0000000000181509

AUTHOR

Le Zhang

showing 3 related works from this author

BCL-XL inhibition induces an FGFR4-mediated rescue response in colorectal cancer

2022

The heterogeneous therapy response observed in colorectal cancer is in part due to cancer stem cells (CSCs) that resist chemotherapeutic insults. The anti-apoptotic protein BCL-XL plays a critical role in protecting CSCs from cell death, where its inhibition with high doses of BH3 mimetics can induce apoptosis. Here, we screen a compound library for synergy with low-dose BCL-XL inhibitor A-1155463 to identify pathways that regulate sensitivity to BCL-XL inhibition and reveal that fibroblast growth factor receptor (FGFR)4 inhibition effectively sensitizes to A-1155463 both in vitro and in vivo. Mechanistically, we identify a rescue response that is activated upon BCL-XL inhibition and leads …

MaleBH3 mimeticsIndolesAxitinibColonDrug Evaluation Preclinicalbcl-X Proteincolorectal cancerMice SCIDGeneral Biochemistry Genetics and Molecular BiologyresistanceMice Inbred NODstem cellsCell Line TumorBCL-XLBCL-XL FGFR4 colorectal cancer apoptosis.AnimalsHumansReceptor Fibroblast Growth Factor Type 4BenzothiazolesAgedCell DeathDrug SynergismMiddle AgedIsoquinolinesOrganoidsNeoplastic Stem CellsFGFR4FemaleMCL-1Colorectal NeoplasmsCell reports
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FACS-based protocol to assess cytotoxicity and clonogenic potential of colorectal cancer stem cells using a Wnt/β-catenin signaling pathway reporter

2021

Summary Cancer stem cells (CSCs) play a key role in tumor initiation and progression. A real-time tool to evaluate the activation of CSC-specific signaling pathways is crucial for the study of this cancer cell subset. Here, we present a protocol to monitor, in vitro, the activation of Wnt/β-catenin signaling pathway, which is considered a functional biomarker for colorectal CSCs (CR-CSCs). This flow-cytometry-based protocol allows it to isolate CR-CSCs and to evaluate their cytotoxicity upon anti-tumor treatments. For complete details on the use and execution of this protocol, please refer to Di Franco et al. (2021).

Science (General)Colorectal cancerTumor initiationBiologyGeneral Biochemistry Genetics and Molecular BiologyQ1-390Cancer stem cellmedicineProtocolHumansFlow Cytometry/Mass CytometryClonogenic assayWnt Signaling PathwayCancerGeneral Immunology and MicrobiologyGeneral NeuroscienceStem CellsWnt signaling pathwayCancerCell Biologymedicine.diseaseFlow CytometryMolecular/Chemical ProbesCancer cellcolorectal cancers cancer stem cells FACS Wnt.Cell isolationCancer researchNeoplastic Stem CellsCell-based AssaysStem cellSettore MED/46 - Scienze Tecniche Di Medicina Di LaboratorioColorectal NeoplasmsSignal TransductionSTAR Protocols
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Additive effects of cherlerythrine chloride combination with erlotinib in human non-small cell lung cancer cells

2017

Several studies implicate that lung cancer progression is governed by the interaction between epidermal growth factor receptor (EGFR) signaling and protein kinase C (PKC) pathways. Combined the targeting of EGFR and PKC may have an additive or synergistic effects in lung cancer treatment. The aim of this study is to explore the potential utility by inhibiting these two pathways with the combination of erlotinib and chelerythrine chloride in non-small cell lung cancer (NSCLC) cell lines. The erlotinib-less sensitive cell lines SK-MES-1 and A549 were treated with erlotinib or chelerythrine by themselves or in combination with each other. The cell viability, clonogenic survival, cell migration…

Male0301 basic medicineOncologyCell signalingLung NeoplasmsCancer Treatmentlcsh:MedicineApoptosisMice SCIDSignal transductionLung and Intrathoracic TumorsMicechemistry.chemical_compoundMice Inbred NODCarcinoma Non-Small-Cell LungMedicine and Health SciencesEpidermal growth factor receptorPhosphorylationlcsh:ScienceErlotinib HydrochlorideMultidisciplinaryCell DeathbiologyPharmaceuticsChemistrySignaling cascadesFlow CytometryErbB ReceptorsCell MotilityOncologyCell ProcessesDrug Therapy CombinationErlotinibSignal transductionEGFR signalingResearch Articlemedicine.drugmedicine.medical_specialtyMAPK signaling cascadesCell MigrationErlotinib Hydrochloride03 medical and health sciencesDrug TherapyCell Line TumorInternal medicinemedicineAnimalsHumansViability assayLung cancerBenzophenanthridineslcsh:RCancers and NeoplasmsBiology and Life SciencesCell Biologymedicine.diseaseXenograft Model Antitumor AssaysNon-Small Cell Lung Cancerrespiratory tract diseases030104 developmental biologyChelerythrineApoptosisCancer researchbiology.proteinlcsh:QDevelopmental BiologyPLOS ONE
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