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Itch protein

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https://www.readbyqxmd.com/read/28299654/roles-of-runx-genes-in-nervous-system-development
#1
Jae Woong Wang, Stefano Stifani
Runt-related (Runx) transcription factors play essential roles during development and adult tissue homeostasis and are responsible for several human diseases. They regulate a variety of biological mechanisms in numerous cell lineages. Recent years have seen significant progress in our understanding of the functions performed by Runx proteins in the developing and postnatal mammalian nervous system. In both central and peripheral nervous systems, Runx1 and Runx3 display remarkably specific expression in mostly non-overlapping groups of postmitotic neurons...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28298321/ubiquitin-e3-ligase-itch-negatively-regulates-osteoblast-function-by-promoting-proteasome-degradation-of-osteogenic-proteins
#2
J Liu, X Li, H Zhang, R Gu, Z Wang, Z Gao, L Xing
OBJECTIVES: Ubiquitin E3 ligase-mediated protein degradation regulates osteoblast function. Itch, an E3 ligase, affects numerous cell functions by regulating ubiquitination and proteasomal degradation of related proteins. However, the Itch-related cellular and molecular mechanisms by which osteoblast differentiation and function are elevated during bone fracture repair are as yet unknown. METHODS: We examined the expression levels of E3 ligases and NF-κB members in callus samples during bone fracture repair by quantitative polymerase chain reaction (qPCR) and the total amount of ubiquitinated proteins by Western blot analysis in wild-type (WT) mice...
March 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28288109/in-silico-design-of-novel-probes-for-the-atypical-opioid-receptor-mrgprx2
#3
Katherine Lansu, Joel Karpiak, Jing Liu, Xi-Ping Huang, John D McCorvy, Wesley K Kroeze, Tao Che, Hiroshi Nagase, Frank I Carroll, Jian Jin, Brian K Shoichet, Bryan L Roth
The primate-exclusive MRGPRX2 G protein-coupled receptor (GPCR) has been suggested to modulate pain and itch. Despite putative peptide and small-molecule MRGPRX2 agonists, selective nanomolar-potency probes have not yet been reported. To identify a MRGPRX2 probe, we first screened 5,695 small molecules and found that many opioid compounds activated MRGPRX2, including (-)- and (+)-morphine, hydrocodone, sinomenine, dextromethorphan, and the prodynorphin-derived peptides dynorphin A, dynorphin B, and α- and β-neoendorphin...
March 13, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28285986/calcium-dependent-regulation-of-protein-ubiquitination-interplay-between-e3-ligases-and-calcium-binding-proteins
#4
REVIEW
Rukmini Mukherjee, Aneesha Das, Saikat Chakrabarti, Oishee Chakrabarti
The ubiquitination status of proteins and intracellular calcium levels are two factors which keep changing inside any living cell. These two events appear to be independent of each other but recent experimental evidences show that ubiquitination of cellular proteins are influenced by calcium, Calmodulin, Calmodulin-dependent kinase II and other proteins of calcium dependent pathways. E3 ligases like Nedd4, SCF complex, APC, GP78 and ITCH are important regulators of calcium mediated processes. A bioinformatics analysis to inspect sequences and interacting partners of 242 candidate E3 ligases show the presence of calcium and/or Calmodulin binding motifs/domains within their sequences...
March 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28263039/sertraline-can-reduce-the-uremic-pruritus-in-hemodialysis-patient-a-double-blind-randomized-clinical-trial-from-southern-iran
#5
Maryam Pakfetrat, Leila Malekmakan, Noushin Hashemi, Taraneh Tadayon
INTRODUCTION: Uremic pruritus is an undesirable complication of end stage renal disease (ESRD). In spite of introduction of many treatments for this complication, it has no certain cure. The aim of this study was to assess sertraline effect on uremic pruritus. METHODS: In the present clinical trial study, we randomly divided our patients into two groups; trial group that received sertraline and control group that consumed placebo. We measured the severity of pruritus by two scoring systems (visual analogue scale and DUO) at the beginning and during the study with a-2-week interval...
