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Chinese Journal of Critical Care & Intensive Care Medicine(Electronic Edition) ›› 2022, Vol. 08 ›› Issue (02): 167-172. doi: 10.3877/cma.j.issn.2096-1537.2022.02.013

• Review • Previous Articles     Next Articles

Research progress on the function of surfactant protein -D and its role in the common lung diseases

Juanli Liu1, Siqing Ma2,(), Qiang Chen2   

  1. 1. Department of Critical Care Medicine, Qinghai Provincial People′s Hospital, Xining 810007, China; Plateau Medical Center of Qinghai University, Xining 810001, China
    2. Department of Critical Care Medicine, Qinghai Provincial People′s Hospital, Xining 810007, China
  • Received:2022-02-16 Online:2022-07-04 Published:2022-07-05
  • Contact: Siqing Ma

Abstract:

Lung surfactant protein D (SP-D) is a glycoprotein of the lectin family. In lungs it is synthesized and secreted mainly in the alveolar type Ⅱ epithelial cells and non-ciliated bronchiole epithelial cells, and are stored in secretory granules of Clara cells. SP-D is one of the surfactant binding proteins and is also a part of the pulmonary surfactant system. In addition to contributing to the homeostasis of surfactant pools in alveolar space, SP-D also exhibits functions of host defense and immunoregulation. This paper summarizes some relevant studies on SP-D in acute lung diseases in recent years, providing important theoretical basis for the potential treatment of many lung diseases, especially in inflammatory lung diseases.

Key words: Surfactant proteins D, Homeostasis of surfactant pools, Host defense, Immune regulation

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