0000000000855823

AUTHOR

Laura Lahtinen

0000-0001-7559-2168

showing 3 related works from this author

EGFR gene copy number decreases during anti-EGFR antibody therapy in colorectal cancer

2018

Epidermal growth factor receptor (EGFR) gene copy number (GCN) increase is associated with a favorable anti-EGFR antibody treatment response in RAS wild-type metastatic colorectal cancer. However, there are limited and comparative data regarding the EGFR GCN in primary colorectal cancer tumors and corresponding metastases or the effect of anti-EGFR antibody treatment on EGFR GCN in recurrent disease. In addition, little is known about the potential EGFR GCN changes during anti-EGFR therapy in comparison with other treatment regimens. EGFR GCN was analyzed by EGFR immunohistochemistry-guided silver in situ hybridization in primary and corresponding recurrent local or metastatic tumors from 8…

Male0301 basic medicineTime FactorsColorectal cancerBLOCKADEGene DosageCetuximabmedicine.disease_causeAntineoplastic Agents Immunological0302 clinical medicinePREDICTS RESPONSEMedicineHETEROGENEITYBENEFITCopy-number variationEpidermal growth factor receptorIn Situ Hybridization FluorescenceAged 80 and overbiologyPanitumumabvasta-aineetMiddle AgedImmunohistochemistry3. Good healthErbB ReceptorsGene Expression Regulation NeoplasticTreatment OutcomeRAS MUTATIONSChemotherapy Adjuvant030220 oncology & carcinogenesisFemaleKRASAntibodyColorectal NeoplasmsAdultgene copy numbermedicine.drug_classCETUXIMAB THERAPY3122 Cancerssilver in situ hybridizationDown-Regulationcolorectal cancerIn situ hybridizationAdenocarcinomaMonoclonal antibodyta3111Pathology and Forensic MedicineProto-Oncogene Proteins p21(ras)03 medical and health sciencesKRASHumansWILD-TYPEMETAANALYSISAgedRetrospective Studiessyöpähoidotbusiness.industrymedicine.diseaseta3122Blockadeperäsuolisyöpä030104 developmental biologymonoclonal antibodyMutationCancer researchbiology.protein3111 BiomedicineNeoplasm Recurrence Localbusinessepidermal growth factor receptorACQUIRED-RESISTANCEHuman Pathology
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Epidemiological, clinical and molecular characterization of Lynch‐like syndrome: A population‐based study

2019

Colorectal carcinomas that are mismatch repair (MMR)‐deficient in the absence of MLH1 promoter methylation or germline mutations represent Lynch‐like syndrome (LLS). Double somatic events inactivating MMR genes are involved in the etiology of LLS tumors. Our purpose was to define the clinical and broader molecular hallmarks of LLS tumors and the population incidence of LLS, which remain poorly characterized. We investigated 762 consecutive colorectal carcinomas operated in Central Finland in 2000–2010. LLS cases were identified by a stepwise protocol based on MMR protein expression, MLH1 methylation and MMR gene mutation status. LLS tumors were profiled for CpG Island Methylator Phenotype (…

Cancer ResearchMICROSATELLITE INSTABILITYDNA mismatch repairMISMATCH-REPAIR DEFICIENCYGene mutationmedicine.disease_cause0302 clinical medicinelynch syndromeFinlandMolecular Epidemiologyeducation.field_of_studyMutationISLAND METHYLATOR PHENOTYPENONPOLYPOSIS COLORECTAL-CANCERlynch-like syndromeTUMORSLynch syndrome3. Good healthOncology030220 oncology & carcinogenesissyöpätauditColorectal NeoplasmsMutL Protein Homolog 1Lynch-like syndromeAdult3122 CancersPopulationsuolistosyövätCpG island methylator phenotypeBiologyta3111FREQUENCYMLH103 medical and health sciencesGermline mutationcolorectal carcinomaBRAF MUTATIONCOLONmedicineHumansLynchin oireyhtymäeducationneoplasmsMSIAgedRetrospective StudiesCpG Island Methylator PhenotypeMicrosatellite instabilityDNASOMATIC MUTATIONSta3122CpG Island Methylator phenotypemedicine.diseaseColorectal Neoplasms Hereditary Nonpolyposisdigestive system diseasesCOPY NUMBERMutationCancer researchInternational Journal of Cancer
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Systemic circulating microRNA landscape in Lynch syndrome

2022

AbstractMicroRNAs (miRs) are non-coding RNA-molecules that regulate gene expression. Global circulating miR (c-miR) expression patterns (c-miRnome) change with carcinogenesis in various sporadic cancers. Therefore, aberrantly expressed c-miRs could have diagnostic, predictive and prognostic potential in molecular profiling of cancers. c-miR functions in carriers of inherited pathogenic mismatch-repair gene variants (path_MMR), also known as Lynch syndrome (LS), have remained understudied. LS cohort provides an ideal population for biomarker mining due to increased lifelong cancer risk and excessive cancer occurrence. Using high-throughput sequencing and bioinformatic approaches, we conducte…

next generation sequencingCancer Researchperinnölliset tauditOncologyhereditary cancersekvensointi3122 CancersbioinformatiikkasyöpätauditsuolistosyövätLynchin oireyhtymämikro-RNA
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