Anti-sag1 peptide antibodies inhibit the penetration of toxoplasma gondii tachyzoites into enterocyte cell lines
Parasitology, ISSN: 0031-1820, Vol: 123, Issue: 3, Page: 225-233
2001
- 26Citations
- 17Captures
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Metrics Details
- Citations26
- Citation Indexes24
- 24
- CrossRef22
- Patent Family Citations1
- Patent Families1
- Policy Citations1
- Policy Citation1
- Captures17
- Readers17
- 17
Article Description
The initial attachment of Toxoplasma tachyzoites to the target host cell is an important event in the life-cycle of the parasite and a critical stage in infection. Previous studies have shown that polyclonal antibodies directed against the major surface antigen of Toxoplasma gondii (SAG1) inhibit the infection of enterocyte cell lines. Here, we demonstrate that antibodies raised against a central peptide (V41T) of SAG1 and the SAG1 protein itself are able to inhibit the infection of various cell lines by the tachyzoites. Antibodies directed against SAG1 peptides were used to define a site on the SAG1 antigen that interacts with the host cell. The epitope carried by V41T was identified on the tachyzoite surface by immunofluorescence. The peptide sequence seems to be conserved in all the members of the SAG1 Related Sequence family (SRS). Using undifferentiated and differentiated Caco-2 cells, we found that tachyzoites enter preferentially via the basolateral side of the cell. These findings highlight the role of the SRS family members in the mediation of host cell invasion. © 2001 Cambridge University Press.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0034822446&origin=inward; http://dx.doi.org/10.1017/s0031182001008460; http://www.ncbi.nlm.nih.gov/pubmed/11578086; http://www.journals.cambridge.org/abstract_S0031182001008460; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0031182001008460; https://www.cambridge.org/core/product/identifier/S0031182001008460/type/journal_article
Cambridge University Press (CUP)
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