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RESEARCH PRODUCT
Retinoic Acid affects Lung Adenocarcinoma growth by inducing differentiation via GATA6 activation and EGFR and Wnt inhibition
Laura SaievaChristian RolfoGiovanni ZitoStefano ForteClaudio GuzzardoStefania RaimondoGiovanna CalabreseFlores NaselliRiccardo AlessandroRosalba Parentisubject
0301 basic medicineAcute promyelocytic leukemiaScienceEGFRRetinoic acidMice NudeTretinoinBiologyArticle03 medical and health scienceschemistry.chemical_compoundDifferentiation therapySettore BIO/13 - Biologia ApplicataCarcinoma Non-Small-Cell LungCell Line TumorGATA6 Transcription FactormedicineRetinoic acidAnimalsHumansLung cancerProtein Kinase InhibitorsWnt Signaling PathwayTranscription factorCell ProliferationMultidisciplinaryQRWnt signaling pathwayCell Differentiationmedicine.diseaseG1 Phase Cell Cycle CheckpointsXenograft Model Antitumor Assaysrespiratory tract diseasesErbB Receptorslung cancerAnimals; Carcinoma Non-Small-Cell Lung; Cell Differentiation; Cell Line Tumor; Cell Proliferation; Drug Resistance Neoplasm; ErbB Receptors; G1 Phase Cell Cycle Checkpoints; GATA6 Transcription Factor; Humans; Mice Nude; Protein Kinase Inhibitors; Signal Transduction; Tretinoin; Wnt Signaling Pathway; Xenograft Model Antitumor Assays030104 developmental biologychemistryDrug Resistance NeoplasmImmunologyCancer researchMedicineAdenocarcinomaEngineering sciences. TechnologyTyrosine kinaseSignal Transductiondescription
AbstractA fundamental task in cancer research aims at the identification of new pharmacological therapies that can affect tumor growth. Differentiation therapy might exploit this function not only for hematological diseases, such as acute promyelocytic leukemia (APML) but also for epithelial tumors, including lung cancer. Here we show that Retinoic Acid (RA) arrests in vitro and in vivo the growth of Tyrosine Kinase Inhibitors (TKI) resistant Non Small Cell Lung Cancer (NSCLC). In particular, we found that RA induces G0/G1 cell cycle arrest in TKI resistant NSCLC cells and activates terminal differentiation programs by modulating the expression of GATA6, a key transcription factor involved in the physiological differentiation of the distal lung. In addition, our results demonstrate that RA inhibits EGFR and Wnt signaling activation, two pathways involved in NSCLC progression. Furthermore, we uncovered a novel mechanism in NSCLC that shows how RA exerts its function; we found that RA-mediated GATA6 activation is necessary for EGFR and Wnt inhibition, thus leading to 1) increased differentiation and 2) loss of proliferation. All together, these findings prove that differentiation therapy might be feasible in TKI resistant NSCLCs, and shed light on new targets to define new pharmacological therapies.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-12-15 |