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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.clim.2017.03.014
|2 doi
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|a pubmed24n1436.xml
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|a (DE-627)NLM270770291
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|a (NLM)28389388
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|a (PII)S1521-6616(16)30620-9
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|a DE-627
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|e rakwb
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|a eng
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|a Tanner, Mark R
|e verfasserin
|4 aut
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|a Prolonged immunomodulation in inflammatory arthritis using the selective Kv1.3 channel blocker HsTX1[R14A] and its PEGylated analog
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 29.08.2017
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|a Date Revised 10.06.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier Inc. All rights reserved.
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|a Effector memory T lymphocytes (TEM cells) that lack expression of CCR7 are major drivers of inflammation in a number of autoimmune diseases, including multiple sclerosis and rheumatoid arthritis. The Kv1.3 potassium channel is a key regulator of CCR7- TEM cell activation. Blocking Kv1.3 inhibits TEM cell activation and attenuates inflammation in autoimmunity, and as such, Kv1.3 has emerged as a promising target for the treatment of TEM cell-mediated autoimmune diseases. The scorpion venom-derived peptide HsTX1 and its analog HsTX1[R14A] are potent Kv1.3 blockers and HsTX1[R14A] is selective for Kv1.3 over closely-related Kv1 channels. PEGylation of HsTX1[R14A] to create a Kv1.3 blocker with a long circulating half-life reduced its affinity but not its selectivity for Kv1.3, dramatically reduced its adsorption to inert surfaces, and enhanced its circulating half-life in rats. PEG-HsTX1[R14A] is equipotent to HsTX1[R14A] in preferential inhibition of human and rat CCR7- TEM cell proliferation, leaving CCR7+ naïve and central memory T cells able to proliferate. It reduced inflammation in an active delayed-type hypersensitivity model and in the pristane-induced arthritis (PIA) model of rheumatoid arthritis (RA). Importantly, a single subcutaneous dose of PEG-HsTX1[R14A] reduced inflammation in PIA for a longer period of time than the non-PEGylated HsTX1[R14A]. Together, these data indicate that HsTX1[R14A] and PEG-HsTX1[R14A] are effective in a model of RA and are therefore potential therapeutics for TEM cell-mediated autoimmune diseases. PEG-HsTX1[R14A] has the additional advantages of reduced non-specific adsorption to inert surfaces and enhanced circulating half-life
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|a Journal Article
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|a Disulfide rich peptide
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|a Effector memory T lymphocyte
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|a Immunomodulation
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|a KCNA3
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|a PEGylated Kv1.3 blocker
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|a Voltage-gated channel
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|a Allergens
|2 NLM
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|a Kv1.3 Potassium Channel
|2 NLM
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|a Peptides
|2 NLM
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|a Potassium Channel Blockers
|2 NLM
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|a Scorpion Venoms
|2 NLM
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|a TX1 toxin, Heterometrus spinnifer
|2 NLM
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|a Terpenes
|2 NLM
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|a pristane
|2 NLM
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|a 26HZV48DT1
|2 NLM
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|a Polyethylene Glycols
|2 NLM
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|a 3WJQ0SDW1A
|2 NLM
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|a Ovalbumin
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|a 9006-59-1
|2 NLM
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|a Tajhya, Rajeev B
|e verfasserin
|4 aut
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|a Huq, Redwan
|e verfasserin
|4 aut
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|a Gehrmann, Elizabeth J
|e verfasserin
|4 aut
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|a Rodarte, Kathia E
|e verfasserin
|4 aut
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|a Atik, Mustafa A
|e verfasserin
|4 aut
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|a Norton, Raymond S
|e verfasserin
|4 aut
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|a Pennington, Michael W
|e verfasserin
|4 aut
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|a Beeton, Christine
|e verfasserin
|4 aut
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|i Enthalten in
|t Clinical immunology (Orlando, Fla.)
|d 1999
|g 180(2017) vom: 15. Juli, Seite 45-57
|w (DE-627)NLM098196855
|x 1521-7035
|7 nnns
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|g volume:180
|g year:2017
|g day:15
|g month:07
|g pages:45-57
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|u http://dx.doi.org/10.1016/j.clim.2017.03.014
|3 Volltext
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|a AR
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|d 180
|j 2017
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|h 45-57
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