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<publisher>HAL CCSD</publisher>
<title lang=en>Human hepatic stellate cells in primary culture are safe targets for Leishmania donovani.</title>
<creator>Rostan, Octavie</creator>
<creator>Robert-Gangneux, Florence</creator>
<creator>Lambert, Marine</creator>
<creator>Samson, Michel</creator>
<creator>Gangneux, Jean -Pierre</creator>
<contributor>Institut de recherche, santé, environnement et travail [Rennes] (Irset) ; Université d'Angers (UA) - Université des Antilles et de la Guyane (UAG) - Université de Rennes 1 (UR1) - École des Hautes Études en Santé Publique [EHESP] (EHESP) - Institut National de la Santé et de la Recherche Médicale (INSERM) - Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )</contributor>
<contributor>Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )</contributor>
<description>International audience</description>
<source>ISSN: 0031-1820</source>
<source>EISSN: 1469-8161</source>
<source>Parasitology</source>
<publisher>Cambridge University Press (CUP)</publisher>
<identifier>inserm-00825803</identifier>
<identifier>http://www.hal.inserm.fr/inserm-00825803</identifier>
<source>http://www.hal.inserm.fr/inserm-00825803</source>
<source>Parasitology, Cambridge University Press (CUP), 2013, 140 (4), pp.471-81. 〈10.1017/S0031182012001965〉</source>
<identifier>DOI : 10.1017/S0031182012001965</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1017/S0031182012001965</relation>
<identifier>PUBMED : 23253952</identifier>
<relation>info:eu-repo/semantics/altIdentifier/pmid/23253952</relation>
<language>en</language>
<subject lang=en>Leishmania donovani</subject>
<subject lang=en>visceral leishmaniasis</subject>
<subject lang=en>liver</subject>
<subject lang=en>hepatic stellate cells</subject>
<subject lang=en>sanctuary cells</subject>
<subject lang=en>asymptomatic carriage</subject>
<subject lang=en>relapses</subject>
<subject>[SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Leishmania parasites can escape the immune response by invading cell types lacking leishmanicidal mechanisms. Silent persistence of Leishmania parasites in the host organism is responsible for asymptomatic carriage and relapses after cured leishmaniasis. Here, we studied the interaction between Hepatic Stellate Cells (HSC) and Leishmania. An original model of human HSC in primary culture infected with L. donovani was developed. The presence of intracellular parasites was studied and quantified using optical and confocal microscopy. HSC characteristics were studied using microscopy, methylene blue assay, long-term cultures and qPCR. We showed for the first time that human HSC are permissive to L. donovani infection, with no modification of HSC survival, growth rate and proinflammatory and fibrogenic characteristics. Intracellular parasites did not replicate but HSC had no effect on their survival. Indeed, after a 40-day culture, infected HSC cultures transferred on NNN medium yielded new promastigotes that were able to proliferate and efficiently infect new cells. HSC are permissive to L. donovani, with neither parasite killing nor apparent cell damage. Thus, HSC could act as potent sanctuary cells for Leishmania in the liver, which could partially explain parasite reactivation after an asymptomatic carriage or a cured visceral leishmaniasis.</description>
<date>2013-04</date>
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