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Ehrlichia's molecular tricks to manipulate their host cells

Amal Moumène1, Damien F Meyer2

  • 1CIRAD, UMR CMAEE, Site de Duclos, Prise d'eau, F-97170 Petit-Bourg, Guadeloupe, France; INRA, UMR1309 CMAEE, F-34398 Montpellier, France; Université des Antilles et de la Guyane, 97159 Pointe-à-Pitre Cedex, Guadeloupe, France.

Microbes and Infection
|December 1, 2015
PubMed

Insights

Ehrlichia bacteria, transmitted by ticks, cause emerging infectious diseases in humans and animals. This review explores how these Gram-negative bacteria manipulate host cells and innate immunity for survival.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Immunology

Background:

  • Ehrlichia are Gram-negative bacteria transmitted by ticks.
  • They cause emerging infectious diseases in humans and animals.
  • These bacteria are obligate intracellular pathogens.

Purpose of the Study:

  • To review functional studies on Ehrlichia host exploitation.
  • To understand how Ehrlichia subverts host innate immunity.
  • To elucidate mechanisms of cellular process hijacking by Ehrlichia.

Main Methods:

  • This is a review article, synthesizing existing functional studies.
  • Focuses on insights from experimental research on Ehrlichia-host interactions.
  • Analysis of molecular mechanisms of bacterial pathogenesis.

Main Results:

  • Ehrlichia spp. invade and replicate in various host cells (endothelial, white blood cells).
  • They also infect midgut and salivary gland cells of vector ticks.
  • Functional studies reveal sophisticated strategies for host immune subversion.

Conclusions:

  • Ehrlichia possess diverse mechanisms to exploit host cells.
  • Understanding these mechanisms is crucial for controlling ehrlichiosis.
  • Further research on host-pathogen interactions will inform therapeutic strategies.
Keywords:
Bacterial-host interactionEffectorsEhrlichiaT4SS

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