Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1991;77(1):59-64.
doi: 10.1007/BF00934387.

Monoclonal antibodies identify micronemes and a new population of cytoplasmic granules cross-reacting with micronemes of cystozoites of Sarcocystis muris

Affiliations

Monoclonal antibodies identify micronemes and a new population of cytoplasmic granules cross-reacting with micronemes of cystozoites of Sarcocystis muris

R Entzeroth et al. Parasitol Res. 1991.

Abstract

Micronemes of cystozoites of Sarcocystis muris were isolated after subcellular fractionation and used for immunization of BALB/C mice. After spleen cells of immunized mice were fused with SP20 myeloma cells, ten different monoclonal antibodies (mAbs) were isolated. These antibodies reacted with antigens whose molecular weight ranged from 16 to greater than 90 kDa. Six mAbs recognized granules of 150-400 nm that were located in the vicinity of the Golgi complex but were not identical with dense granules. Two mAbs (2A3, 3A8) were specific for micronemes of cystozoites as demonstrated by immunoelectron microscopy. However, these antibodies also recognized the population of granules near the Golgi complex. Cross-reactivity between micronemes and a dense granule population has not previously been reported. Host cells that had been contacted by cystozoites showed patchy fluorescence when probed with mAb 2A3. This suggests that microneme antigens could be transferred to the host-cell surface during parasite-host cell interactions.

PubMed Disclaimer

Similar articles

Cited by

References

    1. Nature. 1970 Aug 15;227(5259):680-5 - PubMed
    1. Parasitol Res. 1989;75(3):199-205 - PubMed
    1. Mol Biochem Parasitol. 1980 Sep;1(5):279-89 - PubMed
    1. J Protozool. 1985 Aug;32(3):446-53 - PubMed
    1. J Histochem Cytochem. 1981 May;29(5):663-71 - PubMed

Publication types