March 6, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28235806/molecular-basis-of-interactions-between-sh3-domain-containing-proteins-and-the-proline-rich-region-of-the-ubiquitin-ligase-itch
#6
Guillaume Desrochers, Laurent Cappadocia, Mathieu Lussier-Price, Anh-Tien Ton, Riham Ayoubi, Adrian Serohijos, James G Omichinski, Annie Angers
The ligase Itch plays major roles in signalling pathways by inducing ubiquitylation-dependent degradation of several substrates. Substrate recognition and binding is critical for the regulation of this reaction. Like closely related ligases, Itch can interact with proteins containing a PPxY motif via its WW domains. In addition to these WW domains, Itch possesses a proline-rich region (PRR) that has been shown to interact with several Src Homology 3 (SH3) domain-containing proteins. We have previously established that despite the apparent surface uniformity and conserved fold of SH3 domains, they display different binding mechanisms and affinities for their interaction with the PRR of Itch...
February 24, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28219706/substance-p-activates-mas-related-g-protein-coupled-receptors-to-induce-itch
#7
Ehsan Azimi, Vemuri B Reddy, Paula Juliana Seadi Pereira, Sebastien Talbot, Clifford J Woolf, Ethan A Lerner
BACKGROUND: Substance P (SP) is linked to itch and inflammation through activation of receptors on mast cells and sensory neurons. There is increasing evidence that SP functions through Mas-related G protein-coupled receptors (Mrgprs) in addition to its conventional receptor, neurokinin-1. OBJECTIVE: Because Mrgprs mediate some aspects of inflammation that had been considered mediated by neurokinin-1 receptor (NK-1R), we sought to determine whether itch induced by SP can also be mediated by Mrgprs...
February 20, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28134655/a-central-role-for-r7bp-in-the-regulation-of-itch-sensation
#8
Mritunjay Pandey, Jian-Hua Zhang, Santosh K Mishra, Poorni R Adikaram, Benjamin Harris, John F Kahler, Anna Loshakov, Roxanne Sholevar, Allison Genis, Claire Kittock, Juraj Kabat, Sundar Ganesan, Richard R Neubig, Mark A Hoon, William F Simonds
Itch is a protective sensation producing a desire to scratch. Pathologic itch can be a chronic symptom of illnesses such as uremia, cholestatic liver disease, neuropathies and dermatitis, however current therapeutic options are limited. Many types of cell surface receptors, including those present on cells in the skin, on sensory neurons and on neurons in the spinal cord, have been implicated in itch signaling. The role of G protein signaling in the regulation of pruriception is poorly understood. We identify here 2 G protein signaling components whose mutation impairs itch sensation...
January 27, 2017: Pain
https://www.readbyqxmd.com/read/28130358/inhibition-mediated-by-glycinergic-and-gabaergic-receptors-on-excitatory-neurons-in-mouse-superficial-dorsal-horn-is-location-specific-but-modified-by-inflammation
#9
Tomonori Takazawa, Papiya Choudhury, Chi-Kun Tong, Charles M Conway, Grégory Scherrer, Pamela D Flood, Jun Mukai, Amy B MacDermott
The superficial dorsal horn is the synaptic termination site for many peripheral sensory fibers of the somatosensory system. A wide range of sensory modalities are represented by these fibers, including pain, itch, and temperature. Because the involvement of local inhibition in the dorsal horn, specifically that mediated by the inhibitory amino acids GABA and glycine, is so important in signal processing, we investigated regional inhibitory control of excitatory interneurons under control conditions and peripheral inflammation-induced mechanical allodynia...
March 1, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28127433/fibrocellular-non-specific-interstitial-pneumonia-with-favourable-prognosis-in-clinically-amyopathic-dermatomyositis
#10
Takahiro Yoshizawa, Keishi Sugino, Kazutoshi Shibuya, Toshimasa Uekusa, Sakae Homma
We report the case of a 49-year-old man who experienced dry cough and itching eruption for 2 months. The patient had Gottoron's sign, mechanic's hand, and high levels of serum Krebs von den Lungen-6 and surfactant protein D, but was negative for anti-aminoacyl transfer RNA synthetase antibodies. High-resolution chest computed tomography revealed subpleural band-like or patchy consolidation with predominance in the bilateral lower lobe. Bronchoalveolar lavage fluid showed increased total cell counts with lymphocytosis...
