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2013 | 59 | 3 |

Tytuł artykułu

Functional exhaustion of T lymphocytes in chronic toxoplasmosis

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
One of the most characteristic features of many intracellular parasite infections is their chronicity indicating that the host immune system is not capable of eradicating the pathogen. Toxoplasma gondii is the most successful parasite worldwide, infecting an extraordinarily broad range of hosts (endothermic animals and humans) and almost all cell types. Recent studies have revealed that in late chronic toxoplasmosis CD8⁺ T lymphocytes become progressively exhausted and this dysfunction is suggested to be responsible for the reactivation of latent infection, which may result in a life-threatening disease in immunocompromised individuals (e.g. neurotoxoplasmosis in AIDS patients). The article presents selected aspects of a new paradigm – T cell exhaustion phenomenon – a progressive dysfunction over time, which makes the host unable to control intracellular pathogen infections or tumours.

Wydawca

-

Rocznik

Tom

59

Numer

3

Opis fizyczny

p.109-112,ref.

Twórcy

autor
  • Department of Immunoparasitology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland
  • Department of Immunoparasitology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland

Bibliografia

  • [1] Montoya J.G., Liesenfeld O. 2004. Toxoplasmosis. The Lancet 63: 1965-1976.
  • [2] Muñoz M., Liesenfeld O., Heimesaat M.M. 2011. Immunology of Toxoplasma gondii. Immunological Reviews 240: 269-285.
  • [3] Gazzinelli R., Xu Y., Hieny S., Cheever A., Sher A. 1992. Simultaneous depletion of CD4⁺ and CD8⁺ T lymphocytes is required to reactivate chronic infection with Toxoplasma gondii. Journal of Immunology 149: 175-180.
  • [4] Tait E.D., Hunter C. 2009. Advances in understanding immunity to Toxoplasma gondii. The Memórias do Instituto Oswaldo Cruz 104: 201-210.
  • [5] Jordan K.A., Hunter C.A. 2010. Regulation of CD8⁺ T cell responses to infection with parasitic protozoa. Experimental Parasitology 126: 318-325.
  • [6] Khan I.A., Matsuura T., Kasper L.H. 1995. IL-10 mediates immunosuppression following primary infection with Toxoplasma gondii in mice. Parasite Immunology 17: 185-195.
  • [7] Gazzinelli R.T., Amichay D., Sharton-Kersten T., Grunwald E., Farber J.M., Sher A. 1996. Role of macrophage-derived cytokines in the induction and regulation of cell-mediated immunity to Toxoplasma gondii. Current Topics in Microbiology and Immunology 219: 127-139.
  • [8] Gigley J.P., Bhadra R., Khan I.A. 2011. CD8 T cells and Toxoplasma gondii: a new paradigm. Journal of Parasitology Research: 243796.
  • [9] Bhadra R., Gigley J.P., Weiss L.M., Khan I.A. 2011. Control of Toxoplasma reactivation by rescue of dysfunctional CD8⁺ T-cell response via PD-1-PDL-1 blockade. Proceedings of the National Academy of Sciences USA 108: 9196-9201.
  • [10] Bhadra R., Gigley J.P., Khan I.A. 2012. PD-1-mediated attrition of polyfunctional memory CD8⁺ T cells in chronic Toxoplasma infection. Journal of Infectious Diseases 206: 125-133.
  • [11] Bhadra R., Khan I.A. 2012. Redefining chronic toxoplasmosis – a T cell exhaustion perspective. PLoS Pathogens 8: e1002903.
  • [12] Bhadra R., Gigley J.P., Khan I.A. 2011. Cutting edge: CD40-CD40 ligand pathway plays a critical CD-8-intrinsic and -extrinsic role during rescue of exhausted CD8 cells. The Journal of Immunology 187: 4421-4425.
  • [13] Bhadra R., Cobb D.A., Khan I.A. 2013. Donor CD8⁺ cells prevent Toxoplasma de-encystation but fail to rescue exhausted endogenous CD8 population. Infection and Immunity 81: 3414–3425.
  • [14] Gatkowska J., Gasior L., Kur J., Dlugonska H. 2008. Toxoplasma gondii: chimeric Dr fimbriae as a recombinant vaccine against toxoplasmosis. Experimental Parasitology 118: 266-270.
  • [15] Jung B.K., Pyo K.H., Shin K.Y., Hwang Y.S., Lim H., Lee S.J., Moon J.H., Lee S.H., Suh Y.H., Chai J.Y. Shin E.H. 2012. Toxoplasma gondii infection in the brain inhibits neuronal degeneration and learning memory impairments in a murine model of Alzheimer’s disease. PLoS One 7: e33312.
  • [16] Gigley J.P., Bhadra R., Moretto M.M., Khan I.A. 2012. T cell exhaustion in protozoan disease. Trends in Parasitology 28: 377-384.
  • [17] Riches J.C., Davies J.K., McClanahan F., Fatah R., Iqbal S., Agwal S., Ramsay A.G., Gribben J.G. 2013. T cells from CLL patients exhibit features of T-cell exhaustion but retain capacity for cytokine production. Blood 121: 1612-1621.
  • [18] Zenz T. 2013. Exhausting T cell in CLL. Blood 121: 1485-1486.
  • [19] Ingram J.T., Yi J.S., Zajac A.J. 2011. Exhausted CD8 T cells downregulate the IL-18 receptor and become unresponsive to inflammatory cytokines and bacterial co-infections. PLoS Pathogens 7: e1002273.
  • [20] Jin H.K., Jeong Y.H., Park H.J., Ha S.J. 2011. Mechanism of T cell exhaustion in a chronic environment. Biochemistry and Molecular Biology Reports 44: 218-231.
  • [21] Utzschneider D.T., Legat A., Fuertes Marraco S.A., Carrié L., Luescher I., Speiser D.E., Zehn D. 2013. T cells maintain an exhausted phenotype after antigen withdrawal and population reexpansion. Nature Immunology 14: 603-610.

Typ dokumentu

Bibliografia

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