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DCmucoHIV

HIV/SIV exploits DCs in mucosal infection: mechanisms of transmission and modulation by semen associated factors

Total Cost €

EC-Contrib. €

Partnership

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Outcomes and
results

DCmucoHIV project word cloud

Explore the words cloud of the DCmucoHIV project. It provides you a very rough idea of what is the project "DCmucoHIV" about.

located molecular tract hiv macaques gi unravel largely fill redistribute mediated infectious natural prevent shuttle events anal vivo clear base propria transfer worldwide semen modulation extend x4 humans lymph modulated components cx3cr1dcs gaps spread intercourse dependent demonstrated mucosal rectal lamina colonic strategies cellular pathogenic possibly epithelium viral intestinal migrate draining dc dcs migration mucosa distal tight deputed cynomolgus multidisciplinary sexual transmission antigens mechanism site nodes idea human siv ccr5 agents virus entry microbial of proportion presentation susceptible resident cells reservoir r5 exposure junctions mice infection columnar vehicle

Project "DCmucoHIV" data sheet

The following table provides information about the project.

Coordinator	COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES Organization address address: RUE LEBLANC 25 city: PARIS 15 postcode: 75015 website: www.cea.fr contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.
Coordinator Country	France [FR]
Project website	http://www.idmitcenter.fr
Total cost	173˙076 €
EC max contribution	173˙076 € (100%)
Programme	1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
Code Call	H2020-MSCA-IF-2014
Funding Scheme	MSCA-IF-EF-ST
Starting year	2015
Duration (year-month-day)	from 2015-07-01 to 2017-06-30

Partnership

Take a look of project's partnership.

#	participants	country	role	EC contrib. [€]
1	COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES Organization address address: RUE LEBLANC 25 city: PARIS 15 postcode: 75015 website: www.cea.fr contact info title: n.a. name: n.a. surname: n.a. function: n.a. email: n.a. telephone: n.a. fax: n.a.	FR (PARIS 15)	coordinator	173˙076.00

Map

Project objective

Worldwide a large proportion of all new cases of HIV-1 infection are due to anal sexual intercourse, being the anal/rectal as well as distal colonic mucosa a site of viral uptake and entry. I recently demonstrated that intestinal lamina propria resident DCs migrate towards and extend cellular processes between the tight junctions of columnar epithelium through a CCR5-dependent mechanism, take up R5 but not X4 HIV-1, and then transfer infection to susceptible T cells. Although in mice CX3CR1DCs are deputed to shuttle microbial antigens, there is no clear idea on which subsets of DCs are located in the human GI tract, are involved in HIV infection and contribute to virus spread, its presentation or possibly to its reservoir. Moreover, the ability of DCs to shuttle the virus across the mucosa may be largely modulated by components of semen, the natural vehicle of HIV during sexual transmission. To fill these gaps I propose a comparative study in macaques and humans using a multidisciplinary approach, which will unravel the mechanism associated with rectal transmission of HIV/SIV by DCs and their modulation by semen. Specific objectives will be: 1. Define the subsets of DCs and the molecular mechanism(s) through which DCs directly sample HIV-1/SIV through the intestinal epithelium and facilitate the spread of the infection. 2. Define the impact of semen on HIV/SIV-induced DCs migration across the epithelium. 3. Determine the ability of lamina propria DCs subsets to migrate across the intestinal epithelium and to redistribute to draining lymph-nodes following in vivo exposure of Cynomolgus macaques to infectious pathogenic SIV. We expect to characterize the early events of DC-mediated intestinal transmission of HIV/SIV and thus contribute to the knowledge base needed to identify, evaluate and develop novel agents or strategies to prevent mucosal HIV transmission

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The information about "DCMUCOHIV" are provided by the European Opendata Portal: CORDIS opendata.