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Design and Cytotoxicity Evaluation of a Cancer-targeting Immunotoxin Based on a Camelid Nanobody-PE Fusion Protein.
Iran J Immunol
December 2024
Applied Microbiology Research Center, Biomedicine Technologies Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Background: Developing effective targeted treatment approaches to overcome drug resistance remains a crucial goal in cancer research. Immunotoxins have dual functionality in cancer detection and targeted therapy.
Objective: This study aimed to engineer a recombinant chimeric fusion protein by combining a nanobody-targeting domain with an exotoxin effector domain.
HIV-1 exploits LBPA-dependent intraepithelial trafficking for productive infection of human intestinal mucosa.
PLoS Pathog
December 2024
Amsterdam UMC, location University of Amsterdam, Experimental Immunology, Amsterdam, The Netherlands.
The gastrointestinal tract is a prominent portal of entry for HIV-1 during sexual or perinatal transmission, as well as a major site of HIV-1 persistence and replication. Elucidation of underlying mechanisms of intestinal HIV-1 infection are thus needed for the advancement of HIV-1 curative therapies. Here, we present a human 2D intestinal immuno-organoid system to model HIV-1 disease that recapitulates tissue compartmentalization and epithelial-immune cellular interactions.
View Article and Find Full Text PDFGender and Intersecting Barriers and Facilitators to Access the HIV Cascade of Care in Manitoba, Canada, Before and During the COVID-19 Pandemic: A Qualitative Study.
Trop Med Infect Dis
November 2024
Department of Medical Microbiology and Infectious Diseases, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada.
Marginalized groups in Manitoba, Canada, especially females and people who inject drugs, are overrepresented in new HIV diagnoses and disproportionately affected by HIV and structural disadvantages. Informed by syndemic theory, our aim was to understand people living with HIV's (PLHIV) gendered and intersecting barriers and facilitators across the cascade of HIV care before and during the COVID-19 pandemic. This study was co-designed and co-led alongside people with lived experience and a research advisory committee.
View Article and Find Full Text PDFTransendothelial migration of the Lyme disease spirochete involves spirochete internalization as an intermediate step through a transcellular pathway that involves Cdc42 and Rac1.
Microbiol Spectr
December 2024
Department of Biochemistry & Molecular Biology, University of Calgary, Calgary, Alberta, Canada.
Despite its importance in pathogenesis, the hematogenous dissemination pathway of is still largely uncharacterized. To probe the molecular details of transendothelial migration more easily, we studied this process using cultured primary or telomerase-immortalized human microvascular endothelial cells in a medium that maintains both the human cells and the spirochetes. In -infected monolayers, we observed ~55% of wild-type spirochetes crossing the monolayer.
View Article and Find Full Text PDFX-ray-Triggered Activation of Polyprodrugs for Synergistic Radiochemotherapy.
Biomacromolecules
December 2024
School of Chemistry, Xi'an Key Laboratory of Sustainable Polymer Materials, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China.
X-ray-induced photodynamic therapy (XPDT) can penetrate deeply into the tumor tissues to overcome the disadvantage of conventional PDT. However, the therapeutic efficacy of XPDT in cancer therapy is still restricted due to the insufficient reactive oxygen species (ROS) generation at a relatively low irradiation dosage. Herein, we present the tumor pH and ROS-responsive polyprodrug micelles to load the X-ray photosensitizer verteporfin (VP) as an ROS production enhancer.
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