当前位置:科学网首页 > 小柯机器人 >详情
SARS-CoV-2可有效感染人类肠道上皮细胞
作者:小柯机器人 发布时间:2020/5/2 13:25:45

荷兰伊拉斯姆斯大学医学中心Hans Clevers、Bart L. Haagmans等研究人员合作发现,新冠病毒(SARS-CoV-2)可有效感染人类肠道上皮细胞。相关论文于2020年5月1日在线发表于《科学》。

研究人员利用共聚焦和电子显微镜证实,在人类小肠类器官(hSIO)中,肠细胞很容易被SARS-CoV和SARS-CoV-2感染。因此,显著滴度的感染性病毒颗粒能够被检测到。mRNA表达分析显示出病毒响应程序的强烈诱导。因此,肠上皮能够支持SARS-CoV-2的复制,而hSIO可作为冠状病毒感染和生物学的实验模型。
 
据悉,SARS-CoV-2可以引起2019冠状病毒病(COVID-19),这是一种流感样疾病,主要被认为是通过呼吸道传播感染肺。但是,临床证据表明,肠道可能是病毒的另一个靶器官。实际上,SARS-CoV-2受体血管紧张素转化酶2(ACE2)在分化的肠上皮细胞中高度表达。
 
附:英文原文

Title: SARS-CoV-2 productively infects human gut enterocytes

Author: Mart M. Lamers, Joep Beumer, Jelte van der Vaart, Kèvin Knoops, Jens Puschhof, Tim I. Breugem, Raimond B. G. Ravelli, J. Paul van Schayck, Anna Z. Mykytyn, Hans Q. Duimel, Elly van Donselaar, Samra Riesebosch, Helma J. H. Kuijpers, Debby Schippers, Willine J. van de Wetering, Miranda de Graaf, Marion Koopmans, Edwin Cuppen, Peter J. Peters, Bart L. Haagmans, Hans Clevers

Issue&Volume: 2020/05/01

Abstract: Abstract The virus severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2) can cause coronavirus disease 2019 (COVID-19), an influenza-like disease that is primarily thought to infect the lungs with transmission via the respiratory route. However, clinical evidence suggests that the intestine may present another viral target organ. Indeed, the SARS-CoV-2 receptor angiotensin converting enzyme 2 (ACE2) is highly expressed on differentiated enterocytes. In human small intestinal organoids (hSIOs), enterocytes were readily infected by SARS-CoV and SARS-CoV-2 as demonstrated by confocal- and electron-microscopy. Consequently, significant titers of infectious viral particles were detected. mRNA expression analysis revealed strong induction of a generic viral response program. Hence, intestinal epithelium supports SARS-CoV-2 replication, and hSIOs serve as an experimental model for coronavirus infection and biology

DOI: 10.1126/science.abc1669

Source: https://science.sciencemag.org/content/early/2020/04/30/science.abc1669

期刊信息
Science:《科学》,创刊于1880年。隶属于美国科学促进会,最新IF:41.037