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A Mycobacterium avium subsp. paratuberculosis relA deletion mutant and a 35 kDa major membrane protein elicit development of cytotoxic T lymphocytes with ability to kill intracellular bacteria

Overview of attention for article published in Veterinary Research, June 2018
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  • Good Attention Score compared to outputs of the same age (67th percentile)

Mentioned by

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9 tweeters

Citations

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17 Dimensions

Readers on

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32 Mendeley
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Title
A Mycobacterium avium subsp. paratuberculosis relA deletion mutant and a 35 kDa major membrane protein elicit development of cytotoxic T lymphocytes with ability to kill intracellular bacteria
Published in
Veterinary Research, June 2018
DOI 10.1186/s13567-018-0549-3
Pubmed ID
Authors

Gaber S. Abdellrazeq, Mahmoud M. Elnaggar, John P. Bannantine, Kun T. Park, Cleverson D. Souza, Brian Backer, Victoria Hulubei, Lindsay M. Fry, Samy A. Khaliel, Helmy A. Torky, David A. Schneider, William C. Davis

Abstract

Efforts to develop live attenuated vaccines against Mycobacterium avium subspecies paratuberculosis (Map), using indirect methods to screen Map deletion mutants for potential efficacy, have not been successful. A reduction in the capacity to survive in macrophages has not predicted the ability of mutants to survive in vivo. Previous studies for screening of three deletion mutants in cattle and goats revealed one mutant, with a deletion in relA (ΔMap/relA), could not establish a persistent infection. Further studies, using antigen presenting cells (APC), blood dendritic cells and monocyte derived DC, pulsed with ΔMap/relA or a 35 kDa Map membrane protein (MMP) revealed a component of the response to ΔMap/relA was directed towards MMP. As reported herein, we developed a bacterium viability assay and cell culture assays for analysis and evaluation of cytotoxic T cells generated against ΔMap/relA or MMP. Analysis of the effector activity of responding cells revealed the reason ΔMap/relA could not establish a persistent infection was that vaccination elicited development of cytotoxic CD8 T cells (CTL) with the capacity to kill intracellular bacteria. We demonstrated the same CTL response could be elicited with two rounds of antigenic stimulation of APC pulsed with ΔMap/relA or MMP ex vivo. Cytotoxicity was mediated through the perforin granzyme B pathway. Finally, cognate recognition of peptides presented in context of MHC I and II molecules to CD4 and CD8 T cells is required for development of CTL.

Twitter Demographics

The data shown below were collected from the profiles of 9 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 32 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 32 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 5 16%
Student > Doctoral Student 4 13%
Student > Ph. D. Student 3 9%
Student > Postgraduate 3 9%
Student > Master 3 9%
Other 6 19%
Unknown 8 25%
Readers by discipline Count As %
Veterinary Science and Veterinary Medicine 10 31%
Agricultural and Biological Sciences 6 19%
Biochemistry, Genetics and Molecular Biology 4 13%
Immunology and Microbiology 3 9%
Psychology 1 3%
Other 1 3%
Unknown 7 22%

Attention Score in Context

This research output has an Altmetric Attention Score of 5. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 October 2018.
All research outputs
#4,236,464
of 15,915,110 outputs
Outputs from Veterinary Research
#193
of 959 outputs
Outputs of similar age
#90,762
of 278,966 outputs
Outputs of similar age from Veterinary Research
#1
of 1 outputs
Altmetric has tracked 15,915,110 research outputs across all sources so far. This one has received more attention than most of these and is in the 73rd percentile.
So far Altmetric has tracked 959 research outputs from this source. They receive a mean Attention Score of 4.1. This one has done well, scoring higher than 79% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 278,966 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 67% of its contemporaries.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them