Selective Tropism of Dengue Virus for Human Glycoprotein Ib

• Published in: Scientific reports Vol. 8; no. 1; pp. 2688 - 11
• Main Authors: Attatippaholkun, Nattapol, Kosaisawe, Nont, U-Pratya, Yaowalak, Supraditaporn, Panthipa, Lorthongpanich, Chanchao, Pattanapanyasat, Kovit, Issaragrisil, Surapol
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 09.02.2018; Nature Publishing Group; Nature Portfolio
• Subjects: 13/106; 13/2; 13/31; 38/77; 631/326/596/2557; 692/699/255/2514; Apoptosis; Blood Platelets - metabolism; Cell Line; Cells, Cultured; Correlation coefficient; Dengue - virology; Dengue fever; Dengue hemorrhagic fever; Dengue Virus - immunology; Dengue Virus - pathogenicity; Dengue Virus - physiology; Flow cytometry; Flow Cytometry - methods; Glycoproteins; Hemorrhage; Humanities and Social Sciences; Humans; Megakaryocytes - physiology; multidisciplinary; Platelet Glycoprotein GPIb-IX Complex - metabolism; Platelet Glycoprotein GPIb-IX Complex - physiology; Platelet Glycoprotein GPIIb-IIIa Complex - metabolism; Platelet Membrane Glycoprotein IIb - physiology; Science; Science (multidisciplinary); Severe Dengue - metabolism; Tropism; Vector-borne diseases; Viral Tropism - physiology
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-018-20914-z

Since the hemorrhage in severe dengue seems to be primarily related to the defect of the platelet, the possibility that dengue virus (DENV) is selectively tropic for one of its surface receptors was investigated. Flow cytometric data of DENV-infected megakaryocytic cell line superficially expressing human glycoprotein Ib (CD42b) and glycoprotein IIb/IIIa (CD41 and CD41a) were analyzed by our custom-written software in MATLAB. In two-dimensional analyses, intracellular DENV was detected in CD42b + , CD41 + and CD41a + cells. In three-dimensional analyses, the DENV was exclusively detected in CD42b + cells but not in CD42b − cells regardless of the other expressions. In single-cell virus-protein analyses, the amount of DENV was directly correlated with those of CD42b at the Pearson correlation coefficient of 0.9. Moreover, RT- PCR and apoptosis assays showed that DENV was able to replicate itself and release its new progeny from the infected CD42b + cells and eventually killed those cells. These results provide evidence for the involvement of CD42b in DENV infection.