Nicotinamide adenine dinucleotide kinase promotes lymph node metastasis of NSCLC via activating ID1 expression through BMP pathway

Int J Biol Sci. 2023 Jun 19;19(10):3184-3199. doi: 10.7150/ijbs.84322. eCollection 2023.

Abstract

Metastasis is a significant cause of high mortality in lung cancer. Lymph node (LN) metastasis is the most common metastatic pathway in non-small cell lung cancer and the most crucial factor affecting the prognosis of NSCLC. Nevertheless, the molecular mechanism underlying metastasis is unknown. We demonstrated that higher NADK expression suggests worsened survival prognosis, and NADK expression positively correlates with the lymph node metastasis rate and TNM and AJCC stages in NSCLC patients. Moreover, patients with LN metastasis show higher NADK expression than those without LN metastasis. NADK can promote NSCLC progression by enhancing the migration, invasion, lymph node metastasis and growth of NSCLC cells. Mechanistically, NADK inhibits the ubiquitination and degradation of BMPR1A by interacting with Smurf1, further activating the BMPs signalling pathway and promoting ID1 transcription. In conclusion, NADK may be a potential diagnostic indicator and a novel therapeutic target for metastatic NSCLC.

Keywords: BMPs signalling; Inhibitor of differentiation 1.; Lymph node metastasis; NAD Kinase; Non-small cell lung cancer (NSCLC).

MeSH terms

  • Carcinoma, Non-Small-Cell Lung* / metabolism
  • Gene Expression Regulation, Neoplastic / genetics
  • Humans
  • Inhibitor of Differentiation Protein 1 / genetics
  • Inhibitor of Differentiation Protein 1 / metabolism
  • Lung Neoplasms* / metabolism
  • Lymphatic Metastasis
  • NAD / metabolism
  • Signal Transduction / genetics

Substances

  • NAD
  • ID1 protein, human
  • Inhibitor of Differentiation Protein 1