Instant Access to the Journals You Need

for just $40 per month.

Start Your Free Trial

The parasitic trematode Fasciola hepatica exhibits mammalian-type glycolipids as well as Gal(β1-6)Gal-terminating glycolipids that account for cestode serological cross-reactivity

The parasitic trematode Fasciola hepatica exhibits mammalian-type glycolipids as well as Gal(β1-6)Gal-terminating glycolipids that account for cestode serological cross-reactivity

Abstract

Abstract Neutral glycosphingolipids from sheep-derived Fasciola hepatica liver flukes were isolated and characterized both structurally and serologically. After HPLC fractionation, glycolipids were analyzed by linkage analysis, enzymatic cleavage, and MALDI-TOF as well as electrospray ionization mass spectrometry. Obtained results revealed the presence of two types of neutral glycolipids. The first group represented mammalian-type species comprising globo- and isoglobotriaosylceramides (Gal(α1-4)Gal(β1-4)Glc(1-1)ceramide and Gal(α1-3)Gal(β1-4)Glc(1-1)ceramide, respectively) as well as Forssman antigen (GalNAc(α1-3)GalNAc(β1-3/4)Gal(α1-4/3)Gal(β1-4)Glc(1-1)ceramide). Applying Helix pomatia agglutinin, recognizing terminal α-linked GalNAc, to cryosections of adult flukes, the latter glycolipid could be localized to the F. hepatica gut. As Forssman antigen from the parasite and sheep host led to identical MALDI-TOF MS profiles, this glycolipid might be acquired from the definitive host. As a second group, highly antigenic glycolipids were structurally characterized as Gal(β1-6)Gal(β1-4)Glc(1-1)ceramide, Gal(β1-6)Gal(α1-3/4)Gal(β1-4)Glc(1-1)ceramide and Gal(β1-6)Gal(β1-6)Gal(α1-3/4)Gal(β1-4)Glc(1-1)ceramide, the latter two structures of which exhibited both isoglobo- or globo-series core structures. Terminal Gal(β1-6)Gal1-motifs have previously been shown to represent antigenic epitopes of neogala-series glycosphingolipids from tape worms. Using human Echinococcus granulosus infection sera, Gal(β1-6)Gal-terminating glycolipids could be allocated to the gut in adult liver fluke cryosections. Corresponding neogala-reactive antibodies in F. hepatica infection serum were detected by their binding to E. granulosus and Taenia crassiceps neogala-glycosphingolipids. These antibodies might contribute to the known serological cross-reactivity between F. hepatica and parasitic cestode infections. Key words
Loading next page...
 
/lp/oxford-university-press/the-parasitic-trematode-fasciola-hepatica-exhibits-mammalian-type-oE1WI0lNvA

You're reading a free preview. Subscribe to read the entire article.

And millions more from thousands of peer-reviewed journals, for only $40/month.

Start Your Free Trial

What content is in DeepDyve?

  • Read and share from thousands of the leading scholarly journals from Springer, Elsevier, Nature, IEEE, Wiley-Blackwell and more.
  • All the latest content is available, no embargo periods.

Rent Scholarly Articles?

  • Read the full article in your browser.
  • Access all of your rentals from the cloud anywhere you have an internet connection.
  • Beautiful reading experience – Full charts and figures, just like the PDF.
  • Read as much as you'd like - whenever you'd like.

Happy Users

“In one word renting from DeepDyve is FANTASTIC!!! ... 99% of the time I only need access to an article for a month or so, so renting the articles is perfect for me.”

Adam S.

“Thanks for a great service! For an unaffiliated science blogger like myself this is like a dream come true.”

Seppo P.

“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”

Daniel C.

“Let me seize this opportunity and congratulate you on the service you are rendering to the scientific community.”

Joao B.