Schistosome Infection and Schistosome-Derived Products as Modulators for the Prevention and Alleviation of Immunological Disorders

Front Immunol. 2021 Feb 22;12:619776. doi: 10.3389/fimmu.2021.619776. eCollection 2021.

Abstract

Parasitic helminths, comprising the flatworms (tapeworms and flukes) and nematodes (roundworms), have plagued humans persistently over a considerable period of time. It is now known that the degree of exposure to these and other pathogens inversely correlates with the incidence of both T helper 1 (Th1)-mediated autoimmunity and Th2-mediated allergy. Accordingly, there has been recent increased interest in utilizing active helminth worm infections and helminth-derived products for the treatment of human autoimmune and inflammatory diseases and to alleviate disease severity. Indeed, there is an accumulating list of novel helminth derived molecules, including proteins, peptides, and microRNAs, that have been shown to exhibit therapeutic potential in a variety of disease models. Here we consider the blood-dwelling schistosome flukes, which have evolved subtle immune regulatory mechanisms that promote parasite survival but at the same time minimize host tissue immunopathology. We review and discuss the recent advances in using schistosome infection and schistosome-derived products as therapeutics to treat or mitigate human immune-related disorders, including allergic asthma, arthritis, colitis, diabetes, sepsis, cystitis, and cancer.

Keywords: allergic asthma; autoimmune and inflammatory diseases; cancer; colitis; cystitis; diabetes; schistosome; sepsis.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Biological Products / chemistry
  • Biological Products / pharmacology*
  • Biological Products / therapeutic use
  • Disease Management
  • Disease Models, Animal
  • Humans
  • Immune System Diseases / diagnosis
  • Immune System Diseases / drug therapy*
  • Immune System Diseases / etiology
  • Immunologic Factors / chemistry
  • Immunologic Factors / pharmacology*
  • Immunologic Factors / therapeutic use
  • Immunomodulation / drug effects
  • Mice
  • Recombinant Proteins / pharmacology
  • Recombinant Proteins / therapeutic use
  • Schistosoma / chemistry
  • Schistosoma / metabolism*

Substances

  • Biological Products
  • Immunologic Factors
  • Recombinant Proteins