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Recombinant Wolbachia heat shock protein 60 (HSP60) mediated immune responses in patients with lymphatic filariasis

Identifieur interne : 004B94 ( Main/Exploration ); précédent : 004B93; suivant : 004B95

Recombinant Wolbachia heat shock protein 60 (HSP60) mediated immune responses in patients with lymphatic filariasis

Auteurs : Chandanapurath Shiny [Inde] ; Nagampalli S. A. Krushna [Inde] ; Subash Babu [Inde] ; S. Elango [Inde] ; Guruswamy Manokaran [Inde] ; Rangarajan Badri Narayanan [Inde]

Source :

RBID : PMC:3515687

Descripteurs français

English descriptors

Abstract

Wolbachia, an endosymbiont present in filarial nematodes, have been implicated in a variety of roles, including the worm development and survival. Elucidation of the role of Wolbachia in filarial nematode biology and pathogenesis has become the focus of many studies and its contribution to parasite survival or immune response is still unclear. Recombinant Wolbachia HSP60 decreases T cell activation and lymphoproliferation in filarial infected people compared to endemic controls as observed by the assessment of T cell activation markers and cytokine responses in the peripheral blood mononuclear cells. Reduced T cell activation may be linked to T regulatory cell activity since it is associated with increased expression of CTLA4 and CD25 on CD4+ T cells in filarial infected group upon stimulation with recombinant Wolbachia HSP60. In addition, elevated interleukin-10 and TGF-β cytokines corroborate the reduced CD4+ T cell activation and interferon-γ observed upon recombinant Wolbachia HSP60 stimulation in filarial patients. Hence, these findings indicate that Wolbachia HSP60 may also contribute to the immune modulation seen in filarial patients.


Url:
DOI: 10.1016/j.micinf.2011.07.004
PubMed: 21827871
PubMed Central: 3515687


Affiliations:


