level T5-T8 laminectomy...
April 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28429406/haplodeficiency-of-cathepsin-d-does-not-affect-cerebral-amyloidosis-and-autophagy-in-app-ps1-transgenic-mice
#14
Shaowu Cheng, Willayat Y Wani, David A Hottman, Angela Jeong, Dongfeng Cao, Kyle J LeBlanc, Paul Saftig, Jianhua Zhang, Ling Li
Autophagy and lysosomal function are important for protein homeostasis and their dysfunction have been associated with Alzheimer's disease (AD). Increased immunoreactivities of an important lysosomal protease, cathepsin D (Cat D), are evident in amyloid plaques and neurons in patients with AD. The current study tests the hypothesis that deleting one allele of the cathepsin D gene (Ctsd) impacts cerebral β-amyloidosis in APPsw/PS1dE9 (APP/PS1) double transgenic mice. Despite a significant 38% decrease of Cat D level in APP/PS1/Ctsd+/- compared to APP/PS1/Ctsd+/+ mice, no changes in steady state levels and deposition of Aβ were found in the brain...
April 21, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28424277/janus-kinase-2-regulates-transcription-factor-eb-expression-and-autophagy-completion-in-glomerular-podocytes
#15
Tamadher A Alghamdi, Syamantak Majumder, Karina Thieme, Sri N Batchu, Kathryn E White, Youan Liu, Angela S Brijmohan, Bridgit B Bowskill, Suzanne L Advani, Minna Woo, Andrew Advani
The nonreceptor kinase Janus kinase 2 (JAK2) has garnered attention as a promising therapeutic target for the treatment of CKD. However, being ubiquitously expressed in the adult, JAK2 is also likely to be necessary for normal organ function. Here, we investigated the phenotypic effects of JAK2 deficiency. Mice in which JAK2 had been deleted from podocytes exhibited an elevation in urine albumin excretion that was accompanied by increased podocyte autophagosome fractional volume and p62 aggregation, which are indicative of impaired autophagy completion...
April 19, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28423701/identification-of-protein-clusters-predictive-of-tumor-response-in-rectal-cancer-patients-receiving-neoadjuvant-chemo-radiotherapy
#16
Ombretta Repetto, Valli De Re, Antonino De Paoli, Claudio Belluco, Lara Alessandrini, Vincenzo Canzonieri, Renato Cannizzaro
Preoperative neoadjuvant chemoradiotherapy (nCRT) is the gold standard in locally advanced rectal cancer, only 10-30% of patients achieving benefits. Currently, there is a need of a reliable selection of markers for the identification of poor or non-responders prior to therapy. In this work, we compared protein profiles before therapy of patients differing in their responses to nCRT to find novel predictive markers of response to therapy. Patients were grouped into 3 groups according to their tumor regression grading (TRG) after surgery: 'TRG 1-2', good responders, 'TRG 3' and 'TRG 4', poor responders...
April 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423550/quantitative-proteomic-analysis-of-gastric-cancer-tissue-reveals-novel-proteins-in-platelet-derived-growth-factor-b-signaling-pathway
#17
Fang Liu, Yuan Zhang, Tingting Men, Xingyue Jiang, Chunhua Yang, He Li, Xiaodan Wei, Dong Yan, Gangming Feng, Jianke Yang, Jonas Bergquist, Bin Wang, Wenguo Jiang, Jia Mi, Geng Tian
Gastric cancer is one of the most common cancers in Asian countries. Searching for reliable biomarkers involving the development of gastric cancer is important for clinical practice. Quantitative proteomics has become an important method contributed to the discovery of novel diagnostic or therapeutic targets for the management of cancer. Here, we identified differently expressed proteins in gastric cancer and normal gastric tissues by using the high resolution mass spectrometer. Among the total of 2280 identified proteins, 87 were differentially expressed between gastric cancer and normal gastric tissues...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28405187/identification-of-cerebral-metal-ion-imbalance-in-the-brain-of-aging-octodon-degus
#18
Nady Braidy, Anne Poljak, Chris Marjo, Helen Rutlidge, Anne Rich, Bat-Erdene Jugder, Tharusha Jayasena, Nibaldo C Inestrosa, Perminder S Sachdev
The accumulation of redox-active transition metals in the brain and metal dyshomeostasis are thought to be associated with the etiology and pathogenesis of several neurodegenerative diseases, and Alzheimer's disease (AD) in particular. As well, distinct biometal imaging and role of metal uptake transporters are central to understanding AD pathogenesis and aging but remain elusive, due inappropriate detection methods. We therefore hypothesized that Octodon degus develop neuropathological abnormalities in the distribution of redox active biometals, and this effect may be due to alterations in the expression of lysosomal protein, major Fe/Cu transporters, and selected Zn transporters (ZnTs and ZIPs)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28402938/cathepsins-in-digestive-cancers
#19
REVIEW
Siyuan Chen, Hui Dong, Shiming Yang, Hong Guo
Cathepsins are lysosomal peptidases belonging to the papain family, and based on their catalytic sites, these enzymes can be divided into serine, cysteine and aspartic proteases. The studies conducted to date have identified, 15 types of cathepsins that are widely distributed in intracellular and extracellular spaces. These proteases participate in various pathological activities, including the occurrence and development of human cancers. Several recent studies suggest that cathepsins, particularly cathepsins B, D, E and L, contribute to digestive tumorigenesis...
March 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28390177/role-of-the-lysosomal-membrane-protein-cln3-in-the-regulation-of-cathepsin-d-activity
#20
Jaime Cárcel-Trullols, Attila D Kovács, David A Pearce
Among Neuronal Ceroid Lipofuscinoses (NCLs), which are childhood fatal neurodegenerative disorders, the juvenile onset form (JNCL) is the most common. JNCL is caused by recessive mutations in the CLN3 gene. CLN3 encodes a lysosomal/endosomal transmembrane protein but its precise function is not completely known. We have previously reported that in baby hamster kidney (BHK) cells stably expressing myc-tagged human CLN3 (myc-CLN3), hyperosmotic conditions drastically increased myc-CLN3 mRNA and protein expression...
April 8, 2017: Journal of Cellular Biochemistry
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