Commentary on the Truncated Splice Variant of the GM-CSF Receptor Beta-Chain in Peripheral Blood Serves as Severity Biomarker of Respiratory Failure in Newborns.

Commentary on the Truncated Splice Variant of the GM-CSF Receptor Beta-Chain in Peripheral Blood Serves as Severity Biomarker of Respiratory Failure in Newborns.
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DOI:
10.1159/000514639
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发表时间:
2021
期刊:
影响因子:
2.5
通讯作者:
Jobe AH
Jobe AH
中科院分区:
医学2区
文献类型:
--
作者:
Whitsett JA;Jobe AH

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在本期中,Schulte 等人[1]报告的新数据表明,与没有呼吸道症状和体征的新生儿相比,患有呼吸道疾病的新生儿外周血细胞中 GM-CSFR (IT) mRNA 的表达增加。由于 GM-CSFR (IT) 是一种截短的受体亚型,可抑制单核细胞和巨噬细胞中的 GM-CSF 信号传导,因此其表达可能会抑制依赖于 GM-CSF 的细胞过程,包括肺表面活性剂分解代谢和肺部先天宿主防御。抑制性 GM-CSF 受体片段水平的增加提供了抑制表面活性剂分解代谢的潜在机制,从而增强了表面活性剂池作为新生儿呼吸系统疾病的适应性反应。这些发现有助于强调控制新生儿肺表面活性物质稳态的一些复杂的细胞和分子机制。
In this issue, Schulte et al.[1] report novel data demonstrating increased expression of GM-CSFR (IT) mRNA in peripheral blood cells of newborn infants with respiratory illness compared to those without respiratory signs and symptoms. Since GM-CSFR (IT) is a truncated receptor isoform that inhibits GM-CSF signaling in monocytes and macrophages, its expression may inhibit cellular processes dependent upon GM-CSF, including pulmonary surfactant catabolism and innate host defense in the lung. Increased levels of the inhibitory GM-CSF receptor fragment provide potential mechanisms to inhibit surfactant catabolism, thereby enhancing surfactant pools as an adaptive response to respiratory illness in neonates. The findings serve to highlight some of the complex cellular and molecular mechanisms controlling surfactant homeostasis in the neonatal lung.
DOI: 10.1159/000513356
发表时间: 2021-03-30
期刊: NEONATOLOGY
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肺泡巨噬细胞从胎儿单核细胞中发展,这些单核细胞在生命的第一周通过GM-CSF分化为长寿命细胞。
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