Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Kalani, BS; Najafi, M; Mohammadzadeh, R; Razavi, S; Ohadi, E; Norkhoda, Sadeghifard; Irajian, G.
Targeting Listeria monocytogenes consensus sequence of internalin genes using an antisense molecule.
Microb Pathog. 2019; 136: 103689
Doi: 10.1016/j.micpath.2019.103689
Web of Science
PubMed
FullText
FullText_MUG
- Co-Autor*innen der Med Uni Graz
- Mohammadzadeh Rokhsareh
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- Abstract:
- As an intracellular pathogen, Listeria monocytogenes can enter host cells where it can replicate and escape detection and eradication by the host immune response making the clearance of infection very challenging. Furthermore, with the advent of antimicrobial resistance, the need for alternative targets is inevitable. Internalin proteins are crucial to this bacterium as they contribute to bacterial entry to the systemic circulation. In this study, we targeted a highly conserved region of these proteins by an antisense sequence that was covalently conjugated to the cell penetrating peptides (CPP) to overcome the challenging delivery barriers. Then, we evaluated the efficiency of this construct in vitro. We also assessed the antigenicity, cytotoxicity, and probability of apoptosis induction by this construct. The studied CPP-PNA inhibited bacterial growth and suppressed the mRNA expression of internalins in a dose-dependent manner. In addition, at all studied concentrations, CPP-PNA significantly reduced the invasion rate of L. monocytogenes in the examined cell lines. Moreover, different concentrations of CPP-PNA did not have a significant antigenic, cytotoxic, and apoptotic properties compared to the control. These results suggest the effectiveness of CPP-antisense in targeting the mRNAs of internalins for various research, therapeutic and preventive purposes. However, additional research is required to evaluate the potency, safety, and pharmacokinetics of this compound for the prevention and treatment of listeriosis.
- Find related publications in this database (using NLM MeSH Indexing)
- Anti-Bacterial Agents - metabolism, toxicity
- Bacterial Proteins - antagonists & inhibitors, genetics
- Caco-2 Cells - administration & dosage
- Cell Survival - drug effects
- Cell-Penetrating Peptides - metabolism, toxicity
- Consensus Sequence - administration & dosage
- Endocytosis - drug effects
- HeLa Cells - administration & dosage
- Humans - administration & dosage
- Listeria monocytogenes - drug effects, genetics
- Listeriosis - prevention & control
- Microbial Sensitivity Tests - administration & dosage
- Oligodeoxyribonucleotides, Antisense - genetics, metabolism, toxicity
- Find related publications in this database (Keywords)
- Listeria monocytogenes
- Intemalin
- Antisense
- Cell penetrating peptide
- Cell culture