Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons

Pain is a under-recognized association of leucine-rich glioma-inactivated 1 (LGI1) and contactin-associated protein-like 2 (CASPR2) antibodies. Of 147 patients with these autoantibodies, pain was experienced by 17 of 33 (52%) with CASPR2- versus 20 of 108 (19%) with LGI1 antibodies (p = 0.0005), and...

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Main Authors: Ramanathan, S, Tseng, M, Davies, AJ, Uy, CE, Paneva, S, Mgbachi, VC, Michael, S, Varley, JA, Binks, S, Themistocleous, AC, Fehmi, J, Anziska, Y, Soni, A, Hofer, M, Waters, P, Brilot, F, Dale, RC, Dawes, J, Rinaldi, S, Bennett, DL, Irani, SR
Format: Journal article
Language:English
Published: Wiley 2021
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author Ramanathan, S
Tseng, M
Davies, AJ
Uy, CE
Paneva, S
Mgbachi, VC
Michael, S
Varley, JA
Binks, S
Themistocleous, AC
Fehmi, J
Anziska, Y
Soni, A
Hofer, M
Waters, P
Brilot, F
Dale, RC
Dawes, J
Rinaldi, S
Bennett, DL
Irani, SR
author_facet Ramanathan, S
Tseng, M
Davies, AJ
Uy, CE
Paneva, S
Mgbachi, VC
Michael, S
Varley, JA
Binks, S
Themistocleous, AC
Fehmi, J
Anziska, Y
Soni, A
Hofer, M
Waters, P
Brilot, F
Dale, RC
Dawes, J
Rinaldi, S
Bennett, DL
Irani, SR
author_sort Ramanathan, S
collection OXFORD
description Pain is a under-recognized association of leucine-rich glioma-inactivated 1 (LGI1) and contactin-associated protein-like 2 (CASPR2) antibodies. Of 147 patients with these autoantibodies, pain was experienced by 17 of 33 (52%) with CASPR2- versus 20 of 108 (19%) with LGI1 antibodies (p = 0.0005), and identified as neuropathic in 89% versus 58% of these, respectively. Typically, in both cohorts, normal nerve conduction studies and reduced intraepidermal nerve fiber densities were observed in the sampled patient subsets. In LGI1 antibody patients, pain responded to immunotherapy (p = 0.008), often rapidly, with greater residual patient-rated impairment observed in CASPR2 antibody patients (p = 0.019). Serum CASPR2 antibodies, but not LGI1 antibodies, bound in vitro to unmyelinated human sensory neurons and rodent dorsal root ganglia, suggesting pathophysiological differences that may underlie our clinical observations.
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spelling oxford-uuid:ab513ee9-dc54-4141-9119-1a7009de46ff2022-08-31T21:03:09ZLeucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisonsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ab513ee9-dc54-4141-9119-1a7009de46ffEnglishSymplectic ElementsWiley2021Ramanathan, STseng, MDavies, AJUy, CEPaneva, SMgbachi, VCMichael, SVarley, JABinks, SThemistocleous, ACFehmi, JAnziska, YSoni, AHofer, MWaters, PBrilot, FDale, RCDawes, JRinaldi, SBennett, DLIrani, SRPain is a under-recognized association of leucine-rich glioma-inactivated 1 (LGI1) and contactin-associated protein-like 2 (CASPR2) antibodies. Of 147 patients with these autoantibodies, pain was experienced by 17 of 33 (52%) with CASPR2- versus 20 of 108 (19%) with LGI1 antibodies (p = 0.0005), and identified as neuropathic in 89% versus 58% of these, respectively. Typically, in both cohorts, normal nerve conduction studies and reduced intraepidermal nerve fiber densities were observed in the sampled patient subsets. In LGI1 antibody patients, pain responded to immunotherapy (p = 0.008), often rapidly, with greater residual patient-rated impairment observed in CASPR2 antibody patients (p = 0.019). Serum CASPR2 antibodies, but not LGI1 antibodies, bound in vitro to unmyelinated human sensory neurons and rodent dorsal root ganglia, suggesting pathophysiological differences that may underlie our clinical observations.
spellingShingle Ramanathan, S
Tseng, M
Davies, AJ
Uy, CE
Paneva, S
Mgbachi, VC
Michael, S
Varley, JA
Binks, S
Themistocleous, AC
Fehmi, J
Anziska, Y
Soni, A
Hofer, M
Waters, P
Brilot, F
Dale, RC
Dawes, J
Rinaldi, S
Bennett, DL
Irani, SR
Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons
title Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons
title_full Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons
title_fullStr Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons
title_full_unstemmed Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons
title_short Leucine-rich glioma-inactivated 1 versus contactin-associated protein-like 2 antibody neuropathic pain: clinical and biological comparisons
title_sort leucine rich glioma inactivated 1 versus contactin associated protein like 2 antibody neuropathic pain clinical and biological comparisons
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