Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita

Interleukin-10, an important regulator of both the innate and adaptive immune systems, is a multifunctional major cytokine. Though it is one of the major cytokines, IL-10 from the Indian major carp, Labeo rohita, has not yet been characterized. In the present study, we report large scale production...

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Main Authors: Sweta Karan, Pujarini Dash, Himani Kaushik, Pramoda K. Sahoo, Lalit C. Garg, Aparna Dixit
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Journal of Immunology Research
Online Access:http://dx.doi.org/10.1155/2016/3962596
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author Sweta Karan
Pujarini Dash
Himani Kaushik
Pramoda K. Sahoo
Lalit C. Garg
Aparna Dixit
author_facet Sweta Karan
Pujarini Dash
Himani Kaushik
Pramoda K. Sahoo
Lalit C. Garg
Aparna Dixit
author_sort Sweta Karan
collection DOAJ
description Interleukin-10, an important regulator of both the innate and adaptive immune systems, is a multifunctional major cytokine. Though it is one of the major cytokines, IL-10 from the Indian major carp, Labeo rohita, has not yet been characterized. In the present study, we report large scale production and purification of biologically active recombinant IL-10 of L. rohita (rLrIL-10) using a heterologous expression system and its biophysical and functional characterization. High yield (~70 mg/L) of soluble rLrIL-10 was obtained at shake flask level. The rLrIL-10 was found to exist as a dimer. Far-UV CD spectroscopy showed presence of predominantly alpha helices. The tertiary structure of the purified rLrIL-10 was verified by fluorescence spectroscopy. Two-dimensional gel analysis revealed the presence of six isoforms of the rLrIL-10. The rLrIL-10 was biologically active and its administration significantly reduced serum proinflammatory cytokines, namely, interleukin 1β, TNFα, and IL-8, and augmented the NKEF transcript levels in spleen of L. rohita. Anti-inflammatory role of the rLrIL-10 was further established by inhibition of phagocytosis using NBT reduction assay in vitro. The data indicate that the dimeric alpha helical structure and function of IL-10 of L. rohita as a key regulator of anti-inflammatory response have remained conserved during evolution.
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spelling doaj-art-fd446bbcbc694d5d8e3b48e725b7effc2025-02-03T06:44:25ZengWileyJournal of Immunology Research2314-88612314-71562016-01-01201610.1155/2016/39625963962596Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohitaSweta Karan0Pujarini Dash1Himani Kaushik2Pramoda K. Sahoo3Lalit C. Garg4Aparna Dixit5Gene Regulation Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, IndiaFish Health Management Division, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar 751 002, IndiaGene Regulation Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, IndiaFish Health Management Division, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar 751 002, IndiaGene Regulation Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi 110067, IndiaSchool of Biotechnology, Jawaharlal Nehru University, New Delhi 110067, IndiaInterleukin-10, an important regulator of both the innate and adaptive immune systems, is a multifunctional major cytokine. Though it is one of the major cytokines, IL-10 from the Indian major carp, Labeo rohita, has not yet been characterized. In the present study, we report large scale production and purification of biologically active recombinant IL-10 of L. rohita (rLrIL-10) using a heterologous expression system and its biophysical and functional characterization. High yield (~70 mg/L) of soluble rLrIL-10 was obtained at shake flask level. The rLrIL-10 was found to exist as a dimer. Far-UV CD spectroscopy showed presence of predominantly alpha helices. The tertiary structure of the purified rLrIL-10 was verified by fluorescence spectroscopy. Two-dimensional gel analysis revealed the presence of six isoforms of the rLrIL-10. The rLrIL-10 was biologically active and its administration significantly reduced serum proinflammatory cytokines, namely, interleukin 1β, TNFα, and IL-8, and augmented the NKEF transcript levels in spleen of L. rohita. Anti-inflammatory role of the rLrIL-10 was further established by inhibition of phagocytosis using NBT reduction assay in vitro. The data indicate that the dimeric alpha helical structure and function of IL-10 of L. rohita as a key regulator of anti-inflammatory response have remained conserved during evolution.http://dx.doi.org/10.1155/2016/3962596
spellingShingle Sweta Karan
Pujarini Dash
Himani Kaushik
Pramoda K. Sahoo
Lalit C. Garg
Aparna Dixit
Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita
Journal of Immunology Research
title Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita
title_full Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita
title_fullStr Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita
title_full_unstemmed Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita
title_short Structural and Functional Characterization of Recombinant Interleukin-10 from Indian Major Carp Labeo rohita
title_sort structural and functional characterization of recombinant interleukin 10 from indian major carp labeo rohita
url http://dx.doi.org/10.1155/2016/3962596
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