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MicroRNA 15a and 16 Regulate Proteostasis in Non-Small Cell Lung Cancer

Patrick J Ryan1, Bethany C Guerra1, Peter Nghiem2

  • 1Muscle Biology Laboratory, Department of Kinesiology and Sports Management Texas A&M University College Station Texas USA.

FASEB Bioadvances
|May 4, 2026
PubMed

Insights

MicroRNAs miR15a/16 regulate protein anabolism in non-small cell lung cancer (NSCLC). This discovery identifies novel metabolic regulators and potential therapeutic targets for lung cancer treatment.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Aberrant anabolic activity is a hallmark of cancer, yet its regulators in cancer remain incompletely understood.
  • MicroRNAs (miRNAs) are small regulatory molecules with potential roles in maintaining protein homeostasis (proteostasis).

Purpose of the Study:

  • To investigate the role of co-transcribed miR15a and miR16 (miR15a/16) in regulating protein metabolism and pathophysiology in non-small cell lung cancer (NSCLC).

Main Methods:

  • Utilized cellular models of NSCLC.
  • Transfected cells with miR15a/16 mimetics.
  • Analyzed gene regulation in metabolic and pathological pathways.
  • Assessed cell growth and protein synthesis rates.

Main Results:

  • miR15a/16 were found to regulate genes involved in protein metabolism.
  • Transfection with miR15a/16 mimetics led to decreased cell growth in NSCLC models.
  • Protein synthesis rates were reduced following miR15a/16 mimic transfection.

Conclusions:

  • miR15a/16 function as regulators of protein anabolism in NSCLC.
  • These miRNAs represent novel metabolic regulators with potential as therapeutic targets for lung cancer.
Keywords:
anabolismcancermetabolismmicroRNAproteostasis

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