Protocols in Current Issue
    Maintenance and Quantitative Phenotyping of the Oomycete-plant Model Pathosystem Hyaloperonospora arabidopsidisArabidopsis
    Authors:  Fang-Yu Hwu and Martin Parniske, date: 06/20/2020, view: 443, Q&A: 0
    [Abstract] The interaction between the host plant Arabidopsis thaliana (Arabidopsis) and the oomycete Hyaloperonospora arabidopsidis (Hpa) is an established model system for the study of an obligate biotrophic downy mildew interaction. The evaluation of the developmental success of Hpa is often based on the quantification ...
    Differential Fractionation of Erythrocytes Infected by Plasmodium berghei
    Authors:  Bénédicte Gnangnon, Véronique Peucelle and Christine Pierrot, date: 06/05/2020, view: 369, Q&A: 0
    [Abstract] The study of host/pathogen interactions at the cellular level during Plasmodium intra-erythrocytic cycle requires differential extraction techniques aiming to analyze the different compartments of the infected cell. Various protocols have been proposed in the literature to study specific compartments and/or membranes in the infected ...
    RNA Extraction from Ears and Draining Lymph Nodes of Mice Infected with Leishmania amazonensis
    Authors:  Emilie Giraud and Evie Melanitou, date: 06/05/2020, view: 449, Q&A: 0
    [Abstract] Parasites of the genus Leishmania infect the mammalian hosts, including mice and humans and cause cutaneous or visceral leishmaniasis depending upon the parasite species transmitted by the vector sandfly. Leishmania amazonensis is one of the Leishmania species responsible for the cutaneous form of the disease. We have ...
    Bacterial Lawn Avoidance and Bacterial Two Choice Preference Assays in Caenorhabditis elegans
    Authors:  Jogender Singh and Alejandro Aballay, date: 05/20/2020, view: 599, Q&A: 0
    [Abstract] Physical avoidance of pathogens is a crucial defense strategy used by the host to reduce pathogen infection. Hosts display the use of multiple strategies to sense and avoid pathogens, ranging from olfaction to sensing of damage caused by pathogen infection. Understanding various mechanisms of pathogen avoidance has the potential to uncover ...
    HIV-CRISPR: A CRISPR/Cas9 Screening Method to Identify Genes Affecting HIV Replication
    Authors:  Ferdinand Roesch and Molly OhAinle, date: 05/05/2020, view: 703, Q&A: 0
    [Abstract] Screening with CRISPR/Cas9 technology has already led to significant discoveries in the fields of cancer biology, cell biology and virology. Because of the relatively low false discovery rates and the ability to perform high-throughput, pooled approaches, it has rapidly become the assay of choice for screening studies, including whole-genome ...
    Quantification of Bacteria Residing in Caenorhabditis elegans Intestine
    Authors:  M. Fernanda Palominos and Andrea Calixto, date: 05/05/2020, view: 833, Q&A: 0
    [Abstract] Quantification of intestinal colonization by pathogenic or commensal bacteria constitute a critical part of the analysis to understand host-microbe interactions during different time points of their interplay. Here we detail a method to isolate non-pathogenic and pathogenic bacteria from C. elegans intestines, and classify gut phenotypes ...
    A Triple-challenge Mouse Model of Allergic Airway Disease, Primary Influenza Infection, and Secondary Bacterial Infection
    Authors:  Sean Roberts, Clare M Williams, Sreeja Roy and Yoichi Furuya, date: 04/20/2020, view: 546, Q&A: 0
    [Abstract] Asthma is a global problem that affects millions of individuals. An increased risk of respiratory viral and bacterial infections is one of the complications of asthma. We recently reported that mice with ovalbumin-induced allergic airway disease (AAD) are protected against influenza-Streptococcus pneumoniae co-infection. Here, we describe ...
    Purification of Rice Stripe Virus
    Authors:  Gang Lu, Min Yao, Yijun Zhou and Xiaorong Tao, date: 03/20/2020, view: 593, Q&A: 0
    [Abstract] Although many spherical and rod-shaped plant virus purification protocols are now available, only a few protocols on filamentous plant virus purification have been published. Here, we report a protocol for large-scale purification of Rice stripe virus (RSV) from RSV-infected rice tissues. RSV virions with high infectivity were first precipitated ...
    Zebrafish Bacterial Infection Assay to Study Host-Pathogen Interactions
    Authors:  Faiza Basheer, Clifford Liongue and Alister C Ward, date: 03/05/2020, view: 706, Q&A: 0
    [Abstract] The study of host-pathogen interactions has improved our understanding of both pathogenesis and the response of the host to infection, including both innate and adaptive responses. Neutrophils and macrophages represent the first line of innate host defense against any infection. The zebrafish is an ideal model to study the response of these cells ...
    Transcervical Mouse Infections with Chlamydia trachomatis and Determination of Bacterial Burden
    Authors:  Karthika Rajeeve and Rajeeve Sivadasan, date: 02/05/2020, view: 1051, Q&A: 0
    [Abstract] Chlamydia trachomatis is an obligate human pathogen. It infects the genital tract of humans ascending into the fallopian tube, exacerbated by chronic pelvic pain, pelvic inflammatory disease, and fallopian tube scaring resulting in infertility and other malignancies. The major hurdle in controlling chlamydial spread is that the ...

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