0000000000925395

AUTHOR

Michaela Semeraro

showing 2 related works from this author

NKp30 isoforms and NKp30 ligands are predictive biomarkers of response to imatinib mesylate in metastatic GIST patients

2016

International audience; Despite effective targeted therapy acting on KIT and PDGFRA tyrosine kinases, gastrointestinal stromal tumors (GIST) escape treatment by acquiring mutations conveying resistance to imatinib mesylate (IM). Following the identification of NKp30-based immunosurveillance of GIST and the off-target effects of IM on NK cell functions, we investigated the predictive value of NKp30 isoforms and NKp30 soluble ligands in blood for the clinical response to IM. The relative expression and the proportions of NKp30 isoforms markedly impacted both event-free and overall survival, in two independent cohorts of metastatic GIST. Phenotypes based on disbalanced NKp30B/NKp30C ratio (Del…

0301 basic medicinemedicine.medical_treatmentImmunologyPDGFRATargeted therapy03 medical and health sciences0302 clinical medicinemedicineImmunology and Allergy[ SDV.IMM ] Life Sciences [q-bio]/ImmunologyneoplasmsOriginal ResearchTumor microenvironmentGiSTbusiness.industryCancermedicine.diseasedigestive system diseases3. Good healthImmunosurveillance030104 developmental biologyImatinib mesylateOncology030220 oncology & carcinogenesisImmunologyCancer research[SDV.IMM]Life Sciences [q-bio]/ImmunologybusinessTyrosine kinase
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Chemotherapy-induced antitumor immunity requires formyl peptide receptor 1.

2015

How dying tumor cells get noticed Besides killing tumor cells directly, some chemotherapies, such as anthracyclines, also activate the immune system to kill tumors. Vacchelli et al. discovered that in mice, anthracycline-induced antitumor immunity requires immune cells to express the protein formyl peptide receptor 1 (FPR1). Dendritic cells (DCs) near tumors expressed especially high amounts of FPR1. DCs normally capture fragments of dying tumor cells and use them to activate nearby T cells to kill tumors, but DCs lacking FPR1 failed to do this effectively. Individuals with breast or colon cancer expressing a variant of FPR1 and treated with anthracyclines showed poor metastasis-free and ov…

AnthracyclineColorectal cancermedicine.medical_treatmentT-LymphocytesBreast Neoplasmsmicrofluidic chipchemotherapyPolymorphism Single NucleotideFormyl peptide receptor 1immune responseMiceImmune systemImmunityCell Line TumorNeoplasmsmedicineLeukocytesAnimalsHumansAnthracyclinesAllelesAnnexin A1ChemotherapyMultidisciplinarybusiness.industryDendritic Cellsmedicine.diseaseReceptors Formyl PeptideImmunity InnateChemotherapy AdjuvantCancer cellImmunologyCancer researchFemalebusinessColorectal NeoplasmsAdjuvantFPR1 microfluidicScience (New York, N.Y.)
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