Abstract
ABSTRACTHuman macrophages are hosts forMycobacterium tuberculosis, the causative agent of tuberculosis, which killed approximately 1.87 million people in 1997. Human alveolar macrophages do not express α- or β-defensins, broad-spectrum antimicrobial peptides which are expressed in macrophages from other species more resistant to infection withM. tuberculosis. It has been previously reported thatM. tuberculosisis susceptible to killing by defensins, which may explain the difference in resistance. Defensin peptides have been suggested as a possible therapeutic strategy for a variety of infectious diseases, but development has been hampered by difficulties in their large-scale production. Here we report the cellular synthesis of human β-defensin 2 via highly efficient mRNA transfection of human macrophages. This enabled mycobactericidal and mycobacteristatic activity by the macrophages. Although human macrophages are difficult to transfect with plasmid vectors, these studies illustrate that primary macrophages are permissive for mRNA transfection, which enabled expression of a potentially therapeutic protein.
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Dates
Type | When |
---|---|
Created | 23 years, 1 month ago (July 27, 2002, 6:01 a.m.) |
Deposited | 2 years, 4 months ago (April 23, 2023, 11:31 a.m.) |
Indexed | 5 months ago (March 27, 2025, 4:59 p.m.) |
Issued | 24 years, 4 months ago (April 1, 2001) |
Published | 24 years, 4 months ago (April 1, 2001) |
Published Print | 24 years, 4 months ago (April 1, 2001) |
@article{Kisich_2001, title={Antimycobacterial Agent Based on mRNA Encoding Human β-Defensin 2 Enables Primary Macrophages To Restrict Growth ofMycobacterium tuberculosis}, volume={69}, ISSN={1098-5522}, url={http://dx.doi.org/10.1128/iai.69.4.2692-2699.2001}, DOI={10.1128/iai.69.4.2692-2699.2001}, number={4}, journal={Infection and Immunity}, publisher={American Society for Microbiology}, author={Kisich, Kevin O. and Heifets, Leonid and Higgins, Michael and Diamond, Gill}, editor={Kozel, T. R.}, year={2001}, month=apr, pages={2692–2699} }