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Le document en format XML

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heat shock protein 60 (HSP60) mediated immune responses in patients with lymphatic filariasis</title>
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heat shock protein 60 (HSP60) mediated immune responses in patients with lymphatic filariasis</title>
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<name sortKey="Shiny, Chandanapurath" sort="Shiny, Chandanapurath" uniqKey="Shiny C" first="Chandanapurath" last="Shiny">Chandanapurath Shiny</name>
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<term>Adolescent</term>
<term>Adult</term>
<term>Animals</term>
<term>Bacterial Proteins (genetics)</term>
<term>Bacterial Proteins (immunology)</term>
<term>Bacterial Proteins (pharmacology)</term>
<term>Brugia malayi (immunology)</term>
<term>Brugia malayi (microbiology)</term>
<term>CTLA-4 Antigen (immunology)</term>
<term>Cells, Cultured</term>
<term>Chaperonin 60 (genetics)</term>
<term>Chaperonin 60 (immunology)</term>
<term>Chaperonin 60 (pharmacology)</term>
<term>Child</term>
<term>Elephantiasis, Filarial (immunology)</term>
<term>Elephantiasis, Filarial (parasitology)</term>
<term>Female</term>
<term>Humans</term>
<term>Immunomodulation (drug effects)</term>
<term>Interferon-gamma (biosynthesis)</term>
<term>Interferon-gamma (immunology)</term>
<term>Interleukin-10 (biosynthesis)</term>
<term>Interleukin-10 (immunology)</term>
<term>Interleukin-2 Receptor alpha Subunit (immunology)</term>
<term>Lymphocyte Activation (drug effects)</term>
<term>Male</term>
<term>Recombinant Proteins (genetics)</term>
<term>Recombinant Proteins (immunology)</term>
<term>Recombinant Proteins (pharmacology)</term>
<term>Symbiosis</term>
<term>T-Lymphocytes, Regulatory (drug effects)</term>
<term>T-Lymphocytes, Regulatory (immunology)</term>
<term>Transforming Growth Factor beta (biosynthesis)</term>
<term>Transforming Growth Factor beta (immunology)</term>
<term>Wolbachia (chemistry)</term>
<term>Wolbachia (physiology)</term>
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<keywords scheme="KwdFr" xml:lang="fr">
<term>Activation des lymphocytes ()</term>
<term>Adolescent</term>
<term>Adulte</term>
<term>Animaux</term>
<term>Antigène CTLA-4 (immunologie)</term>
<term>Brugia malayi (immunologie)</term>
<term>Brugia malayi (microbiologie)</term>
<term>Cellules cultivées</term>
<term>Chaperonine-60 (génétique)</term>
<term>Chaperonine-60 (immunologie)</term>
<term>Chaperonine-60 (pharmacologie)</term>
<term>Enfant</term>
<term>Facteur de croissance transformant bêta (biosynthèse)</term>
<term>Facteur de croissance transformant bêta (immunologie)</term>
<term>Femelle</term>
<term>Filariose lymphatique (immunologie)</term>
<term>Filariose lymphatique (parasitologie)</term>
<term>Humains</term>
<term>Immunomodulation ()</term>
<term>Interféron gamma (biosynthèse)</term>
<term>Interféron gamma (immunologie)</term>
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<term>Protéines bactériennes (immunologie)</term>
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<term>Protéines recombinantes (immunologie)</term>
<term>Protéines recombinantes (pharmacologie)</term>
<term>Sous-unité alpha du récepteur à l'interleukine-2 (immunologie)</term>
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<term>Wolbachia ()</term>
<term>Wolbachia (physiologie)</term>
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<term>Transforming Growth Factor beta</term>
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<term>Bacterial Proteins</term>
<term>Chaperonin 60</term>
<term>Recombinant Proteins</term>
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<term>Bacterial Proteins</term>
<term>CTLA-4 Antigen</term>
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<term>Interleukin-10</term>
<term>Interleukin-2 Receptor alpha Subunit</term>
<term>Recombinant Proteins</term>
<term>Transforming Growth Factor beta</term>
</keywords>
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<term>Bacterial Proteins</term>
<term>Chaperonin 60</term>
<term>Recombinant Proteins</term>
</keywords>
<keywords scheme="MESH" qualifier="biosynthèse" xml:lang="fr">
<term>Facteur de croissance transformant bêta</term>
<term>Interféron gamma</term>
<term>Interleukine-10</term>
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<term>Wolbachia</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en">
<term>Immunomodulation</term>
<term>Lymphocyte Activation</term>
<term>T-Lymphocytes, Regulatory</term>
</keywords>
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<term>Chaperonine-60</term>
<term>Protéines bactériennes</term>
<term>Protéines recombinantes</term>
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<term>Antigène CTLA-4</term>
<term>Brugia malayi</term>
<term>Chaperonine-60</term>
<term>Facteur de croissance transformant bêta</term>
<term>Filariose lymphatique</term>
<term>Interféron gamma</term>
<term>Interleukine-10</term>
<term>Lymphocytes T régulateurs</term>
<term>Protéines bactériennes</term>
<term>Protéines recombinantes</term>
<term>Sous-unité alpha du récepteur à l'interleukine-2</term>
</keywords>
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<term>Brugia malayi</term>
<term>Elephantiasis, Filarial</term>
<term>T-Lymphocytes, Regulatory</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr">
<term>Brugia malayi</term>
</keywords>
<keywords scheme="MESH" qualifier="microbiology" xml:lang="en">
<term>Brugia malayi</term>
</keywords>
<keywords scheme="MESH" qualifier="parasitologie" xml:lang="fr">
<term>Filariose lymphatique</term>
</keywords>
<keywords scheme="MESH" qualifier="parasitology" xml:lang="en">
<term>Elephantiasis, Filarial</term>
</keywords>
<keywords scheme="MESH" qualifier="pharmacologie" xml:lang="fr">
<term>Chaperonine-60</term>
<term>Protéines bactériennes</term>
<term>Protéines recombinantes</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr">
<term>Wolbachia</term>
</keywords>
<keywords scheme="MESH" qualifier="physiology" xml:lang="en">
<term>Wolbachia</term>
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<term>Adulte</term>
<term>Animaux</term>
<term>Cellules cultivées</term>
<term>Enfant</term>
<term>Femelle</term>
<term>Humains</term>
<term>Immunomodulation</term>
<term>Lymphocytes T régulateurs</term>
<term>Mâle</term>
<term>Symbiose</term>
<term>Wolbachia</term>
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<front>
<div type="abstract" xml:lang="en">
<p id="P1">
<italic>Wolbachia</italic>
, an endosymbiont present in filarial nematodes, have been implicated in a variety of roles, including the worm development and survival. Elucidation of the role of
<italic>Wolbachia</italic>
in filarial nematode biology and pathogenesis has become the focus of many studies and its contribution to parasite survival or immune response is still unclear. Recombinant
<italic>Wolbachia</italic>
HSP60 decreases T cell activation and lymphoproliferation in filarial infected people compared to endemic controls as observed by the assessment of T cell activation markers and cytokine responses in the peripheral blood mononuclear cells. Reduced T cell activation may be linked to T regulatory cell activity since it is associated with increased expression of CTLA4 and CD25 on CD4
<sup>+</sup>
T cells in filarial infected group upon stimulation with recombinant
<italic>Wolbachia</italic>
HSP60. In addition, elevated interleukin-10 and TGF-β cytokines corroborate the reduced CD4
<sup>+</sup>
T cell activation and interferon-γ observed upon recombinant
<italic>Wolbachia</italic>
HSP60 stimulation in filarial patients. Hence, these findings indicate that
<italic>Wolbachia</italic>
HSP60 may also contribute to the immune modulation seen in filarial patients.</p>
</div>
</front>
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</country>
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<name sortKey="Shiny, Chandanapurath" sort="Shiny, Chandanapurath" uniqKey="Shiny C" first="Chandanapurath" last="Shiny">Chandanapurath Shiny</name>
</noRegion>
<name sortKey="Babu, Subash" sort="Babu, Subash" uniqKey="Babu S" first="Subash" last="Babu">Subash Babu</name>
<name sortKey="Elango, S" sort="Elango, S" uniqKey="Elango S" first="S." last="Elango">S. Elango</name>
<name sortKey="Krushna, Nagampalli S A" sort="Krushna, Nagampalli S A" uniqKey="Krushna N" first="Nagampalli S. A." last="Krushna">Nagampalli S. A. Krushna</name>
<name sortKey="Manokaran, Guruswamy" sort="Manokaran, Guruswamy" uniqKey="Manokaran G" first="Guruswamy" last="Manokaran">Guruswamy Manokaran</name>
<name sortKey="Narayanan, Rangarajan Badri" sort="Narayanan, Rangarajan Badri" uniqKey="Narayanan R" first="Rangarajan Badri" last="Narayanan">Rangarajan Badri Narayanan</name>
</country>
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