Evaluation of the CIB1R peptide derived from the cytoplasmic domain of neprilysin on cell migration in an in vitro model of lung cancer - Takeaways - MDSpire

Evaluation of the CIB1R peptide derived from the cytoplasmic domain of neprilysin on cell migration in an in vitro model of lung cancer

  • By

  • Carlos Alejandro Martínez-Armenta

  • Horacio Almanza-Reyes

  • Leslie Patrón-Romero

  • Adriana Sampayo-Reyes

  • Juan M. Alcocer-González

  • Reyes Tamez-Guerra

  • Cristina Rodríguez-Padilla

  • Humberto Antonio Salazar-Sesatty

  • Omar Zardain-Medlich-Ducoulombier

  • Francisco González-Salazar

  • Javier Vargas-Villarreal

  • June 23, 2026

  • 0 min

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  • 1

    The CIB1R peptide, derived from neprilysin, was evaluated for its effects on lung cancer cell migration and invasion in vitro.

  • 2

    CIB1R reduced cell migration and invasion in A549 cells in a dose-dependent manner without significantly affecting cell viability.

  • 3

    Similar inhibitory effects were observed with related peptides, indicating that the activity may not be strictly sequence-specific.

  • 4

    All peptides demonstrated strong cell-associated fluorescence signals, but the study could not definitively distinguish their localization.

  • 5

    The findings suggest that short cationic peptides from neprilysin's cytoplasmic domain can modulate tumor progression-related behaviors.

Original Source(s)

Evaluation of the CIB1R peptide derived from the cytoplasmic domain of neprilysin on cell migration in an in vitro model of lung cancer

  • by Carlos Alejandro Martínez-Armenta, Horacio Almanza-Reyes, Leslie Patrón-Romero, Adriana Sampayo-Reyes, Juan M. Alcocer-González, Reyes Tamez-Guerra, Cristina Rodríguez-Padilla, Humberto Antonio Salazar-Sesatty, Omar Zardain-Medlich-Ducoulombier, Francisco González-Salazar, Javier Vargas-Villarreal

  • June 23, 2026

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