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Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment

Background: Tick-borne encephalitis (TBE) is inflammation of the central nervous system (CNS) caused by a viral infection which may be associated with increased synthesis of immunoglobulins. It can lead to inter alia, breakdown of the blood-brain barrier (BBB), or even death and, unfortunately, trea...

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Autores principales: Gudowska-Sawczuk, Monika, Czupryna, Piotr, Moniuszko-Malinowska, Anna, Pancewicz, Sławomir, Mroczko, Barbara
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269011/
https://www.ncbi.nlm.nih.gov/pubmed/34209994
http://dx.doi.org/10.3390/jcm10132922
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author Gudowska-Sawczuk, Monika
Czupryna, Piotr
Moniuszko-Malinowska, Anna
Pancewicz, Sławomir
Mroczko, Barbara
author_facet Gudowska-Sawczuk, Monika
Czupryna, Piotr
Moniuszko-Malinowska, Anna
Pancewicz, Sławomir
Mroczko, Barbara
author_sort Gudowska-Sawczuk, Monika
collection PubMed
description Background: Tick-borne encephalitis (TBE) is inflammation of the central nervous system (CNS) caused by a viral infection which may be associated with increased synthesis of immunoglobulins. It can lead to inter alia, breakdown of the blood-brain barrier (BBB), or even death and, unfortunately, treatment is only symptomatic. Therefore, the aim of the present study was assessment of the concentrations of free light chains (FLC) kappa (κ) and lambda (λ in the cerebrospinal fluid (CSF) and serum of patients with TBE. Methods: A total of 58 cerebrospinal fluid and serum sample pairs were analyzed. Samples were collected from patients with TBE before and after treatment. FLC were measured using the turbidimetric method. The values of κIgG-index, λIgG-index, κFLC-index and λFLC-index were calculated using relevant formulas. Results: Pre-treatment serum λFLC concentrations were higher in comparison to post-treatment levels. Moreover, it was observed that CSF λFLC, TBEV IgM, TBEV IgG, and serum TBEV IgG, as well as the values of λFLC-index, κFLC-index, and λIgG-index were elevated after treatment. In the total study group, the concentrations of CSF κFLC and λFLC, and values of four indexes: κFLC-index, λFLC-index, κIgG-index, and λIgG-index correlated with each other and with CSF TBEV IgM and IgG antibodies. The CSF level of TBEV IgG was also associated with serum IgG TBEV and CSF IgM TBEV antibodies. Additionally, serum κFLC correlated with serum and CSF λFLC. Conclusion: This is the first study that demonstrates statistically significant differences in serum and CSF λFLC, as well as in the calculated values of three algorithms: λIgG-index, κFLC-index, and λIgG-index prior to and following treatment of TBE. Our findings may indicate that these differences reflect the intrathecal synthesis of immunoglobulins and increased permeability of BBB in patients with TBE. Moreover, it could provide the basis for developing new therapeutic strategies.
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spelling pubmed-82690112021-07-10 Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment Gudowska-Sawczuk, Monika Czupryna, Piotr Moniuszko-Malinowska, Anna Pancewicz, Sławomir Mroczko, Barbara J Clin Med Article Background: Tick-borne encephalitis (TBE) is inflammation of the central nervous system (CNS) caused by a viral infection which may be associated with increased synthesis of immunoglobulins. It can lead to inter alia, breakdown of the blood-brain barrier (BBB), or even death and, unfortunately, treatment is only symptomatic. Therefore, the aim of the present study was assessment of the concentrations of free light chains (FLC) kappa (κ) and lambda (λ in the cerebrospinal fluid (CSF) and serum of patients with TBE. Methods: A total of 58 cerebrospinal fluid and serum sample pairs were analyzed. Samples were collected from patients with TBE before and after treatment. FLC were measured using the turbidimetric method. The values of κIgG-index, λIgG-index, κFLC-index and λFLC-index were calculated using relevant formulas. Results: Pre-treatment serum λFLC concentrations were higher in comparison to post-treatment levels. Moreover, it was observed that CSF λFLC, TBEV IgM, TBEV IgG, and serum TBEV IgG, as well as the values of λFLC-index, κFLC-index, and λIgG-index were elevated after treatment. In the total study group, the concentrations of CSF κFLC and λFLC, and values of four indexes: κFLC-index, λFLC-index, κIgG-index, and λIgG-index correlated with each other and with CSF TBEV IgM and IgG antibodies. The CSF level of TBEV IgG was also associated with serum IgG TBEV and CSF IgM TBEV antibodies. Additionally, serum κFLC correlated with serum and CSF λFLC. Conclusion: This is the first study that demonstrates statistically significant differences in serum and CSF λFLC, as well as in the calculated values of three algorithms: λIgG-index, κFLC-index, and λIgG-index prior to and following treatment of TBE. Our findings may indicate that these differences reflect the intrathecal synthesis of immunoglobulins and increased permeability of BBB in patients with TBE. Moreover, it could provide the basis for developing new therapeutic strategies. MDPI 2021-06-29 /pmc/articles/PMC8269011/ /pubmed/34209994 http://dx.doi.org/10.3390/jcm10132922 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gudowska-Sawczuk, Monika
Czupryna, Piotr
Moniuszko-Malinowska, Anna
Pancewicz, Sławomir
Mroczko, Barbara
Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment
title Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment
title_full Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment
title_fullStr Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment
title_full_unstemmed Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment
title_short Free Immunoglobulin Light Chains in Patients with Tick-Borne Encephalitis: Before and after Treatment
title_sort free immunoglobulin light chains in patients with tick-borne encephalitis: before and after treatment
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8269011/
https://www.ncbi.nlm.nih.gov/pubmed/34209994
http://dx.doi.org/10.3390/jcm10132922
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