Sympathetic Neurons Promote Small Cell Lung Cancer through the β2-Adrenergic Receptor

Cancer Discov. 2025 Mar 3;15(3):616-632. doi: 10.1158/2159-8290.CD-24-0718.

Abstract

SCLC is highly aggressive, with limited effective treatment options. We show that ablating sympathetic nerves or inhibiting the ADRB2 receptor slows SCLC progression and prolongs survival in mice. Additionally, ADRB2 inhibition reduces the growth of human SCLC organoids and xenografts by disrupting PKA signaling, identifying a new therapeutic target.

MeSH terms

  • Animals
  • Cell Line, Tumor
  • Humans
  • Lung Neoplasms* / drug therapy
  • Lung Neoplasms* / metabolism
  • Lung Neoplasms* / pathology
  • Mice
  • Receptors, Adrenergic, beta-2* / genetics
  • Receptors, Adrenergic, beta-2* / metabolism
  • Signal Transduction
  • Small Cell Lung Carcinoma* / drug therapy
  • Small Cell Lung Carcinoma* / metabolism
  • Small Cell Lung Carcinoma* / pathology
  • Xenograft Model Antitumor Assays

Substances

  • Receptors, Adrenergic, beta-2