Linea Cecilie Melchior

ORCID: 0000-0001-7061-8859
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About
Contact & Profiles
Research Areas
  • Lung Cancer Treatments and Mutations
  • Cancer Genomics and Diagnostics
  • Colorectal Cancer Treatments and Studies
  • Salivary Gland Tumors Diagnosis and Treatment
  • Ear and Head Tumors
  • Glioma Diagnosis and Treatment
  • Genetic factors in colorectal cancer
  • Lung Cancer Research Studies
  • Pancreatic and Hepatic Oncology Research
  • Head and Neck Surgical Oncology
  • Forensic and Genetic Research
  • Radiomics and Machine Learning in Medical Imaging
  • Chromatin Remodeling and Cancer
  • Epigenetics and DNA Methylation
  • Genetic diversity and population structure
  • Gastric Cancer Management and Outcomes
  • Prion Diseases and Protein Misfolding
  • Neuroendocrine Tumor Research Advances
  • Cancer Cells and Metastasis
  • Tumors and Oncological Cases
  • Cutaneous Melanoma Detection and Management
  • Oral and Maxillofacial Pathology
  • Head and Neck Cancer Studies
  • Meningioma and schwannoma management
  • Neuroblastoma Research and Treatments

Rigshospitalet
2016-2025

University of Copenhagen
2007-2024

Copenhagen University Hospital
2015-2024

RELX Group (Netherlands)
2022

University of Bologna
2019

Ospedale Bellaria
2019

Istituto delle Scienze Neurologiche di Bologna
2019

University of Illinois Chicago
2018

University of Minnesota System
2018

University Health Network
2018

The New World Arctic, the last region of Americas to be populated by humans, has a relatively well-researched archaeology, but an understanding its genetic history is lacking. We present genome-wide sequence data from ancient and present-day humans Greenland, Arctic Canada, Alaska, Aleutian Islands, Siberia. show that Paleo-Eskimos (~3000 BCE 1300 CE) represent migration pulse into independent both Native American Inuit expansions. Furthermore, continuity characterizing Paleo-Eskimo period...

10.1126/science.1255832 article EN Science 2014-08-28

A large number of dry-preserved insect specimens exist in collections around the world that might be useful for genetic analyses. However, until now, recovery nucleic acids from such has involved at least partial destruction specimen. This is clearly undesirable when dealing with rare species or otherwise important specimens, as type specimens.We describe a method extraction PCR-amplifiable mitochondrial and nuclear DNA dry insects without causing external morphological damage. Using PCR to...

10.1371/journal.pone.0000272 article EN cc-by PLoS ONE 2007-03-06

Low-grade sinonasal adenocarcinomas (low-grade SNACs) of the tract comprise a poorly characterized and histologically heterogeneous group tumors. We describe three cases distinct variant low-grade SNAC by ETV6 gene rearrangements. The patients included 2 women (aged 32 88 y) man 75 y); all were initially treated with surgery alone. Follow-up ranged from 9 to 170 months one patient having local recurrences none experiencing distant or regional metastases. Tumors composed cytologically bland...

10.1097/pas.0000000000000912 article EN The American Journal of Surgical Pathology 2017-07-18

The spectrum of tumors arising in the salivary glands is wide and has recently been shown to harbor a network tumor-specific fusion genes. Acinic cell carcinoma (AciCC) one more frequently encountered types gland carcinoma, but it remained genetic orphan until when between HTN3 MSANTD3 genes was described case. Neither these 2 known be implicated any other malignancy. This study undertaken investigate whether - recurrent event AciCC characteristic its histological variants. Of 273 AciCCs...

10.1097/pas.0000000000001200 article EN The American Journal of Surgical Pathology 2018-12-05

Abstract Glioneuronal tumors are a heterogenous group of CNS neoplasms that can be challenging to accurately diagnose. Molecular methods highly useful in classifying these tumors—distinguishing precise classes from their histological mimics and identifying previously unrecognized types tumors. Using an unsupervised visualization approach DNA methylation data, we identified novel ( n = 20) formed cluster separate all established tumor types. analyses revealed ATRX alterations (in 16/16 cases...

10.1007/s00401-023-02558-0 article EN cc-by Acta Neuropathologica 2023-03-18

Before initiating treatment of advanced non-small-cell lung cancer with tyrosine kinase inhibitors (eg, erlotinib, gefitinib, osimertinib, and afatinib), which inhibit the catalytic activity epidermal growth factor receptor (EGFR), clinical guidelines require determining EGFR mutational status for activating (EGFR exons 18, 19, 20, or 21) resistance exon 20) mutations. The mutation T790M should be monitored at progression. Idylla Mutation Assay, performed on molecular diagnostics platform,...

10.1016/j.jmoldx.2019.06.010 article EN cc-by-nc-nd Journal of Molecular Diagnostics 2019-08-22

Using established criteria for work with fossil DNA we have analysed mitochondrial from 92 individuals 18 locations in Denmark ranging time the Mesolithic to Medieval Age. Unequivocal assignment of mtDNA haplotypes was possible 56 ancient individuals; however, success rate varied substantially between sites; highest rates were obtained untouched, freshly excavated material, whereas heavy handling, archeological preservation and storage many years influenced ability obtain authentic endogenic...

