Leptospira Interrogans
Leptospira Interrogans - Related Videos
08:51
A Modular Workflow for Quantitative, Structural and Functional Analysis of Leptospira Biofilms
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2025
This protocol delivers a modular, BSL-2 workflow combining crystal-violet biomass assays, time-lapse phase-contrast kinetics, confocal 3-D/matrix mapping, SEM ultrastructure, and an in vivo hamster infection module to cultivate, quantify, characterize and investigate Leptospira biofilm functional role, enabling standardized evaluation of mutants and anti-biofilm interventions across laboratories.
11:50
High-throughput Parallel Sequencing to Measure Fitness of Leptospira interrogans Transposon Insertion Mutants During Golden Syrian Hamster Infection
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Cited by 3 •
2017
We describe here a technique that combines transposon mutagenesis with high-throughput sequencing to identify and quantify transposon leptospiral mutants in tissues after a challenge of hamsters. This protocol can be used to screen mutants for survival and dissemination in animals and can also be applied to in vitro studies.
07:27
CRISPR Interference-Based Gene Silencing: A Technique for Targeted Repression of Gene Function in Pathogenic Leptospira
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2025
This video demonstrates a CRISPR interference-based gene silencing in pathogenic Leptospira. Targeted repression of gene expression using a CRISPR/Cas system that blocks mRNA formation helps identify candidate genes for pathological and pharmacological studies.
06:05
Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples
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2024
In this study, a dot-blot application was designed to detect Leptospira from the three main clades in water samples. This method allows for the identification of minimal DNA quantities specifically targeted by a digoxigenin-labeled probe, easily detected by an anti-digoxigenin antibody. This approach is a valuable and satisfactory tool for screening purposes.
14:49
Application of CRISPR Interference (CRISPRi) for Gene Silencing in Pathogenic Species of Leptospira
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Cited by 9 •
2021
Here, the application of CRISPR interference (CRISPRi) for specific gene silencing in Leptospira species is described. Leptospira cells are transformed by conjugation with plasmids expressing dCas9 (catalytically "dead" Cas9) and a single-guide RNA (sgRNA), responsible for base pairing to the desired genomic target. Methods to validate gene silencing are presented.
FAQs
Motility enables Leptospira interrogans to move beyond the initial entry site and disseminate through the bloodstream. This behavior connects a localized exposure involving broken skin or mucous membranes with infection of distant tissues. In immunology and infection research, tracking dissemination helps explain how bacterial movement contributes to systemic disease and organ involvement.
The organism’s ability to evade or modulate host immune defenses can influence whether infection is controlled or progresses. This interaction provides a framework for studying how pathogens alter immune recognition, inflammatory responses, and antibody activity. Understanding these mechanisms may reveal targets for improved diagnostics, antimicrobial treatment, vaccines, and other preventive strategies.
Pathogen recognition, inflammation, and antibody responses are central areas of investigation. Recognition helps characterize how the host detects infection, inflammation helps explain defensive activity and tissue injury, and antibodies provide information about adaptive immune responses. Examining these processes together gives researchers a broader view of host-pathogen interactions than studying any single response alone.
Kidney and liver damage represent important outcomes for examining the relationship between infection, immune responses, and tissue injury. Research can ask whether inflammatory processes and pathogen-associated effects accompany dysfunction in these organs. This organ-level perspective helps connect molecular immunology with the clinical consequences of leptospirosis and clarifies why disease can become severe.
Studies of Leptospira interrogans support the development of diagnostic tests by linking detectable infection with the organism and the host responses it provokes. Investigators can use knowledge of pathogen recognition and antibody responses to guide what diagnostic approaches should identify. Better testing can strengthen clinical evaluation and contribute to public health surveillance.
Research findings inform several complementary strategies, including antimicrobial treatment, surveillance, vaccines, and other preventive measures. Understanding dissemination, immune modulation, and organ injury helps define the problems that interventions must address. Surveillance supports public health monitoring, while vaccine and prevention research seeks to reduce the likelihood or consequences of future infection.