Toxoplasmose et cancer : connaissances actuelles et perspectives de recherche
Résumé
La toxoplasmose, causée par le protozoaire Toxoplasma gondii, est une des parasitoses les plus répandues, puisqu’on estime qu’elle affecte un tiers de la population humaine mondiale. De nombreuses études tendent à démontrer que l’infection peut entraîner des effets néfastes importants tels que favoriser la schizophrénie et les troubles bipolaires. De plus, deux études ont récemment mis en évidence une corrélation positive entre la prévalence des tumeurs malignes du cerveau et celle des infections à T. gondii à l’échelle nationale et internationale. Ces études étant corrélatives, elles ne démontrent pas de lien causal et appellent d’autres recherches qui pourraient mettre en lumière les éventuels mécanismes qui sous-tendent l’association entre T. gondii et tumeurs cérébrales.
Mots clés
Toxoplasma gondii Tumeurs cérébrales Géographie médicaleToxoplasmosis and cancer: Current knowledge and research perspectives
Abstract
Toxoplasmosis, caused by Toxoplasma gondii, is one of the most prevalent parasitic diseases; it is estimated to affect a third of the world’s human population. Many studies showed that latent toxoplasmosis may cause in some patients significant adverse effects including schizophrenia and bipolar disorders. In addition, two recent studies highlighted a positive correlation between the prevalence of brain tumors and that of T. gondii at national and international scale. These studies are correlative, thus they do not demonstrate a causal link between T. gondii and brain tumors. Yet, they call for further research that could shed light on the possible mechanisms underlying this association.
Keywords
Toxoplasma gondii Brain tumor Medical geographyPreview
Unable to display preview. Download preview PDF.
Références
- 1.Ancelle T, Carme B, Thulliez P, et al (1996) La toxoplasmose chez la femme enceinte en France en 1995. Résultats d’une enquête nationale périnatale. Bull Epidémiol Hebd 51:227–9Google Scholar
- 2.Baird JR, Byrne KT, Lizotte PH, et al (2013) Immune-Mediated Regression of Established B16F10 Melanoma by Intratumoral Injection of Attenuated Toxoplasma gondii Protects against Rechallenge. J Immunol 190(1):469–78CrossRefPubMedGoogle Scholar
- 3.CNR Toxoplasmose (2013) Diagnostic de la toxoplasmose 2013. [En ligne]. http://cnrtoxoplasmose.chu-reims.fr/wp-content/uploads/2015/04/Diagnostic-de-la-toxoplasmose-2013-n179.pdfGoogle Scholar
- 4.Ewald PW (2009) An evolutionary perspective on parasitism as a cause of cancer. Adv Parasitol 68:21–43CrossRefPubMedGoogle Scholar
- 5.Flegr J, Havlicek J, Kodym P, et al (2002) Increased risk of traffic accidents in subjects with latent toxoplasmosis: a retrospective case-control study. BMC Infect Dis 2:11CrossRefPubMedPubMedCentralGoogle Scholar
- 6.Fox BA, Sanders KL, Chen S, Bzik DJ (2013) Targeting tumors with nonreplicating Toxoplasma gondii uracil auxotroph vaccines. Trends Parasitol 29(9):431–7CrossRefPubMedPubMedCentralGoogle Scholar
- 7.Groër MW, Yolken RH, Beckstead JW, et al (2011) Prenatal depression and anxiety in Toxoplasma gondii–positive women. Am J Obstet Gynecol 204(5): 433.e1–7Google Scholar
- 8.Hamdani N, Daban-Huard C, Lajnef M, et al (2013) Relationship between Toxoplasma gondii infection and bipolar disorder in a French sample. J Affect Disord 148(2-3):444–8CrossRefPubMedGoogle Scholar
- 9.Lafferty D (2006) Can the common brain parasite, Toxoplasma gondii, influence human culture? Proc Biol Sci 273(1602):2749–55CrossRefPubMedPubMedCentralGoogle Scholar
- 10.Lot F, Pillonel J, Pinget R, et al (2011) Les pathologies inaugurales de sida, France, 2003-2010. Bull Epidémiol Hebd 43-44:454–8Google Scholar
- 11.Montoya JG, Liesenfeld O (2004) Toxoplasmosis. Lancet 363 (9425):1965–76CrossRefPubMedGoogle Scholar
- 12.Motamedi M, Arab S, Moazzeni SM, et al (2009) Improvement of a Dendritic Cell-Based Therapeutic Cancer Vaccine with Components of Toxoplasma gondii. Clin Vaccine Immunol 16(10):1393–8CrossRefPubMedPubMedCentralGoogle Scholar
- 13.Ryan P, Hurley SF, Johnson AM, et al (1993) Tumours of the brain and presence of antibodies to Toxoplasma gondii. Int J Epidemiol 22(3):412–9CrossRefPubMedGoogle Scholar
- 14.Schuman LM, Choi NW, Gullen WH (1967) Relationship of central nervous system neoplasms to Toxoplasma gondii infection. Am J Public Health Nations Health 57(5):848–56CrossRefPubMedPubMedCentralGoogle Scholar
- 15.Song KJ, Shin JC, Shin HJ, Nam HW (2005) Seroprevalence of toxoplasmosis in Korean pregnant women. Korean J Parasitol 43(2):69–71CrossRefPubMedPubMedCentralGoogle Scholar
- 16.Suzuki Y, Kobayashi A (1985) Antitumor effect of intralesional injection with formalin-fixed Toxoplasma gondii organisms on Lewis lung carcinoma in Toxoplasma-infected mice. Cancer Lett 25(3):247–54CrossRefPubMedGoogle Scholar
- 17.Thirugnanam S, Rout N, Gnanasekar M (2013) Possible role of Toxoplasma gondii in brain cancer through modulation of host microRNAs. Infect Agent Cancer 8(1):8CrossRefPubMedPubMedCentralGoogle Scholar
- 18.Thomas F, Lafferty KD, Brodeur J, et al (2012) Incidence of adult brain cancers is higher in countries where the protozoan parasite Toxoplasma gondii is common. Biol Lett 8(1):101–3CrossRefPubMedGoogle Scholar
- 19.Torrey EF, Bartko JL, Yolken RH (2012) Toxoplasma gondii and other risk factors for schizophrenia: an update. Schizophr Bull 38 (3): 642–7CrossRefPubMedPubMedCentralGoogle Scholar
- 20.Tourdjman M, Tchéandjieu C, de Valk H, et al (2015) Toxoplasmose chez les femmes enceintes en France: évolution de la séroprévalence et des facteurs associés entre 1995 et 2010, à partir des enquêtes nationales périnatales. Bull Epidémiol Hebd (15-16):264–72Google Scholar
- 21.Vittecoq M, Elguero E, Lafferty KD, et al (2012) Brain cancer mortality rates increase with Toxoplasma gondii seroprevalence in France. Infect Genet Evol 12(2):496–8CrossRefPubMedGoogle Scholar
- 22.Vyas A, Kim SK, Giacomini N, et al (2007) Behavioral changes induced by Toxoplasma infection of rodents are highly specific to aversion of cat odors. Proc Natl Acad Sci U S A 104(15):6442–7CrossRefPubMedPubMedCentralGoogle Scholar