Études et publications

EPLS a réalisé de nombreuses études sous l’égide du Ministère des Affaires Etrangères Français, de la Communauté Européenne, et de l’Organisation Mondiale de la Santé (OMS). Depuis 1992, EPLS a réalisé plus de 50 programmes de recherche appliquée dans la vallée du fleuve, dont les résultats ont donné lieu à près de 100 publications dans des revues scientifiques et médicales internationales à comité de lecture.

Publications

Schistosomes: the road from host-parasite interactions to vaccines in clinical trials

Capron A, Riveau G, Capron M, Trottein F.

Trends in parasitology, 2005, 21(3):143-9 (PMID : 15734662)

Insights over recent years into the interactions between helminths, including schistosomes, and the immune system have generated new concepts in immunology and significant advances in vaccine strategies. Here, we report recent advances that substantially increase our understanding of the nature of the host innate and adaptive responses to schistosomes and on strategies elaborated by the parasite to manipulate such responses. We also describe the long road that has allowed us to move from the identification of an anti-schistosome vaccine candidate, a 28kDa glutathione-S-transferase, to its recent evaluation in human clinical trials.

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Schistosomiasis co-infection in humans influences inflammatory markers in uncomplicated Plasmodium falciparum malaria

Diallo TO, Remoue F, Schacht AM, Charrier N, Dompnier JP, Pillet S, Garraud O, N'diaye AA, Capron A, Capron M, Riveau G.

Parasite immunology, 2004, 26(8-9):365-9 (PMID : 15679634)

Malaria and schistosomiasis are the two major parasite diseases present in developing countries. The epidemiological co-infection with schistosomiasis could influence the development of the physiological reaction associated with Plasmodium falciparum infection in human. Most studies have demonstrated the association of circulating levels of interferon-gamma (IFN-gamma), tumour necrosis factor-a (TNF-alpha), interleukin-10 (IL-10), transforming growth factor (TGF-beta) and soluble Tumour Necrosis Factor Receptors (sTNF-RI and sTNF-RII) with the morbidity of malaria. In the present study, we showed that Schistosoma haematobium co-infection influences, in an age-dependent manner, the unbalance between pro- and anti-inflammatory circulating cytokines that play a key role during malaria infection. Indeed, children co-infected by S. haematobium have higher levels of IFN-gamma and sTNF-RII than children infected only by P. falciparum. In contrast, co-infected adults presented a significant increase of IFN-gamma, IL-10, TGF-beta, sTNF-RI and sTNF-RII rates and IL-10/TNF-alpha ratio. Taken together, this study indicates that schistosomiasis co-infection can unbalance the regulation of inflammatory factors in uncomplicated P. falciparum malaria. The possible consequences of the schistosomiasis co-infection for age-dependent malaria morbidity are discussed.

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