September 2016: Respirology Case Reports
https://www.readbyqxmd.com/read/28127106/comparative-anatomy-of-gastrin-releasing-peptide-pathways-in-the-trigeminal-sensory-system-of-mouse-and-the-asian-house-musk-shrew-suncus-murinus
#11
Keiko Takanami, Kaihei Inoue, Hiroki Mukai, Kei Tamura, Takamichi Jogahara, Sen-Ichi Oda, Mitsuhiro Kawata, Tatsuya Sakamoto, Hirotaka Sakamoto
Gastrin-releasing peptide (GRP) has recently been identified as an itch-signaling molecule in the primary afferents and spinal cord of rodents. However, little information exists on the expression and localization of GRP in the trigeminal somatosensory system other than in rats. We examined the generality of the trigeminal GRP system in mammals using two distinct species, suncus as a model of specialized placental mammals known to have a well-developed trigeminal sensory system and mice as a representative small laboratory animal...
December 28, 2016: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/28110810/biased-opioid-receptor-ligands-gain-without-pain
#12
Ravi Ranjan, Shubhi Pandey, Arun K Shukla
Kappa opioid receptor (κ-OR) agonists are promising therapeutic candidates for pain and itch; however, they also exhibit the adverse effects of sedation and dysphoria. A recent study has demonstrated that a G protein-biased agonist for κ-OR provides effective pain and itch relief without causing sedation or dysphoria, in animal models.
January 16, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28095356/a-systems-pharmacology-perspective-to-decipher-the-mechanism-of-action-of-parangichakkai-chooranam-a-siddha-formulation-for-the-treatment-of-psoriasis
#13
Sudharsana Sundarrajan, Mohanapriya Arumugam
Psoriasis is a chronic relapsing immune mediated disorder of the skin. The disease presents itself with well featured clinical and histological characteristics however the aetiology of the disease still remains obscure. The current systemic therapies aim to eliminate the symptoms of disease rather than offering a complete cure. Parangichakkai chooranam (PC), a Siddha oral herbal formulation has been widely prescribed for the treatment of psoriasis. Though the medication is highly prescribed by the Siddha healers the mechanism of PC for the treatment of psoriasis remains to be elucidated...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28076420/chaperone-mediated-autophagy-protein-bag3-negatively-regulates-ebola-and-marburg-vp40-mediated-egress
#14
Jingjing Liang, Cari A Sagum, Mark T Bedford, Sachdev S Sidhu, Marius Sudol, Ziying Han, Ronald N Harty
Ebola (EBOV) and Marburg (MARV) viruses are members of the Filoviridae family which cause outbreaks of hemorrhagic fever. The filovirus VP40 matrix protein is essential for virus assembly and budding, and its PPxY L-domain motif interacts with WW-domains of specific host proteins, such as Nedd4 and ITCH, to facilitate the late stage of virus-cell separation. To identify additional WW-domain-bearing host proteins that interact with VP40, we used an EBOV PPxY-containing peptide to screen an array of 115 mammalian WW-domain-bearing proteins...
January 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28069324/differences-in-therapeutic-effects-of-topically-applied-corticosteroid-and-tacrolimus-on-atopic-dermatitis-like-symptoms-in-nc-nga-mice
#15
Atsushi Noguchi, Mitsutoshi Tominaga, Nobuaki Takahashi, Hironori Matsuda, Yayoi Kamata, Yoshie Umehara, Kyi Chan Ko, Yasushi Suga, Hideoki Ogawa, Kenji Takamori
BACKGROUND: Topical corticosteroid and calcineurin inhibitor have similar therapeutic benefits in atopic dermatitis (AD), but the differences in therapeutic mechanisms of action of these agents against AD symptoms are not fully understood. OBJECTIVE: This study was performed to examine the different effects of topical betamethasone valerate (BMV), clobetasol propionate (CBP), and tacrolimus (TAC) on itch-related behavior and dermatitis in NC/Nga mice with AD-like symptoms...
