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Up-regulation of ACE2, the SARS-CoV-2 receptor, in asthmatics on maintenance inhaled corticosteroids
Respiratory Research ( IF 5.8 ) Pub Date : 2021-07-07 , DOI: 10.1186/s12931-021-01782-0
Sarah L O'Beirne 1, 2 , Jacqueline Salit 1 , Robert J Kaner 1, 2 , Ronald G Crystal 1, 2 , Yael Strulovici-Barel 1
Affiliation  

The first step in SARS-CoV-2 infection is binding of the virus to angiotensin converting enzyme 2 (ACE2) on the airway epithelium. Asthma affects over 300 million people world-wide, many of whom may encounter SARS-CoV-2. Epidemiologic data suggests that asthmatics who get infected may be at increased risk of more severe disease. Our objective was to assess whether maintenance inhaled corticosteroids (ICS), a major treatment for asthma, is associated with airway ACE2 expression in asthmatics. Large airway epithelium (LAE) of asthmatics treated with maintenance ICS (ICS+), asthmatics not treated with ICS (ICS−), and healthy controls (controls) was analyzed for expression of ACE2 and other coronavirus infection-related genes using microarrays. As a group, there was no difference in LAE ACE2 expression in all asthmatics vs controls. In contrast, subgroup analysis demonstrated that LAE ACE2 expression was higher in asthmatics ICS+ compared to ICS‾ and ACE2 expression was higher in male ICS+ compared to female ICS+ and ICS‾ of either sex. ACE2 expression did not correlate with serum IgE, absolute eosinophil level, or change in FEV1 in response to bronchodilators in either ICS− or ICS+. Airway ACE2 expression is increased in asthmatics on long-term treatment with ICS, an observation that should be taken into consideration when assessing the use of inhaled corticosteroids during the pandemic.

中文翻译:

ACE2(SARS-CoV-2 受体)在哮喘患者中上调维持吸入皮质类固醇

SARS-CoV-2 感染的第一步是病毒与气道上皮上的血管紧张素转化酶 2 (ACE2) 结合。哮喘影响全球超过 3 亿人,其中许多人可能会感染 SARS-CoV-2。流行病学数据表明,被感染的哮喘患者患更严重疾病的风险可能会增加。我们的目标是评估维持性吸入皮质类固醇 (ICS)(哮喘的主要治疗方法)是否与哮喘患者的气道 ACE2 表达相关。使用微阵列分析了用维持性 ICS (ICS+) 治疗的哮喘患者、未用 ICS 治疗的哮喘患者 (ICS-) 和健康对照(对照)的大气道上皮 (LAE) 的 ACE2 和其他冠状病毒感染相关基因的表达。作为一个组,所有哮喘患者与对照组的 LAE ACE2 表达没有差异。相比之下,亚组分析表明,哮喘患者 ICS+ 中的 LAE ACE2 表达高于 ICS‾,男性 ICS+ 中的 ACE2 表达高于女性 ICS+ 和任何性别的 ICS‾。在 ICS- 或 ICS+ 中,ACE2 表达与血清 IgE、绝对嗜酸性粒细胞水平或 FEV1 响应支气管扩张剂的变化无关。在长期使用 ICS 治疗的哮喘患者中,气道 ACE2 表达增加,在评估大流行期间吸入皮质类固醇的使用时应考虑到这一观察结果。或 FEV1 的变化以响应 ICS- 或 ICS+ 中的支气管扩张剂。在长期使用 ICS 治疗的哮喘患者中,气道 ACE2 表达增加,在评估大流行期间吸入皮质类固醇的使用时应考虑到这一观察结果。或 FEV1 的变化以响应 ICS- 或 ICS+ 中的支气管扩张剂。在长期使用 ICS 治疗的哮喘患者中,气道 ACE2 表达增加,在评估大流行期间吸入皮质类固醇的使用时应考虑到这一观察结果。
更新日期:2021-07-07
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