Prolonged immunomodulation in inflammatory arthritis using the selective Kv1.3 channel blocker HsTX1[R14A] and its PEGylated analog

Copyright © 2017 Elsevier Inc. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Clinical immunology (Orlando, Fla.). - 1999. - 180(2017) vom: 15. Juli, Seite 45-57
1. Verfasser: Tanner, Mark R (VerfasserIn)
Weitere Verfasser: Tajhya, Rajeev B, Huq, Redwan, Gehrmann, Elizabeth J, Rodarte, Kathia E, Atik, Mustafa A, Norton, Raymond S, Pennington, Michael W, Beeton, Christine
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Clinical immunology (Orlando, Fla.)
Schlagworte:Journal Article Disulfide rich peptide Effector memory T lymphocyte Immunomodulation KCNA3 PEGylated Kv1.3 blocker Voltage-gated channel Allergens Kv1.3 Potassium Channel Peptides mehr... Potassium Channel Blockers Scorpion Venoms TX1 toxin, Heterometrus spinnifer Terpenes pristane 26HZV48DT1 Polyethylene Glycols 3WJQ0SDW1A Ovalbumin 9006-59-1
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100 1 |a Tanner, Mark R  |e verfasserin  |4 aut 
245 1 0 |a Prolonged immunomodulation in inflammatory arthritis using the selective Kv1.3 channel blocker HsTX1[R14A] and its PEGylated analog 
264 1 |c 2017 
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520 |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 
650 4 |a Journal Article 
650 4 |a Disulfide rich peptide 
650 4 |a Effector memory T lymphocyte 
650 4 |a Immunomodulation 
650 4 |a KCNA3 
650 4 |a PEGylated Kv1.3 blocker 
650 4 |a Voltage-gated channel 
650 7 |a Allergens  |2 NLM 
650 7 |a Kv1.3 Potassium Channel  |2 NLM 
650 7 |a Peptides  |2 NLM 
650 7 |a Potassium Channel Blockers  |2 NLM 
650 7 |a Scorpion Venoms  |2 NLM 
650 7 |a TX1 toxin, Heterometrus spinnifer  |2 NLM 
650 7 |a Terpenes  |2 NLM 
650 7 |a pristane  |2 NLM 
650 7 |a 26HZV48DT1  |2 NLM 
650 7 |a Polyethylene Glycols  |2 NLM 
650 7 |a 3WJQ0SDW1A  |2 NLM 
650 7 |a Ovalbumin  |2 NLM 
650 7 |a 9006-59-1  |2 NLM 
700 1 |a Tajhya, Rajeev B  |e verfasserin  |4 aut 
700 1 |a Huq, Redwan  |e verfasserin  |4 aut 
700 1 |a Gehrmann, Elizabeth J  |e verfasserin  |4 aut 
700 1 |a Rodarte, Kathia E  |e verfasserin  |4 aut 
700 1 |a Atik, Mustafa A  |e verfasserin  |4 aut 
700 1 |a Norton, Raymond S  |e verfasserin  |4 aut 
700 1 |a Pennington, Michael W  |e verfasserin  |4 aut 
700 1 |a Beeton, Christine  |e verfasserin  |4 aut 
773 0 8 |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 
773 1 8 |g volume:180  |g year:2017  |g day:15  |g month:07  |g pages:45-57 
856 4 0 |u http://dx.doi.org/10.1016/j.clim.2017.03.014  |3 Volltext 
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