10.1371/journal.pone.0011898 article EN cc-by PLoS ONE 2010-07-30

Anaplastic lymphoma kinase-positive non-small cell lung carcinoma patients are generally highly responsive to the dual anaplastic kinase and MET tyrosine inhibitor crizotinib. However, they eventually acquire resistance this drug, preventing inhibitors from having a prolonged beneficial effect. The molecular mechanisms responsible for crizotinib beginning emerge, e.g., in some carcinomas development of secondary mutations gene has been described. events behind crizotinib-resistance currently...

10.1186/1756-0500-6-489 article EN cc-by BMC Research Notes 2013-11-26

// Jan Nyrop Jakobsen 1, * , Eric Santoni-Rugiu 2, Morten Grauslund 2 Linea Melchior and Jens Benn Sørensen 1 Department of Oncology, Copenhagen University Hospital/Rigshospitalet, Copenhagen, Denmark Pathology, Equal first authors Correspondence to: Jakobsen, email: jan.nyrop.jakobsen@regionh.dk Santoni-Rugiu, eric.santoni-rugiu.02@regionh.dk Keywords: NSCLC; EGFR; erlotinib; tarceva; mutation Received: February 19, 2018 Accepted: May 05, Published: 25, ABSTRACT Background: Patients with...

10.18632/oncotarget.25490 article EN Oncotarget 2018-05-25

Since the advent of monoclonal antibodies against epidermal growth factor receptor (EGFR) in colorectal cancer therapy, determination RAS mutational status is needed for therapeutic decision-making. Most prevalent are KRAS exon 2 mutations (40% prevalence); lower prevalence observed 3 and 4 (6%) NRAS 2, 3, (5%). The Idylla™ Mutation Test on molecular diagnostics platform a simple (<2 minutes hands-on time), highly reliable, rapid (approximately hours turnaround time) vitro diagnostic...

10.1371/journal.pone.0163444 article EN cc-by PLoS ONE 2016-09-29

Polymorphous adenocarcinoma (PAC) of the palatal minor salivary glands, previously known as polymorphous low-grade adenocarcinoma, is second most common intraoral malignant gland carcinoma after adenoid cystic (ACC) and carries an excellent prognosis. Unfortunately, PAC demonstrates cytological overlap with 2 other tumors frequently encountered in same location, namely ACC pleomorphic adenoma (PA). Recently, protein kinase D1 (PRKD1) hotspot mutation E710D was demonstrated to be specific for...

10.1002/cncy.21959 article EN Cancer Cytopathology 2017-12-20

Anaplastic lymphoma-kinase (ALK)-rearranged non-small cell lung cancer (NSCLC) is prone to developing heterogeneous, only partly known mechanisms of resistance ALK-tyrosine-kinase-inhibitors (ALK-TKIs). We present a case 38-year old male, who never smoked with disseminated ALK-rearranged (EML4 (20) – ALK fusion variant 2) adenocarcinoma, received four sequentially different ALK-TKIs and two lines chemotherapy in-between. observed significant clinical benefit by the first three (Crizotinib,...

10.3390/ijms21082847 article EN International Journal of Molecular Sciences 2020-04-19

Herein, we wanted to explore the molecular landscape of mucosal melanoma from different sites and identify potential targets for future therapy. Mucosal melanomas ( N = 40) (conjunctiva, sinonasal cavity, rectum, vagina) were investigated. Targeted next-generation sequencing along with Nanostring gene expression profiling was performed. Genetically, conjunctival characterized by BRAF -V600E (30%) NF1 mutations (17%). at nonsun-exposed harbored alterations in NRAS , KIT atypical mutations....

10.1097/cmr.0000000000000686 article EN Melanoma Research 2020-07-21

Abstract The 15th century Inuit mummies excavated at Qilakitsoq in Greenland 1978 were exceptionally well preserved and represent the largest find of naturally mummified specimens from Arctic. estimated ages individuals, their distribution between two adjacent graves, results tissue typing, incomplete STR led researchers to conclude that eight formed distinct family groups: A grandmother (I/5), daughters (I/3, I/4), children (I/1, I/2) one grave, sisters (II/6, II/8) a daughter (II/7) them...

10.1002/ajpa.20602 article EN American Journal of Physical Anthropology 2007-04-11

Silver–Russell syndrome (SRS) is characterised by prenatal and postnatal growth retardation, dysmorphic facial features, body asymmetry. In 35–60% of SRS cases the paternally methylated imprinting control region (ICR) upstream <i>H19</i> gene (H19-ICR) hypomethylated, leading to downregulation <i>IGF2</i> bi-allelic expression <i>H19</i>. are reciprocally imprinted genes on chromosome 11p15. The regulated methylation ICR, which modulates transcription facilitated enhancers downstream A...

10.1136/jmg.2010.086504 article EN Journal of Medical Genetics 2011-01-28

Abstract Background The detection of human papillomavirus (HPV) has several implications in the diagnostic work-up and management oropharyngeal squamous cell carcinoma (OPSCC). choice HPV assay testing algorithms differ across institutions vary cost, targets, technical feasibility, turnaround time. In this study, we aimed to validate VisionArray® Chip for formalin-fixed paraffin-embedded (FFPE) samples OPSCC using previously applied standard pan-HPV DNA PCR as a reference. Methods validation...

10.1007/s12105-024-01628-3 article EN cc-by Head and Neck Pathology 2024-03-27
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