Related Experiment Video
Updated: Jul 11, 2026

Portable Paper-Based Immunoassay Combined with Smartphone Application for Colorimetric and Quantitative Detection of Dengue NS1 Antigen
Published on: January 26, 2024
Secreted complement regulatory protein clusterin interacts with dengue virus nonstructural protein 1
Takeshi Kurosu1, Panjaporn Chaichana, Masanobu Yamate
1Research Collaboration Center on Emerging and Re-emerging Infections (RCC-ERI), Tiwanon Rd, Muang, Nonthaburi 11000, Thailand. tkurosu@biken.osaka-u.ac.jp
Abstract:
Vascular leakage and shock are the major causes of death in patients with dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS). It has been suggested that patients with an elevated level of the free soluble form of dengue virus (DV) nonstructural protein 1 (sNS1) are at risk of developing DHF. To understand the role of sNS1 in blood, we searched for the host molecule with which NS1 interacts in human plasma by affinity purification using a GST-fused NS1. Complement inhibitory factor clusterin (Clu), which naturally inhibits the formation of terminal complement complex (TCC), was identified by mass spectrometry. A recombinant sNS1 produced from 293T cells and sNS1 from DV-infected Vero cells interacted with human Clu. Since an activated complement system reportedly causes vascular leakage, the interaction between sNS1 and Clu may contribute to the progression of DHF.
Related Concept Videos
Leaky Scanning
Complement System
Inhibitors Of Virion Release
Vesicular Tubular Clusters
With the help of motor proteins such...
Coronavirus

