Possible association between SP-C mutations and lung cancer: Two case reports and review of literature

Cancer Treat Res Commun. 2021:29:100461. doi: 10.1016/j.ctarc.2021.100461. Epub 2021 Sep 22.

Abstract

Surfactant protein C (SP-C) is one of four surfactant proteins produced by type II pneumocytes. Mutations in surfactant protein A are strongly associated with development of lung cancer. Mutations in the SP-C gene are rare and are associated with interstitial lung disease in the pediatric age group. We describe two patients with SP-C mutations who developed lung cancer. Both patients had concurrent interstitial lung disease, although the clinical phenotype was variable. In both cases, mutations were in translated region of the SP-C gene; one in the BRICHOS domain and the other in the transmembrane domain. Our paper suggests that patients with SP-C mutations can be at increased risk for the development of lung cancer, and it's reasonable to follow them routinely.

Keywords: Adenocarcinoma; Lung cancer; SP-C; Surfactant.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Adult
  • Female
  • Humans
  • Lung Neoplasms / genetics*
  • Lung Neoplasms / pathology
  • Male
  • Middle Aged
  • Mutation
  • Pulmonary Surfactant-Associated Protein C / metabolism*

Substances

  • Pulmonary Surfactant-Associated Protein C
  • SFTPC protein, human