alexa Sera of Human Beings Hosting Durably Viscerotropic Leishmania Species Display Histones- Binding Immunoglobulins: A Feature To Consider When Probing Signatures of Auto-Reactivity?
ISSN: 2155-9899

Journal of Clinical & Cellular Immunology
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Commentary

Sera of Human Beings Hosting Durably Viscerotropic Leishmania Species Display Histones- Binding Immunoglobulins: A Feature To Consider When Probing Signatures of Auto-Reactivity?

Sami Lakhal1* and Abdelhak Ben Younes2
1Laboratory of Virology, Veterinary Research Institute of Tunisia, Rue Djebel Lakhdhar - La Rabta 1006 Tunis - Tunisie
2Professor of Zootechnics and Director of Veterinary Research Institute of Tunisia, Rue Djebel Lakhdhar - La Rabta 1006 Tunis - Tunisie
Corresponding Author : Sami Lakhal
Laboratory of Virology, Veterinary Research Institute of Tunisia
Rue Djebel Lakhdhar - La Rabta 1006, Tunis – Tunisie
Tel: (+216) 71 564 321
E-mail: [email protected]
Received: January 04, 2016; Accepted: February 03, 2016; Published: February 10, 2016
Citation: Lakhal S, Younes AB (2016) Sera of Human Beings Hosting Durably Viscerotropic Leishmania Species Display Histones- Binding Immunoglobulins: A Feature To Consider When Probing Signatures of Auto-Reactivity?. J Clin Cell Immunol 7:390. doi:10.4172/2155-9899.1000390
Copyright: © 2016 Lakhal S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

When being asked to extract molecular immune signatures, at the preclinical stage of Systemic Lupus Erythematosus (SLE), the analysts who received the subjects’ blood monitor the presence and titers of autoantibodies against a more or less extended panel of SLE associated autoantigens. Tunisian subjects are known to stably share habitats where zoo anthropophilic blood-feeding sand flies and Leishmania infantum co-perpetuate. We were curious to add three other antigenic sources depicted below. Two serum biobanks were selected in the original publication. Analysis from the second shown, four sera containing high titers of mammalian histones autoantibodies as well as a range of ENA-binding autoantibodies. Combined tests that allow detecting antibodies signing risks of developing SLE as well as exposure to viscerotropic Leishmania species, whenever physicians addressed blood of healthy subjects inhabiting areas where perpetuate these species L. chagasi/infantum and L. donovani. L. donovani is the second species within the genus Leishmania to share these so-called viscerotropic features with L. chagasi/ infantum.

We were not in the position to disentangle the genetic and environmental components that could account for the multiple positive serologic tests in healthy subjects.

It will be important to broaden the spectrum of differential diagnoses in healthy subjects at risk of developing auto immune diseases when they stably inhabit areas where sand flies and viscerotropic Leishmania species coperpetuate.

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