Protection from experimental cerebral malaria with a single intravenous or subcutaneous whole-parasite immunization

Sci Rep. 2018 Feb 15;8(1):3085. doi: 10.1038/s41598-018-21551-2.

Abstract

Cerebral malaria is a life-threatening complication of Plasmodia infection and a major cause of child mortality in Sub-Saharan Africa. We report that protection from experimental cerebral malaria in the rodent model is obtained by a single intravenous or subcutaneous whole-parasite immunization. Whole-parasite immunization with radiation-attenuated sporozoites was equally protective as immunization with non-attenuated sporozoites under chemoprophylaxis. Both immunization regimens delayed the development of blood-stage parasites, but differences in cellular and humoral immune mechanisms were observed. Single-dose whole-parasite vaccination might serve as a relatively simple and feasible immunization approach to prevent life-threatening cerebral malaria.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • CD8-Positive T-Lymphocytes / immunology
  • Disease Models, Animal
  • Female
  • Injections, Intravenous
  • Injections, Subcutaneous
  • Malaria Vaccines / administration & dosage*
  • Malaria Vaccines / immunology
  • Malaria, Cerebral / immunology
  • Malaria, Cerebral / parasitology*
  • Malaria, Cerebral / prevention & control*
  • Mice
  • Mice, Inbred C57BL
  • Plasmodium berghei / immunology*
  • Sporozoites / immunology

Substances

  • Malaria Vaccines