April 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28069040/anti-inflammatory-and-immune-regulatory-effects-of-acupuncture-after-craniotomy-study-protocol-for-a-parallel-group-randomized-controlled-trial
#16
Seung-Yeon Cho, Seung-Bo Yang, Hee Sup Shin, Seung Hwan Lee, Jun Seok Koh, Seungwon Kwon, Woo-Sang Jung, Sang-Kwan Moon, Jung-Mi Park, Chang-Nam Ko, Seong-Uk Park
BACKGROUND: Despite recent advances in the medical and surgical fields, complications such as infection, pneumonia, or brain swelling may occur after a craniotomy. In some patients, perioperative antibiotic prophylaxis causes adverse effects such as itching, rash, or digestive conditions. Certain patients still develop infections severe enough to require a repeat operation despite antibiotic prophylaxis. Acupuncture has been used to treat inflammatory conditions, and many basic and clinical studies have provided evidence of its anti-inflammatory and immune regulatory effects...
January 10, 2017: Trials
https://www.readbyqxmd.com/read/28061504/dub3-deubiquitylating-enzymes-regulate-hippo-pathway-activity-by-regulating-the-stability-of-itch-lats-and-amot-proteins
#17
Hung Thanh Nguyen, Jan-Michael Kugler, Stephen M Cohen
The YAP and TAZ transcriptional coactivators promote oncogenic transformation. Elevated YAP/TAZ activity has been documented in human tumors. YAP and TAZ are negatively regulated by the Hippo tumor suppressor pathway. The activity and stability of several Hippo pathway components, including YAP/TAZ, is regulated by ubiquitin mediated protein turnover and several ubiquitin ligase complexes have been implicated in human cancer. However, little is known about the deubiquitylating enzymes that counteract these ubiquitin ligases in regulation of the Hippo pathway...
2017: PloS One
https://www.readbyqxmd.com/read/28049063/activity-of-pericampylus-glaucus-and-periglaucine-a-in-vitro-against-nasopharangeal-carcinoma-and-anti-inflammatory-activity
#18
Fiona Natalia Shipton, Teng-Jin Khoo, Md Shahadat Hossan, Christophe Wiart
ETHNOPHARMACOLOGICAL RELEVANCE: P. glaucus is a climbing plant found across Asia and used in traditional medicine to treat a number of conditions including splenomegaly, fever, cough, laryngitis, pulmonary disease, asthma, headache, hair loss, snake bite, boar bite, factures, boils, tumours, tetanus, rheumatic pain, itches and eclampsia. AIM OF THE STUDY: To test extracts of P. glaucus in a number of bioassays and determine the legitimacy of its traditional use...
December 31, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27993143/marginal-zone-lymphoma-derived-interfollicular-diffuse-large-b-cell-lymphoma-harboring-20q12-chromosomal-deletion-and-missense-mutation-of-birc3-gene-a-case-report
#19
Joseph Hatem, April M Schrank-Hacker, Christopher D Watt, Jennifer J D Morrissette, Adam I Rubin, Ellen J Kim, Sunita D Nasta, Mariusz A Wasik, Agata M Bogusz
BACKGROUND: Diffuse large B-cell lymphoma (DLBCL) typically leads to effacement of the nodal architecture by an infiltrate of malignant cells. Rarely (<1%), DLBCL can present with an interfollicular pattern (DLBCL-IF) preserving the lymphoid follicles. It has been postulated that DLBCL-IF is derived from marginal zone B cells and may represent a large-cell transformation of marginal zone lymphoma (MZL), however no direct evidence has been provided to date. Here we describe a rare case of a diagnostically challenging DLBCL-IF involving a lymph node in a patient with a prior history of lymphadenopathy for several years and MZL involving skin...
December 19, 2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27983625/trp-channels-in-skin-biology-and-pathophysiology
#20
REVIEW
Michael J Caterina, Zixuan Pang
Ion channels of the Transient Receptor Potential (TRP) family mediate the influx of monovalent and/or divalent cations into cells in response to a host of chemical or physical stimuli. In the skin, TRP channels are expressed in many cell types, including keratinocytes, sensory neurons, melanocytes, and immune/inflammatory cells. Within these diverse cell types, TRP channels participate in physiological processes ranging from sensation to skin homeostasis. In addition, there is a growing body of evidence implicating abnormal TRP channel function, as a product of excessive or deficient channel activity, in pathological skin conditions such as chronic pain and itch, dermatitis, vitiligo, alopecia, wound healing, skin carcinogenesis, and skin barrier compromise...
December 14, 2016: Pharmaceuticals
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